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China Particuology最新文献

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Ground-based measurements of aerosol optical properties and radiative forcing in North China 中国北方气溶胶光学特性和辐射强迫的地面测量
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/J.CPART.2007.03.008
Hongbin Chen, X. Xia, Pucai C. Wang, Wenxing Zhang
{"title":"Ground-based measurements of aerosol optical properties and radiative forcing in North China","authors":"Hongbin Chen, X. Xia, Pucai C. Wang, Wenxing Zhang","doi":"10.1016/J.CPART.2007.03.008","DOIUrl":"https://doi.org/10.1016/J.CPART.2007.03.008","url":null,"abstract":"","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"30 1","pages":"202-205"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74165036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
A novel method of supporting gold nanoparticles on MWCNTs: Synchrotron X-ray reduction 在MWCNTs上负载金纳米颗粒的新方法:同步加速器x射线还原
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/J.CPART.2007.03.007
K. Lin, Tsung-Yeh Yang, Hong‐Ming Lin, Y. Hwu, She-huang Wu, C. Lin
{"title":"A novel method of supporting gold nanoparticles on MWCNTs: Synchrotron X-ray reduction","authors":"K. Lin, Tsung-Yeh Yang, Hong‐Ming Lin, Y. Hwu, She-huang Wu, C. Lin","doi":"10.1016/J.CPART.2007.03.007","DOIUrl":"https://doi.org/10.1016/J.CPART.2007.03.007","url":null,"abstract":"","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"121 1","pages":"237-241"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80222508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Comparison between oxide-reduced and water-atomized copper powders used in making sintered wicks of heat pipe 氧化还原铜粉与水雾化铜粉用于热管烧结芯的比较
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/J.CPART.2007.04.001
L. Chiu, C. Wu, Pee-Yew Lee
{"title":"Comparison between oxide-reduced and water-atomized copper powders used in making sintered wicks of heat pipe","authors":"L. Chiu, C. Wu, Pee-Yew Lee","doi":"10.1016/J.CPART.2007.04.001","DOIUrl":"https://doi.org/10.1016/J.CPART.2007.04.001","url":null,"abstract":"","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"42 2 1","pages":"220-224"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78343597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Comparison between oxide-reduced and water-atomized copper powders used in making sintered wicks of heat pipe 氧化还原铜粉与水雾化铜粉用于热管烧结芯的比较
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/j.cpart.2007.04.001
Liu-Ho Chiu , Chang-Hui Wu , Pee-Yew Lee
{"title":"Comparison between oxide-reduced and water-atomized copper powders used in making sintered wicks of heat pipe","authors":"Liu-Ho Chiu ,&nbsp;Chang-Hui Wu ,&nbsp;Pee-Yew Lee","doi":"10.1016/j.cpart.2007.04.001","DOIUrl":"https://doi.org/10.1016/j.cpart.2007.04.001","url":null,"abstract":"<div><p>Oxide-reduced copper powder can be produced efficiently at low cost. The volume shrinkage, porosity, maximum pore size, permeability and thermal conductivity of wicks sintered from two oxide-reduced (OR) powders were compared with one from water-atomized (WA) powder. The green specimens were sintered at temperatures from 800 to 1000<!--> <!-->°C in a tube furnace under a reduction stream of 10% hydrogen and 90% argon. The results show that the property variations of OR<!--> <!-->−<!--> <!-->100 and WA wicks due to porosity changes have a similar tendency and range. Nine hundred degree celsius is a recommended sintering temperature for producing ideal wicks for use in heat pipes. A smaller maximum pore size can be obtained by increasing the green density.</p></div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 3","pages":"Pages 220-224"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2007.04.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91763378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Controlled growth of silver nanoparticles in a hydrothermal process 水热过程中银纳米颗粒的受控生长
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/j.cpart.2007.03.006
Juan Zou , Yao Xu , Bo Hou , Dong Wu , Yuhan Sun
