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Articles 287071 - 287100 of 303189

Full-Text Articles in Physical Sciences and Mathematics

Evaluation Of Late Maturing Clover Cultivars. Woogenellup Alternative Clovers. Selection For Bluegreen Aphid Resistance. Root Rot Resistance., D. J. Gillespie Jan 1980

Evaluation Of Late Maturing Clover Cultivars. Woogenellup Alternative Clovers. Selection For Bluegreen Aphid Resistance. Root Rot Resistance., D. J. Gillespie

Experimental Summaries - Plant Research

Evaluation of Late Maturing Clover Cultivars. Bacchus Marsh, Clare, Cyprus, Daliak, Denmark Dinninup, Dwalganup, Esperance, Geraldton, Harbinger, Karridale, Larisa, Meteora, Mt. Barker, Nangeela, Northam, Northcliffe, Nungarin, Pitman serradella, Plantagenet, Seaton Park, Tallarook, Tornfield, Trikkala, Yarloop, Woogenellup,

1. Evaluation of late maturing clover cultivars. Three trials established in 1977 and due to terminate in 1979 were continued into 1980 to obtain further data on the performance of the late yanninicum Meteora {39327YB). A full report on the performance of this variety in these trials was prepared for the Herbage Plant Liaison Committee and is reproduced below. Table 1 - Residual Hard …


Macrobenthic Colonization Of Muddy And Sandy Substrates In The York River, Virginia, Thomas J. Fredette Jan 1980

Macrobenthic Colonization Of Muddy And Sandy Substrates In The York River, Virginia, Thomas J. Fredette

Dissertations, Theses, and Masters Projects

No abstract provided.


Angular And Energy Distribution Of Electrons From 15- To 150-Kev H0+He Collisions, M. Eugene Rudd, J. S. Risley, J. Fryar, R. G. Rolfes Jan 1980

Angular And Energy Distribution Of Electrons From 15- To 150-Kev H0+He Collisions, M. Eugene Rudd, J. S. Risley, J. Fryar, R. G. Rolfes

M. Eugene Rudd Publications

An electrostatic analyzer positioned at various angles has been used to measure absolute values of cross sections for electron production in collisions of neutral hydrogen atoms with helium as a function of the angle and energy of the ejected electrons. These cross sections are compared with corresponding ones for proton and electron impact to infer the mechanisms of electron production. A prominent peak in the energy distribution due to electron loss from the projectile occurs at an electron velocity equal to that of the projectile. At very low electron energies the similarity of the energy distribution to that due to …


The Cepheid Luminosity Scale, Edward G. Schmidt Jan 1980

The Cepheid Luminosity Scale, Edward G. Schmidt

Edward Schmidt Publications

The distance moduli of galactic clusters containing classical Cepheids are being redetermined using the four-color and Hβ photometric system. The results for four clusters are presented here and it is found that the distance moduli are smaller than previous values. Possible reasons for this discrepancy are discussed.


A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam Jan 1980

A. Inoculum Of The Take-All Fungus And Prediction Of Take-All. B. Hypovirulent Strains And Control Of Take-All., K Sivasithamparam

Experimental Summaries - Plant Research

Contents: A. Inoculum of the take-all fungus and the prediction of take-all. 1. Time of sampling 1a Newdegate 1b Badgingarra 1c Kulin 2. Inoculum from grass and wheat residues - Esperance. 3. Hypovirulent strains and control of take-all 3a Esperance, 3b Newdegate. Results from the preliminary studies which commenced in 1978 have shown several interesting trends in the behaviour of the field inoculum of the take-all fungus (TAF). "Disease severity Assay" has emerged as a potentially useful assay of field soil. This assay reflects the level of disease severity (on a 0-5 scale) caused by the resident inoculum of the …


Pasture Species Research, C. M. Francis Jan 1980

Pasture Species Research, C. M. Francis

Experimental Summaries - Plant Research

EARLY MATURING MEDICS Early maturing Libyan lines with some tolerance to bluegreen aphids were sown at 6 sites, five in Western Australia and one in South Australia. Seed yield and hard seed data are currently being collated. Maturity and vigour was assessed at all sites and many of the new introductions are earlier than cv. Harbinger and its equal in vegetative growth. A much larger range (300 lines) was grown at Medina and will be introduced into country sites next year.

