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electric potential 電位(勢)。

electric power

The stress induced electrical current changes with stress changing . the sensitivity of cfrc and plain concrete depends on their component , loading condition and the method of measurement . the study on mechano - electric effect of hardened cement paste provides a new method to make smart concrete structures . according to nonequilibrium thermodynamics , a mathematical model on the relatrionship between strain gradient and electric potential gradient is presented 研究表明,碳纖維混凝土(粗骨料)的電阻隨所受荷載的變化而變化,不同組成混凝土的力電機敏特性不同,力電機敏特性可望用于混凝土結構的應力診斷,從而為智能混凝土結構的實現開辟了新的途徑。

Unknown displacement and electric potential jumps in the integral equations are approximated with a product of fundamental density function and polynomials , in which the fundamental density function reflects singular behavior of electroelastic fields near the crack front and the polynomials can be reduced to a real constant under uniform loading 超奇異積分方程中的未知位移間斷和電勢間斷近似地表示為基本密度函數與多項式之積,其中基本密度函數反映了橢圓片狀裂紋前沿電彈性場的奇異性,而多項式在均布載荷作用下可用一個常數來表達。

Based on the theories of hybrid / mixed finite element method , the generalized energy functional including stress , mechanical displacement , electric displacement , electric field and electric potential is used , with the electric - potential relations and the constitutive equations of piezoelectric materials constrained , hybrid energy functional including mechanical displacement , electric potential and stress is gained . moreover , splitting in - plane components and transverse components , the mixed energy functional in which mechanical displacement , transverse stresses and electric potential as basic variables is derived . with the use of surface stress parameters of sub - elements , the continuity of transverse stress at interfaces between layers is obtained 在回顧雜交混合有限元理論的基礎上,從包括位移、應力、應變、電勢、電位移、電場強度六個未知量的廣義壓電材料能量泛函出發,通過約束電場強度?電勢關系、應力與應變及電場強度的關系,得到僅包括位移、電勢、應力三個未知量的雜交變分泛函,利用一般層合板的雜交混合變分原理,分離面內分量和橫向分量,導出以位移、橫向應力、電勢為未知量的壓電層合板的修正變分泛函,作為壓電層合板的雜交元列式的理論基礎。

By introducing the concept of equivalent electric charge , the image charge is well determined when the polarizing charge exists , solutions are provided for problems on electric image and electric potential in intersection of two different media , and the easy access of the solutions is exposited 摘要通過引入等效電荷的概念,較好地處理了有極化電荷存在時象電荷的確定,給出了兩種介質交界情況下的電象及電勢問題的求解,從而說明用其解決問題的方便之處。

Several calculation methods of electric potential are given for the conductor in electric fields to expand addition method , to discuss the problem of electric potential of complex conductor in electric fields , so we can solve the problem of conductor in many complex electric fields 摘要就靜電場中導體的電勢計算方法疊加法加以擴充,對靜電場中復雜的導體的電勢問題進行了分類討論,由此解決了很多復雜的靜電場中的導體的電勢問題。

Based on features of natural electric potential in oxidation and reduction zones , it is held that the natural electric field method may determine the front line of the interlayer oxidation zone , and can hence infer the general position of the interlayer oxidation zone sandstone - type uranium deposit 根據氧化帶與還原帶的自然電位變化特徵,利用自然電場法可以確定盆地層間氧化帶前鋒線,由此推測層間氧化帶砂巖型鈾礦大體空間位置。

Next , basing on discrete electric potential , plots the distributing figure of the electic potential and electic field , and analyzes relationship between the operational characteristics of static induction transistor and the structure parameter and bias voltage 其次依據求得的離散電位值,繪制相應的電位分布圖形和電場分布圖形。最后通過對圖形的分析,解析有機靜電感應三極管的工作特性與器件結構參數和所加偏壓的關系。

