Results 41 to 50 of about 24,276 (294)

Insulin Mimetic Effect of Tungsten Compounds on Isolated Rat Adipocytes

, 2010
Investigations of effective, orally active, and safe antidiabetic metallopharmaceuticals have been carried out during the last two decades. It has been reported that tungsten compounds mimic the action of insulin in intact cell systems.
Topić, Aleksandra, Uskoković-Marković, Snežana, Milenković, Marina, Božić, Dragana   +3 more
core   +1 more source

Sintering with Sodium Carbonate and Leaching of Wolframite Cakes

Applied Sciences
Focuses on the processing of tungsten raw materials through various operations, including sintering, leaching, purification, and the production of technical tungstic acid.
Bolotpay Baimbetov, Yeleussiz Tazhiyev, Akmaral Yeleuliyeva, Gulnara Moldabayeva, Adelya Dauletbakova, Yelena Yakob, Akbota Taimassova   +6 more
doaj   +1 more source

Synthesis and ammonolysis of nickel and cobalt tungstates and their characterisation

Journal of Saudi Chemical Society, 2016
The synthesis and characterization of NiW and CoW compounds are herein reported. The NiWO4 and CoWO4 samples, successfully synthesised by the hydrothermal method, were treated under NH3 to obtain the metal nitride.
J.L. Rico, M. Albiter, J. Espino, J.S.J. Hargreaves, M. Ostroumov, L.I. Salcedo, K. Wilson   +6 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Cerium Oxide-Tungsten Oxide Core-Shell Nanowire-Based Microsensors Sensitive to Acetone

Biosensors, 2018
Gas sensitive cerium oxide-tungsten oxide core-shell nanowires are synthesized and integrated directly into micromachined platforms via aerosol assisted chemical vapor deposition. Tests to various volatile organic compounds (acetone, ethanol, and toluene)
Milena Tomić, Milena Šetka, Ondřej Chmela, Isabel Gràcia, Eduard Figueras, Carles Cané, Stella Vallejos   +6 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Soluble tungsten compounds. Determination in workplace air

, 2021
Wolfram jest metalem przejściowym, który występuje w skorupie ziemskiej w postaci minerałów, z których po wydobyciu jest ekstrahowany. Brakuje danych na temat chronicznych efektów kontaktu z wolframem.
Wasilewski, Paweł
core  

The structure and hardness of the highest boride of tungsten, a borophene-based compound

Scientific Reports, 2017
Two-dimensional systems have strengthened their position as a key materials for novel applications. Very recently, boron joined the distinguished group of elements confirmed to possess 2D allotropes, named borophenes.
Nevill Gonzalez Szwacki
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Aspects of structural and electronic disorder in network materials: approaches to simulation

, 2007
Disorder in solids is one of the critical problems facing exponents of simulation-based studies in the mineral sciences. This thesis presents some novel techniques which can be used to probe the structure and dynamics of such systems under simulation.
Walkingshaw, Andrew D
core   +1 more source