熱不對稱 的英文怎麼說
中文拼音 [rèbùduìchèn]
熱不對稱
英文
thermal asymmetry-
The simulation results suggest that, at the end of the scanning line, the dissymmetric temperature field and the great temperature gradient result in the balling phenomenon and great thermal stress, which could lead to the destruction of the sintering samples in this region. because of the coupling effect between scanning lines, the balling phenomenon is increased as the increase of the scanning lines, thus the over short scanning lines should be avoided in the sintering process. different scanning strategies have significant influence on the sintering
模擬結果表明,掃描端點溫度場的不對稱及較大的溫度梯度造成了端點球化現象,並在端點處產生較大的熱應力,使燒結成形試樣易在此處破壞;激光掃描線間的耦合作用使端點球化現象隨掃描線的增加而逐漸顯著,燒結時應避免過短的掃描線;不同掃描策略對燒結成形有很大影響,交替掃描會影響燒結試樣的質量,實際製造時應採用單向掃描策略。Scarcely had the first congratulations upon her marvellous escape been gone through when she wrote the following letter to madame danglars : - dear hermine, - i have just had a wonderful escape from the most imminent danger, and i owe my safety to the very count of monte cristo we were talking about yesterday, but whom i little expected to see to - day. i remember how unmercifully i laughed at what i considered your eulogistic and exaggerated praises of him ; but i have now ample cause to admit that your enthusiastic description of this wonderful man fell far short of his merits
她一到家,在家人的一陣驚嘆平息之後,立刻寫了下面這封信給騰格拉爾夫人: 「親愛的愛米娜:我剛才從九死一生的危險中奇跡般地逃了出來,這全得歸功於我們昨天所談到的那位基督山伯爵但我決想不到今天會看見他我記得當你稱贊他的時候,我曾怎樣無情地加以嘲笑,覺得你的話太誇張了,可是現在我卻有充分的理由來相信:你對于這位奇人的描寫雖然熱情,但對於他的優點說的卻遠遠不夠。Then the structure unit of hexangular lattice is found according to the principle of invariable symmetry. renormalization transformation is processed when we regard the structure unit and the growth model as graphs before and after transformation respectively. after choosing the 11 thermodynamic function fugacity as parameter, we can write out the partition functions before and after transformation and the formula of renormalization transformation
然後根據對稱性不變的原則,從整體晶格中選取結構單元,把結構單元和生長模型分別作為重整化變換前、后的圖形來進行重整化變換,選取熱力學函數易逸度為參量,寫出了重整化變換前後的配分函數和重整化變換關系式,求出了這一變換的不動點。Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model
第二,討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據,發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大,這有利於對稱不穩定的發生。第三,採用f平面、非靜力平衡、濾聲波模式,討論了中尺度垂直環流非線性攝動分析及演變方程。The latest progress of asymmetric photochemical reactions revealed that the enantioselectivity in photochemical reactions could be achieved when the reactions take place in chiral environments, which will be reviewed in this articles
本文針對這一熱點問題,綜述在微反應器中進行不對稱光化學反應的研究進展。The heat - exchange apparatus is the window for air - conditioner to exchange energy with outside. we analyze the efficiency of heat - exchange apparatus by the theory of heat - transmit, and compare the advantage and disadvantage of different type evaporator ' s and condenser ' s design by lots testing, and compare the effect of heat - exchange for different type flake, and compare the effect of heat resistance for different stretch of copper tube and flake. then we get many useful results from those different comparing
蒸發器與冷凝器統稱為換熱器,換熱器是空調器與外界進行能量交換窗口,利用傳熱學原理對換熱器的效率進行分析,通過大量的試驗比較不同的蒸發器,冷凝器設計方案的優劣;比較冷凝器使用不同片型對換熱效果的影響;比較銅管與翅片的不同脹緊對熱阻的影響,通過比較得出很多有用的結論。Based on unsymmetrical heat environment, boresight error, boresight error slope and transmission coefficient of a specific shape radome have been calculated with indirect ray method
