Digital Commons Network^™

Ada News - 12/16/2002, American Dental Association, Publishing Division

ADA News

Established in 1970 as the official newspaper of the American Dental Association, the ADA News serves practicing dentists and others allied to the dental profession in the U.S. and internationally. It is the No. 1 source of news and information about the many benefits and services the ADA delivers to members daily as well as timely information on scientific, social, political and economic developments affecting dentistry and health care.

December 16, 2002 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Computer Simulations And Neutron Reflectivity Of Proteins At Interfaces, Amol A. Mungikar, Daniel Forciniti

Chemical and Biochemical Engineering Faculty Research & Creative Works

Computer simulations in conjunction with neutron reflectivity is an excellent combination for the study of biological materials at solid-liquid interfaces: Both techniques have excellent resolution levels (Ångströms) and they are mature. A stronger interaction between physicists and biologists will allow the use of these two approaches in topics of biological-biomedical interest.

Here Lies The Book, R.I.P.: The Report Of Its Death Has Been Greatly Exaggerated, Mark Y. Herring

Dacus Library Faculty Publications

The declaration that print books are dead may have been premature.

Commencement Convocation Program, St. Petersburg Campus, December 15, 2002, University Of South Florida St. Petersburg

USF St. Petersburg Graduations and Commencements

Honorary Degree: Lee Benjamin

153rd Commencement, Winter

Commencement Programs

No abstract provided.

Fast Convergence Control Approach For High Dimensional Chaotic Systems, Hsun-Heng Tsai, Chyun-Chau Fuh, Pi-Cheng Tung

Journal of Marine Science and Technology–Taiwan

A simple and efficient method for controlling high dimensional discrete-time chaotic systems is proposed in this paper. This method is implemented similar to the OGY method, and is feasible for practical experiments. The key component is to assign the eigenvalues of a linearized map by using the well-known pole placement technique. According to the Cayley-Hamilton theorem, the trajectory will converge to the desired fixed point after n iterations at most (n is the dimension of the map), if the real trajectory of the chaotic system falls within the neighborhood of the desired fixed point. The proposed approach improves the convergence …

The Influence Of Energy Grouping And Undulation On Sediment Suspension In The Surf Zone, Po-Ching Lin, Hsien-Ter Chou, Jea-Tzyy Juang

Journal of Marine Science and Technology–Taiwan

A field experiment was conducted to investigate the effects of the wave energy grouping and undulating on the sediment suspension in the surf zone at Taichung, Taiwan, in 1995. Instruments were deployed in line with the wave front, including one acoustic current meter, one pressure sensor, and four optical turbidity monitors were arranged in line and perpendicular to the bed. During the experiments the water depth was varied from 0.7 m to 3.6 m due to the tide level variations. The instruments were fixed to the ground to have data collected throughout the surf zone while the relative position of …

Application Of The Force Control On The Working Path Tacking, Sun-Run Wang, Zhi-Zhong Qiao, Pi-Cheng Tung

Journal of Marine Science and Technology–Taiwan

For the application of tracking the path on workpieces, the CCD (Charge Couple Device) identificating system is generally used as one of the popular resolutions. However, the implementation of CCD identificating system is complex and environmental-limited. This study presents a compliant motion controller by using the end-effector installed with a force sensor. This results the smoothly path tracking on a workpiece. By applying the algorithm of Fuzzy into this compliant motion, the compliant control is improved and the path on the workpiece is found more quickly and accurately. A radius compensating method is used to correct the measured data. The …

Atmospheric Transmittance Of Amsu Channels: A Fast Computation Model, Tsung-Hua Kuo, Gin-Rong Liu, Chen-Gen Huang, Tang-Huang Lin, Chung-Chih Liu

Journal of Marine Science and Technology–Taiwan

In this study, the atmospheric transmittance of individual NOAA AMSU microwave channels was computed into a 40-layer atmospheric line-by-line FASCODE radiation model. Long-term sounding data from 1956 to 1991 collected over the Taiwan area was used to construct a 40-layer standard atmospheric model for the island. The simulated transmittance was also used to establish a regression-based fast-algorithm model to compute the atmospheric transmittance of Taiwan and its surrounding areas for various purposes. Despite the fact that the lower atmospheric layers of channels 14-18 indicated larger errors, the overall results revealed that the absolute value difference between the AMSU pass band-averaged …

A Reversible Three-Phase Step Up/Down Switching Mode Rectifier, Jenn-Jong Shieh

Journal of Marine Science and Technology–Taiwan

In this paper, focus on the null space vector duty cycle control, a reversible three-phase step up/down switching mode rectifier is proposed attain clean sinusoidal input current, unity power factor, bidirectional power flow, step up/down output DC voltage and insensitivity for a voltage input. In addition, a precise simulation model is proposed to simulation by using PC software tools. Finally, some simulation and experimental results are presented for verification.

