溫差值 的英文怎麼說
中文拼音 [wēnchāzhí]
溫差值
英文
itd-
The box beam ' s temperature stress of longitudinal direction and transverse direction with different conformation are analyzed, it finds that there is largish temperature tensile stress in the bottom of top deck and the haunch of box beam increase temperature tensile stress in the bottom of top deck. the paper makes a study of different thermal effects resulted from several kinds of closed rigid frame
根據大量實測溫度場結果建議採用一個有利於理論推導的指數函數的公式來擬和箱梁體內的溫差分佈，既貼近實測數值，計算又比較簡單；通過對空腹式剛架拱橋尤溪洲大橋所在地夏季、秋季、冬季的溫度場及溫度應力的實測，以及與本文所提出計算方法的理論解進行的分析比較，證實了本文計算方法的正確，同時改進了已往混凝土箱梁溫度自應力的計算方法。Based on developed experimental testing facility, the shading performances of southing horizontal shading devices, vertical shading devices and integrative shading devices of external windows are measured, the performance parameters including indoor temperature, air - conditioned cooling load and shading coefficient as so on. and the shading coefficient of experimental test results and calculation results based on design standard for building energy efficiency are compared, and the windows5. 2 simulation results are compared also. the measured results are consistent with the calculation results of horizontal shading devices and vertical shading devices
本文利用研製的建築遮陽性能檢測裝置，對南向水平遮陽板、垂直遮陽板和綜合遮陽板外窗的遮陽性能（包括室內溫度、空調耗冷量和遮陽系數等）進行了實驗測試，並對遮陽系數的實驗測試結果與節能設計標準的計算值以及windows5 . 2軟體的模擬結果進行了比較分析，測試結果表明水平遮陽板和垂直遮陽板外窗的遮陽系數與計算結果比較一致，相對誤差分別為2 . 5 %和4 % ，而綜合遮陽板外窗的遮陽系數與計算結果的差值比較大，相對誤差達到10 %以上。In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production
論文具體分析研究了不同成形工藝過程中金屬流動的特點，並對不同凸模行程下溫擠成形過程中的金屬流動特點、坯料連皮厚度（底部高度）與溫擠壓成形工藝中的軸向界限尺寸的差值對金屬變形階段的影響進行了分析，獲得了坯料在不同凸模行程下的等效應變場、速度場等場變量及凸模行程-載荷曲線，同時對油泵定子成形過程的影響因素等進行了分析，優化並獲得了合理的溫擠成形工藝及模具參數。最後，利用模擬優化獲得的各項工藝參數進行生產實驗，得到實際生產出的合格油泵定子件，並將模擬結果與生產實驗結果進行比較。It shows that the injection quantity and the difference of temperature distribute as a parabola which is at the same load, and the minimum of the parabola corresponds to the optimum quantity of injection ( g ). under the condition that the quantity of injected mass, the air speed and the heat quantity is respectively g, v and q, the research demonstrates that the pentium iv chip ' s temperature variation can be controlled under 40c and work normally when the wind speed overpass 1. 5m / s and the power dissipation of the chip is 60w. otherwise this paper calculates the flooding limit of thermosiphon with several different methods
對其充灌量、散熱量、電子元件（ cpu模擬晶元）表面與環境溫度之差及通風、流速的影響進行了系統的測試，發現充液量與溫差的關系在負荷不變時呈拋物線分佈，其極小值點對應的充液量是最佳充液量g 。在充液量為g時，對風速v 、散熱量q進行的研究表明，當風速超過1 . 5m / s后，奔騰晶元在60w發熱條件下晶元溫度小於40 ，能滿足長期正常工作。Since the temperature difference was most important parameters in thermal effects calculation, a combined temperature difference method considered year temperature difference and day temperature difference was put forward. with the combined temperature difference obtained from field tests, a lot of calculations have been done by finite element method ( fem ), considering of different structural measures. the law of displacement and stress in cshbb was presented and a relative displacement formula was deduced
在介紹小砌塊建築的溫度作用分析方法的基礎上對溫度作用計算中最重要的參數? ?溫差取值進行了探討，提出了同時考慮年溫差和日溫差影響的組合溫差取值方法；根據各種不同的組合溫差取值方法，結合現場實測數據給出了試點建築的組合溫差取值，並考慮了不同構造措施的影響，對試點建築進行了有限元的溫度效應計算；給出了小砌塊建築的位移變化規律和應力變化規律以及層間相對位移的計算表達式。During the course of the research, the criterions of the interpolation effect are mean error ( me ), mean absolute error ( mae ), root mean squared interpolation error ( rmse ) and the difference of mean square deviation between the measured and the estimated surface air temperature. the conclusions are as follows : ( 1 ) by contrasting the gaussian weighted model associated with the error modification with the gaussian weighted model, the error modification is proved to considerably ameliorate the precision of spatial interpolation ; ( 2 ) on the base of the gaussian weighted model, taking altitudinal effect into account can reflect the trend in which temperature changes according to the topographic altitude and may ameliorate the precision of spatial interpolation correspondingly and apparently, which indicates that topographical effect on the preciseness of spatial interpolation can not be disregarded in terms of the region with complicated topography ; ( 3 ) the map of daily surface air temperature distribution, using the modified gaussian weighted model a and b, can accurately reflect the temperature - changing - with - topographical - altitude trend. among them, the better is the model a, whose me is below 0. 03 ?
