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Numerical Stability Analysis For Independent Modal Vibration Suppression Of A Fluid-Conveying Pipe Using A Piezoelectric Inertia Actuator, Yih-Hwang Lin, Jui-Lung Chen, Chih-Liang Chu, Yau-Kun Tsai

Journal of Marine Science and Technology–Taiwan

This study deals with numerical stability analysis for independent modal vibration suppression of a fluid-conveying pipe using a piezoelectric inertia actuator (PIA). The stability issue of the approach as proposed by the pioneer developers is addressed. The approach utilizes an infinite control weight for one component of the modal control input and results in a severe control spillover problem for the complex mode controlled, easily leading to closed loop instability even for open loop stable systems. The stability of the system depends on how the left eigenvector is normalized for transforming the original coupled equations to the decoupled ones in …

A Creative Differential Evolution Algorithm For Global Optimization Problems, Hsin-Chuan Kuo, Ching-Hai Lin, Jeun-Len Wu

Journal of Marine Science and Technology–Taiwan

Under the framework of the differential evolution algorithm, we develop a creative algorithm by extrapolating the thinking of the garbage can model. The developed algorithm is hence named in the study as a creative differential evolution algorithm (CDE). To verify the performance of the CDE, we selected seven well-known benchmark functions; three of them are uni-modal and four multi-modal. In conducting the numerical experiment, we adopted two different numbers of dimensions for each test function, which is 50 and 100. The results show that CDE can find the global optimum robustly, demonstrate that CDE significantly improves the DE’s performance.

Prediction And Simulation Of Broadband Propeller Noise, Ali Can Takinacı, Tarkan Taralp

Journal of Marine Science and Technology–Taiwan

An empirical prediction model of broadband noise for marine propellers is proposed. The model is composed of two components. The first component is the empirical prediction of the frequency domain broadband noise based on a wellestablished lifting surface algorithm providing accurate prediction of the cavitation pattern on the propeller. The second component is the modulation of the noise in the time domain. The two components of the model applied in sequence generate an output yielding a realistic propeller spectrum and audio signature. The propeller noise developed in this study, with the addition of other sources such as machinery and natural …

Scale Effects In Scour Physical-Model Tests: Cause And Alleviation, Yu-Hai Wang, Wei-Guo Jiang, Yan-Hong Wang

Journal of Marine Science and Technology–Taiwan

Scale effect occurs when a prototype hydraulic process is simulated at a laboratory scale due to dissatisfaction of similarity laws. It might lead to considerable deviation when the model scour depth is extrapolated to prototype value. Three popular experimental approaches including predictionequation-targeted flume test, series-model test and similitude-model test are reviewed with emphasis upon their merits and limitations in reducing or alleviating scale effects. Scale laws guiding scour physical-model design are discussed for performing cost-effective model tests. An empirical equation is further derived from data of clear-water pier scour experiments to examine the test results in up-scale extrapolating. It is …

An Assessment Of Job Performance Of Vessel Traffic Service Operators Using An Analytic Hierarchy Process And A Grey Interval Measure, Hsi-Ching Chen, Hua-An Lu, Hsien-Hua Lee

Journal of Marine Science and Technology–Taiwan

Operator training is a vital issue for vessel traffic service (VTS), since the International Maritime Organization has adopted the new version of the Guidelines for VTS 1997. Many countries have begun to alter the content of training courses, in order to comply with international standards. However, Taiwan still lacks effective method to assess individual operator’s job performance, capabilities, or the effectiveness of a training program. This study collates the standard training courses to construct an analytic hierarchy process (AHP) model and to investigate the relative evaluation weights for all criteria, using the group decision of the principal instructors. Grey interval …

Emergency Evacuation Route For The Passenger Ship, Ching-Wu Chu, Hua-An Lu, Chang-Zui Pan

Journal of Marine Science and Technology–Taiwan

Emergency evacuation of a ship becomes an important issue in case of an accident. In order to present the TITANIC incident in 1912 from recurring again, IMO has stipulated International Convention for the Safety of Life at Sea (SOLAS). The main purpose of this study is to find an optimal personnel evacuation route in order to increase personnel’s security at sea. Mathematical programming is the research methodology in this study. After formulating the model and exploring different evacuation scenarios, we compare the results from our minimum cost flow model with that of originnal evacuation plan. Some suggestions are provided.

