Results 31 to 40 of about 872,163 (296)

Investigation of machining quality indicators and effect of tool geometry parameters during the machining of difficult-to-machine metal

open access: yesResults in Materials, 2023
Producing high-quality surfaces from hard and brittle metals presents a formidable challenge that calls for a meticulous machining strategy and an effective cutting tool. The mechanism of tool failure, chip formation behavior, and micro-morphology of the
Farooq Ahmed   +4 more
doaj   +1 more source

Algebraic Geometry Tools in Systems Biology

open access: yesNotices of the American Mathematical Society, 2020
Many models in the sciences and engineering are expressed as solution sets to systems of polynomial equations, that is, as affine algebraic varieties. This is a basic notion in algebraic geometry, a vibrant area of mathematics which is particularly good at counting (solutions, tangencies, obstructions, etc.), giving structure to interesting sets ...
openaire   +2 more sources

Finite element modeling of the neuron-electrode interface: stimulus transfer and geometry [PDF]

open access: yes, 1999
The relation between stimulus transfer and the geometry of the neuron-electrode interface can not be determined properly using electrical equivalent circuits, since current that flows from the sealing gap through the neuronal membrane is difficult to ...
Buitenweg, J.R.   +2 more
core   +3 more sources

A Method for Simultaneous Optimization of Blank Shape and Forming Tool Geometry in Sheet Metal Forming Simulations

open access: yesMetals, 2021
This paper presents a numerical method for simultaneous optimization of blank shape and forming tool geometry in three-dimensional sheet metal forming operations.
Bojan Starman   +2 more
doaj   +1 more source

Ultrasonic Bonding of Multi-Layered Foil Using a Cylindrical Surface Tool

open access: yesMetals, 2019
A cylindrical tool was applied for ultrasonic bonding of multi-layered copper foil and a copper sheet to prevent damage to the foil during bonding. The strength of the joints bonded with the cylindrical tool was comparable to that of the joints bonded ...
Keisuke Arimoto   +3 more
doaj   +1 more source

Parametric finite-element studies on the effect of tool shape in friction stir welding [PDF]

open access: yes, 2010
The success of the Friction Stir Welding (FSW) process, and the weld quality produced, depends significantly on the design of the welding tool. In this paper the effect of variation in various tool geometry parameters on FSW process outcomes, during the ...
Hamilton, R., Li, H., Mackenzie, D.
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Structure-dynamics relation in shaken optical lattices

open access: yes, 2015
Shaken optical lattices permit to coherently modify the tunneling of particles in a controllable manner. We introduce a general relation between the geometry of shaken lattices and their admissible effective dynamics.
Mintert, Florian, Verdeny, Albert
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

ANALYSIS OF THE EVOLUTION OF THE DURABILITY OF CUTTING TOOLS DEPENDING OF FUNCTIONAL GEOMETRY [PDF]

open access: yesFiabilitate şi Durabilitate, 2019
The paper aims to analyze how the durability of the cutting tool evolves as a result of the variation of the functional geometry of the tool at the transverse feed.
Mădălin TOMESCU, Cosmin IONESCU
doaj  

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