壽命測量 的英文怎麼說
中文拼音 [shòumìngcèliáng]
壽命測量
英文
lifetime measurement-
First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed
本文介紹了微動損傷的機理和微動疲勞壽命的研究方法；利用ug軟體對燕尾榫聯接結構創建了參數化實體模型；基於ansys軟體平臺求解彈性接觸問題，獲得了榫聯接結構接觸應力及接觸狀態量的分佈；在已有微動疲勞壽命預測模型的基礎上，引入載荷頻率影響因子，對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測，與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。Testing of materials for semiconductor technology - measurement of carrier lifetime in silicon single crystals - recombination carrier lifetime at low injection by photoconductivity method
半導體工藝材料的試驗.硅單晶中載流子壽命的測量.用It combained potentiostat, potentiostatic circuit instrument and ac impedance measurement organticace, which can measure usual dynamic potentio - scan, experiment of dynamic potentio - scan, but also unique measurement of ac impedance measurement, also, this new type electrochemical workstation can carry on complex experiment, sucn as potentio / current scan ac impedance measurement procedural measurment, life - span - circle ac impedance measurement procedural measurement in order to fullfill the goal of track and analysis of parameter in various electrochemical conditions. this graduation thesis indicate the structure, function of the multifunct - ional electrochemical workstation
它把恆電位儀，恆電流儀和電化學交流阻抗分析儀有機地結合到一起，既可以做常規的基本測試如動電位掃描、動電流掃描試驗和電化學交流阻抗測量，也可以做基於這三種基本試驗的程式化試驗，如恆電流充電-電化學交流阻抗測量，電池壽命循環試驗-電化學交流阻抗測量試驗，從而完成多種狀態下電化學體系的參數跟蹤和分析。Aerostatic bearings have been applied widely on the ultra - precision in the aviation, aerospace and the main axes and the slide of the precision measuring instrument and inertial measuring apparatus because of high rotation accuracy, calm operation, low friction and long life - span etc. they can also be used in fields range from both high and low temperature to both high and low velocity, sometime even to environment full of radioelement
氣體靜壓軸承回轉精度高、運轉平穩、摩擦小、使用壽命長，可以在極高和極低的溫度、超低到超高的速度下，以及輻射環境中工作，因此在航空、航天領域以及精密測量和慣性測試設備上得到廣泛應用。Company was set up in 1997, as a high - tech enterprise with ability of reserch, development and manufacture, it was set up for limited company in 2006, and has passed iso9001 : 2000 quality adminis - tration system certification. company have professional works, excellent process equipments, perfect checkout apparatus, and produces all sorts of premanent magnetic chuch, electro magnetic chuch, rectiffication ` s manipulator and magnetic removal with adwantages of advanced designment, long longevity, big suction and small remanence. the quality has passed the certification of china quality test association and china quality indemnify center
公司成立於1997年，是一家集科研開發生產為一體的高科企業， 2006年組建為有限公司，並通過iso9001 : 2000質量體系認證，公司擁有專業的技術人員，精良的加工設備，完善的檢測儀器，所生產的各種永磁吸盤、電磁吸盤、整流控制器、退磁器等磁性工具，具有設計先進、壽命長、吸力大、剩磁小等特點，質量通過中國質量檢驗協會，中國質量保障中心認證。A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass
引力微子一種假想粒子，被假定為引力相互作用的量子，並被推測為具有無限長壽命、零電荷和零靜止質量The as - grown crystals were characterization by cutting and directional, x - ray diffraction, high resolution ohmmeter, ir transmission spectroscopy, visible light absorption spectroscopy, scan electronic microscopy ( sem ) and positron annihilate time technique ( pat ). the ir transmittance of czt single crystals grown with cd - riched is about 53 %, while 23 % with no cd riched
