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Design of a Bicycle Wheel Display System with Imaging Capability
No full text[[abstract]]本論文開發一套裝設在自行車車輪的顯像系統，透過裝設在車輪的LED(Light-EmittingDiode)燈條以及人眼視覺暫留(PersistenceofVision)的原理，令自行車在行駛時車輪看起來像是一個圖案，讓使用者在夜間騎乘自行車時可以大幅提升安全性。本論文以嵌入式系統的概念，結合軟體與硬體來開發自行車車輪顯像系統，利用微控制器單晶片搭配自行設計的控制電路與LED顯像電路，讓車輪在旋轉時可以完整呈現一個圖案，再加入藍牙無線網路技術，令使用者可以透過智慧型手機來更換圖案，我們自行設計的手機應用程式可提供六個圖案讓使用者選擇，還可以利用手機拍攝照片顯示。本系統結合了嵌入式系統、藍牙無線網路技術以及Android手機應用程式(ApplicationProgram,APP)，為一套自行車在行駛時車輪可顯示出圖案的顯像系統，實驗結果表示本系統可在自行車時速10-30公里時完整顯示圖案，而時速低於10公里則顯示霹靂燈、閃爍燈以及跑馬燈，讓自行車騎士在夜間騎乘時可以得到完整的保護。[[abstract]]ThisthesispresentsLED(LightEmittingDiode)imagedisplaysystemthatcandisplaypatternsonthespokesofabicycle.TheproposedsystemofLEDlightsthataremountedonthewheelcanprovidesafetybyproducingabeautifulpattern.ThemaincontrolboardandLEDlightingstripsthatdeterminethedisplayedpatternaredevelopedusingembeddedsystemandelectricalcircuitdesigns.Amobileapplicationprogramisdevelopedtocontrolthelightinghardwareremotely;thesystemcommunicateswiththemaincontrolboardviaaBluetoothwirelessnetworkinterface.Thecyclistcanchangethepatternsusingthemobileapplicationprogramorbypushingbuttonsonthemaincontrolboardbeforeriding.Sixpatternsaredesignedfordisplayusingthissystem,andthepatterncanbemadetochangerepeatedlyatpresentintervals.Thesystemalsoprovidestheapproximatedimagedisplayofactualobjectfromtheshootingofmobilephone.Experimentalresultsrevealthattheproposedsystemperformseffectivelyonthewheeluptoamaximumspeedof30km/hr.Whentherotatingspeedofwheeliswithin10km/hr,thesystemdisplaysseveralfixedimagescircularlyforprovidingthesafetyofbiking
Design and Implementation of a Contactless Converter with Asymmetrical Half-Bridge Configurations
No full text[[abstract]]本文探討非接觸式電力傳輸系統，研製一台非接觸式電力轉換器。其主要架構包含非對稱半橋驅動電路、諧振電路、以及穩壓輸出電路。本文首先對非對稱半橋架構動作方式進行說明，分析諧振電路如何幫助驅動電路進行柔性切換，以及諧振電路如何增加初次級側之間的電磁耦合。再者，針對諧振電路其電感元件與電容元件之組合方式，研究計算諧振電路等效電路模型，分析其阻抗與反射阻抗結果，選擇SS(串聯-串聯)諧振電路，並計算電路元件參數。穩壓電路使用具同步整流的升壓電路，額外加入電壓偵測的回授電路。最後，本文實際製作一非接觸式電力轉換器，輸出功率5W，傳輸距離為10mm，可供應小功率電器產品使用，驗證本文所提之電力轉換器的可行性。[[abstract]]Thisthesisistostudythenon-contactpowertransmissionsystem,andpresentsacontactlessconverter.Thearchitectureofthesystemconsistsanasymmetrichalf-bridge(AHB)drivercircuit,resonantcircuit,andaregulatedoutputcircuit.Firstly,theoperationprincipleoftheasymmetrichalf-bridgestructuresispresented,andtheresonantcircuitwasbeenanalyzedtoachievethesoftswitchingfeature.Furthermore,thecoupledmagneticresonancesarechoseninordertoimprovetheelectromagneticfield.Theresonantcircuithasadifferentcombinationofinductanceandcapacitive,anditsequivalentcircuitmodelwasstudiedandanalyzed.ASS(series-series)resonantcircuitwasbeenselectedanddesigned.Inaddition,theregulatorcircuitwasbeendesignedbyaboostconverterwithsynchronousrectifierandafeedbackcircuitforthevoltagedetection.Finally,thispaperimplementedacontactlessconverter,whoseoutputpoweris5wattsthrough10mmairgap;itcanbeverifiedthefeasibilityforapplyingtolow-powerelectricalproducts
Design and Analysis of High Efficiency Conversion Techniques for Ultra-Capacitor Charger Applications
No full text[[abstract]]本論文提出具同步整流輸出之全橋式超級電容充電電路，可實現超級電容瞬間大電流充電之需求，同時保有高轉換效率。轉換器結合倍整流技術，以降低全橋轉換電路之二次側環路電流，提升轉換器效率；同時利用倍整流之特性優化變壓器輔助繞組驅動同步整流開關之訊號。超級電容及其充電電路搭配需供給大電流之負載，可緩衝電源瞬間大功率輸出。實驗電路規格為輸入電壓380V、輸出電壓14.6V、輸出功率1kW實現所提之轉換器架構；最高效率於600W達到93.4%，滿載1kW時效率92.1%；最後以250F之超級電容實測，該轉換器可於一分鐘內將該超級電容充電至14.6V。驗證本論文提出轉換器之可行性。[[abstract]]Inthispaper,asynchronousrectifierfull-bridgedc-dcconverterforchargingultra-capacitorispresented.Thatcanrealizetherequirementofcharginghighcurrentimmediately.Theappliedconvertercombinesthetechnologyofcurrent-doublerrectifiertoreducethesecondarycirculatingcurrent,promotetheconversionefficiencyandamelioratetheself-drivingsignalofsynchronousrectifierswitches.Theappliedconverterwithinput380Vandoutput14.6Visrealized,thehighestefficiencyis93.4%at600W,andtheefficiencyisachieving92.1%atfullload1kW.A250Fultra-capacitorischargedbyappliedconverter,fromzeroto14.6Vin1minute.Theappliedconvertercanbeproveditsfeasibilitybyexperimentalresult
Starting Example Development of Decision Tree for Azure Machine Learning Platform
No full text[[abstract]]近年來智慧製造一再地被各媒體不斷的報導，鴻海，台積電等各業者無不競相投入資源研究。探究其背後因子不外乎為機器學習，大數據。各龍頭產業也紛紛想藉由機器學習與製程資料結合分析，以求減少產品生產週期。在此也凸顯機器學的重要性。本論文藉由微軟的機器學習平台，配合微軟SQLSERVER提供的資料集作為研究，進行消費者是否會購買腳踏車的預測。並以初學者的角度，一步步的探索此機器學習平台，選用決策樹演算法建立模型。我們所開發的學習範例的對象設定為機器學習門外漢，按照本論文所發展的操作步驟，可以了解微軟Azure的特性以及如何操作Azure，另外也能了解何謂決策樹[[abstract]]IntelligentManufacturinghasbeenreportedbypressinrecentyears,notonlyHonHaibutalsoTSMCandotherindustriesallscrambledforinvestingresourcesintoresourceresearch.Toidentifythepossiblecauses,theyareallforthemachinelearningandthebigdata.Leadingindustriesallhopetocombinemachinelearningandprocessinformationtoanalyzetheresultthenreducingproductionperiod.Bytheanalysis,wecouldfindtheimportanceofmachinelearning.MypaperisresearchingthedatacollectedbySQLSERVERtopredictifthecustomerswouldbuythebicyclesornotonthelearningmachineplatformbyMicrosoft.Standingasabeginningstudenttodiscoverthemachinelearningstepbystepandchoosedecisiontreemethodtoestablishmodel.Ourdevelopedlearningexamplesaresettingforthosewhonevertouchedthelearningmachine,accordingtothedevelopedoperatingprocedurebythispaper,theycouldunderstandthecharacteristicofMicrosoftAzureandhowtooperateAzure,alsorealizingwhatiscalleddecisiontree