On The Stabilization Of A Class Of Uncertain Systems With Time-Varying Delay Via Vsc Approach, Wen-Jeng Liu

Journal of Marine Science and Technology–Taiwan

In this paper, the robust stabilization problem for a class of time-delayed multi-input systems with matched and unmatched uncertainties is considered. Here, all the matched uncertainties, unmatched uncertainties and the delay term may be time-varying. Variable structure control (VSC) is suggested to design stabilizing controllers for these uncertain time-delayed multi-input systems. The proposed controllers guarantee the global reaching condition of the sliding mode in these uncertain time-delayed multi-input systems. Further, they ensure that the system trajectories asymptotically converge to the sliding mode. In the sliding mode, the investigated time-delayed systems with matched and unmatched uncertainties still possess the insensitivity to …

Forced Convection Film Condensation Of Downward-Flowing Vapor On Horizontal Tube With Wall Suction Effect, Tong-Bou Chang, Fu-Jen Wang

Journal of Marine Science and Technology–Taiwan

The heat transfer performance of the condensate layer formed by a downward-flowing, dry saturated vapor flowing over an isothermal horizontal tube with wall suction effects is examined. Under the effects of wall suction, the gravity force, the potential flow pressure gradient, and the interfacial shear stress, the local/mean Nusselt numbers of the condensate film are obtained as a function of the Jakob number Ja, the Prandtl number Pr, the Rayleigh number Ra, the two-phase mean Reynolds number Rev, the dimensionless pressure gradient parameter P, and the suction parameter Sw. The results show that the mean Nusselt number increases with increasing …

Methods, Apparatuses And Computer Program Products For Analyzing Public Social Content And Providing Social Commerce Content Items To Entities

Defensive Publications Series

An online system for providing social commerce data to one or more network entities is disclosed. The online system may analyze public social content generated by one or more users associated with the online system such as, for example a social-networking system. The online system may determine similarities among data items associated with the social content. The online system may determine whether the data items associated with the social content relates to one or more products. The online system may classify one or more determined similar products into corresponding product groups. The online system may determine trends and insight data …

Cold War Reckonings: Authoritarianism And The Genres Of Decolonization, Jini Kim Watson

Literature

How did the Cold War shape culture and political power in decolonizing countries and give rise to authoritarian regimes in the so-called free world? Cold War Reckonings tells a new story about the Cold War and the global shift from colonialism to independent nation-states. Assembling a body of transpacific cultural works that speak to this historical conjuncture, Jini Kim Watson reveals autocracy to be not a deficient form of liberal democracy, but rather the result of Cold War entanglements with decolonization.

Focusing on East and Southeast Asia, the book scrutinizes cultural texts ranging from dissident poetry, fiction, and writers’ conference …

City Of Sycamore 2021 Comprehensive Plan Update, Mim Evans, Todd Vanadilok, Egret & Ox Planning, Llc, Andy Blanke

Reports, Whitepapers, Articles, and Other Publications

The City of Sycamore Comprehensive Plan Update 2020 was completed in conjunction with the Economic Development Playbook. (https://commons.lib.niu.edu/handle/10843/24304) Coordinating preparation of these two documents ensures that land planning and economic development efforts of the City are mutually supportive. In addition, the combined process resulted in cost savings to the City and additional community input for each of the documents.

Farmer’S Market Research & Recommendations, Jim Speer

2021 Spring Reports (Sullivan)

The City of Sullivan’s Quality of Life plan indicates a need for a local farmer’s market and other community gathering spaces. ENVI460 students were tasked with putting forth recommendations for a community farmer’s market space that would meet the needs of Sullivan, IN. Students recommended operational procedures for the 3 N. Section Street in Sullivan as the farmer’s market. They also provided construction and multipurpose use recommendations to enact.

Pollination Habitat And Flower Plating For City Beautification, Jim Speer

2021 Spring Reports (Sullivan)

The City of Sullivan identified needs to improve sustainable infrastructure and green space in Sullivan, IN through their Quality of Life plan. Students in ENVI460 were tasked with providing recommendations for their daily operations and site plans that could improve habitats and attractiveness for the community and tourists. Students provided recommendations for native habitat planting and community involvement/education. They also provided site recommendations for community garden and green space updates.

Complete Streets, Jim Speer

2021 Spring Reports (Sullivan)

The City of Sullivan enacted a Quality of Life plan to address multiple improvements to their city, including some of the city’s infrastructure. Mayor Clint Lamb’s goal is to connect the city via roadways and trail systems that are accessible for all transportation methods and attractive for community members and tourists. ENVI460 students provided recommendations based off the city’s need for improvements to road systems and attractiveness. Students recommended a new roadway design for the Main Street section, sustainable infrastructure additions and buffer zones, and green space for attraction sites.

