天一集成并行计算SOC平台

北京天一集成科技有限公司成功建造了一个完全自主知识产权的并行计算SOC平台。该平台特别适用于建造海量数据的实时处理系统，在快速富利叶变换(FFT)，高阶数字滤波．数字信号压缩解压缩、数据编解码、公钥密码算法RSA／ECC椭圆曲线等应用中。     

天一集成并行计算SOC平台

<正>北京天一集成科技有限公司成功建造了一个完全自主知识产权的并行计算SOC平台。该平台特别适用于建造海量数据的实时处理系统,在快速富利叶变换(FFT)、高阶数字滤波、数字信号压缩解压缩、数据编解码、公钥密码算法RSA/ECC椭圆曲线等应用中。     

椭圆曲线密码体制在电子商务中的应用

首先介绍了信息安全是制约电子商务发展的瓶颈,然后比较了多种公钥密码技术,综合比较它们的优缺点,得出可以将椭圆曲线密码体制用到电子商务中,在此基础上,解释了SET协议的流程,并叙述了如何在SET协议中嵌入椭圆曲线密码技术,最后得出了椭圆曲线密码体制必定会在电子商务中得到广泛的应用。     

广数系统数控车床A类宏程序的运用分析

在数控车床应用加工中,我们会遇到各种各样的曲线加工特征,而在现今的数控机床系统中,通常采用直线和圆弧插补,椭圆、抛物线等曲线插补没有直接指令应用。为了解决这种曲线加工问题,如果使用宏程序就非常简单了。我院大量使用济南第一机床厂生产的广州数控系统（GSK980TD系统）,本文介绍了在该系统机床中如何用宏程序进行椭圆零件程序编制加工。     

基于GSK980TD广州数控系统宏程序的研究与实现

本文以加工椭圆为例,介绍了应用GSK980TD数控系统的宏程序功能来完成椭圆车削加工的编程方法和技巧,该方法同样适用于抛物线等非圆曲线的编程加工。     

椭圆的定义应用探讨

椭圆作为圆锥曲线的第一种曲线,学好它的定义对椭圆性质以及双曲线和抛物线达到学习有极大的帮助,从几个例题来强调巩固椭圆的定义,使学生能牢记到两个定点(焦点)的距离和为定值(2a)的轨迹为椭圆,并能在今后的学习、解题中加以应用.     

基于宏程序的椭圆轮廓的数控车加工

宏程序在数控编程中有着广泛的应用。文章结合两种椭圆曲线宏程序编程实例,介绍了宏程序在非圆曲线中的编制方法和技巧,分析表明:宏程序数控编程具有编程快捷和程序短小精悍的显著特点,尤其适用于一些含非圆曲线零件的数控编程加工。     

基于FANUC0TD数控车床的椭圆A类宏程序编制方法

椭圆是经典的非圆曲线,而椭圆加工是数控车床加工中的难点。文章以FANUC0TD数控车床为平台,介绍了椭圆的宏程序编制原理,通过实例研究了数控车床A类宏程序编程的关键技术。     

SIEMENS数控系统参数编程应用

以椭圆加工，等速螺线凸轮轮廓曲线的加工，菱形均布的网格孔系的加工为例，阐述了R参数编程在数控加工中的应用。     

基于SSL协议的移动设备节能方案

本文介绍了SSL协议的主要子协议Handshake的工作过程,并对公钥加密算法RSA和ECC耗能进行了比较,提出了一种在SSL协议中同时应用RSA和ECC的算法,使移动设备即节能又能安全通信的方案。     

新型材料ECC在结构工程中的应用

工程用水泥基复合材料（engineered cementitious composite，简称ECC）在拉伸荷载下呈现出多微缝开裂和应变一硬化性能。当前该材料主要应用于桥面板、建筑物减震、挡土墙和灌溉渠道等工程中。在这些应用中,由于ECC承受拉伸荷载的能力大大提高；在抗渗性方面表现出很大的优势。文章将对翦前ECC在结构工程中的应用进行简要介绍。     

大掺量磨细粉煤灰混凝土单轴受压应力应变全曲线的试验研究

普通混凝土和高强混凝土的应力应变曲线,国内外已开展了大量的研究。但有关掺磨细粉煤灰混凝土应力应变全曲线资料却不多见,本文配合粉煤灰混凝土的推广应用,对其单轴受压性能及应力应变关系进行试验研究,同时给出了适用于不同强度等级掺磨细粉煤灰混凝土受压应力应变全曲线的统一数学表达式,与试验曲线吻合较好,可供进一步研究参考。     

