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2010

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Signal Subspace Transformation For Direction-Of-Arrival Estimation Of Wideband Sources In Near Field, Lena Chang Dec 2010

Signal Subspace Transformation For Direction-Of-Arrival Estimation Of Wideband Sources In Near Field, Lena Chang

Journal of Marine Science and Technology–Taiwan

A novel adaptive signal subspace transformation for direction-of-arrival (DOA) estimation of wideband sources in the near-field is proposed in this paper. The method is composed of two transformations: signal subspace focusing (SSF) and far-field transformation (FFT). SSF aligns the signal subspaces for different frequencies in the bandwidth of the sources based on focusing matrices. FFT transforms the near-field steering vector to be the far-field steering vector with same direction-of-arrival (DOA) allocation. By the way, we simplify the location estimation of wideband sources in the near-field to be narrowband sources in the far field. The proposed method can track the DOAs …

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Determining The Cyclic Strength Of Geomaterials Under Low Frequency Cyclic Loading With Acoustic Emission, Helsin Wang, Ta-Peng Chang, Ju-Jiang Hung Dec 2010

Determining The Cyclic Strength Of Geomaterials Under Low Frequency Cyclic Loading With Acoustic Emission, Helsin Wang, Ta-Peng Chang, Ju-Jiang Hung

Journal of Marine Science and Technology–Taiwan

Acoustic emission is traditionally regarded as an explicit measurable index for microcracking in geomaterials. An accelerative cracking point is first introduced based on the different characteristics of acoustic emission at stable fracture propagation stage. Accelerative cracking point is located between the fracture initiation strength and critical energy release point, a point causing a fatal uncontrolled fracture in materials. Microcracking dominates the real mechanical characteristics in the materials, not reflected on the conventional mechanical experimental results as the stress level beyond the accelerative cracking point at the stable fracture propagation stage. At this stage, non-stress-controlled fracture in materials could arise as …

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Response Analysis Of Concrete Piles Subjected To Lateral Impact, Helsin Wang, Ta-Peng Chang, Jin-Jun Wang Dec 2010

Response Analysis Of Concrete Piles Subjected To Lateral Impact, Helsin Wang, Ta-Peng Chang, Jin-Jun Wang

Journal of Marine Science and Technology–Taiwan

One-dimensional wave theory is assumed to interpret longitudinal waves impulse response or impact echo testing results in concrete piles. Transient flexural waves tests are alternatively introduced to evaluate piles where the tops are inaccessible for conventional longitudinal wave testing. The resulting interpretation for flexural waves based on one-dimensional wave theory is improper due to various velocities at low frequencies. In this research, treating a pile as a waveguide, three-dimensional wave theory provides the dispersion relation between phase flexural velocity and frequency. Using the resonance solutions and first-mode flexural wave curve is a simple and efficient method to find the resonant …

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The Study On The Asymptotic Profile And The Flow Patterns In Front Of A Long Bubble Through A Circular Tube, Cheng-Hsing Hsu, Chia-Chuan Kuo, Ching-Chuan Chang, Kuang-Yuan Kung Dec 2010

The Study On The Asymptotic Profile And The Flow Patterns In Front Of A Long Bubble Through A Circular Tube, Cheng-Hsing Hsu, Chia-Chuan Kuo, Ching-Chuan Chang, Kuang-Yuan Kung

Journal of Marine Science and Technology–Taiwan

Department of Civil Engineering, Army Academy, Chung-Li, Taoyuang, Taiwan, R.O.C

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An Algorithm For Predicting Attitudes Of Floating Bodies With Arbitrary Configurations In Liquids, Jiann-Lin Chen, Chun-I Chen, Li-Ming Chu Dec 2010

An Algorithm For Predicting Attitudes Of Floating Bodies With Arbitrary Configurations In Liquids, Jiann-Lin Chen, Chun-I Chen, Li-Ming Chu

