Matching Items (40)
Filtering by
- All Subjects: Business
- Creators: Department of Marketing
- Member of: Theses and Dissertations
Description
This thesis presents research on innovative AC transmission design concepts and focused mathematics for electric power transmission design. The focus relates to compact designs, high temperature low sag conductors, and high phase order design. The motivation of the research is to increase transmission capacity with limited right of way.
Regarding compact phase spacing, insight into the possibility of increasing the security rating of transmission lines is the primary focus through increased mutual coupling and decreased positive sequence reactance. Compact design can reduce the required corridor width to as little as 31% of traditional designs, especially with the use of inter-phase spacers. Typically transmission lines are built with conservative clearances, with difficulty obtaining right of way, more compact phase spacing may be needed. With design consideration significant compaction can produce an increase by 5-25% in the transmission line security (steady state stability) rating. In addition, other advantages and disadvantages of compact phase design are analyzed. Also, the next two topics: high temperature low sag conductors and high phase order designs include the use of compact designs.
High temperature low sag (HTLS) conductors are used to increase the thermal capacity of a transmission line up to two times the capacity compared to traditional conductors. HTLS conductors can operate continuously at 150-210oC and in emergency at 180-250oC (depending on the HTLS conductor). ACSR conductors operate continuously at 50-110oC and in emergency conditions at 110-150oC depending on the utility, line, and location. HTLS conductors have decreased sag characteristics of up to 33% compared to traditional ACSR conductors at 100oC and up to 22% at 180oC. In addition to what HTLS has to offer in terms of the thermal rating improvement, the possibility of using HTLS conductors to indirectly reduce tower height and compact the phases to increase the security limit is investigated. In addition, utilizing HTLS conductors to increase span length and decrease the number of transmission towers is investigated. The phase compaction or increased span length is accomplished by utilization of the improved physical sag characteristics of HTLS conductors.
High phase order (HPO) focuses on the ability to increase the power capacity for a given right of way. For example, a six phase line would have a thermal rating of approximately 173%, a security rating of approximately 289%, and the SIL would be approximately 300% of a double circuit three phase line with equal right of way and equal voltage line to line. In addition, this research focuses on algorithm and model development of HPO systems. A study of the impedance of HPO lines is presented. The line impedance matrices for some high phase order configurations are circulant Toeplitz matrices. Properties of circulant matrices are developed for the generalized sequence impedances of HPO lines. A method to calculate the sequence impedances utilizing unique distance parameter algorithms is presented. A novel method to design the sequence impedances to specifications is presented. Utilizing impedance matrices in circulant form, a generalized form of the sequence components transformation matrix is presented. A generalized voltage unbalance factor in discussed for HPO transmission lines. Algorithms to calculate the number of fault types and number of significant fault types for an n-phase system are presented. A discussion is presented on transposition of HPO transmission lines and a generalized fault analysis of a high phase order circuit is presented along with an HPO analysis program.
The work presented has the objective of increasing the use of rights of way for bulk power transmission through the use of innovative transmission technologies. The purpose of this dissertation is to lay down some of the building blocks and to help make the three technologies discussed practical applications in the future.
Regarding compact phase spacing, insight into the possibility of increasing the security rating of transmission lines is the primary focus through increased mutual coupling and decreased positive sequence reactance. Compact design can reduce the required corridor width to as little as 31% of traditional designs, especially with the use of inter-phase spacers. Typically transmission lines are built with conservative clearances, with difficulty obtaining right of way, more compact phase spacing may be needed. With design consideration significant compaction can produce an increase by 5-25% in the transmission line security (steady state stability) rating. In addition, other advantages and disadvantages of compact phase design are analyzed. Also, the next two topics: high temperature low sag conductors and high phase order designs include the use of compact designs.
High temperature low sag (HTLS) conductors are used to increase the thermal capacity of a transmission line up to two times the capacity compared to traditional conductors. HTLS conductors can operate continuously at 150-210oC and in emergency at 180-250oC (depending on the HTLS conductor). ACSR conductors operate continuously at 50-110oC and in emergency conditions at 110-150oC depending on the utility, line, and location. HTLS conductors have decreased sag characteristics of up to 33% compared to traditional ACSR conductors at 100oC and up to 22% at 180oC. In addition to what HTLS has to offer in terms of the thermal rating improvement, the possibility of using HTLS conductors to indirectly reduce tower height and compact the phases to increase the security limit is investigated. In addition, utilizing HTLS conductors to increase span length and decrease the number of transmission towers is investigated. The phase compaction or increased span length is accomplished by utilization of the improved physical sag characteristics of HTLS conductors.
