Results 121 to 130 of about 2,598,073 (297)

High-temperature gas/liquid stress relaxometers [PDF]

open access: yes, 1974
Two relaxometers allow testing of elastomers in various fluids. First relaxometer uses fork-like loading spacer interposed between loading lever and support ring, so that sample is stretched predetermined amount.
Kalfayan, S. H., Silver, R. H.
core   +1 more source

Validated RP‐HPLC–UV Method for the Quantitative Analysis and Stability Evaluation of Amoxicillin in Paediatric Gummy Tablets

open access: yesELECTROPHORESIS, EarlyView.
A validated RP‐HPLC–UV method was successfully applied for amoxicillin determination in gummy tablets. The method is useful for an accurate amoxicillin content determination in paediatric gummies and was applied to study the stability profile of the drug, evaluated over 6 months under storage conditions.
Samuele Bonafè   +7 more
wiley   +1 more source

Zero gravity liquid mixer [PDF]

open access: yes, 1973
An apparatus for mixing liquids under conditions of zero gravity is disclosed. The apparatus is comprised of a closed reservoir for the liquids, with a means for maintaining a positive pressure on the liquids in the reservoir. A valved liquid supply line
Booth, F. W., Bruce, R. A.
core   +1 more source

A multi-purpose modular system for high-resolution microscopy at high hydrostatic pressure

open access: yes, 2009
We have developed a modular system for high-resolution microscopy at high hydrostatic pressure. The system consists of a pressurised cell of volume ~100 microlitres, a temperature controlled holder, a ram and a piston.
Allen, Rosalind J.   +5 more
core   +1 more source

Multiobjective Optimization of Hydrogen‐Assisted Calophyllum inophyllum Biodiesel Operation in a Compression Ignition Engine

open access: yesEnergy Science &Engineering, EarlyView.
Tri‐fuel diesel–Calophyllum inophyllum biodiesel–hydrogen operation was tested over 96 points in a diesel engine. Eight performance and emission metrics feed a preference‐agnostic Bootstrapped Empirical Multiobjective Ranking and Selection methodology, revealing load‐blend‐hydrogen windows that increase efficiency, restrain smoke, and expose NOx trade ...
C. Naga Kumar   +5 more
wiley   +1 more source

A Digital Engineering Framework for Piston Pin Bearings via Multi-Physics Thermo-Elasto-Hydrodynamic Modeling

open access: yesSystems
The piston pin operates under severe mechanical and thermal conditions, making accurate lubrication prediction essential for engine durability. This study presents a comprehensive digital engineering framework for piston pin bearings, built upon a fully ...
Zhiyuan Shu, Tian Tian
doaj   +1 more source

Synthesis and Evaluation of Ceramic‐Anchored Cu‐Ce‐MnOx Catalyst for Low Temperature Reduction of Diesel Engine NOx Emissions Using Liquefied Petroleum Gas or Adblue as Reductants

open access: yesEnergy Science &Engineering, EarlyView.
LPG converting harmful NO represented by the dark smoke to harmless N2 and H2O shown by the white smoke over Cu‐Ce‐MnOx catalyst. ABSTRACT Manganese oxide‐based catalyst doped with copper and cerium was synthesized through microwave irradiation and successfully anchored on a ceramic support.
Brian O. Obita   +3 more
wiley   +1 more source

Device induces lungs to maintain known constant pressure [PDF]

open access: yes, 1964
This device requires the use of thoracic muscles to maintain prescribed air pressure in the lungs for brief periods. It consists of a clear plastic hollow cylinder fitted with a mouthpiece, a spring-loaded piston, and a small vent for escaping air when ...
Lippitt, M. W., Reed, J. H.
core   +1 more source

Design and Experimental Study of Pressure Maintenance and Temperature Control System for Hydrate Pressure Core Processing Device

open access: yesEnergy Science &Engineering, EarlyView.
This paper presents a hydrate pressure core processing device integrated with a high‐precision active control system to perform nondestructive transfer, cutting, and analysis. To address the limitations of slow dynamic response and high thermal inertia in traditional passive systems, a differentiated control scheme is implemented.
Liwen Nan   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy