Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: January 2014
Authors: Ji Jun Lu, H. Hamouda
Journal of materials in civil engineering. 12(4) (2000) 314-319
Materials Research. 12(1) (2009) 63-67
International Journal of Polymeric Materials. 57(8) (2008) 797-805
Journal of Applied Polymer Science. 81(13) (2001) 3178-3185
Journal of Applied Polymer Science. 104(4) (2007) 2536-2541
Materials Research. 12(1) (2009) 63-67
International Journal of Polymeric Materials. 57(8) (2008) 797-805
Journal of Applied Polymer Science. 81(13) (2001) 3178-3185
Journal of Applied Polymer Science. 104(4) (2007) 2536-2541
Online since: July 2025
Authors: Nani Rahmah, Ucu Cahyana, Ivan Hanafi
Through virtual laboratory, students can do simulations of practical work, read materials, work on questions, have discussions and get evaluations of their work.
That is why a good chemical laboratory management planning system starts from planning for laboratory use activities, purchasing systems for chemical equipment and materials, and funding systems.
Therefore, the challenges in developing a chemical laboratory information system are human resources, time and costs for procuring tools and materials and internet access.
Journal of Turkish Science Education [Internet]. 2021; 18: 108–24.
Science Education Journal. 2024;5(1):49–58
That is why a good chemical laboratory management planning system starts from planning for laboratory use activities, purchasing systems for chemical equipment and materials, and funding systems.
Therefore, the challenges in developing a chemical laboratory information system are human resources, time and costs for procuring tools and materials and internet access.
Journal of Turkish Science Education [Internet]. 2021; 18: 108–24.
Science Education Journal. 2024;5(1):49–58
Online since: September 2014
Authors: Wan Li Yang, Yu Cheng Fan, Jin Yan
The brightest trait of the degenerated virtual laminated element is virtual lamination, so the calculation of the stiffness matrix can be divided into different blocks and different materials, and the blocks with no material are virtual blocks, the stiffness of which are set to be zero.
Hence, since an element could contain multiple materials or even no material, the work is much easier when we separate the structure into elements, especially for complicated structures such as box girder, the number of elements can be remarkably reduced.
The formula to calculate the stiffness matrix of an element containing various materials is as follows: (2) In the formula, is the number of material types, is the Jocobi determinant of the coordinate transverse matrix for the very block.
Xu, New laminated block element and its application in engineering[J], China Journal of Highway and Transport, 2002(15)2, pp72-75 [4] Yasuhiro Ohtani and Wai-fah Chen, Multiple Hardening Plasticity for Concrete Materials [J], Journal of the engineering mechanics division, ASCE1988, 114(11) [5] H.C.Wu, J.W.
Xia: Three-Dimensional Non-Orthogonal Smeared Crack Model for Concrete[J], Journal of Hohai University(Natural Sciences),1999(27)5
Hence, since an element could contain multiple materials or even no material, the work is much easier when we separate the structure into elements, especially for complicated structures such as box girder, the number of elements can be remarkably reduced.
The formula to calculate the stiffness matrix of an element containing various materials is as follows: (2) In the formula, is the number of material types, is the Jocobi determinant of the coordinate transverse matrix for the very block.
Xu, New laminated block element and its application in engineering[J], China Journal of Highway and Transport, 2002(15)2, pp72-75 [4] Yasuhiro Ohtani and Wai-fah Chen, Multiple Hardening Plasticity for Concrete Materials [J], Journal of the engineering mechanics division, ASCE1988, 114(11) [5] H.C.Wu, J.W.
Xia: Three-Dimensional Non-Orthogonal Smeared Crack Model for Concrete[J], Journal of Hohai University(Natural Sciences),1999(27)5
Online since: October 2012
Authors: Jie Yu, Wen Hui Ma, Jie Xing, Rui Li, Xiu Hua Chen, Jian Jun Yang
From the viewpoint of the materials and technology, it is necessary to operate the SOFC at lower temperature (600-800℃) [3].
Zhu: Progress in Materials Science Vol. 57 (2012), p. 804-874 [2] H.Y.
Yu: Journal of Rare Earths Vol. 28 (2010), p. 917-921 [3] B.W.
