電通密度 的英文怎麼說
中文拼音 [diàntōngmìdù]
電通密度
英文
electric flux density- 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...
- 通 : 通量詞(用於動作)
- 密 : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 電通 : electric flux電通量 electric flux; displacement flux; flux; 電通密度 electric [dielectric] flux density
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The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser
大功率半導體量子阱激光器是一種性能優越的發光器件,具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點,廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎,對器件的光學和電學性能有著重要的影響,生長不出優質的材料體系,獲得高性能的器件就無從談起,因此,材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。From the model, we can solve and gain the values and change orders of charging current, charging voltage, discharging current, discharging voltage and inductive current. after that, the electromagnetic fields can be created from two circuits " currents, and their magnetic rector and flux can be simulated from ansys solver
用ansys multiphysics模塊求解出充電電流、充電電壓、放電電流、放電電壓和感應電流以及這些參數隨時間變化的規律:然後利用兩個迴路的電流耦合出電磁場,並模擬出磁矢量、磁通密度。The electrical simulation compared the temperature and the current density distribution in copper lines with different width and barrier materials, the result indicating that the maximum temperature locates in the middle of the line and the 20 - degree obliquity is the most optimum one in the pore structure
在電學模擬過程中,對比了不同條寬和不同阻擋層材料下的互連線的溫度、電流密度分佈,以及不同通孔傾角下、不同阻擋層材料下的通孔的溫度、電流密度分佈。By comparing and analyzing the advantages and disadvantages of three kinds of voltage reference circuits, type of current density ratio compensation 、 weak inversion type and type of poly gate work function, a cascode structure of type of current density ratio compensation is chosen to form the core of voltage reference circuit designed in this paper. applying the negative feedback technology, an output buffer and multiply by - 2 - circuits are designed, which improve the current driving capability
然後通過比較和分析電流密度比補償型、弱反型工作型和多晶硅柵功函數差型三種帶隙電壓基準源電路結構的優缺點,確定了電流密度比補償型共源共柵結構作為本設計核心電路結構,運用負反饋技術設計了基準輸出緩沖電路、輸出電壓倍乘電路,改善了核心電路的帶負載能力和電流驅動能力。We also studied the dynamic characteristics of cf / cu ( c ) - cu composites, the results show that, by the method of graphite is coated with copper, the coefficient of friction and the wear rates remarkably decreased. with the increase of the copper coated carbon fiber content, the wear rates of cf / cu ( c ) - cu composites is notably decreased, while the coefficient of friction is increased. with the increase of electric current density, the wear rate of cf / cu ( c ) - cu composites is increased
研究發現,碳纖維鍍銅石墨-銅復合材料的電摩擦磨損性能與碳纖維含量存在一最佳值,當碳纖維含量為0 . 6時,其電摩擦磨損性能最好;對于不同電流密度下的電磨損性能的比較可以發現,通電磨損時的電摩擦系數要小於機械磨損時的摩擦系數,碳纖維鍍銅石墨-銅復合材料的電摩擦系數隨電流密度增大先減小而後增大,在電流密度為15a cm ~ 2時達到最小值;通電磨損量要遠大於機械磨損量,且隨著電流密度增大,磨損量增加。Analysis for magnetic field of srm is very complicated since the flux waveforms in different parts of the motor vary with motor phase, stator pole and rotor number, also with the winding connections, etc, which results in the srm losses, especially iron loss calculation difficult. the temperature analysis due to the losses has become a study hot spot
