publisher:("MIT")

MIT

1. Dokras, Nupur Satchit. Prime Pantry Optimization : a cost analysis and deep-dive in process improvement ; Cost analysis and deep-dive in process improvement .

Degree: 2017, MIT

URL: http://hdl.handle.net/1721.1/111873

► Amazon's Prime Pantry is a specialty business that focuses on selling household goods such as toilet paper or bottled water. The business is a part… (more)

▼ Amazon's Prime Pantry is a specialty business that focuses on selling household goods such as toilet paper or bottled water. The business is a part of the consumables portfolio that has consistently met or exceeded forecasts. However as the business grows and lower Average Sales Price (ASP) items are introduced, optimizing the current fulfillment solution is critical to ensure profitability through growth. In 2016, there was a 662B market opportunity to fulfill consumables between the 0-5 ASP range. As a relatively high velocity consumables business, the Pantry platform is well situated to help address this opportunity as well as address fulfillment of items below a 5 ASP. This thesis analyzes two primary initiatives: 1) The first is to determine the ideal characteristics (inbound profile, cubic velocity, demand) of Stock Keeping Units (SKUs) that will determine how new SKUs can be added to Amazon Pantry while maintaining a positive profit through an in depth analysis of inventory management strategies, 2) The second is to design a low cost fulfillment solution for this chosen product profile while maximizing throughput and capacity through process flow changes and automation where necessary. Part I analysis determined general tenets for inventory management correlating item characteristics with cost. Key recommendations included palletizing larger items and storing smaller items in smaller quantities to decrease obsolescence costs. The study showed it was necessary to make strategic decisions at a SKU level. Therefore, a dynamic model was created to change the inputs based on characteristics for new or existing SKUs to output the operational cost implications on the network. Part II analysis showed that splitting process paths significantly improved throughput and capacity for Pantry operations. The thesis shows that with a large scale operation, consolidation of process paths is not necessarily cost efficient or operationally beneficial. This is shown through an in depth analysis of a new picking process, pick to rebin. An additional design analysis of an automated sortation system investigates further operational improvements. Each of the initiatives outlined above will provide additional savings to the Pantry business. Though the Low ASP analysis generated savings of 2.27M, only a fraction of the SKUs were analyzed. If case replenishment is automated or more pallets are used in the field, these savings will increase since the Variable Cost Per Unit (VCPU) of handling these items will decrease. The pick to rebin initiative can save the company an additional 432,000 annually with a VCPU improvement of 0.018. Lastly, the OPEX machine would save 312,000 annually since the improvement over manual pick to rebin is a VCPU improvement of 0.013. In total, these savings amount to 3.02M annually. Though the cost improvements are fairly significant, these improvements could prevent the business from needing to open new sites at the current frequency required and will improve the business's current operations… Advisors/Committee Members: Donald Rosenfield, Julie Shah (advisor).

Subjects/Keywords: Mechanical Engineering.; Sloan School of Management.; Leaders for Global Operations Program.

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APA (6^th Edition):

Dokras, N. S. (2017). Prime Pantry Optimization : a cost analysis and deep-dive in process improvement ; Cost analysis and deep-dive in process improvement . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/111873

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

Chicago Manual of Style (16^th Edition):

Dokras, Nupur Satchit. “Prime Pantry Optimization : a cost analysis and deep-dive in process improvement ; Cost analysis and deep-dive in process improvement .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/111873.

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

MLA Handbook (7^th Edition):

Dokras, Nupur Satchit. “Prime Pantry Optimization : a cost analysis and deep-dive in process improvement ; Cost analysis and deep-dive in process improvement .” 2017. Web. 17 Jun 2019.

Vancouver:

Dokras NS. Prime Pantry Optimization : a cost analysis and deep-dive in process improvement ; Cost analysis and deep-dive in process improvement . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/111873.

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

Council of Science Editors:

Dokras NS. Prime Pantry Optimization : a cost analysis and deep-dive in process improvement ; Cost analysis and deep-dive in process improvement . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/111873

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

MIT

2. Huang, Wenqian Ronny. All-optical electron acceleration with ultrafast THz pulses .

Degree: Department of Electrical Engineering and Computer Science, 2017, MIT

URL: http://hdl.handle.net/1721.1/113930

► This thesis discusses a series of advances toward - and resulting in - the demonstration of the first ultrafast THz-driven electron gun, a technology with… (more)

Subjects/Keywords: Electrical Engineering and Computer Science.

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APA (6^th Edition):

Huang, W. R. (2017). All-optical electron acceleration with ultrafast THz pulses . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/113930

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

Chicago Manual of Style (16^th Edition):

Huang, Wenqian Ronny. “All-optical electron acceleration with ultrafast THz pulses .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/113930.

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

MLA Handbook (7^th Edition):

Huang, Wenqian Ronny. “All-optical electron acceleration with ultrafast THz pulses .” 2017. Web. 17 Jun 2019.

Vancouver:

Huang WR. All-optical electron acceleration with ultrafast THz pulses . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/113930.

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

Council of Science Editors:

Huang WR. All-optical electron acceleration with ultrafast THz pulses . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/113930

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

MIT

3. Fink, Daniel, S.M. Massachusetts Institute of Technology. Linking design to finance : enabling a co-operative developer platform through automated design and valuation .

Degree: Department of Architecture, 2017, MIT

URL: http://hdl.handle.net/1721.1/115439

► Significant shifts in technology and finance are altering the practice and position of urban design and development. These shifts - the torrent of micro-spatialized data,… (more)

▼ Significant shifts in technology and finance are altering the practice and position of urban design and development. These shifts - the torrent of micro-spatialized data, the amplification of designer instrumentality through computation, and the financialization of built capital into abstract securities - are forming a new relational infrastructure propelling the production of the built environment. Currently, coupling these shifts together remains the specialty of well-capitalized and sophisticated institutions, but the march of technological progress forecasts the widespread democratization of urban development skills and knowledge. This thesis explores the potential outcomes from mass accessibility to urban data, design computation, and digitized financing. I present two patent propositions outlining design methods that culminate in a project deploying network effects through collectively-financed, mass-distributed developments. The project is situated in three neighborhoods of New York City, on three-dozen sites for one-thousand inhabitants, and the methodology consists of three design computation processes. The first is a method for the automated re-massing of urban typologies using procedural scripting and a geometry constraint engine, in order to achieve open-space and density targets. The second is the automated valuation of a real estate development project using projected cash flows and construction cost estimations. Lastly, an optimization method matches suites of sites, project-massings, and financing arrangements; demonstrating the ability for the inhabitants' spatial needs to be met within financial constraints. Assuming that these technologies will be in widespread use evokes a vision for clusters of households to collectively originate, fund, and construct networks of mutually co-dependent developments. With the ability to operationalize a co-ownership model of distributed live-work spaces, self-organizing groups will have a dramatically expanded capability to influence the design and use of urban fabric - in practice, a Lefebvrian 'right to the city'. Advisors/Committee Members: Mark Goulthorpe (advisor).

Subjects/Keywords: Architecture.

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APA (6^th Edition):

Fink, Daniel, S. M. M. I. o. (2017). Linking design to finance : enabling a co-operative developer platform through automated design and valuation . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115439

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

Chicago Manual of Style (16^th Edition):

Fink, Daniel, S M Massachusetts Institute of. “Linking design to finance : enabling a co-operative developer platform through automated design and valuation .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115439.

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

MLA Handbook (7^th Edition):

Fink, Daniel, S M Massachusetts Institute of. “Linking design to finance : enabling a co-operative developer platform through automated design and valuation .” 2017. Web. 17 Jun 2019.

Vancouver:

Fink, Daniel SMMIo. Linking design to finance : enabling a co-operative developer platform through automated design and valuation . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115439.

