熱差值 的英文怎麼說

中文拼音 [chāzhí]
熱差值 英文
thermal difference
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  1. On the basis of expound the theory of building exterior - protected construction energy consumption and the gene of influence the building energy, set up mathematics model, this article discuss the mechanism of dispelling the heat of the buildings " thermal bridge and the complication that influence it, and then synthetic analysis and calculate the influence range of building thermal bridge in exterior - protected construction column thermal bridge to the building outer wall get the conclusion that when the construction column can satisfy the building stress - area, in bulgy construction column dispel less heating than out bulgy construction column. but if the pole stuck out more than 100mm, in bulgy or out bulgy make no difference

    本文在闡述建築圍護結構耗原理以及影響建築能耗因子的基礎上,採用數模擬方法,探討了建築橋傳的基本機理和影響建築橋傳的因素,進而對建築橋在圍護結構傳中的影響范圍進行了綜合分析和計算,研究了構造柱橋型式對建築外墻能耗的影響,得出了構造柱在滿足建築受力面積要求的情況下,內凸構造柱較外凸構造柱略能減少散量的結論,但是凸出過大( 100mm )無論內凸還是外凸對建築耗都沒有大的別。
  2. 1. thermic electromotive force and allowable error

    1 .電動勢及允
  3. 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 ) 、油水特性別較大的油井; ( 3 ) 、油比偏低水比偏高的油井; ( 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。
  4. This thesis aims to design one instrument to measurement of the fluid thermal conductivity by used the hot - wire method ( hwm ). firstly expatiated on the theory of this method, got the academic solution by analyzing the ideal model, and then amended the ideal solution to satisfy the factual situations

    本文重點討論瞬態線法測量液體的導系數,從理論與實驗及數模擬的角度分析探討瞬態線法測量液體導系數原理及其實現過程,並分析理論與實際測量過程中的誤產生原因及誤避免與校正。
  5. In this case, international hot money and idle fund flow into our country in a large amount, gamble the appreciation expectancy of rmb, become of our country foreign exchange reserve with foreign currency account for main reason that fund rise fast in recent years

    近年來,由於中國宏觀經濟的良好態勢,以及中國對外貿易的巨大順,使人民幣面臨升壓力。這種情況下,國際錢與游資大量流入我國境內,賭人民幣升預期,成為近幾年我國外匯儲備和外匯占款快速上升的主要原因。
  6. We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful

    綜合分析認為: ( 1 ) 、這次冷渦在其發生發展過程中,其移動路徑是沿經圈直線南壓,攜帶的冷空氣勢力較強,形成槽后較強的垂直運動; ( 2 ) 、西太平洋副帶高壓偏北位置與東北冷渦南壓形成的急流軸,把源源不斷的西南暖濕氣流輸送到遼西地區,也就是急流軸的左前方位置,為這次暴雨的產生提供了充足的水汽來源; ( 3 ) 、低空急流不但為暴雨輸送水汽,其造成的較強的垂直環流也是產生強降水的一個主要原因; ( 4 ) 、 mm5模式以四維同化資料作為初始場,最大限度地避免了觀測誤可能造成的積分不穩定,提高了模擬結果的參考價
  7. It shows that the injection quantity and the difference of temperature distribute as a parabola which is at the same load, and the minimum of the parabola corresponds to the optimum quantity of injection ( g ). under the condition that the quantity of injected mass, the air speed and the heat quantity is respectively g, v and q, the research demonstrates that the pentium iv chip ' s temperature variation can be controlled under 40c and work normally when the wind speed overpass 1. 5m / s and the power dissipation of the chip is 60w. otherwise this paper calculates the flooding limit of thermosiphon with several different methods

    對其充灌量、散量、電子元件( cpu模擬晶元)表面與環境溫度之及通風、流速的影響進行了系統的測試,發現充液量與溫的關系在負荷不變時呈拋物線分佈,其極小點對應的充液量是最佳充液量g 。在充液量為g時,對風速v 、散量q進行的研究表明,當風速超過1 . 5m / s后,奔騰晶元在60w發條件下晶元溫度小於40 ,能滿足長期正常工作。
  8. That means the controlled temperature al1ow waving in a range in a period. when the change of the temperature indoor is out of the range we enacted, the system begin to regulatc. compensate the windage last time leave behind } before decide the heatsupply parameter for the next time

