9500DWT成品油轮开题报告

management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, information technology security, entrust XX City Center for educational information and equipment dedicated to the work. Network security leading group was set up, chaired by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and information ... eam. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is included in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report and disposal processes. According to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimension management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and password of the computer for its proprietary, and release of provisions is prohibited, such as leaks, investigated for responsibility. According to who is in charge of who's in charge, who is running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education information systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-books, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information security grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zhaokuan to schools, hundreds of megabytes of broadband to the table, ' wire ' (ie: Web, video, audio) to the target, electronic whiteboards, multimedia classrooms, remote interactive video teaching system of modern educationalequipment in the classroom. ... With Intel company on XX Education City domain network of topic case design, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physical fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual education resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the city's primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advanced, practical Gigabit educational metropolitan area network, the city's schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can meet the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teaching points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teaching points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teaching points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Bureau on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern distance education teaching project leading group, XX, chaired the Secretary for education. Established, digital resources in modern distance education teaching, XX full coverage project group, XX, Director of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage project leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering project management and implementation. According to provinces arrangements, I Center has arrangements Gong9500DWT成品油轮总体方案设计研究

油轮设计的目的意义, 国内外发展概况

油轮（oil tanker），是油船的俗称，是指载运散装石油或成品油的液货运输船舶。从广义上讲是指散装运输各种油类的船，除了运输石油外，装运石油的成品油，各种动植物油，液态的天然气和石油气等。但是，通常所称的油船，多数是指运输原油的船。而装运成品油的船，称为成品油船. 油轮很容易与其它轮船区别开来，油轮的甲板非常平，除驾驶舱外几乎没有其它耸立在甲板上的东西。油轮不需要甲板上的吊车来装卸它的货物，只有在油轮的中部有一个小吊车，这个吊车的用途在于将码头上的管道吊到油轮上来与油轮上的管道系统接到一起。油轮上的管道系统从远处就可以看到。油轮卸货时所使用的泵直接放在船上。今天的油轮与几乎所有其它海轮一样配有货物计算机，这部计算机可以监视货物的装卸以及计算装卸过程中船所受的所有的力。

除油箱和管道外油轮上还配有锅炉、螺旋桨、发电机、泵（大的油轮上的装卸泵可以每小时泵上万吨液体）和灭火装置。

今天装载易燃液体的油轮都使用不燃气体充入油轮中的空的油箱的方法来防止燃烧或爆炸的危险。这些不燃气体排挤掉含氧的空气，使得油轮内空油箱里几乎完全没有氧气。有些船使用船本身的动力机构排出的废气来提炼上述的不燃气体，有些船则在卸货时从码头上充入不燃气体。

大多数运输原油的油轮可以装载上十万吨货物，90%使用蒸汽机作为动力装置，原因是原油必须加热后才有足够的流动性可以被泵入油轮，在整个运输过程中它们始终被保持在加热的状态下，这样可以在目的地快速地卸货。因此驱动的蒸汽机还可以用来提供加热原油的蒸汽。 原油的运输速度不重要，因此这些船的航速一般在15节（28千米/小时）左右，它们属于比较慢的船。

油轮按载重吨位可分为：

（1）小型油船（0.6万吨载重吨以下），以运载轻质油为主 （2）中型油船（0.6~3.5载重吨万吨），以运载成品油为主 （3）大型油船（3.5~16载重吨万吨），以运载原油为主，偶尔载运重油

（4）巨型、超级油船（16万吨载重吨以上VLCC、40万吨载重吨以上ULCC），专用运载原油

油轮按载重船型可分为：

（1）超级油轮(16万吨载重吨以上)，超过16万吨的油轮被称为超大型油轮，超过40万吨的油轮被称为超级巨型油轮，一般超过20万吨的油轮都被称为超级油轮 （2）苏伊士型油轮(Suezmax，12万—16万载重吨)

