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Online since: February 2021
Authors: Zhen Zhong Zhang, Bo Rui Yang, Li Ming Wu, Fang Xia Zhao
In recent years, people have discovered that many nano-materials have multiple properties of inorganic and organic materials and are widely used in many fields.
Experimental Methods Materials and reagents The Commercial No.2 complex calcium sulfonate grease was produced by Total Oil Co., Ltd.
The average primary particle diameters were 15 nm, 20 nm, and 60 nm for the nano-SiO2 and 200 nm, 1 μm, 5 μm for the ultrafine MoS2 powders, which were all obtained from Nanjing Haitai Nano Materials Co., Ltd.
Journal of Nanjing Normal University (Natural Science Edition). 34, 7-12(2011) [8] Draoui, A., Zidour, M., Tounsi, A., Adim, B.: Static and Dynamic Behavior of Nanotubes-Reinforced Sandwich Plates Using (FSDT).
Materials Review, 32, 1276-1282(2018)
Experimental Methods Materials and reagents The Commercial No.2 complex calcium sulfonate grease was produced by Total Oil Co., Ltd.
The average primary particle diameters were 15 nm, 20 nm, and 60 nm for the nano-SiO2 and 200 nm, 1 μm, 5 μm for the ultrafine MoS2 powders, which were all obtained from Nanjing Haitai Nano Materials Co., Ltd.
Journal of Nanjing Normal University (Natural Science Edition). 34, 7-12(2011) [8] Draoui, A., Zidour, M., Tounsi, A., Adim, B.: Static and Dynamic Behavior of Nanotubes-Reinforced Sandwich Plates Using (FSDT).
Materials Review, 32, 1276-1282(2018)
Online since: August 2020
Authors: How Ji Chen, Chung Hao Wu, Hsien Sheng Peng
If the WPS could be used to replace natural sand for producing concrete as construction material, it becomes a useful material and can be disposed effectively.
This concrete was applied as construction materials.
The properties of the test materials and test methods are described as follows: 2.1 Test Materials
Chen, “Research on the Sludge of Water Purification in Compressed Concrete Paving Units Production,” Asian Conference on Civil, Material and Environmental Sciences, ACCMES-0056, Tokyo, Japan, (2018)
Moniem, “Pozzolanic-based materials for stabilization/solidification of contaminated sludge with hazardous heavy metal: case study,” Journal of Desalination and Water Treatment, 51, 13-15, pp. 2644-2655, (2013)
This concrete was applied as construction materials.
The properties of the test materials and test methods are described as follows: 2.1 Test Materials
Chen, “Research on the Sludge of Water Purification in Compressed Concrete Paving Units Production,” Asian Conference on Civil, Material and Environmental Sciences, ACCMES-0056, Tokyo, Japan, (2018)
Moniem, “Pozzolanic-based materials for stabilization/solidification of contaminated sludge with hazardous heavy metal: case study,” Journal of Desalination and Water Treatment, 51, 13-15, pp. 2644-2655, (2013)
Online since: October 2018
Authors: Madiha A. Shoeib, Iman El-Mahallawi, Heba R. Abd El-Aaty, Osama Tobail
Pizzina, Advanced Silicon Materials for Photovoltaic Applications, Wiley (2012) pp35-40
Hegedus, Handbook of Photovoltaic Science and Engineering, Wiley (2003) pp505-506
Ohring, Materials Science of Thin Films, 2nd edition (2002) pp327
Hwang, Non-Classical Crystallization of Thin Films and Nanostructures in CVD and PVD Processes, Springer Science Business Media Dordrecht, 2016 pp1-2, 83, 94-95, 163-164, 307-308
AGBO et al, Deposition Pressure and Hydrogen Dilution Effects on the Spectral Response of Thin Film Nanocrysyalline Silicon Solar Cells, Journal of Ovonic Research 9(1) (2013) pp2-4
Hegedus, Handbook of Photovoltaic Science and Engineering, Wiley (2003) pp505-506
Ohring, Materials Science of Thin Films, 2nd edition (2002) pp327
Hwang, Non-Classical Crystallization of Thin Films and Nanostructures in CVD and PVD Processes, Springer Science Business Media Dordrecht, 2016 pp1-2, 83, 94-95, 163-164, 307-308
AGBO et al, Deposition Pressure and Hydrogen Dilution Effects on the Spectral Response of Thin Film Nanocrysyalline Silicon Solar Cells, Journal of Ovonic Research 9(1) (2013) pp2-4
Online since: December 2012
Authors: Rozandi Prarizky, Wahidin Wahab, Li Na, Dede Sutarya, Benyamin Kusumoputro
Material and Method
Data Collections.