Journal of Marine Science and Technology–Taiwan

A robust and efficient algorithm is proposed to quasiunsteadily predict attitudes of floating bodies with arbitrary configurations. Numerical techniques for accuracy and computing time saving are addressed. A floating cylinder was modeled as a benchmark, by theoretical and experimental approaches, to validate the developed program. Attitudes of two kinds of floating bodies, which are a body composed of multiple objects and a submarine-like submersible, were simulated to show the feasibility of the present algorithm. Interestingly, the simulated results of a slender body, such as a cylinder or a submersible, show that the attitude variation is very sensitive to the longitudinal …

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Fast Block Motion Estimation With Edge Alignment On H.264 Video Coding, Chi-Han Chuang, Chien-Hua Su, Shyi-Chyi Cheng Dec 2010

Fast Block Motion Estimation With Edge Alignment On H.264 Video Coding, Chi-Han Chuang, Chien-Hua Su, Shyi-Chyi Cheng

Journal of Marine Science and Technology–Taiwan

This paper presents a novel block matching scheme with edge alignment strategy on H.264 video coding, which uses multiple references and multiple block sizes for motion estimation in order to improve the rate-distortion performance. In H.264, the computational complexity is linearly dependent on the number of allowed reference frames and block sizes using the full exhaustive search. Many fast block-matching algorithms reduce the computational complexity of motion estimation by carefully designing the search patterns with different shapes or sizes which have significant impact on the search speed and distortion performance. However, the search speed and the distortion performance conflict often …

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Investigation On Vibration Energy Flow Characteristics In Coupled Plates By Visualizaiton Techniques, Kai Li, Sheng Li, De-You Zhao Dec 2010

Investigation On Vibration Energy Flow Characteristics In Coupled Plates By Visualizaiton Techniques, Kai Li, Sheng Li, De-You Zhao

Journal of Marine Science and Technology–Taiwan

The transmission and distribution of vibration energy flow in coupled plates are studied by the vibration intensity method together with visualization technique. Formulations for vibration intensity calculations and streamline representation, and the equations for energy flow are presented. The intensity vector, streamline map and energy distribution of coupled plates subject to a point force excitation are calculated and visualized to predict vibration energy transmission. The vibrational energy flows are very complex and dependent on the excitation frequencies, junction forms and boundaries. The energy sources, sinks, transmission paths and vortex fields are clearly shown with visualization technique. It is shown that …

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Cooperation-Competition Model Of Transportation Construction Project From The Viewpoint Of Budget Allocation, Maw-Cherng Lin, Edward Ming-Yang Wu, Junn-Yuan Teng, Wen-Chih Huang Dec 2010

Cooperation-Competition Model Of Transportation Construction Project From The Viewpoint Of Budget Allocation, Maw-Cherng Lin, Edward Ming-Yang Wu, Junn-Yuan Teng, Wen-Chih Huang

Journal of Marine Science and Technology–Taiwan

Department of Marine Engineering, National Taiwan Ocean University, Keelung 202, Taiwan.

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In Vivo Evidence For The Iron-Binding Activity Of An Iron-Sulfur Cluster Assembly Protein Isca In Escherichia Coli, Wu Wang, Hao Huang, Guoqiang Tan, Fan Si, Min Liu, Aaron P. Landry, Jianxin Lu, Huangen Ding Dec 2010

In Vivo Evidence For The Iron-Binding Activity Of An Iron-Sulfur Cluster Assembly Protein Isca In Escherichia Coli, Wu Wang, Hao Huang, Guoqiang Tan, Fan Si, Min Liu, Aaron P. Landry, Jianxin Lu, Huangen Ding

Faculty Publications

IscA is a key member of the iron-sulfur cluster assembly machinery in prokaryotic and eukaryotic organisms; however, the physiological function of IscA still remains elusive. In the present paper we report the in vivo evidence demonstrating the iron-binding activity of IscA in Escherichia coli cells. Supplement of exogenous iron (1 μM) in M9 minimal medium is sufficient to maximize the iron binding in IscA expressed in E. coli cells under aerobic growth conditions. In contrast, IscU, an iron-sulfur cluster assembly scaffold protein, or CyaY, a bacterial frataxin homologue, fails to bind any iron in E. coli cells under the same …

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Volume 48, Number 17: December 15, 2010, University Of North Dakota Dec 2010

Volume 48, Number 17: December 15, 2010, University Of North Dakota

University Letter Archive

No abstract provided.

