duration of study

Duration中译为久期，或持续期，是一个反应利率敏感性固定收益证券关于利率这一风险因子的一阶变动速率。从这个意义上讲，它一定与利率敏感性固定收益证券价格函数的一阶导数相联系。

Handbook中提到了三种Duration，包括：Dollar duration、Adjusted duration以及Macaulay duration，我们可以将这三种久期以一阶导数的形式表示出来（以零息债券为例）： 1. Adjusted duration（D*）

'D*??f(y)/p?T/(1?y)

2. Dollar duration（DD）

DD?D*?P??f(y)?T?P/(1?y)

3. Macaulay duration（D）

'D?D*?(1?y)?T

在学习的过程中务必注意区分三种久期与一阶导数的关系，以及它们之间的关系。

Convexity中译为凸性，实际上就是利率敏感性固定收益证券价格函数关于利率的二阶导数。

C?dPdy22?(T?1)T(1?y)2?P

Handbook要求大家会根据条件计算有效久期（Effective duration）以及有效凸性（Effective Convexity）：

DE?P??P?2P0?y

Research Proposal/Study Plan研究计划 / 学习计划

（Please Write in English） (请用英文回答)

1) Research Area of Interest and Major：(please explain what your major is and what you plan to study) 你的专业和研究方向: (请说明你的专业和学习计划)

2) Advisor or Potential Advisor: (this means your research advisor not academic advisor) 导师或有意向的导师：（是你的研究导师而不是学术导师）

3) Is your program coursework only? If not, please tell us the name of your research project and give a basic description of your research. 你的学习项目只是授课形式？如果不是，请提供你的专项课题的具体名称和内容

4) Research Funding: (Where is

Case Study: Yao Jiaxin's murdering case

Huang Yi 1051240003

【Details of Case】

Yao, 21, a junior student at the Xi'an Conservatory of Music, was driving a Chevrolet Cruze when he ran into Zhang Miao while she was riding a bicycle home at 10:30 pm on Oct 20, 2010. Fearing that Zhang would remember his license plate number and report him to the police, Yao stabbed her eight times to death with a knife. After the stabbing, Yao drove away from the scene and, in his hurry

Linux：

1. Linux的版本分为两类：内核版本和发行版本。

内核是系统的心脏，是运行程序和管理像磁盘和打印机等硬件设备的核心程序，Linux内核的版本号是有一定规则的，即“主版本.次版本号.修正号”；

发行版是由发行商搜索一系列的应用程序打包发售时的编号。一个完整的Linux由“内核程序＋系统程序＋应用程序”组成。

uname –a 内核：主.次.修正号；lsb_release –a 发行版本；

2. Linux最主要的应用领域是基础服务器应用，如DNS服务器、DHCP服务器、Web服务器、FTP服务器、防火墙等。

具体而言，目前Linux的主要应用领域包括以下几个方面：

1.Linux服务器 是目前Linux应用最多的一个领域，可以提供Web、FTP、Gopher、SMTP/POP3、Proxy/Cache、DNS等服务器，支持服务器集群，支持虚拟主机、虚拟服务、VPN等；

2.嵌入式Linux系统 嵌入式Linux是将流行的Linux操作系统进行剪裁修改，能够在嵌入式计算机系统上运行的一种操作系统。Linux嵌入式系统能够支持多种CPU和硬件平台，性能稳定，剪裁性好，开发和使用容易。其中包括Embedix、uCLinux、muL

What is OpenSees?

(Open System for Earthquake Engineering Simulation)

An object-oriented software framework for simulation applications inearthquake engineering using finite element methods. OpenSees is not acode.

(面向对象的软件框架，采用有限元方法对地震工程进行仿真） Opensee 的特点：

+ The library of materials, elements and analysis commands makesOPENSEES a powerful tool for numerical simulation of nonlinearstructural and geotechnical systems （可用于非线性结构、岩土分析的丰富的材料，单元库及分析手段）

+ The OpenSees library of components is ever-growing and at the leading edge of

Why study in abroad ?

We have many Stress in our life,including work,house,and so on.Study abord is a good choice.

Study abroad is the optimal way to learn a language. There is no better and more effective way to learn a language than to be immersed in a culture that speaks the language you are learning. You're surrounded by the language on a daily basis and are seeing and hearing it in the proper cultural context. Language learning happens most quickly under these circumstances.

Study abroad allows you get to know an

In this paper, we give a formal model for real-time database systems using Duration Calculus. Our model supports the formal reasoning about the operations in the systems. As a case study for our technique, we give a formal specification and verification of

ModellingReal-timeDatabaseSystemsinDurationCalculus

DangVanHungandHoVanHuong

UnitedNationsUniversity

InternationalInstituteforSoftwareTechnology

P.O.Box3058,Macao

ABSTRACT

Inthispaper,wegiveaformalmodelforreal-timedatabasesystemsusingDurationCalculus.Ourmodelsupportstheformalrea

1231231w

Case Study 1

Samir is walking down Princes Street one Saturday morning when he notices a very eye-catching display of sets of golf clubs in the window of Fairways, a well-known Edinburgh sports retailer. As Samir is a very keen golfer, he stops to pay more attention to the window display. Samir immediately notices that a set of golf clubs (by Japanese master craftsman Matsumoto) is priced at an incredible £150. He is astonished at the low price for the golf clubs and he immediately rushes into the shop where he

Study Abroad

Nowadays study abroad has come into a fashion. Each year thousands of students fly

to foreign countries to study, especially to the United States, Canada, Australia, Japan and European countries.

Attending schools abroad has a lot of advantages. Firstly, many foreign universities can

offer better study conditions and have more advanced teaching equipments, so we can learn much more advanced knowledge of science and technology there. Secondly, students who study abroad may get in touch with people from various c

Case Study 1

Praising Japanese in Public Workplaces （在工作场所当众表扬日本人）

琼斯先生（美国经理） 当众表扬苏琦木拓（日本员工）工作做得很棒，本以为苏琦木拓会高兴的接受，却不料…..

Case description:

American: Mr. Sugimoto, I have noticed that you are doing an excellent job on the

assembly line. I hope that the other workers notice how it should be done.

Japanese: (He is uneasy). Praise is not necessary. I am only doing my job. (He

hopes other Japanese workers do not hear.)

American: You are the finest, most excellent, dedicated worker we have ever had

at the Jones Corporat