Results 31 to 40 of about 804,929 (308)
High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials [PDF]
, 2020 This experimental research highlights the applicability of laser cutting to cement-based materials using multimode fiber lasers. A 9 kW multimode fiber laser is used, and the experimental variables are the water-to-cement ratio, laser speed, and material
Lee, Dongkyoung +2 more
core +1 more source
Laboratory Experimental Study on Rock Breaking Efficiency and Stability of PDC Bit
Shiyou jixie, 2020 In order to evaluate the rock breaking efficiency and stability of the newly developed PDC bit in the target lithologic formation, and guide the optimization, improvement and efficient use of the newly developed PDC bit, full scale laboratory rock ...
Zhang Jiawei +6 more
doaj
Simulation and experimental study on micro-cutting silicon carbide crystal with single grain diamond
Jin'gangshi yu moliao moju gongchengObjectivesThe hardness of silicon carbide is second only to those of diamond, cubic boron nitride, and boron carbide, making its processing very difficult.
Yufei YANG +5 more
doaj +1 more source
The cutting behavior of cortical bone in different bone osten cutting angles and depths of cut [PDF]
, 2021 Abstract Cortical bones are semi-brittle and anisotropic, this brings the challenge to suppress vibration and avoid undesired fracture in precise cutting processes in surgeries. In this paper, we proposed a novel analytical model to represent cutting processes of cortical bones, and we used to evaluate cutting forces and fracture toughness, and
Yuanqiang Luo +5 more
openaire +1 more source
Optics Express, 2023 Infrared micro-lens arrays (MLAs) are widely used in advanced optical systems due to their advantages such as low focusing depth and high sensitivity. Elliptical vibration cutting (EVC) is a promising approach for the fabrication of MLAs on infrared brittle materials.
Zhengding Zheng +7 more
openaire +2 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
High-Power Laser Cutting of Steel Plates: Heat Affected Zone Analysis
Advances in Materials Science and Engineering, 2016 The thermal effect of CO2 high-power laser cutting on cut surface of steel plates is investigated. The effect of the input laser cutting parameters on the melted zone depth (MZ), the heat affected zone depth (HAZ), and the microhardness beneath the cut ...
Imed Miraoui +2 more
doaj +1 more source
Microwave interferometer controls cutting depth of plastics [PDF]
, 1969 Microwave interferometer system controls the cutting of plastic materials to a prescribed depth. The interferometer is mounted on a carriage with a spindle and cutting tool.
Heisman, R. M., Iceland, W. F.
core +1 more source
Depth of proofs, depth of cut-formulas and complexity of cut formulas
Theoretical Computer Science, 1994 The standard cut-elimination procedure for classical predicate logic is modified to make alternation of quantifiers (rather than the number of quantifiers) the main complexity parameter.
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Molecular Oncology, EarlyView.Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice +16 more
wiley +1 more source