Sullivan Trail Connector, Jim Speer

2021 Spring Reports (Sullivan)

The City of Sullivan has multiple plans for trail connectors throughout the city. ENVI460 students provided recommendations for a trail connector between the City of Sullivan and Sullivan County. This trail connector harnesses positives of both the city and county to increase use. Students also provided recommendations for multi-use options on the trail system.

Safety Protocols For Fall 2021 Announced, Whittier College

COVID-19 @ Whittier (full list of items)

In anticipation of your return to campus, Whittier College has established protocols to provide a safe and healthy environment for our students, faculty, and staff.

Clinical Factors That Influence Nurse Responsiveness In Activating Rapid Response Services, James Tormey

Dissertations

This study advances the understanding of essential clinical knowledge skillsets that nurses need to identify and respond to early signs of patient deterioration. The identification of critical thinking and assessment skills that nurses require may support professional practice through improved nursing education curriculum or additions of necessary critical care skillsets. The purpose of this study, which was framed by Benner's novice-to-expert model, was to identify and measure critical thinking skills that influence a nurse's ability to detect deterioration in patients and call the rapid response system (RRS). The research questions addressed the relationship between a nurse's clinical or reasoning skill …

Summer Commencement Will Be Virtual At Uab, Shannon Thomason

Browse All News

No abstract provided.

Retention, Structural Empowerment, And Dialysis Nursing: Integrating Kanter's Theory And The Refined Nurse Worklife Model, Richard C. Scepura

Dissertations

During this two-phase project, factors that dialysis nurses experience contributing to stress, retention, and the intentions of staying were examined. The theoretical frameworks of Kanter's Theory of Structural Empowerment (KTSE) and The Refined Nurse Worklife Model (NWLM) were utilized in the creation of a learning module regarding structural empowerment. In phase one this was reviewed by an expert dialysis nurse focus group from seven different states with experience in dialysis from seven to forty years. During phase one, the expert panel gave high-frequency domain input including access to support, resources, and the need for strong leadership. The module was adjusted …

Impervious Surfaces Mapping At City Scale By Fusion Of Radar And Optical Data Through A Random Forest Classifier, Binita Shrestha, Haroon Stephen, Sajjad Ahmad

Civil and Environmental Engineering and Construction Faculty Research

Urbanization increases the amount of impervious surfaces, making accurate information on spatial and temporal expansion trends essential; the challenge is to develop a cost-and laboreffective technique that is compatible with the assessment of multiple geographical locations in developing countries. Several studies have identified the potential of remote sensing and multiple source information in impervious surface quantification. Therefore, this study aims to fuse datasets from the Sentinel 1 and 2 Satellites to map the impervious surfaces of nine Pakistani cities and estimate their growth rates from 2016 to 2020 utilizing the random forest algorithm. All bands in the optical and radar …

Sullivan Sustainable Housing Unit, Riem Rostom

2021 Spring Reports (Sullivan)

Students in ENGR401 were tasked with providing recommendations for an energy efficient heating and cooling system for a housing design provided by IAD251. Students performed necessary calculations and compared information with sustainability factors. There are also further recommendations for building sustainable housing.

Adaptive Control Mechanism For Uncertain Systems With Actuator Dynamics, Benjamin C. Gruenwald, Tansel Yucelen, Kadriye Merve Dogan, Jonathan A. Muse

USF Patents

The present disclosure describes an actuator system comprising an actuator unit that is configured to be positioned next to a structure; and an adaptive controller unit that is configured to receive a command input for the actuator unit and output an actuator command based on a reference model of a physical system that includes the actuator unit and the structure, wherein the actuator command does not alter trajectories of the reference model. In various embodiments, the uncertain dynamical system of the physical system is augmented with the actuator dynamics to provide improved stability.

Cyclic Peptide Conjugates And Methods Of Use, Lori Hazlehurst, Christoph Rader, Xiuling Li, Mark Mclaughlin

USF Patents

The present invention concerns cyclic compounds, compositions comprising the cyclic compounds, linkers, a method of preparing a carrying agent:cyclic compound adduct, a method for treating disorders such as proliferation disorders (e.g., malignancies), bone deficiency diseases, and autoimmune diseases, and a method for suppressing the growth of, or inducing apoptosis in, cells (e.g., malignant cells).

