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Online since: May 2024
Authors: Muhammed Naziruddin Khan, Abdullah Almohammedi
Boltasseva, Oxides and nitrides as alternative plasmonic materials in the optical range, Optical Materials Express, 1(2011) 1090–1099
Khalaf, Effect of Laser Pulses on Characterization of Zinc Oxide Thin Film Prepared by PLD, Engineering and Technology Journal, 36(2018).93-98
Basu, Laser annealing of zinc oxide thin film deposited by spray-CVD, Material Science and Engineering B, 52 (2018) 25
Zhou, Engineering the defect distribution in ZnO nanorods through laser irradiation, Nanotechnology 34 (2023) 495703
Davis, Electronic Processes in Non-Crystalline Materials, Electronic Processes in Non-Crystal Materials, 382 & 428 Clarendon, Oxford, 1979
Online since: July 2011
Authors: Ling Jing Hu, Long Zheng Tong, Yun Yun Duan, Bo Wu
Comparison of the unified segmentation method and the new segmentation method on detection of grey matter and white matter changes in Alzheimer’s disease based on Voxel-based morphometry Lingjing Hu1,a, Longzheng Tong1,b, Yunyun Duan2,c, Wu bo1,d 1Department of Biomedical Engineering, Capital Medical University, Beijing, China 2Department of Radiology, Xuanwu Hospital, Beijing, China aHulingjing@gmail.com, bTlz823@126.com, cYun.duan81@gmail.com, dWubogo@gmail.com Keywords: Alzheimer’s disease, White matter, Gray matter, Voxel-based morphometry Abstract.
Although the diagnosis can be confirmed with high accuracy post-mortem when the available brain material can accept histopathological examination [2], it is difficult to clinically diagnose the early AD in vivo through the patient history, collateral history from relatives, and clinical observations, based on the presence of characteristic neurological and neuropsychological features and the absence of alternative conditions [3, 4].
Materials and methods Subjects.
Tissue Type UNI-Seg mean (SD, CV) New-Seg mean (SD, CV) p-value AD GM 480.2 (48.2, 0.10) 628.6 (55.1, 0.03) <0.001 WM 373.9 (52.9, 0.14) 454.8 (47.9, 0.11) <0.001 CSF 656.8 (78.4, 0.12) 324.4 (25.8, 0.08) <0.001 HC GM 640.4 (249.3, 0.39) 641.8 (46.5, 0.07) NS WM 643.9 (34.3, 0.05) 475.5 (33.9, 0.07) =0.005 CSF 532.9 (71.4, 0.13) 304.5 (28.3, 0.09) <0.001 Key: UNI-Seg, Unified segmentation; New-Seg, New segmentation.
Online since: June 2011
Authors: Andrei V. Nazarov, Irina Valikova
Simulation of atomic structure and diffusion characteristics of point defects in BCC and FCC metals Irina Valikova1,a , Andrei Nazarov1,b 1Department of Material Science, Moscow Engineering Physics Institute, 115409, Kashirskoe shosse, 31, Moscow, RUSSIA aIValikova@mail.ru, bavn46@mail.ru Key words: Diffusion, point defects, pressure, formation volumes, migration volumes Abstract.
Fundamentals, methods, materials, diffusion-controlled processes (Springer-Verlag Berlin Heidelberg 2007)
Online since: October 2006
Authors: A. Etin, G.E. Shter, G.S. Grader
Grader Chemical Engineering Department, Technion, Haifa 32000, Israel grader@tx.technion.ac.il Keywords: PZT films, thickness, sol-gel, microstructure, image analysis Abstract: The R&D of state of the art PZT (PbZrxTi1-xO3) films is important due to their piezoelectric, pyroelectric and ferroelectric properties.
These diverse applications rely on the piezoelectric, pyroelectic and ferroelectric properties of the PZT material.
The production of the PZT films is particularly important since they have several key advantages over bulk ceramics that include lower driving voltage and device dimensions as well as easier integration into electronic circuits.
Experimental: For precursor synthesis the following starting materials were used: lead acetate trihydrate Pb(O2C2H3)2·3H2O (99,5%, Fluka), titanium iso-propoxide Ti(OC3H7)4 (97%, Aldrich) and zirconium acetyl acetonate Zr(O2C5H8)4 (98%, Sigma). 1,3-propanediol (99%, Fluka) and acetylacetone (98%, Fluka) were employed as a solvent and stabilizer, respectively.
Online since: January 2005
Authors: Eun Sun Yoo, In Mo Yoon
Furthermore, the biosciences are increasingly confronted with minute amounts of this material obtained from natural or biological systems.
Synthesis of Trisaccharides UDP-galactose + aminosugar containing isomeric disaccharide(new donor) Gal(β1-3)GalNAc Gal(β1-3)GlcNAc Gal(β1-4)GlcNAc Gal(β1-6)GlcNAc ----- → isomeric trisaccharide (new linkage-isomeric oligosaccharide) Gal(β1-4)Gal(β1-3)GalNAc Gal(β1-4)Gal(β1-3)GlcNAc Gal(β1-4)Gal(β1-4)GlcNAc Gal(β1-4)Gal(β1-6)GlcNAc Title of Publication (to be inserted by the publisher) Experimental Section Materials.
