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Online since: February 2012
Authors: Jin Li, Xiang Yang Qin, Chen Ma, Jun Jun Wang, Chun Jiang Zhao
Based on the analysis of the key points of quality and safety of agricultural products on the basis of monitoring, this paper introduces vegetable quality safety supervision information facility equipped for engineering application, and takes the prospect of agricultural product quality safety supervision information tech90nology equipment.
With the development of life science, information science, materials science, environmental science, control science and the comprehensive osmosis in the field of agriculture, agricultural equipment has gradually developed from the traditional type to informatization and intelligent direction.
Therefore, in processing storage, it is very necessary to strengthen key point control of the check and acceptance of raw materials, processing and distribution.
Vegetable Quality Safety Supervision Information Facility Equipped for Engineering Application Production Quality Control.
Transactions of the Chinese Society of Agricultural Engineering.
With the development of life science, information science, materials science, environmental science, control science and the comprehensive osmosis in the field of agriculture, agricultural equipment has gradually developed from the traditional type to informatization and intelligent direction.
Therefore, in processing storage, it is very necessary to strengthen key point control of the check and acceptance of raw materials, processing and distribution.
Vegetable Quality Safety Supervision Information Facility Equipped for Engineering Application Production Quality Control.
Transactions of the Chinese Society of Agricultural Engineering.
Online since: June 2014
Authors: Ji Hua Wang, Jian Fei Guan, Shan Shan Zhang, Dan Zhu
Validation of Gene Engineering Bacteria.
Application of Gene Engineering Bacteria in Polluted Environment Remediation Application of Gene Engineering Bacteria in Pesticide Contaminated Sites.
Furthermore, the safety aspects of genetic engineering.
Acknowledgments This work supported by National Natural Science Foundation of China (NO. 51108145), Science and Technology Key Research of Educational Committee of Heilongjiang Province (NO. 12521z010) and The Key Biology Subject.
Fine Chemical Raw Materials and Intermediates.
Application of Gene Engineering Bacteria in Polluted Environment Remediation Application of Gene Engineering Bacteria in Pesticide Contaminated Sites.
Furthermore, the safety aspects of genetic engineering.
Acknowledgments This work supported by National Natural Science Foundation of China (NO. 51108145), Science and Technology Key Research of Educational Committee of Heilongjiang Province (NO. 12521z010) and The Key Biology Subject.
Fine Chemical Raw Materials and Intermediates.
Online since: December 2010
Authors: Jing Min Duan
In view of confusion phase of reinforcement philosophy and method in existing engineering structure now, the paper analyses wreck of existing engineering structure as a result of the earthquake, put forward “Degree of Monolithic Secure” thought and probe into its application in aseismic strengthening of existing engineering structure.
The principle of “Degree of Monolithic Secure” of building and civil engineering structures on the basis of the understanding of the mechanics, structures, materials and equipment faction, comprehending of the design, construction, use and practice, and obtaining some fundamental request through summarize experience in strengthening on the long term project epoch, all these have important guide to the Degree of Monolithic Secure.
To lessen own weight can take the following measures: a). using the lightweight high-strength materials, such as lightweight aggregate concrete, and plastic products; b). choosing the reasonable structural arrangement. 5) The principle of deformation coordination. strengthening the building and civil engineering structures in “Degree of Monolithic Secure”, should as far as possible coordinate the deformation of every structural member.
The seismic strengthening for engineering technology on the basis of conception structural ductility problem in earthquake engineering.
Journal of Structural Engineering, Vol.123(1997).p.11-19
The principle of “Degree of Monolithic Secure” of building and civil engineering structures on the basis of the understanding of the mechanics, structures, materials and equipment faction, comprehending of the design, construction, use and practice, and obtaining some fundamental request through summarize experience in strengthening on the long term project epoch, all these have important guide to the Degree of Monolithic Secure.
To lessen own weight can take the following measures: a). using the lightweight high-strength materials, such as lightweight aggregate concrete, and plastic products; b). choosing the reasonable structural arrangement. 5) The principle of deformation coordination. strengthening the building and civil engineering structures in “Degree of Monolithic Secure”, should as far as possible coordinate the deformation of every structural member.
The seismic strengthening for engineering technology on the basis of conception structural ductility problem in earthquake engineering.