Kabatiella Research. In cooperation with Dr. D.L. Chatel, screening of introductions for resistance to Kabatiella caulivora continued in 1980. …


Hall-Coefficient And Resistivity At High Pressure In 1t-Tas2, Paul D. Hambourger, F. J. Disalvo Jan 1980

Hall-Coefficient And Resistivity At High Pressure In 1t-Tas2, Paul D. Hambourger, F. J. Disalvo

Physics Faculty Publications

No abstract provided.


Teleseismic Evidence For A Low-Velocity Body Under The Coso Geothermal Area, P. Reasenberg, W. Ellsworth, A. Walter Jan 1980

Teleseismic Evidence For A Low-Velocity Body Under The Coso Geothermal Area, P. Reasenberg, W. Ellsworth, A. Walter

United States Geological Survey: Staff Publications

Teleseismic P wave arrivals were recorded by a dense array of seismographs tations located in the Coso geothermal area, California. The resulting pattern of relative residuals reveals an area showing approximately 0.2-s excess travel time that migrates with changing source azimuth, suggesting that the area is the 'delay shadow' produced by a deep, low-velocity body. Inversion of the relative residual data for three-dimensional velocity structure determines the lateral variations in velocity to a depth of 22.5 km beneath the array. An intense low-velocity body, which coincides with the surface expressions of late Pleistocene rhyolitic volcanism, high heat flow, and hydrothermal …


Faulting Patterns In North-Central Nevada And Strength Of The Crust, Mary Lou Zoback, Mark D. Zoback Jan 1980

Faulting Patterns In North-Central Nevada And Strength Of The Crust, Mary Lou Zoback, Mark D. Zoback

United States Geological Survey: Staff Publications

NNE normal fault trends characterize much of the northern Basin and Range province. These faults make sharp bends to NNW and ENE trends in north- central Nevada in the vicinity of a mid-Miocene rift characterized by a zone of diabase dike swarms, graben-filling flows, and a coinciding aeromagnetic anomaly. Despite a roughly 45 ° change in the least principal stress direction since mid-Miocene time, pre-existing NNW- and ENE-trending faults in the vicinity of the rift accommodated the extension whereas regionally, major crustal blocks were faulted along a NNE trend, approximately perpendicular to the modern least principal stress direction. An assumed …


State Of Stress In The Conterminous United States, Mary Lou Zoback, Mark D. Zoback Jan 1980

State Of Stress In The Conterminous United States, Mary Lou Zoback, Mark D. Zoback

United States Geological Survey: Staff Publications

Inferring principal stress directions from geologic data, focal mechanisms, and in situ stress measurements, we have prepared a map of principal horizontal stress orientations for the conterminous United States. Stress provinces with linear dimensions which range between 100 and 2000 km were defined on the basis of the directions and relative magnitude of principal stresses. Within a given province, stress orientations appear quite uniform (usually within the estimated range of accuracy of the different methods used to determine stress). Available data on the transition in stress direction between the different stress provinces indicate that these transitions can be abrupt, occurring …


Determiningeons : A Computer Program For Approximating Lie Generators Admitted By Dynamical Systems, Gregory G. Nagao Jan 1980

Determiningeons : A Computer Program For Approximating Lie Generators Admitted By Dynamical Systems, Gregory G. Nagao

University of the Pacific Theses and Dissertations

As was recognized by same of the most reputable physicists of the world such as Galilee and Einstein, the basic laws of physics must inevitably be founded upon invariance principles. Galilean and special relativity stand as historical landmarks that emphasize this message. It's no wonder that the great developments of modern physics (such as those in elementary particle physics) have been keyed upon this concept.

