Digital Commons Network^™

Maximum Carbon Dioxide Capture, Sequestration And Maximum Carbon Dioxide Beneficial Reuse At The Optimal Cost Efficiency For The Power Generation Sector To Address Global Temperature Rise, Michael Dean Garcia

Theses and Dissertations

Global Climate Change is arguably one of the most important global crises of our times. Global Climate Change is the result of increasing global ambient temperatures around the world. These increased temperature changes have been impacting all aspects of human life and activity as wells as impacting all biological and physical systems of Earth. The primary cause of Global Climate Change are anthropogenic emissions of carbon dioxide and other Greenhouse Gases. Fossil fuel combustion is a primary source of these emissions. The initiation of anthropogenic Global Climate Change has been scientifically traced back to the Industrial Revolution. From the Industrial …

Photometric And Astrometric Analysis Of Three Near-Earth Asteroids, Steven D. Newcomb

Theses and Dissertations

Asteroid astrometry can provide precise information on an object’s orbital position and motion, while lightcurve photometry can help determine its rotational spin rate, its shape, and the possible presence of a binary satellite object in orbit around it.

This thesis therefore reports the astrometric and photometric study of three near-Earth objects (NEOs): 68347 (2001 KB67), 494999 (2010 JU39), and 455432 (2003 RP8). Because NEOs represent a record of the early solar system, serve as possible sources for minable material, and sometimes present an impact hazard to the planet Earth, the study of these asteroids is important for understanding their orbital …

An Evaluation Of Ci Asteroid Regolith As A Plant Growth Medium For Space Crop Production, Steven Jon Russell

Theses and Dissertations

Asteroids are small, undifferentiated bodies that materialized during the formation epoch of the solar system. With a concerted effort to establish a long-term presence in space, crewed missions to asteroids should not be ignored. A critical aspect of human missions is self-sustainability, primarily growing crops via in-situ resource utilization. CI carbonaceous asteroids are a primitive type of asteroid that retain elements found during that early solar system formation. More importantly, the regolith on these asteroids contains soluble elemental nutrients, such as phosphorous and potassium, that crops can use for growth and development. This thesis focuses on the ability of CI …

Reducing Produced Water Disposal Via Effective Treatments Methods And Re-Use: Proposed Sustainable Application For Bakken, North Dakota, Olusegun Stanley Tomomewo

Theses and Dissertations

It is true that the advancements in both the hydraulic frack and directional drilling technologies led to less time and a bit easier ways to develop unconventional oil and gas assets worldwide. In the Bakken North Dakota, the result of these breakthroughs and advancements in technologies are that they drastically reduce the time it takes to drill and complete a well leading to more wells (347 in 2004 to 16,300 in 2020). In 2019, the United States became the largest global crude oil producer, and the unconventional Bakken Play in North Dakota is one of the major contributors to this …

Safety Management System For Highway-Rail Grade Crossings, Amin Keramati

Transportation Logistics and Finance

As a result of the considerable differences in mass between vehicles and trains, accidences at highway-rail grade crossings (HRGCs) may result in severe injuries and fatalities. Therefore, HRGCs safety is considered one of the crucial transportation safety issues. Transportation decision makers and agencies need an efficient safety decision-making framework which is bale to consider crash occurrence and severity likelihood simultaneously. This study proposed a novel methodology and a statistical approach for HRGC crash analysis. The proposed method is competing risk model and the approach is Cox proportional hazard regression. This predictive method was well established in bioscience area but never …

Association Between Community-Based Self-Reported Covid-19 Symptoms And Social Deprivation Explored Using Symptom Tracker Apps: A Repeated Cross-Sectional Study In Northern Ireland, Jennifer M. Mckinley, David Cutting, Neil Anderson, Conor Graham, Brian Johnston, Ute Mueller, Peter M. Atkinson, Hugo Van Woerden, Declan T. Bradley, Frank Kee

