Digital Commons Network^™

Next Generation Data Analytics: Text Mining In Library Practice And Research, Muhammad Arshad, Amjid Khan, Pervaiz Ahmed, Nadia Abbas Shah

Library Philosophy and Practice (e-journal)

Text mining is the process and technique used for searching, retrieving and extracting high quality, useful and purposeful information from the ocean of unstructured and unclassified data and information in the form of text written in natural language. It is also referred to as text engineering, text data mining or text analytics. Text mining is an emerging field of research. The purpose of this paper is to review text mining in general and with special context to library and information science. Text mining involves artificial intelligence. Hence, this system is very efficient in its work as compared to human capabilities …

Scientometric Analysis Of Indian Physics Literature During 2004-2018, S C. Hosamani, C Krishnamurthy

Library Philosophy and Practice (e-journal)

The paper deals with the Indian physics literature published in resources as reflected in Web of Science (WOS) during the period 2004-2018. The study analyses India’s performance based on its publication output in physics, few Scientometric indices, such as the number of publications, number of citations, activity index, relative growth rate, doubling time, patterns of communication in national and international journals, are considered for portraying the different dimensions, Most prolific scientists and Institutions, and national & international collaboration from India were also considered. It was examined that during 2004-2018 there was a substantial increase in yearly output of Indian physics …

Providing Students With Multimodal Feedback Experiences, Dan Martin

Journal of Curriculum, Teaching, Learning and Leadership in Education

In higher education, feedback is an effective but underappreciated teaching tool that expands students’ opportunities for learning. Students need more formative feedback that can lead to dialogic experiences, and they need more feedback experiences in different mediums and modes. Providing students with multimodal feedback that is formative may lead to more dialogic experiences for students and improve their learning. Multimodal feedback experiences benefit all students, including those from diverse and disabled communities. This paper examines some of the advantages and limitations of written, audio, and video feedback and argues that feedback that is primarily formative and delivered using multiple modes …

Educational Use Of Smartphone Among University Students: A Survey Of World-Ranked Universities In Pakistan, Sadaf Rafiq, Shakeel Ahmad Khan, Tahira Yasmin, Awais Rafiq

Library Philosophy and Practice (e-journal)

The purpose of this study was to investigate the usefulness of smartphones in achieving educational goals. Moreover, this study also explores the required library services that should be accessible via smartphone. A quantitative research approach was adopted and a self-administered questionnaire was distributed among those students who currently using smartphones to answer the survey. Descriptive statistics were applied to analyze the purpose of the students in relation to use their smartphones. The findings indicate that the university students had a positive attitude to use the smartphone for academic purposes on average and across the board. They used the smartphones on …

Coordination, Adaptation, And Complexity In Decision Fusion, Weiqiang Dong

Dissertations

A parallel decentralized binary decision fusion architecture employs a bank of local detectors (LDs) that access a commonly-observed phenomenon. The system makes a binary decision about the phenomenon, accepting one of two hypotheses (H0 (“absent”) or H1 (“present”)). The k 1 LD uses a local decision rule to compress its local observations yk into a binary local decision uk; uk = 0 if the k 1 LD accepts H0 and uk = 1 if it accepts H1. The k 1 LD sends its decision uk over a noiseless dedicated channel to a Data Fusion Center (DFC). The DFC combines the …

Development Of Novel Inks And Approaches For Printing Tissues And Organs, Shen Ji

Dissertations

Tissue engineering is a multidisciplinary field that investigates and develops new methods to repair, regenerate and replace damaged tissues and organs, or to develop biomaterial platforms as in vitro models. Tissue engineering approaches require the fabrication of scaffolds using biomaterials or fabrication of living tissues using cells. As the demands of customized, implantable tissue/organs are increasing and becoming more urgent, conventional scaffold fabrication approaches are difficult to meet the requirements, especially for complex large-scale tissue fabrication. In this regard, three-dimensional (3D) printing attracted more interest over the past decades due to its unrivaled ability to fabricate highly customized tissues or …