Improvement of a Cooling Circulation Mechanism for Compressor in Freezing System
No full text[[abstract]]本篇研究中，最主要的目的是將整個冷凍系統做一優化改善，其目的是將壓縮機冷卻系統做一改善，現有壓縮機之冷卻系統，由冷媒進行冷卻，冷卻後之氣體再經由壓縮機壓縮，再進到冷凝器做一冷卻循環，此冷卻法將會佔用到壓縮機製冷之能力，經過不斷的測試與驗證，證實使用水冷卻即可達到壓縮機冷卻之目的，並且可將原有冷卻時所佔用到壓縮機之製冷能力做一釋放，可有效提升壓縮機製冷效率。而本篇研究，亦將探索，整個冷凍系統中，所產生之廢熱，來進行探討與構思，如何將系統中，廢棄之能量再回收利用，進而達到所謂之綠能再利用。此次所探討的廢能利用，則是以，冷凍系統循環作業中，所產生的高溫高壓之氣態冷媒進行探討，原本冷凍系統所產生的高溫高壓之氣態冷媒，將會進入冷凝器，藉由冷卻水塔進行熱交換，無疑的，則是浪費了許多熱能，因此探討，如何將此廢熱回收，提供熱水桶之用水，先利用此廢熱，將熱水桶所需之用水，做一預熱動作，由原本常溫的水，提高為較高溫的水，如此，既可有效的將廢熱回收，亦可降低蒸氣使用量，進而達成鍋爐降低燃油使用量。[[abstract]]Themainpurposeinthisresearchistooptimizethewholefreezingsystem,andimprovethecompressorcoolingsystem.Thepresentcompressorcoolingsystemusesrefrigerantforcooling.Thecooledairiscompressedbycompressor,andthenentersacondensertofinishacoolingcirculation.Thiscoolingmethodlimitstherefrigeratingabilityofthecompressor.Therefore,afteraseriesoftestsandverifications,ithasbeenproventhatwatercoolingenablesthecompressortoreachacoolingpurposeandliberatestherefrigeratingabilityoccupiedbytheoriginalcoolingmethod.Itbooststherefrigeratingefficiencyofthecompressor.Thisresearchalsoprobesintothewasteheatgeneratedbythewholefreezingsystemanddiscusseshowtorecyclethewasteenergyfromthesystemforreuseofgreenenergy.Theuseofthewasteenergyinthisresearchreferstothehightemperatureandhighpressuregaseousrefrigerantgeneratedbythefreezingsystemincirculationoperation.Thehightemperatureandhighpressuregaseousrefrigerantgeneratedbytheconventionalfreezingsystemwillenterthecondenserforheatexchangeinthecoolingtower.Undoubtedly,itwastesalotofheatenergy.Thus,thisresearchfocusesonhowtorecyclethewasteheat.Bymeansofprovidinghotwaterforpreheatingthebucketsoastoraisethetemperatureofroomtemperaturewater,itefficientlyrecyclesthewasteheatandalsoreducestheuseofsteam.Accordingly,consumptionoffueloilbytheboilercanbereduced
The speed economy of container ships
No full text[[abstract]]近10年來基於燃油價格的高漲，造成船舶營運的燃油成本上升；為了降低過度支出燃油成本，採取了降低航行速度，並且維持原始不變的港口服務頻率，節約快速航行所產生的燃油支出，使海上營運達成規模經濟。本研究針對定期航線之貨櫃船舶於上海-北歐航線進行不同的海上航行速度，不同船舶尺寸，所發派的船舶數目之利潤比較，探討服務頻率不改變之下，速度降低前後的利潤的變化，並針對不同的油價分析最佳利潤航行速度。經研究結果發現，大型船舶在於降低船速之節約燃油策略，效果優於中小型船舶尺寸；當油價於每噸650美金時，高裝載的大型船舶在16~20節速度行駛為最佳利潤，此時小型船舶可維持快速行駛，藉由較佳的運輸條件爭取較高利潤；於低裝載時，由於收入的降低，中小型船舶於16~20節的速度行駛可維持較佳的利潤。