Digital Commons Network^™

Measurement And Evaluation Of Blade Passage Frequency Fluctuations (A), Cole V. Duke, Scott D. Sommerfeldt, Kent L. Gee, Connor R. Duke

Faculty Publications

In the active control of tonal noise from cooling fans, one factor that can limit the achievable attenuation is fluctuation of the blade passage frequency in time. Large fluctuations in a short time can hinder the algorithm from converging to the optimal solution. Some fans have steadier speeds than others, which can be due to unsteady driving mechanisms or the physical structure of the fan. Environmental effects, such as back pressure and unsteady blade loading, can also cause the fan speed to fluctuate. The shifting in the blade passage frequency will be measured using a zero-crossing technique to track the …

Polarization Rotation Correction In Radiometry: An Error Analysis, David G. Long, Derek Hudson, Jeffrey R. Piepmeier

Faculty Publications

Yueh proposed a method of using the third Stokes parameter TU to correct brightness temperatures such as Tv and Th for polarization rotation. This paper presents an extended error analysis of the estimation of Tv , Th, and TQ equiv Tv - Th by Yueh's method. In order to carry out the analysis, we first develop a forward model of polarization rotation that accounts for the random nature of thermal radiation, receiver noise, and (to first order) calibration. Analytic formulas are then derived for the bias, standard deviation (STD), and root-mean-square error (RMSE) of estimated TQ, Tv , and Th, …

Sustainability Meets Profitability: The Convenient Truth Of How The Business Judgment Rule Protects A Board's Decision To Engage In Social Entrepreneurship, Janet E. Kerr

Cardozo Law Review

No abstract provided.

In-House Polymerase Chain Reaction For Affordable And Sustainable Chlamydia Trachomatis Detection In Trinidad And Tobago, Joanne Rampersad, Xiaohui Wang, Helen Gayadeen, Samuel Ramsewak, David Ammons

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

Objectives: To provide a preliminary assessment of in-house polymerase chain reaction (PCR) as an alternative to the more costly commercial test for detection of asymptomatic infection by Chlamydia trachomatis and to provide much needed demographic data on infection indicators within the Trinidad and Tobago public health care system.

Methods: An inexpensive in-house nested-PCR with an Internal Amplification Control was used to detect C. trachomatis and Neisseria gonorrhoeae in urine samples collected from 273 apparently healthy, pregnant women from March-September 2004 in Trinidad, West Indies. Demographic information on participants was collected and subjected to statistical analyses.

Results: C. trachomatis was detected …

Bs News

Building Services Engineering

No abstract provided.

Scholarship @ Rit Fall 2007, Rit Libraries Publishing And Scholarship Support Center

RIT Digital Archives

For all the world is a stage; Watch the language; It's not just academics! Understanding student retention; Storytelling as a human resource tool; Robotic platforms go underwater; Examining the work of philosopher Agnes Heller; Sustainability through servicizing; Scientific salami slicing; Students on campus; Developing a brand; Can we teach creativity?; Mathematical symmetry in reflections; An active learning model; Outcomes for graduates of baccalaureate interpreter preparation programs specializing in interpreting in k-12th grade settings; Creating an online community of scholars

The Relationship Between University Nursing Student Classroom Engagement Activities And Academic Performance, Helen Reyes

Doctoral Dissertations and Projects

Academia is struggling to meet an increasing nursing shortage with limited resources; therefore, student success is paramount in any university nursing program. Research data suggests one major reason for increased attrition rates is course failure. Research also reveals that college students often feel disengaged in the classroom. The purpose of this study was to explore the relationship between classroom engagement activities and the academic performance of professional nursing students. Is there a relationship between nursing student classroom engagement activities and academic performance? The Classroom Survey of Student Engagement (CLASSE) was administered to 317 university nursing students enrolled in seven different …

Vacancy Localization In The Square Dimer Model, Mark Bowick, J. Bouttier, Emmanuel Guitter, Monwhea Jeng

Physics - All Scholarship

We study the classical dimer model on a square lattice with a single vacancy by developing a graph-theoretic classification of the set of all configurations which extends the spanning tree formulation of close-packed dimers. With this formalism, we can address the question of the possible motion of the vacancy induced by dimer slidings. We find a probability 57/4-10Sqrt[2] for the vacancy to be strictly jammed in an infinite system. More generally, the size distribution of the domain accessible to the vacancy is characterized by a power law decay with exponent 9/8. On a finite system, the probability that a vacancy …

The Register, 2007-10-31, North Carolina Agricutural And Technical State University

NCAT Student Newspapers

No abstract provided.

