Digital Commons Network^™

Leadership Doctorates Newsletter: Volume 6, Number 5 (Special Issue), Larry Starr, Phd

Leadership Doctorates Newsletter (Formerly Strategic Leadership Newsletter)

In this Issue:

• 2020 Reflections

Accelerating Transitive Closure Of Large-Scale Sparse Graphs, Sanyamee Milindkumar Patel

Theses

Finding the transitive closure of a graph is a fundamental graph problem where another graph is obtained in which an edge exists between two nodes if and only if there is a path in our graph from one node to the other. The reachability matrix of a graph is its transitive closure. This thesis describes a novel approach that uses anti-sections to obtain the transitive closure of a graph. It also examines its advantages when implemented in parallel on a CPU using the Hornet graph data structure.

Graph representations of real-world systems are typically sparse in nature due to lesser …

Cycloidal-Drive Joint Design For Wearable Exoskeletons, Abhi J. Rawal

Theses

This thesis's scope was to construct a highly back drivable and compact joint design that can be used for wearable exoskeletons specifically designed to assist with rehabilitation. A compact cycloidal gear transmission was designed to satisfy the compactness requirement while ensuring the minimum torque is required for backdriving the mechanism. The joint was designed based on the compact cycloidal drive specifications, and the backdrivability test was performed to measure the minimum torque required (1.20 Nm) to backdrive. The joint design incorporates various important features such as rotation lock feature to prevent hyperextension, a housing design that offers the benefit of …

Human Activity Recognition Using Wearable Sensors: A Deep Learning Approach, Jialun Xue

Theses

In the past decades, Human Activity Recognition (HAR) grabbed considerable research attentions from a wide range of pattern recognition and human–computer interaction researchers due to its prominent applications such as smart home health care. The wealth of information requires efficient classification and analysis methods. Deep learning represents a promising technique for large-scale data analytics. There are various ways of using different sensors for human activity recognition in a smartly controlled environment. Among them, physical human activity recognition through wearable sensors provides valuable information about an individual’s degree of functional ability and lifestyle. There is abundant research that works upon real …

Possibilities And Challenges Of Radio Frequency Energy Harvesting In Dar Es Salaam, Tanzania, Fredrick Isingo

Tanzania Journal of Engineering and Technology (TJET)

This paper presents investigation on the possibilities and challenges of harvesting ambient Radio Frequency Energy (RFE) at Dar es Salaam region in Tanzania. The Radio Frequency (RF) signals were measured using a Rohde and Schwarz FSC 3 spectrum analyzer observing available frequencies with their respective power. Among several RF signals received, the most powerful signals observed were; 800 MHz, 950 MHz, 2100 MHz and 2400 MHz, having average signal strengths of about-30.29 dBm,-35.94 dBm,-42.90 dBm and-30.42 dBm respectively. The power possessed within these frequencies were suitable to be harvested due to their signal strengths, an overall power average of-34.89dBm was …

Direct Predictive Speed Control Of Salient Pmsm Drives In Constant Torque And Constant Power Regimes For Electric Vehicles Applications, Francis Mwasilu

Tanzania Journal of Engineering and Technology (TJET)

A direct speed control of salient permanent magnet synchronous motor (PMSM) drives in constant torque and constant power regimes for electric vehicles applications is presented. The proposed speed control scheme is derived from model predictive control approach where both rotor speed and stator current are formulated in a single objective function that is periodically computed to attain the PMSM drive optimum switching states. The dynamic model of the PMSM intrinsically encompasses the unknown disturbance, which should be rejected for high-performance speed control especially in transient conditions. Consequently, the extended modified augmented state Kalman filter (ASKF) is incorporated in the proposed …

Effects Of Calcination Temperature Of Naturally Occurring Absorbents On Drinking Water Defluoridation, Brenda Mndolwa

Tanzania Journal of Engineering and Technology (TJET)

