簡(jiǎn)介：摘要片式電阻因其體積小、精度高、可靠性好等優(yōu)點(diǎn)被廣泛應(yīng)用于許多領(lǐng)域，有替代傳統(tǒng)電阻的趨勢(shì)。片式電阻是通過(guò)絲網(wǎng)將電阻材料印刷到電阻基片上的，其阻值通常具有不大于40的制造誤差，一般采用激光調(diào)阻法對(duì)其阻值進(jìn)行修調(diào)。調(diào)阻精度是衡量激光調(diào)阻性能的重要技術(shù)指標(biāo)，由于我國(guó)在激光調(diào)阻方面的研究起步較晚，與國(guó)外設(shè)備相比，國(guó)產(chǎn)激光調(diào)阻機(jī)的調(diào)阻精度有待進(jìn)一步提高。論文分析了影響激光調(diào)阻精度的因素，確定應(yīng)用優(yōu)化調(diào)阻控制策略的方法。實(shí)際數(shù)據(jù)表明，混合集成電路中采用的同一臺(tái)激光調(diào)阻設(shè)備按照同一種精度要求微調(diào)電阻阻值時(shí)，實(shí)際調(diào)阻精度與被調(diào)電阻的阻值具有一定的相關(guān)性。提高調(diào)阻精度，而優(yōu)化調(diào)阻控制策略的前提是準(zhǔn)確掌握激光調(diào)阻的阻值對(duì)調(diào)阻精度的影響，因此論文的研究?jī)?nèi)容為畢業(yè)設(shè)計(jì)的任務(wù)是基于數(shù)理統(tǒng)計(jì)原理，結(jié)合數(shù)值模擬方法，確定相關(guān)關(guān)系的定量表達(dá)式，并結(jié)合實(shí)測(cè)數(shù)據(jù)進(jìn)行分析驗(yàn)證。關(guān)鍵詞激光調(diào)阻調(diào)阻精度線性擬合目錄目錄目錄第一章第一章緒論緒論111引言112激光調(diào)阻513激光調(diào)阻系統(tǒng)及修調(diào)技術(shù)機(jī)理614切割圖形715激光調(diào)阻機(jī)7第二章第二章線性擬合的基本原理線性擬合的基本原理8第二章第二章MATLAB的應(yīng)用的應(yīng)用931MATLAB產(chǎn)生隨機(jī)數(shù)1232線性擬合和線性回歸1233擬合優(yōu)度與檢驗(yàn)14第四章第四章實(shí)驗(yàn)原理實(shí)驗(yàn)原理1941實(shí)驗(yàn)?zāi)康?942試驗(yàn)分析2043試驗(yàn)步驟21第五章第五章實(shí)驗(yàn)過(guò)程實(shí)驗(yàn)過(guò)程2151試驗(yàn)數(shù)據(jù)的獲得2152線性擬合過(guò)程2553拐點(diǎn)計(jì)算與結(jié)論2654試驗(yàn)中的不足與展望28

簡(jiǎn)介：湖南某金礦ZK0202鉆孔工程設(shè)計(jì)及孔斜控制摘要湖南某金礦ZK0202鉆孔，位于湖南省岳陽(yáng)市平江縣長(zhǎng)壽鎮(zhèn)黃金洞鄉(xiāng)楊山莊，地處山區(qū)，區(qū)內(nèi)構(gòu)造變形強(qiáng)烈，褶皺、韌性剪切帶、斷層、劈理、面理廣泛發(fā)育，構(gòu)成了本區(qū)復(fù)雜的構(gòu)造格局。在這樣的地質(zhì)條件下進(jìn)行鉆孔施工，需要進(jìn)行嚴(yán)格的工程設(shè)計(jì)。采用金剛石繩索取芯鉆進(jìn)方法。首先在鉆孔結(jié)構(gòu)設(shè)計(jì)方面采用三級(jí)孔身結(jié)構(gòu)，采用Ф91MM的鉆頭開(kāi)孔至6M，下入Ф89MM孔口管；中間孔段用直徑為Ф75MM的鉆頭鉆進(jìn)至152M，下入Ф73MM套管；終孔段用Ф59MM的鉆頭鉆進(jìn)至終孔。選擇地質(zhì)系統(tǒng)液壓立軸式巖心鉆機(jī)XY5型巖心鉆機(jī)、國(guó)內(nèi)往復(fù)式泥漿泵BW250型、直徑為5CM的供水管、鉆機(jī)動(dòng)力用Y250M4電動(dòng)機(jī)、取芯設(shè)備電動(dòng)機(jī)采用Y132S4型、選擇功率大于190KW的發(fā)電機(jī)組、采用S59型繩索取芯鉆具、鉆塔選擇SG18，附屬設(shè)備包括小口徑金剛石鉆進(jìn)用水龍頭、普通提引器、JW1型泥漿攪拌機(jī)、木馬夾持器。管材使用金剛石繩索取芯專用管材。選擇金剛石繩索取芯雙管鉆頭。Ф59MM孔段鉆壓控制在45～85KN、轉(zhuǎn)速控制在600～1200KN、沖洗液泵量控制在30～45LMIN。Ф75MM孔段鉆壓控制在6～10KN、轉(zhuǎn)速控制在400～850KN、沖洗液泵量控制在40～60LMIN。Ф91MM孔段鉆壓控制在8～15KN、轉(zhuǎn)速控制在350～700KN、沖洗液泵量控制在50～70LMIN。泥漿采用泡沫泥漿配方為高陽(yáng)土4～5；7；CMC02～03；PHP200～NA2CO3300PPM；DF1發(fā)泡劑150～200PPM。為了解決鉆孔偏斜嚴(yán)重的問(wèn)題，對(duì)造成孔斜的原因進(jìn)行分析，采取必要的防斜手段。首先設(shè)備安裝及開(kāi)孔質(zhì)量必須做好。再者在鉆遇強(qiáng)造斜孔段采用下限鉆壓及轉(zhuǎn)速，即75MM孔段采用鉆壓6KN、轉(zhuǎn)速355RMIN，59MM孔段采用鉆壓45KN、轉(zhuǎn)速577RMIN。最后在鉆具的組合上采用滿眼鉆具防斜，合理的連接扶正器，75MM孔段上扶正器至鉆頭的距離為937M；中扶正器至鉆頭的距離為37M。下扶正器距鉆頭1M；59MM孔段上扶正器至鉆頭的距離為772M；中扶正器至鉆頭的距離為309M。下扶正器距鉆頭1M。