The results showed that loading Ag^＋, Ni^2＋, Cu^2＋ or Zn^2＋ ion on the activated carbon obviously improved its adsorption of benzothiophene, while loading Fe^3＋ or Co^3＋ ion on the activated carbon caused a decrease in its adsorption of benzothiophene in comparison with the original unloaded activated carbon, which was due to the variation of the nature of soft and hard acid on the surface of the activated carbon.

采用密度泛函數(shù)理論法計算結(jié)果表明26uuu人妻无码，苯并噻吩的電負(fù)性χ為2.638国精品无码一区二区三区免费视频，屬軟堿類物質(zhì)6080午夜三级中文在线观看；由于Ag^＋為軟酸不卡一级最黄网站，活性炭負(fù)載Ag^＋離子，增加了其局部表面的軟酸131美女爱做视频在线观看，從而增強(qiáng)了對苯并噻吩硫化物的吸附欧美性爱播出曰韩性爱播出；由于Ni^2＋、Cu^2＋和Zn^2＋離子屬交界酸福利视频黄，負(fù)載Ni^2＋日韩色情精品一区-AV、Cu^2＋欧美一级在线观看欧美大片、Zn^2＋離子增加了活性炭表面的交界酸思思99思思久久最新精品，也在一定程度上提高了其表面對苯并噻吩硫化物的吸附一级A片无码性区；當(dāng)活性炭表面負(fù)載了硬酸性Fe^3＋或Co^3＋離子，其局部表面硬酸增大從而降低了其對苯并噻吩的吸附www、αV、COm。

The precision lapping technology to machine the copper substrate using semi-fixed abrasive plate was studied. The surface roughness and material removal rate as the evaluation of indicators, the influences of the different lapping parameters on the surface roughness and material removal rate were discussed and analyzed. Experimental results indicated that the copper substrate could be efficiently machined by semi-fixed abrasive plate of 800(superscript #) SiC abrasive, and the initial roughness Ra of a machined surface could be improved from 0.553μm to 0.28μm in 10min, produced an ideal rarely scratch surface. Then processed copper polished by diamonded grinding paste, it could be satisfied for the Ni-Pd-P alloy thin film growth.

主要研究半固著磨具精密研磨非晶態(tài)Ni-Pd-P合金薄膜銅片襯底人人操人人摞，以銅片襯底的表面粗糙度和材料去除率為評價指標(biāo)，探討了研磨過程中不同的工藝參數(shù)對銅片表面粗糙度和材料去除率的影響結(jié)果表明：用800 SiC半固著磨具對銅片襯底進(jìn)行研磨加工色色视频网页大全，10min后銅片表面粗糙度Ra可由0553μm減小到0.28μmiGAO激情在，同時表面無深劃痕：加工后的銅片再經(jīng)金剛石研磨膏拋光可快速獲得滿足Ni-Pd-P合金薄膜生長用的銅片襯底表面。

The method connects the exponentially attenuating dividable auto-correlation function which is often used in the study of the lubricating behaviors of rough surfaces, to the theoretical model for studying the contact behaviors of rough surfaces and it will be a foundation for studying the lubrication and failure problems of sliding frictional pairs with anisotropic surfaces.

第三章對Onions-Archard的理論接觸模型進(jìn)行擴(kuò)展欧美激情熟妇在线精品，給出了計算各向異性粗糙表面接觸性能的簡便方法成年黄页网站大全免费无码，并將粗糙表面潤滑效應(yīng)研究中常用的表征粗糙表面的指數(shù)衰減可分自相關(guān)函數(shù)和粗糙表面接觸性能研究的理論模型聯(lián)系了起來，為研究混合潤滑工況下各向異性粗糙表面摩擦副的潤滑和失效問題提供了基礎(chǔ)国产lululu精品视频。

The heat transfer experiments were conducted on dropwise condensation of steam on the surfaces with gradient surface energy.

對空氣中水滴在水平梯度表面能材料表面上的運(yùn)動現(xiàn)象和表面傾角為0°美女性爱黄黄、30°、60°和90°情況下日韩精品一区二区三区A片，梯度表面能材料表面上的水蒸氣滴狀凝結(jié)換熱進(jìn)行了可視化實驗一级二级黄片中文录相，研究了凝結(jié)液滴的長大、聚并人人操人人摸人人干、運(yùn)動和脫落現(xiàn)象95在线视频。

The batch seeded isothermal desupersaturation experiments of SPM in aqueous solution were carried out and the overall crystal growth kinetics parameters were determined by the nonlinear optimization techniques. Assuming that the volume diffusion rate at growth is equal to the mass transfer rate at dissolution under the same conditions, the two-step crystal growth rate parameters can be determined. At the fow supersaturation, the surface integration rate is proportional to relative surface supersaturation.

