Results 71 to 80 of about 287,346 (143)

The comparison of rotary-percussion and rotary drilling methods at the Kuusilampi deposit

This master’s thesis investigates the comparative efficacy of diesel powered rotary-percussion drilling and rotary drilling methods in the Kuusilampi deposit in Finland.
Helko, Ville
core   +1 more source

A Mission Simulating the Search for Life on Mars with Automated Drilling, Sample Handling, and Life Detection Instruments Performed in the Hyperarid Core of the Atacama Desert, Chile. [PDF]

Astrobiology, 2023
Stoker CR, Glass BJ, Stucky TR, Dave AI, Kobayashi LT, Quinn RC, Moreno-Paz M, Sánchez-García L, Mora MF, Kehl F, Parro V, Willis PA, Davila A, Noe Dobrea E, Rask JC, Ricardo D.   +15 more
europepmc   +1 more source

Structural design and effect analysis on a new type of hydraulic oscillator driven with double valve groups. [PDF]

Sci Rep, 2022
Lingxia H, Qiaolei S, Long D, Yuwei L, Ding F.   +4 more
europepmc   +1 more source

University Percussion Ensemble, March 16, 1975

, 2017
Recorded during a live performance at Oakland Recital Hall, Western Michigan University, Kalamazoo, Michigan, March 16, 1975, program no. 188 of the Department of Music’s 1974-1975 season.University Percussion Ensemble, Don Baker, director ; Terry Turner,
Western Michigan University. Percussion Ensemble
core  

Multiple Endodontic Guides for Root Canal Localization and Preparation in Furcation Perforations: A Report of Two Cases. [PDF]

Iran Endod J, 2023
Shaban A, Elsewify TM, Hassaneina EE.
europepmc   +1 more source

Rotary beginnings

, 2012
A memo sent to the Toledo Rotary Club asking about the history of the Toledo Rotary ...
Toledo Rotary Club, Rotary International
core  

Reducing industrial noise by the use of damping alloys when manufacturing mining equipment parts. [PDF]

Heliyon, 2023
Batessova F, Omirbay R, Sattarova G, Zholmagambetov N, Zholmagambetov S, Dostayeva A, Suleimenov N, Medeubayev N.   +7 more
europepmc   +1 more source

Analysis on working characteristics of cam-roller impact mechanism of rotary percussion drilling tool

Rotary percussion drilling tools can effectively improve their rock breaking efficiency in the deep and hard strata, thus having broad application prospects. The cam-roller is the key mechanism to realize the impact action, but the complex and changeable
Jifang, WAN, Jiwei, WU, Jun, YI, Jianqi, MA, Guangpin, YIN, Yangqing, SUN, Xianzhong, YI   +6 more
core   +1 more source

The use of acoustic emission technique in MWD for mine to mill approach as a smart tool for sustainable mining. [PDF]

Sci Rep
Jalalian MH, Bagherpour R, Khoshouei M.
europepmc   +1 more source

Mission Overview and Scientific Contributions from the Mars Science Laboratory Curiosity Rover After Eight Years of Surface Operations. [PDF]

Space Sci Rev, 2022
Vasavada AR.
europepmc   +1 more source