Research outputs 2014 to 2021

Objectives: The aim of the study was to investigate the spatial and temporal relationships between the prevalence of COVID-19 symptoms in the community-level and area-level social deprivation. Design: Spatial mapping, generalised linear models, using time as a factor and spatial-lag models were used to explore the relationship between self-reported COVID-19 symptom prevalence as recorded through two smartphone symptom tracker apps and a range of socioeconomic factors using a repeated cross-sectional study design. Setting: In the community in Northern Ireland, UK. The analysis period included the earliest stages of non-pharmaceutical interventions and societal restrictions or 'lockdown' in 2020. Participants: Users of …

Effect Of Spectral Bandwidths On Linear Feature Extraction: An Evaluation Of Landsat Etm+ And Oli Sensors, Ali Imanian, Adel Asadi, Majid Hashemi Tangestani, Saeid Homayouni, Ali Faghih

Michigan Tech Publications, Part 1

Hitherto there have been many studies comparing the usefulness of OLI and ETM+ sensors for linear feature extraction. However, not too much attention has been paid to the differences in the bandwidth of the two sensors. In this study, the suitability of Landsat ETM+ and OLI sensors for automatic detection of linear features by LINE algorithm was compared. In this study, eight regions in northern, central and southern parts of Iran were selected based on the diversity of lithology, the pristine status, and lack of human activities for the comparison of the two datasets. Results revealed that LINE algorithm performed …

Risks To Healthcare Organizations And Staff Who Manage Obese (Bariatric) Patients And Use Of Obesity Data To Mitigate Risks: A Literature Review, Kim Mcclean, Martyn Cross, Sue Reed

Research outputs 2014 to 2021

This literature review explores obesity risks to healthcare staff and organizations that manage and caring for obese (bariatric) patients. These risks are anticipated to increase due to Australian population obesity rate projections increasing from 31% in 2018 to 42% by the year 2035, which will result in increased hospital admissions of patients with obesity. Literature searches were conducted through the Cumulative Index to Nursing and Allied Health Literature (CINAHL), MEDLINE, Scopus, and Web of Science. Thirty studies met the inclusion criteria and were tabulated and critiqued using appropriate appraisal techniques. High risk of injury to healthcare staff was identified relating …

Technology Singularity In Culture : The Urgency Of The Problem In The Covid-19 Pandemic, Tetiana Sovhyra

Journal of Urban Culture Research

In response to the global pandemic COVID–19, the possibility of organizing the artistic process without presence of a human being at the moment of the artifact’s manufacture is now being updated. This article discusses AI possibilities and prospects for the further development of technological art. The author explores the specifics and uniqueness of works created using AI technology. By the example of the paintings “Next Rembrandt” and “Kandinsky” it is evident that the images reproduce the creative styles of artists with exceptional accuracy, but are not a copy of famous works of art masters. The author finds out the possibilities …

Tourist’S Willingness To Pay For Urban Tourism : Determining The Factors Of Their Visit, Muhammad Hassan Mahboob, Muhammad Ashfaq, Asad Afzal Humayon, Kanwar Saleem Akhtar

Journal of Urban Culture Research

The basic purpose of this paper was to assess the visitor’s willingness to pay (WTP) and also explore the factors which play an important role for visit urban tourism (UT). The Lahore is the multicultural city of Pakistan which has many beneficial activities for entrepreneurs as well as for the tourists. Data of 250 tourists were collected through well pre paired questionnaire and this data were used in the final analysis. The most useful technique contingent valuation method (CVM) with dichotomous choice question (yes/no) was used to estimate the tourists’ WTP. Two models were used in the estimation one binary …

Preservation Of Heritage School Buildings In The Philippines : A Case Study Of The Gabaldon Buildings, Inero Ancho, Mark Ponce San Juan

Journal of Urban Culture Research

This research is an attempt to revisit the Philippines’ Gabaldon school buildings (GSB) in the light of Republic Act 11194. The research offers scrutiny of the law vis-a-vis prospects on practices of preserving and advocating the historical and cultural value of GSB. Using qualitative method of research, this study particularly employs content analysis of RA 11194. The discussion of this paper is clustered into two main sections: The narrative of GSB since its beginning, along with presenting notable details of select edifices which still serving the Philippine education system and an in-depth reading and analysis of RA 11194. It scrutinizes …

