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Online since: June 2015
Authors: Vladimír Sana
Damping can be divided into internal – the internal structure of material (kinetic energy is transformed to the thermal energy), contact – at the interface of two different environments, structural – participation of supports of the structure.
Kok, Dynamic Modeling of Damping Effects in Highly Damped Compliant Fingers for Applications Involving Contacts, Journal of Dynamic Systems, Measurement and Control, 2012, pp. 1-9, ISSN 0022-0434 [4] G.M.L.
Ammann et. al., Vibration problems in structures: Practical guidelines, Springer Science & Business Media, 1995. 234 p.
Kok, Dynamic Modeling of Damping Effects in Highly Damped Compliant Fingers for Applications Involving Contacts, Journal of Dynamic Systems, Measurement and Control, 2012, pp. 1-9, ISSN 0022-0434 [4] G.M.L.
Ammann et. al., Vibration problems in structures: Practical guidelines, Springer Science & Business Media, 1995. 234 p.
Online since: December 2010
Authors: Zheng Hao Ge, Wei Hua Liu, Wei Huang, Zhi Heng Zhai
CAD/CAM/CAE for the Parallel Indexing Cam Mechanisms
Zhenghao Ge a, Wei Huang b, Weihua Liu c, Zhiheng Zhai d
College of Mechanical and Electrical engineering, Shaanxi University of Science and Technology, Xi’an,Shaanxi, 710021, China
a gezh@sust.edu.cn, b huangwei19880925@126.com, c qiedoudou@163.com,
d zhaizhiheng999@sina.com
Keywords: parallel indexing cam mechanisms, CAD/CAM/CAE, contact and collision, kinematic simulation.
Subsequently,use special interface MECHANISM / Pro to switch three-dimensional model that created in Pro / E to ADAMS, define material properties and the contact between the roller and cam, add drive and create a virtual prototype.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY , 2006 28(z2) [3] Xichao Zhang.
Subsequently,use special interface MECHANISM / Pro to switch three-dimensional model that created in Pro / E to ADAMS, define material properties and the contact between the roller and cam, add drive and create a virtual prototype.
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY , 2006 28(z2) [3] Xichao Zhang.
Online since: December 2013
Authors: Bing Xu, Zhen De Li
We selected the two scene TM image data of the conservation area which were recorded in 2004 and 2009, as our source material.
Journal of Geodesy and Geodynamics, Vol.27(2007),p.31-34 (In Chinese) [2] Xinsheng Fan , Longgen Ying.
Advance in Earth Science, Vol. 20(2005),p.282-291 (In Chinese) [3] Getis, A.
Journal of Geodesy and Geodynamics, Vol.27(2007),p.31-34 (In Chinese) [2] Xinsheng Fan , Longgen Ying.
Advance in Earth Science, Vol. 20(2005),p.282-291 (In Chinese) [3] Getis, A.
Online since: October 2025
Authors: Hyatma Adikara Ajrin, Leni Sophia Heliani
Material and Methods
Satellite Images.
This area has high values of Coloured Dissolved Matter (CDOM) and suspended material due to the estuary around the beach [18], [19].
Kurniawan, “Distribution pattern of potential fishing zones in the Bangka Strait waters: An application of the remote sensing technique,” Egyptian Journal of Remote Sensing and Space Science, vol. 25, no. 1, pp. 257–265, Feb. 2022, doi: 10.1016/J.EJRS.2021.12.003
Rahman, “Sebaran spasio temporal kelimpahan fitoplankton dan klorofil-a di perairan ujung kartini jepara (Spatial and Temporal Distribution Abundance of Phytoplankton and Chlorophyll-a in Ujung Kartini Waters Jepara),” Saintek Perikanan: Indonesian Journal of Fisheries Science and Technology, vol. 14, no. 1, pp. 1–7, Aug. 2018, doi: 10.14710/IJFST.14.1.1-7
Tjatur Sesulihatien, “Observation of Fish Dissemination Pattern on Madura Coastal Using Segmentation of Satellite Images,” EMITTER International Journal of Engineering Technology, vol. 7, no. 1, 2019
This area has high values of Coloured Dissolved Matter (CDOM) and suspended material due to the estuary around the beach [18], [19].
