Noise variance measurement with presence of strong sine burst interference

A novel method of noise variance measurement in the presence of strong sine burst interference with unknown parameters is presented. The measurement system is based on the Adaptive Sine Pulse Shortener (ASPS) which shorts each sine pulse from which the interfering burst is composed. After this a conventional noise variance measurement method is applied. A measurement accuracy is satisfactory when the interfering signal is strong and the number of periods of interfering sine-wave in each sine pulse is great. While a practical implementation of the proposed procedure is not simple in hardware, the microprocessor implementation is quite realizable.     

钢铁企业横向并购中知识转移影响因素的路径分析

本文利用在西南地区钢铁企业横向并购过程中采集的数据,对企业并购过程中影响知识转移的相关因素进行了探索性路径分析。研究结果表明:在钢铁行业中,收购企业与被收购企业有关知识的先天条件对于知识转移的层次、实施过程以及转移效果均没有显著影响,而两者却对于并购动机产生正面影响,且呈显互补关系。收购企业有关知识的先天条件对于知识转移投入没有显著影响。并购动机正面影响知识转移层次与投入,知识转移层次只正面影响实施过程,而知识转移投入正面作用于实施过程与转移效果,知识转移实施过程对转移效果有正面作用。最后本文分析了上述结论的内在成因,并提出了相应的对策建议。     

Block implementation of two-dimensional digital filters

A novel principle known as block transformation is developed for the block implementation of two-dimensional (2-D) digital filters. It employs the one-dimensional (1-D) block implementation concept forwarded by Burrus (7) as a basic tool. Using this block transformation principle three distinct forms of 2-D block equations are derived. The generalized nature of the approach presented here facilitates the straightforward extension of this technique to higher dimensional digital filters.     

舞台视效联动控制系统软件设计与实现

解析一款舞台视效设备联动控制系统,可实现对舞台灯光、LED屏、投影等视效设备的联动控制,根据应用特点设计软件结构,并在实现中加以优化。     

Implementation of approach to compute the Lyapunov characteristic exponents for continuous dynamical systems to higher dimensions

A general method for accurately computing the Lyapunov characteristic exponents (LCEs) of continuous dynamical systems has been developed in [10]. In this paper, this method is extended to implementations on systems of arbitrary dimensions. An accurate implementation of the extension of the method to compute LCEs that uses available numerical techniques is presented for systems of arbitrary dimensions. Previously in [10], the original approach had only been implemented for general systems of up to dimension three. Closed form expressions for the exponential of skew symmetric matrices of order 4 and 5 will be presented. These formulas are used to obtain an accurate and efficient implementation of the method for dynamical systems of dimensions 4 and 5. Numerical examples illustrating the accuracy of the implementations are presented.     

基于JavaScript的浏览器端调用Web服务研究与实现

本文根据WebOffice系统中浏览器－服务器端通信需求，提出了一种调用web服务的浏览器端代理方法。比较了此方法和传统的服务器端方法的优点和缺点，分析了此方法的适用场合。最后给出了实现的要点：WSDL的加载和解析、对象类型的序列化和反序列化、SOAP协议的封包和绑定。     

基于ISM的名牌战略影响因素分析

在名牌战略的实施过程中,针对如何理清不同影响因素之间的相互关系,采用系统工程中的解释结构模型(ISM),分析了名牌战略影响的因素及其相互间的层次关系,从而找到影响名牌战略的表层原因、中层原因及深层原因,并对此原因进行分析并得出结论,为当前名牌战略的顺利实施提供了理论依据.     

幼儿园科学领域课程实施现状与反思--以重庆市主城区幼儿园为例

为了解《纲要》在幼儿园实施的状况,以便进一步提高幼儿园课程实施的水平。本文以重庆市主城区幼儿园为例,采用多种研究方法,研究了幼儿园科学领域课程实施的现状,并提出了具体的建议。     

大学向企业转让技术的道德风险博弈分析

运用博弈理论,建立针对该道德风险的博弈模型,并通过对博弈模型的纯策略均衡和混合策略均衡分析,从理论上推导出防范道德风险的思路,并结合实际对实施技术转让的大学提出可行性建议。     

创先争优与高校服务型机关建设研究

深入开展创先争优活动,是新形势下抓好党的基层组织先进性建设的重要载体和强有力抓手,是在全党中巩固和拓展深入学习实践科学发展观活动成果的重要表现形式。本文以创先争优活动为背景,论述了此次活动与构建高校服务型机关的关系,提出以创先争优为契机,打造高校服务型机关的思路和对策。     

制造企业产品报价管理系统的研究

论述了报价的重要性以及当前制造业企业报价存在的缺陷,同时针对制造业企业生产的特点,提出了完整的报价流程和实现方法,重点论述了基于原有报价资料生成报价以及新产品报价的方法,并阐述了报价系统的实现过程.     

战略执行速度与绩效——环境动态性和组织资源的调节作用

构建战略执行速度与绩效的关系模型,基于110家企业的调查数据实证分析战略执行速度对组织绩效的作用机理。研究结果表明:战略执行速度对组织绩效的影响方式取决于环境动态性和组织可用资源数量。环境变化快、可用资源充足的企业的战略执行速度对绩效有正向影响;环境变化慢、可用资源不足的企业的战略执行速度对绩效有负向影响。     

在CMMI实施中的试点研究

初步介绍了CMMI实施中试点的含义以及试点阶段在实施中的作用,并总结了企业在试点实施中遇到的主要困难并分析原因,为企业在实施中推荐了具体方法。鉴于企业实施的成熟度不同,进行试点实施的侧重点分析,以协助企业根据自己实施的成熟度来分析试点的要求。     

英美两国儿童分级阅读对我国的启示

儿童阅读是儿童教育的重要内容,在分析英、美两国分级阅读推广经验的基础上,结合我国具体国情和现状,提出了图书馆进行婴幼儿分级阅读的实施方案,方案在实施主体、实施对象、实施模式、具体措施以及实施的目标效果5个方面进行了具体论述。     

省级五年发展规划实施与绩效:"十二五"为例

剖析五年规划是破解中国经济高速发展之谜的入口。而当前学术界对五年规划绩效的实证研究较少，从省域视角切入的更少。本文从省级五年规划实施对规划绩效影响的角度，构建“有中介的调节变量”与“有调节的中介变量”混合模型，以重庆市“十二五”规划为例，通过调研数据加以验证。研究结果表明：规划执行主体对规划绩效具有显著的正向影响；规划实施资源对规划执行主体-规划绩效的中介效应显著，而规划组织特征有中介的调节效应和规划科学水平有调节的中介效应均不显著。据此提出政策建议。     

提高公共政策执行力的路径选择

公共政策执行是关系到政策成败的关键,改进政策执行中存在的问题对于政策的有效落实有着重要的作用,针对我国公共政策执行中存在的问题提出了具体的解决措施,对提高公共政策执行力,保证政策目标的实现具有重要的意义。     

关于促进自主创新政策落实的若干思考

本文从全面促进自主创新政策落实这一目标出发,探讨了自主创新政策落实的基本情况,分析了制约自主创新政策落实的主要因素.在此基础上,本文提出要从建设服务型政府的要求出发提高政策落实的质量和效率,要把政策的制定和实施作为一个有机结合的整体,要在政策的实施中及时调整和完善政策,要做好政策实施重要一环的政策评估,要重视和建立政策实施的成本补偿机制等建议,力图从理论和实践的角度努力促进自主创新政策的落实.     

A longitudinal study of the actual value of big data and analytics: The role of industry environment

Despite the popularity of big data and analytics (BDA) in industry, research regarding the economic value of BDA is still at an early stage. Little attention has been paid to quantifying the longitudinal impact of organizational BDA implementation on firm performance. Grounded in organizational learning theory, this study empirically demonstrates the impact of BDA implementation on organizational performance and how industry environment characteristics moderate the BDA-performance relationships. Using secondary data regarding BDA implementation from 2010 to February 2020, we find that BDA implementation has a significant impact on two types of business value creation: operational efficiency and business growth. Furthermore, the impact of BDA on operational efficiency is amplified in less dynamic and complex environments, while the BDA-business growth relationship is more pronounced in more dynamic, complex, and munificent environments. Collectively, this study provides a theory-centric understanding of BDA’s economic benefits. The findings offer insights to firms about what actual benefits BDA implementation may generate and how firms may align the use of BDA with the industry environments they are operating in.     

一种分布式动态知识基础设施的体系结构

分析了知识管理(KM)研究的现状和存在的问题,提出了一种基于应用到应用(A2A)模式、面向协同电子商务的知识基础设施(KI)的系统框架和体系结构模型,指出了该参考研究框架的关键问题和相关实现技术。     

Design and implementation of a rectangular frequency invariant beamformer with a full azimuth angle coverage

A novel design of the frequency invariant beamformer based on a rectangular array is proposed with two unique features: there are no taped delay-lines (TDLs) or any other temporal processing involved and the resultant beamformer has a full 360° azimuth angle coverage. This leads to a wideband beamformer with complex-valued coefficients and its implementation is not as straightforward as the traditional ones. Depending on whether the input signal is complex-valued or real-valued, special arrangements and structures are required for its effective implementation. Several design examples are provided with a satisfactory frequency invariant property. Two sets of implementation results are given based on both simulations and data collected by a planar microphone array system.