Results 91 to 100 of about 4,393 (194)

Quantum Heat Current in Terahertz‐Driven Phonon Systems

Advanced Physics Research, Volume 5, Issue 8, August 2026.
We develop a quantum mechanical description of ultrafast thermodynamics on the example of a laser‐excited phonon mode. We show that the resulting quantum heat current exhibits non‐Markovian dynamics, which can be controlled by the pulse length. ABSTRACT The advent of high‐intensity ultrafast laser pulses has opened new opportunities for controlling and
Yulong Qiao, R. Matthias Geilhufe
wiley   +1 more source

Influence of Heat Exchanger Structure on System Performance in Trans-Critical CO₂ Heat Pump Air Conditioning Systems for Trains

Zhileng xuebao
To further study the influence of heat exchanger structures on system performance and overall power consumption in transcritical CO2 heat pump air conditioning systems for high-speed trains to improve performance and reduce power consumption, this study ...
Xie Hongsheng, Bai Gang, Yang Mengying, Song Yulong, Cao Feng   +4 more
doaj  

Dual-Transformer Series Resonant Converter with Full Range ZVS Operation

Shanghai Jiaotong Daxue xuebao
A dual-transformer series resonant converter (DTSRC) is proposed to solve the problem of excessive return power and loss of zero voltage switching (ZVS) operation under light load in the dual bridge resonant converter (DBRC). A dual-transformer structure
LI Yinan, HU Song, LI Xiaodong, CHEN Wu, ZHONG Liping, YANG Qingqing
doaj   +1 more source

Advancements and Challenges in Liquid Hydrogen Storage Tank Design for Maritime Applications

Energy Storage, Volume 8, Issue 5, August 2026.
ABSTRACT In line with the Paris Agreement and the IMO's decarbonization goals, the shipping industry has begun to focus more intensively on adopting alternative fuels to reduce emissions. Among these, hydrogen has attracted considerable attention, with liquid hydrogen (LH2) offering advantages in energy density and storage volume over compressed gas ...
Sera Ayten Çetinkaya, S. Aykut Korkmaz, Nuno Bimbo, Sheida Afshan   +3 more
wiley   +1 more source

Numerical simulation of thermal stratification phenomenon in stagnant branch pipe of pressurized water reactors

He jishu
BackgroundIn thermal pipelines of nuclear power systems, thermal stratification is a common phenomenon that can cause stress concentration and deformation of pipeline structures, thereby leading to safety hazards.
MA Jingxiang, DONG Shichang, GONG Shengjie   +2 more
doaj   +1 more source

Simulation‐Based Design and Evaluation of an Alkaline Direct Glycerol Fuel Cell Stack With Integrated Purification

Fuel Cells, Volume 26, Issue 4, August 2026.
ABSTRACT Direct glycerol fuel cells (DGFCs) are a promising technology, but scaling them remains a challenge due to persistent technological and economic limitations. In this context, process simulation and modeling emerge as crucial tools. This study addresses the implementation of a conventional alkaline DGFC stack model in Aspen Plus and proposes a ...
Alessandra Pezzini, Ruy de Sousa Júnior
wiley   +1 more source

Efficacy and Tolerability of Tegoprazan Compared to Proton Pump Inhibitors in the Treatment of Erosive Esophagitis: A Systematic Review and Meta‐Analysis of Randomized Controlled Trials

JGH Open, Volume 10, Issue 8, August 2026.
ABSTRACT Aim Tegoprazan, a potassium‐competitive acid blocker, is an acid‐suppressing medication under review as a potential alternative treatment in cases of erosive esophagitis. This systematic review and meta‐analysis assesses the efficacy and tolerability of tegoprazan compared to proton pump inhibitors, the current standard of care. Methods Pubmed,
Youssef Diab, Charbel Maalouf, Anthony Junior Al Hakim, Perla Chami, Ali Ghais, Etwal Bou Raad, Louis Chaptini   +6 more
wiley   +1 more source

Study on the layout of permeable partition dike in approach channels of ship locks

Shuili Shuiyun Gongcheng Xuebao
Partition dikes between sluices and locks of hydropower projects are an effective measure to improve navigable flow conditions. Traditional partition dikes adopt impermeable or dike-opening structures. The upgrading of locks and the increasing complexity
JIANG Tao, YU Zhongtao, FAN Hongxia, SHEN Hong, AN Xiaofeng   +4 more
doaj   +1 more source

Feasibility of convection‐enhanced delivery of unlabeled 225Ac for glioblastoma: Transport, dosimetry, and clonogenic survival modeling

Medical Physics, Volume 53, Issue 8, August 2026.
Abstract Background Glioblastoma (GB) is an aggressive primary brain tumor with local recurrence rates exceeding 90% and a five‐year survival rate of approximately 5%. Standard treatments such as surgical resection, external beam radiotherapy (EBRT), and chemotherapy often leave residual tumor cells that are resistant to therapy.
Maram El Sabri, Leyla Moghaddasi, Puthenparampil Wilson, Frank Saran, Eva Bezak   +4 more
wiley   +1 more source

Comparison of a Miniaturized Implantable Two‐Stage Rotodynamic Blood Pump to Equivalent Single‐Stage Concepts

Artificial Organs, Volume 50, Issue 8, Page 1125-1135, August 2026.
This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier, Bente Thamsen, Stefan Maric, Bernhard Semlitsch, Benjamin Torner, Daniel Zimpfer, Marcus Granegger   +6 more
wiley   +1 more source