（3）阿芙拉型油轮(Aframax，8万—12万载重吨)，该型船舶可以停靠大部分北美港口，并可获得最佳经济性，又被称为“运费型船”或“美国油轮船” （4）巴拿马型油轮(6万—8万载重吨) （5）灵便型油轮(1万—5万载重吨) （6）通用型油轮(1万吨以下) 世界上第一艘油轮（好运号，Glückauf）是1886年7月13日首航的，它属于德国船舶公司德国—美国石油公司。它长97米，可以载3000吨油，由于大船的每吨运载价格比较低，

mprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX Education Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equipment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so that there was a hardware failure in a system crash can resume quickly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security assessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equipment failure, should be processed in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Microsoft Office software. Schools (units) of computer, information system security products for domestic products, including the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that he XX education system network and information system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the city, forming technology with a strong professional and technical team, school network managers on common network failures and be capable of solving security issues. Issues that cannot be resolved, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedback to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equipment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Chen Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each teaching points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teaching points schoolfor good satellite ground station installation pres school related management perXX province teaching points digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual ... Devices are able to receive TV signals and IP data, the schools have school training and school-based appliuse ication to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, ducation technology seXX, Sun class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. pared of notification, requirementAt present, in the open space of public service platform of provisonnel familiar ncial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the city's total students 18.31 to (junior high school students in 30 ﹪above, students not required), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technology application capability as a means to boost teaching of teachers to nformation, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provincial model school of modern election, advanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, education assessment information work more than to cut weight 10. Practice is a regular room supervision, education information steering, steering, steering with the end, principals of education information into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participated in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers ' educational technology proficiency test certificate. At present, all schools have access to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and network management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, information technology application capability training of teachers in our city reached 100. XX series of effective information management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, information technology security, entrust XX City Center for educational information and equipment dedicated to the work. Network security leading group was set up, chaired by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and information ... eam. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is included in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report and disposal processes. According to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimension management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and password of the computer for its proprietary, and release of provisions is prohibited, such as leaks, investigated for responsibility. According to who is in charge of who's in charge, who is running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education information systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-books, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information security grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zhaokuan to schools, hundreds of megabytes of broadband to the table, ' wire ' (ie: Web, video, audio) to the target, electronic whiteboards, multimedia classrooms, remote interactive video teaching system of modern educationalequipment in the classroom. ... With Intel company on XX Education City domain network of topic case design, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physical fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual education resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the city's primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advanced, practical Gigabit educational metropolitan area network, the city's schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can meet the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teaching points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teaching points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teaching points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Bureau on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern distance education teaching project leading group, XX, chaired the Secretary for education. Established, digital resources in modern distance education teaching, XX full coverage project group, XX, Director of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage project leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering project management and implementation. According to provinces arrangements, I Center has arrangements Gong因此油轮不断变大。虽然这些油轮非常大，但即使最大的油轮也只需要30到40名船员。 这些大船也有其弊病。虽然它们的船壁达三到四米厚，它们依然有结构上的困难，施加在这些船上的力太大了，以致于它们可能变形或裂开。由于它们吃水深，它们只能停靠少数港口。它们无法通过巴拿马运河，不过即使45万吨的油轮在空行时也能通过苏伊士运河。事实上这样大的油轮主要是在1967年到1975年苏伊士运河被关闭的时候建造的，因为当时从波斯湾去往美国或欧洲只有绕过好望角。 双壳油轮是拥有两层外壳的油轮。

一开始建造双壳油轮的目的是节省运送需要加热的液体如沥青、糖蜜或石蜡时的能量（和价格），因为两层壳的隔热性能比较好。 今天建造双壳油轮的动机是提高其安全性，防止油外泄，但两层船壳之间的空间也被用来做压载舱来按照船载货的情况来平衡船身。作为压载的是抽入船壳间的海水。 但是盐水对船的内壁的腐蚀非常大，而由于船的两层壳之间非常窄，因此船员无法使用船上的设施来确定内壁腐蚀的程度。因此有些专家怀疑双壳油轮的效果。 中国目前仅有15艘超级油轮

截至2005年底，中国远洋油轮运力约为924万载重吨。这些油轮平均船龄18年，比全球运输船队的平均船龄大6年；中国的船舶结构也存在问题，船型偏小，单船平均载重不到10万吨。

