溫度極大值 的英文怎麼說
中文拼音 [wēndùjídàzhí]
溫度極大值
英文
temperature maximum-
The altitude of maximum temperature is called the stratopause.
極大值溫度的高度稱為平流層頂。At first, analysis of extreme temperature ' s spatial distribution of variety trend shows that the minimum temperature in the north are going up while the maximal temperature in east china declining widely, which is a numerical characteristics of prevailing warmer - winter in recent years. so the change of minimum and maximal temperature are dissymmetrical
首先從總體上，分析極端最高和極端最低溫度變化趨勢的空間分佈：北方地區極端最低溫度普遍上升，且幅度較大，是近年來暖冬盛行的一個數值化特徵；極端最高溫度在東部普遍下降，最低最高溫度變化具有不對稱性。On the surface of msta, there exists true dipole mode in the indian ocean, that ' s to say that if the temperature anomaly in the western indian ocean is positive, it is much likely that there is negative anomaly in the eastern indian ocean. dipole mode also exists in the pacific as that in the indian ocean. by virtue of the walker circulation and the similar circulation above the indian ocean, it is showed that the air - sea interaction events in the tropical pacific and the indian ocean develop with each other at the same time
由於在次表層海溫距平極值面上，熱帶西、東印度洋的海溫距平呈真正意義的偶極子模態，即當西印度洋海溫距平為正（負）時，東印度洋海溫距平為負（正） ，偶極子模態的海溫距平分佈在熱帶太平洋同樣存在，兩大洋海溫距平的偶極子模態間有密切的聯系，結合walker環流和印度洋上空的類似walker環流，進而指出熱帶印度洋和太平洋海氣相互作用事件是協調發展的。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 static triaxial test of two engineerings shows that the breaking strength of asphalt concrete declines significantly as the temperature rises and the strain increases noticeably when breaking. increase in the asphalt content leads to decrease in tangent modulus and cohesion, but the internal friction angle tends to increase. increasing confining stress results in the augment of the maximum stress and the ultimate value of volumetric strain
兩個實際工程的靜三軸變形與強度試驗表明，隨著溫度升高瀝青混凝土破壞強度明顯降低，破壞時應變明顯加大；瀝青含量的增加會導致切線模量和凝聚力降低，但內摩擦角趨于增加；周圍壓力增大會導致最大應力_ d增大，其體變壓縮極限值也越大。The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。The experiment result shows that the operating conditions have a significant effect upon the chromium content, and it increased with the raise of current density and ph value, but decrease with the temperature raise of the bath
溫度、 ph值、陰極電流密度對鍍層中鉻含量的影響較大。試驗結果表明：降低溫度、提高ph值和陰極電流密度有利於提高鍍層的含鉻量。In the article, the mechanism of temperature field has been researched and the math model of 3d unsteady temperature field is established according to analyze the cracking reason, produce mechanism of temperature crack, the specialty of crack in mass concrete. the thermal conduction equations are converted into extremum of functional analysis through calculas of variations
本文通過對大體積混凝土裂縫的成因，溫度裂縫的產生機理，溫度裂縫的特點，研究了大體積混凝土溫度場機理，建立了數學模型，並用變分原理將三維瞬態溫度場的熱傳導方程問題轉化為泛函的極小值問題。The magnitude of the conductivity maximum increases and shifts to lower temperature with increasing sr content. in this paper, the electrical conductivity reaches maximum value at x = 0. 4. below the temperature corresponding to the maximum value, the electrical conductivity is found to follow the relationship for the small polaron hopping mechanism, charge compensation of oxygen vacancy dominates electrical conduction at high temperature, and oxygen vacancy acts as traps to catch carriers, resulting in the decrease of carriers concentration and mobility
通過電學和熱學性能測試結果表明，電導率隨著sr含量的增加以及溫度的變化都出現了極大值，在本論文中，在sr含量為0 . 4時電導率值最大，電導率最大值對應的溫度隨著sr含量的增加而降低，這是由於在低溫下以小極化子導電機理為主，在高溫階段則是氧空位的電荷補償占據主導作用，氧空位使得載流子的濃度和可動性減弱，從而導致電導率降低。Sixteen sup - processed from 110k to 300k were found. the range of trap energy is from 0. 19ev to 0. 34ev. the maximum of the initial density distribution of the carrier in the traps locates 0. 23ev, and the curve deviated from guass type
