Results 51 to 60 of about 2,480,861 (247)

The effect of pressure pulsation on diffusion combustion [PDF]

, 2021
The paper presents the results of a study of diffusion combustion of gasoline in the presence of external pressure pulsations with small amplitude. It is found that external pressure pulsations lead to characteristic changes in the temperature field ...
Alexander S. Klimentiev, Mikhail V. Agafontsev, Egor L. Loboda, Agafontsev, Mikhail V., Klimentiev, A. S., Vladimir V. Reyno, Loboda, Egor L., Reyno, Vladimir V.   +7 more
core   +1 more source

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers, Yaqiao Wei, Dinesh K. Deelchand, Adam Berrington, Young Woo Park, Guita Banan, Michal Povazan, Jens T. Rosenberg, André J. W. van der Kouwe, Tetsuo Ashizawa, Khalaf O. Bushara, Chiadi U. Onyike, Sub H. Subramony, Jeremy D. Schmahmann, Brian J. Soher, Peter B. Barker, Thomas H. Mareci, Eva‐Maria Ratai, Lynn E. Eberly, Gülin Öz   +19 more
wiley   +1 more source

Numerical analysis of pressure pulsation in vertical submersible axial flow pump device under bidirectional operation

AIP Advances, 2022
In order to analyze the pressure pulsation characteristics of a single-conduit vertical submersible axial-flow pump device under bidirectional operation, the unsteady numerical simulation of the pump device was carried out based on computational fluid ...
Fan Yang, Pengcheng Chang, Chao Li, Qiangru Shen, Jun Qian, Jindong Li   +5 more
doaj   +1 more source

Boundary‐Dependent Sleep–Wake Dysregulation in Idiopathic Hypersomnia

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Idiopathic hypersomnia (IH) presents with excessive daytime sleepiness (EDS) despite apparently preserved nocturnal sleep, challenging traditional models of hypersomnolence based on sleep loss or fragmentation. We aimed to test the hypothesis that EDS in IH reflects excessive stabilization of the sleep state, consistent with ...
Samantha Mombelli, Karine Lacourse, Hélène Blais, Anne‐Sophie Deshaies‐Rugama, Cynthia Thompson, Alex Desautels, Jacques Montplaisir, Milan Nigam, Christophe Moderie, Boshra Khajehpiri, Catherine Duclos, Jean Marc Lina, Julie Carrier, Nadia Gosselin   +13 more
wiley   +1 more source

Facial Cosmetic Therapy Use Among Patients With Systemic Sclerosis: An Australian Cohort Study

Arthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) is associated with numerous facial manifestations for which patients may engage in cosmetic therapies. It is unclear how patients with SSc use these therapies. This study sought to characterize patient engagement and experiences with cosmetic therapies for SSc‐related and non‐SSc–related facial changes.
Zachary Warren, Diane Apostolopoulos, Gene‐Siew Ngian, Amanda M. Saracino, Laura Ross, Nava Ferdowsi, Jennifer Walker, Cindy Hall, Kim Griggs, Susanna Proudman, Wendy Stevens, Joanne Sahhar   +11 more
wiley   +1 more source

Characterization of Pressure Pulsation Propagation in a Pump‐Turbine Based on the Same‐Frequency Tracking Method

Energy Science & Engineering
Pressure pulsation is a key factor affecting the safe and stable operation of pump‐turbines. This article is based on same frequency‐tracking method on the pressure pulsation propagation characteristics of pump‐turbine during generation mode.
Yanpin Li, Pengcheng Hao, Zichao Zhang, Lihong Zhang, Huayang Hai, Hengxiang Zhang, Xikun Wang, Jiarui Wang, Zipu Zhao, Peijie Peng   +9 more
doaj   +1 more source

Pressure pulsation of Francis turbine under variable water head and load conditions

Guan'gai paishui xuebao
【Background】The growth in installed capacity of green energy has exerted growing operational pressure on the national power grid. Hydropower stations play a vital role in grid regulation.
Liu Dengmu, Zhou Ye, Wang Shangkun, Song Hao, Sun Longyue, Gao Zhongxin, Jiang Cuiwei, Lu Zhiyang, Li Shangqi, Li Xiaochao   +9 more
doaj   +1 more source

Experimental study of pressure pulsation in a large-scale hydropower plant with Francis turbine units and a common penstock

Energy Conversion and Management: X, 2022
As a limiting factor in power generation, especially in part-loads, turbulence is considered an important phenomenon in hydropower plants. In this study, the pressure pulsation measurements are done for Darian Hydropower Plant in Iran, which is composed ...
Reza Jamali, Ali Sohani, Khosro Hemmatpour, Mohammadali Behrang, Amin Ghobeity   +4 more
doaj   +1 more source

Microvascular Damage Is Associated With Carotid Wall Structural Changes in Systemic Sclerosis: A Capillaroscopy and Ultrasound‐Based Observational Study

Arthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) is characterized by cardiovascular risk excess not fully explained by traditional factors. Whether the severity of microvascular damage correlates with structural subclinical atherosclerosis remains unclear. We investigated the relationship between nailfold videocapillaroscopy (NVC) abnormalities and carotid ...
Eugenio Capparelli, Luca Clerici, Francesco Lapia, Giusy C. Moltisanti, Eleonora Zaccara, Greta Pellegrino, Daniela Bompane, Francesca Capelli, Letizia Ferrami, Laura Castelnovo, Antonio Tamburello, Maria Sole Chimenti, Paola Faggioli, Antonino Mazzone   +13 more
wiley   +1 more source

Efficiency analysis of bubble pulsation formed by high-voltage discharge in nonfree field water

Advances in Mechanical Engineering, 2016
Bubble pulsation is known to occur as a result of high-voltage discharge in water. Due to advantages such as long duration and significant bubble pulsation production, this technique is widely used in industrial production.
Dong Yan, Decun Bian, Jinchang Zhao, Zhiqiang Yin, Shaohua Jia, Jianfeng Feng   +5 more
doaj   +1 more source