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Online since: May 2013
Authors: Shu Min Wang, Qi Hong Zhu, Xiang Gao, Bin Zhang
Concentration distribution and composition of phosphorus in street dust from small towns in Yongchuan, Chongqing Wang Shumin1, a, Zhu Qihong1,c, Zhang Bin2,b,*, Gao Xiang1,d 1 Key Laboratory of Water Environmental Restoration, Chongqing University of Arts and Sciences, Chongqing, 402160, China 2 Xihua University, Chengdu, Sichuan Province, 610039, China awangshumin5103@sina.com, bzbqdhys@163.com, czhuqh05@163.com, dgx0217@sina.com Keywords: Phosphorus, Street Dust, Distribution, Composition, Small Town.
Contamination assessment of copper, lead, zinc, manganese and nickel in street dust of Baoji, NW China, Journal of Hazardous Materials. 161(2009) 1058–1062
Orr, Pollution Buildup on Road Surfaces, Journal of Environmental Engineering. 131(2005)49-59
Development of a harmonized phosphorus extraction procedure and certification of a sediment reference material, J.
Harmonized protocol and certified reference material for the determination of extractable contents of phosphorus in freshwater sediments – A synthesis of recent works, Fresenius J Anal Chem. 370(2001) 224–228.
Online since: July 2012
Authors: Xiao Cui Lin, Yan Xiang Wu, Ting Qiu, Zhi Xian Huang
HUANG Zhixian1,a, QIU Ting1, b *, LIN Xiaocui1,c, Wu yanxiang1,d 1 College of Chemistry and Chemical Engineering, Fuzhou University, P.R.China azxhuang@fzu.edu.cn,b tingqiu@fzu.edu.cn, c linxiaocui040322@163.com, d wuyx@fzu.edu.cn To whom correspondence should be addressed.
Key words: Hsian-tsao, Polyphenolic compound, Antioxidant activity, Abstract: Extraction and purification of polyphenolic compounds from Hsian-tsao (Mesona procumbens Hemsl.) were investigated.
Different solvent systems have been used for extraction of polyphenolic compounds from plant materials[5,6], but it was still not clear which solvent systems were more effective to extract polyphenolic compounds from HT plant.
Material and Methods Material The dried HT purchased from local market in Jian ou, Fujian province, was cut into pieces and groundded into fine powder in a mill.
Online since: November 2010
Authors: Yuan Yuan Xing, Ti Feng Jiao, Jing Xin Zhou
Interfacial coordination and nanofiber fabrication of a tri-pyridine-based derivative with platinum (II) ions Tifeng Jiao1, a, Yuanyuan Xing1 and Jingxin Zhou1 1Hebei Key laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei, China aemail: tfjiao@ysu.edu.cn Keywords: interfacial coordination, nanofiber, Langmuir-Blodgett film, metal-metal-to-ligand charge transfer, tri-pyridine Abstract.
Experimental Section Materials.
The starting materials were purchased from Aldrich or Acros and used without further purification.
Online since: June 2011
Authors: Ryoji Nakamura, Shinji Kumai, Hisaki Watari, Toshio Haga
Watari3,c 1Osaka Institute of Technology, 5-16-1 Omiya Asahiku Osaka city 535-8585, Japan 2Tokyo Institute of Technology, 4259 Nagatsuda Midoriku Yokohama city 226-8502, Japan 3Gunma University, 1-5-1 tenjin cho Kiryu city 376-8515, Japan ahaga@med.oit.ac.jp Key words: twin roll caster, Al-Sn alloy, strip casting, roll casting Abstract.
They were non-use of lubricant (parting material), thin shell of casting roll and roll material with higher thermal conductivity.
