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Online since: July 2011
Authors: Ding Ping Liu, Jin Xi Zheng, Zhi Hu Ai
(4) The higher grade material should be used to the high temperature superheater to improve the oxidation resistance performance.
The materials could be given special treatment so as to shot peening or plating. 5.
The maintenance and materials selection should be paid more attention as well.
[7] Baleix S, Bernhart G, Lours P: Materials Science and Engineering, A327 (2002)155-166
[8] XD Huang, XY Zhou, Z You, H Zhao: Journal of Power Engineering, 29(2009)602-608.
Online since: January 2011
Authors: Xian Yan Zhou, Qing Zhi Ma, Zhong Feng Zhang
Bamboo is also an indispensable material for construction.
Especially, the unique properties and the beauty of bamboo are improved by modern processing techniques, transforming the raw material into high quality products[3].
Materials and Methods Materials and Methods.
Acknowledgment This work was financially supported by the National Natural Science Fund of China (30901134), Plan Projects of Introducing Advanced International Forestry Technology (2010-4-14), Plan Projects of Hunan Province (2009GK3142), and Youth Scientific Research Fundation of Central South University of Forestry & Technology(2009044B).
Fengjuan,et al, Key Engineering Materials Journal,in press.
Online since: October 2025
Authors: Zong Hao Zhang, Zhen Tao Xiao, Yi Hao Zheng, Jin Hong Shi, Chen Xing Wang, Yun Teng Jiang, Islam Aynul
Enhancements in gate oxide capacitance can be efficiently realized by employing high-k dielectric materials or by meticulously reducing the thickness of the gate oxide layer [1, 2].
The material and thickness choices are carefully optimized based on process compatibility and device performance.
Assisted by the careful selection of materials, thickness and deposition order in HK/MG, the device performs 30.2%, 26.5% and 6.9% better than [1], [11] and [12], respectively.
Despite of the thin gate oxide, the gate leakage current is limited and reasonable [1, 2] due to the proper adoption of Hk material.
Su, “Mitigating DIBL and short-channel effects for III-V FinFETs with negative-capacitance effects,” IEEE Journal of the Electron Devices Society, vol. 10, pp. 65–71, 2022
Online since: May 2014
Authors: Niels Bosmans, Jun Qian, Dominiek Reynaerts
Using a low-expansion material such as Invar (CTE = 0.5-2 µm/mK), a distance of 45 mm would still result in a 22.5 to 90 nm thermal expansion.
Moreover, the capacitive sensor interface should still be made of the same material as the sensor's body, which is steel.
Current Status in, and Future Trends of, Ultraprecision Machining and Ultrafine Materials Processing.
Journal of Machine Tools & Manufacture. 2000; 40: 1235-1256
Ultraprecision, high stiffness cnc grinding machines for ductile mode grinding of brittle materials, Proc.
Online since: November 2013
Authors: Grzegorz Ćwikła
Information should contain data on execution of production orders, effectiveness of machinery and equipment, circulation of materials, semi-finished and finished products, activities performed by employees, quality of products, etc [1].
Deployment of barcode scanners at many points of the production system allows us to get information about the materials, semi-finished or finished products and equipment flow.
In particular, it is difficult to obtain data on employees activity and circulation of materials in the production system.
International Journal of Modern Manufacturing Technologies, Vol.
Hybrid Artificial Intelligent Systems, Lecture Notes in Computer Science Volume: 7209, 2012, pp. 284-295
Online since: July 2013
Authors: Ross O’Donovan, John Justin Murphy, Kieran D. Ruane, Brian D. O’Rourke
All of the structural members were coated with a bituminous material incorporating mica and a fine hard granite aggregate.
The bituminous material showed localised signs of failure due to material loss (Fig. 5) and in some instances trapped moisture was found between the concrete and bitumen membrane.
It is not a crystalline material and will occupy voids in concrete spaces without exerting expansive pressure on the concrete.
Cope, Concrete Bridge Engineering: Performance and Advances, Elsevier Applied Science, 1987
[21] Melchers R.E., Li C.Q., Phenomenological modelling of reinforcement corrosion in a marine environment, ACI Materials Journal, January-February 2006
Online since: December 2013
Authors: Yan Shi, Min Zhou, Ya Chun Huang
Digital Model Research on and Design of Large Plate Column Yan Shi*1, a,Min Zhou1,b, Yachun Huang 2,c 1Mechanical Engineering School, Sichuan University of Science & Engineering, Zigong, China 3 China Nuclear Power Engineering Co, Shenzhen, China asy71email@163.com b13700955098@163.com, chuangyachun@cgnpc.com.cn Keywords: plate column, Creo, design parameter, digital model.
Especially, due to the rapid development of modern oil industry and chemical industry, design conditions tending to be high parameter and large size, more types of treated process media and varieties of materials, the operation safety, reliability and efficiency requirements for columns are more and more strict and normative.