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

Council of Science Editors:

Fink, Daniel SMMIo. Linking design to finance : enabling a co-operative developer platform through automated design and valuation . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115439

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

MIT

4. Villalon, Rachelle B. (Rachelle Bentajado). Data mining, inference, and predictive analytics for the built environment with images, text, and WiFi data .

Degree: Department of Architecture, 2017, MIT

URL: http://hdl.handle.net/1721.1/115448

► What can campus WiFi data tell us about life at MIT? What can thousands of images tell us about the way people see and occupy… (more)

Subjects/Keywords: Architecture.

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APA (6^th Edition):

Villalon, R. B. (. (2017). Data mining, inference, and predictive analytics for the built environment with images, text, and WiFi data . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115448

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

Chicago Manual of Style (16^th Edition):

Villalon, Rachelle B (Rachelle. “Data mining, inference, and predictive analytics for the built environment with images, text, and WiFi data .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115448.

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

MLA Handbook (7^th Edition):

Villalon, Rachelle B (Rachelle. “Data mining, inference, and predictive analytics for the built environment with images, text, and WiFi data .” 2017. Web. 17 Jun 2019.

Vancouver:

Villalon RB(. Data mining, inference, and predictive analytics for the built environment with images, text, and WiFi data . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115448.

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

Council of Science Editors:

Villalon RB(. Data mining, inference, and predictive analytics for the built environment with images, text, and WiFi data . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115448

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

MIT

5. Brophy, Jennifer Ann Noelani. Synthetic biology approaches for engineering diverse bacterial species .

Degree: Department of Biological Engineering, 2016, MIT

URL: http://hdl.handle.net/1721.1/115449

► When engineers control gene expression, cells can be re-programmed to create living therapeutics or materials by initiating expression of biosynthetic pathways in response to specific… (more)

Subjects/Keywords: Biological Engineering.

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APA (6^th Edition):

Brophy, J. A. N. (2016). Synthetic biology approaches for engineering diverse bacterial species . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115449

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

Chicago Manual of Style (16^th Edition):

Brophy, Jennifer Ann Noelani. “Synthetic biology approaches for engineering diverse bacterial species .” 2016. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115449.

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

MLA Handbook (7^th Edition):

Brophy, Jennifer Ann Noelani. “Synthetic biology approaches for engineering diverse bacterial species .” 2016. Web. 17 Jun 2019.

Vancouver:

Brophy JAN. Synthetic biology approaches for engineering diverse bacterial species . [Internet] [Thesis]. MIT; 2016. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115449.

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

Council of Science Editors:

Brophy JAN. Synthetic biology approaches for engineering diverse bacterial species . [Thesis]. MIT; 2016. Available from: http://hdl.handle.net/1721.1/115449

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

MIT

6. Yuan, Andy H. (Andy Han). Prion biology in the context of bacteria .

Degree: Department of Biology, 2015, MIT

URL: http://hdl.handle.net/1721.1/115450

► Prions are infectious amyloid aggregates first described in the context of mammalian neurodegenerative diseases collectively known as the transmissible spongiform encephalopathies. Prions have also been… (more)

Subjects/Keywords: Biology.

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APA (6^th Edition):

Yuan, A. H. (. H. (2015). Prion biology in the context of bacteria . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115450

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

Chicago Manual of Style (16^th Edition):

Yuan, Andy H (Andy Han). “Prion biology in the context of bacteria .” 2015. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115450.

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

MLA Handbook (7^th Edition):

Yuan, Andy H (Andy Han). “Prion biology in the context of bacteria .” 2015. Web. 17 Jun 2019.

Vancouver:

Yuan AH(H. Prion biology in the context of bacteria . [Internet] [Thesis]. MIT; 2015. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115450.

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

Council of Science Editors:

Yuan AH(H. Prion biology in the context of bacteria . [Thesis]. MIT; 2015. Available from: http://hdl.handle.net/1721.1/115450

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

MIT

7. Gui, Dan Y. (Dan Yi). The role of respiration in supporting cell proliferation .

Degree: Department of Biology, 2017, MIT

URL: http://hdl.handle.net/1721.1/115451

► Compared to non-proliferating cells, proliferating cells such as cancer cells have additional metabolic requirements for generating biomass. However, despite these additional requirements the components of… (more)

▼ Compared to non-proliferating cells, proliferating cells such as cancer cells have additional metabolic requirements for generating biomass. However, despite these additional requirements the components of the mammalian metabolic network in both proliferating and non-proliferating cells are largely the same. Thus, in order to balance the competing anabolic and catabolic needs of a proliferating cell, the same metabolic networks components must take on distinct roles. Understanding how the various network components support proliferation may lead to improvements in cancer therapy. It has long been known that mitochondrial respiration is essential for proliferation. However, the precise metabolic role that is filled by respiration is not well defined. This thesis focuses on understanding the role of respiration in supporting mammalian proliferation. In non-proliferating cells respiration is considered to be primarily an ATP-producing catabolic process. We find that in proliferating cells, respiration serves a crucial anabolic role by providing access to an electron acceptor in the form of molecular oxygen. Electron acceptor availability is required for maintaining NAD+/NADH homeostasis and supporting aspartate synthesis. In conditions where alternative electron acceptors are provided such that cells can maintain NAD+/NADH homeostasis through alternative pathways, or when exogenous aspartate is provided, respiration is dispensable for proliferation. These findings highlight that metabolic dependencies can be modified by environmental conditions. Consistent with this, we find that altering NAD+/NADH homeostasis through alternative pathways or providing exogenous aspartate can modulate cellular sensitivity to respiration inhibitors such as metformin. Collectively, these studies contribute to an understanding of how metabolism supports biomass generation for proliferation and offers insight to how metabolism could be targeted for cancer therapy. Advisors/Committee Members: Matthew G. Vander Heiden (advisor).

Subjects/Keywords: Biology.

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APA (6^th Edition):

Gui, D. Y. (. Y. (2017). The role of respiration in supporting cell proliferation . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115451

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

Chicago Manual of Style (16^th Edition):

Gui, Dan Y (Dan Yi). “The role of respiration in supporting cell proliferation .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115451.

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

MLA Handbook (7^th Edition):

Gui, Dan Y (Dan Yi). “The role of respiration in supporting cell proliferation .” 2017. Web. 17 Jun 2019.

Vancouver:

Gui DY(Y. The role of respiration in supporting cell proliferation . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115451.

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

Council of Science Editors:

Gui DY(Y. The role of respiration in supporting cell proliferation . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115451

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

MIT

8. Briccetti, Angelo (Angelo J.). An analysis of the spreading of radionuclides from a vent of an offshore floating nuclear power plant .

Degree: Department of Nuclear Science and Engineering, 2015, MIT

URL: http://hdl.handle.net/1721.1/115452

► The offshore floating nuclear power plant (OFNP), is a new power plant design which provides for both increased safety and extra barriers to separate its… (more)

Subjects/Keywords: Nuclear Science and Engineering.

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APA (6^th Edition):

Briccetti, A. (. J. ). (2015). An analysis of the spreading of radionuclides from a vent of an offshore floating nuclear power plant . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115452

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

Chicago Manual of Style (16^th Edition):

Briccetti, Angelo (Angelo J ). “An analysis of the spreading of radionuclides from a vent of an offshore floating nuclear power plant .” 2015. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115452.

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

MLA Handbook (7^th Edition):

Briccetti, Angelo (Angelo J ). “An analysis of the spreading of radionuclides from a vent of an offshore floating nuclear power plant .” 2015. Web. 17 Jun 2019.

Vancouver:

Briccetti A(J). An analysis of the spreading of radionuclides from a vent of an offshore floating nuclear power plant . [Internet] [Thesis]. MIT; 2015. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115452.

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

Council of Science Editors:

Briccetti A(J). An analysis of the spreading of radionuclides from a vent of an offshore floating nuclear power plant . [Thesis]. MIT; 2015. Available from: http://hdl.handle.net/1721.1/115452

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

MIT

9. Heman-Ackah, Marian. Redesign of the platform-side actuation system for the Kendall Band interactive musical sculpture .

