Results 91 to 100 of about 47,520 (268)

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

Journal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo, Simoni Margareti Plentz Meneghetti, Mario Roberto Meneghetti, Janaína Heberle Bortoluzzi   +3 more
wiley   +1 more source

Influence Mechanism of Structural Parameters of a Novel Sleeve‐Shaft Counterrotating Hydrodynamic Cavitation Reactor on Cavitation Characteristics and Performance

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study systematically investigates the cavitation characteristics of a novel sleeve‐shaft counterrotating (SSCR) hydrodynamic cavitation reactor using computational fluid dynamics (CFD). Based on the RANS framework combined with the SST k–ω turbulence model and the Zwart–Gerber–Belamri cavitation model, the temporal–spatial evolution of ...
Sitong Guan, Yongxing Song, Peng Zhuang, Jiahui Wang, Zhaoxin Ma, Yi Ge, Weibin Zhang, Jingting Liu   +7 more
wiley   +1 more source

Simulative and Experimental Investigation of Vibration Transfer Path at Gearboxes

Applied Sciences
Condition monitoring systems are widely used in gearboxes. Gears are one of the most crucial components for power transmission. Hence, the optimal sensor positions for condition monitoring of gears should be investigated to maximize reliability and to ...
Erich Knoll, Chaokai Chen, Michael Otto, Karsten Stahl   +3 more
doaj   +1 more source

Cooling Holes in Polymer Spur Gears: A Critical Analysis of Heat Dissipation Benefits and Mesh Stiffness Penalties

Journal of Applied Polymer Science, EarlyView.
Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar, Ahmed Samet, Ahmed Hammami, Nuno Dourado, Ali Akrout, Mohamed Haddar   +5 more
wiley   +1 more source

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

The Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen, Ivo Jacobs, Kristina Kverková, Lona Lalić, Alexandra Polonyiová, Patrik Stehlík, Stephan A. Reber, Mathias Osvath   +7 more
wiley   +1 more source

A Century of Learning: The Story of ESA's Education Committee, 1918–2025

The Bulletin of the Ecological Society of America, EarlyView.
Abstract The Education Committee and its precursors have been highly influential within the Ecological Society of America. Here we document the Education Committee's history, from its origins in reviewing curricular materials through major contributions to ecological literacy, teaching innovation, diversity initiatives, and professional development ...
Kenneth M. Klemow, Alan R. Berkowitz, Carmen R. Cid, Tom A. Langen, Margaret D. Lowman, George Middendorf, Julie A. Reynolds   +6 more
wiley   +1 more source

Pectinase‐Based Bioprocesses for Circular Bioeconomy and Sustainable Industrial Development

Biotechnology and Bioengineering, EarlyView.
This picture demonstrates a unified strategy for sustainable pectinase production, focusing on microbial bioproduction, innovative strategies in enzyme engineering (Protein engineering, rational enzyme design, directed evolution and heterologous expression) and various applications in industry, including food, textiles, pulp and paper, agriculture and ...
Nisha Sharma, Dimple Tanwar, Usha Grewal, Murugesan Mohana Keerthi, Yogesh K. Ahlawat, Nitin Pandey, Chirag G. Makvana   +6 more
wiley   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

Biological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief, Sandra Bouwhuis, Anja Globig, Anne Günther, Wouter Courtens   +4 more
wiley   +1 more source

AI‐Enabled Circular Business Model Transition for Mitigating Climate Change: A Natural Resource‐Based View Perspective on Business Strategies

Business Strategy and the Environment, EarlyView.
ABSTRACT The role of artificial intelligence (AI) in achieving sustainability goals has garnered attention in academic literature. While AI has been argued to be crucial in addressing circularity challenges, organizations face challenges in configuring a business model.
Jian Wang, Sanjay Chaudhary, Muhammad Mustafa Kamal, Salwa Saleh Almasabi, Sándor Remsei   +4 more
wiley   +1 more source

Precipitation mechanism of dispersed carbide in a gear carburizing layer and its effect on properties

Engineering Reports
Heat treatment is carried out on 20MnCr5 gear steel using a cycle carburizing process. The dispersed carbide precipitation mechanism in the carburized layer of 20MnCr5 gear steel is revealed, and the metallographic organization, microhardness, wear ...
Liang Tan, Jiqing Tan, Qiping Lei, Shengwen Hou, Hua Zhong   +4 more
doaj   +1 more source