A5073904175- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Diamond and Carbon-based Materials Research
- Fluid Dynamics and Turbulent Flows
- Nuclear reactor physics and engineering
- Metal and Thin Film Mechanics
- Nuclear physics research studies
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Semiconductor materials and devices
- Electron and X-Ray Spectroscopy Techniques
- Advancements in Battery Materials
- Anodic Oxide Films and Nanostructures
- Aerodynamics and Acoustics in Jet Flows
- Advanced Sensor Technologies Research
- Gas Dynamics and Kinetic Theory
- Combustion and flame dynamics
- Computational Fluid Dynamics and Aerodynamics
- Force Microscopy Techniques and Applications
- Ionosphere and magnetosphere dynamics
- Atomic and Molecular Physics
- Aerodynamics and Fluid Dynamics Research
- Classical Philosophy and Thought
University of Southern California
2022
Purdue University West Lafayette
2010-2021
Los Alamos National Laboratory
2010-2019
Dow Chemical (United States)
2016
Sandia National Laboratories California
1999-2015
Sandia National Laboratories
1999-2014
Abilene Christian University
2003-2014
Banaras Hindu University
1998-2014
PHENIX laboratory
2003-2014
China Institute of Atomic Energy
1998-2014
Chronicling the strengths used in making difficult decisions learning from firefighters recognition-primed decision model power of intuition mental simulation Vincennes shootdown and to spot leverage points nonlinear aspects problem solving see invisible stories metaphors analogues read minds team mind rational analysis hyperrationality why good people make poor conclusions.
We report the creation of a nanoscale electrochemical device inside transmission electron microscope--consisting single tin dioxide (SnO(2)) nanowire anode, an ionic liquid electrolyte, and bulk lithium cobalt (LiCoO(2)) cathode--and in situ observation lithiation SnO(2) during charging. Upon charging, reaction front propagated progressively along nanowire, causing to swell, elongate, spiral. The is "Medusa zone" containing high density mobile dislocations, which are continuously nucleated...
Using advanced in situ transmission electron microscopy, we show that the addition of a carbon coating combined with heavy doping leads to record-high charging rates silicon nanowires. The and phosphorus each resulted 2 3 orders magnitude increase electrical conductivity nanowires that, turn, 1 order rate. In addition, electrochemical solid-state amorphization (ESA) inverse ESA were directly observed characterized during two-step phase transformation process lithiation: crystalline (Si)...
The stability of vortex rings is investigated both theoretically and experimentally. theoretical analysis considers the vortex-filament ring small but finite core size in an inviscid fluid to sinusoidal displacements its centreline. effect vorticity distribution within on self-induced motion each element filament calculated basis results presented previously by Widnall, Bliss & Zalay (1970). show that a ideal almost always unstable. number waves around perimeter unstable mode depends...
Highly $s{p}^{3}$-bonded, nearly hydrogen-free carbon-based materials can exhibit extremely low friction and wear in the absence of any liquid lubricant, but this physical behavior is limited by vapor environment. The effect water on examined as a function applied normal force for two such thin film form: one that fully amorphous structure (tetrahedral carbon, or ta-C) polycrystalline with $<10$ nm grains [ultrananocrystalline diamond (UNCD)]. Tribologically induced changes chemistry carbon...
We have developed a process for making thick, stress-free, amorphous-tetrahedrally bonded carbon (a-tC) films with hardness and stiffness near that of diamond. Using pulsed-laser deposition, thin a-tC (0.1–0.2 μm) were deposited at room temperature. The intrinsic stress in these (6–8 GPa) was relieved by short (2 min) anneal 600 °C. Raman electron energy-loss spectra from single-layer annealed specimens show only subtle changes as-grown films. Subsequent deposition annealing steps used to...
ChemBank ( http://chembank.broad.harvard.edu/ ) is a public, web-based informatics environment developed through collaboration between the Chemical Biology Program and Platform at Broad Institute of Harvard MIT. This knowledge includes freely available data derived from small molecules small-molecule screens resources for studying these data. unique among databases in its dedication to storage raw screening data, rigorous definition experiments terms statistical hypothesis testing,...
Transverse mass spectra of pions, kaons, and protons from the symmetric heavy-ion collisions 200 $A$ GeV $\mathrm{S}+\mathrm{S}$ 158 $\mathrm{Pb}+\mathrm{Pb}$, measured in NA44 focusing spectrometer at CERN, are presented. The dependence slope parameters provides evidence collective transverse flow expansion system induced central collisions.
