Results 111 to 120 of about 119,428 (354)

Analysis and optimization of piston engine exhaust noise silencer using ALLBEA NOISE

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
This study presents a computational method for reducing exhaust noise in a two-stroke piston engine. The exhaust system was analyzed using the ALLBEA software package, and its optimization was performed using the ALLBEA NOISE program. A comparison of the
R. E. Dadashov, A. A. Chernousov
doaj   +1 more source

Approaching Carnot efficiency at maximum power in linear response regime

open access: yes, 2019
We construct an example of heat engine whose efficiency at maximum power breaks down the previously derived bounds in the linear response regime. Such example takes a classical harmonic oscillator as the working substance undergoing a finite-time Otto ...
Bonança, Marcus V. S.
core   +1 more source

Granular Hydrogels as Modular Biomaterials: From Structural Design to Biological Responses

open access: yesAdvanced Healthcare Materials, EarlyView.
Granular hydrogels are now emerging as promising biomaterials due to their inherent microporousity, injectability, and modularity. They have shown improvements in cell viability and migration, cellular/tissue infiltration, host tissue integration, mitigated foreign body response, and tissue regeneration.
Asmasadat Vaziri   +6 more
wiley   +1 more source

Charging process analysis of an opposed-piston two-stroke aircraft Diesel engine

open access: yesITM Web of Conferences, 2017
This paper presents the research results on a 1D model of an opposed-piston two-stroke aircraft Diesel engine. The research aimed at creating a model of the engine in question to investigate how engine performance is affected by the compressor gear ratio.
Grabowski Łukasz   +2 more
doaj   +1 more source

Determination of two-stroke engine exhaust noise by the method of characteristics [PDF]

open access: yes
A computational technique was developed for the method of characteristics solution of a one-dimensional flow in a duct as applied to the wave action in an engine exhaust system.
Brown, G. L., Jones, A. D.
core   +1 more source

Development of a Novel Synthetic Hydrogel Sealant for Effective Prevention of Liver Resection‐Associated Bile Leakage

open access: yesAdvanced Healthcare Materials, EarlyView.
A dual‐crosslinking poly(ethylene glycol) (PEG) hydrogel is presented that rapidly solidifies and progressively adheres to tissue, achieving durable sealing of bile leaks. In hepatectomy models, this system prevents postoperative complications more effectively than conventional sealants, highlighting its translational potential as a safe and efficient ...
Kazuyoshi Matsubara   +7 more
wiley   +1 more source

Proposal for Design of 1-Cylinder 2-Stroke Spark-Ignition Engine [PDF]

open access: yes, 2015
V programu Autodesk Invertor je vytvořen parametrický model jednoválcového dvoudobého zážehového motoru dle motoru Lawn-Boy. Parametry řídící rozměry modelu jsou vypočítány v programu Microsoft Excel.
Slavík Radek
core  

Analyzing structural characteristics of object category representations from their semantic-part distributions

open access: yes, 2015
Studies from neuroscience show that part-mapping computations are employed by human visual system in the process of object recognition. In this work, we present an approach for analyzing semantic-part characteristics of object category representations ...
R, Venkatesh Babu   +1 more
core   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

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