水引射制冷机及其机理初探

文章简要阐述了制冷基本原理及现有制冷技术存在的主要问题,通过对蒸喷制冷技术与溴化锂抽排气装置的分析,提出液态水引射制冷的可能性,并设计出水引射制冷机,阐述了其运行原理与结构。最后,利用流体力学与分子运动学原理,对引射制冷机理进行了初步探讨并提出新的解释。     

用电流传输器构成的二阶有源滤波器的研究

本文以电流传输器[CCⅡ^ ]为基本电路元件，用系统模型法对构成的二阶有源滤波器进行了理论分析，并推导了二阶通用滤波器的传递函数。     

On games with identical equilibrium payoffs

Summary. This paper compares the sets of Nash, coalition- proof Nash and strong Nash equilibrium payoffs of normal form games which are closely related. We propose sufficient conditions for equivalent or closely related games to have identical sets of equilibrium payoffs. Received: April 23, 1999; revised version: November 23, 1999     

毫米波器件的技术发展与应用

对毫米波器件的技术进步和研发水平进行了详细论述,同时对毫米波器件关键的材料、工艺及集成电路的发展进行了分析,指出该技术的应用在军事上有着广阔的前景,对雷达、毫米波通信、精密制导等装备的研制有较好的指导作用.     

Estimation for sensitive characteristics using optional randomized response technique

This paper considers the problem of procuring honest responses to estimate the population mean of sensitive quantitative characteristics. It aims at pointing out that potential difference between sub-populations seems to be unnoticed under the usual optional randomized response technique. To make an extension to cover all the situations, we propose two alternative survey procedures that enable us to estimate the mean and the variance unbiasedly. Estimation for the sensitivity level of a question is under consideration as well. Efficiency comparisons have also been carried out to study the performances of the proposed procedures.     

射频电导轮廓的概念及应用

提出了粗糙表面射频电导轮廓的概念及物理意义,介绍了与射频电导轮廓相关的技术指标和测量、计算方法,对射频电导轮廓在分析计算粗糙表面射频等效电导率、优化射频微波器件加工工艺流程等方面的应用情况进行了简介。实验表明,研究成果与实测数据相吻合。     

浅析生产者和消费者问题算法

操作系统中生产者和消费者的进程同步问题是计算机中一个经典的抽象模型。利用信号量机制以及Windows API函数解决生产者和消费者问题的算法,可以解决生产者和消费者之间的同步互斥关系。     

1080MW汽轮发电机DMR装置频繁报警分析及处理

发电机转子接地保护装置主要是为了预防转子运行中意外接地造成电流过大而导致转子烧毁设置的专用装置。电站汽轮发电机组在投入运行以后,发电机转子接地保护装置频繁误发报警,对发电机组正常运行监视造成极大影响。     

Under the sway of a mobile device during an in‐store shopping experience

Mobile device technology is transforming the retail shopping experience. Today's consumers are mobile dependent, preferring to consult with their phone, instead of using the salesperson, while shopping at the retail store. In the absence of literature investigating how the salesperson might sell to this omni‐channel, mobile‐connected consumer, this paper proposes a conceptual model and tests its proposed linkages. The empirically tested model presents a dyadic view of the omni‐channel consumer and the salesperson. Uniquely contributing to the omni‐channel and marketing literature, samples from an emerging economy (India) and developed (United States) economy represent the contexts. Specifically, the research examines the salesperson's role in selling to a mobile‐dependent consumer who uses mobile technology to search for information during the sales meeting. Findings show that adaptive selling can affect purchase intention and customer predisposition to comply with salesperson input. Results also reveal how perceived control, mobile dependence, and customer predisposition to comply with mobile device input affect purchase intention. Managerial and research implications specifically appropriate for the omni‐consumer retail setting are offered.     

新材料在变电站降阻方案中的应用

本文以广东汕头市华润海丰电厂新材料在变电站降阻方案中的应用展开谈论,旨在为实现绿色变电站评价指标体系中于降阻材料的合理选择提供依据。