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Articles 193651 - 193680 of 196628
Full-Text Articles in Entire DC Network
Promotion Of Dropwise Condensation By Silicones, Charles Orlando Reed Jr.
Promotion Of Dropwise Condensation By Silicones, Charles Orlando Reed Jr.
Masters Theses
"Within this rather extensive field of study, transfer of heat through fluid films and heat transfer during the condensation process have been the subject of considerable thought and investigation both from a theoretical standpoint and with the aim of collecting data on specific systems to aid the design and construction of equipment in which heat transfer is involved….
The phenomenum of dropwise condensation has not become a common one in industrial practive for a number of reasons, namely, the difficulty in maintaining the activity of the promoter without frequent makeup because of impermanent attachment and volatility, the difficulty in finding …
A Study Of The Deleading Of Zinc Sulfide Concentrates, Larry Leroy Gidley
A Study Of The Deleading Of Zinc Sulfide Concentrates, Larry Leroy Gidley
Masters Theses
"The object of this research was to study the basic principles and optimum conditions for the deleading of commercial zinc sulfide concentrates by sublimation of the lead in the form of a sulfide. Present commercial practice conducts this sublimation in hearth roasters. This research considered only the variables affecting sublimation of the lead sulfide, not the types of applicable equipment, or other possible processes. However, the laboratory conditions were at least partially similar to those that could be obtained in commercial practice"--Object, page 1.
Development Of Large Hole Burn Cut Drift Rounds, Joseph J. Yancik Jr.
Development Of Large Hole Burn Cut Drift Rounds, Joseph J. Yancik Jr.
Masters Theses
"A decided change in the attitudes of mining management toward the need for mine research has taken place during the past decade. More emphasis is being placed not only on the improvement of existing mining methods, but also on the adaptation of new ideas. As the depletion of the high grade ore deposits in this country becomes a reality, the need for reducing the costs of mining is pressing. The successful exploitation of low grade ore bodies will depend upon the continued advancement in the science of mining.
The methods used today in driving a small drift or tunnel in …
Physical Properties Of Concrete At Early Ages, Peter G. Hansen
Physical Properties Of Concrete At Early Ages, Peter G. Hansen
Masters Theses
"One of the principal types of heavy duty pavements in use in Missouri and in many other states is that known as rigid type portland cement concrete.
There have been two major trends in this type of pavement design. One of these trends is the use of short slabs, i.e., 15 to 25 feet, with no reinforcement. Another trend consists of concrete slabs containing distributed reinforcement such as wire mesh or reinforcing bars with joints occurring at fairly large intervals of 50 to 100 feet. As loads on the highways have increased the designers have increased the slab thicknesses and …
The Strength Of Bituminous Mixtures And Their Behavior Under Repeated Loads, Leonard E. Wood, William Harner Goetz
The Strength Of Bituminous Mixtures And Their Behavior Under Repeated Loads, Leonard E. Wood, William Harner Goetz
JTRP Technical Reports
No abstract provided.
The Use Of Urban Characteristics In Estimating Internal Travel Patterns, John Wallace Barr
The Use Of Urban Characteristics In Estimating Internal Travel Patterns, John Wallace Barr
JTRP Technical Reports
No abstract provided.
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
JTRP Technical Reports
No abstract provided.
Permeability And Absorptivity Of Indiana Limestone Coarse Aggregates, William Lee Dolch
Permeability And Absorptivity Of Indiana Limestone Coarse Aggregates, William Lee Dolch
JTRP Technical Reports
No abstract provided.
Progress Report No. 4 On State Highway Needs In Indiana, Arthur K. Branham, Donald O. Covault, Harold L. Michael
Progress Report No. 4 On State Highway Needs In Indiana, Arthur K. Branham, Donald O. Covault, Harold L. Michael
JTRP Technical Reports
No abstract provided.
Plastic Moisture Barriers For Highway Subgrade Protection, J. Richard Bell, Eldon J. Yoder
Plastic Moisture Barriers For Highway Subgrade Protection, J. Richard Bell, Eldon J. Yoder
JTRP Technical Reports
No abstract provided.
Progress Report No. 3 On The Skid Resistance Study Experimental Federal Aid Project No. F-147(6), John Wallace Shupe
Progress Report No. 3 On The Skid Resistance Study Experimental Federal Aid Project No. F-147(6), John Wallace Shupe
JTRP Technical Reports
No abstract provided.