本文採用一種tl曲線的自動分解技術，對硅橡膠輻照老化tl曲線進行了自動分峰，結果發現在110k ~ 300k的溫度范圍內有16個子過程，其陷阱活化能變化范圍為0 . 19 ~ 0 . 34ev ，被陷阱俘獲載流子初始濃度的分佈在0 . 23ev處具有極大值，且呈偏離高斯型的分佈。The results showed that the 11 measured cooking and eating quality properties and taste value have manium significance genetic difference ; among the cooking and eating quality properties, varietal variation coefficent of gel consistency, peak viscosity, break down, setback is relatively large ; every cooking quality property has a different correlation with eating quality property, initial pasting temperature, finial viscosity, consistency and setback have significant or maximum significant inverse correlation with taste value, while peak viscosity, break down has a postive correlation with taste value, amylose content and protein content are inversely related to taste value, but gel consistency are positively related to taste value another, the correlation among varietal cooking and eating quality properties is significant or maximum significant ; in the analysis of principal components, the cumulative percent of 4 selected principal components reached 90. 58 %, initial pasting temperature of large second principal components is small, but amylose content and protein content is high, finial viscosity, consistency are large
結果表明，所測定的11項蒸煮食味品質特性及味度值在供試品種間均存在著極顯著的遺傳差異；在蒸煮食味品質特性中，膠稠度、最高粘度、下降粘度值、粘滯峰消減值的品種間變異系數較大；糊化開始溫度、最終粘度、回冷粘滯性恢復值、粘滯峰消減值與味度值呈顯著或極顯著的負相關，而最高粘度、下降粘度值與味度值呈極顯著的正相關，直鏈澱粉和蛋白質含量與味度值呈負相關，而膠稠度與味度值呈正相關；在主成分分析中，被入選的4個主成分的貢獻率達90 58 ，其中第二主成分大的品種，糊化開始溫度低，直鏈澱粉和蛋白質含量高，最終粘度和回冷粘滯性恢復值大。The increase of radiative transition rate with decreasing particle size was attributed to the lower symmetry surrounding the eu3 + ions, while the increase of nonradiative transition rate to the extra nonradiative transition channels caused by surface defects. ( 3 ) under excitation of 488 nm, temperature - dependence of emission intensity of the 5d4 - 7fj transition in nanocrystalline y2o3 : tb was studied. in nanocrystalline, there appeared two maximal intensities
（ 3 ）研究了488nm激光激發下不同顆粒尺寸的y _ 2o _ 3 ： tb納米晶熒光發射強度隨溫度的變化規律，發現y _ 2o _ 3 ： tb納米晶熒光發射強度在280k與590k存在兩個極大值，而體材料只在280k有一個極大值。The cathodes both of the prepared tungsten - based barium - tungsten cathode and mixed metal barium - tungsten cathode have, not only high current density, but also a long life, simplified procedure and stable performance, and so on. and we made certain two good additives cr2o3 and ni2o3 that make the cathode performance more excellent
2 ）對不同元素配比的二元和三元混合陰極基底的制備工藝和發射性能開展了實驗研究，在增大發射能力，延長壽命和降低燒結溫度等方面有重要進展，取得了有價值的階段成果。According to the maximum entropy method, a program applied to compute reliability of cwr dynamic stability is worked out and put into practice to analyze reliability of cwr dynamic stability, getting the safety allowable temperature under design reliability index
根據反應極值最大熵擬合法編制了無縫線路動力穩定性可靠度計算程序，分析了高速鐵路無縫線路動力穩定性的可靠度，得到滿足目標可靠指標的允許溫升。For the sample with the content of fe2o3 is 9 %, the maximum mr value of the composition ( lao9sroimno3 ) o9i ( fe2o3 ) oo9 increased in the negative direction, and get the maximum - 7 % at 337k ; with the content of feio increased, the mr of the composition increased also, when the content of fe2o3 is 17 %, the maximum mr value of the composition ( lao. gsro imno3 ) o. 83 ( feio o. n can reach - 30 % at 338k, where applied magnetic field is 1. 5t
含量為9的樣品，樣品的磁電阻值在238k時隨溫度的升高而逐漸向負的方向增大，在337k時達到極值7 ；對于fe 。 oz含量為門的樣品，樣品的磁電阻值在265k時隨溫度的升高而逐漸增大，兩種不同比例的復合體系都在很寬的溫區內表現出較大的磁電阻，尤其後者，在1 st外場作用下， 338k時mr達到極值30 。Heat island intensity in chengdu city is generally between 5 and 7, and it could reach 8 or higher at some areas in spring afternoon ; what is more, heat island intensity becomes weaker near the urban center, and the acreage of heat island in the eastern suburb is reduced, at the same time, the heat - island develops obviously in the southwest of the city
成都市區熱島強度一般為5 ~ 7 ，局部地方極值可達8以上；市中心區熱島強度相對減弱，東部工業區熱島高溫區面積逐漸縮小，市區西南部熱島明顯發展，致使2003年起熱島次高溫區在二、三環路附近大致呈環狀分佈。分享友人