採用解理實驗、 x射線衍射、電學性能測試、紅外透過譜測試、可見光吸收譜測試、 sem蝕坑分析、探測器的試制等分析測試方法，並首次採用正電子湮沒壽命譜分析方法來研究czt單晶體的空位缺陷，綜合表徵了所生長的晶體的質量和性能。After generalizing the characteristic of modern equipment, the mission of equipment management and general situation of chinese equipment management, basied on two forms of equipment management - - - - - - practicality & value, the author combined quantitative & qualitative methods with example to analyze and discuss questions, especially the reasonable update & depreciation, accordingly achieving the optimization of the technical efficiency & economic benefit 0 one of emphases of the thesis is methods application of equipment reasonable update, that is starting with economic benefit to looking for reasonable using fixed number of year. the thesis used inferior - converted numeric method and rate equation which based on the theory square and combined with harbor loading machines & tugboat ' s actual facts, calculated the economic life of the same machine in order to make sure harbor machines " reasonable using fixed number of year. at the same time, the author made use of midpoint value regress method and stochastic trapeziform forecast method to calculate and analyze and gain the reasonable conclusion o the other emphases is questions of harbor equipment
本文概括介紹了現代設備的特點、設備管理的任務以及我國設備管理發展的概況后，作者從設備經濟管理的兩種形態? ?實物形態和價值形態出發，採取定量與定性相結合，以定量為主，結合實例進行分析與論述，對港口設備的合理更新與折舊問題進行了著重研究，從而實現設備的技術效能和經濟效益的最優化。本文研究的重點之一是設備合理更新的方法應用，即從經濟效益出發，來尋求設備的合理使用年限。本文結合港口裝卸機械和港作拖輪的實際，運用以正方形理論為基礎的低劣化數值法和費用方程兩種方法，計算了同一種機械設備的經濟壽命，從而確定港機合理的使用年限，同時，運用了中點值回歸法和隨機梯形預測法進行計算和分析，得到了合理的結論。Nuclear energy - measurement of radioactivity in the enviromment - air - radon 222 : methods for spot measurement of the alpha potential energy of short - life decay products of radon in the atmospheric environnement
核能.環境中放射性的測量.空氣.氡222 :大氣環境中氡的短壽命衰變產物的位能的現場測量方法It shows that the damage parameter is more suitable for composite multiaxial fatigue investigation than the traditional strain versus life curve and the predicted fatigue lives have a good agreement with the tested values
結果表明：與傳統的應力-壽命預測曲?相比較，新的疲勞損傷參量更適合於復合材料的多軸疲勞研究，計算結果與實驗結果吻合較好。The specific capacitance of singal electrode could reach 325f / g when the charge - discharge current was 2ma / cm2, and cycled over 5000 times
在2ma cm ~ 2的充放電電流下測得的單電極比容量可達325 . 21f g ，循環壽命達5000次。In the paper, the projectile pushing process on firing is analyzed. the quantitative computational model of the projectile velocity to gun bore wear is built. finally, taking the 120mm gun for example, the relation of projectile velocity to gun bore wear is calculated, the phenomenon of trajectory peak is analyzed
分析了射擊時彈丸擠進過程，建立了彈丸初速下降量與炮膛內膛磨損量計算模型，並以某火炮為實例計算了該炮彈丸初速下降量與炮膛內膛磨損量之間變化關系，分析了彈道峰現象，為身管壽命預測提供理論依據。Nuclear energy - measurement of radioactivity in the enviromment - air - radon 222 and its short - life decay products in the atmospheric environment : their origins and measuring methods
核能.環境中放射性的測量.空氣.在大氣環境中氡222和其短壽命衰變產物:它們的來源和測量方法Nuclear energy - measurement of environmental radioactivity - air - radon 222 : methods for integrated measurement of the alpha potential energy of short - life decay products of radon in the atmospheric environment