The pellets that have been rejected, by convention go back to acid dissolution along with the other rejected materials.
References [1] Briyatmoko B., Rachmawati M., and Yulianto T., “Current status of R&D of nuclear fuel elements for PWR in Indonesia,” in Advanced Fuel Pellet Materials and Fuel Rod Design for Water Cooled Reactors, IAEA-TTECDOC-1654, (2010), p. 99-104
[2] Pramanik D., Ravindran M., Rao G.V.S.H., and Jararaj R.N., “Innovative process techniques to optimize quality and microstructure of UO2 fuel for PHWRs in India,” in Advanced Fuel Pellet Materials and Fuel Rod Design for Water Cooled Reactors, IAEA-TTECDOC-1654, (2010), p 13-34
[11] Han Yan, Zhihong Zou and Huiwen Wang, “Adaptive neuro fuzzy inference system for classification of Water quality status,” Journal of Enviromental Science, Science Direct, vol. 22(2) (2010), p. 1891–1896
The pellets that have been rejected, by convention go back to acid dissolution along with the other rejected materials.
References [1] Briyatmoko B., Rachmawati M., and Yulianto T., “Current status of R&D of nuclear fuel elements for PWR in Indonesia,” in Advanced Fuel Pellet Materials and Fuel Rod Design for Water Cooled Reactors, IAEA-TTECDOC-1654, (2010), p. 99-104
[2] Pramanik D., Ravindran M., Rao G.V.S.H., and Jararaj R.N., “Innovative process techniques to optimize quality and microstructure of UO2 fuel for PHWRs in India,” in Advanced Fuel Pellet Materials and Fuel Rod Design for Water Cooled Reactors, IAEA-TTECDOC-1654, (2010), p 13-34
[11] Han Yan, Zhihong Zou and Huiwen Wang, “Adaptive neuro fuzzy inference system for classification of Water quality status,” Journal of Enviromental Science, Science Direct, vol. 22(2) (2010), p. 1891–1896
Online since: October 2012
Authors: Ju Gen Fu, Rui Xuan Luan, Yan Ting Zhang
Roadway Hard Rock Loose Blasting by Digging Machine Technique
Ju-gen FU1, a, Rui-xuan LUAN1, a, Yan-ting ZHANG1, a
1Anhui University of Science & Technology, Huainan Anhui, 232001,China
aemail: jgfu@aust.edu.cn
Key words: digging machines; hard rock; roadway; loose blasting
Abstract.
When the blast hole block length is too short, the plug material will out of the blast holes prematurely , so that the detonation gas would not achieve the "gas wedge", affect the blasting effects; When the plug material is too long, it will not only increase the workload of blockage, affect the speed of construction but also will lead the cracks cannot reach to the orifice rock, so orifice rock cannot reach the purpose of loosening, so mechanized mining machine does not work, affecting the normal production of coal.
According to the literature , the maximum plug length is: (5) Where: is the Blast hole radius; is the friction coefficient of clogging materials and blast hole wall, for the clay; for a mixture of sand and clay; is lateral pressure coefficient, related to the material’s Poisson’s ratio,.
Huainan Mining Institute learned journal, 1995, 15(1):18-22
When the blast hole block length is too short, the plug material will out of the blast holes prematurely , so that the detonation gas would not achieve the "gas wedge", affect the blasting effects; When the plug material is too long, it will not only increase the workload of blockage, affect the speed of construction but also will lead the cracks cannot reach to the orifice rock, so orifice rock cannot reach the purpose of loosening, so mechanized mining machine does not work, affecting the normal production of coal.
According to the literature , the maximum plug length is: (5) Where: is the Blast hole radius; is the friction coefficient of clogging materials and blast hole wall, for the clay; for a mixture of sand and clay; is lateral pressure coefficient, related to the material’s Poisson’s ratio,.
