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core drill


  • WordNet 3.6
    • n core drill a drill that removes a cylindrical core from the drill hole
    • ***


In literature:

There are two methods, the chop and the core drill.
"If You're Going to Live in the Country" by Thomas H. Ormsbee and Richmond Huntley
But did you see Mr. Jepson when I went into the assay house and began looking at those diamond-drill cores?
"Rimrock Jones" by Dane Coolidge
The resulting cores are more regular than those of modern rock-drilling.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 1" by Various
Another apparatus for core-drilling is the Davis Calyx drill.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3" by Various
The form of drill that is used quite extensively for drilling cored holes in castings is shown in Fig.
"Turning and Boring" by Franklin D. Jones

In news:

How to Choose a High-Quality Diamond Core Drill.
This core drill is equipped with a vacuum unit to minimize jobsite dust.
Core drilling conducted for tower.
It is eyeing Carroll, Harrison and Columbiana counties as Ohio's "core of the core" where the Oklahoma energy giant will continue drilling for natural gas, oil and other liquids.
Sediment cores drilled from bottom of Arctic lake show pattern of climate change.
An unidentified worker drills for core samples of the uranium at Coles Hill, which could supply the country's nuclear power plants for about two years.
Cores drilled out of the sea bottom contain layers of dust blown off the surface soils of Africa.
FUTURE Geologists with Nautilus Minerals examined a drill core sample.
Compact brown clay and wet green volcanic tuff in a drill core extracted northwest of the Potters' Quarter.
Taking a core-drill sample of limestone below a fault surface in the northern necropolis.
The first two wells will be drilled in the first two quarters of 2011 to total depths of 3,000 m. The wells will be drilled vertically to acquire new data via conventional cores and electric wireline logs.
(WIBW)-- Motorists may encounter delays Tuesday as city crews conduct core drilling in southwest Topeka.
Sitting along an old forest logging road, an exploratory drill site operates 24 hours a day to acquire core samples from thousands of feet below the Earth's surface.
Drilled Core Tubes Integral for Liquid Filtration Systems.
Personal safety and well-related process safety were the core themes of the keynote address on the opening day of this year's IADC Drilling HSE Europe Conference, 29-30 September in Amsterdam.

In science:

Fig. 5 The Japanese Dome Fuji station at Dome F in the 2006-07 summer, when the primary activity was ice core drilling.
Astronomy in Antarctica
However, analysis of an ice core drilled in 2001 at Dome F for paleoclimate research has found spikes of enhanced nitrate ion concentration.
Astronomy in Antarctica
As described in §3, an ice core drilled at Dome F has been used to infer that gamma rays produced by two historical supernovae also produced ionization events in the Earth’s atmosphere (Motizuki et al. 2010).
Astronomy in Antarctica
As shown in Fig. 34, a micrometer-size crystal with a hole drilled by an FIB technique was placed on a silicon cantilever of laser-detected ultra-sensitive torque magnetometer.77 The purpose of the central hole is to avoid the complications associated with vortex core production.
Evaluation of Spin-Triplet Superconductivity in Sr2RuO4
Thus 8000 ft is a good starting point for the drilling and coring program the geomicrobiologists will initiate.
Reference Design Project Book: NUSEL-Homestake
Core drilling: The core drilling of the 4850- and 7400-ft levels, coupled with laboratory testing, will provide the data the geotechnical modelers will need to verify the room designs, optimize their stability, etc.
Reference Design Project Book: NUSEL-Homestake