Results 131 to 140 of about 44,276 (294)

Effect of fluid forces on rotor stability of centrifugal compressors and pumps [PDF]

A simple two dimensional model for calculating the rotordynamic effects of the impeller force in centrifugal compressors and pumps is presented. It is based on potential flow theory with singularities.
Colding-Jorgensen, J.
core   +1 more source

Recent advances in boosting interfacial bubble dynamics with external fields

Droplet, EarlyView.
External physical fields, including acoustic, magnetic, thermal, mechanical, and optical stimuli, accelerate the entire bubble‐dynamics sequence of nucleation, growth, and detachment. Abstract The efficiency of industrial electrocatalytic reactions depends not only on generating gaseous products but also on their detachment from the catalyst surface ...
Wenlu Xie, Yanwei Zhang, Yi Liu, Yiming Wei, Jing‐Li Luo, Chenyu Xu   +5 more
wiley   +1 more source

Linear Instability of Symmetric Logarithmic Spiral Vortex Sheets

Journal of Mathematical Fluid Mechanics
We consider Alexander spirals with $M\geq 3$ branches, that is symmetric logarithmic spiral vortex sheets. We show that such vortex sheets are linearly unstable in the $L^\infty$ (Kelvin-Helmholtz) sense, as solutions to the Birkhoff-Rott equation.
Tomasz Cieślak, Piotr Kokocki, Wojciech S. Ożański   +2 more
openaire   +3 more sources

Design of HAWT Rotor for Non‐Uniform Inflow Conditions: A Theoretical and Experimental Approach for Shear Flow

Energy Science &Engineering, EarlyView.
This paper aims to provide a robust design approach for HAWTs operating in shear flow. This study fills a critical research gap by integrating BEM and vortex theories for blade design in non‐homogeneous inflow conditions. The authors of the paper made an effort to develop and test an experimentally unsophisticated model of a turbine working in shear ...
Agnieszka Dorota Woźniak, Piotr Strzelczyk, Taeseong Kim   +2 more
wiley   +1 more source

Curcuminoids amplify host innate antiviral immunity via the CRYAB‐RBM26 axis in viral infection

iMeta, EarlyView.
DMC/CUR antagonize viral hijacking of host nucleic acid resources and finely regulate the induction and effector phases of the type I interferon (IFN‐I) pathway through the CRYAB‐RBM26 axis. This molecular axis serves as a key downstream regulator for DMC/CUR activation of the IFN‐I pathway.
Tingting Chen, Xiang Wang, Guangyuan Zhang, Lu Wang, Junhao Wan, Lirong Tan, Xinyue Fan, Siqin Meng, Zhixing Jin, Yuzhang Liang, Haoze Li, Ziyuan Wan, Xiaotong Xu, Yan Zhang, Li Qin, Anna Malashicheva, Yu Du, Guangchao Zang, Guixue Wang   +18 more
wiley   +1 more source

T2‐Weighted T1 Mapping and Automated Segmentation of CSF: Assessment of Solute Gradients in the Healthy Brain

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Cerebrospinal fluid (CSF) serves as a medium for nutrient delivery and waste clearance. The T1 relaxation rate, R1, can be used to measure the concentration of intrinsic solutes and extrinsic contrast agents. Purpose To implement a method for R1 mapping and segmentation of CSF and to use this method to explore how R1 of CSF relates ...
Tryggve Holck Storås, Sofie Lysholm Lian, Ingrid Mossige, Jørgen Riseth, Siri Fløgstad Svensson, Grethe Løvland, Geir Ringstad, Kent‐André Mardal, Kyrre Eeg Emblem, Kaja Nordengen   +9 more
wiley   +1 more source

Three-dimensional generalized logarithmic spirals

, 2016
The family of generalized logarithmic spirals including a control parameter is extended to the three-dimensional case. The in-plane motion is decoupled from the out-of-plane motion in such a way that the integrals of motion found in the planar problem are still preserved in the three-dimensional case. Designing a low-thrust orbit transfer decomposes in
Roa Vicens, Javier, Peláez Álvarez, Jesús   +1 more
openaire   +1 more source

Towards Clinical Translation of Intravoxel Incoherent Motion MRI: Acquisition and Analysis Consensus Recommendations

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Intravoxel incoherent motion (IVIM) MRI allows for simultaneous assessment of tissue microcirculation (perfusion) and diffusion of water. In single‐center studies, IVIM has shown great potential for diagnosis, treatment outcome prediction, and treatment monitoring for many different diseases and organs.
Eric E. Sigmund, Susanne S. Rauh, Mami Iima, Christian Federau, Diego Hernando, Oscar Jalnefjord, Jacobus F. A. Jansen, Jonas Jasse, Neil Peter Jerome, Misha P. T. Kaandorp, Sila Kurugol, Frederik B. Laun, Mira M. Liu, Alexandra Ljimani, Thoralf Niendorf, David A. Reiter, Mohammed Salman Shazeeb, Amita Shukla‐Dave, Julia Stabinska, Andreas Wetscherek, Peter T. While, Dan Wu, Denis Le Bihan, Oliver J. Gurney‐Champion   +23 more
wiley   +1 more source

Selection of Software Development Methodology by Employing a Multi-Criteria Decision-Making Approach Based on Logarithmic Bipolar Complex Fuzzy Aggregation Operators

IEEE Access
Numerous factors, including project complexity, team size, customer collaboration, and development pace, must be taken into consideration while choosing a software development methodology.
Yu Song, Tahir Mahmood, Ubaid Ur Rehman
doaj   +1 more source

UBE3A Inhibits Trophoblast Cell Migration and Invasion by Promoting ITGB1 Degradation and Affecting PI3K/AKT Signaling

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Preeclampsia (PE) is an obstetric disease that is characterized by reduced migration and invasion of placental trophoblast cells. Here, the effects of the E3 ubiquitin ligase UBE3A on the migration and invasion of trophoblast cells were evaluated.
Xiu‐Jun Li, Ning Wang, Fan Jiang, Jie‐Cheng Yang, Yan‐Yun Wang, Kun Wang   +5 more
wiley   +1 more source