電阻中和法 的英文怎麼說
中文拼音 [diànzǔzhōnghéfǎ]
電阻中和法
英文
resistance neutralization method- 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...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 和 : 和動詞(在粉狀物中加液體攪拌或揉弄使有黏性) mix (powder) with water, etc. : 和點兒灰泥 prepare some plaster
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 電阻 : (物質阻礙電流通過的性質) resistance; electric resistance (電路中兩點間在一定壓力下決定電流強度...
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For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此,對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此,本文從測井地質的角度,針對當前裂縫性儲層測井地質解釋與評價的現狀,在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上,利用分形分維方法和技術,通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ ( fa )與m指數的理論推導,根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜,則其分維值d _ ( fa )越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵,提出了改進的基於盒維數的測井曲線網格覆蓋法,編程計算了裂縫性儲層段常規測井曲線(如聲波和電阻率曲線)上分形分維值及其m指數值,進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究,效果十分理想: 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪,採用儲層分維值分類技術統計分析這些參數變化的規律,並結合qx油田l區塊儲層類型經驗判別圖版,從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。The boracic acid was used to prepare flexible graphite and the effect of amount of boracic acid addition on expanded volume, oxidation resistance, specific resistance and tensile strength of the fexible graphite obtained were analysed
摘要初步探討了製造柔性石墨材料過程中加入添加劑硼酸的方法,並就硼酸的加入量對其膨脹倍數、抗氧化性、電阻率、抗拉強度等的影響進行了比較和分析。This paper presents a method that chopping wave is done by switch devices which consist of three - level resistance regulating module and intelligence power module ipm, and which realizes constant - current discharge of storage battery. to achieve the intelligence control of the drive protection and the discharge process of ipm, the paper designs circuit formed by igbt threshold drive pulse pwm signals. ipm fault - blocking protection circuit and microcomputer 80c196. the devices can accurately control the 0 ~ 150a discharge current and the discharge time of the storage battery and calculate the releasing power
實現蓄電池恆流放電過程智能控制是蓄電池放電裝置發展的必然趨,本文提出了一種通過三極電阻調節模塊和由智能功率模塊ipm為開關器件進行斬波從而實現蓄電池恆流放電的方法。為達到對ipm的驅動保護和放電過程的智能控制,文中設計了igbt門極驅動脈沖pwm信號形成電路和ipm故障封鎖保護電路及由單片機80c196為核心的微機控制器。本裝置能夠對蓄電池進行0 150a放電電流及放電時間的精確控制及釋放容量的計算。This paper selects dc double - arm bridge, uses the four - port connection to remove the contact and connection resistances and reduce the electromagnetism interfere. grounding grid conductors fault levels are established during a lot of emulational computations, simulative experiments
使用直流雙臂電橋,採用四端鈕連接法,可大大降低現場中電磁干擾及引線電阻和接觸電阻的誤差影響。The control system of furnace " s temperature has been widely used in every walk of life, as an important link of repair and manufacture of the electrical equipment such as electromotor transformer etc., soaking lacquer drying craft has some especial requests on drying crafto this article starts with the analysis of drying chamber " s configuration, analyzed its configuration limitation and control function limitation according to the factory " s situation and advances the conception of heated air drying circulation, in addition, this article adopts an intellectualize a / d module, a development sampling tuning - voltage circuit, and presents the method to measure online the insulation resistance of products in order to improve constantly products quality
而浸漆乾燥工藝作為電機、變壓器等電氣設備的修理、製造中的重要環節之一,對乾燥過程的質量要求有一定的特殊性。該文從乾燥爐的結構分析入手,聯繫到工廠的實際情況分析了結構功能缺陷和控制功能缺陷,提出了熱風循環乾燥的概念,同時,選擇了較為先進的a d板卡、熱電阻信號調理板等專業化智能卡,運用數字pid控制技術,構成了一個較有特色的計算機控制系統。此外,該文還從保證乾燥品質量的角度,採用智能化交流模塊和自製采樣調壓電路的方法,提出了在線檢測產修品的絕緣電阻的方法和手段,以確保企業產品質量不斷提高。We used occam ' s inversion method to inversion the 1 - d and 2d geo - electric model and have briefly discussed the approach and procedure. trial calculations of the theoretical show that the inversion converges stably and quickly but do n ' t depend on the original model
首先用occam方法對一維和二維地電模型反演做了研究,結果表明occam方法在電阻率成像中收斂迅速,迭代穩定。It detailed analyzes the characteristics of symmetric semi - space, layered telluric medium of transient electromagnetic methods, deduces apparent resistivity ( ps ) formulae of earlier, later and whole stage channels, it also analyzes and deduces the tem response effect of local conductive body in high resistance medium and its apparent resistivity formula, inquires into the causing reason, distinguishing method and the way of eliminating or reducing its effect of tem additional effects
