heat gradient 中文意思是什麼

heat gradient 解釋
熱力梯度
  • heat : n 1 熱；熱力；熱度；熱量。2 體溫；發燒。3 （氣候的）高溫，暑氣。4 【冶金】熔煉的爐次；裝爐量；一...
  • gradient : adj. 1. 傾斜的。2. 【動物；動物學】步行的，能步行的。n. 1. 〈英國〉（道路的）傾斜度，坡度，坡路。2. 【物理學】梯度，陡度，（溫度、氣壓等的）變化率，梯度變化曲線。
  1. Based on analysis of geologic foundation record about pingzhuang basin, a lot of sino - foreign geothermal geology record and investigation of field geology, measuring of ground temperature in person and geo - chemical analysis of ascension spring, gushing water of fault, the fact that the anomaly of geothermal gradient of pingzhuang basin, which is in region of low geothermal gradient, is caused by redistribution of conduction - oriented geothermal heat flow which is result from upheaval and depression of basin foundation bed is pointed out. after the field of ground temperature is simulated under the background of conduction - oriented geothermal heat flow by means of ansys, the characteristic of ground temperature distribution of top surface of basin foundation bed ( yixian team ) is revealed. the sound condition of transmissibility fault and feeding water source, which are imperative in formation of the low - medium temperature geothermal system of convective type, is possessed in pingzhuang basin

    通過對平莊盆地基礎地質資料、國內外大量地熱地質資料的分析和野外地質調查、礦井實測地溫以及上升泉、斷層涌水的地球化學分析等工作基礎上，指出地處低地溫梯度背景區的平莊盆地地溫梯度異常是由於盆地基底隆起和坳陷引起傳導型大地熱流再分配所致；運用州sys數值模擬了大地熱流向地表傳導背景下的盆地地溫場，從而揭示了盆地基底（義縣組）頂界面地溫分佈特徵；闡明了盆地具有形成中低溫對流型地熱系統所必需的導水斷裂、補給水源等的良好條件，中低溫對流型地熱系統是地熱勘查的主要對象；圈定了平莊盆地北部朝陽溝?駱駝營子地熱勘查遠景區。
  2. Also the theoretical basis of the method have been checked through simple deducing simulation and the influences of various physical parameters on the method have been studied. it is shown that the method is theoretically reliable for the production oil wells without very high production rate and is more suitable in field production for oil wells ( i ) in area with bigger geothermal gradient ; ( ii ) producing fluids ( oil and water ) with distinguish thermal characteristics ; ( iii ) producing oil with lower heat capacity or water with higher heat capacity ; ( iv ) with good surface measurement accuracy, as well as the method h as certain requirements on the accuracy of the temperature and flowmeter logs sensors

    就該產出剖面方法的理論基礎進行了簡單的正演模擬和可能影響該方法的各項物理參數進行了全面的考察，結果表明，該方法對于非高產的生產油井來說在理論上是可靠的，在實際生產中適合於（ 1 ） 、油井所在地區地溫梯度較大的油井； （ 2 ） 、油水熱特性差別較大的油井； （ 3 ） 、油比熱容值偏低水比熱容值偏高的油井； （ 4 ） 、井口計量精度較高的油井，並且對井溫測井和流量測井的傳感性精度有一定的要求。
  3. In the analysis of ecological relationship between vegetation and environment, we got 11 community types by combining twinspan with dca. the first axis of oca indicated the elevation level and heat gradient while the second axis indicated slope factor. the analysis shows that the resource of tourism in pangquan gully is abundant and the construction is rational

    第一軸基本上反映了各植物群落所在環境的海拔和熱量梯度，從左到右，海拔在體呈升高趨勢，熱量呈下降趨勢；第二軸基本反映了各植物群落所在的坡度梯度，從下到上呈良好的發展趨勢，從群落類型來看，各群落類型在排序圖上有規律地分佈，得出龐泉溝植被結構合理，分佈符合自然進化規律，龐泉溝生態旅遊資源未受到破壞，人為因素不明顯。
  4. Testing method for heat resistance under temperature gradient

