電化學常數 的英文怎麼說
中文拼音 [diànhuàxuéchángshǔ]
電化學常數
英文
electricchemical constant-
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。Using the advanced technology by its head office ( newkey co., ltd. ), it produces various kinds of alumina black and white ceramic products. the component alumina ceramics, which are widely used in electron components, devices, electrical products, enjoy low loss of high frequency, high insulating strength, good specific volume resistance, small dielectric constant, high mechanical intensity and excellent airtightness and thermal and chemical stability
本公司根據目前市場需求,生產出各種型號的黑、白陶瓷產品,廣泛應用於電子、電工、化學工業、紡織工業、水暖、宇航、環保等諸多方面,系列產品有高頻損耗少,比體積電阻大,介電常數小,強度高,氣密性、熱穩定性、化學穩定性好等特點。In the second place, based on the asu of buggenum igcc plant in netherlands, both static and dynamical model for distillation tower of the asu are created and some valuable conclusions are gained as well. finally, a compartmental simplified model is created for distillation tower of the asu, in order to reduce the simulation time and increase the simulation efficiency. the new model will be helpful to the further simulation and on - line optimal control for the asu of the igcc plant
其次,本文以荷蘭buggenum電站的空分系統為原型,基於matlab建立了空分系統精餾塔的半圖形化動、靜態數學模型,並通過模擬,得出了一些有價值的結論:當空分系統的壓力變化時,氧氣產品濃度的響應時間常數為兩小時左右,說明空分系統是igcc電站最大延遲環節;而且雖然氧氣濃度最後會穩定在igcc電站所要求的范圍之內,但在過渡過程中會超出限制,這些都為igcc電站的安全運行及控制系統設計提供了有價值的信息。The experiments showed that, as compared to the conventional dyeing, the diffusion coefficients increased more with raising the bath voltage and temperature, indicating the dye uptake rate could be improved with electro - chemical dyeing
實驗表明:當槽電壓和溫度增加時,擴散系數均比常規染色增加,說明電化學染色可以增加染料的上染速率。This paper describes a method for measuring the ionization constants of reagents and raw materials and finished products of drugs by automatic titrator
本文介紹利用全自動滴定儀快速測定化學試劑、原料藥、成品藥的電離常數。Featured by wide band gap, high breakage electric field, high electron mobility, low dielectric constant, strong irradiation proof and excellent chemical stability, silicon carbide ( sic ), viewed as one of the most promising wide band gap semiconductors, is widely utilized in optoelectronic devices, high frequency and large power, high temperature electronic devices
被譽為最有潛力的寬禁帶半導體材料一sic ,因其具有禁帶寬度大、擊穿電場高、熱導率大、電子飽和漂移速度高、介電常數小、抗輻射能力強、良好的化學穩定性等優異的特性,被廣泛地應用於光電器件、高頻大功率、高溫電子器件。Tantalum oxide ( ta2o5 ) attracts more attentions because of its high dielectric constant, stable thermal and chemical properties. it might become the most promising candidate high constant dielectric thin films applied in industries
氧化鉭薄膜( ta2o5 )因為具有高介電常數和良好的熱、化學穩定性,成為最有希望獲得實際應用的介電膜。A linear relation can be found between response value of ultraviolet absorption detector, fluorescence detector, electrochemical detector and refractive index detector and quality of the object under test ; however, relation between response value of evaporative light - scattering detector and quality of the object under test is usually not a linear one, therefore, mathematical conversion of response value should be made before making calculation when necessary