Moon: Journal of Materials Science Vol. 42 (2007), p. 1866-1871 [6] F.Mauvy, P.
Lalanne: Journal of Power Sources Vol. 171 (2007), p. 783-788
Zhu: Progress in Materials Science Vol. 57 (2012), p. 804-874 [2] H.Y.
Yu: Journal of Rare Earths Vol. 28 (2010), p. 917-921 [3] B.W.
Moon: Journal of Materials Science Vol. 42 (2007), p. 1866-1871 [6] F.Mauvy, P.
Lalanne: Journal of Power Sources Vol. 171 (2007), p. 783-788
Online since: October 2013
Authors: Peng Ba, Shu Tian Zhang, Xiu Heng Zhang
For shorten the product design cycle and saved the cost, the 2.5L reciprocating compressor crankshaft is parametric designed by Pro/E. stress analysis about crankshaft during a revolution was done to check each dangerous cross-section based on dynamics, materials mechanics.
The static strength of journal can be checked by: (7) where σ-1 is symmetric bending fatigue limit (MPa) of crankshaft material; σ is normal stress (MPa) of dangerous point, [n] is the allowable safety coefficient, [n] = 3.5 ~ 5.
Journal deflection θ= 0.00021rad≤ [θ] = 0.00031 rad, rigid is enough.
Journal of Kunming University of Science and Technology, (2001)
Journal of northeastern university, in November (2009).
The static strength of journal can be checked by: (7) where σ-1 is symmetric bending fatigue limit (MPa) of crankshaft material; σ is normal stress (MPa) of dangerous point, [n] is the allowable safety coefficient, [n] = 3.5 ~ 5.
Journal deflection θ= 0.00021rad≤ [θ] = 0.00031 rad, rigid is enough.
Journal of Kunming University of Science and Technology, (2001)
Journal of northeastern university, in November (2009).
Online since: February 2016
Authors: Robert Kowalczyk, Andrzej Matras
Properties of the workpiece materials are presented in Table 1.
Heo, Environmentally conscious hard turning of cemented carbide materials on the basis of micro-cutting in SEM (2nd report): stress turning with three kinds of cutting tools, Journal of Mechanical Science and Technology 23 (2009) 1959-1966
Chen, Research and development of polycrystalline diamond woodworking tools, International Journal of Refractory Metals and Hard Materials 20 (2002) 395-400
Nabhani, Wear mechanisms of ultra-hard cutting tools materials, Journal of Materials Processing Technology 115 (2001) 402-412
Key Engineering Materials 496 (2011) 205-210
Heo, Environmentally conscious hard turning of cemented carbide materials on the basis of micro-cutting in SEM (2nd report): stress turning with three kinds of cutting tools, Journal of Mechanical Science and Technology 23 (2009) 1959-1966
Chen, Research and development of polycrystalline diamond woodworking tools, International Journal of Refractory Metals and Hard Materials 20 (2002) 395-400
Nabhani, Wear mechanisms of ultra-hard cutting tools materials, Journal of Materials Processing Technology 115 (2001) 402-412
Key Engineering Materials 496 (2011) 205-210
Online since: September 2018
Authors: Anatoliy I. Kupchishin, Nataliya A. Voronova, Buvkhan G. Taipova, Alexander A. Kupchishin, Kuanysh Shakhanov
Series: Materials Science and Engineering 110 (2016) 012003
Veprek, Recent search for new super hard materials: Go nano!
Fursa, Catastrophic models of materials destruction, IOP Conf.
Series: Material Science and Engineering 110 (2016) 012037
Lisitsyn, Uniaxial stress and electron irradiation effects on nanochains straightening in film polymer materials, Key Engineering Materials 769 (2018) 78-83, doi:10.4028/www.scientific.net/KEM.769.78.
Veprek, Recent search for new super hard materials: Go nano!
Fursa, Catastrophic models of materials destruction, IOP Conf.
Series: Material Science and Engineering 110 (2016) 012037
Lisitsyn, Uniaxial stress and electron irradiation effects on nanochains straightening in film polymer materials, Key Engineering Materials 769 (2018) 78-83, doi:10.4028/www.scientific.net/KEM.769.78.
