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RNA Folding and Hydrolysis Terms Explain ATP Independence of RNA Interference in Human Systems
(Mary Ann Liebert, Inc., 2009)
Although RNA interference (RNAi) has emerged as an important tool for studying the effects of gene knockdown, it is still difficult to predict the success of RNAi effectors in human systems. By examining the basic thermodynamic ...
Earthquake Ruptures with Thermal Weakening and the Operation of Major Faults at Low Overall Stress Levels
(American Geophysical Union, 2009)
We model ruptures on faults that weaken in response to flash heating of microscopic asperity contacts (within a rate-and-state framework) and thermal pressurization of pore fluid. These are arguably the primary weakening ...
Thermal Pressurization and Onset of Melting in Fault Zones
(American Geophysical Union, 2006)
We examine how frictional heating drives the evolution of temperature, strength, and fracture energy during earthquake slip. For small slip distances, heat and pore fluid are unable to escape the shearing fault core, and ...
Does Shear Heating of Pore Fluid Contribute to Earthquake Nucleation?
(American Geophysical Union, 2006)
Earthquake nucleation requires reduction of frictional strength \(\tau = \mu (\sigma - p) \) with slip or slip rate, where \(\mu, \sigma_n\), and \(p\) are the friction coefficient, normal stress, and fluid pressure, ...
Self-Adapting Modular Robotics: A Generalized Distributed Consensus Framework
(Institute of Electrical and Electronics Engineers (IEEE), 2009)
Biological systems achieve amazing adaptive behavior with local agents performing simple sensing and actions. Modular robots with similar properties can potentially achieve self-adaptation tasks robustly. Inspired by this ...
Ultra-high-Q TE/TM Dual-Polarized Photonic Crystal Nanocavities
(Optical Society of America, 2009)
We demonstrate photonic crystal nanobeam cavities that support both TE- and TM-polarized modes, each with a Quality factor greater than one million and a mode volume on the order of the cubic wavelength. We show that these ...
Point Defect Engineered Si Sub-Bandgap Light-Emitting Diode
(2007)
We extensively study the propagation features of higher-order modes in a photonic crystal fiber (PCF). Our analysis is based on a full-vector modal technique specially adapted to accurately describe light propagation in ...
A Multi-Site Analysis of Random Error in Tower-Based Measurements of Carbon and Energy Fluxes
(Elsevier, 2006)
Measured surface-atmosphere fluxes of energy (sensible heat, <i>H</i>, and latent heat, LE) and CO2 (<i>F</i>CO2) represent the "true" flux plus or minus potential random and systematic measurement errors. Here, we use data ...
A Public-Key Infrastructure for Key Distribution in TinyOS Based on Elliptic Curve Cryptography
(IEEE, 2004)
We present the first known implementation of elliptic curve cryptography over F2p for sensor networks based on the 8-bit, 7.3828-MHz MICA2 mote. Through instrumentation of UC Berkeley's TinySec module, we argue that, ...
Evolution of Nanoporosity in Dealloying
(Nature Publishing Group, 2001)
Dealloying is a common corrosion process during which an alloy is 'parted' by the selective dissolution of the most electrochemically active of its elements. This process results in the formation of a nanoporous sponge ...