Physical Sciences and Mathematics Commons^™

Modeling Irda Performance: The Effect Of Irlap Negotiation Parameters On Throughput, Scott V. Hansen, Charles D. Knutson, Michael G. Robertson, Franklin E. Sorenson

Faculty Publications

The Infrared Data Association's (IrDA) infrared data transmission protocol is a widely used mechanism for short-range wireless data communications. In order to provide flexibility for connections between devices of potentially disparate capabilities, IrDA devices negotiate the values of several transmission parameters based on the capabilities of the devices establishing the connection. This paper describes the design and implementation of a software tool, Irdaperf, to model IrDA performance based on negotiated transmission parameters. Using Irdaperf, we demonstrate that for fast data rates, maximizing window size and data size are key factors for overcoming the negative effects of a relatively long link …

Decline Of The Red-Winged Blackbird Population In Ohio Correlated To Changes In Agriculture (1965-1996), Bradley F. Blackwell, Richard A. Dolbeer

United States Department of Agriculture Wildlife Services: Staff Publications

Based on North American Breeding Bird Survey (BBS) data since 1966, Ohio has traditionally hosted 1 of the highest breeding season densities of red-winged blackbirds (Agelaius phoeniceus) of any U.S. state or Canadian province. However, from 1966 through 1996, breeding populations of red-winged blackbirds in Ohio showed a marked decline (x̅ % change/yr in birds per route = -3.9), with breeding population indices decreasing by over 53%. Because the red-winged blackbird successfully adapted to habitats created by agricultural expansion over the last century and became a recognized pest of crops such as corn (Zea mays), …

Porcine Zona Pellucida Immunocontraception: Long-Term Health Effects On White-Tailed Deer, Lowell A. Miller, Ken Crane, Stan Gaddis, Gary J. Killian

United States Department of Agriculture Wildlife Services: Staff Publications

As part of a 9-year study on the contraceptive effects of Porcine Zona Pellucida (PZP) on white-tailed deer (Odocoileus virginianus), we analyzed serum chemistry panels during the first 4 years. This included the first 2 years when does were being actively immunized, and 2 years post-immunization. The chemistry panel was designed to detect pathologies that might result from the immunization of the deer. Blood chemistry results did not suggest any pathological changes resulting from the immunization. Seasonal differences in serum cholesterol were similar in both the control and PZP-treated groups. Seasonal changes in the mean body weights of …

Efficacy Of Wolfin To Repel Black-Tailed Deer, Dale L. Nolte, Kimberly K. Wagner

United States Department of Agriculture Wildlife Services: Staff Publications

Deer and elk provide many desirable recreational opportunities but also can cause severe conflicts with humans. Excluding them from agricultural resources or from roadways is desirable, but fencing is expensive. A chemical barrier would offer a feasible alternative to reduce damage caused by deer. A series of three tests was conducted to assess whether black-tailed deer avoided areas treated with Wolfin, a synthetic predator odor. Wolfin failed to repel deer during any of these trials. We conclude that Wolfin, as applied within this study, is unlikely to reduce problems roused by free-ranging deer. West. J Appl. For. 16(4):182-186.

Santa Clara Magazine, Volume 43 Number 2, Fall 2001, Santa Clara University

Santa Clara Magazine

4 - A GRAND WEEKEND By Adam Breen. At the Grand Anniversary Weekend in June, thousands of alumni, family, and friends gathered to celebrate 150 years of Santa Clara University.

12 - MUSICAL CHAIRS By Jacqueline Tasch. Peter Minowitz loves an audience, whether it is the students in his political science classes or the jazz lovers in local clubs.

14 - ASK THE EXPERTS By Elizabeth Kelley Gillogly '93. Santa Clara University ambassadors help recruit future Broncos.

16 - LESSONS FROM EL SALVADOR By Douglas Sweet. Faculty and students reflect on a spring break "immersion" trip, which for some was …

Double Diffraction Dissociation At The Fermilab Tevatron Collider, T. Affolder, Kenneth A. Bloom, Collider Detector At Fermilab Collaboration

Kenneth Bloom Publications

We present results from a measurement of double diffraction dissociation in p̅p collisions at the Fermilab Tevatron collider. The production cross section for events with a central pseudorapidity gap of width Δη⁰ > 3 (overlapping η=0) is found to be 4.43±0.02(stat) ± 1.18(syst) mb [3.42 ± 0.01(stat) ± 1.09(syst) mb] at √s=1800[630] GeV. Our results are compared with previous measurements and with predictions based on Regge theory and factorization.