紫外、熒光、電化學和示差折光檢測器的響應值與待測物的質量呈線性關系,但蒸發光散射檢測器響應值與待測物的質量通常並不呈線性關系,必要時需對響應值進行數學轉換后進行計算。Finite difference time - domain method is used to calculate the reflection for these probes and absorbing boundary condition is used to deal with the singularity in the axis of the coaxial - line in the simulation. by comparing the reflection of different probes, the best probe has been selected according to sensitive requirement. the influence of parameters : such as thickness of protective film, length of protruding inner conductor of the coaxial - line probe to the measurement has been studied
通過時域有限差分法進行數值模擬分析,並採用吸收邊界處理同軸線軸心奇異點,計算出各種探頭測量相同溶液的反射系數,根據其測量的靈敏度,選出最優設計;並通過分析所選探頭的各種設計參數,如薄膜厚度、內導體伸出長度等的變化對測量結果的影響,找出該探頭各參數的最佳范圍,使其具有高度靈敏性,以適用於測量化學反應溶液的介電常數。The charge and discharge performances of different composites were studied by the charge and discharge ; the structures of composites were characterized by sem ; the electrochemical properties of sulfur positive materials were characterized by cyclic voltammetry and eis. we studied the charge process, discharge process, charge - discharge efficiency, self heat, and self - discharge of lithium - sulfur system on system shuttle constant, conduct the mechanism of these processes and simply analyse them
以充放電技術研究了不同類別復合正極的充放電性能;以掃描電鏡技術觀測了復合正極的表面形貌;以循環伏安技術和交流阻抗技術研究了復合正極電極的電化學性能;並初步探討了鋰-硫電池體系中充電過程、放電過程、充放電效率、自熱和自放電等對體系飛梭常數的影響,推導了這些過程的機理並簡要的進行了分析。The effective permittivity can be used to describe the molecular polarization of the mixture in the reaction and consequently be used to calculate the transmission and absorption of microwave in the reaction mixture
由於等效介電系數常常被用來描述在化學反應中微波的吸收和傳輸情況,因而,化學反應中反應物的等效介電系數就成為微波化學研究的關鍵問題之一。Srtio _ 3 ( sto ) thin films exhibit a large electric field dependence of dielectric permittivity. the microwave surface resistance of yba2cu3o7 - x ( ybco ) is much lower than that of the normal conductor. the typical value of rs for ybco epitaxial thin film is smaller than 1 m
在低溫下, srtio _ 3 (簡寫為sto )薄膜具有強烈的非線性介電性質,即:介電常數隨外加直流電場變化而變化; yba2cu3o7 - x (簡寫為ybco )具有極低的微波表面電阻, rs ( 10ghz , 77k ) < 1m ,而且它們的晶體結構相似,晶格常數匹配以及化學性質相容。The immersion electrical heater is chiefly applied in the direct contact mode of fluid heating. it features fast heat exchange and high thermal efficiency. it has the varieties of water heater, oil heater and gas heater. its heating element power density, i. e. the power per unit of heating area of the heating element, is an important parameter of the electrical heating element, which has a direct bearing on the performance and working life. the working out of the value is a highly specialized problem, being under the influence of many factors ( media flow rate, tempt, physical and chemical properties and direction in which the medium flows past the element etc )
浸入式電加熱器主要用於直接對流體接觸加熱的場合,具有熱交換快,熱效率高等特點,分為水用加熱器、油用加熱器、氣體用加熱器,加熱元件的功率密度:即電加熱元件單位發熱面積上的功率,它是電加熱元件極重要的參數,直接影響加熱器的使用性能及使用壽命,它的取值是一個非常專業的問題,受到許多因素的影響(如介質的流速、溫度、物理和化學性質及介質流過加熱元件的方向等等) 。Piston ring is the important accessory of the engine and turning its contour is the key procedure to ensure the performance of piston ring it has great value in economy and society that we develop the nc machining system for outer circle of piston ring to manufacture the high quality piston ring and to replace the import machine according to piston ring contour data provlded by the cad system , it can turn the piston ring contour by controlling the displacement of servomechanism which is controlled by the angle of servo motor it uses the theories of velocity closed loop 、 dlsplacement closed loop and feed forward control to improve the control precision of system on the basis of theories of elastic mechanics and mathematics , the cad system can provide the accurate data required by the nc machine system according to the calculation model and the parameters of piston ring this system integrates the cad cam technology