High phase order (HPO) focuses on the ability to increase the power capacity for a given right of way. For example, a six phase line would have a thermal rating of approximately 173%, a security rating of approximately 289%, and the SIL would be approximately 300% of a double circuit three phase line with equal right of way and equal voltage line to line. In addition, this research focuses on algorithm and model development of HPO systems. A study of the impedance of HPO lines is presented. The line impedance matrices for some high phase order configurations are circulant Toeplitz matrices. Properties of circulant matrices are developed for the generalized sequence impedances of HPO lines. A method to calculate the sequence impedances utilizing unique distance parameter algorithms is presented. A novel method to design the sequence impedances to specifications is presented. Utilizing impedance matrices in circulant form, a generalized form of the sequence components transformation matrix is presented. A generalized voltage unbalance factor in discussed for HPO transmission lines. Algorithms to calculate the number of fault types and number of significant fault types for an n-phase system are presented. A discussion is presented on transposition of HPO transmission lines and a generalized fault analysis of a high phase order circuit is presented along with an HPO analysis program.
The work presented has the objective of increasing the use of rights of way for bulk power transmission through the use of innovative transmission technologies. The purpose of this dissertation is to lay down some of the building blocks and to help make the three technologies discussed practical applications in the future.
ContributorsPierre, Brian J (Author) / Heydt, Gerald (Thesis advisor) / Karady, George G. (Committee member) / Shunk, Dan (Committee member) / Vittal, Vijay (Committee member) / Arizona State University (Publisher)
Created2015
Description
For more than twenty years, clinical researchers have been publishing data regarding incidence and risk of adverse events (AEs) incurred during hospitalizations. Hospitals have standard operating policies and procedures (SOPP) to protect patients from AE. The AE specifics (rates, SOPP failures, timing and risk factors) during heart failure (HF) hospitalizations are unknown. There were 1,722 patients discharged with a primary diagnosis of HF from an academic hospital between January 2005 and December 2007. Three hundred eighty-one patients experienced 566 AEs, classified into four categories: medication (43.9%), infection (18.9%), patient care (26.3%), or procedural (10.9%). Three distinct analyses were performed: 1) patient's perspective of SOPP reliability including cumulative distribution and hazard functions of time to AEs; 2) Cox proportional hazards model to determine independent patient-specific risk factors for AEs; and 3) hospital administration's perspective of SOPP reliability through three years of the study including cumulative distribution and hazard functions of time between AEs and moving range statistical process control (SPC) charts for days between failures of each type. This is the first study, to our knowledge, to consider reliability of SOPP from both the patient's and hospital administration's perspective. AE rates in hospitalized patients are similar to other recently published reports and did not improve during the study period. Operations research methodologies will be necessary to improve reliability of care delivered to hospitalized patients.
ContributorsHuddleston, Jeanne (Author) / Fowler, John (Thesis advisor) / Montgomery, Douglas C. (Thesis advisor) / Gel, Esma (Committee member) / Shunk, Dan (Committee member) / Arizona State University (Publisher)
Created2012
Description
We were driven by the question: what is happening to the popularity of Major League Baseball? In order to answer this question we compared the league structure of Major League Baseball with that of the National Football League. We were able to speak with five former or current members of the respective leagues in order to gain some insight into how the two leagues operate. The main focus of our research was around the payroll structures of the two leagues as well as their revenue sharing policies. In the end, we discovered that Major League Baseball is becoming highly regionalized. The sport is still growing in popularity in terms of revenue and fan involvement, but it is becoming less popular on a national stage. The league is benefitting greatly from factors like the increasing importance of "TiVo proof programming" and a lack of competition. Each league is very different in its own right. While the NFL promotes a perception of competitive balance, Major League Baseball can be plagued by the negative perception it creates surrounding some of its smaller market teams.
ContributorsHeath, Cameron (Co-author) / Linamen, John (Co-author) / Eaton, John (Thesis director) / Mokwa, Michael (Committee member) / Barrett, The Honors College (Contributor) / WPC Graduate Programs (Contributor) / Department of Marketing (Contributor) / Department of Finance (Contributor) / Department of Information Systems (Contributor) / School of Accountancy (Contributor)
Created2015-05
Description
Recon International Adventures is an online adventure travel community that provides guide operators and adventure seekers a central communication platform. This platform gives adventure seekers all the tools they need to plan their trips and allows guide operators to better communicate the value that they can provide by creating a virtual preview of their trips. This platform will serve as an ideal place for endemic advertising thus increasing bookings for guide operators listed on the site and giving outdoor gear and clothing companies exposure to their target market. Recon will operate on a lean business model and test our minimal viable product with consumers before scaling.
