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Online since: January 2014
Authors: Mao Wen Wang, Bao Ping Guo
A synthesis algorithm of beam-forming for antenna pattern
WANG Mao Wen 1, a, GUO Bao Ping 2,b
1 School of information engineering, shenzhen university, Shenzhen 518060
2 Optoelectronic Devices and Systems (Ministry of Education, Guangdong Province) Key Laboratory, Shenzhen 518060
awangfan198@qq.com, bbpguo@szu.edu.cn
Keywords: pattern synthesis, upper side lobe suppression, lower null-fill, Newton iteration method
Abstract.
The formula suitable for engineering practice is deduced through deforming activation value in formula of power pattern.
In the civil mobile communication system, the sky or other housing estates nearby is above the base station antenna.
In respect that there’s no point in excessive pursuit of the accuracy of amplitude and phase weight in engineering, the numbers are properly adjusted to integers.
The upper side lobes suppression and lower null-fills are realized in this comprehensive method which is suitable for engineering application.
The formula suitable for engineering practice is deduced through deforming activation value in formula of power pattern.
In the civil mobile communication system, the sky or other housing estates nearby is above the base station antenna.
In respect that there’s no point in excessive pursuit of the accuracy of amplitude and phase weight in engineering, the numbers are properly adjusted to integers.
The upper side lobes suppression and lower null-fills are realized in this comprehensive method which is suitable for engineering application.
Online since: November 2012
Authors: Qi Xia Liu, Liang Fan
The Records of Slope Reinforcement Engineering in a Loess City
Qi Xia Liu 1,2,a, Liang Fan 1,2,b
1School of Civil Engineering and Architecture, Wuhan University of Technology
Hubei Wuhan China,
2Civil Engineering and Architecture College, Henan University of Technology
Henna Zhengzhou China
aliuqixia65@163.com, bfliangxx@126.com
Keywords: Loess; Slope; Reinforcement
Abstract.
The Midwest cities large engineering construction have mushroomed, these engineering investment big, affecting wide, in its construction or after completion of the construction process, form many large scale ,project more, factors complex, geological environment variable, saftey and use requirement different loess slope engineering.
Human engineering, economic activities, including irrigation, and road construction, building materials digging and living and filling with soil, spoil, building loads and so on.
Project Examples Engineering geological conditions of the project area.
Soil Mechanics in Engineering Practice.
The Midwest cities large engineering construction have mushroomed, these engineering investment big, affecting wide, in its construction or after completion of the construction process, form many large scale ,project more, factors complex, geological environment variable, saftey and use requirement different loess slope engineering.
Human engineering, economic activities, including irrigation, and road construction, building materials digging and living and filling with soil, spoil, building loads and so on.
Project Examples Engineering geological conditions of the project area.
Soil Mechanics in Engineering Practice.
Online since: November 2013
Authors: Jian Yi Yuan, Chun Feng Wang, Jian Hua Cheng, Ding Bang Zhang, Zhen Hua Wu
Analysis of Heat Conduction Mechanism on Tympanites Roadbed
Jian-yi YUAN1, a, Jian-hua CHENG1, b, Chun-feng WANG 2,c, Ding-bang ZHANG1,d,, and Zhen-hua WU1,e
1Institute of Civil Engineering, Hubei Polytechnic University, Huangshi Hubei 435003, China
2Huangshi Transportation Bureau, Huangshi Hubei 435003,China
ajian_yuan8888@sohu.com, byummyyi@163.com, c294813057@qq.com, dMarx_backharm@263.net, e wzh47261571@163.com
Keywords: road engineering; roadbed tympanites; physical model; heat conduction; entropy; radiant energy.
SHI: submitted to Journal of Engineering Geology(2005) [7] H.
SHI: submitted to Journal of Engineering Geology(2005) [7] H.
Online since: January 2013
Authors: Katarína Minarovičová, Dušan Dlhý
Dušan Dlhý, PhD.1,b
1Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Department of Building Structures, Slovakia
akatarina.minarovicova@stuba.sk, bdusan.dlhy@stuba.sk
Keywords: entrance, apartment buildings, residential buildings, entrance door, renovation, refurbishment
Abstract.
This article analyses the problems connected with renovation of building entrances and summarizes information about the current efforts in engineering and architectural praxis.
Surface roughness must be up to 20 mm that is often neglected mainly during renovation works stage as it´s seen in the current efforts in engineering and architectural praxis.