Degree: Department of Mechanical Engineering, 2017, MIT

URL: http://hdl.handle.net/1721.1/115453

► The Kendall Band is an interactive musical sculpture by Paul Matisse located within the MBTA's Kendall/MIT Train Station. The sculpture, installed in 1987, consists of… (more)

Subjects/Keywords: Mechanical Engineering.

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APA (6^th Edition):

Heman-Ackah, M. (2017). Redesign of the platform-side actuation system for the Kendall Band interactive musical sculpture . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115453

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

Chicago Manual of Style (16^th Edition):

Heman-Ackah, Marian. “Redesign of the platform-side actuation system for the Kendall Band interactive musical sculpture .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115453.

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

MLA Handbook (7^th Edition):

Heman-Ackah, Marian. “Redesign of the platform-side actuation system for the Kendall Band interactive musical sculpture .” 2017. Web. 17 Jun 2019.

Vancouver:

Heman-Ackah M. Redesign of the platform-side actuation system for the Kendall Band interactive musical sculpture . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115453.

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

Council of Science Editors:

Heman-Ackah M. Redesign of the platform-side actuation system for the Kendall Band interactive musical sculpture . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115453

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

MIT

10. Skowronski, Natasha (Natasha C.). Telluridm-induced corrosion of structural alloys for nuclear applications in molten salts .

Degree: Department of Nuclear Science and Engineering, 2017, MIT

URL: http://hdl.handle.net/1721.1/115454

► The mechanism by which tellurium causes intergranular corrosion (IGC) of structural alloys in molten salt reactors is currently poorly understood. Limited corrosion testing has been… (more)

Subjects/Keywords: Nuclear Science and Engineering.

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APA (6^th Edition):

Skowronski, N. (. C. ). (2017). Telluridm-induced corrosion of structural alloys for nuclear applications in molten salts . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115454

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

Chicago Manual of Style (16^th Edition):

Skowronski, Natasha (Natasha C ). “Telluridm-induced corrosion of structural alloys for nuclear applications in molten salts .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115454.

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

MLA Handbook (7^th Edition):

Skowronski, Natasha (Natasha C ). “Telluridm-induced corrosion of structural alloys for nuclear applications in molten salts .” 2017. Web. 17 Jun 2019.

Vancouver:

Skowronski N(C). Telluridm-induced corrosion of structural alloys for nuclear applications in molten salts . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115454.

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

Council of Science Editors:

Skowronski N(C). Telluridm-induced corrosion of structural alloys for nuclear applications in molten salts . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115454

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

MIT

11. Schmidt, Kristina (Kristina E.). After treatment and turbocharger effects on emissions of a diesel engine .

Degree: Department of Mechanical Engineering, 2017, MIT

URL: http://hdl.handle.net/1721.1/115455

► An experimental study on the effects of after treatments and a turbocharger on emissions of a single cylinder diesel engine. The study measured the concentration… (more)

Subjects/Keywords: Mechanical Engineering.

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APA (6^th Edition):

Schmidt, K. (. E. ). (2017). After treatment and turbocharger effects on emissions of a diesel engine . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115455

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

Chicago Manual of Style (16^th Edition):

Schmidt, Kristina (Kristina E ). “After treatment and turbocharger effects on emissions of a diesel engine .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115455.

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

MLA Handbook (7^th Edition):

Schmidt, Kristina (Kristina E ). “After treatment and turbocharger effects on emissions of a diesel engine .” 2017. Web. 17 Jun 2019.

Vancouver:

Schmidt K(E). After treatment and turbocharger effects on emissions of a diesel engine . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115455.

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

Council of Science Editors:

Schmidt K(E). After treatment and turbocharger effects on emissions of a diesel engine . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115455

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

MIT

12. Arthur, Kwabena (Kwabena K.). Simulation of X-ray phase imaging on integrated circuits .

Degree: Department of Mechanical Engineering, 2017, MIT

URL: http://hdl.handle.net/1721.1/115456

► A study on the simulation of the X-Ray phase imaging on multi-layered integrated circuits (IC) is presented. Model IC's were created with random nanoscale features.… (more)

Subjects/Keywords: Mechanical Engineering.

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APA (6^th Edition):

Arthur, K. (. K. ). (2017). Simulation of X-ray phase imaging on integrated circuits . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115456

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

Chicago Manual of Style (16^th Edition):

Arthur, Kwabena (Kwabena K ). “Simulation of X-ray phase imaging on integrated circuits .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115456.

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

MLA Handbook (7^th Edition):

Arthur, Kwabena (Kwabena K ). “Simulation of X-ray phase imaging on integrated circuits .” 2017. Web. 17 Jun 2019.

Vancouver:

Arthur K(K). Simulation of X-ray phase imaging on integrated circuits . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115456.

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

Council of Science Editors:

Arthur K(K). Simulation of X-ray phase imaging on integrated circuits . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115456

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

MIT

13. Mohit, Mrinal. Automated histopathological analyses at scale .

Degree: 2017, MIT

URL: http://hdl.handle.net/1721.1/115457

► Histopathology is the microscopic examination of processed human tissues to diagnose conditions like cancer, tuberculosis, anemia and myocardial infractions. The diagnostic procedure is, however, very… (more)

Subjects/Keywords: Program in Media Arts and Sciences ()

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APA (6^th Edition):

Mohit, M. (2017). Automated histopathological analyses at scale . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115457

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

Chicago Manual of Style (16^th Edition):

Mohit, Mrinal. “Automated histopathological analyses at scale .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115457.

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

MLA Handbook (7^th Edition):

Mohit, Mrinal. “Automated histopathological analyses at scale .” 2017. Web. 17 Jun 2019.

Vancouver:

Mohit M. Automated histopathological analyses at scale . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115457.

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

Council of Science Editors:

Mohit M. Automated histopathological analyses at scale . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115457

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

MIT

14. Walters, Tobias J. Understanding the value proposition unmanned aerial systems provide during the phases of the crop Cycle .

Degree: 2015, MIT

URL: http://hdl.handle.net/1721.1/115458

► Increasing crop productivity is a challenge as old as human history. Advancements in technology have allowed farmers to produce ever-increasing amounts of food on a… (more)

▼ Increasing crop productivity is a challenge as old as human history. Advancements in technology have allowed farmers to produce ever-increasing amounts of food on a given amount of land. With the world's population expected to reach roughly nine billion by 2050 (United Nations 2013), the demand for food will require increasingly improved methods of agricultural production. One of these potential methods is the use of unmanned aerial vehicles (UAVs) to monitor crop health and identify potential issues. This thesis will explore how current stakeholders plan to utilize this technology and the perceived value they believe it will deliver across the various phases of the crop cycle. This thesis begins by reviewing modem precision agriculture management practices and discussing how remote sensing plays a role in improving the efficiency of these types of farming methods. It also identifies a number of challenges facing the industry to include the impact of current regulations on the market. This thesis develops a stakeholder value network that clarifies the tangible and intangible value exchanges between the focal organization and its stakeholders. As well as constructing an OPM (Object Process Methodology) model to describe the system and demonstrate the stakeholder interactions and system process and sub-process decomposition. It also provides visual display of how the value is delivered across these processes. The final aspect of the research for this thesis is to identifies the lead users for these systems and determines how they measure the value of the data provided by UAVs for remote sensing and crop management decisions in support of farming operations. The value proposition for the various crop phases and the ideal uses cases discussed by lead users in this thesis may be used to guide future research in agriculture technology development, and drive further innovation in the emerging field of commercial unmanned aerial system use. Advisors/Committee Members: Joan Rubin (advisor).

Subjects/Keywords: Engineering and Management Program.; System Design and Management Program.

