Results 21 to 30 of about 1,492,745 (341)

METHODS FOR DETERMINING THE ICE-FORMING EFFICIENCY OF ANTI-HAIL PRODUCTS ON LABORATORY INSTALLATIONS

open access: yesНаука. Инновации. Технологии, 2022
Introduction. This article presents a method for determining the ice-forming efficiency of anti-hail products with an output of more than 107 active particles per 1 g of reagent at laboratory facilities of the High Mountain Geophysical Institute.
B. Khuchunaev, S. Budaev, A. K. Gekkieva
doaj   +1 more source

Convenient method for preparing benzyl ethers and esters using 2-benzyloxypyridine

open access: yesBeilstein Journal of Organic Chemistry, 2008
2-Benzyloxy-1-methylpyridinium triflate (1) is emerging as a mild, convenient, and in some cases uniquely effective new reagent for the synthesis of benzyl ethers and esters. This article provides a revised benzyl transfer protocol in which N-methylation
Susana S. Lopez, Gregory B. Dudley
doaj   +1 more source

Studies оf Ice-forming Properties of Zinc Oxide Nanotube Clusters

open access: yesНаука. Инновации. Технологии, 2023
Introduction. In recent years, the volume of funds used in the practice of weather modification has been growing in the world. Silver, the main component of weather modification funds, is a rather expensive metal.
B. М. Khuchunaev   +2 more
doaj   +1 more source

Characterization a polyurethane-based reactive hot melt adhesive for applications in materials

open access: yesDyna, 2019
In the present study, we used tensile shear tests, Shore hardness tests, differential scanning calorimetry (DSC), and thermogravimetry (TGA) to characterize a reactive polyurethane-based hot melt adhesive.
JOSE LUDDEY MARULANDA AREVALO   +3 more
doaj   +1 more source

Mirror-image streptavidin with specific binding to L-biotin, the unnatural enantiomer

open access: yesScientific Reports, 2022
The streptavidin–biotin system is known to have a very high affinity and specificity and is widely used in biochemical immunoassays and diagnostics. However, this method is affected by endogenous D-biotin in serum sample measurements (biotin interference)
Masatoshi Suganuma   +9 more
doaj   +1 more source

Ferrozine---a new spectrophotometric reagent for iron

open access: yes, 1970
-N=C&N-, have been known to react as bidentate ligands with certain metal ions such as ferrous, cuprous, and cobaltous, to give colored complex species (1-6).
L. Stookey
semanticscholar   +1 more source

Stuck pipe risk reducing due drilling fluid treating [PDF]

open access: yesНанотехнологии в строительстве, 2017
Drilling fluids for deep and extended reach wells are complex multicomponent systems that contain dissolved salts, polymers, surfactants and coarse solids.
POPOV Anatoly Nikolaevich   +4 more
doaj   +1 more source

Use of Lateral Flow Immunoassay to Characterize SARS-CoV-2 RBD-Specific Antibodies and Their Ability to React with the UK, SA and BR P.1 Variant RBDs

open access: yesDiagnostics, 2021
Identifying anti-spike antibodies that exhibit strong neutralizing activity against current dominant circulating variants, and antibodies that are escaped by these variants, has important implications in the development of therapeutic and diagnostic ...
Enqing Tan   +13 more
doaj   +1 more source

Magnesium as a Reagent [PDF]

open access: yesScientific American, 1889
n ...
openaire   +1 more source

The prognostic potential of fragmented CK18 serum levels in HCC patients reflecting disease progression and overall hepatocyte damage

open access: yesFrontiers in Oncology, 2022
BackgroundFragmented cytokeratin 18 (fCK18) is released from damaged hepatocytes undergoing apoptosis and is recognized as a liver condition biomarker. We have developed a highly sensitive serum fCK18 CLEIA and reported that serum levels of this caspase ...
Akiko Eguchi   +13 more
doaj   +1 more source

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