Currently, in Tanzania, fluoride removal from drinking water is treated mostly using the bone char method. The method has poor acceptability in some religious communities and also causes water quality deterioration in taste and odour if the bones are not properly prepared. The use of local natural adsorbents as an alternative is feasible with limitations of high levels of other impurities in treated water. Locally available gypsum, magnesite and bauxite were converted to adsorbents through calcination. The study was conducted to determine the removal efficiency, best calcination temperature and composite ratio of the three adsorbents for the removal of fluoride …

User-Centred Scalable Big Data Visualizer For Power Consumption Data In The Electrical Secondary Distribution Network, Ellen Kalinga

Tanzania Journal of Engineering and Technology (TJET)

Establishment of Smart Grids for electrical power has been practised worldwide for the purpose of bringing reliability, security, and efficient management of electrical power networks for enhancing quality service to the society. Apart from the potential aim, smart grid has been a challenge to developing countries, including Tanzania from cost and technology point of view. Due to the use of many smart equipment involved in smart grids like Advanced Metering Infrastructure (AMI) equipped with smart meters and sensors, handling and managing big data has been a challenge. Among the challenges is the issue of visualizing the Big Data due to …

The Eighth Report Of The Congressional Oversight Commission, United States: Congressional Oversight Commission

Documents

No abstract provided.

The Legacy Of Racism And Covid-19, Adedayo Okanlawon

MEDI 9331 Scholarly Activities Clinical Years

This perspective piece discusses the interplay between Covid-19, the legacy of racism in America, and their synergistic effects on the black community. Personal racially charged experiences in conjunction with notable stories of injustice in medicine are used to set the stage. The pandemic's disparate impact on black communities are then discussed with suggestion on how to mitigate these issues.

Research On Weather Conditions And Their Relationship To Crashes, Mark R. Anderson, Aemal Khattak, Muhammad Umer Farooq, John Cecava, Curtis L. Walker

Nebraska Department of Transportation: Research Reports

The objectives of the research were to conduct a seasonal investigation of when winter weather conditions are a factor in crashes reported in Nebraska, to perform statistical analyses on Nebraska crash and meteorological data and identify weather conditions causing the significant safety concerns, and to investigate whether knowing the snowfall amount and/or storm intensity/severity could be a precursor to the number and severity of crashes.

Nebraska Department of Transportation (NDOT) crash data were combined with meteorological data on winter weather season basis, reported road surface condition at crash time, and reported weather conditions at crash time. Overall, the key finding …

Nebraska Rail Crossing Safety Research, Aemal Khattak, Yashu Kang, Huiyuan Liu

Nebraska Department of Transportation: Research Reports

The research objectives of this project were to update Nebraska Department of Transportation (NDOT) 1999 Nebraska Accident Prediction Model for Highway-Rail Grade Crossings (HRGCs) and to develop guidelines using Lancaster County Nebraska HRGCs for improving safety at urban gated HRGCs that are not designated quiet zones but are in the vicinity of quiet zone crossings.

FRA crash and HRGC inventory data were utilized for estimation of the new model after inventory information on 742 HRGCs was updated. HRGC crashes for 2008-2018 period were used for model estimation while 2019 HRGC crashes were used for model prediction validation. After consideration of …

To Automate Detecting, Quantifying And Mapping Of Delamination Via Arial Thermography, Ziqi Shen, Chongsheng Cheng, Ri Na, Zhexiong Shang

Nebraska Department of Transportation: Research Reports

The goal of this project is to develop a UAV-based Arial thermographic method to detect and map the delamination on concrete bridge decks. Several image processing methods such as level-set and machine-learning were developed in this project. The developed method is high-efficient and low-cost and requires no-traffic-closure during the surveying process. The coring outcomes from four different concrete bride decks validated the performance of this developed method. The coring results suggested that this method outperformed several existing methods in detecting delamination in concrete bridge decks in terms of efficiency, accuracy, cost, and safety.

