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Browsing Duke Faculty Scholarship by Subject "system"

Now showing items 1-12 of 12

Analytic-domain lens design with proximate ray tracing

Hagen, Nathan; Brady, David; Zheng, Nan (OPTICAL SOC AMER, 2010)

We have developed an alternative approach to optical design which operates in the analytical domain so that an optical designer works directly with rays as analytical functions of system parameters rather than as discretely ...
Bound on quantum computation time: Quantum error correction in a critical environment

Baranger, Harold (AMER PHYSICAL SOC, 2010)

We obtain an upper bound on the time available for quantum computation for a given quantum computer and decohering environment with quantum error correction implemented. First, we derive an explicit quantum evolution ...
Dynamic Properties of Coupled Maps

Zheng, Huifeng (HINDAWI PUBLISHING CORPORATION, 2010)

Dynamic properties are investigated in the coupled system of three maps with symmetric nearest neighbor coupling and periodic boundary conditions. The dynamics of the system is controlled by certain coupling parameters. ...
Homeostatic Imbalance of Purine Catabolism in First-Episode Neuroleptic-Naive Patients with Schizophrenia

McEvoy, Joseph; Kaddurah-Daouk, Dr Rima (PUBLIC LIBRARY SCIENCE, 2010)

Background: Purine catabolism may be an unappreciated, but important component of the homeostatic response of mitochondria to oxidant stress. Accumulating evidence suggests a pivotal role of oxidative stress in schizophrenia ...
The Ocean-Land-Atmosphere-Model: Optimization and Evaluation of Simulated Radiative Fluxes and Precipitation

Medvigy, David; Walko, Robert L.; Otte, Martin J.; Avissar, Roni (AMER METEOROLOGICAL SOC, 2010)

This work continues the presentation and evaluation of the Ocean Land Atmosphere Model (OLAM), focusing on the model's ability to represent radiation and precipitation. OLAM is a new, state-of-the-art earth system model, ...
On the possibility of a shunt-stabilized superlattice terahertz emitter

Xu, Huidong; Teitsworth, Stephen (AMER INST PHYSICS, 2010)

High field electronic transport through a strongly coupled superlattice (SL) with a shunting side layer is numerically studied using a drift-diffusion model that includes both vertical and lateral dynamics. The bias voltage ...
Sensitive Detection of H2S Using Gold Nanoparticle Decorated Single-Walled Carbon Nanotubes

Deshusses, Marc (AMER CHEMICAL SOC, 2010)

Herein, we demonstrate that highly sensitive conductometric gas nanosensors for H2S can be synthesized by electrodepositing gold nanoparticles on single-walled carbon nanotube (SWNT) networks. Adjusting the electrodeposition ...
Size and shape determination of spheroidal scatterers using two-dimensional angle resolved scattering

Giacomelli, Michael (OPTICAL SOC AMER, 2010)

We demonstrate accurate determination of the size and shape of spherical and spheroidal scatterers through inverse analysis of two-dimensional solid-angle and depth resolved backscattered light intensities. Intensity of ...
STAR 3 Randomized Controlled Trial to Compare Sensor-Augmented Insulin Pump Therapy with Multiple Daily Injections in the Treatment of Type 1 Diabetes: Research Design, Methods, and Baseline Characteristics of Enrolled Subjects

Schulman, Kevin (MARY ANN LIEBERT INC, 2010)

Background: Sensor-augmented pump therapy (SAPT) integrates real-time continuous glucose monitoring (RT-CGM) with continuous subcutaneous insulin infusion (CSII) and offers an alternative to multiple daily injections (MDI). ...
Surface-electrode point Paul trap

Kim, Taehyun; Kim, Jungsang (AMER PHYSICAL SOC, 2010)

We present a model as well as experimental results for a surface electrode radiofrequency Paul trap that has a circular electrode geometry well suited for trapping single ions and two-dimensional planar ion crystals. The ...
Tunable Leuko-polymersomes That Adhere Specifically to Inflammatory Markers

Rawson, Jeff; Therien, Michael (AMER CHEMICAL SOC, 2010)

The polymersome, a fully synthetic cell mimetic, is a tunable platform for drug delivery vehicles to detect and treat disease (theranostics). Here, we design a leuko-polymersome, a polymersome with the adhesive properties ...
VCP/p97 is essential for maturation of ubiquitin-containing autophagosomes and this function is impaired by mutations that cause IBMPFD

Yao, Tso-Pang (LANDES BIOSCIENCE, 2010)

VCP (VCP/p97) is a ubiquitously expressed member of the AAA(+)-ATPase family of chaperone-like proteins that regulates numerous cellular processes including chromatin decondensation, homotypic membrane fusion and ...