水動力梯度 的英文怎麼說
中文拼音 [shuǐdònglìtīdù]
水動力梯度
英文
hydrodynamic gradient-
Ultrafiltration is the movement of the liquid passing through the half film when the liquid is affected by the pressure grads, which can be described precisely as the molecule moves from the blood to the dialytic solution
液體在壓力梯度作用下通過半透膜的運動，稱為超濾，具體是指水份從血液側向透析液側移動。Through studying it is shown that in chagan sag, the geothermal gradients in the center are higher than those around the sag margin and major factors influencing the characteristics of temperature field distribution are the property of geotectogenesis and the differences in tectonic portion, lithology and underground water behaviour ; there are three types of mudstone compaction, i. e. normal compaction, undercompacition and overcomepaction ; there are two pressure systems in sandstone reservoirs, i. e. normal pressure and negative pressure systems and the strata ' s being uplifted and denuded is the key factor leading to the formation of the negative pressure system in reservoir ; and the distinctive temperature - pressure field characteristics in the sag are possessed of important petroleum geological significance in hydrocarbon source maturity, hydrocarbon generation, widening on oil and gas exploration domain and selecting exploration targets, etc
研究表明，查干凹陷中心的地溫梯度高於凹陷邊緣，大地構造性質及所處構造部位、巖性與地下水活動的差異是影響凹陷地溫場分佈特徵的主要因素；泥巖壓實存在正常壓實、欠壓實和過壓實三種類型，砂巖儲層段壓力類型可分為正常和負壓兩個系統，地層抬升剝蝕是導致儲層負壓系統形成的主導因素；凹陷獨特的溫壓場特徵對烴源巖成熟、油氣生成、油氣勘探領域的擴大及勘探方向的選擇等具有重要的油氣地質意義。This indicates a hydrodynamic condition with a very marked potentiometric gradient.
這說明水動力條件具有很明顯的位能梯度。When the moisture content is below fibre saturation point, the movement of absorbed water is subdivided into two parts : one is diffusion transfer due to the vapor pressure gradient, the other is moisture movement caused by the pressure fluctuation due to the variation of medium
在纖維飽和點以下時，木材內部吸著水的遷移可分為：水蒸汽壓力梯度下的擴散遷移和由於乾燥介質壓力的波動而引起的浮動壓力下的遷移兩個部分。In the summer stratified water column, the deeper the maximum depth of food distribution is, the stronger the dvm is performed ; the increase of the gradient of temperature in the thermocline layer can decrease the magnitude of the dvm and form the thermal barricade to the copepod ; the effects of the predation pressure on dvm is complex. on the one hand, the variations in the distribution depth of the predation pressure vs. the thermocline layer or the depth of the maximum food can modify the dvm patterns of the copepod. on the other hand, different predation pressure induces different dvm patterns
在夏季分層水體中，食物的最大分佈深度越大，動物向下遷移的幅度也越大；溫躍層的溫度梯度增大可以減小動物遷移的幅度，成為橈足類垂直遷移的溫度屏障；捕食壓力對垂直遷移的影響較復雜，一方面，捕食壓力的分佈深度與溫躍層或食物峰值的相對位置的變化能夠改變橈足類垂直遷移的模式，另一方面，捕食壓力強度不同，橈足類垂直遷移的幅度也不同，捕食壓力越大，遷移的幅度越大，當捕食壓力增加到一定程度，橈足類停止向上的遷移，大部分時間呆在水體深層，可能進入捕食壓力引起的「滯育」狀態。So, this paper that is based on the their own characteristics and their status, discusses the salary system ’ status and problems of the middle and small - scale iron and steel enterprise, and point out some new creative thoughts according to the compensation rules of the shuicheng iron & steel group company and nanjing iron & steel united co., ltd. in the principle which retaining and motivating the key staff is mainly and recruiting the employees from the external is supply, we should