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Elected Died 1884 *ADDY, MATTHEW 1896 1894 *ALLFN R B 1896 1874 *AMIOT, H 1892 1886 *AMSLER, CARL 1894 1895 *ÅNGSTROM, CARL 1901 1895 *ARMSTRONG, JOHN F 1898 1882 *ARNOLDS, HUGO 1886 1875 *ASHBURNER, CHARLES A 1889 1872 *ASIIBURNER, WILLIAM 1887 1883 *ATKINS, C M , JR 1885 1897 *AYERS, WILLIAM 1898 1885 *BABCOCK, GEO H 1893 1884 *BAILEY, EDWARD 1889 1880 *BAILEY, JACKSON 1887 1900 *BALLOU, FRANKLIN 1903 1886 *BARNES, F W 1892

Jan 1, 1910

By Bailey, Lewis Newton

Bailey, Lewis Newton, Master Engineer, Senior Grade, 4th Regiment, U. S. Engineers, Headquarters Company, died of pneumonia at Camp Merritt, N. J., on Apr. 30, 1918. Baird, Louis, Lieut., Royal Field Artillery, British Army, died on the battlefield in 1915. Ballamy, John H., Capt., 103d Engineers, killed in action near Fismes, Aug. 9, 1918. Bowles, Martin F., 2d Lieut., Co. B, 355th Infantry, killed in action, Sept. 3, 1918. Burt, Andrew, died in active service, 1916. Cobeldick, William Morley, Royal Engineers, died from gas poisoning on Oct. 7, 1915. Dougall, Ralph, 4th University Co., Princess Patricia Regiment, killed in action early in the war. Evans, Alfred Winter, Lieut.-Col., New Zealand Rifle Brigade, D. S. 0., D. C. M., killed in action on Oct. 12, 1917.

Jan 3, 1919

A novel problem-solving exercise for undergraduates is described which is directly relevant to production supervision. It is based on the fictitious Metwin Plant which produces refined metal from sulphide concentrates via a hydrometallurgical route with six unit operat- ions. Students are given details of the chemistry, process engineering and normal operating conditions. They are also given min- imum data for the Plant when it is operating with a fault. By requesting further data, for which they are 'charged', the students must diagnose the fault. The responses of students to the exercise are described. The data were produced by computer simul- ation of steady state operation under normal and various faulty conditions. The development of this program was an educational experience for the author and it stimulated new interest in metallurgical process engineering.

Jan 1, 1984

By Cecil Hagen

All of the production for Ecuador during 1940 came from the Santa Elena Peninsula, Province of Guayas; the major portion coming from the Ancon field, which is controlled mostly by Anglo-Ecuadorian Oilfields, Ltd. A small amount was produced from the shallow pumpers and pozos, or oil pits, at Cautivo-Achallan, Carolina, Santa Paula, Concepcion, El Tambo and Mina Tigre. Considerable exploration was carried on in the country during 1940 and numerous concessions were in force, as shown by the accompanyiag map. Anglo-Saxon continued its exploratory work in the Oriente by surface geological methods and some geophysical surveys. It is understood that this concern did considerable airplane mapping. International Petroleum, on its large concessions between the Andes and Pacific Coast, did considerable surface work as well as some geophysical. No exploratory test wells were drilled by either of these

Jan 1, 1941

By Vanderlei Beisiegel, Arthur L. Bernardelli, Arthur W. Ruff, John H. Tremaine

Estimated reserves of high-grade iron ore at Serra dos Carajás total 16 billion metric tons and have an average grade of 66.7 per cent iron, 2.2 per cent combined silica and alumina, and 0.05 per cent phosphorous on a dry basis. Hematite is predominant and no significant sulfur on other deleterious elements are present. Serra dos Carajás is located in northern Brazil, about 550 kilometers southwest of Belém, Pará. It is six degrees south of the equator between the Xingu and Tocantins Rivers. Both rivers flow northward toward the Amazon River. The greater part of the area is covered by thick jungle, and the most practical means of access is by air.

Jan 1, 1974

By Johanna van Deventer, Sean Scott, Rene du Preez, Steven R. Izatt

In order to meet the stringent specifications associated with the production of LME Grade A cobalt cathode, producers need to ensure that a number of impurities, including Cd, are removed from the advance electrolyte to ppb levels (~0.1 mg/L). Conventional options include ion exchange using amino methyl phosphonic acid resin and solvent extraction using D2EHPA. More recently a Cd-selective resin, employing Molecular Recognition Technology (MRT), became available from IBC Technologies, Inc. These three potential unit operations were evaluated in parallel at Mintek. MRT was identified as the most technically feasible option. Results obtained on a cobalt advance electrolyte, containing 55 g/L Co, 6 mg/L Cd and 60 g/L Na2SO4, are presented in this paper.

