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A Model Of Human Harm From A Falling Unmanned Aircraft: Implications For Uas Regulation, Andrew V. Shelley 2016 Aviation Safety Management Systems Ltd, Andrew Shelley Economic Consulting Ltd

A Model Of Human Harm From A Falling Unmanned Aircraft: Implications For Uas Regulation, Andrew V. Shelley

International Journal of Aviation, Aeronautics, and Aerospace

This paper quantifies the human harm, in the form of fatalities and skull fractures, which could occur as a result of an unmanned aircraft falling from a height. The analysis is used to establish the maximum height at which an unmanned aircraft can be flown over people to achieve a level of safety consistent with the rate of ground fatalities from General Aviation. The maximum height is dependent on the aircraft mass and the population density of people on the ground below.

The results are used to inform a critical evaluation of recent recommendations from the FAA-chartered “Unmanned Aircraft Systems ...


A Risk Based Framework For Evaluating Gated Spillway Operations, Greg Paxson, Marty McCann Jr, Mark Landis 2016 Stanford University

A Risk Based Framework For Evaluating Gated Spillway Operations, Greg Paxson, Marty Mccann Jr, Mark Landis

6ᵗʰ International Symposium on Hydraulic Structures

Gated spillways are often necessary to provide both operational flexibility and discharge capacity to pass large flood events. However, gated spillways present operational challenges to dam owners and operators, often necessitating development of a flood operations plan (FOP) that is used in tandem with the dam’s emergency action plan (EAP). Even a well-intentioned and robust FOP/EAP can require personnel to predict flooding, use judgment particular to the requirements of the plan, and react quickly. In addition, all of the equipment required to operate the gates need to function as designed and be operated in accordance with the FOP ...


Operational Vulnerability Of The High Speed Rail Infrastructure In Malaysia From Climate Change Risks, Sazrul Leena Binti Sa’adin, Sakdirat Kaewunruen, David Jaroszweski 2016 Department of Public Works, Ministry of Interior, Kuala Lumpur, Malaysia

Operational Vulnerability Of The High Speed Rail Infrastructure In Malaysia From Climate Change Risks, Sazrul Leena Binti Sa’Adin, Sakdirat Kaewunruen, David Jaroszweski

Sakdirat Kaewunruen

Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. Globally the atmosphere and ocean has increasingly getting warmer, the amount of ice on the earth is decreasing, and sea level has risen. The current railway network in Malaysia, over the last decade, has been significantly affected by severe weather conditions such as rainfall, lightning, wind and very high temperatures. These extremes can lead to asset system failure, degraded operation and ultimately, delays to train services. Thus to avoid those disaster happen, such resilience infrastructure is a vital ...


Safety-Based Maintenance For Geometry Restoration Of Railway Turnout Systems In Various Operational Environments, Muhammad Fitri Ishak, Serdar Dindar, Sakdirat Kaewunruen 2016 KERETAPI TANAH MELAYU BERHAD (KTMB)

Safety-Based Maintenance For Geometry Restoration Of Railway Turnout Systems In Various Operational Environments, Muhammad Fitri Ishak, Serdar Dindar, Sakdirat Kaewunruen

Sakdirat Kaewunruen

Turnout system is one of the most critical infrastructures in the railway operations. As high demand in railway operation, the railway operators have to increase the axle load, traffic density and speed of the operation. These would be able to give high impact to the turnout system as increasing the vibration level and noise when the rolling stock crossing the turnout. Therefore, any failure in turnout system can cause negative impact to the operation in scope of maintenance cost and catastrophic consequence effect from the failure could happen such as major derailment. Safety-based maintenance (SBM) approach is an effective maintenance ...


Quantitative Risk Evaluation Of Obstacle Limitation Surfaces For Final Approaches At Airports, Amila SIlva, Alexandre G. de Barros 2016 University of Calgary

Quantitative Risk Evaluation Of Obstacle Limitation Surfaces For Final Approaches At Airports, Amila Silva, Alexandre G. De Barros

Journal of Aviation Technology and Engineering

Obstacle limitation surfaces (OLS) are the main safeguard against objects that can pose a hazard to aircraft operations at and around airports. The standard dimensions of the most of those surfaces were estimated using the pilot’s experience at the time when they were included in the standard documents. As a result, some of these standards may have been overestimated, while others may not provide an adequate level of safety. With airports moving to the Safety Management System (SMS) approach to design and operations safety, proper evaluation of the level of safety provided by OLS at specific sites becomes important ...


