Physical Sciences and Mathematics Commons^™

Comparative Hydrometeorology Of Temperate And Semiarid Environments In India, Badrul Hasan

Drought Network News (1994-2001)

Out of a total cropped area of 178 m ha, India has 59 m ha of irrigated cropland. The remaining 119 m ha is rainfed. Crop production under rainfed conditions either occurs during the rainy season or depends on conserved or residual soil moisture. In temperate countries, the economy largely depends on production of goods and services that are less affected by the variabilities of weather. Although India receives adequate amounts of rainfall annually through the four different types of weather phenomena—southwest monsoon (74%), northeast monsoon (3%), pre-monsoon (13%), and post-monsoon (10%)—the distribution in time and space is erratic, resulting …

Persian Gulf Sea Surface Temperature As A Drought Diagnostic For Southern Iran, M. Jafar Nasemosadat

Drought Network News (1994-2001)

The Persian Gulf and Oman Sea, situated over the northwestern extremity of the tropical Indian Ocean, make up the southern border of Iran (Figure 1). During hot seasons, the sea surface temperatures (SSTs) of these water bodies are high, and a huge thermal trough system is usually dominant over the region (Bitan and Sa’aroni, 1992). The summer SSTs of the Persian Gulf are reported to be the highest in the world (Gabler, 1977).

About 30% of the total rain-bearing air masses coming to the country originate in north Africa, the Red Sea, and western Saudi Arabia (Khalili, 1992). These air …

Water Current, Volume 30, No. 5, October 1998

Water Current Newsletter

Interstate Compact Opinions Vary on Summer Tour
From the Director: Unit Staff Travel to September Events; Promoting a National Water Research Initiative; State Funding Review
Volunteers Help Improve Water Quality in Elm Creek Watershed Project
Cooperation Highlights Water Quality Tour
Water Quality Monitoring Workshop Targets Nebraska and Iowa Educators
Bringing Groundwater to Life
AWRA Call for Abstracts
SNRS Debuts Seminar Series
Water News Briefs
Elm Creek Project Wraps-Up
Valuing Prairie Wetlands
Second Annual NOFEE Conference to Hastings
Strategies for Coping with Pesticide Monitoring

Announcements: October 1998

Drought Network News (1994-2001)

Contents:

IUGG–99 XXII General Assembly - Inter-Association Symposium on Geophysical Hazards: Risk Assessment, Mitigation and Warning Systems

1999 National Disaster Medical System Conference

International Conference on Integrated Drought Management—Lessons for Sub-Saharan Africa

4th International Congress on Energy, Environment and Technological Innovation

Droughts In Tamil Nadu: A Qualitative And Quantitative Appraisal, K. K. Nathan

Drought Network News (1994-2001)

Tamil Nadu experiences recurrent droughts. Tamil literature also indicates that famine-like conditions prevailed during the Pandiyan Kingdom for nearly 12 years. The state normally benefits from northeast monsoon rainfall from October to December, unlike other regions of India, which are dominated by southwest monsoon rainfall.

In general, four major parameters determine the nature and extent of drought conditions in Tamil Nadu: (1) rainfall, (2) ground water, (3) reservoir levels, and (4) crop conditions. It is estimated that nearly 50% of the districts in the state are drought-prone. The state receives nearly 80% of its annual rainfall during the northeast monsoon, …

The Probe, Issue 193 – October 1998

The Probe: Newsletter of the National Animal Damage Control Association

Recollections, 1966-1996 -- James E. Forbes, Past President, NADCA
Giles Resigns as NADCA President
Executive Committee to Appoint President
Call for Papers: 14th Great Plains Wildlife Damage Control Conference; Theme: "Solving Conflicts between People and Exotic Wildlife"
Book Reviews: 'The Humane Approach to Living with Wildlife", Edited by John Hadidian, Guy Hodge, and John W. Grandy, Humane Society of the United States. Fulcrum Press, 1997. 255 pags with indices. $16.95 Softcover.
Review by Stephen Vantassel, NWCO Correspondent
Review by Gregory A. Giusti, Forest & Wildlands Advisor, Cooperative Extension, University of California

Antelope County Test-Hole Logs: Nebraska Water Survey Test-Hole Report No. 2, Sue Olafsen Lackey, Frank A. Smith, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

In 1930, the Conservation and Survey Division of the University of Nebraska and the United States Geological Survey began a program of cooperative groundwater studies in Nebraska. Since then test drilling by use of rotary drilling equipment has been an integral part of that program. This report contains logs of all the test holes drilled in the county under the program as well as those drilled by the Conservation and Survey Division with financial assistance from other government agencies.

The map in this report shows the location of all test holes drilled in the county since 1930.

