Results 141 to 150 of about 1,341,415 (398)
O-ring gasket test fixture [PDF]
, 1991 An apparatus is presented for testing O-ring gaskets under a variety of temperature, pressure, and dynamic loading conditions. Specifically, this apparatus has the ability to simulate a dynamic loading condition where the sealing surface in contact with ...
Mccluney, Donald Scott +1 more
core +1 more source
Research on fine co-focus adjustment method for segmented solar telescope [PDF]
arXivFor segmented telescopes, achieving fine co-focus adjustment is essential for realizing co-phase adjustment and maintenance, which involves adjusting the millimeter-scale piston between segments to fall within the capture range of the co-phase detection system.
arxiv
ChemCatChem, EarlyView.The shaping of proton exchanged ZSM‐5 zeolites with silica is shown to strongly impact the properties of the samples, with strong variations depending on the silica source. The Brønsted acidity is measured thanks to pyridine thermodesorption monitored by FTIR and the catalytic activity in m‐xylene isomerization is quantified, which leads to an ...
Coralie Demaret +5 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Andrographolide (ADG) was conjugated with MOFs (MIL‐53(Al), ZIF‐8) carbon‐based quantum dots (CBQDs) and doped carbon‐based quantum dots (D‐CBQDs) using the green approach of high‐pressure (0.3 GPa) solid phase contact. This method enhances the drug solubility, as indicated by changes in hydrophobicity observed via 1H NMR. Abstract Andrographolide (ADG)
Wenndy Pantoja‐Romero +5 more
wiley +1 more source
On a slow drift of a massive piston in an ideal gas that remains at mechanical equilibrium [PDF]
arXiv, 2003 We consider a heavy piston in an infinite cylinder surrounded by ideal gases on both sides. The piston moves under elastic collisions with gas atoms. We assume here that the gases always exert equal pressures on the piston, hence the piston remains at the so called mechanical equilibrium.
arxiv
The Canadian Journal of Chemical Engineering, EarlyView.The boundary‐regulated distributed parameter system of an axial dispersion tubular reactor with delayed recycle is showcased, along with the optimal observer‐based control strategy developed using a late‐lumping method for its stabilization. Abstract The optimal control of an axial tubular reactor with a recycle stream is addressed as a key type of ...
Behrad Moadeli +2 more
wiley +1 more source
Small High-Speed Self-Acting Shaft Seals for Liquid Rocket Engines [PDF]
Design analysis, fabrication, and experimental evaluation were performed on three self-acting facetype LOX seal designs and one circumferential-type helium deal design.
Boynton, J. L., Burcham, R. E.
core +1 more source
Hydraulic support for dynamic testing Patent [PDF]
, 1967 Hydraulic support apparatus for dynamic testing of space vehicles under near-free flight ...
Vonpragenau, G. L.
core +1 more source
Translations in the exponential Orlicz space with Gaussian weight [PDF]
arXiv, 2017 We study the continuity of space translations on non-parametric exponential families based on the exponential Orlicz space with Gaussian reference density.
arxiv
The Canadian Journal of Chemical Engineering, EarlyView.This graphical abstract illustrates the steps carried out in the laboratory study, including saponin modification and characterization, surface tension, interfacial tension, contact angle, adsorption, and surfactant injection tests. Abstract In this study, three forms of saponin surfactants extracted from the Camellia sinensis plant (CS1, CS2, and CS3)
Iman Nowrouzi +2 more
wiley +1 more source