In contrast, the NMR method requires a relatively large sample amount (mg level) for a structural analysis, which is the weak point of this analytical method as regards biological samples, while mass spectrometry requires small sample amounts (µg level) and provides a unique method for investigating the type, number of sugar constituents, sequence, and sugar composition of molecular ions, as well as key fragments.
This work was supported by the Korea Science and Engineering Foundation (R04-2002-000-20042-0).
Online since: September 2013
Authors: Yan Ni Li, Xiao Yan Zhu, Wei Li Wang, Jing Lan Wang, Zhi Rong Wang
Experimental Study on Oil-degradation Microbial Consortium from Oil-contaminated Soil by Different Enrichment and Domestication Zhirong Wang1, a, Yanni Li2,b, Xiaoyan Zhu3,c, Weili Wang3,c, Jinglan Wang3,c 1.2.3College of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, 300384, China awangzr@tjut.edu.cn,bliyanni_jy@163.com, czhuxiaoyanjjj@126.com, c415606341@qq.com,cmaolan2008_123@126.com.
Key words: Oil, Microbial consortium, Enrichment and domestication, Soil Abstract.
It is easier for bacterial consortiums to adapt the adverse environments; so allows bacterial consortiums to make extensive use of natural or artificial material as its energy source as well as synthesis of necessary components [8].
Materials and Methods Crude Oil and Oil-contaminated Soil.
Online since: October 2013
Authors: Pavel Hazdra, Vít Záhlava, Jan Vobecký
Point Defects in 4H-SiC Epilayers Introduced by 4.5 MeV Electron Irradiation and Their Effect on Power JBS SiC Diode Characteristics Pavel Hazdra1,a, Vít Záhlava1,b and Jan Vobecký1,2,c 1Department of Microelectronics, Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, CZ-16627 Prague 6, Czech Republic 2ABB Switzerland Ltd., Semiconductors, Fabrikstrasse 3, CH-5600 Lenzburg, Switzerland ahazdra@fel.cvut.cz (corresponding author), bzahlava@fel.cvut.cz, cjan.vobecky@ch.abb.com Keywords: silicon carbide, radiation defects, electron irradiation, power diode Abstract.
Introduction Outstanding properties of SiC (wide bandgap, high electric and mechanical strength, high thermal conductivity and stability, and high radiation resistance) make this material suitable for fabrication of high-power and high-frequency devices or electronics operating at high temperatures and radiation levels.
Only the recent improvements in SiC material allowed for its industrial application.
Point defects generated by radiation are then of key importance since they are produced both during device processing (ion implantation) and device operation (by cosmic rays).
The dominant peak EA1 was identified as the Z1/Z2 electron trap attributed to an intrinsic acceptorlike defect which appears at low concentrations in as-grown material and is enhanced by irradiation [7].
Online since: December 2014
Authors: Tobias Müller, Thorsten Schmidt, Stefan Weigelt, Ludger Overmeyer
Due the increasing use of electronics in control elements to raise energy efficiency and ease of use, the electronic components have nowadays become a key factor in the consistency of the overall forklift truck system.
It describes the grade of rigidity for constant life time between the fatigue strength and the fatigue strength under dynamic stresses, is a material dependent quantity and is by definition in the range between 0 and 1.
However, due to the inherent material diversity, a single M factor describing an electronic component is hard to define.
The investigations for the control levers of the reach truck create failure characteristic curves similar to the wöhler-curve, which is familiar from material engineering [3], as shown figure 7.
Online since: September 2011
Authors: Chao Yang Zhou, Xue Jun He, Teng Chen, Xiao Hua Yang
Research on post-tensioned unbonded prestressed concrete hollowed floor Xiaohua Yang1,2,a,Chaoyang Zhou2,b,Xuejun He2,c,Teng Chen1,d 1 Schools of Civil Enginerring, Hunan University of Technology, Zhuzhou 412008, China 2 Schools of Civil Enginerring ,Central South University, Changsha 410075, China ayangsheep@126.com, bjoezycn@163.com, cjunxuehe@126.com, dchenteng@126.com Key words: post-tensioned unbonded prestressed concrete hollowed floor; slab-column structure; mechanical behaviors.
Therefore, in same conditions of spans, sections and materials, the deflections of flat beams in direction vertical to layout of tubes should be more than that in direction parallel to layout of tubes, and the twisting angles in direction vertical to layout of tubes should also greater than that in direction parallel to layout of tubes.
The geometry sizes of finite element model, properties of material and applied loads are exactly the same as test model.
Through above analysis, the reinforcement of hollowed floor in X direction should be attention to in engineering applications.
Online since: May 2023
Authors: Waleed Almukhtar Allafi, Saleh Suliman Saleh Elfallah
Also, an appreciation goes to the College of Mechanical Engineering Technology in Benghazi, Libya.
Balaji, Evaluation of hardness and tensile strength of micro spot welded joints on different materials, Int.
[26] ASTM, Standard test methods for tension testing of metallic materials, ASTM E8-04. (2021) [27] World Material, EN 1.0038 steel S235JR material equivalent, properties, composition. (2022).
Rethwisch, Fundamentals of materials science and engineering: an integrated approach, John Wiley & Sons, 2020
Trojan, Engineering materials and their applications, fourth ed., Wiley-VCH, 1994
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