Batmani, Saideh Yeganeh, Reza Azizi, Abdolhamid
Published in
Journal of Bio- and Tribo-Corrosion
This study investigates the effects of surface quality obtained by Magnetic Abrasive Finishing process (MAF) on the amount of chemical corrosion created by agricultural pesticides. MAF is a relatively new method of finishing which uses a magnetic field to control the abrasive tools. In this study, samples from two types of AISI304 stainless steel a...
Ren, Jing Li, Siyue He, Huan Senetakis, Kostas
Published in
Granular Matter
AbstractWe investigated experimentally the tribological behavior of tailing grain contacts using a micromechanical apparatus which allows high precision of force and displacement measurements to derive contact stiffness. A technique was developed to apply biopolymer coating to the grain surfaces and the emphasis of the study was placed on the inves...
Maroof, M. Ali Mahboubi, Ahmad Noorzad, Ali
Published in
Granular Matter
Transporting finer fractions inside the soil skeleton or the erosion of base soils within the filter are the two main challenges for earthen hydraulic structures, their foundations, and filter design. Soil particle morphology could influence pore size distribution and transport of fine grains; however, there is not sufficient knowledge on the effec...
Papangelo, Antonio Ciavarella, Michele
Published in
Tribology Letters
Recently, Dalvi and co-authors have shown detailed experimental data of adhesion of soft spheres with rough substrates with roughness measured down to almost the atomic scale, finding that the Persson and Tosatti theory gave satisfactory predictions of the apparent work of adhesion during loading, once the increase of the surface area due to roughn...
LI, Si-yu DUAN, Xue-fei CAO, Ye
Published in
Journal of Peking University (Health Sciences)
目的 比较超声器械与金刚砂车针预备所形成的肩台表面粗糙度的差异,为超声肩台预备的临床开展提供依据。 方法 (1) 6颗离体前磨牙颊舌侧的不同区域分别使用不同粗糙度的金刚砂车针进行预备,聚醚橡胶制取肩台区印模,三维形貌测量激光显微镜(three-dimensional topography measurement laser microscope, 3-D TMLM)扫描印模并比较表面粗糙度。(2)6颗离体前磨牙颊侧的近、远中分别使用金刚砂车针和超声器械进行预备,聚醚橡胶制取肩台区印模,3-D TMLM扫描印模并比较表面粗糙度,牙科显微镜(×25)观察肩台表面形态。(3)上颌对称同名离体前牙20颗,灌注标准模型后随机分为超声器械组和金刚砂车针组,于仿头模上牙体预备后聚醚橡胶制取肩台印模;扫描并...
Persson, B. N. J.
Published in
Tribology Letters
I consider fluid flow at the interface between solids with random roughness. For anisotropic roughness, obtained by stretching isotropic roughness in the x-direction by a factor of γ1/2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepack...
Hériveaux, Yoann Nguyen, Vu-Hieu Biwa, Shiro Haïat, Guillaume
Published in
Ultrasonics
Quantitative ultrasound can be used to characterize the evolution of the bone-implant interface (BII), which is a complex system due to the implant surface roughness and to partial contact between bone and the implant. The determination of the constitutive law of the BII would be of interest in the context of implant acoustical modeling in order to...
Bailly, Jean-Stéphane Vinatier, Fabrice Rudi, Gabrielle
International audience
Hu, Lai Li, Yipeng Chen, Yaolong
Published in
Journal of Mechanical Science and Technology
This paper mainly analyzes and experiments the processing technology of high speed (12000 r/min) and large proportion thin-wall parts (thickness/width = 1:80 and thickness/height = 1:120), so as to guide the machining of closed centrifugal impellers in aerospace. In this process, low melting point alloy is selected as the filling material to increa...
Alamshahi, Farhad Rahimzadeh, Hassan Rafee, Roohollah Moghimi, M A Talebizadehsardari, Pouyan
Published in
Sādhanā
In this paper, the effects of channel roughness on the droplet removal efficiency and pressure drop in a zigzag mist eliminator are investigated. The fluid flow, droplet dispersion and deposition through the demister are modelled using a commercial Computational Fluid Dynamics (CFD) tool. The turbulent airflow is simulated using two different Shear...