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Online since: February 2013
Authors: Xin Lin He, Wen Xin Yang, Guang Yang, Shuang Dui Xu, Si Chen
The Study of Native Plants Water Consumption Characteristic in Gurbantunggut Desert
Wenxin Yang1,2,Xinlin He 1,2,*,Guang Yang1,2, Shuangdui Xu1,2, Si Chen1,2
1College of Water Conservancy & Architectural Engineering Shihezi University,Shihezi, 832000, China;
2Xinjiang Production & Construction Group Key Laboratory of Modern Water-Saving Irrigation, Shihezi, 832003, China;
3314728370@qq.com, hexinlin2002@163.com, mikeyork@163.com, 1039248093@qq.com, 724844262@qq.com
Keywords: liquid sap flux density, meteorological factor; desert vegetation, Gurbantunggut Desert
Abstract.The plants' sap flow can characterize water transpiration and consumption, reflect water transmission situation and then determine the vegetation ecological water requirement.
Desert vegetation transpiration water is a key factor of ecological water requirement, water consumption of plant root absorption is more than 99.8% in transpiration[2], so accurately estimating trunk rising fluid flow and determining transpiration water consumption become an important process for the calculation of ecological water requirement.
Because Granier probe to the variation of the temperature is anomaly sensitive, the probes were external packaged radiation material to reduce the thermal radiation to probe the interference, at the same time it can prevent rain immersion effect to guarantee the determination results from the influence of a certain extent.
Acknowledgements We acknowledge the support from National Basic Research Program of China (2011CB411905); The national natural science fund project (U1203282)(51269026), Key Project of Chinese National Programs for Fundamental Researchand Development (2010CB951004); International cooperation project of Bingtuan (2012BC004).
Desert vegetation transpiration water is a key factor of ecological water requirement, water consumption of plant root absorption is more than 99.8% in transpiration[2], so accurately estimating trunk rising fluid flow and determining transpiration water consumption become an important process for the calculation of ecological water requirement.
Because Granier probe to the variation of the temperature is anomaly sensitive, the probes were external packaged radiation material to reduce the thermal radiation to probe the interference, at the same time it can prevent rain immersion effect to guarantee the determination results from the influence of a certain extent.
Acknowledgements We acknowledge the support from National Basic Research Program of China (2011CB411905); The national natural science fund project (U1203282)(51269026), Key Project of Chinese National Programs for Fundamental Researchand Development (2010CB951004); International cooperation project of Bingtuan (2012BC004).
Online since: September 2011
Authors: Shi Biao Huang
Innovative Design and Simulation for a Novel Vane Pump
Shibiao Huang
Institute of Engineering Zhejiang Business Technology Institute
Ningbo, Zhejiang Province, P.R.
China, 315012 ebiaohuang@126.com Key words: Vane, Finite element analysis, Wear and vibration, Volumetric efficiency.
Model analysis for vane It is shown in Fig. 19 and Fig. 20, vanes are meshed with unit of SOLID45, material of vane is 45 steel which young modulus is 220 GPa,Poisson ratio is 0.31,density is .
China, 315012 ebiaohuang@126.com Key words: Vane, Finite element analysis, Wear and vibration, Volumetric efficiency.
Model analysis for vane It is shown in Fig. 19 and Fig. 20, vanes are meshed with unit of SOLID45, material of vane is 45 steel which young modulus is 220 GPa,Poisson ratio is 0.31,density is .
Online since: February 2014
Authors: Go Lin Jing, Wei Jie Hu, Bai Sun Liao, Guang Feng Zhen
The Research of the Oil Base Drilling Fluid Hard Brittle Shale Sidewall Instability Mechanism
Zhen Guangfeng1 ,Jing Golin1, Hu weijie2, Liaobaisun2
1 Provincial Key Laboratory of Oil &Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University,Daqing,163318,China
2 Oil Recovery Plant No. 5, Daqing 163514, China
Keywords: Wellbore instability; The Formation of the Shale; Drilling fluid; Cation exchange capacity; Hydration reaction
Abstract.
Pore and micro cracks reduce oil processing samples, rational layer sample variation and water treatment compared with the sample, under the electron microscope is more bright, this is due to less conductive material in water samples, the hydration clay mineral equivalent more, so to prove that water treatment more easily than oil processing sample hydration.
Pore and micro cracks reduce oil processing samples, rational layer sample variation and water treatment compared with the sample, under the electron microscope is more bright, this is due to less conductive material in water samples, the hydration clay mineral equivalent more, so to prove that water treatment more easily than oil processing sample hydration.
