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Articles 1 - 30 of 63
Full-Text Articles in Entire DC Network
40ar/39ar Ages Of Lunar Impact Glasses: Relationships Among Ar Diffusivity, Chemical Composition, Shape, And Size, John W. Delano Phd, Nicolle Zellner
40ar/39ar Ages Of Lunar Impact Glasses: Relationships Among Ar Diffusivity, Chemical Composition, Shape, And Size, John W. Delano Phd, Nicolle Zellner
Atmospheric and Environmental Science Faculty Scholarship
Lunar impact glasses, which are quenched melts produced during cratering events on the Moon, have the potential to providenot only compositional information about both the local and regional geology of the Moon but also information about the impact flux over time. We present in this paper the results of 73 new 40Ar/39Ar analyses of well-characterized, inclusion-free lunar impact glasses and demonstrate that size, shape, chemical composition, fraction of radiogenic 40Ar retained, and cosmic ray exposure (CRE) ages are important for 40Ar/39Ar investigations of these samples. Specifically, analyses of lunar impact glasses from the Apollo 14, 16, and 17 landing sites …
Paratodo X: Una Introducción A La Lógica Formal, P.D. Magnus
Paratodo X: Una Introducción A La Lógica Formal, P.D. Magnus
Philosophy Faculty Books
A translation of the logic textbook forall x (v 1.30) into Spanish. Translation by José Ángel Gascón.
Search For Life, John W. Delano Phd
Search For Life, John W. Delano Phd
Atmospheric and Environmental Science Faculty Scholarship
NASA's Astrobiology program seeks to determine the origin and distribution of life in the Milky Way galaxy using scientific expertise from many disciplines (e.g., astronomy, biochemistry, geochemistry). This presentation, which provides an overview of the progress that has been made in this effort, was delivered on 23 June 2015 at the Green Mountain Academy for Lifelong Learning in Manchester, VT. With NASA's development of the Space Launch System (SLS), vigorous multi-disciplinary scientific research, and additional spacecraft (e.g., TESS) for finding and analyzing planets orbiting other stars, exciting discoveries will continue.
Decay Estimates For The Wave Equation In Two Dimensions, Marius Beceanu
Decay Estimates For The Wave Equation In Two Dimensions, Marius Beceanu
Mathematics and Statistics Faculty Scholarship
We establish Strichartz estimates (both reversed and some direct ones), pointwise decay estimates, and weighted decay estimates for the linear wave equation in dimension two with an almost scaling-critical potential, in the case when there is no resonance or eigenvalue at the edge of the spectrum. We also prove some simple nonlinear applications.
Differentiation Of Human, Animal And Synthetic Hair By Atr Ftir Spectroscopy, Jeremy Manheim
Differentiation Of Human, Animal And Synthetic Hair By Atr Ftir Spectroscopy, Jeremy Manheim
Chemistry
Hair fibers are ubiquitous to every environment and are the most commonly found form of trace evidence at crime scenes. The primary difficulty forensic examiners face after retrieving a hair sample is determining who it came from. Currently, the methodology of microscopic examination of potential hair evidence is absent of statistical probability and is inherently subjective. Another method, involving DNA analysis, takes months to conduct and the majority of times is unsuccessful due to its degradation and absence from the hair. Here, Attenuated Total Reflectance (ATR) Fourier Transform Infrared (FTIR) Spectroscopy coupled with advanced statistics was used to identify a …
The Van Der Pol Oscillator As A Model Of The Hair Cell Auditory Response: A Numerical Study, Thomas Yocono
The Van Der Pol Oscillator As A Model Of The Hair Cell Auditory Response: A Numerical Study, Thomas Yocono
Physics
