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Full-Text Articles in Engineering

Nebraska Summary: S124 Massey Ferguson 3660, Nebraska Tractor Test Lab Jan 1990

Nebraska Summary: S124 Massey Ferguson 3660, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Nebraska Summary: S123 Massey Ferguson 3140, Nebraska Tractor Test Lab Jan 1990

Nebraska Summary: S123 Massey Ferguson 3140, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …


Test 1636: White 60 Diesel 18-Speed, Nebraska Tractor Test Lab Jan 1990

Test 1636: White 60 Diesel 18-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Adsorption Of Bromide Tracers Onto Sediment, John E. Gilley, S. C. Finkner, John W. Doran, E. R. Kottwitz Jan 1990

Adsorption Of Bromide Tracers Onto Sediment, John E. Gilley, S. C. Finkner, John W. Doran, E. R. Kottwitz

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Information concerning hydraulic parameters on upland areas could be greatly expanded through the use of tracing techniques. If bromide is used as a tracer, adsorption of bromide onto sediment may be of concern. Therefore, a laboratory study was conducted to identify the effects of sediment content and initial bromide concentration on adsorption of bromide for selected soils.
When bromide solutions were used within the appropriate instrument measurement range, neither soil texture, liming, nor sediment content were found to significantly affect adsorption of bromide. In contrast to systems using fluorescent dyes, correction factors for estimating adsorption of bromide are unnecessary. Since …


Enhanced Magneto-Optic Kerr Effects In Thin Magnetic/Metallic Layered Structures, William A. Mcgahan, Liang-Yao Chen, Z. S. Shan, David J. Sellmyer, John A. Woollam Dec 1989

Enhanced Magneto-Optic Kerr Effects In Thin Magnetic/Metallic Layered Structures, William A. Mcgahan, Liang-Yao Chen, Z. S. Shan, David J. Sellmyer, John A. Woollam

Department of Electrical and Computer Engineering: Faculty Publications

Enhanced Kerr rotation spectra are measured in thin magnetic layers on silver. Also, variable angle of incidence spectroscopic ellipsometry is employed to measure the optical dielectric function of both the thin magnetic layer and the underlying thick silver layer. These results are explained quantitatively using the electromagnetic theory for reflection of light from multiple layers of isotropic and gyrotropic materials.


Ellipsometric Study Of Al2O3/Ag/Si And Sio2/Ag/Quartz Ashed In An Oxygen Plasma, Bhola N. De, John A. Woollam Dec 1989

Ellipsometric Study Of Al2O3/Ag/Si And Sio2/Ag/Quartz Ashed In An Oxygen Plasma, Bhola N. De, John A. Woollam

Department of Electrical and Computer Engineering: Faculty Publications

Using monolayer-sensitive variable angle of incidence spectroscopic ellipsometry, the silver oxide growth on a silver mirror, coated with an Al2 O3 or SiO2 protective layer, was investigated. The oxidation was done in a pure oxygen plasma asher. The resulting silver oxide growth was monitored accurately as a function of exposure time in the plasma asher. It was found that silver was converted to silver oxide under the protective coating, during ashing of a sample. The optical constants of a dense silver oxide thin film, created by oxidizing in the asher, were also measured.


Conformational Changes In An Epitope Localized To The Nh2-Terminal Region Of Protein C, Carolyn L. Orthener, Rapti D. Madurawe, William H. Velander, William N. Drohan, Frances D. Bettey, Dudley K. Strickhand Nov 1989

Conformational Changes In An Epitope Localized To The Nh2-Terminal Region Of Protein C, Carolyn L. Orthener, Rapti D. Madurawe, William H. Velander, William N. Drohan, Frances D. Bettey, Dudley K. Strickhand

Papers in Biotechnology

Murine monoclonal antibodies, developed following immunization with human protein C, were characterized for their ability tboin d antigen in thpe resence of either CaClz or excess EDTA. Three stablec lones were obtained which produced antiboditehsa t bound to protein C only itnh e presence of EDTA. Allt hree antibodies bound to the light choafi np rotein C on immunoblots and also bound to the homologous proteins factor X and prothrombin in solid-phase radioimmunoassays. One antibody, 7D7B10 was purified and studied further. The binding of 7D7B10 to human protein C was characterized bya KOo f 1.4 nM. In competition studies, it …


Acuta Enews November 1989, Vol. 18, No. 11 Nov 1989

Acuta Enews November 1989, Vol. 18, No. 11

ACUTA Newsletters

In This Issue

A Conversation with Kid Malott, ACUTA Post President

Message From The President

Toronto Seminar a Smash!

