Materials Literature
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Cell sheet technology is a new skill for cell harvesting and transferring in medicine tissue engineering,which makes the cultured cells separate from the dish surface to form a layer of complete lamellar structure containing extracellular matrix. It has circumvent these limitations,such as insufficient biological acti…
Zn-Ni-Cu ferrites(ZNCF) and their poly(o-methoxyaniline) composites(ZNCF/POMA) were prepared by a chemical precipitation method and an in situ polymerization method, respectively. The structures, morphology, conductivity and magnetic properties of as-obtained samples were characterized by means of modern analyticaltec…
The O3-initiated oxidation of vinyl propionate is studied using quantum chemistry calculations. Detailed and complete reaction mechanisms are presented which involve the formation of the primary ozonide (POZ), the subsequent decomposition of POZ, the secondary reactions of CH3CH2C(O)OCHO2 (IM4) in the presence of H2 O…
Al2O3- Si- Al composite specimens with the size of25 mm × 25 mm × 125 mm were prepared using fused alumina( as aggregates and fines),ultra-fine α-Al2O3,Si and Al powders as starting materials,liquid phenol formaldehyde resin as the binder,pressing and heating at 800- 1 500 ℃ for 3 h under carbon embedded condition. Ev…
A series of novel ester-capped carbosilane dendrimers(G0-COOCH3–G2-COOCH3) were designed and successfully synthesized via a hybrid divergent–convergent method through a facile hydrosilylation reaction. The structures of these dendrimers were confirmed by FTIR,1H NMR, and HRMS analyses.
To enhance the adhesive strength between a Diamond-like Carbon(DLC)film and a SAE1060substrate and to prolong the service life of engine piston rings,the RF-DCCVD dual power chemical vapor deposition equipment with a composite anode was developed.The auxiliary anode with zigzag was used to produce cutting-edge dischar…
In the present study, biocompatibility of native, acellular, 1,4-butanediol diglycidylether and 1-ethyl-3-(3- dimethyl aminopropyl carbodiimide (EDC) cross-linked acellular aortic grafts was evaluated following subcutane- ous implantation in guinea pigs. Biocompatibility was evaluated based on macroscopic, histopathol…
2 激光，并且激光的效果在 H 上加热处理( LHT ) 2 在腐蚀工程师( NACE )答案的国家协会的 S 压力腐蚀被慢紧张率测试分析。破裂形态学和在 LHT 前后的腐蚀剂产品的化学部件被分别地，扫描电子显微镜学和精力散的光谱学分析，压力腐蚀裂开上的 LHT 的机制被讨论。结果证明为焊接关节的破裂处于它的原来的国家是易碎的，当它在 LHT 以后被转变到可锻的破裂时。导致氢的腐蚀的趋势被减少，并且压力腐蚀敏感索引从 35.2% ～ 25.3% 减少了，显示焊接的管道钢连接的 X80 的压力腐蚀抵抗被 LHT 改进了。
设计合成了具有精确分子结构的聚合物对深入了解其结构与性能之间的关系起着至关重要的作用。研究了一种合成带有三乙基硅氧侧基的环状无规共聚酯的新方法。功能性单体γ-三乙基硅氧基-e-己内酯（γ-Et3SiOeCL）和e-己内酯（e-CL）在环状引发剂2,2-二丁基-2-锡-1,3-二氧环庚烷（DSDOP）的作用下,进行活性开环聚合反应以制备活性环状无规共聚酯（LCP（eCLcoγEt3SiOeCL））前体,当单体完全转化后,以该活性环状前体作为大分子引发剂,引发反应性单体α-（1-丙烯酰氧乙基）-e-己内酯（αAEeCL）进行嵌段聚合反应,合成了在活性中心附近带有不饱和双键的功能性环状嵌段共聚酯,即活性环状聚（e-己内酯-co-γ-三乙…