Present techniques of …

Mountain Evolution And Environmental Changes Of Huangshan, China, P.-H. Huang, Robert F. Diffendal Jr., M. Yang, Patricia E. Helland

Department of Earth and Atmospheric Sciences: Faculty Publications

Huangshan (Yellow Mountain) is located in southern part of the lower reaches of the Yangtze River. The highest Lotus Flower peak is 1,864 m above sea level. Formative ages of the Huangshan and its granite, process of mountain geomorphic evolution from the Eocene to Quaternary, environmental changes of Quaternary, formative origin of beautiful peaks and fascinating rocks were studied and questionable "Pleistocene glaciation" was also discussed in this paper.

Certalert: Grasses Attractive To Hazardous Wildlife

Other Bird Strike and Aviation Materials

Recently, several reports have been received of airport owners or airport contractors planting disturbed areas (construction sites, re-grading projects, etc) with seed mixtures containing brown-top millet. All millets are a major attractant to doves and other seed eating birds.

Wave-Vector-Dependent Exchange Splitting In A Local Moment System, C. Waldfried, T. Mcavoy, D. Welipitiya, Takashi Komesu, Peter A. Dowben, Elio Vescovo

Peter Dowben Publications

Wave-vector-dependent exchange splitting in a local moment system The electronic structure of strained thin films of Gd has been studied with spin- and angle-resolved photoemission and spin-polarized inverse photoemission. The spin-dependent electronic structure is dominated by a very distinct k dependence of the exchange splitting. The surface magnetic structure is observed to be different from that of the bulk, as indicated by the different electronic structure and a much higher surface Curie temperature. The 4% strain within the Gd films results in an enhanced Curie temperature.

Validity Of Tolman’S Equation: How Large Should A Droplet Be?, Kenichiro Koga, Xiao Cheng Zeng, A.K. Shchekin

Xiao Cheng Zeng Publications

Surface tension and the length δ (distance between the Gibbs surface of tension R_s and the equimolar surface R_e) of simple liquid droplet (Lennard-Jones and Yukawa) are computed over a wide range of droplet sizes up to about 4x10⁶ molecules. The study is based on the Gibbs theory of capillarity combined with the density–functional approach to gas–liquid nucleation. Since this method provides behavior of the surface tension fully consistent with the tension of the planner surface, the constant in Tolman’s equation δ_x can be determined unequivocally from the asymptotic behavior of σ _s . Comparison …

Radial Distribution Of Electron Spectra From High-Energy Ions, Francis A. Cucinotta, Robert Katz, John W. Wilson

Robert Katz Publications

The average track model describes the response of physical and biological systems using radial dose distribution as the key physical descriptor. We report on an extension of this model to describe the average distribution of electron spectra as a function of radial distance from an ion. We present calculations of these spectra for ions of identical linear energy transfer (LET), but dissimilar charge and velocity to evaluate the differences in electron spectra from these ions. To illustrate the usefulness of the radial electron spectra for describing effects that are not described by electron dose, we consider the evaluation of the …

Higher-Order And Next-Nearest-Neighbor Néel Anisotropies , Y.T. Millev, Ralph Skomski, J. Kirschner

Ralph Skomski Publications

The problem of higher-order Néel anisotropies is solved by exploiting the addition theorem for spherical functions. A key advantage of the present approach is the orthonormal character of the expansion of the magnetic energy that simplifies the formalism and makes possible the treatment of nonideal morphologies as well. Explicit expressions for second-, fourth-, and sixth-order anisotropies are obtained for ideal bulk of fcc and bcc symmetry as well as for (001), (110), and (111) surfaces with nearest-neighbor (NN) Néel interactions. The systematic examination of the pair model involves partition by species of inequivalent sites, interaction spheres, and orders in the …

Hadronic Transitions Υ(2S)→Υ(1S), J. P. Alexander, Kenneth A. Bloom, Cleo Collaboration

Kenneth Bloom Publications

Using a 73.6 pb^-1 data sample of Υ(2S) events collected with the CLEO II detector at the Cornell Electron Storage Ring, we have investigated the hadronic transitions between the Υ(2S) and the Υ(1S). The dipion transition Υ(2S) → Υ(1S) π⁺π^- was studied using two different analysis techniques. Selecting events in which Υ(1S) → e⁺e^-, μ⁺μ^- (‘‘exclusive’’ analysis), and using the Υ(1S) leptonic branching fractions world averages from the PDG review, we obtained Ɓ(Υ(2S) …

Continuum Charged D* Spin Alignment At √S =10.5 Gev, G. Brandenburg, Kenneth A. Bloom, Cleo Collaboration

Kenneth Bloom Publications

A measurement of the spin alignment of charged D* mesons produced in continuum e⁺e^- → cc̅ events at √s = 10.5 GeV is presented. This study using 4.72 fb^-1 of CLEO II data shows that there is little evidence of any D* spin alignment.

