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2008

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Singularities Of Hinge Structures, Ciprian Borcea, Ileana Streinu Dec 2008

Singularities Of Hinge Structures, Ciprian Borcea, Ileana Streinu

Computer Science: Faculty Publications

Motivated by the hinge structure present in protein chains and other molecular conformations, we study the singularities of certain maps associated to body-and-hinge and panel-and-hinge chains. These are sequentially articulated systems where two consecutive rigid pieces are connected by a hinge, that is, a codimension two axis. The singularities, or critical points, correspond to a dimensional drop in the linear span of the axes, regarded as points on a Grassmann variety in its Pl¨ucker embedding. These results are valid in arbitrary dimension. The three dimensional case is also relevant in robotics.

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Some Results On Reduced Rings, Mehsin Jabel Atteya, Dalal Ibraheem Ressan Dec 2008

Some Results On Reduced Rings, Mehsin Jabel Atteya, Dalal Ibraheem Ressan

Baghdad Science Journal

The main purpose of this paper is to study some results concerning reduced ring with another concepts as semiprime ring ,prime ring,essential ideal ,derivations and homomorphism ,we give some results a bout that.

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Study Of Ratio Fission Width To Total Width For Fission Materials Bombarded By Monoenergitic Neutrons (2.4 Mev), Hadi Dawyich Zirzur Al-Attabi, Abbas Fadhil Al-Ammar, Hashim Ali Essa Dec 2008

Study Of Ratio Fission Width To Total Width For Fission Materials Bombarded By Monoenergitic Neutrons (2.4 Mev), Hadi Dawyich Zirzur Al-Attabi, Abbas Fadhil Al-Ammar, Hashim Ali Essa

Baghdad Science Journal

This study aims to know the way of the ratio fission width to total widthfor compound nuclei of fission materials , when it had been bombarded by monoenergetic neutrons as a function of nuclear radius and ranges ( 1-10) *10-13 cm , and it concluded the mathematical equations that can be used for this way of the study . Also we concluded the empirical relations by fitting method in which the ratio fission width to the total width for monoenergitic neutrons for various fission nucleuses, for Uranium-238 and Thorium-232 respectively.

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Oscillation Of Nonlinear Differential Equations With Advanced Arguments, Hussain Ali Mohamad, Sada F. Mohammed, Awatif A. Hassan Dec 2008

Oscillation Of Nonlinear Differential Equations With Advanced Arguments, Hussain Ali Mohamad, Sada F. Mohammed, Awatif A. Hassan

Baghdad Science Journal

This paper is concerned with the oscillation of all solutions of the n-th order delay differential equation x^(n)(t)+P(t) f(x((t)))=0, n≥2. The necessary and sufficient conditions for oscillatory solutions are obtained and other conditions for nonoscillatory solution to converge to zero are established.

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On Certain Sub-Space Of X, Mushtaq Shakir Al-Shaibani Dec 2008

On Certain Sub-Space Of X, Mushtaq Shakir Al-Shaibani

Baghdad Science Journal

The study of properties of space of entire functions of several complex variables was initiated by Kamthan [4] using the topological properties of the space. We have introduced in this paper the sub-space of space of entire functions of several complex variables which is studied by Kamthan.

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On Cso-Compact Space, Zina M. Kadem, Jalal Hatem Hussein Dec 2008

On Cso-Compact Space, Zina M. Kadem, Jalal Hatem Hussein

Baghdad Science Journal

The aim of this paper is to introduces and study the concept of CSO-compact space via the notation of simply-open sets as well as to investigate their relationship to some well known classes of topological spaces and give some of his properties.

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Optimal Color Model For Information Hidingin Color Images, Ali Kadhim Mousa, Zainab Hussain Kadhim Dec 2008

Optimal Color Model For Information Hidingin Color Images, Ali Kadhim Mousa, Zainab Hussain Kadhim

Baghdad Science Journal

In present work the effort has been put in finding the most suitable color model for the application of information hiding in color images. We test the most commonly used color models; RGB, YIQ, YUV, YCbCr1 and YCbCr2. The same procedures of embedding, detection and evaluation were applied to find which color model is most appropriate for information hiding. The new in this work, we take into consideration the value of errors that generated during transformations among color models. The results show YUV and YIQ color models are the best for information hiding in color images.

