電環反應 的英文怎麼說

中文拼音 [diànhuánfǎnyīng]
電環反應 英文
electrocyclic reaction
  • 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...
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 反 : Ⅰ名詞1 （方向相背） reverse side 2 （造反） rebellion 3 （指反革命、反動派） counterrevolutionari...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  1. Starch nanoparticles ( sn ) have been prepared with w / o starch microemulsion as microreader and epichlorohydrin as cross - linking agent. the factors affecting the preparation of sn have been investigated via the characterization of tem. the results show that the size and size distribution of sn are mainly controlled by the interfacial strength of microreactor, and the interfacial strength of microreactor is chiefly influenced by w value ( the molar ratio of water / surfactant ) and concentration of starch

    利用所得到的w o型澱粉微乳液作為微型反應器，以環氧氯丙烷為交聯劑制備出澱粉納米粒，並藉助透射電鏡的表徵研究了各制備因素的影響，研究結果表明：澱粉納米粒的粒徑及粒度分佈主要受微型反應器的界面強度控制，而影響界面強度的因素主要是r值（即水與表面活性劑的摩爾比值）及澱粉液濃度。
  2. In order to improve the electro - catalytic activity of platinum based catalyst to methanol oxidation, in this thesis, firstly prepare heteropoly acid modified pt / gc electrode with different concentration by cyclic voltammetry method, and then test the cyclic voltammetry curves individually in vitriolic and methanol solution. the study shows the best concentration for both phosphomolybdic acid and phosphotungstic acid is 1 10 ~ ( - 3 ) mol / l. and find the more heteropoly acid modified on electrode, the lower peak - up potential towards methanol because of the existence of oxygenous species

    為了改善鉑基催化劑氧化甲醇的催化活性，本論文首先通過循環伏安掃描法制備了不同濃度磷鉬酸和磷鎢酸修飾的pt / gc電極，通過研究pt / gc電極在修飾前後在硫酸溶液中及含甲醇的硫酸溶液中的循環伏安行為發現，磷鉬酸和磷鎢酸均能在ptru / c電極上發生氧化還原反應，而且雜多酸修飾濃度對pt / gc電極氧化甲醇的催化活性有很大影響。
  3. Like the amino group, the phenolic group powerfully activates aromatic rings toward electrophilie substitution, and in essentially the same way.

    對于親電取代反應，酚基基本上以同氨基一樣的方式使芳環強烈活化。
  4. In this paper, high concentration vanadium electrolyte has been prepared by electrolysis, graphite and graphite felt electrode also have been made, moreover, the electeodes have been activated, and based it, a lab - level vanadium battery has been manufactured. cyclic voltammetry, current step and invariable current charge / discharge method have been used to study the reactive mechanism of electrolysis, of vanadium electrode reaction and of electrode activation, also to investigate maiden charge process and electricity performance of vanadium battery. the influence of electrode activation and trace stibium ion, indium ion added into vanadium electrolyte has been discussed

    利用循環伏安法、恆電流階躍法、恆電流充放電循環等電化學方法，探討了電解法制備釩液流電解質的反應機理，考察了釩的電極反應、電極表面活化處理對釩的電極反應的影響，結合電極反應分析了活化的機理；還考察了釩電池初次充電活化過程及恆流充/放電循環的電性能；並且考察了添加銻離子、銦離子對釩電池電性能特別是析氫行為的影響。
  5. Perovskite - type complex oxides of la1 - xsrxga1 - ymgyo3 compositions are characteristic of superior intermediate temperature oxide - ion conductivity and chemical stability, which are expected to be used in solid oxide fuel cells, sensors, electrocatalysis, membrane separators and membrane reactors. they have highly promising prospects in energy, metallurgy, chemical engineering and environmental protection, etc. in this dissertation, improved embeded sintering method has been employed to prepare la0. 8sr0. 2ga1 - ymgyo3 ( lsgm ) electrolyte, and the contributing factors to preparation, microstructure characteristics, conduction properties and thermology properties of lsgm electrolyte have been investigated

