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Search Results: 1 - 10 of 94216 matches for " WEN Yu-hao "
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2-Bromo-5-iodo-1,3-dimethylbenzene
Rui Liu,Wen-Yuan Wu,Yu-Hao Li,Shui-Ping Deng
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536807065415
Abstract: In the molecule of the title compound, C8H6BrI, the H atoms of methyl groups are disordered; site-occupation factors were fixed at 0.50. The non-H atoms all lie on a crystallographic mirror plane. Weak intramolecular C—H...Br hydrogen bonds result in the formation of two non-planar five-membered rings.
The Effects of Dilute Sulfuric Acid on Sheet Resistance and Transmittance in Poly(3,4-thylenedioxythiophene): Poly(styrenesulfonate) Films
Teen-Hang Meen,Kan-Lin Chen,Yu-Hao Chen,Wen-Ray Chen,Dei-Wei Chou,Wen-How Lan,Chien-Jung Huang
International Journal of Photoenergy , 2013, DOI: 10.1155/2013/843410
Abstract: The conductivity of poly(3,4-thylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) films by adding various molar concentrations of sulfuric acid (H2SO4) was improved and studied in this paper. The sheet resistance of the doped PEDOT: PSS film was enhanced with increasing the ratio of H2SO4, but it drops after the maximum sheet resistance. The reason for this phenomenon is resulting from the fact that the H2SO4 preferentially react with the sorbitol which is so-called the pinacol rearrangement. The nonconductive anions of some PSS? were substituted by the conductive anions of hydrogen sulfate (HS ) when the residual H2SO4 reacted with PSS. In addition to the substitution reaction, PEDOT chains were increasingly aggregated with increasing the ratio of H2SO4. After doped H2SO4, the sheet resistance of H2SO4-doped PEDOT: PSS film is improved nearly 36%; the surface roughness is reduced from 1.268?nm to 0.822?nm and the transmittance is up to 91.9% in the visible wavelength range from 400 to 700?nm. 1. Introduction The poly(3,4-thylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) is a conductive polymer blend, which mainly consisted of two substances, PEDOT and PSS. The PEDOT is a polymer of the 3,4-thylenedioxythiophene (EDOT), which is insoluble in water. The solubility of the PEDOT increased through being combined with the PSS. Therefore, the PEDOT: PSS becomes easier to use. The PEDOT: PSS was widely applicated to electronic devices such as organic solar cells, actuators, capacitors, organic light-emitting devices, and sensors [1–3]. One of the fundamental requirements for operation of all organic optoelectronic devices is a stable anode interface. Indium tin oxide (ITO) has been widely used for organic optoelectronic devices due to its high optical transparency and high conductivity. However, the work function of ITO is low. The most common way is to be coated with a buffer layer on the top of ITO surface. The buffer layer can export the carriers more efficiently. Among these buffer layers, the PEDOT: PSS is superior to other materials due to its structural stability, optical transparency, and process ability. The PEDOT: PSS as the buffer layer not only increases the work function of the ITO but also planarizes the surface of ITO substrate. The insufficient conductivity of the PEDOT: PSS is a restriction for application in optoelectronic devices, although the PEDOT: PSS has the above advantages. Therefore, the topic of enhancement on conductivity of the PEDOT: PSS was studied by many researchers. The research of the PEDOT: PSS indicates
金属线电极分形生长的模拟
Simulation of Fractal Growth?on Metal Wire Electrode

丁莉峰,毛沛元,程军,牛宇岚,文宇浩,程玮
DING Li-feng
, MAO Pei-yuan, CHENG Jun, NIU Yu-lan, WEN Yu-hao, CHEN Wei

