thermal ratio 中文意思是什麼
thermal ratio
解釋
回熱度-
We carry on model study on non - thermal phase transition and antiproton to proton ratio at rhic energies
本文對非熱相變和rhic能區的反質子質子產額比進行了模型研究。 -
After the bottleneck in the original ethene production plant is analyzed, the revamp design plan for srt - iii cracking furnace is proposed. the measuring results after revampment show that the thermal efficiency and ethene recovery ratio are increased compared with the design data ; the production capacity of ethene cracking furnace is enhanced, and energy consumption is reducted
通過分析原乙烯裝置生產存在的「瓶頸」 ，提出了srt -型裂解爐改造的設計方案，並對改造後效果進行測量，熱效率和乙烯收率均比設計值有所提高，乙烯裂解爐的生產能力提高了，能耗降低了。 -
Abstract : the paper established the idea of passive solar houses with zero - auxiliary heating source as well as the calculating method for the design and passive solar house. based on the ratio of radiant temperature difference i. e. thermal design and calculation method for passive solar houses with zero - auxiliary heating source
文摘:著重介紹零輔助熱源被動式太陽房的概念及以輻射溫差比為設計依據的被動式太陽房熱工設計計算方法零輔助熱源被動式太陽房熱工設計計算方法 -
In respect of thermal transfixion, the permeability coefficient ratio determines the success or failure of gwhpprsw
從熱貫通的角度來說，滲透系數比是同井回灌地下水源熱泵系統工程成敗的關鍵。 -
The surface elemental analysis shows that al / o atomic ratio change from about 2 / 3 of not wetted part to about 1 / 1 of wetted part. the damage of coating surface seems to be related to the interaction of outside layer with liquid pb - 17li and thermal stress during heating sample
未浸潤表面的ai / o原子比約為2 / 3 ，浸潤表面約為1 / 1 ，表明液態鉛鋰合金對滲鋁層表面的al2o3薄層造成了損傷。 -
The thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed channel are measured by using infrared camera and then the impingement cooling heat transfer coefficients are deduced. the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : for a single row normal impingement, the impingement cooling effectiveness is enhanced with the increase of impinging reynolds number or the decrease of hole space to diameter ratio, and the best effectiveness is achieved under the jet - to - surface spacing equals to 2 ; when the jet is oblique to the confined wall, the cooling effectiveness is weaken especially under the jet - to - surface spacing ratio is greater than 2 ; for double rows normal impingement cooling, the cooling effectiveness of rear row jet is weaker than the front row under lower impinging reynolds number or bigger jet - to - surface spacing
對于單排垂直射流，沖擊冷卻效果隨射流雷諾數的增加、孔間距與直徑比的減小而得到提高，沖擊間距比為2時換熱效果最好;沖擊孔中心線向通道封閉一側傾斜后，射流沖擊冷卻的范圍變窄，當沖擊間距比大於2時駐點區的對流換熱能力明顯降低;對于雙排沖擊射流，孔排間距與直徑比的增加使沖擊冷卻范圍變大，但在兩排孔之間區域的對流換熱系數有所下降;在較小的沖擊射流雷諾數和較大的沖擊間距比下，後排射流的沖擊換熱效果要遜於前排射流。 -
The result indicate : the sx ( x axis radial ) thermal stress of concrete with low w / c ratio was more large than the sx thermal stress of concrete with high w / c ratio, the changement of the sx thermal stress of all concrete with different w / c ratio was less after adding mineral additives
結果顯示:低水灰比混凝土的sx （ x軸徑向）溫度應力，要大於高水灰比混凝土的sx溫度應力，摻入礦物摻合料后不同水灰比混凝土的sx溫度應力都變化不大。 -
The optimum conditions for air electrode preparation were shown as follow : 20 % ptfe and 20 % mno2 in active layer, thickness of active layer 0. 15 - 0. 25mm and the ratio of active carbon to ethine black 4 : 1 ; 60 % ptfe in the gas diffusion and waterproof layer, employing na2so4 as pore - making agents, thickness 0. 35 - 0. 45mm, colding forming and layer sequence catlytic layer / gas diffusion and waterproof layer / current collector layout ; employing 40 meshed nickel screen as current collector and thermal treatment temperature over 200
確定了制備空氣電極的優化工藝條件，催化層中ptfe含量約20 ， mno _ 2的最佳含量約為20 ，催化層中活性炭和乙炔黑的比例為4 ： 1 （質量比） ，厚度在0 . 15 - 0 . 25mm之間。防水透氣層中ptfe的含量約為60 ，以無水硫酸鈉作為造孔劑，厚度一般為0 . 35 - 0 . 45mm 。電極各層採用催化層/防水透氣層/集流體的排布方式，冷壓成型，熱處理對空氣電極的性能影響較大，熱處理溫度不低於200 。 -
The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。 -
The equilibrium working temperature of the gasifier and the composition of the outlet syngas ( short for synthesis gas ) at this temperature were calculated by solving the chemical equilibrium and the energy equilibrium equations. the analysis was used to study the effect of gasifying agent mixture ratio on the outlet syngas composition, the cold gas efficiency, the thermal efficiency and the exergy efficiency. the optimum o2 / coal ratio was found for a reasonable vapor / coal ratio ( the vapor / coal ratio had little effect on the efficiencies ) for various kinds of coal to maximum the thermal efficiency and the exergy efficiency