Jan 1, 2007

By Eugene R. Palowitch

From the late 1880s to the present, the Appalachian region continues to be a dominant supplier of premium-quality coals. The region contains an estimated 93.4 Gt (102.7 billion st) of demonstrated reserves in Alabama, eastern Kentucky, Maryland, Ohio, Pennsylvania, Tennessee, Virginia and West Virginia. Therefore, Appalachia will remain a source of quality coals for the metallurgical, export and utility markets. Figure 1 shows the annual production of coal in Appalachia and nationally from 1970 through 1993 (Energy Information Administration, 1994). During that 23-year period, annual domestic coal production almost doubled. Coal production from Appalachia increased at an average annual rate of only 0.7%. Coal production remained essentially constant at about 409 Mt/a (450 million stpy). Thus, Appalachia's market share decreased from 69.8% in 1970 to 47.2% in 1993 - a drop of almost one-third (Energy Information Administration, 1994).

Jan 1, 1995

By P. A. J. Cabassi, B. K. Loveday, M. J. Wilkinson, P. H. Radcliffe

The recovery of gold, uranium, and pyrite from accumulated residues at mines in the Orange Free State is adversely affected by the presence of pyrophyllite, which is naturally floatable and must be prevented from floating with the desired constituents by the use of a mica depressant, and of thucholite (uraniferous kerogen), which contains significant quantities of uranium and gold but does not float readily in the presence of a mica depressant. In laboratory tests on these residues, the use of a mixture of MIBC (methyl isobutyl carbinol) and paraffin in addition to the suite of reagents normally used was found to increase the gold recovery substantially, but the sulphur grade was lower. The recovery of thucholite also increased considerably, but the proportion of uranium associated with this mineral was small. Plant trials, which are continuing, have been encouraging, indicating an increase in the gold recovery of 4,6 per cent.

Jan 1, 1983

By Wendell W. Harris, Stanley J. Vitton

In the United States each year it has been estimated that expansive soils cause approximately $9.0 billion in damage to buildings, roads, airports, and other facilities. This figure alone exceeds the damage estimate for earthquakes, floods, tornadoes, and hurricanes combined. Unfortunately, some cases of expansive soil damage (swelling) are blamed on rock blasting operations if the blasting operations are located within the immediate area. While simple tests, such as the Atterberg limits test, can characterize a soil as expansive, it does not necessarily answer the question whether the foundation soils are causing distresses to a structure. In particular, it appears that once a soil has been labeled as nonexpansive it is no longer considered as a problem soil, in which case blast vibrations become the prime suspect.

Jan 1, 1996

By Shawn Benner, David Blowes, Carol Ptacek

A full-scale reactive barrier was installed into an aquifer impacted by acid mine drainage in August 1995 at the Nickel Rim mine site near Sudbury, Ontario. The primary mechanism of water quality improvement is bacterially mediated sulfate reduction and metal sulfide precipitation. Dramatic changes in the groundwater chemistry are observed with up to 90% decline in Fe (from >18 to <2 mmol L-1) and increases in alkalinity from <1 to >10 mmol L-1 (as CaCO3). Over a 3 year period, the rate of Fe removal declines by approximately 35%. Primary controls on barrier performance are organic carbon reactivity, groundwater temperature, and variable residence time within the barrier.

Jan 1, 2000

An extended investigation by the chief engineer of the Bureau of Mines shows that North Dakota has immense beds of lignite. War conditions have stimulated the use of North Dakota lignite until it is now being used at the rate of 1,000,000 tons annually. This North Dakota lignite is coming into extensive local use and considerable of it is being shipped to various parts of the state. The great problem at the present time is to find a market for the gas, which is the principal-by-product of lignite preparation. Bureau of Mines specialists will complete their reports of the studies of lignite in this country and will then make a recommendation as to the lignite field which is best suited for the establishment of the proposed Government&apos;s experimental plant. "Broken eggs cannot be mended."-(Lincoln.) Neither can "cashed in" War Saving Stamps grow to their maturity value.

Jan 8, 1919

By S. Michael Feroz, Paul Gribbon, Jan Rosholt

Approximately six billion gallons of combined sewage are discharged annually into Willamette River and Columbia Slough through Portland’s combined sewer system. The Columbia Slough Consolidation Conduit (CSCC) is an important element of mandated Combined Sewer Overflow (CSO) abatement. It includes2,548m (8,361 ft.) of 3.7 m. (12 ft.) internal diameter tunnel. The CSCC alignment traverses the UP railroad, Columbia Boulevard and parallels an old sewer. Geologic conditions include river alluvium and fine to coarse-grained flood deposits containing cobbles and boulders. This paper describes design and construction of a tunnel in soft-ground, with shallow cover and close to an old concrete sewer.