Measuring & Evaluating A Competitive & Smart Border Village In West Kalimantan Indonesia, Syaiful Muazir, Lestari -, Nurhamsyah Muhammad, Riha Alhamdani Muhammad

Journal of Urban Culture Research

Today, most of the border areas include categories of lagging areas with limited infrastructure and less competitiveness. To accelerate border village development, one of the concepts used is a smart village. The smart village concept and its application may increase regional competition. This paper aims to identify the conditions and indications of village competitiveness and the readiness to apply the smart concept. The research activities include the following: (1) scoring the village competitiveness (2) scoring the Information and Communication Technology - ICT literacy (3) exploration of trends in the use of technology, (4) proposed a strategy, and (5) simulate the …

Historical Western And Political Influences On The Architecture Of Thailand’S Chiang Mai Courthouses, Piyadech Arkarapotiwong

Journal of Urban Culture Research

The Chiang Mai courthouse is a significant building constructed in the Western architectural style. This research aims to investigate the origins of the Western-style design of this courthouse. The building features the triumphal arch element popular during the reign of King Rama VI (particularly in Bangkok). The architect who designed the building combined modern architecture with classical Western styles. The Chiang Mai courthouse came to represent the central government in Bangkok, whereby the building lost its connection with the traditional context of the Kingdom of Lanna, which ruled northern Thailand from the 13th to the 18th centuries. However, the building …

Futurism In Conceptual Textile Art : An Approach To Improving Sanitation In Ghana, William Badoe, Frederick Boamah

Journal of Urban Culture Research

Century old art movements have become relevant in modern art especially in conceptual art to address societal issues. Ghana is confronted with sanitation issues of which government interventions have proved futile in dealing with the situation. This art studio experimental study explored the philosophy concept of futurism through conceptual textile art towards sanitation improvement in Ghana. The Studio-Based research approach was employed with adoption of Aesthetico-Action Research model in generating the results. The results revealed that conceptual textile art could be used as a communicative tool through the concept of futurism as the driving force. The results proved the possibility …

Microstructure Evolution And Mechanical Property Response Of Tc11 Titanium Alloy Under Electroshock Treatment, Chang Liu, Lechun Xie, Dongsheng Qian, Lin Hua, Liqiang Wang, Lai-Chang Zhang

Research outputs 2014 to 2021

© 2020 The Authors This work investigated the effects of electroshock treatment (EST) on the microstructure variation and mechanical properties of TC11 alloy. The average hardness of the specimens decreased from 358 HV to 328 HV after EST of 0.04 s, then increased to 396 HV after EST of 0.06 s. After EST, the yield strength of specimen declined from 959 MPa to 797 MPa after EST of 0.04 s, and then increased to 1265 MPa after EST of 0.06 s, but the fracture strain decreased continuously. The variation in mechanical properties was closely related to the phase transition from …

Mental Health Consequences Of Covid-19 Media Coverage: The Need For Effective Crisis Communication Practices, Zhaohui Su, Dean Mcdonnell, Jun Wen, Metin Kozak, Jaffar Abbas, Sabina Šegalo, Xiaoshan Li, Junaid Ahmad, Ali Cheshmehzangi, Yuyang Cai, Ling Yang, Yu Tao Xiang

Research outputs 2014 to 2021

© 2021, The Author(s). During global pandemics, such as coronavirus disease 2019 (COVID-19), crisis communication is indispensable in dispelling fears, uncertainty, and unifying individuals worldwide in a collective fight against health threats. Inadequate crisis communication can bring dire personal and economic consequences. Mounting research shows that seemingly endless newsfeeds related to COVID-19 infection and death rates could considerably increase the risk of mental health problems. Unfortunately, media reports that include infodemics regarding the influence of COVID-19 on mental health may be a source of the adverse psychological effects on individuals. Owing partially to insufficient crisis communication practices, media and news …

Recent Progress Trend On Abrasive Waterjet Cutting Of Metallic Materials: A Review, Jennifer Milaor Llanto, Majid Tolouei-Rad, Ana Vafadar, Muhammad Aamir