系統根據活塞環cad系統生成的介面數據,通過伺服電機的轉角位置控制自主研製的高性能微位移進給機構產生給定的位移,以完成活塞環輪廓的仿型加工。系統採用速度、位置閉環控制及前饋控制理論,以提高系統的控制精度。活塞環cad系統以彈性力學和數學方法為基礎,根據常用的計算模型與活塞環參數自動生成數控加工系統所需的精確的介面數據,實現cad / cam一體化。As a measurement probe, open - ended coaxial line has been used for permittivity measurement for many years. however, the traditional open - ended coaxial line is not suitable for the permittivity measurement of microwave biochemistry and biological tissues due to the erosion of them
開口同軸線作為一種測量探頭被用於介電常數的測量已有很多年了,但是,傳統的同軸探頭在微波生物化學和生物組織的測量中遇到了困難。On the other hand, quite a number of practical systems with numerous dimensions may have some fast variables taking on singular impulse characteristic, such as electric power system, control system of rolling mill assembly, biochemical process, nuclear reactor, control system of airplane and rocket, and chemical diffused reaction, etc. so, it is important to study the problem of robust control of singular system i n the domain of control theory
一般這些不確定性並非不可度量的,通常能給出這些不確定性大小的某種約束,魯棒控制理論正是處理系統模型具有不確定性的有效方法。另一方面,在大多數維數很大的實際系統中,都有呈現奇異攝動特性的快變變量,如電力系統,冷軋機的工業控制系統,生物化學過程,核反應堆,飛機和火箭系統,以及化學擴散反應等。In this paper, we have done research on the effective permittivity of ellipsoid inclusions and spherical core - shell type inclusions, using the method of micromechanics theory ; sequentially optimized design of absorbing coating
本文利用微觀力學理論方法,對橢球形顆粒夾雜復合材料和球形核殼型顆粒夾雜復合材料的等效介電常數的預測進行了研究,並對吸波塗層進行了優化設計。In this paper, the preparing technological parameters, formation mechanism and structures of ( lithium ) vanadium oxides ( nanocrystalline vo2, amorphous v2o5, layered li1 + xv3o8 and inverse spinel linivo4 ) are systematically studied and discussed, and some properties of the products are measured as cathode materials for lithium ion batteries. the main results are as follows : ( 1 ) nanocrystalline vo2 has been successfully synthesized by a solution chemical reaction method in normal temperature and pressure. the procedure involves v2o5 reacts with koh to form k3vo3 in water and then k3vo3 is reduced with kbh4 around ph = 4 forming vo2 precipitation in aqueous
本文從實驗與理論分析相結合的角度對(鋰)釩氧化物(納米vo _ 2 、非晶態v _ 2o _ 5 、層狀li _ ( 1 + x ) v _ 3o _ 8及反尖晶石型linivo _ 4 )制備過程中工藝參數、結構和形成機理等方面進行了系統深入的研究,對(鋰)釩氧化物電性能進行了初步測試,取得的主要結果如下: ( 1 )成功的在常溫常壓下通過溶液化學反應直接制得具有納米結構的vo _ 2粉。Permittivity measurement has become increasingly important in microwave biochemistry and bio - electromagnetics in recent years
近年來,介電常數的測量已成為微波生物化學和生物電磁學領域的重要研究課題之一。A new structured open - ended coaxial line, which is suitable for measuring permittivity of erosive media, is presented. applications of the probe in permittivity measurement of chemical reactant and biological layered tissues are discussed
為此,本文設計了一種新型的、適于測量腐蝕性化學反應溶液及生物組織介電特性的開口同軸探頭,並就此種探頭在化學溶液介電常數和生物分層組織的介電特性參數測量方面的應用進行了探討。分享友人