Progress Report No. 1 On The Skid Resistance Study, Experimental Test Section U.S. 421 South Of Kirklin, John Wallace Shupe
Progress Report No. 1 On The Skid Resistance Study, Experimental Test Section U.S. 421 South Of Kirklin, John Wallace Shupe
JTRP Technical Reports
No abstract provided.
Effect Of Crushed-Gravel Fine Aggregate On The Strength Of Asphaltic Surfacing Mixture, Robert P. Lottman, William Harner Goetz
Effect Of Crushed-Gravel Fine Aggregate On The Strength Of Asphaltic Surfacing Mixture, Robert P. Lottman, William Harner Goetz
JTRP Technical Reports
No abstract provided.
Report No. 2 On The Skid Tests Performed On Experimental Federal Aid Project Number F-147(6), Frank Melvin Holloway
Report No. 2 On The Skid Tests Performed On Experimental Federal Aid Project Number F-147(6), Frank Melvin Holloway
JTRP Technical Reports
No abstract provided.
Annual Report Of The Assistant Director, 1955-1956, Harold L. Michael
Annual Report Of The Assistant Director, 1955-1956, Harold L. Michael
JTRP Technical Reports
No abstract provided.
The Application Of Airphotos To Foundation Problems, Bruce Halsey Moore
The Application Of Airphotos To Foundation Problems, Bruce Halsey Moore
JTRP Technical Reports
No abstract provided.
Test 598: John Deere 620/630, Nebraska Tractor Test Lab
Test 598: John Deere 620/630, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: John Deere 620/630
TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear.
This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated.
BELT HORSEPOWER TESTS
TEST …
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
Road Roughness Measurements On Indiana Pavements, Frank Melvin Holloway
JTRP Technical Reports
No abstract provided.
Phase Relationships In The Quaternary System Lime-Titania-Zirconia-Silica, Robert Martin Gruver
Phase Relationships In The Quaternary System Lime-Titania-Zirconia-Silica, Robert Martin Gruver
Doctoral Dissertations
"The phase compatibility relationships for the quaternary system lime-titania-zirconia-silica have been determined by a solid-phase-reaction technique.
Preliminary division of the system into Alkemade tetrahedra was based on the phases found in samples by X-ray diffraction analysis. These samples covered the entire volume of the tetrahedron in a systematic fashion. When the quaternary system had been divided into regions or compatible phases, an analytical method was used to calculate the phase composition of each sample. The relative amounts of each phase in a sample determined by X-ray analysis were compared with the calculated quantities, and agreement between the two methods verified …
Observations Of The Manufacture And Placement Of Prefabricated Bridge Sections And Precast Concrete Riprap, Dave H. Sawyer
Observations Of The Manufacture And Placement Of Prefabricated Bridge Sections And Precast Concrete Riprap, Dave H. Sawyer
Kentucky Transportation Center Research Report
The design and equipment necessary in precast concrete operations has progressed in recent years to such an extent that the resulting products are now being used satisfactorily in many types of construction. This report covers two precast concrete products which the Department of Highways authorized in contracts let in 1954 and 1955. These items however, are not the first precast concrete products to be used by the Department. Two concrete bridges are known to have been precast and placed in Scott and Graves County sometime ago. Precast concrete cribbing has also been used for quite some time.
Geology And Mineral Resources Of Indochina, Au- Ngoc- Ho
Geology And Mineral Resources Of Indochina, Au- Ngoc- Ho
Bachelors Theses and Reports, 1928 - 1970
Located between the 100th and the 110th longitude east of Greenwich, between the 8th and 24th latitude north, Indochina is a peninsula known as "the balcony of Southeast Asia". It's three states Laos, Cambodia and Vietnam occupy an area as large as 770,000 square kilometers.