Huainan Mining Institute learned journal, 1995, 15(1):18-22
Online since: March 2015
Authors: Hai Feng Zhang, Yang Song, Wei Dong, Lian Yu Wei
The Control of Material Quality
Asphalt Mixture.
(1) The requirements of material Modified asphalt + hot mix macadam should ensure produce good adhesion, and this layer has multiple effects such as crack resistance and waterproof.
Key Points of Construction Quality Control According to the engineering experience in past years and test results analysis of Beijing-Tianjin-Tanggu expressway, key control points of the mixture of raw materials are determined, the performance of asphalt mixture has improved greatly.
References [1] The ministry of communications highway science institute.
Journal of China & Foreign Highway.2001.8 [6]Zhi-jun zhang,Li-fa qiu,Xin zhao,Xiao-dong Wang.
(1) The requirements of material Modified asphalt + hot mix macadam should ensure produce good adhesion, and this layer has multiple effects such as crack resistance and waterproof.
Key Points of Construction Quality Control According to the engineering experience in past years and test results analysis of Beijing-Tianjin-Tanggu expressway, key control points of the mixture of raw materials are determined, the performance of asphalt mixture has improved greatly.
References [1] The ministry of communications highway science institute.
Journal of China & Foreign Highway.2001.8 [6]Zhi-jun zhang,Li-fa qiu,Xin zhao,Xiao-dong Wang.
Online since: February 2011
Authors: Zhao Xiang Deng, Hai Jun Zhao
Measurement of the Incident Sound Power in Ducts and Effect factors Analysis
Zhao Hai-jun1,a ,Deng Zhao-xiang2,b
1 Department of Mechanical Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
2 State Key Laboratory of Automotive NVH and safety control,Chongqing 400039, China
ahjzhaoly@sina.com, bzxdeng@equ.edu.cn
Keywords: Incident sound power, Effect factor, Two-microphone method
Abstract: Based on two-microphone transfer function method, the measuring method of incident sound power in duct is introduced, The special test equipment is built, and the test and measurement program of incident sound power in duct is written, and effect factors of measurement are analyzed.
The method was used to measure sound absorption coefficient, acoustic impedance of materials and transmission loss of mufflers.
Two material specimens were tested using the two methods, the results of the analytical and numerical uncertainty methods showed good agreement [4].
When M is 0, it is a condition with no flow, acoustic characteristics of materials and mufflers are often tested in this condition.
Journal of Sound and Vibration, 304 (2007) 91-109.
The method was used to measure sound absorption coefficient, acoustic impedance of materials and transmission loss of mufflers.
Two material specimens were tested using the two methods, the results of the analytical and numerical uncertainty methods showed good agreement [4].
When M is 0, it is a condition with no flow, acoustic characteristics of materials and mufflers are often tested in this condition.
Journal of Sound and Vibration, 304 (2007) 91-109.
Online since: February 2018
Authors: Adam Hubáček
These disadvantages can be elimnated by application of water-tight concrete, where the water-tightness is guaranteed by the material itself.
Because the document is a translation of an Austrian directive, different input materials are required for standardized concrete, for example cement without C3A.
Technical regulations are elaborated based on knowledge of science, technology and practice.
LO1408 "AdMaS UP – Advanced building materials and technologies” supported by Ministry of Education, Youth and Sports within the special purpose support of the program "National Sustainability I" and the project Specific research no.
Journal Building Industry [online]. 2010, (3), 49-52 [cit. 2016-05-21]
Because the document is a translation of an Austrian directive, different input materials are required for standardized concrete, for example cement without C3A.
Technical regulations are elaborated based on knowledge of science, technology and practice.
LO1408 "AdMaS UP – Advanced building materials and technologies” supported by Ministry of Education, Youth and Sports within the special purpose support of the program "National Sustainability I" and the project Specific research no.
Journal Building Industry [online]. 2010, (3), 49-52 [cit. 2016-05-21]
Online since: February 2012
Authors: Meng Ya Zhang, Zhi Min Chen, Ying Chi, Qing Ying Zhang
Introduction
As an important node of cold chain logistics, cold store creates the appropriate conditions of humidity and low temperature, which is mainly for the processing and storage of perishable food, industrial raw materials, biological products and medical supplies.