在不對稱熱環境的基礎上,採用間接射線法計算天線罩瞄準誤差、瞄準誤差斜率及功率傳輸系數。A couple of additional venting gills have been placed at the top of the sidepod ( small arrow and magnified area ), requiring no change to the sidepod ' s profile, and asymmetrical cooling chimneys have been added ( large left arrow )
車側進氣口的頂端安裝了數個鰓狀散熱口(小箭頭處和放大的區域) ,安裝這些套件不需要改變進氣口的外觀,在此同時加上一個冷卻用的不對稱煙囪排氣口(大箭頭處) 。The paper establishes mathematics model of electromagnetic heating system of eddy current field and temperature field, and gives corresponding discrete format with elements as eight nodes, hexahedron equal cell, through calculating eddy - current field to gain the internal heat source that the temperature field needed, to use discrete method to solve the problem of induction - heating part ' s temperature field by axial symmetrical electromagnetic, and then to analyze the characteristic of instantaneous temperature field
本文建立了電磁加熱系統的渦流場和溫度場間接耦合的數學模型,分析了不同頻率下渦流和溫度的分佈情況,並以八節點六面體等參元為例給出了渦流場對應的離散格式,通過計算渦流場獲得溫度場所需要的內熱源強度,加熱部件的溫度場以軸對稱格式進行離散求解,並對瞬態溫度場有限單元法的求解特點進行了分析。The basic principle is : don " t disturb the others. before you ask the way, you should say hello to him or her politely. at last, you should say thank you
總的原則是不輕易打擾別人。詢問之前要熱情、禮貌地稱呼對方,之後要誠摯道謝。Economists call it “ asymmetric effect of monetary policy ”. when we compared the effect of contractionary and expansionary monetary policy, we can found that when monetary policy was tight in 1993 and 1994, the economy slowed down quickly. yet when monetary policy was easy in 1998, the economy did not response accordingly
但如果定量的來對比兩種貨幣政策的實際效果,那麼緊縮性和擴張性貨幣政策對經濟活動卻具有不同程度的影響,具體表現為經濟衰退階段的擴張性貨幣政策對經濟的刺激作用小於經濟過熱階段緊縮性貨幣政策對經濟的減速作用,經濟學家將這種現象稱為「貨幣政策的非對稱效應」 。Following these two examples of two and three phases, regarding ternary and quarternary metallic melts involving eutectic as melts consisting of three and four non - homogeneuos solutions correspondingly, and using thermo - dynamic parameters of binary metallic melts involving eutectic, calculating models of mass action concentrations for ternary symmetrical melts formed from similar metastable compounds, ternary unsymmetrical melts formed from unsimilar metastable compounds and quarternary metallic melts involving eutectic have been formulated
仿照這兩個二、三相熔體的例子,將含共晶體三、四元金屬熔體看作由3 , 4個溶液組成的非均相熔體,並利用含共晶體二元金屬熔體的有關熱力學參數,針對由同類亞穩態化合物組成的對稱型三元系、不同類型亞穩態化合物組成的非對稱型三元系及四元系含共晶體金屬熔體,制定了相應的作用濃度計算模型。The results show that there are two centers of occurrence of llsw respectively in dong bei and jiang nan ; the regional torrential rain over the yangtze river basin is closely associated with llsw during the major periods of heavy rainfall ; the diurnal variation of the number of occurrence in the middle and low reaches of the yangtze river is the strongest in china there are some significant differences between llj and nallsw in positive season, spatial variation, diurnal variation and field of pressure. by the way, the important effect of inertial stability on heavy rainfall with both low level south - westerly jet and high level northerly strong flow is analyzed theoretically. the results show that the existence of the maximum of inertial stability in the left font of the low level jet is favor of the accumulation of the moist thermal energy, and conditional symmetric instability or convective instability can be expected in this region
