等勢線 的英文怎麼說
中文拼音 [děngshìxiàn]
等勢線
英文
equal potential line-
If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g
如果通過激光冷卻能使原子速度降至很小甚至為零，光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處，其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小，因此，如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。The distribution of euphausia snperba in the prydz bay region was very patchy, its abundance was higher in the slope area ( the pelagic area between the isobaths 1000 m and 3000 m ) than the open sea area ( the pelagic area beyond the 3000 m isobath )
大磷蝦在普里茲灣海區的分佈呈斑塊狀。分佈趨勢是陸坡區（在1000和3000米等深線之間的海區）各站的豐度普遍大於深海區（大於3000米深度的海區）各站的豐度。But due to the difficulties of the theoretical calculation and the limitation of the technique of image display, only some two - dimensional graphs of electromagnetic field of a planar set of point charges or symmetrically and uniformly charged bodies, which ignores the boundary effect, are introduced in the present electromagnetics teaching materials, which brings much incovenience for the acquaintance of the electrostatic field
然而，由於受理論計算和圖象顯示技術等因素的限制，目前的電磁學教材中，通常只能給出平面分佈的點電荷系或具有較強對稱性、忽略邊界效應的帶電體的電力線和等勢線的二維平面圖，這給靜電場分佈的感性認識帶來了一定不便。This article through studying on the solution and description of the equipotential line and power line for the static field and electrostatic shielding partial contents, comprehended recent development in modern physics teaching, as well as problems
本文通過研究靜電場等勢線和電力線的求解與描述以及電偶極子的電荷禁閉，領悟到了現代物理教學的新發展，但同時也發現了物理教學中存在的一些問題。A method of plotting the isovalue line of implicit functions by computer is introduced, the comparison of our method with traditional method of intensity scaling is given. by using of our method, some examples of isopotential and interference in college physics are displayed
通過介紹有關隱函數等值線的計算機繪制方法，與傳統的物理圖形強度定標法作了比較.用此方法舉例模擬了大學物理課程內容中電荷等勢線和波的干涉圖象The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。Apart from using traditional graphs showing changes in water quality over time, the epd also uses colour contour maps as a powerful presentation tool
除了採用圖表顯示水質變化趨勢，環保署亦利用彩色等高線地圖列示數據的變化。Topmodel is based on the calculation of ln ( / tan # ) index and its distribution. in terms of a dem, a is the cumulative upslope area draining through per contour length to a pixel, which reflects the tendency of water to accumulate at any point in the catchment, tan # is the local slope angle of the cell, which reflects the tendency for gravitational forces to move that water downslide
Topmodel是以計算ln （ tan ）指數及其分佈為基礎的。對于柵格dem ，為上坡區域通過單位等高線長匯集到單元網格內的面積，反映徑流在流域中任一點的累積趨勢， tan為單元網格的坡度，反映重力使徑流順坡移動的趨勢。Supposed the two nonreversible deformations both obey the drucker law, the plastic loading function was established based on experimental data and the plastic work was used as hardening parameter supposed loess damage is mostly due to shear and the damage potential function has the same form of the equivalent plastic strain line in the plastic part, the damage potential function was gained by fitting the test data
假定兩類不可逆變形都服從drucker公設，根據試驗數據確定以塑性功為硬化參數的塑性加載函數。認為損傷主要由於剪切產生，假定損傷勢函數與塑性部分的塑性剪應變等值線具有相同的形式，通過試驗數據擬合得到損傷勢函數，然後根據損傷理論推導建立q1黃土的彈塑性損傷本構模型。With numerical calculations, the influences of device structure, material parameters and operating conditions on the distributions of the equipotential line, current density, carrier concentration, optical field and temperature profiles have been investigated, and the interactions between the correlative characteristics have been studied at the same time
通過對這些相互關聯的特性進行數值計算，分析了器件結構、材料參數和工作條件等對等勢線分佈、注入有源區的電流密度、有源區中的載流子濃度、光場強度以及溫度分佈的影響，並研究了這些特性之間的相互影響。4980 - gpm contour line
4980位勢米等高線5880 - gpm contour line
5880位勢米等高線5700 - gpm contour line
5700位勢米等高線5520 - gpm contour line
5520位勢米等高線5160 - gpm contour line
5160位勢米等高線5340 - gpm contour line
5340位勢米等高線Therefore you should cover shorts and buy without waiting for the option to make a higher top than a previous day or without waiting until the trend turns up by crossing a trend line top
所以你要短線出倉，馬上短線買進，等待行情走到比前期頂部更高的位置或者直到穿越趨勢線頂部。Comparatively, the molecular dynamic ( md ) can overcome these shortcomings and can be applied in the research of adsorption in the nanopores. this study mainly includes two parts, one is the study on adsorption equilibrium in cylindrical nanopores, and the other is that on the adsorption in carbon - nanotubes. in the first part, a new potential model is introduced, and the isotherms for different nano - pore diameters are obtained
對于不考慮固體壁面分子結構的圓柱形納米微孔的平衡吸附，建立了包括勢緩沖區在內的單元體模型，引入了表示整個微孔壁面與吸附質分子相互作用的新型壁面勢方程，並對3 - 5nm孔徑圓柱型微孔中的平衡吸附進行md模擬，得到了在不同汽相壓力下的分子位形圖譜及相應的吸附等溫線並對其進行了分析。With the rapid technical innovation and widespread use of internet, information technology based on using of computer is indispensable to our life. in security market, the application of information technology has been developed from lower stage to higher stage, the security software has been became an absolutely necessarily tools. " the stock transaction prognosticate analysis system which based on neural networks " was developed in this processing in the analysis and prediction system based on neural networks in stock, the parameter is determined as follow, 1. the height value of weight is given to the quota of the main tendency
「基於神經網路的股票交易分析預測系統」在對市場運行規律深刻總結與研究的基礎上，把大量歷史實時數據存儲到數據庫中，通過數據挖掘和神經網路技術對這些數據進行處理，對技術分析的指標參數進行簡化、優化，並以圖形、趨勢線等形式直觀地反映給投資者，使技術分析更加直觀、明了，依據這些技術指標來進行分析，衡量股票價格變動，預測股票價格的未來趨勢，選擇買賣股票的適當時機，更加便於操作，幫助投資者獲取相對穩定的收益。分享友人