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Heqing Huang, Jun Y. Chung, Adam J. Nolte, Christopher M. Stafford
We present the application of surface wrinkling to measure the properties of polymer brush layers tethered to the surface of a deformable silicone substrate. It...
Michael O. Shneier, Tommy Chang, Tsai Hong Hong, William P. Shackleford
Autonomous mobile robots need to adapt their behavior to the terrain over which they drive, and to predict the traversability of the terrain so that they can...
Recent years have seen increased interest in text summarization with emphasis on evaluation of prototype ststems. Many factors can affect the design of such...
Mark W. Keller, Neil M. Zimmerman, Ali L. Eichenberger
We measure a cryogenic, vacuum-gap capacitor by two methods: 1) charging it with a known number of electrons and measuring the resulting voltage, and 2) using a...
August W. Bosse, Jack F. Douglas, Brian Berry, Ronald L. Jones, Alamgir Karim
Motivated by recent measurements of zone annealing in block copolymer films at low temperatures, we implement a spatiotemporal mobility gradient with intrinsic...
Sanjit Bhowmick, Juan J. Melendez-Martinez, Brian R. Lawn
It has long been held that bulk silicon is immune from fatigue. We present contrary evidence demonstrating severe fatigue in macroscale cracks produced in...
Andrea Rossi, Lili Wang, Vytas Reipa, Thomas E. Murphy
Nanoporous silicon was discovered in the 1950 s and has unique properties due to quantum confinement effects. It is produced by electrochemical etching in HF...
Shawn M. Tanner, Jason M. Gray, Charles T. Rogers, Kristine A. Bertness, Norman Sanford
We report high mechanical quality factors Q for GaN nanowire cantilevers grown by molecular beam epitaxy. Nanowires with 30-500 nm diameters and 5-20 υm lengths...
Pradeep N. Namboodiri, Doo-In Kim, Jaroslaw Grobelny, T Hawa, B Henz, Michael R. Zachariah
Fracture of nanoscale contacts formed between spherical probes and flat samples is studied using an atomic force microscope (AFM) in ultra high vacuum...
Jan Obrzut, Jack F. Douglas, S B. Kharchenko, Kalman D. Migler
The blending of carbon nanotubes (CNT) into polymer matrices leads to intrinsically non-equilibrium materials whose properties can depend strongly on flow...
Howard W. Yoon, Charles E. Gibson, V B. Khromchenko, George P. Eppeldauer, Robert R. Bousquet, Steven W. Brown, Keith R. Lykke
We describe the construction, the calibration and the use of the NIST Thermodynamic Radiation Thermometer (TRT) to measure the temperature of the gold-freezing...
Thermophysical properties were measured at ambient pressure for a high-purity sample of the ionic liquid 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl...
Extensive calculations of the electric-dipole matrix elements in alkali-metal atoms are conducted using the relativistic all-order method. This approach is a...
G L. Jones, F Dias, Brian Collett, W C. Chen, Thomas R. Gentile, P M. Piccoli, M E. Miller, A J. Schultz, H Yan, X Tong, W M. Snow, W T. Lee, C Hoffmann, J Thomison
We present a new and simple approach to broadband coherent anti-Stokes Raman scattering (CARS) microscopy that yields background-free vibrational spectra. We...
In this paper, a Dynamic Source Routing (DSR)-based directional routing protocol is invoked for wireless ad hoc networks using directional antennas. This is...
D M. Saylor, C Y. Kim, D Patwardhan, James A. Warren
A common method of controlling drug release has been to incorporate the drug into a polymer matrix, thereby creating a diffusion barrier and slowing the rate of...
Historically, contaminants in seabird tissues were monitored by considering physically visible effects; however, subtle, sub-lethal effects are also important...
Putidaredoxin reductase (PdR) is the flavin protein that carries out the first electron transfer involved in the cytochrome P450cam catalytic cycle. In PdR, the...
Siddarth Sundaresan, Albert Davydov, Mark D. Vaudin, Igor Levin, James E. Maslar, Yong-lai Tian, M V. Rao
SiC nanowires are grown by a novel catalyst-assisted sublimation-sandwich (SS) method. This involves microwave heating-assisted physical vapor transport from a...
Ram D. Sriram, A S. Deshmukh, A G. Banerjee, Satyandra K. Gupta
The increased use of CAD systems by product development organizations has resulted in the creation of large databases of assemblies. This explosion of assembly...
Guangjun Cheng, Cindi L. Dennis, Robert D. Shull, Angela R. Hight Walker
The magnetic properties of 10 nm cobalt (Co) nanoparticles in 1,2-dicholorbenenze (DCB) are investigated via a series of magnetization (M) vs. temperature (T)...
V Shah, Svenja A. Knappe, P Schwindt, John E. Kitching
Highly sensitive magnetometers, capable of measuring magnetic fields below 1 pT, impact areas as diverse as geophysical surveying1, the detection of unexploded...
Pedatsur Neta, Quan-Long Pu, Xiaoyu Yang, Stephen E. Stein
A two-step neutral loss from tryptic peptides containing Thr-Thr or Thr-Ser at their N-terminus is studied. This process also requires a mobile proton (i.e...
Atomic clocks and precision timing are at the core of almost every aspect of global navigation satellite systems (GNSS). A GNSS receiver determines its position...