以国内最大的三家油轮公司为例，中国海运集团拥有现役各种大小油轮83艘，运输能力为392万吨；中远集团现拥有油轮26艘，载重吨为320万吨；排名第三的招商轮船目前运营的油轮有14艘，运力为245万吨。据航运专家估计，中国大型油轮船队的规模要保证能承运50%以上进口原油，需要在2010年达到7500万吨以上的能力，2020年具备1.3亿吨以上的能力。

由于大型油轮具有良好的性价比，因此在造船业发达的现代，世界各大国的海运巨头，竞相发展超级油轮。而目前中国上述三家公司的超级油轮只有15艘，总载重量不到450万吨。

从目前航线的结构来看，在中东东行航线上，2002年中国船东所承运的进口石油为130万吨，全由招商局船队承运，只占该航线石油进口的3.78%。在西非东行航线上，中国船东承运为零。

早在2002年8月，中国交通部就颁布了《公路水路交通发展战略》，明确提出了“海运强国战略”。这个战略明确提出，必须建立中国自己强大的国际海运船队。为了支持造船厂建造大型油轮，国家财政将向造船厂提供全额贴息贷款。据悉，国家为此已圈定三大造船基地，集中力量建设渤海湾、长江口、珠江口三大造船基地。

针对这些情况，国内各大海运公司也在加紧订造轮船。以招商轮船为例，已公告的订单信息中超级油轮4艘、阿芙拉型油轮5艘。到2010年，招商轮船将新增运力170万吨。 据报道，中海集团在2007年内将共计增加6条新船入队，而公司计划至2010年之前，增加25条新船、350万吨载重，总运力可增加八成左右。随着国内各大海运集团加速扩张远洋油轮船队，预计到2010年后，中国进口的原油和成品油将有50%由中国油轮运输，石油运输安全问题将得到有效改善。

不过，有专家指出，打造一支自己的超级油轮船队并不容易，它面临周期长、投资大、风险高等问题。虽然中国船东的承载能力相对于中国石油进口需求而言，呈现明显的运力不足，全球油轮运输的供求关系，仍处于运力过剩状态。一旦经营不善，偿还巨额贷款的压力极大。因此，超级油轮船队的打造是一项十分庞大、复杂的工程，仅凭企业自身努力，难以在短期内形成，必须由政府主管部门进行政策引导，同时需要航运、石化、造船、金融等相关企业的协作配合。

mprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX Education Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equipment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so that there was a hardware failure in a system crash can resume quickly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security assessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equipment failure, should be processed in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Microsoft Office software. Schools (units) of computer, information system security products for domestic products, including the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and information system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the city, forming technology with a strong professional and technical team, school network managers on common network failures and be capable of solving security issues. Issues that cannot be resolved, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedback to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equipment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Chen Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each teaching points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teaching points schoolfor good satellite ground station installation pres school related management perXX province teaching points digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual ... Devices are able to receive TV signals and IP data, the schools have school training and school-based appliuse ication to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, ducation technology seXX, Sun class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. pared of notification, requirementAt present, in the open space of public service platform of provisonnel familiar ncial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the city's total students 18.31 to (junior high school students in 30 ﹪above, students not required), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technology application capability as a means to boost teaching of teachers to nformation, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provincial model school of modern election, advanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, education assessment information work more than to cut weight 10. Practice is a regular room supervision, education information steering, steering, steering with the end, principals of education information into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participated in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers ' educational technology proficiency test certificate. At present, all schools have access to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and network management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, information technology application capability training of teachers in our city reached 100. XX series of effective information management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, information technology security, entrust XX City Center for educational information and equipment dedicated to the work. Network security leading group was set up, chaired by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and information ... Team. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is included in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report and disposal processes. According to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimension management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and password of the computer for its proprietary, and release of provisions is prohibited, such as leaks, investigated for responsibility. According to who is in charge of who's in charge, who is running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education information systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-books, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information security grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zhaokuan to schools, hundreds of megabytes of broadband to the table, ' wire ' (ie: Web, video, audio) to the target, electronic whiteboards, multimedia classrooms, remote interactive video teaching system of modern educational equipment in the classroom. ... With Intel company on XX Education City domain network of topic case design, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physical fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual education resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the city's primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advanced, practical Gigabit educational metropolitan area network, the city's schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can meet the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teaching points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teaching points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teaching points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Bureau on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern distance education teaching project leading group, XX, chaired the Secretary for education. Established, digital resources in modern distance education teaching, XX full coverage project group, XX, Director of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage project leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering project management and implementation. According to provinces arrangements, I Center has arrangements Gong 中国打造超级油轮船队不仅迫在眉睫，而且意义重大。首先，建立自己的超级油轮船队，可以降低海外资源进口成本。特别是20万和30万吨级油轮的规模效应，可使单位运输成本接近为零；其次，借鉴日本经验，可顺势带动我国钢铁、贸易以及金融的全面发展；第三，拥有自主超级油轮船队，有利于破解日本等国际海运巨头乘机垄断海运价格的风险。 一旦拥有了自己的超级油轮船队，除了将获得以上的优势外，还将对中国的石油进口有着特殊的安全意义。由于中国的石油进口构成中，中东和非洲进口的石油占了绝大部分，因此石油运输要经过漫长的海道，而且还要途经一系列脆弱的隘口，其中包括战乱频繁的霍尔木兹海峡和海盗横行的马六甲海峡。 由于美国在这些地区的军事布控，石油运输通道极有可能由于战争、恐怖袭击和政治因素等切断，从而威胁着中国的石油安全。 一旦拥有了自己的超级油轮船队，中国政府便可以在局势危乱时，理直气壮地进行武装护航，更可以在发生问题后及时有力地进行危机处理，避免因外租油轮而造成的种种认证、问责环节，更加妥善地保护中国企业的利益乃至整个国民经济的安全。

全球油轮市场的总体分析：国际油轮市场呈现好转迹象，世界油轮市场需求增长，欧盟对油轮液化气船需求逐步增加。

中国油轮制造业：中国造船业取得重大突破，国内油轮运输船队资本市场借东风，中国新一代绿色环保油轮在上海问世，上海最大原油轮完工交付，欧盟禁止单壳油轮单方行动已经实施，国际海事组织欲把淘汰单壳油轮时限提前5年，单壳油轮禁令将影响中国燃料油价格。

油轮市场前景展望：油轮市场发展风起云涌，双壳油船商机无限，成品油轮逐渐成为航运市场发展的新宠，油轮市场趋势分析与船队发展趋势对策。

油轮设计的内容和预期目标

设计内容包括：选题背景分析，设计任务书分析，主尺度认证，总布置设计，型线

设计，螺旋桨设计，性能分析等，设计过程采用母型设计法

设计的预期目标：按照中国船级社（CCS）《钢制海船入级与建造规范》的要求，

设计一艘在设计吃水下载重量为9500DWT的成品油轮，在深海，静水，风力不超过蒲氏2级，无污底，在设计吃水状态下，以最大持续输出的情况下，试航航速为13.5KN，在设计吃水状态下，以持续服务功率情况下的服务航速为13.5KN，在设计吃水，13KN航速的正常航行状态下，续航力约为10000海里，自持力约为60天。船员定额为28人，另有领航员一人，其中高级船员8人，中级船员10人，普通船员10人。

mprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX Education Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equipment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so that there was a hardware failure in a system crash can resume quickly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security assessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equipment failure, should be processed in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Microsoft Office software. Schools (units) of computer, information system security products for domestic products, including the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and information system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the city, forming technology with a strong professional and technical team, school network managers on common network failures and be capable of solving security issues. Issues that cannot be resolved, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedback to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equipment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Chen Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each teaching points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teaching points schoolfor good satellite ground station installation pres school related management periliar XX province teaching points digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual ... Devices are able to receive TV signals and IP data, the schools have school training and school-based appliuse ication to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, ducation technology seXX, Sun class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. pared of notification, requirementAt present, in the open space of public service platform of provisonnel famncial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the city's total students 18.31 to (junior high school students in 30 ﹪above, students not required), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technology application capability as a means to boost teaching of teachers to nformation, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provincial model school of modern election, advanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, education assessment information work more than to cut weight 10. Practice is a regular room supervision, education information steering, steering, steering with the end, principals of education information into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participated in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers ' educational technology proficiency test certificate. At present, all schools have access to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and network management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, information technology application capability training of teachers in our city reached 100. XX series of effective information management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, information technology security, entrust XX City Center for educational information and equipment dedicated to the work. Network security leading group was set up, chaired by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and information ... eam. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is included in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report and disposal processes. According to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimension management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and password of the computer for its proprietary, and release of provisions is prohibited, such as leaks, investigated for responsibility. According to who is in charge of who's in charge, who is running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education information systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-books, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information security grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zhaokuan to schools, hundreds of megabytes of broadband to the table, ' wire ' (ie: Web, video, audio) to the target, electronic whiteboards, multimedia classrooms, remote interactive video teaching system of modern educationalequipment in the classroom. ... With Intel company on XX Education City domain network of topic case design, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physical fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual education resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the city's primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advanced, practical Gigabit educational metropolitan area network, the city's schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can meet the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teaching points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teaching points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teaching points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Bureau on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern distance education teaching project leading group, XX, chaired the Secretary for education. Established, digital resources in modern distance education teaching, XX full coverage project group, XX, Director of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage project leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering project management and implementation. According to provinces arrangements, I Center has arrangements Gong油轮设计的技术关键

船型：

本船为钢质液货油船，液货舱型式为整体重力式液货船，船首设球首。船尾采用巡洋舰尾，单机单桨单舵，船体采用双层底设计，左右设边舱，前后设隔离舱。上层建筑不可太长，但又考虑到船员居住的舒适性，因而对船舶的总布置也有一定的要求，为满足任务书中对货舱容积的要求，需采用较大的型深，为了简化建造工艺，减低建造成本，全船设单层连续甲板，大的型深可以保证舱容和最小干舷的要求，大的型宽有利于改善水线面系数，对总布置也是有利的，尽可能加大平行中体的长度，不仅对舱容有保证，同时也可简化设计型线，油船所装载的成品油泄露会对海洋及内河产生严重的污染，因此采用双底双壳结构，以提高其安全性。

性能：

本船方型系数的选取要从舱容和阻力性能方面考虑，在保证舱容的前提下，还要兼顾快速性。 现代运输船舶上，球首的运用已相当广泛，本船采用了球首，船尾采用巡洋舰尾，以减小阻力，提高效率，从而获得较高的航速。

球首的主要作用是减小阻力，有利于提高推进效率，对于不同速度和形状的船，球首的减阻机理不同的，对于肥大船型，主要是减少舭涡阻力和破波阻力。 本船的航速要求为13KN,为达到这个速度，应采用较大的主机功率中低速机，根据主机布置原则，尾机型在推进和货舱布置上占有较大的优势。 在考虑到船在各种装载下能正常航行，而螺旋桨不能露初水面，需要布置相当数量的压载水舱对船舶重心的影响，那么要注意对横摇周期的影响，为改善耐波性，可设首升高甲板，以防止甲板上浪。

消防，救生设备：

消防：全船设水灭火系统，液货舱上甲板区域设甲板泡沫灭火系统，机舱和货泵舱设高压CO2灭火系统，水灭火系统，手提式泡沫灭火系统，手提式CO2灭火系统，艏侧推舱设干粉灭火系统与手提式CO2灭火系统

救生：救生系统必须满足相关要求，全船设置机动救生兼工作艇一艘，配置其他救生设备，救生艇的吊杆符合规范的要求，并且有使用方便的起卸救生艇的设备或方法。救生艇设备和救生用具的供应必须符合海船救生设备的规范要求