Drone-Assisted Emergency Communications, Di Wu

Dissertations

Drone-mounted base stations (DBSs) have been proposed to extend coverage and improve communications between mobile users (MUs) and their corresponding macro base stations (MBSs). Different from the base stations on the ground, DBSs can flexibly fly over and close to MUs to establish a better vantage for communications. Thus, the pathloss between a DBS and an MU can be much smaller than that between the MU and MBS. In addition, by hovering in the air, the DBS can likely establish a Line-of-Sight link to the MBS. DBSs can be leveraged to recover communications in a large natural disaster struck area …

A Deep Machine Learning Approach For Predicting Freeway Work Zone Delay Using Big Data, Abdullah Shabarek

Dissertations

The introduction of deep learning and big data analytics may significantly elevate the performance of traffic speed prediction. Work zones become one of the most critical factors causing congestion impact, which reduces the mobility as well as traffic safety. A comprehensive literature review on existing work zone delay prediction models (i.e., parametric, simulation and non-parametric models) is conducted in this research. The research shows the limitations of each model. Moreover, most previous modeling approaches did not consider user delay for connected freeways when predicting traffic speed under work zone conditions. This research proposes Deep Artificial Neural Network (Deep ANN) and …

Human-Robot Interaction For Assistive Robotics, Jiawei Li

Dissertations

This dissertation presents an in-depth study of human-robot interaction (HRI) withapplication to assistive robotics. In various studies, dexterous in-hand manipulation is included, assistive robots for Sit-To-stand (STS) assistance along with the human intention estimation. In Chapter 1, the background and issues of HRI are explicitly discussed. In Chapter 2, the literature review introduces the recent state-of-the-art research on HRI, such as physical Human-Robot Interaction (HRI), robot STS assistance, dexterous in hand manipulation and human intention estimation. In Chapter 3, various models and control algorithms are described in detail. Chapter 4 introduces the research equipment. Chapter 5 presents innovative theories and …

Experiments And Modeling Of The Chemo-Mechanically Coupled Behavior Of Polymeric Gels, Nikola Bosnjak

Dissertations

Polymeric materials consist of mutually entangled or chemically crosslinked long njitmolecular chains which form a polymer network. Due to their molecular structure, the njitpolymeric materials are known to undergo large deformation in response to various njitenvironmental stimuli, such as temperature, chemical potential and light.

When a polymer network is exposed to a suitable chemical solvent, the solvent molecules are able to diffuse inside the network, causing it to undergo a large volumetric deformation, known as swelling. In addition to volumetric deformation, this process involves the chemical mixing of the polymer network and solvent molecules, and is typically environmentally responsive. A …

High-Speed Rail Safety Analysis Based On Dual-Weighted Complex Network, Liu Lv

Dissertations

This study uses a complex network model to analyze the causes of accidents in high-speed railway operations. By identifying the key factors that led to high-speed railway accidents, hidden safety hazards were discovered. This will help improve the operational safety of the U.S. high-speed rail line under construction.

The analysis uses the regional high-speed railway network in Guangzhou, China as a case study, including the railway (including high-speed railway) accidents that occurred in the company's jurisdiction from 2013 to 2017. With comparative analysis between general railways and high-speed railways, the changes of high-speed railway safety factors are explored. Data analysis …

Supporting User Interaction And Social Relationship Formation In A Collaborative Online Shopping Context, Yu Xu

Dissertations

The combination of online shopping and social media allow people with similar shopping interests and experiences to share, comment, and discuss about shopping from anywhere and at any time, which also leads to the emergence of online shopping communities. Today, more people turn to online platforms to share their opinions about products, solicit various opinions from their friends, family members, and other customers, and have fun through interactions with others with similar interests. This dissertation explores how collaborative online shopping presents itself as a context and platform for users' interpersonal interactions and social relationship formation through a series of studies. …

Dances And Escape Of The Vortex Quartet, Brandon Behring

Dissertations

This dissertation considers the linear stability of a one-parameter family of periodic solutions of the four-vortex problem known as 'leapfrogging' orbits. These solutions, which consist of two pairs of identical yet oppositely-signed vortices, were known to W. Gröbli (1877) and A. E. H. Love (1883) and can be parameterized by a dimensionless parameter related to the geometry of the initial configuration. Simulations by Acheson and numerical Floquet analysis by Tophøj and Aref both indicate, to many digits, that the bifurcation occurs at a value related to the inverse square of the golen ratio. Acheson observed that, after an initial period …