- , 2018, DOI: 10.13208/j.electrochem.170711
Abstract: 摘要 电沉积金属过程中,阴极沉积的金属边缘会出现包括枝晶生长在内的许多复杂形态,这会严重影响电沉积产品的质量和加工过程中的电流效率. 对枝晶分形生长的过程以及形貌进行研究,可以实现对沉淀物的可控生长. 本研究使用Python和Matlab软件相互结合,基于扩散限制凝聚(DLA)模型,建立平行线电极电沉积的模型. 通过分析不同粒子数、沉积概率、电极间距、运动步长、定向漂移条件下的分形生长的变化规律,以及模拟参数与实际电沉积因素对分形生长影响的内在联系,发现只要合理控制模拟的粒子数、沉积概率、线电极间距、运动步长、定向漂移概率参数即可与实际电化学体系的浓度和沉积时间、还原概率、两极间距、温度和电压、电极的相对位置和形状一一对应,从而模拟得到跟实际电沉积接近的分形图,最终可实现对分形生长的可控操作,对分形生长在工业电沉积等方面应用有很大的意义.
During processes of metal electrodepostion, there exist many complex morphological forms such as dendritic growing in the cathode deposited metal edge, which will seriously affect the quality of the electrodeposited product and current efficiency during machining. Investigations on dendritic crystal growing process and morphology could help controlling growth of electrolysis precipitate. In this work, Python and Matlab softwares were used, and the model of parallel electrode electrodeposition was established based on the diffusion-limited aggregation (DLA) model. By analyzing the law of fractal growth at different conditions of the particles number, probability, electrode spacing, the movement step length and orientation drift, and the inner link between simulation parameters and practical factors that affect fractal growth of electrodeposition, it was found that the simulation results can match the actual parameters by controlling the simulation parameters such as particles number, wire electrode spacing, movement step length and orientation drift probability. The inner connection between simulated parameters and actual electrodeposition factors is discussed. Finally, the specific electrodeposition experiments can be simulated by changing the computer variables, which is controllable and crucial to applying the fractal growth to industry electrolysis
The eigenvalues of quantized spin waves and theeffect of the uniaxial anisotropy
量子自旋波本征值及易轴型各向异性对其的影响

Hou Xiao-Juan,Yun Guo-Hong,Bai Yu-Hao,Bai Narsu,Zhou Wen-Ping,
侯小娟
,云国宏,白宇浩,白那日苏,周文平

物理学报 , 2011,
Abstract: The eigenproblems of quantized spin waves in a (100) ferromagnetic bilayer system have been investigated theoretically by using the interface rescaling approach. The energy-band structure of the system has been obtained and the effect of the uniaxial bulk anisotropy field of easy-axis type on the energy bands were explored thoroughly. It is found that there are bulk modes, perfect confined modes and interface modes in the biferromagnetic system, the existing condition of which is determined not only by the bulk exchange coupling constant, the interface exchange coupling constant, the spin of lattice, the number of atomic layers, but also by the uniaxial bulk anisotropy.
BEHAVIORS OF POND SMELT (HYPOMESUS OLIDUS) AND THE CHANGES IN ITS POPULATION STRUCTURE IN TWO RESERVOIRS
池沼公鱼在水库中的栖息活动规律及种群结构变化特性