通风设备，隔热设备：

通风设备：所有的货油舱应该布置高压力独立的通风设备，这些压力通风设备必须用耐压的铸铁件制作，所有的通风设备的管系，容器，零件的质量不差与货油舱外部系统的质量 隔热设备：住室处所，餐厅铁壁内木质天花板，并隔热材料。 通讯，航海仪器设备及其他：

通讯设备：自动报警信号接收机及发报机一套，电话若干，播音机及收音机各一套，救生艇发报机及SOS一部，传令钟一部，传令筒若干，应急收发报机各一套，所有无线电通讯设备应满足各种相关规范的要求。

航海仪器设备：标准磁罗经与操舵罗经各一套，电动回声探测以一只，天文钟一只等等，所有无线电通讯设备应该满足相关规范的要求。

mprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX Education Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equipment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so that there was a hardware failure in a system crash can resume quickly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security assessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equipment failure, should be processed in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Microsoft Office software. Schools (units) of computer, information system security products for domestic products, including the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and information system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the city, forming technology with a strong professional and technical team, school network managers on common network failures and be capable of solving security issues. Issues that cannot be resolved, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedback to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equipment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Chen Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each teaching points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teaching points schoolfor good satellite ground station installation pres school related management perXX province teaching points digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual ... Devices are able to receive TV signals and IP data, the schools have school training and school-based appliuse ication to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, ducation technology seXX, Sun class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. pared of notification, requirementAt present, in the open space of public service platform of provisonnel familiar ncial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the city's total students 18.31 to (junior high school students in 30 ﹪above, students not required), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technology application capability as a means to boost teaching of teachers to nformation, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provincial model school of modern election, advanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, education assessment information work more than to cut weight 10. Practice is a regular room supervision, education information steering, steering, steering with the end, principals of education information into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participated in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers ' educational technology proficiency test certificate. At present, all schools have access to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and network management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, information technology application capability training of teachers in our city reached 100. XX series of effective information management systems and measures established by, and a number of pragmatic, combined part-time workforce education information, the protection of the digital campus construction and sustainable development. Six Bureau attaches great importance to information technology security, information technology security, entrust XX City Center for educational information and equipment dedicated to the work. Network security leading group was set up, chaired by the Education Bureau Chief, head, for XX education Metro-network and information security emergency response leadership. Deputy group leader for XX educational metropolitan area network and information security emergency response coordination, command. The team assist leader and deputy leader, responsible for network XX network security and information ... Team. Information security work Conference held each semester, and deployment of information security of documents issued on a regular basis. Information security assessment is included in the annual index. Strictly implement the information security budget to ensure information security of investment. By XX, education information and equipment Centre XX network network security and information security. According to the information technology security requirements, issued a document requires schools (units) implement, defined the information security guidelines, specific work practices, procedures, and requirements. Clear industry information security incidents (accidents) to detect, report and disposal processes. According to self-examination, the school (units) basic established has network security management system; the school (units) according to this units actual, established has units personnel management, information system room management, and equipment management, and media management, and network security construction management, and shipped dimension management, and service outsourcing, management