Results 111 to 120 of about 1,717,596 (221)

Axial and Biaxial Fatigue Behavior of 6061‐T651 Cold Metal Transfer Welded Joints

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Lightweight aluminum structures in transportation systems are increasingly exposed to complex service loading, yet the fatigue performance of welded joints is still predominantly assessed using uniaxial data. In this work, the axial and biaxial fatigue behavior of 6061‐T651 aluminum alloy joints produced by cold metal transfer (CMT) welding is
R. Serrano, R. R. Ambriz, G. Ayoub
wiley   +1 more source

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

Accelerating Platform User Growth: Pinduoduo's Multi‐Motivational Selfish Referral Strategy

open access: yesInformation Systems Journal, EarlyView.
ABSTRACT Referral strategies, whereby existing platform users recruit new users and thereby strengthen same‐side network effects, have long been central to digital platforms' efforts to grow the installed user base. Current referral strategies often require the referee to complete a transaction as a prerequisite for the referrer to receive the reward ...
Runyu Shi   +2 more
wiley   +1 more source

Exploring the Genetic Variation of Fleece and Crutch Shedding in Sheep, Recorded at Different Times Within and Across Age Classes

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT The global value of wool from coarse woolled sheep continues to decline, prompting producers to seek alternatives that reduce or eliminate the need for shearing. Several sheep breeds naturally shed their fleece in response to photoperiod, and these breeds are being crossed with populations that have high genetic merit for traits such as ...
Erin G. Smith   +4 more
wiley   +1 more source

Determination and Verification of Parameters for the Fractional Order Hyperbolic Model of Triaxial Shear for Frozen Calcareous Clay

open access: yes工程科学与技术
Calcareous clay strata present significant engineering geological challenges, including low freezing temperatures, substantial post-freezing expansion, high susceptibility to disintegration in water, and low strength.
YAO Zhaoming, TANG Haidong, LAI Longhui
doaj  

MINDING THE GAP: A METHODOLOGICAL AND CHRONOLOGICAL REASSESSMENT OF EASTERN MEDITERRANEAN PURPLE‐DYE PRODUCTION IN THE BRONZE AND IRON AGES

open access: yesOxford Journal of Archaeology, EarlyView.
Summary Purple dye was an iconic status symbol in the ancient Mediterranean, yet tracing the expansion and shift of production from the Aegean to the Levant encounters substantial methodological difficulties. Using Tel Shiqmona – a unique industrial centre with a continuous Iron Age sequence – as an archaeological benchmark, this study defines detailed
Golan Shalvi
wiley   +1 more source

Vascular and skeletal muscle oxidative capacity responses to continuous double and single leg cycling

open access: yesExperimental Physiology, EarlyView.
Abstract The purpose of this work was to determine endothelial, microvascular, skeletal muscle oxidative capacity (SMOC) and cardiorespiratory responses to an acute bout of continuous single leg cycling (SLC) and double leg cycling (DLC). Ten recreationally active men and women volunteered to participate in this investigation and reported to the ...
Edward Z. Pelka   +2 more
wiley   +1 more source

The effects of uninterrupted and interrupted sitting on blood pressure and arterial stiffness in patients with established coronary heart disease

open access: yesExperimental Physiology, EarlyView.
Abstract Sedentary behaviour is an independent risk factor for cardiovascular disease. In healthy adults, prolonged uninterrupted sitting acutely increases blood pressure (BP) and aortic stiffness; however, these effects can be mitigated with light physical activity interruptions.
Simon Fryer   +7 more
wiley   +1 more source

Plant‐protein supplementation improves thermoregulatory responses and ameliorates markers of intestinal damage during exercise in the heat

open access: yesExperimental Physiology, EarlyView.
Abstract Exercise in the heat often causes gastrointestinal (GI) disturbances, which can impair performance. Single amino acid supplementation can attenuate gut damage and enhance exercise tolerance; however, the effectiveness of innate amino acid blends from plant‐based proteins remains underexplored.
Robyn Aitkenhead   +4 more
wiley   +1 more source

Comparison of exercise training and repeated hot water immersion on vascular function in overweight older adults

open access: yesExperimental Physiology, EarlyView.
Abstract Recent studies suggest that heat exposure may benefit cardiovascular health, but in overweight and obese older adults, the chronic effects of heat therapy on artery function are still uncertain. We aimed to compare the effects of 12 weeks (3×/week, 40 min) of aerobic exercise (EXE) to hot water immersion (HWI) and an inactive control group ...
Juliene G. Costa   +6 more
wiley   +1 more source

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