熱擴散管 的英文怎麼說
中文拼音 [rèkuòsǎnguǎn]
熱擴散管
英文
thermal diffusion tube-
Medicaments is absorbed through the skin, outside changing property to affect except the put in order that gets medicaments itself, still with skin itself appear a gender to have affinity, the corneous layer in the skin is the main obstacle that the influence appears a skin to absorb
藥物經皮膚吸收進入體內的主要途徑有： （ 1 ）通過毛細血管通道；經過角質層轉運和皮膚深層轉運而吸收入血，阻隨血液循環到達人體各部位； （ 2 ）水合作用：角質層經水合作用后，可膨化呈多孔狀態，有利於藥物滲透； （ 3 ）熱刺激作用：可使局部血管擴張，血液循環加快，有利於藥物的穿透彌散和吸收。Along with the wave of information and globalization, human being society has already stepped into the knowledge society. the knowledge society is based on the production, distribution and utilization of knowledge and information. in the new era, knowledge increasingly becomes important and to be the most sinificant resource successive to land, labor and capital, which desides the business competitive advantages. for this purpose, enterpris - es have to divert their attention to the resouce of knowledge to get advantages over others in competition in the knowledge economy. in the knowledge economy society, as the dynamic source of the enterprises " innvation, knowledge has become the most scarce resource. it is up to present knowledge storage of firm whether it can catch more opportunities and ways of resource allocation, which contributes to competitive advantages. therefore, the more and the newer knowledge is grasped and invented, the more competitive advantages can be seized. furthermore, enterprises have to maintain their sustainable capability of competition on the ground of assurance that enterprises can effectively manage the process of innovation, inspiration, disseverance and application of knowledge. thus, it is the focus of scholars in the knowledge economy to find the mechanism how knowledge plays its role in business, and to make in - depth researches on the way of knowledge development diversion, dissemination and the law of knowledge
因此，誰掌握了最新的知識，誰掌握了更多的知識，誰發明和創造了更新的知識，誰生產了包含更多知識的使用價值，誰就能在未來的競爭中取得優勢地位。進一步地，企業為實現持續競爭力，必須以知識的持續積累為條件，以對企業自身所擁有知識從發明、激活、擴散和應用整個過程的有效管理為根本保證。為此，把握知識在企業中發揮作用的微觀機理，對企業開發、轉移、擴散、利用知識的方式和知識管理規律進行深入研究，成為知識經濟時代學者們關注的熱門前沿。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。Hygrothermal performance of building of equipment and industrial installations - calculation of water vapour diffusion - cold pipe insulations systems
建築物設備和工業設施的濕熱性能.水蒸汽擴散計算方法.冷水管絕緣系統In 420t / h boiler inspecting, the collecting - steam box of reheater and correlative pipelines are detected to appear diffuse crack, which has expansive trend
在對420t h鍋爐的規范檢查當中發現，再熱器集汽箱管座及其附屬管道外壁出現由內而外發散的放射狀裂紋，並且有不斷擴大的趨勢。Abstract : the paper presents a theoretical study on the thermal conductivity of frost formation on cooled flat plate under forced convection. taking the porous meditum as a physical model of frost layer, according to the theories of heat and mass transfer, the formula on heat conductivty of frost formation is derived
文摘:研究水蒸汽凝華結霜過程在冷壁上形成的霜層的導熱系數，依據隨機管子多孔介質霜層模型，假設霜層是由孔隙空間與冰晶骨架構成的多孔介質，其中孔隙空間由隨機毛細管及連接管子的接頭形成，濕空氣中的水蒸汽在霜層的孔隙空間中擴散輸運並凝華結霜，根據傳熱傳質學理論，導出霜層導熱系數關系式。With the development of network and web technology, interzone and interplatform distributive calculation becomes increasingly large - scaled and widely used. it turns to be the priority of enterprises " informationization to construct a distributive multiplayer system that is extendable, flexible, easy to manage, interplatform, of high multicomplextiy and security
