Results 31 to 40 of about 8,043 (204)

Numerical Investigation of the Expansion Devices Applied in Modern Vapour Compression Refrigeration Unit Considering Specific Entropy and Entropy Generation Analyses

Chemical Engineering Transactions, 2022
Ejector-based refrigeration cycles working with natural refrigerants have already gained industry attention. Replacing throttling valve with an ejector in vapour-compression cycles brings high improvement of the cycle efficiency due to the ejectors ...
Rafal Fingas, Michal Haida, Jacek Smolka, Giorgio Besagni, Michal Palacz, Jakub Bodys, Andrzej J. Nowak   +6 more
doaj   +1 more source

CFD Simulation and Experimental Study on Single Phase Dual Temperature Ejector [PDF]

, 2012
An adjust ejector was designed based on classical gas dynamical function method in single phase dual temperature ejector refrigeration system. Further more ejector optimal dimension influenced by mass flow distribution ratio, high and low evaporating ...
Zhuang, Rong, Zheng, Bo, Liang, Xiangfei, Wu, Yingwen   +3 more
core   +1 more source

Experimental investigation of an improved ejector with optimal flow profile

Case Studies in Thermal Engineering, 2023
The flow profile of the ejector directly affects the distribution of velocity and thermodynamic parameters such as pressure, temperature, and density, which are closely related to the internal irreversible loss of the ejector.
Xinyue Hao, Jiwei Yan, Neng Gao, Oleksii Volovyk, Yifan Zhou, Guangming Chen   +5 more
doaj   +1 more source

Five‐Year Outcomes of Laparoscopic Sphincter‐Preserving Surgery for Rectal Cancer: A Prospective Study in Elderly Vietnamese Patients

Aging and Cancer, EarlyView.
This prospective study demonstrates that laparoscopic sphincter‐preserving surgery is feasible for elderly patients. While overall survival reaches 70% at 5 years, advanced T‐stage and the omission of neoadjuvant therapy significantly drive recurrence, highlighting the need for personalized geriatric protocols despite logistical challenges.
Huu Duc Ho, Quang Le, Ngoc Thach Tran, Van Viet Ung, Loc Vu   +4 more
wiley   +1 more source

Experimental investigation of a novel variable geometry radial ejector

, 2023
This work focuses on improving ejector performance in variable conditions by developing a radial flow variable geometry radial ejector (VGRE). The research objective was to demonstrate the performance of the improved VGRE, which can operate more ...
Malpress, Ray, Saleh, Khalid, Ray Malpress, Al-Rbaihat, Raed, Buttsworth, David, Raed Al-Rbaihat, Khalid Saleh, David Buttsworth   +7 more
core   +1 more source

Early Clinical, Imaging, and Pathological Characteristics of SRPK3/TTN‐Digenic Myopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective SRPK3/TTN‐digenic myopathy was recently established as a skeletal muscle myopathy caused by digenic inheritance. This study characterizes the early clinical presentation of SRPK3/TTN‐digenic myopathy in one previously reported and seven newly identified pediatric patients.
Rotem Orbach, Sandra Donkervoort, Carola Hedberg‐Oldfors, Giovanni Baranello, Dimah Saade, Precilla D'Souza, Ruchee Patel, Eva Michael, A. Reghan Foley, Diana Bharucha‐Goebel, S. Jin Haugland, Meghan McAnally, Omer Abdul Hamid, Katherine Chao, Ellen F. Macnamara, Alan H. Beggs, Anna Sarkozy, Juliane Mueller, Steven A. Moore, Richard S. Finkel, Cynthia J. Tifft, Francesco Muntoni, Anders Oldfors, Carsten G. Bönnemann   +23 more
wiley   +1 more source

Characteristics Of R718 Thermocompression Refrigerating / Heat Pump Systems With Two-Phase Ejectors [PDF]

, 2012
The paper describes the investigations of the R718 thermocompression refrigerating cycle with two-phase ejector as a compression device. The complex thermal and flow phenomena connected with compression and condensation inside the two-phase ejector flow ...
Sarevski, Vasko Nikola, Sarevski, Milan Nikola   +1 more
core   +1 more source

Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector

Case Studies in Thermal Engineering, 2023
In this study, for the two-stage ejector under three inlet conditions of air-conditioning, refrigerating and freezing, a three-dimensional simulation is used to study the impact of the mixing chamber radius of the first and second stage on the minimum ...
Jia Yan, Haiping Gao, Zheng Wang
doaj   +1 more source

Peripheral Neutrophil Activation and Extracellular Trap Formation in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
Markers of neutrophil activation are increased in plasma during ALS, and markers of NET formation associate with ALS survival. ABSTRACT Objectives Peripheral neutrophil levels in amyotrophic lateral sclerosis (ALS) inversely correlate with survival, suggesting a role for neutrophils in disease progression.
Lillia A. Baird, Haley McQuown, Jihyun Park, Samuel J. Teener, Ian F. Webber‐Davis, Andrew D. Carter, Dae‐Gyu Jang, Eva L. Feldman, Stephen A. Goutman, Benjamin J. Murdock   +9 more
wiley   +1 more source

Investigation of radial flow ejector performance through experiments and computational simulations [PDF]

, 2017
Adjustability in ejector geometry is desirable to extend the operating range of ejectors at different working conditions. Current approaches to geometric adjustability in the throat sizes of conventional axial ejectors have the disadvantage of blocking ...
Rahimi, Hadi
core   +1 more source