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You searched for +publisher:"Purdue University" +contributor:("Mary Johnson"). Showing records 1 – 3 of 3 total matches.

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Purdue University

1. Shila, Jacob Joshua Howard. A study to estimate and compare the total particulate matter emission indices (EIN) between traditional jet fuel and two blends of Jet A/Camelina biofuel used in a high by-pass turbofan engine: A case study of Honeywell TFE-109 engine.

Degree: MSin Aeronautics and Astronautics, Aeronautics and Astronautics, 2014, Purdue University

The aviation industry is expected to grow at an annual rate of 5% until the year 2031 according to Boeing Outlook Report of 2012. Although the aerospace manufacturers have introduced new aircraft and engines technologies to reduce the emissions generated by aircraft engines, about 15% of all aircraft in 2032 will be using the older technologies. Therefore, agencies such as the National Aeronautics and Astronautics Administration (NASA), Federal Aviation Administration (FAA), the Environmental Protection Agency (EPA) among others together with some academic institutions have been working to characterize both physical and chemical characteristics of the aircraft particulate matter emissions to further understand their effects to the environment. The International Civil Aviation Organization (ICAO) is also working to establish an inventory with Particulate Matter emissions for all the aircraft turbine engines for certification purposes. This steps comes as a result of smoke measurements not being sufficient to provide detailed information on the effects of Particulate Matter (PM) emissions as far as the health and environmental concerns. The use of alternative fuels is essential to reduce the impacts of emissions released by Jet engines since alternative aviation fuels have been studied to lower particulate matter emissions in some types of engines families. ^ The purpose of this study was to determine whether the emission indices of the biofuel blended fuels were lower than the emission indices of the traditional jet fuel at selected engine thrust settings. The biofuel blends observed were 75% Jet A-25% Camelina blend biofuel, and 50% Jet A-50% Jet A blend biofuel. The traditional jet fuel in this study was the Jet A fuel. The results of this study may be useful in establishing a baseline for aircraft engines' PM inventory. Currently the International Civil Aviation Organization (ICAO) engines emissions database contains only gaseous emissions data for only the TFE 731 and JT15D engines' families as representatives of other engines with rated thrust of 6000 pounds or below. The results of this study may be used to add to the knowledge of PM emission data that has been collected in other research studies. ^ This study was quantitative in nature. Three factors were designated which were the types of fuels studied. The TFE-109 turbofan engine was the experimental subject. The independent variable was the engine thrust setting while the response variable was the emission index. Four engine runs were conducted for each fuel. In each engine run, four engine thrust settings were observed. The four engine thrust levels were 10%, 30%, 85%, and 100% rated thrusts levels. Therefore, for each engine thrust settings, there four replicates. The experiments were conducted using a TFE-109 engine test cell located in the Niswonger Aviation Technology building at the Purdue University Airport. The testing facility has the capability to conduct the aircraft PM emissions tests. Due to the equipment limitations, the study was… Advisors/Committee Members: Mary Johnson, Mary Johnson, Denver Lopp, David Stanley.

Subjects/Keywords: Alternative Energy; Aerospace Engineering; Environmental Sciences

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APA (6th Edition):

Shila, J. J. H. (2014). A study to estimate and compare the total particulate matter emission indices (EIN) between traditional jet fuel and two blends of Jet A/Camelina biofuel used in a high by-pass turbofan engine: A case study of Honeywell TFE-109 engine. (Thesis). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_theses/682

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Shila, Jacob Joshua Howard. “A study to estimate and compare the total particulate matter emission indices (EIN) between traditional jet fuel and two blends of Jet A/Camelina biofuel used in a high by-pass turbofan engine: A case study of Honeywell TFE-109 engine.” 2014. Thesis, Purdue University. Accessed February 16, 2019. http://docs.lib.purdue.edu/open_access_theses/682.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Shila, Jacob Joshua Howard. “A study to estimate and compare the total particulate matter emission indices (EIN) between traditional jet fuel and two blends of Jet A/Camelina biofuel used in a high by-pass turbofan engine: A case study of Honeywell TFE-109 engine.” 2014. Web. 16 Feb 2019.