Secondary ion mass spectrometry (SIMS) has been used in conjunction with isotopic labeling to determine the extent and rate of passive film hydration on aluminum. The rates at which oxygen- hydrogen-containing species migrate through have determined as a function temperature applied potential (cathodic anodic polarization). results suggest that defects such hydroxide ions are prevalent mobile oxide film, influencing kinetics mechanisms corrosion pitting processes.
Turbulence measurements in dispersed-bubble two-phase pipe flow, using laser velocimetry techniques, are presented. The turbulence-intensity show a strong dependence on the quality of flow. A theoretical basis for prediction turbulence levels flows is proposed. approach applied to dispersed-gas/liquid (bubbly) and solid/gas (particulate) flows, which experimental data available, with excellent results.
An application of intensity interferometry to relativistic heavy ion collisions is reported. The correlation between two like-charged pions used study the reactions $\mathrm{A}\mathrm{r}+\mathrm{K}\mathrm{C}\mathrm{l}\ensuremath{\rightarrow}{2\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}+X$ and $\mathrm{N}\mathrm{e}+\mathrm{N}\mathrm{a}\mathrm{F}\ensuremath{\rightarrow}{2\ensuremath{\pi}}^{\ensuremath{-}}+X$, both at an incident beam energy $1.8A$ GeV. Source sizes lifetimes are measured...
The advanced battery system is critically important for a wide range of applications, from portable electronics to electric vehicles. Lithium ion batteries (LIBs) are presently the best performing ones, but they cannot meet requirements more demanding applications due limitations in capacity, charging rate, and cyclability. One leading cause those lithiation-induced strain (LIS) electrodes that can result high stress, fracture, capacity loss. Here we report that, by utilizing coating...
The results of a systematic study 0\ifmmode^\circ\else\textdegree\fi{} pion production by heavy ions from 125 to 400 MeV/nucleon are presented. dependence the cross section on mass number target, energy beam, and charge discussed. A striking feature data is an unexpectedly large $\frac{{\ensuremath{\pi}}^{\ensuremath{-}}}{{\ensuremath{\pi}}^{+}}$ ratio for pions valocity close projectile velocity.
In proof‐of‐payment transit systems, passengers are legally required to purchase tickets before entering but not physically forced do so. Instead, patrol units move about the system, inspecting of passengers, who face fines if caught fare evading. The deterrence evasion depends on unpredictability and effectiveness patrols. this article, we present TRUSTS, an application for scheduling randomized patrols inspection in systems. TRUSTS models problem computing strategies as a leader‐follower...
The elastic and failure mechanical properties of hydrogen-free tetrahedral amorphous carbon (ta-C) MEMS structures were investigated via in situ direct local displacement measurements by a method that integrates atomic force microscopy (AFM) with digital image correlation (DIC). On-chip MEMS-scale specimens tested custom-designed apparatus was integrated an AFM to conduct uniaxial tension tests. Specimens 10 µm 50 wide 1.5 average thickness used measure the while 340 central elliptical...
Preface Abbreviations 1. Propertius' life and literary fortunes 2. The politics of elegy 3. Cynthis Prima Fuit 4. Roman Callimachus Epilogue Bibliography Indices.
We perform a quantitative investigation of the energetics thermally induced sp3→sp2 conversion carbon-carbon bonds in tetrahedral amorphous carbon (ta-C) films by using near-edge x-ray absorption fine structure (NEXAFS) and Raman spectroscopy. investigate evolution bonding configuration ta-C thin subjected to high temperature annealing flowing Argon gas rapid thermal furnace over range 200–1000 °C. observe no substantial change below 600 Changes NEXAFS spectra start appear above °C, 1000 °C...
filter resulting when the gyro drifts, accelerometer errors, and DME biases are neglected performs nearly optimally. Hence, alignment can be accomplished by using an eighth-order one VOR/DME, or a seventh-order two DME's. The quantitative results presented here are, of course, dependent upon validity error models assumed. In particular, VOR/DME model proposed has not been as thoroughly checked experimentally inertial navigation system model.
10 The Hedonism in Plato's Protagoras1 J. P. SULLIVAN I HREE INTERPRETATIONS of the discussion hedonism Prota- goras may be distinguished. Some have argued that represents real views historical Socrates 2 or Plato himself at time he was writing dialogue. 3 This is view which present seems to most generally accepted. 4 Others believe ad hominem, dialogue simply using premiss only good pleasure prove his main thesis Virtue Knowledge, while
Conversion-type electrodes represent a broad class of materials with new Li(+) reactivity concept. Of these materials, RuO2 can be considered model material due to its metallic-like conductivity and high theoretical capacity 806 mAh/g. In this paper, we use in situ transmission electron microscopy study the reaction between single-crystal nanowires Li(+). We show that large volume expansion 95% occurs after lithiation, 26% which is irreversible delithiation. Significant surface roughening...