Digital Commons Network^™

Investigation Into The B(E2) Anomaly In 144Nd Using Coulomb Excitation, C. R. Fitzpatrick, V. Werner, R. F. Casten, E. Williams, H. Ai, C. W. Beausang, R. Cakirli, G. Gurdal, A. Heinz, E. A. Mccutchan, D. A. Meyer, E. Novitski, J. Qian, R. Winkler

Physics Faculty Publications

The ratio of B(E2) strengths between the lowest lying members of the ground state band in ¹⁴⁴Nd, B_4/2 = B(E2; 4⁺₁ → 2⁺₁)/B(E2; 2⁺₁ → 0⁺₁), which is used to quantify collectivity in nonmagic nuclei, has been remeasured by means of Coulomb excitation. Ambiguities in literature values for this ratio have been resolved. The results are discussed in terms of the interplay of collective and single-particle degrees of freedom, and in the context of the formation of collective structures in the A = 140 mass region, and more …

Three-Body Equations Of Motion In Successive Post-Newtonian Approximations, Carlos O. Lousto, Hiroyuki Nakano

Articles

There are periodic solutions to the equal-mass three-body (and N-body) problem in Newtonian gravity. The figure-eight solution is one of them. In this paper, we discuss its solution in the first and second post-Newtonian approximations to General Relativity. To do so we derive the canonical equations of motion in the ADM gauge from the three-body Hamiltonian. We then integrate those equations numerically, showing that quantities such as the energy, linear and angular momenta are conserved down to numerical error. We also study the scaling of the initial parameters with the physical size of the triple system. In this way we …

The Daily Gamecock, Tuesday, September 16, 2008, University Of South Carolina, Office Of Student Media

September

No abstract provided.

Incorporating Complexity And Uncertainty In Planning Models For Engineering: Economic Analysis Within The U.S. Army Corps Of Engineers, Mark B. Gravens, Keith D. Hofseth, Richard M. Males, David A. Moser, Cory M. Rogers

Journal of Contemporary Water Research and Education

No abstract provided.

Developing Total Maximum Daily Loads Under Uncertainty: Decision Analysis And The Margin Of Safety, Daniel P. Ames, Upmanu Lall

Journal of Contemporary Water Research and Education

No abstract provided.

Lzfuzz: A Fast Compression-Based Fuzzer For Poorly Documented Protocols, Sergey Bratus, Axel Hansen, Anna Shubina

Computer Science Technical Reports

Real-world infrastructure offers many scenarios where protocols (and other details) are not released due to being considered too sensitive or for other reasons. This situation makes it hard to apply fuzzing techniques to test their security and reliability, since their full documentation is only available to their developers, and domain developer expertise does not necessarily intersect with fuzz-testing expertise (nor deployment responsibility). State-of-the-art fuzzing techniques, however, work best when protocol specifications are available. Still, operators whose networks include equipment communicating via proprietary protocols should be able to reap the benefits of fuzz-testing them. In particular, administrators should be able to …

Novel Variable Step Size Nlms Algorithms For Echo Cancellation, Mohammad Asif Iqbal, Steven L. Grant

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper we present two new variable step size (VSS) methods for adaptive filters. These vs.S methods are so effective; they eliminate the need for a separate double-talk detection algorithm in echo cancellation applications. the key feature of both approaches is the introduction of a new near-end signal energy estimator (NE-SEE) that provides accurate and computationally efficient estimates even during double-talk and echo path change events. the first vs.S algorithm applies the NESEE to the recently proposed Nonparametric vs.S NLMS (NPVSS-NLMS) algorithm. the resulting algorithm has excellent convergence characteristics with an intrinsic immunity to double-talk. the second approach is …

A-Priori Analysis Of Conditional Moment Closure Modeling Of A Temporal Ethylene Jet Flame With Soot Formation Using Direct Numerical Simulation, David O. Lignell, John C. Hewson, Jacqueline H. Chen

Faculty Publications

Modeling soot formation in turbulent nonpremixed combustion is a difficult problem. Unlike most gaseous combustion species, soot lacks a strong state relationship with the mixture fraction due to unsteady formation rates which overlap transport timescales, and strong differential diffusion between gaseous species and soot. The conditional moment closure model (CMC) has recently been applied to the problem of turbulent soot formation. A challenge in CMC modeling is the treatment of differential diffusion. Three-dimensional direct numerical simulation (DNS) of a nonpremixed ethylene jet flame with soot formation has been performed using a 19 species reduced ethylene mechanism and a four-step, three-moment, …

Fall Conference 2008: Making Excellence Inclusive, Center For Teaching & Learning, California Polytechnic State University - San Luis Obispo

Center for Teaching, Learning and Technology

No abstract provided.

