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Online since: June 2014
Authors: Yan Zhang, Tao Peng, Bai Bing Yang
Introduction: Garden plants are the basis of city gardens construction material, is an important part to improve the urban ecological system.
In practice, combining with the plant growth type of classification rule, application principle, the garden plant as the landscape material, according to their external forms, is divided into six types, and there are trees, shrubs, rattan, bamboo, flowers, grass and cover.
The role of landscape plants in urban landscape Increase urban landscape and enhance the aesthetic function Garden trees are widely used in urban and rural greening, sites, monuments, and temples, scenic area of all kinds of green space, including all kinds of park, botanical garden, street green space, roads, houses and other places, is the main body of urban greening materials.
The green science and technology [J], 2011:15-16
Journal of northwest institute of architectural engineering college [J], 1988 (1): 36-40.
Online since: December 2013
Authors: Jia Liang Guan, Li Li Zhu, Sheng Gen Zhu, Xin Qiang Ma
Fig. 3 The relation curve between KDP crystal surface roughness and tool rake angle 0.3 The effect of tool rake angle on the surface roughness of KDP crystal As a kind of anisotropic fragile material, KDP crystal will be brought about some damage of crystal lattice to varying degrees by the same cutting angle and form abnormal cutting effect so that results in scratch damage to the crystal surface[8].
The author think, the deviation of the law is mainly caused by cutter material which is not as sharp as single crystal diamond and the machine tool is not high-precision enough.
Progress in the research of KDP (KH 2 PO4) crystal [J].Hebei Journal of Industrial and Technology, 2006, 23(6): 377-380.
Diamond cutting of optical brittle materials [J].Opt.
Beijing: Science Press 2001, 235-286.
Online since: May 2013
Authors: T. Saravana Kannan, A.S. Ahmed, Ani Farid Nasir
Ani3, c 1Faculty of Engineering, Computing and Science, Swinburne University of Technology, Kuching, Sarawak, Malaysia 2Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Sarawak, Malaysia 3Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Skudai, Johor D.T., Malaysia asthangavelu@swinburne.edu.my, baasaleh@feng.unimas.my, cfarid@fkm.utm.my Keywords: Sago bark waste (SBW), bioethanol, microwave irradiation, energy efficiency Abstract.
Materials and Methods Raw materials and Chemicals: The SBW was collected from local sago starch processing factories and it was dried by natural drying for 3 days.
These results again propose that water content is an important parameter for the efficiency of microwave pretreatment for bioethanol production from starchy lignocellulosic material.
Wen: Biochemical Engineering Journal Vol 38 (2008), p.369 [9] L.
Online since: January 2005
Authors: Soo Young Park, Jin Seog Kim
Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Carbon Isotope Ratio Measurement on Foxtail Seed as an Environmental Index Soo Young Park and Jin Seog Kim Division of Chemical Metrology and Materials Evaluation, Korea Research Institute of Standards and Science, P.O.
According to a recent report [6], the concentration of the carbon dioxide in the air was approximately 375 μmol/mol and its carbon isotope 13C was depleted by about 0.8 % relative to the reference material, Pee Dee Belemnite, δ13C = 0.
(1) To measure the carbon isotope ratio of the foxtail seeds, we used three reference materials, NBS 19 limestone (+1.95 ‰), NBS 22 Crude oil (-29.73 ± 0.09 ‰), and KRISS RM 100C (-28.17 ‰).
Online since: January 2012
Authors: Li Mei Bai, Bo Liu, Xiao Liang Zhang, Yu Xin Ma, Yu Hao
Introduction Steel is the important strategic resources of our national economy development, and iron ore is the main raw material of the steel industry development.
Table 1 The analysis results of composition of run-of-mine ore Chemical Composition Fe2O3 CaO MgO SiO2 Al2O3 MnO Others Content[%] 59.68 30.64 3.94 3.35 1.30 0.7 0.39 Table 2 The analysis results of phase of iron Iron phase Mmagnetic iron Haematite and limonite Pyrites Silicate iron Total The iron content [%] 0.00 32.48 0.20 2.52 35.20 Distribution rate[%] 0.00 92.27 0.57 7.16 100.00 Table 3 The analysis results of mineral composition of run-of-mine ore (mass%) Mineral name Specularite Hematite Calcspar Quartz Shale material percentage composition[%] 34 12 48 3 3 It is shown in the Table 1, Table 2 and Table 3 that excepts the main iron minerals, the others are mainly gangue mineral rocky mineral of Calcareous class and the content of quartz is low.
The ore is mainly composed of specularite, hematite and calcite, and it has a low quantity of Shale material and quartz, specularite and hematite are the main ore minerals in the ore, the total content is more than 46%; and the main gangue mineral rocky mineral are calcite and a small quantity of shale material and quartz.
The fine particle of specularite is nearly 0.003mm, mainly inlay shale fossil by fine particle, the particle of hematite is minuteness, it’s between 0.001mm to 0.003mm, it presents as smalls cryptocrystalline, mixed with hidden mass muddy limestone crystal and Shale material, constitute a massive tectonic.