Prosense, Johnny Favazza II, Casey Glasgow, Matt Epperson 2016 California Polytechnic State University, San Luis Obispo

Prosense, Johnny Favazza Ii, Casey Glasgow, Matt Epperson

Computer Engineering

This project aims to gather advanced data sets from MEMS sensors and GPS and deliver it to the user, who can capitalize on the data. The once negligible half-degree difference of your board barreling down a wave can be recorded from a gyro and exploited for the perfect turn. The exact speed dreaded by longboarders where speed wobbles turn into a road rash can be analysed and consequently avoided. Ascertaining the summit of your flight using combined GPS sensors from the ski ramp allows for the correct timing of tricks. When it comes to pursuing excellence in professional sports, amateur ...


Influence Of Personality On Emotional Contagion Through Social Media, Theodore T. Jensen 2016 University of Connecticut - Storrs

Influence Of Personality On Emotional Contagion Through Social Media, Theodore T. Jensen

Honors Scholar Theses

The rapid growth of computers and computing technologies in the recent past has led to dramatic changes in modern social interactions. Connectivity through the internet and social networking sites is a massive part of people's lives, with younger generations learning to interact more and more through these means. It is necessary to recognize the emotional influence of these forms of communication- their influence on mental health will grow as they become a larger part of the social fabric. Facebook and other social media have been shown to be a form of emotional contagion; emotional states can be transferred from ...


Modeling Supply Chain Resiliency, Jeff A. Hazel 2016 University of Arkansas, Fayetteville

Modeling Supply Chain Resiliency, Jeff A. Hazel

Industrial Engineering Undergraduate Honors Theses

Engineered Resilient Systems (ERS) is a Department of Defense (DoD) program focusing on the effective and efficient design and development of complex engineered systems throughout their life cycle. There is a growing literature with qualitative definitions of resilience and quantitative models for systems with one performance measure. This paper uses a quantitative resilience framework (the Framework for ERS) that includes system design options, reliability, threats, vulnerabilities, responses, and consequences assessed in multiple system performance measures. The framework assists in establishing a model for any system to evaluate resiliency. This paper applies this framework using Multiple Objective Decision Analysis (MODA) to ...


Developing A Risk Analysis Model To Improve Study Abroad Awareness, Tyler Spain 2016 University of Arkansas, Fayetteville

Developing A Risk Analysis Model To Improve Study Abroad Awareness, Tyler Spain

Industrial Engineering Undergraduate Honors Theses

As international education opportunities increase in popularity among U.S. college students (McMurtrie, 2007), it is becoming more and more necessary for study abroad organizations to be aware of the risks students face as they travel abroad. While some international cities are riskier than others, it can be difficult to distinguish between cities which truly carry a high degree of risk for visiting students, and which cities are only perceived to be risky based on various personal misconceptions. The University of Arkansas Office of Study Abroad & International Exchange currently lacks a way to quantifiably analyze the risk of study abroad ...


Co-Operation In Health And Safety: A Game Theory Analysis, Sylvie Nadeau 2016 Department of Mechanical Engineering, École de Technologie Supérieure, Quebec, Canada

Co-Operation In Health And Safety: A Game Theory Analysis, Sylvie Nadeau

University of New Hampshire Law Review

[Excerpt] “Health and safety managers face complex challenges in today’s production environments. They are confronted with increasingly flexible, autonomous and polyvalent contexts. Asymmetry of information on the workplace is widespread because various intervening parties rely on information lacking conformity. Social partners generate and use information which supports or benefits their pursuit of differing goals. Ascertaining and controlling this information can prove both difficult and costly. When addressing health and safety issues, one intervening partner alters or changes behavior in response to changes introduced by the other side.1 Strategic behaviors result, based on post-contract opportunism (moral hazard) and alliances ...


Risk Perception Regarding Energy Production: Factor Structure In A French Sample, Etienne Mullet, Anne Bertrand, Cécilia Lazreg, Sheila Rivière Shafighi 2016 Cognition and Decision Laboratory of the Ecole Pratique des Hautes Etudes

Risk Perception Regarding Energy Production: Factor Structure In A French Sample, Etienne Mullet, Anne Bertrand, Cécilia Lazreg, Sheila Rivière Shafighi

University of New Hampshire Law Review

[Excerpt] "Considering that energy production is a key factor in the development of nations, it is important to have detailed information on the risks attributed by lay people to the different types of energy as well as the different stages of energy production. This study reports on the structure of risk perception with regard to energy production found among French participants. There have already been many investigations of risk perception related to energy production. . . . The present study is a direct extension of the Mullet study. A similar, although more complete, set of items was used. These items related to specific ...


