Results 211 to 220 of about 391,322 (266)
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Waste Management, 2017
Enhancement of the biosorption capacity for gold is highly desirable for the biorecovery of secondary gold resources. In this study, polyethylenimine (PEI) was grafted on Shewanella haliotis surface through layer-by-layer assembly approach so as to improve the biosorption capacity of Au(III). Results showed that the relative contribution of amino group
Chaohong Shi, Nengwu Zhu, Pingxiao Wu
exaly +3 more sources
Enhancement of the biosorption capacity for gold is highly desirable for the biorecovery of secondary gold resources. In this study, polyethylenimine (PEI) was grafted on Shewanella haliotis surface through layer-by-layer assembly approach so as to improve the biosorption capacity of Au(III). Results showed that the relative contribution of amino group
Chaohong Shi, Nengwu Zhu, Pingxiao Wu
exaly +3 more sources
Mechanism and patterns of wear of chrome steels with a surface-modified layer
Materials Letters, 2021Abstract The paper presents the results of contact wear studies of surface layers of 6Cr4Mo2VSi steel under the action of pulsating contact stresses. Differences in wear resistance of surface layers of materials are shown, in interrelation with modes of synthesis of their structure and properties.
Igor Stepankin +3 more
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Ultrasonic characterization of surface modified layers
Metallurgical Transactions A, 1987Nondestructive techniques are required for the in-process characterization of rapidly solidified and surface modified layers to fulfill the role of sensors in emerging intelligent materials processing technologies. In steels, where surface modificationvia directed high energy sources is being investigated for surface hardening, it has been found that a
Bret J. Elkind +2 more
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Electroanalysis, 2007
AbstractElectrochemical oxidation of a phospholipid, phosphatidylcholine (PC), was accomplished at a 4‐aminothiophenol (ATP)‐modified gold electrode coated with a layer‐by‐layer assembly of an electrochemical catalyst (dirhodium phosphomolybdic acid), a trapping agent for PC (a cyclophane, CP, derivative, 1,4‐xylylene‐1,4‐phenylene‐diacetate), and a ...
M. M. Wandstrat, J. A. Cox
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AbstractElectrochemical oxidation of a phospholipid, phosphatidylcholine (PC), was accomplished at a 4‐aminothiophenol (ATP)‐modified gold electrode coated with a layer‐by‐layer assembly of an electrochemical catalyst (dirhodium phosphomolybdic acid), a trapping agent for PC (a cyclophane, CP, derivative, 1,4‐xylylene‐1,4‐phenylene‐diacetate), and a ...
M. M. Wandstrat, J. A. Cox
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Modeling of Surface Modified Layers in the Presence of Surface Irregularities
Journal of Tribology, 1996Finite element calculations that examine the effects of surface modification on the deformation produced by pure rolling contact are presented. The model simulates the repeated, two-dimensional (line) contact of a cylinder that is rolling over a semi-infinite half space.
Vikas Gupta +3 more
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Antiglare and antireflective coating of layer-by-layer SiO2 and TiZrO2 on surface-modified glass
Applied Surface Science, 2019Abstract Antiglare and antireflection materials take considerable research attention due to its important role in transparent optical materials for various purposes. In this study, we employed layer-by-layer coating materials consist of SiO2 and TiZrO2 deposited on etched-surface glass substrate using dual electron beam evaporator system. The surface
Chairul Hudaya +4 more
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New preparation method for surface-modified inorganic layered compounds
Journal of Materials Chemistry, 1996New surface-modified inorganic layered compounds have been prepared by the reaction of Zn(OH)2 with organic oxychlorides in which 71–98% of the OH groups reacted. Their layered structures are similar to those of the layered double hydroxides (LDHs). Although LDHs have cationic charges, the reaction products are uncharged. The interlayer spacings of the
Hideyuki Tagaya +5 more
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Large area ultraviolet photodetector on surface modified Si:GaN layers
Applied Surface Science, 2018Abstract Unique features of semiconductor based heterostructured photoelectric devices have drawn considerable attention in the recent past. In the present work, large area UV photodetector has been fabricated utilizing interesting Zinc oxide microstructures on etched Si:GaN layers.
Anitha R. +5 more
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Fatigue fracture of surface-modified layers in 18CrNiMo7-6 carburized steel
Engineering Failure Analysis, 2022Abstract A modified layer of a certain thickness is produced on the surface of 18CrNiMo7-6 alloy steel after carburizing and quenching that greatly affects the microstructure and fatigue properties of the material. In this work, the fatigue performance of each layer was studied.
Yue Zhang +4 more
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