Online Fulfillment: F-Warehouse Order Consolidation And Bops Store Picking Problems, Wen Zhu

Dissertations

Fulfillment of online retail orders is a critical challenge for retailers since the legacy infrastructure and control methods are ill suited for online retail. The primary performance goal of online fulfillment is speed or fast fulfillment, requiring received orders to be shipped or ready for pickup within a few hours. Several novel numerical problems characterize fast fulfillment operations and this research solves two such problems. Order fulfillment warehouses (F-Warehouses) are a critical component of the physical internet behind online retail supply chains. Two key distinguishing features of an F-Warehouse are (i) Explosive Storage Policy – A unique item can be …

Characterizing Reactive Iron Mineral Coatings And Their Roles In Natural Attenuation At A Site With Historical Contamination, Han Hua

Dissertations

Reactive iron mineral coatings in redox transition zones play an important role in contaminant attenuation. These mineral coatings include poorly crystalline to crystalline iron sulfides, carbonates, and oxyhydroxides, and are a signature of the biogeochemical processes occurring. To better understand these processes, reactive iron mineral coatings are characterized in an 18-m Anaerobic Core collected from a contaminated industrial site. This study targets redox transition zones uncovered in the core. A suite of complementary analyses is applied to distinguish the surface coating mineralogy using X-ray Diffraction, X-ray fluorescence, and field-emission scanning electron microscopy (FESEM) with energy dispersive X-ray analyzer (EDX). In …

The Aging And Impacts Of Atmospheric Soot: Closing The Gap Between Experiments And Models, Ogochukwu Yvonne Enekwizu

Dissertations

The main goal of this dissertation is to generate data and parameterizations to accurately represent soot aerosols in atmospheric models. Soot from incomplete combustion of fossil fuels and biomass burning is a major air pollutant and a significant contributor to climate warming. The environmental impacts of soot are strongly dependent on the particle morphology and mixing state, which evolve continuously during atmospheric transport via a process known as aging. To make predictions of soot impacts on the environment, most atmospheric models adopt simplifications of particle structure and mixing state, which lead to substantial uncertainties. Using an experimentally constrained modeling approach, …

Performance Optimization Of Big Data Computing Workflows For Batch And Stream Data Processing In Multi-Clouds, Huiyan Cao

Dissertations

Workflow techniques have been widely used as a major computing solution in many science domains. With the rapid deployment of cloud infrastructures around the globe and the economic benefits of cloud-based computing and storage services, an increasing number of scientific workflows have migrated or are in active transition to clouds. As the scale of scientific applications continues to grow, it is now common to deploy various data- and network-intensive computing workflows such as serial computing workflows, MapReduce/Spark-based workflows, and Storm-based stream data processing workflows in multi-cloud environments, where inter-cloud data transfer oftentimes plays a significant role in both workflow performance …

The Nebraska Water Leaders Academy Graduates’ Influence On Community Capitals And Community Capacity, Dakota W. Staggs, Mark E. Burbach, Gina S. Matkin, Cheryl Burkhart-Kriesel

School of Natural Resources: Faculty Publications

An overarching goal of the Nebraska Water Leaders Academy is to prepare a diverse group of Nebraskans from across the state to impact change in their communities by working together to solve wicked water problems. With 136 graduates from across Nebraska there is potential for graduates to effect change and impact their communities’ capitals (i.e., Built, Financial, Political, Social, Human, Cultural, and Natural). This study explored the impact of Academy graduates on their communities’ capitals and community capacity to prepare for future challenges from the perspective of graduates and community members. Findings show that Academy graduates are impacting their communities …

The Stability Of Nanobubbles And Its Application In Contaminated Sediment Treatment, Shaini Dilsha Aluthgun Hewage

Dissertations

This dissertation consists of two sections. First, nanobubbles' stability and behavior are studied using experimental and theoretical approaches. Second, nanobubbles application combined with ultrasound to remediate contaminated sediments is discussed.

