負電勢 的英文怎麼說
中文拼音 [fùdiànshì]
負電勢
英文
negative potential-
Estimation of intramuscular load of the upper limb in static postures and repetitive work by surface electromyography
手臂靜態姿勢和反復性操作負荷的肌電測定分析Moreover, we mensurate the reactances of the experimental motor by the way of direct joad method, and verify the vaiidity of " electromotive force method "
文章還運用直接負載法測定出樣機在不同負載下的電抗參數,驗證了「電勢法」的正確性。It has been proved that the cnt has good characteristic on the field emission. at the same time, people have noticed that the nanosized diamond has a low nea
碳納米管已經被證實具有良好的場發射特性,而金剛石超微粉也具有負電親和勢低的特點。But the grid voltage is different in many countries, so the research of an inverter, which can be used in many countries, will become a trend. a grid - connected inverter in grid - tied and off - grid modes has many advantages such as peak shaving to reduce the overall cost of power by generating during peak load hours in grid - tied mode, and standby generation to provide power during system outages until service can be restored in off - grid mode
由於世界各國電網電壓的規格繁多,能夠研製出適合於多個國家電網電壓規格的逆變器將是未來發展的一種趨勢;獨立與並網雙模式運行的逆變器由於具有緩解電網用電緊張、減少發電站的發電量、在電網斷電時對負載起不間斷供電的作用等優點,也成為現在研究的一個熱點。The combination of negative electron affinity ( nea ) photocathode and micro channel plate ( mcp ) brings the iii image intensifier. because of its high performance, the iii image intensifier has been developed rapidly and used widely in the short several decades after it had been found
負電子親和勢( nea )光電陰極和微通道板( mcp )的結合產生了三代像增強器,由於這類像增強器具有優良性能,在發現后的短短數十年中獲得了迅猛發展和廣泛應用。The other was to research new li - al solid solution alloy material and use it as anode in lithium battery. by the trace alloy component, aluminum, doping in lithium metal, it was hoped to improve the sei film stability of lithium / electrolyte interface and consequentially enhance the performances of lithium anode. meanwhile, different form the previously studied lial alloy that had very high content of aluminum, such alloy should not decrease the mass specific energy and electrochemical potential of lithium electrode
方法二:研究新型鋰鋁固溶體合金材料並將其應用於鋰二次電池中,通過微量合金成份鋁的摻雜提高鋰電極/電解質界面sei膜的穩定性,進而提高鋰負極性能;而該合金不會像以往高鋁含量的鋰鋁合金那樣降低鋰電極的質量比能量和電化學反應電勢。Though the land of the prefecture of liangshan only accounts for 6 of the all the country, water energy resource theoretical gross of the prefecture reaches about 10. 5 % of the theoretical storage of all the country and 13. 1 % of the developable hydropower potential of all the country. it is supposed that we exploited the all developable hydropower potential of the prefecture of liangshan, annual energy output should be over 297 billion kw. h, then the annual average power consumption should be 230 kw. h to every chinese, and according to the shadow electric price of ertan hydroelectric plant, three gorges hydropower station and other hydropower station, the annual energy output will bring 74, 000, 000, 000 yuan industries production value for the prefecture of liangshan annually
