Results 51 to 60 of about 47,924 (231)

Changes of Microstructures and Mechanical Properties in Commercially Pure Titanium after Different Cycles of Proposed Multi-Directional Forging

Metals, 2019
A newly proposed multi-directional forging (MDF) was successfully applied to a commercially pure titanium (CP Ti). Severe plastic deformation would result in significant and complex changes of microstructure and mechanical properties, so microstructure ...
Zhanguang Zheng, Xiaoying Zhang, Liang Xie, Longgui Huang, Teng Sun   +4 more
doaj   +1 more source

Influence of thermomechanical processing on coarse particles, grain structure, and mechanical properties of Al–Cu alloy rings

Journal of Materials Research and Technology, 2023
Rings made of 2219 Al alloy are typically manufactured by multi-directional forging (MDF) and ring rolling at 460 °C, followed by heat treatment. However, this process often results in coarse elongated grains and a large number of coarse Al2Cu particles,
Wenxue Zhang, Hailin He, Youping Yi, Shiquan Huang   +3 more
doaj   +1 more source

Reconceptualising temporality in young lives: exploring young people’s current and future livelihoods in AIDS-affected southern Africa [PDF]

, 2013
In recent years, anxieties have been expressed that the impacts of southern Africa's AIDS pandemic on young people today will damage their future livelihood prospects.
Abebe, Abebe, Abebe, Ainsworth, Ansell, Ansell, Bailey, Bissell, Blerk, Blerk, BOS, Bourdillon, Boyden, Bryceson, Cass, Chambers, Chant, Conticini, Crush, Dahlblom, Dorward, Evans, Grieco, Grosz, Haan, Hajdu, Hampshire, Harker, Heady, Hopkins, Horton, Horton, Jaiyebo, James, Jeffrey, Johnson-Hanks, Katz, Kesby, Langevang, Langevang, Lefoka, Loevinsohn, Mabala, MacDonald, Murray, Pain, Punch, Republic of Malawi, Robson, Robson, Teather, UNAIDS, Uprichard, Valentine, Worth, Yin   +55 more
core   +2 more sources

What characterises well‐connected schools? Exploring centrality in inter‐organisational school networks

British Educational Research Journal, EarlyView.
Abstract Within the educational literature, inter‐organisational school networks are commonly considered instruments for administration, management, and school improvement, but are rarely scrutinised as objects of study themselves. Conversely, in organisational studies, this perspective is given more prominence.
Ignacio Wyman, Paul Wilfred Armstrong
wiley   +1 more source

Enhanced Selectivity of Chalcogen Bonding over Halogen Bonding Catalyzed C‐glycosylation Through Differentiated Intermediate Activation

Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.
By harnessing chalcogen bonding (ChB) catalysis, an exclusive access into a highly stereoselective strain‐release C‐glycosylation pathway was discovered. This was surprisingly not replicable by the conceptually similar halogen bonding (XB) catalysis.
Hao Guo, Charles C. J. Loh
wiley   +2 more sources

Ch‐Ch‐Ch‐Ch‐Changes: The Impact of Supply Base Growth, Contraction, and Turnover on Firm Innovation

Journal of Operations Management, EarlyView.
ABSTRACT Modern supply chains are experiencing more disturbances due to regulatory shifts, rising sustainability standards, emerging or declining markets, and disruption to critical inputs. Some firms react by strengthening existing supplier partnerships to resist changes, while others reconfigure relationships with suppliers to embrace changes ...
Jordan M. Barker, Ellie C. Falcone, Yang Sophie Yang‐Sun, Tingting Yan   +3 more
wiley   +1 more source

New Advances of Degradable Magnesium‐Based Metal Biomaterials in the Field of Orthopedics

Rare Metals, EarlyView.
ABSTRACT Based on their outstanding biomechanical properties and superior osteogenic activity, magnesium (Mg) and its alloys have been extensively investigated for their biocompatibility and therapeutic efficacy in treating fractures and bone defects.
Jia‐Nan Yu, Shao‐Sheng Jia, Rong‐Bang Sun, Tong Zhang, Ling‐Chuang Bai, Di Mei, Shi‐Jie Zhu, Lan Chen, Shao‐Kang Guan   +8 more
wiley   +1 more source

So near and yet so far: Harmonic radar reveals reduced homing ability of nosema infected honeybees [PDF]

, 2014
Pathogens may gain a fitness advantage through manipulation of the behaviour of their hosts. Likewise, host behavioural changes can be a defence mechanism, counteracting the impact of pathogens on host fitness.
Clark, Suzanne J., Lim, Ka S., McMahon, Dino P., Osborne, Juliet L., Paxton, Robert J., Pull, Christopher D., Wolf, Stephan   +6 more
core   +1 more source

Advances in research on impulse hydro‐turbine technology

River, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li, Ye Zhou, Hao Zhang, Guanglei Xiao, Yanwei Li, Zhongxin Gao, Zhiyang Lu, Shangqi Li   +7 more
wiley   +1 more source

Numerical Simulation and Experimental Investigation on Multi-direction Forging Behaviors of High Purity Aluminum

Cailiao gongcheng, 2017
The effect of forging pass on the deformation structure of high purity aluminum at room temperature during multi-direction forging process was investigated by experiment.
ZHU Qing-feng, ZHANG Yang, ZHU Cheng, BAN Chun-yan, CUI Jian-zhong   +4 more
doaj   +1 more source