Furthermore, the integrated use of a variety of modern technologies is able to decrease transactional works in those aspects to the greatest extend, improve the synthetical management ability of materials, and guarantee the related personnel’s safety.
The comprehensive application of science and technology makes it possible for the safety management of cold store to turn from the traditional experience management modes and advances to the scientification and modernization [3].
[3] Wu Yaohua, Wang Ying, Xiao Jiwei and Gao Hongfeng, “Research status and development trends of modern material handling system,” Chinese Journal of Medichal Engineering, vol.35, no.4, pp.1–5, 1999
Furthermore, the integrated use of a variety of modern technologies is able to decrease transactional works in those aspects to the greatest extend, improve the synthetical management ability of materials, and guarantee the related personnel’s safety.
The comprehensive application of science and technology makes it possible for the safety management of cold store to turn from the traditional experience management modes and advances to the scientification and modernization [3].
[3] Wu Yaohua, Wang Ying, Xiao Jiwei and Gao Hongfeng, “Research status and development trends of modern material handling system,” Chinese Journal of Medichal Engineering, vol.35, no.4, pp.1–5, 1999
Online since: February 2012
Authors: Khurram Mehboob, Xin Rong Cao
Evaluation of Iodine Source Term in PWR under Loss of Coolant Accident
1Khurram Mehboob, 2Cao Xinrong
College of Nuclear Science and Technology
Harbin Engineering University
Harbin, China.
1khurramhrbeu@gmail.com, 2caoxinrong@hrbeu.edu.cn
Keywords: TMI-2, Source Term, Iodine, Accident, LOCA.
In 2009 Sana-Ullah et al., has studied the source term of upgraded LEU PARR-1 research reactor, which is the material test reactor [5].
Summary of design parameters of TMI-2 reactor Fig.1 Schematic diagram of TMI- 2 Reactor Parameter Value Reactor PWR Fuel assemblies 177 Fuel assembly matrix 15×15 Thermal Power 2720MW Electric power 880MW Core Power 995MW Fuel Material UO2 Average Fuel Enrichment wt% 2.4% Fuel Pin Diameter (cm) 1.0922 Fuel pin length (cm) 36.57 Control Rods 16 Control Rod Material Ag (80%)-In (15%)-Cd (5%) Fuel Rod material Uranium ≈ 82.810 Tone Zirconium ≈23.100 Tone Oxygen ≈11.300 Tone Cladding material Zircaloy Steam generator type OTSG Steam generators 2 Reactor Coolant pumps 4 Hot legs 2 Cold legs 4 Source Term The Source term is defined as the amount of air born radioactivity which in term depends upon the burn up, fuel cycle, fissile contents, power level and operating schedule, etc.
Michael Schöppner et, al., Estimation of the time-dependent radioactive source-term from the Fukushima nuclear power plant accident using atmospheric transport modeling” Journal of Environmental Radioactivity, xxx (2011) 1-5 (article under press) [8].
In 2009 Sana-Ullah et al., has studied the source term of upgraded LEU PARR-1 research reactor, which is the material test reactor [5].
Summary of design parameters of TMI-2 reactor Fig.1 Schematic diagram of TMI- 2 Reactor Parameter Value Reactor PWR Fuel assemblies 177 Fuel assembly matrix 15×15 Thermal Power 2720MW Electric power 880MW Core Power 995MW Fuel Material UO2 Average Fuel Enrichment wt% 2.4% Fuel Pin Diameter (cm) 1.0922 Fuel pin length (cm) 36.57 Control Rods 16 Control Rod Material Ag (80%)-In (15%)-Cd (5%) Fuel Rod material Uranium ≈ 82.810 Tone Zirconium ≈23.100 Tone Oxygen ≈11.300 Tone Cladding material Zircaloy Steam generator type OTSG Steam generators 2 Reactor Coolant pumps 4 Hot legs 2 Cold legs 4 Source Term The Source term is defined as the amount of air born radioactivity which in term depends upon the burn up, fuel cycle, fissile contents, power level and operating schedule, etc.
Michael Schöppner et, al., Estimation of the time-dependent radioactive source-term from the Fukushima nuclear power plant accident using atmospheric transport modeling” Journal of Environmental Radioactivity, xxx (2011) 1-5 (article under press) [8].