Online since: February 2014
Authors: Hiroyuki Yaguchi, Yasuto Hijikata, Shuhei Yagi, Yurie Akasaka
Si emission into the oxide layer during oxidation of silicon carbide
Yasuto Hijikataa *, Yurie Akasaka, Shuhei Yagib, and Hiroyuki Yaguchic
Graduate School of Science and Engineering, Saitama University
255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
a yasuto@opt.ees.saitama-u.ac.jp, byagi@, cyaguchi@
Keywords: oxidation mechanism, Si and C emission, SiC-oxide interface
Abstract.
Introduction It is still a severe issue that the prospective low on-resistances from the material properties of SiC have not been provided from actually fabricated SiC-MOSFETs, especially for 4H-SiC.
Anyway, it must be said that Si and/or C emission during oxidation is the key to elucidate the origin of interface trap of the SiO2/SiC interface.
Introduction It is still a severe issue that the prospective low on-resistances from the material properties of SiC have not been provided from actually fabricated SiC-MOSFETs, especially for 4H-SiC.
Anyway, it must be said that Si and/or C emission during oxidation is the key to elucidate the origin of interface trap of the SiO2/SiC interface.
Online since: September 2015
Authors: Andrey Berezin, Natalia Gorodnova, Elena Shablova
., Ekaterinburg, 620014 Russia
ae.shablova@rambler.ru, bqorodnova243@mail.ru, caberezin01@g.harvard.edu
Key words: Energy conservation, Energy efficiency, Energy conservation legislation, Energy service contract, Subject of energy service contract
Abstract.
Based on the priority areas of science, technology, and engineering in the Russian civil nature (approved by Presidential Decree, July 7th, 2011. № 899), we can state that the Russia’s energy services will receive intensive and priority development in the medium term.
Prospects of development of energy service legislation in Russia Russian business practices of contractual regulation of relations within energy service activity has not yet accumulated a wealth of experience in forming the content of contracts, so there is no material for generalization and litigation related to the execution of contractual obligations.
Based on the priority areas of science, technology, and engineering in the Russian civil nature (approved by Presidential Decree, July 7th, 2011. № 899), we can state that the Russia’s energy services will receive intensive and priority development in the medium term.
Prospects of development of energy service legislation in Russia Russian business practices of contractual regulation of relations within energy service activity has not yet accumulated a wealth of experience in forming the content of contracts, so there is no material for generalization and litigation related to the execution of contractual obligations.
Online since: January 2012
Authors: Rong Rong Han, Hui Sun
Calculation of Array Gain in the Reverberation Field
Han Rongrong1, a, Sun Hui2,b
1.2National Laboratory of Underwater Acoustic Technology,
Harbin Engineering University, Harbin, Heilongjiang Province, China
ahanrongrong@hrbeu.edu.cn, bheusunhui@126.com
Keywords: Reverberation; Array gain; Correlation coefficient
Abstract.
Bottom Reverberation Signal Model Effect is more complex because of different components of the ocean bottom (the structure, density, porosity, viscosity, roughness, etc. of the bottom material from hard rock to ooze mud) and multi-layered structure (velocity layer).
Array Gain Calculation Array gain is calculated as (8) The key to calculate the correlation coefficient is and .
Bottom Reverberation Signal Model Effect is more complex because of different components of the ocean bottom (the structure, density, porosity, viscosity, roughness, etc. of the bottom material from hard rock to ooze mud) and multi-layered structure (velocity layer).
Array Gain Calculation Array gain is calculated as (8) The key to calculate the correlation coefficient is and .
Online since: March 2010
Authors: Juan Du, Xian Guo Yan, Zhi Chen
A Multi-agent based tool path planning method for STEP-NC compliant
milling
Juan Du1, a, Xianguo Yan1,b and Zhi Chen1,c
1
Sch.of Mechanical and Electronic Engineering, Taiyuan University of Science and Technology,
Taiyuan, 030024, China
a
lgzdj1999@163.com, bchina_azalea@163.com, czichenzhi2005@sina.com
Keywords: multi-agent, STEP-NC, manufacturing feature, tool path planning
Abstract.
When the system begins to plan tool path, the STEP-NC program of machined part is firstly imported into the system, and then the information extract agent recognizes and extracts the useful information from the program according to given key words, and inputs the information into the database.
In this figure, pink lines denote the rapid movement track of cutter approaching to or retracting from the part, and green lines show the movement path of cutter when it removes redundant material from the part.
When the system begins to plan tool path, the STEP-NC program of machined part is firstly imported into the system, and then the information extract agent recognizes and extracts the useful information from the program according to given key words, and inputs the information into the database.