    鈣鈦礦結構la _ （ 1 - x ） sr _ xga _ （ 1 - y ） mg _ yo _ 3復合氧化物具有優異的中溫離子導電特性和化學穩定性，作為固體電解質可用於固體氧化物燃料電池、傳感器、電催化、膜分離和膜反應器等，在能源、冶金、化工、環保等領域具有廣泛的應用前景。
  6. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  7. Syntheses of ? ? diimine and 2 - aminopyridine transiting metal complexes bearing 2, 6 - unsym - substituents on the aryl, and investigation on the steric and electronic effects of the unsym - subatituents on the catalytic property

    以2 ， 6位不同基團取代的苯胺與相應的二酮反應合成系列的? ?二亞胺和吡啶胺基過渡金屬配合物。主要考察芳環2 ， 6位基團立體位阻對催化性能的影響，同時也考慮基團的推拉電子效應。
  8. However according to the view of acoustics, click includes mixed frequencies, so further studies are necessary to investigate the physiological significance of amygdaloid modulating effect on the ascending auditory information at the cortical level. in this paper we firstly observe the characteristics of the acoustic response of neurons in a - i evoked by pure tone ; then investigate the influence of la stimulation on the acoustic response of these neurons and the physiological significance of such influence ; revea l the neural pathway mediating this effect with the neurohistological method ; and study the neurotransmitter and its receptor participating in this effect

    本文採用電生理學方法考察大鼠皮層a區神經元純音反應特徵，觀察杏仁外側核（ la ）對a區神經元聲反應的影響，運用神經組織學方法揭示介導這一影響的神經環路，採用多管微電極記錄結合微電泳技術的方法研究參與這種影響的神經遞質及受體，進一步探討了這種調制性影響的生理學意義。
  9. By using sterically hindered, electron - rich alkylphosphines and n - heterocyclic carbenes ( nhc ), this process has encompassed a broad range of substrates including ketones, aldehydes, esters, amides, malonates, nitrocompounds, nitriles and sulfones

    隨著大位阻、富電子烷基膦和氮雜環卡賓（ nhc ）為配體的催化體系的出現，該類反應的底物已從酮擴展到醛、酯、酰胺以及含酸性氫的化合物如丙二酸酯、硝基化合物、腈、碸等。
  10. In another trial, laboratory technicians bake the batteries in an oven to simulate the effects of a digital device left in a closed car on a sweltering day ? to check the reaction of the chemicals inside

    在另一場測試中，實驗室的技術員把電池放在烤箱里來模擬酷熱天氣下轎車里的設備環境，以此來檢查電池內部反應。
  11. A. the preparation of sliding ink for plastic printing. b., widely used in ht e preparation of double components epoxy paint and epoxy adhesive, the curing matter own fine mechanical and electrochemical property ; it is also applied in the manufacture of low temp

    B二聚酸與多元胺反應生成具有活性胺基的聚酰胺，廣泛應用於製造雙組份環氧油漆及環氧粘結劑，固化物具有良好的機械電化學等性能。
  12. Taking the vr step motor as example in the paper, systemic research is conducted about the principle of the subdividing drive, the non - linearity relationship between microstep and phase current, the method of velocity adjusting and the interrelated factors. the system is designed to realize the subdividing drive, velocity adjusting and position. especially, there are two innovations in this paper. one is the first introduction of pld device and isp technology to the design of phase sequencer, the other is the new measure and amend method of microstep

    本文以三相反應式步進電機為實例，對細分驅動原理、細分驅動的非線性、變細分調速以及相關影響因素進行系統的研究；實現細分驅動器、調速控制、定位控制和軟硬介面的設計。在此基礎上，本文對細分驅動環形分配器的設計和微步距測量修正進行了創新；提出將pld器件和isp技術引入到細分驅動環形分配器的設計思想和錯位測量和逼近修正法。
  13. To find dnaase in the earthworm the tissue extract of earthworm with different concentration reacted with rna, circular dna, linear dna for an hour at 37, then the producetion was detected by 1 % agrose gel. the tissue extract of earthworm, the tissue protein extract of earthworm and the tissue extract of earthworm without protein reacted with pbv220 - r - inf for an hour at 37, then the producetion was detected by 1 % agrose gel. 2

