Results 51 to 60 of about 904 (212)

Numerical Investigation of a Two-Phase Ejector Operation Taking into Account Steam Condensation with the Presence of CO₂

Energies
The application of a two-phase ejector allows for the mixing of liquid and gas and provides effective heat transfer between phases. The aim of the study is a numerical investigation of the performance of a water-driven, condensing two-phase ejector.
Tomasz Kuś, Paweł Madejski
doaj   +1 more source

Simulation and Experimental Investigation of Performance and Flow Behavior for Steam Ejector Refrigeration System

Journal of Engineering, 2023
The ejector refrigeration system is a desirable choice to reduce energy consumption. A Computational Fluid Dynamics CFD simulation using the ANSYS package was performed to investigate the flow inside the ejector and determine the performance of a small ...
Shakir Jasim, Akram W. Ezzat, Eric Hu
doaj   +1 more source

Efficacy of Fixed Low‐Power Long‐Duration Radiofrequency Ablation of Ventricular Arrhythmias Originating From the Left Ventricular Summit

Journal of Arrhythmia, Volume 42, Issue 3, June 2026.
Efficacy and safety of a fixed low‐power, long‐duration radiofrequency catheter ablation of ventricular arrhythmias originating from the left ventricular summit. ABSTRACT Background Radiofrequency catheter ablation (RFCA) of ventricular arrhythmias originating from the left ventricular summit (LVS‐VAs) remains challenging.
Takuro Masuda, Koji Nakagawa, Satoshi Kawada, Tomofumi Mizuno, Akira Ueoka, Saori Asada, Masakazu Miyamoto, Nobuhiro Nishii, Kazufumi Nakamura, Hiroshi Morita, Shinsuke Yuasa   +10 more
wiley   +1 more source

Theoretical Research of Steam-Jet Ejector

SHINKU, 1974
Assuming a typical pattern of flow in ejector, authors have made theoretically clear up the following items : (1) Equation of performance curve of ejector(2) Law of similarity(3) Effect of molecular weight of entrained fluid and motive fluid on the performance of ejector(4) Hyperbolic law(5) Limit of ability of ejector(6) Compression ...
HAYAMI, Keiji, HOJO, Katsuhiko, IKEGAMI, Tatsuji   +2 more
openaire   +2 more sources

Feasibility and Safety of High‐Power Settings for Electrical Isolation of the Superior Vena Cava Using a Catheter Capable of Local Impedance and Contact Force Monitoring

Journal of Arrhythmia, Volume 42, Issue 3, June 2026.
High‐power superior vena cava isolation using a contact force– and local impedance–sensing catheter achieved safe and consistent first‐pass isolation. Local impedance decreased more rapidly than generator impedance, accurately reflecting effective lesion formation and enabling reliable real‐time assessment in thin SVC myocardium.
Daisuke Kawano, Hitoshi Mori, Kei Matsumoto, Naomichi Tanaka, Tsukasa Naganuma, Wataru Sasaki, Masataka Narita, Kazuhisa Matsumoto, Yoshifumi Ikeda, Kazuo Matsumoto, Ritsushi Kato   +10 more
wiley   +1 more source

Otimização termoeconomica de ciclo de refrigeração por compressão por ejetor auxiliado com energia solar [PDF]

, 1997
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro ...
Tapia, Gabriel Ivan Medina
core  

Theoretical Model for Predicting Steam-Ejector Performance

, 1976
A simple theoretical model has been developed as an aid to designing steam ejectors. The ejector flow is modeled as comprising a number of continuum components such as potential flows and shear flows.
E. F. Kurtz
core   +1 more source

Performance optimization of steam jet ejectors via multioutput Gaussian processes

Case Studies in Thermal Engineering
As structurally simple and operationally reliable devices, steam ejectors are widely employed for fluid transport and mixing in various industrial processes.
Linjing Hu, Jiaqi Kang, Zhichao Wang
doaj   +1 more source

Impact of Pericardial Fat on Intracardiac Atrial Impedance and Generator Impedance

Journal of Arrhythmia, Volume 42, Issue 3, June 2026.
Intracardiac atrial impedance (IAI) was associated with pericardial fat volume, serum sodium levels, and hemoglobin concentrations, but not with body mass index. IAI was also an independent determinant of generator impedance. These findings suggest that IAI may serve as a real‐time indicator for optimizing ablation strategies based on patient‐specific ...
Shogo Hamaura, Masaomi Kimura, Yuichi Toyama, Kimitaka Nishizaki, Takahiko Kinjo, Yuji Ishida, Taihei Itoh, Shingo Sasaki, Hirofumi Tomita   +8 more
wiley   +1 more source

Numerical investigation on performance optimization of steam ejector considering full geometric parameters and working conditions

Case Studies in Thermal Engineering
As an energy-saving device for energy transduction, a steam ejector has been crucial in energy saving and emission reduction, energy consumption reduction, and energy reuse.
Dongjun Guo, Jianbo Wang, Zhisong Zhu
doaj   +1 more source