    溫度梯度下耐熱性的測量方法
  5. Xanthophyli cycle has been widely concerned since the finding that it has the function in heat dissipation. with the trans - thylakoid ph gradient, zeaxanthin ( z ) together with antheraxanthin ( a ) can absorb excess energy from chlorophyll and release it as heat, thus protect the photosynthetic apparatus from photodamage by high light. violaxathin de - epoxidase ( vde ) is the key enzyme in xanthophylls cycle

    目前普遍認為葉黃素循環的色素定位於天線色素蛋白復合體上，在跨膜質子梯度（ ph ）形成后，玉米黃質（ z ）和環氧玉米黃質（ a ）能夠從葉綠素中吸收過多的激發能，並以熱能的形式耗散到體外，從而保護光合器官免受強光的破壞。
  6. The conclusions obtained as follows : firstly, the structure ' s free frequency is decreased by the reduction of the mechanical property of the material with the increasing temperature ; secondly the thermal stress produced by the temperature gradient may decrease or enlarge the structures natural frequency ; thirdly, the variety of natural frequency of the alloy structures effected by the heat effect apparently higher than that of the composite material structures

    最後，採用ansys程序分析了合金材料、復合材料的板、彈體結構的熱振動特性。在不同的熱載條件下，取得以下結論：升溫導致的材料機械性能下降都會降低結構固有頻率，而溫度梯度產生的熱應力可能降低也可能提高結構的固有頻率；金屬材料結構的固有頻率受溫度的影響要比復合材料結構的固有頻率受溫度的影響要明顯。
  7. Dropwise condensation heat transfer coefficient on the horizontal circular surface with radial gradient surface energy

    圓形徑向梯度表面能材料表面的凝結換熱系數
  8. Solving 2 - d inverse heat transfer problems with multi - variables in steady - state via conjugate gradient method based on second - order sensitivity

    基於二階敏度的共軛梯度法求解多宗量穩態傳熱反問題
  9. By means of c - language, the paper has developed a large - scale computer program, in which the combination of both the newton iteration and the gradient method is introduced to solve reynolds equation and film thickness equation, and the march method is used to solve the energy equation and heat interface equations, the satisfactory results are obtained

    本文採用c語言編制了大型計算機程序進行數值計算，數值計算中採用梯度-牛頓聯合法求解reynolds方程和油膜厚度方程，採用步進法求解能量方程和熱界面方程，獲得了滿意的數值結果。
  10. There are many advantages to heat by air condition system, but there are also many problems. the air distribution of air condition room is often designed according to the summer outdoor parameters. thus, in winter, the hot air will arise with the influence of buoyancy, which result in the decline of vertical temperature gradient and produce a successive of problems

    空調送風供暖有著很多的優點，但也出現了很多問題，由於空調房間的氣流組織一般是以夏季工況為設計工況，在冬季由於送風熱氣流在浮升力作用下上升，引起垂直溫度梯度的增加，並產生一系列的問題，致使空調房間冬季室內熱舒適性較差、能源利用效率較低。
  11. ( 5 ) based on 1 - d horizontal tests for coupled movement of soil water, salt and heat transfer, theoretical analyses on the influence of temperature gradient on soil water and salt movement were conducted

    西安理工大學博士學位論文（ 5 ）根據水平一維土壤水鹽熱耦合遷移試驗，分析了溫度勢梯度對水鹽運動影響的機理。
  12. The transition zone quite often shows a decrease in temperature gradient due to the ability of water to absorb up to a 1 / 3 more heat than rock

    由於水具有比巖石能多吸收三分之一熱量的能力，因此，這類有變化的地層通常都顯示出地溫梯度下降的趨勢。
  13. The experimental models not only can be introduced into low temperature waste - heat power generation, but also can be available in the geothermal, solar and ocean thermal gradient power generation