關(guān)鍵詞鉆孔工程設(shè)計(jì)孔斜控制滿眼鉆具扶正器I目錄第1章前言111畢業(yè)設(shè)計(jì)的目的112畢業(yè)設(shè)計(jì)的內(nèi)容要點(diǎn)113畢業(yè)設(shè)計(jì)的任務(wù)1第2章工程概況221礦區(qū)自然地理222礦區(qū)交通條件323生活及工作條件324鉆孔目的及要求4241鉆孔目的4242鉆孔要求425設(shè)計(jì)鉆孔地層情況4第3章鉆孔結(jié)構(gòu)設(shè)計(jì)531確定鉆孔結(jié)構(gòu)的原則532鉆孔結(jié)構(gòu)設(shè)計(jì)5第4章鉆探設(shè)備及器材641鉆機(jī)選擇642泥漿泵7421泥漿泵的流量計(jì)算743供水泵及供水管844動(dòng)力機(jī)9441鉆機(jī)用電動(dòng)機(jī)的型號(hào)和技術(shù)參數(shù)9442取芯設(shè)備用電動(dòng)機(jī)的型號(hào)和技術(shù)參數(shù)945發(fā)電機(jī)組功率選擇946繩索取芯設(shè)備10461S59型繩索取芯鉆具1047鉆塔10471塔高選擇10472鉆塔負(fù)荷量計(jì)算1148附屬設(shè)備12481水龍頭12482吸水管和高壓送水管12483提引器13484泥漿攪拌機(jī)13485滑車裝置的選擇13486天車荷載計(jì)算及鉆塔校核14487夾持器1449鉆探管材選擇14第5章鉆機(jī)場(chǎng)的修建及設(shè)備的安裝1651鉆探機(jī)場(chǎng)的修建1652設(shè)備的安裝與布置16521鉆機(jī)場(chǎng)的總體布置16

簡(jiǎn)介：目錄目錄第一章第一章設(shè)計(jì)背景及設(shè)計(jì)意義2第二章第二章系統(tǒng)方案設(shè)計(jì)3第三章第三章硬件531溫度檢測(cè)和變送器532溫度控制電路633AD轉(zhuǎn)換電路734報(bào)警電路835看門狗電路83636顯示電路顯示電路1037電源電路12第四章軟件設(shè)計(jì)1441軟件實(shí)現(xiàn)方法1442總體程序流程圖1543程序清單19第五章設(shè)計(jì)感想29第六章參考文獻(xiàn)30第七章附錄3171硬件清單3172硬件布線圖31第二章系統(tǒng)方案的設(shè)計(jì)這次課程設(shè)計(jì)題目為熱電偶構(gòu)成的熱處理爐的溫度控制系統(tǒng)，技術(shù)要求1設(shè)定溫度范圍為0～9992溫度顯示為0～9993到設(shè)定溫度報(bào)警熱處理爐爐溫控制系統(tǒng)的控制過(guò)程是單片機(jī)定時(shí)對(duì)爐溫進(jìn)行檢測(cè)，經(jīng)AD轉(zhuǎn)換芯片得到相應(yīng)的數(shù)字量，經(jīng)過(guò)計(jì)算機(jī)進(jìn)行數(shù)據(jù)轉(zhuǎn)換，得到應(yīng)有的控制量，去控制加熱功率，從而實(shí)現(xiàn)對(duì)溫度的控制。如下圖所示進(jìn)行系統(tǒng)設(shè)計(jì)時(shí)應(yīng)考慮如下問(wèn)題1爐溫變化規(guī)律的控制，即爐溫按預(yù)定的溫度時(shí)間關(guān)系變化。2溫度控制范圍如0～1000℃，這就涉及到測(cè)溫元件、電爐功率的選擇等。3控制精度、超調(diào)量等指標(biāo)，這涉及到AD轉(zhuǎn)換精度、控制規(guī)律選擇等。溫控系統(tǒng)主要由溫度傳感器、溫度調(diào)節(jié)儀、執(zhí)行裝置、被控對(duì)象四個(gè)部分組成，其系統(tǒng)結(jié)構(gòu)圖如圖1所示。被控制對(duì)象是大容量、大慣性的電熱爐溫度對(duì)象，是典型的多階容積遲后特性，在工程上往往近似為包含有純滯后的二階容積遲后；由于被控對(duì)象電容量大，通常采用可控硅作調(diào)節(jié)器的執(zhí)行器，其具體的電路圖如圖2所示。

簡(jiǎn)介：附錄一附錄一英文文獻(xiàn)原文英文文獻(xiàn)原文OPTIMIZEDKINEMATICSOFMECHANICALPRESSESWITHNONCIRCULARGEARSEDOEGELMHINDERSMANNRECEIVEDONJANUARY81997ABSTRACTTHEQUALITYOFPARTSMANUFACTUREDUSINGMETALFMINGOPERATIONSDEPENDSTOALARGEDEGREEONTHEKINEMATICSOFTHEPRESSRAMNONCIRCULARGEARSYTOOBTAINTHOSESTROKETIMEBEHAVIOURSWEAIMATASANOPTIMUMFTHEVARIOUSMETALFMINGOPEWITHAROTATIONALANGLEDEPENDENTSPEEDRATIOINTHEPRESSDRIVEMECHANISMOFFERANEWWARATIONSINTERMSOFMANUFACTURINGTHEPAPEREXPLAINSTHEPRINCIPLEUSINGAPROTOTYPEPRESSWHICHWASBUILTBYTHEINSTITUTEFMETALFMINGMETALFMINGMACHINETOOLSATHANOVERUNIVERSITYITWILLPRESENTTHEKINEMATICSASWELLASTHEFCESTQUESTHATOCCURINTHEPROTOTYPEFURTHERMETHEPAPERDEMONSTRATESUSINGONEEXAMPLEOFDEEPDRAWINGONEOFFGINGTHATTHEPRESSDRIVEMECHANISMWITHNONCIRCULARGEARSMAYBEUSEDADVANTAGEOUSLYFVIRTUALLYALLMETALFMINGOPERATIONSKEYWDSPRESSGEARKINEMATICS1LNTRODUCTIINCREASINGDEMSONQUALITYINALLAREASOFMANUFACTURINGENGINEERINGINSHEETMETALFMINGASWELLASINFGINGGOHINHWITHTHENECESSITYTOMAKEPRODUCTIONECONOMICALINCREASINGMARKETIENTATIONREQUIRESTHATBOTHTECHNOLOGICALECONOMICREQUIREMENTSBEMETTHEIMPROVEMENTOFQUALITYPRODUCTIVITYOUTPUTBYMEANSOFINNOVATIVESOLUTIONSISONEOFTHEKEYSTOMAINTAININGEXTENDINGONESMARKETPOSITIONINTHEPRODUCTIONOFPARTSBYMETALFMINGWENEEDTODISTINGUISHBETWEENTHEPERIODREQUIREDFTHEACTUALFMINGPROCESSTHETIMESNEEDEDTOHLETHEPARTWITHSOMEFMINGPROCESSESWEHAVETOADDTIMEFNECESSARYADDITIONALWKSUCHASCOOLINGLUBRICATIONOFTHEDIESTHISYIELDSTWOMETHODSOFOPTIMIZATIONACCDINGTOTHETWOASPECTSOFQUALITYOUTPUTINDERTOSATISFYBOTHASPECTSTHETASKISTODESIGNTHEKINEMATICSTAKINGINTOACCOUNTTHEREQUIREMENTSOFTHEPROCESSPROCESSINEQUALMEASURETOTHEGOALOFDECREASINGWKPRODUCTIONCOSTSPREVIOUSPRESSDESIGNSHAVENOTSIMULTANEOUSLYMETTHESETECHNOLOGICALECONOMICALREQUIREMENTSTOASUFFICIENTEXTENTTHEYAREVERYCOSTLYTODESIGNMANUFACTURESUCHASPRESSESWITHLINKDRIVES6THISMAKESITNECESSARYTOLOOKFINNOVATIVESOLUTIONSFTHEDESIGNOFTHEPRESSITSDESIGNSHOULDBELARGELYSTARDIZEDMODULARIZEDINDERTOREDUCECOSTS6FIG1PROTOTYPEPRESS3PRESSDRIVEWITHNONCIRCULARGEARS31PRINCIPLETHEUSEOFNONCIRCULARGEARSINTHEDRIVEOFMECHANICALCRANKPRESSESOFFERSANEWWAYOFMEETINGTHETECHNOLOGICALECONOMICDEMSONTHEKINEMATICSOFTHEPRESSRAMAPAIROFNONCIRCULARGEARSWITHACONSTANTCENTERDISTANCEISTHUSPOWEREDBYTHEELECTRICMOTBYTHEFLYWHEELDRIVESTHECRANKMECHANISMITSELFTHEUNIFMDRIVESPEEDISTRANSMITTEDCYCLICALLY

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簡(jiǎn)介：論文題目隔爆變壓器的安裝工藝及故障排查年級(jí)2011級(jí)院系機(jī)電工程與自動(dòng)化學(xué)院學(xué)生姓名指導(dǎo)老師2014年6月2摘要隔爆變壓器是一種可移動(dòng)的成套供、變電裝置。用來(lái)改變交流電壓的大小，它適用于有甲烷混合氣體和煤塵等有爆炸危險(xiǎn)的礦井中。將6KV10KV電源轉(zhuǎn)換成400（380）、693（660）、1200（1140）、3450（3300）V煤礦井下所需的低壓電源。礦用變壓器外殼為全波紋，兩邊開(kāi)蓋式和上開(kāi)蓋式結(jié)構(gòu)，具有機(jī)械強(qiáng)度高、溫升低、散熱效果好等優(yōu)點(diǎn)。鐵芯選用優(yōu)質(zhì)低損耗硅鋼片，空載損耗低、空載電流小、噪音低。采用H級(jí)絕緣材料及先進(jìn)的絕緣結(jié)構(gòu)，熱穩(wěn)定性好，可在高溫下持續(xù)滿負(fù)荷運(yùn)行。隔爆變壓器的安裝工藝就變成了一項(xiàng)重要的工作，它與隔爆變壓器的工作性能息息相關(guān)。因此，本文中所講的就是隔爆變壓器的安裝工藝，當(dāng)然還有最為重要的隔爆變壓器的故障排除，他關(guān)系到生產(chǎn)供電的安全性。關(guān)鍵字關(guān)鍵字隔爆變壓器安裝故障排除