Vancouver:

Shila JJH. A study to estimate and compare the total particulate matter emission indices (EIN) between traditional jet fuel and two blends of Jet A/Camelina biofuel used in a high by-pass turbofan engine: A case study of Honeywell TFE-109 engine. [Internet] [Thesis]. Purdue University; 2014. [cited 2019 Feb 16]. Available from: http://docs.lib.purdue.edu/open_access_theses/682.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shila JJH. A study to estimate and compare the total particulate matter emission indices (EIN) between traditional jet fuel and two blends of Jet A/Camelina biofuel used in a high by-pass turbofan engine: A case study of Honeywell TFE-109 engine. [Thesis]. Purdue University; 2014. Available from: http://docs.lib.purdue.edu/open_access_theses/682

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Purdue University

2. Kennedy, Rachel Jayne. Four runway configuration types and their relation to arrival delays.

Degree: MS, Technology Leadership and Innovation, 2015, Purdue University

Aside from a safe flight, airline passengers expect to arrive to their destination on time. With an abundance of flights in the United States arriving late each day, it has yet to be determined if the airport's layout plays a role. This research looks at four common runway configuration types at hub and non-hub airports to determine if runway configurations affect arrival delays. A two-way ANOVA is conducted comparing the means of the on-time arrival percentage between airports exhibiting each of the four runway configurations as well as hub and non-hub airport status. The results determine if any or none of the runway configurations and hub types have the greatest influence on arrival delays. Advisors/Committee Members: Kathryne Newton, Kathryne Newton, Mary Johnson, Mathias Sutton.

Subjects/Keywords: Management Sciences and Quantitative Methods; Transportation Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Kennedy, R. J. (2015). Four runway configuration types and their relation to arrival delays. (Thesis). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_theses/489

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Kennedy, Rachel Jayne. “Four runway configuration types and their relation to arrival delays.” 2015. Thesis, Purdue University. Accessed February 16, 2019. http://docs.lib.purdue.edu/open_access_theses/489.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Kennedy, Rachel Jayne. “Four runway configuration types and their relation to arrival delays.” 2015. Web. 16 Feb 2019.

Vancouver:

Kennedy RJ. Four runway configuration types and their relation to arrival delays. [Internet] [Thesis]. Purdue University; 2015. [cited 2019 Feb 16]. Available from: http://docs.lib.purdue.edu/open_access_theses/489.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kennedy RJ. Four runway configuration types and their relation to arrival delays. [Thesis]. Purdue University; 2015. Available from: http://docs.lib.purdue.edu/open_access_theses/489

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Purdue University

3. Caballero, Hugo. Project portfolio evaluation and selection using mathematical programming and optimization methods.

Degree: PhD, Technology, 2014, Purdue University

Project portfolio selection is an essential process for portfolio management and plays an important role in accomplishing organizational goals. This research explores the feasibility of developing a project portfolio selection tool by using mathematical programming and optimization models, specifically 0-1 integer programming (one objective portfolio) and goal programming (multiple objectives portfolio). These methods select the set of projects which deliver the maximum benefit (e.g., net present value, profit, etc.) represented for objective functions subjected to a series of constraints (e.g., technical requirements and/or resources availability) considering the scheduling of selected projects in a planning horizon, interdependence relationship among projects (e.g., complementary projects and mutually exclusive projects) and especial cases like mandatory and ongoing projects. ^ Based on the proposed model, a Decision Support System (DSS) will be developed and tested for accuracy, flexibility and ease of use. This computational tool will be designed for decision makers and users that are not familiar with mathematical programming models. Advisors/Committee Members: Dr. Edie. K. Schmidt, Dr. Edie. K. Schmidt, Dr. Mary Johnson, Dr. Chad Laux, Dr. Jonathan Davis.

Subjects/Keywords: Operations; Research; Business Administration, Management, and Operations

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Caballero, H. (2014). Project portfolio evaluation and selection using mathematical programming and optimization methods. (Doctoral Dissertation). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_dissertations/237

Chicago Manual of Style (16th Edition):

Caballero, Hugo. “Project portfolio evaluation and selection using mathematical programming and optimization methods.” 2014. Doctoral Dissertation, Purdue University. Accessed February 16, 2019. http://docs.lib.purdue.edu/open_access_dissertations/237.

MLA Handbook (7th Edition):

Caballero, Hugo. “Project portfolio evaluation and selection using mathematical programming and optimization methods.” 2014. Web. 16 Feb 2019.

Vancouver:

Caballero H. Project portfolio evaluation and selection using mathematical programming and optimization methods. [Internet] [Doctoral dissertation]. Purdue University; 2014. [cited 2019 Feb 16]. Available from: http://docs.lib.purdue.edu/open_access_dissertations/237.

Council of Science Editors:

Caballero H. Project portfolio evaluation and selection using mathematical programming and optimization methods. [Doctoral Dissertation]. Purdue University; 2014. Available from: http://docs.lib.purdue.edu/open_access_dissertations/237

.