Organic Vegetables : A Guide To Production, Steven Mccoy

Bulletins 4000 -

There appears to be considerable opportunity for the development of organic vegetable production in Western Australia for either fresh or processed product. While a number of growers are successfully producing relatively small quantities of organic vegetables for both domestic and export markets, few large scale commercial growers have sought to capitalise on this opportunity.

Consumer interest in organically grown vegetables has increased rapidly in recent years due largely to concerns relating to food safety, health and the environment. For more information on markets for organic vegetables refer to AGWEST publication “Market Prospects – Organic Carrots and other Vegetables”.

Derivation Of Del180 From Sediment Core Log Data' Implications For Millennial-Scale Climate Change In The Labrador Sea, M. E. Weber, Larry A. Mayer, C. Hillaire-Marcel, G. Bilodeau, F. Rack, R. N. Hiscott, A. E. Aksu

Center for Coastal and Ocean Mapping

Sediment core logs from six sediment cores in the Labrador Sea show millennial-scale climate variability during the last glacial by recording all Heinrich events and several major Dansgaard-Oeschger cycles. The same millennial-scale climate change is documented for surface water δ¹⁸O records of Neogloboquadrina pachyderma (left coiled); hence the surface water δ¹⁸O record can be derived from sediment core logging by means of multiple linear regression, providing a paleoclimate proxy record at very high temporal resolution (70 years). For the Labrador Sea, sediment core logs contain important information about deepwater current velocities and also reflect the variable …

Sensor-Assisted Video Mosaicing For Seafloor Mapping, Yuri Rzhanov, Randy G. Cutter Jr., Lloyd C. Huff

Center for Coastal and Ocean Mapping

This paper discusses a proposed processing technique for combining video imagery with auxiliary sensor information. The latter greatly simplifies image processing by reducing complexity of the transformation model. The mosaics produced by this technique are adequate for many applications, in particular habitat mapping. The algorithm is demonstrated through simulations and hardware configuration is described.

Solar: Towards A Flexible And Scalable Data-Fusion Infrastructure For Ubiquitous Computing, Guanling Chen, David Kotz

Dartmouth Scholarship

As we embed more computers into our daily environment, ubiquitous computing promises to make them less noticeable and to avoid information overload. We see, however, few ubiquitous applications that are able to adapt to the dynamics of user, physical, and computational context. The challenge is to allow applications flexible access to these sources, and yet scale to thousands of devices and sensors. In this paper we introduce our proposed infrastructure, Solar. In Solar, information sources produce events. Applications may subscribe to interesting sources directly, or they may instantiate and subscribe to a tree of operators that filter, transform, merge and …

คู่มือการดำเนินชีวิตสำหรับประชาชน ปี 2541 และทฤษฎีใหม่ พระราชดำรัส พระราชทานเมื่อ วันที่ 4 ธันวาคม 2540

Thai Environment

No abstract provided.

มองวิกฤติมหาอุทกภัย 2554 เพื่อแก้ไขวิกฤติภาวะโลกร้อน, มนนภา เทพสุด

Thai Environment

No abstract provided.

การแพร่กระจายของแก๊สเพอร์ฟลูออโรคาร์บอน (Pfcs)...แก๊สเรือนกระจกที่ไม่รู้จัก, เบญจลักษณ์ กาญจนเศรษฐ์

Thai Environment

No abstract provided.

เสียงรบกวนจากโรงไฟฟ้าถ่านหิน, นพภาพร พานิช

Thai Environment

No abstract provided.

การเฝ้าระวังคุณภาพน้ำเบื้องต้นโดยใช้การงอกของเมล็ดพืช, วรางคณา วิเศษมณี ลี

Thai Environment

No abstract provided.

เสวนาวิชาการ : เรื่อง "น้ำท่วม ภัยแล้ง แผ่นดินไหว: ภัยที่คนไทยควรรู้เพื่อเตรียมรับมือ", สถาบันวิจัยสภาวะแวดล้อม, จุฬาลงกรณ์มหาวิทยาลัย

Thai Environment

No abstract provided.

บรรณาธิการแถลง

Thai Environment

No abstract provided.

ข่าวและกิจกรรมสิ่งแวดล้อม

Thai Environment

No abstract provided.