簡(jiǎn)介：AUTOMATINGAUTOMATINGMANUFACTURINGMANUFACTURINGSYSTEMSSYSTEMSWITHWITHPLCSPLCSCONTROLENGINEERINGHASEVOLVEDOVERTIMEINTHEPASTHUMANSWERETHEMAINMETHODFCONTROLLINGASYSTEMMERECENTLYELECTRICITYHASBEENUSEDFCONTROLEARLYELECTRICALCONTROLWASBASEDONRELAYSTHESERELAYSALLOWPOWERTOBESWITCHEDONOFFWITHOUTAMECHANICALSWITCHITISCOMMONTOUSERELAYSTOMAKESIMPLELOGICALCONTROLDECISIONSTHEDEVELOPMENTOFLOWCOSTCOMPUTERHASBROUGHTTHEMOSTRECENTREVOLUTIONTHEPROGRAMMABLELOGICCONTROLLERPLCTHEADVENTOFTHEPLCBEGANINTHE1970SHASBECOMETHEMOSTCOMMONCHOICEFMANUFACTURINGCONTROLSPLCSHAVEBEENGAININGPOPULARITYONTHEFACTYFLOWILLPROBABLYREMAINPREDOMINANTFSOMETIMETOCOMEMOSTOFTHISISBECAUSEOFTHEADVANTAGESTHEYOFFER11LADDERLOGICLADDERLOGICISTHEMAINPROGRAMMINGMETHODUSEDFPLCSASMENTIONEDBEFELADDERLOGICHASBEENDEVELOPEDTOMIMICRELAYLOGICLOGICDIAGRAMSWASASTRATEGICONEBYINGLADDERLOGICASTHEMAINPROGRAMMINGMETHODTHEAMOUNTOFRETRAININGNEEDEDFENGINEERSTRADESPEOPLEWASGREATLYREDUCEDMODERNCONTROLSYSTEMSSTILLINCLUDERELAYSBUTTHESEARERARELYUSEDFLOGICARELAYISASIMPLEDEVICETHATUSESAMAGICFIELDTOCONTROLASWITCHASPICTUREDINFIGURE11WHENAVOLTAGEISAPPLIEDTOTHEINPUTCOILTHERESULTINGCURRENTCREATESAMAGICFIELDTHEMAGICFIELDPULLSAMETALSWITCHREEDTOWARDSITTHECONTACTSTOUCHCLOSINGTHESWITCHFIGURE11SIMPLERELAYLAYOUTSSCHEMATICSFIGURE13APLCILLUSTRATEDWITHRELAYSMANYRELAYSALSOHAVEMULTIPLEOUTPUTSTHROWSTHISALLOWSANOUTPUTRELAYTOALSOBEANINPUTSIMULTANEOUSLYTHECIRCUITSHOWNINFIGURE14ISANEXAMPLEOFTHISITISCALLEDASEALINCIRCUITINTHISCIRCUITTHECURRENTCANFLOWTHROUGHEITHERBRANCHOFTHECIRCUITTHROUGHTHECONTACTSLABELLEDABTHEINPUTBWILLONLYBEONWHENTHEOUTPUTBISONIFBISOFFAISENERGIZEDTHENBWILLTURNONIFBTURNSONTHENTHEINPUTBWILLTURNONKEEPOUTPUTBONEVENIFINPUTAGOESOFFAFTERBISTURNEDONTHEOUTPUTBWILLNOTTURNOFFFIGURE14ASEALINCIRCUIT12PROGRAMMINGTHEFIRSTPLCSWEREPROGRAMMEDWITHATECHNIQUETHATWASBASEDONRELAYLOGICWIRINGSCHEMATICSTHISELIMINATEDTHENEEDTOTEACHTHEELECTRICIANSTECHNICIANSENGINEERSHOWTO

簡(jiǎn)介：摘要當(dāng)今世界，電力在人們的日常生活和工業(yè)生產(chǎn)中有著相當(dāng)重要的作用。在完善的電力系統(tǒng)中，斷路器是必不可少的開(kāi)關(guān)設(shè)備。斷路器不僅可以可以切斷系統(tǒng)運(yùn)行時(shí)的空載電流和負(fù)荷電流，而且在電力系統(tǒng)出現(xiàn)故障時(shí)，可以與繼電保護(hù)裝置配合切斷過(guò)負(fù)荷電流，對(duì)電力系統(tǒng)的安全穩(wěn)定運(yùn)行起著必不可少的作用。高壓領(lǐng)域常選用高壓真空斷路器，不同于其他滅弧介質(zhì)的斷路器。高壓真空斷路器質(zhì)量輕、結(jié)構(gòu)簡(jiǎn)單、運(yùn)行維護(hù)方便、不會(huì)對(duì)環(huán)境造成污染，所以一經(jīng)采用，迅速發(fā)展為高壓開(kāi)關(guān)領(lǐng)域的主流。傳統(tǒng)的高壓真空斷路器按其操動(dòng)機(jī)構(gòu)可分為電磁式和電動(dòng)彈簧式，早期，真空斷路器常配備電磁式操動(dòng)機(jī)構(gòu)，該機(jī)構(gòu)能較好地滿足真空滅弧室的需求，被廣泛地應(yīng)用于實(shí)踐并取得了很大發(fā)展，但電磁式操動(dòng)機(jī)構(gòu)的機(jī)械結(jié)構(gòu)復(fù)雜故障率高，很快就而被新興的電子控制、永磁保持的永磁操動(dòng)機(jī)構(gòu)替代。永磁機(jī)構(gòu)主要利用永磁體的磁力使得斷路器保持在開(kāi)斷或者閉合位置，減少了機(jī)械部件的使用，既減輕了斷路器的體積，也使得故障發(fā)生的機(jī)濾大大減少。