Hair cells, which detect and encode sound stimuli, have been shown to have a non-linear response and self sustaining oscillations. Here, we look at the Van der Pol oscillator, which has these properties, and numerically calculate its response to multiple driving frequencies. Any nonlinear system's response to multiple driving frequencies will have not just the driving frequencies present, but also combination tones, or heterodyne frequencies, which have order defined by the number of driving frequency combinations. This phenomenon has been experimentally confirmed in the human auditory response [1]. In the frequency specture of the Van der Pol steady state response …
Grasping The Fundamental Physics Of Xenon, Matthew M. Szydagis
Grasping The Fundamental Physics Of Xenon, Matthew M. Szydagis
Physics Faculty Scholarship
Direct searches for dark matter using noble liquids, especially liquid xenon in recent years, have obtained the best sensitivities in the field for moderate to high-mass dark-matter WIMPs. Along with the development of this technology, there has been a continued effort in the community to better understand the detailed scintillation and ionization responses of noble liquids in the presence of low-energy ionizing radiation. As this body of knowledge is reaching a mature state, a unified software framework for simulating scintillation and ionization production in these detectors is strongly needed. In this talk, I introduce NEST: Noble Element Simulation Technique, which …
A Xenon Bubble Chamber For Direct Dark Matter Detection, Matthew M. Szydagis
A Xenon Bubble Chamber For Direct Dark Matter Detection, Matthew M. Szydagis
Physics Faculty Scholarship
With the lack of discovery of WIMPs at high mass, and hints of signals at low masses, it is becoming increasingly important for direct dark matter detectors to set low thresholds. With a hypothetically completely tuneable threshold based on pressure and temperature, a bubble chamber could be the ideal detector to search for sub-GeV WIMPs and other light exotica. However, this technology has its own drawbacks, such as an unknown recoil energy on an event-by-event basis. By combining this technology with that of the xenon time-projection chamber, however, the strengths of both of these approaches are merged, leading to a …
Integrating Naturalized Areas Onto The University At Albany Campus, Cassidy Drasser, Bryan King, Aidan Mcgovern, Ahren Von Schnell
Integrating Naturalized Areas Onto The University At Albany Campus, Cassidy Drasser, Bryan King, Aidan Mcgovern, Ahren Von Schnell
Publications
The purpose of this management plan is to provide recommendations to create naturalized areas and increase biodiversity on the University at Albany campus. The University currently follows a number of environmental policies in an effort to promote uniformity. There are many benefits to increasing biodiversity on campus such as providing ecosystem services, increasing education and awareness, aiding in stormwater management, and support institutional advancement. There are already several areas on the campus that would serve as prime locations for projects of this nature including the front lawn and the Dutch and State parking lots. Future directions that the campus can …
Collective Impact: Results From A Multi-Campus Farm To College Pilot Program, Mary Ellen Mallia, Jamie Adams, Hannah Morgan, Lisa Mitten, Deborah Howard
Collective Impact: Results From A Multi-Campus Farm To College Pilot Program, Mary Ellen Mallia, Jamie Adams, Hannah Morgan, Lisa Mitten, Deborah Howard
Presentations
Presented at Association for the Advancement of Sustainability in Higher Education (AASHE) Conference and State of NY Sustainability Conference.
Scaling Up Local Food Sourcing: A Multi-Campus Farm To College Pilot (2015), Mary Ellen Mallia, Lisa Mitten, Hannah Morgan, Jamie Adams, Deborah Howard
Scaling Up Local Food Sourcing: A Multi-Campus Farm To College Pilot (2015), Mary Ellen Mallia, Lisa Mitten, Hannah Morgan, Jamie Adams, Deborah Howard
Presentations
Presented at the Northeast Campus Sustainability Consortium Conference.
Scaling Up Local Food Purchases, Mary Ellen Mallia, Lisa Mitten, Hannah Morgan, Jamie Adams, Deborah Howard
Scaling Up Local Food Purchases, Mary Ellen Mallia, Lisa Mitten, Hannah Morgan, Jamie Adams, Deborah Howard
Presentations
Presented at the State of NY Sustainability Conference.