Update: More on McGill..

Changing your prefix? Read this first...

Administrative Director's Column


Ordination And Mapping Of Wetland Communities In Nebraska's Rainwater Basin Region, Michael C. Gilbert Nov 1989

Ordination And Mapping Of Wetland Communities In Nebraska's Rainwater Basin Region, Michael C. Gilbert

United States Army Corps of Engineers, Omaha District

Forty-seven Rainwater Basin wetlands of south-central Nebraska were evaluated to provide information on vegetation composition, species assemblages determined from direct and indirect ordination methodology, and community characteristics derived from wetlands mapping. Vegetation/soil relationships were evaluated from both vegetational stand and mapping data. Seasonal and year to year vegetation dynamics were evaluated for one study site, Harvard Marsh.

Ordination of vegetational data was accomplished by use of weighted averaging and detrended correspondence analysis. Weighted average ordination results indicated wetland status for the Fillmore, Scott and Massie soil series. Occurrence of upland vegetation on hydric soils and wetland vegetation on non-hydric soils …


Triggering In Trigatron Spark Gaps: A Fundamental Study, P. F. Williams, F. E. Peterkin Nov 1989

Triggering In Trigatron Spark Gaps: A Fundamental Study, P. F. Williams, F. E. Peterkin

P. F. (Paul Frazer) Williams Publications

The trigatron has been in widespread use as a demand-triggered, high-voltage switch for more than 40 years. In spite of the popularity and maturity of the technology, there persists an uncertainty over the basic physical mechanism(s) responsible for triggering breakdown in the devices. We present the results of an empirical study of trigatrons that demonstrates that breakdown is initiated by a streamer launched from the trigger pin, independent of the trigger spark. We compare our results with those of previous workers, and discuss the generality of our conclusions.


Acuta Enews October 1989, Vol. 18, No. 10 Oct 1989

Acuta Enews October 1989, Vol. 18, No. 10

ACUTA Newsletters

In This Issue

One of the hottest topics among ACUTA members... Student Services

DO KNOW YOUR ACUTA REGION?

Message From The President

Focus on ACUTA News:

Then and Now

User Groups

Party Line


Test 1630: John Deere 4755 And 4760 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab Oct 1989

Test 1630: John Deere 4755 And 4760 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Test 1629: John Deere 4555 And 4560 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab Oct 1989

Test 1629: John Deere 4555 And 4560 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Acuta Enews September 1989, Vol. 18, No. 9 Sep 1989

Acuta Enews September 1989, Vol. 18, No. 9

ACUTA Newsletters

In This Issue

ln Memory of Bill D. Morris

Reflection on Bill Morris

Message From The President

Party Line

Protect Your Call Records


A Simplified Equation For Modeling Sediment Transport Capacity, S. C. Finkner, M. A. Nearing, G. R. Foster, John E. Gilley Sep 1989

A Simplified Equation For Modeling Sediment Transport Capacity, S. C. Finkner, M. A. Nearing, G. R. Foster, John E. Gilley

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Sediment transport capacity for shallow overland flow was represented as a quadratic function of downslope distance using the assumption of a linear increase in overland flow discharge with downslope distance and an approximation to the Yalin equation for sediment transport capacity. The simplified equation for sediment transport applies to complex topography having uniform soil and management characteristics. The simplified equation accurately approximated the Yalin equation when calibrated using the average of the hydraulic shear stresses at the end of a constant slope reference profile and the end of the actual profile. The simplified equation is useful in deriving closed-form solutions …


Test 1628: John Deere 4455 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab Sep 1989