Physics Minor 09/15/2008, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Ists E-Newsletter, September 15, 2008, Iowa Academy Of Science

ISTS Newsletter

In this issue:

--Message from the ISTS Chair, Morgan Masters

--Message from the Fall Conference Chair, Traci Maxted

--Message from the Vice Chair, De Anna Tibben

--Announcements

--Opportunities

--News

--Your ISTS Leadership Team

Confidence Intervals For Long Memory Regressions, Kyungduk Ko, Jaechoul Lee, Robert Lund

Mathematics Faculty Publications and Presentations

This paper proposes an accurate confidence interval for the trend parameter in a linear regression model with long memory errors. The interval is based upon an equivalent sum of squares method and is shown to perform comparably to a weighted least squares interval. The advantages of the proposed interval lies in its relative ease of computation and should be attractive to practitioners.

Biol 2103 Course Proposal 09/15/2008, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Songs From The Milky Way: Our Galaxy In Low Frequency Gravitational Waves, Shane L. Larson

Colloquia and Seminars

No abstract provided.

Verification Of Asphalt Concrete Performance Prediction Using Level 2 And Level 3 Inputs Of Mechanistic-Empirical Pavement Design Guide For Flexible Pavements Of The State Of New Jersey, Nusrat Siraj

Theses and Dissertations

The purpose of this thesis is to present the results of the verification study of the Mechanistic-Empirical Pavement Design Guide (M-EPDG) using level 2 and level 3 inputs. In addition, the challenges of verification of the predicted performance with the help of field-measured data of existing flexible pavements are also presented. In this study, twenty-five sections were analyzed covering a broad range of soil, environmental conditions, traffic volumes and pavement structures observed in the state of New Jersey. Predicted performance of various distresses, such as rutting, alligator cracking, longitudinal cracking, thermal cracking and International Roughness Index (IRI) were verified for …

Web-Based Information Management System For The Long Term Ecological Research Program In Kenting, Taiwan, Yang-Chi Chang, Meng-Tsung Lee, Kun-Chi Lai

Journal of Marine Science and Technology–Taiwan

This paper introduces a web-based information management system which has been set up as a collaborative facility to allow key environmental and ecological information access for the Long Term Ecological Research (LTER) in Kenting, Taiwan. The coral reef ecosystem degradation in Kenting has concerned both public and private sectors, for which a LTER team was formed to investigate the problem. A multi-functional web-based system integrates diverse data collections and analyses efforts of team members during the project span. It also provides authorities with effective information and knowledge for sustainable coral reef management. Three information technologies, web Database Management System (DBMS), …

Dynamic Reynolds Equation For Micropolar Fluid Lubrication Of Porous Slider Bearings, Neminath Bhujappa Naduvinamani, Gudadappagouda Basanagouda Marali

Journal of Marine Science and Technology–Taiwan

In this paper an attempt has been made to study the rheological effects of micropolar fluid lubricants on the steady state and dynamic behavior of porous slider bearings by considering the squeezing action. The general modified Reynolds-type equation of porous sliding-squeezing surfaces with micropolar fluids is derived for the assessment of dynamic characteristics of bearings with general film thickness. The detailed analysis is presented for the plane inclined porous slider bearings by using perturbation method. Two Reynolds-type equations corresponding to steady performance and perturbed characteristics are obtained. The closed form solution of these equations is obtained. The numerical computations of …

Monitor Newsletter September 15, 2008, Bowling Green State University

Monitor

Official Publication of Bowling Green State University for Faculty and Staff

September 15, 2008 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Aquatic Ecosystem Response To Storm Water Abatement Measures In The Ravines Of The Gvsu Allendale Campus: Establishment Of Base-Line Biological Condition, Eric Snyder, Jason Nelson, Jason Drogowski, Michelle Harju