    雙胸蚓組織中dna酶的發現用不同濃度的雙胸蚓組織提取液與rna 、環狀dna及線狀dna在37反應1小時後用1的瓊脂糖凝膠電泳對其反應產物進行觀察；雙胸蚓組織粗提取液、雙胸蚓組織蛋白粗提取液及雙胸蚓組織去蛋白提取液分別與pbv220 - ? inf質粒37反應1小時後用1的瓊脂糖凝膠電泳對其反應產物進行觀察。
  14. Energy storage flywheel mounted in primary circulation pump of the reactor could supply coolant to the reactor core under power - off accident

    摘要核反應堆主循環泵上安裝儲能飛輪，能夠為反應堆在斷電事故下提供冷卻劑，避免堆芯損壞。
  15. The feedback of the output voltage is the major control loop. to achieve better frequency response and disturbance rejection of the input voltage, a input voltage feed - forward system is introduced in control loop. the duty - cycle of pwm applied at the gate of power mosfet is modulated by both input and output voltage

    該晶元採用的控制方式為電壓型pwm （脈沖寬度調制， pulsewidthmodulation ）控制方式，以輸出電壓反饋作為主要控制參量，同時為了提高晶元對輸入電壓擾動的響應速度，採用了輸入電壓前饋方法，將輸入電壓因素引入了反饋控制環中，通過對輸入輸出電壓的檢測，控制加在功率mos管柵極電壓上矩形脈沖的占空比，進而調節輸出電壓。
  16. The equipment made by us of titanium, stainless steel, aluminum or plastics, mainly include column condenser ( heat exchanger ) ; coil hear exchanger ; membrane evaporator ; constant boil tower ; reactor ; pressure filter, storage tank ; blower, centrifuge and ta series corrosion - resist titanium pump, as well as variety of metal constructional member. they are widely applied in the industries of petrochmical engineering, smelt, pharmacy, chlorinate alkali, salt preparation, as well as electric chemical plant

    我廠生產鈦材，不銹鋼等各種材質的化工設備，主要有風機，離心機，鈦泵，鈦閥，列管式冷凝器（換熱器） ；盤管式換熱器；薄膜蒸發器；塔器；反應器；貯存容器；面向石油化工，冶煉，制藥，氯堿，制鹽食品，造紙，環保等化學工業領域及電化行業。
  17. A significant suppression of phase transitions and lattice changes during cycling is occurred for ti - doped materials, and a decrease of interface reaction activity between the cathode and electrolyte is also demonstrated for ti - doped cathodes. as a result, the capacity losses, which are originated from structural changes and interface reactions during cycling, decrease and thereby cycling life increases for ti - doped materials

    摻欽后，電極材料的離子分佈形式發生變化，引起材料結構中的化學鍵產生變化，電極材料充放電過程中的結構相變得到有效抑制，結構變化相應減小，電極材料在高電位下的界面反應活性也減弱，從而減小了由結構變化和界面反應引起的容量損失，改善了電極材料的充放電循環性能。
  18. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  19. The obtained qcm sensor has sensitive response to the liquid density and can be expected as a density meter. composite films of p - cyclodextrin ( p - cd ) bound to the titanium dioxide nanoparticles were tightly coated on the surface of qcm

    研究發現在乾燥失水的過程中，滴加到tio2多孔膜表面的-環糊精分子與納米二氧化鈦發生縮水反應，形成網狀物質，牢固地結合在壓電晶體表面。
  20. Electron transfer mediators are involved to circumvent these disadvantages. the mediators include ferrocene and its derivatives, potassium hexacyanoferrate and tetrathiafulvalene. water - soluble dyes such as methylene blue, neutral red, toluidine blue and methyl viologen have also been used as mediators in solution because of their high electron transfer efficiency and low cost

    近年來，第二代電流型酶傳感器以一些電子媒介體如二茂鐵及其衍生物等代替氧，加強了酶與電極間的直接電子傳輸，起到了酶與電極間的電子開閉器作用，加速了電極反應，降低了環境干擾，克服了第一代電流型傳感器的上述缺點。
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