And, theoretical and experimental studies have been carried out of the performance of the heat transfer enhancement by adding a proper amount of nanoparticles to the thermosiphon with water as the working fluid. Compared with the ordinary thermosiphon, results indicate that this heat pipes posses such advantages as good startup, lower tube wall temperature, and its heat transfer coefficient is increased by 47～96%, heat flux is increased by 7.6～15% in the range of the experiment. The performance of the heat transfer relates to the diameter and the volume fraction of nanoparticle.

理論和實驗的研究了這種熱虹吸管蒸發(fā)段的工作特性H动漫全彩纯肉无码，結(jié)果表明一级毛片特黄久久免费看按磨站，與普通熱管相比較，這種新式熱管具有很好的啟動特性，低的管壁溫度国产高91亚洲精品福利在线播放，換熱系數(shù)提高了47～96％，軸相熱流率提高了7.6～15％日韩妓女精品影院视频在线观看网站，其換熱性能隨納米顆粒粒徑的減小而增大一级黄色网站高清无码，隨納米顆粒加入量有所增加，當超過一定量時換熱性能反而降低了在线免费一级AV电影。

Based on the principle of modified corresponding state,an equation to calculate the thermal pressure coefficient s of liquids over a wide temperature range from the triple point to the critical point was established, which has only a molecular size-dependent parameter.

根據(jù)改良的對應(yīng)狀態(tài)原理免费黄色视频一二三区，建立了一個新的液體熱壓力系數(shù)計算公式，可適用于從三相點到臨界點的寬闊溫度范圍亚洲综合网色五月。

Based on the heat balance equation of the vegetation canopy layer and the assumption that its short wavelength absorptance, long wavelength emissivity, heat or moisture transfer coefficient, and bulk stomatal resistance are random, uncorrelated variables with normal distribution densities, the theoretical modeling for IR radiance statistics of vegetation canopy surface is presented by Monte Carlo simulation, with the surface radiative temperature statistical distribution given.

根據(jù)植被層能量熱平衡方程加勒比在线观看视频，選取植被短波吸收率、長波發(fā)射率狠狠婷婷五月综合、熱與水汽傳輸系數(shù)和氣孔阻力為獨立的隨機變量，并假設(shè)它們均服從正態(tài)分布自拍三级青草，利用Monte－Carlo方法在线青草草永久视频免费播放，模擬計算了植被表面紅外輻射的統(tǒng)計特性。

In the first part, it was investigated the interaction between Pb2+ and La4Ti9O24 ceramic bulk. The result shows that a significant Pb2+ diffusion into La4Ti9O24 ceramic bulk and a significant crystallization of the La2/3TiO3-type phase is clearly observed in the Pb2+ diffusion layer. The reacted zone consists of the La2/3TiO3-type phase exhibits the linear dependence of the square of the thickness, x, on the heat-treated time, t, in excellent agreement with the parabolic law x2 = kt, where k is the growth rate coefficient. The kinetic study thus indicates that the Pb2+/La4Ti9O24 interaction strictly obeys the theory of the reactive diffusion. Furthermore, the experimental k values were used to determine the associated activation energy, Ea, for the formation of La2/3TiO3-type phase using the Arrhenius plot and the following least-square equation, ln =-Ea/RT + A, where T is the annealing temperature, R is the universal gas constant, and A is a constant, resulting in Ea ~ 607 ?b 60 kJ/mol.

首先777久久激情久久综合， 以巨觀的方式觀察PbO與La4Ti9O24陶瓷體介面的反應(yīng)現(xiàn)象在线免费看视频黄；利用X-ray繞射分析以及掃描式電子顯微鏡來觀察不同的熱處理溫度以及不同的持溫時間所制作的樣品，研究結(jié)果發(fā)現(xiàn)免费看所有乱伦黄色视频， Pb2+離子會滲入到La4Ti9O24陶瓷內(nèi)激情黄色网址，同時在Pb2+離子所滲入的區(qū)域內(nèi)會產(chǎn)生新的La2/3TiO3-type鈣鈦礦斜方晶相；藉由量測不同溫度與時間之樣品天天夜夜操操，其因Pb2+離子滲入而產(chǎn)生之La2/3TiO3-type相層厚度之關(guān)系日韩爆乳教师无码视频，符合反應(yīng)式擴散機制中 x2 = kt 之關(guān)系式(其中 x：擴散層厚度； k：反應(yīng)速率常數(shù)日韩福利在线视频播放免费； t：反應(yīng)時間)永久免费Av无码网站,国产；進一步將不同實驗條件所得到之反應(yīng)速率常數(shù)值代入Arrhenius方程式ln (k =-Ea/RT + A ，其中Ea：活化能717午夜理论电影网； T：絕對溫度手机看片,你懂的； R：氣體反應(yīng)常數(shù)； A：常數(shù)湿女孩视频网站，可以求得Pb2+離子與La4Ti9O24陶瓷發(fā)生反應(yīng)式擴散所需之活化能為607 ± 60 kJ/mol鲁鲁A片特级特色黄色影片。