Reply To Dr. Tengs’ Response, Lisa Heinzerling 2016 Georgetown University Law Center

Reply To Dr. Tengs’ Response, Lisa Heinzerling

University of New Hampshire Law Review

[Excerpt] "The primary aim of my article “Five-Hundred Life-Saving Interventions and Their Misuse in the Debate Over Regulatory Reform”1 was to dispel the myth that had grown up around the studies Dr. Tammy Tengs published with Dr. John Graham: that is, the idea that government regulation is responsible for, in Dr. Graham’s words, the “statistical murder”2 of 60,000 people in the United States every year. As I demonstrated in my article, nothing in the work of Drs. Tengs and Graham supports Dr. Graham’s recurring charge of statistical murder through regulation. And nothing in Dr. Tengs ...


A Response To Lisa Heinzerling's Article “Five-Hundred Life-Saving Interventions And Their Misuse In The Debate Over Regulatory Reform”, Tammy O. Tengs 2016 University of California, Irvine

A Response To Lisa Heinzerling's Article “Five-Hundred Life-Saving Interventions And Their Misuse In The Debate Over Regulatory Reform”, Tammy O. Tengs

University of New Hampshire Law Review

[Excerpt] "I am writing in response to Lisa Heinzerling's article “Five-Hundred Life-Saving Interventions and Their Misuse in the Debate Over Regulatory Reform,”1 published in the Spring 2002 issue of Risk: Health, Safety & Environment. Dr. Heinzerling comments on two papers that my colleagues and I, affiliated with the Harvard Center for Risk Analysis, produced as part of research funded by the National Science Foundation over a decade ago. The first is the article “Five-Hundred Lifesaving Interventions and Their Cost-Effectiveness,” published in the journal Risk Analysis in 1995. In this article we described the cost per year of lives saved ...


System Safety Modeling Of Alternative Geofencing Configurations For Small Uas, James T. Luxhoj 2016 LCR

System Safety Modeling Of Alternative Geofencing Configurations For Small Uas, James T. Luxhoj

International Journal of Aviation, Aeronautics, and Aerospace

As is well known, the integration of small Unmanned Aircraft Systems (sUAS) or “drones” into the National Airspace System (NAS) has captured significant industry, academic, regulatory and media attention. For sUAS that typically fly low and slow, the possibility of a mid-air collision with a nearby general aviation aircraft needs to be studied from a system safety perspective to identify possible hazards and to assess mitigations. The Aviation System Risk Model (ASRM) is a first-generation socio-technical model that uses a Bayesian Belief Network (BBN) methodology to integrate possible hazards to assess a non-linear safety risk metric. Using inductive logic, the ...


Not-So-Risky Business? Assessing The Risk Of Integrating Large Rpvs Into The Current Air Traffic System, Hans-Joachim K. Ruff-Stahl, Steven Esser, Dirk Farsch, Thomas Graner, Robert Klein, Christian Schneidt, Stefan Schoenborn 2016 Embry-Riddle Aeronautical University - Worldwide

Not-So-Risky Business? Assessing The Risk Of Integrating Large Rpvs Into The Current Air Traffic System, Hans-Joachim K. Ruff-Stahl, Steven Esser, Dirk Farsch, Thomas Graner, Robert Klein, Christian Schneidt, Stefan Schoenborn

International Journal of Aviation, Aeronautics, and Aerospace

In spite of considerable efforts to commercialize large remotely piloted vehicles (RPV), an integration of these RPVs into the existing Air Transportation System (ATS) and Airspace Structure is pending. The purpose of this paper was to assess the risks of an exemplary integration of a Heron 1 type RPV into the existing European air space structure within the current regulatory framework and without the availability of sense and avoid technology. Six incident occurrence scenarios were investigated, based on a modified Fault Tree Analysis and Eurocontrol’s risk matrix. It was found that without the implementation of technological or procedural changes ...