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A Time-Domain Analysis Of Wave Force On Small-Scale Cylinders Of Offshore Structures, Bao-Lei Geng, Bin Teng, De-Zhi Ning Dec 2010

A Time-Domain Analysis Of Wave Force On Small-Scale Cylinders Of Offshore Structures, Bao-Lei Geng, Bin Teng, De-Zhi Ning

Journal of Marine Science and Technology–Taiwan

To get the accurate wave loads on the small-scale cylinders on the platforms, not only the incident wave but also the diffraction and radiation wave should be considered. By taking the wave diffraction from a fixed large-scale cylinder as an example, wave loads on small-diameter cylinders in the diffraction wave field are calculated by Morison formula in this paper. A time-domain numerical model on wave diffraction from large-scale structures is developed with a higher-order boundary element method (HOBEM). Then the velocity and acceleration of any water particle in the fluid domain can be produced from the solved diffraction potential. Results …

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Improving The Emulsion Stability Of Sponge Cake By The Addition Of ?-Polyglutamic Acid, Yung-Shin Shyu, Wen-Chieh Sung Dec 2010

Improving The Emulsion Stability Of Sponge Cake By The Addition Of ?-Polyglutamic Acid, Yung-Shin Shyu, Wen-Chieh Sung

Journal of Marine Science and Technology–Taiwan

The batter properties of sponge cake with the addition of γ-polyglutamic acid (PGA) at different levels (0.05, 0.1, 0.5 gkg-1, w/w) was evaluated. The viscosity, emulsion stability and foam stability increased at the addition of 0.5 gkg-1 PGA level. PGA caused significant declines in the differential scanning calorimetry (DSC) enthalpy, onset and peak temperatures of ice-melting transition of sponge cake. Sponge cakes manufactured with 0.5 gkg-1 PGA addition were in general lighter on crumb color and white index than the control. Scanning electron microscopy showed that sponge cake with the addition of 0.1 and 0.5 gkg-1 PGA exhibited microstructures having …

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Mortgage Servicing, Adam J. Levitin, Tara Twomey Dec 2010

Mortgage Servicing, Adam J. Levitin, Tara Twomey

Documents

No abstract provided.

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The Antelope, University Of Nebraska At Kearney Dec 2010

The Antelope, University Of Nebraska At Kearney

The Antelope

No abstract provided.

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The Effect Of Passive Stretching And Isometric Contractions On Delayed Onset Muscle Soreness After A Typical Bout Of Exercise, John W. Gibson Dec 2010

The Effect Of Passive Stretching And Isometric Contractions On Delayed Onset Muscle Soreness After A Typical Bout Of Exercise, John W. Gibson

Theses and Dissertations

Delayed Onset Muscle Soreness (DOMS) is a common response to activities involving lengthening contractions. Muscle inflammation is associated with DOMS and may play an integral role in protecting a muscle from damage and soreness in response to subsequent bouts of lengthening contractions. Research in animals has shown that prior exposure to passive stretching and isometric contractions of a muscle resulting in muscle inflammation attenuates the muscle inflammatory response following subsequent bouts of lengthening contractions. The purpose of this study was to determine whether passive stretching and isometric contractions in humans would reduce DOMS following a typical bout of resistance exercise. …

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Discovering Cristina: A Study Of Cristina Peri Rossi's Life And Literary Works And Marketing Them To Worldwide Audiences, Dunja Zdero Dec 2010

Discovering Cristina: A Study Of Cristina Peri Rossi's Life And Literary Works And Marketing Them To Worldwide Audiences, Dunja Zdero

Mahurin Honors College Capstone Experience/Thesis Projects

As one of the leading female authors of the Latin American literature, Cristina Peri Rossi has produced a large collection of works including more than 40 published novels, essays, and short story and poetry collections. Her literature is known for addressing various topics such as political and social injustices, love, passion, feminism, sexuality, and gender studies. As an exile in Spain, Peri Rossi also offers an interesting blend of the two Spanish-speaking worlds. Although many other authors speak of the same issues, Peri Rossi provides a very unique insight into both cultures that cannot be seen elsewhere: an insight of …

