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1.
1 Introduction InthispapersoftinsoftoutMAPdecodingalgorithmsbasedonthefastHadamardtransform(FHT)aredeveloped,andtheirapplicationsindecodinglowratemultidimensionalconcatenatedHadamardcodesareexamined.Theproposedmethodhasanotableadvantageofachiev…  相似文献   

2.
1 Introduction Afuzzyneuralnetworkcontrollerbasedonthecombinationoffuzzylogicsystemandneuralnetworkhasuniquecharacteristics.Itnotonlyhasthefunctionoflearningandassociativememorybutalsoclearlyrepresentsakindofstructuredknowledgeanddoesfuzzyinferen…  相似文献   

3.
1 Introduction Withtheincreasingcapacityofhydrogeneratorsandtherelevantlyincreasingsizeandloadingofthrustbearings,theconfigurationofpadsupportedonasinglepivothasmoreandmoredifficultyinmeetingallthedemandsinrealoperationconditions.Theconfiguration…  相似文献   

4.
1 Introduction H.P.Yuenintroducedtheconceptoftwophotoncoherentstatein1976[1].Sincethattime,thesqueezedstateshavebeenoneofthemainsubjectsinquantumoptics.Usualsqueezingreferstothesecondordersqueezing.C.K.HongandL.Mandelgeneratedthesqueezingtohighe…  相似文献   

5.
1 Introduction Theadaptivefuzzycontrolisasuccesfulissueofthefuzzycontrol.Theadaptivefuzzycontrolofonlinelearningandonlinecontrolistheorientationofthedevelopmentintheadaptivefuzzycontrolfield.Butthecomplexoftheplantsuchasstrongcoupledrelations,long…  相似文献   

6.
1 Introduction Theimportanceofinformationtechnologyiswellknowninthedevelopmentsofnowadaysandthenextcentury,evenmore,itisoneofthemajorcomponentsofthehightechitemsof863project.Becauseofthealmostunlimitedincreaseofinformationvolumeneededtoberecordedo…  相似文献   

7.
1IntroductionSincethemid90’s,thefinitediferencetimedomainmethodhasbeenappliedtosolveanumberofacousticalproblems.Examplesin...  相似文献   

8.
1 Introduction Quantumcoherenttransportinmesoscopicsystemhasbeeninvestigatedextensivelyinthepastdecade.Motivatedbysomerecentexperiments,madebyYacobyetal.[1]andBuksetal.[2],phasesensitivetransprotinanAharonovbohm(AB)ringwithaquantumdot(QD)embedded…  相似文献   

9.
1 Introduction Withthedevelopmentofinformationtechnology,speechtransmissionandspeechstorageisbecomingincreasinglyimportant.Accordingtothepresentdevelopmentofdigitalspeechprocessing,developmentofspeechcodingmethodswithhighcodingefficiencyandlowdist…  相似文献   

10.
1 Introduction Theproblemonthestabilityofinviscidincompressibleswirlingflowhasbeenstudiedbymanyauthors.Rayleigh[1]investigatedtheflowwithconstantaxialvelocity,i.e.U′=dUdr=0andfirstgotasufficientandnecessaryconditionofstabilityforaxisymmetricdistur…  相似文献   

11.
TheKinematicsandForceAnalysisofaNewLegMechanismforMulti┐leggedWal┐ClimbingRobotLuoYiQianJinwuShenYaozongGongZhenbang(Schoolof...  相似文献   

12.
South Korea is an energy-guzzling country.Economic reasons in the country force its households to save more energy.Household energy consumption in South Korea has grown slow compared to other sectors a...  相似文献   

13.
对宁波市7-18岁在校青少年进行体质健康状况的测试,并进行统计分析,探寻青少年身体形态和运动素质发展趋势,研究宁波市青少形体发育和运动素质发展的规律和敏感区。为更好地开展青少年健康成长的监控,有针对性地开展体育锻炼、营养补充等方面提供科学有效的理论依据。  相似文献   

14.
在Decker and Zhao模型基础上引入母国政府信贷支持政策变量使用预算约束优化和比较静态分析方法推导出了更具一般性的异质性中小企业OFDI国际化股权投资最优结构选择的影响因素模型。经过国内机会成本调整后的相对利润、中小企业的所有者的风险规避参数、东道国市场运营风险、母国政府信贷支持政策是本文模型中影响最优所有权比例的主要因素。包括投资保险、融资担保、优惠贷款、税收优惠、征信机制、海外投资立法等多种方式的广泛意义上的支持政策和法规将使中小企业OFDI股权投资收益良多。  相似文献   

