Results 71 to 80 of about 1,453,212 (197)

A Spare Support Vector Machine Based Fault Detection Strategy on Key Lubricating Interfaces of Axial Piston Pumps

open access: yesIEEE Access, 2019
Fault detection of axial piston pumps is of great significance to improve the reliability and life of fluid power systems. However, it is difficult to detect multiple faults on key lubricating interfaces due to the liquid-solid coupling.
Shiqi Xia   +5 more
doaj   +1 more source

Implantable Systems for Cardiovascular Treatment and Monitoring: Comparative Insights From Intracardiovascular and Extracardiovascular Technologies

open access: yesAdvanced Intelligent Systems, EarlyView.
A unifying device–cardiovascular interface framework is presented to classify implantable cardiovascular technologies as intracardiovascular blood‐contacting systems or extracardiovascular tissue‐only and blood‐handling architectures. Cross‐class comparison across shared semiquantitative criteria, including blood‐contact burden, biomimicry ...
Bergo Nicolò   +7 more
wiley   +1 more source

development of a Free-Piston Linear Generator for use in an Extended-Range Electric Vehicle [PDF]

open access: yes, 2012
This paper presents the development methodology of the Free-Piston Linear Generator. The FPLG is a free-piston combustion engine with an integrated linear generator. The engine can be used as a range-extending device in an electric vehicle.
Friedrich, Horst E., Ferrari, Cornelius
core  

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva   +3 more
wiley   +1 more source

A Constant-Pressure Air Storage Operation Strategy for an Isothermal Compressed Air Energy Storage System Based on a Linear-Drive Liquid Piston

open access: yesEnergies
Compressed air energy storage (CAES) systems represent a critical technological solution for addressing power grid load fluctuations by generating electrical power during peak load periods and storing energy during low load periods. As a prominent branch
Yan Cui, Tong Jiang, Zhengda Chen
doaj   +1 more source

Low‐Field MRI as a Multiparametric Tool for Large Engineered Tissue Characterization

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Advances in 3D bioprinting have enabled the fabrication of large and complex engineered tissues, but their increasing size demands non‐invasive tools for monitoring structure, maturation, and perfusion. Magnetic Resonance Imaging (MRI) offers unique multiparametric capabilities, yet high‐field systems remain costly and inaccessible for most ...
Yilbert Gimenez   +8 more
wiley   +1 more source

Impact of Trace Water on the Macroscopic Activity of Commercial Ammonia Cracking Catalysts Under Process‐Relevant Conditions

open access: yesChemie Ingenieur Technik, EarlyView.
This study evaluates how small water impurities—typical in ammonia cracking feedstock—affect catalyst performance at elevated pressures and temperatures. By decoupling permanent degradation from reversible inhibition, the findings highlight trace water as a significant factor for reliable catalyst screening and industrial ammonia cracking scale‐up ...
Bruno V. P. Lago   +6 more
wiley   +1 more source

The Liquid Piston Recorder and the Registration of its Movements by Means of Photography [Offprint]

open access: yes, 1886
THE LIQUID PISTON RECORDER AND THE REGISTRATION OF ITS MOVEMENTS BY MEANS OF PHOTOGRAPHY [OFFPRINT] Physiological Laboratory Harvard Medical School.
Ellis, F. W.
core   +1 more source

Numerical Modelling of the Discharge Cycle of a Subsea Hydro-Pneumatic Energy Storage System

open access: yesEnergies
This paper presents a numerical model of the discharge cycle of a subsea open-cycle hydro-pneumatic energy storage system intended for offshore long-duration energy storage.
Keith Thomas Borg   +4 more
doaj   +1 more source

Simple model of liquid piston compressor

open access: yesJournal of Physics: Conference Series
Abstract The study proposes a new 0D thermodynamic model for the fast and simple evaluation of Liquid Piston compressors whose geometry and operation are determined by large number of parameters. With the proposed model, the evaluation of the parameters becomes easier, more dependencies are found and the understanding of the influences ...
Cerkovnik, Nejc   +2 more
openaire   +2 more sources

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