熱臨界點 的英文怎麼說
中文拼音 [rèlīnjièdiǎn]
熱臨界點
英文
critical thermal point-
Characterized by wide band gap, high breakage electric field, high thermal conductivity, high saturated electron mobility, cubic silicon carbide ( 3c - sic ), considered as one of the most promising wide band gap semiconductors, is widely utilized in high temperature, high frequency and large power semiconductor devices
3c - sic被譽為最有潛力的寬禁帶半導體材料，具有帶隙寬、臨界擊穿電場高、熱導率高、飽和電子漂移速度大等優點，是高溫、高頻、高功率半導體器件的首選材料。The entropy or number of states of system or subsystem are closely related to interaction of particles and energy level distribution, therefore, to study the temperature dependence of the specific heat may supply some important and useful microscopic information which may play an important role in understanding electronic structure, density of state, phonon spectrum etc. the specific heat measurements at low temperatures also play important roles in the finding of the third law of thermodynamics, the quantum theory of solid and bcs theory for superconducting etc. moreover, specific heat measurements help us to understand the different kinds of phase transitions ( such as : structural phase transition, magnetic phase transition, superconducting phase transition etc. ) and the scaling behavior near the critical point
系統、子系統的熵或微觀狀態數與微觀粒子間的相互作用及能級分佈密切相關，因此研究比熱與溫度的依賴關系能夠提供被測量系統許多極其有用的微觀信息，對理解固體的電子結構、電子態密度、聲子譜等起著十分重要的作用。低溫比熱的測量和研究對熱力學第三定律、固體量子理論和超導bcs等理論的建立起到了積極的推動作用。比熱研究還有助於認識各類相變如結構相變，磁性相變，超導相變等及臨界點附近的標度規律。Standard test method for calculation of stagnation enthalpy from heat transfer theory and experimental measurements of stagnation - point heat transfer and pressure
通過臨界點傳熱與壓力的熱傳遞理論和實驗測量來計算臨界熱函的標準試驗方法All types of national affairs are count for the reason that the national consciousness of relative nationalities are beyond the level of peace, and some national affairs result from the spurt of nationalism
世界范圍內林林總總、形形色色的民族問題的產生都是基於相關民族的民族意識對于維持和平共處的臨界點的突破，有的民族問題本身就是民族主義情緒狂熱迸發的結果。The precipitation sequence is. - supersaturated solid solution - stoicheometric " phase - growth. with the increase of the composition there is more characteristic of non - classical nucleation and growth, and the order parameter values of critical ordered nucleus decrease. the precipitation sequence is : supersaturated solid solution - nonstoicheometric ordered phase - stoicheometric " phase - growth
隨濃度增加，大部分亞穩區合金沉澱非經典形核長大的特徵增強，有序相臨界晶核序參數分佈曲線降低，且分佈更加平緩，沉澱序列為：過飽和固溶體非化學計量比有序相化學計量比相長大，非化學計量比有序相併非熱力學意義上的亞穩相，研究工作明確了這一點。Abstract : the paper firstly introduces three different approaches for the kinetic modeling of supercritical fluid extraction ( sfe ) ( empirical models, models based on the heat transfer analogy, and models based on differential mass balance ), and then models kinetic process of the sfe of flavonoid compounds from cedrela sinensis leaves in the presence of ultrasonic, at last shows the defects existed in most of the contemporary kinetic models through the example
文摘:首先介紹了三種動力學模擬超臨界流體萃取的模型（經驗模型、基於熱傳遞類推的模型以及基於微分質量平衡的模型） ，然後模擬了在超聲存在的條件下超臨界流體從香椿葉中萃取黃酮類化合物的動力學過程，最後通過該例子展示了現有大多數動力學模型的缺點The paper firstly introduces three different approaches for the kinetic modeling of supercritical fluid extraction ( sfe ) ( empirical models, models based on the heat transfer analogy, and models based on differential mass balance ), and then models kinetic process of the sfe of flavonoid compounds from cedrela sinensis leaves in the presence of ultrasonic, at last shows the defects existed in most of the contemporary kinetic models through the example
摘要首先介紹了三種動力學模擬超臨界流體萃取的模型（經驗模型、基於熱傳遞類推的模型以及基於微分質量平衡的模型） ，然後模擬了在超聲存在的條件下超臨界流體從香椿葉中萃取黃酮類化合物的動力學過程，最後通過該例子展示了現有大多數動力學模型的缺點。This paper discussed the thermal equilibrium and critical condition in exothermic reaction system, and deduced the values of dynamic parameters such as the judging criterion for thermal runaway, the ignition temperature and extinction temperature in the critical state of thermal runaway when there is no consumption of reaction materials
摘要討論化學放熱系統的熱穩定性和臨界條件，用化學反應物無消耗的假設推導化學放熱系統熱失控（熱爆炸）時的動力學參數臨界值，得到熱失控的判據、臨界點火溫度和熄火溫度。Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction
目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素，以便充分掌握影響孔度大小、分佈、形態的因素，使孔度調控范圍得以拓寬，使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發，分析熱致相分離聚合物多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備聚合物多孔膜.熱致相分離法制備多孔膜是高聚物均相溶液在淬冷條件下發生相分離的過程，它適用於上臨界共溶溫度型聚合物一稀釋劑二元體系.熱致相分離法成膜的過程，可以認為是旋節線機理佔主導地位.熱致相分離法制備的微孔材料，其孔隙率、孔徑大小、結構形態與聚合物稀釋劑的種類、組成配比、聚合物濃度、聚合物分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜，通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中聚合物-溶劑體系的相圖測定，不同厚度的多孔膜形貌研究，不同x （聚合物-溶劑相互作用參數）體系所制備的多孔膜形貌等需深人研究The fluid flow along the cooling passage of scq magnets were compared for both supercritical helium cooling and subcooled liquid cooling. based on the analyses, the supercritical helium cooling scheme was suggested
