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Displaying 326 - 350 of 1600

Laser-Focused Nanofabrication: Beating of Two Atomic Resonances

June 10, 2002
Author(s)
E Jurdik, K van, J Hohlfeld, T Rasing, Jabez J. McClelland
… atomic resonance at either of the two 52 Cr transitions 7 S 3 rarr} 7 P° 3 at 427.600 nm or 7 S 3 rarr} 7 P° 4 at 425.553 nm. In … The resulting beating pattern exhibits a period of 44.46 plus or minus}0.04 υm as determined with a polarizing …

SOLID-SUPPORTED ENZYME CATALYST MODELS FOR RING-OPENING POLYMERIZATION

April 27, 2012
Author(s)
Sara V. Orski, Santanu S. Kundu, Kathryn L. Beers, Richard A. Gross
The enzyme Candida antarctica Lipase B (CAL B), immobilized on a crosslinked poly(methyl methacrylate) (PMMA) support, catalyzes the ring-opening polymerization of ε-caprolactone to make biodegradable polyesters. Weak hydrophobic interactions of CAL B

Miniature Fourier Transform Instrument for Radiation Thermometry

October 16, 2008
Author(s)
F J. Dunmore, Leonard Hanssen
A miniature Fouier transform (FT0 spectrometer was evaluated as a device for remotely measuring the temperature of a high stability/emissivity blackbody. The device, commercially manufactured by Photonex LTD.,* is based on the novel design of a polarizing

A Low Cost Digital Vibration Meter

April 1, 2007
Author(s)
William V. Payne, Jon Geist
… sensor is the cantilever beam which is on the order of 500 m in length. Vibration of the MEMS device in the plane …

Towards Timely Intelligence in the Power Grid

February 25, 2013
Author(s)
YaShian Li-Baboud, Julien M. Amelot, Dhananjay Anand, Gerard N. Stenbakken, Thomas L. Nelson, James Moyne
One of the key lessons learned from the 2003 Northeast Blackout in the United States was the need for improved timing. The problem began as an isolated issue, but cascaded through the Northeastern grid. Timely situational awareness would likely have

Polyoxocationic Antimony Oxide Cluster with Acidic Protons

June 17, 2022
Author(s)
Yuki Watanabe, Kim Hyeon-Deuk, Takafumi Yamamoto, Masayoshi Yabuuchi, Olesia M. Karakulina, Yasuto Noda, Takuya Kurihara, I-Ya Chang, Masanobu Higashi, Osamu Tomita, Cedric Tassel, Daichi Kato, Jingxin Xia, Tatsuhiko Goto, Craig Brown, Yuto Shimoyama, Naoki Ogiwara, Joke Hadermann, Artem M. Abakumov, Sayaka Uchida, Ryu Abe, Hiroshi Kageyama
… form a face-centered cubic structure with cationic Sb 32 O 44 clusters and two types of smaller anionic clusters in …

Quantum phase modulation with acoustic cavities and quantum dots

April 29, 2022
Author(s)
Poolad Imany, Zixuan Wang, Ryan DeCrescent, Robert Boutelle, Corey McDonald, Travis Autry, Samuel Berweger, Pavel Kabos, Sae Woo Nam, Richard Mirin, Kevin L. Silverman
… of single photons with a half-wave voltage as low as 44 mV, and subnatural modulation sideband linewidths. These …

Charge state dependent energy deposition by ion impacts

August 5, 2011
Author(s)
Russell E. Lake, Joshua M. Pomeroy, Holger Grube, C E. Sosolik
… of craters in thin dielectric films formed by XeQ+ (26 Q 44) projectiles. Tunnel junction devices with ion-irradiated … of a crater c(Q) increased by four orders of magnitude (7:9 10􀀀4 S to 6.1 S) as Q increased, corresponding to crater …

CAVITY OPTOMECHANICAL SENSORS

June 5, 2011
Author(s)
Houxun H. Miao, Kartik A. Srinivasan, Matthew T. Rakher, Marcelo I. Davanco, Vladimir A. Aksyuk
We report a novel type of fully integrated optomechanical sensor and demonstrate high sensitivity mechanical displacement measurements on chip. We sense the motion of micro and nano-mechanical devices by near field coupling them to high quality factor

Direct In-Situ Mass Specific Absorption Spectra of Biomass Burning Particles Generated from Smoldering Hard and Softwoods

April 28, 2017
Author(s)
Rian You, James Radney, Christopher D. Zangmeister, Michael R. Zachariah
… were measured in-situ. Absorption data spanning from λ = 500 nm to 840 nm were collected using a photoacoustic … x 10-2 m2 g-1 spanning from 83 femtograms (fg) to 517 fg (500 nm ≤ mobility diameter ≤ 950 nm), MAC values in … had median MAC values ranging from 1.4 x 10-2 m2 g-1 to 7.9 x 10-2 m2 g-1 at λ = 550 nm with absorption Ångström …
Displaying 326 - 350 of 1600
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