Jan 1, 1999

Dr J. P. Hugo, Pr. Eng., after obtaining a B.Sc. (Eng.) in Metallurgical Engineering at the University of the Witwatersrand in 1948, gained about 9 months&apos; practical experience in a British steelworks, followed by post-graduate studies at Sheffield University, leading to a Ph.D. (Metallurgy) in 1953. Mr G. Y. Nisbet, Pr. Eng., holds a B.sc. (Min.) from the University of the Witwatersrand (1948) and a P.M.D. from Harvard University, U.S.A. (1966). On graduating, he was awarded the Chamber of Mines&apos; Gold Medal. Professor D. G. Krige, holds a D.Sc. (Eng.) from the University of the Witwatersrand (1963) and a D.Ing. (H.C.) from the University of Pretoria (1981). Dr P. T. Wedepohl holds a B.Sc. (Hons.) from the University of the Witwatersrand (1953) and a Ph.D. from the University of Reading, England (1958).

Jan 1, 1984

By K. Koneko, T. Nokoyama, S. Shibato

SEYBOLT et al.&apos; have detected various silica films formed on a 3 pct Si-Fe alloy after heating at low oxygen potentials with the electron diffraction method, and they have made some observations on the H,0/H2 ratios required to form them. The purpose of this note is to describe the structure of the oxide film formed on either mechanically or electrolytically polished surfaces of a 3 pct Si-Fe alloy containing small amounts of manganese after heating at low oxygen potential. The samples were prepared from a Si-Fe alloy made in the laboratory using electrolytic iron, 76 pct ferrosilicon, and 76 pct ferromanganese, vacuum-in-

Jan 1, 1969

Mineral sands are being used as the source material for new "high-tech" engineering materials. One such material, Magnesia Partially Stabilized Zirconia (PSZ) has been developed and patented world-wide by CSIRO. Derived from zircon sands, the material is currently produced by Nilcra Ceramics in Australia and is exported world-wide.The properties of the material are contrary to those generally accepted for ceramics and are far more akin to those of steel. The material resists not only abrasive wear, impact and thermal shock, but does so under corrosive conditions that frequently cause early failure of metal and cemented carbide.While the consumption of mineral sands for the production of PSZ is not going to significantly increase the demand in the short term, the material itself may well assist the productivity and processing problems within the industry.

Jan 1, 1986

By B. P. Atkin, D. W. Brown

A handleability monitor was designed to provide a simple, rapid, on-site assessment of the whole or part consignment of a coal blend in its "as-received" condition. The monitor was evaluated at a number of coalhandling plants, which handle both metallurgical and power station coals from a variety of sources worldwide. The results can be used to predict which coals could routinely pass through a handling plant at line capacity without causing blockage or delay. Despite extensive analysis of the data, it was not possible to correlate the handleability index to the regular sample analysis of moisture, ash and size analyses of the coal blends.

Jan 1, 2002

The application of cheap robust microprocessor based units to achieve monitoring and control in an underground mining environment is described. The functional layout of the programmable controller and the methods of multiplexing and processing information from local and remote sources are examined as are features for refrigeration plant control.High noise immunity communication to a remote micro computer uses existing telephone lines and enables display and print of essential data. The development of this system then leads to applications in monitoring compressed air, ore transport and underground fires.In conclusion, the problems of data presentation to different levels of management and the future philosophy of a central multi-reporting system are discussed.

Jan 1, 1985

By Joseph C. Hirschi

Mine engineers have been interested in building models that simulate mining operations since computers were introduced to the industry in the 1960s. Computer models enable operational scenarios to be evaluated without the need for actual field experimentation. Virginia Tech’s FACESIM and CONSIM, Penn State’s UGMHS, and KETRON’s CPMINE are perhaps the best known early models. Recently, SIUC has modified a Microsoft® Excel version of Virginia Tech’s Mathematical Model, calling it the SSP Model. It is used to quantify the significance of various controllable parameters. Productivity increases approaching twenty percent may be achieved where recommendations suggested by the model are applied.

Jan 1, 2005

By Waddell S

A new procedure has been developed for the direct determination of metals loaded on activated carbon. It involves preparation of a suspension of the powdered carbon in water, followed by direct sampling of the suspension with a micropipette,and analyses by atomic absorption spectroscopy using carbon rod atomization. Advantages of the method include the simplicity of sample preparation and the ability to provide a complete metal analysis in 1 - 2 hours. This enables carbon-in-pulp operators to respond quickly to changes in plant efficiency arising from carbon fouling. The successful application of the method has been demonstrated for gold, copper, nickel and iron. Other elements to be surveyed include calcium, magnesium and silicon.

Jan 1, 1984

By N. B. Strydom

Die bedryfsfisioloog en lugbesoedeling N. B. STRYDOM, Ph.D. (Phys.) (Illinois) (Genoot) Although the industrial physiologist can still be regarded as a rarity in South African industry, it is obvious that he could make a positive contribution to the control of air pollution. For the past twenty-two years, the gold-mining industry has invoked the aid of industrial physiologists in solving various problems that continually crop up in the more effective and safer utilization of man-power. Air pollution is only one facet that has received attention. It can be stated emphatically that other industries could gain many advantages from the employment of this type of specialist. Because of inadequate opportunities for academic training, however, the industrial physiologists available might not be enough to fill all the possible posts in industry at present, but confidence is expressed that interested persons will soon be able to follow a full university course in this field of study.