熱溫比 的英文怎麼說
中文拼音 [rèwēnbǐ]
熱溫比
英文
heat moisture ratio-
After analyzing purple soil sampled from neijiang, leshan ofsichuan provinec and yuanmou of yunnan province, the contrast results of microbe quantity feature between surface and subsurface purple soil were obtained as follows. the content of soil organic matter, total and available nitrogen, phosphorous and potassium of surface was higher than subsurface, not relating to the type of purple soil and soil utilization way. the quantity of microbe _ bacteria, actinomyces and mould in surface purple soil was higher than subsurface, which indicated that the organic matter and airy condition in surface soil was more suitable for microbes growing. there was the same tendency in profile change of microbe quantity in purple soil located in temperate _ humid climate of sichuan basin in contrast with dry _ hot climate of yuanmou, yunnan. the nutrient situation of purple soil in sichuan basin shown that state of surface was better than subsurface, while in yuanmou of yunnan the state was on the contrary due to the degradation of surface soil
實驗室對四川內江、樂山和雲南元謀不同類型紫色土表層和亞表層微生物數量特性的比較分析表明:土壤有機質、氮磷鉀全量及其速效量均表現為表層高於亞表層,與紫色土類型和利用方式無關;三大類土壤微生物細菌、放線菌和黴菌數量均表現出表層高於亞表層,表明紫色土表層的有機質和通氣性優于亞表層,適宜於這三大類微生物生長;溫濕氣候條件下的四川盆地和乾熱氣候條件下的雲南元謀其紫色土微生物數量的剖面變化具有相同的趨勢,唯土壤營養狀況在四川盆地紫色土中表現為表層優于亞表層,而在雲南元謀紫色土中由於表層土壤的退化作用表現為亞表層優于表層的相反情況。Recent experiments have succeeded in obtaining oscillations from the new system, with frequencies of 66hz and 23hz for the cases with helium and nitrogen as the working fluids, respectively. the traveling wave system is expected to be one of the good candidates as a driver for pulse tube refrigerator, leading to a thermoacoustically driven pulse tube refrigerator without any moving component
還利用deltae對環路部分進行了數值模擬分析,著重討論了系統的起振臨界溫度與臨界加熱功率、效率與加熱溫度的關系、噴射泵的作用以及不同工質(氮氣和氦氣)的比較等,得出一些有益的結論。Because the lattice vibration is weak at very low temperature, the contributions of electrics and other low energy excitations become dominant parts of specific heat. therefore, we can study the micromechanism of many physical phenomena from specific heat measurement
在很低的溫度下,由於晶格振動變得很弱,電子和低能激發貢獻越來越突出,這對我們通過低溫比熱研究很多現象的微觀機制十分有利。The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化,結果表明:採用普通工藝焊接時,葉片焊后殘余拉應力出現在焊縫及其附近區域,並且在葉片出水邊的熔合線附近(危險區域)出現了峰值;在採用優化的分段焊時,先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值,降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比,與冷卻面積成反比,並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。The measuring of low - temperature specific heat is an important and effective method to study the structure of electronic states, the atomic vibration of lattice, phase transition and structure of grain boundary
低溫比熱測量是研究固體的電子能態結構、原子點陣振動狀態、相變、界面結構等信息的重要的且很有效的手段之一。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。Research in low - temperature magnetic behavior caused by superexchange interactions among transition metal ions in various compounds, including the experimental measurement of magnetic susceptibility and specific heat
研究領域:過渡金屬離子化合物之合成與磁性研究,包括低溫磁化率與低溫比熱之量測。It is also a faster method to measure core body temperature than taking oral temperature
如要量度人體核心溫度,量度耳溫比口腔探熱更為快捷。That would be enough to have it rank among the hottest years on record, although the met office said would be unlikely to beat the current warmest year of 1998, which was 0. 94 degrees above the long - term average
這個溫度漲幅足以使2008年成為有氣象記錄以來最熱的年份之一,不過英國氣象辦公室稱, 2008年不可能突破1998年的水平, 1998年的全球氣溫比長期平均溫度高出0 . 94度,成為目前最熱的年份。In this paper, referring to qingju water power station, temperature control analysis and study has been done : study on the match ratio of the concrete and question of modifying of the special fine sand concrete to improve resisting ability of splitting of concrete ; study on the technology of the highly mixed fly ash to reduce the adiabatic temperature rise of concrete ; in case of the condition of resisting splitting to allow, study on the temperature control measure to strengthen and water the size of building, simplify the operational procedure, accelerate the construction speed, economize the expenses of the project
