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Online since: September 2013
Authors: Xiao Gang Liu, Xin Le Wang, Qi Liang Yang, Yuan Zhong
Effect of Limited Irrigation and Nitrogen on Ecological Index and Water Use of Arabica Coffee
Xiaogang Liu1, a, Yuan Zhong1, b, Xinle Wang2,c and Qiliang Yang1
1 Faculty of Modern Agricultural Engineering,Kunming University of Science and Technology,Kunming, 650500, China
2 Faculty of Foreign Language and Culture,Kunming University of Science and Technology,Kunming, 650500, China
aliuxiaogang666@qq.com, bchans50@163.com, cnysywxl@126.com
Keywords: Limited irrigation; Arabica coffee; Ecological index; Dry mass accumulation; Water use efficiency
Abstract.
Materials and methods Test had been finished in the intelligent greenhouse in faculty of modern agriculture engineering, Kunming University of Science and Technology from April to Nov. 2012.
Acknowledgment We are grateful to the research grants from the National Natural Science Foundation of China (50879073, 51109102 and 51009073), the Natural Science Foundation of Yunnan Province (2010ZC043, 2010ZC042), Key Project of Yunnan Education Department (2001Z035) and Public-benefit Project of Ministry of Water Resources(201101042).
Materials and methods Test had been finished in the intelligent greenhouse in faculty of modern agriculture engineering, Kunming University of Science and Technology from April to Nov. 2012.
Acknowledgment We are grateful to the research grants from the National Natural Science Foundation of China (50879073, 51109102 and 51009073), the Natural Science Foundation of Yunnan Province (2010ZC043, 2010ZC042), Key Project of Yunnan Education Department (2001Z035) and Public-benefit Project of Ministry of Water Resources(201101042).
Online since: December 2013
Authors: Zhen Zhou, Wen Yan Wu, Ke Jia Liu, Xiao Hua Li, You Cai Zhao, Luo Chun Wang
Study on the photo-electro-catalytic oxidation of methane
Wenyan Wu1,a, Luochun Wang1,b , Zhen Zhou1,c , Kejia Liu1,d , Xiaohua Li1,e and Youcai Zhao2,f
1 College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai
2 College of Environmental Science and Engineering, Tongji University, Shanghai
awwy_2007@yeah.net, bwangluochun@shiep.edu.cn, czhouzhen@shiep.edu.cn,
d liukejia6711271@163.com, elixiaohua0808@126.com, fzhaoyoucai@tongji.edu.cn
Keywords: photo-electro-catalytic; methane; kinetics
Abstract.
Because the nonpolar methane molecule was only weakly physisorbed on the surface of polar TiO2, K<<1, transformation of Eq. (2) (3) The methane oxidation rate is proportional to the methane concentration, and the oxidation rate of methane fit a first-order reaction (4) Since the methane initial concentrations and photocatalytic materials in the experiments were the same, the degradation rate of methane can also be expressed by apparent rate constant k (k =κK) (5) The methane concentration dependence on reaction time followed an exponential law
Acknowledgements This work was financially supported by Key Innovation Program of Shanghai Municipal Education Commission (12Z171) of China.
Because the nonpolar methane molecule was only weakly physisorbed on the surface of polar TiO2, K<<1, transformation of Eq. (2) (3) The methane oxidation rate is proportional to the methane concentration, and the oxidation rate of methane fit a first-order reaction (4) Since the methane initial concentrations and photocatalytic materials in the experiments were the same, the degradation rate of methane can also be expressed by apparent rate constant k (k =κK) (5) The methane concentration dependence on reaction time followed an exponential law
Acknowledgements This work was financially supported by Key Innovation Program of Shanghai Municipal Education Commission (12Z171) of China.
Online since: January 2012
Authors: Feng Wang, Xiao Feng Bian, Kao Zhong Zhao
Experimental Study on Concrete-Filled Glass Fiber Reinforced Gypsum Wall Panel Compression Members
Kaozhong Zhao1,2, a, Feng Wang1 and Xiaofeng Bian1
1College of Civil Engineering, Shandong Jianzhu University, Jinan250101, China
2Shandong Provincial Key Laboratory of Appraisal and Retrofitting in Building Structures, Jinan250101, China
aZKZ@sdjzu.edu.cn
Keywords: Concrete-filled glass fiber reinforced gypsum wall panel; Compression member; Bearing capacity; Failure mechanism; Experimental study
Abstract: The concrete-filled glass fiber reinforced gypsum wall panel is a kind of panel that the inside cavums of the glass fiber hollow gypsum panel are filled with concrete, which can be used as the bearing wall of a building.
The standard wall panel is 3m×12m, which can be cut according to the design in the engineering application as shown in the Figure 1.
