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Prediction of Teaching Behavior and Psychological Capital on Adolescents' Mental Health

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Prediction of Teaching Behavior and Psychological Capital on...

作者： Conny lorenz 华中师范大学

学位级别：硕士

The development of positive psychology lead to a dual-factor approach in combining subjective well-being(SWB)and psychopathology for a more comprehensive understanding of mental *** capital(PsyCap)and teaching behaviors(TB)are focus of latest research as to their impact on adolescents'mental health *** our cross-sectional study we investigated 760 Chinese middle school students from grades 7 and 8 on self-report scales as to their spread on four mental health groups in a dual-factor model(complete mental health,vulnerable,symptomatic but content,and troubled).The four groups differed significantly in PsyCap,as well as in instructional(IB),socio-emotional(SEB),and organizational behavior(OB).As predictors PsyCap,followed by the two subscales of positive teaching IB and OB respectively,showed the strongest prediction on the outcome variables SWB and *** significantly moderated the relationship of negative teaching and psychopathology,in particular externalizing *** another main finding,PsyCap proved to be a partial mediator between positive teaching and psychopathology,and totally mediated the relationship of positive teaching and *** mediating effect was found for negative *** implications relate to education and intervention approaches for facilitating adolescents'mental health,screening programs,and resource management.

关键词： dual-factor model of mental health psychological capital teaching behavior moderation mediation Chinese adolescents adolescents'mental health

思科网络技术学院教程第一、二学期第2版实验手册 G

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2002年

作者：（美）Jim lorenz 尹霞译

本手册中的实验基于最新的思科网络技术学院计划，提供了附加信息，绝大部分实验都需要实际动手操作，并需要配置Cisco路由器或者是模拟器，所有的实验和练习都包含概述和工作表两部分。

ISBN: (纸本)7115106185

关键词：实验计算机网络

来源：畅想之星图书光盘版（南... 评论

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高使用性能粉末冶金零件的表面致密化

粉末冶金技术 2012年第2期30卷 144-150页

作者： lorenz S Sigl Günter Rau Christian Dennert PMG Ftissen GmbH Füssen 87629德国

为保证机构的可靠性,历史上一直在用锻钢合金批量生产高转矩变速器零件,诸如变速器齿轮、高性能链轮、单向离合器座圈及滚珠轴承座圈。虽然用粉末冶金工艺生产的零件成本低廉,但常规粉末冶金钢的静态、疲劳及耐磨性能的局限性,使粉末冶... 详细信息

为保证机构的可靠性,历史上一直在用锻钢合金批量生产高转矩变速器零件,诸如变速器齿轮、高性能链轮、单向离合器座圈及滚珠轴承座圈。虽然用粉末冶金工艺生产的零件成本低廉,但常规粉末冶金钢的静态、疲劳及耐磨性能的局限性,使粉末冶金零件不能应用于上述领域。为解决这些缺欠,近年来,一直在研发用选择性表面致密化(SSD)改进粉末冶金钢性能的各种生产工艺。特别是,PMG集团开发出了一种拥有专利权的表面致密化工艺——DensiForm。利用这种工艺可使零件表面关键部分形成深度达1mm的完全致密化表面层,而零件心部仍然是多孔性的。这种结合与粉末冶金材料合金化的灵活性,使生产的烧结钢零件的使用性能可与在高应力下使用的锻钢性能相比拟。本文将介绍2个例子,即变速器中应用的表面致密化螺旋齿轮和直齿链条的驱动链轮。本文说明了螺旋齿轮和驱动链轮的生产工艺与显微组织,介绍了轿车变速器用螺旋齿轮的性能(其中包括在三轴总成的成对试验台架上得到的滚动接触疲劳的数据)和表面致密化链轮的材料性能与使用性能。

关键词：选择性表面致密化粉末冶金螺旋齿轮链轮

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轿车变速器的粉末冶金齿轮

粉末冶金技术 2012年第5期30卷 388-395页

作者： Günter Rau lorenz S.Sigl 韩凤麟 Sinterstahl Füssen GmbH D-87629 Füssen Germany

粉末冶金齿轮由于材料中残留有孔隙,和用切削加工铸锻材料制造的零件相比,强度与耐磨性较差,不适用于重负载应用。通过横向辗压,利用选择性表面致密化,可显著改进粉末冶金齿轮的强度与耐磨性。这篇论文阐述了用压制、烧结、选择性表面... 详细信息