The modern formulation of classical mechanics (see Abraham and Marsden [1]) is based upon "qualitative" or geometric analysis. This is primarily due to the works of Poincare. Poincare showed the value of such geometric analysis …


Prostaglandin Synthetase Inhibition By Cryogenine And Nesodine (Alkaloids Of Heimia Salicifolia) And A Related Synthetic Compound Jb-1-0 : A Thesis, William John Lema Jan 1980

Prostaglandin Synthetase Inhibition By Cryogenine And Nesodine (Alkaloids Of Heimia Salicifolia) And A Related Synthetic Compound Jb-1-0 : A Thesis, William John Lema

University of the Pacific Theses and Dissertations

Heimia salicifolia Link and Otto (family Lythraceae), alternatively named Heimis salicifolia (H.B.K.) Link, is a relatively small shrub found In tropical and subtropical regions of South America, Mexico and Texas (1-2). The plant is known under many common names such as "abre-o-sol" (sun-opener) in the Rio Grande del Sur, "quiebra arado" (plow-breaker) in Argentina and "herva de la vida" (herb of 11fe) in Brazil (1). There is much folklore associated with Heimia salicifolia. In Mexico the name sinicuiche (twisted foot) is used for the plant as well as for an intoxicating beverage produced from its leaves. Inbibiting the beverage is …


Ecological Study Of The Tidal Segment Of The James River Encompassing Hog Point (Site Of The Surry Nuclear Power Station) : Completion Report, Robert A. Jordan, Patrica A. Goodwin, Charles E. Sutton Jan 1980

Ecological Study Of The Tidal Segment Of The James River Encompassing Hog Point (Site Of The Surry Nuclear Power Station) : Completion Report, Robert A. Jordan, Patrica A. Goodwin, Charles E. Sutton

Reports

The Surry Power Station discharges cooling water into the transition zone of the James River. Phytoplankton, zooplankton, benthos, and fouling organism communities were sampled during the years 1969 through 1978, which encompassed a preoperational and an operational period. Temporal changes in the biotic communities followed seasonal patterns of temperature and salinity in the study area, and reflected inherent reproductive patterns of the organisms. Spatial patterns reflected the transport of organisms from the river in the vicinity of the intake to the zone encompassed by the discharge plume, as well as periodic bursts of meroplankton generation in the cooling water canals. …


Relation Of Magnetic And Gravity Field Data To Selected Structural Elements Of The Central Portion Of The Arkoma Basin, John H. Mcbride Jan 1980

Relation Of Magnetic And Gravity Field Data To Selected Structural Elements Of The Central Portion Of The Arkoma Basin, John H. Mcbride

Journal of the Arkansas Academy of Science

In order to acquire a greater understanding of some of the major basement structural features characteristic of the Arkoma basin, magnetic and gravity data have been collected and analyzed for a selected area. Several anomalies exist and are found to be associated with faulting or major fracturing in the Precambrian basement. Modelling of source bodies based on magnetic and gravity values provides quantitative estimates of the depth as well as the geometry of basement structural geology.


150 Ghz Observations Of Three Radio Galaxies, Menas Kafatos, R. W. Hobbs, S. P. Maran, L. W. Brown Jan 1980

150 Ghz Observations Of Three Radio Galaxies, Menas Kafatos, R. W. Hobbs, S. P. Maran, L. W. Brown

Mathematics, Physics, and Computer Science Faculty Articles and Research

Radio galaxies were observed for the first time at 150 GHz. The central sources in Cyg A and 3C Ill were detected, as were the two radio lobes of Cyg A. No emission was found from the central source in 3C 236. Each of these three central sources has been previously discussed as the site of the energy supply for the associated distant components. The millimeter-wavelength emission from the central sources in Cyg A and 3C 111 is probably due in each case to a compact component that is optically thin to synchrotron radiation above about 35 GHz. These components …


Evaluating Impacts On Continental Shelf Environments, Concepts And Prospects, Donald F. Boesch Jan 1980

Evaluating Impacts On Continental Shelf Environments, Concepts And Prospects, Donald F. Boesch

VIMS Books and Book Chapters

New and expanding activities on the continental shelf including disposal of wastes and dredged material, deepwater ports, floating nuclear power plants, mining, and oil and gas exploitation, have spawned increased interest in the ecology of continental shelf ecosystems and the environmental effects of these activities. Changing patterns of historical uses of the shelf environment, i.e., fishing and transportation, and as yet hypothetical new uses, such as tapping energy from the ocean's currents and gradients, will undoubtedly further increase our concern for the coastal oceans.