模擬冷卻氦流在scq磁體通道中的流動情況，比較了超臨界氦流和過冷氦流這兩種冷卻方式對流道中熱點溫度的影響，為該磁體冷卻方式的確定提供了依據。Abstract : thermal ignition of black powder and single base powder by an electrically heated wire was experimentally studied. critical igniti on current through the wire and time - to - ignition was measured. temperatures of the wire when ignition of powders occurred were calculated
文摘:用實驗方法研究了黑火藥和單基發射藥在電熱絲作用下的點火問題，測出了實驗條件下兩種藥劑的臨界點火電流及點火延滯期，並推算出了點火的電熱絲溫度。On the basis of the overall strategy of “ becoming one of the world top 500 companies ”, set by the headquarters of china united telecommunications corporations ltd. ( china unicom ), and urged by the new economic and market conditions, china unicom ( jilin ) implemented bpr in its operation, maintenance, and service ( oms ) system. with the continuous evolution of the bpr theory, bpr, tested by practice, has gradually shifted its focus from overall reengineering to optimization and improvement of business enterprises, reaching a more rational and more comprehensive stage with an increased operability and success rate. using “ the methodology of systematic redesign ”, a study on business process reengineering in the operation, maintenance and service system in china unicom ( jilin ) makes an analysis on the present process and, based on the present process, systematically creates a new process for oms system in china unicom ( jilin )
本文以目前企業界非常關注的熱點:業務流程再造（ businessprocessreengineering ，簡稱bpr ）在電信運營企業的運用為課題進行深入研究，在分析大型電信運營商運維體系所面臨的挑戰、運維理念變更的重要性和運維組織管理需要改革調整的必要性基礎上，分析研究吉林聯通運維服務體系管理流程的模式以及所存在的弊端，運用業務流程再造（ bpr ）理論對吉林聯通運維體研究，文中以bpr理論中的『系統化改造法』為指導思想， 『業務流程再造7階段模型』為理論模型對吉林聯通運維服務管理體系進行流程再造，整合網路管理、資源管理、作業調度系統之間的關系。The authors first apply basic theory of equivalent heat drop on the common circulation heat calculating model for thermal system in supercritical pressure power unit with second reheat cycles and other kind of condensing steam turbine by mathematical derivation strictly, based on the normal energy balance and theory of equivalent heat drop, aiming at characteristics of thermal system in which there are outer steam coolers that high pressure heater and low pressure heater carry
摘要以常規熱平衡方法和等效熱降理論為基礎，針對二次再熱超臨界機組熱力系統高低壓加熱器均設置外置式蒸汽冷卻器的特點，經過嚴格的數學推導，將等效熱降理論應用於二次再熱超臨界機組熱力系統循環吸熱量計算的研究，並提出了適用於不同類型凝汽式機組的通用數學計算模型。In recent years, the mode of the support and service of medical engineering in hospitals is always a focus in the community of clinic engineering
摘要醫學工程保障模式的創新是近年來臨床工程界討論的熱點。Because of sub - critical safety, fully using of the thorium - uranium resources and efficiency disposal high - radioactivity waste, this research has become the hot pot
因為具有次臨界安全性、充分利用釷、鈾資源和高放射性廢物的處置三大優點，成為研究的熱點。The technology of super ? critical fluid extraction and separation has been applied widely in extraction and separation of effective ingredients of traditional chinese medicine, pigment, essence and others because it has many advantages, for example lower energy exhausting, no pollution for environment and products
超臨界流體萃取分離技術具有低能耗、無環境污染、無產品二次污染和適應熱敏性物料等特點，廣泛應用於生物資源中草藥、色素、香精、調味料等有效成分的提取分離。Current studies on application of dense supercritical fluid as solvents for chemical and biochemical reactions are at the moment an interesting research topic
摘要近來以超臨界流體作為反應介質是化學和生物化學反應研究的一個熱點。Faceing with population environment and resource three hot questions in the world nowdays, it has become common understandings of every country in the world to choose the road of sustainable development
當今世界面臨著人口、資源與環境三大熱點問題。要使資源、生態環境與社會經濟發展相協調，選擇可持續發展的道路已成為世界各國的共識。This paper with the thermodynamic control characteristics for 320mw supercritical power generation units and one through boiler of the former soviet union for example, briefly analyzes some essential characteristic of control, measure and protection of supercritical generation units and one through boiler, finally analyzes control strategies of the feed water system, the combustion system, the steam temperature system, agc and the primary frequency control system
本文以前蘇聯超臨界機組熱控技術特點為例，簡要分析了超臨界直流爐大型機組控制、測量、保護的基本特點，並進一步分析了給水系統、燃燒系統、汽溫系統及agc 、一次調頻的控制策略。At present, the study of water in smooth helical tube, of which the main work is about critical heat flux ( chf ), is the primary concern of the research about the two - phase flow and heat transfer in curved pipe
目前螺旋管內兩相流動傳熱研究主要以光滑螺旋管內的兩相流動傳熱為主，其研究重點為臨界熱流密度（ chf ） ，但對製冷劑在微肋螺旋管內兩相流動傳熱還鮮見報道。分享友人