Výsledky vyhledávání - "Lev Zakharov"

Reproduction of reservoir pressure by machine learning methods and study of its influence on the cracks formation process in hydraulic fracturing

Autor: Еvgenii Filippov, Lev Zakharov, Dmitrii Martyushev, Inna Ponomareva

Publikováno v: Journal of Mining Institute. 258:924-932

Hydraulic fracturing is an effective way to stimulate oil production, which is currently widely used in various conditions, including complex carbonate reservoirs. In the conditions of the considered field, hydraulic fracturing leads to a significant

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2aa31f5c8e50abf3d4f2d64304ca3d69
https://doi.org/10.31897/pmi.2022.103

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Taming the Dichalcogenides: Isolation, Characterization, and Reactivity of Elusive Perselenide, Persulfide, Thioselenide, and Selenosulfide Anions

Autor: Keyan Li, Lev Zakharov, Michael Pluth

Reactive sulfur species (RSS) and reactive selenium species (RSeS) play integral roles in hydrogen sulfide (H2S) and hydrogen selenide (H2Se) biological signaling pathways, and dichalcogenide anions are proposed transient intermediates that facilitat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::903ee7c11c1c9e4523a87035ca10b246
https://doi.org/10.26434/chemrxiv-2023-bclq3

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Molybdenum and Tungsten Carbonyl Compounds Generate Carbonyl Sulfide (COS), but not Carbonyl Selenide (COSe), when Treated with Elemental Sulfur and Selenium

Autor: Tobias Sherbow, Lev Zakharov, Michael Pluth

Carbonyl sulfide (COS) is implicated in prebiotic chemistry, and recent work on COS/H2S donors has invigorated COS chemistry. We demonstrate that [TpM(CO)3]- (M=Mo,W) react with S8 to form COS, but form [TpW(CO)2]2Se3 not COSe upon reaction with Se.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ffb01da32f49c991fd4dda3bb8204ed0
https://doi.org/10.26434/chemrxiv-2023-hp0mt

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Supramolecular Activation of S8 by Cucurbiturils in Water and Mechanism of Reduction to H2S by Thiols: Insights into Biological Sulfane Sulfur Trafficking

Autor: Arman Garcia, Lev Zakharov, Michael Pluth

Reactive sulfur species (RSS) play critical roles in diverse chemical environments. Molecules containing sulfane sulfur (S0) have emerged as key species involved in cellular redox buffering as well as RSS generation, translocation, and action. Using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::85ffd4eec347afb9fca4ab7837842dab
https://doi.org/10.26434/chemrxiv-2022-k20hq

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Predicting dynamic formation pressure using artificial intelligence methods

Autor: Inna Ponomareva, Dmitry Martyushev, Lev Zakharov

Publikováno v: Записки Горного института.

Determining formation pressure in the well extraction zones is a key task in monitoring the development of hydrocarbon fields. Direct measurements of formation pressure require prolonged well shutdowns, resulting in underproduction and the possibilit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::122c306957031a7d8007803a248d1ef6
https://doi.org/10.31897/pmi.2022.11

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Active Template Strategy for the Preparation of Interlocked Nanocarbons

Autor: James May, Jeff Van Raden, Ruth Maust, Lev Zakharov, Ramesh Jasti

Mechanically interlocked carbon nanostructures represent a relatively unexplored frontier in carbon nanoscience due to the difficulty in preparing these unusual topological materials. Here we illustrate an active template method in which the key mech

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b71739ffcd34c775afc0d6fd4e0716c4
https://doi.org/10.26434/chemrxiv-2022-qh5f3

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Strain‐Promoted Reactivity of Alkyne‐Containing Cycloparaphenylenes

Autor: Tobias A. Schaub, Johannes T. Margraf, Lev Zakharov, Karsten Reuter, Ramesh Jasti

Publikováno v: Angewandte Chemie International Edition. 57:16348-16353

A new class of macrocyclic angle-strained alkynes whose size and reactivity can be precisely tuned by modular organic synthesis is disclosed. Detailed analysis of the size-dependent structural and electronic properties provides evidence for considera

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::028c4da87815ee195bc20cafbf1914f5
https://doi.org/10.1002/anie.201808611

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