粉末冶金齿轮由于材料中残留有孔隙,和用切削加工铸锻材料制造的零件相比,强度与耐磨性较差,不适用于重负载应用。通过横向辗压,利用选择性表面致密化,可显著改进粉末冶金齿轮的强度与耐磨性。这篇论文阐述了用压制、烧结、选择性表面致密化、表面硬化及根据要求的品质水平可能还有最后珩磨,制造轿车变速器的粉末冶金螺旋齿轮。研究了各种参数,诸如材料组成、横向辗压与热处理的工艺参数对致密化与硬度深度、孔隙形态、显微组织、齿轮齿廓、DIN品质以及表面粗糙度的影响。初步研究是在3轴的总成成对试验台架上进行的,其表明粉末冶金齿轮具有高负载承载能力。

关键词：粉末冶金螺旋齿轮横向辗压选择性表面致密化

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Overlaoad capability and dynamic behaviour of low and high voltage IGBT and ultra fast softswitching diode

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Overlaoad capability and dynamic behaviour of low and high v...

ANISODAMINE INHIBITS NON-SELECTIVELY MUSCARINIC RECEPTORS IN ISOLATED CANINE VEINS

第4届国际电力电子及运动控制国际会议

作者： L.lorenz Infineon AG P.O. Box 80 09 49 81609 Munich Germany

＜正＞ By a vertical shrink of the NPT IGBT to a structure with a thin n" base and a low doped field stop layer a new IGBT can be realized with drastically reduced overall losses. Especially the combination of the field stop concept with the trench transistor cell results in the almost ideal carrier concentration for a device with minimum on state voltage and lowest switching losses. This concept has been developed for IGBTs and diodes from 600V up to 6,5kV. This paper shows the Save Operation Area Behaviour requirements for switching characteristics for low voltage devices （600V/1200V） and high voltage devices （3,5kV/6,5kV）. It will be discussed that the overall switching behaviour for inductive loads is determined by the diode and IGBT at equivalent positions. In particular at high voltage applications precautions have to be taken during turn off and turn on. During turn on the dynamic electrical field strength of the diode is important to observe and during the turn off the same situation occurs in the IGBT.

关键词： FS-NPT-IGBT EMCON-Diode short circuit capability switching performance

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中华医学杂志(英文版) 1992年第1期105卷 5-10页

作者：郭恒怡 Robert R.lorenz PaulM.Vanhoutte 100005 Beijing Department of Pathophysiology Faculty of Basic Medicine Chinese Academy of Medical Sciences 00005 Beijing Department of Pathophysiology Faculty of Basic Medicine Chinese Academy of Medical Sciences

Organ chamber experiments were designed to de-termine the effects of anisodamine,an alkaloidstructurally related to atropine,on prejunctional M2-and postjunctional M2-muscarinic receptors in iso-lated canine saphenous *** results showed thatboth acetylcholine-induced contraction and dilatationwere inhibited in a competitive manner by anisodamineor *** affinity of anisodamine for pre-andpostjunctional muscarinic receptors was comparable（pKB=7.78 and 7.86,respectively）.However,com-pared with atropine,the affinity of anisodamine forprejunctional M2-receptors was about 1/8;while thatfor postjunctional M1-receptors was only 1/25 ofthat of atropine（pKB=8.69 and 9.25,respectively foratropine）.The data demonstrate that anisodamine is anon-selective muscarinic antagonist,a modulatorrather than a *** probable mechanismsinvolved are discussed.