{"title":"Controlled growth of silver nanoparticles in a hydrothermal process","authors":"Juan Zou ,&nbsp;Yao Xu ,&nbsp;Bo Hou ,&nbsp;Dong Wu ,&nbsp;Yuhan Sun","doi":"10.1016/j.cpart.2007.03.006","DOIUrl":"10.1016/j.cpart.2007.03.006","url":null,"abstract":"<div><p>A two-step synthesis was used to control the shape of silver nanoparticles. First, a few spherical silver nanoparticles, ∼10<!--> <!-->nm in size, were prepared via reduction of Ag<sup>+</sup> ions in aqueous Ag(NH<sub>3</sub>)<sub>2</sub>NO<sub>3</sub> by poly(<em>N</em>-vinyl-2-pyrrolidone) (PVP). Then, in a subsequent hydrothermal treatment, the remaining Ag<sup>+</sup> ions were reduced by PVP into polyhedral nanoparticles, or larger spherical nanoparticles formed from the small spherical seed silver nanoparticles in the first step. The morphology and size of the resultant particles depend on the hydrothermal temperature, PVP/Ag molar ratio and concentration of Ag<sup>+</sup> ions. By using UV–visible spectroscopy (UV–vis), transmission electron microscopy (TEM) and powder X-ray diffraction (XRD), the possible growth mechanism of the silver nanoparticles was discussed.</p></div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 3","pages":"Pages 206-212"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2007.03.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79870008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 52
Atomic resolution in noncontact AFM by probing cantilever frequency shifts 探测悬臂频移在非接触式原子力显微镜中的原子分辨率
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/j.cpart.2006.09.001
Hong Yong Xie
{"title":"Atomic resolution in noncontact AFM by probing cantilever frequency shifts","authors":"Hong Yong Xie","doi":"10.1016/j.cpart.2006.09.001","DOIUrl":"https://doi.org/10.1016/j.cpart.2006.09.001","url":null,"abstract":"<div><p>Rutile TiO<sub>2</sub> (0<!--> <!-->0<!--> <!-->1) quantum dots (or nano-marks) in different shapes were used to imitate uncleaved material surfaces or materials with rough surfaces. By numerical integration of the equation of motion of cantilever for silicon tip scanning along the [1<!--> <!-->1<!--> <!-->0] direction over the rutile TiO<sub>2</sub> (0<!--> <!-->0<!--> <!-->1) quantum dots in ultra high vacuum (UHV), scanning routes were explored to achieve atomic resolution from frequency shift image. The tip–surface interaction forces were calculated from Lennard–Jones (12-6) potential by the Hamaker summation method. The calculated results showed that atomic resolution could be achieved by frequency shift image for TiO<sub>2</sub> (0<!--> <!-->0<!--> <!-->1) surfaces of rhombohedral quantum dot scanning in a vertical route, and spherical cap quantum dot scanning in a superposition route.</p></div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 3","pages":"Pages 242-246"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2006.09.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91763379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Enhancement of energy efficiency for mechanical production of fine and ultra-fine particles in comminution 提高机械生产细颗粒和超细颗粒粉碎的能源效率
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/j.cpart.2007.04.003
Yanmin Wang , Eric Forssberg
{"title":"Enhancement of energy efficiency for mechanical production of fine and ultra-fine particles in comminution","authors":"Yanmin Wang ,&nbsp;Eric Forssberg","doi":"10.1016/j.cpart.2007.04.003","DOIUrl":"10.1016/j.cpart.2007.04.003","url":null,"abstract":"<div><p>This paper presents the energy requirements for mechanical production of fine and ultra-fine particles in comminution. Recent approaches for effective size reduction and energy saving in comminution are described, viz., (a) development and application of new mills/classifiers, (b) adjustment of the bead characterization in stirred bead mills, (c) hybrid comminution systems with roller-press and media mill, (d) assisted methods, and (e) simulation.</p></div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 3","pages":"Pages 193-201"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2007.04.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76527650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 90
Improved algorithm of light scattering by a coated sphere 涂层球光散射的改进算法
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/j.cpart.2007.03.003
Lei Liu , Huarui Wang , Bin Yu , Yamin Xu , Jianqi Shen