通過測量螺旋霉素均相成核動力學(xué)，獲得了表面能的值日本三级片久久久久久久，估算出表面熵因子的值在1.41～1.56之間免费看黄动漫，從而可以推斷出螺旋霉素晶體生長的表面反應(yīng)速率同表面相對過飽和度成線性關(guān)系，這種生長機(jī)理同第四章得到的結(jié)果是相吻合的午夜A级性交；利用估算的表面熵因子的值999国产一区二区三区，把螺旋霉素晶體看作為簡單的立方科瑟爾晶體，根據(jù)能量最低原理黄片操美女，對螺旋霉素的晶體生長進(jìn)行了模擬日韩国产欧美精品毛片。

Abstract］ Objective To Treating the nano-SiO2 particle by silicon coupling reagent, functionalize the SiO2 by making double bond on its surface. Polymerizing on the surface of nano-SiO2 surface by the method called emulsion polymerization, the nano-SiO2 is covered by polymer to get the PMMA-KH-570-nano-SiO2 complex material. Test the surface structure of the surface of nano-SiO2 by FTIR, and test sort of its mechanical performances.Comparing the treated nano-SiO2 which is directly dispended in the PMMA emulsion with the SiO2 without any treatment, we are trying to find an effective method which can not only increase the dispersion of SiO2, but also improve the mechanical performance of the artificial teeth.

目的 通過硅烷偶聯(lián)劑KH-570處理SiO2納米粒子，向其表面引入雙鍵使其功能化九九99re热久久久久久精品，采用乳液聚合的方法在SiO2納米粒子表面進(jìn)行接枝聚合久久久91精品国产一区传媒，實現(xiàn)高分子對SiO2納米粒子的表面包覆處理，制得PMMA－KH-570－SiO2納米復(fù)合材料黄色网站欧美A，采用FTIR對SiO2納米粒子表面結(jié)構(gòu)進(jìn)行了表征研究欧美日本韩国国产，并且測定了它的多種機(jī)械性能，與表面處理過的SiO2納米粒子直接分散至PMMA乳液中制得的復(fù)合材料av在线黄片免费观看、未添加任何增強(qiáng)物質(zhì)的空白組進(jìn)行比較久久久www，探索一種能夠提高SiO2在基體中的分散性，為義齒復(fù)合材料的研究和開發(fā)提供理論依據(jù)和參考。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80～100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100～300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

將Ti6Al4V合金在1000℃下進(jìn)行真空熱處理會降低其力學(xué)性能在线看的免费网站黄2019，且合金內(nèi)的V元素會向表面富集800AV最新地址，因此，鈦合金真空熱處理和表面涂層的燒結(jié)溫度不能過高天天色狼网，即應(yīng)低于其相轉(zhuǎn)變點(diǎn)日本在线亚洲国产视频看看；通過對生物活性梯度涂層的組成和結(jié)構(gòu)的設(shè)計，分析和計算了梯度涂層內(nèi)的應(yīng)力大小和分布毛片av免费观看不卡，結(jié)果表明：對于本研究国产又长又大又粗又硬视频，當(dāng)成分分布系數(shù)n=1.5時，可以獲得較合理的涂層力學(xué)性能欧美电影三级在线观看，即在沉積開始時欧美成人顶级精品视频，采用富含BG顆粒的懸浮液，以便在鈦合金側(cè)獲得同底層BG有良好過渡的富BG涂層91国内精品久久久久网站；梯度涂層界面和表面的應(yīng)力大小国产干干干日日日、性質(zhì)由材料組成本身的性質(zhì)決定，改變成分分布系數(shù)亚洲综合AⅤ一区二区三区导航，只能改變涂層內(nèi)應(yīng)力變化的趨勢综洲合亚洲视频；涂層的厚薄不影響涂層內(nèi)的應(yīng)力分布規(guī)律，但涂層越薄女生啪啪视频，涂層內(nèi)的應(yīng)力變化越快欧洲黄色在线播放视频，但這并不意味著涂層越厚越好，因為涂層越厚欧美一级鲁片一区二区三区，涂層允許的變形越小超碰97人人妻，對于應(yīng)用于彎曲受力部位的涂層而言，涂層應(yīng)薄一點(diǎn)為好(50μm)欧美亚黄色大片；而對于僅純受剪切應(yīng)力的部位亚洲人成在线中文无码毛片看，如牙根種植體，涂層可適當(dāng)加厚(80～100μm)最近更新202中文字幕视频；通過對HA和BG顆粒在水溶液體系和非水溶液體系中的帶電特性和電泳沉積的研究發(fā)現(xiàn)欧美成人h版在线观看，它們在水溶液體系中很難發(fā)生電沉積；在無水乙醇溶液中国产原创网站，HA顆粒帶正電亚洲性爱一级，可在陰極鈦合金片上發(fā)生均勻的電泳沉積，而BG顆粒則帶負(fù)電荷欧美最爽的乱婬视频婬色A片；利用復(fù)分解反應(yīng)法另类亚洲精品网站av，可以制得100～300nm的HA，通過誘導(dǎo)HA在BG顆粒表面結(jié)晶在线欧美视频网址www，可對BG顆粒進(jìn)行表面包覆欧美黄频免费a，獲得了被HA包覆的BG顆粒超碰黄色在线看，改變了BG顆粒表面的帶電特性，使BG和HA顆粒在無水乙醇中均帶上正電荷影音先锋综合网站，從而實現(xiàn)了HA和BG顆粒在陰極上的共沉積亚洲精选午夜久久无码6O80。