在此過程中，採用平均誤差（ me ） ，平均絕對誤差（ mae ） ，插值平均誤差平方的平方根（ rootmeansquaredinterpolationerror ，簡稱rmsie ） ，插值前後測站要素值的均方差（ meansquaredeviation ，簡稱msd ）差值作為判定插值效果的標準，得出如下結論：通過高斯權重法與結合逐步訂正的高斯權重法的對比，說明結合逐步訂正方案的高斯權重法可大大提高地面日氣溫的插值精度；在高斯權重法中加入海拔影響項可以反映出溫度隨地形高度的變化趨勢，同時也能較大地提高地面日氣溫的空間插值精度，說明在地形復雜的區域，地形影響在插值精度中是不可忽略的；對于高斯權重法的兩種改進方案得到的地面日氣溫分布圖都能很好地反映出表面大氣氣溫隨地形高度的變化趨勢。The temperature field along the axis, axial velocity, the turbulent energy, and the concentration of the particles were investigated when the temperature field varied. the numerical experiment shows that the thermophoresis force changes the concentration of the 2 - micron particle, decreasing in the main flow and increasing in the near - wall region
數值實驗的結果表明在兩相流模型中添加熱泳力源項會對2微米顆粒在流場中的濃度分佈有很大的變化，主流區的顆粒濃度降低，近壁區顆粒濃度在溫差不大的時候，提高幾十倍。The result of numerical simulation shows that 51 temperature difference rises in the condition of existing descaling parameters, which is in accord with actually measured value
數值計算結果表明，在現有除鱗條件下鋼坯上表面溫差可達51 ，該數值模擬結果與實測值基本吻合。Aiming at the obvious temperature difference on the slab surface after descaling in hot rolling mill, this paper studied the parameters of the descaling system and numerically simulated the descaling quenching process
摘要從熱軋廠除鱗后板坯表面所產生的明顯溫差入手，研究了除鱗系統的參數配置並對除鱗冷卻過程進行了數值模擬。In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction
在研究過程中，採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統進行了綜合診斷，具體結果包括如下： （ 1 ）完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試，結果發現：鉛塔燃燒室內水平方向的煙氣溫度並非均勻，而且其溫差比上下方向的溫差更大，以及鉛塔燃燒室尾部存在co未燃燼問題； （ 2 ）為了保證鉛塔煙氣系統的正常工作，對煙道系統的阻力進行了理論計算及測試分析，結果發現：鋅精餾鉛塔煙氣系統中煙囪抽力不夠，這主要是煙道結構不合理所造成的。Secondly, other parameters such as temperature difference and emissivity of target and sky, molecular absorptive transmittance, instantaneous field of view ( ifov ), contrast threshold and radiant wavelength are discussed in detail
然後，對目標天空背景溫差、發射率，氣溶膠衰減系數，瞬時視場、對比度探測閾值以及輻射波長等參數作了詳細討論。Alter calculating the residual loads with the latest 15 - day forecasting results and actual values, the weather factor can be taken account to improve the forecasting precision by regression analysis between the sensitive residual loads and temperature
若將最近15天左右預測值與實際負荷值之間的差值，再通過各敏感點負荷與平均氣溫等作回歸分析，可以實現考慮天氣的負荷求導法。( 2 ) the change of ratio of spans has a great effect on the whole bridge under dead load and sunshine temperature differential. on the contrary, it has a smaller effect on the bridge under annual temperature change
（ 2 ）跨徑比值變化，對主梁、橋墩在自重荷載與日溫差作用下的受力有較大影響，而對主梁、橋墩在年溫度變化荷載下的受力影響較小。By the comparison of calculation result with the tests result, it was concluded that the method to calculate the year temperature difference and day temperature difference from weather data was feasible. by this method, it was got that the statistic parameters of combined temperature difference in base period and the reliability to different anti - crack index was calculated the combination of thermal effects and load effects was considering in this paper