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Midazolam Inhibits Hippocampal Long-Term Potentiation And Learning Through Dual Central And Peripheral Benzodiazepine Receptor Activation And Neurosteroidogenesis, Kazuhiro Tokuda, Kazuko A. O'Dell, Yukitoshi Izumi, Charles F. Zorumski Dec 2010

Midazolam Inhibits Hippocampal Long-Term Potentiation And Learning Through Dual Central And Peripheral Benzodiazepine Receptor Activation And Neurosteroidogenesis, Kazuhiro Tokuda, Kazuko A. O'Dell, Yukitoshi Izumi, Charles F. Zorumski

Open Access Publications

Benzodiazepines (BDZs) enhance GABA(A) receptor inhibition by direct actions on central BDZ receptors (CBRs). Although some BDZs also bind mitochondrial receptors [translocator protein (18 kDa) (TSPO)] and promote the synthesis of GABA-enhancing neurosteroids, the role of neurosteroids in the clinical effects of BDZs is unknown. In rat hippocampal slices, we compared midazolam, an anesthetic BDZ, with clonazepam, an anticonvulsant/anxiolytic BDZ that activates CBRs selectively. Midazolam, but not clonazepam, increased neurosteroid levels in CA1 pyramidal neurons without changing TSPO immunostaining. Midazolam, but not clonazepam, also augmented a form of spike inhibition after stimulation adjacent to the pyramidal cell layer and inhibited …

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Golgi Cells Operate As State-Specific Temporal Filters At The Input Stage Of The Cerebellar Cortex, Shane A. Heine, Stephen M. Highstein, Pablo M. Blazquez Dec 2010

Golgi Cells Operate As State-Specific Temporal Filters At The Input Stage Of The Cerebellar Cortex, Shane A. Heine, Stephen M. Highstein, Pablo M. Blazquez

Open Access Publications

Cerebellar processing of incoming information begins at the synapse between mossy fibers and granule cells, a synapse that is strongly controlled through Golgi cell inhibition. Thus, Golgi cells are uniquely positioned to control the flow of information into the cerebellar cortex and understanding their responses during behavior is essential to understanding cerebellar function. Here we show, for the first time, that Golgi cells express a unique oculomotor-related signal that can be used to provide state- and time-specific filtering of granule cell activity. We used newly established criteria to identify the unique electrophysiological signature of Golgi cells and recorded these neurons …

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The Song Is Not The Same: Jews And American Popular Music, Josh Kun Dec 2010

The Song Is Not The Same: Jews And American Popular Music, Josh Kun

The Jewish Role in American Life: An Annual Review

There has been a long-standing relationship between Jewish Americans and the world of American popular music. The essays in this volume blend surveys of music making as a whole with profiles of single artists. This is volume 8 of the annual publication, The Jewish Role in American Life (ISSN 1934-7529), produced by the Casden Institute for the Study of the Jewish Role in American Life at the University of Southern California.

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Evaluation Of Hydraulic Efficiency Of Disinfection Systems Based On Residence Time Distribution Curves, Jordan M. Wilson, Subhas K. Venayagamoorthy Dec 2010

Evaluation Of Hydraulic Efficiency Of Disinfection Systems Based On Residence Time Distribution Curves, Jordan M. Wilson, Subhas K. Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Hydraulic efficiency is a vital component in evaluating the disinfection capability of a contact system. Current practice evaluates these systems based upon the theoretical detention time (TDT) and the rising limb of the residence time distribution (RTD) curve. This evaluation methodology is expected because most systems are built based on TDT under a "black box" approach to disinfection system design. Within recent years, the proliferation of computational fluid dynamics (CFD) has allowed a more insightful approach to disinfection system design and analysis. Research presented in this study using CFD models and physical tracer studies shows that evaluation methods based upon …

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Modeling And Testing Of Dna Motion For Nanoinjection, Regis Agenor David Dec 2010