第二章瞬變電磁法的理論基礎,較詳細地分析了均勻半空間、層狀大地瞬變電磁場的特徵,推導了早期、晚期及全期道視電阻率s公式;以及高阻圍巖中局部導電體的瞬變電磁響應和相應的s公式推導。We select ni / cr alloy resistor as element together with ceramic embedding hearth ; select small flat - and - disc heat - even hubby ceramic sample holder, select ni / cr & ni / si thermoelectric couple ( type k ) as thermoscope with threads 0. 5 mm in diameter which is installed in the middle of the holders symmetrically ; select aluminum silicate fire - retardant fiber as materials for heat preservation ; design some hardware, for example temperature controller & transporter, signal amplifier etc ; design controlling curve to heat stove ; and introduce the method of least squares nonlinear regression and subsection function to deal with data. in order to obtain the reasonable operation conditions and operation curve, we have also done many theory analysis and experiment discussions
通過理論和試驗探討,選用鎳鉻合金電阻絲作為加熱元件,配以陶瓷質埋入式爐膛;選用陶瓷質小尺寸扁平?圓盤均熱塊體型樣品支持器;選用0 . 5mm絲徑鎳鉻?鎳硅熱電偶( k )作為測溫元件;熱電偶對稱安置在樣品支持器容器的中部;選用硅酸鋁耐火纖維作保溫材料;合理選用和設計了溫度控制器、溫度變送器、信號放大電路等硬體;採用升溫曲線來控制爐膛供熱過程;採用最小二乘法非線性回歸與分段函數相結合的曲線模擬方法,進行圖形處理。In this dissertation, we firstly prove that any dirichlet problem is indeed equal to a voltages problem of networks. we give five solutions to dirichlet problem in two dimensions ; among these five solutions, we prove that the iteration solution and the solution of relaxations are exponential convergence, then we estimate their respective convergence rates ; secondly, we discuss random walks on general networks, prove that there is an one to one correspondence between networks and reversible ergodic markov chains ; thirdly, we give probabilistic interpretation of voltages for general networks : when a unit voltage is applied between a and b, making va = 1 and vb = 0, the voltage vx at any point x represents the probability that a walker starting from x will return to a before reaching b ; furthermore, we study the relationship between effective resistance and escape probability : starting at a, the probability that the walk reaches b before returning to a is the ratio of the effective conductance and the total conductance
本文證明了任何邊值的dirichlet問題都可轉化為求解電路電壓的問題:給出了計算平面格點上dirichlet問題的5種方法:證明了迭代法和松馳法都是指數收斂的,並分別給出收斂速度的估計;討論了一般電路上的隨機徘徊,驗證了電路與可逆的遍歷markov鏈是一一對應的;給出了電路電壓的概率解釋:當把1伏電壓加於a , b兩端,使得v _ a = 1 , v _ b = 0時,則x點的電壓v _ x表示對應的markov鏈中,從x出發,到達b之前到達a的概率;進一步地,給出了逃離概率與有效電阻之間的關系:從a出發,在到達b之前到達a的概率為有效傳導率與通過a的總傳導率之比。The rapid development of electronic commerce obliges us to join other countries in regulating electronic commerce contract activities and ensuring the security of electronic business. only by doing so can we reduce the blockage of the out - of - tune legal regulations towards electronic commerce. accelerate the combination between traditional laws and network age, and establish legal regulations about electronic commerce which accord with the traditional ones
電子商務在我國迅猛的發展勢頭讓我們不得不盡快加入到規范電子商務合同行為,確保電子交易安全的隊伍中來,以減少不合拍的法律規范對電子商務的影響和阻礙,加快傳統法律與網路時代的對接,實現建立與傳統民商事法律規范價值取向一致的電子商務法律規范。In acid copper sulphate solution, the nc copper has a more negative corrosion potential which is decreasing with reducing the grain size and diffusion impedance was only found in the as - prepared and as - annealed at 180 ? nc copper due to the diffusion within the pores and channels on the surface. both the tafel plots and eis study demonstrated that the nc copper exhibits a higher corrosion current and lower polarization resistance than its mc couterpart
在酸性硫酸銅溶液中,納米晶銅的腐蝕電位比微米晶銅要負,並且隨著晶粒尺寸的減小而降低。 eis研究表明,未退火的和180退火的納米樣品中發現了擴散阻抗,與表面孔洞和通道中的擴散有關。極化曲線外推法和電化學阻抗研究都表明納米晶銅的腐蝕電流比微米晶銅高,而極化電阻要低。Corrosion action slope cable used in cable - stayed bridge in different corrosion medium such as synthesis sea water, solution nacl and simulation acid rain are studied by electrochemical method, for example, linear polarization, tafel extrapolation and ac impedance method
對此,本論文以人造海水、 nacl溶液、模擬酸雨作為腐蝕介質,針對不同類型的鋼絞線,採用線性極化法、 tafel外推法和交流阻抗法等電化學方法研究斜拉橋拉索結構中鋼絞線在不同介質中的腐蝕行為。On the other side, measuring errors of grounding resistance and solution of current voltage electrodes reversing has been compared with horizontal two layers and vertical delaminating ( three layers soil )
