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Performance enhancement for a non-orthogonal multiple access system using 4 × 4 multiple-input multiple-output visible-light communication. Optical Engineering (2020) Optical satellite communication space terminal technology at TNO. Proceedings of SPIE (2018)
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Get Price2014-12-10 · 图形学领域的关键算法及源码链接. GTS (2D dynamic/constrained Delaunay triangulation, robust geometric predicates, mesh boolean set operations, refinement/coarsening, view-independent continuous LOD, view-dependent LOD, AABB-trees, Kd-trees, graph partitioning, isosurfacing, area, volume, mean/gaussian/principal curvature ...
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Get Price2017-5-1 · The mechanism of engineering mineralized enamel-like biomaterial represents a novel achievement in regenerative dentistry for repairing hard dental structures like enamel in what is known as “filling without drilling” approach. 101 Anionic β-sheet-forming peptides were found able to form three-dimensional fibrillar scaffolds when applied ...
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Get Price2020-7-3 · Enamel thickness varies from 2.5 mm at the cusp region to a knife edge at the cementoenamel junction; the dentin thickness is about 10 mm, the cementum thickness varies between 50 µm at the cervical area of the root portion to 150 µm at root apex, the mean volume of a single adult human dental pulp is 0.02 cc, the PDL space varies between 0 ...
Get Price2021-3-24 · Undergraduate Study. The Department of Mechanical Engineering (MechE) offers three programs of undergraduate study. The first of these, the traditional program that leads to the bachelor's degree in mechanical engineering, is a more structured program that prepares students for a broad range of career choices in the field of mechanical engineering.
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Get Price2020-10-1 · On the whole, the SDE distribution range was 0.3–28kJ mm 3 in the process of electric discharge machining advanced ceramics. While discharge current was 6A, the average values of SDE of machining Al6061, Inconel 718, and SDK11 were 0.52, 1.03, 0.98kJ mm 3, respectively [ 104 ].
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Get Price2021-3-6 · The enamel covers dentin in the tooth crown, the part of the tooth visible in the mouth [50,51,54]. Dentin and enamel are characterized by Knoop microhardness values of approximatively 30–70 and 200–350 KHN, respectively [55,56], the latter being the hardest tissue in the human body.
Get Price2021-2-10 · Two-equation eddy-viscosity turbulence models for engineering applications. F. R. Menter. F. R. Menter. NASA Ames Research Center, Moffett Field, California 94035. Search for …
Get Price2021-6-17 · Global Conference on Nanotechnology and Nanomaterials, 'the 2nd year of the international conference” held during June 17-18 at Berlin, brings together the leading academic and industry scientists, engineers, clinicians, entrepreneurs, visitors, researchers and exhibitions.This NANO Intellects 2021 is the international platform that brings together the collection of investigators in the ...
Get Price4.4 Micro-/Nano-Electromechanical Systems. A high surface-area-to-volume ratio extends the lifetime of MEMS/NEMS devices as adhesion and friction are reduced. Silicon is commonly utilized in MEMS/NEMS but experiences high friction and wear during sliding contact owing to the formation of an oxide layer.
Get Price2020-10-1 · On the whole, the SDE distribution range was 0.3–28kJ mm 3 in the process of electric discharge machining advanced ceramics. While discharge current was 6A, the average values of SDE of machining Al6061, Inconel 718, and SDK11 were 0.52, 1.03, 0.98kJ mm 3, respectively [ 104 ].
Get Price2021-3-24 · Undergraduate Study. The Department of Mechanical Engineering (MechE) offers three programs of undergraduate study. The first of these, the traditional program that leads to the bachelor's degree in mechanical engineering, is a more structured program that prepares students for a broad range of career choices in the field of mechanical engineering.
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Get Price2021-2-10 · Two-equation eddy-viscosity turbulence models for engineering applications. F. R. Menter. F. R. Menter. NASA Ames Research Center, Moffett Field, California 94035. Search for …
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Get Price2020-6-15 · To test the polymerization stress of nine self-adhesive resin composite cements (G-CEM, iCEM, Bifix SE, Maxcem Elite, PANAVIA SA, SoloCem, SmartCem 2, SpeedCEM, RelyX Unicem 2) and one glass ionomer cement (control group; Ketac Cem). The crack propagation of a feldspar ceramic (n = 130) was determined by measuring crack lengths that originated from Vickers indentations, prior to …
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Get Price2021-2-10 · Two-equation eddy-viscosity turbulence models for engineering applications. F. R. Menter. F. R. Menter. NASA Ames Research Center, Moffett Field, California 94035. Search for …
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Get Price2021-3-1 · teeth, there is also a cavitation (hole) in the simulated enamel on the proximal surface. This cavitation extends through the simulated enamel into the simulated dentin and must be included as part of the preparation. As a result of the manufacturing process, there is a small cement-filled space …
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Get Price2016-10-16 · When α=15°, the max lift to drag ratio Kmax was 4.208, in this case CL =1.340, CD =0.318. Suggest the best working scope of angle of attack is between 15°~30°, in which case, CL>1.340 and K>3.486. The mean value of lift coefficient was 1.810 and the mean of lift to drag ratio was 3.968.
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