Digital Commons Network^™

A Comparative Verification Of Forecasts From Two Operational Solar Wind Models, Donald C. Norquist, Warner C. Meeks

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The solar wind (SW) and interplanetary magnetic field (IMF) have a significant influence on the near‐Earth space environment. In this study we evaluate and compare forecasts from two models that predict SW and IMF conditions: the Hakamada‐Akasofu‐Fry (HAF) version 2, operational at the Air Force Weather Agency, and Wang‐Sheeley‐Arge (WSA) version 1.6, executed routinely at the Space Weather Prediction Center. SW speed (V_sw) and IMF polarity (Bpol) forecasts at L1 were compared with Wind and Advanced Composition Explorer satellite observations. Verification statistics were computed by study year and forecast day. Results revealed that both models’ mean Vsw are …

Large Scale Application Of Vibration Sensors For Fan Monitoring At Commercial Layer Hen Houses, Ji-Qin Ni, Yan Chen, Claude A. Diehl, Albert J. Heber, Bill W. Bogan, Li-Long Chai

School of Agricultural & Biological Engineering Faculty Publications

Continuously monitoring the operation of each individual fan can significantly improve the measurement quality of aerial pollutant emissions from animal buildings that have a large number of fans. To monitor the fan operation by detecting the fan vibration is a relatively new technique. A low-cost electronic vibration sensor was developed and commercialized. However, its large scale application has not yet been evaluated. This paper presents long-term performance results of this vibration sensor at two large commercial layer houses. Vibration sensors were installed on 164 fans of 130 cm diameter to continuously monitor the fan on/off status for two years. The …

Florida Sentinel Bulletin, December 16, 2010, Gwen Hayes

Florida Sentinel Bulletin Collection

The December 16, 2010, issue of the Florida Sentinel Bulletin.

Summary Of Pyramid Lake Paiute Tribe V. State Engineer, 126 Nev. Adv. Op. No. 48, Sean W. Mcdonald

Nevada Supreme Court Summaries

No abstract provided.

Women In China, Between Confucius And The Market, Tonia Warnecke, Alain Blanchard

Faculty Publications

No abstract provided.

La Metà Del Cielo Tra Confucio E Mercato, Tonia Warnecke, Alain Blanchard

Faculty Publications

No abstract provided.

An Evaluation Of Multiple Choice Test Questions Deliberately Designed To Include Multiple Correct Answers, Kim Scott Thayn

Theses and Dissertations

The multiple-choice test question is a popular item format used for tests ranging from classroom assessments to professional licensure exams. The popularity of this format stems from its administration and scoring efficiencies. The most common multiple-choice format consists of a stem that presents a problem to be solved accompanied by a single correct answer and two, three, or four incorrect answers. A well-constructed item using this format can result in a high quality assessment of an examinee's knowledge, skills and abilities. However, for some complex, higher-order knowledge, skills and abilities, a single correct answer is often insufficient. Test developers tend …

Summary Of Moon V. Mcdonald, Carano & Wilson, Llp, 129 Nev. Adv. Op. 56, David Rothenburg

Nevada Supreme Court Summaries

No abstract provided.

Christian Realism And Augustinian (?) Liberalism, Peter Iver Kaufman

Jepson School of Leadership Studies articles, book chapters and other publications

Surely there is enough kindling lying about in the Bible and in subsequent moral theology to fire up love for neighbors and compassion for countless “friends” in foreign parts--and in crisis. And, surely, the momentum of love’s labor for the just redistribution of resources, fueled by activists’ appeals for solidarity, should be sustained by stressing that we are creatures made for affection, not for aggression. Yet experience, plus the history of the Christian traditions, taught Reinhold Niebuhr, who memorably reminded Christian realists, how often love was “defeated,” how a “strategy of brotherhood . . . degenerates from mutuality to a …

Perspectives On Choral And Solo Singing: Enhancingcommunication Between Choral Conductors And Voice Teachers, Matthew August Ferrell

Open Access Dissertations

Concepts of choral and solo singing diverge among the masses of pedagogues, teachers, and conductors who have differing opinions about healthy vocal technique and training. These differences have generated tension within some university music programs, with choral faculty and voice faculty sometimes on opposing sides. This document presents answers from professional singers who engage in choral and solo singing while maintaining a healthy vocal technique. All subjects interviewed for this document were asked to speak in detail to vocal adjustments made to sing in different styles. In addition, they were asked to identify any vocal faults that may arise from …