Journal of Structural Engineering, Vol.123(1997).p.11-19
Online since: September 2013
Authors: Xiao Ling Sun, Fu Ming Chen, Qiu Ge Yang, Xu Guang Sun, Shan Shan Li
The Key Management Scheme for the WMSN-based Post-Disaster Road Monitoring System
Xiaoling Sun, Xuguang Sun, Shanshan Li, Fuming Chen, Qiuge Yang
Department of Disaster Information Engineering, Institute of Disaster Prevention, Sanhe,China
{sunxiaoling, sunxuguang, lishanshan, chenfuming, yangqiuge }@fzxy.edu.cn
Keywords: sensor networks, key management scheme, post-disaster road , monitoring system
Abstract.
The q-composite key predistribution also uses a key pool but requires two sensors compute a pairwise key from at least q predistributed keys they share.
Application Of Wsn In Post-Disaster Road Monitoring System After the earthquake, roads and bridges are damaged, transmission and communication are interrupted, so the manpower and material for rescue can not be implemented in the first time to the disaster-affected area.
The time of decrypting key is longer than the time of updating key.
In the key establishment phase, the station and nodes consult shared keys with stored variables, including the key between cluster node and sense node, the key between cluster node and station.
The q-composite key predistribution also uses a key pool but requires two sensors compute a pairwise key from at least q predistributed keys they share.
Application Of Wsn In Post-Disaster Road Monitoring System After the earthquake, roads and bridges are damaged, transmission and communication are interrupted, so the manpower and material for rescue can not be implemented in the first time to the disaster-affected area.
The time of decrypting key is longer than the time of updating key.
In the key establishment phase, the station and nodes consult shared keys with stored variables, including the key between cluster node and sense node, the key between cluster node and station.
Online since: February 2011
Authors: Jian Guo Qiang
Innovation Design in Machine Theory for Mechanical
Engineering Education
Jian Guo Qiang
School of Mechano-Electronic Engineering, Lanzhou University of Technology, Lanzhou 730050,China
qiangjianguo@lut.cn
Keywords: Machine Theory; Innovation Design Practice; Mechanical Engineering Education
Abstract.
In order to improve the quality of education and develop innovation education, the Ministry of Education of China has implemented a higher engineering education content and curriculum reform plans, and built some bases of engineering courses.
Significance of innovation design practice for mechanical engineering education.
(3) Function requirements and key problems A detailed description of function requirements and key problems for the design subjects
High Engineering Education and Research vol. 2(2007), p.1.
In order to improve the quality of education and develop innovation education, the Ministry of Education of China has implemented a higher engineering education content and curriculum reform plans, and built some bases of engineering courses.
Significance of innovation design practice for mechanical engineering education.
(3) Function requirements and key problems A detailed description of function requirements and key problems for the design subjects
High Engineering Education and Research vol. 2(2007), p.1.
Online since: February 2011
Authors: Chun Yan Wu, Bing Chen, Yu Guang Fan
Persist in Cultivation of Engineering Drawing Ability & Improve Ability of Students' Engineering Practice
Bing Chena, Yu Guang Fanb and Chun Yan Wuc
School of Mechanical Engineering, Xi’an Shiyou University, Xi’an, 710065, China
abchen@xsyu.edu.cn, bygfan@xsyu.edu.cn, cwcyan@xsyu.edu.cn
Key words: Engineering Practice Ability, Engineering Drawing Ability, Cultivation
Abstract: Currently, the education of engineering college faces the pivotal problem of how to improve students' engineering practice ability.
What is engineering, then?
For nearly 20 years, the definition of modern engineering which being gradually accepted is given by Massachusetts Institute, i.e. engineering is one creative profession in respect of scientific knowledge and technology development and application which meet the social needs within the limits of materials, economy, labor, politics, laws and culture.
Therefore, this major includes a series of major courses, including mechanical cartography, theoretical mechanics, mechanics of materials, mechanical principle, mechanical design, fluid mechanics of chemical engineering, principle and application of thermodynamics, design of process equipment, equipment manufacturing process and technology of process equipment complete.
During the 2nd year, the importance of engineering practice course system is metalworking practice as well as theoretical mechanics and mechanics of materials.
What is engineering, then?
For nearly 20 years, the definition of modern engineering which being gradually accepted is given by Massachusetts Institute, i.e. engineering is one creative profession in respect of scientific knowledge and technology development and application which meet the social needs within the limits of materials, economy, labor, politics, laws and culture.
Therefore, this major includes a series of major courses, including mechanical cartography, theoretical mechanics, mechanics of materials, mechanical principle, mechanical design, fluid mechanics of chemical engineering, principle and application of thermodynamics, design of process equipment, equipment manufacturing process and technology of process equipment complete.