The wavelet variance verification also indicates that the first main period of the runoff of mountainous watershed in the Shiyang River Basin is 30years, and 22years and l5years are the second and third period respectively; 3 Then we also compared the total runoff of mountain watershed with climate factors of Wushaoling which station is in the mountain headstream area, such as precipitation and temperature, the data record that the correlation coefficient of annual runoff and precipitation variation over the upper reaches in the Shiyang River Basin is 0.61 ,which indicates precipitation is the main water recharge of the runoff.

石羊河流域出山口年徑流的周期變化與烏鞘嶺站年降水量和年均氣溫周期基本上都能在同一周期上下浮動，其中出山口年徑流量與烏鞘嶺山區(qū)年降水量相關(guān)系數(shù)為0.61十八岁成年网站，說明地表徑流量主要是由山區(qū)降水補給97精品久久久中文字幕免费；年徑流量與山區(qū)年均氣溫變化呈0.28的反相關(guān)，說明該流域近50年來出山口徑流與山區(qū)氣溫呈反比欧美精品视频网站，即徑流量隨年均氣溫上升而減少男女动态视频操，相關(guān)性暫時不十分明顯国产精品第一夜不卡丝袜。

Objective: Study the influence of parameters such as attenuation coefficient, velocity of sound, and temperature of medium on focusing sound field.

目的：研究聲衰減系數(shù)、聲速欧美中文字幕观看、溫度等媒質(zhì)參數(shù)對聲聚焦的影響又粗又长的黄A片无码视频。

Introducing the wet bulb specific heat capacity and the wet bulb heat transfer coefficient, a new mathematical model for the plate wet air cooler was developed based on the wet bulb temperature transfer characteristic.

分析結(jié)果表明壁面潤濕率對冷卻性能具有顯著影響，而夾雜在空氣中的液滴對傳遞過程的影響相對較小国产午夜激无码AV毛片不卡国，工程計算可忽略夾雜液滴對傳遞模型的影響求可以在线观看的不卡的黄色av网站。

The anharmonic effect of atomic vibration taken into account and from the potential energy which reacts each other among atoms, Boltzmann statistical principle used, the relation formula of temperature and the distance change between atoms and coefficient of linear expansion is derived.

考慮原子振動的非簡諧效應(yīng)，從原子間相互作用勢能入手看片色色，運用玻爾茲曼統(tǒng)計原理曰本黄色视频免费观看，推出了原子間距的變化與溫度的關(guān)系式，并導(dǎo)出了固體的線脹系數(shù)一道本在视频线高清无码。

In order to improve thermal efficiency of gaseous suspension calciner ,after calculating and analyzing the heat balance,the result shows that:the main factors of influence of output and energy utilization of furnace are air surplus coefficient,aluminium hydroxide moisture and temperature of the main furnace.

為進一步提高氣體懸浮焙燒爐的熱效率激情图片!激情小说，對某廠氧化鋁焙燒系統(tǒng)進行了熱工測試和熱平衡計算，分析結(jié)果發(fā)現(xiàn)国产一级无码毛片，影響焙燒產(chǎn)量和能耗的主要因素為空氣過剩系數(shù)最新91视屏在线免费、氫氧化鋁水分和主爐溫度。

In order to improve thermal efficiency of gaseous suspension calciner ,after calculating and analyzing the heat balance,the result shows that:the main factors of influence of output and energy utilization of furnace are air surplus coefficient,aluminium hydroxide moisture and temperature of the main furnace.

為進一步提高氣體懸浮焙燒爐的熱效率亚洲精品自拍视频网，對某廠氧化鋁焙燒系統(tǒng)進行熱工測試和熱平衡計算全国最大的黄色网站，分析結(jié)果發(fā)現(xiàn)，影響焙燒產(chǎn)量和能耗的主要因素為空氣過剩系數(shù)一级毛片免费看高清视频在线、氫氧化鋁水分日日夜夜,黄色视频、主爐溫度。