Results 21 to 30 of about 5,995,042 (211)

Performance Comparison and Analysis of Helical Tungsten Carbide and Cermet Welded Drills [PDF]

open access: yes한국정밀공학회지, 2023
Drill processing is essential in various industries, such as automobiles and aviation. Carbide is mainly used for drilling, but cermet is also one of the most used materials.
Jeong Ho Ha, Dong Gyu Kim, Min-Woo Sa
doaj   +1 more source

THE RELATIONSHIP BETWEEN FEEDING RATE AND PATCH CHOICE [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 1991
Rats in a laboratory foraging simulation searched for sequential opportunities to feed in two patches that differed in the rate at which food pellets were delivered (controlled by fixed‐interval schedules) and in the size of the pellets. The profitability of feeding in each patch was calculated in terms of time (grams per minute) and in terms of effort
D F, Johnson, G, Collier
openaire   +2 more sources

Studies on cutting temperature by dimensional analysis (2nd report: Influence of thermal properties of workpiece and tool materials)

open access: yesNihon Kikai Gakkai ronbunshu, 2020
An evaluating equation to present the influence of thermal properties of workpiece and cutting tool on the cutting temperature is derived by the dimensional analysis.
Takashi UEDA   +3 more
doaj   +1 more source

Effect of Spindle Speed and Feed Rate on Surface Roughness and Milling Duration in the Fabrication of Milled Complete Dentures: An In Vitro Study

open access: yesApplied Sciences, 2023
Milling machines have made denture fabrication possible with high accuracy in a short time. However, the relationship between the milling conditions, accuracy, and milling duration has not been clarified.
Yo Akiyama   +4 more
doaj   +1 more source

SIMULATION OF LINEAR POSITION HYDRAULIC DRIVE FOR MACHINE POWER DRILL FEED

open access: yesAdvanced Engineering Research, 2013
The generalized trajectory of the power drill (PD) operational cycle is considered. In the case under study, the PD shows the increased speed and positioning accuracy of the fluid-feed. An automated hydraulic drive for providing the structural parametric
Valentin Sergeyevich Sidorenko   +1 more
doaj   +1 more source

Feeding rates of macro‐ and microzooplankton on heterotrophic nanoflagellates [PDF]

open access: yesLimnology and Oceanography, 1996
Thirteen metazooplankton and three ciliate species were examined for their ability to prey on heterotrophic nanoflagellates (HNF). Grazing losses of two species of HNF, Bodo saltans (kinetoplastid) and Spumella sp. (chrysomonad), were estimated in batch experiments by the disappearance of HNF in the presence or absence of predators.
Jürgens, K.   +3 more
openaire   +2 more sources

Optimization of Machining Parameters of AISI 1045 Steel for Better Surface Finish and Tool Life Using TiN Coated Carbide Insert

open access: yesTikrit Journal of Engineering Sciences, 2022
Surface roughness of machined parts has significant effect on the final part quality which can affect its tolerance and performance. In this work the effect of turning machining operation on surface roughness of AISI 1045 steel using TiN coated carbide ...
Lujain H. Kashkool
doaj   +1 more source

Sustainable Optimization of Drilling Parameters for AA2017/AlN Composite Materials: A Grey Relational Analysis Approach [PDF]

open access: yesE3S Web of Conferences
Modern engineering materials have seen remarkable development. Because conventional materials can no longer meet the needs of modern applications, numerous composites are being employed as viable alternatives.
Rajasekaran Senthil, Mohanavel Vinayagam
doaj   +1 more source

Comparative feeding rates of native and invasive ascidians [PDF]

open access: yesMarine Pollution Bulletin, 2018
Ascidians have a recent history of species introductions globally, often with strong ecological impacts. Comparisons of per capita effects of invaders and comparable natives are useful to assess such impacts. Here, we explore ingestion rates (IR) and clearance rates (CR) of Ciona intestinalis and Ciona robusta, co-occurring native and non-native ...
Hoxha, Tedi   +7 more
openaire   +6 more sources

Autonomous optimization of cutting conditions in end milling operation based on deep reinforcement learning (Offline training in simulation environment for feed rate optimization)

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
Full automation of manufacturing is strongly desired to improve the productivity. Autonomous optimization of the cutting conditions in the end milling operation is one of the challenges in achieving this goal.
Kazuki KANEKO   +5 more
doaj   +1 more source

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