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Research on Unmanned Helicopter Communication System Based on μC/OS-Ⅱ Operating System He Meng-lin 1, a, Luo Ning 1, a, Andrew Cudzo Amenuvor2, b 1Institute of Electrical Engineering, Guizhou University, Guizhou 550025, China 2College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, Ghana aflydofhml@gmail.com , bac.amenuvor@gmail.com Keywords: μC/OS-Ⅱ, acquisition system, Ground Monitoring, real-time Abstract.
Recent years, Unmanned Aerial Vehicle (UAV) has gained great attention and importance both in civil and military applications all over the world.
Formal Modeling and Verification of Operational Flight Program in a Small-Scale Unmanned Helicopter.Joumal of Aerospace Engineering. 2012: 530-540 [7] Jean J Labrisse.

Clay Building Materials and Their Properties ŽABIČKOVÁ Ivana1, a, OTCOVSKÁ Tereza2,b * and PADEVĚT Pavel2,c 1Brno University of Technology, Faculty of Architecture, Poříčí 273/5, 639 00 Brno, Czech Republic 2CTU in Prague, Faculty of Civil Engineering, Thakurova 7, 166 29 Prague 6, Czech Republic aZabickova@fa.vutbr.cz, btereza.otcovska@fsv.cvut.cz, cpavel.padevet@fsv.cvut.cz Keywords: Clay, Clay brick, Clay mortar, Tensile bending strength, Compressive strength.
It was used for the traditional engineering works for more some 9 thousands years.
Acknowledgement The financial support of this experiment by the Faculty of Civil Engineering, Czech Technical University in Prague (SGS project No.

Hamid Nikraz 2, b 1PhD candidate, Department of Civil Engineering, Curtin University of Technology, Perth, Australia; Tel: +61-413165961; Fax: +61 8 9266 2681 2Prof.
Hamid Nikraz, Head of the Department of Civil Engineering, Curtin University of Technology, Perth, Australia; Tel: +61 8 9266 7573; Fax: +61 8 9266 2681 a Email: amin.chegenizadeh@postgrad.curtin.edu.au, b Email: H.Nikraz@curtin.edu.au Keywords: Reinforced soil, Unconfined, Strength, Fibre.
The important part of this study is how to manage available material in environment to be in serve of civil engineers, as can be found in this research the used fibre is palm strand which is natural and would improve life cycle as well as engineering project.
From the Figure, it is clear that proper compaction plays significant rule in stability of civil projects.
Ng. & Tang, C. (2006) Effect of polypropylene fibre and lime admixture on engineering properties of clayey soil, Engineering Geology 87, 230– 240

Enhancing Hempcrete and Hemp Concrete Properties through Surface Treatment and Additives Komchai Thaiying1,a, Sudniran Phetcharat2,b,, Roongarun Buntan3,c, Praphaphon Silawong4,d, , Haruetai Maskong5,e and Theerawat Sinsiri1,f,* 1School of Civil Engineering, Institute of Engineering, Suranaree University of Technology, Muang, Nakhon Ratchasima, Thailand 2Faculty of Engineering, Srinakharinwirot University, Ongkharak, Nakhon Nayok, Thailand 3Independent Researcher, 337 Village No.15, Takhian, Dan Khun Thot, Nakhon Ratchasima, Thailand 4Department of Metallurgical Engineering, Faculty of Engineering, Rajamangala University of Technology Isan Khonkaen Campus, Thailand 5Faculty of Engineering and Technology, Rajamangala University of technology Isan, Thailand apthaiying@gmail.com, bsudniran@g.swu.ac.th, c roongarun@gmail.com, dpraphaphon.si@rmuti.ac.th, eharuetai.ma@rmuti.ac.th, fsinsiri@g.sut.ac.th *Corresponding author Keywords: Hemp Concrete, Hempcrete, Surface Treatment,
Sieve size (mm.) % passing by weight Engineering Property Test Results Hemp Soil 9.525 (No 3/8) 100.00 100.00 1.
Acknowledgements I would like to thank the Thailand Science Research and Innovation office (TSRI) for financial support (TRF Research Career Development Grant, RSA6180087), the School of Civil Engineering, Suranaree University of Technology, Thailand, for providing facilities and equipment for my research and the Highland Research and Development Institute (Public Organization; HRDI) of Thailand for the facilitation of hemp shiv supply.
The 27th National Convention on Civil Engineering, Chiang Rai, Thaland (2022) [2] S.
School of Civil Engineering, Institute of Engineering, Suranaree University of Technology. (2017)

