Results 11 to 20 of about 21,602 (221)

Control and protection of the Serbian airspace

open access: yesVojnotehnički Glasnik, 2012
From the state security aspect, the state airspace is a very sensitive part, since the state security can be easily compromised from it, both in wartime and peacetime conditions.
Vitomir A. Stanković   +1 more
doaj   +1 more source

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

open access: yesJournal of Asian Ceramic Societies, 2020
In this study, a zirconium nitride/chromium nitride nano-multilayer coating was deposited on AISI 304 specimen using cathodic arc evaporation-physical vapor deposition (CAE-PVD).
Parviz Mohamadian Samim   +3 more
doaj   +1 more source

How Environmentally Friendly Tribological Systems Influence the Efficiency of Axial Piston Machines

open access: yesTribology Online, 2010
Examinations have been carried out to determine suitable coatings and fluids for hydraulic displacement units. Based on investigations of the tribological system piston / bushing of an axial piston pump unit tests have been carried out with geometrically
Claus Enekes, Hubertus Murrenhoff
doaj   +1 more source

Impact of a Bright Nickel Interlayer on the Performance of Solar Absorber Nano Coatings Deposited by Electroplating on Copper Substrate [PDF]

open access: yesEngineering and Technology Journal, 2019
In this, work, a layer of bright nickel was deposited on the copper substrate using electroplating technique watts bath, before copper nanoparticles (CuNP) Evaporation via physically vapor deposition.
Mohammed Kadihm   +2 more
doaj   +1 more source

Beyond being innervated: the epidermis actively shapes sensory dendritic patterning [PDF]

open access: yesOpen Biology, 2019
Sensing environmental cues requires well-built neuronal circuits linked to the body surface. Sensory neurons generate dendrites to innervate surface epithelium, thereby making it the largest sensory organ in the body.
Wei-Kang Yang, Cheng-Ting Chien
doaj   +1 more source

Morphology and optical properties of CdS thin films prepared by Physical Vapor Deposition method

open access: yesФізика і хімія твердого тіла, 2022
The optical properties of cadmium sulfide thin films obtained by thermal evaporation in vacuum were studied. The stoichiometric compositions of the binary compound previously synthesized from high-purity powders of the initial components were used. Films
I.V. Vakaliuk   +4 more
doaj   +1 more source

Caracterización microestructural y estabilidad térmica de la aleación Mg-23 %wt Zr sintetizada mediante Deposición Física en Fase Vapor (PVD)W

open access: yesRevista de Metalurgia, 2003
El objetivo del trabajo es estudiar la microestructura y estabilidad térmica de la aleación Mg-2,3 %wt Zr, crecida mediante deposición física en fase vapor. Las principales técnicas experimentales empleadas en este estudio son la calorimetría diferencial
G. Garcés, P. Pérez, P. Adeva
doaj   +1 more source

Propiedades mecánicas de la aleación Mg-14Ti-1Al-0,9Mn(% masa) sintetizada mediante deposición física desde fase vapor (PVD)

open access: yesRevista de Metalurgia, 2001
Las propiedades mecánicas de la aleación Mg-14 %Ti-l % Al-0,9 % Mn obtenida mediante técnicas de PVD se han evaluado hasta una temperatura de 300 °C. La aleación presenta una microestructura monofásica con granos columnares típica de la zona 2 del modelo
G. Garcés   +3 more
doaj   +1 more source

Quality Assessment of Variable Reflectivity Laser Mirrors with High Laser –Induced Damage Threshold and Structural Analysis [PDF]

open access: yesJournal of Optoelectronical Nanostructures
: We report the results of an experimental study on the fabrication of a multilayer variable reflectivity laser mirror and the morphological analysis of optical thin film layers. In a design procedure, a series of variable reflectivity laser mirrors are
Hasan Ebadian   +2 more
doaj   +1 more source

Effects of Abrasive Particle Type, Load and Sliding Distance on Micro-Abrasion Resistance of High Speed Steel Coated with AlCrN or AlTiN

open access: yesMedžiagotyra, 2021
High Speed Steel (HSS) specimen surfaces were coated with AlCrN and AlTiN via Physical Vapor Deposition (PVD) method. Then, the wear performances of the film coatings so produced were investigated by using different abrasive types with different particle
Vedat Veli ÇAY
doaj   +1 more source

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