Star Institute Receives $901,405 Grant For Teacher Science Education, Chapman University Media Relations

Chapman Press Releases 2003-2011

No abstract provided.

Volume 45, Number 11: October 31, 2007, University Of North Dakota

University Letter Archive

No abstract provided.

The Anchor, Volume 121.08: October 31, 2007, Hope College

The Anchor: 2007

The Anchor began in 1887 and was first issued weekly in 1914. Covering national and campus news alike, Hope College’s student-run newspaper has grown over the years to encompass over two-dozen editors, reporters, and staff. For much of The Anchor's history, the latest issue was distributed across campus each Wednesday throughout the academic school year (with few exceptions). In recent years The Anchor moved to monthly print issues and a more frequently updated website. The Anchor is now published in print twice per academic semester. Occasionally, the volume and/or issue numbering is irregular.

High Temperature Heat Exchanger Project: Quarterly Progress Report July 1, 2007 Through September 30, 2007, Anthony Hechanova

Publications (NSTD)

• Ceramatec Sulfuric Acid Decomposer. The numerical model of a SiC ceramic coupon with two layers of microchannels was developed. Calculations of the factor of safety and probability of failure for the case of a straight channel were performed. Results for a pressure of 7.5 MPa were performed. The thermal and mechanical stress analyses of the Ceramatec HTHX and decomposer were completed.

• Bayonet Heat Exchanger. The thermal and mechanical stress analyses of the bayonet type HTHX and decomposer (Sandia design) were completed. Temperature profiles obtained from thermocouples measured from the Sandia experiments have been applied to the whole packed …

Daily Eastern News: October 31, 2007, Eastern Illinois University

October

No abstract provided.

The Lumberjack, October 31, 2007

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

The Hilltop 10-31-2007, Hilltop Staff

The Hilltop: 2000 - 2010

No abstract provided.

Exceptionally Preserved Jellyfishes From The Middle Cambrian, Paulyn Cartwright, Susan L. Halgedahl, Jonathan R. Hendricks, Richard D. Jarrard, Antonio C. Marques, Allen G. Collins, Bruce S. Lieberman

Faculty Publications

Cnidarians represent an early diverging animal group and thus insight into their origin and diversification is key to understanding metazoan evolution. Further, cnidarian jellyfish comprise an important component of modern marine planktonic ecosystems. Here we report on exceptionally preserved cnidarian jellyfish fossils from the Middle Cambrian (~505 million years old) Marjum Formation of Utah. These are the first described Cambrian jellyfish fossils to display exquisite preservation of soft part anatomy including detailed features of structures interpreted as trailing tentacles and subumbrellar and exumbrellar surfaces. If the interpretation of these preserved characters is correct, their presence is diagnostic of modern jellyfish …

Montana Kaimin, October 31, 2007, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Forage Spokesman Information, Lowell J. Clifford, Barry Drury, John Mcglone, Mac Stone

Kentucky Grazing Conference

No abstract provided.

Techniques For Reducing Mud Problems And Improving Pasture Abused Areas, Ken Johnson

Kentucky Grazing Conference

I would like to approach this topic from two directions, mud control and then problem areas. Mud control in concentrated areas almost impossible with forages alone. Using a mud control product is usually advised. I will talk about several.

My Experiences With Summer Lovegrass, Tim Phillips

Kentucky Grazing Conference

I first heard about teff (Eragrostis tef) being used as a hay crop in early 2006 at a meeting near the Shenandoah Valley area of Virginia. The meeting was about orchardgrass production, so I was speaking about new varieties that are available for producers to grow. Several farmers had experienced massive stand losses of their established orchardgrass hay fields, so they had tried this ‘new’ summer annual grass. Some of the farmers were surprised that I knew about this grass, but I didn’t know about its use as a hay or pasture grass. Teff is the Ethiopian name for a …

Experiences With "Teff" (Summer Love Grass) In Kentucky, Bob Jaynes

Kentucky Grazing Conference

Following publicity about the Klamath Experiment Station evaluation of Teff as an annual forage in 2003 and 2004, requests for more information and seed sources kept KES staff busy for weeks last spring. We received over 300 contacts from 41 states. Local seed salesman Laverne Hankins processed over 150 orders for more than 5 tons of seed. Those who received seed were sent a questionnaire this fall in hopes that we would get feedback on growers experience with this new forage species. To date we have received responses from about 15 growers.

