Results 81 to 90 of about 3,613 (164)

Brain strain: Blood flow and metabolism in environmental extremes

Experimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak, Damian M. Bailey, Travis D. Gibbons, Philip N. Ainslie   +3 more
wiley   +1 more source

Effect of Isotropic and Anisotropic Permeability on Gas Production Behavior of Site NGHP-01-10D in Krishna-Godavari Basin

Energies
This study reports an investigation into both isotropic and anisotropic permeability effects on gas production behavior during depressurization-induced natural gas hydrate dissociation at site NGHP-01-10D in the Krishna-Godavari basin.
Monika Gandhi, Shadman Hasan Khan, Amit Arora, Chandrajit Balomajumder, Alberto Maria Gambelli   +4 more
doaj   +1 more source

CH4–C3H8 mixed gas hydrate behavior in natural marine sediments: influence of sediment type and dissociation pathways

Frontiers in Marine Science
The dissociation behavior of CH4–C3H8 mixed gas hydrates in natural marine sediments is critical to global carbon storage and marine biogeochemical cycles, but the effects of sediment composition and dissociation pathways remain unclear.
Peixiao Mao, Peixiao Mao, Judith M. Schicks   +2 more
doaj   +1 more source

Swelling Behavior of a Crosslinked pHEMA Hydrogel in pH and Salt Environments

Journal of Applied Polymer Science, Volume 143, Issue 38, October 10, 2026.
The swelling behavior of non‐ionic crosslinked poly hydroxyethyl methacrylate (pHEMA) is investigated in alkaline, acidic, and electrolyte solutions. The swelling behavior is affected by crosslinker concentration, pH, swelling time, and specific Ion‐pHEMA‐water interactions.
Joey Aarts, Hartmut Fischer, Olaf Adan, Henk Huinink   +3 more
wiley   +1 more source

Hydroprocessing of synthetic kerosene over a non‐sulphided Ni/Al2O3 catalyst: Impact of alcohols and ketones on alkene conversion

The Canadian Journal of Chemical Engineering, Volume 104, Issue 10, Page 5229-5241, October 2026.
Abstract Synthetic jet fuel containing non‐petroleum‐derived kerosene can be produced from synthetic kerosene obtained through processes that include a hydroprocessing step. The potential use of non‐sulphided (reduced) nickel supported on alumina (Ni/Al2O3) was evaluated as an alternative to sulphided catalysts to saturate alkenes in sulphur‐free ...
Garima Chauhan, Felix Link, Cibele Melo Halmenschlager, Arno de Klerk   +3 more
wiley   +1 more source

Durene conversion in a methanol‐to‐jet process: Exploring conversion at 150–350°C over different acid catalysts

The Canadian Journal of Chemical Engineering, Volume 104, Issue 10, Page 5267-5282, October 2026.
Abstract Acid catalyzed conversion of durene by isomerization, disproportionation, and transalkylation is of interest to the development of a methanol‐to‐jet process to reduce the amount of durene in the kerosene. It was of interest to determine whether durene conversion could be performed at a temperature lower than 350°C.
Aida G. Velasco Ortiz, Risha Raju, Arno de Klerk   +2 more
wiley   +1 more source

Computational analysis to assess hemodynamic forces in descending thoracic aortic aneurysms

The Journal of Physiology, Volume 604, Issue 19, Page 8112-8140, 1 October 2026.
Abstract figure legend Left: Pre‐processing. First, we perform the segmentation of the Computer Tomography angiorgraphy (angio‐CT) scans of a healthy patient, obtaining the surface of a healthy thoracic aorta with a Type III aortic arch. Then, we build nine ideal configurations with Descending Thoracic Aortic Aneurysm (DTAA), varying the aortic arch ...
Francesca Duca, Daniele Bissacco, Luca Crugnola, Chiara Faitini, Maurizio Domanin, Francesco Migliavacca, Santi Trimarchi, Christian Vergara   +7 more
wiley   +1 more source

Car engine diagnostics using a vacuum gauge

Transportation and Information Technologies in Russia
Background. Various methods are widely used in diagnosing the technical condition of automotive engines, but most require highly skilled personnel and sophisticated equipment.
Oleg Yu. Goncharov
doaj   +1 more source

Gas Measurements Reveal Fractional Degassing and Water Interaction During a Flank Eruption of Pacaya Volcano (Guatemala)

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract SO2 flux and gas composition were measured during the 2021 flank eruption of Pacaya Volcano (Guatemala). The SO2 flux, measured with Tropomi, gradually rose from ∼2 to ∼30 kg/s over a 5 month period before the eruption. Field UV camera data showed that >95% of the SO2 was emitted from the summit crater.
Robin Campion, Ali Zare, Sébastien Valade, Denis Legrand, Gustavo Chigna, Yves Moussallam   +5 more
wiley   +1 more source

The stationary all weather booms system with variable floatibility - «Stabonza» and «Stabonza-Shelf»

Известия Томского политехнического университета: Инжиниринг георесурсов, 2018
The reverance of the study is conditioned by the need of maintaining and upholding environmental standards and requirements in the field of trunk line transport, particularly at water services facilities.
Sultanmagomed Magomedtagirovich Sultanmagomedov, Robert Nailevich Kunafin, Timur Sultanmagomedovich Sultanmagomedov, Rustyam Rafikovich Khasanov, Igor Finsurovich Kantemirov   +4 more
doaj