Engineering praxis in Slovakia should take into account mutual influence on the architectural and structural parameters given in Fig.4.
Selection and/or peer-review under responsibility of APAAS Procedia Engineering 21 (2011) p. 795 – 804
This article analyses the problems connected with renovation of building entrances and summarizes information about the current efforts in engineering and architectural praxis.
Surface roughness must be up to 20 mm that is often neglected mainly during renovation works stage as it´s seen in the current efforts in engineering and architectural praxis.
Engineering praxis in Slovakia should take into account mutual influence on the architectural and structural parameters given in Fig.4.
Selection and/or peer-review under responsibility of APAAS Procedia Engineering 21 (2011) p. 795 – 804
A New Type of Coupled Shear Wall Structure System with Buckling-Restrained Brace Steel Coupling Beam
Online since: September 2011
Authors: Yong Sha, Wei Dong Sun
The structure vibration control idea is one of the most frontal hot spots and development directions in the seismic engineering and structure engineering fields in recent years [8, 16, 17].
[4] Mohammad Hassan,Sherif EI-Tawil ,Joumal of Structure Engineering, ASCE. 130(2004) 271-284
[12] Qiang Xie, Liang Zhao, Earthquake Engineering and Engineering Vibration. 26(2006)100-103 (in Chinese)
[13] Yan Li, Bin Wu, Qianying Wang, Jinping Ou, China Civil Engineering Journal.39(2006)9-14 (in Chinese)
[16] ASCE7-05.Minimum Design Loads for buildings and other Structures .American Society Civil Engineers.( 2006) [17] Kim,J.K.and Choi,H.H., Journal of Structural Engineering. 132(2006)873-883
[4] Mohammad Hassan,Sherif EI-Tawil ,Joumal of Structure Engineering, ASCE. 130(2004) 271-284
[12] Qiang Xie, Liang Zhao, Earthquake Engineering and Engineering Vibration. 26(2006)100-103 (in Chinese)
[13] Yan Li, Bin Wu, Qianying Wang, Jinping Ou, China Civil Engineering Journal.39(2006)9-14 (in Chinese)
[16] ASCE7-05.Minimum Design Loads for buildings and other Structures .American Society Civil Engineers.( 2006) [17] Kim,J.K.and Choi,H.H., Journal of Structural Engineering. 132(2006)873-883
Online since: December 2014
Authors: Grzegorz Królczyk
Surface Morphology of Duplex Stainless Steel (DSS) in Dry Turning Process
KROLCZYK Grzegorz M.1,a
1 Faculty of Production Engineering and Logistics, Opole University of Technology
76 Proszkowska Street, 45-758 Opole, Poland
ag.krolczyk@po.opole.pl
Keywords: duplex stainless steel, coated inserts, machining, surface integrity, surface morphology
Abstract.
The paper presents the contribution in engineering of surfaces particularly in surface morphology of Stainless Steels.
Legutko, Determination of tool life and research wear during duplex stainless steel turning, Archives of Civil and Mechanical Engineering. (2014) http://dx.doi.org/10.1016/j.acme.2014.05.001
Legutko, Microhardness and Surface Integrity in Turning Process of Duplex Stainless Steel (DSS) for Different Cutting Conditions, Journal of Materials Engineering and Performance. 23, 3 (2014) 859–866
The paper presents the contribution in engineering of surfaces particularly in surface morphology of Stainless Steels.
Legutko, Determination of tool life and research wear during duplex stainless steel turning, Archives of Civil and Mechanical Engineering. (2014) http://dx.doi.org/10.1016/j.acme.2014.05.001
Legutko, Microhardness and Surface Integrity in Turning Process of Duplex Stainless Steel (DSS) for Different Cutting Conditions, Journal of Materials Engineering and Performance. 23, 3 (2014) 859–866
Experimental Study on Mechanical Properties of PVA Fiber Reinforced Tailings Cementitious Composites
Online since: November 2012
Authors: Wen Bo Bao, Cheng Hong Wang, Zhi Qiang Huang, Shao Feng Zhang
Experimental study on mechanical properties of
PVA fiber reinforced tailings cementitious composites
Wenbo Bao1,a, Chenghong Wang1,b, Shaofeng Zhang1,c and Zhiqiang Huang1,d
1School of Architecture and Civil Engireering, Shenyang University of Technology, Shenyang 110870, China
awenbobao@163.com, bwangch@sut.edu.cn, c380952896@qq.com, dhuangzq@sut.edu.cn
Keywords: Cementitious composite, Iron ore tailings, PVA, Mechanical properties.