Strain Relaxation In Nm-Thick Cu And Cu-Alloy Films Bonded To A Rigid Substrate, Ashley Herrmann
Strain Relaxation In Nm-Thick Cu And Cu-Alloy Films Bonded To A Rigid Substrate, Ashley Herrmann
Legacy Theses & Dissertations (2009 - 2024)
In the wide scope of modern technology, nm-thick metallic films are increasingly used as lubrication layers, optical coatings, plating seeds, diffusion barriers, adhesion layers, metal contacts, reaction catalyzers, etc. A prominent example is the use of nm-thick Cu films as electroplating seed layers in the manufacturing of integrated circuits (ICs). These high density circuits are linked by on-chip copper interconnects, which are manufactured by filling Cu into narrow trenches by electroplating. The Cu fill by electroplating requires a thin Cu seed deposited onto high-aspect-ratio trenches. In modern ICs, these trenches are approaching 10 nm or less in width, and the …
Initiated Chemical Vapor Deposition (Icvd) Polymer Thin Films : Structure-Property Effects On Thermal Degradation And Adhesion, Vijay Jain Bharamaiah Jeevendrakumar
Initiated Chemical Vapor Deposition (Icvd) Polymer Thin Films : Structure-Property Effects On Thermal Degradation And Adhesion, Vijay Jain Bharamaiah Jeevendrakumar
Legacy Theses & Dissertations (2009 - 2024)
Opportunities and challenges for chemical vapor deposition (CVD) of polymer thin films stems from their applications in electronics, sensors, and adhesives with demands for control over film composition, conformity and stability. Initiated chemical vapor deposition (iCVD) is a subset of the CVD technique that conjoins bulk free-radical polymerization chemistry with gas-phase processing. The novelty of iCVD technique stems from the use of an initiator that can be activated at low energies (150 – 300 °C) to react with surface adsorbed monomer to form a polymer film. This reduces risk for potential unwarranted side-reactions.
Luminescence Of Lanthanide Ions In Octahedral Coordinations With Comparison To The Centroid Shift And Host Lattice Exciton Energy, Sam J. Camardello
Luminescence Of Lanthanide Ions In Octahedral Coordinations With Comparison To The Centroid Shift And Host Lattice Exciton Energy, Sam J. Camardello
Legacy Theses & Dissertations (2009 - 2024)
In this dissertation, we have studied the luminescence of the lanthanide ions (Ce3+, Eu2+, Eu3+, Tb3+, and Pr3+), specifically in the highly symmetric octahedral coordination. This high symmetry coordination readily permits the optical properties of the luminescent ions to be determined spectroscopically. Relevant optical parameters such as the Stokes Shift (∆S), red shift (D(2+, 3+, A), crystal field splitting (Ɛcfs), and centroid sift (Ɛc), along with the excitation and emission spectra, are presented. Three different crystal structures were studied, namely, M2+Al2B2O7 (M2+ = Ca, Sr, Ba) doped with Eu2+ and Ce3+, KBaLn3+(BO3)2 (M3+ = all lanthanides, Y, Sc) doped with …
Using Storm-Watersheds And A Multi-Criteria Decision Model For Biodiversity Conservation In An Urban Environment, Christina M. Chiappetta
Using Storm-Watersheds And A Multi-Criteria Decision Model For Biodiversity Conservation In An Urban Environment, Christina M. Chiappetta
Legacy Theses & Dissertations (2009 - 2024)
Many planning and land use decisions in New York State are controlled at the local (town or municipal) level, not an optimal scale for planning and implementing resource conservation management. Watershed boundaries provide a more ecologically meaningful scale for conservation, because they capture a full range of natural ecosystem processes that span political boundaries. However, defining an urban watershed is complicated by stormwater infrastructure, so standard topographic watershed boundaries may be inadequate for urban resource conservation even when applied at the watershed scale. Storm-watersheds distort both municipal and watershed boundaries, because the flows are redirected in ways that are often …
Extraction Of Carrier Mobility And Interface Trap Density In Ingaas Metal Oxide Semiconductor Structures Using Gated Hall Method, Thenappan Chidambaram
Extraction Of Carrier Mobility And Interface Trap Density In Ingaas Metal Oxide Semiconductor Structures Using Gated Hall Method, Thenappan Chidambaram
Legacy Theses & Dissertations (2009 - 2024)
III-V semiconductors are potential candidates to replace Si as a channel material in next generation CMOS integrated circuits owing to their superior carrier mobilities. Low density of states (DOS) and typically high interface and border trap densities (Dit) in high mobility group III-V semiconductors provide difficulties in quantification of Dit near the conduction band edge. The trap response above the threshold voltage of a MOSFET can be very fast, and conventional Dit extraction methods, based on capacitance/conductance response (CV methods) of MOS capacitors at frequencies <1MHz, cannot distinguish conducting and trapped carriers. In addition, the CV methods have to deal with high dispersion in the accumulation region that makes it a difficult task to measure the true oxide capacitance, Cox value. Another implication of these properties of III-V interfaces is an ambiguity of determination of electron density in the MOSFET channel. Traditional evaluation of carrier density by integration of the C-V curve, gives incorrect values for Dit and mobility. Here we employ gated Hall method to quantify the Dit spectrum at the high-κ oxide/III-V semiconductor interface for buried and surface channel devices using Hall measurement and capacitance-voltage data. Determination of electron density directly from Hall measurements allows for obtaining true mobility values
Visual Saliency Estimation : A Pre-Attentive Cognitive And Context-Aware Approach, Amanda Shannon Danko
Visual Saliency Estimation : A Pre-Attentive Cognitive And Context-Aware Approach, Amanda Shannon Danko
Legacy Theses & Dissertations (2009 - 2024)
At each glance, biological vision systems organize a tremendous amount of input and
Evolution Of African Easterly Waves And Their Relationship To Tropical Cyclogenesis, Alan Brammer
Evolution Of African Easterly Waves And Their Relationship To Tropical Cyclogenesis, Alan Brammer
Legacy Theses & Dissertations (2009 - 2024)
The research in this thesis explores the relationship between African easterly waves (AEWs) and tropical cyclogenesis over the eastern Atlantic. This research utilises 33 years of reanalysis and satellite data to investigate the interaction between AEW troughs, the surrounding environment and the embedded vortex.
