Digital Commons Network^™

Neural Identification Of Fuzzy Anomalies In Pressurized Water Systems, Joaquín Izquierdo, R. Pérez, P. A. López, P. L. Iglesias

International Congress on Environmental Modelling and Software

The objective of a Water Supply System (WSS) is to convey treated water to consumers through a pressurized network of pipes. A number of meters and gauges are used to take continuous or periodic measurements that are sent via a telemetry system to the control and operation centre and used to monitor the network. Using this typically limited number of measures together with demand predictions the state of the system must be assessed. Suitable state estimation is of paramount importance in diagnosing leaks and other anomalies in WSS. But this task can be really cumbersome, if not unattainable, for human …

Current Trends In Environmental Modelling With Uncertainty., Jiří Hřebíček, Jan Pesl

International Congress on Environmental Modelling and Software

The important characteristic feature of environmental modelling is the complexity and uncertainty of its mathematical representation (uncertainty of formula). Imprecision of its input data is another characteristic feature, where it is not possible to omit influences of primary monitoring (e.g. gaps of data, errors of measuring facilities, human factor, etc). Many parameters in algorithms and their mathematical formulations are substituted by empirical constants in praxis, although it is well known that their values are very volatile and input data are not validated. Nowadays, information and communication technology (ICT) capabilities are growing rapidly and applied mathematical software (e.g. computer algebra systems, …

Survival Of White Marlin (Tetrapturus Albidus) Released From Commercial Pelagic Longline Gear In The Western North Atlantic, David W. Kerstetter, John E. Graves

Marine & Environmental Sciences Faculty Articles

To estimate postrelease survival of white marlin (Tetrapturus albidus) caught incidentally in regular commercial pelagic longline fishing operations targeting swordfish and tunas, short-duration popup satellite archival tags (PSATs) were deployed on captured animals for periods of 5-43 days. Twenty (71.4%) of 28 tags transmitted data at the preprogrammed time, including one tag that separated from the fish shortly after release and was omitted from subsequent analyses. Transmitted data from 17 of 19 tags were consistent with survival of those animals for the duration of the tag deployment. Postrelease survival estimates ranged from 63.0% (assuming all nontransmitting tags were …

The Role Of Higher Education In America: A Spa Or A Smörgåsbord?, Amany Saleh, Marcia Lamkin, David Cox

Academic Leadership: The Online Journal (2003-2012)

American higher education has a long and rich tradition of seeking higher moral and civic purposes in its endeavors. . . [C]ampuses have been the sites of debate on the critical issues of the day and faculty have sought to provide students with tools for rigorous analysis, critical reflection . . . . Now more than ever, higher education is challenged to educate the leaders of tomorrow and to connect those future leaders with the world of today. (Hollander 1999, v).

Factors That Influence Mathematics Attitudes, Natalie Jenkins

Department of Teaching, Learning, and Teacher Education: Master of Arts in Teaching, Summative Projects

In this action research study conducted within my sixth grade High Ability Learner (HAL) classroom, I investigated the current mathematics attitudes of my students and how these attitudes correlated to personal mathematics achievement and identified intelligence domains. I discovered that most of my nineteen students held a negative attitude toward the subject of mathematics. Consistent low ratings were also found in the logical/mathematical domain of most of my students’ ALPS Multiple Intelligence Profiles. Regardless of this dominant affective data (indicating little mathematics interest or potential from student perspectives) surprisingly, most of my sixth grade HAL students scored above the 90th …

Discourse And Cooperative Learning In The Math Classroom, Karen Hillen

Department of Teaching, Learning, and Teacher Education: Master of Arts in Teaching, Summative Projects

In this action research study of my 6th grade math classroom I investigated the effects of increased student discourse and cooperative learning on the students’ ability to explain and understand math concepts and problem solving, as well as its effects on their use of vocabulary and written explanations. I also investigated how it affected students’ attitudes. I discovered that increased student discourse and cooperative learning resulted in positive changes in students’ attitudes about their ability to explain and understand math, as well as their actual ability to explain and understand math concepts. Evidence in regard to use of vocabulary and …