Achievements in Materials and Macufacturing Engineering, Vol.14(2006),157
Online since: August 2011
Authors: Stanislav B. Lastovskii, Vladimir P. Markevich, Yurii M. Pokotilo, Alla N. Petukh, Anthony R. Peaker, Patrick R. Briddon, Valentin V. Litvinov, Bruce Hamilton, Jose Coutinho, Mark J. Rayson, Patrick R. Briddon
Briddon6,i 1Photon Science Institute, University of Manchester, Manchester M13 9PL, United Kingdom 2Belarusian State University, Minsk 220050, Belarus 3State Scientific and Production Association “Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus”, Minsk 220072, Belarus 4I3N, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal 5Department of Mathematics, Luleå University of Technology, Luleå S-97187, Sweden 6School of Electrical, Electronic and Computer Engineering, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, United Kingdom av.markevich@manchester.ac.uk, bpeaker@manchester.ac.uk, cbruce.hamilton@manchester.ac.uk, daif-minsk@ibb.by, epokotilo@bsu.by, flastov@ifttp.bas-net.by, gjose.coutinho@ua.pt, hmark.rayson@ltu.se, ipatrick.briddon@ncl.ac.uk Keywords: Ge:Sn, tin-vacancy defects, energy levels, ab-initio modeling.
Introduction A key issue in manufacturing extremely scaled Ge-based electronic devices is the problem of enhanced diffusivity of the dopants introduced by ion implantation [1].
This could facilitate the formation of ultrashallow n+-p junctions in Ge materials by implantation of phosphorus ions and subsequent activation by means of annealing treatments.
Online since: October 2011
Authors: Ting Ting Guo, Ying Li, Quan Yu Zhao
Ecological Footprint Calculation Model Parameters - for Example in Beijing Urban Ying Li1, a, Tingting Guo2,b, Quanyu Zhao 3,c Key Laboratory of Urban Stormwater System and Water Environment (Beijing University of Civil Engineering and Architecture), Ministry of Education, Beijing, 100044, China a liy@bucea.edu.cn Keywords: Ecological footprint model; parameters; Beijing urban Abstract: In this paper, the research start with two important parameters in the balance of factors and yield factors applied the ecological footprint model, select Beijing Fangshan, Pinggu and Yanqing as a research object, use the "Beijing Statistical Yearbook .2009" and the Beijing Municipal Land resources provided by the literature survey data to calculate the balance in Beijing's various land factor and Fangshan, Pinggu, Yanqing various types of land yield factor, and for the Beijing urbanization ecological carrying capacity guarantee.
All kinds of biological products and the production unit calorific value and land types such as table 1 shows: Table1 The Output of Main Biological Products of Each Land in Beijing(2008) Category Product Type Unit heat(KJ/kg) Output(t) Total calories(106KJ) Land type Crop wheat 16138.98 327392 5283772.9 Land corn 16444.12 879667 14465349.7 Land paddy 15934.16 2989 47627.2 Land potato 5709.88 16620 94898.2 Land soybean 21025.4 14923.5 313772.6 Land oil plants 26334 18781 494578.9 Land cotton 14462.8 1357 19626.0 Land vegetables 1463 3213118.7 4700792.7 Land melon 1061.72 337081 357885.6 Land medicinal materials 17263.4 2211 38169.4 Land Livestock Products pork 25038.2 223000 5583518.6 Land mutton 13731.3 15000 205969.5 Grass beef 13731.3 21000 288357.3 Grass chicken 6863.56 8820.5 60540.0 Land milk 2842.4 664000 1887353.6 Grass fresh egg 8790.54 152000 1336162.1 Land honey 20958.52 3120 65390.6 Grass Forest products nut 31253.86 12699 396892.8 Forest land Chinese chestnut 9701.78
According to “the statistics annals of Pinggu district. 2009 "data Pinggu district 2008, all kinds of biological products and the production unit calorific value and land types such as table 5 shows, area yield factor calculation results such as table 6 shows: Table 5 The Output of Main Biological Products of Each Land in Ping Gu County(2008) Category Product Type Unit heat (KJ/kg) Output (t) Total calories(106KJ) Land type Crop wheat 16138.98 6392 103160.4 Land corn 16444.12 58601 963641.9 Land sorghum 15800.40 20 316.0 Land millet 15934.16 172 2740.7 Land oil plants 26334.00 162 4266.1 Land potato 5709.88 782 4465.1 Land soybean 21025.4 1259 26471.0 Land Other vegetables 1463.00 278884 408007.3 Land medicinal materials 17263.40 117 2019.8 Land Livestock products pork 25038.20 23454 587253.1 Land mutton 13731.30 1805 24779.5 Grass beef 13731.30 2243 30806.1 Grass chicken 6863.56 5163 35436.8 Land milk 2842.40 3460 9834.7 Grass egg 8790.54 25885 227543.1 Land Forest products nuts 9701.78
Online since: October 2012
Authors: Yin Zhi Jiang, Yang Zou, Kuan Xiong, Xiao Long Gao
Moreover, some of these methods require two steps and are limited to specific benzoic acids or benzene derivatives having electron-withdrawing groups and are not applicable to a large number of starting materials.
