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The Combined Solar with a Dual Heat Source Heat Pump Applied in a Greenhouse Heating System——an Operation Optimization of Water Source Heat Pump Xianpeng Sun 1a, Zhirong Zou 1b, Yue Zhang 2c 1 College of mechanical and electronic engineering of North West Agriculture and Forestry University, Yang Ling in Shaan Xi, 712100, China 2 Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi'an Jiaotong University, Xi’an in Shaan Xi, 710049, China aSunxianpeng@nwsuaf.edu.cn,bZouzhirong2005@163.com,czhangyue@mail.xjtu.edu.cn, Key words: Finite-time Thermodynamics, Greenhouse Heating System, Water Source Heat Pump, COP Abstract: Based on the finite-time thermodynamic theory, an operation optimization, of water source heat pump in the combined solar with a dual heat source heat pump which is applied in a greenhouse heating system, is made.
The data of outdoor temperature Ta can be the measured data or meteorological data of typical years and we can also use first order harmonic to simulate the change of ambient temperature in engineering: a period of change of ambient temperature is 24 hours and the lowest temperature Tmin appears at 3 o’clock in the morning while the highest temperature Tmax appears at 15 o’clock in the afternoon.
The greenhouse is different from general civil buildings.
[5] Lilong Chai, Chengwei Ma, Ji-Qin Ni, Performance evaluation of ground source heat pump system for greenhouse heating in northern China, Biosystems Engineering 111 (2012) 107–117
Economical analysis of heat pump applied in heating systems of vegetable greenhouses[J].Journal of engineering thermophysics, 2002(23):17-19

Research on the environmental effects of GB-SAR for dam monitoring Cheng Xing1, 2, a, Jingjing Huang1, b, Xianquan Han3, 4, c 1 School of Geodesy and Geomatics, Wuhan University, Wuhan, China 2 Key Laboratory of Precise Engineering and Industry Surveying, State Bureau of Surveying and Mapping, Wuhan, China 3 State Key Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China; 4 Yangtze River Scientific Research Inst., Wuhan, 430010, China; a c.xing.whu@gmail.com, b jennywong.whu@gmail.com, c mydabao112@hotmail.com Keywords: Ground-Based SAR; deformation monitoring; interferometry; environment correction Abstract.
Engineering Geology. vol. 116, pp. 218-235, November, 2010
“An interferometric radar for non-contact measurement of deflections on civil engineering structures: Laboratory and full-scale tests,” Structure and Infrastructure Engineering, vol. 6, pp. 521-534, 2010

Experimental Study on Shear Strength of Expansive Soil Improved by Lime - Weathered Sand Mengyun Huanga, Junlai Xiongb, Jibing Tangc, and Chi Longd College of Civil Engineering and architecture, China Three Gorges University, P.R.China a15090915738@163.com(corresponding author) b162293826@qq.com c253426027@qq.com d271472407@qq.com Keywords: Lime, Weathered Sand, Expensive Soil, Shear Strength Abstract.
“Study on construction techniques and characteristics of lime－stabilized expansive soil,” [J] Chinese Journal of Rock Mechanics and Engineering, 2006
Li, “lime modified engineering properties of expansive soil,” [J].
Journal of Engineering Geology, 2009
Journal of Geo technical and Geo-environmental Engineering, ASCE, 2001.

School of Materials of Southeast University/ Key Lab for Civil Engineering Materials, Southeast University.
Jiangsu Dongda Engineering Detection Technology Co.
The engineering circle often make a judgment as to the cause of concrete cracks by analyzing materials, observing the traits of cracks and making a chemical analysis, etc.
The engineering circle extensively makes a lasting observation to judge in what period the crack lies.
Shinozuka Probabilistic model for steel corrosion in reinforced concrete structures of large dimensions considering crack effects[J] Engineering Structures 57 (2013) 306-326

Kassim4,d and Rafidah Binti Hamdan5,e 1,2,3,4,5Faculty of Civil and Environmental Engineering, Universiti Tun Hussien Onn Malaysia, Locked Bag 101, 86400 Parit Raja, Batu Pahat.Johor, Malaysia ayadembo02@yahoo.com, bmaya@uthm.edu.my, cAsmah_lhalim@yahoo.com, damir@uthm.edu.my, erafidahh@uthm.edu.my Keywords: Greywater, Kitchen, Constructed Wetland, Water Pollution, Lepironia Articulata Abstract.
However, CW are engineered system designed to simulate natural wetland and utilize same biological processes found in natural wetland ecosystems [8, 9].
Vymazal, The use constructed wetlands with horizontal sub-surface flow for various types of wastewater, Ecological Engineering, 35(1) (2009) 1-17
Baker, Removal of chemical and microbiological contaminants from domestic greywater using a recycled vertical flow bioreactor (RVFB), Ecological engineering, 31(2), (2007) 107-114
Khor, Effects of storage duration and temperature of Moringa oleifera stock solution on its performance in coagulation, International Journal of Engineering and Technology, 1(1), (2008) 46–151