Modeling And Testing Of Dna Motion For Nanoinjection, Regis Agenor David

Theses and Dissertations

A new technique, called nanoinjection, is being developed to insert foreign DNA into a living cell. Such DNA transfection is commonly used to create transgenic organisms vital to the study of genetics, immunology, and many other biological sciences. In nanoinjection, DNA, which has a net negative charge, is electrically attracted to a micromachined lance. The lance then pierces the cell membranes, and the voltage on the lance is reversed, repelling the DNA into the cell. It is shown that DNA motion is strongly correlated to ion transport through a process called electrophoresis. Gel electrophoresis is used to move DNA using …

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Lost On Purpose, Matthew Mccain Martin Dec 2010

Lost On Purpose, Matthew Mccain Martin

Electronic Theses and Dissertations Archive

In nine linked nonfiction essays and eight codas, the author seeks to understand the meaning of being lost and the importance of not knowing in an era of instantaneous and ubiquitous information. Through extensive interviews, research, and memoir, the author seeks out those who choose to live lost in order to understand his own penchant for escape. Framed by the mystery of antique maps, these essays find the author in several different locations, from Tasmania to Siberia to Utah. In each, the author meets and spends time with an ambassador of each place before finally attempting to become lost himself.

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Representation And Validation Of Domain And Range Restrictions In A Relational Database-Driven Ontology Maintenance System, Patrick G. Edgett, Leong Lee, Jennifer L. Leopold, Alton B. Coalter Dec 2010

Representation And Validation Of Domain And Range Restrictions In A Relational Database-Driven Ontology Maintenance System, Patrick G. Edgett, Leong Lee, Jennifer L. Leopold, Alton B. Coalter

Computer Science Faculty Research & Creative Works

An ontology can be used to represent and organize the objects, properties, events, processes, and relations that embody an area of reality [1]. These knowledge bases may be created manually (by individuals or groups), and/or automatically using software tools, such as those developed for information retrieval and data mining. Recently the National Science Foundation funded a large collaborative development project for the semi-automated construction of an ontology of amphibian anatomy (AmphibAnat [2]). to satisfy the extensive community curation requirements of that project, a generic, Web-Based, multi-user, relational database ontology management system (RDBOM [3]) was constructed, based upon a novel theoretical …

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Incorporating Feedback From Multiple Sensory Modalities Enhances Brain–Machine Interface Control, Aaron J. Suminski, Dennis C. Tkach, Andrew H. Fagg, Nicholas G. Hatsopoulos Dec 2010

Incorporating Feedback From Multiple Sensory Modalities Enhances Brain–Machine Interface Control, Aaron J. Suminski, Dennis C. Tkach, Andrew H. Fagg, Nicholas G. Hatsopoulos

Biomedical Engineering Faculty Research and Publications

The brain typically uses a rich supply of feedback from multiple sensory modalities to control movement in healthy individuals. In many individuals, these afferent pathways, as well as their efferent counterparts, are compromised by disease or injury resulting in significant impairments and reduced quality of life. Brain–machine interfaces (BMIs) offer the promise of recovered functionality to these individuals by allowing them to control a device using their thoughts. Most current BMI implementations use visual feedback for closed-loop control; however, it has been suggested that the inclusion of additional feedback modalities may lead to improvements in control. We demonstrate for the …

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An Adaptive Coverage Control Algorithm For Deployment Of Nonholonomic Mobile Sensors, Chaouki T. Abdallah, Jose Marcio Luna, Rafael Fierro, John Wood Dec 2010

An Adaptive Coverage Control Algorithm For Deployment Of Nonholonomic Mobile Sensors, Chaouki T. Abdallah, Jose Marcio Luna, Rafael Fierro, John Wood

Electrical & Computer Engineering Faculty Publications

We show the Lyapunov stability and convergence of an adaptive and decentralized coverage control for a team of mobile sensors. This new approach assumes nonholonomic sensors rather than the usual holonomic sensors found in the literature. The kinematics of the unicycle model and a nonlinear control law in polar coordinates are used in order to prove the stability of the controller applied over a team of mobile sensors. The convergence and feasibility of the coverage control algorithm are verified through simulations in Matlab. Furthermore, some experiments are carried out using a team of four Pioneer 3-AT robots sensing a piecewise …

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Newborn Care, Training Could Save Millions, Tyler Greer Dec 2010

Newborn Care, Training Could Save Millions, Tyler Greer

Browse All News

No abstract provided.