Kurniawan, “Distribution pattern of potential fishing zones in the Bangka Strait waters: An application of the remote sensing technique,” Egyptian Journal of Remote Sensing and Space Science, vol. 25, no. 1, pp. 257–265, Feb. 2022, doi: 10.1016/J.EJRS.2021.12.003
Rahman, “Sebaran spasio temporal kelimpahan fitoplankton dan klorofil-a di perairan ujung kartini jepara (Spatial and Temporal Distribution Abundance of Phytoplankton and Chlorophyll-a in Ujung Kartini Waters Jepara),” Saintek Perikanan: Indonesian Journal of Fisheries Science and Technology, vol. 14, no. 1, pp. 1–7, Aug. 2018, doi: 10.14710/IJFST.14.1.1-7
Tjatur Sesulihatien, “Observation of Fish Dissemination Pattern on Madura Coastal Using Segmentation of Satellite Images,” EMITTER International Journal of Engineering Technology, vol. 7, no. 1, 2019
Online since: January 2014
Authors: Yu Guo Wei, Wei Feng Zhou, Yuan Yuan Li
Material parameters can be seen in table 1; the model’s mesh generation and the cloud chart of vertical displacement are shown in Fig.1 and 2.
(4) Response analysis of fatigue breakdown of pavement materials In the later period of the bituminous pavement, the structural layer’s anti-bending capacity is reflected by the allowable tensile stress [3,4].
Thereinto: (1) In the formula: ——allowable tensile stress of materials of the pavement structure layer, MPa ——splitting strength of materials of the structural layer, MPa; ——structural coefficient of tensile strength As for asphalt concrete pavement (2) As for inorganic binder stabilized base (3) In the formula: ——highway classification coefficient, that of expressway and first-class highway is 1.0, that of second-class highway is 1.1; ——grading coefficient of bituminous mixture, that of fine and medium-grain bituminous concrete is 1.0, that of coarse-grain is 1.1; ——accumulative equivalent axles of a lane in the design life.
It is calculated that the additional stress of the basement layer of the bituminous pavement is greater than the allowable tensile stress 0.22MPa and the pavement is damaged by fatigue cracking when the ratio of alter gradient of differential settlement in the later period exceeds 0.25%, which can be the control standard for differential settlement with regard to fatigue attenuation of bituminous pavement materials. 2.2 Control standard and classification of differential settlement (1) Control index of differential settlement In the paper, the control target of differential settlement is confirmed in overall consideration of tensile strength and fatigue properties of the pavement material.
Journal of Chang'an University (natural science edition. 2010.
(4) Response analysis of fatigue breakdown of pavement materials In the later period of the bituminous pavement, the structural layer’s anti-bending capacity is reflected by the allowable tensile stress [3,4].
Thereinto: (1) In the formula: ——allowable tensile stress of materials of the pavement structure layer, MPa ——splitting strength of materials of the structural layer, MPa; ——structural coefficient of tensile strength As for asphalt concrete pavement (2) As for inorganic binder stabilized base (3) In the formula: ——highway classification coefficient, that of expressway and first-class highway is 1.0, that of second-class highway is 1.1; ——grading coefficient of bituminous mixture, that of fine and medium-grain bituminous concrete is 1.0, that of coarse-grain is 1.1; ——accumulative equivalent axles of a lane in the design life.
It is calculated that the additional stress of the basement layer of the bituminous pavement is greater than the allowable tensile stress 0.22MPa and the pavement is damaged by fatigue cracking when the ratio of alter gradient of differential settlement in the later period exceeds 0.25%, which can be the control standard for differential settlement with regard to fatigue attenuation of bituminous pavement materials. 2.2 Control standard and classification of differential settlement (1) Control index of differential settlement In the paper, the control target of differential settlement is confirmed in overall consideration of tensile strength and fatigue properties of the pavement material.
Journal of Chang'an University (natural science edition. 2010.
Online since: September 2016
Authors: N. Lakshmi Narasimhan, P. Karthik
LHTS systems employ special materials referred to as phase change materials (PCMs) for storing and retrieval of thermal energy.