Dynamic Elasto-Plastic Analysis on the Steel Spatial Arch Truss with 90 m Span and 0.3 Rise-Span Ratio Haiwang LI1, a, Lu JIANG 1,b, Jing LIU 1,c 1 Department of Civil Engineering, Taiyuan University of Technology 79, Yingzexi Street, Taiyuan, 030024, China; alhwtut@126.com, bjianglu33497@126.com, ccimeng2005@163.com Keywords: Earthquake action, Elasto-plastic dynamic response, Plastic hinge, Steel arch truss Abstract.
Introduction Steel tube arch trusses are widely applied in practical engineering, and the large span buildings with them are sometimes required to be used as earthquake refugee shelters [1].
A new function for large-span civil buildings Proceedings of the International Association for Shell and Spatial Structures (IASS) Symposium 2009, 28 September – 2 October 2009, Universidad Politecnica de Valencia, Spain:358-359
[2] Civil King Software Technology Co., Ltd.

Geotechnical earthquake engineering.
Engineering Structures, 2008, 30(4): 1048-1057
National Conference on Earthquake Engineering, San.
Canadian Joural of Civil Engineering, 2011, 38(1): 79-88
Canadian Joural of Civil Engineering, 2011, 38(1): 38(1), 89-99

A Study on an Inverse Estimation Method for Solving Soil-Structure Interaction System Ming-Hui Lee Department of Civil Engineering, Chinese Military Academy, Fengshan, Kaohsiung, Taiwan, R.O.C.
How design earthquake motions should be defined has been a main concern if civil engineers since the recently several significant earthquakes, for example, the Yushu earthquake in China (2010), the Haiti earthquake (2010), the Southern Sumatra earthquake in Indonesia (2009).
The estimation of earthquake motions at the site of a structure is the most important phase for civil structure seismic design.
Inverse Problem Engineering Vol. 5 (1997), p. 309-333
Computer Methods in Applied Mechanics and Engineering.

3D SEISMIC DYNAMICAL RESPONSE TIME INTERVAL ANALYSIS OF DIFFERENT SEGMENT LENGTHS OF WHARFS Caihua Shen1,a, Xiaofeng Chen 2,b and Xingwei Niu 3,c 1Lecture, Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, College of Civil and Transportation Engineering, Hohai University, Xikang Road 1#,Nanjin,Jiangsu P.R.
China 210098. 2 Senior Engineer, Traffic Planning and Design Institute, Ministry of Water Design at Huancheng West Road 89#, Hangzhou, Zhejiang P.R China 310006. 3Student, College of Civil and Transportation Engineering, Hohai University, Xikang Road 1#, Nanjing,Jiangsu P.R.
Earthquake engineering and engineering vibration, 2001, 21(l):15-23
Seismic response of structure to the multi-dimensinal components of ground motion and torsional seismic response of building[J].Journal of Harbin University of Civil Engineering and Architecture, 1986, 2(2):59-71
On superposition of seismic response of a structure to multi-dimensional ground motions, Journal of Harbin University of Civil Engineering and Architecture, 1987,(2):1-9

A Comparison between Effects of Linear and Non-linear Mechanistic Behaviour of Materials on the Layered Flexible Pavement Response Behzad Ghadimi1,a, Hamid Nikraz2,b, Colin Leek3,c and Ainalem Nega4,d 1 PhD Candidate, Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia; Tel: (+61) 8 9266-2674; Fax: (+61) 8 9266-2681 2 Professor, Head of Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia; Tel: (+61) 8 9266-7573; Fax: (+61) 8 9266-2681 3 Adjunct Professor , Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia; Tel: (+61) 8 9266-4761; Fax: (+61) 8 9266-2681 4 PhD Candidate, Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia; Tel: (+61) 8 9266-2674; Fax: (+61) 8 9266-2681 aBehzad.Ghadimi@postgrad.curtin.edu.au, bH.Nikraz@curtin.edu.au, cC.Leek@curtin.edu.au dAinalem.Nega@curtin.edu.au Keywords: Numerical modeling
Transactions of the Institution of Engineers, Australia.
Civil engineering, 1996. 38(2-4): p. 89-93
Finite element analysis of nonlinear soil media. in Proceedings,Symposium on Application of Finite Element Methods in Civil Engineering, . 1969.
Transportation Engineering Journal, 1979. 105(1): p. 71-89.

The finite element method (FEM) is one of most active numerical method in engineering practice.
Thesis, Civil Engineering Department, University of Tikrit, Iraq, (2010)
Nashat, Engineering Characteristics of Some Gypseous Soils in Iraq, Ph.D.
Thesis, Civil Engineering Dept, University of Bagdad, Iraq, (1990)
Thesis, Civil Engineering Department, University of Tikrit, Iraq, (2009)