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APA (6^th Edition):

Walters, T. J. (2015). Understanding the value proposition unmanned aerial systems provide during the phases of the crop Cycle . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115458

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

Chicago Manual of Style (16^th Edition):

Walters, Tobias J. “Understanding the value proposition unmanned aerial systems provide during the phases of the crop Cycle .” 2015. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115458.

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

MLA Handbook (7^th Edition):

Walters, Tobias J. “Understanding the value proposition unmanned aerial systems provide during the phases of the crop Cycle .” 2015. Web. 17 Jun 2019.

Vancouver:

Walters TJ. Understanding the value proposition unmanned aerial systems provide during the phases of the crop Cycle . [Internet] [Thesis]. MIT; 2015. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115458.

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

Council of Science Editors:

Walters TJ. Understanding the value proposition unmanned aerial systems provide during the phases of the crop Cycle . [Thesis]. MIT; 2015. Available from: http://hdl.handle.net/1721.1/115458

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

MIT

15. Gelfond, Claudia E. (Claudia Elisabeth). Photochemical transformation of particulate organic carbon and its impact on mercury cycling in aqueous systems .

Degree: Department of Civil and Environmental Engineering, 2017, MIT

URL: http://hdl.handle.net/1721.1/115459

► Mercury (Hg) is a global pollutant with high toxicity that accumulates in biota and biomagnifies, posing a risk to organisms throughout the food chain. Mercury… (more)

▼ Mercury (Hg) is a global pollutant with high toxicity that accumulates in biota and biomagnifies, posing a risk to organisms throughout the food chain. Mercury is known to strongly associate with natural organic matter (NOM), which, in turn, affects its speciation, solubility, mobility and toxicity. Numerous studies have examined Hg coordination with dissolved organic carbon (DOC), an important aqueous constituent that alters the reactivity and fate of Hg primarily through complexation with carboxyl and reduced sulfur (e.g. sulfhydryl) groups. However, less is understood of Hg reactions with particulate organic matter (POM), an important reservoir of NOM found within soils, sediments, and suspended in aqueous systems. Moreover, the chemistry of NOM changes when irradiated by sunlight, altering the composition and distribution of functional groups available for complexation with aqueous Hg. Accordingly, we investigate Hg complexation with POM derived from a natural source, Phragmites australis ("common reed"), and examined how photochemical processes impact Hg adsorption through chemical alteration of POM. Mercury adsorption to irradiated and non-irradiated POM was examined through performing isotherm experiments, using an environmentally-relevant range of Hg concentrations (2-500 ppb). First, we find that non-irradiated POM is a powerful sorbent of Hg²+. Adsorption characteristics are indeed altered during POM photolysis, with a three-fold (based on Kd) increase in Hg adsorption observed for irradiated POM compared to dark controls. Further, we examine the speciation and oxidation state of adsorbed Hg²+, and deciphered functional groups that contribute to mercury association with POM. Measurements of C, S, and Hg speciation and oxidation state were performed using synchrotron-based X-ray adsorption spectroscopy (XAS) and scanning transmission x-ray microscopy (STXM). These revealed a marked decrease in POM-reduced sulfur following irradiation, leading to fewer R-SH groups capable of strongly binding Hg. However, decreased Hg binding to irradiated POM was not observed owing to a large increase in the quantity of carboxyl groups formed through photochemical processes, which resulted in a higher overall capacity of irradiated POM to bind Hg. The large capacity of POM for binding Hg, as well as enhanced Hg binding following irradiation illustrates that POM is a chemically dynamic pool of NOM that warrants consideration when evaluating reservoirs and processes governing the global Hg cycle. Advisors/Committee Members: Benjamin Kocar (advisor).

Subjects/Keywords: Civil and Environmental Engineering.

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APA (6^th Edition):

Gelfond, C. E. (. (2017). Photochemical transformation of particulate organic carbon and its impact on mercury cycling in aqueous systems . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115459

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

Chicago Manual of Style (16^th Edition):

Gelfond, Claudia E (Claudia. “Photochemical transformation of particulate organic carbon and its impact on mercury cycling in aqueous systems .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115459.

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

MLA Handbook (7^th Edition):

Gelfond, Claudia E (Claudia. “Photochemical transformation of particulate organic carbon and its impact on mercury cycling in aqueous systems .” 2017. Web. 17 Jun 2019.

Vancouver:

Gelfond CE(. Photochemical transformation of particulate organic carbon and its impact on mercury cycling in aqueous systems . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115459.

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

Council of Science Editors:

Gelfond CE(. Photochemical transformation of particulate organic carbon and its impact on mercury cycling in aqueous systems . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115459

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

MIT

16. Schiff, Philippe. Tipsy .

Degree: Department of Electrical Engineering and Computer Science, 2015, MIT

URL: http://hdl.handle.net/1721.1/115461

► In this document I describe Tipsy. Today's models for paying online content creators are inadequate. With Tipsy, the idea of Voluntary Microdonations is revisited and… (more)

Subjects/Keywords: Electrical Engineering and Computer Science.

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APA (6^th Edition):

Schiff, P. (2015). Tipsy . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115461

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

Chicago Manual of Style (16^th Edition):

Schiff, Philippe. “Tipsy .” 2015. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115461.

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

MLA Handbook (7^th Edition):

Schiff, Philippe. “Tipsy .” 2015. Web. 17 Jun 2019.

Vancouver:

Schiff P. Tipsy . [Internet] [Thesis]. MIT; 2015. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115461.

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

Council of Science Editors:

Schiff P. Tipsy . [Thesis]. MIT; 2015. Available from: http://hdl.handle.net/1721.1/115461

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

MIT

17. Wu, Kevin (Kevin L.). DeepTuner : a system for search technique recommendation in program autotuning ; Deep Tuner : a system for search technique recommendation in program autotuning ; System for search technique recommendation in program autotuning .

Degree: Department of Electrical Engineering and Computer Science, 2015, MIT

URL: http://hdl.handle.net/1721.1/115462

► OpenTuner can help users achieve better or more portable performance in their specific domain through program autotuning. A key challenge for users seeking good autotuning… (more)

Subjects/Keywords: Electrical Engineering and Computer Science.

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APA (6^th Edition):

Wu, K. (. L. ). (2015). DeepTuner : a system for search technique recommendation in program autotuning ; Deep Tuner : a system for search technique recommendation in program autotuning ; System for search technique recommendation in program autotuning . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115462

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

Chicago Manual of Style (16^th Edition):

Wu, Kevin (Kevin L ). “DeepTuner : a system for search technique recommendation in program autotuning ; Deep Tuner : a system for search technique recommendation in program autotuning ; System for search technique recommendation in program autotuning .” 2015. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115462.

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

MLA Handbook (7^th Edition):

Wu, Kevin (Kevin L ). “DeepTuner : a system for search technique recommendation in program autotuning ; Deep Tuner : a system for search technique recommendation in program autotuning ; System for search technique recommendation in program autotuning .” 2015. Web. 17 Jun 2019.

Vancouver:

Wu K(L). DeepTuner : a system for search technique recommendation in program autotuning ; Deep Tuner : a system for search technique recommendation in program autotuning ; System for search technique recommendation in program autotuning . [Internet] [Thesis]. MIT; 2015. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115462.

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

Council of Science Editors:

Wu K(L). DeepTuner : a system for search technique recommendation in program autotuning ; Deep Tuner : a system for search technique recommendation in program autotuning ; System for search technique recommendation in program autotuning . [Thesis]. MIT; 2015. Available from: http://hdl.handle.net/1721.1/115462

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

MIT

18. Rice, Abigail C. Design and simulation of a 20 Gbps communication channel .

Degree: Department of Electrical Engineering and Computer Science, 2015, MIT

URL: http://hdl.handle.net/1721.1/115463

► Digital wire-line communication speeds are increasing rapidly to achieve ever higher data rates. Speeds beyond 20Gpbs are desirable for the next generation of protocols. However,… (more)

Subjects/Keywords: Electrical Engineering and Computer Science.

