Results 31 to 40 of about 206 (133)

Section types and oil prospects of the Bazhenov Formation in the Nadym-Ob interfluve

Georesursy, 2020
The article presents the results of studying the geological structure of the Bazhenov Formation in the Nadym-Ob interfluve of Western Siberia with the aim of predicting the oil content of this black shale stratum.
Mikhail A. Fomin, Rashid M. Saitov
doaj   +1 more source

Laser‐Synthesized Amorphous PdSe2‐x Nanoparticles: A Defect‐Rich Platform for High‐Efficiency SERS, Photocatalysis, and Photothermal Conversion

Advanced Materials Interfaces, Volume 13, Issue 8, 21 April 2026.
Using femtosecond ablation, we show that an ordered, stoichiometric crystalline PdSe2 target can be controllably converted into a stable, disordered, non‐stoichiometric, and highly functional amorphous nanomaterial, PdSe2−x${\rm PdSe}_{2-x}$. The obtained nanoparticles offer significant advantages over conventional planar plasmon‐free substrates due to
Andrei Ushkov, Nadezhda Belozerova, Dmitriy Dyubo, Ilya Martynov, Alexander Syuy, Daniil Tselikov, Georgy Ermolaev, Sergey V. Bazhenov, Roman I. Romanov, Ivan Kruglov, Anton A. Popov, Alexander Chernov, Alexey D. Bolshakov, Sergey Novikov, Andrey A. Vyshnevyy, Aleksey Arsenin, Andrei V. Kabashin, Gleb I. Tselikov, Valentyn Volkov   +18 more
wiley   +1 more source

High Geomagnetic Reversal Frequency During the Middle to Late Ediacaran (∼570 Ma) Constrained by Integrated Magneto‐ and Cyclostratigraphy

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract The Ediacaran–Cambrian (∼635–539 Ma) geomagnetic field is characterized by unusually high reversal rates and markedly weakened field strength. Estimates of these reversal frequencies can reveal key aspects of deep Earth dynamics and their potential influence on surface environments and early complex life.
J. W. L. Afonso, R. M. Rocha, D. R. Franco, N. B. Dos Santos, C. G. Leandro, P. Franceschinis, A. E. Rapalini, M. J. Arrouy, L. E. Gómez‐Peral, D. G. Poiré, S. Caetano‐Filho, H. D. Brito, R. I. F. Trindade   +12 more
wiley   +1 more source

COMPARATIVE PETROPHYSICAL CHARACTERISTIC OF THE CUTS OF THE GERASIMOVSKOE AND KRAPIVINSKOE FIELDS (IN RELATION TO PETROLEUM POTENTIAL OF PRE-JURASSIC DEPOSITS)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the research is caused by the need to reproduce the raw material base of hydrocarbons in the southeast of Western Siberia due to prospecting and exploration of deposits associated with pre-Jurassic deposits. The aim of the research is to
Anna O. Aleeva, Valeriy I. Isaev
doaj   +1 more source

A petrographic study of the genesis of anomalous sections in the Bazhenov Formation, the Imilor deposit, Western Siberia

LITHOSPHERE, 2019
Research subject. Anomalous sections present in the oil- and bituminous-bearing Bazhenov Formation (BF), in the central areas of the West Siberian basin, are considered to have emerged due to the injection of plastic pulp masses from the sedimentation slope into weakly lithified basal deposits.
V. F. Grishkevich, N. N. Gatina, A. O. Sidorenko, E. V. Karpova   +3 more
openaire   +3 more sources

Modulation of slow and fast oscillations by direct current stimulation in the cerebral cortex in vitro

The Journal of Physiology, Volume 604, Issue 5, Page 2131-2151, 1 March 2026.
Abstract figure legend Direct‐current (DC) electric fields modulate spontaneous slow oscillations in cerebral cortex slices in vitro. Schematic of the in vitro preparation (upper panels). Spontaneous slow oscillations (SO; <1 Hz) consisting of alternating Up (active) and Down (silent) states were observed under control conditions.
Mattia D'Andola, Julia F. Weinert, Joana Covelo, Maurizio Mattia, Maria V. Sanchez‐Vives   +4 more
wiley   +1 more source

Phase Topology Stability of an Optical Vortex via an Electrically Controlled Twist‐Planar Oriented Liquid Crystal Fresnel Lens

Advanced Optical Materials, Volume 14, Issue 5, 2 February 2026.
A simple and efficient method for determining the stability of optical vortices via Fourier transform using a conventional spherical lens is presented. The theoretical and experimental results demonstrate a practical approach to directly and unambiguously measure the magnitude and sign of the topological charge of a beam without altering an ...
Elena Melnikova, Katsiaryna Pantsialeyeva, Dmitry Gorbach, Alexei Tolstik, Sergei Slussarenko Jr., Alina Karabchevsky   +5 more
wiley   +1 more source

MINERALOGY, GEOCHEMISTRY AND THE NATURE OF LIGHTNING OF LUMINESCENT LAYERS IN THE BAZHENOV FORMATION OF THE WEST SIBERIAN SEDIMENTARY BASIN

Известия Томского политехнического университета: Инжиниринг георесурсов, 2020
Relevance. The study of mineralogical and geochemical features of luminescent layers in the Bazhenov formation of West Siberian sedimentary basin (Tomsk region and adjacent regions) will allow clarifying their mineral composition and nature of formation,
Elena S. Kondrashova
doaj   +1 more source

Feasibility study of mining Bazhenov chrysotile asbestos deposit by combined method

Vestnik MGTU
A special feature of the open-pit mining of the Bazhenov chrysotile asbestos deposit is the location of the Tsentralny and Yuzhny pits surrounded by industrial and urban buildings, limiting the possibilities for further development of open-pit mining in deep horizons.
Yu. G. Antipin, I. V. Nikitin, Yu. M. Solomein   +2 more
openaire   +1 more source

A >70‐Myr‐Long Geomagnetic Field Reversal Hyperactivity Across the Ediacaran‐Cambrian Transition

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract The long‐term variation of the geomagnetic field is a key constraint for unraveling the geodynamo processes and the evolution of Earth's deep interior. However, the geomagnetic reversal pattern during the Ediacaran–Cambrian transition remains elusive. Here we present an integrated magneto‐ and cyclo‐stratigraphic study of a ∼1.8‐Myr‐long, late
Fuyun Shen, Bin Wen, Phil J. A. McCausland, Zheng Gong, Zongmin Zhu, Fangzheng Liu, Jingyi Wang   +6 more
wiley   +1 more source