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Online since: June 2020
Authors: Yang Xu, Tao Lei, Xi Sheng Yang, Che Chang, Lin Feng Qian, Qian Gong
Microstructure Evolution of the as Tempered P92 Steel at High Temperature Exposure Yang Xu1,2,a, Tao Lei1, Yang Xisheng1, Che Chang1, Qian Linfeng1,3,b,*, Qian Gong1,c,* 1China Special Equipment Inspection and Research Institute, Beijing, 100029, China 2School of Chemistry, Beihang University, Beijing, 100191, China 3School of Aeronautic Science and Engineering, Beihang University, Beijing, 100191, China a592782553@qq.com, bqlfhit@sina.com, cglbqian@163.com Keywords: P92 steel, thermal aging, microstructure evolution.
P92 steel has been increasingly used as the key structural material for USC plants due to the excellent creep resistance and low cost [1, 2].
Online since: February 2023
Authors: S.J.A. Jairam, P. Mohamed Fathimal, D. Lokeshwar, B. Divya
The grey material that surrounds the cerebrum and is composed of cortical neurons is the cerebral cortex.
Rajkumar et al[7], propose Deep Leamer's Neural Network algorithms are key ways in medical imaging for the prediction of the early symptoms of an illness using MRI pictures.
References [1] Javaria Amin, Muhammad Sharif, Anandakumar Haldorai, Mussarat Yasmin, Ramesh Sundar Nayak - “Brain tumor detection and classification using machine learning: a comprehensive survey”, Complex & Intelligent Systems, October 2021 [2] Emrah Irmak - “Multi-Classification of Brain Tumor MRI Images Using Deep Convolutional Neural Network with Fully Optimized Framework”, Iranian Journal of Science and Technology, Transactions of Electrical Engineering, 10 April 2021 [3] G.
Online since: February 2012
Authors: Xiao Liu Liu
Design and technology of all-welded Longitudinal Seam sand control liner Xiaoliu Liu School of Material and Engineering, Xi^an Shiyou University, Xi’an 710065, China xlliu@xsyu.edu.cn.
Key words : wire wrapped screen; longitudinal seam pipe-type screen; The application of slotted liner; sand control Abstract : The new longitudinal seam pipe-type screen is designed, in order to avoid wire disorder and damage of wire wrapped the screen passes the bending zone in the heavy in dined well or horizorital well.
Online since: June 2011
Authors: Lei Zhao, Hong Wei Diao, Wei Ming Lu, Jun Zhang, Wen Jing Wang
J .Wang2,e 1State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Wencui Road 62, Shenyang 110016, China 2Laboratory of Solar Cell Technology, Institute of Electrical Engineering, The Chinese Academy of Sciences, No.6 Beiertiao Zhongguancun, Haidian District, Beijing 100190, China awmlu@imr.ac.cn,bzhangjun@mail.iee.ac.cn,cdiaohw@mail.iee.ac.cn, dzhaolei@mail.iee.ac.cn,ewjwang@mail.iee.ac.cn Keywords: ZnO; Magnetron sputtering; target-substrate distance; hydrogen.
Al-doped ZnO has attracted much attention due to its low cost, abundance, as a raw material, its nontoxic nature, and good stability in hydrogen plasma [6,7].
Online since: May 2011
Authors: Gui Zhong Li, Bo Wang, Ze Deng, Meng Geng
Table 1 Sensitivity Analysis Data Sheet Range Key parameters Upper value Medium value Lower value Young’s modulus (Mpa) 9000 5000 2000 Langmuir Volumetric strain (dimensionless) 0.02 0.011 0.002 Initial saturation (%) 100 80 50 Young’s modulus is a physical quantity which characterizes material tensile or compression resistance within the elastic limit.
Q. , Durucan, S., 2005 : “A model for changes in coalbed permeability during primary and enhanced methane recovery”, SPE Reservoir Evaluation & Engineering.
Online since: August 2012
Authors: Ya Quan Wang, Xue Bin Hong, Cong Zhang
R. of China bKey Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.
Briefly, a piece of metallic Ni sponge (BET surface area 0.25 m2/g, 80 % porosity, Changsha Liyuan Material Co., Ltd.) was cut into 40-60 mesh, treated with a mixture of 500 cm3 containing 0.01 wt. % HCl and 0.2 wt. % H2SO4 for 24 h, and then thoroughly washed with distilled water and dried.