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A concept for multiterawatt fibre lasers based on coherent pulse stacking in passive cavities

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Light(Science & Applications) 2014年第1期3卷 62-68页

作者： Sven Breitkopf Tino Eidam Arno Klenke lorenz von Grafenstein Henning Carstens Simon Holzberger Ernst Fill Thomas Schreiber Ferenc Krausz Andreas Tunnermann Ioachim Pupeza Jens Limpert Institute of Applied Physics Abbe Center of PhotonicsFriedrich-Schiller-Universitat Jena07745 JenaGermany Helmholtz Institute Jena 07743 JenaGermany Max Planck Institute of Quantum Optics 85748 GarchingGermany Ludwig Maximilians University Munchen Department of Physics85748 GarchingGermany Fraunhofer Institute for Applied Optics and Precision Engineering 07745 JenaGermany

Since the advent of femtosecond lasers,performance improvements have constantly impacted on existing applications and enabled novel ***,one performance feature bearing the potential of a quantum leap for high-field applications is still not available:the simultaneous emission of extremely high peak and average *** applications such as laser particle acceleration require exactly this performance regime and,therefore,challenge laser technology at *** the one hand,canonical bulk systems can provide pulse peak powers in the multi-terawatt to petawatt range,while on the other hand,advanced solid-state-laser concepts such as the thin disk,slab or fibre are well known for their high efficiency and their ability to emit high average powers in the kilowatt range with excellent beam *** this contribution,a compact laser system capable of simultaneously providing high peak and average powers with high wall-plug efficiency is proposed and *** concept is based on the temporal coherent combination(pulse stacking)of a pulse train emitted from a high-repetition-rate femtosecond laser system in a passive enhancement ***,the pulse energy is increased at the cost of the repetition rate while almost preserving the average *** concept relies on a fast switching element for dumping the enhanced pulse out of the *** switch constitutes the key challenge of our *** this challenge could,for the first time,allow the highly efficient dumping of joule-class pulses at megawatt average power levels and lead to unprecedented laser parameters.

关键词： cavity dumping cavity enhancement coherent pulse addition high average power and high peak power ultrafast lasers

Skeletal Muscle Fiber Type and Morphology in a Middle-Aged Elite Male Powerlifter Using Anabolic Steroids

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Journal of Science in Sport and Exercise 2021年第4期3卷 404-411页

作者： Steven B.Machek Kent A.lorenz Marialice Kern Andrew J.Galpin James R.Bagley Muscle Physiology Laboratory Department of KinesiologyCollege of Health and Social SciencesSan Francisco State University1600 Holloway AvenueGym 101San FranciscoCA 94132USA Exercise and Biochemical Nutrition Laboratory Department of HealthHuman Performanceand RecreationRobbins College of Health and Human SciencesBaylor UniversityWacoTXUSA Biochemistry and Molecular Exercise Physiology Laboratory Center for Sport PerformanceCalifornia State UniversityFullertonUSA

Powerlifting regularly exposes athletes to extreme stimuli such as chronic heavy resistance training(HRT),and many powerlifters choose to augment their performance with anabolic-androgenic steroids(AAS).However,little is known about the myocellular adaptations that occur from long-term HRT and AAS use,especially into middle *** were presented with the unique opportunity to study muscle cells from an elite-level powerlifter(EPL;age 40 years)with≥30 years of HRT experience and≥15 years of AAS *** purpose of this case study was to identify myocellular characteristics[myosin heavy chain(MHC)fiber type,fiber size,and myonuclear content]in EPL,as well as compare these data to existing *** participant underwent a resting vastus lateralis muscle biopsy and single fibers were analyzed for MHC content via SDS-PAGE.A subset of fibers underwent MHC-specific imaging analysis via confocal microscopy to identify cell size(cross-sectional area,CSA)and myonuclear domain(MND)*** fiber type distribution was 9% I,12% I/IIa,79% IIa,and 0% other *** pure MHC IIa(fast-twitch)fiber content was amongst the highest reported in the *** analysis of MHC IIa fibers revealed a mean CSA of 4218±933μm^(2) and MND of 12,548±3181μm^(3).While the fast-twitch fiber CSA was comparable to values in previous literature,mean MND was smaller than has been reported in untrained men,implying greater capacity for growth and *** findings showcase the unique muscle cell structure of an elite powerlifter,extending the known physiological limits of human muscle size and strength.

关键词： Resistance training Myonuclear domain Myonuclei Myosin heavy chain Confocal microscopy Muscle biopsy

ECPE-The Industrial and Research Network for Power Electronics in Europe

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ECPE-The Industrial and Research Network for Power Electroni...