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An Approximate Solution Of Fredhom Integral Equation Using Bernstein Polynomials, Haleema S. Ali, Waleeda S. Ali Dec 2008

An Approximate Solution Of Fredhom Integral Equation Using Bernstein Polynomials, Haleema S. Ali, Waleeda S. Ali

Baghdad Science Journal

In this paper, Bernstein polynomials method has used to find an approximate solution for Fredholm integral equation of the second kind. These polynomials are incredibly useful mathematical tools, because they are simply defined, can be calculated quickly on computer systems and represent a tremendous variety of functions. They can be differentiated and integrated easily.

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Modeling Of Mixing Time For Bioreactors With Self-Inducing Impellers, Alaa K. M. Dec 2008

Modeling Of Mixing Time For Bioreactors With Self-Inducing Impellers, Alaa K. M.

Baghdad Science Journal

the mixing time is one of the most useful criterions for characterization of the broths mixing intensity and for scaling up of biosynthesis processes. this parameter value depends mainly on the presence of biomass in the broths, mixing system characteristics and operating conditions. For quantifying the influence of these factors on mixing efficiency, this study was carried out for simulated fermentation aerated broths consisted of carboxymethyl cellulose sodium salt (CMCNa) taking into account the broth's viscosity, rotation speed (rpm) and the stirrer geometry. The experimental results were used in obtaining a correlation to calculate the mixing time for Re <5000, domain of flow regime for which only few data are available from literature. t_m=1.6x10^3xμ^0.43_a/N^1.13X L^0.53 This model offer a good concordance with the experimental results, the average deviation being of 6.6% for CMCNa solutions and can be used for fermentation scaling up.

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Investigation Of Heterogeneity Of Fsw Inconel 718 Coupled With Welding Thermal Cycle, Dong Fang Huang Dec 2008

Investigation Of Heterogeneity Of Fsw Inconel 718 Coupled With Welding Thermal Cycle, Dong Fang Huang

Theses and Dissertations

In order to develop a better understanding of the property, microstructure evolution and thermal history of FSW Inconel 718's, the strain, strain rate and thermal cycles need to be determined. In order to estimate the strain field of a deformed body, a displacement function needs to be determined. A 3D deformation model was developed to determine the displacement coefficients. A rectangular box created in this model deforms following a linear displacement function. Three orthogonal planes cut this deformed box, which leads to three deformed planes. The shape parameters (L, H, θ¹ and θ²) on the three orthogonal planes can be …

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Importance Of Information And Communication Technologies (Icts) In Making A Heathy Information Society: A Case Study Of Ethiope East Local Government Area Of Delta State, Nigeria, Monday Obaidjevwe Ogbomo, Esoswo Francisca Ogbomo Dec 2008

Importance Of Information And Communication Technologies (Icts) In Making A Heathy Information Society: A Case Study Of Ethiope East Local Government Area Of Delta State, Nigeria, Monday Obaidjevwe Ogbomo, Esoswo Francisca Ogbomo

Library Philosophy and Practice (e-journal)

ICTs are crucially important for sustainable development in developing countries. For the past two decades, most developed countries have witnessed significant changes that can be traced to ICTs. These changes have been observed in economics, education, communication, and travel. Many initiatives have been taken at the international level to support Africa's efforts to develop a communication infrastructure and. This study uses a survey that employed a two-part questionnaire that collected data on the personal characteristics of the respondents and their use of ICTs. A sample of 120 respondents was used. The respondents were drawn from the Ethiope East local government …

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Electrothermal Imaging In One And Two Dimensions, Michael Janus, David Kibbling Dec 2008