The wall panel is typical green building material product with many features, such as deadweight light, good heat preservation, economy energy resources.
For the further popularization and application of the new wall material, the inside cavums can be filled with concrete to form concrete filled glass fiber reinforced gypsum wall panel.
The standard wall panel is 3m×12m, which can be cut according to the design in the engineering application as shown in the Figure 1.
The wall panel is typical green building material product with many features, such as deadweight light, good heat preservation, economy energy resources.
For the further popularization and application of the new wall material, the inside cavums can be filled with concrete to form concrete filled glass fiber reinforced gypsum wall panel.
Online since: December 2013
Authors: Ahmad Jais Alimin, Abdul Mutalib Leman, Amir Khalid, Bukhari Manshoor, Azmahani Sadikin, Norrizal Mustaffa, Hanis Zakaria
aamirk@uthm.edu.my, bhanis@uthm.edu.my
Key Words: Biodiesel, Straight Vegetable Oil, Fuel Properties, Water Content, Flash Point
Abstract
Biodiesel is an alternative fuel derived from varies sources of vegetable oils, animal fat, or waste frying oil to give the corresponding fatty acid methyl ester.
These properties test are based on the European Standard for Biodiesel (EN 14214) and American Society of Testing Materials (ASTM D6751), as shown in Table 1.
Manshoor, “Performance and Emissions Characteristics of Diesel Engine Fuelled by Biodiesel Derived from Palm Oil”, International Conference on Mechanical & Manufacturing Engineering (ICME2012), pp.1-5, 2012
[7] Amir Khalid, Tomoaki Yatsufusa, Takayuki Miyamoto, Jun Kawakami, Yoshiyuki Kidoguchi, Analysis of Relation between Mixture Formation during Ignition Delay Period and Burning Process in Diesel Combustion, Small Engine Technology Conference 2009 (SETC2009); Society of Automotive Engineering (SAE), SAE Technical Papers No. 2009-32-0018, 2009 [8] Prussi, M., Chiaramonti, D., Riccio, G., Martelli, F., & Pari, L. (2012).
These properties test are based on the European Standard for Biodiesel (EN 14214) and American Society of Testing Materials (ASTM D6751), as shown in Table 1.
Manshoor, “Performance and Emissions Characteristics of Diesel Engine Fuelled by Biodiesel Derived from Palm Oil”, International Conference on Mechanical & Manufacturing Engineering (ICME2012), pp.1-5, 2012
[7] Amir Khalid, Tomoaki Yatsufusa, Takayuki Miyamoto, Jun Kawakami, Yoshiyuki Kidoguchi, Analysis of Relation between Mixture Formation during Ignition Delay Period and Burning Process in Diesel Combustion, Small Engine Technology Conference 2009 (SETC2009); Society of Automotive Engineering (SAE), SAE Technical Papers No. 2009-32-0018, 2009 [8] Prussi, M., Chiaramonti, D., Riccio, G., Martelli, F., & Pari, L. (2012).
Online since: June 2013
Authors: Yuan Na Zhu, Ya Ming Chen, Shen Guang Ge, Jing Hua Yu
Determination of Trace Copper With Sulfophenylazo Rhodanine by Catalytic Dynamic Spectrofluorimetry
Yuanna Zhu1, a, Yaming Chen1,b, Shenguang Ge2,c and Jinghua Yu2,d*
1 School of Material Science and Engineering, University of Jinan, Jinan 250022, China
2 Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong (University of Jinan), School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
aemail: mse_zhuyn@ujn.edu.cn, bemail: mse_chenym@ujn.edu.cn,
cemail: chm_gesg@ujn.edu.cn, demail: chm_yujh@ujn.edu.cn, corresponding author
Keywords: Sulfophenylazo Rhodanine; Substituent groups; Catalytic Dynamic Spectrofluorimetry; Copper
Abstract.
Fig.2 Excitation spectra and emission spectra of system 1,1’:2.0×10-5 mol·L-1 M3ClRASP-buffer solution 2,2’:2.0×10-5 mol·L-1 M3ClRASP-buffer solution- 0.1 μg·mL-1 Cu2+ (1.0 mL) 3,3’:2.0×10-5 mol·L-1 M3ClRASP- 2.0×10-3 mol·L-1 KIO4- buffer solution 4,4’:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (0.7 mL) 5,5:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (0.9 mL) 6,6’:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (1.0 mL) Tab.1 Optimized conditions of every material Reagents pH V(Rhodanine, 2.0×10-5 mol·L-1, mL) V(Buffer solution, mL) V(Oxidation,2.0×10-3 mol·L-1, mL) M3ClRASP 5.0 1.0 2.2 1.0 3ClRASP 5.0 1.0 1.8 0.8 M3MRASP 5.0 1.0 2.2 1.0 3MRASP 5.0 0.8 2.0 0.9 Influence of temperature on reaction speed.
