Seong Dae Kim

University of Tennessee at Chattanooga | Chatt · Engineering Management & Technology

This article presents an energy-efficient multiplex housing project proposed in response to a local affordable housing crisis among low-income urban neighborhoods in Chattanooga, TN, in the United States. The project adopted the systems thinking approach, which encouraged design students to think beyond individual components and consider the interc...

The rapid increase of satellite deployments to Earth’s orbits is causing an increase in the number of space debris and inactive satellites in Earth's orbits which poses a growing threat of orbital collisions. Orbital collisions can trigger a domino effect, known as the Kessler syndrome, which can cause uncontrolled continuous orbital collisions. Th...

This paper discusses the design of a net-zero single-family house in Chattanooga, Tennessee, which was proposed for the 2022 Solar Decathlon Design Challenge entry. The site was in a 100-year flood zone and registered as a national and local historic district. The interdisciplinary team consisted of University of Tennessee Chattanooga (UTC) student...

Despite the deployment of collaborative robots for various industrial processes, their teaching and control remain comparatively difficult tasks compared with general industrial robots. Various imitation learning methods involving the transfer of human poses to a collaborative robot have been proposed. However, most of these methods depend heavily...

Plug-in electric vehicles (PEVs) have immense potential for reducing greenhouse gas emissions and dependence on fossil fuels, and for smart grid applications. Although a great deal of research is focused on technological limitations that affect PEV battery performance targets, a major and arguably equal concern is the constraint imposed by the fini...

This paper describes the application of a combination of TRIZ and Bass modeling to forecast the technology growth projections for one of the wearable devices, fitness trackers. For the TRIZ modeling, the fitness tracking system was divided into three subsystems and each was analyzed as per the technology trends from current literature. The subsyste...

Risks or uncertainties have been characterized in many ways and are fairly well understood, but hidden risks have been underemphasized. This study identifies characteristics of hidden risks, especially from disasters, and characterizes them on the basis of findings from past research. The proposed framework characterizes hidden risks by retrospecti...

65% of the world's population lives in countries where overweight and obesity kills more people than those who are underweight. Healthcare organizations, private corporations and individuals are investing in proactive health and weight management. Advances in sensor technologies have enabled development of affordable wearable technology devices, th...

Unidentified risks, also known as unknown unknowns, have traditionally been underemphasized by risk management. Most unknown unknowns are believed to be impossible to find or imagine in advance. But this study reveals that many are not truly unidentifiable. This study develops a model using separation principles of the Theory of Inventive Problem S...

Given limited funding, should we invest in infrastructure to speed evacuation in an emergency, or in forecasting technology to better predict the timing and intensity of the event? For example, should we build additional evac-uation routes along the Gulf Coast of the United States to speed hurricane evac-uations or should we improve our ability to...

We examine the efficiency of the Major League Baseball over-under betting market. Previous research in this area was unable to correctly test market efficiency because a data-set including the odds at which wagers were placed was unavailable. Using a data-set that includes both run lines and money lines, we find little evidence that the over-under...

The program evaluation and review technique (PERT) is a popular method for measuring and controlling activity progress in projects. Its structure is simple, and the result is fairly accurate as long as none of its base assumptions is violated. Many authors have challenged these assumptions and suggested improvements to the mean and variance formula...

In this paper, the authors verify probability of precipitation (PoP) forecasts provided by the National Weather Service (NWS), The Weather Channel (TWC), and CustomWeather (CW). The n-day-ahead forecasts, where n ranges from 1 to 3 for the NWS, from 1 to 9 for TWC, and from 1 to 14 for CW, are analyzed. The dataset includes almost 13 million PoP fo...

When faced with a significant risk, society must decide how much to invest in prediction and response. For example, in the face of hurricane risk how much should we invest in better forecasting versus increased evacuation speed? To address this need, we develop a Markov decision processes model to analyze the interaction between the emergency respo...

Hurricane Katrina of 2005 was responsible for at least 81 billion dollars of property damage. In planning for such emergencies, society must decide whether to invest in the ability to evacuate more speedily or in improved forecasting technology to better predict the timing and intensity of the critical event. To address this need, we use dynamic pr...

The Weather Channel (TWC) is a leading provider of weather information to the general public. In this paper the reliability of their probability of precipitation (PoP) forecasts over a 14-month period at 42 locations across the United States is verified. It is found that PoPs between 0.4 and 0.9 are well calibrated for near-term forecasts. However,...

Since there are fundamental contradictions in difficult engineering problems, most solutions have been trade-offs between conflicting requirements. In those cases, an improvement of a system parameter causes deterioration of another parameter in the system. TRIZ, a structured method for creative problem solving, is used to obtain breakthrough solut...