Acknowledgement The financial supports by the Key project of Tianjin Natural Science Foundation under Grant No. 07JCZDJC00200 and the National High Technology Research and Development Program of China (863 Program) under Grant No. 2007AA05Z104 and 2006AA05Z115 are gratefully acknowledged.
Online since: June 2009
Authors: Spilios D. Fassois, John D. Hios
Fassois2,b 1,2Stochastic Mechanical Systems & Automation (SMSA) Laboratory Dept of Mechanical & Aeronautical Engineering, University of Patras, GR 265 00 Patras, Greece ahiosj@mech.upatras.gr, bfassois@mech.upatras.gr Keywords: statistical damage detection, temperature effects, stochastic global models, functionally pooled models, smart structures Abstract.
Introduction The influence of environmental factors on structural dynamics has attracted significant attention in the engineering community in recent years.
The total mass of the structure is 196.3 g, whereas the properties of the composite material and the piezoceramic patches are provided in [7].Ĭ (o C) -20oC +20oC k k1 kM … Multiple Experiments (healthy structure) k2 yk [t] t 1 yk [t] t 2 yk [t] t M … Global model (FP-VAR) identification DATA ACQUISITION Ĭ (o C) -20oC +20oC k k1 kM Current Experiment k2 yk [t] t … DATA ACQUISITION Conventional model (VAR) identification (specific ku) Estimation of characteristic quantity qu(ku) (modal parameters) įq= qo(ku) - qu(ku) įq = 0 Ȥ 2-test Current structure HEALTHY + � k[k1, kM] Current structure DAMAGED ?
ISMA 2008, Leuven, Belgium (2008), Paper ID 125 (extended version in Smart Materials and Structures Vol. 18 035011 (2009), doi:10.1088/0964- 1726/18/3/035011)
Fassois: Key Eng.
Online since: April 2015
Authors: Jian Lin Sun, Sang Xiong, Yang Xu
Adsorption Behavior of Thiadiazole as Corrosion Inhibitors on Copper Surface Sang Xionga, Jianlin Sunb* and Yang Xuc School of Materials Science and Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Beijing 100083, China ajxbjxs2008@163.com, bsjl@ustb.edu.cn, cxulg870@163.com, *corresponding author Keywords: Thiadiazole, Corrosion inhibitors, Copper, DFT, Reactivity, Adsorption.
Lubrication as a key technology of copper rolling is facing new challenges.
All calculations were carried out using Material Studio 6.1 program [9].
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 205(2002) 127-138
Online since: July 2025
Authors: Vishal D. Wankhade, Rajesh B. Pedhekar, Vinod S. Kalyamwar, Vilas R. Hiranwale, Suraj P. Patil
The n-n heterojunction formed between ZnO and WO3 played a key role in improving gas sensing performance.
Experimental 2.1 Materials The synthesis of ZnO-TiO2 nanocomposites involved the use of zinc oxide, titanium (IV) oxide (S.
Radamson, "Nanometer-Thick ZnO/SnO2 Heterostructures Grown on Alumina for H2S Sensing,"ACS Applied Nano Materials, 5 (2022) 6954-6963
Kapse, "Low temperature H2S gas sensor based on Fe2O3 modified ZnO-TiO2 thick film,"International Journal of Materials Science and Engineering, 3 (2015) 219
Raghuwanshi, "TiO2 modified ZnO thick film resistors as ammonia gas sensors,"Advanced Materials Letters, 4 (2013) 895-898
Online since: March 2008
Authors: Arunan Nadarajah, Joseph G. Lawrence, Thomas W. Hughes
Lawrence Department of Chemical & Environmental Engineering, University of Toledo, Toledo, OH 43606 and Thomas W.
Methods to commercially produce these materials are continuing to improve and their prices are beginning to come down (Sherman, 2007).
Carbon nanofibers (CNF's) belong in the same family of materials as SWCNT's and MWCNT's.
As we will discuss below, the methods to commercially produce these materials have now been developed for CNF's and we can expect that relatively abundant supplies of these materials will soon be available at moderate to low prices.
The inertness of graphitic structures also limits the uses of these materials.
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