Journal of Residuals Science & Technology最新文献_第3页

Quantitative Investigation on Pyrolytic Behaviors of Agricultural Residues from Rice Husk and Various Performances of Their Relevant Ash Residues 稻壳农用秸秆的热解行为及其相关灰渣各种性能的定量研究

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/issn.1544-8053/14/1/5

Xiwen Yao, Kaili Xu, Yu Liang

{"title":"Quantitative Investigation on Pyrolytic Behaviors of Agricultural Residues from Rice Husk and Various Performances of Their Relevant Ash Residues","authors":"Xiwen Yao, Kaili Xu, Yu Liang","doi":"10.12783/issn.1544-8053/14/1/5","DOIUrl":"https://doi.org/10.12783/issn.1544-8053/14/1/5","url":null,"abstract":"In this study, the thermal process behavior of rice husk as a sustainable feedstock for bio-syngas production and the physicochemical properties of rice husk ash generated from thermal process as possible precursors for utilizations were intensively investigated. A preliminary analysis of the influences of heating rate on kinetics and on the formation of bio-syngas was also performed. The thermogravimetric results of rice husk indicate that its decomposition occurs in four stages, and the main weight loss occurs within 210–400°C. The emission intensities of CO, CO2, CH4, and H2 at 20°C/min are much higher than those of 5°C/min, indicating that pyrolysis at higher heating rates is more suitable for bio-syngas production. Chemical and phase analysis exhibits the presence of cristobalite, quartz, and tridymite as the major crystal phases of SiO2, which reveals the potential of rice husk ash as an alternative for silicon compounds. The porous structure analysis indicates that carbon residues developed from rice husk ash are good candidates for activated carbon production. Through analyzing its thermal properties, the internal reactions occurring within ash particles are predicted accurately, which is helpful to better understand the transformation and fusion mechanism of inorganic components in the complex-composition ash.","PeriodicalId":17101,"journal":{"name":"Journal of Residuals Science & Technology","volume":"51 1","pages":"35-46"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78910763","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: 0

Study on the Effect of Crop Production on the Air Quality in Wuhan 武汉市农作物生产对空气质量的影响研究

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/14/S1/5

Song Tao

引用次数: 0

Analysis of Land Use Structure in Liaoning Province Based on Lorenz Curves and Gini Coefficient 基于Lorenz曲线和基尼系数的辽宁省土地利用结构分析

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/14/S1/7

Xiaofan Zhao, Y. Xu

{"title":"Analysis of Land Use Structure in Liaoning Province Based on Lorenz Curves and Gini Coefficient","authors":"Xiaofan Zhao, Y. Xu","doi":"10.12783/ISSN.1544-8053/14/S1/7","DOIUrl":"https://doi.org/10.12783/ISSN.1544-8053/14/S1/7","url":null,"abstract":"Land resources and land use activities support the social and economic development in any region. In order to explore the distribution of land use structure, we can apply the Lorenz curves and Gini coefficient to accomplish. In this study, we selected the land use data in 14 prefecture cities in Liaoning Province of China from 2010 to 2015. Based on the Lorenz curve and the Gini coefficient, we analyzed quantitatively the land use structure in 14 prefecture cities of Liaoning province. Results indicated that cultivated land, forest land and construction land were evenly distributed, while garden land, grass land and unused land were distributed in a more concentrated state in space scale. On time scale, the Gini coefficient of forest land, garden land and grass land were increasing, and the degree of distribution dispersion has increased, while the Gini coefficient of cultivated land, construction land and unused land has reduced, whose distribution tended to equilibrium. Some suggestion for rational land use and structural adjustment has been provided by analyzing the spatial and temporal distribution of land use in Liaoning Province.","PeriodicalId":17101,"journal":{"name":"Journal of Residuals Science & Technology","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75806756","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: 0

Measurement of China’s Carbon Emissions Efficiency and the Study of Its Influencing Factors 中国碳排放效率测度及其影响因素研究

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/14/1/26

Hua Wang, Z. Wang, Xin He

引用次数: 0

Investigation of the Leaching Characteristics of Heavy Metals from Waste Printed Circuit Boards through Column Testing with Simulated Acid Rain 模拟酸雨柱试验研究废弃印刷电路板中重金属的浸出特性

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/11/1/17

Guo-hua Zhao, Jie Luo, Gui Chen

引用次数: 3

Performance Prediction Model for Designing a Multiple Electro-cyclone System 多电旋流器系统设计的性能预测模型