The Rush Creek – Lisco Structural Basin, Garden And Morrill Counties, Nebraska, Robert F. Diffendal Jr. Jan 1980

The Rush Creek – Lisco Structural Basin, Garden And Morrill Counties, Nebraska, Robert F. Diffendal Jr.

School of Natural Resources: Faculty Publications

Detailed field mapping of outcrops in southern Garden and Morrill counties, Nebraska, has revealed a drop of more than 60 m (200 ft) in 4.8 km (3 mi) in the elevation of the contact between the Brule Formation and the Ogallala Group as exposed on the east side of Rush Creek. Beds of silt, sand, siltstone, and volcanic ash locally dip to the northwest at angles up to 8.5'. The contact between the two formations cannot be seen on the west side of Rush Creek but beds in the Ogallala Group there dip to the north and northeast. Rocks north …


Iue Observations Of Two Late Type Stars: R Aql And W Hya, Menas Kafatos, A. G. Michalitsianos, R. W. Hobbs Jan 1980

Iue Observations Of Two Late Type Stars: R Aql And W Hya, Menas Kafatos, A. G. Michalitsianos, R. W. Hobbs

Mathematics, Physics, and Computer Science Faculty Articles and Research

Ultraviolet spectra of two late type M stars R Aql and W Hya were obtained with the International Ultraviolet Explorer (IUE). Spectra were obtained of R Aql near maximum (cf>=0.21) and minimum (cf>=0.65) of the visible light curve. We find that the absolute flux intensity of the Mgn resonance doublet (2796 A, 2803 A) is essentially the same at these phases in the visible light curve. A nebular emission feature at 3133 A is detected at minimum light in R Aql that is possibly due to 0 III. Mg II emission is totally absent in W Hya, which …


Nebraska Summary 001: Massey Ferguson 240 Diesel 8 Speed, Nebraska Tractor Test Lab Jan 1980

Nebraska Summary 001: Massey Ferguson 240 Diesel 8 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 1355: Steiger Panther Iii Pta-325 And Panther Iv Cs-325 Diesel 10-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1355: Steiger Panther Iii Pta-325 And Panther Iv Cs-325 Diesel 10-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 1355: Steiger Panther Iii Pta-325 And Panther Iv Cs-325 Diesel 10-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1355: Steiger Panther Iii Pta-325 And Panther Iv Cs-325 Diesel 10-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 1356: Versatile 835 Diesel 12-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1356: Versatile 835 Diesel 12-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 1357: John Deere 4440 Power Shift Diesel 8-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1357: John Deere 4440 Power Shift Diesel 8-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 1358: John Deere 4640 Power Shift Diesel 8-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1358: John Deere 4640 Power Shift Diesel 8-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 1359: John Deere 4040 Syncro Range Diesel 8-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1359: John Deere 4040 Syncro Range Diesel 8-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 1361: John Deere 4240 Syncro Range Diesel 8-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1361: John Deere 4240 Syncro Range Diesel 8-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 1360: John Deere 4040 Power Shift Diesel 8-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1360: John Deere 4040 Power Shift Diesel 8-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 1362: John Deere 4240 Power Shift Diesel 8-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1362: John Deere 4240 Power Shift Diesel 8-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 1363: Massy-Ferguson Mf205 Diesel 6-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1363: Massy-Ferguson Mf205 Diesel 6-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 1364: Massey-Ferguson Mf205-4 Diesel 6-Speed, Nebraska Tractor Test Lab Jan 1980

Test 1364: Massey-Ferguson Mf205-4 Diesel 6-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 …