Electrothermal Imaging In One And Two Dimensions, Michael Janus, David Kibbling

Mathematical Sciences Technical Reports (MSTR)

Developing methods for the nondestructive testing of materials is an important area of research for industry. Situations often arise in which the integrity of an object is questioned, but testing it is very difficult. For example, a support bar may be embedded in a larger structure so that testing the bar’s integrity directly would require the impractical task of breaking down the larger structure. Instead, the ends of the bar might be accessible without dismantling the enclosing structure. The goal of nondestructive testing is to use methods that require taking measurements at the ends of the bar alone to give …

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Board Of Trustees Meeting Minutes 2008-12-05, Bowling Green State University Dec 2008

Board Of Trustees Meeting Minutes 2008-12-05, Bowling Green State University

Board of Trustees Meeting Minutes

The official meeting minutes of Bowling Green State University's Board of Trustees.

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Determining The Shape Of A Resistor Grid, Esther Chiew, Vincent Selhorst-Jones Dec 2008

Determining The Shape Of A Resistor Grid, Esther Chiew, Vincent Selhorst-Jones

Mathematical Sciences Technical Reports (MSTR)

Impedance imaging has received a lot of attention in the past two decades, as a means for non-destructively imaging the interior of a conductive object. One injects a known electrical current pattern into an object at the exterior boundary, then measures the induced potential (voltage) on some portion of the boundary. The goal is to recover information about the interior conductivity of the object, which (we hope) influences the voltages we measure. Of course one can also use multiple input currents and measured voltages. A variation on this problem is that of "boundary identification," in which some portion of the …

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Campus Report, Vol. 36, No. 4, University Of Dayton Dec 2008

Campus Report, Vol. 36, No. 4, University Of Dayton

Campus Report

A $10 million gift sets a scholarship record; students raise $4,000 for a Marianist school in Africa; a news analyst and a diplomat discuss the "calamity of challenges" facing a new presidential administration; President Curran shares his confidence in UD's financial position; a sacristan and two archivists become history detectives; and six civil engineering students who spent the summer in Africa leave behind new friends, UD T-shirts, soccer cleats ... and clean water.

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Synthesis And Evaluation Of Structural Analogs Of Escherichia Coli Lipid A For Application Towards Cd14-Targeting Glycotherapeutics, Aileen Fay Galos Bongat Dec 2008

Synthesis And Evaluation Of Structural Analogs Of Escherichia Coli Lipid A For Application Towards Cd14-Targeting Glycotherapeutics, Aileen Fay Galos Bongat

Dissertations

Lipid A is a glucosamine-based phospholipid that anchors carbohydrate molecules to the outer membrane of most Gram-negative bacteria. During severe infection, this amphiphilic macromolecule invoke a strong and acute pro-inflammatory response that leads to sepsis and ultimately to septic shock, organ failure and death. Thus, following the convention that the best antidote is often a derivative of the parent agonistic molecule, researchers have actively pursued the idea of creating an analog of Lipid A that can block the cellular receptor for this molecule and thereby arrest the cascade of events that lead to sepsis. Consequently, we became interested in creating …

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The Relationship Between The Maturity Level Of Professional Learning Communities (Plcs) And Student Achievement, Eric Brett Arbetter Dec 2008

The Relationship Between The Maturity Level Of Professional Learning Communities (Plcs) And Student Achievement, Eric Brett Arbetter

Dissertations

The purpose of this study was to determine if a relationship exists between schools' maturity as professional learning communities (PLCs) and student achievement in mathematics and communication arts. Teachers from all 333 public elementary schools in Missouri serving students in kindergarten through fifth grade were invited to participate by completing Hord's School Professional Staff as Learning Community Questionnaire. Each question was directly related to one of Hord's five critical dimensions of PLCs: "...supportive and shared leadership; a shared vision and values; collective learning and application of learning; shared personal practice; and supportive conditions" (Hord, 1997a, p. 6, passim). …

