Results 151 to 160 of about 131,366 (311)

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

Effect of Ammonium Polyphosphate/Silicate Content on the Postfire Mechanics of Epoxy Glass‐Fiber Composites Using Facile Chocolate Bar‐Inspired Structures

open access: yesFire and Materials, Volume 49, Issue 3, Page 329-346, April 2025.
ABSTRACT This study investigates the postfire mechanical properties of epoxy glass‐fiber reinforced composites (EP GFRCs) using increasing concentrations of ammonium polyphosphate (APP) and inorganic silicate (InSi) to modify the char and fire residue.
Sruthi Sunder   +5 more
wiley   +1 more source

Mechanical Behaviour of Vacuum‐Infused GFRP Composites at Elevated Temperatures—Influence of Fibre Architecture

open access: yesFire and Materials, EarlyView.
ABSTRACT This study addresses the influence of fibre architecture on the mechanical properties of vacuum‐infused glass fibre reinforced polymer (GFRP) composites at elevated temperatures (ET). Laminates with three different fibre configurations—unidirectional (UD), bidirectional 0°/90° cross‐ply (BD), and ±45° off‐axis angle‐ply (OA) – were tested in ...
Eloísa Castilho   +4 more
wiley   +1 more source

Curvature and Microenvironment Regulation Enable Robust Seawater Electrochemical Hydrogen Peroxide Synthesis for On‐Site Marine Aquaculture

open access: yesInterdisciplinary Materials, EarlyView.
This work designs pentagon‐defect‐enriched interconnected spherical carbon (PD/IS‐C) via curvature and microenvironment co‐engineering for seawater H2O2 electrosynthesis. Curvature modulates electronic structure to boost reactivity, while local alkaline microenvironment repels Cl− for enhanced stability, endowing PD/IS‐C with exceptional catalytic ...
Chang Zhang   +11 more
wiley   +1 more source

Superior through‐plane thermal conductivity in carbon fibers/spherical graphene/epoxy laminated composites for low‐altitude aircrafts

open access: yesInfoMat, EarlyView.
To address the low through‐plane thermal conductivity (λ⊥) of carbon fiber/epoxy composites, which poses thermal management challenges in the expanding low‐altitude economy, we incorporated spherical thermally reduced graphene (s‐TRG) as a bridging filler. This architectural design achieved a λ⊥ of 2.73 W m–1 K–1 at 10 wt% loading.
Shengyuan Gao   +5 more
wiley   +1 more source

3D‐Printed Models in Oral Surgery Simulation Training: A Scoping Review

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Background Advancements in three‐dimensional (3D) printing have introduced innovative tools for medical and dental education. In dental surgery, 3D‐printed simulation models offer valuable presurgical training. This review explores the scope, study types, key findings, limitations, and future research needs to enhance their application in ...
Shahrzad Rahimizadeh Nahavandi   +5 more
wiley   +1 more source

Prevalence and Burden of Somatic Symptom Disorder in Atopic Dermatitis and Chronic Pruritus—The Persistent Somatic Symptoms Across Diseases: Pruritus (SOMA.PRU) Study

open access: yesJEADV Clinical Practice, EarlyView.
In adults with atopic dermatitis and chronic pruritus, the mental comorbidity of Somatic Symptom Disorder is associated with higher average and worst pruritus intensity, higher psychological distress and lower quality of life. Additionally, there were nonsignificant changes in cutaneous nerve fiber densities in skin biopsies.
Stefan M. Kahnert   +13 more
wiley   +1 more source

Approach to Nail Pitting in Pediatric and Adolescent Patients: A Dermatology Perspective

open access: yesJEADV Clinical Practice, EarlyView.
ABSTRACT This narrative review aims to discuss the etiologies of nail pitting in pediatric and adolescent patients, while providing a framework for further evaluation of possible underlying systemic conditions and their clinical findings from a dermatologic standpoint.
Elizabeth Botto   +3 more
wiley   +1 more source

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