ContributorsTsonis, Nicholas Ramsey (Author) / Miller, Duane (Thesis director) / Ostrom, Lonnie (Committee member) / Barrett, The Honors College (Contributor) / Department of Marketing (Contributor) / W. P. Carey School of Business (Contributor) / Department of Management (Contributor)
Created2015-05
Description
The way that people consume media is changing. While every platform seems to shift to video, there is a not-so-quiet revolution going on in the podcast industry. Each week, 10,000 new podcasts are created and uploaded and this number continues to grow (Moore, 2018). As the prevalence of smartphones, faster download speeds, and streaming platforms have proliferated across the globe, more and more people are turning to podcasts to get their content fix. Young professionals are especially drawn to the format because it fits perfectly into their busy lifestyles. This thesis explored how to create, produce, and market a podcast to college students and entry level workers that are interested in pursuing a career in advertising. We collected data through conducting depth interviews and an online survey to podcast listeners as well marketing and design students. The insights drawn from this research were combined with a thorough trend analysis of the podcast market to find the factors that matter most to the target consumer. From there we produced eight episodes of the podcast and released them over a timespan of two and a half months. Finally, paid social media advertisements were used to target students at major advertising colleges around the country. The results of this thesis found that there are a number of important takeaways from the process that can help anyone build a podcast brand, audience and media strategy. Our research found that prospective podcasters should: maintain a consistent upload schedule, invest in audio quality, experiment with content strategy, know their target audience, own your show’s brand, and not rely on just one audio streaming platform.
ContributorsLarkin, Brianna Nicole (Co-author) / Larkin, Brianna (Co-author) / Teixeira, Trent (Thesis director) / Eaton, Kathryn Karnos (Committee member) / Giles, Charles (Committee member) / Department of Information Systems (Contributor) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
Arizona State University has prided itself on the mission to become a global leader in innovation, sustainability, and inclusion for students of all backgrounds. To provide the most meaningful experiences and promote student growth both personally and professionally, the university offers over 800 students organizations for involvement and leadership on campus. With a heavy reliance on paper and print materials, large-scale engagement events such as Passport to ASU and Panhellenic Formal Recruitment have become wasteful and inefficient, straying from the goals established by university president, Michael M. Crow. The processes involved within these two events are outdated and limit accessibility for many students, minimizing the opportunity to get involved and connect with their peers. Engage is a company founded by an Arizona State University student, hoping to find feasible solutions to meet the needs and improve the overall student engagement experience. By designing two separate mobile applications for Passport to ASU and Panhellenic Formal Recruitment, Engage has eliminated the need for paper and print materials while simplifying the event processes for incoming students and the organizations. These apps will similarly improve accessibility for all students, allowing users to get involved and connect with peers without limitations such as transportation or time. Innovation is a key focus of Arizona State University, and to stay competitive they must find new ways to improve the student experience and modernize current offerings. Getting involved is often considered one of the defining parts of collegiate life, and the university must work to maximize opportunities and make the transition as effortless and enjoyable as possible. By implementing these two mobile apps, student engagement will reach new heights and realign with the missions Arizona State University was founded upon.
ContributorsFitzgerald, Paige Elizabeth (Author) / Montoya, Detra (Thesis director) / Giles, Bret (Committee member) / Department of Marketing (Contributor) / W.P. Carey School of Business (Contributor) / Department of Management and Entrepreneurship (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Sports business is currently among the fastest growing industries in China. The purpose of this project is to investigate the reasons sports business is growing so fast in China. This project will provide insight as to how the Chinese people and its government have ramped up the levels of sports participation and expenditures on sports infrastructure. In the past 10 years, China has developed one of the fastest growing economies in the world. China's sport sector potentially has become the next big growth market in the world. Although it is an emerging and fragile industry, the Chinese government has focused on turning the sports industry into the next big thing in the Chinese business sector. This study identifies and explains five major factors impacting sports in China: 1) the rise of famous Chinese and international athletes, 2), the impact of the 2012 Summer Olympics in Beijing, 3) a focus on business sponsorship partnerships, 4) strong government support, and 5) a changing cultural view of sports and their importance as a nation. Today, there are so many people who are seeing the untapped potential in the Chinese sports industry as a viable and profitable investment opportunity due in large part to the outstanding growth rate of sports business this past decade. The Chinese government is most supportive of this cultural shift as they recognize the impact of seeking new business opportunities as a driver of economic growth. The support of the Chinese government helps to create an environment of developing gold medal athletes as the success of these athlete inspire other people to increase the awareness of sports. Additionally, a large amount of Chinese sponsors like world known companies, Alibaba, Tencent, and WanDa Group, currently invest their money in the largest international sports events such as FIFA, Olympics, and FIBA. Chinese people are interested in playing sports and buying sports related products because they like following the fashion that is created by their favorite athlete or sports brands. Lastly, the thesis will bring you to see the future outlook in Chinese's sport industry.