    該項研究的實驗模型不僅可以利用在低溫余熱發電系統，而且對地熱、太陽能及海洋溫差發電均有參考價值。
  14. Based on the results of previous researchers, the following instigations have been carried out in this paper : ( 1 ) employing a reasonable local resonance model which can accurately embody the heat - generation behavior due to resonance and vibration - heat mode in delaminated region, the dynamic response and temperature distribution in the small delamination region of a laminated beam are formulated. influence of the excitation frequency on the temperature gradient formation is analyzed numerically, and several meaningful conclusions are drawn. ( 2 ) for laminated plates with delaminations, due to complexity of the analytical solution, the finite element method is employed to analyze their temperature distributions and satisfactory results are also obtained

    本文在前人研究的基礎上，對此方法進行了進一步的探討，主要做了以下的工作： （ 1 ）選取合理的、能夠準確反映由共振而產生熱量的行為的局部響應模型，以及合理的振動熱模式，推導了一維層合梁小脫層區域的振動響應及梁的溫度分佈，並編製程序計算了該層合梁在激勵一段時間后的溫度分佈趨勢，分析了激勵頻率對溫度梯度形成的影響，得到了一些有意義的結論； （ 2 ）對於二維層合板，由於解析解的形式異常復雜，本文採用有限元計算軟體對其溫度分佈進行了分析，也得到了較為滿意的結果。
  15. Release of the heat of fusion is believed to alter the pressure gradient in such a way as to diminish the destructive winds near the storm center

    人們認為融解熱的釋放可以改變氣壓梯度，結果減小風暴中心附近的破壞性風力。
  16. 2 ) simulation of the heat transfer across the walls : there are two methods, finite thickness solid method and semi - infinite solid method, to simulate the heat transfer across the walls when the temperature gradient along the height and the width of the wall is ignored

    在火災環境下，忽略高度和寬度方向的溫度變化，採用一維熱傳導方程，建築、圍護結構適用兩種傳熱模型:有限厚度模型和半無限大厚度模型。
  17. If the soil water content is gradually added from very little value, the value of water content gradient resulted from temperature gradient first is lower, then bigger and finally lower. based on the test data, a linear regression equation about temperature and water content is got. after deciding the temperature and moisture distribution of the soil samples, the problem of coupled thermal and moisture is discussed, the temperature distributions show that the heat - conducting coefficient is related to the density and water content

    由溫度場的分佈可以得到：在溫度梯度的作用下，導熱系數是變化的，而導熱系數沿長度方向的變化，使得穩態溫度場沿長度方向成非線性分佈；密實度對溫度場分佈的影響是干密度越大導熱系數越大；初始含水量對溫度場分佈的影響是含水量增大，導熱系數也增大，達到最大值后，含水量增加導熱系數反而減少，含水量對溫度場的分佈有顯著的影響。
  18. According to heat load source of die cavity, temperature distribution gradient equations and heat flux equations and the peak value equations of temperature load at die cavity surface have been obtained with research of temperature distribution and transfer laws of die surface by unsteady heat transfer theory

    摘要根據鍛模型腔熱負荷來源，通過非穩態傳熱理論，分析研究了模具工作表面層的溫度分佈與傳遞規律，給出了型腔表面溫度分佈梯度和熱流密度公式，並給出了鍛模型腔表面的溫度負荷峰值的計算公式。
  19. The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return

    對于相對滑動的粗糙表面，因實際接觸面積小而導致接觸壓力很大，這樣使得熱流密度會很大，同時由於滑動時間很短，熱來不及傳導，最高溫度發生在摩擦表面，在垂直於摩擦面的方向有很大的溫度梯度，使得熱應力很大，且最大應力發生在表面，同時產生熱彈性變形，這種變形使得接觸區域內的壓力分佈發生變化，這種變化又反過來影響了接觸區域的溫度分佈。
  20. So improve the structure of bearing stand rib to resist stress and stain. change the radiating condition, reducing the temperature gradient, which can reduce the heat stress. in modal analysis, both body and shafting have the resonance vibration frequency in the work condition

    根據分析結果對結構提出了改進措施，增厚軸承支撐的加強筋，以提高其抵抗變形和應力的能力，同時對機體要外加冷卻散熱方式，降低熱應力的影響。
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