Results 41 to 50 of about 251,961 (304)

First Principles Calculations of Shock Compressed Fluid Helium

, 2006
The properties of hot dense helium at megabar pressures were studied with two first-principles computer simulation techniques, path integral Monte Carlo and density functional molecular dynamics.
B. Militzer, P. Loubeyre, T. Guillot, Y. B. Zeldovich   +3 more
core   +1 more source

Microstructure evolution during homogenization and hot workability of 7055 aluminum alloy produced by twin-roll casting

Journal of Materials Research and Technology, 2021
7055 aluminum alloy was produced by twin-roll casting (TRC) and by conventional mold casting (MC). Homogenization at 465 °C for 24 h with natural cooling was applied, followed by uniaxial hot compression tests to verify the hot workability of the alloy ...
Xiaoming Qian, Xinle Li, Yong Li, Guangming Xu, Zhaodong Wang   +4 more
doaj   +1 more source

Physical modelling of amorphous thermoplastic polymer and numerical simulation of micro hot embossing process [PDF]

, 2017
Micro hot embossing process is considered as one of the most promising micro replication processes for manufacturing of polymeric components, especially for the high aspect ratio components and large surface structural components.
Barriere, T., Cheng, G., Gelin, J-C., Sahli, M.   +3 more
core  

Flow stress and hot deformation activation energy of 6082 aluminium alloy influenced by initial structural state [PDF]

, 2019
Stress-strain curves of the EN AW 6082 aluminium alloy with 1.2 Si-0.51 Mg-0.75 Mn (wt.%) were determined by the uniaxial compression tests at temperatures of 450-550 degrees C with a strain rate of 0.5-10 s(-1).
Kawulok, Petr, Kawulok, Rostislav, Opěla, Petr, Očenášek, Vladivoj, Rusz, Stanislav, Schindler, Ivo   +5 more
core   +1 more source

Natural Products as Geroprotective Modulators in Diabetic Nephropathy: A Mechanistic Framework Integrating Aging Hallmarks and the AMPK–SIRT1–Nrf2 Axis

Aging and Cancer, EarlyView.
Natural products target the aging kidney in diabetic nephropathy by restoring the AMPK–SIRT1–Nrf2 axis, reducing oxidative stress, inflammation, fibrosis, and cellular senescence while enhancing mitochondrial biogenesis and antioxidant defenses.
Sherif Hamidu, Latif Adams, Eunice Ampem‐Danso, Justice Kumi, Abigail Aning, Fatima Hamidu, Mustapha Abdul Mumin Mohammed, Ayuba Nii Darku Ankrah, Seth Kwabena Amponsah   +8 more
wiley   +1 more source

SPG4 and Dementia: Expanding the Clinical Spectrum

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hereditary spastic paraplegia (HSP) is a group of disorders characterized by progressive spasticity and lower limb weakness, with mutations in SPG4/SPAST being the most common cause. Detailed studies and clinical and molecular comparisons across different populations are missing.
Emanuele Panza, Arun Meyyazhagan, Eliseo Picchi, Gustavo Ribas, Ingrid Faber, Ryosuke Miyamoto, Preethi Basavaraju, Paolo Eusebi, Haripriya Kuchi Bhotla, Mario Stasi, Fabrizio Gaudiello, Francesco Patti, Filippo Maria Santorelli, Marcondes Cavalcante França Jr, José Luiz Pedroso, Orlando Graziani Povoas Barsottini, Hélio Afonso Ghizoni Teive, Peter Henry St George‐Hyslop, Toshitaka Kawarai, Antonio Orlacchio   +19 more
wiley   +1 more source

Deformation Characteristic and Constitutive Modeling of 2707 Hyper Duplex Stainless Steel under Hot Compression

Metals, 2016
Hot deformation behavior and microstructure evolution of 2707 hyper duplex stainless steel (HDSS) were investigated through hot compression tests in the temperature range of 900–1250 °C and strain rate range of 0.01–10 s−1.
Huabing Li, Weichao Jiao, Hao Feng, Xinxu Li, Zhouhua Jiang, Guoping Li, Lixin Wang, Guangwei Fan, Peide Han   +8 more
doaj   +1 more source

Recurrent Hypothermia and Autonomic Dysfunction Secondary to Shapiro Syndrome

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 44‐year‐old man presented with recurrent hypothermia, diaphoresis and hypertension. Extensive investigation for infectious, inflammatory, metabolic and endocrine aetiologies was negative. MR scan of the brain demonstrated no lesions but revealed callosal dysgenesis, consistent with Shapiro syndrome.
Naveen Kumar, Jeremy Johnson, Susanne Watkins, Eoin Mulroy   +3 more
wiley   +1 more source

Enhanced creep resistance in Mg-Y-Nd alloy via regulating prior thermo-mechanical treatment

Journal of Magnesium and Alloys
In this study, the tensile creep behavior of a hot-rolled Mg-4Y-3.5Nd alloy subjected to different prior thermo-mechanical treatments was investigated at 220 ℃.
Zhirou Zhang, Qinghuan Huo, Yuxiu Zhang, Gantao Zhao, Hiromi Nagaumi, Xuyue Yang   +5 more
doaj   +1 more source

Flow Stress Behavior of 15%SiC_P/8009 Aluminum Matrix Composite During Hot Compression Deformation

Journal of Aeronautical Materials, 2017
The flow stress behavior of 15%SiCP/8009 aluminum matrix composite at deformation temperature of 400-550 ℃ and strain rate of 0.001-1 s-1 was studied by hot compression testing on the Gleeble-3500 thermal-mechanical simulator.
WANG Yu, TENG Jie, CHEN Shuang, LUO Haibo, TANG Liulian, ZHANG Hui   +5 more
doaj   +1 more source