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Intradermal Immunization Of Mice With Radiation-Attenuated Sporozoites Of Plasmodium Yoelii Induces Effective Protective Immunity, Tatiana Voza, Chahnaz Kebaier, Jerome P. Vanderberg Dec 2010

Intradermal Immunization Of Mice With Radiation-Attenuated Sporozoites Of Plasmodium Yoelii Induces Effective Protective Immunity, Tatiana Voza, Chahnaz Kebaier, Jerome P. Vanderberg

Publications and Research

Background Intravenous injection of mice with attenuated Plasmodium berghei sporozoites induces sterile immunity to challenge with viable sporozoites. Non-intravenous routes have been reported to yield poor immunity. Because intravenous immunization has been considered to be unacceptable for large scale vaccination of humans, assessment was made of the results of intradermal immunization of mice with Plasmodium yoelii, a rodent malaria parasite whose infectivity resembles that of human malaria. Methods Mice were immunized with two injections of isolated, radiation-attenuated P. yoelii sporozoites, either by intravenous (IV) or intradermal (ID) inoculation. In an attempt to enhance protective immunogenicity of ID-injections, one group of …

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A Simple Method To Reduce Infection Of Ventriculoperitoneal Shunts Clinical Article, Atiq-Ur Rehman, Tausif-Ur Rehman, Hassaan H. Bashir, Vikas Gupta Dec 2010

A Simple Method To Reduce Infection Of Ventriculoperitoneal Shunts Clinical Article, Atiq-Ur Rehman, Tausif-Ur Rehman, Hassaan H. Bashir, Vikas Gupta

Department of Medicine

Object: Postoperative shunt infection is the most common and feared complication of ventriculoperitoneal (VP) shunt placement for treatment of hydrocephalus. The rate of shunt infection is highest in the 1st postoperative month. The most common organisms responsible for shunt infection include coagulase-negative Staphylococcus and Staphylococcus aureus. This suggests a transfer of Patient's skin flora via the surgeons' glove as a possible means of infection. The authors conducted a study to determine if the rate of postoperative shunt infections could be reduced simply by changing gloves before handling the shunt catheter. Methods: A total of 111 neonates born with congenital hydrocephalus …

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Information-Seeking Behavior Of Novelists In Archives, Cary G. Osborne Dec 2010

Information-Seeking Behavior Of Novelists In Archives, Cary G. Osborne

Journal of Western Archives

Archives are a frequently untapped resource for novelists. Accounts of daily life, the lives of individuals, details of specific eras, and other minutiae found in the documents and memorabilia housed in archives can be used to fill out the essential scenes and events of the stories. Such facts and personal details help fiction writers make their stories real to readers and keep misconceptions and factual errors out. This study looks at the limited literature on the subject of authors in archives and presents examples of the types of information housed in particular archives to illustrate the kinds of details that …

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Cooperating Teachers’ Perceptions Of Pedagogical Importance, Competence, And Programmatic Need: A Frontline Assessment Of Agricultural Student Teachers, Amy Crump, John C. Ricketts, Dennis W. Duncan Dec 2010

Cooperating Teachers’ Perceptions Of Pedagogical Importance, Competence, And Programmatic Need: A Frontline Assessment Of Agricultural Student Teachers, Amy Crump, John C. Ricketts, Dennis W. Duncan

Online Journal for Workforce Education and Development

The purpose of this descriptive study was to determine, as witnessed by cooperating teachers, what learning gaps student teachers brought to the student teaching experience “Supervision of student teachers during student teaching is a very important exercise in teacher training” (Thobega & Miller, 2008, p. 65)..Cooperating teachers spend 10 plus weeks observing student teachers of agricultural education in [state]. One may argue that the cooperating teacher is the best judge of success when looking at the student teacher. Cooperating teachers believed using computers and multimedia in classroom teaching was a strength student teachers possessed. The cooperating teachers felt that the …

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