Test 1628: John Deere 4455 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Test 1626: John Deere 4055 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab Sep 1989

Test 1626: John Deere 4055 Quadrange Diesel 16-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Irrigation Soybeans By Growth Stages In Nebraska, N. L. Klocke, Dean E. Eisenhauer, James E. Specht, Roger Wesley Elmore, Gary W. Hergert Sep 1989

Irrigation Soybeans By Growth Stages In Nebraska, N. L. Klocke, Dean E. Eisenhauer, James E. Specht, Roger Wesley Elmore, Gary W. Hergert

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Irrigated soybean production in Nebraska spans a region with diverse soils and climates. Irrigators can easily adopt irrigation scheduling using a stage of growth for timing applications. However, simplifying assumptions, including soil water holding capacity, rainfall, stored soil water, and adequate irrigation system capacity, are implicit in the development of stage of growth irrigation scheduling recommendations. Reliance on these can lead to misapplication of irrigation water.
This project tested irrigation scheduling techniques for indeterminate soybean production in Nebraska, with stage of growth indicating the initiation of irrigation. The range of soils and climate in the study area gave a range …


Acuta Enews August 1989, Vol. 18, No. 8 Aug 1989

Acuta Enews August 1989, Vol. 18, No. 8

ACUTA Newsletters

In This Issue

ACUTA Conference o Success in Philly!

PHILADELPHIA BOARD MEETING

MESSAGE FROM THE PRESIDENT

First Timers Contest

USER Groups

Party Line


Agricultural Mechanics Instruction In Nebraska Secondary Vocational Agriculture Programs For The 1990s, Neal Joseph Schlautman Aug 1989

Agricultural Mechanics Instruction In Nebraska Secondary Vocational Agriculture Programs For The 1990s, Neal Joseph Schlautman

Department of Agricultural Leadership, Education, and Communication: Dissertations, Theses, and Student Research

The study was conducted to determine agricultural mechanics units of instruction that should be included and the extent to which they should be included in the Nebraska high school vocational agriculture curriculum in the 1990's as perceived by three respondent groups. The respondent groups included 36 vocational agriculture instructors, 36 farm operators and 36 managers of mechanics related agribusinesses in Nebraska. A mailed survey was used to collect data for the study. The survey return rate for the vocational agriculture instructors was 100 percent, the return rate for the farm operators was 89 percent and the return rate for the …


Fm 8-10-8, Medical Intelligence In A Theater Of Operations, July 1989, Us Army, Academy Of Health Sciences, Robert Bolin , Depositor Jul 1989

Fm 8-10-8, Medical Intelligence In A Theater Of Operations, July 1989, Us Army, Academy Of Health Sciences, Robert Bolin , Depositor

United States Department of Defense Military Intelligence

This manual explains the importance of medical intelligence in planning and execution of military operations. It describes the responsibilities of medical and intelligence staffs and personnel at each echelon especially within a US military command in the field. It explains the role and functions of the Armed Forces Medical Intelligence Center which provides “medical scientific and technical intelligence and general medical intelligence” for the US Armed Forces.

The manual explains procedures used to report intelligence information and to request intelligence reports as well as the forms used for those purposes.

The references anticipated the publication of an overdue updated to …


Acuta Enews July 1989, Vol. 18, No. 7 Jul 1989

Acuta Enews July 1989, Vol. 18, No. 7

ACUTA Newsletters

In This Issue

President's Message

ACUTA Welcomes Two New Staff Members to Serve you!

Nanci Unger, Publications Editor

Don't Miss ACUTA's 18th Annual Conference and Exhibit Show July 23-27 in Philadekphia

Kellie Preston Promoted to Staff and Events Coordinator

Another First for ACUTA: Live Satellite Transmission Planned for Annual Conference


Acuta Enews June 1989, Vol. 18, No. 6 Jun 1989

Acuta Enews June 1989, Vol. 18, No. 6

ACUTA Newsletters

In This Issue

President's Message

Party Line

Administrative Director's Office

The Secondary Marker: Working to Save You Money

The Battle Continues: Centrex vs PBX

Used Equipment Isn't Necessarily Abused Equipment


Simultaneous Correlation Of Excess Gibbs Energy And Enthalpy Of Mixing By The Uniquac Equation, Yaşar Demirel, Hatice Gecegörmez Jun 1989