核能.環境中放射性的測量.空氣.氡222 :大氣環境中氡的短壽命衰變產物的位能的綜合測量方法Measuring of minority - carrier lifetime in silicon single crystal by photoconductive decay method
用光電導衰減法測量硅單晶中少數載流子的壽命The influence of y _ 2o _ 2s : eu phosphors fluorescent spectra, chroma and luminescence intensity is systematically studied when different concentration of europium is adulterated into different phosphors by means of xrd, fluorescent spectra analysis, time - basing spectra analysis, long - persistent fluorescent spectra analysis and so on ; the influence on y2c > 2s : eu phosphors structure, luminescence intensity and long - persistent curve is investigated when different concentration of mg24 " > ti4 " 1 " is adulterated into different phosphors, finding the most suited concentration of mg2 " * ti4 " 1 " ; base on the suited concentration of mg2 + > ti4 +, the influence rule on phosphors luminescence intensity and long - persistent curve with changing of eu + concentration is also studies. at the same time, by using rare - earths metals adulteration and theory of chroma synthesis, the possibility of sensitized buildup of phosphors and the synthesis of different color long - persistent phosphors is also researched
應用x射線粉末衍射（ xrd ） 、熒光光譜、時間分辨光譜及磷光體長余輝壽命測試等綜合實驗手段，較系統地研究了摻雜eu對熒光體y2o2s ： eu熒光體的發光光譜、色度和發光強度的影響；研究了不同mg ， ti含量對磷光體基質結構性能、發光強度與余輝曲線的影響及其適宜的摻雜濃度；基此，研究了在給定mg ， ti含量時，不同eu摻量對磷光體發光強度和余輝的影響規律；從稀土摻雜和色度合成原理分別探討了eu的發光敏化增強和制備不同光色長余輝磷光體的可能性。Radiation effects have been investigated up to - 30 dpa by the heavy ion irradiation simulation and positron annihilation lifetime techniques in the home - made modified 316l stainless steel and the commercially available stainless steel and tungsten, which are used as the beam window materials for the spallation neutron source in accelerator driven radioactive clean nuclear power system ( ads ). their radiation resistance properties are compared
本工作採用重離子輻照模擬和正電子湮沒壽命測量技術研究了加速器驅動潔凈能源系統（ ads ）散裂中子源束窗材料鎢、普通不銹鋼和國產改進型316l奧氏體不銹鋼在0 30dpa輻照劑量范圍的輻照效應，並對它們的抗輻照性能作了比較。After briefly describing the damage mechanism of electromigration, noises theories and signal processing methods, many kinds of experimental assessing methods of electromigration, such as the traditional mtf test, the test of changes of resistance and noise measurement, etc., are reviewed in this paper, and its research on the technology of noises detection has been studied emphatically
本論文在簡要介紹電遷移失效機理、噪聲理論和1 / f信號表徵方法的基礎上，對各種電遷移可靠性實驗評估方法（傳統的壽命測試法、電阻變化測量法、噪聲測量法）的特點作了分析對比。重點研究了vlsi金屬互連電遷移噪聲檢測技術。Bfs sensitively probes inter - electron correlation, relativistic and quantum electrodynamics corrections, so it can be used to test the basic many - body atomic theory or interpret spectra from space. the main contents of this dissertation are as follows : 1 the history and development of beam - foil spectroscopy are reviewed, and the characteristics of bfs are also described. the main applications in the spectroscopic studies and lifetime measurement of highly ionized ions are summarized
本文對高離化態cu和ge離子的光譜進行實驗研究，得到了一些新的實驗結果，論文的主要內容如下： 1回顧了束箔光譜法的發展歷史，介紹了束箔光譜法的優點；總結了束箔光譜法在高離化態原子能級研究，高離化態原子能級壽命測量等方面的主要用途。Global surveyor has far surpassed its design lifetime but scientists still had plenty more targets for the probes camera and science instruments
全球已遠遠超過其設計壽命測量，但仍有不少科學家更探頭指標的照相機和科學儀器分享友人