Results 221 to 230 of about 7,221,304 (242)

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

Application, Challenges, and Prospects of Non‐Thermal Processing Technologies for Seaweed Protein Extraction—A Review

Food Chemistry International, EarlyView.
This review highlights non‐thermal extraction technologies for seaweed proteins, emphasizing their mechanisms, impacts on protein structure and functionality, and sustainability potential. Key limitations related to species dependence, extract complexity, and scale‐up are discussed to guide future industrial and biorefinery applications.
Rahat Mahmud, Md Fuad Al Hasan, Shuvojit Roy, Tanvir Ahmed   +3 more
wiley   +1 more source

iFR(instantaneous wave-free ratio)(用語解説)

Journal of JCS Cardiologists, 2015
openaire   +2 more sources

Implantable electrochemical sensors for continuous blood monitoring

FlexMat, EarlyView.
Implantable electrochemical sensors enable direct, in situ, and continuous blood monitoring, shifting diagnosis from population‐based averages to dynamic, individualized analysis. This review systematically examines the influence of the unique blood properties on sensor design.
Kuangyi Zou, Yuanzhen Wang, Haidong Wang, Ye Zhang   +3 more
wiley   +1 more source

Monitoring and assessment for obstructive sleep apnea

FlexMat, EarlyView.
This review systematically classifies Obstructive Sleep Apnea (OSA) monitoring indicators into three categories: physical, biochemical, and electrophysiological indicators, and lists several methods for each category. Abstract Obstructive sleep apnea (OSA) is a common chronic sleep‐disordered breathing disease characterized by recurrent upper airway ...
Yaowen Xu, Feifei Lin, Shujiao Chen, Zhen You, Shujing Zhu, Weiwei Zhao, Qiang Zhao   +6 more
wiley   +1 more source

The inter-study reproducibility of instantaneous wave-free ratio and angiography coregistration [PDF]

Journal of Cardiology, 2020
Coregistration system of instantaneous wave-free ratio (iFR) pullback and angiography has been developed to enhance benefits of physiology oriented percutaneous coronary intervention (PCI), but its reproducibility has not yet been fully assessed.In 51 coronary arteries from 39 patients with stable coronary artery disease, iFR angio-coregistrations were
Yoshiki Matsuo, Atsushi Tanaka, Daisuke Higashioka   +2 more
exaly   +3 more sources

First-in-Man Percutaneous Coronary Intervention Using Instantaneous Wave-Free Ratio Roadmap Functionality With Instantaneous Wave-Free Ratio Scout Pullback

JACC: Cardiovascular Interventions, 2018
A 54-year-old male patient presented with a symptomatic bifurcation lesion of 75% stenosis in LAD ([Figure 1A][1]). Physiological evaluation was performed using instantaneous wave-free ratio (iFR) roadmap (Philips Healthcare, Best, the Netherlands) functionality [(1)][2].
Hideyuki Takimura
exaly   +3 more sources

Adverse Plaque Characteristics Relate More Strongly With Hyperemic Fractional Flow Reserve and Instantaneous Wave-Free Ratio Than With Resting Instantaneous Wave-Free Ratio [PDF]

JACC: Cardiovascular Imaging, 2020
The current substudy of the PACIFIC (Prospective Comparison of Cardiac PET/CT, SPECT/CT Perfusion Imaging and CT Coronary Angiography With Invasive Coronary Angiography) trial explores the impact of computed tomography (CT)-derived unfavorable plaque features on both hyperemic and non-hyperemic flow indices.Next to lesion severity, plaque vulnerability
Justine Davies, Paul Knaapen, James Min   +2 more
exaly   +7 more sources

The impact of tissue Doppler index E/e′ ratio on instantaneous wave-free ratio

Journal of Cardiology, 2018
The instantaneous wave-free ratio (iFR) is a vasodilator-free, invasive pressure wire index of the functional severity of coronary stenosis and is calculated under resting conditions. In a recent study, iFR was found to be more closely linked to coronary flow reserve (CFR) than fractional flow reserve (FFR).
Yuichiro Minami, Masashi Nakao, Kentaro Jujo   +2 more
exaly   +3 more sources

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Instantaneous Wave-Free Ratio Assessment

2016
Instantaneous wave free ratio (iFR) may be a viable alternative to FFR. iFR is a novel measurement of the hemodynamic relevance of coronary lesions which doesn’t require the use of hyperemic agents.
openaire   +1 more source