Simultaneous Correlation Of Excess Gibbs Energy And Enthalpy Of Mixing By The Uniquac Equation, Yaşar Demirel, Hatice Gecegörmez

Papers in Analytical Chemistry

Using data for excess Gibbs energy gh and enthalpy of mixing hE, temperature dependent parameters of the UNlQUAC equation have been estimated for twenty four systems of binary mixtures. Fifteen of them include data for gh and hE at more than one isotherm. These parameters are later tested in predicting the gh and hE data simultaneously and representing the effect of temperature on such data. The UNIQUAC equation with temperature dependent parameters represents larger values of maximum heat of mixing than does the UNlQUAC equation with the parameters independent of temperature.


Test 1625: John Deere 8960 Powersync Diesel 12 And 24-Speed, Nebraska Tractor Test Lab Jun 1989

Test 1625: John Deere 8960 Powersync Diesel 12 And 24-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Performance Of Solar-Assisted Modified-Open-Front Swine Nurseries, G. R. Bodman, M. F. Kocher, J. A. Deshazer Jun 1989

Performance Of Solar-Assisted Modified-Open-Front Swine Nurseries, G. R. Bodman, M. F. Kocher, J. A. Deshazer

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Performance data of two modified-open-front non-mechanically ventilated swine nurseries have shown that solar energy can be effectively utilized to maintain a productive environment within the animal space during cold weather (temperatures as low as -26°C ( - 15 °F). The nurseries feature a monoslope roof design and passive collector panels that also function as warm weather ventilation panels. An active solar-heating system uses a ground-level collector operated in conjunction with an in-floor solar heat distribution and storage system. The nurseries were designed to handle pigs weighing from 7 to 23 kg (15 to 50 lb). An average of 19% of …


Radio-Frequency Plasma Chemical Vapor Deposition Growth Of Diamond, Duane E. Meyer, Rodney O. Dillon, John A. Woollam May 1989

Radio-Frequency Plasma Chemical Vapor Deposition Growth Of Diamond, Duane E. Meyer, Rodney O. Dillon, John A. Woollam

Department of Electrical and Computer Engineering: Faculty Publications

Plasma chemical vapor deposition (CVD) at 13.56 MHz has been used to produce diamond particles in two different inductively coupled systems with a mixture of methane and hydrogen. The effect of a diamond-like carbon (DLC) overcoating on silicon, niobium, and stainless-steel substrates has been investigated and in the case of silicon has been found to enhance particle formation as compared to uncoated polished silicon. In addition the use of carbon monoxide in hydrogen has been found to produce well-defined individual faceted particles as well as polycrystalline films on quartz and DLC coated silicon substrates. Plasma CVD is a competitive approach …


Test 1623: John Deere 8560 Powersync Diesel 12 And 24-Speed, Nebraska Tractor Test Lab May 1989

Test 1623: John Deere 8560 Powersync Diesel 12 And 24-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Test 1624: John Deere 8760 Powersync Diesel 12 And 24-Speed, Nebraska Tractor Test Lab May 1989

Test 1624: John Deere 8760 Powersync Diesel 12 And 24-Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …


Optical- And Magnets-Optical Measurements Using A Variable Angle Of Incidence Spectroscopic Ellipsometer: Application To Dyco Multilayer, William A. Mcgahan, Z. S. Shan, Alan M. Massengale, Thomas E. Tiwald May 1989

Optical- And Magnets-Optical Measurements Using A Variable Angle Of Incidence Spectroscopic Ellipsometer: Application To Dyco Multilayer, William A. Mcgahan, Z. S. Shan, Alan M. Massengale, Thomas E. Tiwald

Department of Electrical and Computer Engineering: Faculty Publications

We have extended the technique of variable angle spectroscopic ellipsometry to measurement of the magneto-optical effects as a function of wavelength and angle of incidence and field strength. Results on DyCo multilayers are reported.