Results 111 to 120 of about 451,301 (380)

Estimation of CO2-Equivalent Emission under the Copper Fire Refining Process

open access: yes, 2017
Non-ferrous metallurgy is one of the most energy-consuming and carbon-emissive sectors of industry. This is due to the fact that the volume of greenhouse gas (GHG) emissions is stipulated by energy consumption. Uralelectromed is a city-forming enterprise
Yu. N. Chesnokov   +4 more
semanticscholar   +1 more source

Visualizing Strain‐Coupled Cryogenic Phase Transitions and Defect Dynamics in Perovskite Quantum Dots Using In Situ STEM

open access: yesAdvanced Science, EarlyView.
Cryogenic cooling induces an orthorhombic‐to‐monoclinic phase transition in CsPbBr3 quantum dots, accompanied by pronounced strain localization at surfaces and interfaces. Multimodal in situ STEM directly visualize reversible defect healing during moderate cryogenic treatment and irreversible degradation upon prolonged exposure, revealing the intrinsic
Xinjuan Li   +10 more
wiley   +1 more source

Approach to automating numerical calculation of the state of heat transfer processes in closed devices [PDF]

open access: yesEPJ Web of Conferences
In recent decades, changes in temperature and humidity have been used in many fields of technology: chemical technology, metallurgy, oil refining, mechanical engineering, biology and space research. One of the important issues in space exploration is the
Gasimov Gasim   +2 more
doaj   +1 more source

Effects of Si and Mn contents on grain refinement microstructure and properties of Al–Cu alloys fabricated by powder metallurgy

open access: yesAIP Advances
We fabricated Al–Cu alloys by powder metallurgy technology with high-purity Al powder, Cu powder, Si powder, and Mn as raw materials. The impact of Si doping on the microstructure and material properties of the Al–7.5Cu alloy was investigated. Subsequently, the impacts of the Mn content on the microstructure evolution and properties of the Al–7.5Cu–xSi
Qingfeng Yang   +7 more
openaire   +1 more source

Energy Policy and Regional Inequalities in the Brazilian Economy [PDF]

open access: yes, 2010
The objective of this paper is to evaluate the long-run regional impacts of tariff policy of the Brazilian electric power sector. The structural reforms carried on this sector determined the emergence of two different spatial distribution trends of the ...
Haddad, Eduardo   +2 more
core  

Characterization of lead-recycling facility emissions at various workplaces: Major insights for sanitary risks assessment [PDF]

open access: yes, 2011
Most available studies on lead smelter emissions deal with the environmental impact of outdoor particles, but only a few focus on air quality at workplaces.
Dumat, Camille   +5 more
core   +4 more sources

A Tangentially Sensitive Tactile Sensor Reveals the Stick‐Slip Mechanism and Enhances Robotic Tactile Sensing

open access: yesAdvanced Science, EarlyView.
An ultralight, multilayer anisotropic tactile sensor—an artificial Pacinian corpuscle—exhibits ultrahigh tangential sensitivity (1022 kPa−1) and spatiotemporal sensing. It discriminates static, sliding, and rolling contacts, detects incipient stick–slip via high‑frequency signatures, and enhances robotic touch (100%/98.18% accuracy for active/passive ...
Jinghui Wang   +12 more
wiley   +1 more source

Effect of Refining Slag Ingredient on Content and Morphology of Inclusions in Sulfur Free Cutting Steel

open access: yesTeshugang, 2016
The effect of control of 50 t LF refining slag (FeO) , (MnO),/R,( CaO)/[(Al2O3) (SiO2) ] and (S) on [0] index, sulfur partition ratio and Mn/S has been tested and analyzed.
戴永刚
doaj  

Nickel Laterite Smelting Processes and Some Examples of Recent Possible Modifications to the Conventional Route

open access: yesMetals, 2019
The treatment of laterites has been a research hotspot in extractive metallurgy over the past decades. Industrially, the pyrometallurgical treatment of laterites is mostly accomplished with a well-established method, namely, the rotary kiln− ...
Ender Keskinkilic
doaj   +1 more source

Evaluation of influence of briquetted synthetic slags on slag regime and process of steel desulphurization [PDF]

open access: yes, 2014
This paper presents the industrial results of evaluation of efficiency of synthetic slags during the treatment of steel at the equipment of the secondary metallurgy under conditions of the steel plant VÍTKOVICE HEAVY MACHINERY a.s.
Bažan, Jiří   +6 more
core   +1 more source

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