Results 101 to 110 of about 44,195 (310)

Radial Stiffness of Combined Journal and Thrust Hydrostatic Bearing. [PDF]

open access: yes, 2016
The paper presents the results of theoretical analysis of the effect of supply pressure and rotational speed on the radial stiffness of the integrated angular cylindrical–face hydrostatic bearings designed for precise technological devices.
Sikora, Małgorzata
core  

On the mechanics of chip formation in Ti–6Al–4V turning with spindle speed variation

open access: yesInternational Journal of Machine Tools and Manufacture, 2014
Abstract Titanium alloys are hard-to-cut materials and need to be machined at relatively low cutting speeds with obvious negative consequences on the profitability of machining. In order to enhance material removal rate (MRR), a strategy that relies on higher depths of cut could be chosen if vibrational issues due to regenerative chatter did not ...
CHIAPPINI, ELIO   +4 more
openaire   +2 more sources

Mechanical Fatigue in Liquid‐Metal Interconnects: Failure Mechanism Analysis and Validation of Improvement Strategies

open access: yesAdvanced Materials Technologies, EarlyView.
Multi‐million cycle reliability for liquid metal stretchable electronics is achieved through a continuous cycle of mechanical testing, failure mode and mechanism analysis and implementing subsequent mitigation strategies. ABSTRACT Stretchable electronics that combine mechanical compliance with reliable electrical performance are essential for ...
Lennert Purnal   +8 more
wiley   +1 more source

NNMT Orchestrates Metabolic‐Epigenetic Reprogramming to Drive Macrophage‐Myofibroblast Transition in Hypertrophic Scarring

open access: yesAdvanced Science, EarlyView.
In macrophage‐myofibroblast transition, upregulated NNMT depletes S‐Adenosylmethionine‌ (SAM) and nicotinamide adenine dinucleotide(NAD+), thereby triggering epigenetic reprogramming via Histone H3 Lysine 27 acetylation (H3K27ac) accumulation at the promoter region of master transcription factor Prrx1.
Xiwen Dong   +11 more
wiley   +1 more source

Effects of Input Parameters on the Hole Quality During the Drilling of Al Metal Matrix Composites

open access: yesDesigns
The extensive industrial applications of aluminum (Al) metal matrix composites (MMCs) require optimal drilling conditions in the manufacturing industries.
Alokesh Pramanik, Animesh Kumar Basak
doaj   +1 more source

Hybrid Edge–Cloud-Based Smart System for Chatter Suppression in Train Wheel Repair

open access: yesApplied Sciences, 2019
The contact profile of a train wheel has a key role in its operation performance. Rolling smoothly and with reduced resistance results in an increase in the efficiency and safety of rail transport.
Ruben Merino   +3 more
doaj   +1 more source

Interactions of Antibody Drug Conjugate Anti‐Tubulin and Topoisomerase I Inhibitor Payloads with Radiotherapy to Potentiate Immunotherapy

open access: yesAdvanced Science, EarlyView.
Antibody drug conjugates deliver their cytotoxic anti‐tubulin or topoisomerase I inhibitor payloads to tumors through cancer cell receptor targeting. The released drug payloads induce cellular changes that interact with radiotherapy resulting in radiosensitization that improves cancer cell kill and stimulates anti‐tumor immune responses.
Jacqueline Lesperance   +17 more
wiley   +1 more source

Application of the stability lobes theory to milling of thin workpieces, experimental approach [PDF]

open access: yes, 2003
The optimisation of cutting conditions in High Speed Machining (HSM) requires the use of a vibratory approach in order to avoid a fast deterioration of the tool and of the spindle, as well as a loss of quality of the surface rough- ness.
Arnaud, Lionel, Dessein, Gilles
core  

Mechatronics of a ball screw drive using a N degrees of freedom dynamic model [PDF]

open access: yes, 2017
High performance position control in machine tools can only be achieved modelling the dynamic behavior of the mechatronic system composed by the motor, transmission and control during the design stage.
Ansoategui Belategui, Igor   +1 more
core   +1 more source

Dynamics of the Mammalian Placental Metabolome in Placentogenesis and Embryonic Development

open access: yesAdvanced Science, EarlyView.
This study identifies three metabolic stages (E8.5, E9.5–10.5, E11.5–14.5) and two transition periods (E8.5–9.5, E10.5–11.5) in mouse placental development. NAD(H) emerges as a key dynamic metabolite that enhances embryonic growth through accelerated segmentation and increased proliferation of mouse embryonic stem cell (mESC)‐induced presomitic ...
Gang Chen   +11 more
wiley   +1 more source

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