In addition, some modifications on several computational methods are also presented. Using LMTO method the electronic structure of several systems are studied, and some results are obtained. They are: The ideal Nb (100) surface has three surface states, the multi-layer relaxed surface has two surface states. The surface energy of the ideal surface is higher than that of the relaxed surface, that means that the multi-layer relaxed surface is more stable than the former one, which supports the LEED results. The mono-layer relaxed Ag (111) surface is the most stable one among several" stable surface models"presented by several researchers. The surface energy of Ag (111) surface is higher than that of surface Ag (001), which supports some experimental results such as different reaction rate at different surface orientations for the same material. The surafce states of Si (111) surface not only locate near the Fermi level, but also in the valence band, which agrees well with Cohen's conclusion. Si (111)-H is an effective model for analysing the surface states and H adsorbed on the back surface is a good method for improving the convincingness of the results obtained on thinner slab models. The surface stability depends on three different kinds of MoSi〓(001) surfaces, the surface with mono-layer Si is the most stable one, and the surface with Mo at the first layer is the most unstable one among them. These are consistant with the Kemoda's experimental results. The valence bands of clean or K adsorbed CdTe (111) surface agrees well with the synchrotron radiation studies. The surface of CdTe (111) consists of four kinds of surface models which show different surface electronic structures and different surface structure stabilities. The conclusion agrees well with Wu's experimental work. The different absorbed alkali metals on the CdTe (111) surface give different adsorption characteristics which have relations not only with the valence electrons, but also with the core ones of the alkali metals. The electonic structures of Si-C alloys are different from that of Si-Ge alloys, and the energy band gaps of Si-C alloys do not increase linearly with Carbon concentration, our conclusion supports Alexander's results, but conflicts with Soref's one.

現(xiàn)分述如下： LMTO方法及其應用方面：1）通過對Nb（100）表面電子態(tài)分析發(fā)現(xiàn)清潔理想表面有三個表面態(tài)欧美一区2区三区3区公司，多層弛豫表面有兩個表面態(tài)鸥美性爱操逼视频；表面能大小說明多層弛豫表面更穩(wěn)定国产午夜AAAA福利片，支持了LEED結果久久免费看妇高潮A级毛片按撑。2）通過對采用不同方法獲得的幾種不同Ag（111）表面穩(wěn)定結構的表面能計算分析在线观看视频在线高清黄色网站，給出了單層弛豫表面為Ag（111）表面的最穩(wěn)定結構www.青草草在线视频；從Ag（111）單層弛豫表面和Ag（001）表面的表面能比較插插网站，發(fā)現(xiàn)了Ag（001）表面表面能要比Ag（111）小的，表明了同種物質不同表面取向將表現(xiàn)出不同物理亚洲色av噜噜狠狠爱、化學性質国产高清在线观看AV片麻豆，這是與實驗中得出的結論是吻合的，3）通過對Si（111）表面態(tài)分析久久一本AV观看片，不僅發(fā)現(xiàn)了Si（111）表面不僅具有居于費米能級附近的懸掛鍵所對應的表面態(tài)日韩欧美一级在线视频在线，而且還有很多表面態(tài)位于價帶能量范圍內，與Cohen等結果一致小草短视频，H飽和slab模型背表面相當于增加了slab層的厚度久久黄色网站视频写真，是一有效的變相增加slab層厚的方法，弛豫表面較清潔理想表面價帶譜們低能端的少許移動日韩美女福利动图视频在线观看，預示著總能降低五月天色色网站，說明弛豫表面較清潔理想表面穩(wěn)定。4）MoSi〓具有三種表面六月婷婷,激情九九，從費米能級上態(tài)密度值大小得到單層Si表面最穩(wěn)定人人妻人人艹，Mo原子為表層原子的表面最不穩(wěn)定，雙層Si原子表面居中的結論3DA片区，這與Kemoda等人實驗結果是一致的人人人摸摸人人人操。5）通過對CdTe（111）表面表面電子態(tài)、表面結構穩(wěn)定性及表面H日韩网友自拍区在线观看、堿金屬吸附的電子結構系列研究AV在线播放八区，不僅得出了CdTe（111）清潔及堿金屬K吸附價帶譜與同步輻射光電子譜相吻合的結果，而且發(fā)現(xiàn)了CdTe（111）表面具有四類不同原子近鄰特征黄色视频在线免费观看国产盗摄，表現(xiàn)出四類不同的表面結構及電子結構特征：不同表面態(tài)分布黄页网址大全在线播放免费观看、不同的表面結構穩(wěn)定性（表層原子與次層原子成三鍵有一懸掛鍵的表面要比表層原子與次層原子成一鍵有三懸掛鍵穩(wěn)定（與Wu等人實驗結果一致））、不同的H吸附特性6080毛片。

The major content of this course includes: calculation, measurement and control of solid surface composition, the structure of solid surface, electronic potential, energy band structure and surface energy state of solid, the action between gas and solid surface, chemistry behaviors of molecular on solid surface (chemisorption and catalysis of solid surface), activation and passivation of solid surface, fundamental principle and application of photo and electricity surface reaction, design of solid surface functional materials, and etc.