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The Impact Of A Character Education Based Interactive Discipline Program On At-Risk Student Behavior In An Alternative School, Michael G. Hylen Dec 2008

The Impact Of A Character Education Based Interactive Discipline Program On At-Risk Student Behavior In An Alternative School, Michael G. Hylen

Dissertations

Student problem behavior is incompatible with academic achievement and positive interpersonal relationships. It has become necessary for schools to develop codes of conduct to address inappropriate student behavior. But, current school disciplinary policies are ineffective instruments for effecting positive change in student problem behavior (Goodman, 2006). In response to this problem, public school districts are developing a wide variety of approaches to dealing with the needs of problem behavior students. One approach has been the development of alternative high school programs - school district initiatives specifically designed to meet the needs of students lacking success in the traditional high school …

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Annual Report: 2007, N/A N/A Dec 2008

Annual Report: 2007, N/A N/A

Annual Reports

I submit herewith the annual report from the Agricultural and Forestry Experiment Station, School of Natural Resources and Agricultural Sciences, University of Alaska Fairbanks, for the period ending December 31, 2007. This is done in accordance with an act of Congress, approved March 2, 1887, entitled, “An act to establish agricultural experiment stations, in connection with the agricultural college established in the several states under the provisions of an act approved July 2, 1862, and under the acts supplementary thereto,” and also of the act of the Alaska Territorial Legislature, approved March 12, 1935, accepting the provisions of the act …

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Minutes, College Of Education Council Meeting, December 5, 2008, University Of South Florida St. Petersburg. College Of Education. College Council Dec 2008

Minutes, College Of Education Council Meeting, December 5, 2008, University Of South Florida St. Petersburg. College Of Education. College Council

College Council Meeting Minutes

Minutes from the University of South Florida St. Petersburg College of Education's Council meeting on December 5, 2008.

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A Hybrid Marine Protection System As A Model For The Marine Conservation Efforts Of The United States, Jessica D'Ardenne Dec 2008

A Hybrid Marine Protection System As A Model For The Marine Conservation Efforts Of The United States, Jessica D'Ardenne

Colorado Environmental Law Journal

No abstract provided.

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Performance Analysis Of A Light Weight Packet Scanner, Paras Gandhi Dec 2008

Performance Analysis Of A Light Weight Packet Scanner, Paras Gandhi

Theses and Dissertations

The growth of networks around the world has also given rise to threats like viruses and Trojans. This rise in threats has resulted in counter measures for these threats. These counter measures are in the form of applications called firewalls or IDS. The incorporation of these applications in the network results in some delay in communications. The aim of the experiment in this thesis is to measure the delay introduced by such a firewall in the best case and compare it with the communication done on a network without such an application. These experiments are done using a special miniature …

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Faculty Newsnotes 2008 No. 407, Office Of The Provost Dec 2008

Faculty Newsnotes 2008 No. 407, Office Of The Provost

Faculty Newsnotes (1972-2010)

No abstract provided.

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Observation Of The Doubly Strange B Baryon ΩB-, V. M. Abazov, Kenneth A. Bloom, Gregory Snow, D0 Collaboration Dec 2008

Observation Of The Doubly Strange B Baryon ΩB-, V. M. Abazov, Kenneth A. Bloom, Gregory Snow, D0 Collaboration

Kenneth Bloom Publications

We report the observation of the doubly strange b baryon Ωb- in the decay channel Ωb- → J/ψΩ-, with J/ψ → μ+μ- and Ω- → ΛK- → (pπ-)K-, in pp collisions at √s = 1.96 TeV. Using approximately 1.3 fb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider, we observe 17:8 ± 4.9(stat) ± 0.8(syst) Ωb- signal events at a mass of 6.165 ± 0.010(stat) ± 0.013(syst) GeV. The significance of …

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Using Geoscience Education Graduate Students To Help Faculty Transform Teaching Practice, Teagan L. Tomlin Dec 2008

Using Geoscience Education Graduate Students To Help Faculty Transform Teaching Practice, Teagan L. Tomlin