Dynamical Grouping In Complex Systems, Zhenyuan Zhao

Open Access Dissertations

Quantifying the behavior of complex systems arguably presents the common ¡°hard¡±problem across the physical, biological, social, economic sciences. Individual-based or agent-based models have proved useful in a variety of different real world systems: from the physical, biological, medical domains through to social and even financial domains. There are many different models in each of these fields, each with their own particular assumptions, strengths and weaknesses for particular application areas. However, there is a lack of minimal model analysis in which both numerical and analytic results can be obtained, and hence allowing different application domains to be analyzed on a common …

Sustainable Composite Systems For Infrastructure Rehabilitation, Francisco J. De Caso Y Basalo

Open Access Dissertations

The development of composite materials by combining two or more constituents with improved mechanical properties, when compared to either of the constituents alone, has existed since biblical times when straw or horse hair was mixed with clay or mud to produce bricks. During the second half of the twentieth century, modern composites known as fiber reinforced polymers (FRP) - consisting of a reinforcing phase (fibers) embedded into a matrix (polymeric resin or binder) - were developed to meet the performance challenges of space exploration and air travel. With time, externally-bonded FRP applications for strengthening of reinforced concrete (RC) structures gained …

Intrinsic And Extrinsic Factors For The Regeneration Of Brainstem Axons After Spinal Cord Injury, Ryan R. Williams

Open Access Dissertations

After traumatic injury, the successful regeneration of axons in the mammalian central nervous system (CNS) that leads to functional recovery will require a combination of therapeutic strategies. Following complete transection of the thoracic spinal cord, previous studies found the implantation of a bridge containing Schwann cells (SCs) and Matrigel promotes intraspinal but not supraspinal axon regeneration. Therefore, work in this dissertation sought to elucidate both intrinsic and extrinsic factors that enhance the regeneration of brainstem axons in a SC bridge. Adeno-associated viral (AAV) vector-mediated expression of green fluorescent protein (GFP) was utilized as a novel method for anterogradely tracing the …

Development Of A Methodology To Attain High Levels Of Storage Proteins In Cassava Tuberized Roots And Its Implications, Mohammad Abhary

Dissertations

Cassava (Manihot esculenta Crantz.) is a member of the Euphorbiaceae family, cultivated in the tropics and subtropical areas as a staple food crop for more than 700 million people around the world. The starchy storage roots of cassava are rich in calories and deficient in all other nutrients, cassava meals has the lowest of all sources of dietary protein. Severe protein deficiencies and malnutrition problems are common among those who rely on cassava as their daily meal. Although cassava is ranked the fifth most important crop in the world, the research on this crop is very limited. Among the limited …

Can Open Access Save Us?, Mark Y. Herring

Dacus Library Faculty Publications

Just about every time I open a journal or read a blog online, I see something about e-books saving newspapers and magazines. Both magazines and newspapers–and really all scholalry communication–are going the way of all flesh, we’re told, but e-book reading may provide a stay of execution, however short that may be. It got me to thinking if there might be something else that would provide a similarDies Irae proroguement for scholarly communication in general. That’s when it occurred to me it could well be open access (OA), or at least as I envision it here.

Evaluation Real-Time Data Warehousing Challenges From A Theoretical And Practical Perspective, Dale Hargens

Regis University Student Publications (comprehensive collection)

The concept of real-time data warehousing has grown in popularity in recent years as organizations demand access to critical pieces of data in real-time to produce analytics and make business decisions to gain competitive advantage. Real-time data warehousing systems differ substantially from traditional data warehousing systems, thus, presenting a unique set of organizational and operational challenges. The basis for the research was to investigate whether adequate information is available regarding the organizational and operational challenges of real-time data warehousing and whether that information is available to the database community. This exploration was done by gathering primary research, conducting a case …

12/15/2010 - Eberly Chosen As Luis Clay Mendez Distinguished Service Award Recipient.Pdf, University Marketing And Communications

2010

No abstract provided.