The Effects Of Self-Assessment On Student Learning, Darla Rae Kelberlau-Berks

Action Research Projects

In this action research study of my 7th and 8th grade mathematics classes, I investigated self-assessment and goal setting. Students set goals at the beginning of the chapter. Students rated themselves at the end of each lesson in several different areas. Those ratings were used to help students know what areas to focus on when preparing for a test. I discovered that students were realistic with their goals. I discovered that the 7th grade Pre-Algebra classes were accurate with their self-ratings and that those ratings helped students with test preparation. I also discovered that students were positive about the experience …

Using Math Vocabulary Building To Increase Problem Solving Abilities In A 5th Grade Classroom, Julane Amen

Action Research Projects

In this action research study of my 5th grade mathematics class, I investigated how students’ understanding of math vocabulary impacts their understanding of the curriculum. I discovered math vocabulary plays an important role in a student’s ability to understand daily lessons, complete homework, discuss ideas in groups, take tests and be successful on achievement tests. A student’s ability to understand the words around him (or her) in math class seem very related to his or her ability to solve word problems. Word problems are what our national assessments are all about. I also discovered that direct instruction and support of …

How To Better Prepare For Assessment And Create A More Technologically Advanced Classroom, Kyle Lannin Poore

Action Research Projects

In this action research study of my classroom of 8th grade mathematics, I investigated how to better prepare these students for quizzes and how technology can be used in the classroom. I discovered that there are many different ways to challenge students and help them prepare for assessments. There are also many ways to use technology in the classroom if one has the opportunities to use some of the tools, such as Power Point and Algebra Tiles. As a result of this research, I plan to increase the scores on state standards while also allowing the students to enjoy technology …

Student Transition To College, Doug Glasshoff

Action Research Projects

In this action research study of recent graduates from my district, I investigated their level of readiness for college-level mathematics courses. I discovered that the students have a wide variety of experiences in college. There are many factors that determine success in college mathematics courses. These factors include size of college, private or public, university or community college. Other factors include students’ choice of major, maturity level, and work ethic. As a result of this research, I plan to raise the individual expectations in my classroom. It is our duty as high school educators to prepare the students for a …

Daily Problem-Solving Warm-Ups: Harboring Mathematical Thinking In The Middle School Classroom, Diana French

Action Research Projects

In this action research study of my classroom of 8th grade mathematics, I investigated the use of daily warm-ups written in problem-solving format. Data was collected to determine if use of such warm-ups would have an effect on students’ abilities to problem solve, their overall attitudes regarding problem solving and whether such an activity could also enhance their readiness each day to learn new mathematics concepts. It was also my hope that this practice would have some positive impact on maximizing the amount of time I have with my students for math instruction. I discovered that daily exposure to problem-solving …

A Relational Database Approach For Frequent Subgraph Mining, Subhesh Kumar Pradhan

Computer Science and Engineering Theses - Archive

Data mining aims at discovering interesting and previously unknown patterns from data sets. Further more, graph-based data mining represents a collection of techniques for mining the relational aspects of data represented as a graph. Complex relationships in data can be represented using graphs and hence graph mining is appropriate for analyzing data that is rich in structural relationships. Database mining of graphs, on the other hand, aims at directly mining graphs stored in a database using SQL queries. Several SQL-based mining algorithms have been developed successfully and their efficiency and scalability have been established. One of them is HDB-Subdue which …

Teacher Leadership In Community Colleges: Transforming Teaching And Organizational Governance, Pamela Miller

Dissertations

The purpose of this study was to describe and interpret the experiences of community college teachers in order to understand their perception of theirleadership role and the impact of teacher leadership on institutional governance and student success. This research addressed gaps in the teacher leadershipliterature by contributing a quantitative analysis of the leadership perceptions of community college faculty. The results of the study should be of interest tocommunity college faculty and administrators, teacher educators and teacher preparation institutions, and policy makers as they work to implement change efforts related to curriculum and instruction, professional development, institutional leadership, and governance.

