Results 121 to 130 of about 159,695 (300)

Research on Optimal Width of Coal Pillars in Both Sides of Abandoned Mining Areas and Tunnel Control Technology

open access: yesEnergy Science &Engineering, EarlyView.
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin   +4 more
wiley   +1 more source

A Roof of One\u27s Own: Widow Walking in the Anthropocene [PDF]

open access: yes, 2018
A nonfiction work that explores widow\u27s walks in a time of climate change on the coasts.
Mullen, Anna C
core   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

open access: yesEnergy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen   +6 more
wiley   +1 more source

Application of Confined Blasting in Water-Filled Deep Holes to Control Strong Rock Pressure in Hard Rock Mines

open access: yesEnergies, 2017
In extra-thick coal seams, mining operations can lead to large-scale disturbances, complex overburden structures, and frequent and strong strata behavior in the stope, which are serious threats to mine safety. This study analyzed the overburden structure
Jingxuan Yang, Changyou Liu, Bin Yu
doaj   +1 more source

Analysis and Optimization of Early‐Warning Indicators for Impact Critical Stress in Deep Soft Coal Seams

open access: yesEnergy Science &Engineering, EarlyView.
This study determines the impact critical stress early‐warning indicators for deep soft coal seams: 18 MPa (shallow holes), 20 MPa (deep holes), and 3 MPa/d daily stress change rate, via theoretical, experimental and simulation methods. ABSTRACT The accurate determination of early‐warning indicators for critical impact stress in deep soft coal seams is
Haichen Yin   +8 more
wiley   +1 more source

Cheia de axé (full of axé): Spirituality, resistance, and repair in Pernambuco's Afro‐Brazilian traditional communities

open access: yesFeminist Anthropology, EarlyView.
Abstract This article explores how Afro‐Brazilian communities in Pernambuco respond to state‐led industrial development through culturally rooted practices of resistance and repair. Drawing on archival and ethnographic research in the coastal municipalities of Cabo de Santo Agostinho and Ipojuca, this study traces the effects of Brazil's large‐scale ...
Shelly Annette Biesel
wiley   +1 more source

The Baptist Church in Warren: Rehabilitation and Preservation Report [PDF]

open access: yes, 2013
The Baptist Church in Warren is located in the Warren Waterfront Historic National Register District. Warren also has a Voluntary Historic District. Both the National Register Nomination and the Voluntary Historic District have regulations which pertain ...
Bambara, Lauren   +4 more
core   +1 more source

Probiotic consumption reduces alveolar bone loss and kidney damage in pregnant rats with experimental periodontitis

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Bifidobacterium animalis subsp. lactis HN019 (B. lactis HN019) is a probiotic bacterial strain with immunomodulatory properties. Its benefits have been observed in healthy and systemically compromised animals with periodontitis (PD). Our objective was to investigate the local and systemic effects of the systemic administration of B.
Átila V. V. Nobre   +10 more
wiley   +1 more source

Three-dimensional collaborative hydraulic fracturing control for thick hard roofs: mechanism, simulation, and field application in Yadian Coal Mine

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
Thick hard roof with high strength, large breaking step and strong mine pressure is one of the major problems in coal mine safety production. Aiming at the problems of large thickness, high strength and difficult collapse of the roof slab of Yadian Coal ...
Shuo Ren   +6 more
doaj   +1 more source

Immunotherapy‐Related Cutaneous Toxicities in Melanoma: A Dermoscopic Perspective

open access: yesJEADV Clinical Practice, EarlyView.
Dermoscopy serves as a valuable tool in the everyday dermatological and oncological practice for melanoma patients, allowing for the prompt identification of immune‐related cutaneous toxicities and guiding clinicians toward appropriate therapeutic decisions.
Grażyna Kamińska‐Winciorek   +3 more
wiley   +1 more source

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