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Articles 61 - 75 of 75
Full-Text Articles in Engineering
2020-2021 Annual Security And Fire Report - Sayre Campus, Southwestern Oklahoma State University
2020-2021 Annual Security And Fire Report - Sayre Campus, Southwestern Oklahoma State University
ANNUAL SECURITY & FIRE REPORTS
This is the 2020-2021 Annual Security and Fire Report of the Sayre Campus by Southwestern Oklahoma State University.
2020-2021 Annual Security And Fire Report - Weatherford Campus, Southwestern Oklahoma State University
2020-2021 Annual Security And Fire Report - Weatherford Campus, Southwestern Oklahoma State University
ANNUAL SECURITY & FIRE REPORTS
This is the 2020-2021 Annual Security and Fire Report of the Sayre Campus by Southwestern Oklahoma State University.
Influence Of The Inherent Safety Principles On Quantitative Risk In Process Industry: Application Of Genetic Algorithm Process Optimization (Gapo), Mehdi Jahangiri, Abolfazl Moghadasi, Mojtaba Kamalinia, Farid Sadeghianjahromi, Sean Banaee
Influence Of The Inherent Safety Principles On Quantitative Risk In Process Industry: Application Of Genetic Algorithm Process Optimization (Gapo), Mehdi Jahangiri, Abolfazl Moghadasi, Mojtaba Kamalinia, Farid Sadeghianjahromi, Sean Banaee
Community & Environmental Health Faculty Publications
Inherent safety (IS) refers to a set of measures that enhance the safety level of processes and equipment, rendering additional equipment and/or add-ons. The early design phase of processes is suited best for implementation of IS strategies as some of such strategies either are impossible to be implemented at the operation phase or substantially increase costs. The purpose of this study is to present a new approach called genetic algorithm process optimization (GAPO), by which processes can be made inherently safer even at the operation phase. This study simulates the IS principle, assessing its impact on quantitative risk and the …
Investigation Of Copper And Zinc Contaminations In Bioponic Systems Using Chicken Manure Fertilizer, Satja Aksorn
Investigation Of Copper And Zinc Contaminations In Bioponic Systems Using Chicken Manure Fertilizer, Satja Aksorn
Chulalongkorn University Theses and Dissertations (Chula ETD)
The bioponic system is a system that utilizes biological waste as a nutrient-rich source such as chicken manure fertilizer for plant growth integrated with aquaponic. At present, chicken manure fertilizer is contaminated with Cu and Zn may have the potential health effects through vegetable consumption. The objective of this study was to evaluate nitrogen transformation, nitrogen recovery, and plant growth in chicken manure-based bioponics at Cu (50–150 mg/kg) and Zn (200–600 mg/kg) supplementation and investigate the effects of Cu and Zn supplementations on plant bioaccumulation, root microbial community, and dietary health risk. Cu and Zn concentrations were analyzed using inductively …
Assessments Of Chromium Pollution In Surface Sediment Of The Inner Gulf Of Thailand, Patcha Leelakun
Assessments Of Chromium Pollution In Surface Sediment Of The Inner Gulf Of Thailand, Patcha Leelakun
Chulalongkorn University Theses and Dissertations (Chula ETD)
The inner Gulf of Thailand is an important marine resource for economic and social developments of Thailand. Moreover, the inner Gulf of Thailand is a diverse of biological coastal ecosystem, which is make an equilibrium marine environment. On the other hand, this area is due mainly to a variety of pollutant sources from the surface runoff, particularly major large rivers including the Mae Klong, the Tha Chin, the Chao Phraya and the Bangpakong Rivers. As a result, chromium contamination can occur in the inner Gulf of Thailand and ultimately become a serious environmental issue in Thailand. Therefore, the surface sediments …
Evaluation Of Cadmium Bioaccumulations In Pak Choi Grown By Hydroponics System, Piyachet Jinsart
Evaluation Of Cadmium Bioaccumulations In Pak Choi Grown By Hydroponics System, Piyachet Jinsart
Chulalongkorn University Theses and Dissertations (Chula ETD)
Cadmium is one of the most harmful heavy metals reported to contaminate the food chain and pose a high risk for health, including non-carcinogenic and carcinogenic effects. High levels of cadmium contamination due to industrial effluent discharge have been reported to affect plant growth and productivity, which could be used as a bio-indicator for cadmium bioaccumulation in plants. The utilization of cadmium-contaminated water for vegetable production has been known to increase the health risk for human consumption. Moreover, pH level was known as a factor affecting cadmium solubility and cadmium uptake by plants. However, there is still unknown about critical …