{"title":"Improved algorithm of light scattering by a coated sphere","authors":"Lei Liu ,&nbsp;Huarui Wang ,&nbsp;Bin Yu ,&nbsp;Yamin Xu ,&nbsp;Jianqi Shen","doi":"10.1016/j.cpart.2007.03.003","DOIUrl":"https://doi.org/10.1016/j.cpart.2007.03.003","url":null,"abstract":"<div><p>An efficient numerical algorithm for computing the light scattering by a coated sphere is proposed. The calculation of relevant functions by different recurrence algorithms is discussed. The new algorithm avoids the numerical difficulties, which give rise to significant errors encountered in practice by prior methods. Exemplifying results such as extinction efficiency, scattering efficiency, light scattering intensity as well as calculation speed are provided. The results show that this algorithm is efficient, fast, numerically stable and accurate.</p></div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 3","pages":"Pages 230-236"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2007.03.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91763381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
Nanohybrid TiO2/carbon black sensor for NO2 gas 二氧化钛/炭黑纳米杂化传感器用于NO2气体
China Particuology Pub Date : 2007-06-01 DOI: 10.1016/j.cpart.2007.03.005
Wei-Jen Liou, Hong-Ming Lin
{"title":"Nanohybrid TiO2/carbon black sensor for NO2 gas","authors":"Wei-Jen Liou,&nbsp;Hong-Ming Lin","doi":"10.1016/j.cpart.2007.03.005","DOIUrl":"https://doi.org/10.1016/j.cpart.2007.03.005","url":null,"abstract":"<div><p>A nanohybrid sensor of nanosized TiO<sub>2</sub>-coated carbon black particles, prepared by sol–gel technology for the detection of NO<sub>2</sub> gas, has been developed. The response of the electric resistance of the hybrid sensor to NO<sub>2</sub> concentration is investigated, showing that the sensitivity of the hybrid sensor is raised as certain ratio of the TiO<sub>2</sub> content in the sensor. Easy and cheap to fabricate, the hybrid TiO<sub>2</sub>/carbon black promises to be a practical sensor for detecting NO<sub>2</sub> gas.</p></div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 3","pages":"Pages 225-229"},"PeriodicalIF":0.0,"publicationDate":"2007-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2007.03.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91772976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Magnetically stabilized bed dust filters—Analysis through variable length scale approach 磁稳定床尘过滤器——用变长度尺度法分析
China Particuology Pub Date : 2007-02-01 DOI: 10.1016/j.cpart.2007.03.001
Jordan Hristov
{"title":"Magnetically stabilized bed dust filters—Analysis through variable length scale approach","authors":"Jordan Hristov","doi":"10.1016/j.cpart.2007.03.001","DOIUrl":"10.1016/j.cpart.2007.03.001","url":null,"abstract":"<div><p>Magnetically stabilized beds are packed beds subjected to fluid-driven deformation and controlled by magnetically induced interparticle forces. This paper deals with magnetically stabilized beds as deformable porous media and describes their application in dust filtration. The Richardson–Zaki scaling law, <span><math><mrow><mi>U</mi><mo>/</mo><msub><mi>U</mi><mtext>t</mtext></msub><mo>=</mo><msup><mi>ε</mi><mi>n</mi></msup></mrow></math></span> describes the field controlled bed expansion via the exponent <em>n</em>, that yields a porosity-dependent flow length scale <span><math><mrow><msub><mi>d</mi><mtext>c</mtext></msub><mo>=</mo><msub><mi>d</mi><mtext>p</mtext></msub><msup><mi>ε</mi><mi>n</mi></msup></mrow></math></span>. The paper addresses two issues: (i) deformation characteristics by assuming homogeneous bed expansion and a definition of bed variable flow length scale; (ii) dust filtration characteristics such as filter coefficient, specific deposit and filtration efficiency expressed in terms of the variable flow length scale and illustrated by experimental data.</p></div>","PeriodicalId":100239,"journal":{"name":"China Particuology","volume":"5 1","pages":"Pages 121-129"},"PeriodicalIF":0.0,"publicationDate":"2007-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.cpart.2007.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85091281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
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