Measurement Of The Branching Ratios For The Decays Of DS+ To Ηπ+, Η′Π+, Ηρ+, And Η′Ρ+, C. P. Jessop, Kenneth A. Bloom, Cleo Collaboration

Kenneth Bloom Publications

Using a data sample with an integrated luminosity of 3.9 fb^-1 collected in e⁺e^- annihilation with the CLEO-II detector at the Cornell Electron Storage Ring, we have measured the branching ratios for the decay modes D_s⁺ → (η, η′)π⁺ and D_s⁺ → (η, η′)ρ⁺ relative to D_s⁺ → φπ⁺. These decay modes are among the most common hadronic decays of the D_s⁺, and can be related by factorization to the semileptonic decays D_s⁺ → (η, η′)ℓ⁺ν₁ . …

Center For Sustainable Agricultural Systems Newsletter, September/October 1998

Center for Sustainable Agricultural Systems -- Newsletters 1993-2000

Contents:

A Broader View and Challenge for the CSAS

Highlights of Upcoming New Book: Under the Blade (Part 3)

Integrated Farm Update: Will Grazing Crop Residues Hurt Next Year's Yields?

Honeybee Populations Lowest Levels in Decade

Socrates Network in Europe

New Course: Urbanization of Rural Landscapes, Offered Spring Semester

Can Photoemission Accurately Probe The Bulk Electronic Structure Of The Complex Oxides?, Jaewu Choi, C. Waldfried, Sy_Hwang Liou, Peter A. Dowben

Peter Dowben Publications

The surface of the complex oxides, in particular the manganese perovskites, is dominated by a different free enthalpy at the surface. This can be demonstrated by surface segregation after annealing the samples. By comparing relative x-ray photoelectron spectroscopy intensities of the manganese perovskite La_1-xCa_xMnO₃ (x=0.1, 0.35) for different emission angles, the profile of elemental concentration was determined. Analysis shows evidence for pronounced surface segregation of calcium. Our results suggest that there are strong differences between surface and bulk enthalpies without segregation or surface relaxation. This is consistent with the previously observed surface resonance …

Can Photoemission Accurately Probe The Bulk Electronic Structure Of The Complex Oxides?, Jaewu Choi, C. Waldfried, Sy-Hwang Liou, Peter A. Dowben

Peter Dowben Publications

The surface of the complex oxides, in particular the manganese perovskites, is dominated by a different free enthalpy at the surface. This can be demonstrated by surface segregation after annealing the samples. By comparing relative x-ray photoelectron spectroscopy intensities of the manganese perovskite La_1-xCa_xMnO₃ (x=0.1, 0.35) for different emission angles, the profile of elemental concentration was determined. Analysis shows evidence for pronounced surface segregation of calcium. Our results suggest that there are strong differences between surface and bulk enthalpies without segregation or surface relaxation. This is consistent with the previously observed surface resonance in the …

The Probe, Issue 192 – September 1998

The Probe: Newsletter of the National Animal Damage Control Association

The Role of "Preventive Control" in Coyote Damage Management -- Mark Collinge, NADCA Vice-President
NADCA Member Has Syndicated Wildlife Column -- Andrea Kitay, Camarillo, California
Promoting Barn Owls to Control Rodents is Deception -- Rex E. Marsh
TWS Response to NADCA Proposal for Certification
Position Announcement: Wildlife-Communications Specialist, DEPARTMENT OF NATURAL RESOURCES, NEW YORK STATE COLLEGE OF AGRICULTURE AND LIFE SCIENCES, CORNELL UNIVERSITY
Plague Found in Captive Texas Prairie Dogs

Track Structure Model For Radial Distributions Of Electron Spectra And Event Spectra From High-Energy Ions, F. A. Cucinotta, Robert Katz, J. W. Wilson

Robert Katz Publications

An analytic method is described for evaluating the average radial electron spectrum and the radial and total frequency-event spectrum for high-energy ions. For high-energy ions, indirect events make important contributions to frequency-event spectra. The method used for evaluating indirect events is to fold the radial electron spectrum with measured frequency-event spectrum for photons or electrons. The contribution from direct events is treated using a spatially restricted linear energy transfer (LET). We find that high-energy heavy ions have a significantly reduced frequency-averaged lineal energy (YF) compared to LET, while relativistic protons have a significantly increased YF and dose-averaged lineal energy (YD) …

The Prairie Naturalist Volume 30, No. 3 September 1998

The Prairie Naturalist

GROWTH OF SPOTIED BASS IN KANSAS STREAMS AND IMPOUNDMENTS ▪ J. S. Tillma and C. S. Guy

SIZE SELECTION OF RAINBOW SMELT BY SMALL MESH GILL NETS ▪ C. E. Freiburger and W. G. Duffy