The stability study consists of four sections. (i). Laboratory investigation to determine bubble size distributions and zeta potentials for different gases, pH levels, temperatures, and salt conditions. (ii). A theoretical study based on the diffused double layer theory to explain nanobubbles' behavior in different NaCl concentrations. (iii). Nanobubbles' stability in electrolyte solutions under different ion valencies using deionized water, NaCl, Na₂SO₄, Na₃PO₄, …

Modeling Mass Transfer And Chemical Reaction In Industrial Nitrocellulose Manufacturing Processes, Francis Patrick Sullivan

Dissertations

A series of models are proposed to describe the production of military grade nitrocellulose from dense cellulose materials in mixtures of nitric acid, sulfuric acid, and water. This effort is conducted to provide a predictive capability for analyzing the rate and extent of reaction achieved under a range of reaction conditions used in the industrial nitrocellulose manufacturing process for sheeted cellulose materials. Because this capability does not presently exist, nitrocellulose producers have historically relied on a very narrow range of cellulose raw materials and resorted to trial and error methods to develop processing conditions for new materials. This tool enables …

The Evaluation Of Competency Certification Program Through The Lsp P-1 At Vocational High School, Budiyanto Budiyanto, Wardan Suyanto

Jurnal Pendidikan Vokasi

This research aims to evaluate the competency certification program's implementation through the First-Party Professional Certification Institute (LSP P-1) at SMK N 2 Klaten. The evaluation of the implementation of the competency certification program was reviewed on four aspects, e.g.: (1) context, (2) input, (3) process, and (4) product. This research is evaluation research based on the CIPP model (Context, Input, Process, Product). This research was conducted at SMK N 2 Klaten, which already had an LSP P-1license. The respondents were the principal, LSP chairman, secretary, treasurer, certification manager, chairman of the scheme committee, the competency test venue (TUK), and assessors. …

The Effectiveness Of Family Welfare Movement Program In Slums, Asih Kuswardinah

Jurnal Pendidikan Vokasi

Demands for family needs are increasing along with the changing times and science. Thus, Family Welfare Program or Program Kesejahteraan Keluarga (PKK) is nationally aimed to empower families to improve prosperity towards faith and devotion to God; virtuous morality; health; prosperity; independence; gender equality, justice; legal and environmental awareness. This paper aims to provide a descriptive picture to PKK Deliksari management about the level of implementation of the members of each workgroup program (I, II, III, IV); give a picture to PKK management about which workgroup is responded mostly by members; provide an overview of the skills education that is …

Implementation Of Soft Skills On Automotive Engineering Practicum Of State Vocational High Schools In West Lombok Regency, Aprian Firmansyah, Soeharto Soeharto

Jurnal Pendidikan Vokasi

This research aims to reveal the implementation of soft skills in the expertise program of automotive workshop at vocational high schools (VHS) in West Lombok Regency in terms of (1) student condition and practicum lesson planning, and (2) level of soft skills in automotive technology practicum of VHS students. This research is quantitative research with a descriptive approach. The research population is all state vocational high schools (SVHS) of light vehicle technology in West Lombok. The sample is four vocational high schools with 84 grade XII students and four teachers established using the purposive sampling technique. The research finding shows …

Work Ethics Profile Of Vocational College Students In Indonesia, Yohana Ika Harita Sari, Endang Soelistiyowati, Erlin Estiana Yuanti

Jurnal Pendidikan Vokasi

This study aims at describing the work ethics profile of Vocational College Students in Indonesia. Work ethics is an important indicator of human resources quality, and also an element of employability skills, that must be owned by students of Vocational College as working-age population. There are four main dimensions in work ethics: commitment, integrity, professional attitudes, and hard work. It is descriptive research on self-evaluation survey. It uses a Likert scale with five response options, ranging from 1 (never) to 5 (always). The respondents were determined using cluster sampling and convenience sampling. They are from four vocational colleges based on …

Developing Robot Transporter Learning Media To Learn Microcontroller, I Gusti Putu Asto Buditjahjanto, Chandra Ainur Rizqi, Bambang Suprianto

