617 Works

Wide Field-of-view Microscopes and Endoscopes for Time-lapse Imaging and High-throughput Screening

Chao Han
Wide field-of-view (FOV) microscopy is of high importance to biological research and clinical diagnosis where a high-throughput screening of samples is needed. This thesis presents the development of several novel wide FOV imaging technologies and demonstrates their capabilities in longitudinal imaging of living organisms, on the scale of viral plaques to live cells and tissues. The ePetri Dish is a wide FOV on-chip bright-field microscope. Here we applied an ePetri platform for plaque analysis of...

The Phonon Thermodynamics of Iron and Cementite

Lisa Mary Mauger
The vibrational properties of materials are essential to understanding material stability and thermodynamics. In this thesis I outline vibrational thermodynamic models and the experimental tools that provide evidence on phonon behavior. The introductory section discusses the history of metallurgy and thermodynamic theory, with an emphasis on the role of iron and cementite, two important components of steels. The thermodynamic framework for understanding vibrational material behavior is provided alongside the growing body of experimental and computational...

TCCON data from Lamont (US), Release GGG2014.R1

P. O. Wennberg, D. Wunch, C. M. Roehl, J.-F. Blavier, G. C. Toon & N. T. Allen
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This data set contains observations from the TCCON station at Lamont, U.S.A..

TCCON data from Jet Propulsion Laboratory (US), 2011, Release GGG2014.R1

P. O. Wennberg, C. M. Roehl, J.-F. Blavier, D. Wunch & N. T. Allen
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This data set contains observations from the TCCON station at the Jet Propulsion Laboratory, Pasadena, U.S.A..

TCCON data from Indianapolis (US), Release GGG2014.R1

L. T. Iraci, J. R. Podolske, P. W. Hillyard, C. Roehl, P. O. Wennberg, J.-F. Blavier, J. Landeros, N. Allen, D. Wunch, J. Zavaleta, E. Quigley, G. B. Osterman, E. Barrow & J. Barney
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This data set contains observations from the TCCON station at Indianapolis, U.S.A..

TCCON data from Edwards (US), Release GGG2014.R1

L. T. Iraci, J. R. Podolske, P. W. Hillyard, C. Roehl, P. O. Wennberg, J.-F. Blavier, J. Landeros, N. Allen, D. Wunch, J. Zavaleta, E. Quigley, G. B. Osterman, R. Albertson, K. Dunwoody & H. Boyden
The Total Carbon Column Observing Network (TCCON) is a network of ground-based Fourier Transform Spectrometers that record direct solar absorption spectra of the atmosphere in the near-infrared. From these spectra, accurate and precise column-averaged abundances of atmospheric constituents including CO2, CH4, N2O, HF, CO, H2O, and HDO, are retrieved. This data set contains observations from the TCCON station at Edwards, U.S.A..

Using Earth Deformation Caused by Surface Mass Loading to Constrain the Elastic Structure of the Crust and Mantle

Hilary Rose Martens
Surface mass loads come in many different varieties, including the oceans, atmosphere, rivers, lakes, glaciers, ice caps, and snow fields. The loads migrate over Earth's surface on time scales that range from less than a day to many thousand years. The weights of the shifting loads exert normal forces on Earth's surface. Since the Earth is not perfectly rigid, the applied pressure deforms the shape of the solid Earth in a manner controlled by the...

Optimization and Control of Power Flow in Distribution Networks

Masoud Farivar
Climate change is arguably the most critical issue facing our generation and the next. As we move towards a sustainable future, the grid is rapidly evolving with the integration of more and more renewable energy resources and the emergence of electric vehicles. In particular, large scale adoption of residential and commercial solar photovoltaics (PV) plants is completely changing the traditional slowly-varying unidirectional power flow nature of distribution systems. High share of intermittent renewables pose several...

Programming Molecular Association and Viscoelastic Behavior in Protein Hydrogels

Lawrence Joseph Dooling
Recombinant artificial proteins contain genetically encoded information that specifies their assembly into higher order structures by physical or chemical cross-linking as well as elastic behavior and biological or chemical function. This thesis describes the use of artificial proteins to construct molecular networks containing covalent cross-links involving the thiol side chain of cysteine residues and physical cross-links involving the association of helical domains as coiled coils. The goal of this work was to demonstrate how the...

Design, construction, and applications of a high-resolution terahertz time-domain spectrometer

Daniel Brian Holland
This thesis reports on the design, construction, and initial applications of a high-resolution terahertz time-domain ASOPS spectrometer. The instrument employs asynchronous optical sampling (ASOPS) between two Ti:sapphire ultrafast lasers operating at a repetition rate of approximately 80 MHz, and we thus demonstrate a THz frequency resolution approaching the limit of that repetition rate. This is an order of magnitude improvement in resolution over typical THz time-domain spectrometers. The improved resolution is important for our primary...

Toward Understanding Astrophysical Phenomena

Jing Luan
Fast radio bursts (FRBs), a novel type of radio pulse, whose physics is not yet understood at all. Only a handful of FRBs had been detected when we started this project. Taking account of the scant observations, we put physical constraints on FRBs. We excluded proposals of a galactic origin for their extraordinarily high dispersion measures (DM), in particular stellar coronas and HII regions. Therefore our work supports an extragalactic origin for FRBs. We show...