ABUNDANCE AND HABITAT AFFINITIES OF Cyclotracheius substriatus (Coleoptera: Carabidae) ON NORTHERN SHORTGRASS PRAIRIE ▪ N. E. Mcintyre 157

THE REPRODUCTIVE BIOLOGY OF CANDLE ANEMONE ▪ B. Molano-Flores and S. D. Hendrix

NOTES

Noteworthy Records of Bats from Southern Colorado ▪ E. W. Valdez

Eggshell Removal by Duck Hens Following

Partial Nest Depredation by Striped Skunk ▪ S. Lariviere and L. R. Walton

New Records of …

Holt County Test-Hole Logs: Nebraska Water Survey Test-Hole Report No. 45, Sue Olafsen Lackey, Frank A. Smith, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

In 1930, the Conservation and Survey Division of the University of Nebraska and the United States Geological Survey began a program of cooperative groundwater studies in Nebraska. Since then test drilling by use of rotary drilling equipment has been an integral part of that program. This report contains logs of all the test holes drilled in Holt County, Nebraska, under the program as well as those drilled by the Conservation and Survey Division with financial assistance from other government agencies.

The map in this report shows the location of all test holes drilled in Holt County, Nebraska from 1944 to …

Wavelength Conversion In Wdm Networking, Byrav Ramamurthy, Biswanath Mukherjee

School of Computing: Faculty Publications

Wavelength conversion has been proposed for use in wavelength-division multiplexed networks to improve efficiency. This study highlights systems challenges and performance issues which need to be addressed in order to incorporate wavelength conversion effectively. A review/survey of the enabling technologies, design methods, and analytical models used in wavelength-convertible networks is provided.

Optimizing Amplifier Placements In A Multiwavelength Optical Lan/Man: The Equally Powered-Wavelengths Case, Byrav Ramamurthy, Jason Iness, Biswanath Mukherjee

School of Computing: Faculty Publications

Wavelength division multiplexing (WDM) provides the ability to utilize the enormous bandwidth offered by optical networks, using today’s electronics. WDM-based optical networks employing passive-star couplers have been proposed for deployment in local and metropolitan areas. Optical amplification is often required in such networks to compensate for the signal attenuation along the fiber links and the splitting and coupling losses in the network. However, an optical amplifier has constraints on the maximum gain and the maximum output power it can supply; thus optical amplifier placement becomes a challenging problem. A simplifying assumption for analytical tractability requires that all wavelengths, present at …

Observation Of High Momentum Η′ Production In B Decays, T. E. Browder, Kenneth A. Bloom, Cleo Collaboration

Kenneth Bloom Publications

We report the first observation of B→ η′X transitions with high momentum η′ mesons. We observe 39.0 ± 11.6 B decay events with 2.0 < Pη′ < 2.7 GeV/c, the high momentum region where background from b → c processes is suppressed. We discuss the physical interpretation of the signal, including the possibility that it is due to b → sg* transitions. Given that interpretation, we find Ɓ(B →η′X_s) = [6.2 ± 1.6(stat) ± 1.3(syst) _-1.5^+0.0(bkg)] X 10^-4 for 2.0 < Pη′ < 2.7 GeV/c.

Orientation Of Nickelocene On Ag(100), D. L. Pugmire, C. M. Woodbridge, Marjorie Langell

Marjorie A. Langell Publications

High-resolution electron-energy-loss spectroscopy has been used to study the molecular adsorption of nickelocene, Ni(C₅H₅)₂, on Ag(100). Results indicate that at up to one monolayer coverage, nickelocene adsorbs molecularly with its axis approximately perpendicular to the surface. At very high coverages, the molecular axis is not exclusively oriented along the surface normal. This is possibly due to randomization of the metallocene orientation as multilayers are formed.

United States Patent: Lime Feeding Repellent, Jerrold L. Belant, Richard A. Dolbeer

USDA Wildlife Services: Staff Publications

Application of lime at a rate of 500 to 1500 kg/ha to plots desired to be protected from damage by avian and mammalian feeders has been shown to be quite effective. The lime may be administered to the plots in any form. Use of either powder or slurry form is preferred.

Method And Apparatus For Generating And Accelerating Ultrashort Electron Pulses, Donald P. Umstadter, Joon-Koo Kim, Evan Dodd

Donald Umstadter Publications

The invention provides a novel laser-plasma-based source of relativistic electrons; and a method to use laser-driven plasma waves as the basis for the source of electrons. The technique involves a combination of laser beams, which are focused in a plasma. One beam creates a wakefield plasma wave and the other beam alters the trajectory of background electrons, such that they become trapped in the plasma wave and are then accelerated to relativistic velocities, preferably in a distance less than a millimeter. In another embodiment, the second beam removes electrons from atomic ions previously generated by the first beam thereby providing …

Birds And Agroecological Relationships In Organic And Non-Organic Farmland, Nancy A. Beecher

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.