Xie Yu-Hao,
解玉浩

生态学报 , 1991,
Abstract:
4-Iodo-2-methylaniline
Wei Luo,Rui Liu,Yu-Hao Li,Wei Chen
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808004145
Abstract: In the molecule of the title compound, C7H8IN, the methyl C, I and N atoms lie in the benzene ring plane. In the crystal structure, intermolecular N—H...N hydrogen bonds link the molecules in a stacked arrangement along the a axis.
5-Bromo-2-iodo-1,3-dimethylbenzene
Rui Liu,Yu-Hao Li,Wei Luo,Shan Liu
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536807064537
Abstract: The asymmetric unit of the title compound, C8H8BrI, contains three independent molecules. In each molecule, the Br, I and C atoms of the methyl groups lie in the benzene ring plane. Intramolecular C—H...I hydrogen bonds result in the formation of three planar five-membered rings, which are nearly coplanar with the adjacent rings.
4-Bromo-2,6-dimethylaniline
Rui Liu,Yu-Hao Li,Wei Luo,Shan Liu
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536807064641
Abstract: The asymmetric unit of the title compound, C8H10BrN, contains two independent molecules. The Br, N and methyl group C atoms lie in the benzene ring planes. In the crystal structure, N—H...N hydrogen bonds link the molecules.
Smoking, Green Tea Consumption, Genetic Polymorphisms in the Insulin-Like Growth Factors and Lung Cancer Risk
I-Hsin Lin, Ming-Lin Ho, Hsuan-Yu Chen, Hong-Shen Lee, Chia-Chen Huang, Yin-Hung Chu, Shiau-Yun Lin, Ya-Ru Deng, Yu-Hao He, Yu-Hui Lien, Chi-Wen Hsu, Ruey-Hong Wong
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0030951
Abstract: Insulin-like growth factors (IGFs) are mediators of growth hormones; they have an influence on cell proliferation and differentiation. In addition, IGF-binding protein (IGFBP)-3 could suppress the mitogenic action of IGFs. Interestingly, tea polyphenols could substantially reduce IGF1 and increase IGFBP3. In this study, we evaluated the effects of smoking, green tea consumption, as well as IGF1, IGF2, and IGFBP3 polymorphisms, on lung cancer risk. Questionnaires were administered to obtain the subjects' characteristics, including smoking habits and green tea consumption from 170 primary lung cancer cases and 340 healthy controls. Genotypes for IGF1, IGF2, and IGFBP3 were identified by polymerase chain reaction. Lung cancer cases had a higher proportion of smoking, green tea consumption of less than one cup per day, exposure to cooking fumes, and family history of lung cancer than controls. After adjusting the confounding effect, an elevated risk was observed in smokers who never drank green tea, as compared to smokers who drank green tea more than one cup per day (odds ratio (OR) = 13.16, 95% confidence interval (CI) = 2.96–58.51). Interaction between smoking and green tea consumption on lung cancer risk was also observed. Among green tea drinkers who drank more than one cup per day, IGF1 (CA)19/(CA)19 and (CA)19/X genotypes carriers had a significantly reduced risk of lung cancer (OR = 0.06, 95% CI = 0.01–0.44) compared with IGF1 X/X carriers. Smoking-induced pulmonary carcinogenesis could be modulated by green tea consumption and their growth factor environment.
牙龈卟啉单胞菌对血管平滑肌细胞钙化作用的研究
Calcification of Vascular Smooth Muscle CellInduced by Porphyromonasgingivalis.

唐路, 薛栋, 白雨豪, 王鹏程, 周维, 李文婷, 董岩, 曾红燕, 赵颖
TANG Lu
, XUE Dong, BAI Yu-hao, WANG Peng-cheng, LI Wen-ting, DONG Yan, ZHOU Wei, ZENG Hong-yan, ZHAO Ying

- , 2018, DOI: 10.13701/j.cnki.kqyxyj.2018.02.006
Abstract: 摘要 目的:探讨牙龈卟啉单胞菌(Porphyromonasgingivalis, P. gingivalis)对小鼠血管平滑肌细胞(vascular smooth muscle cell, VSMC)钙化的影响。方法:选取C57BL/6小鼠,取主动脉体外培养VSMC,通过细胞免疫荧光染色,用α-smooth muscle actin(α-SMA)特异性抗体对VSMC鉴定。热灭活P. gingivalis以不同的感染倍数(multiplicity of infection,MOI)干预VSMC,分别在12、24、48、72 h检查VSMC的细胞活性,在21 天时检测VSMC钙化表现及钙含量。并且将P. gingivalis与小鼠主动脉共培养,观察P. gingivalis对小鼠主动脉的钙化作用。结果:特异性抗体α-SMA在细胞中荧光染色阳性,证明体外培养为VSMC。P. gingivalis(MOI:10,100)刺激VSMC在24和48 h,细胞活性明显增强,在72 h,所有感染倍数下(MOI:1,10,100 )细胞活性较对照组均明显增强(P<0.05)。培养至21 d时,P. gingivalis诱导VSMC出现明显钙化,钙含量与MOI成正相关(P<0.05)。P. gingivalis与小鼠主动脉培养14 d,见主动脉壁出现明显钙化沉积。结论:P. gingivalis可诱导VSMC细胞活性增强及钙化,并且可直接引起主动脉壁钙化沉积
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