A type of ecological engineered cementitious composites, which use iron ore tailings to replace fine grinding quartz sand in PVA fiber reinforced cementitious composites, was developed.
Introduction Engineered cementitious composite (ECC) is a type of ultra-high toughness cementitious composites material, which has been researched and developed by LI Victor C at University of Michigan in the early 1990s.
ECC is a fiber reinforced cementitious composites with specially selected short random fibers designed on the basis of micromechanics and engineered [1, 2].
Due to the use of abandoned mine tailings, this material is a type of ecological engineered cementitious composites and has the significance of environmental protection.
A type of ecological engineered cementitious composites, which use iron ore tailings to replace fine grinding quartz sand in PVA fiber reinforced cementitious composites, was developed.
Introduction Engineered cementitious composite (ECC) is a type of ultra-high toughness cementitious composites material, which has been researched and developed by LI Victor C at University of Michigan in the early 1990s.
ECC is a fiber reinforced cementitious composites with specially selected short random fibers designed on the basis of micromechanics and engineered [1, 2].
Due to the use of abandoned mine tailings, this material is a type of ecological engineered cementitious composites and has the significance of environmental protection.
Online since: June 2011
Authors: Long Guo, Xiu Feng Zhang, Jian Feng Feng
Research on Ecological Impacts Prediction Simulation
System of Coastal Waters
Long Guo, JianFeng Feng and XiuFeng Zhang
Department of Civil Engineering, Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin Institute of Urban Construction, Tianjin 300384, China
glace_029@126.com
Key words: Ecological Impacts, Forecast Simulation, Coastal Waters.
Examples of typical coastal engineering, the main port construction effect to coastal waters ecosystem is predicted.
Examples of typical coastal engineering, the main port construction effect to coastal waters ecosystem is predicted.
Examples of typical coastal engineering, the main port construction effect to coastal waters ecosystem is predicted.
Examples of typical coastal engineering, the main port construction effect to coastal waters ecosystem is predicted.
Online since: March 2015
Authors: Jian Zhang, Hua Liu, Hui Chen, Feng Wang
The Kalman filtering processes of material parameters are quite dependent on the determination of initial filtering values, which indicates that the initial filtering values should be set with practical engineering experiences instead of arbitrary selection.
Introduction With the development of civil engineering and bridge engineering and with the advance of construction technology, the reinforced concrete single box beam is used more and more widely.
In fact, parameter estimation theory has some applications in practical engineering.
First order approximation equations of Kalman filtering processor The general model of filtering system has important theoretic value and it is pointed outthat there are many difficulties existing in applying Eq.(1) directly to practical engineering.
In practical engineering, there is unnecessary to suppose such a small criterion.
Introduction With the development of civil engineering and bridge engineering and with the advance of construction technology, the reinforced concrete single box beam is used more and more widely.
In fact, parameter estimation theory has some applications in practical engineering.
First order approximation equations of Kalman filtering processor The general model of filtering system has important theoretic value and it is pointed outthat there are many difficulties existing in applying Eq.(1) directly to practical engineering.
In practical engineering, there is unnecessary to suppose such a small criterion.
Online since: February 2018
Authors: Federico M. Mazzolani, Antonio Formisano, Hadi Monsef Ahmadi
Kulak, Experimental study of steel plate shear walls, Structural Engineering Report.
No. 114, Department of Civil Engineering, University of Alberta, Alberta, Canada, 1983
Journal of Progress in Structural Engineering and Materials 7 (3) (2005) 115-135
Mazzolani, Experimental and numerical researches on aluminium alloy systems for structural applications in civil engineering fields, Key Engineering Materials 710 (2016) 256-261
Lombardi, Perforated shear panels for seismic rehabilitation of existing reinforced concrete buildings, Civil-Comp Proceedings, 108, 2015
No. 114, Department of Civil Engineering, University of Alberta, Alberta, Canada, 1983
Journal of Progress in Structural Engineering and Materials 7 (3) (2005) 115-135
Mazzolani, Experimental and numerical researches on aluminium alloy systems for structural applications in civil engineering fields, Key Engineering Materials 710 (2016) 256-261
Lombardi, Perforated shear panels for seismic rehabilitation of existing reinforced concrete buildings, Civil-Comp Proceedings, 108, 2015