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Online since: April 2014
Authors: Jing Zhu
Determination of the Crystallographic and Electronic Structure of Cesium Holmium Polyphosphate CsHo(PO3)4 with One-dimensional Tunnel Jing Zhu Department of Materials Science and Engineering, Yunnan University, Kunming 650091, China email: jzhu@ynu.edu.cn Keywords: polyphosphate, CsHo(PO3)4, crystal structure, electronic structure Abstract.
Acknowledgements This work was supported by the National Natural Science Foundation of Yunnan Province (No. 2012FB122), the Education Science Foundation of Yunnan Province (No. 2013Z050), the Science Foundation of State Key Laboratory of Structural Chemistry (No. 20140012), Training program for young academic and technical leader in Yunnan Province and Training program for young teacher in Yunnan University.
Payne, Materials Studio CASTEP version 2. 2, 2002
Online since: October 2008
Authors: Jian Guo Cai, Jian Feng, Hong Jin Zhu, Ya Fei Liu, Li Feng Huang
Experimental Study and FEM Analysis of Seismic Behavior of Joints for Frame Structures Comprised of Precast Prestressed Concrete Components Jianguo Cai1, a , Jian Feng1, b , Hongjin Zhu2, c, Yafei Liu3, d and Lifeng Huang1, e 1 Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China 2 Guangdong Southern Planning and Designing Institute of Telecom Consultation Co., Ltd., Shenzhen 518038, China 3 Nanjing Dadi Construction (Group) Co., Ltd., Nanjing 210013, China a caijg_ren@126.com, b fengjian@seu.edu.cn, c05098418@163.com, d caijg_ren@126.com, e 415huang@163.com Keywords: precast concrete structure; seismic performance; joint; service hole; cyclic loading; finite element method.
The material properties of concrete and reinforcing bar are listed in Table 1 and Table 2.
Table 1 Material propertoes of concrete Concrete C40(First batch) C40(Second batch) C40(Third batch) C50 Axial compressive strength fc [Mpa] 29.1 27.2 29.3 34.0 Elastic modulus [×104 Mpa] 3.35 3.32 3.38 3.45 Table 2 Material propertoes of reinforcing bar Reinforcing bar Specification HPB235 HPB235 HRB335 HRB335 Diameter [mm] 8 10 18 22 Yield strength fc [Mpa] 251.3 242.5 412.8 410.5 Elastic modulus [×105 Mpa] 2.16 2.11 2.08 2.11 Test specimens construction The beams and the column below the joint were precast from the same batch of concrete.
The material models of concrete and reinforcing bar are all based on the experiment data.
Construction, PCI Journal, Vol14 (2001), pp.46-52 [2] Alfred.A.Yee: Social and Environmental Benefits of Precast Concrete Technology, PCI Journal, Vol14 (2001), pp.24-30 [3] Robert Park: Seismic design and construction of precast concrete building in New Zealand, PCI Journal, September-October (2002), pp.60-75 [4] Jubum Kim: Behavior of hybrid frame under seismic loading, Ph.D. dissertation, University of Washington, (2003) [5] Zhu Hongjin: Seismic research by experiment for the joint of framed structures comprised of precast prestressed concrete components, Master dissertation, Southeast University, (2006) [6] Ministry of Construction of China: Specification of testing methods for earthquake resistant building, JGJ101-96 (China Architecture and Building Press, Beijing, 1996) [7] Jubum Kim, John Stanton, Gregory MacRae, Stephen Day and Masahiro Sugata: Cyclic loading testing of precast hybrid frame connection, In: Proceeding of 13th World Conference on Earthquake Engineering
Online since: May 2011
Authors: Li Ya Fan, Yan Li, Xue Qiang Wang
Urban Structure Design Strategy of Energy Conservation Liya Fana, Yan Lib and Xueqiang Wangc Institute of Civil Engineering and Architecture, Nanchang University,Nanchang,Jiangxi,330031,China amjfnn@126.com, bliyan@126.com, c21858383@qq.com Key words: Urban Structure; Energy Conservation; Sectorization; Traffic Organization; Human Behavior; Strategy Abstract.
As a result, mankind must turn our attention to new energy structure, explore and research to develop renewable energy vigorously, replace all biochemical resources as renewable energy resources and raw materials.
Similarly, replacing the old building structure also consume energy, such as demolition, piling, recycling, manufacturing new building materials.
Online since: February 2017
Authors: Osvaldo Freitas Neto, Olavo Santos Jr., Laddyla T.V. Bezerra
Introduction The mass movements, considered to be the most important geomorphological process to shape the terrain, are the downslope movement observed by varied materials under the influence of gravity.
According to [2], these materials are characterized by their highly unstable heterogeneous character and geotechnical behavior, which acts on the weight increase over the slope, thus, helping to spark movement occurrence.
In accordance with [5], the key for risk classification is the presence of instability features that indicate occurrence or imminence of mass movements in slope.
Proc. 18 Brazilian Congress of Soil Mechanics and Geotechnical Engineering, Belo Horizonte, (2016), (in portuguese)
Online since: June 2010
Authors: Yong Tian Wang, Yi Jun Cao, Xia Hui Gui, Jiong Tian Liu, Xiu Xiang Tao
Studies on Regulator Experiment of a High-to-float High-ash Fine Coal Xiahui Gui1,a , Jiongtian Liu1,b , Xiuxiang Tao1,c , Yijun Cao1,d , Yongtian Wang1,e 1 School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221008, China a guixiahui1985@163.com,b scetljt@126.com,ctaoxx163@163.com,d yijuncao@126.com, e wyt9495@263.net Keywords: high-to-float high-ash fine coal; regulator; flotation; coal slime.