采用了永磁機(jī)構(gòu)的斷路器，可以與計(jì)算機(jī)技術(shù)相互結(jié)合，便于實(shí)現(xiàn)斷路器控制的智能化本論文以單片機(jī)為基礎(chǔ)，設(shè)計(jì)一套高壓真空斷路器雙穩(wěn)態(tài)永磁機(jī)構(gòu)的智能控制系統(tǒng)，實(shí)現(xiàn)保護(hù)、控制、測(cè)量、開(kāi)關(guān)量監(jiān)測(cè)等功能。實(shí)現(xiàn)對(duì)電力系統(tǒng)的電壓、電流、有功、無(wú)功的實(shí)時(shí)監(jiān)測(cè)，實(shí)現(xiàn)電流速斷保護(hù)、過(guò)電壓保護(hù)和欠電壓保護(hù)、自診斷以及自鎖和報(bào)警等功能。關(guān)鍵詞電力系統(tǒng)；斷路器；永磁操動(dòng)機(jī)構(gòu)目錄0前言11概述311設(shè)計(jì)研究的內(nèi)容和意義312永磁操動(dòng)機(jī)構(gòu)的發(fā)展現(xiàn)狀與前景42永磁操的機(jī)構(gòu)621永磁操動(dòng)機(jī)構(gòu)的優(yōu)點(diǎn)722永磁機(jī)構(gòu)的結(jié)構(gòu)723雙穩(wěn)態(tài)永磁機(jī)構(gòu)的工作原理1024雙穩(wěn)態(tài)永磁機(jī)構(gòu)的磁路1125永磁機(jī)構(gòu)的始動(dòng)安匝1526雙穩(wěn)態(tài)永磁機(jī)構(gòu)動(dòng)態(tài)特性163永磁機(jī)構(gòu)的控制系統(tǒng)1631永磁機(jī)構(gòu)控制系統(tǒng)設(shè)計(jì)原則1732控制器總體設(shè)計(jì)1733控制系統(tǒng)的硬件結(jié)構(gòu)2134硬件模塊設(shè)計(jì)22341電源設(shè)計(jì)22342高壓真空斷路器分、合閘狀態(tài)的檢測(cè)24343CPU模塊24344信號(hào)輸入單元25345信號(hào)輸出單元26

簡(jiǎn)介：我的社會(huì)實(shí)踐報(bào)告班級(jí)商務(wù)133班學(xué)號(hào)2013040103312姓名鄧惠碧正文社會(huì)實(shí)踐是讓我們大學(xué)生可以從大學(xué)校園走出來(lái)，走向社會(huì)，走進(jìn)生活，懂得謀生的艱辛，學(xué)會(huì)謀生的技能。在注重綜合能力的今日，寒暑假社會(huì)實(shí)踐被作為促進(jìn)學(xué)生技能培訓(xùn)，加強(qiáng)身體和心理素質(zhì)，學(xué)會(huì)校園內(nèi)學(xué)不到的技能的第一步。一個(gè)學(xué)期眨眼就過(guò)去，寒假有一個(gè)多月，我覺(jué)得應(yīng)該好好找個(gè)工作然后好好做，辛苦點(diǎn)也沒(méi)關(guān)系。但是礙于家里有點(diǎn)事，我媽說(shuō)不如就像暑假那樣去幼兒園幫幫忙，剛好時(shí)間方面適合。這次還有我的同學(xué)一起來(lái)幫忙，雖然時(shí)間不長(zhǎng)，也讓我覺(jué)得很開(kāi)心。時(shí)間過(guò)得飛快，轉(zhuǎn)眼間我的社會(huì)實(shí)踐任務(wù)已經(jīng)結(jié)束了?；叵肫饎傞_(kāi)始工作的時(shí)候，對(duì)于在幼兒園工作仍然感覺(jué)很新鮮，不過(guò)去年暑假也來(lái)幫忙過(guò)，所以工作上挺熟練了。這次更多是在照顧小孩上學(xué)到了新知識(shí)。像在做早操這件事就有各種情況發(fā)生，我在的那個(gè)班里有個(gè)小朋友，在這里叫他小雄吧，他是個(gè)很有個(gè)性的孩子，學(xué)習(xí)很認(rèn)真，但是不愿聽(tīng)老師的意見(jiàn)，喜歡怎樣就怎樣。有一天早上，大家都像往常一樣非常認(rèn)真地跟著老師做早操，可是小雄蹲著玩地上的樹(shù)葉，老師問(wèn)他為什么不做早操，他說(shuō)做早操?zèng)]意思，讓他站起來(lái)，一轉(zhuǎn)身，他又蹲下去，老師怎么哄他都不聽(tīng)。直到早操結(jié)束，我走也能運(yùn)用到我們平時(shí)的待人接物，盡管我們長(zhǎng)大了我們還是有缺乏自信的問(wèn)題，所以或許我們也能幫助身邊的一些缺乏自信的朋友，或者可能是自己。這次的實(shí)習(xí)能獲得這么多的進(jìn)步真的要感謝這么多老師和小孩們，畢竟我的經(jīng)驗(yàn)少，很多時(shí)候都要她們幫忙。雖然不是第一次做，在工作中仍會(huì)有犯錯(cuò)的時(shí)候，還好他們沒(méi)有太多的責(zé)怪，反而給予我很多幫助和指導(dǎo)，他們鼓勵(lì)我不懂就問(wèn)，提醒我要珍惜時(shí)間，這些我都牢記在心里。特別從小孩們身上我學(xué)到了很多，他們的懂事，他們的可愛(ài)，讓我覺(jué)得我長(zhǎng)大了反而沒(méi)他們厲害。下面是我這次社會(huì)實(shí)踐的體會(huì)心得社會(huì)實(shí)踐已經(jīng)結(jié)束了，在這段難忘的日子里，讓我對(duì)在社會(huì)上工作有了新的認(rèn)識(shí)和看法，只有自己經(jīng)歷過(guò)才會(huì)明白這個(gè)社會(huì)的人是如此不同，跟在學(xué)校遇到的要不同，遠(yuǎn)沒(méi)有我們想象中這么美好，但也沒(méi)網(wǎng)絡(luò)上說(shuō)的怎么恐怖。不管怎樣，都要保持自我的美好，應(yīng)該對(duì)社會(huì)抱有希望，擁有期望始終比頹廢放棄要好得多。在大學(xué)里，我們還是一張白紙，只有通過(guò)實(shí)踐才能真正認(rèn)識(shí)到社會(huì)，在這次實(shí)踐中，我能親身感受到工作中的人情世故，在磕磕碰碰中一點(diǎn)一點(diǎn)地積累經(jīng)驗(yàn)和學(xué)習(xí)待人接物之道。也讓我從中挖掘到自己的能力，同時(shí)認(rèn)識(shí)到自己在不同方面的缺點(diǎn)和不足，例如在工作中還是缺乏積極性。幼兒園的工作每天都是千篇一律，但是每天都是不一樣的，雖然都是已經(jīng)比我小很多的小孩，不同的小孩都有著不同的性格，對(duì)