隨著網路技術和web技術的發展，跨地域、跨平臺的分散式計算的規模越來越大，應用也越來越廣泛，構建可擴展、可伸縮、易管理、跨平臺、高復用性和安全性的多層結構分散式應用已成為企業信息化建設的熱點問題。Hygrothermal performance of building equipment and industrial installations - calculation of water vapour diffusion - cold pipe insulation systems
建築設備和工業設施的溫濕性能.水蒸氣擴散的計算.冷凝管隔熱系統The condensation heat - exchange characteristic of a separate - type heat - pipe was studied on a 1 : 1 model. the heat pipe is heated by electricity, and working fluid is distilled water, and it is cooled by air. the experimental results show that, ( 1 ) when charging liquid ratio is 45 %, condensation heat - exchange coefficient reaches to maxium ; ( 2 ) when there is not non - condensing gas, the coeffcient decreases a little with the increase of vapour pressure, and it decreases by 9. 5 % when the pressure increases from 0. 16mpa to 0. 36mpa ; ( 3 ) when there is non - condensing gas, the coefficient decreases a little, but when the gas is discharged by an exhaust value, it can be improved, when the volume content of the gas is 2. 5 %, it can increased by 22 % ; ( 4 ) the effect of the non - condensing gas on the coefficient decreases with the increase of the pressure, and when the volume content of the gas is 5 % and the pressure increases from 0. 16mpa to 0. 36mpa, the coefficient increases by 6 %. the relative curves are given between condensation heat - exchange coefficient and air flowrate, charging liquid ratio and vapour pressure
建立了空氣冷卻實驗臺，熱管的加熱方式為電加熱，工質為蒸餾水.在1 1模型上對分離式熱管管內凝結換熱特性、不凝性氣體對凝結換熱的影響及不凝性氣體的擴散規律進行了試驗，得出分離式熱管有一最佳充液率，其值為45 %左右；凝結換熱系數隨著蒸汽壓力的增加略有降低，在實驗的壓力范圍內，降低了9 . 5 % ；不凝性氣體對分離式熱管的凝結換熱僅影響冷凝段下部較小部分，通過排氣閥排出不凝性氣體可有效地改善冷凝段下部的凝結換熱；隨著壓力的增加，不凝性氣體對分離式熱管冷凝段的影響減少.這些結論可用於分離式熱管換熱器的工程設計和控制Abstract : the condensation heat - exchange characteristic of a separate - type heat - pipe was studied on a 1 : 1 model. the heat pipe is heated by electricity, and working fluid is distilled water, and it is cooled by air. the experimental results show that, ( 1 ) when charging liquid ratio is 45 %, condensation heat - exchange coefficient reaches to maxium ; ( 2 ) when there is not non - condensing gas, the coeffcient decreases a little with the increase of vapour pressure, and it decreases by 9. 5 % when the pressure increases from 0. 16mpa to 0. 36mpa ; ( 3 ) when there is non - condensing gas, the coefficient decreases a little, but when the gas is discharged by an exhaust value, it can be improved, when the volume content of the gas is 2. 5 %, it can increased by 22 % ; ( 4 ) the effect of the non - condensing gas on the coefficient decreases with the increase of the pressure, and when the volume content of the gas is 5 % and the pressure increases from 0. 16mpa to 0. 36mpa, the coefficient increases by 6 %. the relative curves are given between condensation heat - exchange coefficient and air flowrate, charging liquid ratio and vapour pressure
文摘:建立了空氣冷卻實驗臺，熱管的加熱方式為電加熱，工質為蒸餾水.在1 1模型上對分離式熱管管內凝結換熱特性、不凝性氣體對凝結換熱的影響及不凝性氣體的擴散規律進行了試驗，得出分離式熱管有一最佳充液率，其值為45 %左右；凝結換熱系數隨著蒸汽壓力的增加略有降低，在實驗的壓力范圍內，降低了9 . 5 % ；不凝性氣體對分離式熱管的凝結換熱僅影響冷凝段下部較小部分，通過排氣閥排出不凝性氣體可有效地改善冷凝段下部的凝結換熱；隨著壓力的增加，不凝性氣體對分離式熱管冷凝段的影響減少.這些結論可用於分離式熱管換熱器的工程設計和控制Indoor air - sampling and analysis of volatile organic compounds by sorbent tube thermal desorption capillary gas chromatography - diffusive sampling
室內空氣.用吸附管熱解吸毛細管氣相色譜法進行揮發性化合物的取樣和分析.擴散取樣分享友人