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APA (6^th Edition):

Rice, A. C. (2015). Design and simulation of a 20 Gbps communication channel . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115463

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

Chicago Manual of Style (16^th Edition):

Rice, Abigail C. “Design and simulation of a 20 Gbps communication channel .” 2015. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115463.

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

MLA Handbook (7^th Edition):

Rice, Abigail C. “Design and simulation of a 20 Gbps communication channel .” 2015. Web. 17 Jun 2019.

Vancouver:

Rice AC. Design and simulation of a 20 Gbps communication channel . [Internet] [Thesis]. MIT; 2015. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115463.

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

Council of Science Editors:

Rice AC. Design and simulation of a 20 Gbps communication channel . [Thesis]. MIT; 2015. Available from: http://hdl.handle.net/1721.1/115463

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

MIT

19. Swanberg, Cassandra. Characterizing the evolution of porosity and permeability in porous media undergoing pressure solution creep.

Degree: Department of Earth, Atmospheric, and Planetary Sciences, 2012, MIT

URL: http://hdl.handle.net/1721.1/115465

► This work looks at the change in pore-scale morphological properties such as porosity and permeability using modeled sphere packs. The effects of varying pressure, temperature,… (more)

Subjects/Keywords: Chemical Engineering.; Earth, Atmospheric, and Planetary Sciences.

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APA (6^th Edition):

Swanberg, C. (2012). Characterizing the evolution of porosity and permeability in porous media undergoing pressure solution creep. (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115465

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

Chicago Manual of Style (16^th Edition):

Swanberg, Cassandra. “Characterizing the evolution of porosity and permeability in porous media undergoing pressure solution creep. ” 2012. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115465.

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

MLA Handbook (7^th Edition):

Swanberg, Cassandra. “Characterizing the evolution of porosity and permeability in porous media undergoing pressure solution creep. ” 2012. Web. 17 Jun 2019.

Vancouver:

Swanberg C. Characterizing the evolution of porosity and permeability in porous media undergoing pressure solution creep. [Internet] [Thesis]. MIT; 2012. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115465.

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

Council of Science Editors:

Swanberg C. Characterizing the evolution of porosity and permeability in porous media undergoing pressure solution creep. [Thesis]. MIT; 2012. Available from: http://hdl.handle.net/1721.1/115465

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

MIT

20. Chan, Gabriel Angelo Sherak. Trade and the environment : the political economy of CO₂ emission leakage with analysis of the steel and oil sands industries ; Political economy of CO₂ emission leakage with analysis of the steel and oil sands industries .

Degree: Department of Earth, Atmospheric, and Planetary Sciences, 2009, MIT

URL: http://hdl.handle.net/1721.1/115466

► Introduction: In 2007, scientists and governmental officials from around the world contributed to the United Nations-authorized Intergovernmental Panel on Climate Change's (IPCC) Fourth Assessment Report.… (more)

Subjects/Keywords: Political Science.; Earth, Atmospheric, and Planetary Sciences.

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APA (6^th Edition):

Chan, G. A. S. (2009). Trade and the environment : the political economy of CO₂ emission leakage with analysis of the steel and oil sands industries ; Political economy of CO₂ emission leakage with analysis of the steel and oil sands industries . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115466

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

Chicago Manual of Style (16^th Edition):

Chan, Gabriel Angelo Sherak. “Trade and the environment : the political economy of CO₂ emission leakage with analysis of the steel and oil sands industries ; Political economy of CO₂ emission leakage with analysis of the steel and oil sands industries .” 2009. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115466.

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

MLA Handbook (7^th Edition):

Chan, Gabriel Angelo Sherak. “Trade and the environment : the political economy of CO₂ emission leakage with analysis of the steel and oil sands industries ; Political economy of CO₂ emission leakage with analysis of the steel and oil sands industries .” 2009. Web. 17 Jun 2019.

Vancouver:

Chan GAS. Trade and the environment : the political economy of CO₂ emission leakage with analysis of the steel and oil sands industries ; Political economy of CO₂ emission leakage with analysis of the steel and oil sands industries . [Internet] [Thesis]. MIT; 2009. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115466.

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

Council of Science Editors:

Chan GAS. Trade and the environment : the political economy of CO₂ emission leakage with analysis of the steel and oil sands industries ; Political economy of CO₂ emission leakage with analysis of the steel and oil sands industries . [Thesis]. MIT; 2009. Available from: http://hdl.handle.net/1721.1/115466

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

MIT

21. Ranka, Mikhil Ajay. Conformational investigations of a model polyzwitterion and its applications in oil recovery .

Degree: Department of Chemical Engineering, 2017, MIT

URL: http://hdl.handle.net/1721.1/115467

► In recent years, nanoparticles have demonstrated immense promise for the development of next generation technologies for subsurface reservoir characterization and oil recovery. Until now however,… (more)

▼ In recent years, nanoparticles have demonstrated immense promise for the development of next generation technologies for subsurface reservoir characterization and oil recovery. Until now however, the scope of such nanoparticles has been limited due to the significant challenge of colloidal stabilization under the extreme salinity and high temperature conditions typical of a reservoir. Previous efforts to address this problem have focused on conventional polyelectrolyte based stabilizers, which unfortunately fail at high ionic strengths due to excessive charge screening. In this thesis, we demonstrate a new approach to stabilization that overcomes this key deficiency, by specifically taking advantage of the excessive charge screening afforded by high ionic strengths. The approach is based on the anti-polyelectrolyte phenomenon, in which screening of intra-chain electrostatic interactions causes a polyzwitterion to undergo a structural transition from a collapsed globule to a more open coil-like regime. We first fundamentally investigate the anti-polyelectrolyte phenomenon in a high density comb type polyzwitterion, poly(sulfobetaine methacrylamide) (polySBMA), via small angle neutron scattering. The phenomenon is probed at a range of molecular weights by utilizing low dispersity homopolymers synthesized via controlled radical polymerization methods. Unique non gaussian behavior with significant molecular weight dependencies of size and shape is observed. An electrostatic dependence for Kuhn length is also established. Subsequently, we extend our understanding of anti-polyelectrolyte systems by characterizing the conformational dependence of polySBMA under conditions such that its responsive swelling is confined due to the segments being bound in three, six and twelve armed star architectures. Chain stretching due to solid angle exclusion, as well as, strong dependencies of size and fractal dimension on electrolyte concentration, number of arms and degree of polymerization (per arm) are noted. After gaining a detailed insight of the anti-polyelectrolyte phenomenon, its unique osmotic response is engineered into electrolyte and temperature responsive polyzwitterionic stabilizers. Robust colloidal stability of silica and polystyrene nanoparticles under reservoir relevant conditions is demonstrated, and the design principles of developing colloidally stable nanoparticles are elucidated. Finally, the polyzwitterion functionalized nanoparticles are leveraged in the form of schizophrenic diblock copolymer functionalized nanoparticles, to develop temperature tunable pickering emulsifiers. In contrast to conventional temperature responsive pickering emulsifiers, which induce phase separation upon heating, the schizophrenic diblock copolymer functionalized nanoparticles are demonstrated to function in the reverse direction, by inducing demulsification upon cooling. The unique temperature response is noted to be cyclable, and is likely to render the particles of important utility in enhanced oil recovery demulsification. Advisors/Committee Members: T. Alan Hatton (advisor).

Subjects/Keywords: Chemical Engineering.

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APA (6^th Edition):

Ranka, M. A. (2017). Conformational investigations of a model polyzwitterion and its applications in oil recovery . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115467

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

Chicago Manual of Style (16^th Edition):

Ranka, Mikhil Ajay. “Conformational investigations of a model polyzwitterion and its applications in oil recovery .” 2017. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115467.

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

MLA Handbook (7^th Edition):

Ranka, Mikhil Ajay. “Conformational investigations of a model polyzwitterion and its applications in oil recovery .” 2017. Web. 17 Jun 2019.