A Development Of Disaster Risk Profile In Public Healthcare System During Flood Situation : A Case Study Of Nakhon Sawan City Municipality, Nakhon Sawan Province, Thailand, Kodchakorn Krutphong
A Development Of Disaster Risk Profile In Public Healthcare System During Flood Situation : A Case Study Of Nakhon Sawan City Municipality, Nakhon Sawan Province, Thailand, Kodchakorn Krutphong
Chulalongkorn University Theses and Dissertations (Chula ETD)
This research begins with the idea of the disaster risk assessment included in the disaster management’s well recognized international framework, the Sendai Framework for Disaster Risk Reduction. Then, the idea settles from the risk assessment concept combined with the emergency management knowledge that has the critical infrastructure topic, including the public healthcare system. The flood disaster is the kind of disaster that frequently occurs in Thailand and the study area, Nakhon Sawan City Municipality. Thus, this research aims to study disaster risk profiles in the public healthcare system in a specific local area. The outcome from this research is the …
Open Voting Client Architecture And Op-Ed Voting: A Novel Framework For Solving Requirement Conflicts In Secret Ballot Elections, Aaron M. Wilson
Open Voting Client Architecture And Op-Ed Voting: A Novel Framework For Solving Requirement Conflicts In Secret Ballot Elections, Aaron M. Wilson
UNF Graduate Theses and Dissertations
Building voting systems for secret ballot elections has many challenges and is the subject of significant academic research efforts. These challenges come from conflicting requirements. In this paper, we introduce a novel architectural approach to voting system construction that may help satisfy conflicting requirements and increase voter satisfaction. Our design, called Open Voting Client Architecture, defines a voting system architectural approach that can harness the power of individualized voting clients. In this work, we contribute a voting system reference architecture to depict the current voting system construction and then use it to define Open Voting Client Architecture. We then detail …
Influence Of Seasonal Variations On Contamination Level And Ecological Risk Of Heavy Metals In The Surface Sediments Of The Inner Gulf Of Thailand, Phuttiphat Lapat-Atiwat
Influence Of Seasonal Variations On Contamination Level And Ecological Risk Of Heavy Metals In The Surface Sediments Of The Inner Gulf Of Thailand, Phuttiphat Lapat-Atiwat
Chulalongkorn University Theses and Dissertations (Chula ETD)
The Inner Gulf of Thailand is a marine resource that provides ecological and economic value. Meanwhile, its can be acted like pollutions sink, especially heavy metals. After that, the extensions of industrialization, agriculturalization, and urbanization can degenerate to the inner Gulf environment quality. Therefore, this thesis was aimed to study the spatial distribution and seasonal variation of heavy metal concentration (Cd, Pb, Cu, Co, Ni, Mn and Zn) in surface sediment including the Mae Klong, the Tha Chin, the Chao Phraya and the Bangpakong River estuaries. Moreover, the contamination status and ecological risk were also evaluated. The results shown the …
Identifying Scotomata In Hazard Identification Caused By Ignorance And Overconfidence, Allen Johanson
Identifying Scotomata In Hazard Identification Caused By Ignorance And Overconfidence, Allen Johanson
Masters Theses
The manufacturing and construction industries are two of the most dangerous professions, and employees are frequently exposed to hazards and hazardous conditions which can lead to serious injury or even death. An observed phenomenon, frequently called the Dunning-Kruger Effect states that unskilled people are often unaware of their shortcomings and those with the higher-level skills often underestimate their abilities. This study examines employees’ training, years of experience, and performance to gauge any correlations among these variables in the area of hazard awareness. The goal of this study is to help individuals to recognize blind spots in their knowledge to identify …
Health Risk Assessment For Heavy Metals In Chao Phraya River Basin, Natthanicha Nateekhuncharoen
Health Risk Assessment For Heavy Metals In Chao Phraya River Basin, Natthanicha Nateekhuncharoen
Chulalongkorn University Theses and Dissertations (Chula ETD)
Heavy metal contamination has become a serious concern due to its toxicity not only on ecosystems but also directly on human health. The Chao Phraya River Basin is the main area important for commerce, industries, and residence in Thailand. This study aimed to evaluate the impact on human health due to heavy metal contamination and identify the relationship between land use and heavy metal contamination in the Chao Phraya River. Pearson correlation was applied to analyze the relationship between heavy metal concentration and water parameters. The results indicated that during 2009-2013, Fe concentration positively correlated to turbidity (0.640), total phosphate …