As well developed engineering technique based on spatial stability.
Journal of Applied Engineering Science, Vol. 12 (1) (2014), pp 1-10 [25] V.
Journal of Applied Engineering Science, Vol. 12 (2) (2014), pp 121-128 [26] E.
Bulletin of Civil Engineers. 5 (40) (2013), pp. 26-31 [34] D.
Journal of Applied Engineering Science, Vol. 12 (1), (2014), pp 37-44

Dynamic Axial Compression of Square CFRP/Aluminium Tubes Rafea Dakhil Hussein1,a, Dong Ruan2,b*, Guoxing Lu2,c, Jeong Whan Yoon3,4,d and Zhanyuan Gao5,f 1College of Engineering, Al-Muthanna University, Iraq 2Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia 3Faculty of Science Engineering and Built Environment, Deakin University, Geelong, VIC 3220, Australia 4Department of Mechanical Engineering, KAIST, Daejeon 305-701, Korea 5Tianjin Key Laboratory of Civil Structure Protection and Reinforcement, Tianjin Chengjian University, China arafaa.dakhil@yahoo.com, bdruan@swin.edu.au, cglu@swin.edu.au, dj.yoon@deakin.edu.au, fhaifenglingyong@sina.com Keywords: CRFP/aluminium tubes; Axial compression; Impact tests; Energy absorption; Deformation.
Belingardi, Experimental and numerical investigations of the impact behaviour of composite frontal crash structures, Composites Part B: Engineering 79 (2015) 20-27

Therefore it is necessary to analyze and evaluate the stability of subgrade according to the results of geological exploration and scene excavation situation, and steady unstable and less stable subgrade, so to ensure the security and stability of highway engineering structures after construction.
(1)Detailed Investigate and Estimate [1] Detailed investigation and diseases risk assessment of engineering geology, hydrogeology, in volcano karst landform, geological features, rock melting degree of development, morphology, size, development regularity and surface, groundwater movement law, are correct and reasonable solutions of various negative problems prevention.
Table 2 get some treatment scales combines with engineering practices and with reference to the treatment measures of limestone karst.
(2) Due to the complicated stratum structure in volcanic crater karst region, research put forward the subgrade disease treatment methods and construction requirements combined with the engineering practice of embankment building in this area.
Central South University, Building and Civil Engineering, 2012.

A Comparison of the Fracture Behaviour of Various Concrete Grades under Mixed Mode I/II Loading Petr Miarka1,a, Robin Janssen2,b, Stanislav Seitl1,3,c and Wouter De Corte2,d 1Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, Brno 602 00, Czech Republic 2Ghent University, Faculty of Engineering and Architecture, Department of Structural Engineering, Valentin Vaerwyckweg 1, 9000 Gent, Belgium 3Institute of Physics of Materials, Academy of Science of the Czech Republic, Brno, Czech Republic apetr.miarka@vut.cz, brobin.janssen@ugent.be, cseitl.s@fce.vutbr.cz, dwouter.decorte@ugent.be Keywords: High performance concrete, High strength concrete, Fracture mechanics, Mixed mode I/II, MTS, GMTS.
Ravi-Chandar, Evaluation of elastic T-stress by the stress difference method, Engineering Fracture Mechanics, 64 (1999) 589–605
Sih, On the Crack Extension in Plates Under Plane Loading and Transverse Shear, Journal of Basic Engineering, Vol. 85 (1963) 519–525

The National Annex may only contain information on those parameters which are left open in the Eurocode for national choice, known as Nationally Determined Parameters, for the design of buildings and civil engineering works to be constructed in the country concerned.
[17] Clifford Matthews BSc, CEng, MBA, FIMechE: Engineers’ Guide to Pressure Equipment.
Professional Engineering Publishing Limited, London and Bury St Edmunds, UK, 2001
McGraw-Hill New York, 2010. www.access engineering
www.access engineering