Results 51 to 60 of about 565,672 (242)

The impact of vibration mechanism’ installation place on the process of retrieving stuck drill pipe [PDF]

open access: yes, 2016
Purpose. The present paper studies the dependence of the dynamic oscillatory movements in the area of drill string sticking on the parameters of vibrating mechanism and place of its installation in the heavy weight drill pipe.
Levchuk, K, Moisyshyn, V
core   +2 more sources

Use of Disaster Management Computerized Simulation System in a teaching hospital of Tehran University of Medical Sciences [PDF]

open access: yesحیات, 2004
Introduction: With a dramatic increase in costly mass casualty incidents over the past few decades, disaster planning and preparedness now represent a prominent part of health care policy and practice.
J Nasl Seraji, H Dargahi
doaj   +1 more source

A sensory-guided surgical micro-drill [PDF]

open access: yes, 2010
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2010 The Authors.This article describes a surgical robotic device that is able to discriminate tissue interfaces and other controlling ...
Brett, PN   +5 more
core   +2 more sources

Hanging Ball and Handpad Drill Training: Which is better in improving the ability of the instep serve in Sepak Takraw?

open access: yesSriwijaya Journal of Sport
The Sepak Takraw game requires precise and programmed training to produce accurate serves. This research aims to determine the effect of hanging ball and hand pad drills (Target) on improving instep serviceability in Sepak Takraw.
Ummu Amalia Ulfa   +4 more
doaj   +1 more source

Realization of Borehol V1 Till V4 at Liquidation of Shaft Leopold Situated in the Solivar Part of the Town of Presov [PDF]

open access: yesActa Montanistica Slovaca, 2004
Leopold shaft is situated in the Solivar part of the town of Presov, object (object of National Cultural Monument Gapla). Strong ascent of the level of natural salt brine resulted in the change of stress state of rock massif with subsequent deformation ...
Wittenberger Gabriel   +4 more
doaj  

Chuck for delicate drills [PDF]

open access: yes, 1972
Development of oil film technique to couple power between drive spindle and drill chuck for delicate drilling operations is discussed. Oil film permits application of sufficient pressure, but stops rotating when drill jams.
Copeland, C. S.
core   +1 more source

PENGARUH PROJECT BASED LEARNING DENGAN METODE DRILL DAN PROJECT BASED LEARNING DENGAN METODE FEEDBACK TERHADAP HASIL BELAJAR PEMROGRAMAN WEB

open access: yesTeknologi dan Kejuruan, 2018
Tujuan penelitian adalah mengungkap perbedaan rerata hasil belajar pem­rog­raman web (ranah pengetahuan dan keterampilan) karena pengaruh penerapan PjBL dan Metode Drill dibandingkan dengan PjBL dan metode Feedback.
Syaichul Fitrian Akbar   +2 more
doaj   +1 more source

Technique for anchoring fasteners to honeycomb panels [PDF]

open access: yes, 1969
Two-piece fastener bushing provides mounting surface for components on a three-inch thick honeycomb structure. Specially constructed starter drill and sheet metal drill permit drilling without misalignment.
Brown, W. J.   +2 more
core   +1 more source

PENGARUH DIAMETER MATA BOR TERHADAP PEMAKAIAN DAYA LISTRIK PADA BENCH DRILL IXION BT 25 [PDF]

open access: yes, 2022
This research talked about whether using a larger drill bit will decrease or increase electricity usage and whether the drill bit will affect electricity usage on the bench drill IXION BT 25 drill machine.
Gede, I Nyoman   +2 more
core   +1 more source

Core drill's bit is replaceable without withdrawal of drill stem - A concept [PDF]

open access: yes, 1970
Drill bit is divided into several sectors. When collapsed, the outside diameter is forced down the drill stem, when it reaches bottom the sectors are forced outward and form a cutting bit.
Rushing, F. C., Simon, A. B.
core   +1 more source

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