Chapter …

Wavelet Based Sarima Models For Forecasting Natural Gas Demand, S.M. Aqil Burney, Afzal Saleemi, Syed Akhter Raza

Business Review

Time series analysis has attracted a lot of attention of researchers in recent times due to availability of sophisticated computing facilities. In this paper wavelet transformation and seasonal ARIMA methodology have been used to analyze and forecast time series. First we analyze time series data for gas demand of Sui southern Gas Company (SSGC) of Pakistan and forecast with Box-Jenkins SARIMA models then we look at waveletbased multiresolution analysis (MRA) and SARIMA models predictions using the compressed and de-noised signals. With the right choice of mother wavelets, this method is very successful in analyzing and forecasting time series. In the …

Wooster Magazine: Summer 2006, Karol Crosbie

Wooster Magazine: 2001-2010

This edition of the Wooster Magazine was published in the summer of 2006. Sally Whitman's 13 year journey on completing her bachelors degree is featured on page three. Students will no longer be registering for classes in person, but rather online through the Scotweb system. Twenty student's IS abstracts are featured from page eight to thirteen. English professor, Daniel Bourne is featured along with a few of the poems he has written. Professor Anne Nurse's sociology class, Criminology and Deviance, is highlighted for the fact that half of the class is made up of inmates from the Indian River Juvenile …

Review Of Dripping Dry: Literature, Politics, And Water In The Desert Southwest, By David N. Cassuto, Cory Shaman

Reconstruction: Studies in Contemporary Culture

[First paragraph]

Concentrating primarily on the environmental history of the last 100 years in the American Southwest, David N. Cassuto examines what he suggests is the nexus of political dispute regarding water in the region: the intractable tension between the ideologies of reclamation and restoration. After an initial chapter on John Wesley Powell and the 19th century origins of the hydraulic West, the book proceeds with an exploration of four representative texts in order to demonstrate what Cassuto has identified as the successive stages of the reclamation movement: "At the beginning of the twentieth century, Mary Austin believed in spite …

Monthly Accomplishments For Turnbull National Refuge, July 2006, Turnbull National Wildlife Refuge

Turnbull National Wildlife Refuge Reports

A monthly report of accomplishments at Turnbull National Wildlife Refuge written by Project Leader Nancy Curry.

Selenium Speciation Along A Groundwater Flow Path In The Carrizo Aquifer, Southeastern Texas, Usa, Rituparna Basu

Earth & Environmental Sciences Theses - Archive

Selenium concentration and speciation [Se (VI), Se (IV) and Se (-II)] was determined along a flow path in the Carrizo Sand aquifer (southeastern Texas). Groundwater sampling was carried out in March 2006, from ten wells located along the flow path. The collected samples were filtered through 0.45 µm filters and then acidified to pH <2 using ultra pure HCl. Analysis for Se concentration and speciation was done using selective hydride generation>- Atomic Absorption spectrometry (HG-AAS). Additional in situ measurements from each well included determination of pH, alkalinity, oxidation-reduction potential (Eh in mV), dissolved iron speciation, dissolved sulfide concentrations and dissolved manganese concentrations. Selenium concentrations in groundwaters of the Carrizo Sand aquifer are very low (i.e., nanomolal …

Characterization Of Fracture Systems In Sublette County, Wyoming Using P-Wave And C-Wave 3d Seismic, Keith R. Johnson

Masters Theses

Birefringence of seismic shear waves has proven to be a useful tool for identifying fracture intensity and orientation in the subsurface. Naturally occurring fractures have been shown to contribute to the deliverability of natural gas production in some reservoir formations in Rocky Mountain sedimentary basins. A multicomponent 3D 3C seismic survey acquired on the southeastern end of Pinedale Anticline in Sublette County, Wyoming was mapped to characterize fault systems within the sedimentary section. The tectonic and depositional history in the study area was determined by literature search and by one-dimensional backstripping. Compressional and wrench fault systems were observed and mapped. …

Journeys: Monograph Prepared For The Maine Mathematics And Science Teaching Excellence Collaborative (Mmstec) Project, Richard Stebbins Phd, Amy Johnson

Faculty, Staff, and Alumni Books

A collection of papers describing the impact of the Maine Mathematics and Science Teaching Excellence Collaborative on the improvement of student learning and teaching practices.

The Alumni Network, Summer 2006 (Vol. Xix No. 1), Nova Southeastern University

Alumni Network Newsletter

No abstract provided.