溫控問題成為青居水電站設計和施工的關鍵技術問題。 、本文對水工大體積混凝土溫控問題進行了分析和總結,結合青居水電站閘壩工程,開展溫度應力及溫度控制研究:研究混凝土的配合比及特細砂混凝土『改性問題,提高混凝土的抗裂能力;研究高摻粉煤灰技術,降低混凝土的絕熱溫升:在抗裂條件允許的情況下,研究施工過程中溫控措施的簡化,以加大澆築尺寸,簡化施工程序,加快施工進度,節約工程費用。Firstly, for jet array impingement cooling, the effects of the distance of adjacent holes, the impinging distance and jet reynolds number on heat transfer characteristic at the target wall are summarized under staggered holes arrangement and the same hole diameter. and then, the numerical simulation of inclined multi - hole film cooling has been studied. the influence factors examined in this case include blowing ratio and the distance of adjacent holes
首先通過對射流沖擊冷卻方式的研究,分析了相鄰孔間距、沖擊間距以及射流入口雷諾數對沖擊靶面換熱系數的影響情況,然後對多斜孔冷卻方式進行了數值模擬,重點探討了吹風比和相鄰孔間距對絕熱溫比與壁面換熱系數的影響規律,最後,針對沖擊-發散復合冷卻流場的計算物理模型,研究吹風比、相鄰孔間距的變化對沖擊-發散復合冷卻流動與傳熱特性的影響。The growth solution was adjacent to the most stability in virtue of the overheating time beyond 20 hours and overheating temperature beyond 15 * c of the saturation temperature of dkdp crystal growth solution
過熱溫度比飽和溫度高15 ,過熱時間達到20小時,溶液的穩定性接近最大。( 3 ) the saturated temperature of refrigerant - oil mixture has different definitions because of the superheat temperature of the mixture. one is the real saturated temperature of the mixture and the other is the saturated temperature of pure refrigerant corresponding to the tested pressure of the mixture. in this paper, the heat transfer coefficients based on the two different saturated temperatures are compared and the results showed the latter is larger
( 3 )由於製冷劑含油混合物過熱溫度的存在,使其具有兩種不同的飽和溫度定義,一種是所測實際溫度,另一種是所測壓力對應純工質的飽和溫度,文中就這兩種飽和溫度定義下的冷凝平均換熱系數進行了比較,發現後者大於前者。There come two questions when the temperature of gas is low. one is that metal consumed in air pre - heater is relatively more, due to lower temperature press and heat transfer coefficient. the other is that corrosion of pipe result from so2, which exists in gas
由於煙氣溫度低而產生了兩個問題:一個是傳熱溫壓小,管子所用金屬的消耗量相對比較多;另一個是受熱面的管內側金屬壁面容易出現低溫腐蝕。Exerting the model of two mechanism heat transfer, the formulation for heat transfer coefficient of liquid film which in smooth tube and equipped with spring inserts is given in this paper. heat transfer coefficient is presented which not only has relation to reynolds number, temperature difference, liquid characteristic, but also is greatly influenced by structure parameter of the spring inserts. experiments indicate the heat transfer coefficient of tubes equipped with spring inserts is 25 % higher than smooth tube
實驗表明,傳熱系數和液膜雷諾數、傳熱溫差、料液物性參數利彈簧插入物的結構參數有關,實驗條件下,安裝有彈簧插入物的豎管降膜蒸發液膜側的傳熱系數比光管的傳熱系數可高達25左右,但某些結構參數的彈簧插入物會造成傳熱的惡化。Pigg is stable when heating temperature is lower than 65 " c
當加熱溫度低於65時, pigg比較穩定。Abstract : it is demonstrated by comparing the measurements of the thermal conductances across ruby ball bearings and stainless steel ball bearings that the conductance across ruby ball bearings is larger and more sensitive to the temperature and the loads, but the contact thermal conductance between ruby balls and stainless steel races is less
文摘:通過紅寶石球軸承與不銹鋼球軸承的實測熱導比較,說明了在低溫條件下紅寶石球軸承的熱導較高,熱導受溫度和負荷的影響較大,但是紅寶石球軸承的接觸熱導較小。Ni ohmic contacts fabricated by traditional evaporation and thermal annealing on temperature of about 1000 have lower contacts resistances. the testing result on 400 does n ' t show it can keep thermal stability
按常規方法鍍鎳( ni )並經1000左右高溫退火得到的歐姆接觸具有更低的室溫比接觸電阻,但400高溫歐姆特性測試表明其熱穩定性不夠好。It is a symmetrically heated system, achieving pressure ratios of 1. 10 and 1. 06 with nitrogen and helium as the working fluids, respectively
在以氮氣和氦氣為工質,加熱溫度為400的情況下分別獲得1 . 12和1 . 06的最大壓比。The temperature of the exhaust heat during the process of yielding the oil and the remaining heat in the electricity plant is low, and they are usually been regarded as wasting heat and thrown away, but the temperature of these heat is higher than the temperature of the environment. if we can design the corresponding heat pump device and reclaim this part of heat, the economic benefit is very considerable
石油生產中的廢熱和電廠余熱溫度低,通常被當作廢熱扔掉,但這部分熱量的溫度比環境溫度高許多,設計相應的熱泵裝置,回收這部分熱量,經濟效益可觀,本文以石油生產和電廠余熱回收利用為出發點,研究熱泵技術在油田及電廠的應用。分享友人