Search Documents
Search Again
Search Again
Refine Search
Refine Search
- Relevance
- Most Recent
- Alphabetically
Sort by
- Relevance
- Most Recent
- Alphabetically
-
Coal - Anchorage Performance in Rock Bolting
By D. S. Choi, R. Stefanko
There are a number of complex factors that influence the effectiveness of anchorage to maintain tension in rock bolts. However, a plastic analysis of the anchorage site employing certain simplifying a
Jan 1, 1971
-
Institute of Metals Division - The Energy Relations in the Deformation by Torsion of a Gold-Silver Alloy
By A. S. Appleton, M. B. Bever
The stored and expended energies of an Au-Ag alloy deformed in torsion were investigated as functions of strain, strain rate, and temperature. At room temperature, the stored energy, measured by tin s
Jan 1, 1963
-
-
European versus American Mine Inspection
By J. T. Ryan
IN making a comparison of mine inspection methods in Europe and the United States, it is necessary to have some basis to start from, which makes this subject rather difficult, as such methods are gove
Jan 1, 1926
-
Enlightened Selfishness in Business1
By PAUL AUDIBERT
THE downward trend of metal prices seems to act something like a reagent that precipitates selfishness in most business men's hearts; in the same way the upward trend precipitates altruism. Opera
Jan 1, 1931
-
The1 ½ Billion-Dollar Scrap Metal Industry
By J. F. Ednie
SCRAP metals to the value of more than a billion and a half dollars were recovered in the United States in 1939 for further use in industry. Few people have any true conception of the magnitude of the
Jan 1, 1941
-
Hydraulic Stripping Of A Stone Quarry (79e0e9c3-3b9b-4fe0-bd58-334aad55af5b)
By Mark Sheppard
DURING the winter of 1937, the writer visited a West Virginia stone quarry at which the overburden is stripped hydraulically. The quarry is in a bed of limestone, about 200 ft. thick, which outcrops o
Jan 1, 1938
-
Reservoir Engineering- Laboratory Research - Natural Convection in Porous Media and Its Effect on Segregated Forward Combustion
By C. Dirksen
This study investigates whether oxygen consumption during segregated forward combustion may be affected by natural convection. Linear theory indicates that thermal instability occurs in a horizontal p
Jan 1, 1967
-
Mining Methods - Hydraulic Stripping of a Stone Quarry (T.P. 879, with discussion)
By Mark Sheppard
DuRing the winter of 1937, the writer visited a West Virginia stone quarry at which the overburden is stripped hydraulically. The quarry is in a bed of limestone, about 200 ft. thick, which outcrops o
Jan 1, 1938
-
Mining Methods - Hydraulic Stripping of a Stone Quarry (T.P. 879, with discussion)
By Mark Sheppard
DuRing the winter of 1937, the writer visited a West Virginia stone quarry at which the overburden is stripped hydraulically. The quarry is in a bed of limestone, about 200 ft. thick, which outcrops o
Jan 1, 1938
-
Part IX – September 1969 – Papers - Solidification of Ice Dendrites in Flowing Supercooled Water
By Edmond S. Miksch
The morphology and growth rate of ice grown in supercooled water are markedly affected by convection of the water. A dendritic ice sheet with water flowing past the dendrite tip exhibits deflection of
Jan 1, 1970
-
Bingham's Road Maintenance Program Tackles Mounting Truck Costs
By Roger L. Goin
Maintaining smooth haulage roads is a key to significant cost savings at Kennecott Copper Corp.'s Bing- ham Canyon copper mine, located near Salt Lake City, Utah. The truck operations section of
Jan 12, 1974
-
Sonic Pin-Setting Machine (688b8cfb-4a37-4ec9-ba76-30a545dfc10d)
By J. C. Purcupile, R. L. Morris
Present methods of roof support require that first a hole must be drilled, and then a toggle belt or grouted resin bolt be set. Automating this system is very difficult. Therefore, we decided to devel
Jan 1, 1977
-
Stereoscopic Pictures with a Kodak
By W. Spencer Hutchinson
THE purpose of this account is to introduce to other engineers and geologists who use photography a means of interpreting topographic and geologic structure with the stereoscope. Anyone who finds this
Jan 1, 1921
-
Geological Study of Gravel Concrete Aggregate of the Tennessee River (e07d1b33-6851-4dc9-afc1-08ef8d7fa016)
By E. L. Jr. Spain
This study was undertaken primarily to determine the reasons for certain varia-tions in the soundness of gravel aggregate taken from a number of widely separated points on the Tennessee River. Under l
Jan 1, 1937
-
New York Paper - Metallographic Investigation of Transverse-fissure Rails with Special Reference to High-phosphorous Streaks (with Discussion)
By G. F. Comstock
The subject of transverse fissures in steel rails has been discussed very thoroughly in recent years from various points of view and the final opinions expressed may be roughly classified into two gro
Jan 1, 1920
-
National Defense and Coal Utilization
By J. E. Tobey
NATIONAL DEFENSE should not create a dilemma in coal utilization such as obtained during the World War. Even under the heavy pressure of a total preparedness program there should be a smooth flow of t
Jan 1, 1941
-
The Late Operations on the Mariposa Estate
By Charles M. Rolker
(Read at the Philadelphia Meeting, February, 1878.) THE Mariposa estate, a grant made by the Mexican Government to Juan B. Alvarado, during the time when California was still under the dominion of
Jan 1, 1878
-
Steelmaking -The Origin, Definition and Prevention of Scabs (Metals Technology, September 1943)
By T. J. Woods
This paper deals with the origin, definition and prevention of scabs on semifinished rolled-steel product. Mold coatings, which are considered essential in scab prevention, were found to be effecti
Jan 1, 1943
-
Steelmaking -The Origin, Definition and Prevention of Scabs (Metals Technology, September 1943)
By T. J. Woods
This paper deals with the origin, definition and prevention of scabs on semifinished rolled-steel product. Mold coatings, which are considered essential in scab prevention, were found to be effecti
Jan 1, 1943