Results 31 to 40 of about 66,342 (341)

Experimental investigation of the rock cutting process and derivation of the 3D spatial distribution of the formation strength using in-cutter sensing

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
Recent advances in downhole measurements allow to accurately measure drilling forces at the drill bit, and estimate the evolution of the rock strength along the well profile. This paper presents an experimental methodology that allows to measure drilling
Alexis Koulidis   +2 more
doaj   +1 more source

Energy-Efficient Machining Process Analysis and Optimisation Based on BS EN24T Alloy Steel as Case Studies [PDF]

open access: yes, 2019
Computer Numerical Controlled (CNC) machining, which is one of the most widely-deployed manufacturing techniques, is an energy-intensive process.
Caires Moreira, Lorena   +3 more
core   +1 more source

An analytical design method for milling cutters with nonconstant pitch to increase stability, part 2: Application [PDF]

open access: yes, 2003
Chatter stability in milling can be improved significantly using variable pitch cutters. The pitch angles can be optimized for certain chatter frequency and spindle speed ranges using the analytical method presented in the first part of this two-part ...
Budak, Erhan
core   +2 more sources

An Energy Efficiency Tool Path Optimization Method Using a Discrete Energy Consumption Path Model

open access: yesMachines, 2022
As the energy cost accounts for about one-third of the total manufacturing cost, there is great significance in evaluating and managing energy consumption in manufacturing processes.
Yicong Gao   +4 more
doaj   +1 more source

Capabilities assessment for working bodies of rotary snowblowers through design and technological parameters study

open access: yesВестник СибАДИ, 2023
Introduction. At the initial stages of designing snow blower feeders, it is necessary to have relatively simple ratios on the basis of which one can judge their efficiency and their potential.
D. S. Aleshkov   +3 more
doaj   +1 more source

PO4, NO3, NO2 surface concentrations along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) [PDF]

open access: yes, 2020
Dataset: GT10 - Nanomolar Nutrients - SurfacePO4, NO3, NO2 surface concentrations along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010.
Cutter, Gregory
core   +1 more source

Analytical method for calculating scallop height of helical toroidal cutter in five-axis milling [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2020
This paper proposed a method to determine the path scallop of toroidal cutter in five-axis milling during a complex surface machining. A mathematical algorithm was developed by taking into consideration the impact of the helical angle and inclination ...
Hendriko Hendriko
doaj   +1 more source

Hole cutter [PDF]

open access: yes, 1975
An adjustable hole cutter is described for use in forming circular openings in workpieces. The hole cutter is characterized by a mount of a substantially planar configuration, positionable into a plane paralleling the working plane of a selected ...
Newby, D. T., Thornton, G. E.
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Rapid Fabrication of Custom Microfluidic Devices for Research and Educational Applications [PDF]

open access: yes, 2019
Microfluidic devices allow for the manipulation of fluids, particles, cells, micro-sized organs or organisms in channels ranging from the nano to submillimeter scales. A rapid increase in the use of this technology in the biological sciences has prompted
Juan, Jonathan   +4 more
core   +1 more source

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