High-Mast Tower Foundation, Chungwook Sim, Chung R. Song, Brandon Kreiling, Jay Puckett

Nebraska Department of Transportation: Research Reports

High-Mast Tower (HMT) foundations have been traditionally designed and constructed using cast-in-place foundation with anchor bolts that are used to secure the tower to the foundation. This type of design requires a base plate that is welded to the tower shaft. The Nebraska Department of Transportation (NDOT) has recently experienced issues with stresses that this type of design presents at the anchor bolt/foundation or base plate/tower shaft interface. This issue in worst cases may lead to a premature failure due to high-cycle fatigue as one of the towers at Milford, Nebraska that fell down during a winter snow storm event …

Inclusive And Implementable Legal Rules For E-Commerce: A Comparative Study Of Indonesia And Vietnam, Ngoc Nguyen Thi Bich, Phan Quoc Nguyen

Indonesia Law Review

Both Vietnam and Indonesia have large populations that promise major markets for e-commerce. The two nations record high internet coverage and large numbers of social media users. Recently, the countries have been trying to support e-commerce with new legal rules. In November 2019, Indonesia’s government introduced Government Regulation No. 80 of 2019 on Trading through Electronic Systems (GR 80, 2019). GR 80 requires e-commerce businesses to obtain business licenses, report taxes, and preserve consumer protections and rights. Similarly, Vietnam has issued a number of resolutions and guidelines since its Decree on E-Commerce in 2013 (Decree No. 52/2013/NĐ-CP). While these legal …

The Law Of Arbitration Rules That Are Final And Binding, Heru Sugiyono, Heru Suyanto, Rosalia Dika Agustanti

Indonesia Law Review

A request in a district court for annulment of an arbitration, or arbitral, award is a form of legal remedy that claims dissatisfaction with the award by one or more parties. It contravenes the provisions that stipulate the finality of the award and its permanently binding legal force. The attempt to invalidate the arbitral award seems to reflect the party’s (or parties’) disobedience to it. The research method here employed normative juridical review of various library materials consisting of primary legal sources from related laws and regulations, secondary materials which formed the explanations used in the analysis of the primary …

Development Of A Physics Module On Work And Energy Based On Stem Education For Vocational High School Students, Ratika Sekar Ajeng Ananingtyas

Jurnal Pendidikan Sains

The need for human resources who have knowledge and skills in the STEM fields is getting bigger. However, from the results of research by PISA, Indonesian students' scores in science, reading, and mathematics were still low. This research was conducted to develop a physics module based on STEM education for vocational high school students and to test it’s feasibility. This research adapted the Dick and Carey development research design. The data were obtained from questionnaires about the feasibility and were analyzed qualitatively and quantitatively. From the results of the validation and feasibility test, the module was very feasible to use.

Fatigue Crack Growth And Fatigue Fracture Morphology Of Recycled Rubber Powder Filled Nr/Br Blend Compound, Ismawi Hassim Dh Abang, Frank Abraham, John Summerscales

School of Engineering, Computing and Mathematics

The effect of two different types and particle sizes (micronised cryo-ground 74 m or ambient ground 400 m) of recycled rubber powder (RRP) were studied during fatigue crack growth (FCG) in NR/BR compound using a fracture mechanics approach. Absolute and relative hysteresis losses using single-edge notch tensile (SENT) specimens were determined with a displacement controlled strain compensating for permanent set of the samples throughout the FCG experiments. Differences in relative hysteresis loss showed that additional energy dissipation, due to multiple new crack surfaces at the crack tip, contributes to the FCG of the RRP compounds. At higher tearing energy, beside …

Indonesia's Involvement In The Afghanistan Peacebuilding Process, Fabian Nur Farizan, Dudy Heryadi

Global: Jurnal Politik Internasional

This article aims to understand and analyse Indonesia's involvement in ensuring peace, especially in peacebuilding efforts in Afghanistan. Indonesia’s commitment to improve its peace efforts in Afghanistan was expressed by President Joko Widodo during his visit to Kabul in 2018. This research used Lederach’s pyramid model of peacebuilding as the primary analysis tool. Lederach’s pyramid model identifies three approaches to peacebuilding, along with the main actors in the population affected by the conflict—namely top leadership, middle range leadership, and grass-root leadership. The results of the study show that Indonesia's involvement in Afghanistan in peace efforts has been carried out at …