通過化學平衡和熱量平衡方法求解氣化爐平衡工作溫度以及該溫度下的出口煤氣成分，研究了氣化爐進口氣化劑配比對出口煤氣成分、冷煤氣效率、熱效率及火用效率的影響，指出熱效率、火用效率最優情況下適應于各煤種的最優氧煤比以及合理的水蒸汽耗量，為多聯產系統的設計優化提供參考。 -
Our products include multifunctional fittings such as gas air ratio control systems, and thermal management based on microprocessor - controlled automatic burner controls
我們的產品包括多功能裝置如空燃比調節系統和基於微處理器控制的自動燃燒器的熱量管理。 -
As a result, these three methods evidently improve radiation exitance and thermal image of devices and improve the troubleshooting ratio
這三種方法有效地提高了元器件的溫度和發射系數，從而增強了元器件的輻射度或明顯改善了它們的熱圖像。 -
At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency
在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。 -
The relations between the parameters of gas charging and exhausting, heat quantity through the shell of tube ( q ), the length of the tube ( l ), the ratio of gas charging time to gas exhausting time ( ), the frequency of the jet flow ( f ), the ratio of the expansion ( ), the nature of thermal separator and the unsteady flow in the tube were established
建立了進、排氣參數、管壁散熱量（ q ） 、管長（ l ） 、充、排氣時間比（ ） 、射流頻率（ f ） 、膨脹比（ ）等參數與熱分離機性能及管內非定常流動的關系，並分析了有關因素對熱分離機性能的影響。 -
The membrane layer is formed by the vacuum forming technology. by controlling the weight and the ratio of long path of ceramics fiber, changing the operation factor reasonably of vacuum forming, we can obtain the ceramic fiber composite membrane layer, which has pore diameters of about 5 to about 30um, porosity i s 50 - 80 %, and tensile strength is about 4. 1to 18. 1mpa and thickness of membrane layer is 0. 5 - 2 mm, has the good thermal shock resistance and peal off
膜層採用真空抽濾成型工藝，通過控制膜組分中陶瓷纖維長徑比、纖維加入量、成型時料漿濃度、成型壓力及成型時間等可以獲得膜孔徑5 ? 30 m 、氣孔率50 ? 80 、抗折強度4 . 3 ? 18mpa 、膜層厚度0 . 5 ? 2mm 、具有良好熱性能和耐剝離性能的陶瓷纖維復合微濾膜材料。 -
Moreover, it has been pointed out that the hydrogen engine used in ? cylinder injection with high pressure can increase volumetric efficiency and compression ratio, - therefore, the performance indexes in this engine, such as output power, thermal efficiency, range of thickness of mixture with normal operation and nox emission, can be improved, and it is possible for the engine to realize rapid combustion of thin mixture, so abnormal combustion, such as backfire, pre ? ignition, can be controlled effectively
指出了採用內部混合氣形成方式且高壓噴射的氫發動機，有利於提高充氣效率和壓縮比，從而改善發動機的動力性和經濟性；有利於擴展發動機正常工作的濃度范圍；並且有利於實現稀薄混合氣快速燃燒，從而可以有效地抑制早燃、回火及爆燃等異常燃燒和no _ x排放量。試驗指出了發動機的點火正時、噴射正時及噴氫量對發動機的性能、異常燃燒、 no _ x排放量有很大影響。 -
Raw thermal images acquired by pulsed thermography ( pt ) usually have low signal noise ratio ( snr ) and temperature contrast
摘要脈沖熱像檢測中直接獲取的原始熱像往往信噪比較低、對比度較差。 -
Then a self - searching optimal control method for enhancing thermal efficiency is obtained through the optimal wind - coal ratio. then a computer control system for economic combustion in coal - fired boiler is designed
通過實現燃煤鍋爐最佳風煤比，得出提高鍋爐熱效率的自尋優控制方案，設計出了用於燃煤鍋爐經濟燃燒的計算機控制系統。 -
This system finished supervisory control of boiler burning, sampled signals through sensors and calculated the signals whether reached the best content of oxygen and the best wind - coal ratio. using it controls the quantity of coal, entering wind and sending wing for reaching the best thermal efficiency of burning and improving economy benefit of boiler running
系統對鍋爐燃燒進行監控，通過傳感器采樣信號，計算是否達到最佳含氧量、最佳風煤比，來控制給煤量、引風量和送風量，使燃燒達到最佳熱效率和提高鍋爐運行的經濟效益。 -
The tests of e - o applications by our flux ktp has been realized, the results showed : optical waveguides fabricated by using an ion - exchange process, which have an exchange - ion concentration depth profile and refractive - index profile, is close to a complementary error - function distribution, optical homogeneity and device thermal stability is much better. amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2. 5 % at 1064 nm. high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width, this modulator had run for three years, and the crystal did n ' t blackened, it showed our low conductivity flux ktp can endure high modulation voltage for a very long time
Ktp晶體的電光應用試驗表明：用離子交換法製作的電光波導，其離子交換濃度、折射率變化符合餘弦誤差函數，光學均勻性以及器件的溫度穩定性較好；製作的強度調制電光開關，消光比為150 ： 1 ，對1064nm激光的插入損耗為2 . 5 ；製作的電光調制器用於激光脈沖整形試驗，從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質量光脈沖，該電光開關經過長達三年多的使用，沒有出現晶體變黑現象，說明本實驗的低電導率ktp晶體能夠耐受長時間的調制電壓。
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