XRD,X-ray EDS analysis,AFM and Fourier transform infrared spectroscopy were employed to characterize PbSe thin films. The results show that all of the films were heteromorphy and the growth temperature has effect to the diffract peaks of the films. The contents of PbSe thin films by PLD consisted with the targets,and realizing thin films deposited with same constitutes; the films had rather flatness surface and compact structure; the peak-to-tail roughness of PbSe thin films surfaces was less than 200nm;they had sensitivity to light of a specified wavelength and obvious absorption edge at 5μm corresponding to band-gap width of PbSe thin films;light of wavelength less than 5μm was strongly absorbed.

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Because the monolith also dominates the flow resistance properties of system, a more homogeneous temperature distribution is reached, which generally leads to lower peak temperatures at the front part of the absorber material.

因?yàn)辇嬋淮笪镅侵抟磺谙卟豢ǎ仓髟琢肆鲃?dòng)阻力特性的系統(tǒng)，更均勻的溫度分布是達(dá)到了男女插插视频，這通常會(huì)導(dǎo)致低峰值溫度在前面部分的吸收材料欧美一级A片免费观看网站。

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下幾個(gè)方面開(kāi)展工作并獲得了一些認(rèn)知和結(jié)論：(1)通過(guò)分析樣帶區(qū)域內(nèi)高寒草甸、高寒灌叢免费无码日韩A级毛片、沼澤化濕地和草原化高寒草甸四個(gè)通量觀測(cè)站點(diǎn)草地生態(tài)系統(tǒng)總初級(jí)生產(chǎn)力變化特征思思热思思干精品，研究結(jié)果表明HBBT矮嵩草草甸生態(tài)系統(tǒng)植被光合作用能力較強(qiáng)，年GPP總量為652.2 gC/m~2级婬片A片888AAA毛片，明顯高于其他三種生態(tài)系統(tǒng)操一操插；通過(guò)利用"單塔日變化法"獲得四站點(diǎn)通量觀測(cè)數(shù)據(jù)隨機(jī)誤差，結(jié)果表明通量觀測(cè)隨機(jī)誤差概率分布呈現(xiàn)尖峰厚尾的特征92亚洲国产午夜看片，與正態(tài)分布相比国产黑人视频精品区，更服從雙邊指數(shù)分布，進(jìn)一步分析表明通量觀測(cè)隨機(jī)誤差隨環(huán)境變量(風(fēng)速亚洲一级精品无码AV、溫度和光合有效輻射)的變化而變化人人爽,人人操人人，這違背了普通最小二乘法進(jìn)行生態(tài)過(guò)程模型參數(shù)優(yōu)化正態(tài)分布且誤差同質(zhì)的假設(shè)，因此本研究中引入最大似然法進(jìn)行生態(tài)過(guò)程模型參數(shù)優(yōu)化www.99riav29.com。

At the same time, we also find out an explanation for this phenomenon in the domain of the quantum mechanics, and erect a mathematic model to show the relation between the locations of absorption peak and the concentration of hydrogen nitrate ion in solution.

同時(shí)性欧美激情视频免费观看，論文在量子領(lǐng)域中運(yùn)用量子力學(xué)的理論，給出了這一漂移現(xiàn)象的解釋?zhuān)⒔⒘宋辗宓牟ㄩL(zhǎng)位置和溶液中硝酸根離子濃度的關(guān)系的數(shù)學(xué)模型性爱a视频。

The results indicate that the flow stress of the alloy increases with increasing strain rate and decreasing deformation temperature. The flow stress increases with increasing strain until the stress reaches the peak value, then the flow stress remains constant, which indicates that dynamic recrystallization happens during deformation. The flow behaviors are described by the hyperbolic sine constitutive equation, and the activation energy calculated is 337.75 kJ/mol. The as-forged microstructure consists of refined α2/γ and γ grains, and the grains are much homogeneous than before. The B2 phase distributes uniformly at the grain boundary of α2/γ and γ grains. The B2 phase decreases with increasing deformation temperature.

結(jié)果表明：流變應(yīng)力隨著應(yīng)變速率提高和變形溫度降低而增大国产在一区二区线免费视频；在變形過(guò)程中，流變應(yīng)力隨著變形量增大而增大人人操人人模人人看人人舔人人插，當(dāng)流變應(yīng)力達(dá)到峰值后趨于平穩(wěn)国产又黄又粗又长网站，表明合金在變形過(guò)程中發(fā)生了動(dòng)態(tài)再結(jié)晶；熱變形過(guò)程的流變應(yīng)力可采用雙曲正弦本構(gòu)關(guān)系來(lái)描述人妻免费一区二区三区最新，平均激活能為337.75 kJ/mol人禽性直播；從合金的組織演化過(guò)程中可以看出，合金中不均勻的原始組織得到明顯均勻化中国一级无码黄片，變形后的組織是由α2/γ層片晶團(tuán)和γ晶粒組成的雙態(tài)組織自拍偷拍欧美性爱视频，在α2/γ層片晶團(tuán)和γ晶粒的晶界交界處發(fā)現(xiàn)分布均勻的B2相，并且隨著變形溫度升高B2相數(shù)量逐漸減少。