據樂觀預測,到2020年,全州用電負荷也僅在250 300萬千瓦之間,除開大型、巨型、超巨型水電站所開發的電力由國家統一購銷外,屆時中小水電站所開發的電力將形成800萬千瓦的供應能力,除在州內銷納300萬負荷外,至少還500萬千瓦的電力需要異地銷納,因此,將涼山中小型水電資源優勢轉化為經濟優勢,把水電資本轉化為經濟資本,推動涼山中小水電產業健康持續發展的關鍵在於不斷開拓水電營銷市場。In 2005, 61 physical and chemical parameters were measured and analysed in sediments. these included particle size, electrochemical potential as highly anoxic sediment with negative potential is related to organic pollution, chemical oxygen demand which indicates organic pollutants, total sulphide inorganic constituents, source of the unpleasant - smelling gas hydrogen sulphide, 15 metals and metalloids aluminium, arsenic, barium, boron, cadmium, chromium, copper, iron, lead, manganese, mercury, nickel, silver, vanadium and zinc, and trace toxic organics pahs and pcbs - 16 compounds and 18 congeners respectively
2005年,沉積物監測包括分析61種物理及化學參數,其中有粒子大小電化學勢有機污染促使沉積物缺氧,而讓電化學勢呈負數值化學需氧量顯示有機污染程度總硫化物無機物,是造成難聞氣體硫化氫的主因15種金屬及準金屬鋁砷鋇硼鎘鉻銅鐵鉛錳汞鎳銀釩及鋅和痕量毒性有機物多環芳烴及多氯聯苯分別為16種復合物及18種同質物。Based on the energy band characteristics of ordinary negative electron affinity emitter gaas, the design of lengthening the diffusion lengths of negative electron affinity emitter gaas was presented, and the special negative electron affinity emitter gaas was designed
摘要根據通常負電子親和勢二次電子發射材料砷化鎵的能級特點,提出延長負電子親和勢二次電子發射材料砷化鎵的逸出深度的理論設計,設計出了特殊的負電子親和勢二次電子發射材料砷化鎵。Based on the comparison and analysis of the secondary electron emission coefficient of two kinds of emitter gaas in theory, it is concluded that when primary electron energy is lower the deviation of secondary electron emission coefficient of two kinds of emitter gaas will become smaller, while when primary electron energy is higher the deviation will increase
通過對兩種負電子親和勢二次電子發射材料的二次電子發射系數的理論值進行比較和分析,得出:當原電子入射能量較低時,兩種材料的二次電子發射系數差值較小;當原電子入射能量較高時,兩種材料的二次電子發射系數差值較大,而且隨著原電子入射能量的升高,兩種材料的二次電子發射系數差值也在增大。According to the agreement, dvn shall provide to hisense the requisite production technology for the manufacturing of digital broadcasting receivers ( also known as " set top boxes " ) ; whilst hisense will utilize its extensive production and sales capability and its advantage as a top market player and r & d leader in consumer electronics area to manufacture and sell the set top boxes designed by dvn. not only will hisense be the key producer and sales force, it will also support the finance for all production cost
根據協議,天地數碼將向海信提供生產數碼電視廣播接收機(又稱機頂盒)所需之相關技術;海信則利用其消費電子工程開發優勢,以及強大的生產分銷能力,生產和銷售數碼天地數碼設計的機項盒,並負責生產所需之流動資金,以及產品之售後服務。On the base of model, considering the disturbance from the other 5 legs and variating load, we design an h - inf controller integrated with ip controller, which makes the system with the advantage of both h - inf control and ip control, and restrains the bad effect from variating disturbance. the simulation shows that this stradgy enhances the system robustness. in another solution, the coupling and load disturbances are regarded as the parameter variations of motor model, and the variation is observed, thus, the coupled dynamics of vamt is decoupled to 6 single motor systems
在建立了模型的基礎上,本文針對單滑塊控制系統要受到其它滑塊及負載擾動的影響,採用h _控制方法設計的h _控制器與傳統ip位置控制器結合,使得系統具有ip位置控制器和h _控制的雙重優勢,有效地抑制了變化擾動對位置輸出的影響,模擬結果表明該方法大大提高了系統的魯棒性;本文提出的另一種方案是將桿間的耦合作用和負載擾動看作電機參數變化,利用觀測器進行觀測,從而將耦合的機床動力學系統解耦成為6個獨立的電機動力學系統。Then a thorough analysis to the bias - magnetic of ppfc is made. the retraining effects of the main parameters ( include clamping capacitance c, output filter inductor lf, load r, the leakage inductor ls and source winding resistance r ) are studied under the conditions of different von, different ton and different winding parameters. then a conclusion can be drew, that the smaller lf and the bigger r are, the better the bias - magnetic is restrained and c has a best value to retrain the bias - magnetic
