Results 151 to 160 of about 321,923 (285)

Research on digital valve-controlled hydraulic system for active radial control of wheelsets

open access: yes机车电传动
This paper addresses the issue of excessive heat generation in active radial hydraulic servo control systems by proposing an active radial digital valve-controlled hydraulic system for wheelsets based on the pulse-code modulation (PCM) technique.
NI Wenbo, LIU Shuwei, WANG Xuemei
doaj  

Green Hydrogen for Public Transportation: Insights From an ABM and From Palma de Mallorca Case Study

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The development of green hydrogen (GH2) value chains is crucial for decarbonizing sectors such as transport and industry. Their emergence, however, requires coordination among diverse actors, technologies, and regulations, which traditional analytical approaches struggle to capture.
Roberta De Cristofaro   +2 more
wiley   +1 more source

Incidence and In‐Hospital Mortality of Ventricular Septal Rupture Following Acute Myocardial Infarction

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Ventricular septal rupture (VSR) is a rare but devastating complication of acute myocardial infarction (MI), associated with high mortality despite advances in reperfusion therapy. However, contemporary data examining national trends in VSR outcomes and the evolving role of mechanical circulatory support (MCS) in this population ...
Javier Fernandez   +8 more
wiley   +1 more source

Annular Ellipticity and Sizing Strategy in Transcatheter Aortic Valve Implantation: Independent or Combined Risk Patterns?

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Elliptical annular anatomy has been considered a risk factor for adverse outcomes after TAVI, particularly paravalvular leakage (PVL). Prosthesis oversizing is thought to improve sealing, but the interaction between annular shape and sizing strategy remains unclear.
Emre Polat   +6 more
wiley   +1 more source

Comprehensive Nursing Management of Anticoagulation and Heart Failure Surveillance in a Chinese Patient With Mirror‐Image Dextrocardia Post‐MitraClip Surgery: A First Case Report

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Mitral regurgitation (MR) is the valent type of valvular heart disease, caused by primary leaflet lesions or annular dilatation secondary to left ventricular dysfunction. It can lead to a series of complications such as volume overload, exacerbated pulmonary congestion, and heart failure, significantly impacting patient prognosis ...
Juelian Li   +4 more
wiley   +1 more source

TAVR for Pure Aortic Regurgitation: A Patient-Specific Simulation-Based Feasibility Study. [PDF]

open access: yesJACC Asia
Mao Y   +8 more
europepmc   +1 more source

High‐Temperature Heat Pump Test Bench with n‐Butane (R‐600) Generating Steam

open access: yesChemie Ingenieur Technik, EarlyView.
This work involves building a test bench for a high‐temperature heat pump (HTHP) and analyzing the measurements. The focus is on steam generation using an HTHP to decarbonize process steam demand. The findings indicate that stable steam generation is possible, providing a higher heat transfer coefficient in the heat pump's condenser.
Sebastian Benkert   +7 more
wiley   +1 more source

Performance comparison of pressure swing adsorption and amine‐based absorption for synthesis gas purification

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Comparison of PSA and amine‐based absorption for syngas purification shows that PSA offers lower energy intensity, global warming potential, and minimum selling price, making it a more sustainable option. However, absorption achieves higher syngas purity. A GREENSCOPE‐based multi‐criteria assessment guides optimal process selection.
Magno Fonseca Santos   +2 more
wiley   +1 more source

Economic and environmental implications of the development of UASB reactors in Mexico for sustainable industrial wastewater treatment

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The objective of this work is to demonstrate that the inclusion of an up‐flow anaerobic sludge bed (UASB reactor) within an industrial wastewater treatment plant reduces the plant's investment and operating costs compared to a system based solely on conventional complete‐mix activated sludge (CMAS), operating under the same design principles ...
Juan Manuel Morgan‐Sagastume   +1 more
wiley   +1 more source

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