15.
Commercialized capsule-type endoscopes move passively by peristaltic waves (and gravity), which makes it difficult for doctors to diagnose the areas of interest more thoroughly and actively. To resolve this problem of passivity, it is necessary to find a special locomotion principle, which fits the gastrointestinal (GI) tract. In this paper, a legged locomotive mechanism with shape memory alloy (SMA) actuation based on the peristaltic principle is proposed, and then the structure of the locomotion mechanism is introduced. Based on the preliminary results, the design, modeling, and fabrication of an SMA microactuation concept for application in an endoscopic capsule are given, as well as the SMA spring and legged component design, which is the core section of the system design. We used the pseudo-rigid-body model (PRBM) to analyze nonlinear and large deflections of the SMA legged component. Thus, a prototype endoscope with an SMA spring and six legged components was designed and fabricated. It is 15 mm in diameter and 33 mm in total length, with a hollow space to house other parts needed for endoscopy such as a camera, a radio frequency (RF) module, and sensors. During testing, the locomotive mechanism was effective in a plastic tube environment.  相似文献   

16.
《论语》一书具有相当高的文学价值,对后世文学影响颇巨。《论语》的题材选择、体裁形式、文本结构、语言风格,对《语林》一书均有不可忽视的影响。  相似文献   

17.
中国民间故事是中国民间文化的重要组成部分,蕴藏在民间故事中的民族精神被世代所传承。然而,“反智主义”叙事在当代民间故事中屡有呈现。其生成动因首先是表达了民间对体力劳动的礼赞;其次是“大众化”的社会主义话语体系对启蒙话语体系的颠覆,使“反智主义”在某些历史阶段上升为国家意志,并渗透于民间。因此,重新认识民间故事的社会功能。对其“反智主义”倾向予以明辨,引导民间文学创作和整理工作向健康良性方向发展,已经成为民间故事研究的一个重要论题。  相似文献   

18.
自从科学心理学诞生百余年以来,它的发展成就是有目共睹的。但是,当前世界范围内的心理学研究尤其是中国的心理学研究由于受到各种因素的干扰,已经对心理学的研究和进一步的发展带来了相当负面的影响,甚至导致心理学研究充满着深刻的危机即所谓“病理现象”。心理学研究中的“病理现象”犹如寄生在心理学“百花园”中的病虫害,若不采取及时有效的措施加以治理,必将危及心理学研究的学术声誉乃至颠覆心理学及其众多相关学科。为此,笔者在分析心理学研究中的“病理现象”的一般表现的基础上,有针对性地提出了若干建设性的对策,以期引起更多的有识之士关注此问题。  相似文献   

19.
为探讨纳洛酮对急性酒精中毒小鼠总抗氧化能力T—AOC的影响。将小鼠分为空白组、急性酒精中毒小鼠模型组和解救组,解救组对急性酒精中毒小鼠注射酸纳络酮注射液。处理结束后,摘眼球取血,分离血浆,测血清中T—AOC活力。结果酒精中毒小鼠血清T—AOC活力降低,纳洛酮解救后T—AOC的活力升高显著(α=0.05),但仍未能回复到中毒之前的水平。结果表明,纳洛酮在恢复酒精中毒小鼠机体抗氧化能力方面有一定的效果,但未能大幅度扭转机体抗氧化能力降低的趋势。  相似文献   

20.
This study aimed to examine the relationship between teachers’ perceived psychological distance and structural distance from management and teachers’ affective organisational commitment (AOC) and organisational citizenship behaviour (OCB). Teachers’ trust in management was expected to mediate these relationships. Furthermore, the adequacy and openness of communication and participation in decision making were expected to reduce psychological distance. At 10 Dutch schools for vocational education and training, 884 teachers completed a questionnaire. The data were analysed using structural equation modelling. Teachers’ psychological distance had a negative effect on trust in management (supervisor and higher management) and AOC. Trust in management had a positive effect on AOC, and trust in the supervisor had a positive effect on OCB. Structural distance did not influence teacher outcomes. Communication and participation in decision making reduced teachers’ psychological distance from management. The discussion focuses on the implications of the findings to improve the effectiveness of schools.  相似文献   

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