Results 101 to 110 of about 2,144 (243)

INFLUENCE OF HELICAL CUTTING-EDGE ANGLE ON END-MILLING STABILITY

Cutting & Tools in Technological System
Increasing productivity, machining accuracy and efficient use of resources are important priorities for companies that manufacture competitive products. One of the main problems that hinders these processes is the vibration that occurs during cutting.
Sergei Dyadya, Olena Kozlova, Pavlo Tryshyn, Denys Yakhno, Denys Dziuba   +4 more
openaire   +2 more sources

Evaluating Pt Nanoparticle Electrocatalyst Stability on Corrosion Free Carbon Supports Using Identical Location TEM

Small, EarlyView.
Pt nanoparticle stability during accelerated stress testing at high anodic potentials was investigated using identical location TEM on a corrosion‐resistant boron‐doped diamond (BDD) electrode. Changes in nanoparticle size, position, and response with respect to nearest neighbor distance on a particle‐by‐particle basis were tracked using machine vision
Daniel Houghton, Yisong Han, Richard Beanland, Louis Godeffroy, Frédéric Kanoufi, Viacheslav Shkirskiy, Jonathan Sharman, Julie V. Macpherson   +7 more
wiley   +1 more source

Effects of Helix Angle Variations on Stability of Low Immersion Milling

International Journal of Industrial Engineering and Production Research, 2008
The stability behavior of low immersion helical end milling processes is investigated in this paper. Low radial immersion milling operations involve interrupted cutting which induces chatter vibration under certain cutting conditions. Time Finite Element
B. Moetakef Imani, Kazemi Nasrabadi, Kazemi Sadeghi   +2 more
doaj  

Vine Tendril‐Inspired Cold‐Programmable Shape‐Memory Polymer Composites Using Sugar Beet Pulp

Small, EarlyView.
Vine tendrils inspire a bio‐derived, cold‐programmable shape‐memory polymer composite (SMPC). Magnetically guided sugar beet pulp creates mesoscale heterogeneity within a glassy matrix, producing built‐in mechanical asymmetry for rapid, solvent‐free programming by simple stretching.
Wei Huang, Vikramjeet Singh, Yu Wang, Junhao Chen, Mingjing Zhang, Gary J. Lye, Helen C. Hailes, Luna Jiang, Eral Bele, Manish K. Tiwari   +9 more
wiley   +1 more source

Potential for Reducing Emissions by Regulating O2, CO, and H2O in the Recirculation Gas in Iron Ore Sintering

steel research international, EarlyView.
This study investigates the potential for reducing emissions during the sintering process by selectively adjusting the O2, CO, and H2O content in the recirculation gas. Adjusting these components positively affects the sintering process, enabling the coke breeze content in the sinter mixture to be reduced.
Jan Eisbacher‐Lubensky, Sigrid Pichler, Nina Schlemmer, Michaela Böberl   +3 more
wiley   +1 more source

Analyses of the Deformability and Chemistry of Non‐Metallic Inclusions in QT Steels With Increased Recycling‐Induced Tramp Element Content

steel research international, EarlyView.
This work uses high‐temperature dilatometry to examine how the tramp elements Cu, Ni, and Sn affect the deformability of non‐metallic inclusions and matrix in quench‐and‐temper steel. Mg‐bearing inclusions deform less than Mg‐free ones. Copper lowers formability. Nickel increases deformability.
Julian Cejka, Isabell Gruber, Gerald Klösch, Susanne Katharina Michelic   +3 more
wiley   +1 more source

Multifunctional and Recyclable Bio‐Based Vitrimers With Tunable Properties for Sustainable Digital Light Processing 4D Printing

SusMat, EarlyView.
A bio‐based, photocurable vitrimer system is developed for sustainable digital light processing (DLP) 4D printing. The material exhibits tunable thermomechanical properties, shapes memory and reconfigurability, and supports repair, reprocessing, and reprinting through dynamic covalent bond exchange, offering a recyclable and multifunctional platform ...
Yunmi Chae, Yeongseo Gwon, Woohwa Lee, Chang‐Geun Chae, Hyun Kim, Du Yeol Ryu, Yong Seok Kim, Dong‐Gyun Kim, Sungmin Park   +8 more
wiley   +1 more source

Association Characteristics and Potential Mechanisms of Aging, Gut Microbiota, and Hearing Loss

Integrative Zoology, EarlyView.
The study found that aging leads to unchanged gut microbiota alpha diversity but an increase in Bacteroidetes and a decrease in Firmicutes at the phylum level, with specific genera, species, and functional pathways co‐associated with aging and hearing loss. Through constructing a microbe‐metabolite network, it revealed the mechanism by which protective
Cheng Cheng, Lu Wang, Runhan Li, Wenkai Lai, Chongkui Sun, Jianguo Cui, Bicheng Zhu, Jiang Zhang   +7 more
wiley   +1 more source

Five Principles for a New Economic Consensus

Global Policy, EarlyView.
ABSTRACT This paper puts forward five principles for a new economic consensus, which could serve as a modern alternative to the Washington Consensus of 35 years ago. They are built on new ideas that have gained currency in economics over the past three decades. We also provide examples of the policies that could follow from these principles.
Timothy Besley, Andrés Velasco
wiley   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer, Abdulrahman Alsuhaibani, Charlène Bouchaud, Elora Chambraud, Vladimir Dabrowski, Hatem Djerbi, Fabien Lesguer, Hervé Monchot, Paul Picavet, Louise Purdue, Bertrand Riba, Shadi Shabo   +11 more
wiley   +1 more source