Results 11 to 20 of about 2,530 (217)

MODERN HYDRAULIC FLUIDS “VPO “VOLGOHIMNEFTJ”

open access: yesЛитьë и металлургия, 2007
The issue of expediency of application of fire-safe hydraulic fluids on the basis of working experience of foreign and domestic furnaces is examined. The brief review of assortment of hydraulic fluids produced by “VPO VolgohimneftJ ” is given.
S. A. Chumakov
doaj   +2 more sources

Influence of Intercalation-Exfoliation-Reduction Technique towards the Physico-Chemical of VPO Catalysts [PDF]

open access: yesJournal of Chemistry, 2013
Four VPO catalysts were synthesized through intercalation and exfoliation in various alcohols and subsequent reduction of the exfoliated VOPO4 sheets with various alcohols to produce VOHPO4·0.5H2O.
Y. C. Wong, Y. H. Taufiq-Yap
doaj   +2 more sources

An Empirical Test of the Pricing of VPO Contracts

open access: yesAustralian Journal of Management, 2003
C1 - Refereed Journal ArticleA variable purchase option (VPO) is a call option issued by a company on a stochastic rather than on a fixed number of its ordinary shares.
Handley, JC
core   +3 more sources

Structure and properties of Cr promoted VPO catalysts [PDF]

open access: yesMaterials Chemistry and Physics, 2005
In this work, VOHPO4·1/2H2O was synthesized from V2O5 and anhydrous H3PO4 in an alcohol mixture. The Cr(NO3)3 in varying proportions was either added during synthesis or impregnated on the dried vanadyl hydrogen phosphate.
Lombardo, Eduardo Agustin   +1 more
core   +3 more sources

Fabrication of CdxZn1-xS@VPO (x=0.2) Nanocomposites for n-Butane Selective Oxidation Toward Maleic Anhydride

open access: yes, 2022
Vanadium phosphorous oxide (VPO) catalysts have been recognized as heterogeneous catalyst for selective oxidation of lowcarbon alkanes i.e., n-butane toward maleic anhydride.
Saeed, Aamir   +7 more
core   +1 more source

Selective Liquid Phase Ammoxidation of Aromatic Aldehydes to Aromatic Nitriles with VPO Titania Heterogeneous Catalysts in Air [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2009
Preparation of 2-Chlorobenzonitrile, and benzonitrile are reported here from the corresponding 2-Chlorobenzaldehyde and benzaldehyde by the reaction of ammonium hydroxide/VPO titania, VPO bulk (ammonium metavanadate) CuCr catalyst/air system in methanol.
Ateeq Rahman   +3 more
doaj  

Activation of α7 Nicotinic Acetylcholine Receptor Protects Against Oxidant Stress Damage Through Reducing Vascular Peroxidase-1 in a JNK Signaling-Dependent Manner in Endothelial Cells

open access: yesCellular Physiology and Biochemistry, 2014
Aim: Alpha7 nicotinic acetylcholine receptor (α7nAChR), a subtype of nAChR regulating neurotransmission in central nervous system, is an essential regulator of cholinergic anti-inflammatory pathway in periphery.
Dong-Jie Li   +5 more
doaj   +1 more source

Settlement and experimental determination of the maximum loading of the arrow of the odnokovshovy excavator

open access: yesВестник СибАДИ, 2017
The article justified the application of the method of three-parameter distribution Fisher-Tippet to evaluate the selective set of parameters of the same type of detail on the example of an arrow shovel excavator.
S. V. Teplyakova   +2 more
doaj   +1 more source

Establishing the Strength Characteristics of the Lifting-Leveling Device Structures of the VPO-3-3000 Machines for the Track Straightening

open access: yesCommunications, 2020
This article deals with replacement of the magnetic grippers on the VPO-3-3000 machines with roller grippers. The novelty lies in establishment of dependences characterizing stress and strain in elements of the lifting and straightening devices and in ...
Adil Kadyrov   +3 more
doaj   +1 more source

Review of Memristors for In‐Memory Computing and Spiking Neural Networks

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Memristors uniquely enable energy‐efficient, brain‐inspired computing by acting as both memory and synaptic elements. This review highlights their physical mechanisms, integration in crossbar arrays, and role in spiking neural networks. Key challenges, including variability, relaxation, and stochastic switching, are discussed, alongside emerging ...
Mostafa Shooshtari   +2 more
wiley   +1 more source

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