時間電流特性 的英文怎麼說
中文拼音 [shíjiāndiànliútèxìng]
時間電流特性
英文
time-current characteristics- 時 : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 特 : Ⅰ形容詞(特殊; 超出一般) particular; special; exceptional; unusual Ⅱ副詞1 (特別) especially; v...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
- 特性 : characteristic(s); character; performance; features; properties; behaviour; response; character...
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The characteristics of the field - aligned currents facs measured by isee 1 and 2 satellites during substorms are studied. these characteristics include the variations of facs with the interplanetary magnetic field, local time,
分析了由isee - 1和isee - 2飛船在亞暴期間觀測到的場向電流的特性,包括場向電流所伴隨的行星際磁場地方時與In order to obtain the most economic benefits, the paper utilized the theory of " homalographic characteristic " and " share alike compensation current characteristic " to build up the best compensation relation for " hour - current " curve applied to transformer substation and for " length - current " curve applied to distribution line
以獲得最大經濟效益為目標,利用「等面積特性」和「補償電流等分特性」理論。推導了應用於變電站的「時間?電流」曲線關系中存在的最佳補償關系,以及應用於配電線路的「長度?電流」曲線關系中存在的最佳補償關系,及補償后的經濟效益計算模型。Superior frequency characteristics shortest recovery time, realize the switching of the circuit, complete functions such as open and close, clip wave, wave detector, high - frequency rectifier, logic control, which fit for all kinds of digital circuits and analog circuits
具有良好的高頻開關特性反向恢復時間短,可實現對電路開和關的控制功能,可完成開關限幅檢波高頻整流邏輯控制等功能,適用於各類數位電路類比電路。Due to the importance of the accuracy of the time - domain impedance matrix elements, the techniques by which treating of the singular integrals and near singular integrals arose from the tdie - mom solving process are analyzed in detail, and these techniques are utilized to solve the tdie. in the end, using triangle patches discretizing arbitrarily 3 - d dielectric objects and metal - nonmetal composite objects surface and utilizing spatial rwg and temporal triangular bases, the tdie are solved by mot algorithm
最後,分別對三維介質目標、金屬非金屬組合目標散射體表面用三角貼片離散,並在空間上採用rwg基函數,在時間上採用三角型時間基函數、利用阻抗元素的精確演算法計算出阻抗矩陣,再運用mot法分別求解了介質體目標,金屬非金屬組合目標的時域積分方程,並分析了金屬非金屬組合目標分界面上的等效電流與等效磁流的特性。The researching results indicate the reverse recovery characteristics of the device are much improved : the reverse recovery time is remarkably shorted, the peak reverse current is notably reduced and the soft factor s is also increased in various degrees but not notable changed in forward drop when introducing the two kinds of novel structure
結果表明,採用新結構后,反向恢復特性大大改善,恢復時間明顯縮短,軟度因子s顯著提高,反向峰值電流也有不同程度的降低,其綜合性能遠遠高於si同類型結構及常規p ~ + ( sige ) - n ~ - - n ~ +二極體。Low error to the time - current curse, high reliability
時間一電流特性曲線誤差小,產品可靠性高。The presented thesis studies the gas discharge of lab6 electrodes, the paper analyses the impacts of gas press and electrodes separation on the ignition voltage and voltage drop, and makes low gas pressure, lower than 10pa, discharge switch tubes, with gas of helium and nitrogen, electrodes gaps of 5mm. the paper studies the tubes ’ discharge performances, and the impacts of discharge process on the electrodes
分析直流工作條件下,以氬氣、氮氣、氦氣為工作氣體時,氣體的壓強、極間距對著火電壓和管壓降的影響,並製作低氣壓( < 10pa )下的氣體放電開關管(放電氣體為氮氣和氦氣,極間距為5mm ) ,研究其在直流和脈沖下的放電特性,以及放電過程對電極的影響。A mixture of three amino acids ( arg, gly, glu ) labeled with fluorescein isothiocyanate ( fitc ) was separated in pdms microfluidic chip, the separation voltage is 200v / cm, the separation time is less than 120 seconds ; according to ccd fluorescence images, two distinct physical processes - stacking and destacking during sample injection were studied qualitatively ; rhodamine b, a kind of temperature - dependent fluorescence dye, was used as probe to develop a temperature - fluorescence intensity equation, then temperature - color map in microchannels was constructed, and temperature trait in microchannels on the pdms microfluidic chip was analysed. according to the results, we conclude that the electric field applied to the pdms microfluidic chip should not exceed 400v / cm
利用pdms微流控晶元對fitc標記的精氨酸、甘氨酸、谷氨酸混合物進行了電泳分離,分離電壓為200v cm ,分離時間不到120秒;通過拍到的熒光顯微圖像對電泳注樣過程中復雜的樣品分子積聚與解聚現象作定性的分析;以熒光染料rhodamineb為溫度熒光探針,建立了pdms微流控晶元上的溫度-熒光強度的關系公式,並利用matlab圖像處理工具箱構建出微流體溝道內的溫度色圖,對pdms微流控晶元的微流道溫度特性進行了分析,根據實驗結果,我們認為對于pdms微流控晶元來說,在進行需要外加電場作用的試驗時,外加電場不應超過400v cm 。The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different
其中,並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合程度,改善hvdc的電氣負阻尼特性,從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險性,此時系統的整體電氣阻尼特性由hvdc的性質決定;但若交流線路中存在串聯補償電容,則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩,逆變站附近機組同樣存在發生次同步振蕩的可能性,此時系統的整體阻尼特性由串聯補償電容的性質決定。The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level