[[abstract]]Inthelast10years,bunkerpriceshaverisenconsiderably,leadtotherisingcostoffuelshipoperator.Inordertoreducetheexcessfuelcosts,taketoreducethespeedofsailing,andmaintaintheoriginalinvariableportservicefrequency.Tosavefuelexpenditurecausedbyrapidsailing,andtoachieveeconomiesofscaleatseaoperations.Inthisstudy,wecomparetheallocateshipsofprofitondifferentsailingspeedandshipsizeofcontainershipsonlinershippinginShanghaitoNorthEuropeline.Thestudyfoundthat,toreducethespeedofthefuelsavingstrategyoflargeships,betterthanmediumsizeship.Whentheoilpriceis650dollarsperton,largeshipswithhighloadsmakethebestprofitat16~20knots,smallshipscankeepfastsailing,striveforhigherprofitsthroughbettertransportconditions.Atlowloading,asrevenuedecreases,mediumvesselssailingonthe16~20knottomaintainabetterprofit
The Influence of Foreign Work Locus of Control and Leadership on Job Performance: Working Morale as a Mediator
No full text[[abstract]]本研究主要是以高雄楠梓加工出口區日月光半導體中的菲律賓女性外籍作業員為研究主體，以問卷調查法來探討外籍作業員的人格特質、主管領導風格對工作士氣與工作績效的影響，協助該公司基層管理人員藉由了解外籍勞工的人格特質與主管該用何種類型的管理手段來激勵其工作士氣以提升其工作績效。研究結果如下:1.外籍勞工內控人格傾向與其工作績效呈現正相關。2.體恤性與結構性主管領導風格對外勞工作績效有正向影響。3.體恤性與結構性主管領導風格對具有較高傾向內控人格外籍作業人員工作績效有正向影響。4.體恤性與結構性的主管領導風格主管領導風格對外勞工作士氣有正向影響，而結構性對工作士氣的影響顯著性高於體恤性主管領導風格。5.工作士氣在主管領導風格與工作績效的關係間具有中介效果。關鍵字:內外控人格特質、主管領導風格、工作士氣、工作績效[[abstract]]ThisstudyismainlybasedonthePhilippinefemaleforeignworkersintheAdvancedSemiconductorEngineeringexportfieldofKaohsiungNanziprocessingarea,usingthequestionnairesurveytoexploretheforeignworkerlocusofcontrol.leadershipandworkmoraleonjobperformanceinfluences,Toassistthecompany'sgrassrootsleaderstoimprovetheirworkperformancebyunderstandingthepersonalitytraitsofforeignworkersandthetypeofmanagementtheyareinchargeof.Thefindingsofthestudyareasfollows:1.Foreignworkers'internalcontrolpersonalitytendstobepositivelyrelatedtotheirjobperformance.2.Compassionateandstructuralleadershipstylehasapositiveimpactontheperformanceofforeignworkers.3.Compassionateandstructuredleadershipstyleshaveapositiveimpactonthejobperformanceofforeignworkerswithhighertendencies.4.Compassionateandstructuredleadershipstyleleadershipstylehasapositiveimpactonthemoraleofforeignworkers,whilethestructuralimpactonworkmoraleissignificantlyhigherthanthatofcompassionateleadershipstyle.5.Workmoralehasanintermediaryeffectintherelationshipbetweenexecutiveleadershipstyleandjobperformance.Keywords:Worklocusofcontrol,Leadership,Workingmorale,Jobperformanc
The Influence of Leadership Style, Job Satisfaction and Organization Commitment on the Job Retention for the Service staffs of Coast Guard in Kaohsiung Area