Vancouver:

Ranka MA. Conformational investigations of a model polyzwitterion and its applications in oil recovery . [Internet] [Thesis]. MIT; 2017. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115467.

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

Council of Science Editors:

Ranka MA. Conformational investigations of a model polyzwitterion and its applications in oil recovery . [Thesis]. MIT; 2017. Available from: http://hdl.handle.net/1721.1/115467

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

22. Galle, Virgile. Optimization models and methods for storage yard operations in maritime container terminals .

Degree: Operations Research Center, 2018, MIT

URL: http://hdl.handle.net/1721.1/115592

► Container terminals, where containers are transferred between different modes of transportation both on the seaside and landside, are crucial links in intercontinental supply chains. The… (more)

▼ Container terminals, where containers are transferred between different modes of transportation both on the seaside and landside, are crucial links in intercontinental supply chains. The rapid growth of container shipping and the increasing competitive pressure to lower rates result in demand for higher productivity. In this thesis, we design new models and methods for the combinatorial optimization problems representing storage yard operations in maritime container terminals. The goal is to increase the efficiency of yard cranes by decreasing unproductive container moves (also called relocations). We consider three problems with applicability to real-time operations. First, we study the container relocation problem that involves finding a sequence of container moves that minimizes the number of relocations needed to retrieve all containers, while respecting a given order of retrieval. We propose a new binary integer program model, perform an asymptotic average case analysis, and show that our methods can apply to other storage systems where stacking occurs. Second, we relax the assumption that the full retrieval order of containers is known in advance and study the stochastic container relocation problem. We introduce a new model, compare it with an existing one, and develop two new algorithms for both models based on decision trees and new heuristics. We show that techniques in this chapter apply more generally to finite horizon stochastic optimization problems with bounded cost functions. Third, we consider the integrated container relocation problem and yard crane scheduling problem to find an optimal sequence of scheduled crane moves that perform the required container movements. Taking into account practical constraints, we present a new model, propose a binary integer program using a network flow-type formulation, and design an efficient heuristic procedure for real-time operations based on properties of our mathematical formulation. We relate this problem to pick-up and delivery problems with a single vehicle and capacities at every node. In all three chapters, the efficiency of all our algorithms are shown through extensive computational experiments on available problem instances from the literature and/or on real data. Advisors/Committee Members: Cynthia Barnhart, Jaillet (advisor).

Subjects/Keywords: Operations Research Center.

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APA (6^th Edition):

Galle, V. (2018). Optimization models and methods for storage yard operations in maritime container terminals . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115592

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

Chicago Manual of Style (16^th Edition):

Galle, Virgile. “Optimization models and methods for storage yard operations in maritime container terminals .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115592.

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

MLA Handbook (7^th Edition):

Galle, Virgile. “Optimization models and methods for storage yard operations in maritime container terminals .” 2018. Web. 17 Jun 2019.

Vancouver:

Galle V. Optimization models and methods for storage yard operations in maritime container terminals . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115592.

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

Council of Science Editors:

Galle V. Optimization models and methods for storage yard operations in maritime container terminals . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115592

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

23. Fernández González, Enrique, Ph. D. Massachusetts Institute of Technology. Generative multi-robot task and motion planning over long horizons .

Degree: Department of Aeronautics and Astronautics, 2018, MIT

URL: http://hdl.handle.net/1721.1/115594

► The state of the art practice in robotics planning is to script behaviors manually, where each behavior is typically precomputed in advance. However, in order… (more)

▼ The state of the art practice in robotics planning is to script behaviors manually, where each behavior is typically precomputed in advance. However, in order for robots to be able to act robustly and adapt to novel situations, they need to be able to plan sequences of behaviors and activities autonomously. Since the conditions and effects of these behaviors are tightly coupled through time, state and control variables, many problems require that the tasks of activity planning and trajectory optimization are considered together. There are two key issues underlying effective hybrid activity and trajectory planning: the sufficiently accurate modeling of robot dynamics and the capability of planning over long horizons. Hybrid activity and trajectory planners that employ mixed integer programming within a discrete time formulation are able to accurately model complex dynamics for robot vehicles, but are often restricted to relatively short horizons. On the other hand, current hybrid activity planners that employ continuous time formulations can handle longer horizons but they only allow actions to have continuous effects with constant rate of change, and restrict the allowed state constraints to linear inequalities. This greatly limits the expressivity of the problems that these approaches can solve. In this work we present Scotty, a planning system for hybrid activity and trajectory planning problems. Unlike other continuous time planners, Scotty can solve a broad class of expressive robotic planning problems by supporting convex quadratic constraints on state variables and control variables that are jointly constrained and that affect multiple state variables simultaneously. In order to efficiently generate practical plans for coordinated mobile robots over long horizons, our approach employs recent methods in convex optimization combined with methods for planning with relaxed planning graphs and heuristic forward search. The contributions of this thesis are threefold. First, we introduce a convex, goal-directed scheduling and trajectory planning problem. To solve this problem, we present the ScottyConvexPath planner, which reformulates the problem as a Second Order Cone Program (SOCP). Our formulation allows us to efficiently compute robot trajectories with first order dynamics over long horizons. While straightforward formulations are not convex, we present a convex model that does not require state, control or time discretization. Second, we introduce the ScottyActivity planner, a state of the art hybrid activity and trajectory planner that interleaves heuristic forward search with delete relaxations and consistency checks using our convex model. Finally, we present ScottyPath, a qualitative state plan planner that computes control and obstacle-free state trajectories for robots in order to satisfy the temporally extended goals and constraints that ScottyActivity imposes. ScottyPath finds obstacle-free paths in which all robots are guaranteed to always remain within obstacle-free safe regions, which are computed in… Advisors/Committee Members: Brian C. Williams (advisor).

Subjects/Keywords: Aeronautics and Astronautics.

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APA (6^th Edition):

Fernández González, Enrique, P. D. M. (2018). Generative multi-robot task and motion planning over long horizons . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115594

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

Chicago Manual of Style (16^th Edition):

Fernández González, Enrique, Ph D Massachusetts. “Generative multi-robot task and motion planning over long horizons .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115594.

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

MLA Handbook (7^th Edition):

Fernández González, Enrique, Ph D Massachusetts. “Generative multi-robot task and motion planning over long horizons .” 2018. Web. 17 Jun 2019.

Vancouver:

Fernández González, Enrique PDM. Generative multi-robot task and motion planning over long horizons . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115594.

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

Council of Science Editors:

Fernández González, Enrique PDM. Generative multi-robot task and motion planning over long horizons . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115594

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

24. Dubbury, Sara Jane. Cdk12 regulates DNA repair Genes by suppressing intronic polyadenylation .

Degree: Department of Biology, 2018, MIT

URL: http://hdl.handle.net/1721.1/115596

► During transcription, cyclin-dependent kinases (CDKs) dynamically phosphorylate the C-terminal domain (CTD) of RNA Polymerase II (RNAPII) to recruit factors that coordinate transcription and mRNA biogenesis.… (more)