新奇功能的 hyperbranched (芳基醚酉同类) poly， s (HPAEK ) 与非线性的光色基(meso-tetrakis (4-hydroxyphenyl ) 卟啉， THPP 和它的金属衍生物) 结合了被 1H-NMR 和紫外力的吸收系列综合并且描绘。进 HPAEK 的色基的加入资助了 HPAEK 新奇 NLO 和 OL 性质。确实，树枝状的建筑学允许色基的最大的分散，避免的聚集，更多的光限制性质被获得。同时，他们保留了材料的优秀性质，特别地在热稳定性。他们的光性质被非线性的光分析并且光限制评估。结果证明这些聚合物拥有了好光限制(OL ) 性质并且大非线性光(NLO ) 危险性(ca。1012 esu ) 。包含…
In this work we report the characterization of Cobalt doped ZnO (x=0.06) nanocrystals with different pH values by using microwave irradiation technique. The average crystallite sizes were calculated by using Debye-Scherrer formula and it is concluded that the crystals are in nanometer size. The Fourier Transform Infra…
The side-chain amide groups of asparagine and glutamine play important roles in stabilizing the structural fold of proteins, participating in hydrogen-bonding net- works and protein interactions. Selective 15 N-labeling of side-chain amides, however, can be a challenge due to enzyme-catalyzed exchange of amide groups…
rst principles calculations based on many-body perturbation theory. We show that the band gap in monoclinic phase is extremely sensitive to small changes in the occupation of the localized d bands of V atoms. In particular, the photo-induced hole doping in VO2 can strongly alter the dynamical screening, which then lea…
以硼化工行业固体废物--硼泥为原料，在TG-DSC热分析基础上，采用马弗炉和微波炉对其进行活化焙烧，再将焙烧产物进行碱浸和酸浸综合回收硅、镁有价组分。研究了两种焙烧方式对硼泥中SiO2和MgO浸出率的影响。采用化学分析、X射线衍射和扫描电镜对焙烧产物以及白炭黑和氧化镁制品的化学成分、物相组成和微观形貌进行表征分析。结果表明：两种焙烧方式均可提高硼泥活性，促进硼泥中硅、镁组分的浸取。其中，马弗炉最佳焙烧条件为600℃、30 min，此时硼泥中SiO2和MgO浸出率分别为97.65%和98.81%；微波炉最佳焙烧条件为500℃、10 min，此时SiO2和MgO浸出率分别为98.03%和98.83%。白炭黑制品中SiO2含量为92.2…
A type of surface plasmonic waveguide applied in the optoelectronic integrated circuit was designed.It was simulated by using three dimensional full-vectorial finite-difference time-domain method.The dependence of distributions of electromagnetic field,effective index and propagation length of the fundamental mode sup…
1437-Pos Board B167 The Influence of the Form of tRNA onComplex Formation with Porphyrins Ishkhan Vardanyan, Yeva Dalyan. Molecular Physics, Yerevan State University, Yerevan, Armenia. In the current work we have investigated the interaction of meso-tetra-(4Noxyethylpyridyl) porphyrin (TOEPyP4) and its Zn(II), Cu(II),…
(BTO ) 底层。在 BTO 底层切换的导致电压的 ferroelastic 领域产出的紧张被原子力量显微镜记录并且调制了公司电影的磁力。公司电影的磁力的操作被经由磁电机眼的克尔效果测量的磁性的磁滞现象环的电压依赖试验性地表明。
Dye-sensitized nanocrystalline TiO2 colloidal suspensions in aqueous system were applied for H2 evolution under visible light( 390 nm). In these suspension systems,the efficiency of H2 evolution is strongly influenced by the dye-sensitizers,a ruthenium complex,( n-Bu4N) 2-cis-[Ru( dcbpy)( SCN)2 ]( N719,dcbpy = 4,4'-di…
? 厘米表明最好的腐蚀电阻，腐蚀潜力增加 0.19 ? V 和与底层的相比由一个数量级减少的腐蚀水流。样品进一步增加在腐蚀电阻的改进在退火以后，并且如果与退火的铝合金的相比，吗然后，样品的腐蚀潜力在 20 点制作了?在 0.415 的厘米增加?在在 200 点退火了以后， V 和腐蚀水流由二个数量级减少?郱?? 吗？？
(3-(2-methoxyphenyl ) thiophene )(PMP-Th ) Poly， nanowires 被制作由周期的 voltammetry 通过电气化学的聚合把多孔的阳极的氧化铝(泛美航空公司) 用作模板。nanowires 的尺寸上的控制被电子显微镜学证实。结果显示在泛美航空公司 nanochannels 的 PMP-Th nanowires 的光系列是转移蓝色的，排放紧张与 PMP-Th 电影的排放相比被提高。而且， PMP-Th nanowires 的光系列是尺寸依赖者，它可以在泛美航空公司从变化导致 nanowires 的监禁的度。F ? 到 PMP-Th 分子的从泛美航空公司的 rster 精力转移被认…