《周易·井·九二》译注辨正

<周易·井·九二>爻辞"井谷射鲋,漏",其中"射"字,译注多望文生训;汉帛书本"唯敞句"的"句",有译注以同音通假训释.其实,射"通"厌",句"通"漏".     

Carrier phase shifted SPWM based on current sourced multi-modular converter for active power filter

INTRODUCTION iout = i1 (4) Active power filter (APF) (Grady et al., 1990) The resulting iout is sinusoidal and high quality.is a power conversion system for compensating the In this way, APF could provide the harmonic cur-harmonic and reactive power from the nonlinear rent, which is an essential requirement of theload.…     

DPLL implementation in carrier acquisition and tracking for burst DS-CDMA receivers

INTRODUCTIONDS CDMAtechniquesplayanimportantroleincurrentHFCnetworksandwirelesscommuni cationsystems (Chungetal.,1993;Gaudenzietal.,1996 ;Viterbi,1997) .CrucialtotheDS CDMAsystemispropercodeandcarriersyn chronization .Literatureoncodesynchronizationisabun…     

对居民住宅漏电保护的探讨

分析探讨了接地保护、接零保护和漏电断路器保护三种措施的原理和各自存在的问题，从而可知，在居民住宅供电线路上加装漏电断路保护器是居民住宅漏电保护的较好选择．     

Wind-induced internal pressure response for structure with single windward opening and background leakage

Theoretical analysis and wind tunnel tests were carried out to study wind-induced intemal pressure response for the structure with single windward opening and background leakage. Its goveming differential equation was derived by the Bemoulli equation in an unsteady-isentropic form. Numerical examples were provided to study the additive damping caused by background leakage in laminar and turbulent flow, and the influence of background leakage on fluctuating internal pressure response was quantized. A series of models for low-rise building with various opening ratios and background leakage were designed and wind tunnel tests were conducted. It is shown that the fluctuating intemal pressure reduces when the background leakage are considered and that the effect of background leakage can be predicted accurately by the governing differential equation deduced in this paper.     

SC12M5变速器后油封漏油故障分析及解决

SC12M5变速器是上海汽车变速器有限公司设计开发,用于匹配上汽通用五菱B系列后驱发动机的后驱变速器,SC12M5变速器主要匹配SGMW N1B、N200B、N300B、D150B、CN100等车型。2009年上汽通用五菱售后部门反馈,部分匹配B系列后驱发动机的车辆存在后油封漏油的故障现象,技术部门针对后油封漏油故障问题进行故障分析及改进。该篇文章简要介绍了SC12M5变速器后油封漏油问题的故障分析及解决过程。     

中国碳密集型产业的出口战略研究——基于欧盟碳泄漏的视角

运用世界投入产出表数据对碳密集型产业进行了识别,测度结果表明:2005年以来中国各产业碳排放强度已下降40%,完成中国自主贡献目标一半以上。碳排放量较高的6类产业累计碳泄漏量占欧盟对中国碳泄漏总量的70%以上。其中,大部分碳密集型产业目前虽然出口量大,但已经不具有对欧盟出口的比较优势。而其他非金属矿物等产业虽具有出口竞争力,但却属于新兴技术产业亟需的稀缺资源,应对其出口规模加以限制。产业调整的同时,也需积极应对碳泄漏背景下的相关贸易壁垒,为碳密集型产业出口战略转型获取发展空间。     

英语学习与其文化背景的关系

语言可以反映一个民族的特征和一个民族的文化。语言与其文化密不可分，语言是文化的载体，只有了解和掌握了英语国家的文化背景，学习者才能正确使用其语言。     

小区煤气泄漏监控系统的设计与实现

介绍了一种基于RS485和USB总线技术的小区煤气泄漏监控系统的组成与原理。该系统不仅能及时准确地检测出煤气的泄漏,发出声音报警;同时启动阀门关闭煤气管道;而且可以充分发挥RS485和USB两种总线的优点,能够进行长距离、高速度的多路信号采集与传输。该系统具有较高的工作可靠性,较强的测控功能,及易于扩展性。     

浅析混凝土小型空心砌块建筑常见质量通病的控制和预防

针对目前应用较广的混凝土小型空心砌块建筑中常见的质量通病（墙体开裂，墙面渗漏）的发生原因进行了分析，并提出了防治开裂和渗漏的措施，实践证明，只要措施得当，墙体开裂、墙面渗漏是完全可以避免和防治的。