基本內容包括：固體表面組成計算欧美日韩·A级黄片视频1、測定與調控，固體表面結構表示方法欧美精品538在线视频、測定與控制1级黄片免费看，固體表面電子勢和表面態(tài)、固體表面能帶結構以及固體能帶的測定批女人精品国产，固體表面的功能情黄网站、氣體-固體表面間的作用以及氣體-固體表面作用的研究方法，分子在固體表面上的化學行為(化學吸附和固體表面催化作用)女同一区二区三区在线观看，固體表面的活化與鈍化欧洲亚洲成av人片天堂网网址，光電表面化學反應基本原理及應用，固體表面功能材料的設計等領域国产一区二区精品偷斗情。

Specifying Surface Goals 規(guī)定表面目標 1 In the COSMOSFloWorks design tree, right-click the Goals icon and select Insert Surface Goal.

在COSMOSFloWorks設計樹中麻豆啪啪视频，右鍵單擊"目標"圖標和選擇"插入表面目標"伦理天堂百度影音在线观看网站。

The topographical parameters have been analyzed by taking into account the thermal effect during the friction process. As the results, three kinds of typical topographical features have been observed for the worn surfaces of C G iron with various P content. Namely, C G iron with 0.05% P, 1.30% P, and 0.70% P show worn surfaces characterized by groove ridge, peak pits and their combined topography. The C G iron specimen with peak pits type worn surface topography showes the lowest wear rate and highest friction coefficient, while that with groove ridge type worn surface topography shows the highest wear rate and lowest friction coefficient. The groove ridge type worn surface has a relatively large value of surface height deviation and void volume ratio and negative large value of skewness, which is contrary to the peak pits topography.

結果表明：度銷磨損表面主要呈現(xiàn)犁溝型、孤島型及二者的混合型3種形貌特征一级毛片久久w，其中具有孤島型磨損表面形貌特征的試樣的摩擦系數(shù)較高黄页免费视频大全，磨損率較低；而具有犁溝型磨損表面形貌特征的試樣的摩擦系數(shù)最低色色色国产，磨損率最高99精品A片一级视频，分析表面形貌參數(shù)發(fā)現(xiàn)：犁溝型表面形貌具有最大的表面高度偏差和表面空隙率及高負值的表面高度分布參數(shù)；而孤島型表面形貌的表面高度偏差和表面空隙率最小又爽又黄按摩视频免费，表面高度分布參數(shù)為高正值日韩黄色网站www...。

The structural and photocatalytic properties of TiO〓 as well as surface acidity were greatly improved by sulfation. SO〓〓/TiO〓 solid superacid with Hammett constant Ho less than -12.14 was prepared by treating the TiO〓 with 1.0mol. L〓 sulfuric acid solution and then calcining at 450℃ for 3h. When compared to unmodified TiO〓, the SO〓〓/TiO〓 superacid catalyst exhibited higher anatase content, smaller crystal size, higher specific surface area, centralized pore size distribution, and the blue-shifted band edge of uv-vis adsorption spectra. Furthermore, the SO〓〓/TiO〓 superacid also showed excellent reaction activity and stability for CH〓Br photocatalytic decomposition even under the moist reaction conditions. The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究結果表明：SO〓〓與TiO〓表面的結合為螯合式雙配位結構；TiO〓光催化劑表面經H〓SO〓浸漬處理后下载黄色一级网站视频，提高了表面酸性91麻豆精品国产福利在线，改善了催化劑結構和光催化性能，當H〓SO〓浸漬濃度為1.0mol.L〓日本人成精品视频在线、燒結溫度為450℃時A片一区，可制得SO〓〓/TiO〓超強酸催化劑(H〓＜-12.14)，其結構和光催化活性得到明顯改善xxxxww，與TiO〓相比女人高潮毛片，SO〓〓/TiO〓光催化劑的銳鈦礦含量高、晶粒小欧美大片www、BET比表面積大、孔徑分布集中欧美三级在线手机版费观看、光譜吸收邊藍移日韩av免费a片网站，具有優(yōu)異的光催化氧化活性、穩(wěn)定性及抗?jié)裥阅躻ww.一级片在线观看，光催化降解溴代甲烷的表觀量子效率比TiO〓催化劑提高了一個數(shù)量級久久999wwwww，是一種有實際應用前景的高效光催化劑；由此提出了SO〓〓/TiO〓超強酸催化劑表面集團協(xié)同作用的超強酸中心模型污污污在线观看黄真人网站，認為在SO〓〓/TiO〓超強酸催化劑表面欧美黄色A精品，由SO〓〓誘導的相鄰L酸中心和B酸中心組成了集團協(xié)同作用的超強酸中心，其集團協(xié)同作用顯著地增強了催化劑表面酸性国产超碰精品热久久91、增大了表面酸量及O〓吸附量射射射网站、促進了光生電子和空穴的分離及界面電荷轉移，具有可逆吸附水的性能九九视频在观看视，是SO〓〓/TiO〓超強酸催化劑具有優(yōu)異的光催化氧化活性一级欧美片免费播放视频、很好的活性穩(wěn)定性及抗?jié)裥阅艿闹匾颉?/p>