    即允許被控室內溫度在一段時間內存在一定幅度的波動,當室溫變化幅度超過設定時系統開始調節,在確定下一時間段的供參數之前對上一時間段的遺留偏在短時間內給予補償。
  9. Results of recent observation and numerical experiments show that prominent difference exists between air - sea interaction in tropical and in mid - latitude, and work is not enough related to the impact of persistent ssta on the circulation considering different district in pacific

    觀測分析和數模擬結果表明中緯度與帶地區的海氣相互作用存在異,但深入討論不同關鍵海區的持續性ssta對大氣環流影響的工作還不充分。
  10. This paper describes how to calculate the temperature of high - temp gas at the outlet of combustor by means of limited gas composition and analyses how errors in measuring gas composition, low calorific value of fuel, fuel composition and fuel temperature, etc. affect gas temperature

    摘要敘述了一種根據有限的燃氣成分推算燃燒室出口高溫燃氣溫度的計算方法,並分析了燃氣成分測量誤、燃料低、燃料成分及燃料溫度等對燃氣溫度的影響。
  11. In the paper, with system energy balance method and heat conductive equations , on tne basis of short time heat transfer modeling established the long time modeling, considering heat interference in thermal well group. this paper used the finit element method for element division and computer analysis, and provided the operation temperature figure. acquired computation values agreed well with experimental results, the most difference between them was 5. 13 %

    本文採用系統能量平衡結合傳導方程,在淺埋套管式換器短期傳模型基礎上建立了長期傳模型,並考慮了管群干擾對模型的影響。並運用有限單元法軟體編程進行離散和計算機分析,得出模擬溫度場,其模擬與實測的均基本相符,兩者最大誤小於5 . 13 % ,表明該模型具有一定的合理性和實用意義。
  12. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ,其分子量恢復到23kd ,證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現:三種酶的最適ph異不大, xynb和xynba均為5 . 2 , xynbb為5 . 0 ; xynb和xynba的最適溫度均為60 , xynbb降為50 :在耐性上, xynba由於糖基化作用穩定性明顯高於未糖基化的xynb和xynbb ; xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ,明顯低於原酶的比活2814 . 45iu mg ; xynb和xynba的km相當,分別為21 . 56 ( g kg )和20 . 87 ( g kg ) ,而xynbb的km較大為27 . 10 ( g kg ) ; xynba和xynbb的vmax相不大,分別為4568 mol mg ? min和5329 mol mg ? min ,明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性,對胃蛋白酶和胰蛋白酶有很好的抗性,且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現:以樺木木聚糖為底物時,酶解產物主要為木三糖和木四糖,含量分別為68 . 43和16 . 50 ,另外還含有11 . 79的木二糖;以玉米芯木聚糖為底物時,酶解產物主要為木二糖和木三糖,含量分別為81 . 78和11 . 55 。
  13. It is found that in the absence of dissipation and average photon number of the reservoir the linear entropies of the atom and the field varies with time periodically, going to zero at the disentanglement times, and the period is the same as that of bell function and the linear entropy of the total system is zero at any time. if the cavity dissipation and the average photon number of the reservoir is taken into account, the linear entropies of the atom and the field present local maxima and minima and the difference between them diminishes with time, tending to asymptotic values

