Results 31 to 40 of about 4,689,593 (329)

Experimental Study on the Drilling Parameter Analysis of Banana Fiber Reinforced Vajram Mixed Phenolic Resin Composite Laminates

open access: yesJournal of Natural Fibers, 2022
Drilling operation of fiber reinforced polymeric (FRP) composites is significantly dissimilar from conventional drilling operation of metals; hence, identification of optimum drilling process parameters for FRP composites has become mandatory.
R. Sathish Kumar   +4 more
doaj   +1 more source

The optimization algorithm for application in directional drilling trajectories of energy field

open access: yesEnergy Reports, 2022
Recently, the directional drilling technology (DDT) has been extensive used in many energy field such as coal geological exploration, gas drainage and artificial freezing engineering etc.
Shu-jie Liu   +3 more
doaj   +1 more source

Minimization of tool path length of drilling process using particle swarm optimization (PSO) [PDF]

open access: yes, 2020
In the era of challenging economic, the industry in our country has been forced to produce a good quality product and increase the productivity of machining process simultaneously in order to compete with other countries.
Abdullah, Haslina   +5 more
core  

A methodology for the lightweight design of modern transfer machine tools [PDF]

open access: yes, 2018
This paper deals with a modern design approach via finite elements in the definition of the main structural elements (rotary table and working unit) of an innovative family of transfer machine tools. Using the concepts of green design and manufacture, as
Cavalli, Omar   +6 more
core   +2 more sources

Active and passive component embedding into low-cost plastic substrates aimed at smart system applications [PDF]

open access: yes, 2013
The technology development for a low-cost, roll-to-roll compatible chip embedding process is described in this paper. Target applications are intelligent labels and disposable sensor patches. Two generations of the technology are depicted.
Cauwe, Maarten   +5 more
core   +2 more sources

Optimization of technological parameters of airlift operation when drilling water wells

open access: yesNaukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2023
Purpose. Development of a methodology for optimizing the technological parameters of the airlift operation, based on the analysis of the pressure balance in the annulus and in the drill string that occurs during drilling. Methodology.
B. Borash   +4 more
semanticscholar   +1 more source

Sustainable use and production of energy in the 21st century [PDF]

open access: yes, 2015
It is foreseen that oil and gas will continue to be the key energy sources in the 21st century. Therefore, it is important that oil and gas be produced in a sustainable way during the next decades.
Gudmestad, O. T., Traa, K.
core   +2 more sources

Stick–Slip Characteristics of Drill Strings and the Related Drilling Parameters Optimization

open access: yesProcesses, 2023
To eliminate or reduce stick–slip vibration in torsional vibration of the drilling string and improve the rate of penetration (ROP), a stick–slip vibration model of the drilling string considering the ROP was established based on the multidimensional ...
Chao Wang   +4 more
semanticscholar   +1 more source

Overview of technologies for constructing the facilities at the Dniester pumped storage power station [PDF]

open access: yes, 2019
Purpose. Perform an overview of the construction technologies and substantiate the effectiveness of the Ukrainian experience in building a pumped storage power station (PSPS) on the Dniester River in difficult engineering-geological conditions with the ...
Horbatiuk, Yu   +4 more
core   +1 more source

Input variable selection in time-critical knowledge integration applications: A review, analysis, and recommendation paper [PDF]

open access: yes, 2013
This is the post-print version of the final paper published in Advanced Engineering Informatics. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
A. Mousavi   +64 more
core   +1 more source

Home - About - Disclaimer - Privacy