Technical Reports

The ravine tributary streams surrounding Grand Valley State Universities Allendale campus represent unique and understudied ecosystems, worthy of significant restoration efforts and of long-lasting protection. They are variously affected by storm water runoff, representing a spectrum from severely impacted to relatively pristine. Quantitative macroinvertebrate samples taken from six streams in late June 2007, indicated that insect diversity was positively correlated to ammonium (p=0.057), while total abundance was negatively correlated to phosphate and chlorophyll-a concentration (n.s.). In addition, phosphate, nitrate, sulfate and iron concentrations were elevated in streams that experience significant storm-water runoff and these streams also tended to have …

Determining The Repair Ranking Of Existing Rc Bridges Using Multi-Pole Fuzzy Pattern Recognition Evaluation Method, Ming-Te Liang, Ting- Bang Chu, Wen-Hu Tsao, Chi-Jang Yeh

Journal of Marine Science and Technology–Taiwan

This paper proposes a technique for determining the repair ranking of existing reinforced concrete (RC) bridges using the multi-pole fuzzy pattern recognition evaluation method. The differences between bridges and grades are expressed by weighted generalized weight distance. To find the optimal relative membership degree of an evaluated bridge attributed to any grade, the operative principle is that the sum of the square of weighted generalized weight distance is minimum. Based on this principle, the problem of extreme value is established by the objective function in connection with constraint condition. Using the Lagrangean method, the multi-pole fuzzy pattern recognition evaluation method …

Spin Memristive Systems: Spin Memory Effects In Semiconductor Spintronics, Yuriy V. Pershin Dr, M. Di Ventra

Faculty Publications

Recently, in addition to the well-known resistor, capacitor, and inductor, a fourth passive circuit element, named memristor, has been identified following theoretical predictions. The model example used in such case consisted in a nanoscale system with coupled ionic and electronic transport. Here, we discuss a system whose memristive behavior is based entirely on the electron-spin degree of freedom, which allows for a more convenient control than the ionic transport in nanostructures. An analysis of time-dependent spin transport at a semiconductor/ferromagnet junction provides a direct evidence of memristive behavior. Our scheme is fundamentally different from previously discussed schemes of memristive systems …

Theoretical Study Of Compounds Containing Nitrogen In Or Near Strained Ring Structures., Rajeev Ramdatt Pandey

Theses and Dissertations

Ground and low-lying excited electronic states of difluorodiazirine (F 2CN2) were investigated using the recently revised variant of second-order Generalized Van Vleck Perturbation theory. It was shown that the CN2 ring is retained in all the low-lying excited states and that the compound is highly multireference in nature. The results are expected to be useful in describing the mechanism of the ultraviolet photolysis of this compound. Difluorophosphaazirine (F2CNP) is isovalent with F2CN 2 and presents useful similarities and differences. In mapping the potential energy surface of F2CNP, the geometrical parameters and harmonic vibration frequencies of six new local minima, besides …

Testing Diffusion Processes For Non-Stationarity, Jeff Hamrick, Murad S. Taqqu

Master of Science in Analytics (MSAN) Faculty Research

Financial data are often assumed to be generated by diffusions. Using recent results of Fan et al. (J Am Stat Assoc, 102:618–631, 2007; J Financ Econometer, 5:321–357, 2007) and a multiple comparisons procedure created by Benjamini and Hochberg (J R Stat Soc Ser B, 59:289–300, 1995), we develop a test for non-stationarity of a one-dimensional diffusion based on the time inhomogeneity of the diffusion function. The procedure uses a single sample path of the diffusion and involves two estimators, one temporal and one spatial. We first apply the test to simulated data generated from a variety of one-dimensional diffusions. We …

Grizzly Football Game Day Program, September 13, 2008, University Of Montana--Missoula. Athletics Department

Grizzly Football Game Day Programs, 1914-2012

Program created for a Grizzly football game.

Statistics B.A. Program And Curriculum Approval 09/12/2008, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Physics B.A. Program And Curriculum Approval 09/12/2008, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

The Tiger Vol. 102 Issue 15 2008-09-12, Clemson University

Tiger Newspapers

No abstract provided.

Csci 1251 Course Proposal 9/12/2008, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Biol 4004 Course Proposal 09/12/2008, Curriculum Committee

Curriculum Committee Reports

No abstract provided.