Jurnal Pendidikan Vokasi

Learning media play a role in bridging the interaction between the teacher and students. Using learning media can help students to understand the material delivered by the teacher more efficiently. Al Kholiliyah, a Vocational High School in Bangkalan, Indonesia, still lacks interactive learning media to motivate students in learning. The robot transporter as an interactive learning medium can be applied to solve the lack of learning media that engage students in learning. The purpose of this study is to analyze the validity of the robot transporter as learning media, to analyze the validity of the learning plan (a syllabus, a …

The Effectiveness Of The Application Of Articulate Storyline 3 Learning Object On Student Cognitive On Basic Computer System Courses, I Gede Partha Sindu, Gede Saindra Santyadiputra, Agus Aan Jiwa Permana

Jurnal Pendidikan Vokasi

This study aimed to determine the effectiveness of applying learning objects based on Articulate Storyline 3 on student cognitive competence in the Basic Computer System course in the Informatics Engineering Education Study Program at the Ganesha University of Education. This type of research was descriptive quantitative with a pre-experimental research design involving one experimental class. The populations used in this study were all semester 1 students of the Informatics Engineering Education study program in the Basic Computer Systems course in the odd semester of the 2020-2021 academic year. Random sampling was using a simple random sampling technique. The average pretest …

Developing Project-Based Learning Tools For Light Vehicle Engine Maintenance Subjects At Vocational High School, Muslim Muslim, Ambiyar Ambiyar, Dedi Setiawan, Rido Putra

Jurnal Pendidikan Vokasi

This study aims to develop learning tools for project-based light vehicle engine maintenance and describe the teacher's response to the application of project-based learning tools in light vehicle engine maintenance subjects. This research is a research and development (R&D) model with ADDIE. The ADDIE development model consists of analysis, design, development, implementation, and evaluation. The results showed that the product developed was valid in terms of validity, very practical in terms of practicality, and very high in the aspect of effectiveness. Based on the aspects of validity, it can be specified that the syllabus gets a percentage score of 90.25%, …

The Readiness Of Teacher Candidates For Vocational High School In The 4th Industrial Era Viewed From Teaching Skill And Capability In Technology, Susanti Susanti, Harti Harti, Vivi Pratiwi

Jurnal Pendidikan Vokasi

This study aims to evaluate the readiness of prospective teachers for Vocational High Schools in dealing with the world of work in the 4^th industrial era when viewed from teaching skills and technological mastery abilities. This study is evaluative research with a quantitative descriptive approach. The population in this study consisted of 1,725 students at Universitas Negeri Surabaya. A total of 996 students were used as research samples by using a simple purposive sampling technique. The results show that the average readiness in the aspects of teaching skills as much as 81.78% of students said they are ready, while …

The Implementation Of Block-System Learning On The Expertise Competence Of Automotive Lightweight Vehicle Engineering In Vocational High School, Nurul Burhan, Zainal Arifin

Jurnal Pendidikan Vokasi

The research concerned here was to discover (1) the effectiveness of block-system learning as viewed from the teacher aspect; (2) the effectiveness of such learning as viewed from the student aspect; (3) the effectiveness of such learning as viewed from the facility and resource aspect; and (4) the students' learning achievement after an application of such learning. The study is descriptive and quantitative research, using a survey approach. The data were compiled through observation, questionnaire use, and documentation. The results indicate that (1) the effectiveness of block-system learning as viewed from the teacher aspect is very high in scale; (2) …

Developing English Reading And Writing Materials For Automotive Engineering Program In Vocational High School, Endang Lestari, Joko Priyana

Jurnal Pendidikan Vokasi

The aims of this study are: (1) to identify the needs of grade 11 students of the Automotive Engineering Study Program in learning reading and writing, and (2) to develop appropriate English reading and writing learning materials. This is research and development that employed Jolly and Bolitho's model with some adaptation. The development procedure consists of conducting needs analysis, designing the syllabus, developing learning materials, expert judgment, conducting field testing, and materials evaluation. The research subject was 64 grade XI students of Light Vehicle Engineering or Teknik Kendaraan Ringan (TKR) at Vocational High School (VHS) AX. The needs analysis …