Options For Summer Grazing, David C. Ditsch

Kentucky Grazing Conference

Summer is the time during the growing season when shortages of forage most often occur in Kentucky. The summer of 2007 will long be remembered as one the warmest and driest in recent years and cause many livestock producers to evaluate their current forage systems. Most Kentucky pastures are predominately cool-season grasses such as tall fescue, orchardgrass and bluegrass. During the historically hot, dry periods in July and August, these species produce very little growth and can quickly become overgrazed. At this point, some producers have no alternative except to buy feed or begin feeding stored forage intended for winter …

Does Grazing Method Matter?, Garry D. Lacefield

Kentucky Grazing Conference

Interest in and opportunities for grazing continues to increase not only in Kentucky, but throughout the U.S. In Wisconsin, 12% or approximately 5000 dairymen are now using grazing. In Michigan, over 40% of the dairymen are using grazing for a significant part of their feed requirements. Over 15% of these dairymen are using intensive grazing. Similar numbers exist for Pennsylvania.

Surviving The 2007 Drought, Roy Burris

Kentucky Grazing Conference

Kentucky beef producers could feel the effects of the ’07 drought for a long time. Decisions made now will impact the ’08 and ’09 calf crops. The current hay/feed shortage has stimulated a lot of “panic buying”. Feedstuffs with very low nutritive values are being purchased at an alarming rate. These “feeds” are being purchased at much higher costs than we normally pay for good quality hay. If properly supplemented, they can be used successfully. However, their use to replace the normal hay supply could have disastrous results.

Recovering From The "Freeze" And "Drought" Of 2007, S. Ray Smith

Kentucky Grazing Conference

As all of you know, 2007 has been a devastating year for forage agriculture in Kentucky. The season started with an abnormally warm 7 weeks during late winter and early spring, which promoted lush vegetative growth. Normally this would have been a “good thing”, but it actually made forage plants more vulnerable to below freezing temperatures. Then the severe freeze occurred, with April 7, 8, and 9 the coldest 3 day period in April in KY history. Pastures were stunted for weeks and first cut hay yields were reduced by 35 to 100%. At this point we were still hopeful …

Foreword And Kfgc Award Winners [2007], Garry D. Lacefield, Christi L. Forsythe

Kentucky Grazing Conference

No abstract provided.

Using The Unidroit Principles To Fill Gaps In The Cisg, John Y. Gotanda

Working Paper Series

The United Nations Convention on the International Sale of Goods (CISG) sets forth only a basic framework for the recovery of damages, thereby giving a court of tribunal broad authority to determine an aggrieved party’s loss based on circumstances of the particular case. Unfortunately, the lack of specificity has resulted in much litigation, and seemingly conflicting results. To remedy this problem, some have argued that the gaps in the CISG damages provisions should be filled with the UNIDROIT Principles of International Commercial Contracts. In this paper, I argue that the gap-filling rules of CISG preclude the UNIDROIT Principles from being …

Ferroelectric Control Of Magnetism In Batio3/Fe Heterostructures Via Interface Strain Coupling, Sarbeswar Sahoo, Srinivas Polisetty, Chun-Gang Duan, Sitaram S. Jaswal, Evgeny Y. Tsymbal, Christian Binek

Christian Binek Publications

Reversible control of magnetism is reported for a Fe thin film in proximity of a BaTiO₃ single crystal. Large magnetization changes emerge in response to ferroelectric switching and structural transitions of BaTiO₃ controlled by applied electric fields and temperature, respectively. Interface strain coupling is the primary mechanism altering the induced magnetic anisotropy. As a result, coercivity changes up to 120% occur between the various structural states of BaTiO₃. Up to 20% coercivity change is achieved via electrical control at room temperature. Our all solid state ferroelectric-ferromagnetic heterostructures open viable possibilities for technological applications.

Unh Professor's New Book Offers Fresh Way To Think About Markets, Lori Wright

Media Relations

No abstract provided.