    結果表明,在忽略腔損耗和庫的平均光子數時,原子和場的線性熵有周期性的變化,在沒有糾纏的時刻,為0 ,此時的周期與bell函數相同,而系統的線性熵在任何時刻都為0 ;如果考慮到腔場的損耗和庫的平均光子數,原子和場的線性熵有局部的最大和最小,它們之間的距隨時間逐漸減小,趨向一個漸進
  14. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點,提出多變量協調控制方案,解決了系統可控性,難以實現穩定自動運行的問題;在此基礎上,改變以往以煙氣含氧量控制送風的傳統模式,針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重,煤種混雜、成分不穩定、燃燒發低、燃燒效率不高等問題,應用智能控制理論中的模糊控制技術,結合自尋最優控制的思想,設計了一種模糊自尋優控制器,應用在電站鍋爐送風控制系統上,並闡述了動靜態兩種實現途徑,通過在線優化風煤配比,實現最佳經濟燃燒,切實保障了鍋爐的經濟運行。
  15. Using the dynamic mechanical analyzer ( dma ), pdms / pma ipn was investigated at temperature of 5 - 180 c. the initiator, the component ratio, the type of pdms and the filler effected the damping properties. the result showed that the damping ability varied with the parameter and there was an optimal value. the excellent damping material in the papers was ipn, where tan man was 0. 735, and the damping functional temperature ranged with tan 8 > 0. 3 was 46 c. the micro - morphology and structure of pdms / pma ipn were characterized by two kinds of sem

    高分子阻尼材料的有效阻尼功能區是在ipn材料的t _ g區間內,而研究常溫條件下的阻尼性能更具有重要應用價,運用動態機械分析( dma )儀對ipn阻尼材料進行表徵,在5 180內對其損耗因子( tan )進行研究,發現引發劑和交聯劑的用量、聚硅氧烷的用量和分子量等參數對ipn阻尼性能的影響較大,存在一個合理配比,當pma與粘度為3300pa ? s的pdms之比(質量比)為1 . 17 : 1 、交聯劑用量為1時, tan最大為0 . 735 ,大於0 . 3的溫域達到46 。
  16. The problems of insulation resistance between the electrodes is too lower when the filament is on and the ability of bearing high voltage is too lower are rather outstanding and general during designing and manufacturing the tube with pyrolytic graphite grids in xuguang corporation. the technological experiments and the academic discussing which this article did to aim at these problems possess values of using for reference by other type tubes

    其中,態時極間絕緣低和耐高壓能力的問題是旭光公司在研製和生產解石墨柵極發射管中遇到的比較突出的共性問題,課題針對這些問題所做的工藝試驗和理論探討對其它管型具有借鑒和參考價
  17. A boson josephson junction ( bjj ) formed in a weakly coupled double - bec has been discussed intensively. based on mean - field theory ( mft ), which gives rise to the gross - pitaevskii equation, interesting phenomena such as macroscopic quantum self - trapping ( mqst ), and n - phase state, where the time - averaged quantum phase difference across the junction equals n have been predicted

    目前由弱耦合雙組分bec所構成的玻色約瑟夫森結( bjj )成為研究點,在平均場理論基礎上預言了許多有趣的現象如宏觀量子自捕獲( mqst ) ,和-位相態(結間量子位相的時間平均為) 。
  18. According to negative temperature coefficient of vbe and positive temperature coefficient of vt, a framework of band - gap voltage reference is investigated. the reference offer a source of pir, distributed three voltage, one as upper - threshold voltage of dual - threshold comparator, the other as lower - threshold voltage of comparator, the other as direct current voltage for second band - pass filter amplifier

    同時利用pnp晶體管發射結電壓的負溫度特性和發射結電壓的正溫度特性設計了一個帶隙基準電壓源。此帶隙基準電壓源本身作為釋電紅外傳感器的電源電壓,同時分壓提供雙限電壓比較器的上限電平和下限電平以及第二級帶通濾波放大器的直流電平。
  19. In view of results obtained in the work, the commonly 共同 made assumption 假定 of equality 均等 of heat transfer coefficients for both the bundle and its additional surface may lead to certain 確定 errors 誤差 in heat transfer calculations and discrepancies between the calculated values of heating surfaces area and later operational needs of steam generator

    在工作得到的結果,傳系數的做法為捆綁和它附加的表面在傳遞演算也許導致某些化表面的誤和蒸汽發電器之間的錯誤和誤。
  20. It is found during the cooling down in some local region that the normal stress difference varies from positive to negative and then turns positive again. the stress accumulates rapidly in the followed thermal treatment in this region, where the chip - on - board package tends to fail from

    在冷卻過程中某些局域正應力的變化規律為:該從正變到負再回到正,呈振蕩狀態;局域隨循環進行應力將急劇增加,即處于應力相對集中的狀態,這樣的區域是晶元易於失效的區域。
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