การประเมินความเสี่ยงทางสุขภาพของพนักงานที่สัมผัสฝุ่นและโลหะหนักในโรงงานกำจัดกากอุตสาหกรรม, ประหยัด เคนโยธา
การประเมินความเสี่ยงทางสุขภาพของพนักงานที่สัมผัสฝุ่นและโลหะหนักในโรงงานกำจัดกากอุตสาหกรรม, ประหยัด เคนโยธา
Chulalongkorn University Theses and Dissertations (Chula ETD)
พนักงานในโรงงานกำจัดกากอุตสาหกรรมทั้งสองแห่งได้รับสัมผัสมลภาวะต่างๆ เช่น ฝุ่นละออง (PM; PM2.5 และ PM10-2.5) และโลหะหนักที่ปนเปื้อนในกระบวนการกำจัดขยะ การวิจัยนี้เพื่อศึกษาความเสี่ยงทางสุขภาพของพนักงานที่สัมผัสฝุ่นและโลหะหนักในสถานที่ทำงาน พบฝุ่นขนาด PM2.5 มีความเข้มข้นในตัวอย่างที่เก็บแบบพื้นที่ (30.33±2.51 และ 41.21±1.12 µg/m3) เก็บแบบบุคคล (45.86±9.85 และ 144.99±119.11 µg/m3) และฝุ่นขนาด PM10-2.5 ในตัวอย่างที่เก็บแบบพื้นที่ (14.77±0.29 และ 15.09±0.35 µg/m3) เก็บแบบบุคคล (27.73±8.63 และ 48.04±43.49 µg/m3) ในโรงงาน 1 และ 2 ตามลำดับ ความเข้มข้นของโละหนัก As, Cd, และ Pb ในตัวอย่างฝุ่นโรงงาน 1 ที่เก็บตัวอย่างแบบพื้นที่มีค่า 1.19±0.09, 0.55±0.05 และ 0.78±0.14 µg/m3, เก็บแบบบุคคลมีค่า 1.22±0.08, 0.55±0.08, และ 0.87±0.12 µg/m3 ตามลำดับ ในโรงงาน 2 ที่เก็บตัวอย่างแบบพื้นที่มีค่า 0.52±0.21, 0.55±0.05 และ 0.38±0.05 µg/m3 เก็บแบบบุคคลมีค่า 0.58±0.13, 0.53±0.06 และ 0.41±0.05 µg/m3 ตามลำดับ โดยระดับโลหะหนัก As Cd และ Pb ในฝุ่นมีค่าอยู่ในขีดจำกัดของกฎหมายด้านอาชีวอนามัยกำหนด และในตัวอย่างฝุ่นไม่พบโลหะหนัก Cr และ Hg และค่าเฉลี่ยของโลหะหนัก As-total Cr Cd Pb และ Hg ในปัสสาวะพบว่า As-total (91.67±98.63 และ 59.29±32.03 µg/L) Cr (0.82±0.51 และ 1.03±1.02 …
Quantum Safety Metrics Framework For Commercial Unmanned Aircraft Operators, Tracy L. Lamb, Nathan A. Phillips, Trong Van Nguyen
Quantum Safety Metrics Framework For Commercial Unmanned Aircraft Operators, Tracy L. Lamb, Nathan A. Phillips, Trong Van Nguyen
International Journal of Aviation, Aeronautics, and Aerospace
Commercial unmanned aircraft systems continue to increase in applications and diversity; however, mishaps and accidents erode safety, investment return, and efficiency. Most unmanned aircraft accidents are preceded by leading indicators; the ability to forecast and quantify these may provide increased safety and profitability. This mixed-method research study used a non-experimental parallel convergence approach with multiple instruments, multiple-case study n = 22, and one exemplar case design to develop a quantum safety metric program. This study used a combination of previously validated methods as development instruments, including; the HFACS, STAMP, 'Sierra Scale,' and Accident Prevention Effort equations. The study extended the …
Ecological Risk Assessment Of Microplastics And Heavy Metals In Central Industrial Wastewater Treatment Plant, Thamonwan Phuprasert
Ecological Risk Assessment Of Microplastics And Heavy Metals In Central Industrial Wastewater Treatment Plant, Thamonwan Phuprasert
Chulalongkorn University Theses and Dissertations (Chula ETD)
Microplastics become a big concern in environment. Their small particle size can absorb a variety of pollutants from the nearby environment when discharged into the environment, especially heavy metals. Central industrial wastewater treatment plant (WWTP) is an important source of microplastics in the environment. In this study, wastewater and sludge were collected from two industrial estates in Thailand. Wastewater was collected from 4 points i.e., influent, post grit chamber, post aeration tank, and post sedimentation tank while sludge was collected from sludge storage. Concentration of microplastics, heavy metals and heavy metals on microplastics were examined to evaluate ecological risk assessment. …
Improving Real-Time Methane Monitoring In Longwall Coal Mines Through System Response Characterization Of A Multi-Nodal Methane Detection Network, Brian Philip Cappellini
Improving Real-Time Methane Monitoring In Longwall Coal Mines Through System Response Characterization Of A Multi-Nodal Methane Detection Network, Brian Philip Cappellini
Graduate Theses, Dissertations, and Problem Reports
Machine automation and atmospheric monitoring are used by many industries to improve safety and productivity in the workplace. The underground Methane Watchdog System (MWS) is a multi-nodal network of sensors currently under development. The MWS aims to improve safety and productivity by introducing 10 compact sampling units designed to be easily integrated within the current roof support equipment of the mine. Each unit contains an array of sensors used to continuously monitor the environmental conditions which include methane concentration, temperature, pressure, and relative humidity. All MWS units report information back to a remote central processing hub (CPH) which collects nodal …