Numerical simulation by Matlab for the new hypocycloid energy transformation mechanisms was done by means of the four-order Runge-kutta's method. The result shows that the simple harmonic and rectilinear motion of piston in the new mechanism make the engine working more stable. The peak acceleration is around 25% lower in the new mechanism than that in the conventional slider-crank mechanism. And the output speed is much higher at the same identical mean effective pressure and same load torque. And then the output power of the engine is improved.

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Flow cytometry assay showed that after the treatment of Eca109 cells with resveratrol (50 mg/L) for 72 hours, the apoptotic rate reached at 19.52% and hypoploid apoptotic peak presented to the DNA picture.

流式細(xì)胞術(shù)檢測(cè)結(jié)果顯示365电影18禁天天影院，40 mg/L白藜蘆醇培養(yǎng)Eca109細(xì)胞72 h后細(xì)胞凋亡率達(dá)19.52%国产剧情亚洲一区二区日韩，在DNA直方圖上有明顯的亞二倍體凋亡峰。

Results:Whith the time and doses of ART incubation extended, ART significantly inhibited the proliferation of SGC-7901 cells and the inhibited effect shows dose-and -time-dependent. Obvious changes of apoptotic morphology were observed by invert microscope, fluorescence microscope, scanning electron microscope and transmission electron microscope, they showed that cells had marked nuclear condensation or the fragmentation of chromation as well as apoptotic , mitochondrial edema and vesicle , with the time of incubation extended , the proliferation rate become slow and the volume became small and transformed. FCM assay indicated that most of the cells were arrested in Go/Gi and the apoptotic peak appeared. During the prolong of incubation time, the apoptosis rate was increased. At the same time, the number of S and G2/M phase cells were decreased. The result of TUNEL indicant that there are apoptosis and necrosis.

結(jié)果：隨著藥物濃度的增加和作用時(shí)間的延長(zhǎng)18免网站免费，蒿甲醚對(duì)胃癌SGC-7901細(xì)胞的抑制作用呈時(shí)間和濃度依賴(lài)關(guān)系：在倒置顯微鏡无码在线观看CAO、熒光顯微鏡、掃描電鏡和透射電鏡下可觀察到典型的凋亡細(xì)胞的形態(tài)改變色婷婷九月综合桃花网，表現(xiàn)為：核固縮或染色質(zhì)邊聚或凝聚成大塊狀亚洲全黄一级网站，可見(jiàn)凋亡小體，線(xiàn)粒體腫脹增殖中文字幕精品一区，嚴(yán)重的空泡化亚洲你懂的在线视频，隨作用時(shí)間的延長(zhǎng)，細(xì)胞增殖速度減慢狠狠色天天综合网，細(xì)胞體積縮小變形特级特黄色视频；流式細(xì)胞術(shù)顯示胃癌SGC-7901細(xì)胞出現(xiàn)明顯的凋亡峰，隨著作用時(shí)間的延長(zhǎng)激情偷乱人伦小说动漫，其凋亡率逐漸升高丁香五月婷，細(xì)胞周期阻滯在G_0/G_1期，S及G_2/M期細(xì)胞數(shù)大量減少国产freeXXXX性播放乳；流式細(xì)胞術(shù)TUNEL檢測(cè)結(jié)果顯示細(xì)胞凋亡和壞死同時(shí)存在二区视频在线。

The results showed as follows: The diurnal variations of Pn were "twin peaked" curve, and the peak value occurred at 10:00 and 16:00 or so. There was an obvious "midday depression" phenomenon under full light and middle shading (60%), while it didn't occur obviously under strong shading (80%).

結(jié)果表明：毛紅椿凈光合速率日進(jìn)程曲線(xiàn)呈"雙峰"型，高峰值出現(xiàn)在10：00和16：00黄色视频欧美，全光照和中度遮蔭(60%)情況下有較明顯的光合"午休"現(xiàn)象一级片黄色强奸，而強(qiáng)度遮蔭(80%)光合"午休"現(xiàn)象不明顯久久久久久精品免费免费直。

The peak current at about -0.90V showed a linear dependence with the concentration of isoniazid over the range 1.2×10^(-10) and 1.3×10^(-3)mol/L.

發(fā)現(xiàn)在-0.90V出現(xiàn)的還原峰的峰電流與異煙肼的濃度在1.2×10^(-10)~1.3×10^(-3)mol/L的范圍內(nèi)成線(xiàn)性關(guān)系全黄毛片。