ContributorsZhao, Chen Xi (Author) / Eaton, John (Thesis director) / McIntosh, Daniel (Committee member) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
The current Enterprise Requirements and Acquisition Model (ERAM), a discrete event simulation of the major tasks and decisions within the DoD acquisition system, identifies several what-if intervention strategies to improve program completion time. However, processes that contribute to the program acquisition completion time were not explicitly identified in the simulation study. This research seeks to determine the acquisition processes that contribute significantly to total simulated program time in the acquisition system for all programs reaching Milestone C. Specifically, this research examines the effect of increased scope management, technology maturity, and decreased variation and mean process times in post-Design Readiness Review contractor activities by performing additional simulation analyses. Potential policies are formulated from the results to further improve program acquisition completion time.
ContributorsWorger, Danielle Marie (Author) / Wu, Teresa (Thesis director) / Shunk, Dan (Committee member) / Wirthlin, J. Robert (Committee member) / Industrial, Systems (Contributor) / Barrett, The Honors College (Contributor)
Created2013-05
Description
This project is a business analysis of Corner Archery, a Glendale, AZ Archery shop. It addresses the various roles of the different employee positions within the company with a focus on the owner's responsibilities in particular. It also analyzes the business from an operations and revenue driver standpoint, making proposals to improve each of these areas.
ContributorsBecwar, Alea Louise (Author) / Peck, Sidnee (Thesis director) / LePine, Marcie (Committee member) / Ostrom, Lonnie (Committee member) / Barrett, The Honors College (Contributor) / Department of Management (Contributor) / Department of Marketing (Contributor)
Created2013-12
Description
The healthcare industry is currently facing significant changes. One of the changes in the industry is a movement towards patient-focused care, which considers the patient as a person and the impact of care on the person. Patient experience is part of patient-focused care, and has similarities to the marketing term customer experience, which contributes to happier customers and long-term financial growth and success for businesses. This thesis defines current issues in patient experience as it relates to hospital manager decision making. Through secondary research, this thesis demonstrates what patient experience is, the role it plays in healthcare and hospital settings, the pressures on hospitals to increase patient experience performance, how patient experience performance is measured, and what strategies or action drive improvements under current performance measurements. Many studies and articles exist examining each of these issues individually. However, these sources do not comprehensively define patient experience in hospitals with perspective on how this influences hospital strategy and decision-making. Previous works on patient experience from the perspective of hospital strategy do not include considerations for recent industry shifts, most notably the Patient Protection and Affordable Care Act. The collected definitions in this thesis provide guidance of relevant concerns hospital managers consider when formulating organization-wide strategy related to patient experience. This thesis explains how patient experience contributes to the success of hospitals in the short-term, medium-term, and long-term and how patient experience may shift its focus over time. Short-term concerns include specific regulations and definitions from the Centers for Medicare and Medicaid services, responsible for over half of all payments to hospitals. Conforming to CMS standards is a matter of survival for most hospitals in the short-term. Hospitals are adjusting to rules and payment models not in existence just two years ago. First, hospitals will adapt, and then hospitals will strive to optimize under new standards as well as respond to adjustments in the rules over the next several years. After patient experience standards are well established, certain aspects of patient experience will be part of long-term differentiation and success for hospitals. Responding comprehensively to the shift towards improving patient experience is a critical aspect for hospitals to weather the many changes in the healthcare industry. Patient experience will provide better care to patients and better financial health to the hospitals that perform above patient experience standards.
ContributorsWilton, Kara Alexandra (Author) / Ketcham, Jonathan (Thesis director) / Ostrom, Amy (Committee member) / Barrett, The Honors College (Contributor) / W. P. Carey School of Business (Contributor) / Department of Supply Chain Management (Contributor) / Department of Marketing (Contributor)
Created2014-05