查询词典 choice function

Under the precondition of assuming the stock price did not following the famous geometric Brown law, and agents have no exact knowledge of the probability distribution for the uncertain economic shock and return rate perturbation, chapter five presents the uncertain dynamic models of portfolio choice and option hedging respectively. In this chapter, we define the H〓 norm of transfer function from disturbance input to control output as financial risk measurement, and investigate the risk-attenuating robust H〓 portfolio investment and option hedging strategies.

第五章在金融证券价格并非服从几何布朗运动，收益率波动和外部噪声扰动的统计特性未知的情况下，分别建立了金融经济领域证券组合投资及期权套期保值问题的动态模型，引入从扰动输入到评价输出传递函数的H〓范数作为金融风险的度量指标，运用鲁棒H〓控制技术，研究了抑制金融风险的动态证券投资和期权套期保值决策问题。

It is impossible to know beforehand, however, whether the worker in question will apply, for example, Lines Of Code or Function Points, to name just two size metrics. The choice of metric may depend on the type of application developed or the tool used in the development effort.

但是，事先不可能知道应用过程中是否会有问题，以代码行和功能点这两种规模度量方法为例，方法的选择依赖于应用程序的类型或者开发过程中使用的工具。

Keyboard function set through waveform type,frequency,amplitude,duty cycle,and other parameters of a signal to the microprocessor 89C51 control,MAX038 generated by the various signals,In this process,four-channel signal through D/A converters have simulated voltage and current,It transported up through the analog signal amplification,it enters the frequency MAX038 coarse-IIN,fine-tuning FADJ end,the duty cycle control-DADJ. In its COSC port received a three relays and oscillation frequency capacitance as a choice.

通过键盘设定函数波形种类、频率、幅度、占空比等参数的一个信号进入单片机89C51控制，由MAX038产生各种波形信号，在此过程中信号通过四通道D/A转换器产生模拟电压和电流，它再通过运放将模拟的信号放大，它进入MAX038的频率粗调端IIN、微调端FADJ、占空比控制端DADJ、在它的COSC端口接一个继电器和三个振荡电容作为频率选择。

Based on the "relevant principle", that is, choosing the language structure which is able to convey and strengthen the themes and aesthetic effects of works, the thesis, with the application of the theories and approaches of functional grammar and mainly from the perspectives of the ideational, the interpersonal and the textual function, makes a stylistic analysis on the autobiographical novel A Portrait of the Artist as a Young Man by James Joyce, the most influential Irish writer in the 20th century, illustrating how he conveys and strengthens the themes and aesthetic effects through his choice of language structure in the novel and exemplifying the merits of functional stylistics.

本文根据&相关性&原则，即选择能表达和深化作品的主题意义和美学效果的语言结构，尝试运用韩礼德等人的功能语法的理论和方法，从概念功能、人际功能和语篇功能三个方面分析二十世纪最有影响力的爱尔兰著名作家詹姆斯乔伊斯创作的有自传体特色的《青年艺术家的画像》，以阐明作家在《画像》中如何通过语言的选择，达到深化作品的主题意义和传达美学效果的目的，同时也例证了功能文体学的魅力和价值。

In game, each player"s utility function not only depends on his own chosen strategy but also depends on other players" chosen strategies. Therefore, game theory is about research on problem of individual choice in the condition of their exterior economy all existing.

在博弈中，每个参与人的效用函数不仅依赖于他自己选择的策略，而且依赖于其他参与人选择的策略，因此，博弈论研究的是在存在相互外部经济条件下的个人选择问题。

These problems are:the choice ofthe braking model curve for ATP system,analysis of information for control,the cab signalwith main function,reliability and extendability of hardware structure for ATP system,etc.

这个系统已在我国商阜试验区段运行，获得很好结果，是我国目前最新一代有代表性、先进性水平的ATP系统，它将在我国铁路干线上扩大应用。

S7-200 series PLC is microminiaturization PLC, it is suitable for allthe various trades and occupations, in each kind of situationautomatic detection, monitoring and so on. The S7-200 PLC formidablefunction causes its regardless of the single plane movement, or thecompany becomes the network all to be able to realize the complexcontrol function. S7-200PLC has 4 different basic models and 8 kind ofCPU, for user choice use.

S7-200系列PLC是超小型化的PLC，它适用于各行各业，各种场合中的自动检测、监控等。S7-200 PLC的强大功能使其无论单机运行，或连成网络都能实现复杂的控制功能。S7-200PLC有4个不同的基本型号与8种CPU，供用户选择使用。

We mainly employ the theory of new institutionaleconomics to testify the objectivity and protracted nature of the institutionalevolution and the significant meanings to China's economic reform. We alsoemploy Berkson-samuelson's social welfare function to testify the existence ofoptimal tax reform, and with improving Hettich-Winer's tax model, we putforward the route choice for the optimal tax reform.

主要用新制度经济学理论论证了制度变迁的客观性、长期性及对中国经济改革的重要意义，用柏格逊--萨缪尔森型社会福利函数论证了最优税制改革的存在性定理，借鉴和改善赫蒂奇和温纳的税制模型提出了最优税制改革的路径选择，同时介绍和评价了公平课税论、最适课税论和财政交换论，为深化我国税制改革奠定了理论基础。

A modified etching model is proposed, in which the diffusion coefficient is a function of the temperature and concentration and the etching rate constant is a function of temperature.

在前人腐蚀模型基础上考虑扩散系数是浓度和温度的函数，腐蚀速率常数是温度的函数，得到了修正模型。

The descriptive correlation research design was conducted from Mar. 2004 to Feb. 2005. Patients who had their first CABG surgery were selected by purposive sampling from the cardiovascular ward at a medical center in Taichung. Baseline data were measured by symptom distress scale, self-efficacy in physical function scale and physical function scale, collected one day before operation, ten days after operation, one month and three months after operation, 60 subjects were enrolled in the study.

本研究采描述性相关性之研究设计，从93年3月至94年2月，共计12个月，以立意选样的方式，於台中市某医学中心之心脏外科病房选取初次接受冠状动脉绕道术之病患，以病患基本属性量表、身体症状困扰量表、身体功能状态量表与身体功能之自我效能量表分别於术前1日、术后十日内、术后1个月及术后3个月收集资料，符合收案条件者共计95人，最后完成资料收集者有65人。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。