Browsing Doctoral Theses by Title
Now showing items 8903-8922 of 22097
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H2, fixed architecture, control design for large scale systems
(Massachusetts Institute of Technology, 1990) -
H2A.Z : a molecular rheostat for gene regulation in embryonic stem cells
(Massachusetts Institute of Technology, 2015)Chromatin regulation is a key mechanism for controlling gene expression patterns during development and differentiation. The histone H2A variant H2A.Z is highly conserved among eukaryotes and is of particular interest ... -
Hadron production from e⁺e⁻ collisions around the Z⁰ mass
(Massachusetts Institute of Technology, 1990) -
Haha and aha! : creativity, idea generation, improvisational humor, and product design
(Massachusetts Institute of Technology, 2010)It is widely recognized that innovation and creativity is the new competitive battleground for product development firms. Engineers and product designers are now expected to be highly creative, prolific idea generators in ... -
A hair bundle proteomics approach to discovering actin regulatory proteins in inner ear stereocilia
(Massachusetts Institute of Technology, 2009)Because there is little knowledge in the areas of stereocilia development, maintenance, and function in the hearing system, I decided to pursue a proteomics-based approach to discover proteins that play a role in stereocilia ... -
Hairy interfaces
(Massachusetts Institute of Technology, 2018)Textured surfaces are known to play an important role in water-repellency and uptake for a number of creatures. While the influence of chemistry and surface roughness on the wettability of surfaces has been studied ... -
Half a job : how U.S. firms use part-time employment
(Massachusetts Institute of Technology, 1989) -
Halogen-elimination photochemistry and oxygen-activation chemistry of late transition-metal complexes
(Massachusetts Institute of Technology, 2012)Multi-electron reaction chemistry, from both ground- and excited-state species, is at the heart of many topics in renewable energy and catalysis. In this thesis, two classes of reactions central to the themes of energy ... -
Halogenated 1'-methyl-1,2'-bipyrroles (MBPs) in the Norwestern Atlantic
(Massachusetts Institute of Technology, 2009)Halogenated 1'-methyl-1,2'-bipyrroles (MBPs) are a distinctive class of marine organic compounds. They are naturally produced, they have a unique carbon structure, they are highly halogenated, and they bioaccumulate in ... -
Hamiltonian engineering for quantum sensing and quantum simulation
(Massachusetts Institute of Technology, 2021)Quantum sensing and quantum simulation are emerging areas in quantum science and technology with broad applications. In this thesis, we explore Hamiltonian engineering techniques to build better quantum sensors and quantum ... -
The Hampering Active Wellbore Kit (HAWK) for rapidly controlling a free flowing oil well
(Massachusetts Institute of Technology, 2014)To mitigate the impact of a Blowout Preventer (BOP) failure, this work proposes a method and machine that can create a gradual flow reduction to zero in an offshore well by introducing a mechanical plug inside the BOP. The ... -
Handheld MRI for Point-of-Care and Educational Applications
(Massachusetts Institute of Technology, 2023-09)Magnetic Resonance Imaging (MRI) is a powerful, non-invasive imaging modality for visualizing the body’s internal anatomy and providing contrast between soft tissues. However, the reach of clinical MRI scanners is limited ... -
Haploid reporter screens aimed at identification of NF-kappaB regulators
(Massachusetts Institute of Technology, 2014)Nuclear factor-kappaB (NF-KB) is a family of transcription factors that are essential for execution of both the innate and the adaptive immune response. NF-KB regulates hundreds of genes involved in critical processes such ... -
Happiness at Work: Essays on subjective wellbeing in the workplace and labor market
(Massachusetts Institute of Technology, 2022-05)This dissertation consists of three essays studying the extent to which subjective wellbeing shapes behaviors and outcomes in the workplace and labor market. The first essay studies an information-provision field experiment ... -
Haptic holography : an early computational plastic
(Massachusetts Institute of Technology, 2001)This dissertation introduces haptic holography, a combination of computational modeling and multimodal spatial display, as an early computationalplastic In this work, we combine various holographic displays with a force ... -
Hard and tough electrodeposited aluminum-manganese alloys with tailored nanostructures
(Massachusetts Institute of Technology, 2010)Tailoring the nanostructure of electrodeposited Al-Mn films to achieve high hardness and toughness is the overarching goal of this thesis. Binary Al-Mn alloys are electrodeposited using a conventional current waveform in ... -
Hardware and protocols for authentication and secure computation
(Massachusetts Institute of Technology, 2018)The Internet of Things has resulted in an exponential rise in the number of embedded electronic devices. This thesis deals with ensuring the security of these embedded devices. In particular we focus our attention on two ... -
A hardware and software architecture for efficient datacenters
(Massachusetts Institute of Technology, 2017)Datacenters host an increasing amount of the world's compute, powering a diverse set of applications that range from scientific computing and business analytics to massive online services such as social media and online ... -
A hardware and software architecture for pervasive parallelism
(Massachusetts Institute of Technology, 2020)Parallelism is critical to achieve high performance in modern computer systems. Unfortunately, most programs scale poorly beyond a few cores, and those that scale well often require heroic implementation efforts. This is ... -
Hardware mechanisms for efficient interprocessor communication
(Massachusetts Institute of Technology, 1996)