Optical Metrology For Directed Self-Assembly Patterning Using Mueller Matrix Spectroscopic Ellipsometry Based Scatterometry, Dhairya J. Dixit
Optical Metrology For Directed Self-Assembly Patterning Using Mueller Matrix Spectroscopic Ellipsometry Based Scatterometry, Dhairya J. Dixit
Legacy Theses & Dissertations (2009 - 2024)
The semiconductor industry continues to drive patterning solutions that enable devices with higher memory storage capacity, faster computing performance, lower cost per transistors, and higher transistor density. These developments in the field of semiconductor manufacturing along with the overall minimization of the size of transistors require cutting-edge metrology tools for characterization.
Evaluating Preferred Direction Tropical Cyclone Track Variability In An Operational Global Ensemble Prediction System, Travis Elless
Evaluating Preferred Direction Tropical Cyclone Track Variability In An Operational Global Ensemble Prediction System, Travis Elless
Legacy Theses & Dissertations (2009 - 2024)
Ensemble forecasts of Tropical Storm Debby and Hurricane Sandy (2012) highlight instances where variability in tropical cyclone (TC) position forecasts are stretched along a preferred direction. The goal of this thesis is to analyze this stretching of variability in a global ensemble prediction system, particularly the European Centre for Medium-Range Weather Forecasts (ECMWF), to determine how often and under what conditions does variability stretching occur, and ultimately what feature(s) are responsible for generating this variability.
Deciding Static Inclusion For Delta-Strong And Omega [Upside Down Triangle]-Strong Intruder Theories : Applications To Cryptographic Protocol Analysis, Kimberly Ann Gero
Deciding Static Inclusion For Delta-Strong And Omega [Upside Down Triangle]-Strong Intruder Theories : Applications To Cryptographic Protocol Analysis, Kimberly Ann Gero
Legacy Theses & Dissertations (2009 - 2024)
In this dissertation we will be studying problems relating to indistinguishability. This topic
A Study Of The Emergence Of Student Tacit Knowledge In Response To Environmental Images And Science Instruction, Rory J. Glass
A Study Of The Emergence Of Student Tacit Knowledge In Response To Environmental Images And Science Instruction, Rory J. Glass
Legacy Theses & Dissertations (2009 - 2024)
The purpose of this study was to identify the presence of students’ tacit understandings as they apply to environmental science content, and to discover how these understandings emerge and are viewed and interpreted by teachers. Towards that end over ten hours of classroom video was recorded and analyzed, from both large urban and smaller urban classrooms. Additionally, interviews were conducted with 15 students and two teachers to gain insight into their thinking on an array of topics related to the environment and environmental reasoning. It was hypothesized that students’ understandings and teachers’ interpretations of them may be influenced by their …
Swan Modules Of Elementary Abelian 2-Groups Over Quadratic Imaginary Fields, Maxine Guzman
Swan Modules Of Elementary Abelian 2-Groups Over Quadratic Imaginary Fields, Maxine Guzman
Legacy Theses & Dissertations (2009 - 2024)
We show that every quadratic imaginary extension of the field of rationals has a biquadratic extension without a normal integral basis.