▼ During transcription, cyclin-dependent kinases (CDKs) dynamically phosphorylate the C-terminal domain (CTD) of RNA Polymerase II (RNAPII) to recruit factors that coordinate transcription and mRNA biogenesis. Cdk12 phosphorylates Serine 2 (Ser2) of the RNAPII CTD, a modification associated with the regulation of transcription elongation, splicing, and cleavage/polyadenylation. Unlike other transcriptional CDKs that regulate most expressed genes, Cdk12 depletion abrogates the expression of homologous recombination (HR) genes relatively specifically, suppressing the HR DNA damage repair pathway and sensitizing cells to genotoxic stresses that cause replication fork collapse, such as Parp1 inhibitors. The proposed role for Cdk12 in regulating HR is clinically significant for two reasons. First, Cdk12 loss-of-function mutations populate high-grade serous ovarian carcinoma and castration-resistant prostate tumors raising the possibility that Cdk12 mutational status may predict the effectiveness of chemotherapeutics that target HR-deficient tumors. Second, readily available small molecule inhibitors of Cdk12 induce sensitization of HR-competent tumors to Parp1 inhibitors in vivo raising the possibility that inhibitors against Cdk12 could be used as chemotherapeutics. Despite this growing clinical interest, the mechanism behind Cdk12's regulation of HR genes remains unknown. Here we show that Cdk12 suppresses intronic polyadenylation (IPA) and that this mechanism explains the exquisite sensitivity of HR genes to Cdk12 loss. We find that Cdk12 globally enhances transcription elongation rate to kinetically suppress IPA events. Many HR genes harbor multiple IPA sites per gene, and the cumulative effect of these sites accounts for the increased sensitivity of HR genes to Cdk12. Finally, we find evidence that Cdk12 LOF mutations and deletions cause upregulation of IPA sites in HR genes in human tumors. Our results define the mechanism by which Cdk12 regulates transcription, mRNA biogenesis, and the HR pathway. This work clarifies the biological function of CDK12 and underscores its potential both as a chemotherapeutic target and as a tumor biomarker. Advisors/Committee Members: Phillip A. Sharp (advisor).

Subjects/Keywords: Biology.

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APA (6^th Edition):

Dubbury, S. J. (2018). Cdk12 regulates DNA repair Genes by suppressing intronic polyadenylation . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115596

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

Chicago Manual of Style (16^th Edition):

Dubbury, Sara Jane. “Cdk12 regulates DNA repair Genes by suppressing intronic polyadenylation .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115596.

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

MLA Handbook (7^th Edition):

Dubbury, Sara Jane. “Cdk12 regulates DNA repair Genes by suppressing intronic polyadenylation .” 2018. Web. 17 Jun 2019.

Vancouver:

Dubbury SJ. Cdk12 regulates DNA repair Genes by suppressing intronic polyadenylation . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115596.

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

Council of Science Editors:

Dubbury SJ. Cdk12 regulates DNA repair Genes by suppressing intronic polyadenylation . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115596

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

25. Davis, Kimberly Ryan. Characterization of influenza A virus evolution in laboratory hosts .

Degree: Department of Biology, 2018, MIT

URL: http://hdl.handle.net/1721.1/115598

► Surveillance of influenza A virus (IAV) is conducted for many different hosts including humans, swine, poultry, and wild birds. The surveillance samples are screened by… (more)

Subjects/Keywords: Biology.

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APA (6^th Edition):

Davis, K. R. (2018). Characterization of influenza A virus evolution in laboratory hosts . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115598

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

Chicago Manual of Style (16^th Edition):

Davis, Kimberly Ryan. “Characterization of influenza A virus evolution in laboratory hosts .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115598.

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

MLA Handbook (7^th Edition):

Davis, Kimberly Ryan. “Characterization of influenza A virus evolution in laboratory hosts .” 2018. Web. 17 Jun 2019.

Vancouver:

Davis KR. Characterization of influenza A virus evolution in laboratory hosts . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115598.

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

Council of Science Editors:

Davis KR. Characterization of influenza A virus evolution in laboratory hosts . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115598

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

26. Farzadfard, Fahim. Scalable platforms for computation and memory in living cells .

Degree: Department of Biology, 2018, MIT

URL: http://hdl.handle.net/1721.1/115599

► Living cells are biological computers - constantly sensing, processing and responding to biological cues they receive over time and space. Devised by evolution, these biological… (more)

Subjects/Keywords: Biology.

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APA (6^th Edition):

Farzadfard, F. (2018). Scalable platforms for computation and memory in living cells . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115599

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

Chicago Manual of Style (16^th Edition):

Farzadfard, Fahim. “Scalable platforms for computation and memory in living cells .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115599.

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

MLA Handbook (7^th Edition):

Farzadfard, Fahim. “Scalable platforms for computation and memory in living cells .” 2018. Web. 17 Jun 2019.

Vancouver:

Farzadfard F. Scalable platforms for computation and memory in living cells . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115599.

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

Council of Science Editors:

Farzadfard F. Scalable platforms for computation and memory in living cells . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115599

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

27. Blynn, Kelly (Kelly Mavis). Accelerating bus electrification : enabling a sustainable transition to low carbon transportation systems .

Degree: Department of Civil and Environmental Engineering, 2018, MIT

URL: http://hdl.handle.net/1721.1/115600

► With growing agreement that credible pathways to zero carbon electricity exist, many support the notion that widespread electrification of the transportation sector will be an… (more)

▼ With growing agreement that credible pathways to zero carbon electricity exist, many support the notion that widespread electrification of the transportation sector will be an essential strategy for meeting scientifically-based midcentury climate goals. While transit buses have a relatively small impact on greenhouse gas emissions, they have a larger impact on urban air quality, have commercially available in-service electric models, and have historically commercialized clean technologies that enabled deployment in the rest of the heavy duty vehicle sector. This thesis seeks to understand what factors hinder or enable transit agencies to go beyond initial pilots to largely or wholly electrify their fleets, with the goal of understanding potential policies and strategies that could accelerate such a transition, without inhibiting existing or expanded transit service that also plays a key role in reducing carbon emissions, in order to improve local air pollution and support accelerated electrification of trucks and other heavy duty vehicles. Using public transit fleets in California, Kentucky, and Massachusetts as case studies, this thesis utilizes quantitative total cost of ownership and well-to-wheels greenhouse gas and air pollutant emissions analysis, and analysis of qualitative interviews with transit agency representatives to investigate the barriers, drivers, and potential solutions that could hinder or enable an accelerated yet sustainable transition to an electrified bus fleet. A total cost of ownership analysis reveals that electric buses may already be more cost effective than diesel buses in many case study utility service areas primarily due to fuel and maintenance cost savings, but are sensitive to key parameters such as annual mileage, electricity tariffs that vary widely by location, fossil fuel costs, policy context, and anticipated maintenance savings, and that cost savings from electric buses are likely to increase over time primarily due to anticipated reductions in battery costs and a faster increase in fossil fuel prices than electricity prices. While multiple agencies interviewed in California were planning to fully electrify their fleets, primarily due to political pressure and internal leadership, outside California where less supportive policies exist, fewer agencies were planning to procure additional electric buses, primarily due to high first cost and undesirable tradeoffs with maintaining or expanding transit service levels. Interview respondents reported other substantial barriers as well, such as oversubscribed discretionary grant programs, charging infrastructure costs, electricity costs, additional operational complexity, and performance uncertainty and risk, suggesting a need for multiple complementary policies to overcome these barriers and ensure agencies can transition to a new technology without impacting service. Important interventions identified include pursuing favorable electricity tariffs and electric charging infrastructure incentives through regulatory changes, and… Advisors/Committee Members: Frederick P. Salvucci (advisor).

Subjects/Keywords: Urban Studies and Planning.; Civil and Environmental Engineering.

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APA (6^th Edition):

Blynn, K. (. M. (2018). Accelerating bus electrification : enabling a sustainable transition to low carbon transportation systems . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115600

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

Chicago Manual of Style (16^th Edition):

Blynn, Kelly (Kelly Mavis). “Accelerating bus electrification : enabling a sustainable transition to low carbon transportation systems .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115600.

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

MLA Handbook (7^th Edition):

Blynn, Kelly (Kelly Mavis). “Accelerating bus electrification : enabling a sustainable transition to low carbon transportation systems .” 2018. Web. 17 Jun 2019.

Vancouver:

Blynn K(M. Accelerating bus electrification : enabling a sustainable transition to low carbon transportation systems . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115600.

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

Council of Science Editors:

Blynn K(M. Accelerating bus electrification : enabling a sustainable transition to low carbon transportation systems . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115600

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

28. Kitchaev, Daniil A. Development and validation of a computational approach to predicting the synthesis of inorganic materials .