Online since: April 2014
Authors: Zhe Zhou, Xue Yu Xing, Qiu Xu Lu, Si Meng, Ze Xu Hu, Mei Fang Zhu
Experimental Section
Materials.
PPS/SiO2 composite materials were produced at 0.5wt%, 1.0wt%, 2.0wt% for SiO2, under 290℃.
Xue, A quantum chemical calculation study on crosslinking reaction mechanism of polyphenylene sulfide, Journal of Chongqing University(Natural Science Edition). 22(1999)108-113
Tan, Calculate the reactional potential plain of pps free radical and oxygen, Journal of Southwest China Normal University(Natural Science). 28(2003)598-602
Zhang, Study of quantum chemical calculation on germasilathio-ketenes and related molecules, Journal of Gansu Lianhe University(Natural Sciences Edition). 6(2008)54-59
PPS/SiO2 composite materials were produced at 0.5wt%, 1.0wt%, 2.0wt% for SiO2, under 290℃.
Xue, A quantum chemical calculation study on crosslinking reaction mechanism of polyphenylene sulfide, Journal of Chongqing University(Natural Science Edition). 22(1999)108-113
Tan, Calculate the reactional potential plain of pps free radical and oxygen, Journal of Southwest China Normal University(Natural Science). 28(2003)598-602
Zhang, Study of quantum chemical calculation on germasilathio-ketenes and related molecules, Journal of Gansu Lianhe University(Natural Sciences Edition). 6(2008)54-59
Online since: March 2011
Authors: Joost R. Duflou, Karel Kellens, Wim Dewulf, Renaldi Renaldi
For sheet metal working, this might include energy and materials recovery, minimum lubrication, and efficient tooling systems.
Thiede, CIRP Journal of Manufacturing Science and Technology (2009), Vol. 1, pp. 221 229
Gao, Journal of Materials Processing Technology (2006), Vol. 173, pp. 213 – 222
Hein, Journal of Materials Processing Technology (2001), Vol. 115, pp. 49–54
Sekulic, Environmental Science & Technology (2009), Vol. 43 (5), pp. 1584-1590
Thiede, CIRP Journal of Manufacturing Science and Technology (2009), Vol. 1, pp. 221 229
Gao, Journal of Materials Processing Technology (2006), Vol. 173, pp. 213 – 222
Hein, Journal of Materials Processing Technology (2001), Vol. 115, pp. 49–54
Sekulic, Environmental Science & Technology (2009), Vol. 43 (5), pp. 1584-1590
Online since: February 2015
Authors: Zoltan Major, Michael Jerabek, Martin Reiter
Both thermoplastic polymers and elastomers were used as matrix materials with combination of fillers made from different materials having different aspect ratio and revealing a wide variation of alignments and arrangements.
The theoretical, material science and computational aspects of these methods are summarized in numerous publications and books [4-6].
PTFE, PA, PEEK) based compounds and composites, particle filled elastomeric materials were also modeled.
International Journal of Plasticity, Vol. 26, pp 219-238, 2010
[26] Reiter, M. and Major, Z., 2011, A combined experimental and simulation approach for modelling the mechanical behaviour of heterogeneous materials using rapid prototyped microcells, Virtual and Physical Prototyping, Volume 6, Issue, http://www.tandfonline.com/doi/abs/10.1080/17452759.2011.586949 [27] Haimin Yao, Huajian Gao, Multi-scale cohesive laws in hierarchical materials, International Journal of Solids and Structures 44 (2007) 8177–8193
The theoretical, material science and computational aspects of these methods are summarized in numerous publications and books [4-6].
PTFE, PA, PEEK) based compounds and composites, particle filled elastomeric materials were also modeled.
International Journal of Plasticity, Vol. 26, pp 219-238, 2010
[26] Reiter, M. and Major, Z., 2011, A combined experimental and simulation approach for modelling the mechanical behaviour of heterogeneous materials using rapid prototyped microcells, Virtual and Physical Prototyping, Volume 6, Issue, http://www.tandfonline.com/doi/abs/10.1080/17452759.2011.586949 [27] Haimin Yao, Huajian Gao, Multi-scale cohesive laws in hierarchical materials, International Journal of Solids and Structures 44 (2007) 8177–8193