Sr電機鐵心的磁通波形不僅與電機的相數有關,還與定、轉子齒極數、定子繞組連接方式等密切相關,從而使得sr電機磁場分析很復雜,復雜的磁通密度波形導致電機損耗特別是鐵損的計算非常困難。電機的損耗又會引起電機的溫升,因此高性能的sr電機的熱分析也成為目前的研究熱點。In the third chapter, the influence of current density, solution concentration, erosion time and aging in ambient air on the pl spectra of ps suggests that peak would blue shift with current density increasing, and with erosion time and aging time prolonging ; with the increasing of solution concentration, peaks would red shift when solution concentration less than 1 : 1 but blue shift when solution concentration greater than 1 : 1. above phenomena can be explained by quantum confinement and light center model, but do not deny the action of si - h bonding and defect on the surface in the process of photoluminescence. at present, radiation mechanism is still one of the primary problems in the study of ps
在第z三章中;通過對比,分析了電流密度、陽極化時間、溶液濃度以及自i然氧化時間對多孔硅光致發光光譜的影響,認為在一定的范圍內,多i孔硅的發光峰位會隨電流密度的增大而藍移,要獲得較強的發光,需z要選擇合適的電流密度;隨著腐蝕時間的延長,多孔硅的發光峰位會i發生藍移;當f酸的濃度較小q : 1 )時,峰位隨濃度的增大表現為向i低能移動;而當f酸的濃度較大河山時,峰位隨濃度的增大則表現z為移向高能;多孔硅在空氣中自然氧化;其發光峰位發生藍移,而強i度隨放置時間的延長而降低。The calculations axe based on the equation of current motion with temperature and field - dependent critical current density, and the heat dissipation produced by flux motion in the normal state region and the superconducting state region
此計算基於電流運動方程,考慮到電流密度是溫度和磁場的函數,考慮到在正常區和超導區由磁通運動產生的熱耗散。Because of the limitation of experimental conditions we failed to form foam lead grid in the experiment. copper draw net is used as anode grid and it can improve to some extent the utilization of pam. due to human errors in the experiment we have not used the same discharge current density
在實驗中我們試圖通過鑄造法、電鍍法和還原法等一系列的實驗辦法製作泡沫鉛板柵,由於實驗條件的限制,沒能夠成功制得泡沫鉛,而在使用銅拉網作為正極板柵的時候,能夠使電池的正極活性物質利用率有提高,但由於實驗時候的失誤,沒能夠使用相同的放電電流密度進行放電,我們無法利用實驗數據比較出具體能提高的數字。According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography
第二章首先以xyz - 1型電化學抑制柱為例,分析了電化學抑制柱的抑制過程得出影響抑制容量的主要因素主要是抑制柱的電流效率和離子交換膜的極限電流密度,因此採用中等交換能力的離子交換樹脂作為抑制室的填料以提高電流效率,在通常情況下電流效率可達到90以上;在選用同種離子交換膜的前提下,可通過增加離子交換膜的有效面積達到提高極限電流的目的從而提高抑制柱的抑制容量,因此提出了多級抑制的概念並據此研製了共電極式高容量電化學抑制柱,該抑制柱最高可將流速為1 . 0ml / min ,濃度為200mmol / l電導率超過10000 s ? cm ~ ( - 1 )氫氧化鈉溶液抑制為電導率低至8 . 9 s ? cm ~ ( - 1 )的純水,並且具有穩定性高、分析結果準確等優點。In postnatal 12 and ismonths testes, the number of postive cells persistently increased. in 24 months testes, some spermatocytes also displayed strong enos immunoreactivity. from 3 weeks to 3 months, the permeability of microvascular was on the trend of increase while it was on the trend of decrease from 12 months to 24 months. s. biood - testis barrier : the basal lamina of endothelium cells developed from thin, broken and unequal electronic density to thick, full and high electronic density with aging
(巧1 ; 1 {性農i返_微1111扮通透性從3周齡至3月齡』 l 』增人趨勢, 12月齡到24月齡纖微l陽粉通透性: ,減小趨侖5 .血梁屏障:隨著增齡,毛細血憐內皮細胞的基膜由薄、斷續、電子密度不均逐漸發展為基脫垮、完招、 .毯子密度較高而均勻,厚度逐漸增加。And the subroutine is developed to add the periodic condition in the commercial 3d fem software. 3d electromagnetic field analysis is done to analyze the magnetic flux distribution in the tfpm. base on the field analysis, the mathematical model is given
採用簡化的三維電磁場計算方法對橫向磁通永磁電機內部磁通分佈進行了研究,計算了各部分的磁通密度分佈和漏磁通的走向,得到了電機的空載漏磁系數及空載反電動勢以及主要的漏磁通分量。Aluminum products with shing uniform surface was prepared by electrochemical graining process, including alkaline cleaning, 1 % naoh etching, electrochemical roughing in hcl, naoh treating and anodizing in 5 % h2so4 etc