do seriously the job analyze and post appraisal, and adopt the market pay level which is the hybrid policy. in the additions, in the guidance of the hierarchy of the need theory, takes the deference measures to design the compensation structure according to the executive 、 the middle and low level manager 、 technicians and operative employee doing the contributions to the enterprise, adjusts the ratios of fixed wages and variable wages, uses the annual salary system for the executive, implementing the dual ladders to the managers and the technicians
為此，本篇論文主要是根據中小鋼鐵企業的自身特點，論述了中小鋼鐵企業的薪酬體系的現狀和存在的不足，並結合水城鋼鐵（集團）公司和南京鋼鐵聯合有限公司兩家鋼鐵企業的薪酬制度，提出了相應的創新思路，即在以留住、激勵關鍵人才為主，以外部招聘員工為輔的思想指導下，認真做好工作分析、崗位評價工作，採取混合政策的市場薪酬水平，同時，在需求層次理論的指導下，根據經營管理人員、一般管理人員、技術人員及操作人員對企業的貢獻不同採取了不同的薪酬結構設計，調整了特殊人群的固定工資和浮動工資的比例，對經營管理人員實行年薪制，對技術人員和管理人員實行「雙梯制」的職業發展通道，從而確保了薪酬制度的公平性、經濟性、激勵性，不同程度地鼓勵了企業特殊人才的工作積極性和主動性，優化了企業的制度，提高了企業的核心競爭力。The phase change of soil moisture and inflation of the frozen moisture c ause the reduction of hydraulic conductivity by reducing the area of flow section and the aperture of soil pore space, increasing the capillary resisting force to soil moisture, and decreasing the water potential gradient because of the increasing of movement distances of soil water
導水率減小是凍結土壤入滲能力減小的根本原因，而土壤中液態水的相變是導水率減小的根源所在。土壤水分的相變及其膨脹通過減小土壤水分過水斷面面積和孔隙孔徑，增大阻力和由於增長運動距離而減小水勢梯度使凍結土壤的導水率降低。Because of the highly variable topological and hydrodynamic condifitions at a strait, the distribution of sediment is complex, with a large gradient in grain size parameters
海峽地區由於地形和水動力條件多變，沉積物分佈的空間梯度大，有利於揭示不同搬運機制的作用和影響以及評價區域性和局部性的影響。Through the thermodynamic analysis for the sandstorm weather according to the simulated potential temperature, potential vorticity field, it is found that this sandstorm weather occurred in the condition of the atmospheric stratification stability, the area of the high potential temperature value and the potential temperature gradient have a good corresponding relationship with the surface cold air and cold front, so are the strength of potential vorticity and the different developing stage of sandstorm
利用輸出的位溫、位勢渦度場，對沙塵暴天氣進行熱動力條件分析，發現本次沙塵暴天氣發生在大氣層結穩定狀態下，位溫大值區及位溫梯度與地面暖低壓的強弱和移動有著很好的對應關系，位渦的水平分佈特徵和強弱變化對沙塵暴的出現時間和落區有一定的指示意義。The results show that moisture gradient is not the dominant driving force of moisture movement in the process
試驗分析表明，真空浮壓乾燥過程中，含水率梯度不是水分移動的主要驅動力。Based on this, the upper controlling index of soil water content is 80. 4 % and the days of waterlogged and salinization tolerance is 3. 2 days. the moisture and salinization movement mathematical model in the field under subdrainage condition is based on the assumption of neglecting the effects of horizontal hydraulic gradient, it can analogy the changes of soil water content and salinization which are changed with times and depth
論文在忽略水平方向水力梯度影響的假定下建立了排水條件下麥田水鹽運移模型，模擬土壤水鹽含量隨時間、空間的變化情況。經與實測資料對比發現，計算值與實測值較為接近，故該模型及參數的確定是合理的，可用於預測麥田水鹽的動態變化。When water in the soil or in the xylem is put under tension, due to the evaporation of water from a particular site ( which creates a water potential gradient in the direction of the evaporation ), capillarity enables water to overcome the cohesive forces within the water and move against gravity in response to the water potential gradient
