Results 61 to 70 of about 287,346 (143)

High aspect ratio diamond nanosecond laser machining. [PDF]

open access: yesAppl Phys A Mater Sci Process, 2023
Golota NC   +7 more
europepmc   +1 more source

Optimal drilling parameters during rotary percussion drilling and simultaneous casing of borehole [PDF]

open access: yes, 2020
Udarno rotacijska metoda vrtanja se pogosto uporablja za vrtanje plitvejših vrtin, ki se v največji meri uporabljajo kot inklinometri, piezometri, vodnjaki ali geosonde, njihova globina pa običajno ne presega 250 m.
Bajuk, Simon
core  

Rotary - percussion drilling method - historical review and current possibilities of application

open access: yes
Tyt. z nagłówka.Bibliogr. s. [323].'Faster, deeper, cheaper' - it is not just a slogan, it is a motto of every oil company. The first application of rotary-percussion drilling method in drilling oil wells took place in early 60's of the XX century in the
Sapińska-Śliwa, Aneta.
core  

University Percussion Ensemble, April 14, 1976

open access: yes, 2016
Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Kalamazoo, Michigan, April 14, 1976, program no. 244 of the Department of Music's 1975-1976 season.University Percussion Ensemble, Don Baker, conductor.Information ...
Western Michigan University. Percussion Ensemble   +1 more
core  

University Percussion Ensemble, April 2, 1980

open access: yes, 2019
Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Kalamazoo, Michigan on Apr. 2, 1980, 8:00 p.m., program no.
Western Michigan University. Percussion Ensemble
core  

Fine-Tuning Wellbore Trajectory in Rotary Drilling Using Machine Learning–Based Model Predictive Control

open access: yes
Summary Positive displacement motor (PDM) bottomhole assemblies (BHAs) are widely used in horizontal drilling due to their low cost and high rate of penetration (ROP) under rotary conditions.
Li, Zhen   +6 more
core   +1 more source

University Percussion Ensemble, December 4, 1974

open access: yes, 2017
Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Kalamazoo, Michigan, December 4, 1974, as part of the Festival of new music, Department of Music’s 1974-1975 season.University Percussion Ensemble, Don Baker ...
Western Michigan University. Percussion Ensemble
core  

University Percussion Ensemble, April 2, 1986

open access: yes, 2016
Recorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, April 2, 1986, 2:00 p.m., the 312th concert of the School of Music’s 1985-1986 season.Members of the University Percussion Ensemble in ...
Western Michigan University. Percussion Ensemble
core  

University Percussion Ensemble, April 15, 1981

open access: yes, 2019
Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Kalamazoo, Michigan on April 15, 1981, 8:00 p.m., program no. 354 of the School of Music's 1980-1981 season.University Percussion Ensemble, Michael Varner, director ;
Western Michigan University. Percussion Ensemble
core  

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