Feedback-Guided Analysis As An Approach To Managing Sustainability In Asean Countries, Maria Assunta C. Cuyegkeng, Charlotte Kendra Gotangco Gonzales

Journal of Management for Global Sustainability

Innovation has been at the center of most science policies of the ASEAN countries, driven as they are by a greater concern for the competitive advantages that can come from science and technology. Related to these policies, although often treated separately, are policies on the environment and environmental education. What is missing, however, is a more comprehensive view of how both science and environmental policies influence and are influenced by the culture and well-being of the people in a particular country. This study attempts to fill in the blanks through feedback-guided analysis, particularly by using a cultural adaptation template introduced …

Benefits From Laguna Lake: Perspective Of Small Fisher Households, Rosalina Palanca-Tan

Journal of Management for Global Sustainability

Fishing is considered to be the most important among the many uses of Laguna Lake, the largest lake in the Philippines and second largest in Southeast Asia. Using primary data gathered through focus group discussions, key informant interviews, and a household survey together with secondary data on revenue and cost estimates for aquaculture and catch fisheries, this paper discusses the lake’s role in the economic life of two fishing communities located along the shoreline. The study, which uses a microscopic lens to look at issues from the perspective of small fisher households instead of from that of policymakers and non-government …

The Role Of National Culture In The Relationship Between Sustainability Practices And Sustainability Performance, Cristina Sancha, Annachiara Longoni, Cristina Giménez

Journal of Management for Global Sustainability

This paper aims to examine the role of national culture in the relationship between sustainability practices (social and environmental practices) and sustainability performance (social and environmental performance). While previous literature has focused on the influence of national culture on the decision-making and ethical behaviors of managers, the role of national culture on the effectiveness of sustainability practices has been rather neglected. Our study addresses this gap by highlighting the relevance of national culture as a contextual element when implementing sustainability practices in different countries. Based on a multi-level regression analysis using data from 484 firms in nine countries (China, Germany, …

The Study Of Correlation Between Heavy Metal Levels In Environment And Autism Case In Samarinda And Bantul, Andi Sofyan Hasdam, Hasim, Ahmad Sulaeman, Moh. Hasan Machfoed

Media Kesehatan Masyarakat Indonesia

Autism is a disorder of pervasive development in children, which until now,
the exact cause is unknown. The strongest allegations are genetic and
environmental factors, especially heavy metals. This study aims to look the
relationship between the occurrence of heavy metals pollution with the
autism cases in Samarinda and Bantul. This study was carried out by
measuring the levels of heavy metals in fish, vegetables, water and soil and
also hair of 30 autistic children and 10 control children in Samarinda and 30
autism 4 control in Bantul.All samples were measured their heavy metal
content (As, Hg, Cd, Pb) at …

Enhancing Bim Implementation In The Ethiopian Public Construction Sector: An Empirical Study, Solomon Belay, James D. Goedert, Asregedew Woldesenbet, Saeed Rokooei3

Durham School of Architectural Engineering and Construction: Faculty Publications

Recently, the popularity of BIM has grown rapidly in the public construction sector. However, only a few studies so far have been seeking to address the BIM adoption benefits and barriers in developmental public projects across the low-income countries. Thus, the study aims to investigate the benefits and barriers of BIM adoption in the context of the Ethiopian infrastructure market. To achieve the objectives, a comprehensive systematic literature review was conducted to identify BIM adoption benefits and barriers in developing countries. Then, a structured questionnaire survey was conducted to collect data from various professionals working in organizations including client, consultant, …