摘要研究了鋁材無掛灰電化學砂化處理工藝。以鹽酸作為電解液的主成分,控制合適的電流密度和電解時間等工藝參數,通過6步處理,得到砂化均勻、粗糙度適中及光亮的砂面。The corrosion potential was the biggest and the corrosion current was the smallest one when the concentration of super - 3900 was 0. 5 % ; the corrosion potential was increased with the addition of mps - dl, but the smallest corrosion current is under 0. 01 % mps - dl. the rust time was the longest one when the concentration of super - 3900 was 0. 5 % as well as mps - dl was 0. 01 %. it was increased as a peak curve with al2o3 concentration in plating solution and ph value increased gradually with cathodic current density ; the corrosion weight
通過測量tafel曲線可知,在super - 3900濃度為0 . 5 % (相對于鍍液的體積百分含量)時獲得的鍍層腐蝕電位最正,腐蝕電流密度最小;隨著鍍液中mps - dl含量的增加,獲得的鍍層的腐蝕電位逐漸正移,在濃度為0 . 01 % (相對于鍍液的體積百分含量)時腐蝕電流密度最小。We have made three - dimension electric conduct grid by hand and we have successfully used it as anode grid in lead - acid battery. this kind of three - dimension electric conduct grid can improve the utilization of pam by 7 - 9 % in different discharge current density and can reduce the plate electrochemical impedance to one tenth of the normal plate. also this kind of grid can improve the marginal reaction current density in a certain degree
我們通過手工製作了三維導電體板柵,並成功的應用於電池的正極作為正極的板柵,這種三維導電體板柵能夠在各種不同的放電電流密度下提高正極活性物質利用率7 9 ,能夠使電池正極板的電化學阻抗降低到普通板柵的1 10左右,使正極板的極哈爾濱j _程大學碩十學位論文限反應電流密度略有所提高,但是這種板柵的耐腐蝕性能很不理想,使得所製作電池的壽命很短。However, the refractive index will increase with the increase of the flow ratio of sifu / nhs, slightly increase with the increase of substrate temperate, and decrease with the increase of rf power. by measuring the passivation results of hydrogen plasma and sinx thin film, we found an evident improvement of minor carrier lifetime in polycrystalline silicon after hydrogen plasma treatment, although it has little to do with the annealing temperature and time. the hydrogen contained in sinx thin film can enhance the carrier mobility of monocrystalline silicon, but after annealing at high temperature the mobility turns down
通過測試氫等離子體鈍化和氮化硅薄膜鈍化的效果,實驗還發現氫等離子體處理對多晶硅材料的少子壽命提高作用比較明顯,但是這種提高作用與處理溫度以浙江大學碩士學位論文王曉泉2003年5月及時間的關系不大;氨化硅薄膜中的氫對單晶硅的載流子遷移率提高有一定作用,但經過高溫處理后這種作用消失;氮化硅薄膜能提高單晶硅和多晶硅的少子壽命,具有表面鈍化和體鈍化的雙重作用;氫等離子體和氮化硅薄膜都能有效地提高單晶和多晶電池的短路電流密度,進而使電池效率有不同程度(絕對轉換效率0To make pic ( particl - in - cell ) simulations. to set up models of guns and magnetic field and simulate them in the vacuum and plasma, respectively. we found that plasma held back part of space charge effects and improved trajectory of electrons. but beam would oscillate and became instable as accretion of plasma density. by simulating again and again, we draw a conclusion magic could n ' t work when plasma density was more by far than beam electron density. at last a four - stage depressed collector was simulated
建立電子槍和聚焦系統模擬模型,分別在真空和填充等離子體條件下進行模擬。發現填充等離子體能補償部分空間電荷效應,改善電子束包絡軌跡,提高電子的流通率,但是隨著等離子體密度的增大,束電子會出現振蕩不穩定性,遺憾的是通過反復多次模擬發現本文所用粒子模擬的代表性軟體magic無法用於模擬等離子體密度遠高於束電子密度的情況。Recommended practice for instrumentation for magnetic flux density and electric field strength meters - 10hz to 3khz
10hz - 3khz磁通密度檢測儀表和電場強度計的推薦實施規程Firstly, srm magnetic field analysis is performed to get the flux density waveforms in motor core
本文首先對sr電機的磁場進行了有限元分析,得到了電機鐵心各點的磁通密度波形及變化規律。Based on the analysis of the magnetic circuit, the computation expressions of the magnetic force, magnetic flux density and inductance are derived
在磁路分析的基礎上,推導了磁力、磁通密度和電感的計算公式。分享友人