Faculty And Student Expectations And Perceptions Of E-Mail Communication In A Campus And Distance Doctor Of Pharmacy Program, Pamela A. Foral, Paul D. Turner, Michael S. Monaghan, Ryan W. Walters, Jennifer J. Merkel, Jeremy Harris Lipschultz, Thomas J. Lenz

Communication Faculty Publications

Objective. To examine faculty members’ and students’ expectations and perceptions of e-mail communication in a dual pathway pharmacy program. Methods. Three parallel survey instruments were administered to campus students, distance students, and faculty members, respectively. Focus groups with students and faculty were conducted. Results. Faculty members perceived themselves as more accessible and approachable by e-mail than either group of students did. Campus students expected a shorter faculty response time to e-mail and for faculty members to be more available than did distance students. Conclusion. E-mail is an effective means of computer-mediated communication between faculty members and students and can be …

Tri-State District Railroads: Connection And Endurance, Brecken Larson

Theory and Practice: HIST430

The purpose of the railroad is to connect-people to places, commodity to consumer, all the while building a network of relationships. In the Tri-State Mining District, the area railroads served the local mining industry by hauling the ore concentrate to the purchasing smelter. Both industries worked to support the Tri-State area, despite governmental intervention and economic downturns Throughout the early to min-1900s, Tri-State District railroads connected to the mining industry, endured the government, and steamed into the future.

Ua4/2 Academic Budgets & Administration - Correspondence/Subject File, Wku Archives

WKU Archives Collection Inventories

Correspondence and subject files created by the office of Academic Budgets & Administration and its reporting offices:

• Academic Budgets
• Manager of Academic Resources
• PIE Grants Coordinator

Minutes, Crummer Graduate School Of Business Faculty Meeting, Wednesday, December 15, 2010, Crummer Graduate School Of Business Faculty

Crummer Graduate School of Business Minutes and Reports

No abstract provided.

Perceptions Of Effective Instruction In Community Colleges: A Student View, Stephen Kent Biermann

Dissertations

ABSTRACT Stephen K. Biermann PERCEPTIONS OF EFFECTIVE INSTRUCTION IN COMMUNITY COLLEGES: A STUDENT VIEW This qualitative study was designed to identify key elements of effective instruction as perceived by community college students. Since the majority of research pertaining to effective instruction has been primarily conducted using a quantitative format, it is important to consider other methodologies for future research. The use of qualitative research helped capture student dialogue in its fullest, unhindered by the constraints of a survey tool or scale. The students involved in the study voluntarily participated in either individual interviews or focus groups and commented upon various …

Universality Of Non-Ohmic Shunt Leakage In Thin-Film Solar Cells, Sourabh Dongaonkar, J. D. Servaites, G. M. Ford, S. Loser, R. M. Gelfand, H. Mohseni, Hugh Hillhouse, R. Agrawal, M. A. Ratner, T. J. Marks, Mark S. Lundstrom, Muhammad A. Alam

Other Nanotechnology Publications

We compare the dark current-voltage (IV) characteristics of three different thin-film solar cell types: hydrogenated amorphous silicon (a-Si:H) p-i-n cells, organic bulk heterojunction (BHJ) cells, and Cu(In, Ga)Se-2 (CIGS) cells. All three device types exhibit a significant shunt leakage current at low forward bias (V < similar to 0.4) and reverse bias, which cannot be explained by the classical solar cell diode model. This parasitic shunt current exhibits non-Ohmic behavior, as opposed to the traditional constant shunt resistance model for photovoltaics. We show here that this shunt leakage (I-sh), across all three solar cell types considered, is characterized by the following common phenomenological features: (a) voltage symmetry about V = 0, (b) nonlinear (power law) voltage dependence, and (c) extremely weak temperature dependence. Based on this analysis, we provide a simple method of subtracting this shunt current component from the measured data and discuss its implications on dark IV parameter extraction. We propose a space charge limited (SCL) current model for capturing all these features of the shunt leakage in a consistent framework and discuss possible physical origin of the parasitic paths responsible for this shunt current mechanism. (C) 2010 American Institute of Physics. [doi:10.1063/1.3518509]

The Role Of Discriminatory Experiences On Hispanic Students’ College Choice Decisions, Amanda Taggart, Gloria Crisp

Teacher Education and Leadership Faculty Publications

This study examined the impact of discriminatory experiences on Hispanic students’ decisions concerning postsecondary enrollment. Logistic regression was used to identify variables associated with Hispanic students’ decisions to attend either a 2- or a 4-year institution within the context of theory concerning college choice/success. Data were drawn from a nationally representative sample ( n = 2,210) of Hispanic students from the ELS:2002 data set. Results indicated that Hispanic students were less likely to attend a 4-year institution if they personally experienced or perceived others being discriminated against during high school. Findings suggest that discriminatory high school experiences may contribute to …

Sidescan Sonar Image Processing:Correcting Brightness Variation And Patching Gaps, Yet-Chung Chang, Shu-Kun Hsu, Ching-Hui Tsai