In this figure, pink lines denote the rapid movement track of cutter approaching to or retracting from the part, and green lines show the movement path of cutter when it removes redundant material from the part.
Online since: December 2007
Authors: Ri Liang Liu, Cheng Rui Zhang, Xian Zhi Zhang
Zhang
1,c
1
Department of Mechanical Engineering, Shandong University, Jinan, 250061, China
a
liuriliang@sdu.edu.cn, bzhizhi@mail.sdu.edu.cn,
c
crzhang@sdu.edu.cn
Keywords: Intelligent manufacturing, CNC, STEP-NC
Abstract.
Fig.4 Example of Java classes definition Fig.6 Human interface for interactive process planning express_entity manufacturing_feature its_id: public String its_material: public workpiece its_operations: public machining_operation[] two5D_manufacturing_feature feature_placement: public axis2_placement_3d depth: public elementary_surface machining_feature pocket its_boss: public boss[] slope: Double bottom_condition: public pocket_bottom_condition planar_radius: public toleranced_length_measure orthogonal_radius: public toleranced_length_measure closed_pocket feature_boundary: public closed_profile Class inheritance Attributes: data type Base class with attributes inherited directly from Object.
Summary This paper presented a framework for STEP-compliant CNC (ST-CNC), together with a description of key issues and solutions for implementation.
Fig.4 Example of Java classes definition Fig.6 Human interface for interactive process planning express_entity manufacturing_feature its_id: public String its_material: public workpiece its_operations: public machining_operation[] two5D_manufacturing_feature feature_placement: public axis2_placement_3d depth: public elementary_surface machining_feature pocket its_boss: public boss[] slope: Double bottom_condition: public pocket_bottom_condition planar_radius: public toleranced_length_measure orthogonal_radius: public toleranced_length_measure closed_pocket feature_boundary: public closed_profile Class inheritance Attributes: data type Base class with attributes inherited directly from Object.
Summary This paper presented a framework for STEP-compliant CNC (ST-CNC), together with a description of key issues and solutions for implementation.
Online since: December 2013
Authors: De Xin Ma, Jian Ma, Peng Min Xu, Ying Pang
The Application Research Progress of Wireless Sensor Networks
Dexin Ma1,2,a, Jian Ma1, Pengmin Xu3* and Ying Pang2
1State Key Lab of Networking & Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
2Communication College, Qingdao Agricultural University, Qingdao 266109, China
3Network Management Center, Qingdao Agricultural University, Qingdao 266109, China
aemail: madexin@gmail.com
Keywords: Wireless sensor networks; Sensor; Application research.
As wireless sensor network has the characteristic of low cost, rapid deployment, intensive distribution and high fault-tolerant, etc., that makes it very suitable for application in military conditions, such as reconnaissance enemy condition, invasion detection, monitoring enemy’s army deployment, material transformation and the determination of biological attacks, etc.
World Scientific and Engineering Academy and Society,2008,7(12):1172-1181
As wireless sensor network has the characteristic of low cost, rapid deployment, intensive distribution and high fault-tolerant, etc., that makes it very suitable for application in military conditions, such as reconnaissance enemy condition, invasion detection, monitoring enemy’s army deployment, material transformation and the determination of biological attacks, etc.
World Scientific and Engineering Academy and Society,2008,7(12):1172-1181
Online since: August 2014
Authors: Qiu Yue Cui, Yu Zhen Ma, Xue Ren Dong, Long Li
Research on the Application of Activity-based Costing Based on the Concept of the new Accounting Standards
Qiuyue Cui1, a, Xueren Dong1,b, Yuzhen Ma1,c and Long Li1,d
1 School of Mechanical Engineering, University of Jinan, Jinan, Shandong 250000, China
acuiqiuyuewd@163.com, bost_dongxr@ujn.edu.cn, cme_mayz@ ujn.edu.cn , d2217216693@ qq.cpm
Keywords: Activity-based Costing, the new accounting standards, application
Abstract.
It is a great burden for the enterprises that intend to apply Activity-based Costing because of a large amount of manpower, material resources, and financial resources, and it affected the popularization and application of Activity-based Costing.
The implementation of activity-based cost management is the breakthrough of traditional cost concept, and the key is not to establish a unified accounting system to replace the original calculation system but to establish the activity-based cost management concept.
It is a great burden for the enterprises that intend to apply Activity-based Costing because of a large amount of manpower, material resources, and financial resources, and it affected the popularization and application of Activity-based Costing.
The implementation of activity-based cost management is the breakthrough of traditional cost concept, and the key is not to establish a unified accounting system to replace the original calculation system but to establish the activity-based cost management concept.