การคุ้มครองสิทธิผู้บริโภค, วินัย ดะห์ลัน

Thai Environment

No abstract provided.

เทคโนโลยีสะอาด, วรรณา จินดาศรี

Thai Environment

No abstract provided.

สัมภาษณ์ : พลตรีสืบพงษ์ สังขะรมย์ ผู้อำนวยการสถาบันวิจัยวิทยาศาสตร์การแพทย์ทหาร กรมแพทย์ทหารบก : สงครามอาวุธเคมี-ชีวภาพ, กรชนก รักษาเสรี

Thai Environment

No abstract provided.

ก่ารจัดการอุบัติภัยจากสารเคมี : กรณีศึกษารถบรรทุก Acrylonitrile พลิกคว่ำ, สุชาดา ชินะจิตร

Thai Environment

No abstract provided.

ประเทศไทย : มาตรการขนส่งสารเคมีและวัตถุอันตราย, วรรณี พฤฒิถาวร

Thai Environment

No abstract provided.

โครงการรางวัลนวัตกรรมแห่งประเทศไทย, ขนิษฐา มารุ่งเรือง

Thai Environment

No abstract provided.

แนะนำโครงการของสถาบันวิจัยสภาวะแวดล้อม : การศึกษาเบื้องต้นต่อความต้องการใช้ระบบบำบัดน้ำเสียรวมในนิคมอุตสาหกรรมบางชัน, พักตร์ เพียรล้ำเลิศ

Thai Environment

No abstract provided.

Acoustic Wave Heating Of The Thermosphere, Michael P. Hickey Ph.D., G. Schubert, R. L. Walterscheid

Publications

A numerical model is used to study the dissipation in the thermosphere of upward propagating acoustic waves. Whereas dissipating gravity waves can cool the upper atmosphere through the effects of sensible heat flux divergence, it is found that acoustic waves mainly heat the thermosphere by viscous dissipation. Though the amplitudes of acoustic waves in the atmosphere are poorly constrained, the calculations suggest that dissipating acoustic waves can locally heat the thermosphere at rates of tens of kelvins per day and thereby contribute to the thermospheric energy balance. It is shown that viscous heating cannot be calculated from the divergence of …

A Statistical Study Of Transient Event Motion At Geosynchronous Orbit, Jeff Sanny, David Berube, D. G. Sibeck

Physics Faculty Works

The geosynchronous GOES 5 and GOES 6 satellites frequently observe transient events marked by magnetic field strength increases and bipolar magnetic field signatures lasting several minutes. In this study we report a survey of 87 events observed simultaneously by both GOES spacecraft (for a total of 174 individual observations) from August to December 1984. Events detected in the prenoon sector outnumbered those in the postnoon sector by about a 3 to 1 ratio. The distribution of the events versus local time exhibited a significant prenoon peak like the distribution of magnetic impulse events observed in high-latitude ground magnetometers. A cross-correlation …

The Standardized Fish Bioassay Procedure For Detecting And Culturing Actively Toxic Pfiesteria, Used By Two Reference Laboratories For Atlantic And Gulf Coast States, Joann M. Burkholder, Harold G. Marshall, David W. Seaborn, Nora J. Deamer-Melia

Biological Sciences Faculty Publications

In the absence of purified standards of toxins from Pfiesteria species, appropriately conducted fish bioassays are the "gold standard" that must be used to detect toxic strains of Pfiesteria slop. from natural estuarine water or sediment samples and to culture actively toxic Pfiesteria. In this article, we describe the standardized steps of our fish bioassay as an abbreviated term for a procedure that includes two sets of trials with fish, following the Henle-Koch postulates modified for toxic rather than infectious agents. This procedure was developed in 1991, and has been refined over more than 12 years of experience in …

Groundwater Study Of The Dumbleyung Townsite, Ben Whitfield

Resource management technical reports

A groundwater study was carried out at the Dumbleyung townsite to accelerate the implementation of effective salinity management options. The study consisted of a drilling investigation, expansion of a piezometer network, a pumping test, groundwater flow modelling and flood risk analysis.

Groundwater Study Of The Bruce Rock Townsite, Rosemary Nott

Resource management technical reports

A groundwater study of the townsite of Bruce Rock. It aimed to accelerate the implementation of effective salinity management options. The study consisted of drilling investation and installation of a piezometer network, a pumping test, groundwater flow modelling and a flood risk analysis.