Research outputs 2014 to 2021

Abrasive water jet machining has been extensively used for cutting various materials. In particular, it has been applied for difficult-to-cut materials, mostly metals, which are used in various manufacturing processes in the fabrication industry. Due to its vast applications, in-depth comprehension of the systems behind its cutting process is required to determine its effective usage. This paper presents a review of the progress in the recent trends regarding abrasive waterjet cutting application to extend the understanding of the significance of cutting process parameters. This review aims to append a substantial understanding of the recent improvement of abrasive waterjet machine process …

Employees’ Perceptions Of Corporate Social Responsibility And Ethical Leadership: Are They Uniquely Related To Turnover Intention?, Mehran Nejati, Michael E. Brown, Azadeh Shafaei, Pi-Shen Seet

Research outputs 2014 to 2021

© 2020, Emerald Publishing Limited. Purpose: The purpose of this study is to investigate the simultaneous effect of ethical leadership (EL) and corporate social responsibility (CSR) on employees’ turnover intention and examine the mediating mechanism in these relationships. Design/methodology/approach: The authors conducted a field study of 851 employees across a variety of industries. This study applied partial least squares structural equation modelling for hypothesis testing. Findings: The results show that employees’ perceptions of CSR as well as EL are both uniquely and negatively related to turnover intention. The authors also found that employees’ job satisfaction but not commitment, mediates these …

Protein Extraction Protocols For Optimal Proteome Measurement And Arginine Kinase Quantitation From Cricket Acheta Domesticus For Food Safety Assessment, Utpal Bose, James A. Broadbent, Angéla Juhász, Shaymaviswanathan Karnaneedi, Elecia B. Johnston, Sally Stockwell, Keren Byrne, Vachiranee Limviphuvadh, Sebastian Maurer-Stroh, Andreas L. Lopata, Michelle L. Colgrave

Research outputs 2014 to 2021

© 2021 Elsevier Ltd Insects have been consumed by people for millennia and have recently been proposed as a complementary, sustainable source of protein to feed the world's growing population. Insects and crustaceans both belong to the arthropod family. Crustacean (shellfish) allergies are common and potentially severe; hence, the cross-reactivity of the immune system with insect proteins is a potential health concern. Herein, LC-MS/MS was used to explore the proteome of whole, roasted whole and roasted powdered cricket products. Eight protein extraction protocols were compared using the total number of protein and distinct peptide identifications. Within these data, 20 putative …

Numerical Assessment Of The Overall Heat Transfer And Pressure Drop Performances Of An Aqueous Ammonia Base-Nanofluids In Rectangular Microchannel Heat Sinks, Ahmed Mohammed Adham, Hussein A. Mohammed

Research outputs 2014 to 2021

In this paper, the thermal and hydrodynamic performances of an aqueous ammonia base-nanofluid (Al2O3-NH3(aqu)) cooled in a rectangular microchannel heat sink was numerically investigated. The range of Reynolds number used in the investigation were between 140-1400. In order to assess the performance of the system during the employment of the proposed nanofluid, H2O and Al2O3-H2O were also tested and their performances were compared to Al2O3-NH3(aqu) performance in terms of thermal resistance and pressure drop. Results from the simulation showed that the proposed nanofluid outperformed pure water and slightly higher than Al2O3-H2O in terms of thermal resistance (for Re = 1400, …

The Cognitive Development Of Food Taste Perception In A Food Tourism Destination: A Gastrophysics Approach, Sangkyun (Sean) Kim, Eerang Park, Yi Fu, Fan Jiang

Research outputs 2014 to 2021

This study aims to explore the nature and processes involved in the cognitive development of food tourist's taste perception and identify cognitive factors influencing their food taste experience in the context of a food tourism destination. Adopting a gastrophysics approach, this exploratory qualitative research analyses food taste perceptions of Chinese domestic tourists during their visit to the Hangzhou Cuisine Museum and its associated restaurants. The findings suggest that prior knowledge formation as a manifestation of cognitive signs relating to Hangzhou cuisine and interpretive cognitive information acquired at the museum exhibition, greatly affect the tourists' local food taste experiences: these comprise …