Theses and Dissertations

Universities make claims about student learning that graduates don't often achieve and are under pressure to show improvement in teaching and learning in their undergraduate programs. This has been the constant focus of university-level professional development programs, but most teachers are still not using the most effective teaching methods. Individual departments need to find ways to help their instructors overcome three main challenges associated with adopting more effective student-centered teaching methods. No matter what strategy is adopted, instructors need considerable support to 1) change their beliefs about what constitutes effective teaching and learning, 2) learn to effectively implement new strategies, …

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Wireless Intelligent Structural Health Monitoring System, Belle Ashwin Dec 2008

Wireless Intelligent Structural Health Monitoring System, Belle Ashwin

Theses and Dissertations

Metal structures are susceptible to various types of damages, including corrosion, stress damage, pillowing deformation, cracks etc. These kinds of damages in the metal structures occur mainly due to operational conditions and exposure to the environment. Our research involves a portable integrated wireless sensor system with video camera and ultrasound capabilities which is being developed to investigate corrosion damage on real structures in real time. This system uses images of the metal surfaces, which are captured from an integrated wireless sensor and then quantified and analyzed using computational intelligence. The quantification of the obtained images is done with specialized component …

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Energy Efficient Embedded System Design For Medical Care System Using Wireless Sensor Network, Qi Li Dec 2008

Energy Efficient Embedded System Design For Medical Care System Using Wireless Sensor Network, Qi Li

Theses and Dissertations

Recent surveys on medical service systems show that the cost of patient monitoring has grown significantly. The widespread use of portable digital medical device makes it possible to provide a more comprehensive tracking of patient conditions. However, the development of a full scale, distributed health monitoring system is much delayed due to the lack of efficient wireless communication in a large distributed network. This becomes a challenging research topic which is to find a way to provide accurate and real time patient information to medical experts in a fast, efficient and cost effective fashion. This paper proposes a novel solution …

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Recursive Dispersion Relations In One-Dimensional Periodic Elastic Media, Ani P. Velo, George A. Gazonas, Erwin Bruder, Nancy Rodriguez Dec 2008

Recursive Dispersion Relations In One-Dimensional Periodic Elastic Media, Ani P. Velo, George A. Gazonas, Erwin Bruder, Nancy Rodriguez

Mathematics: Faculty Scholarship

A frequency bandgap is a range of wave frequencies that are prohibited from passing through a medium. The dispersion relation, which links the frequency to the wave number, enables us to illustrate the bandgaps. In [E. H. Lee, “A survey of variational methods for elastic wave propagation analysis in composites with periodic structures,” in Dynamics of Composite Materials, E. H. Lee, ed., ASME, New York, 1972, pp. 122–138] and [E. H. Lee and W. H. Yang, SIAM J. Appl. Math., 25 (1973), pp. 492–499] the dispersion relation was studied theoretically for the one-dimensional periodic structure made of two materials …

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The Evolving Role Of Chemical Engineers In The Pharmaceutical Industry, Tushar Misra Dec 2008

The Evolving Role Of Chemical Engineers In The Pharmaceutical Industry, Tushar Misra

Amgen Seminar Series in Chemical Engineering

Traditionally in the pharmaceutical industry, chemical engineers have been employed in the manufacture of fine chemicals, advanced intermediates and Active Pharmaceutical Ingredients (API). They have also played an important role in the biotechnology industry, where their specialized understanding of fermentation and separation techniques has been utilized effectively. In the last twenty years, they have also had growing opportunities to contribute to the development of drug products. Such industries allow for the application of skills and techniques that a chemical engineer learns: unit operations, reaction kinetics, thermodynamics, mathematical modeling, process development and scale-up, cost analysis, etc. However, with the emergence of …

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Spartan Daily, December 4, 2008, San Jose State University, School Of Journalism And Mass Communications Dec 2008

Spartan Daily, December 4, 2008, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 131, Issue 50

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