Results 121 to 130 of about 5,244,411 (250)
Deep Underground Science and Engineering, EarlyView.This study proposes an eco‐friendly coal permeability enhancement technique by utilizing mine waste gangue as an abrasive in high‐pressure water jets. Integrating erosion experiments with smoothed particle hydrodynamics‐finite element method coupled simulations, the research study elucidates the flow field dynamics and a nonlinear solid–liquid ...
Qingxiang Wang +4 more
wiley +1 more source
Modeling proppant transport and settling in a 3D propagating fracture
Deep Underground Science and Engineering, EarlyView.A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert +2 more
wiley +1 more source
An improved zeroth order resonator using left handed metamaterial
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsIn this paper an improved version of zeroth order resonator (ZOR) using Left Handed Metamaterial (LHM) is reported, and its performance is compared with the earlier published ZOR.
Dileep Kumar Upadhyay, Srikanta Pal
doaj +1 more source
International Journal of Eating Disorders, EarlyView.ABSTRACT Objective This study aimed to evaluate the feasibility of implementing 10‐session group cognitive behavioural therapy (CBT‐Tg) in routine outpatient eating disorder care and to descriptively examine outcomes of CBT‐Tg and individual CBT‐T (CBT‐Ti). Method Using a naturalistic, non‐randomised, mixed‐methods design, this implementation study was
Laura Dixon +13 more
wiley +1 more source
Dual-Frequency dual-polarised microstrip antenna fed by an inclined slot
, 2012 [[abstract]]This paper presents the design of a single-feed microstrip antenna with dual-frequency and dual-polarization operations. Two fundamental modes, TM01 and TM10, are excited in a single long rectangular patch through an inclined slot to achieve ...
Row, Jeen-Sheen
core
Antenna Study and Design for Ultra Wideband Communication Applications [PDF]
, 2006 PhDSince the release by the Federal Communications Commission (FCC) of a bandwidth of 7.5GHz (from 3.1GHz to 10.6GHz) for ultra wideband (UWB) wireless communications, UWB is rapidly advancing as a high data rate wireless communication technology.
Liang, Jianxin
core
EcoEnergy, EarlyView.We report a 30 × 38 mm2 flexible thermoelectric device based on vertically aligned p/n Bi2Te3 thin films with high power factors of 31.0 and 20.3 μW cm−1 K−2. An optimized device geometry achieves a high normalized power density of 3.5 μW cm−2 K−2 through efficient thermal management, while maintaining excellent stability and modular scalability ...
Qingyi Liu +5 more
wiley +1 more source
Biotic and abiotic drivers of ecosystem functioning differ between a temperate and a tropical region
Ecography, EarlyView.Any single ecosystem will provide many ecosystem functions. Yet, we lack large‐scale, systematic studies of how abiotic factors can directly or indirectly – via effects on biodiversity – drive ecosystem functioning. In this study, we assessed the impact of climate, landscape and biotic community on ecosystem functioning in the temperate and tropical ...
Laura J. A. van Dijk +14 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A one‐step gas‐phase synthesis directly assembles amorphous Si nanoparticles with few‐layer graphene heterostructures via in‐flight mixing. Compositions with only 15 wt.% FLG deliver ~2800 mAh g−1 (Si + FLG) at 0.05 C and retain ~1400 mAh g−1 after 100 cycles at a high cycling rate of 1 C, enabled by a percolated, strain‐buffering graphene network that
Muhammad Ali +5 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Perovskite/silicon tandem solar cells offer efficiencies beyond 30%, yet conventional architectures face trade‐offs between optical performance and current matching. Three‐terminal tandems employing silicon back‐contact bottom cells eliminate the current‐matching constraint while minimizing optical losses, offering superior energy yield under real ...
Yunhao Fan +4 more
wiley +1 more source