An Economic Model of Socio-Political Bargaining

A bstract Non-economic social phenomena have been, and are being, explored with analytic methods drawn from economic analysis. Two such analytic concepts, indifference curves and offer curves, have proved useful in such efforts. The concepts are integrated here within a specific formal model which is held to be useful in exploring the central social and political process of bargaining. The impact of three variables–preference, impatience (or time), and reciprocal demand intensity–on political bargaining is shown. The framework provides a scheme around which empirical research can be organized to assist in the integration of economic with other social science theory.     

Testing stationarity of functional time series

Economic and financial data often take the form of a collection of curves observed consecutively over time. Examples include, intraday price curves, yield and term structure curves, and intraday volatility curves. Such curves can be viewed as a time series of functions. A fundamental issue that must be addressed, before an attempt is made to statistically model such data, is whether these curves, perhaps suitably transformed, form a stationary functional time series. This paper formalizes the assumption of stationarity in the context of functional time series and proposes several procedures to test the null hypothesis of stationarity. The tests are nontrivial extensions of the broadly used tests in the KPSS family. The properties of the tests under several alternatives, including change-point and I(1)$I\left(1\right)$, are studied, and new insights, present only in the functional setting are uncovered. The theory is illustrated by a small simulation study and an application to intraday price curves.     

RESEARCH ON STRATEGIC GROUPS: PROGRESS AND PROGNOSIS[1]

The progress made in strategic groups research is evaluated by identifying its relevance and importance to the field of strategic management. A classificatory scheme is developed using two dimensions: the operationalization of strategy; and the approach to group development. A review framework incorporating key analytical dimensions is drawn up to (a) develop a taxonomy for classifying the available empirical research on strategic groups; (b) assess the research and identify important summary patterns and (c) develop specific research directions from a stategic management perspective.     

The institutional approach to entrepreneurship research. Introduction

The main argument of the presentation of this special issue is that entrepreneurship research based on institutional theory is a promising field of research. After a brief explanation of the nature, scope and philosophical foundation of institutional theory and the distinction between old and new institutionalism, an attempt is made to justify why entrepreneurship research using the institutional approach is promising. A reference to some previous research in this field illustrates not only its potential but also the long tradition in institutional economics. A brief reference to the content of each of the articles included in this special issue closes this presentation.     

Kernel-based calibration diagnostics for recession and inflation probability forecasts

A probabilistic forecast is the estimated probability with which a future event will occur. One interesting feature of such forecasts is their calibration, or the match between the predicted probabilities and the actual outcome probabilities. Calibration has been evaluated in the past by grouping probability forecasts into discrete categories. We show here that we can do this without discrete groupings; the kernel estimators that we use produce efficiency gains and smooth estimated curves relating the predicted and actual probabilities. We use such estimates to evaluate the empirical evidence on the calibration error in a number of economic applications, including the prediction of recessions and inflation, using both forecasts made and stored in real time and pseudo-forecasts made using the data vintage available at the forecast date. The outcomes are evaluated using both first-release outcome measures and subsequent revised data. We find substantial evidence of incorrect calibration in professional forecasts of recessions and inflation from the SPF, as well as in real-time inflation forecasts from a variety of output gap models.     

全面小康社会指标评价体系

全面小康是涉及个人、企业和社会三维一体的小康。社会的小康由企业和个人的小康组成,而企业又是个人小康的主要载体。因此,研究个人、企业和社会各自的全面小康标准对于实现本世纪头20年全面建设小康社会的目标十分必要。衡量小康社会发展程度需要配套标准,构筑这些标准,建立相对健全的评价指标体系,是实施全面小康战略的迫切需要。     

基于知识竞争力的个人知识管理能力测评

文章以组织中个体的知识管理能力为研究对象,提出基于知识竞争力的个人知识管理能力水坝模型;依据360度绩效考核和Delphi法的思想对个体的隐性知识管理能力进行模糊测评;设计问卷对个体的显性知识管理能力进行测评,并将这两部分赋权综合,使最终结果准确反映个人的综合知识管理能力。