比較分析了電流電壓極反向布置、在水平雙層和垂直分層或三層土壤結構中接地電阻測量的誤差和解決辦法。In this paper, the authors used such geophysical exploration methods as the high - precision geomagnetic method, the resistivity profiling method and the induced polarization method to synthetically study the exhausted areas of the archean sedimentary metamorphic iron mines in eastern hebei, built an effective geophysical exploration combination model for the exhausted areas, and summarized the serviceability and validity of various geophysical exploration methods in the exploration of exhausted areas under different geological settings
摘要應用高精度磁法、電阻率剖面法、激發化法等常規地球物理勘查方法對冀東地區太古宙沉積變質鐵礦采空區進行綜合研究,建立冀東鐵礦采空區有效的地球物理勘查組合模型,總結不同地質環境條件下各種地球物理勘查方法在冀東鐵礦采空區勘探中的適用性和有效性。Based on the research results on ground resistivity anisotropy degree, load unloading response ratio and day by day ratio of daily variation amplitude of geomagnetic vertical component, spatial correlation of absolute value of geomagnetic vertical component of beijing 21 hour and spatial correlation of daily variation of geomagnetic vertical component, we analyze the synthetical characteristics of these anomalies before the moderate strong earthquakes and gave the order of these anomalies and the synthetical correlation of these anomalies with the three elements
摘要在地電阻率各向異性、地磁垂直分量日變化幅度響應比和逐日比、地磁垂直分量北京時21點絕對值空間相關及地磁垂直分量日變化空間相關方法在江蘇地區的研究結果基礎上,綜合分析了這些方法提取的江蘇及周邊地區中強震異常的綜合特徵,給出了這些異常在震前出現的先後次序、地震三要素與這些異常的綜合關系。This product basis physics , bionics and the resistance induction of human body survey theory , and combination plenty of clinical practices develop development , it is attacked that this product not only has to bang, needle jiu , massage, fiery jar, scrape sha , the 6 big functions of traditional chinese medicine such as massage pattern and step - down, geng the comprehensive prescription patterns such as shoulder and waist leg beautiful body, and more have acupoint alone to seek, electricity jiu the functions such as therapy
該產品根據物理學、仿生學、人體電阻感應探測理論、生物電學、中醫針灸學、磁療共振學、中國古典醫學及現代微電子技術,並結合大量臨床實踐而研製開發的,該產品不但具有捶擊、針灸、推拿、火罐、刮痧、按摩等六大中醫功能模式和降壓、頸肩、腰腿美體等綜合處方模式,而更獨有穴位查找、電灸療法等功能。The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下:在人工氣候室內,根據不同覆冰絕緣子正、負極性下的閃絡試驗結果,得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓;正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應;覆冰較少時,合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法,對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明,直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低,且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。Because the former test results were stable and accurate, it was the nation ' s standard method and arbitration basis. the latter was convenient and fast, and therefore, it was commonly applied when the moisture content of the textile was determined in the department for purchasing the cotton fiber and the cotton - tested laboratory of the textile enterprise
其中,烘箱法因測試結果穩定、準確,是國家標準方法和仲裁依據;直流電阻測濕法方便快捷,在棉纖維收購部門和紡織企業棉檢室採用的棉花水分含量測定中得到了較普及的應用。The c - bn thin films were deposited on si substrates using the conventional radio - frequency ( rf ) sputtering system. the c - bn / si thin film heterojunctions have been fabricated with doping into n - type ( p - type ) semiconductor by implanting s ( be ) ions into them. i - v curves of bn / si heterojunctions were obtained by the high resistance meter, c - v curves of bn / si heterojunctions were obtained by the c - v meter
使用rf射頻濺射系統,在si襯底上沉積氮化硼薄膜,用離子注入的方法在制備好的bn薄膜中分別注入s和be ,成功的制備了bn / sin - p和bn / sip - p薄膜異質結,用高阻儀測得bn薄膜表面電阻率和bn / si薄膜異質結的i - v曲線,用c - v儀測得bn / si薄膜異質結的c - v曲線。There are several methods that are usually applied in engineering practice to examine structure stress : resistance variation method, barkhousen noise method, x radial method and ultrasonic method, etc. with comparasion to others, the ultrasonic method is acknowledged to be one of the most promising non - damaging inspection method in structural stress measurement filed for its fine sensitivity, veracity and good operation features
工程實踐中常用於應力檢測的方法有電阻應變法、巴克豪森法、 x射線法和超聲波法等。同其它檢測方法相比,超聲波應力檢測法具有靈敏度高、準確性好及可操作性強等優點,從而成為一種公認為最有前途的無損檢測方法。分享友人