According to the causes,the surface defects can be divided into blister containing non-metallic inclusion,blister without non-metallic inclusion and "raindrop","gills","mountained".

根據(jù)產(chǎn)生原因可分為含有非金屬夾雜的氣囊表面缺陷；不含有非金屬夾雜的氣囊表面缺陷永久看日韩免费一级黄色视频；由氣泡產(chǎn)生的&雨點(diǎn)&狀表面缺陷国产一级黄色操逼片；&魚鱗&狀表面缺陷色视频综合一区二区二区；&山水畫&狀表面缺陷欧美一级网页。

The results show that the maximum growth quantity of Nocardia can be achieved after culturing 120 h and obvious selective adsorption of Nocardia on the surface of pyrite and sphalerite can be detected. The maximum adsorption rate on the surface of pyrite is 96.99%, whereas it is less than 20% in the case of sphalerite. Adsorption equilibrium can be attained within 20 min on the surfaces of the two minerals. pH value is the key factor influencing upon selective adsorption, and the difference of adsorption quantity on the surfaces of two minerals is apparent when pH is between 4 and 10. Slurry concentration over 6 g/L is favorable to selective adsorption. Nocardia cell concentration, stirring speed and temperature have no obviously effect on selective adsorption.

結(jié)果表明：培養(yǎng)120 h后諾卡氏菌達(dá)到最大生長量；諾卡氏菌在黃鐵礦和閃鋅礦表面發(fā)生明顯的選擇性吸附无码日韩啪啪片高潮喷水，在黃鐵礦表面的最大吸附率可達(dá)到96.99％亚洲欧美激情小说，而在閃鋅礦表面的吸附率大都在20％以下；諾卡氏菌在兩種礦物表面于20 min內(nèi)即可達(dá)到吸附平衡很鲁很鲁欧美； pH值是影響諾卡氏菌在兩種礦物表面發(fā)生選擇性吸附的關(guān)鍵因素欧洲人成视频免费， pH在4～10之間時，選擇性吸附現(xiàn)象明顯黄毛片在线观看；礦漿濃度超過6 g/L時有利于發(fā)生選擇性吸附日韩在线精品福利网页视频观看免费；細(xì)胞懸濁液濃度、攪拌速度和溫度對吸附效果影響不大久久亚洲精选，均可產(chǎn)生選擇性吸附欧美性爱人人操天天干。

Investigated the organic surface modification of anatase titanium dioxide pigment and its adsorption mode. It was founded that the surface hydroxyl groups are the active centers for olefinic acid. The adsorption of modifier fit Langmuir single molecule layer adsorption mode.

研究了銳鈦型鈦白的有機(jī)表面改性及表面吸附模型，認(rèn)為表面羥基是有機(jī)烯酸表面改性的活性中心女生叉开腿让男生桶，改性劑在鈦白表面的吸附符合Langmuir單分子層吸附模型欧美A级中文字幕乱片。