Degree: Department of Materials Science and Engineering, 2018, MIT

URL: http://hdl.handle.net/1721.1/115604

► The concept of computational materials design envisions the identification of chemistries and structures with desirable properties through first-principles calculations, and the downselection of these candidates… (more)

▼ The concept of computational materials design envisions the identification of chemistries and structures with desirable properties through first-principles calculations, and the downselection of these candidates to those experimentally accessible using available synthesis methods. While first-principles property screening has become routine, the present lack of a robust method for the identification of synthetically accessible materials is an obstacle to true materials design. In this thesis, I develop a general approach for evaluating synthesizeability, and where possible, identifying synthesis routes towards the realization of target materials. This approach is based on a quasi- thermodynamic analysis of synthesis methods, relying on the assumption that phase selection is guided by transient thermodynamic stability under the conditions relevant to phase formation. By selecting the thermodynamic handles relevant to a growth procedure and evaluating the evolution of thermodynamic boundary conditions throughout the reaction, I identify potential metastable end-products as the set of ground state phases stabilized at various stages of the synthesis. To validate this approach, I derive the quasi-thermodynamic influence of adsorption-controlled finite- size stability and bulk off-stoichiometry on phase selection in the aqueous synthesis of polymorphic FeS2 and MnO2 systems, rationalizing the results of a range of synthesis experiments. To enable this analysis, I develop and benchmark the methodology necessary for the reliable first-principles evaluation of structure-sensitive bulk and interfacial stability in aqueous media. Finally, I describe a manganese oxide oxygen evolution catalyst, whose high activity is controlled by metastable, tetrahedrally- coordinated Mn3+ ions as an example of materials functionality enabled by structural metastability. The framework for the first-principles analysis of synthesis proposed and validated in this thesis lays the groundwork for the development of computational synthesis prediction and holds the potential to greatly accelerate the design and realization of new functional materials. Advisors/Committee Members: Gerbrand Ceder (advisor).

Subjects/Keywords: Materials Science and Engineering.

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APA (6^th Edition):

Kitchaev, D. A. (2018). Development and validation of a computational approach to predicting the synthesis of inorganic materials . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115604

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

Chicago Manual of Style (16^th Edition):

Kitchaev, Daniil A. “Development and validation of a computational approach to predicting the synthesis of inorganic materials .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115604.

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

MLA Handbook (7^th Edition):

Kitchaev, Daniil A. “Development and validation of a computational approach to predicting the synthesis of inorganic materials .” 2018. Web. 17 Jun 2019.

Vancouver:

Kitchaev DA. Development and validation of a computational approach to predicting the synthesis of inorganic materials . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115604.

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

Council of Science Editors:

Kitchaev DA. Development and validation of a computational approach to predicting the synthesis of inorganic materials . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115604

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

29. Swallow, Jessica G. Chemomechanics of non-stoichiometric oxide films for energy conversion .

Degree: Department of Materials Science and Engineering, 2018, MIT

URL: http://hdl.handle.net/1721.1/115606

► Electrochemical energy conversion and storage devices including solid oxide fuel cells (SOFCs) and lithium ion batteries (LIBs) are enabled by materials known as "non-stoichiometric oxides"… (more)

▼ Electrochemical energy conversion and storage devices including solid oxide fuel cells (SOFCs) and lithium ion batteries (LIBs) are enabled by materials known as "non-stoichiometric oxides" that contain large concentrations of point defects such as oxygen or lithium vacancies. While this non-stoichiometry provides the essential functional properties of ionic conductivity or reactivity that make these materials useful, it also tends to couple to material volume through the effect of chemical expansion. Chemical expansion, or volume coupled to defect concentration, is in turn tied to mechanical variables including stress, strain, and elastic constants. This electrochemomechanical coupling, or interaction between functional properties, defect chemistry, and mechanical variables, can have important consequences for devices operated in extreme environments, where unexpected stress may lead to fracture, or well-engineered strain may enhance device efficiency. Such effects are particularly important in thin film devices, where strain engineering is within reach, undesired fracture can devastate performance, and defect chemistry and related properties can differ from bulk systems. In this thesis, we present a concerted investigation of chemomechanical coupling, including interactions between material chemistry, environmental conditions, stress, strain, and mechanical properties, for films of the model material PrxCe1-xO2-[delta] (PCO) that is a fluorite-structured oxide relevant to SOFC applications. PCO is an excellent model system because of its well-established defect chemistry model and known thermal and chemical expansion coefficients. The thesis begins by first characterizing key chemomechanical effects in PCO, including electrochemically induced high temperature actuation and nonstoichiometry- dependent mechanical properties that are modulated by environmental conditions including temperature and oxygen partial pressure. We then explore the mechanisms and microstructural contributions to these effects via computational modeling and high temperature transmission electron microscopy, identifying ways in which chemomechanical effects in thin film non-stoichiometric oxides differ from those in bulk. Finally, we extend the experimental and computational methods developed in the thesis to characterizing similar effects in Li-storage materials, demonstrating the broad applicability of results across the classes of non-stoichiometric oxides. We first describe an experimental study in which we developed a novel method of detecting chemical expansion on short time scales in the model system PCO and characterized material deformation for a range of conditions of temperature and effective oxygen partial pressure (pO2). In this method, electrically-stimulated chemical expansion caused mechanical deflection of a substrate, an effect that for PCO was enhanced for elevated temperatures or reducing conditions ... Advisors/Committee Members: Krystyn J. Van Vliet (advisor).

Subjects/Keywords: Materials Science and Engineering.

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APA (6^th Edition):

Swallow, J. G. (2018). Chemomechanics of non-stoichiometric oxide films for energy conversion . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115606

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

Chicago Manual of Style (16^th Edition):

Swallow, Jessica G. “Chemomechanics of non-stoichiometric oxide films for energy conversion .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115606.

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

MLA Handbook (7^th Edition):

Swallow, Jessica G. “Chemomechanics of non-stoichiometric oxide films for energy conversion .” 2018. Web. 17 Jun 2019.

Vancouver:

Swallow JG. Chemomechanics of non-stoichiometric oxide films for energy conversion . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115606.

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

Council of Science Editors:

Swallow JG. Chemomechanics of non-stoichiometric oxide films for energy conversion . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115606

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

30. Nakanishi, Bradley Rex. On the electrolytic nature of molten aluminum and rare earth oxides .

Degree: Department of Materials Science and Engineering, 2018, MIT

URL: http://hdl.handle.net/1721.1/115607

► The electrolytic cell method and its application for Gibbs energy measurement in high temperature, concentrated ionic melts was investigated. Previous challenges related primarily to signal… (more)

Subjects/Keywords: Materials Science and Engineering.

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APA (6^th Edition):

Nakanishi, B. R. (2018). On the electrolytic nature of molten aluminum and rare earth oxides . (Thesis). MIT. Retrieved from http://hdl.handle.net/1721.1/115607

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

Chicago Manual of Style (16^th Edition):

Nakanishi, Bradley Rex. “On the electrolytic nature of molten aluminum and rare earth oxides .” 2018. Thesis, MIT. Accessed June 17, 2019. http://hdl.handle.net/1721.1/115607.

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

MLA Handbook (7^th Edition):

Nakanishi, Bradley Rex. “On the electrolytic nature of molten aluminum and rare earth oxides .” 2018. Web. 17 Jun 2019.

Vancouver:

Nakanishi BR. On the electrolytic nature of molten aluminum and rare earth oxides . [Internet] [Thesis]. MIT; 2018. [cited 2019 Jun 17]. Available from: http://hdl.handle.net/1721.1/115607.

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

Council of Science Editors:

Nakanishi BR. On the electrolytic nature of molten aluminum and rare earth oxides . [Thesis]. MIT; 2018. Available from: http://hdl.handle.net/1721.1/115607

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

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Open Access Theses and Dissertations