Mathematical Modeling And Prediction Method Of Concrete Carbonation And Its Applications, Ming Te Liang, Wenjun Qu, Chih-Hsin Liang

Journal of Marine Science and Technology–Taiwan

The carbonation process of concrete is principally a diffusion phenomenon. The penetration rate of carbon dioxide depends mainly on the concrete quality and the exposure condition. Based on both Fick’s first and second laws of linear diffusion equations, the threedimensional equation of conservation of mass is expressed. This equation can be reduced to two- and one- dimensional equations of conservation of mass which can predict the carbonation depth beneath corners and the general surface of concrete structures, respectively. The objectives of this investigation are to measure the depth of carbonation from the free surface of a concrete member and to …

On The Permeability Inside The Granular Media, Chen-Yuan Chen, Chung-Pan Lee, Cheng-Wu Chen

Journal of Marine Science and Technology–Taiwan

The permeability and resistance characteristics in porous structures with different grain size and shape have been studied experimentally in the paper. Two materials used in the study are crushed gravels and spherical glass balls with four sizes of 5.2 mm, 7. 4 mm, 12.2 mm, and 31.7 mm for gravels and 13.0 mm, 16.0 mm, 25. 0 mm, and 35.0 mm for balls, respectively. The permeability determined from linear Darcy Law shows a strong dependence on flow velocity in addition to grain sizes and shapes. This is not consistent to the traditional definition of permeability that is only a function …

Monitoring Of Sandstorms With Rocsat-1 Oci Data, Shih-Jen Huang, Gin-Rong Liu, Tsung-Hua Kuo, Tang-Huang Lin, Chih-Kang Liang

Journal of Marine Science and Technology–Taiwan

The Ocean Color Imager (OCI) onboard the ROCSAT-1 Satellite was employed to demonstrate its capability in monitoring sandstorm events around Mongolia and northwestern China where they have been occurring in great frequency over these past few years. The OCI measures the radiance from the visible to near infrared regions in six spectral channels. The radiance can be used to calculate the aerosol optical depth (AOD) of the atmosphere through an atmospheric correction algorithm. The variation in the AOD during January and February of 2001 is investigated in this study. A set of OCI images covering the Yellow Sea was selected …

Experimental Nonlinear Modeling Of A Rotating Machine With An Oil Film Bearing, Chiou-Fong Chung, Pi-Cheng Tung, Chiang-Nan Chang

Journal of Marine Science and Technology–Taiwan

In this study the system identification method is applied to obtain a nonlinear equation for an oil film rotating system. The centrifugal force induced by an unbalanced mass is used as the input signal for identification, and the phase between the input signal and the measured output vibration amplitude is calculated to perform the identification. Stability analysis and system performance are evaluated by using the root locus and the Floquet-Liapunov theorem. Based on the model, the oil whirl of the journal bearing can be predicted. A comparison between the simulation results and some experimented data shows the feasibility of the …

Real-Time Streaming Over An Ieee 802.11 B Based Wireless Lan Test Bed, Chaouki T. Abdallah, Sunil Raghavan, Ramiro Jardin, Hemy N. Jerez

Electrical & Computer Engineering Faculty Publications

Wireless LAN systems based on IEEE 802.11 (see http://grouper.ieee.org/groups/802/11) have become a path-breaking innovation and have revolutionized the home, educational and office network markets (Kapp, S., IEEE Internet Computing, vol.6, no.1, p.82-5, 2002). We attempt to analyze real-time video streaming issues over a wireless LAN test bed based on such a mature technology. The creation of this test bed is an ongoing effort at the Electrical Engineering & Computer Engineering (EECE) Department at the University of New Mexico, Albuquerque, New Mexico, serving to promote future research and development, under the aegis of Ibero American Science and Technology Education Consortium (ISTEC) …

Riding The Active Learning Wave: Using Problem-Based Learning As A Catalyst For Creating Faculty-Librarian Partnerships, Michael Fosmire, Alexius Macklin

Libraries Research Publications

With higher education shifting its emphasis from teaching to learning and inputs to outcomes, active learning techniques are gaining prominence. Research has shown that students learn better when they actively engage the course content, rather than passively absorb lecture material. However, many faculty are unsure of how to take advantage of these new techniques to improve the learning outcomes for their students. For one active learning technique, problem-based learning, librarians are well positioned to facilitate its adoption into course curriculum. In order to effect a high-quality problem-based learning experience, a true collaboration of efforts needs to take place between the …

South Dakota State University Graduation Exercises, December 14, 2002, Brookings, South Dakota, South Dakota State University

Commencement Programs

Please be advised that the names listed in the program do not constitute official confirmation of meeting the graduation requirements. The 2002 Graduation Exercises at South Dakota State University will commence with an introduction by University President Peggy Gordon Miller. Serving as honorary marshals for the occasion are Lowell Amiotte, Associate Professor Emeritus of Education and Counseling and Coordinator of American Indian Activities, along with Dr. Mary Ellen Aamot, Professor Emerita of Cooperative Extension Service. Delivering the graduation address titled "Remember the Future" will be Dr. Allen Branum, Professor Emeritus of Psychology and Acting Director of Diversity Enhancement. Dr. Carol …

12/14/2002 Obituary Records, Hawaii Obituaries

Obituaries

List of Obituaries for individuals who passed away on 12/14/2002. Scroll down to see the names and obituary description.