No full text[[abstract]]近年國防政策推動募兵制政策，在未來幾年內國軍將全面更改為志願役，而培育一位合格的志願役，需投入大量的訓練及時間成本來培育一位合格的志願役，服役時間愈長，所接受的訓練內容能更加完整，更能有效增加任務執行成功率，若能提升志願役留任比例，必能減少許多訓練成本、提升人力運用並提升國家戰力。本研究採便?抽樣的方式進行問卷發送及收集，以海巡志願役士兵為施測對象範圍，共回收有效問卷331份。並運用SPSS統計分析軟體，以描述性統計、信?分析及迴歸分析法等方法來進行資料分析，本研究之預測變項結果均有顯著之影響，如下所示：1.領導風格對留任意願呈顯著正向影響。2.工作滿意對留任意願呈顯著正向影響。3.組織承諾對留任意願呈顯著正向影響。[[abstract]]Sincethenationaldefensepolicyexecutesvolunteermilitaryservice,R.O.C.militarywillbereplacedbyvolunteerstotally.Itneedsalotoftimeandtrainingtocultivateaneligibleofficer,sergeantandsoldier.Thelongertheyserveandthebettertrainingtheyreceive.Aneligiblemilitarycanexecutehistaskefficiently.Ifwecanincreasethevolunteers’intentiontostay,itwillbeabletoreducetrainingcostsandincreasethelaborpowerutilization.Furthermore,itwillalsoenhancethenationaldefensepower.Thisresearchisbasedonconveniencesamplingincluding311validquestionnaires.ThesubjectsarefromtheCoastGuardofR.O.Cvolunteers.ThisstudyusestheSPSSstatisticsprogramandgathersresultsfromdescriptivestatistics,reliabilityanalysis,validityanalysisandregressionanalysis.Theresultsofthisstudywereasfollows：1.LeadershipStylyhassignificantpositiveeffectonIntentiontostay.2.JobsatisfactionhassignificantpositiveeffectonIntentiontostay.3.Organizationalcommitmenthassignificantpositiveeffectonintentiontostay
A study on the Business Models of Providing Free Anti-Virus Software Services Companies
No full text[[abstract]]摘要在網際網路發達後的時代，提供免費使用軟體商品是一種新的經營模式，如應用軟體、線上遊戲及APP等。本研究擬探討免費使用軟體如何從中獲利!本研究以Osterwalder九大要素的商業模式作為分析之架構，針對提供免費防毒軟體的三大公司之商業模式進行分析，分析結果顯示防毒軟體功能除了掃描、清除病毒，更需提供其他附加功能(PC效能提升、清除垃圾、加密管理等)吸引用戶。開始著重客戶導向，並利用社群功能了解用戶需求，開發符合使用者的功能。建立會員機制，協助市場擴展與產品行銷。三大公司的防毒軟體為永久免費，廠商依目標客層(家庭、進階付費及企業)提供簡易、進階及企業防毒商品價值主張，進而由廣告費、平台收入及軟體授權費獲取收益來源。研究得知免費行銷模式已是防毒市場的趨勢，在市場競爭下公司的優勢取決於產品品值(防毒效能、功能性、操作性)，有了良好品質才能吸引使用者，提高市場佔有率。關鍵詞：免費商業模式、商業模式圖、防毒軟體[[abstract]]ABSTRACTAstherapiddevelopmentandpopulationoftheInternet,TheITcompanysupplyafreesoftwareforusinghasbecomeanewmanagementmodel,suchassoftware,onlinegamesandApps.Thisstudyisgoingtoexplorehowtogetabenefitfromfreesoftware.ThisstudyappliedthenineelementsofOsterwalder(2012)asatooltoanalyzethebusinessmodelofthesethreefreeanti-viruscompanies.Theresuitofanalysisshowstheanti-virussoftwareprovidesscan,viruscleaningandalsootheradditionalfuntions.