Results 91 to 100 of about 226,462 (213)
Dental HypothesesIntroduction: We aimed to evaluate the surface hardness, roughness, and flexural strength of heat-cured polymethyl methacrylate (PMMA) resin after incorporating zirconium–hydroxyapatite (ZrO2–HA) particles at concentrations of 1, 2.5, and 5 wt.%. Methods:
Nihad Hasan Mohammed AlFuraiji +2 more
doaj +1 more source
DETERMINATION OF ELECTRODEPOSITION HARDNESS BY ANALYTICAL MODELING PART II - Ni-P/SiC COATINGS OBTAINED BY VARYING THE ELABORATION TIME- [PDF]
Fiabilitate şi Durabilitate, 2012 Buckle and Jönsson - Hogmark analytical models have been applied to determine the Ni-P/SiC composite electrodeposition hardness obtained by varying development time.
PASĂRE Minodora Maria, NICA BADEA Delia
doaj
Industrial Data, 2001 The hardness test is, together with the administration of one of the most used in the selection and quality control of materials ...
Santos De la Cruz, Eulogio +3 more
openaire +1 more source
Measuring hardness and final data base management. [PDF]
, 2009 Cílem této práce je představení základních zkoušek tvrdosti, se zaměře-ním na princip vyhodnocování těchto zkoušek. Bude vybráno několik typů dru-hů materiálu, na kterých budou provedeny vhodné zkoušky tvrdosti.The aim of this thesis is to present basic ...
Kopřiva, Antonín
core
EURO-ECOLE: Assessment of the Bioavailability and Potential Ecological Effects of Copper in European Surface Waters ; subproject 4: Evaluation and improvement of the ecological relevance of laboratory generated toxicity data [PDF]
, 2002 This report summarizes the acute and chronic toxicity of copper to algae, Daphnia and a few other freshwater species in standard laboratory test water and a wide range of natural surface waters (collected across Europe), with a wide range of pH ...
Bossuyt, Bart +2 more
core
Size Dependence of Nanoscale Wear of Silicon Carbide
, 2017 Nanoscale, single-asperity wear of single-crystal silicon carbide (sc-SiC) and nanocrystalline silicon carbide (nc-SiC) is investigated using single-crystal diamond nanoindenter tips and nanocrystalline diamond atomic force microscopy (AFM) tips under ...
Grierson, David +4 more
core +2 more sources
A Geomechanical Study of the Mississippian Boone Formation [PDF]
, 2013 The Boone Formation in northwest Arkansas is a chert-limestone sequence analogous to the subsurface Mississippi Lime reservoir in parts of Oklahoma and Kansas. It has low permeability and produces via horizontal drilling and hydraulic fracturing.
Buckland, Karen Nicole Mason
core +2 more sources
Long-term hot-hardness characteristics of five through-hardened bearing steels [PDF]
Five vacuum-melted bearing steels tempered to various room temperature hardnesses: AISI 52100 and the tool steels AISI M-1, AISI M-50, Halmo, and WB-49 were studied.
Anderson, N. E.
core +1 more source