Results 81 to 90 of about 121,747 (303)

RESEARCH ON THE IMPACT OF FRICTION COEFFICIENT TO SCALE IN COLD ROLL-BEATING FORMING

open access: yesJixie qiangdu, 2017
Scale of forming surface in cold roll-beating forming process is a major defect. Controlling scaly defects is an important method to improve forming surface quality.
FENG JingMin   +3 more
doaj  

The younger flagellum sets the beat for Chlamydomonas reinhardtii

open access: yeseLife
Eukaryotes swim with coordinated flagellar (ciliary) beating and steer by fine-tuning the coordination. The model organism for studying flagellate motility, Chlamydomonas reinhardtii, employs synchronous, breaststroke-like flagellar beating to swim, and ...
Da Wei   +3 more
doaj   +1 more source

Effect of Refining on Physical Properties and Paper Strength of Pinus massoniana and China Fir Cellulose Fibers

open access: yesBioResources, 2016
To obtain a suitable refining process for Pinus massoniana cellulose fibers (PMCF) and China fir cellulose fibers (CFCF), the effects of the beating gap and the pulp consistency on the physical properties and the morphology of the two cellulose fibers ...
Tingjie Chen   +6 more
doaj   +1 more source

Synchronization‐Dissipation in the Cardiorespiratory System

open access: yesAdvanced Science, EarlyView.
By modeling central nervous coupling and viscoelastic interactions in the cardiorespiratory system we show that synchronization produces a 10% gain in cardiac efficiency in humans. It is surmised that respiratory sinus arrhythmia improves cardiac pumping efficiency by reducing dynamic stress and power dissipation in the pulmonary vasculature.
Joshua R. Border   +3 more
wiley   +1 more source

Non heart-beating donors in England

open access: yesClinics, 2008
When transplantation started all organs were retrieved from patients immediately after cardio-respiratory arrest, i.e. from nonheart-beating donors. After the recognition that death resulted from irreversible damage to the brainstem, organ retrieval ...
Eleazar Chaib
doaj   +1 more source

Strategy of Triple‐Gradient in Binary Pixels for Flexible Pressure Sensing with High Sensitivity and Wide‐Range Linearity

open access: yesAdvanced Science, EarlyView.
A flexible pressure sensor with triple‐gradient design of conductivity, modulus, and dimension in binary micro‐dome pixels is proposed. Based on precisely‐designed CNT/PDMS matrix, the device exhibits a linear sensitivity of 974.1 kPa−1 across range up to 1.8 MPa (R2 > 0.99), offering an effective strategy for potential applications in healthcare ...
Yifan Liu   +9 more
wiley   +1 more source

Aplicación de celulosa nanofibrilada, en masa y superficie, a la pulpa mecánica de muela de piedra: Una sólida alternativa al tratamiento clásico de refinado

open access: yesMaderas: Ciencia y Tecnología
Se ha estudiado el efecto de distintos dosajes en masa de nanofibras de celulosa (CNF ), comprendidas entre un 0 y un 6%, sobre las propiedades físico-mecánicas del papel obtenido a partir de las fibras de pasta mecánica de muela de piedra (SGW).
Marc Delgado-Aguilar   +6 more
doaj  

Spatial clustering of domestic violence attitudes toward women in Ghana.

open access: yesPLOS Global Public Health
Violence against women is a global public health issue associated with increased morbidity and mortality. The United Nations defines violence against women as "any act of gender-based violence that results in, or is likely to result in, physical, sexual,
Cecilia Richardsen   +3 more
doaj   +1 more source

Quantification of Cardiomyocyte Beating Frequency Using Fourier Transform Analysis

open access: yesPhotonics, 2018
Pacemaker cardiomyocytes of the sinoatrial node (SAN) beat more rapidly than cells of the working myocardium. Beating in SAN cells responds to β-adrenergic and cholinergic signaling by speeding up or slowing, respectively.
Allison Reno   +4 more
doaj   +1 more source

A Dual‐Modal Wearable PPG Smartwatch with AI‐Enhanced Correction for High‐Accuracy and Continuous AF Burden Assessment

open access: yesAdvanced Science, EarlyView.
ABSTRACT Atrial fibrillation (AF) increases the risk of stroke and heart failure, yet accurate quantification of AF burden in daily life remains difficult. Although smartwatch photoplethysmography (PPG) supports continuous monitoring, complex rhythms and signal noise can impair burden estimation.
Song Zuo   +27 more
wiley   +1 more source

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