Al-Hallaj, A review on phase change energy storage: materials and applications, Ener Conv.
[2] Sharma., Review on thermal energy storage with phase change materials and applications, Renew.
Khodadadi, Thermal conductivity enhancement of phase change materials for thermal energy storage: A review, Ren.
Siddarth Arumugam., Numerical Studies on the Performance Enhancement of an Encapsulated Thermal storage unit, Internal Journal of Thermal Science (84) (2014) 184-195
Al-Hallaj, A review on phase change energy storage: materials and applications, Ener Conv.
[2] Sharma., Review on thermal energy storage with phase change materials and applications, Renew.
Khodadadi, Thermal conductivity enhancement of phase change materials for thermal energy storage: A review, Ren.
Siddarth Arumugam., Numerical Studies on the Performance Enhancement of an Encapsulated Thermal storage unit, Internal Journal of Thermal Science (84) (2014) 184-195
Online since: March 2013
Authors: Bo Lin He, Xin Zhang, Yan Song
Among all the solder material, the tin-lead alloy solder is used most widely and its consumption in China is beyond ten thousand tons.
For example, IBM, AT&T, Bell, Motorola and Sandia national laboratory put a strength into the research of this kind of important Metallic Functional Materials, NCMS united eight companies which value 10 million dollars such as GM-Delco Electronics and Ford Motor Company cost 4 years to research dozens of substitution for Sn-Pb soldering filler metal, among those substitutions, Sn-3.8Bi, Sn-3.5Ag-4.8Bi and Sn-3.5Ag were considered as the most promising material used in microelectronics surface assembly.
The result shows that soldering filler metal can achieve good property under rapid solidification, for example, ultra refined of grain can make material gain high strength and toughness.
Acknowledgment The work is supported by the Science Foundation of East China Jiaotong University.
Material, Vol.41(1999), p.1269 [12] Liu P L, Shang J K: Materials research society, Vol.15(2000), p.1651 [13] Katsuaki S, Toshikazn M, Hirojr N: Materials research society, Vol.15(2000), p.884 [14] Chang-Bae, Seung-Boo J, Yang-Eui S, et al: Mater Tanans., Vol.42(2001), p.751 [15] Yasayuki M, Tadashi A: Mater Tanans., Vol.42(2001), p.776 [16] Huang M L, Yu D Q, Wang L, et al: Transactions of Nonferrous Metals Society of China, Vol.12(2002), p.486 [17] Man H, Zhang K K, Liu Y M, et al: Hot Working Technology, Vol.33(2004), p.45(in Chinese) [18] Chen G H, Li X Y, Geng Z T, et al: Rare Metal Materials and Engineering, Vol.33(2004), p.1222(in Chinese) [19] Xue S B, Yu S L: Transaction of the China Welsing Institution, Vol.25(2004), p.1 [20] He B L: Materials for Mechanical Engineering, Vol.21(2004), p.72(in Chinese)
For example, IBM, AT&T, Bell, Motorola and Sandia national laboratory put a strength into the research of this kind of important Metallic Functional Materials, NCMS united eight companies which value 10 million dollars such as GM-Delco Electronics and Ford Motor Company cost 4 years to research dozens of substitution for Sn-Pb soldering filler metal, among those substitutions, Sn-3.8Bi, Sn-3.5Ag-4.8Bi and Sn-3.5Ag were considered as the most promising material used in microelectronics surface assembly.
The result shows that soldering filler metal can achieve good property under rapid solidification, for example, ultra refined of grain can make material gain high strength and toughness.
Acknowledgment The work is supported by the Science Foundation of East China Jiaotong University.