What's Real For Law?, Joseph Vining

Law Quadrangle (formerly Law Quad Notes)

The following essay is adapted from a paper the author presented this March, at a Lilley Foundation conference at Notre Dame Law School, and a lecture given last October, at a symposium at the Center for Law, Philosophy, and Culture, Catholic University Law School. The October symposium and March conference explored issues and questions raised by University of San Diego Law Professor Steven D. Smith's Law Quandary (Harvard University Press, 2004). The complete lecture, together with lectures responding to the book given by Professor Patrick McKinley Brennan, Justice Antonin Scalia, and Professor Lloyd Weinreb, and a further presentation by Professor …

Production And Inventory Management Under Multiple Resource Constraints, Kurt M. Bretthauer, Bala Shetty, Siddhartha Syam, Robert J. Vokurka

Management Faculty Research and Publications

In this paper we present a model and solution methodology for production and inventory management problems that involve multiple resource constraints. The model formulation is quite general, allowing organizations to handle a variety of multi-item decisions such as determining order quantities, production batch sizes, number of production runs, or cycle times. Resource constraints become necessary to handle interaction among the multiple items. Common types of resource constraints include limits on raw materials, machine capacity, workforce capacity, inventory investment, storage space, or the total number of orders placed. For example, in a production environment, there may be limited workforce capacity and …

Theoretical Analysis Of Transpiration Cooling Of A Liquid Rocket Thrust Chamber Wall, Philip A. Davis

Master's Theses - Daytona Beach

Transpiration cooling is a process that could reduce the overall weight of the cooling system of an actively cooled thrust chamber wall of a liquid rocket engine by up to 50% when compared to other active cooling techniques, increasing the thrust to weight ratio of the rocket engine. In this thesis, mathematical models and computer codes were developed for simulating the flow of a coolant and the transport phenomena in a transpiration cooled thrust chamber wall of a liquid rocket engine by treating the coolant in two ways: as an incompressible fluid and as a compressible fluid in local thermal …

Sunrise… Sunset…, Alex Friedlander, Tzippora Resnick

The Mathematics Enthusiast

Sunrise and sunset are obviously a part of our everyday life. Our connection to the movement of celestial bodies, including the Sun, has been somewhat diminished by modern life, in contrast to the practical interest, fascination or even awe of earlier civilizations. Mathematics and astronomy have a long history of cooperative work, but due to their complexity and technical difficulty, usually those who participated in this endeavor were at the advanced studies level, or occupied high religious positions.

Who Is Eligible Under The Individuals With Disabilities Education Improvement Act, Robert A. Garda Jr.

The Journal of Law and Education

No abstract provided.

Radiative Recombination And Ultralong Exciton Photoluminescence Lifetime In Gan Freestanding Film Via Two-Photon Excitation, Yongchun Zhong, Kam Sing Wong, Weili Zhang, David C. Look

Physics Faculty Publications

We have measured the photoluminescence (PL) lifetime of a freestanding GaN film using one-photon and two-photon excitations to demonstrate the dramatic difference in exciton recombination dynamics at the surface and in the bulk. An ultralong exciton PL lifetime of 17.2 ns at 295 K is observed from a GaN freestanding film using two-photon excitation, whereas less than 100 ps lifetime is observed for one-photon excitation, suggesting that nonradiative processes from surface defects account for the short PL lifetime measured. A monotonic increase in two-photon excited PL lifetime with increasing temperature and the linear dependence of the exciton lifetime with emission …

The Extension Newsletter, Issue 51, Summer Quarter 2006, Wright State University Retirees Association

The Extension Newsletter

An eight page newsletter from the Wright State University's Retirees Association.

Effective Teaching Practices For Students With And Without Learning Difficulties: Constructivism As A Legitimate Theory Of Learning And Of Teaching?, Ken Rowe

Student learning processes

Much of what is commonly claimed as ‘effective teaching practice’ and implemented during the early and middle years of schooling in Australian schools, for either mainstream students or for those experiencing learning difficulties, is not grounded in findings from evidencebased research. Of particular concern is that despite a lack of supporting evidence for its utility, the prevailing educational philosophy of constructivism (a theory of self-directed learning rather than a theory of teaching) continues to have marked influences on shaping teachers’ interpretations of how they should teach – aided and abetted by the content emphasis given during pre-service teacher education, as …

Iowa Academy Of Science: The New Bulletin, V02n3, Summer 2006, Iowa Academy Of Science

New Bulletin

Inside This Issue:

--Message from the Executive Director

--InnoCentive

--Saylorville 2006 Weather Talk

--Jane Haugen receives Gold Star

--GLOBE ONE Posters go to Thailand

--Education and the Environment

--Upcoming Programs