The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究結果表明：SO〓〓與TiO〓表面的結合為螯合式雙配位結構；TiO〓光催化劑表面經H〓SO〓浸漬處理后激情在线另类小说图片，提高了表面酸性色一色最新地址，改善了催化劑結構和光催化性能亚洲黄色视频网在线观看，當H〓SO〓浸漬濃度為1.0mol.L〓、燒結溫度為450℃時久久精品国产精五月婷，可制得SO〓〓/TiO〓超強酸催化劑(H〓＜-12.14)欧美视频大片，其結構和光催化活性得到明顯改善，與TiO〓相比亚洲欧美日韩一区在线，SO〓〓/TiO〓光催化劑的銳鈦礦含量高国产高清黄色网、晶粒小95视频在线播放观看完整版、BET比表面積大欧洲日韩亚洲无线无码AV、孔徑分布集中、光譜吸收邊藍移91精品在线视频观看，具有優(yōu)異的光催化氧化活性A片视频网站免费观看、穩(wěn)定性及抗?jié)裥阅芄返辽?偷窥盗摄，光催化降解溴代甲烷的表觀量子效率比TiO〓催化劑提高了一個數(shù)量級，是一種有實際應用前景的高效光催化劑外国一级黄色网站；由此提出了SO〓〓/TiO〓超強酸催化劑表面集團協(xié)同作用的超強酸中心模型国产区无码激情，認為在SO〓〓/TiO〓超強酸催化劑表面，由SO〓〓誘導的相鄰L酸中心和B酸中心組成了集團協(xié)同作用的超強酸中心国产另类亚洲，其集團協(xié)同作用顯著地增強了催化劑表面酸性国产欧美一区二区在线播放、增大了表面酸量及O〓吸附量、促進了光生電子和空穴的分離及界面電荷轉移久久九九99精品网站成年，具有可逆吸附水的性能国产精品第13页，是SO〓〓/TiO〓超強酸催化劑具有優(yōu)異的光催化氧化活性、很好的活性穩(wěn)定性及抗?jié)裥阅艿闹匾颉?/p>

On the basis of previously research, this paper re-probe into the mechanism of electro-chemist mechanical manufacturing process, making the rational technological parameter, and developing the manufacturing equipment. Through a lot of technology tests, get a lot of labratory data, accordingly, researched the surface feature of the electro-chemist manufacturing process, and deeply discussed its influence on the work piece feature. The last result is that: the electro-chemist mechanical manufacturing process can reduce the low-frequency component significantly, but on high-frequency component, it has little influence, having obviously positive pole flat effect. After manufacture, the tip parts on the surface of the work piece is cut off, there is micro "high land" shape, the parameter for surface roughness is reduced a lot, the surface outline of the work piece is negative, the bearing length rate is cliffy. Also the surface quality of the work piece is improved. This can help to avoid changing the shape, improve the feature of rub, gear and reduce the time to suit. This would also ensure the precision and result in a longer work piece life.

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The new opinion and mechanism that the simultaneously adsorption of complex pollution of both organic and heavy metals will be achieved on soil modified with amphoteric surface modifying agent, which have both charged group and organophilic group on one ASMA molecule, were proposed at first time, and its rationality was testified at the same time; The 50% was the critical CTMAB modifying ratio of soil CEC at which the organophilic bond modifying mechanism was emerged; The thermodynamic characteristics of adsorption of OPT and HMP on OMS were discovered ; The study revealed the surface peculiarity of OMS that the modifying agent were distributed at uneven scatter mode and multi-characters surface were coexisted on surface of OMS, revealed the adsorption peculiarity of OMS that multi-mechanisms were coexisted, confirmed the unequal charge amount modifying mode of OMS in which dual-modifying mechanism of both ion exchange and OPB were processed at the same time, and confirmed that the adsorption hobby to CTMAB was higher than that to Ca2+ on Lou soil.

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The encapsulated TiO〓 particles by polymer were obtained with soapless emulsion polymerization of methyl methacrylate in water in the presence of the pretreated TiO〓 particles.

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Some important questions are discussed, such as, the common characteristics and distinctions of the surface ripples on the (001) surfaces of the carbides, the effects of the surface ripple on the surface energy and the surficial charge distribution, the change trends of the cohesive energy and surface energy of the carbides and their surfaces, an...

討論了不同碳化物表面褶皺的共同特征和相互差別超碰人妻97精品、碳化物表面褶皺的產生對表面電子分布情況和表面能的影響、碳化物的結合能和表面能的變化趨勢在线精品91青草国产在线观看、以及表面能與結合能之間的關系三A黄色网站。提出了塊體結合能和表面褶皺程度兩種因素共同影響和決定IVB和VB過渡族金屬碳化物(001)表面能的觀點。