During the 2nd year, the importance of engineering practice course system is metalworking practice as well as theoretical mechanics and mechanics of materials.
Online since: February 2011
Authors: Dong Jiang Wu, Xiao Kang Liang, Li Jia Jiang, Qian Li
Fabrication of SS316L/Ni25 Functionally Gradient Materials using Laser Engineered Net Shaping
Dongjiang Wua, Xiaokang Liang, Qian Li, Lijia Jiang
Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian Liaoning 116024, PR China
adjwudut@dlut.edu.cn
Keywords: LENS, FGM, SS316L, Ni25,Microstructure
Abstract: Functionally gradient materials(FGMs) were successfully fabricated with compositions gradually changed from 100% stainless steel 316L to 100% Ni25 alloy using laser engineered net shaping(LENS) technology.
Introduction Since the mid-1980s, the processing of Functionally Gradient Materials(FGMs) and structures has become an academic interest.
Watanabe: Engineering Fracture Mechanics Vol. 69 (2002), p. 1713-1728 [2] G.P.
Mazumder: Materials Science and Engineering A Vol. 509 (2009), p. 98-104 [3] Q.X.
Huang: Materials Science and Engineering A Vol. 391 (2005), p. 325-336 [5] M.L.
Introduction Since the mid-1980s, the processing of Functionally Gradient Materials(FGMs) and structures has become an academic interest.
Watanabe: Engineering Fracture Mechanics Vol. 69 (2002), p. 1713-1728 [2] G.P.
Mazumder: Materials Science and Engineering A Vol. 509 (2009), p. 98-104 [3] Q.X.
Huang: Materials Science and Engineering A Vol. 391 (2005), p. 325-336 [5] M.L.
Online since: January 2013
Authors: Yu Lan Yin, Tao Tang
The key of EC implementation planning is to determine the three time points, which are the start time point for implementation EC, the switching time point for new materials and old materials, and the EC implementation date.
Production schedule Exhausting schedule for old materials Introduction schedule for new materials Engineering change Implementation schedule Old materials Lead time for new materials New materials consumption time The time point for cutting into new materials Assembly &packing Shipping Internal EC activities EC implemented ECIP Start time point for engineering change project Standard switching time point for new and old materials Engineering change implementation start time point End time point for engineering change project Engineering change implementation date Purchase order or work order release time point Fig.1 EC Implementation Planning Type-1 EC implementation planning type-2.As shown in Fig.2, the new materials have arrived before the old materials are exhausted, and this time difference is called Gap-1.
Engineering change implementation start time point Production schedule Exhausting schedule for old materials Introduction schedule for new materials Engineering change Implementation schedule Old materials consumption time Lead time for new materials New materials consumption time The time point for cutting into new materials Shipping Internal EC activities EC implemented ECIP Start time point for engineering change project Switching time point for new and old materials- switching time point type-B End time point for engineering change project Engineering change implementation date Assembly & packing time Switching time point for new and old materials- switching time point type-A Gap-1 Production adjustment-1 happen if switching time point A to B Excess inventory transfer switching time point type-A to type-B Purchase order or work order release time point EC implementation planning type-3.Fig.3 presents that the new materials arrive after the old materials
Production schedule Exhausting schedule for old materials Introduction schedule for new materials Engineering change Implementation schedule Old materials consumption time Lead time for new materials New materials consumption time The time point for cutting into new materials Shipping Internal EC activities EC implemented ECIP Start time point for engineering change project Engineering change implementation start time point End time point for engineering change project Engineering change implementation date Assembly & packing Switching time point for new and old materials- switching time point type-C Gap-2 Production adjustment-2 happen if switching point from Type-C to D Purchase order or work order release time point Switching time point for new and old materials- switching time point type-D Resupplying time for old materials Fig.3 EC Implementation Planning Type-3 Conclusion This paper discusses how the appropriate timetable for primary EC implementation
Research in Engineering Design, v22, n2, P 103-124.
Production schedule Exhausting schedule for old materials Introduction schedule for new materials Engineering change Implementation schedule Old materials Lead time for new materials New materials consumption time The time point for cutting into new materials Assembly &packing Shipping Internal EC activities EC implemented ECIP Start time point for engineering change project Standard switching time point for new and old materials Engineering change implementation start time point End time point for engineering change project Engineering change implementation date Purchase order or work order release time point Fig.1 EC Implementation Planning Type-1 EC implementation planning type-2.As shown in Fig.2, the new materials have arrived before the old materials are exhausted, and this time difference is called Gap-1.
