Energy psychology: A review of the preliminary evidence.

Energy psychology utilizes imaginal and narrative-generated exposure, paired with interventions that reduce hyperarousal through acupressure and related techniques. According to practitioners, this leads to treatment outcomes that are more rapid, powerful, and precise than the strategies used in other exposure-based treatments such as relaxation or diaphragmatic breathing. The method has been exceedingly controversial. It relies on unfamiliar procedures adapted from non-Western cultures, posits unverified mechanisms of action, and early claims of unusual speed and therapeutic power ran far ahead of initial empirical support. This paper reviews a hierarchy of evidence regarding the efficacy of energy psychology, from anecdotal reports to randomized clinical trials. Although the evidence is still preliminary, energy psychology has reached the minimum threshold for being designated as an evidence-based treatment, with one form having met the APA Division 12 criteria as a "probably efficacious treatment" for specific phobias; another for maintaining weight loss. The limited scientific evidence, combined with extensive clinical reports, suggests that energy psychology holds promise as a rapid and potent treatment for a range of psychological conditions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A case of depression: Introducing David.

A brief overview of the client, David, is presented. David participated in a short-term emotion-focused therapy for the treatment of depression. In this paper the client’s presenting problems and history are described to provide a context for the brief excerpt that follows. The excerpt is taken from his first session of psychotherapy and was used by the four different therapists to develop a case formulation illuminating their specific orientation so that these could be contrasted and compared. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

EMC中的两种接地技术

电磁兼容接地设计有单点接地和多点接地2种基本方法,低频电路中要求用单点接地,高频电路中用多点接地,用多点接地设备如果不能通过EFT/B测试,可以尝试单点接地方法。实验证明,对某些高频电路完全可以用单点接地方法满足EMC要求。     

多功能电能表的电快速瞬变脉冲群问题处理方法研究

针对多功能电能表的电快速瞬变脉冲群(electrical fast transient,EFT)抗扰度问题,分析了EFT产生和骚扰机理,研究了EFT的处理方法,提出了针对多功能电能表电源输入端口电快速瞬变脉冲群问题的解决方法.试验结果表明,所提方法可以有效提高多功能电能表的EFT抗扰度等级,达到GB/T 17626.4—2006标准要求.     

Improved complex filter applied in enhancing EFT/B immunity at a coal mine monitoring substation

A monitoring system is an important guarantee of safety in a production mine. However, not all monitoring substations pass the electrical fast transient/burst (EFT/B) immunity test and the explosion-proof test simultaneously. To enhance the immunity, the values of capacitance and inductance should be increased, which are actually limited by coal mine explosion-proof standards. Hence, for the first time, an active filter was applied in an electromagnetic interference (EMI) output filter. As a result, the interfer-ence within 30 MHz clearly weakened, but the frequency spectrum had a wide range. An EMI input filter and ferrite beads were adopted to restrain higher frequency interference. An output interference spectrogram of the substation was obtained with an ana-lyzer. The results indicate that the improved complex filtering markedly help to control interference. With the support of improved complex filtering and other enhancing immunity means about I/O ports, the substation managed to pass both the EFT/B immunity test and the explosion-proof test synchronously. We conclude that improved complex filtering is of vital importance in enhancing the electromagnetic compatibility (EMC) of the coal mine monitoring system.     

基于数字化CPS的EFT/B干扰仿真与抑制

对数字化CPS和无源滤波器的基本概念和原理进行了研究与介绍,通过对EFT/B骚扰源和数字化CPS实验电路模型的PSpice仿真,分析验证不同类型滤波器对干扰信号的抑制效果并提出改进方法并试验验证.从中选择出性能佳、成本低的滤波器方案.     

实现IEC61000-4-4新标准的电快速瞬变脉冲群(EFT/B)发生器技术要点分析

本文介绍符合IEC61000-4-4：2004新标准的EFT/B（电快速瞬变脉冲群）发生器,并对其区别于IEC61000-4-4：1995标准的技术要点进行分析,最后对试验配置及试验中注意事项作了介绍。     

二次回路中电快速瞬变脉冲群骚扰的研究

为有效抑制电快速瞬变脉冲群（EFT/B）骚扰对微机保护装置的干扰,研究了EFT/B骚扰的形成和耦合机理。分析了开关分断操作形成EFT/B骚扰的过程;通过对二次回路中控制继电器操作时形成EFT/B骚扰的研究,分析得出出口继电器线圈上耦合的骚扰电压严重干扰微机保护装置的直流电源电压;采取续流二极管、电磁屏蔽和RC保护等主动防护措施抑制EFT/B骚扰的形成和耦合。结果表明,可从干扰源和耦合途径上有效抑制EFT/B骚扰对微机保护装置的干扰。     

一种适于异构环境的任务调度算法

针对异构环境独立任务调度问题提出两个调度原则,并基于Min-min算法提出优先级最小最早完成时间算法(Priority min-min,PMM).该算法将任务在各处理机上执行时间的标准误差作为任务的优先级.选取最早完成时间较小的k个任务,优先调度其中优先级最高的一个.在实验基础上分析了参数$k$对PMM算法性能的影响. PMM算法克服了min-min算法单纯追求局部最优的局限性,更适合于异构环境.实验数据表明PMM算法能有效地降低调度跨度,其性能比min-min算法有明显提高.     

多功能电能表抗电快速瞬变脉冲群综合抑制方法应用研究

针对多功能电能表电快速瞬变脉冲群抗扰度(EFT/B)试验产生的问题,通过对瞬变脉冲群产生的机理及其特点分析,提出基于软硬件技术的电快速瞬变脉冲群干扰综合抑制方法,应用纵向扼流圈、优化电源滤波器等方式改进电源回路抗干扰能力;通过降低元器件寄生电容,增加专用隔离芯片,优化PCB板布局等措施来提高输入输出端和通讯端的抗干扰能力;同时应用递推式防脉冲平均值数字滤波法,来增强其软件部分稳定性和容错能力。实验结果表明,采取综合抑制措施后,多功能电能表电快速瞬变脉冲群抗干扰能力得到显著提高。