检索结果-南通市图书馆

同方期刊数据库博看期刊

Photonics Research emerges as a top choice for publication in photonics:editorial

在线全文

学校读者我要写书评

暂无评论

Photonics Research 2018年第12期6卷 I0001-I0002页

作者： zhiping(JAMES)zhou Photonics Research Peking University

Time really flies! It has been six years since I assumed the founding Editor-in-Chief position for the new journal,Photonics Research, in August 2012, then approved seven founding Associate Editors, opened its submission site in December 2012, and published its first issue in June *** Photonics Research is much more mature, so it is also time for me and the group of founding Associate Editors to pass on the editorial responsibility to a new team.

关键词： photonics published editing

On-chip light sources for silicon photonics

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2015年第1期4卷 79-91页

作者： zhiping zhou Bing Yin Jurgen Michel State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Engineering and Computer SciencePeking UniversityBeijing 100871China Department of Materials Science and Engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

Serving as the electrical to optical converter,the on-chip silicon light source is an indispensable component of silicon photonic technologies and has long been ***,we briefly review the history and recent progress of a few promising contenders for on-chip light sources in terms of operating wavelength,pump condition,power consumption,and fabrication ***,the performance of each contender is also assessed with respect to thermal stability,which is a crucial parameter to consider in complex optoelectronic integrated circuits(OEICs)and optical ***,III-V-based silicon(Si)lasers formed via bonding techniques demonstrate the best performance and display the best opportunity for commercial usage in the near ***,in the long term,direct hetero-epitaxial growth of III–V materials on Si seems more promising for low-cost,high-yield *** demonstration of high-performance quantum dot(QD)lasers monolithically grown on Si strongly forecasts its feasibility and enormous potential for on-chip *** superior temperature-insensitive characteristics of the QD laser promote this design in large-scale high-density *** Germanium(Ge)-on-Si laser is also competitive for large-scale monolithic integration in the *** with a III-V-based Si laser,the biggest potential advantage of a Ge-on-Si laser lies in its material and processing compatibility with Si ***,the versatility of Ge facilitates photon emission,modulation,and detection simultaneously with a simple process complexity and low cost.

关键词： on-chip light sources optical interconnections optoelectronic integrated circuit silicon photonics

Kinetic analysis of self-condensing vinyl polymerization with unequal reactivities

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2008年第22期53卷 3516-3521页

作者： zhou zhiping WANG GaiJuan YAN DeYue School of Materials Science and Engineering Jiangsu University Zhenjiang 212013 China State Key Laboratory of Metal Matrix Composites Shanghai Jiaotong University Shanghai 200240 China

The distribution function of the hyperbranched polymers formed from the self-condensing vinyl polymerization with unequal reactivities was derived and the differential equations for the second moments are established, based on the variable of the conversion of B* groups. The various average degrees of branching can be designed by suitable values of reactivities ratio (r) and the conversion of A group (x). In order to reach the maximum degree of branching at a specified x, r needed is dependant on the value of x. The higher the x, the less the r needed is for the maximum value of degree of branching. At the end of the reaction, the maximum degree of branching reaches 0.5 with r=2.59.

关键词：聚合物聚合作用 SCVP 分布功能

Spontaneous emission rate and optical amplification of Er3+ in double slot waveguide

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2015年第12期58卷 166-172页

作者： WANG XingJun JIANG LingJun GUO RuiMin YE Rui zhou zhiping State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Engineering and Computer SciencePeking University Division of Biological Energy and Environmental Measurement National Institute of Metrology

The spontaneous emission(SE) of Er3+ embedded in a double slot dielectric structure was studied by a quantum-electrodynamical formalism. The study shows that the slot width and the position of Er3+ in slot structure have a significant effect on the SE. The double slot waveguides were fabricated by embedding two low-index Er/Yb silicate material layers into high-index silicon. The radiative efficiency of Er3+ in the double slot waveguides is found to be higher than that of the single slot waveguide, which is consistent with the theory simulation. The 0.67 d B signal enhancement at 1.53 ?m in a 4.6-mm-long slot waveguide was observed pumped by 1476 nm laser. These results show the relevance of our model to study the SE processes in multilayer structures and are important for future realization of silicon-compatible active optical devices.

关键词： slot waveguide spontaneous emission rate quantum efficiency

Fabrication of Superhydrophobic Surface with Different Metal Films on Aluminum Alloy

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2016年第2期32卷 155-158页

作者： WANG Yang LIU Xiaowei ZHANG Haifeng zhou zhiping Department of Microelectronics Harbin Institute of Technology Harbin 150001 P. R. China

A simple technique was developed for the fabrication of a superhydrophobic surface on the aluminum alloy sheets. Different hierarchical structures（Ag, Co, Ni and Zn） were formed on the aluminum surface by the galvanic replacement reactions. After the chemical modification of them with fluorination, the wettability of the surfaces was changed from superhydrophilicity to superhydrophobicity. Scanning electron microscopy（SEM）, energy dispersive spectrometry（EDS） and water contact angle measurement were performed to characterize the morphologi- cal characteristic, chemical composition and superhydrophobicity of the surfaces. The as-prepared superhydrophobic surfaces showed a water contact angle as high as ca.160° and sliding angle as low as ca.3°. We hope the method to produce superhydrophobic surface can be used in many fields.

关键词： Superhydrophobicity Water contact angle Aluminum alloy Micro-nano structure

Optimization of phenol degradation by Candida tropicalis Z-04 using Plackett-Burman design and response surface methodology

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2011年第1期23卷 22-30页

作者： Jiangya zhou Xiaojuan Yu Cong Ding zhiping Wang Qianqian zhou Hao Pao Weimin Ca School of Environmental Science and Engineering Shanghai Jiaotong University Dongchuan Road 800 Shanghai 200240 China.

