Results 111 to 120 of about 14,309 (273)

Energy storage from a wind, tidal, and wave farm via hydrogen

Frontiers in Energy Research
As renewable energy penetration increases, energy storage becomes essential. Hydrogen offers a viable option for seasonal storage, with reversible solid oxide cells enabling both hydrogen production via electrolysis and electricity generation from stored
Jessica Guichard, Robert Rawlinson-Smith, Daniel Coles, Deborah Greaves   +3 more
doaj   +1 more source

United States Geological Survey Report TEI-692

, 1957
: "A procedure for the determination of thorium in the concentration range of 0.2 to 10 parts per million ThO2 in felsic or mafic rocks. Thorium is extracted by mesityl oxide and purified by iodate precipitation from nitric acid medium containing ...
Grimaldi, Frank S., Levine, Harry
core  

Surprising concentrations of hydrogen and non-geological methane and carbon dioxide in the soil [PDF]

Due to its potential use as a carbon-free energy resource with minimal environmental and climate impacts, natural hydrogen (H2) produced by subsurface geochemical processes is today the target of intensive research.
Sivan, Malavika, Etiope, G, Mazzoli, Claudio, Mazzoli, C, Laemmel, T, Benà, Eleonora, Ciotoli, G, Sivan, M, Etiope, G., Haghipour, Negar, Sassi, R., Sassi, R, Röckmann, Thomas, Squartini, A., Röckmann, T., Ciotoli, Giancarlo, Squartini, Andrea, Benà, E., Etiope, Giuseppe, Szidat, S., Sivan, M., Haghipour, N., Mazzoli, C., Haghipour, N, Szidat, S, Szidat, Sönke, Ciotoli, G., Benà, E, Laemmel, Thomas, Röckmann, T, Laemmel, T., Squartini, A, Sassi, Raffaele   +32 more
core   +1 more source

Dry Reforming of Biogas Over Li–Ni–Al Catalysts: Influence of Li Incorporation Method

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Hydrogen is a promising source of energy, given the current context of depletion of fossil fuels and increased emissions of greenhouse gases. The technological route for obtaining this fuel from the dry reforming of biogas has received considerable attention from researchers, as it converts the polluting gases CH4 and CO2 into synthesis gas ...
Cristine Munari Steffens, Oscar W. Perez‐Lopez   +1 more
wiley   +1 more source

Numerical Investigation of Transmission and Sealing Characteristics of Salt Rock, Limestone, and Sandstone for Hydrogen Underground Energy Storage in Ontario, Canada

Mining
With the accelerating global transition to clean energy, underground hydrogen storage (UHS) has gained significant attention as a flexible and renewable energy storage technology.
Peichen Cai, Shunde Yin
doaj   +1 more source

A Reproducible SEM Surface Imaging Protocol for Monitoring Microstructural Changes During Gas–Rock Interactions

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Reliable characterization of mineralogical and textural changes in rock samples is essential for understanding fluid–rock interactions, particularly in experimental studies simulating subsurface conditions. This study presents a reproducible protocol for scanning electron microscopy (SEM) analysis of rock surfaces before and after exposure to ...
Berta Ordóñez‐Casado, Timea Kovács, Sara Roces, Edgar Berrezueta   +3 more
wiley   +1 more source

Analysis of natural and technological factors of changes in exogeodynamic conditions of mine No. 2 of the Stebnytsky potassium deposit as a consequence of self-rehabilitation flooding

Мінеральні ресурси України
The Stebnytsy deposit of potash salts is located in the foothills of the Ukrainian Carpathians. The engineering-geological and hydrogeological conditions of the field’s operation due to the development of a thick layers of loose and water-soluble rocks ...
Yu. L. Zabulonov, Z. Z. Khevpa, I. D. Bahrii, Ia. M. Kryl, S. A. Vyzhva   +4 more
doaj   +1 more source

Subsurface underground hydrogen storage [PDF]

In the transition to sustainable energy, hydrogen emerges as a crucial carrier, addressing the intermittency of renewable sources. However, its storage poses challenges due to its unique properties, notably in surface-based systems.
Elberry, Ahmed,, Elberry, A., Thakur, Jagruti,, Thakur, J., Elberry, A. ; id_orcid   +4 more
core   +1 more source

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source

Subchronic Exposure to Arsenic and Nickel Triggers Nitrosative Stress and Histological Alterations in the Rat Liver

Journal of Applied Toxicology, EarlyView.
ABSTRACT Environmental exposure to heavy metals poses a threat to human health. Several studies documented harmful effects on the liver after arsenic and nickel exposure at concentrations beyond permissible limits. Nevertheless, the impact of a simultaneous exposure to both elements on hepatic biochemistry and histology remains unelucidated. Therefore,
Thainá Iasbik‐Lima, Luiz Otávio Guimarães‐Ervilha, Isabela Pereira da Silva Bento, Renê Chagas da Silva, Mariana Machado‐Neves   +4 more
wiley   +1 more source