Besides, the nonstandard series part should depend on the parts labellization of mould and the serialization of material dimensions supplied.
When only the medium pressure is considered in working process, the mathematic model between geometric parameter and medium pressure and materials types can be described with Eq. 1
The material and welded connector factors can indirectly change the model structure and reach the target of working condition driving the structure change.
Online since: October 2017
Authors: Phichayanan Waiyanate, Hidetoshi Sekiguchi, Satoshi Kodama, Prodpran Siritheerasas
Microwave Torrefaction of Moist Municipal Solid Waste (MSW) Pellets with the Addition of Char from Agricultural Residues Prodpran Siritheerasas1,a*, Phichayanan Waiyanate1,b, Hidetoshi Sekiguchi2,c, and Satoshi Kodama2,d 1Department of Chemical Engineering, Faculty of Engineering, Thammasat University, Pathumthani 12120, Thailand 2Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, O-okayama Campus, Meguro-ku, Tokyo 152-8552, Japan asprod@tu.ac.th, bphichayanan.wai@dome.tu.ac.th, chsekiguc@chemeng.titech.ac.jp, dskodama@chemeng.titech.ac.jp Keywords: Torrefaction, Microwave irradiation, Municipal solid waste (MSW), Char, Agricultural residue.
Torrefaction, a low-temperature pyrolysis or a thermal decomposition of organic components in combustible materials in the absence of air, can be used to improve properties of MSW to be suitable for incineration [6].
The raw materials used to produce the model MSW comprised approximately 40 wt.% paper, 30% sawdust, 20% yard wastes, and 10% plastics.
Gersberg, Municipal solid waste management in China: Status, problems and challenges, Journal of Environment Management 91 (2010), 1623-1633
Ani, Pyrolysis of solid palm waste biomass with microwave absorber under microwave irradiation, Applied Mechanics and Materials 606 (2014), 73-77
Online since: April 2013
Authors: Alexander Flohr, Andrea Dimmig-Osburg
Finger-Institut of Building Materials Science, Germany aalexander.flohr@uni-weimar.de, bandrea.dimmig-osburg@uni-weimar.de Keywords: polymer-modified cement concrete; polymer matrix; load-deformation behavior; mechanical load Abstract.
In particular, the time-and stress-dependent material properties of the PCC have been explored only partially.
Materials The research were made with a low strength class Portland cement CEM I 32.5 R, to clearly point out the influence of the polymer modification.
Furthermore, crumb rubber as substitute materials with very little resistance to deformation were used.
Goto, Cracks formed in concrete around deformed tension bars, ACI Journal 68, No. 4, 1971, pp. 244 - 251 [5] E.
Online since: May 2012
Authors: Yan Feng Li, Wen Feng Huang, Rong Tao Zhu, Wen Da Zhao
Introduction The dehydration technology and equipments for existing fine grain materials cannot meet the dehydration requirements of coal slurry in the respects of product moisture, processing capacity, working system, capital investment, operating expenses and reliability [1,2].Thus, to research new type continuous, efficient and highly reliable dehydration technologies and equipments and strengthen the dehydration for fine grain materials is significant for the respects, such as to promote the technology of clean coal, improve and enhance the productive technology level of coal preparation plant, increase the enterprise’s economic benefits, enhance the utilization rate of resources and environmental protection, etc[3].
So in practical operation, with the available conditions, it shall try to increase the filter concentration, increase the filtration pressure, increase the content of coarse grain materials to get lower filtration product moisture.From the numerical expression of actual influence factor, we can see that : the filter cake moisture increases as the feed concentration increasing, but the influence is not big; the filtration pressure is the most largest influence factor for filter cake moisture, the much higher of the pressure, the much lower of the filter cake moisture, and conversely, the filter cake moisture much higher.
As the fine grain content in feeding materials increasing, the filter cake moisture rises, filtration period and filtrate concentration larger, and the treatment capacity lowers. 2)Perform design, result analysis and optimization for series of test of positive pressure filtration dehydration effect for feed concentration, filtration period and filtration pressure by Design-Exper, result of which shows: the filter cake moisture, filtrate concentration and dry coal slime treatment capacity has notable linear relations with the three operation parameters. 3)The mathematical models for relations among filter cake moisture, filtrate concentration and dry coal slime treatment capacity and the three operation parameters are respectively expressed as: Filter cake moisture=33.662622-0.024704×A- 0.15708×B+13.69179×C Filtrate concentration=-0.60444+1.8311e-3×A+8.517e -3×B+2.28435×C Sqrt(dry coal slime treatment capacity)=-16.60950+0.082385×A-0.016163×B-0.80814×C 4)Through the research on
Acknowledgements This work was financially supported by the New Century Excellent Talents Support Plan from Ministry of Education of China (NCET-10-0767), Supported by the National Natural Science Foundation of China (50904069) and Supported by the Fundamental Research Funds for the Central Universities (JH111793).
Journal of China University of Mining & Technology, 2005,34(3):343-348.
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