Longitudinal Trajectories In Cortical Thickness And Volume Atrophy: Superior Cognitive Performance Does Not Protect Against Brain Atrophy In Older Adults, Samantha Gardener, Michael Weinborn, Hamid R. Sohrabi, James Doecke, Pierrick Bourgeat, Stephanie R. Rainey-Smith, Kai-Kai Shen, Jurgen Fripp, Kevin Taddei, Paul Maruff, Olivier Salvado, Greg Savage, David Ames, Colin L. Masters, Christopher C. Rowe, Ralph Martins, Aibl Research Group

Research outputs 2014 to 2021

Background:

Previous research has identified a small subgroup of older adults that maintain a high level of cognitive functioning well into advanced age. Investigation of those with superior cognitive performance (SCP) for their age is important, as age-related decline has previously been thought to be inevitable.

Objective:

Preservation of cortical thickness and volume was evaluated in 76 older adults with SCP and 100 typical older adults (TOAs) assessed up to five times over six years.

Methods:

Regions of interest (ROIs) found to have been associated with super-aging status (a construct similar to SCP status) in previous literature were investigated, followed …

Geochemical Study Of The Early Cretaceous Fahliyan Oil Reservoir In The Northwest Persian Gulf, Abbas Khaksar Manshad, Reza Sedighi Pashaki, Jagar A. Ali, Stefan Iglauer, M. Memariani, Majid Akbari, Alireza Keshavarz

Research outputs 2014 to 2021

Three crude oil samples from the Fahliyan Formation in ‘KG’ and ‘F’ fields in the northwest Persian Gulf, namely KG-031, F9A-3H and F15-3H for the geochemical study. In this study, the physicochemical properties, gas chromatography (GC, GC Mass) and (Detailed Hydrocarbon Analysis) DHA analyses for the collected Fahliyan oils were carried out. The API, Trace Element (Ni, V) and S% parameters indicated that the Fahliyan oil was generated from a source rock which deposited in reducing environment condition with a carbonate-shale compound lithology. Moreover, low pour point, higher S% and low viscosity parameters of “KG” sample confirmed the existence of …

Effects Of Shot Peening On Microstructure Evolution And Mechanical Properties Of Surface Nanocrystal Layer On Titanium Matrix Composite, Yan Wen, Yaya Wu, Lin Hua, Lechun Xie, Liqiang Wang, Lai-Chang Zhang, Weijie Lu

Research outputs 2014 to 2021

Shot peening (SP) was employed to modify the surface microstructure and mechanical properties of (TiB+TiC)/Ti-6Al-4V titanium matrix composite (TMC). And the microstructure evolution and mechanical properties were characterized and analyzed in detail. Transmission electron microscopy (TEM) results illustrated that the surface nanograins were introduced by the effect of SP and the hindering of reinforcements to the matrix deformation. The nanograins were formed near the reinforcement/matrix interface because the matrix was squeezed by both the shots and the reinforcements. Moreover, with increasing the volume fraction of reinforcements, the smaller nanograins were introduced near the interfaces due to the severe deformation between …

Experimental Validation Of Bulk-Graphene As A Thermoelectric Generator, Muhammad Uzair Khan, Amir Naveed, Syed Ehtisham Gillani, Dawar Awan, Muhammad Arif, Shaista Afridi, Muhammad Hamyun, Muhammad Asif, Saadia Tabassum, Muhammad Sadiq, Muhammad Lais, Muhammad Aslam, Saeed Ullah Jan, Zeeshan Ahad

Research outputs 2014 to 2021

Quest for alternate energy sources is the core of most of the research activities these days. No matter how small or large amount of energy can be produced by utilizing the non-conventional techniques and sources, every bit of innovation can reshape the future of energy. In this work, experimental analysis of the thermoelectric (TE) properties of bulk-graphene in the temperature range of (303 to 363) K is presented. Graphene powder was pressed to form a pellet which was used to fabricate the TE device. The effects of temperature on the Seebeck coefficient, electrical and thermal conductivities, and the dimensionless figure …

