Results 111 to 120 of about 6,747 (255)

Ultrasonographic and Endoscopic Findings of Pancreatic Adenocarcinoma With Duodenal Invasion in a Brown Bear (Ursus arctos)

Veterinary Radiology &Ultrasound, Volume 67, Issue 4, July 2026.
ABSTRACT This report describes a 25‐year‐old, intact male brown bear (Ursus arctos) presenting with weight loss, diarrhea, melena, apathy, and a 12% hematocrit. Ultrasound showed proximal duodenal wall thickening with submucosal cysts and a large, heterogeneous, highly vascularized mass in the descending duodenum, containing small gas pockets and ...
Mariana Giendruczak de Souza, Arthur Carlos da Trindade Alves, Bernardo de Paula Miranda, Felipe Kataoka, Bruna Patrícia Siqueira Raimundo, Daniela Oliveira Rocha, Daniel Guimarães Ubiali, Gabriela Castro Lopes Evangelista, Marcus Antônio Rossi Feliciano   +8 more
wiley   +1 more source

Enhancing magnetocaloric performance in Dy5−xHoxB2C5 (x = 0, 1, 2) compounds for hydrogen liquefaction

APL Energy
Magnetic refrigeration based on the magnetocaloric effect has shown promising potential for hydrogen liquefaction. However, the lack of high-performance magnetic refrigerant materials operating in the liquid hydrogen temperature range significantly ...
Haobo Sun, Lu Tian, Jianjian Gong, Zhenxing Li, Zhaojun Mo, Guodong Liu, Jun Shen   +6 more
doaj   +1 more source

Comparative energy and exergy analysis of ortho-para hydrogen and non-ortho-para hydrogen conversion in hydrogen liquefaction

This study reports the comparative energy and exergy analysis of ortho-para hydrogen and non-ortho-para hydrogen conversion in hydrogen liquefaction process.
Oko, Eni, Ahmad, Abdurrazzaq, Ibhadon, Alex   +2 more
core   +1 more source

Synthesis and Evaluation of Novel Ruthenium on Dysprosium‐Praseodymium Oxide Catalysts for Ammonia Synthesis and Decomposition in the Hydrogen Energy Vector Transition

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
Adding dysprosium to a praseodymium oxide support led to an increase in ammonia decomposition activity, ammonia synthesis activity, improved catalyst stability, and improved electron transfer to the ruthenium. Currently, there is a push to reduce reliance on hydrocarbon fuels for energy storage by using hydrogen carriers.
Samuel M. Drummond, Jennifer Naglic, Thossaporn Onsree, Alexis Allegro, Sarah Stofik, Patrick Holcombe, Jochen Lauterbach   +6 more
wiley   +1 more source

Study of hydrogen liquefaction process through modelling and simulation

Hydrogen is viewed as a promising alternative energy source to reduce dependence on conventional fuels, helping to tackle issues such as environmental challenges (climate changes) coming especially from the energy sector.
Ahmad, Abdurrazzaq
core   +1 more source

From Citrus to Cymene: Understanding the Hydrothermal Conversion of Limonene

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
When life gives you limonene… Hydrothermal conversion and pyrolysis of limonene give two distinct sets of products, arising from differing reaction cascades. While p‐cymene dominates in the presence of water, indicative of an isomerisation/aromatisation pathway, pyrolysis favours cracking and loss of carbon affording an m‐xylene rich aromatic mix.
Jack Steel, Alexander K. L. Yuen, Alejandro Montoya, Christopher Barnett, Anthony F. Masters, Thomas Maschmeyer   +5 more
wiley   +1 more source

Identifying the Thermodynamic Driving Force of Metal Extraction by Hydrophobic Eutectic Solvents

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
Solvent extraction (SX) in hydrophobic eutectic solvent (HES) appears as an extension rather than a “revolution” of SX in common organic diluents for a given neutral extractant. A detailed thermodynamic and spectroscopic study shows that SX in HES imposes an enthalpic penalty but lowers the entropy cost of Eu3+ transfer, leading to enhanced metal ...
Inês C. M. Vaz, Maísa Saldanha Pinheiro, Felipe Olea, Luigi Cirillo, Giorgia Mannucci, Matteo Busato, Paola D’Angelo, Rui Santos, Margarida Bastos, Luís M. N. B. F. Santos, João A. P. Coutinho, Nicolas Schaeffer   +11 more
wiley   +1 more source

Genetic algorithm-based optimization method for the large-scale hydrogen liquefaction system

Energy Storage and Saving
Liquid hydrogen (LH2) presents promising prospects for large-scale storage and transportation applications. However, its widespread adoption is limited by the high energy demand of hydrogen liquefaction.
Zixin Zhang, Xiufang Liu, Ze Zhang, Hongyu Lv, Kunyu Deng, Liang Chen, Shuangtao Chen, Yu Hou   +7 more
doaj   +1 more source

Electrodeposited MnCo and MnNiCo Spinels for Anion Exchange Membrane Direct Ammonia Fuel Cell Cathodes: An Alternative to Platinum

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
Electrodeposited MnCoOX and MnNiCoOX spinels on Ni foam are evaluated as binder‐free, platinum group metal‐free cathodes in direct ammonia fuel cells. MnCoOX matches and surpasses Pt in oxygen reduction performance while tolerating ammonia crossover, whereas Ni incorporation dilutes the active Co–Mn sites and degrades performance.
Mehmet Turan Görüryilmaz, Karuppasamy Dharmaraj, Iris Dorbandt, Erno Kemppainen, Thorsten Schultz, Norbert Koch, Xuyun Guo, Valeria Nicolosi, Rutger Schlatmann, Michelle P. Browne, Sonya Calnan   +10 more
wiley   +1 more source

Analysis of a supercritical hydrogen liquefaction cycle [PDF]

, 2008
Includes bibliographical references (p. 72-76).Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.In this work, a supercritical hydrogen liquefaction cycle is proposed and analyzed numerically.
Staats, Wayne Lawrence
core