Statistical experimental designs were used to optimize the process of phenol degradation by Candida tropicalis Z-04, isolated from phenol-degrading aerobic granules. The most important factors influencing phenol degradation （p 〈 0.05）, as identified by a two-level Plackett-Burman design with 11 variables, were yeast extract, phenol, inoculum size, and temperature. Steepest ascent method was undertaken to determine the optimal regions of these four significant factors. Central composite design （CCD） and response surface analysis were adopted to further investigate the mutual interactions between these variables and to identify their optimal values that would generate maximum phenol degradation. The analysis results indicated that interactions between yeast extract and temperature, phenol and temperature, inocuhim size and temperature affected the response variable （phenol degradation） significantly. The predicted results showed that the maximum removal efficiency of phenol （99.10%） could be obtained under the optimum conditions of yeast extract 0.41 g/L, phenol 1.03 g/L, inoculum size 1.43% （V/V） and temperature 30.04℃. These predicted values were further verified by validation experiments. The excellent correlation between predicted and experimental values confirmed the validity and practicability of this statistical optimum strategy. This study indicated the excellent ability of C. tropicalis Z-04 in degrading high-strength phenol. Optimal conditions obtained in this experiment laid a solid foundation for further use of this microorganism in the treatment of highstrength phenol effluents.

关键词： phenol degradation Candida tropicalis Z-04 optimization Plackett-Burman design response surface methodology

One-step Condensation/copolymerization of VTES and DVB for Self-assembly Bionic Superhydrophobic Surface Coating and Study on Oil-water Separation

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2021年第3期18卷 559-573页

作者： Ruilong Zhang zhiping zhou Yi Wang Xiaohui Dai Li Chen Jiangdong Dai Research School of Polymeric Materials School of Materials Science and EngineeringJiangsu UniversityZhenjiang 2120133China State Key Laboratory of NBC Protection for Civilian Beijing 102205China Institute of Green Chemistry and Chemical Technology Advanced Chemical Engineering Laboratory of Green Materials and Energy of Jiangsu ProvinceSchool of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China

Mimicry of nature drives the development of bionic *** superhydrophobic materials are a kind of high-efficiency materials to handle oil spills and water ***,the stability of surface coatings of the superhydrophobic materials remains a ***,a new category of self-assembly bionic superhydrophobic surface coating was prepared via one-step condensation/copolymerization of vinyltriethoxysilane(VTES)and divinylbenzene(DVB),which realized the close combination of covalent bonds between organic(***)and inorganic matter(***),and avoided the swelling of polydivinylbenzene(PDVB)in the process of collection of oil from *** organic-inorganic hybrid polymer could self-assembly deposit on the surface of sponge even other *** example,P(VTES-DVB)-Si0_(2)/MS obtained by assembling P(VTES-DVB)-Si0_(2)on the surface of Melamine Sponge(MS)exhibited superhydrophobicity with a Water Contact Angle(WCA)of 157.3,the optimal adsorption capacity of 77 g g 136 g g-1 for diverse oils,and an excellent separation efficiency of 99.3%.Besides,the excellent acid and alkali resistance of P(VTES-DVB)-Si0_(2)/MS suggested the potential value in practical oil-water separation.P(VTES-DVB)-Si0_(2)showed the outstanding hydrophobic performance by using as coating on different *** work provided a new idea about the stable combination of organic and inorganic matter in the surface modification.

关键词： superhydrophobic surface coating oil-water separation condensation copolymerization self-assembly organic-inorganic hybridism

A real-time tunable arbitrary power ratios graphene based power divider

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2018年第8期61卷 104-106页

作者： Haowen SHU Yuansheng TAO Ming JIN Xingjun WANG zhiping zhou State Key Laboratory of Advanced Optical Communications System and Networks School of Electronics Engineering and Computer Science Peking University

Dear editor,Recently,photonics integrated circuits have attracted extensive consideration for its realization of large-scale integration of various devices and functionalities on a single chip[1].As a fundamental buil... 详细信息

关键词： Figure A real-time tunable arbitrary power ratios graphene based power divider length GOS

Robust,fluorine-free and superhydrophobic composite melamine sponge modified with dual silanized SiO_(2) microspheres for oil-water separation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2021年第5期34卷 50-60页

作者： Ruilong Zhang zhiping zhou Wenna Ge Yi Lu Tianshu Liu Wenming Yang Jiangdong Dai School of Material Science and Engineering Jiangsu UniversityZhenjiang 212013China Institute of Green Chemistry and Chemical Technology School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212013China School of Mechanical Engineering Dalian University of TechnologyDalian 116023China Entry-Exit Inspection Quarantine Bureau Zhenjiang 212008China

Massive oily wastewater discharged from industrial production and human daily life have been an urgent environmental and ecological *** materials have attracted tremendous attention due to their unique properties and potential applications in the treatment of *** this study,a novel superhydrophobic/superoleophilic composite melamine sponge modified with dual silanized SiO_(2) microspheres was fabricated simply by a two-step sol-gel method using vinyltriethoxysilane and hexadecyltrimethoxysilane as functional agent,which exhibited a water contact angle of 153.2°and a water sliding contact angle of 4.8°.Furthermore,the composite sponge showed the excellent oil adsorption performance and the compressive elasticity reaching up to 130 g·g^(-1) of dichloromethane and 33.1 kPa of compressive *** was worth noting that the composite sponge presented the excellent separation efficiency(up to 99.5%)in the processes of continuous oil/water *** robust superhydrophobic composite melamine sponge provided the possibility with the practical application for oil-water separation.

关键词： Superhydrophobic sponge Two-step sol-gel method Oil-water separation Dual silanized SiO_(2) microspheres