Engineering change implementation start time point Production schedule Exhausting schedule for old materials Introduction schedule for new materials Engineering change Implementation schedule Old materials consumption time Lead time for new materials New materials consumption time The time point for cutting into new materials Shipping Internal EC activities EC implemented ECIP Start time point for engineering change project Switching time point for new and old materials- switching time point type-B End time point for engineering change project Engineering change implementation date Assembly & packing time Switching time point for new and old materials- switching time point type-A Gap-1 Production adjustment-1 happen if switching time point A to B Excess inventory transfer switching time point type-A to type-B Purchase order or work order release time point EC implementation planning type-3.Fig.3 presents that the new materials arrive after the old materials
Production schedule Exhausting schedule for old materials Introduction schedule for new materials Engineering change Implementation schedule Old materials consumption time Lead time for new materials New materials consumption time The time point for cutting into new materials Shipping Internal EC activities EC implemented ECIP Start time point for engineering change project Engineering change implementation start time point End time point for engineering change project Engineering change implementation date Assembly & packing Switching time point for new and old materials- switching time point type-C Gap-2 Production adjustment-2 happen if switching point from Type-C to D Purchase order or work order release time point Switching time point for new and old materials- switching time point type-D Resupplying time for old materials Fig.3 EC Implementation Planning Type-3 Conclusion This paper discusses how the appropriate timetable for primary EC implementation
Research in Engineering Design, v22, n2, P 103-124.
Online since: July 2011
Authors: Jun Hong Su, Wen Bo Wan, Li Hong Yang, Jun Qi Xu
Then getting surface of the measured material object, thus the measured material object is measured automatically.
To get the interferogram with information of measured material object base on the principle of interferometry[6].
Wave surface of measured material object could be restored by 2D-IFFT and phase unwrapping after the steps.
Region spreading is the key step of interferogram preprocessing.
Vol. 30(2009), p. 76 [3] Ge Jin-man, SU Jun-hong: Infrared And Laser Engineering.
To get the interferogram with information of measured material object base on the principle of interferometry[6].
Wave surface of measured material object could be restored by 2D-IFFT and phase unwrapping after the steps.
Region spreading is the key step of interferogram preprocessing.
Vol. 30(2009), p. 76 [3] Ge Jin-man, SU Jun-hong: Infrared And Laser Engineering.
Online since: February 2013
Authors: Li Jian
Research Status and Future Development of Smart Materials and Structures
Li Jian
Architecture and Civil Engineering School Inner Mongolia University of Science and Technology, Baotou, China
nkdlj@163.com
Keywords: smart materials and structures, intelligent sensing technology, intelligent information processing and transmission, intelligent driving technology, intelligent control technology.
As a newly emerging frontier interdiscipline, smart materials and structures possesses the great development potential and wide application prospect, and has become one of the research focuses at home and abroad.The research status of smart materials and structures is summarized, and its key technologies are analyzed. the future development of smart materials and structures is presented.
People put forward more and more requirements of the use of materials, the traditional structure material and functions of the material can not meet the requirements of these technologies, the development of material science convert from the traditional single and only the bearing capacity of the structure materials and functions of materials to multifunctional, intelligent structure material.
The present study and the main drive element: piezoelectric element, shape memory alloy, electricity to/magnetostrictive materials, electrical/magnetic flow variant, piezoelectric composite materials, polymer gel, etc
(4) Piezoelectric composite material Piezoelectric composite materials are piezoelectric phase materials (such as piezoelectric ceramic) and the piezoelectric phase materials (such as polymer) according to certain connected way compound formed a kind of piezoelectric effect of composite materials.
As a newly emerging frontier interdiscipline, smart materials and structures possesses the great development potential and wide application prospect, and has become one of the research focuses at home and abroad.The research status of smart materials and structures is summarized, and its key technologies are analyzed. the future development of smart materials and structures is presented.
People put forward more and more requirements of the use of materials, the traditional structure material and functions of the material can not meet the requirements of these technologies, the development of material science convert from the traditional single and only the bearing capacity of the structure materials and functions of materials to multifunctional, intelligent structure material.
The present study and the main drive element: piezoelectric element, shape memory alloy, electricity to/magnetostrictive materials, electrical/magnetic flow variant, piezoelectric composite materials, polymer gel, etc
(4) Piezoelectric composite material Piezoelectric composite materials are piezoelectric phase materials (such as piezoelectric ceramic) and the piezoelectric phase materials (such as polymer) according to certain connected way compound formed a kind of piezoelectric effect of composite materials.