簡(jiǎn)介：1畢業(yè)論文畢業(yè)論文課題名稱非物質(zhì)文化遺產(chǎn)保護(hù)下梅山武術(shù)的傳承與發(fā)展學(xué)生姓名學(xué)號(hào)系、年級(jí)專業(yè)指導(dǎo)教師年月日IIONINHERITANCEDEVELOPMENTOFINTANGIBLECULTURALHERITAGEMEISHANSURGERYABSTRACTMEISHANSURGERYISAPOPULARTRADITIONALSPTINREGIONALETHNICRURALAREASOFCENTRALCHINASHUNANPROVINCEISAFOLKBOXINGCOMPLETETECHNICALSYSTEMITSIGINSCANBETRACEDBACKTOTHEANCIENTNTHERNSONGDYNASTYACCDINGTOLEGENDCREATEDBYWENTIANXIANGAVERYWITHGEOGRAPHICALCULTURALACTERISTICSPROFOUNDCULTURALHERITAGEITSMILLENNIUMCULTUREHASDEEPLYAFFECTEDTHEFMATIONOFMANYOFTHELOCALVILLAGERSTHEVILLAGEFOLKOFPERSONALITYISAMANIFESTATIONOFONEOFTHEMAINCARRIERSOFHUNANCULTUREHOWEVERWITHTHEMIGRATIONOFTHETIMESTHEDEVELOPMENTOFMEISHANSURGERYAFFECTEDBYMANYFACTSINCLUDINGIMPROVINGTHELIVINGSTARDSOFTHELOCALVILLAGESOFMATERIALPRODUCTIONCHANGESINVILLAGERSIDEASTHEIMPACTOFFEIGNCULTUREGOVERNMENTPOLICYFOCUSDEVIATIONMARTIALARTSWKSCHOOLTOTHELACKOFLOCALSPTSCULTURALEDUCATIONTHESEFACTSLEDTOSURGERYNOWISTHESTATUSQUOMEISHANDOWNTURNSTAGESOFDEVELOPMENTHOWEVERTHISTRADITIONALSPTMEISHANSURGERYINNONMATERIALCULTURALASPECTSOFMODERNLIFETHATPEOPLEHAVEALOTOFUSEFULVALUESPECIFICALLYINHEALTHEDUCATIONNONMATERIALECONOMYTOURISMINDERTOMAKENONMATERIALVALUESMEISHANSURGERYTOINHERITANCEDEVELOPMENTINMYRESEARCHMEISHANSURGERYASITSINDEPTHUNDERSTINGANALYSISTOXINHUACOUNTYSUBURBANCOUNTYLOCATEDINTHESOUTHEASTERNMARTIALARTSSCHOOLMARTIALARTSTEACHERSPRACTITIONERSOFMARTIALARTSSTUDYBYREFERENCETOLITERATUREFIELDTRIPSLAWSTATISTICSLOGICALANALYSISOTHERRESEARCHMETHODSMEISHANSURGERYTOOBJECTIVELYMAKEAMECOMPREHENSIVEINVESTIGATIONANALYSISDOWNCASTMEISHANFSURGERYFDIFFERENTPOPULATIONSPERCEPTIONRECOGNITIONOFTHEEXTENTOFSURGERYWEREINVESTIGATEDMEISHANACCESSGANIZETHECOLLECTEDDATAANALYSISTHEFINALANALYSISOFTHECURRENTSITUATIONITSREASONSFTHEDOWNTURNONTHISBASISTHEPROPOSEDCRESPONDINGMEASURESDESIGNEDTOAPPEALTOSOCIALIMPTANCETHATMEISHANMASSESREPRESENTEDBYTHETRADITIONALFOLKARTMARTIALARTSIVEINHERITANCEITSESSENCETOITSDREGSINNOVATIONONTHE