Deep Learning Control For Digital Feedback Systems: Improved Performance With Robustness Against Parameter Change, Nuha A. S. Alwan, Zahir M. Hussain

Research outputs 2014 to 2021

Training data for a deep learning (DL) neural network (NN) controller are obtained from the input and output signals of a conventional digital controller that is designed to provide the suitable control signal to a specified plant within a feedback digital control system. It is found that if the DL controller is sufficiently deep (four hidden layers), it can outperform the conventional controller in terms of settling time of the system output transient response to a unit-step reference signal. That is, the DL controller introduces a damping effect. Moreover, it does not need to be retrained to operate with a …

Covid-19 Disease Severity And Death In Relation To Vitamin D Status Among Sars-Cov-2-Positive Uae Residents, Habiba Alsafar, William B. Grant, Rafiq Hijazi, Maimunah Uddin, Nawal Alkaabi, Guan Tay, Bassam Mahboub, Fatme Al Anouti

Research outputs 2014 to 2021

Insufficient blood levels of the neurohormone vitamin D are associated with increased risk of COVID-19 severity and mortality. Despite the global rollout of vaccinations and promising preliminary results, the focus remains on additional preventive measures to manage COVID-19. Results conflict on vitamin D’s plausible role in preventing and treating COVID-19. We examined the relation between vitamin D status and COVID-19 severity and mortality among the multiethnic population of the United Arab Emirates. Our observational study used data for 522 participants who tested positive for SARS-CoV-2 at one of the main hospitals in Abu Dhabi and Dubai. Only 464 of those …

Australian Postgraduate Student Experiences And Anticipated Employability: A National Study From The Students’ Perspective, Elizabeth J. Cook, Linda Crane, Shelley Kinash, Amy Bannatyne, Joseph Crawford, Gary Hamlin, Madelaine-Marie Judd, Jo-Anne Kelder, Helen Partridge, Sarah Richardson

Research outputs 2014 to 2021

Postgraduate students are navigating a rapidly evolving landscape for their future careers. In this context, higher education providers are responsible for supporting and monitoring postgraduate (masters and doctoral) students’ development for both education and employability contexts. This empirical research provides a rich analysis of feedback breakfasts, focus groups and interviews with 319 postgraduate student participants from 26 universities. Emergent themes highlight widespread lack of confidence in university-mediated student experiences, particularly in the context of employability, and pessimism regarding career outcomes. Students expressed a view that higher education providers need to direct further attention and relevant supports toward postgraduate education. Future …

Evaluation Of Work-Integrated Learning: A Realist Synthesis And Toolkit To Enhance University Evaluative Practices, Elizabeth J. Cook

Research outputs 2014 to 2021

Situated in the context of work-integrated learning (WIL), this paper aims to build the evaluative capacity of universities in response to an increasing need for evaluation in higher education. It contributes a realist synthesis of international peer-reviewed literature on university evaluation of WIL, which revealed no use of evaluation theory or approaches by the authors. In response, to support the enhancement of university evaluative practices, this paper offers a toolkit of evaluation theory and approaches, with examples relating to WIL, featuring an evaluation planning tool (RUFDATAE). RUFDATAE is demonstrated using a study from the realist synthesis, to highlight its relevance, …

Drastic Enhancement Of Co2 Adsorption Capacity By Negatively Charged Sub-Bituminous Coal, Hussein R. Abid, Stefan Iglauer, Ahmed Al-Yaseri, Alireza Keshavarz

Research outputs 2014 to 2021

Climate change is a key problem of the 21st century. Climate change is mainly caused by anthropogenic CO₂ emissions, and one solution to this problem is to capture and store CO₂ in deep coal seams, where it is immobilized by adsorption to the coal surface. Here we propose to modify the coal with methyl orange (MO), a typical dye that is also a major pollutant of the hydrosphere and removed thereby. Thus, raw and MO-modified coals were characterized to investigate their thermal stabilities, textural properties, carbon contents, surface characteristics, and CO₂ adsorption on the coal samples was …