An understanding of electrical emission of concrete may lead to hi practical application such as nondestructive testing of concrete . ( s ) according to nonequilibrium thermodynamics , a mathematical model on the relationship between strain gradient and electric potential gradient is presented ( 5 )依據非平衡態熱力學建立了混凝土中應變梯度和電勢梯度、應變梯此漢理卜人學附士學位論文度和電場強度等力電關系的數學模型。

Based on the basic relations of mechanics , electrics and magnetics , the governing equations which are expressed in term of displacements of ux , uy and uz , electric potential and magnetic potential are derived for transversely isotropic magnetoelectroelastic medium 從橫觀各向同性磁電彈性力學運動方程、本構關系、電學和磁學方程出發,導出了用位移u _ x , u _ y , u _ z ,電勢和磁勢表示的磁電彈性介質的控制方程組。

Among the thesis , is it work up electric potential scan and exchange impedance law not to think boiler subject systematic solution water soluble miaow thiazole quinoline lose to lose performance slowly pharmaceutical slowly to adopt , and has explained the mechanism of losing slowly 在這篇論文中,采用動電位掃描和交流阻抗法評價了鍋爐主體系統溶液中水溶性咪唑啉緩蝕劑的緩蝕性能,并解釋了緩蝕機理。

This article analyzed the problems existed in national chlorine determination method in coal - high temperature combustion hydrolyzing - electric potential titration method ( gb / t3558 - 1996 ) and pointed out the main reasons of causing errors and , made improvement of the method 摘要分析了國標高溫燃燒水解電位滴定法測定媒中氯含量方法存在的問題,以及產生誤差的主要原因,并對該方法進行了改進。

When the conductor in electric fields reaches electric balance , the whole conductor is an equal potential body , which point ( plane ) can represent the entire conductor that is the key to calculating the electric potential of the conductor 由于處在靜電場中的導體達到靜電平衡后是一等勢體,導體中哪一點(面)的電勢能代表整個導體的電勢是求解導體電勢的關鍵。

Though membrane time arises to the antiseptic efficiency by way of reducing and corroding the density of the electric current and increasing the resistance of polarising to corroding the influence of the electric potential by oneself not big in advance 雖然預膜時間對自腐蝕電位的影響不大,但通過降低腐蝕電流密度和增大極化電阻的方式也起到了防腐功效。

For high voltage power system , difficulties in monitoring temperature online lie in isolating the electric potential of transmission signal and obtaining the electric working power of temperature detecting device of high voltage 對于中高壓電力系統,其溫度在線監測的困難在于高低壓間信號傳輸的電位隔離和高壓側溫度測量裝置工作電源的獲取。

6 . under the condition of cathodic protection , the distributing rules of electric field , electric potential and current density have relationships with the features of fault , such as figure and magnitude 研究了在陰極保護條件下涂層缺陷附近的電場、電勢以及電流密度的分布規律與缺陷形狀和大小的關系,建立了有限元計算模型。

Calciferous salt is ideal coagulants which decrease the electric potential . the experiment also showed a new method to treat the coal dressing wastewater by using calcium cinder carbide and pam together 通過對各種降低動電電位的混凝劑的測試,得出鈣鹽是較理想的混凝劑,并確定了電石渣與聚丙烯酰胺聯用治理煤泥水的最新方法。

By means of adding a certain a mount of appropriate complexing agent . the deposit electric potential of the two elements will be equal or approximation , then the coating containing o ? % of chromium is obtained 選擇合適的絡合劑,使鎳、鉻的析出電位相等或相接近,從而制備出含鉻0 5的鎳鉻合金鍍層。

Abstract : the electric potential , electricity and capacitance of the combinatory cylindrical surface sensor have been discussed by solving electric potential lapalace “ s equation of the sensor 文摘:通過求解電勢的拉普拉斯方程,討論組合圓柱面電容中的電勢、電荷和電容

This paper gives the calculations of the electric potential of complex symmetry conductors in electric fields and adopts new analysis method and skill to solve problems 就靜電場中具有對稱性的復雜導體電勢的計算采用了新的分析方法和解題技巧。