對多年氣象資料進行了統摘要浙江大學博士學位論文2003計分析，將其轉化為結構的年溫差和日溫差，並與實測值進行了比較;在此基礎上得到了設計基準期內的結構組合溫差統計參數以及不同抗裂指標所對應的可靠度。The experimental models not only can be introduced into low temperature waste - heat power generation, but also can be available in the geothermal, solar and ocean thermal gradient power generation
該項研究的實驗模型不僅可以利用在低溫余熱發電系統，而且對地熱、太陽能及海洋溫差發電均有參考價值。On the basis of the analysis of fundamental principle of thermoelectric refrigeration, the steady state mathematical model of the thermoelectric system was founded. according to the model, the theoretical analysis and calculation are made on various working conditions, and analyzed theoretically the effects on thermoelectric system which caused by hot and cold temperature difference, the device ’ s effective system figure of merit, the properties of the heat changers, which established theoretical basic for the opening up and design of the thermoelectric system and its performance test
在分析熱電製冷基本原理的基礎上，建立了熱電裝置的穩態系統數學模型，並依據該模型對熱電裝置系統進行了不同的工作狀態下的熱力分析計算，並就熱電裝置的冷熱端溫差、電堆片的優值系數、散熱器的散熱性能與熱電熱泵裝置性能的影響進行了理論分析，為熱電裝置的開發設計和現有熱電裝置的性能測試建立計算理論基礎。According to the laplace transformation method and superimposition principle, theoretical solutions of the effect of three typical bin ' s surface protecting methods of thermal insulation were given. based on the solutions, the characteristics and rules of three insulation procedures were analyzed in numerical calculation. the research results of this paper are valuable for engineers to design economical and viable bin ' s surface insulation way
利用拉氏變換方法及疊加原理，求解出保溫板保溫、倉面噴霧、流水養護這三種常用倉面保護方式降溫效果理論解答；並基於此理論解答，對三種倉面保護方式的特點及規律進行了研究，從數值上分析了幾個影響溫度變化的主要因素：保溫板厚度、內外溫差梯度，距表面不同深度等對每種保護方式降溫效果的影響。According to negative temperature coefficient of vbe and positive temperature coefficient of vt, a framework of band - gap voltage reference is investigated. the reference offer a source of pir, distributed three voltage, one as upper - threshold voltage of dual - threshold comparator, the other as lower - threshold voltage of comparator, the other as direct current voltage for second band - pass filter amplifier
同時利用pnp晶體管發射結電壓的負溫度特性和發射結差值電壓的正溫度特性設計了一個帶隙基準電壓源。此帶隙基準電壓源本身作為熱釋電紅外傳感器的電源電壓，同時分壓提供雙限電壓比較器的上限電平和下限電平以及第二級帶通濾波放大器的直流電平。However, when it was too high or too low, its influence became much weak. we analyzed also the relationship between temperature and the elements such as planting ratio, streets direction, and l / h. the result showed that : the temperature in w ~ e oriented streets was always higher than that in n - s oriented streets, with an average : 0
對綠化率、街道走向、街寬與周邊建築高度比l h等因子進行正交分析的結果表明：株洲市夏日白天東西走向街區的溫度總比南北走向街區的溫度高，平均高0 . 6 ? 0 . 7 ； l h越小，兩者差值越大，最高時達1 . 4 ? 1 . 8 。The results showed that the color difference was decreased, at the same time, the loss of the soluble protein and amino acid contents were decreased with increase of sample moisture and decrease of barrel temperature ; when increased the revolving speed, the color difference was decreased as a whole meanwhile the contents of soluble protein and amino acid were increased at the beginning and decreased in the end
結果顯示，提高進料水分，降低機筒溫度，有利於降低擠壓蛋黃粉的色差值，並能減少可溶性蛋白質和氨基酸的損失；螺桿轉速提高，擠壓蛋黃粉的色差值呈總體降低趨勢，而可溶性蛋白和氨基酸的含量呈先提高后降低的趨勢。分享友人