Results 41 to 50 of about 10,688,728 (289)
Chemoautotrophy at Deep-Sea Vents: Past, Present, and Future [PDF]
Oceanography, 2012 Chemolithoautotrophic microorganisms are at the nexus of hydrothermal systems by effectively transferring the energy from the geothermal source to the higher trophic levels.
Stefan M. Sievert, Costantino Vetriani
doaj
Recent hydrothermal systems of Kamchatka [PDF]
Geothermics, 1970 Abstract Study of the largest manifestations of the recent hydrothermal activity in Uzon-Semyachik, Pauzhetka-Kambalny and other regions in Kamchatka enable us to conclude: in the area of recent volcanism characterized by a general increase of conductive heat flow, some regions can be distinguished with an especially intense geothermal regime ...
Vakin E.A. +5 more
openaire +1 more source
Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora
FEBS Open Bio, EarlyView.This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi +6 more
wiley +1 more source
Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies
Advanced Functional Materials, EarlyView.Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke +3 more
wiley +1 more source
CHNOSZ: Thermodynamic Calculations and Diagrams for Geochemistry
Frontiers in Earth Science, 2019 Thermodynamic calculations are an essential tool for many areas of geochemistry. Thermodynamics provides a framework for the quantitative description and prediction of the solubilities and relative stabilities of different minerals, metal transport in ...
Jeffrey M. Dick, Jeffrey M. Dick
doaj +1 more source
Chitin‐Derived Carbon‐Metal Functional Materials
Advanced Functional Materials, EarlyView.Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang +7 more
wiley +1 more source
Overview of geothermal resource exploration and development in North Africa
Deep Underground Science and EngineeringGeothermal exploration and development in North Africa have advanced significantly, driven by the region's rich geothermal resources and rising energy demand.
Meryem Redouane
doaj +1 more source
Numerical modeling of phase separation at Main Endeavour Field, Juan de Fuca Ridge
Geochemistry, Geophysics, Geosystems, 2013 Before being disrupted by a magmatic event in 1999, the vent temperatures and salinities along the axis of the Main Endeavour Field on the Juan de Fuca Ridge exhibited a quasi‐steady spatial gradient in which the southern vent fluids were hotter and less
Shreya Singh +2 more
doaj +1 more source
Energies, 2020 Cation-exchange capacity (CEC) measurements are widely used to quantify the smectite content in altered rocks. Within this study, we measure the CEC of drill cuttings in four wells from three different high-temperature geothermal areas in Iceland.
Tobias Björn Weisenberger +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The 2D carbon‐supported Gd–CuO exhibits strong interfacial electronic coupling, abundant oxygen vacancies, and highly exposed active sites, enabling efficient CO enrichment and C─C coupling toward selective and durable CO2‐to‐C2H4 conversion. ABSTRACT Copper‐based catalysts are promising for electrochemical CO2 reduction toward value‐added chemicals ...
Xueya Zhu +11 more
wiley +1 more source