利用逻辑分析仪分析微机的时序关系

本文的目的,在于通过应用IIP1630A逻辑分析仪,对微机的典型时序进行检测和观察,对它的时序关系进行分析,为微机的时序分析提供一种可靠而有效的方法.     

认知无线电系统中利用模糊逻辑的频谱分配

为了较全面地分析频谱分配问题,突出系统的效益和公平性能,提出了一种利用模糊 逻辑的认知无线电频谱分配方案。首先给出模糊逻辑系统（FLS）的概念,然后利用FLS综合 分析感知空闲频谱和次用户的特性,最后结合系统吞吐量最大、公平性和随机分配3种准则 将空闲频谱分配给次用户使用。仿真结果证实了方案的可行性。     

频谱分析仪在广播电视系统中的应用

介绍安泰信系列频谱分析仪以及应用情况。     

网络监控系统逻辑层设计机制分析

本网络监控逻辑层构件的接口按功能可分为页面图形参数设置接口和数据库接口。按实现的方式,可分为函数调用的方式和jsp页面方式。其中函数调用方式是面向于程序员的,并且在该方式下只能用于设定图形参数;而jsp页面方式是面向于程序员和用户的,可用于设定页面图形参数和数据库参数。     

效果逻辑理论分析:效果逻辑与因果逻辑、创业拼凑比较分析

效果逻辑理论是当前创业决策研究的核心内容,强调充分利用现有资源来应对不确定性环境及突发状况。效果逻辑自提出以来已发展出一套完整的理论,理论内涵不断明晰,测量量表研究取得长足发展。但现有研究对效果逻辑与相关理论的差异分析不够深入。本研究在介绍效果逻辑的产生背景与核心内容基础上,梳理效果逻辑已有研究成果,对效果逻辑与因果逻辑、创业拼凑理论进行比较分析。     

利用矢量网络分析仪测量时延特性的方法

解释了无线射频系统时延指标测量的意义及重要性,介绍了使用矢量网络分析仪进行时延指标测量的基本原理,归纳了网络分析仪进行线性器件、变频器件时延测量的测量方法,重点分析了变频器件时延测量的三种方法的原理、步骤和准确度.     

微波网络分析仪的系统误差

本文简要介绍微波网络表征和微波网络分析仪。详细讨论微波网络分析仪的系统误差,建立系统误差模型,这是在微波网络分析仪自动化中设计“精度增强程序”的理论基础。     

全自动工业分析仪测量挥发分的技术分析

详细介绍了全自动工业分析仪测量挥发分的主要组成结构、工作原理、技术参数、以及测试过程中相关参数变化,并与国家标准gb/t212中马弗炉的炉体结构、技术参数以及行业标准中数据的对比,说明了全自动工业分析仪测量挥发分是可靠、可行的.     

管理思想演进路径及其逻辑分析

本文在管理思想的演进路径分析的基础上,从文化的逻辑和人性的逻辑这两个方面来说明管理思想演进的逻辑,进而探究推动管理思想演进的动因。     

Using stated response choice data to enrich revealed preference discrete choice models

There is growing interest in exploring the view that both revealed preference (RP) and stated preference (SP) data have useful information and that their integration will enrich the overall explanatory power of RP choice models. These two types of data have been independently used in the estimation of a wide variety of discrete choice applications in marketing. In order to combine the two data sources, each with independent choice outcomes, allowance must be made for their different scaling properties. The approach uses a full information maximum likelihood estimation procedure of the hierarchical logit form to obtain suitable scaling parameters to make one or more data sets comparable. We illustrate the advantages of the dual data strategy by comparing the results with those obtained from models estimated independently with RP and SP data. Data collected as part of a study of high speed rail is used to estimate a set of illustrative mode choice models.     

利用EXIT图分析信源码率对双LDPC码系统的影响

双LDPC（DLDPC）码系统是一种高性能的信源信道联合编码系统,但是其性能在很大程度上受到信源码率的影响。为了从理论上分析信源码率对DLDPC码系统的影响,推导了外信息转移（EXIT）函数,并利用EXIT图分析了信源码率对DLDPC码系统的影响,理论分析结果与实际仿真结果一致。进而利用EXIT图估算出DLDPC码系统在不同信源熵情况下的信源码率门限值,该门限值可以用来指导实际系统中信源码率的选取。所提出的分析方法比传统的蒙特卡罗仿真法更加简捷、直观。     

Using simultaneous latent structure models to analyze group differences: Exploratory analysis of buying style items

This article shows how methods for simultaneous latent structure analysis can be used to test for intergroup differences in unobservable characteristics. In many respects these techniques are similar to those for simultaneous factor analysis. To show how these methods can be used, we analyze data obtained from the 1979 Study of Media and Markets collected by the Simmons Market Research Bureau. Five dichotomized items pertaining to buying style attitudes were chosen as “indicators” of a latent variable (or variables): brand loyalty, willingness to experiment, degree of conformity to buying style of others, persuadibility, and style consciousness. The sample was composed of full-time employed, married, white females in the middle social class categories recognized on the survey. Two groups were compared in terms of latent structure model parameters. The first group consisted of those who work “at a career” and the second consisted of those whose work was “just a job.” Using the methods advocated here there is no significant difference between these two groups once the “brand loyalty” item is excluded. The model-search procedure takes account of within-group contributions to lack of fit. Generalizations of this procedure may be useful in exploratory analysis using the simultaneous latent structure model.     

Using survey data to assess the distributional effects of trade policy

This paper develops a method to estimate the general equilibrium distributional effects of trade policies using household survey data. Trade reforms cause the domestic prices of traded goods to change and this, in turn, triggers a series of general equilibrium effects. Among these, I estimate the impacts of trade on the prices of traded goods, non-traded goods, and wages. By combining the estimates of the consumption impacts and the labor income impacts, I am able to assess how trade policies affect households across the entire range of the income distribution. An application of the procedure to the study of the distributional effects of Mercosur shows that the average poor and middle-income family in Argentina has benefited from the trade agreement.     

Using word of mouth data from social media to identify asymmetric competition in food retailing

Competition between food retailers is often assumed to be asymmetrical, whereby one retailer may compete with another retailer but not vice versa. Little is known about how (a)symmetric competition among retailers currently is. One way to investigate this is to use word of mouth data. A mixed methods analysis of customer comments on social media confirms the existence of asymmetric competition among German food retailers, mainly between supermarkets and discounters. Overall, consumers compare competitors frequently on the basis of their assortments, the price-performance ratio as well as quality and freshness. The results have implications for competition policy and strategic management.     

Using macro cross‐border trade data to better understand micro‐level country of origin effects

The article adapts an estimation methodology from the border effects literature to reveal consumer ethnocentrism versus cosmopolitanism in each country, and animosity versus nostalgia between country pairs. The measurements rely on actual macro cross‐border trade data rather than individual purchase intentions typically used in the international marketing literature. The results from early 2010s suggest that purchasing intentions against imports found in this literature do not necessarily translate into actual consumption behavior in international trade. It is quite possible that the consumers are unable to assess country of origin of production despite growing ethnocentrism, and base their actual purchases on perceived origin of product brands. Specifically, it is found that most countries are cosmopolitan rather than ethnocentric, particularly developed countries, favoring any foreign product over domestic products. Most countries also have nostalgic purchasing behavior from specific trade partners with historical linkages. Outside the specific traditional animosities between a country pair, a developed country is relatively less open to imports from another developed trade partner, while an emerging country welcomes it more especially from another emerging trade partner.