Applied Sciences Faculty Member Receives Powe Award, Sarah Sapp

University of Mississippi News

Ying Hao plans to use funding to explore using telehealth to aid rural children with autism

Thermal Legacy Of A Large Paleolake In Taylor Valley, East Antarctica, As Evidenced By An Airborne Electromagnetic Survey, Krista F. Myers, Peter T. Doran, Slawek M. Tulaczyk, Neil T. Foley, Thue S. Bording, Esben Auken, Hilary A. Dugan, Jill A. Mikucki, Nikolaj Foged, Denys Grombacher, Ross A. Virginia

Faculty Publications

Previous studies of the lakes of the McMurdo Dry Valleys have attempted to constrain lake level history, and results suggest the lakes have undergone hundreds of meters of lake level change within the last 20ĝ€¯000 years. Past studies have utilized the interpretation of geologic deposits, lake chemistry, and ice sheet history to deduce lake level history; however a substantial amount of disagreement remains between the findings, indicating a need for further investigation using new techniques. This study utilizes a regional airborne resistivity survey to provide novel insight into the paleohydrology of the region. Mean resistivity maps revealed an extensive brine …

Analysis Of Benefits Of An Expansion To Udot's Incident Management Program, Logan Stewart Bennett

Theses and Dissertations

In 2018 the Utah Department of Transportation (UDOT) funded a study in which data were collected to evaluate performance measures for UDOT's Incident Management Team (IMT) program. After that study was completed, UDOT received funding to expand the size of its IMT program. Additionally, TransSuite, a data source used by the UDOT Traffic Operations Center to log incident-related data, was reconfigured to provide a higher quantity of performance measure data. This study made use of the new data source, in addition to Computer Aided Dispatch logs provided by the Utah Highway Patrol that were used in the first study, to …

An Examination Of The Influence Of Distillation On The Combustion Behavior Of Apparently Equivalent Surrogate Fuels, Jay A. Lefkowitz

Theses and Dissertations

Use of surrogates to emulate the combustion behaviors of prevaporized real fuels has been widely demonstrated in the literature. However, many combustion applications utilize atomized fuel sprays, and for these configurations, the assumption of fuel property homogeneity in prevaporized fuel combustion is tenuous. This work uses a simplified distilling droplet model to demonstrate a real potential for vaporization-coupled deviations from the single-valued combustion property targets used to characterize prevaporized combustion behaviors. To verify the model-based observations, flame blowout measurements from a custom-built annular spray burner rig are measured. Sets of essentially equivalent prevaporized jet fuel and gasoline surrogates suggested in …

Graduate Commencement, Philadelphia (2021), Philadelphia College Of Osteopathic Medicine

Commencements

Philadelphia Campus Graduate Commencement program, Class of 2021. Degrees include Doctor of Psychology in Clinical Psychology, Doctor of Psychology in Educational Psychology, Doctor of Psychology in School Psychology, Educational Specialist in School Psychology, Master of Science in School Psychology, Master of Science in Counseling and Clinical Health Psychology, Master of Science in Mental Health Counseling, Master of Science in Organizational Development and Leadership, Master of Science in Clinical Psychology, Master of Science in Forensic Medicine, Master of Science in Biomedical Sciences, and Master of Science in Health Sciences – Physician Assistant Studies.

Commencement Speaker: Robert F. Cuzzolino, Ed.D., Vice President …

Tweet-To-Act: Towards Tweet-Mining Framework For Extracting Terrorist Attack-Related Information And Reporting, Farkhund Iqbal, Rabia Batool, Benjamin C. M. Fung, Saiqa Aleem, Ahmed Abbasi, Abdul Rehman Javed

All Works

The widespread popularity of social networking is leading to the adoption of Twitter as an information dissemination tool. Existing research has shown that information dissemination over Twitter has a much broader reach than traditional media and can be used for effective post-incident measures. People use informal language on Twitter, including acronyms, misspelled words, synonyms, transliteration, and ambiguous terms. This makes incident-related information extraction a non-trivial task. However, this information can be valuable for public safety organizations that need to respond in an emergency. This paper proposes an early event-related information extraction and reporting framework that monitors Twitter streams, synthesizes event-specific …

Craniometric Analysis Of European Rabbit (Oryctolagus Cuniculus) Breeds To Trace Out Intraspecific And Inter Gender Morphometric Variations, Muhammad Rizwan, Rana Manzoor Ahmad, Abdul Majid Khan, Misbah Khalid, Muhammad Wajid

Journal of Bioresource Management

The family Liproidae expresses the significant variation of morphometric features at species level. In already available literature on the European rabbit (Oryctolagus cuniculus) the idea is proposed that there can be variation in the morphometric character of different breeds of Oryctolagus cuniculus but there are negligible scientific research base evidences for it. So in this study interbreed craniometric comparison of the European rabbit is carried out to trace out their intergender and intraspecific morphometric variations. The study material consists of 32 sexually mature rabbits belong to two breeds of European rabbit that are New Zealand rabbit (eight males and …