本論文作者通過模擬測試,驗證了課題研究的理論設想,並設計製作了具有低陽極發射效率結構的高壓功率frd ,利用局域鉑摻雜和電子輻照相結合的壽命控制方式,實現器件反向恢復時間的極大減小,並且反向漏電流、軟度因子、正向壓降等關鍵參數也較理想,且具有極佳的漏電溫度特性,達到器件綜合性能的優良折衷,達到國際先進水平。( 2 ) in this paper, the author summarized the working principle, the superiority and the limitations of a few main kinds of classical sprinkler systems ; put emphasis on the importance of a few key points which is relevant to the function of the system, such as the choosing of sprinkler and it ' s fixing, the automatic checking function of water pump, the layout of alarm valve, especially the choosing of sprinkler and it ' s fixing ; looked through the feasibility of which we used water instead of gas by water mist especially finely divided water mist fire - extinguishing technique
展望了水噴霧技術特別是細水霧技術進行以水代氣滅火的可行性。 ( 3 )針對工程設計中最復雜,工作量最大的部分-系統水力計算部分,在規范的基礎上,基於excel電子表格,提出了經濟流速的范圍,提供了一套行之有效的設計計算方法,同時,對屋頂水箱和增壓泵的設置這一難以解決的問題發表了見解,既確保了自動噴水滅火系統初期快速滅火、控火的性能,又節省了大量的設計工作時間。And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion
論文首先描述了數字電視地面廣播的需求條件,技術難點和目前存在的問題,並重點分析了dvb - t系統結構流程,核心技術及系統通道特性和參數,該系統採用了cofdm (編碼正交頻分多路復用) ,大量導頻信號插入和保護間隔技術等核心技術,使之能抵抗高電平( 0db ) ,長延時的靜態和動態多徑失真,有利於數字和模擬電視的混合傳輸,它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。The linear time perturbation theory is used in this paper, the effects of rotary flow, axial flow and both of them to the arc stability are discussed respectively. the corresponding equations and the boundary conditions are deduced
本文採用與時間有關的線性微擾理論,分別討論了旋轉氣流、縱向氣流的作用,以及它們共同的作用下電弧螺旋不穩定性的特徵。Seed, rated current is 6 - 200a, see below sketch
件,額定電流均為6 - 200a ,弧前時間-電流特性曲So it is very important to investigate the inverse time characteristic of microprocessor distance protection. this paper emulates all kinds of faults of transmission lines by using emtp, and gets relative current and voltage sample values. then many distance protection thoughts and algorithms are adopted to compare each inverse time characteristic, better arithmetic and set thoughts are got
本論文應用emtp進行輸電線路各種故障情況的模擬,采樣取得保護相關的電壓、電流數據;採用各種距離保護思想、演算法,採用c語言進行計算,比較各自的時限特性,得出反時限特性比較好的演算法及其整定思路;對于各種故障情況,應用相關整定思路進行離線計算,得出各種原理的時間距離特性。Additions of carbon for improved slag resistance. spinel formation improves hot strength, slag resistance and brick joint erosion. 3 repairing material for bof uses fused magnesia or sintered magnesia as the main raw material and after modifid pitch and special additives are added, it has the following characteristcs than other conventional converter pitch temperature, shorter sintering time, longer service life and less pollution. it is mainly used for repairing converter working face, also for tapping side, tapping hole and bottom
3 ,轉爐大面補料是採用電熔鎂砂或燒結鎂砂為主要原料,通過加入改性瀝青和特種添加劑使它和傳統瀝青補爐料相比具有高溫附著性好燒結時間短流動性好使用壽命長污染小等特點,主要用於修補轉爐迎鋼面通常稱「大面」也可以用於修補出鋼側,出鋼口及爐底等部位。According to the actuality of the present research on ct, this paper introduces the measurement principle of rogowski coil and analyzes the factor that influence the precision of measurement, we bring forward a new design scheme based on the rogowski coil
本文首先介紹了國內外電流互感器發展現狀,重點對rogowski線圈測量原理進行分析,研究了線圈的穩態測量誤差以及幅頻特性、相頻特性、暫態時間響應特性,論證了羅氏線圈作為傳感器單元所具有的優良特性。So, with the exception of the later sylvania 12ax7as, all these tubeshave essentially the same characteristics - the i vs v curves
所以,除了問世時間稍後的喜萬年12ax7a ,所有的這些膽管都具備基本一致的電氣特性- -屏壓、流曲線。Since the concept of superlattice was proposed, vertical transport in superlattice has been investigated widely. the electric field domains and current self - oscillations which result from sequential resonant tunneling between different subbands of the superlattice are very significant phenomena. such kind of oscillation can be uesd to make tunable microwave oscillaors. in this thesis, low temperature transport problem, especially the formation of field domain and the condition of current self - oscillations in doped gaas / alas superlattice with weak coupling are investigated thoroughly and also by combining the macroscopic model with the microscopic one., the voltage - current characteristic and the current oscillation are simulated. the calculated result is nearly consistent with the experimental data
由超晶格中子能級之間的順序多阱共振隧穿引起的電場疇及電流自維持振蕩現象是其中的一個非常有意義的分支,該現象可用來製作電壓調諧微波振蕩器。本論文對弱耦合摻雜gaaa alas超晶格中的縱向輸運特別是針對低溫下的場疇的形成和固定偏壓下電流自維持振蕩產生的條件進行了深入的探討,並結合宏觀模型和微觀模型對超晶格在時變電壓作用下的電壓-電流特性以及固定偏壓作用下的電流特性進行了模擬計算。Based on introducing the mathematical principles, time spectrum characteristics and equivalent electric current ring properties of several typical models, the author has put forward a technique for rapid interpretation of data obtained by the transient electromagnetic method
摘要通過介紹幾種典型模型的數理原理、時間譜特性和等效電流環性質,提出了一套瞬變電磁法成果資料的快捷解釋方法。分享友人