Safety Implications Of Transit Operator Schedule Policies, Hung Hoang 2016 University of North Florida

Safety Implications Of Transit Operator Schedule Policies, Hung Hoang

UNF Theses and Dissertations

In the bus transit community, driving long hours or spending extra hours at work are very common. This is true in the State of Florida, where bus transit is a very popular mode of public transportation. Although the correlation between a bus driver’s schedule and a crash event appears intuitive, further study regarding the effects of operator driving schedules on accident rates is needed to evaluate safety measures. The focus of this research is on the examination of bus driver schedules, and the effects of scheduling on accident rates in Florida. Data were collected at five bus transit agencies ...


Strategies For Reducing Supplier Risk: Inputs Into The Supply Chain, Christopher A. Greene 2016 University of Massachusetts - Amherst

Strategies For Reducing Supplier Risk: Inputs Into The Supply Chain, Christopher A. Greene

Masters Theses May 2014 - current

There are many aspects to consider when managing an entire supply chain from procurement to fulfillment. Complex assemblies require hundreds of components, sourced from all corners of the globe, to come together in a synchronized fashion. Given the magnitude of the supply chain, high quality standards, and significantly increased outsourcing, there is a strong need to monitor supplier risk and quickly identify and mitigate potential problems. Moreover, the continuous pressure to reduce resources and pressure to cut costs, further increases the need for the development of procedures and tools that can quickly and efficiently address these potential supply chain risks ...


Fault Diagnosis And Failure Prognostics Of Lithium-Ion Battery Based On Least Squares Support Vector Machine And Memory Particle Filter Framework, Mohammed Ali Lskaafi 2015 University of Tennessee - Knoxville

Fault Diagnosis And Failure Prognostics Of Lithium-Ion Battery Based On Least Squares Support Vector Machine And Memory Particle Filter Framework, Mohammed Ali Lskaafi

Doctoral Dissertations

123456A novel data driven approach is developed for fault diagnosis and remaining useful life (RUL) prognostics for lithium-ion batteries using Least Square Support Vector Machine (LS-SVM) and Memory-Particle Filter (M-PF). Unlike traditional data-driven models for capacity fault diagnosis and failure prognosis, which require multidimensional physical characteristics, the proposed algorithm uses only two variables: Energy Efficiency (EE), and Work Temperature. The aim of this novel framework is to improve the accuracy of incipient and abrupt faults diagnosis and failure prognosis. First, the LSSVM is used to generate residual signal based on capacity fade trends of the Li-ion batteries. Second, adaptive threshold ...


Dividing And Conquering Meshes Within The Nist Fire Dynamics Simulator (Fds) On Multicore Computing Systems, Donald Charles Collins 2015 University of Tennessee - Knoxville

Dividing And Conquering Meshes Within The Nist Fire Dynamics Simulator (Fds) On Multicore Computing Systems, Donald Charles Collins

Masters Theses

The National Institute for Standards and Technology (NIST) Fire Dynamics Simulator (FDS) provides a computational fluid dynamics model of a fire, which can be visualized by using NIST Smokeview (SMV). Users must create a configuration file (*.fds) that describes the environment and other characteristics of the fire scene so that the FDS software can produce the output file (*.smv) needed for visualization.The processing can be computationally intensive, often taking between several minutes and several hours to complete. In many cases, a user will create a file that is not optimized for a multicore computing system. By dividing meshes within ...


Evaluating Launch Vehicle / Reentry Vehicle (Lv/Rv) Separation Concepts, Zheng Tao, Ganghuai Wang, Tudor Masek, Thomas J. St. Clair 2015 The MITRE Corporation

Evaluating Launch Vehicle / Reentry Vehicle (Lv/Rv) Separation Concepts, Zheng Tao, Ganghuai Wang, Tudor Masek, Thomas J. St. Clair

Space Traffic Management Conference

Launch Vehicle/Reentry Vehicle (LV/RV) operations are expected to increase across the National Airspace System (NAS) as their reliability and availability improve. LV/RV designs and the industry landscape have vastly changed since the 1960’s, and the Federal Aviation Administration’s (FAA) methods for handling these operations need to evolve to support the expected growth. Currently, large amounts of airspace are segregated for every LV/RV operation. This increases costs for NAS users and may limit LV/RV opportunities. The FAA’s NextGen office recently proposed two more efficient separation concepts for LV/RV operations called Space Transition ...


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