Scheme 1 The synthesis of the title compound 1 Experimental section 1.1 Materials and Instrument All the reagents were commercially available and used without further purification.
Acknowledgments This work was financially supported by by the Science Technology Department of Zhejiang Province(14530131661136), National Natural Science Foundation of China (No. 20901067) and Zhejiang Provincial Top Key Academic Discipline of Applied Chemistry and Eco-Dyeing & Finishing Engineering (ZYG2010004).
Online since: September 2014
Authors: Qiong Liao, Jie Luo, Yang Liu
Fetal Electrocardiogram extraction based on SWT-MM method Qiong Liao1, a, Jie Luo1, b and Yang Liu1, c, * School of Engineering, Sun Yat-sen University, Guangzhou 510006, China; axiaoranpiao@163.com, bjluo_bme@foxmail.com, cfreelyle@vip.163.com Keywords: Fetal electrocardiogram, stationary wavelet transformation, time invariant, automated control.
Materials and Methods The Model for FECG Extraction.
Here the number of decomposition levels is the key factor affecting the FECG extraction.
(11) Materials.
Online since: March 2015
Authors: Qi Sheng Wu, Cui Feng Jiang, Yu Sun, Qing Hua Xu, Neng Yue Gao
Two-Photon Sensing of Dopamine by using Au Nanoparticles Cuifeng Jiang,*a, b Nengyue Gao,a Qisheng Wu,b Yu Sun,b Qing-Hua Xu* a a Department of Chemistry, National University of Singapore, 3 Science Drive 3, Republic of Singapore, 117543 b School of Materials Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, China, 224051 *E-mail: jcf@ycit.edu.cn; chmxqh@nus.edu.sg Keywords: two-photon sensing; plasmon coupling; Au nanoparticles; dopamine; Abstract.
Experiment Section Materials: Tri-sodium citrate was purchased from BDH Chemical Ltd.
Acknowledgment: This work was financially supported by Faculty of Science, National University of Singapore (Grant No.IR-143-000-403-112) and The Key Program for Basic Research of Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No.14KJA430005) References [1] A.
Online since: October 2011
Authors: Gang Lu, Yun Feng Li, Wen Chen
Introduction The complex energy issue is not only a significant economic and social issue, but also a major issue related to foreign affairs, environment and safety [1], which has shown the trends of growing globalization and politicization, covering multidisciplinary and multi-domain knowledge, such as the fields of natural science, engineering science, management science, economic science, system science, environmental science and political science [2].
Since the raw materials and market of solar industry are abroad, it was influenced by financial crisis heavily.
To realize the sustainable development of China's energy, a comprehensive system with highlighting the key points is inevitable involving energy development strategy, policy, planning and standard etc
China should accelerate the development of energy-saving and emission reduction technologies, and support key and exemplary energy saving projects, encourage the popularization and application of high efficient products.
To formulate rational energy policy and improve energy efficiency of management, China needs promotion in energy economics, energy management, energy systems engineering, energy environmentology, energy financial engineering, energy law, and the geopolitical energy, energy urbanology etc.
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