顯熱因子 的英文怎麼說
中文拼音 [xiǎnrèyīnzi]
顯熱因子
英文
sensible heat factor-
The major performances of concrete and mortars, which are mixed with different quantities of expansion admixtures under the same mix proportions, are studied systematically and deeply in this work. sulphoaluminate mixed with a type of new expanding component by use of the composite methods are studied in the laboratory, and some achievements have been obtained. the service conditions, the characteristics and the shortcomings of expansion admixture in the concrete engineering are analyzed and summarized based on literatures, and the expanding mechanism of concrete is discussed
本文試圖從膨脹劑不同摻量研究其對混凝土和砂漿主要性能的影響，進行了一系列宏觀力學性能試驗研究；利用差熱分析（ dta ） 、掃描電子顯微鏡（ sem ）等分析手段對鈣礬石等水化產物的結晶和生成量、形貌特徵進行微觀分析；並採用復合方法摻加新型膨脹組分對硫鋁酸鹽類膨脹劑（ uea ）進行了改性試驗研究，根據多因素模糊綜合評價方法就各類膨脹劑的主要性能進行綜合評價，得出摻加新型膨脹組分pt的膨脹劑性能較優，取得了明顯的效果。The author has done much research work in examining the functions of raw materials, as well as making graph analysis of the raw material. as a result, achievement have been made : ( 1 ) making sure of the standard factor and t he best mixture proportion, ( 2 ) finding out the best way of measuring the index of the high performance concrete, ( 3 ) the endurance of this high performance concrete and the volume stability have been experimented ; ( 4 ) the great economic and social benifit are obtained by cost analysis
其主要工作進行了各種原材料的性能檢驗並做出相應圖表分析；對摻超細礦渣粉末的高性能混凝土進行正交試驗，確定了主要水平因子和最佳配合比；通過對高性能混凝土的耐久性試驗及高性能混凝土的體積穩定性試驗，確定檢測高性能混凝土耐久性指標的最佳方法及高性能混凝土的熱脹冷縮率和體積穩定性；通過對高性能混凝土的成本分析，確定摻超細礦渣粉的高性能混凝土其經濟效益和社會效益非常顯著。Carbon and oxygen isotope data show that the carbonatite layer in fozichong ledge is different from the normal marine sedimentary carbonatite, infering that its formation has relation with hot - water sedimentary activity
碳、氧同位素顯示，佛子沖礦田賦礦層位中的碳酸鹽巖地層與正常的海相沉積碳酸鹽巖不同，其成因與熱水沉積活動有關。The study also reveals the relationship between pasture ' s growth period, yield and their relation to weather factors and the evolvement characters of grassland vegetation under the background of drought climate, and refers to the main factors of the influence on grass - turn - green period as water condition in qinghai lake areas, and the main factors as the quantity of heat in the southern area of qinghai. because of the drought in the " three rivers source area ", the growing season is shortening and the production of the grass is decreasing clearly
揭示了牧草生育期、產量以及群體結構與氣象因子之間的關系和氣候乾旱化影響下草場植被的演變特徵，提出了影響環湖地區牧草返青期的主要因子是水分條件，影響青南地區牧草返青的主要因子是熱量條件， 「三江源」地區由於氣候乾旱化，導致牧草生長季呈縮短趨勢，牧草產量明顯下降。The electron gun and coil inside the display will produce temperature, therefore are ventilate holes to dispel the heat on left and right sides and the above of the chassis. please try to prevent the dust from invading. too many dusts will cover electronic part and influence the heat dissipation, which will reduce the life - time of the spare parts
顯示器因電子槍及線圈連續運作而會產生溫度，所以在機殼的左右及上面都會有透氣孔散熱，應盡量避免灰塵侵入，因為過多的灰塵覆蓋在電子零件上，會影響散熱效果，降低零組件的壽命。Furthermore, the growth and the study of self - organized quantum dots structures become more and more important recently, and the application of self - organization technique become wider and wider in this thesis, we address the theory of film growth and the growth technique firstly more, the ways and characteristics of surface detection are prescribed we mainly report the growth process, results and discuss of self - organized quantum dots structures in the a12o3 substrates by s - k mode using ecr - mocvd, in the espd - u device the growth art of ain epilayer which is the