分別對管壓降不同,導通時間不同以及兩原邊繞組參數不一致(包括漏感、電阻、激磁電感三種情況)的情況下,主要參數(包括箝位電容c 、輸出濾波電感lf 、負載r 、原邊繞組漏感ls 、原邊繞組電阻r )對偏磁的抑制作用進行了模擬分析研究,得出lf越小, r越大時激磁磁勢偏移量ni越小, c在其他參數確定時對抑制偏磁有最優值等結論,為參數的優化設計提供了依據。The research of the new and high conductivity material of lithium ionic conductor is always an interesting issue in the material field due to its low potential, light weight and providing high cell voltage and energy density
由於鋰具有較負的電極電勢和較輕的重量,可以為電化學器件提供高的電池電壓和能量密度,所以鋰離子導體高電導率新材料的研究一直是材料研究領域倍受關注的課題之一。Active power filter ( apf ) is an advanced power electronic device , which can be used for compensating harmonics, reactive power and negative sequence current. compared with conventional compensation devices, active power filter has advantages of real - time and accuracy
有源電力濾波器是一種新型諧波、無功補償裝置,和傳統的補償裝置相比,有源電力濾波器具有很大的優勢:可以對諧波、無功以及負序電流實現實時、準確的補償。The negative trend for lightning is more obvious than that for thunderstorm
閃電的負趨勢比雷暴的負趨勢更明顯。For the minimum area, based on the principle of reducing ceasing times and ensuring that power is steady, this paper advances the relevant bidding strategy. for the middle area, based on the principle of considering the cost of rivals and exerting the cost advantage of self, this paper advances the relevant bidding strategy
對于最低容量段,基於盡量減少停機、保證機組負荷穩定原則提出相應報價策略;對于中間容量段,基於充分考慮對手電量成本、發揮自身成本優勢原則提出相應報價策略;對于最高容量段,基於捕捉市場中獲利的商機原則提出相應報價策略。The researching result is shown that an electron divided equally trend and an action of bond forming exist in brass atom and zinc atom in brass substtate. so, the electro - negativity equilibrium principle developed by sanderson et al, may be extend to the system such as brass under different conditions. the electro - negativity equilibrium was produced during the process from pure brass and pure zinc to brass - zinc alloy, and the difference of chemical properties between alloy and pure material is great
結果顯示黃銅中銅鋅原子間存在一定的電子「均分」趨勢,使銅鋅原子間存在一定的成鍵作用,可以將sanderson等人提出的「電負性均衡原理」有條件地推廣到黃銅這類合金體系中,正是這種銅鋅形成合金時所產生的電負性均衡,使得黃銅中的銅鋅與單質狀態下的銅鋅相比,在化學性質上發生了差異,且增強了黃銅的穩定性,限制了黃銅中的鋅在鍍液中滲出。On the basis of 3d modeling and virtual prototyping technology and energy saving transformation method for parameterized simulation moving beam typed oil suction pump, and using the eccentric gear reducer to replace the ordinary gear reducer to let the driving radius of eccentric gear be kept a variation of similar tendency with the load of crank in order to improve load property of the motor, thus raised the working efficiency of the entire oil suction pump and achieved the effect of energy saving
摘要基於三維建模和虛擬樣機技術,參數化模擬游梁式抽油機節能改造方法,用偏心齒輪減速器代替普通齒輪減速器,使偏心齒輪驅動半徑和曲柄負載保持同趨勢變化,以改善電機負載特性,提高整個抽油機的工作效率,達到了節能的效果。Based on thomas - fermi equation and analysis in the influence of electric field on inner potential field, boundary condition of inner potential field of thomas - fermi equation influenced by electric field was established for the first time. and it was concluded that with elevation of intensity of electric field, the influence of positive electric field on energy of atom is increased ; the influence of negative electric field on energy of atom is decreased firstly, then increased
基於thomas ? fermi方程,通過分析電場對原子內勢場的影響,首次建立電場作用下的tf方程的內勢場邊界條件,確定了原子的能量在正電場作用下隨著勢場強度升高而增加,在負電場作用下呈先降低后升高的趨勢。分享友人