system; developed has computer and the network of network security responsibility held system, signed has network security responsibility; website of information management personnel is responsible for confidential management, password management, on computer enjoys independent right, User name and password of the computer for its proprietary, and release of provisions is prohibited, such as leaks, investigated for responsibility. According to who is in charge of who's in charge, who is running and who is responsible for, who uses principles of who is in charge of management schools (units) defined the roles and responsibilities of information security, assurance responsibilities to schools. XX city schools (units) total site 20, 19 of which were not classified security protection assessment, of which 1 (XX education and resource network) for classified security protection levels, without third-level information systems. otal education information systems 1 (XX education cloud platform), contains features with e-Government, resource library, test database, mail services, such as e-books, all intranet services. No for grade protection grading record and evaluation of school (units), requirements the school (units) according to information security grade protection about policy and standard, organization carried out information security grade protection security management system construction, and technology measures construction and grade evaluation, implementation grade protection system of the requirements, makes information system security management level obviouslyfacility up to 160 million Yuan, according to the standard, high quality planning XX educational metropolitan area network realizes Wan Zhaokuan to schools, hundreds of megabytes of broadband to the table, ' wire ' (ie: Web, video, audio) to the target, electronic whiteboards, multimedia classrooms, remote interactive video teaching system of modern educational equipment in the classroom. ... With Intel company on XX Education City domain network of topic case design, relies on Cisco company thought Shu aid chuan project staff free provides has three years technology support, from 2009 began, according to high standards, and high of work thought, and manpower planning, and points step implementation, using school earthquake Hou reconstruction of opportunities, again planning elementary and middle schools campus network and education city domain network, and local broadcasting network company cooperation, using broadcast TV network, will physical fiber laying to each school, to minimum of cost achieved has physical fiber school school pass; Each school construction standards of campus network and network access to all rooms; XX education metropolitan area network center machine room equipment in the Ministry of education standardization management platform, the Central Library of audio-visual education resources, set up a Chinese teacher education cloud platform, implemented links the two platforms. At present, the city's primary and middle school students to computer 3198, vitality than 10:1; 809 equipment classes through the classroom (primary and secondary); 36 of the campus network. The establishment of an advanced, practical Gigabit educational metropolitan area network, the city's schools have access to educational metropolitan area network, schools have computer networks, closed-circuit television network, broadcast networks into the classrooms, realize the triple play. Schools share Internet bandwidth, can meet the needs of teaching of the school office and at any time. According to Ministry of education on full started implementation teaching points digital education resources full cover project of notification (taught technical letter (2012) 74th,) and XX Province Department of education on issued XX province teaching points digital education resources full cover project implementation views of notification (chuan taught letter (2013) 18th,) requirements, I city 6 a teaching points implementation teaching points digital education resources full cover project, combined I city specific situation, developed issued has XX City Bureau on teaching points digital resources full cover project of implementation programme, Established XX, full coverage of digital resources in modern distance education teaching project leading group, XX, chaired the Secretary for education. Established, digital resources in modern distance education teaching, XX full coverage project group, XX, Director of the Center for educational information and equipment chaired Zhu Guiyan, responsible for distance education digital resources covering project work. Projects in XX city school digital resources in modern distance education teaching full-coverage project leading group, digital resources in modern distance education teaching, and XX full coverage project group leadership and organization, in accordance with the unified arrangement of the whole province, responsible for university education digital resources covering project management and implementation. According to provinces arrangements, I Center has arrangements Gong油轮设计的进度安排