preliminary foundation of self - organized gan / ain quantum dots structures, including the substrate cleaning, nitridation, the growth of buffer and the growth of gan and ain epilayer, is discussed we deliberately compare the test result of rheed xrd and afm and achieved the optimalized condition of ain at last we have successfully realized the growth of ain which is much smooth and better crystal quality moreover, we grow the self - organized gan / ain quantum dots structure in s - k mode because the limits of the heater temperature, we can not grow the atom - smooth epilayer of ain until now so we could not grow better quantum dots which have small diameter and big density but the self - organized quantum dots structures with better quality will be realized successfully if the substrate temperature is increased the thesis study belong to my tutor subject of national nature science foundation ( 69976008 )
本論文主要論述了在espd - u裝置上，採用電子迴旋共振等離子體增強mocvd （ ecr - pamocvd ）方法，在藍寶石襯底上通過s - k模式自組裝生長gan aln量子點結構的生長工藝、結果及討論。而重點分析了自組裝生長量子點之前的aln外延層生長工藝，包括襯底清洗、氮化、緩沖層的生長和gan 、 aln外延層的生長；通過高能電子衍射、 x射線衍射和原子力顯微鏡測試，並且對這些測試結果進行了詳細的比較研究，得出了較優化的工藝條件，生長出了晶質較好、表面較平整的aln外延層；進而採用s - k模式自組裝生長了gan aln量子點結構。由於實驗裝置加熱爐溫度的限制，我們沒有能夠生長出原子級平滑的aln外延層表面，因而沒能夠生長出密度比較大和直徑比較小的量子點。With the development of electronic technology in the field of high - frequency and high - power, power mosfet is gradually enhancing its important status in semiconductor apparatus and is being widely applied in power converters as switch. with the increasing of the operating frequency ( > 200khz ), the energy loss caused by parasitic capacitance will affect the efficiency of power transforming in converters. especially in the applications of high frequency power supply using mosfet as main devices ( the unit of frequency is mhz ), the energy loss caused by the switch process will badly affect its efficiency
隨著電力電子技術進一步向高頻的大功率用電領域發展，功率mosfet在各種電力半導體器件中的重要地位日益顯著，使用功率mosfet作為開關器件的功率轉換電路也日益增多，但隨著器件開關頻率的提高（大於200khz ） ，由器件極間電容引起的能量損耗將會影響到功率轉換電路的能量傳輸效率，特別是在以mosfet作為開關器件的高頻感應加熱電源中（工作頻率可達兆赫） ， mosfet在開關過程中的能量損耗嚴重影響到電源的效率，因此如何減小開關器件的損耗提高高頻功率轉換線路的效率成為電力電子技術領域的重要研究課題之一。By increasing the h2 dilution ratio, it is found that atomic hydrogen can selectively etch amorphous phase and stabilize crystalline phase. from the study on the distance from substrate to catalyzer, choosing a proper distance can ensure the gas fully decomposed, while a relatively low substrate temperature can cause the nanocrystalline particles to lose mobility and keep their sizes. the pre - carbonization process can enhance the nucleation density and make the growth of high quality nanocrystalline p - sic films much easier
實驗結果表明：隨著工作氣壓的減小，薄膜的晶粒尺寸有所減小；通過提高氫氣稀釋度，利用原子氫在成膜過程中起的刻蝕作用，可以穩定結晶相併去除雜相；選擇適當的熱絲距離能保證反應氣體充分分解，又使襯底具有較高的過冷度，是形成納米薄膜的重要條件；採用分步碳化法可以提高形核密度，有利於獲得高質量的納米- sic薄膜；襯底施加負偏壓可以明顯提高襯底表面的基團的活性，因負偏壓產生的離子轟擊還能造成高的表面缺陷密度，形成更多的形核位置。This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory
本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。The unstable stacking of layers of org - mmt was easily damaged under force and heat. hence, it is very important to decide the process temperature for preparing the composites, and it was found that 200 was a upper limitation of temperature
