Results 41 to 50 of about 70,075 (318)

Corrosion and deterioration mechanism of water-rich filling materials in carbonate solutions

工程科学学报, 2015
In order to research the impact of carbonate ions on water-rich filling materials,strength testing,scanning electron microscopy,X-ray diffraction analysis and IR spectrum testing were used to analyze the macro- and micro-structural change and the ...
GAO Meng, LIU Juan-hong, WU Ai-xiang
doaj   +1 more source

Pliocene Te Aute limestones, New Zealand: Expanding concepts for cool-water shelf carbonates

, 2003
Acceptance of a spectrum of warm- through cold-water shallow-marine carbonate facies has become of fundamental importance for correctly interpreting the origin and significance of all ancient platform limestones.
Nelson, Campbell S., Hood, Steven D., Caron, Vincent, Campbell S. Nelson, Pallentin, Arne, Kamp, Peter J.J., Steven D. Hood, Peter R. Winefield, Peter J. J. Kamp, Arne Pallentin, Winefield, Peter R., Vincent Caron   +11 more
core   +1 more source

Neverovsky Palaeoreef and Associated Deep-Marine Facies: High-Value Late Devonian Geoheritage from the Rudny Altai

Heritage
The Rudny Altai is a western segment of the Altai orogenic belt. Its geological richness makes its geoheritage exploration an urgent matter. Investigations in the Loktevsky District (Altai Region, Russian Federation) have led to the finding of three ...
Jaroslav M. Gutak, Dmitry A. Ruban
doaj   +1 more source

CARBONATES FROM THE VISHNEVOGORSKOE ZR-NB DEPOSIT (SOUTHERN URALS) [PDF]

Минералогия, 2015
Data on carbonates in alkaline rocks, pegmatites, and late veinlets of the Vishnevogorskoe deposit are summarized. Among 21 minerals studied, calcite is the major mineral; dolomite, ankerite, siderite, aragonite, bastnasite-(Ce), and strontianite are ...
V.I. Popova, V.A. Popov, S.N. Nikandrov, E.I. Churin, I.A. Blinov, P.V. Khvorov   +5 more
doaj  

Construction of carbonate reservoir knowledge base and its application in fracture-cavity reservoir geological modeling

Petroleum Exploration and Development, 2021
To improve the efficiency and accuracy of carbonate reservoir research, a unified reservoir knowledge base linking geological knowledge management with reservoir research is proposed. The reservoir knowledge base serves high-quality analysis, evaluation,
Zhiliang HE, Jianfang SUN, Panhong GUO, Hehua WEI, Xinrui LYU, Kelong HAN   +5 more
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Influence of Electrolyte Composition on the Semiconductor–Electrolyte Interface (SEI) Built-In for Enhanced Photoelectrochemical (PEC) Processes

Molecules
The relentless consumption of fossil fuels and soaring CO2 emissions have plunged the world into an energy and environmental crisis. As society grapples with these challenges, the demand for clean, renewable, and sustainable energy solutions has never ...
Bartłomiej Leks, Aleksandra Parzuch, Nabila Nawaz, Justyna Widera-Kalinowska, Krzysztof Bienkowski, Renata Solarska   +5 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

New workflow for petrophysical evaluation of Visean unconventional organic rich reservoirs within Dnipro-Donets Depression

Геофизический журнал
Increasing the resource base and extraction of hydrocarbons remains one of the main tasks of engineers and scientists, and this is especially relevant in the war conditions in Ukraine.
Sviatoslav Iuras, Mykhailo Orlyuk, Viktoriia Drukarenko, Serhii levoniuk, Vasyl Karpyn, Taras Popadynets   +5 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source