电话远程控制系统的实现

文章阐述了一种电话远程控制系统,并对其系统结构、各部分功能的实现和系统软件程序流程及主要软件功能进行了讨论,其摘机电路、挂机电路、密码电路简单实用;其受控对象如窗户状态、电器状态的反馈与控制电路稳定可靠。     

基于复合战略控制系统的战略执行力研究

从控制理论的角度对战略控制系统与战略执行力的关系、传统战略控制系统进行了分析,在此基础上构建了基于复合战略控制系统的战略执行流程,为提高战略执行力提供了一种新思路。     

对建立高职院校实践教学评价反馈机制的思考——以旅游管理专业为例

该文以旅游管理专业为例,介绍该专业的实践教学如何结合高职教育的人才培养特征、旅游行业的特点和旅游企业的运行状况,来规范实践教学管理的组织机构、实习计划的制定和实施、实习效果考核指标体系,特别是对尚属薄弱环节的实践教学效果的评价反馈方面,提出了一些见解。     

矿井通风三维可视化系统及优化

系统建立了三维仿真框架,建立了三维空间属性模型和非空间属性模型,分别对空间数据和非空间数据进行储存和管理。并建立了Hardy-Cross迭代模型和离散反馈型神经网络模型优化通风网络模型。并以C#语言来实现系统的功能。     

Speculative dynamics and price behavior in the Shanghai Stock Exchange

This article examines the extent to which the trading behavior of heterogeneous investors manifests in stock price changes of asset portfolios which constitute the Shanghai Stock Exchange. There are three major findings that materialize. Firstly, reliable statistical evidence of a negative relation between the conditional first and second moments of the return distributions of stock prices lends support to the volatility feedback effect. Secondly, ‘feedback’, or momentum-type investors, are not present in this market as is often detected from the daily price changes of other industrialized markets. Finally, trade volume as a proxy for ‘information-driven’ trading suggests that such investors play a statistically significant role in stock price movements. Parameter estimates from this latter group of investors imply that a rise in stock prices from a high volume trading day is more likely than a rise resulting from a low volume trading day.     

高职院校加强绩效管理的探讨

目前高职院校绩效管理存在目的和定位不准确,绩效管理基础工作不完善,绩效管理模式多为刚性模式,绩效反馈沟通缺失等问题。加强高职院校的绩效管理,应明确绩效管理的最终目的,做好绩效管理的准备工作,制定科学的绩效计划,进行持续不断的绩效辅导与沟通,开展客观公正的绩效评估,实施及时的绩效反馈沟通。     

改进的动态反馈负载均衡算法

本文提出了一种改进的动态反馈负载均衡算法,在负载均衡过程中既考虑后台服务器的当前负载,又考虑后台服务器的处理能力,根据每台服务器当前负载比例值的大小合理分配用户请求,进而调整服务器间处理请求的比例,避免服务器超载时依然收到大量的请求,使平均应答时延和吞吐量等获得较好的性能,集群的整体性能得到提高。     

MIMO系统中基于卡尔曼滤波的信道预测算法研究

多输入多输出(MIMO)技术是LTE系统中的关键技术之一,能够在不增加带宽的情况下成倍地提高了通信系统的容量和频谱利用率。本文提出了一种多用户MIMO下行链路中基于卡尔曼滤波的信道预测算法。在实际传输时,发射端根据接收端反馈回来的信道信息预测出下一时刻的下行信道信息,仿真结果验证了所提方法的有效性。     

The impact of earnings expectations on corporate downsizing

Research Summary: We propose that due to financial market pressures, managers are forward‐looking in their search and decision processes and focus on meeting performance targets set by the financial community. Using panel data on S&P 100 companies, we find that pressure felt by management to meet the analyst consensus earnings estimate influences the extent of corporate downsizing. Moreover, our results show that high levels of institutional investor stock ownership and CEO power attenuate managers’ sensitivity to financial market pressures, while high levels of analyst coverage increase their sensitivity. Managerial Summary: In this study we examine how financial market pressures influence managers’ downsizing decisions. We argue that investment analysts’ earnings estimates represent important performance targets to which managers aspire. If firms fail to meet analysts’ expectations, the stock price will suffer. This study shows that managers utilize corporate downsizing to address the potential shortfall between a firm's future performance and the analyst consensus earnings estimate. In addition, we find that managers’ concerns over meeting analysts’ earnings estimates are influenced by various contextual factors such as institutional investor stock ownership, CEO power, and high levels of analyst coverage.     

生态旅游地发展的模型研究

这篇文章运用生态-经济的理论,利用系统动力学的方法,将生态旅游的一些零散论述加以系统化,并通过建立生态旅游的结构模型,探讨生态旅游发展中生态、社会和经济系统之间的结构和行为关系.生态旅游发展的模型涉及了物质资源、文化资源、基础设施、工作市场、游客和财务促销等6个部分,模型的模拟功能有助于理解旅游发展的复杂结构.模型得到验证后,可以成为评价旅游发展政策的工具.