Generators For K₁ Of A Category With Cofibrations, Emily Hepworth
Generators For K₁ Of A Category With Cofibrations, Emily Hepworth
Legacy Theses & Dissertations (2009 - 2024)
We describe generators for the first algebraic K-theory group of categories with cofibrations, generalizing previous results by Gillet-Grayson and Sherman in the case of exact categories.
Coherent Scattering Imaging Monte Carlo Simulation, Laila Hassan
Coherent Scattering Imaging Monte Carlo Simulation, Laila Hassan
Legacy Theses & Dissertations (2009 - 2024)
Conventional mammography has poor contrast between healthy and cancerous tissues due to the small difference in attenuation properties. Coherent scatter potentially provides more information because interference of coherently scattered radiation depends on the average intermolecular spacing, and can be used to characterize tissue types. However, typical coherent scatter analysis techniques are not compatible with rapid low dose screening techniques. Coherent scatter slot scan imaging is a novel imaging technique which provides new information with higher contrast. In this work a simulation of coherent scatter was performed for slot scan imaging to assess its performance and provide system optimization. In coherent …
Two-Dimensional Chalcogenides : Material Synthesis And Nano-Device Applications, Robin Bay Jacobs-Gedrim
Two-Dimensional Chalcogenides : Material Synthesis And Nano-Device Applications, Robin Bay Jacobs-Gedrim
Legacy Theses & Dissertations (2009 - 2024)
Low-dimensional nanostructures exhibit distinct properties from their bulk counterparts. Here the synthesis of novel low-dimensional nanostructures is demonstrated using both top down and bottom up processes and their properties are investigated. Two-dimensional (2D) binary sesquichalcogenides are introduced as a viable material platform for phase change random access memory, photodetection, and the investigation of topological insulator surface states. An exponential relationship is observed between layer thickness and energy consumption during switching of 2D phase change devices, ultra-high responsivity in 2D photoresistors, and surface-rich conduction in 2D topological insulator nanoplates. Additionally, methods for the assessment of chemical purity, stoichiometry, and dimensions of …
Phase Imaging Using X-Ray Optics, Bushra Kanwal
Phase Imaging Using X-Ray Optics, Bushra Kanwal
Legacy Theses & Dissertations (2009 - 2024)
Conventional x-ray imaging is a widely used imaging technique in medical diagnostics as well as material analysis. It utilizes only absorption-contrast imaging, which records intensity attenuation due to absorption. A major limitation of this technique for medical imaging is the poor contrast of weakly absorbing details in the soft tissue. Mammography and angiography are two examples where improved contrast is required. In the quest for better contrast in x-ray imaging, a number of different phase contrast imaging techniques have been explored. Phase contrast imaging offers an improvement over traditional absorption contrast because the x-ray wave field traversing an object experiences …
Black Hole Microstates In String Theory, Joseph Lewkowicz
Black Hole Microstates In String Theory, Joseph Lewkowicz
Legacy Theses & Dissertations (2009 - 2024)
String theory has resolved the information paradox associated with entropy of black holes by identifying microscopic states contributing to this entropy. This thesis reviews the origin of the paradox, and discusses the progress in resolving it, starting from the counting of states by Strominger and Vafa, and culminating in the current work on constructing fuzzball geometries. A particular emphasis is given to a promising technique for constructing new geometries known as spectral flow.
Mixed Ligand Approach To Design Heterometallic Single-Source Precursors For Low-Temperature Preparation Of Oxide Materials, Craig Matthew Lieberman
Mixed Ligand Approach To Design Heterometallic Single-Source Precursors For Low-Temperature Preparation Of Oxide Materials, Craig Matthew Lieberman
Legacy Theses & Dissertations (2009 - 2024)
There is a considerable interest in the use of metal oxides for development of novel high-technological materials such as gas sensors, multiferroics, and electrocatalysts. In particular, the design of complex oxides, which incorporate more than one type of metal atom, is focused on enriching chemical and physical properties of the target materials and allowing for increased functionality. In order to replace the harsh conditions associated with traditional synthetic routes that often require high temperatures and/or pressures, new soft chemistry methods for the preparation of mixed-metal oxide materials have been developed. One of the most promising directions is the emergence of …