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/14/1/38

Seungkyung Park

{"title":"Performance Prediction Model for Designing a Multiple Electro-cyclone System","authors":"Seungkyung Park","doi":"10.12783/ISSN.1544-8053/14/1/38","DOIUrl":"https://doi.org/10.12783/ISSN.1544-8053/14/1/38","url":null,"abstract":"Electro-cyclones allow simple and cost effective removal of fine particles by improving the collection efficiency of conventional cyclones with the application of external electric fields. However, understanding of design and operational parameters for optimizing the performance of electro-cyclones are still limited due to the complexity of the removal mechanism and the lack of prediction models. In this study, the particle collection efficiency of electro-cyclones has been analyzed using simple theoretical models, and the system configuration of multiple electro-cyclones has been evaluated especially for the removal of fine particles less than 5 µm which are limited in conventional cyclones. Based on the Stairmand high efficiency cyclone design, the effects of external electric field on a single and multiple units were investigated. Parallel operations of multiple electro-cyclones, consisting of 10 units, potentially provided the cut off diameter less than 0.3 µm by lowering flow rate and operation load for each unit. For a multiple configuration, the collection efficiency was improved as the number of units increased, while the flow speed variation due to the parallel operation was insignificant.","PeriodicalId":17101,"journal":{"name":"Journal of Residuals Science & Technology","volume":"12 1","pages":"325-331"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79712606","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: 0

Characterization of CuInS2 Films Prepared by Electroplating and Sulfurization 电镀和硫化制备CuInS2薄膜的表征

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/14/S1/12

Kegao Liu, Hui Liu Jing Li Chao Xu, Yong Xu

{"title":"Characterization of CuInS2 Films Prepared by Electroplating and Sulfurization","authors":"Kegao Liu, Hui Liu Jing Li Chao Xu, Yong Xu","doi":"10.12783/ISSN.1544-8053/14/S1/12","DOIUrl":"https://doi.org/10.12783/ISSN.1544-8053/14/S1/12","url":null,"abstract":"As a ternary compound, CuInS2 with band gap about 1.5 eV, has chalcopyrite crystal structure, high absorption coefficient and low toxicity of sulfur, therefore, CuInS2 is a promising absorbing layer used in solar cells with thin films. Electroplating method has many advantages of low cost and easy operation etc. CuInS2 precursor samples were prepared by electroplating with raw materials of CuCl2·2H2O, InCl3 and Na2S2O3·5H2O etc., and the precursor films were heat treated in sulfur atmosphere. The phases of product samples were determined by X-ray diffraction (XRD) and the surface morphology was observed by scanning electron microscopy (SEM), and the elemental content of the film was analyzed by energy dispersive spectroscopy (EDS). Results show that uniform and dense CuInS2 precursor films can be obtained under conditions of CuCl2·2H2O, InCl3, Na2S2O3·5H2O and C6H5Na3O7·2H2O with contents of 10 mmol/L, 10 mmol/L, 100 mmol/L and 1.25 mmol/L respectively, pH 3.5 and deposition potential –1.0 V. CuInS2 film with good crystallinity was obtained by sulfurizing precursor film at 350 oC for 6h, has different XRD peaks for (112), (024/220) and (116/132) crystal planes respectively. Many lumps with uniform size are found, and there are little holes distributing on the surface after heat treatment. The precursor and sulfurized films were all found containing copper, indium and sulfur elements. It is found that the sulfur content in the films was obviously increased after sulfurizing.","PeriodicalId":17101,"journal":{"name":"Journal of Residuals Science & Technology","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75165173","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: 0

Synthesis, Structure and Biological Activity of a Ca(II) Coordination Polymer with Pyrazole-3,5-dicarboxylate as Ligand 以吡唑-3,5-二羧酸酯为配体的Ca(II)配位聚合物的合成、结构和生物活性

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/14/1/6

Tai Xi-Shi, Jia Zong-Qing, W. Xin

引用次数: 1

Design of Asphalt Light Component Pre-filled Filler Based on Oil Shale Waste Residue 基于油页岩废渣的沥青轻组分预充填料设计

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/issn.1544-8053/14/1/8

Yazhi Xu, Zhuang Zheng, Xuedong Guo

引用次数: 0

Study on Expressway Crack Segmentation Algorithm Combined with Pulse-Coupled Neural Network and Cross-Entropy Algorithm 脉冲耦合神经网络与交叉熵算法相结合的高速公路裂缝分割算法研究

Journal of Residuals Science & Technology Pub Date : 2017-01-01 DOI: 10.12783/ISSN.1544-8053/14/S1/6

Baocheng Wang, Jiawei Sun

引用次数: 0