(suchliketheimprovementofPCefficacy,cleaningtrash,encryptionmanagement…andsoon.)toattractclients.TakingcareofCustomer-centricandusingCommunitywebsitetounderstandwhatclientsneedtodevelopusefulfunctionstofituesrs.Establishmembershiptohelpmarketingexpansionandstrategy.Theanti-virusofthesethreefreeanti-viruscompaniesarefreeforever,manufacturersaccordingtocustomersegments(family,industry)toapplysimple,updradeandindustryvalueandgetbenefitfromads,computingplatformincomeandlicensefeeforsoftware.Theresearchtellsfreemarketingmodeisatrend.Theadvantageofcompanyisuptothevalue(efficacy,funtionsandoperabilities)ofproductionunderthemarketcompetition.Superiorqualitytoattractusersandimprovemarketshare.Keywords:FreeBusinessModel,BusinessModelCanvas,AntivirusSoftwar
Integration of Digital Certificate Authorities in Different Web Browsers - the Case of Developing a Platform Concerning the Information of Personal Property
No full text[[abstract]]我國民意機構曾於104年建議行政院檢討我國政府e化服務，勿侷限民眾只能使用IE瀏覽器。尤有甚者，另有國會議員亦提及，政府多數網站或電子化系統只限於微軟的瀏覽器IE，但台灣逾5成民眾透過智慧手機上網，使用IE的機會減少，民眾如使用其他瀏覽器將無法瀏覽網站或使用服務，常造成民眾使用不便。有鑑於政府機關開發之網站或應用服務跨瀏覽器使用，常會發生跨瀏覽器相容性問題，國發會於105年召開政府網站或使用憑證認證之應用服務支援跨平台討論會議，因應資訊科技應用蓬勃發展，民眾瀏覽網站方式改變，政府機關網站須提供跨瀏覽器之服務，如Chrome、IE、Safari、Firefox等。為確保大多數使用者能正常使用網站資源，政府需對HTML、Scripts、CSS、Plugin等4大項政府網站常見跨瀏覽器相容性問題，研提解決方案，以利民眾使用政府的e化服務。本研究以高雄市政府之地政機關為例，配合行政院「電子化政府計畫」之第五階段計畫，將現有的政府資訊系統整合到網路，建立個人式服務平臺，提供單一登錄，促進地政查詢便民一站式服務。同時考量網路應用系統的安全性，亦需整合「公民數位憑證」（CitizenDigitalCertificate）證身分驗證機制，是以本研究應用「IsomorphicJavaScript」的JavaScript技術，在高雄市政府的協助下，整合不同瀏覽器為單一入口，以建立個人產權訊息服務平臺，其間結合電子簽章，開發為民眾服的「個人化資產查詢統」，具體實現網站跨瀏覽器、憑證跨平台及瀏覽器等要求。[[abstract]]Toenjoytheofficialservicesbythegovernmentagencies,usersmayusetheirfamiliarbrowserstoaccesstheGovernmentWebServicePlatform(GWSP)fordifferentservices.However,severalpopularbrowsersmaynotworktoaccesstherelatedofficialserviceswebsiteduetotheproblemofcompatibility.Inthepast,mostoftheofficialwebsitesweredesignedforthebrowserofInternetExplorer(IE)byMicrosoft.Recently,however,themostfrequently-usedbrowserinTaiwanistheoneproducedbyGooglenamedChromeandtheusageofIEwasfallingtothethirdplaceoftheusagebyusers.Tosolvetheinconvenienceofusingdifferentbrowserstoenjoythegovernmentalservices,theofficiale-servicesofdifferentgovernmentagenciesneedtobeintegratedforusersusingdifferentpopularbrowsers,suchasChrome,Firefox,IE,andSafari.TheintegratedworksofGWSPincludeunifiedaccessingwindowfordifferentbrowsersandrelatedinternetsecuritiesandidentifications,suchaselectronicsignature.Inthisstudy,theJavaScriptapplicationsofIsomorphicJavaScriptwereemployedtoestablishtheKaohsiungGovernmentalWebServicePlatformofPersonalAssetsfordifferentuserswithdifferentqualifiedbrowsers.Thecross-browsersgovernmentalservicesplatformbyKaohsiungCitycanmeettheneedsofdifferentuserswithdifferentbrowsersandhenceincreasethesatisfactionofusinggovernmentalwebsites