另外,慣性穩定性的作用以往不受重視,本文通過對西南低空急流左前方和高空偏北大風軸右後方的慣性穩定性和對稱穩定性的理論分析和實例計算,表明慣性穩定性在伴有高低空急流的暴雨中有重要意義,揭示了梅雨暴雨的一種新的高低空急流耦合機制:低空急流左前方慣性穩定度大值區的存在,有利於低層濕熱能量的積累,使低層傾斜對流的不穩定發展更多期望于條件性對稱不穩定或對流不穩定;高空偏北大風軸(西風急流)的存在,是其右後方(右側)出現對稱不穩定的有利條件,高空相對容易出現干對稱不穩定;慣性穩定性的作用,使低層的傾斜對流更偏向於垂直方向,有利於對流發展,使高層的傾斜對流更偏向於水平方向,有利於高層輻散。As the demand of low weight and high strength for high damping alloys, the composition of aluminum alloys was determined as al - 20 % zn - 6 % si - 0. 4 % mg ( i. e. azsm ) by the orthogonal experiments. furthermore, effects of alloyed elements, the modifying agents and heat - treatment on microstructures, damping capacities and mechanical properties of the azsm alloy were studied. finally, the damping mechanism of the azsm alloy was proposed
根據對高阻尼合金輕質高強的要求,採用正交試驗法確定了具有良好阻尼性能的鋁合金的成分為al - 20 zn - 6 si - 0 . 4 mg (下稱azsm合金) ;探討了合金化、變質和不同熱處理工藝對azsm合金組織、阻尼性能和力學性能的影響;最後提出了azsm合金的室溫阻尼機制。The roughness coefficient experiments indicate that the change in tropical cyclone intensity will be varied with different coefficient. also the experiment indicates the wind of tropical cyclone is reduced by the land and the effect of an tropical cyclone landfalling process could result in the height increasing of tropical cyclone boundary layer
通過不同的陸地粗糙度參數數值試驗,結果表明,粗糙度越大,熱帶氣旋強度減弱越多,其造成的非對稱結構也越明顯;而且,由於登陸作用,陸地一側的地表風減小,登陸的摩擦作用將可能導致邊界層的高度增加。The missile with its radome is at high temperature during the entrance. due to aerodynamics heating process, the high temperature cause air ionization and ablation of the radome, so the radome is at unsymmetrical heat environment, its electrical properties vary with different parts of the radome
導彈在再入過程中,由於空氣動力加熱效應,引起空氣電離和天線罩表面被燒蝕,因此,天線罩處于不對稱熱環境中,它各部分的介電性能不同。Nonclassical potential symmetries and invariant solutions of heat equation
熱方程的非古典勢對稱群與不變解The two - dimensional axisymmetric subsonic - transonic - supersonic flow in an experimental arcjet thruster is simulated numerically using flux vector splitting method. the profiles of density, velocity, temperature, pressure and mach number can be obtained by the computation. the computation grid and some computed results are given here. the test equipment such as power supply system, ignition system, propellant supply system, arcjet thruster, thrust measuring device and vacuum system are introduced briefly. some working phenomena of the arcjet are observed and discussed. three different kinds of instability appeared in the process of the experiments. except some important parameters are measured, it is found that the operating stability of argon is better than that of nitrogen
對一實驗電弧加熱式發動機二維軸對稱亞跨超音速流動進行了數值模擬,所採用的方法是矢通量分裂演算法.通過計算可以得出密度、速度、溫度、壓力和馬赫數的分佈.給出了計算所使用的網格和一些計算結果.簡要介紹了實驗所使用的設備,如電源系統、點火系統、推進劑供給系統、電弧加熱式發動機、推力測量裝置和真空系統.對所觀察到的一些工作現象進行了討論.有三種不同的不穩定性出現于實驗過程.除了所測量的一些重要參數,通過實驗發現氬比氮工作更穩定As for moving tc, its symmetry somely rusume after landfalling. the different distributing between expb2 and expb3 is much smaller than the other exps of the same group, so it is shown that if the roughness coefficient come to a certain number, the effect of roughness maybe not take the leading key in tc decreasing process any more
對于移動熱帶氣旋登陸而言,登陸后對稱性有所恢復,當下墊面粗糙度達到一定值時,由於粗糙度引起的差異明顯減小,粗糙度在其減弱的過程中可能已不佔主導作用。So it is suitable for real option method to coordinate the npv index. finally, based on option - game theory, under some certain supposition conditions, we analyze the strategies and behaviors of investment decision - making of two asymmetrical enterprises which take participation in the monopoly competitive market, and give some numeral computation analysis in order
最後,基於期權博弈理論,在一定的假設條件下,通過建立期權博弈模型系統分析了在壟斷競爭市場下兩不對稱企業投資決策的策略與行為,並給了數值計算分析,加深印象,再次說明了政府可以通過優惠政策、稅收等手段重點扶持一批優勢企業在某些重點行業從事一些周期長的大型項目的研發投資,在一定程度上這也成為了政府調控一些行業過熱或過冷的理論依據。分享友人