第一周至第二周：明确任务，查阅资料，开题报告 第三周至第六周：总布置图，外文翻译 第七周至第十周：型线条

第十一周至第十五周：静水力计算，性能计算，螺旋桨设计，结构图 第十六至第十七周：撰写论文，答辩

经济效益分析

成品油轮的设计和制造需要遵守有关规范，规则和公约，满足防污染公约等要求，需要较高的安全可靠性，为了满足较高的安全可靠性需求，成品油轮需要复杂的温度控制系统，液货装卸系统和特殊的涂装，这些特殊的要求都需要强大的设计和制造技术实力以及丰富的经验积累，因此化学品船是船舶产品中制造难度和附加值较高的产品，成品油轮的技术难点使得成品油轮的建造成本偏高，另外成品油轮的使用年限与其他类船舶相比偏短，一般只有10至15年，因此船东们一直有延长成品油轮使用年限的强烈要求。

mprove, security prevention capacity obviously enhanced, security hidden and security accident obviously reduced, effective guarantees information health development. XX Education Centre regularly carry out day-to-day network security monitoring information and equipment. By the appropriate technical staff, XX network engine room maintenance staff on site management and maintenance on a regular basis, scheduled viewing of networks, systems, databases and associated equipment operating conditions, and make a record. Computer lab maintenance managers regularly run a variety of devices in the school information system parameters, server systems and various data backup, so that there was a hardware failure in a system crash can resume quickly and efficiently. Computer lab maintenance managers establish a network antivirus system, Avira Virus system on a regular basis, and anti-virus software security assessment, time to upgrade. Computer lab maintenance management for all equipment in the room a regular dust, replace the old label. Regularly host servers, network switches, core routing, firewalls, hardware maintenance, such as equipment failure, should be processed in a timely manner in order to ensure safe and reliable operation of the system. In XX city information and equipment was established within the Centre, educational metropolitan area network center machine room XX. Servers and data stores and applications to set up in XX City metropolitan area network center machine room. WindowsServer2003, windowsServer2008, windowsServer2012, Linux, the operating system, the database for SQL Server2008, Office software, such as Microsoft Office software. Schools (units) of computer, information system security products for domestic products, including the use of 360 and kingsoft Internet security software. XX education metropolitan area network used by the server for HP, firewall and information security product for Huaweiand Cisco products. In their daily work, to publicize related knowledge and information security considerations. Enhanced global awareness of network and information security, and strive to achieve network everyone knows security and virus before the guard, to improve network and information security, ensure that the XX education system network and information system security. Tracking reporting system requires all parties to strengthen collaboration, work closely with emergency safety plan developed XX education metropolitan area network, regularly carry out emergency drills, and carried out special funds every year to protect the security of information. Annual 2-3 professional training for network managers in the city, forming technology with a strong professional and technical team, school network managers on common network failures and be capable of solving security issues. Issues that cannot be resolved, timely forms of meetings, such as meetings, analysis, and solutions through a meeting, without rolling up the ability to solve problems, and feedback to superiors in writing departments to resolve. Through self-examination, we are well aware, relative lack of investment in education, facilities and equipment for further updates, education development is still uneven, new education concepts need to be further enhanced to some extent and restricting the development of city education. We will take the opportunity of government supervision, to strive for the province education demonstration counties as a driving force, further increase input in education, efforts to promote thelong wing, and Li Wanfu, and Michael Jenkins, and Chen Jian, and Song and xiaochuanyun, 7 bit comrade participate in province backbone face-to-face or network learning, do each teaching points are has teachers participate in training, October 17, 2013, issued XX city education information and equipment Center on requirements the teaching points schoolfor good satellite ground station installation pres school related management periliar XX province teaching points digital education resources full cover project construction management manual, Particularly with regard to installation preparation parts according to the point of XX province full coverage of digital educational resources in the project construction management manual ... Devices are able to receive TV signals and IP data, the schools have school training and school-based appliuse ication to use good. Actively organize implementation of a division of a class, a teacher in one class activity. XX in XX city first to complete full registration of teachers working in this city, ducation technology seXX, Sun class rate of 54 per cent respectively, the forefront. In XX, a division of a class, a class a total ranked first in Division activities, was awarded the national ministerial one, 2 provincial second prize, third prize at the provincial level 3. Actively organize implementation of the e-learning space the work of everyone. pared of notification, requirementAt present, in the open space of public service platform of provisonnel famncial educational resources teachers number 2444, 83 to the total number of teachers, student number is 6569 of the open space, the city's total students 18.31 to (junior high school students in 30 ﹪above, students not required), registration number to meet the requirements of teachers and students, in XX in first place. Five, information technology application capability as a means to boost teaching of teachers to nformation, Education Bureau of XX title and modern educational technology teacher assessment levels linked to the examination; launched a provincial model school of modern election, advanced unit in education a year (individual) award. o expedite education informatization work, the city established the school running level of supervision and assessment system. Information education in school performance evaluation, education assessment information work more than to cut weight 10. Practice is a regular room supervision, education information steering, steering, steering with the end, principals of education information into performance assessment and school level monitoring and evaluation, to develop a scientific, operational education information steering assessment methods, tracking management of education information and applications. By March 2016, 100 of the teachers, I participated in a national educational technology training for primary and secondary school teachers, the teachers have made to cut 80 primary and middle school teachers ' educational technology proficiency test certificate. At present, all schools have access to broadband networks. Training classification training of teachers, school teachers, academic leaders, information technology, teacher training and network management personnel from the County, within the school back to school training once training is complete. Through this mode of classification training, information technology application capability training of teachers in our city reached 100. XX series of effective information

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