Results 101 to 110 of about 1,596,362 (297)

Study of the System of Forces Acting on the Cutter-Oscillator Under Conditions of Turning With Vibration

Shock and Vibration
This paper investigates the forces acting on a cutter-oscillator during free longitudinal orthogonal turning under regenerative self-oscillation conditions.
Pavlo Tryshyn, Serhiy Dyadya, Olena Kozlova   +2 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Effects of machining parameters, ultrasonic vibrations and cooling conditions on cutting forces and tool wear in meso scale ultrasonic vibrations assisted end-milling (UVAEM) of Ti–6Al–4V under dry, flooded, MQL and cryogenic environments – A statistical analysis

Journal of Materials Research and Technology
Ti–6Al–4V, an alloy of titanium has recently gained focus of research to overcome its machinability challenges. Miniaturization in devices has forced a shift towards micro and meso-scale machining.
Adil Rauf, Muhammad Ali Khan, Syed Husain Imran Jaffery, Shahid Ikramullah Butt   +3 more
doaj   +1 more source

Memory and Resting‐State Connectivity in Acute Transient Global Amnesia: A Case–Control fMRI Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Transient global amnesia (TGA) is a striking model of isolated amnesia. While hippocampal lesions are well described, the network‐level mechanisms and the precise neuropsychological profile remain debated. Our objective was thus to characterize functional and neuropsychological correlates of acute TGA and their ...
Elias El Otmani, Emmanuel Barbeau, Béatrice Lemesle, Emilie Milongo‐Rigal, Sophie Fernandez, Sandrine Charpentier, Jean‐François Albucher, Nicolas Raposo, Fabrice Bonneville, Patrice Péran, Jérémie Pariente   +10 more
wiley   +1 more source

Evaluation of Digital Technologies for Home‐Based Assessment in People With Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Digital technologies hold promise for transforming healthcare by enhancing personalized treatments and offer valuable opportunities to improve patient care. Here, we evaluated several novel, self‐administered, home‐based, digital endpoints for their association with corresponding conventional standard clinical measures (primary) in ...
Arne Mueller, Vanessa Vallejo, Mónica Povedano Panadés, Orla Hardiman, Véronique Danel‐Brunaud, Senda Ajroud‐Driss, Philippe Couratier, Jeremy Shefner, Anna Gokey, Mike DiCesare, Erin Lennox, Jens Praestgaard, Lucie Brujin, Peggy Allred, Ram Miller   +14 more
wiley   +1 more source

Estimates of the bistable region in metal cutting [PDF]

, 2008
The classical model of regenerative vibration is investigated with new kinds of nonlinear cutting force characteristics. The standard nonlinear characteristics are subjected to a critical review from the nonlinear dynamics viewpoint based on the ...
Dombovari, Zoltan, Wilson, RE, Wilson, R. Eddie, Stepan, Gabor, Stepan, G   +4 more
core   +1 more source

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane, Valentina Giunchiglia, Michael C. B. David, Magdalena A. Kolanko, William R. Trender, Peter J. Hellyer, Harmeena Kaur, David J. Sharp, Christopher Carswell, Paresh A. Malhotra, Adam Hampshire   +10 more
wiley   +1 more source

Simulation of low rigidity part machining applied to thin-walled structures [PDF]

, 2010
The aim of this study is to evaluate the modelling of machining vibrations of thin-walled aluminium work- pieces at high productivity rate. The use of numerical simulation is generally aimed at giving optimal cutting conditions for the precision and the ...
Arnaud, Lionel, Lionel Arnaud, Grégoire Peigné, Sébastien Seguy, Peigné, Grégoire, Gonzalo, Oscar, Oscar Gonzalo, Haritz Jauregi, Seguy, Sébastien, Jauregi, Haritz   +9 more
core   +1 more source

Impact of cutting forces on surface quality in finish face milling of compacted graphite iron with CBN and nitride ceramic tools

Технічна інженерія
The article presents the results of studies to determine the influence of cutting forces on the quality parameters of machined surfaces as a result of finishing face milling of products made of compacted graphite cast iron (CGI) using round cutting ...
S.I. Radkevych
doaj   +1 more source

Some Effects of the Cutting Fluid on Cutting Force

Journal of the Japan Society of Precision Engineering, 1966
各種の組成を有する切削油剤を用いて, 切削油剤の潤滑効果と冷却効果が, 切削抵抗に及ぼす影響を調べた。超硬バイトによる車軸鋼の切削の場合につき, 普通鋼の高温における機械的性質の変化を考慮に入れて考察した。またそれらに関連して, 切削油剤の作用について, 定性的に一般的考察をした。1) 削り速度20m/min～40m/minにおいては, いずれの切削油剤も有効であるが, 中でも, 極圧潤滑性に富むものの方が, 冷却性に富むものより有効である。水だけでも明らかに切削抵抗を軽減する作用はあるが, その変動係数は比較的大きく, 特に, 削り速度20m/minの場合には, 乾切削の場合よりも大きい。2) 削り速度40m/min以上においては, 塩素系添加剤のものは効果を失い, かえって切削抵抗は高くなる ...
Ryozo FURUICHI, Kentaro TAMAMURA
openaire   +2 more sources