A Chip Assembler

Computer Science Technical Reports

Synthetic regulation of eukaryotic gene expression by noncoding RNA

Leopold Daniel D'Espaux
Synthetic biological systems promise to combine the spectacular diversity of biological functionality with engineering principles to design new life to address many pressing needs. As these engineered systems advance in sophistication, there is ever-greater need for customizable, situation-specific expression of desired genes. However, existing gene control platforms are generally not modular, or do not display performance requirements required for robust phenotypic responses to input signals. This work expands the capabilities of eukaryotic gene control in...

Open Citations, BibTeX Format & Populating an ORCiD Profile: An AuthorCarpentry Lesson

Gail P. Clement
This lesson covers the retrieval of citation metadata in BibTeX format from various sources (including the CrossRef API and Google Scholar); concatening citations into a BiBTeX publications list; and importing that BibTeX publications list into the ORCiD profile to auto-populate the works section. This lesson was piloted at the First CODATA-RDA Research Data Science Summer School, 1-12 August, ICTP, Trieste.

Circuit Cavity Electromechanics in the Quantum Regime

Chan U Lei
Generating nonclassical states of a macroscopic mechanical object has been a subject of considerable interest. It offers a route toward fundamental test of quantum mechanics in an unexplored regime. However, a macroscopic quantum state is very susceptible to decoherence due to the environment. One way to generate robust quantum states is quantum reservoir engineering. In this work, we utilize the reservoir engineering scheme to generate a steady quantum squeezed state of a micron-scale mechanical oscillator...

Incremental Control Synthesis for Robotics in the Presence of Temporal Logic Specifications

Scott Carlton Livingston
This thesis presents methods for incrementally constructing controllers in the presence of uncertainty and nonlinear dynamics. The basic setting is motion planning subject to temporal logic specifications. Broadly, two categories of problems are treated. The first is reactive formal synthesis when so-called discrete abstractions are available. The fragment of linear-time temporal logic (LTL) known as GR(1) is used to express assumptions about an adversarial environment and requirements of the controller. Two problems of changes to...

Three Essays on Information Economics

Qiaoxi Zhang
The main theme of my thesis is how uncertainty affects behaviors. I explore how agents seek to resolve uncertainty in different environments. In Chapter 1, agents learn from the messages of informed experts in a signaling game. In Chapter 2, an agent learns about a fixed and uncertain physical environment through dynamic experimentation. In the last chapter, agents learn about others' preferences through the outcome of a central matching mechanism. Motivated by the question of...

Testing Inflationary Cosmology with the BICEP1 and BICEP2 Experiments

Randol Wallace Aikin
Recent observations of the temperature anisotropies of the cosmic microwave background (CMB) favor an inflationary paradigm in which the scale factor of the universe inflated by many orders of magnitude at some very early time. Such a scenario would produce the observed large-scale isotropy and homogeneity of the universe, as well as the scale-invariant perturbations responsible for the observed (10 parts per million) anisotropies in the CMB. An inflationary epoch is also theorized to produce...

The Needle in the hundred square degree Haystack: The Hunt for Binary Neutron Star Mergers with LIGO and Palomar Transient Factory

Leo Pound Singer
The Advanced LIGO and Virgo experiments are poised to detect gravitational waves (GWs) directly for the first time this decade. The ultimate prize will be joint observation of a compact binary merger in both gravitational and electromagnetic channels. However, GW sky locations that are uncertain by hundreds of square degrees will pose a challenge. I describe a real-time detection pipeline and a rapid Bayesian parameter estimation code that will make it possible to search promptly...

How Behavioral Economics Can Shape Firm Strategy and Public Policy: Lessons from the Field and Laboratory

Matthew C. Chao
Incentives are not always economic or monetary in nature. Individuals are often influenced by socially-based incentives centered on how he or she wants to be perceived in a social setting, such as the desire to publicly adhere to a norm of fairness. Likewise, individuals can also be influenced by cognitively-based incentives centered on self-perception and self-attribution, such as the desire to convince oneself that he or she is altruistic. Behavioral economists have incorporated some of...

Interaction of water waves with a density-stratified fluid in a rectangular trench

W. M. Keck Laboratory Of Hydraulics And Water Resources

Magnet positioning problems for a 300 GEV proton Synchrotron

Synchrotron Laboratory

Beam transfer in the cascade synchrotron

Synchrotron Laboratory

Essays in Economic History and Applied Microeconomics

Yifei Huang
This thesis consists of three papers studying institutions that assess human capital and performance. The first two chapters study the Chinese Civil Service Examination in 19th century Jiangnan. Chapter 1 investigates how much intergenerational mobility did the exam system actually induce. Results show that although nominally every male was allowed to participate, in any given generation, effective competition mostly took place among individuals with enough resources. Substantial advantages were enjoyed by families with established tradition...

Windowed Integral Equation Methods for Problems of Scattering by Defects and Obstacles in Layered Media

Carlos Andrés Pérez Arancibia
This thesis concerns development of efficient high-order boundary integral equation methods for the numerical solution of problems of acoustic and electromagnetic scattering in the presence of planar layered media in two and three spatial dimensions. The interest in such problems arises from application areas that benefit from accurate numerical modeling of the layered media scattering phenomena, such as electronics, near-field optics, plasmonics and photonics as well as communications, radar and remote sensing. A number of...

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