Testing Investigation on the Reduction/Magnetic Separation of Oxide Ore from Bayan Obo[J], Journal Of Northeastern University(Natural Science) , Vol.31(2010),P.886-889
Online since: November 2012
Authors: Yong Hai Wu, Cong Bing Ma
Recent years, with the advancement of computing science, finite element technology and optimized design technology, the finite element technique has been adopted by many researchers to conduct design calculation and optimization of the design on axle housing.
Simulation Results and Analysis In this paper material of the drive axle housing is 16Mn steel and the thickness is 12mm.
According to the Material manual, its elastic modulus E = 2.01×105MPa, Poisson's ratio v = 0.3, material density is 7850kg / m and the yield limit 780Mpa.
Under the full load conditions, the drive axle housing stress is in the range that material allowed and it can meet the strength and stiffness requirements.
International Journal of Plant Engineering and Management, 2010,(03)
Online since: August 2015
Authors: Elumalai Natarajan, N. Puja Priyadharshini, R. Senthil Kumar
The different material properties used in CFD analysis is shown in table 3.
Table 3 Material properties used in CFD analysis Material Layer Thermal Conductivity (W/m.K) Specific Heat Capacity (J/ kg.K) Density (kg/m3) Tempered Glass Top Cover 2 500 2450 EVA Encapsulent 0.311 2090 950 Silicon PV Cell 130 677 2330 Tedlar Bottom Cover 0.15 1250 1200 4.
Joshi, Performance evaluation of photovoltaic thermal solar air collector for composite climate of India, Solar Energy Materials & Solar Cells. 90 (2006) 175-189
Reddy, Performance evaluation of a hybrid photovoltaic thermal (PV/T) (glass-to-glass) system, International Journal of Thermal Sciences. 48 (2009) 154–164
Online since: January 2006
Authors: Yeong Maw Hwang, Ging Ian Shin, Chi Yu Wu
The difference of critical value between the case of load acting at the Fig.3 Dimension of extruded product (mm) Element type Tetrahedral Temperature (�) 480 Ram speed (mm/sec) 2 Friction factor 0.9 Billet diameter (mm) 63.5 Materials Al 6061 Velocity error limit 0.005 Convergence error Force error limit 0.05 Table 1 Major parameters setting of FE-simulation centroid of cross section and the case of load acting at the top surface of beam decreases with increasing length of fin.
If the dimension and material property of die fins are given, it is easy for the die designer to decide whether the dimension of die fins will buckle or not during extrusion process.
Acknowledgments The authors would like to extend their thanks to the National Science Council of the Republic of China under grant No.NSC 93-2212-E-110-008.
S., Stability of Monosymmetric Beams and Cantilevers, Journal of the Structural Division, ASCE, No ST1, Proc.
[8] Hwang Y.M., Chen H.C., Hwang P.T. and Wu C.Y., Finite Element Analysis and Die Design for Extrusion of Complex-Shaped Parts, Key Engineering Materials Vols274-276, pp655-660, 2004
Online since: June 2012
Authors: Jian Wang, Pei Hua Huang
A New Design of Underwater Robot Fish System Using Shape Memory Alloy Peihua HUANG1,a, Jian WANG2,b 1Binzhou University department of Computer and Science Shandong, China 2The Sencond Artillery Petty Officer School Shandong, China ahuangqrnu@126.com, bustc009@hotmail.com Keywords: Shape Memory Alloyt; Underwater; Robot Fish Abstract.
The best way to solve these problems is to use intelligent materials such as Piezoelectric (PZT), Shape Memory Alloy(SMA), Ionic Polymeric Metal Composites(IPMC).
There are many reasons why the SMA is the most attractive material.
The surface is covered with elastic film instead of hermetic materials due to the fact that the SMA springs need water to cool them in order to fasten working frequency.
DRUCKER1,LAUDER2“A HYDRODYNAMIC ANALYSIS SPEED: WAKE STRUCTURE AND LOCOMOTOR FORCE IN SLOW ” The Journal of Experimental Biology 203, 2379–2393 (2000) [3] K.lkuta, “Micro/Miniature Shape Memory Alloy Actuator” in Proceedings of IEEE International Conference on Robotics and Automation, Vol.3.pp. 2156-2161, Los Alamitos, CA, May. 1990 [4] KojiIkuta.
Online since: November 2012
Authors: Sheng Dong Gao, Cheng Jian Zheng, Ying Xue Yao
Introduction Micro metal droplet printing technologies have been put under the spot light these years because of its application in manufacturing and material processing.
Using DOD method, droplet can be generated only when it is needed so that materials can be utilized with a high efficiency.
Acknowledgments: Project Supported by the National Natural Science Foundation of China under grant No. 51075090.
Li: Modeling and characterization of metal droplets generation by using a pneumatic drop-on-demand generator, in: Journal of Materials Processing Technology(2010) [2] C.
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