Introduction Medicaments applied in coal preparation technology are mainly collecting agent and foam beater, and regulators is seldom used, but during the process of high-ash-difficult-to-separate coal slime flotation, carried fine slime is key factor affecting concentrate coal quality.
Fine coal slime materials are not easily covered on coal particle surfaces.
Soluble glass itself has viscosity, having some foaming function mixed with materials, increasing the difficulty to furtherly reduce fine coal ash content.
Online since: June 2014
Authors: Rustam Kaibyshev, Marat Gazizov, Ivan Zuiko
Effect of cold plastic deformation prior to ageing on creep resistance of an Al-Cu-Mg-Ag alloy Marat Gazizova *, Ivan Zuikob and Rustam Kaibyshevc Laboratory of Mechanical Properties of Nanostructured Materials and Superalloys, Belgorod State University, Pobeda 85, Belgorod, 308015, Russia agazizov@bsu.edu.ru, bzuiko_ivan@bsu.edu.ru, crustam_kaibyshev@bsu.edu.ru * corresponding author Keywords: Aluminum alloys; Cold working; Precipitation; Microstructure; Mechanical properties.
Introduction The aluminum alloys belonging to Al-Cu-Mg-Ag system exhibit excellent mechanical properties at room and elevated temperatures that make it possible to consider them as a material for use in aerospace engineering for structures operating at elevated temperatures [1-3].
It seems that the YS and UTS at room temperature and rupture time or minimal creep rate at 150°C are the key mechanical properties of this material but these properties are typically opposite to each other.
Online since: March 2015
Authors: Meng Lin Qin, Huan Mei Yao, Jing Yang
Influencing Factors Decomposition of the Carbon Emission of Industrial Energy Consumption in Nanning Downtown Based on LMDI Jing Yang1, a *, Huanmei Yao2,b and Menglin Qin3,c 1 Room 324,College of Environment of Guangxi University, Nanning, Guangxi, China 2 Room 324,College of Environment of Guangxi University, Nanning, Guangxi, China 3 College of Civil Engineering and Architecture of Guangxi University, Nanning, Guangxi, China ayangjing010151088@126.com, b191723450@qq.com, c857040058@qq.com Keywords: LMDI, the carbon emission, Nanning downtown, Industry Abstract.
Thereinto, GDP contribution rates of agricultural and sideline food processing, chemical raw materials and chemical products manufacturing, non-metallic mineral products and nonferrous metal smelting and rolling processing industry and other industries whose[Carbon Emission Contribution Rate]is among the highest are unceasingly declining, from 25.60%, 7.39%, 5.48%, 2.95% in 2003 to 14.28%, 7.06%, 4.57% and 2.49% in 2012 respectively.
Therefore, it is necessary to use energy efficiently, improve energy output, actively promote the research and development of zero-carbon and low-carbon technology, strengthen energy-saving and emission reduction, further improve the mechanism of eliminating backward production capacity, and accelerate the boiler transformation and the use of afterheat and overbottom pressure in the key energy consuming enterprises.
Transform food, chemicals, building materials and other traditional advantageous industries, and complete the transition from extensive divergent development to intensive cluster development, from primary processing to intensive processing development.
Online since: July 2015
Authors: Shinya Tsukamoto, Kazuhito Ohashi, Yuya Takata
Tsukamoto, The Possibility of Dressless Restoration of Grindactivity in Dry Grinding of Carbon, Key Engineering Materials, 389-390 (2009) 356-361
Tsukamoto, Improvement of Grindactivity by Dressless Wheel Treatment in Dry Grinding of Carbon, Advanced Materials Research, 76-78 (2009) 94-100
Online since: July 2015
Authors: Cheng Kuo Lee, Rong Hwei Yeh, T.M. Chao, A.H. Tan
Introduction Hard glass substrates utilized in hard disk media is a key technology for achieving a high areal density of recorded data in a hard disk drive (HDD) [1,2].
Experimental Procedures In this study, three polishing processes were developed using two types of a standard tape and a novel tape made from Nylon-based material along with two types of a standard slurry and a novel NCD abrasive particles slurry (mean size of 15nm), along with a suitable coolant solution which can completely dissolve the NCD abrasive particles.
This data indicates that disk D has the lowest defect level because the polishing process removes enough surface material to eliminate its substrate surface defects while generating very few polished induced surface scratch defects.
Litvinov, Barium hexaferrite nanoparticles: Synthesis and magnetic properties, Materials Science and Engineering: B 176 (2011) 8-13.
Online since: August 2013
Authors: Ya Ji Huang, Bao Sheng Jin, Wu Zuo, Ji Qiang Jia, Yan Yan Wang, Yu Sun
Distribution and characteristics of products from pyrolysis of sewage sludge Yu Sun, Baosheng Jin *, Yaji Huang, Wu Zuo, Jiqiang Jia, Yanyan Wang Ministry of Education of Key Laboratory of Energy Thermal Conversion and Control, School of Energy and Environment, Southeast University, Nanjing 210096, China E-mail: sunyu233@163.com (Y.
Experimental Materials.
A lot of researches on fixed bed pyrolysis have been reported for different materials.
Chemical Engineering Journal, 2009, 145(3): 412-419
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