Fig.2 Excitation spectra and emission spectra of system 1,1’:2.0×10-5 mol·L-1 M3ClRASP-buffer solution 2,2’:2.0×10-5 mol·L-1 M3ClRASP-buffer solution- 0.1 μg·mL-1 Cu2+ (1.0 mL) 3,3’:2.0×10-5 mol·L-1 M3ClRASP- 2.0×10-3 mol·L-1 KIO4- buffer solution 4,4’:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (0.7 mL) 5,5:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (0.9 mL) 6,6’:2.0×10-5 mol·L-1M3ClRASP-2.0×10-3 mol·L-1KIO4-buffer solution-0.1 μg·mL-1Cu2+ (1.0 mL) Tab.1 Optimized conditions of every material Reagents pH V(Rhodanine, 2.0×10-5 mol·L-1, mL) V(Buffer solution, mL) V(Oxidation,2.0×10-3 mol·L-1, mL) M3ClRASP 5.0 1.0 2.2 1.0 3ClRASP 5.0 1.0 1.8 0.8 M3MRASP 5.0 1.0 2.2 1.0 3MRASP 5.0 0.8 2.0 0.9 Influence of temperature on reaction speed.
Online since: June 2019
Authors: Xin Yu Ye, Lin Sheng Wang, Qing Hua Zeng, Di Wu
Co-Precipitation Synthesis and Photoluminescence Properties of K2SiF6:Mn4+ Red Phosphor for White Light Emitting Diodes
Di Wu1,3,a, Xin-Yu Ye 1,2, Lin-Sheng Wang 1,3, Qing-Hua Zeng 1
1National Engineering Research Center for Ionic Rare Earth, Ganzhou 341000, China
2School of Metallurgy and Chemistry Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
3Ganzhou Nonferrous Metallurgy Research Institute, Ganzhou 341000, China
a511965684@qq.com
Keywords: Co-precipitation; K2SiF6:Mn4+; white LEDs; fluoride phosphor
Abstract: A novel red-emitting K2SiF6:Mn4+ phosphors with different Mn4+ doping mole fraction were synthesized by co-precipitation method.
Therefore, the development of a new type of high efficient red phosphor which is suitable for the blue excitation is the key to obtain high brightness, high luminous efficiency and high color rendering for white LEDs.
This may be due to concentration quenching, namely, a high doping concentration can reduce the Mn4+-Mn4+ distance to form a Mn4+ ion-pair in the host material and generate non-radiative transitions[24-25], resulting in reduced luminous intensity as excited electrons migrate from one Mn4+ to another Mn4+ ion-pair.
The monoexponential behaviour indicates that Mn4+ has effectively entered the host material and replaced only one type of lattice site of Si4+.
Therefore, the development of a new type of high efficient red phosphor which is suitable for the blue excitation is the key to obtain high brightness, high luminous efficiency and high color rendering for white LEDs.
This may be due to concentration quenching, namely, a high doping concentration can reduce the Mn4+-Mn4+ distance to form a Mn4+ ion-pair in the host material and generate non-radiative transitions[24-25], resulting in reduced luminous intensity as excited electrons migrate from one Mn4+ to another Mn4+ ion-pair.
The monoexponential behaviour indicates that Mn4+ has effectively entered the host material and replaced only one type of lattice site of Si4+.
Online since: February 2018
Authors: Farzin G. Golzar, Geoffrey W. Rodgers, J. Geoffrey Chase
Mander, "Damage avoidance design for buildings," KSCE Journal of Civil Engineering, vol. 18, pp. 541-548, Mar 2014
McNamara, "Energy dissipation systems for seismic applications: Current practice and recent developments," Journal of Structural Engineering, vol. 134, pp. 3-21, 2008
Erasmus, "Ring springs on holding-down bolts for seismic energy dissipation," Transactions of the Institution of Professional Engineers New Zealand: Civil Engineering Section, vol. 15, pp. 41-47, 1988
Clifton, "Low damage braces using Asymmetrical Friction Connections (AFC)," in New Zealand Society for Earthquake Engineering 2014 Annual Conference, 2014
Pampanin, "Reshaping structural hysteresis response with semi-active viscous damping," Bulletin of Earthquake Engineering, vol. 15, pp. 1789-1806, 2016.
McNamara, "Energy dissipation systems for seismic applications: Current practice and recent developments," Journal of Structural Engineering, vol. 134, pp. 3-21, 2008
Erasmus, "Ring springs on holding-down bolts for seismic energy dissipation," Transactions of the Institution of Professional Engineers New Zealand: Civil Engineering Section, vol. 15, pp. 41-47, 1988
Clifton, "Low damage braces using Asymmetrical Friction Connections (AFC)," in New Zealand Society for Earthquake Engineering 2014 Annual Conference, 2014
Pampanin, "Reshaping structural hysteresis response with semi-active viscous damping," Bulletin of Earthquake Engineering, vol. 15, pp. 1789-1806, 2016.
Online since: August 2017
Authors: Poojari Borappa Sampath Kumar, Bijjanal Jayanna Gireesha, Basavarajappa Mahanthesh, Rama Subba Reddy Gorla
Ahmed et al. [7] have reported exact solution of magnetohydrodynamics of Jeffrey materials over a stretched surface with convective heat transfer effect.
The problems of natural or forced or mixed convection flow of working fluids have numerous engineering applications.
The convective boundary conditions have many applications in industrial and engineering processes, including transpiration cooling process, material drying, etc.
Khan, Unsteady MHD Falkner-Skan flow of Casson nanofluid with generative/destructive chemical reaction.Chemical Engineering Science, 172 (2017) 694–706
Makinde, Magnetohydrodynamic stagnation point flow of a power-law nanofluid towards a convectively heated stretching sheet with slip, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 230(5) (2016) 345-354
The problems of natural or forced or mixed convection flow of working fluids have numerous engineering applications.
The convective boundary conditions have many applications in industrial and engineering processes, including transpiration cooling process, material drying, etc.
Khan, Unsteady MHD Falkner-Skan flow of Casson nanofluid with generative/destructive chemical reaction.Chemical Engineering Science, 172 (2017) 694–706
Makinde, Magnetohydrodynamic stagnation point flow of a power-law nanofluid towards a convectively heated stretching sheet with slip, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 230(5) (2016) 345-354
Online since: January 2012
Authors: Wei Wang, Yong Ming Xia
Research on Linear Motor for Linear Compressor
Wang Wei1 and Xia yong-ming2
1School of Electrical & Electronic Engineering, Shandong University of Technology, Zibo, China
2College of Mechanics and Automation, Zhejiang Sci-Tech University,
1wangwei_allen@163.com , 2Hangzhou, China
Key Word: linear compressor; moving-magnet; linear motor; finite element
Abstract: A novel moving-magnet linear motor was introduced which can produce high-frequency short stroke reciprocating motion, and it’s suitable to apply in linear compressor.
Along with the improvement of the permanent magnet material cost[5], the moving-magnet motor has been widely used.
Along with the improvement of the permanent magnet material cost[5], the moving-magnet motor has been widely used.
Online since: February 2011
Authors: Feng Yuan, Zhi Ping Wang
Applications of R parameter and programming jump instructions in SIEMENS system
Wang Zhipinga, Yuan Fengb
The Key Laboratory for digital design of Changzhou city, Changzhou Institute of Light Industry Technology, Changzhou 213164, P.R.
Using IF-conditional statement express conditional jump, its program segment format is: IF (condition) GOTOF (maker) skip forward or IF (condition) GOTOB (maker) skip back Applications Application parameters of the jump instruction and the preparation of R as shown in oval processing, Material is 45 steel, bar diameter is 40mm, shown as Fig.1.
[4] Xiao Q H: Manufacturing Technology & Machine Tool, Vol. 59 (2005), p. 125 [5] Zhou T, Chen B S, Zhao X Y: Equipment Manufacturing Technology, Vol. 16 (2006), p. 176 [6] Li L L: Tool Engineering, Vol. 44 (2010), p. 66 [7] Teng Z: Manufacturing Technology & Machine Tool, Vol.59 (2003), p. 60 [8] Zhang W M, Ru W, Yu M and et al: Modular Machine Tool & Automatic Manufacturing Technique, Vol. 50 (2007), p. 54
Using IF-conditional statement express conditional jump, its program segment format is: IF (condition) GOTOF (maker) skip forward or IF (condition) GOTOB (maker) skip back Applications Application parameters of the jump instruction and the preparation of R as shown in oval processing, Material is 45 steel, bar diameter is 40mm, shown as Fig.1.
[4] Xiao Q H: Manufacturing Technology & Machine Tool, Vol. 59 (2005), p. 125 [5] Zhou T, Chen B S, Zhao X Y: Equipment Manufacturing Technology, Vol. 16 (2006), p. 176 [6] Li L L: Tool Engineering, Vol. 44 (2010), p. 66 [7] Teng Z: Manufacturing Technology & Machine Tool, Vol.59 (2003), p. 60 [8] Zhang W M, Ru W, Yu M and et al: Modular Machine Tool & Automatic Manufacturing Technique, Vol. 50 (2007), p. 54