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簡(jiǎn)介：英文原文THEANTILOCKBRAKINGSYSTEMANOMALYADRINKINGDRIVERPROBLEMDAVIDDAVIDWWHARLESSHARLESSGEGEGEGEEEHOFFERHOFFERDEPARTMENTOFECONOMICSVIRGINIACOMMONWEALTHUNI_ERSITYBOX844000RICHMONDVA23284USARECEIVED30NOVEMBER2000RECEIVEDINREVISEDFM19FEBRUARY2001ACCEPTED28FEBRUARY2001ANIMPTANTANOMALYWITHTHEINCPATIONOFSAFETYAPPLIANCESINTOMOTVEHICLESISTHEINEFFECTIVENESS–EVENPERVERSEEFFECTS–OFANTILOCKBRAKINGSYSTEMSABSPARTICULARLYASMEASUREDBYFATALCRASHINVOLVEMENTANALYSESOFINSURANCECLAIMSINTHEUSHIGHWAYLOSSDATAINSTITUTE19941995SHOWEDNOCHANGEINCLAIMFREQUENCYAFTERASETOFGMVEHICLESADOPTEDANTILOCKBRAKESIN1992DESPITEENGINEERINGSTUDIESSHOWINGANTILOCKBRAKESRESULTEDINMUCHBETTERBRAKINGPERFMANCEESPECIALLYONWETROADSUSINGTHESAMEGROUPOFGMVEHICLESFARMERETAL1997FOUNDTHATADOPTIONOFABSRESULTEDINME1993–1995CRASHESRESULTINGINTHEDEATHOFANABSVEHICLEOCCUPANTANOTHERGROUPOFVEHICLESTHATADOPTEDANTILOCKBRAKESASEARLYAS1985WEREFOUNDTOHAVEBEENINVOLVEDINBOTHMEFATALCRASHESRESULTINGINTHEDEATHOFANABSVEHICLEOCCUPANTMEINVOLVEMENTSOVERALLTHESEPERVERSEEFFECTSWEREMOSTEVIDENTINSINGLEVEHICLECRASHESUPDATINGTHEEARLIERPAPERWITH1996–1998DATAONTHESAMETWOGROUPSOFVEHICLESFARMER2001FINDSTHATTHEABSEQUIPPEDVEHICLESNOLONGERHADAWSEFATALACCIDENTINVOLVEMENTRATE16THEABSANOMALYHASSPARKEDALARGEPROGRAMOFRESEARCHATTHENATIONALHIGHWAYTRANSPTATIONSAFETYADMINISTRATIONTHEMANYCOMPONENTSOFWHICHAREDESCRIBEDBYGARROTTMAZZAE1999SEVERALEXPLANATIONSHAVEBEENFWARDEDFTHEANOMALYFIRSTCONSISTENTWITHTHERISKCOMPENSATIONHYPOTHESISTHEHIGHERINCIDENCEOFFATALCRASHESCOULDBEDUETOINCREASEDSPEEDAGGRESSIVENESSBYDRIVERSOFABSEQUIPPEDVEHICLESEVANS1995EVANSGERRISH1996SECONDTHEREMAYBEPROBLEMSWITHIMPROPEROPERATIONOFABSEQUIPPEDVEHICLESTHEHIGHERINCIDENCEOFSINGLEVEHICLECRASHESCOULDBEDUETOABRUPTSTEERINGCHANGESBYOFANABSVEHICLEOCCUPANTFEXAMPLEFROMTHEFARSFILESNATIONALHIGHWAYTRAFFICSAFETYADMINISTRATION1997WEOBSERVED328ACCIDENTSINVOLVINGTHEEDABSEQUIPPED1992MODELYEARGMVEHICLELINESDURINGTHEYEARS1993–L9953UNDERANULLHYPOTHESISOFNOCHANGEINSUCHFATALACCIDENTINVOLVEMENTSUPONADOPTIONOFABSWEEXPECT2737SUCHINVOLVEMENTSGIVENTOTALVEHICLEREGISTRATIONSOFTHE1992MODELYEARVEHICLELINESTHEINVOLVEMENTRATEOF1991MODELYEARVEHICLELINESWITHOUTABSTHERESULTINGRISKRATIOOBSERVEDEXPECTEDEQUALS120ONECANPRESENTATESTOFTHENULLHYPOTHESISOFNOCHANGEINTHERATEOFFATALACCIDENTINVOLVEMENTIETHATTHERISKRATIOISNOTSIGNIFICANTLYDIFFERENTFROM10EITHERTHROUGHA95CONFIDENCEINTERVALFTHERISKRATIOACHISQUAREDSTATISTICOBSERVEDEXPECTED2EXPECTEDWITHONEDEGREEOFFREEDOMBRESLOWDAY1987ASINFARMERETAL1997THENUMBEROFFATALACCIDENTSRESULTINGINTHEDEATHOFANABSVEHICLEOCCUPANTIS20HIGHERTHANEXPECTEDDURINGTHE1993–1995PERIODRISKRATIO120X21079P0001ASINFARMER2001THERISKRATIOISNOTSIGNIFICANTLYDIFFERENTFROMONEDURINGTHE1996–1998PERIODRISKRATIO095X2097P03216BIFURCATIONOFTHESEFATALACCIDENTSBYWHETHERTHEDRIVEROFTHEVEHICLEWASDRINKINGALCOHOLHASATREMENDOUSIMPACTONTHERISKRATIOSFACCIDENTSOCCURRINGFROM1993TO1995DRINKINGDRIVERSINABSEQUIPPEDVEHICLELINESHAVE82MEINVOLVEMENTSRESULTINGINTHEDEATHOFANOCCUPANTOFTHEABSVEHICLETHANEXPECTEDGIVENVEHICLEEXPOSURESTHENUMBEROFDRINKINGDRIVERSINVOLVEDINSUCHFATALACCIDENTSINPREABSVEHICLESRISKRATIO182PL6E11BUTFSOBERDRIVERSTHERISKRATIO099ISNEITHERPRACTICALLYSTATISTICALLYDIFFERENTFROMARISKRATIOOFONEINCONTRASTTOTHE1993–1995PERIODBIFURCATIONBYWHETHERTHEDRIVERWASDRINKINGMAKESLITTLEDIFFERENCEDURINGTHE1996–1998PERIODTHERISKRATIOIS092FDRINKINGDRIVERS096FSOBERDRIVERSNEITHERSIGNIFICANTLYDIFFERENTFROMONEHENCEWHENTHEABSANOMALYISOBSERVEDTHEPROBLEMAPPEARSTOBELARGELYCONFINEDTODRINKINGDRIVERSWHENTHEABSANOMALYDISAPPEARSSOTOODOTHEDRAMATICDIFFERENCESINRISKRATIOSBETWEENDRINKINGSOBERDRIVERS4ASIMILARPATTERNEXISTSINTHEANALYSISOFALLFATALACCIDENTINVOLVEMENTSTHEREARE64MEFATALACCIDENTINVOLVEMENTSTHANEXPECTEDFDRINKINGDRIVERSDURING1993THROUGH1995P44E9DURINGTHIS3FARMERETALREPTFINDINGFOURMESUCHACCIDENTSDURINGTHE1993–1995PERIODONEMESUCHACCIDENTDURINGTHE1996–1998PERIODTHESEVERYSLIGHTDIFFERENCESSHOULDHAVENOIMPACTONTHE

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簡(jiǎn)介：我的社會(huì)實(shí)踐報(bào)告享游獅山，與你相聚班級(jí)秘書131學(xué)號(hào)2013040401349姓名祝小芳2014年5月份，自從程主任和班主任把項(xiàng)目交給了我負(fù)責(zé)后，當(dāng)時(shí)，身為班長(zhǎng)的我，便開(kāi)始帶領(lǐng)10個(gè)班委為這個(gè)公益性項(xiàng)目努力，10個(gè)班委，每人負(fù)責(zé)一部分，我負(fù)責(zé)總的，大家效率特別高，就幾天的時(shí)間我們就把一份完整的投標(biāo)書做好了，在接下來(lái)的項(xiàng)目投標(biāo)書中，我們的投標(biāo)書是全場(chǎng)三十多個(gè)項(xiàng)目中做得最出色的，得了第一。這個(gè)好消息讓我們班委十分開(kāi)心，大家心底悠然而生一種自豪感，而且，這是我們第一次跟校外的單位接觸，而我們做的又是公益性事情，項(xiàng)目的投標(biāo)是多么的順利，這一切是多么的美好，所以，大家都是一股干勁，而作為項(xiàng)目負(fù)責(zé)人的我，心中是充滿了感激與沖勁，感激在10個(gè)班委的協(xié)助下，把項(xiàng)目拿下來(lái)才如此的順利，沖勁的事，項(xiàng)目、項(xiàng)目、聽(tīng)起來(lái)就讓人覺(jué)得激動(dòng)，我不在再把眼光只放在管理一個(gè)班級(jí)的上面了，接觸到外面，我相信真正的實(shí)踐可以讓我學(xué)到很多課堂上學(xué)不到的東西，而我此刻也相信，通過(guò)這個(gè)項(xiàng)多東西好的方面親子家庭總的情況大家還是玩得比較開(kāi)心的，小朋友也很喜歡和義工們玩耍，而且，大家沒(méi)有遇到什么危險(xiǎn)，這次活動(dòng)總體是順利進(jìn)行的。不足之處由于活動(dòng)開(kāi)展前我們沒(méi)有跟家長(zhǎng)見(jiàn)過(guò)面和初次接觸經(jīng)驗(yàn)不足，并沒(méi)有在前一天以短信方式提醒參與者的著裝要求和時(shí)間觀念等注意事項(xiàng)，所以，義工們向我反映，個(gè)別家長(zhǎng)那天早上還是穿著睡衣過(guò)去的，也有部分家長(zhǎng)，遲到，使計(jì)劃中的出發(fā)時(shí)間推遲了半個(gè)小時(shí)。另外，由于此次活動(dòng)我們還沒(méi)申請(qǐng)到經(jīng)費(fèi)（對(duì)方說(shuō)最早要四天后才能申請(qǐng)到），物資什么的都是我們幾個(gè)義工先出的，所以，經(jīng)費(fèi)有限，導(dǎo)致獎(jiǎng)品有限，在玩游戲的時(shí)候，實(shí)行贏著有獎(jiǎng)品的策略，但是，畢竟是小孩子，輸了沒(méi)有獎(jiǎng)品，因此，有個(gè)別小孩哭了，這是我們做得不好的地方，本來(lái)我們的宗旨就是要讓大家開(kāi)心快樂(lè)的。