Results 121 to 130 of about 642,691 (356)

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen   +4 more
wiley   +1 more source

Development of compressor end seals stator interstage seals, and stator pivot seals in advanced air breathing propulsion systems. Part 2: Experimental data and analysis [PDF]

open access: yes
Performance tests of compressor seals and stator pivot seals used with air breathing propulsion systems - Part
Hawkins, R. M., Mckibbin, A. H.
core   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Dynamic Performance Analysis of Gas Film Floating Ring Seals Based on the Reynolds–Bernoulli Small-Perturbation Model

open access: yesMachines
Gas film floating ring seals are extensively utilized in aircraft engines, and precise analysis of gas film performance is crucial for ensuring reliable seal design.
Shuhai Zhu   +3 more
doaj   +1 more source

Investigating the performance of seals using photoelastic experimental hybrid method and finite element analysis

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
In this paper, performance behavior of seals under compression and various hydraulic pressures were investigated. Two approaches (experimental and numerical) have been used.
Bruno R. MOSE   +2 more
doaj   +1 more source

Annular honeycomb seals: Test results for leakage and rotordynamic coefficients; comparisons to labyrinth and smooth configurations [PDF]

open access: yes
Test results are presented for leakage and rotordynamic coefficients for seven honeycomb seals. All seals have the same radius, length, and clearance; however, the cell depths and diameters are varied.
Childs, Dara W.   +2 more
core   +1 more source

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

open access: yesAdvanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa   +4 more
wiley   +1 more source

Glyptic Findings with Anatolian Hieroglyphs from Kilis – Oylum Höyük

open access: yesAnadolu Araştırmaları
The archaeological excavations at Oylum Höyük were started in 1987 by Prof. Dr. Engin Özgen. Since 2012, they have been carried out by Prof. Dr. Atilla Engin. During these excavations, a total of eight seals or seal impressions with Anatolian hieroglyphs
Metin Alparslan
doaj   +1 more source

Dynamics of face and annular seals with two-phase flow [PDF]

open access: yes
A detailed study was made of face and annular seals under conditions where boiling, i.e., phase change of the leaking fluid, occurs within the seal.
Basu, Prithwish   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy