Results 131 to 140 of about 182,044 (286)

Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review

open access: yesSmartBot, EarlyView.
Small‐body sampling robots are exploration systems that perform contact, sampling, and stable operations on microgravity bodies such as asteroids and comets. The authors review representative robot architectures and key technologies, focusing on the mechanisms, evolution, and coupling of sampling, mobility, and anchoring.
Yurui Shen   +7 more
wiley   +1 more source

High‐Pressure Carbonaceous Phases as Minerals

open access: yesGeophysical Monograph Series, Page 11-23., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley  

+1 more source

Characterization of explosion propagation of coal dust deposited by gas explosion convolutions in closed pipelines

open access: yesMeitan xuebao
To explore the propagation characteristics of gas explosion-induced coal dust detonations in enclosed pipelines, a custom-developed experimental system was employed for gas explosions involving accumulated coal dust.
Bingyou JIANG   +6 more
doaj   +1 more source

Appalachian Coalfield Delegation Position Paper on Sustainable Energy [PDF]

open access: yes, 2007
Appalachian grassroots groups(with support provided by the DataCenter) release a scathing report on the impact of coal mining to the United Nations Commission on Sustainable Development. The Delegation created an historic moment with its powerful stories
Harvard Ayers   +6 more
core  

Evaluating Plasma Torches as a Low‐Decarburization Preheating Method for MgO–C Refractory Linings

open access: yessteel research international, EarlyView.
This study evaluates direct current (DC) plasma torches using nitrogen as an alternative preheating method for magnesia‐carbon (MgO–C) refractory‐lined ladles. Full‐scale trials at 0.7 and 1.5 MW are compared to conventional gas burner. Plasma‐heated samples show lower decarburization and improved surface integrity due to partial sintering and reduced ...
Marcus Holmström   +3 more
wiley   +1 more source

Study on the enhancing wetting mechanism and application effect of compound dust suppressants

open access: yesMeikuang Anquan
In order to improve the effect of low-permeability coal bed water injection wetting and dust suppression, the compound dust suppressant material of “surfactant + inorganic salt additives + acid corrosive agent” was selected through the experiments of ...
Xiaobin WANG   +5 more
doaj   +1 more source

Eco-Friendly Sustainable Concrete and Mortar Using Coal Dust Waste. [PDF]

open access: yesMaterials (Basel), 2023
Shcherban' EM   +8 more
europepmc   +1 more source

English for Study and Work: Coursebook in 4 books. Book 2 Obtaining and Processing Information for Specific Purposes [PDF]

open access: yes, 2015
Подано всі види діяльності студентів з вивчення англійської мови, спрямовані на розвиток мовної поведінки, необхідної для ефективного спілкування в академічному та професійному середовищах.
Зуенок, И. И.   +15 more
core  

The Application of Hydrochar Composite Briquettes for Sustainable Slag Foaming in the Electric Arc Furnace Process

open access: yessteel research international, EarlyView.
Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu   +3 more
wiley   +1 more source

Population-based Research in South Wales: The MRC Pneumoconiosis Research Unit and the MRC Epidemiology Unit [PDF]

open access: yes, 2002
©The Trustee of the Wellcome Trust, London, 2002. First published by the Wellcome Trust Centre for the History of Medicine at UCL, 2002. All volumes are freely available online at: www.history.qmul.ac.uk/research/modbiomed/wellcome_witnesses/Annotated ...
Ness, AR, Reynolds, LA, Tansey, EM
core  

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