當土壤中或木質部中的水受到張力作用時，由於特定部分水的蒸發（沿著蒸發方向形成水勢梯度） ，毛細現象可以使水克服水分子之間的內聚力並同時沿著水勢梯度逆著重力作用移動。The main factors affecting percolation in low permeability reservoirs include stress, threshold pressure gradient, slippage effect and water - blocking effect, which play various roles on percolation, but all will result in non - linear percolation in the end
影響低滲氣藏滲流特徵的主要因素有應力作用、啟動壓力梯度、滑脫效應和水鎖效應等因素，並且這些因素對滲流影響各有不同，但最終均引起低滲氣藏滲流的非線性化。The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model
非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。Experimental results show that this method is highly effective and efficient, and moreover it has no requirements on the differentiability and continuity of the objective function, and consequently does not need to perform complex matrix calculations, so this method is suitable for applications in identification of nonlinear hydrodynamics of complex system
結果表明，智能演算法簡單有效，對目標函數沒有可微性和連續性要求，避免了復雜的梯度矩陣計算，適合在復雜的非線性水動力系統辨識中應用。Based on the previous studies, the 2 - d laterally averaged temperature model for the temperature prediction of the huge and deep reservoir is developed in this paper. in the mean while, the movement mechanism of the turbulent buoyant flow in reservoir and the rule of the thermal stratification forming, developing and varying are probed. the model is then applied to the huge reservoir of xiluodu on jinshajiang river and the cascade power stations on yalongjiang river
本文在總結前人研究成果的基礎上，探討了水庫湍浮力流的運動機理，以及溫度分層的形成、發展和變化規律，建立了適用於大型深水庫水溫預測的立面二維水溫模型，並應用於超大型水庫? ?金沙江溪洛渡和雅礱江梯級電站各水庫的水溫預測，取得了一系列創新性研究成果。After the changes of the construction management system of lijiaxia hydropower station have been studied, the paper puts forward some thoughts on establishing and operating the rolling - development mechanism in the hydropower step constru ction in the upstream of yellow river according to the requirements of modern en terprise system and on the basis of making full use of the rich experience of th e construction management of lijiaxia hydropower station, which could accelerate the hydropower development and alleviate the power shortage so that it could ma ke great contribution to promote the economic development in the northeast regio n and to our socialism build
在研究了李家峽水電站建設管理體制的變革過程后，提出了按照現代企業制度要求，利用李家峽水電站工程建設管理的豐富經驗，建立、運作黃河上游水電梯級滾動開發機制的設想，以便加快開發速度，緩解電力嚴重不足的現象，振興西北經濟，為我國社會主義建設做出巨大的貢獻。At last with the prototype of the vertical - axis cycloid turbine, the optimal method and its mathematical model based on conjugate gradient method are presented in order to enhance the energy conversion coefficient. such optimal results as the energy conversion and the relation between attack angle and azimuth angle are given with particular analysis to sum up the reason of the improved performance of the turbine
最後以豎軸直葉擺線式水輪機為優化原型，提出了一種水輪機水動力性能的優化計算方法，建立了數學模型，運用共軛梯度法進行優化設計，以提高水輪機的能量利用率為目標，給出了優化的葉片攻角變化規律、能量利用率結果，探討了能量利用率提高的原因。If there are high temperature gradient between cool liner and hot liner, compressive plastic strain appear at that transient time, which lead to gas film wall bearing high tensile stress at high temperature. high tensile stress is one of main reasons which destroy combustor
分析表明，起動過程中由於熱傳導滯后引發的溫度梯度可以導致火焰筒氣膜唇邊在起動瞬間發生較大的壓縮塑性應變，進而使得該區域在工作時承受較高水平的拉伸應力，高的拉應力會導致火焰筒萌生裂紋。分享友人