Observations Of Stabilized Turf Shoulders, Ellis G. Williams
Observations Of Stabilized Turf Shoulders, Ellis G. Williams
Kentucky Transportation Center Research Report
The improvement of highway shoulders, from the standpoint of appearance and practical value, has been and is at present of considerable interest to all highway departments. A great deal of effort has been expended in the past to develop grass combinations which not only will prevent natural erosion of the surface materials but also impart a pleasing appearance to shoulders and slopes. Attempts to include factors of practical value, such as safe support of traffic loads, have greatly magnified the problem. Numerous types of paved shoulders have been introduced which are quite satisfactory with respect to load bearing but are …
Test 569: Ford 960, Nebraska Tractor Test Lab
Test 569: Ford 960, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker ,point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST B: The throttle …
Test 563: Allis-Chalmers Wd-45 Diesel, Nebraska Tractor Test Lab
Test 563: Allis-Chalmers Wd-45 Diesel, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT: Allis-Chalmers WD-45 Diesel TEST A: The manufacturer's representative operates the tractor for a minimum of 12 hours using light to heavy drawbar loads in each gear. This serves as a period for limber up, general observation and adjustments. Adjustments that are permissible include valve tappet clearance, breaker, point gap, spark plug gaps, clutch and others of a similar nature. No new parts or accessories can be installed without having mention made of it in the report. No data' are recorded during this preliminary run except the time that the engine is operated. BELT HORSEPOWER TESTS TEST …
Field Manual Fm 30-16, Technical Intelligence, 26 August 1955, Robert Bolin , Depositor
Field Manual Fm 30-16, Technical Intelligence, 26 August 1955, Robert Bolin , Depositor
United States Department of Defense Military Intelligence
This manual outlines responsibilities for technical intelligence at all levels in the Army from the top level to units in the field. It discusses technical intelligence training, processing, and operations.
The modern US Army vision of the technical intelligence developed during World War II. The importance of studying foreign military equipment had become apparent and procedures for collecting and evaluating of equipment had been developed. Technical Intelligence procedures and organizations were refined during the cold war and Korean War. Period.
This manual represents a mature picture of Army technical intelligence as it was in the mid-1959s from the viewpoint of …
A Proposal For Two Computers Dealing With The Convolution Integral, Charles S. Williams Jr.
A Proposal For Two Computers Dealing With The Convolution Integral, Charles S. Williams Jr.
Electrical and Computer Engineering ETDs
The integral f(x) = g(x-y)h(Y)dy is known as a convolution integral. The first computer described herein will determine the function f when the functions g and h are known. The second computer will determine the function h when f and g are known; in using the second computer to find h, then the first computer is used for auxiliary computations.
Report No. 2 On A Study Of Runoff From Small Drainage Areas And The Opening In Attendant Drainage Structures, Eugene M. West, William H. Sammons
Report No. 2 On A Study Of Runoff From Small Drainage Areas And The Opening In Attendant Drainage Structures, Eugene M. West, William H. Sammons
Kentucky Transportation Center Research Report
No abstract provided.
Sanitary Sewerage And Storm Drainage Master Plan Map Figure 2, Metcalf & Eddy Engineers
Sanitary Sewerage And Storm Drainage Master Plan Map Figure 2, Metcalf & Eddy Engineers
Arthur N. Sollee, Sr. Textual Materials
Sanitary Sewerage Projects Construction Program map included with data for the report: A Factual Report on Annexation for the Metropolitan Area of Jacksonville Florida. Prepared by Metcalf & Eddy Engineers Boston, Massachusetts for Reynolds, Smith & Hills Architects & Engineers, Jacksonville Florida.
Sanitary Sewerage And Storm Drainage Master Plan Map Figure 3, Metcalf & Eddy Engineers
Sanitary Sewerage And Storm Drainage Master Plan Map Figure 3, Metcalf & Eddy Engineers
Arthur N. Sollee, Sr. Textual Materials
Sanitary Sewerage Projects Construction Program map included with data for the report: A Factual Report on Annexation for the Metropolitan Area of Jacksonville Florida. Prepared by Metcalf & Eddy Engineers Boston, Massachusetts for Reynolds, Smith & Hills Architects & Engineers, Jacksonville Florida. Construction stage paths marked and described by the legend.
Prediction Of Vapor-Liquid Equilibria, Daniel James Mchale
Prediction Of Vapor-Liquid Equilibria, Daniel James Mchale
Theses
Several equations for predicting vapor-liquid equilibria from the physical properties of the components have been proposed in the literature. Two equations of this type proposed by O. Redlich and others have been investigated to determine their utility.
Results indicate the two equations give fairly satisfactory results for nearly ideal solutions, but are unsatisfactory for non-ideal solutions. Knowledge of molecular interactions in the solution would be necessary before the predictions could be used with confidence.