Material, Vol.41(1999), p.1269 [12] Liu P L, Shang J K: Materials research society, Vol.15(2000), p.1651 [13] Katsuaki S, Toshikazn M, Hirojr N: Materials research society, Vol.15(2000), p.884 [14] Chang-Bae, Seung-Boo J, Yang-Eui S, et al: Mater Tanans., Vol.42(2001), p.751 [15] Yasayuki M, Tadashi A: Mater Tanans., Vol.42(2001), p.776 [16] Huang M L, Yu D Q, Wang L, et al: Transactions of Nonferrous Metals Society of China, Vol.12(2002), p.486 [17] Man H, Zhang K K, Liu Y M, et al: Hot Working Technology, Vol.33(2004), p.45(in Chinese) [18] Chen G H, Li X Y, Geng Z T, et al: Rare Metal Materials and Engineering, Vol.33(2004), p.1222(in Chinese) [19] Xue S B, Yu S L: Transaction of the China Welsing Institution, Vol.25(2004), p.1 [20] He B L: Materials for Mechanical Engineering, Vol.21(2004), p.72(in Chinese)
Online since: June 2010
Authors: J. Kamran, M. Sarwar, M. Feroz
Khan, Pakistan
2
Advanced Materials Laboratory, P.O. 1509, Islamabad, Pakistan
a
jawedkamran1@yahoo.com
Keywords: Vacuum Arc Melting, Stainless steel, Solidification, shrinkage cavity, Process
Parameters.
The loss of this material severely affects the metals industry.
The arc heats both the start material and the electrode tip; eventually both of them melt down.
In this way materials loss due to shrinkage is compensated by the molten metal and shrinkage cavity gets chance to come up.
Stefanescu, Modelling and Simulation in Materials Science and Engineering, Vol. 5, No. 4, pp. 391-420,1997 [17] L.
The loss of this material severely affects the metals industry.
The arc heats both the start material and the electrode tip; eventually both of them melt down.
In this way materials loss due to shrinkage is compensated by the molten metal and shrinkage cavity gets chance to come up.
Stefanescu, Modelling and Simulation in Materials Science and Engineering, Vol. 5, No. 4, pp. 391-420,1997 [17] L.
Online since: February 2011
Authors: Abdan Khalina, Harmaen Ahmad Saffian, Jalaluddin Harun, Paridah Md Tahir
The purpose of this study is to evaluate either it is feasible to create an MDF that complies with the current standard using young rubberwood in order to compensate the current shortage of raw materials in MDF industries.
Materials and Methods The planting location for this clone series of rubber tree is determined, at latitude N5o and longitude E112oE which has average of rain is about 4000 mm a year.
The amount of fibre and the amount E1-grade urea formaldehyde resin for each board were calculated based on the oven dry weight of the fibre materials.
International Journal of Reliability and Applications. (2003);4:157-170
Forest Products and Wood Science.
Materials and Methods The planting location for this clone series of rubber tree is determined, at latitude N5o and longitude E112oE which has average of rain is about 4000 mm a year.
The amount of fibre and the amount E1-grade urea formaldehyde resin for each board were calculated based on the oven dry weight of the fibre materials.
International Journal of Reliability and Applications. (2003);4:157-170
Forest Products and Wood Science.
Online since: February 2011
Authors: Pi Hsia Hung, Chien Yu Lin, Yen Huai Jen, Chien Chi Lin
The purpose of training steps is to make teachers participating in the study realize and design the teaching materials with virtual 3D models.
According to relevant documents, the demonstration of multimedia information can effectively elevate users’ desire to learn; therefore, the design and application of multimedia teaching materials grow into a profitable instrument in the aspect of education.
However, related references indicate the sources are so complicate that users have difficulty receiving the information when performing multimedia teaching materials.
The animated design of virtual space usually makes use of maze games to do the research about the spatial concepts of children and the main element of virtual labyrinth, no matter there are references and guidance materials or not.
This design of teaching materials offers both teachers and students a novel learning method of spatial sense.
According to relevant documents, the demonstration of multimedia information can effectively elevate users’ desire to learn; therefore, the design and application of multimedia teaching materials grow into a profitable instrument in the aspect of education.
However, related references indicate the sources are so complicate that users have difficulty receiving the information when performing multimedia teaching materials.
The animated design of virtual space usually makes use of maze games to do the research about the spatial concepts of children and the main element of virtual labyrinth, no matter there are references and guidance materials or not.
This design of teaching materials offers both teachers and students a novel learning method of spatial sense.