Results 71 to 80 of about 333,594 (357)

Sergey Vladimirovich Kuz’minykh 65 years

open access: yesПоволжская археология, 2016
Sergey V. Kuz’minykh, a well-known archeologist in 2016, 65 years old. His monograph “The Volga-Kama Metallurgy in the early Iron Age (Copper and Bronze)” (1983) and his joint monograph with E.N.
Chizhevsky Anrdei A.,
doaj  

Restoration of the tribotechnical pairs in equipment of mining industry [PDF]

open access: yes, 2019
Purpose. Substantiation of the possibilities and development of technology for the restoration of the worn-out tribotechnical pairs of mining equipment by methods of hot radial stamping in powder metallurgy using technogenic waste. Methods.
Biloshytska, N   +2 more
core   +1 more source

Cr3+‐Activated Tunable Near‐Infrared Mechanoluminescence Materials for Potential Water Pollutant Monitoring

open access: yesAdvanced Functional Materials, EarlyView.
Four kinds of magnetite type NIR‐ML materials are synthesized by high‐temperature solid‐state reaction method. The continuous spectral tuning from a sharp R line (698 nm) to a broadband range (650–1000 nm) is realized based on composite engineering, concentration engineering, and lattice engineering strategies.
Xuesong Wang   +10 more
wiley   +1 more source

The archaeological site Gradište in Donji Dubič near Trstenik [PDF]

open access: yesBaština, 2019
The archaeological site Gradište is located East of the core area of Donji Dubič village, on the left side of the Dubička River, 15 km North of the municipality centre Trstenik. The late antique fortress was probably built in the second half of the third
Radisavljević Dejan S.
doaj  

Complementary Logic Driven by Dielectrophoretic Assembly of 2D Semiconductors

open access: yesAdvanced Functional Materials, EarlyView.
Scalable, parallel fabrication of complementary logic gates is demonstrated using electric‐field‐driven deterministic assembly of electrochemically exfoliated 2D n‐type MoS2 and p‐type WSe2 nanosheets. This strategy yields MoS2 and WSe2 transistors featuring average mobilities of 4.3 and 3.0 cm2 V−1 s−1, respectively, and on/off ratios of > 104 ...
Dongjoon Rhee   +10 more
wiley   +1 more source

MODERN PROBLEMS OF EXPORT AND IMPORT IN THE RUSSIAN METALLURGY IN CONDITIONS OF SANCTIONS

open access: yesВестник Северо-Кавказского федерального университета, 2022
The article considers the current state of Russia's steel industry from the point of view of export development and import substitution the industry. In recent years the metals market has a surplus, leading to lower prices. Happened at the same time, the
Yuliya Rudneva   +2 more
doaj  

Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn2+ Migration in Quasi‐Solid‐State Zinc‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The disordered growth of dendrites, corrosion, parasitic side reactions, slow de‐solvation kinetics, and inherent safety risks significantly hinder the practical deployment of conventional liquid electrolyte zinc‐ion batteries. In contrast, the novel PU‐EG+DMPA‐Zn polyurethane quasi‐solid‐state electrolyte, enriched with abundant polar functional ...
Ruiqi Liu   +10 more
wiley   +1 more source

Evaluation of Cyclic Behavior of Aircraft Turbine Disk Alloys [PDF]

open access: yes
An evaluation of the cyclic behavior of three aircraft engine turbine disk materials was conducted to compare their relative crack initiation and crack propagation resistance.
Popp, H. G., Shahani, V.
core   +1 more source

Recovering the lost gold of the developing world : bibliographic database [PDF]

open access: yes, 1999
This report contains a library of 181 references, including abstracts, prepared for Project R 7120 "Recovering the lost gold of the developing world" funded by the UK' s Department for International Development (DFID) under the Knowledge and Research (
Evans, E.J., Mitchell, C.J.
core  

Wafer‐Scale Synthesis of Mithrene and its Application in UV Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
A controlled tarnishing step on the silver surface precedes the solid‐vapor‐phase chemical transformation into silver phenylselenolate thin films. The approach yields crystals exceeding 1 µm with improved in‐plane orientation. Integration on graphene phototransistors demonstrates high photoresponsivity, positioning mithrene as a promising material for ...
Maryam Mohammadi   +8 more
wiley   +1 more source

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