December 14, 2002 (Pages 6063-6236), Pennsylvania Legislative Reference Bureau

Volume 32 (2002)

No abstract provided.

Fall Commencement Program, December 14, 2002, Coastal Carolina University

Commencement Programs

Program of Commencement Exercises at Coastal Carolina University.

Ua45/6 Commencement Program, Wku Registrar

WKU Administration Documents

Commencement program listing graduates.

Determining Standards For Sources Of Free Information On The Internet For Inclusion In Academic Library Holdings By 2010., Doug D. Cross

Electronic Theses and Dissertations

The purpose of this study was to develop a consensus from a panel of experts composed of library deans/directors, reference librarians, and instructors with online teaching experience. The panel developed the methodology necessary for evaluating free sources of information on the Internet for inclusion in academic library holdings by the year 2010. The following areas were explored as they related to the forecast: 1) The changes in higher education institutions that will be necessary to prepare students to deal with free sources of information on the Internet; 2) The procedures that librarians need to develop and implement to ensure that …

Commencement Convocation Exercises - December 2002, Prairie View A&M University

Commencement and Convocation Exercises

No abstract provided.

2002-12-14 Minutes And Appendicies, Longwood University

Board of Visitors Meeting Minutes 1964-

No abstract provided.

Depth-Varying Constitutive Properties Observed In An Isothermal Glacier, H. P. Marshall, Joel T. Harper, W. Tad Pfeffer, Neil Humphrey

Geosciences Faculty Publications

Detailed three-dimensional in-situ measurements of deformation at depth are used to examine the rheology of a 6 x 10⁶ m³ block of temperate glacier ice. Assuming that the viscosity of this ice is primarily dependent on stress, the relationship between inferred stress and measurements of strain-rate above about 115 m depth suggest a constitutive relationship with a stress exponent n about 1. Deformation below 115 m is described by a non-linear flow law with a power exponent of approximately 3-4. A sharp transition between the two flow regimes is likely caused by a change in the dominant mechanism …

Activation Of Ca2+-Activated K+ Channels And Cell Migration By Hepatocyte Growth Factor/Scatter Factor In Madin-Darby Canine Kidney Cells., Min Jin

Electronic Theses and Dissertations

Hepatocyte Growth Factor/Scatter Factor (HGF/SF) stimulates migration of various cells and has been linked via Met tyrosine kinase signaling to transformation and the metastatic phenotype. HGF/SF-Met signaling also plays a role in malignancy. Migration of transformed MDCK-F cells depends on activation of a charybdotoxin (ChTX)-sensitive, volume-activated membrane K⁺ current. Patch-clamp electrophysiology and transwell migration assays were used to study the effects of HGF/SF on membrane K⁺ currents and cell migration in MDCK II cells. HGF/SF activated membrane K⁺ currents that increased over 24 hr, and these could be modulated by altering intracellular free calcium concentration [Ca^{2+ …}

Folk Medicine In Southern Appalachian Fiction., Catherine Benson Strain

Electronic Theses and Dissertations

The region of Southern Appalachia, long known for its colorful storytellers, is also rich in folk medical lore and practice. In their Appalachian novels, Lucy Furman, Emma Bell Miles, Mildred Haun, Catherine Marshall, Harriette Arnow, Lee Smith, and Charles Frazier, feature folk medicine prominently in their narratives. The novels studied, set against the backdrop of the rise of official medicine, are divided into three major time periods that correspond to important chapters in the history of American medicine: the 1890s through the 1930s; the 1940s through the 1960s; and the 1970s through the present. The study of folk medicine, a …

The Murray Ledger And Times, December 14, 2002, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Perceived Barriers To The National Board For Professional Teaching Standards Certification., Jan Woodard Moore

Electronic Theses and Dissertations

Since its conception in 1987, much money and effort have been expended establishing the National Board for Professional Teaching Standards. Although 16,038 educators in 45 states and the District of Columbia have obtained National Board Certification, there are over 1,200 teachers in the East Tennessee counties of Cocke and Sevier who are eligible for National Board Certification, but have not obtained this certification. This study sought to identify the barriers that discouraged this population from attempting to gain National Board Certification.

The research design was inferential and utilized data from a survey instrument constructed by the researcher. A pilot test …