Automatic Chain Cleaner, Daniel Cherenson, Rudy Lawler, Darius Rucker

Mechanical Engineering and Materials Science Independent Study

The Automatic Chain Cleaner (ACC) is a battery-powered tool that clamps onto a bicycle frame and encloses the chain while cleaning it with brushes and degreaser and/or water. The batteries power a motor that drives the chain in the reverse direction from normal bicycle use. Clamps stabilize the tool and provide a consistent and stable cleaning job. This project aims to replace the manual versions of thistool which suffer from lack of stability and a poor user experience. Ease of use and reliability are important requirements for this project. The ACC will take 4 AA batteries and will run smoothly …

Bibliometric Analysis Of Chemistry Nobel Laureate George Pearson Smith, Abhay Maurya

Library Philosophy and Practice (e-journal)

The scientometric analysis of Nobel Laureate George P. Smith, who had been awarded the Nobel Prize in chemistry in 2018, reveals that the author has published 55 papers in various fields between 1971 and 2019. The subjects included 26 articles in Biomolecular Interactions, 17 papers in Genomics, 10 in Protein, and 2 in Evolutionary Biology. The forms of publications included 45 article papers, 1 book chapter, 2 editorials, 6 reviews, and 1 short survey. 17 of his publications were single-authored, 18 two authored, 9 three and four authored, and 1 five and six authored. The highest no papers were published …

Relevance Of Availability Of Information Resource Centres On Rural Development In Akure North Local Government Of Nigeria, Adewusi Akinola, Felix Akinola Adewusi Mr

Library Philosophy and Practice (e-journal)

Abstract

This study attempts to x-ray relevance of availability of information resource centres on rural development in Akure North Local Government, Ondo State, Nigeria. The study reveals that information resource centres are not available in the communities under the local government. The essence of rural development, appraisal of various initiatives in Nigeria, information needs of rural dwellers and information resource centre were discussed in the study. The need for provision of information resource centres in rural communities was also discussed. It is revealed that with valuable up-to-date information resources in the centres it would empower and enable the people irrespective …

Research Productivity Of Chemistry Department, Tezpur University: A Scientometric Study, Nayana Borah Research Scholar

Library Philosophy and Practice (e-journal)

The purpose of the study is to evaluate the research publication of Chemistry department, Tezpur University. The SCOPUS database has been used to extract the data published during 2000 to 2020. The retrieved data has been analyzed on the following parameters; year-wise distribution of publication, form-wise distribution, authorship pattern, degree of collaboration, most productive authors, collaborative institution and preferred source for publication. A total of 1148 records have been retrieved and MS Excel is used to analyze the data. During the time period, the highest number of publication was in 2014, 95.56% of the publication were published in the form …

Investigasi Literasi Spasial: Studi Kasus Pada Siswa Auditori, Itsna Lailatul Mas’Udah, Sudirman Sudirman, Hery Susanto, Imam Rofiki

Jurnal Pendidikan Sains

Spatial literacy is one's understanding of spatial objects and relationships. Spatial literacy has visualization, reasoning, and communication domains. Learning style is one of the factors causing differences in students' spatial literacy. This study tries to investigate the spatial literacy of auditory students in solving spatial geometry problems. This type of research is a case study in one student of class XI MIPA-1 SMA Negeri 1 Taman Sidoarjo with a qualitative approach. The results of this study indicate that for each problem-solving step, students differ in achieving the indicators in each domain of spatial literacy. The student achieves all indicators in …

Potential Of Jamu In Nanotechnology Perspective As An Alternative Treatment For Covid-19, Dhadhang Wahyu Kurniawan, Azis Ikhsanudin

Pharmaceutical Sciences and Research

The world seems to be recovering at this time, especially because of the 2019 global coronavirus disease pandemic (COVID-19) caused by the Coronavirus 2 virus (SARS-CoV-2). This virus is similar to other β-coronaviruses through several steps to enter and bind angiotensin-converting enzyme 2 (ACE2) as the main receptor. This binding, particularly in the respiratory epithelium and alveoli of the lungs, affects harmony in human host cells. No specific vaccines and antivirals are available to date as drug investigations are still ongoing. However, many Indonesians consume herbal medicine, especially 'empon-empon' containing the Zingiberaceae family, to protect their health from COVID-19. So …