由於在高熱（ 200以上）或強機械剪切作用下，蒙脫土層狀堆疊結構會坍塌，導致不能與聚合物分子作用生成聚合物?層狀硅酸鹽納米復合材料，因此熔融插層的溫度選擇顯得十分重要。Poly - crystallization silicon thin film transistor ( p - si tft ) addressing liquid crystal display has been currently the research and development focus in the field of flat panel displays, as it is most feasible approach to high resolution, high integration and low power consumption as a result of its high aperture ration. there are less number interface of the crystal grain, lower metal impurity and higher mobility in the electric current director, the milc p - si tft has been the research focus in the fields of amlcd, projection display, oled etc. there are vast dangling bonds and bug
多晶硅薄膜晶體管（ p - sitft ）液晶顯示器可以實現高解析度、高集成度、同時有效降低顯示器的功耗，因而成為目前平板顯示領域主要研究方向;而以橫向晶化多晶硅為有源層的tft由於在導電方向有更少的晶界、更低的金屬雜質污染、更高的載流子遷移率而成為目前有源矩陣液晶顯示領域、投影顯示、 oled顯示等領域研究的熱點。( 1 ) the got by experiment may contain thermal contributing by electrons and this part is not can be ignored. ( 2 ) got by thermal dynamic experimental data under normal temperature and pressure can be a standard for various theoretical models, but its precision should be analysis carefully before to use. ( 3 ) the method of using the migault ' s formular associate tuning up parameter to express which often be used is not very reasonable
本文第3章就gr neisen物態方程研究了三方面問題：第一方面，在分析了幾種不同定義的gr neisen系數的區別與聯系的基礎上指出， （ 1 ）在沖擊壓縮區，直接依據實驗數據獲得的往往包含不可忽略的電子熱貢獻； （ 2 ）常態熱力學可作為檢驗gr neisen系數理論模型的一個標準，但應注意該實驗測量值的精度（包括由於實際材料中存在的「非三項式物態方程因素」的影響） ，而所總結的在周期表上所具有較明顯的規律性，可作為對該值精確程度判斷的參考； （ 3 ）指出一種以調節參數的migault公式描述的常用方法的基礎與實際情況並不相符。But the absorption efficiency, stokes efficiency, quantum efficiency and the superposition efficiency between pump mode and cavity mode is less than one respectively, so the local heat absorption of the crystal is quite strong, and its thermal effect is quite obvious. two measures were taken
但是，由於量子效率小於1 ，斯托克斯頻移，泵浦光與基模的非完美空間重疊以及激光晶體的偏振吸收等因素積聚在晶體內的熱量隨泵浦輻射而變化，出現更為復雜和明顯的熱透鏡效應。The factors relevant to montmorillonite intercalation and exfoliation were analyzed through x - ray diffraction ( xrd ), thermogravimetry ( tg ), transmission electron microscope ( tem ), scanning electron microscope ( sem ) and fourier transform infraredspectroscopy ( ft - ir ). the morphology, structure and properties for the composites were discussed
通過x -衍射（ xrd ） 、熱重分析（ tg ） 、透射電子顯微鏡（ tem ） 、掃描電子顯微鏡（ sem ）以及傅立葉變換紅外光譜（ ft - ir ）的表徵結果討論了影響蒙脫土剝離的因素，分析了復合材料的形態結構和性能。1, the histone deacetylase inhibitors were used to feed the larve of the fly, and then the polytene chromosomes were observed under the microscope. the results indicated that the histone deacetylase inhibitors had effects on the morphology of the polytene chromosomes. it is suggested that the acetytion has effects not only on the molecular interaction but also on the structure of the chromosomes
得到的主要結果和結論如下： 1 ，通過用去乙酰化酶抑制劑處理果蠅幼蟲，觀察果蠅多線染色體在熱休克基因處的形態變化，發現去乙酰化酶抑制劑介導的乙酰化水平的升高可引起染色體結構的顯著變化，推測乙酰化修飾不僅影響分子間的相互作用而且還可以影響染色體的高級結構。Moreover, the sio2 / tio2 composite thin film showed the lowest pl intensity due to a decrease in the recombination rate of photo - generated electrons and holes under uv light irradiation, which further confirmed the film with the highest photocatalytic activity at 700 c. when the calcination temperature was higher than 700 c, the decrease in photocatalytic activity was due to the formation of rutile and the sintering and growth of tio2 crystallites resulting in the decrease of surface area
同時，此時sio _ 2 / tio _ 2復合薄膜的熒光光譜顯示最低的熒光強度，這表明此時薄膜中的光生電子和空穴的復合速率最低，因而更有利於物質的光催化降解。當熱處理溫度高於700時，武漢理工大學碩士學位論文薄膜的光催化活性下降，這是由於薄膜中晶相二氧化欽的燒結和成長導致樣品的表面積下降以及金紅石相的形成。Because the neutrino energy loss rate in strange matter is much higher than that in neutron matter, the surface temperature of a young strange star is lower than that of an ordinary neutron star of the same age
奇異星與中子星的表面熱輻射特性有顯著的不同。由於奇異物質發射較多中微子，所以能量損失速度較快，因此一顆年青的奇異星，表面溫度會比同年的中子星為低。分享友人