Journal of Marine Science and Technology–Taiwan

Sidescan sonar data are typically presented as gray level images. However, sidescan images often show striking variations in brightness. These variations, caused by the sonar beam pattern and the constantly changing attitude of the towfish, make the images difficult to read as pictures of the seabed. This reduces the utility of the images for marine geologists. In this paper, the effects of the sonar beam pattern across the swath are corrected using a normalization process based on the average signal intensity for each grazing angle. Noise along the track, which is generally caused by changes in the attitude of the …

The Sensitivity Analysis Of A Mems Microphone With Different Membrane Diameters, Cheng-Ta Yang

Journal of Marine Science and Technology–Taiwan

In MEMS capacitive microphone design, it is very critical to get highest yielding rate and sensitivity as the two major factors dominate structure design of microphone. The centralpost MEMS microphone is introduced in this paper to differentiate from traditional fixed membrane boundary microphone since the construction is simple and only few masks are required in the process so that the yielding can be greatly enhanced. Thus, it is necessary to find the relationship between the sensitivity and dimension of the diameter of the membrane. The main research steps described in this paper include using CoventorWarer to develop one analysis model …

The Application Of E-Technology For Marine Information Service, Lien-Kwei Chien, Tsung-Shen Feng, Chieh-Cheng Yen, Beng-Chun Lee, Heng-Wen Chang

Journal of Marine Science and Technology–Taiwan

The purpose of this study is to establish the multi-function querying system by applying e-technology in marine data. Subjects tendency technology is new concept in system designing process of this study which originate from simulation language that was replace the structural technology. We also investigate the statistical characteristics of ocean waves and surges over Taiwan waters by cluster and return period analysis. Marine drifter track analysis and search area determination system were also analysis and import to GIS querying system. In order to make the locations of the near shore ships and sailing data could be easily convey through wireless …

Stability Assessment For The Undersea Gas Pipeline, Wen-Chien Tseng, Lien-Kwei Chien, Sheng-Tse Chuang, Pei-Chi Tsai, Ya-Ting Hsu, Ting-Ting Lu, Chu-Kuan Lin

Journal of Marine Science and Technology–Taiwan

In general, the activities of harbour district, coastal construction and re-transportation of tide and current are all possible to influence the stability of research area and sediment environment in nearshore area. It indicates that status of deposit property of seabed and variability of sediment environment are important factors to stability and safety for the path of undersea gas pipeline. An assessment procedure and approach for the prediction of the wave-induced and earthquake-induced liquefaction potential and erosion potential are proposed for marine engineering practice. The soil sample of this study is obtained from deposit zone of gas pipeline of seabed in …

A New Calibration Method For Low Cost Mems Inertial Sensor Module, Sheng-Chih Shen, Chia-Jung Chen, Hsin-Jung Huang

Journal of Marine Science and Technology–Taiwan

This paper presents a new calibration method to overcome the challenges of MEMS inertial sensors for underwater navigation. The MEMS inertial sensor module is composed of an accelerometer, a gyroscope and a circuit of signal process. For navigation estimation, it is easy to be influenced by errors which come from MEMS inertial sensors. In general, the sources of error can be categorized into two groups, deterministic type and stochastic type. The former primarily includes bias errors, misalignment and nonlinearity; the latter contains temperature effect and signal drifting. Subsequently, the linearity calibration is used to modify the deterministic error and the …

The Performance Of Indium Tin Oxide Films Deposited On Plastic Substrate Applied For Solar-Cell Buoy, Chien-Kun Wang, Jyh-Jier Ho, Sung-Jen Nien, Yuang-Tung Cheng, William Lee, Chih-Chiang Lu, Bao-Shun Yau, Hsing-Wang Tsai, Chung-Cheng Chang

Journal of Marine Science and Technology–Taiwan

In this paper, we report the indium tin oxide (ITO) films deposited on the polyethyene terephthalate (PET) substrate, which surface is treated with detergent solution. The ITO films are deposited on room temperature by direct current (DC) magnetron sputtering from a ceramic target of a 90% In-10% Sn alloy. The deposited opto-electric ITO films on PET with detergent treatment are 83.4% average visible transparency, and 5.8 × 10-4 Ω-cm resistivity, respectively. And then, we use the spin coating to form the polymer solar cell. Under optimal conditions of surface treatment and film deposition, the experimental result shows 2.12% of the …