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353 results on '"Fu, Henry"'

103. Dynamics of linear and T-shaped Ar--I[sub 2] dissociation upon...

Author

Miller, Amy E. Stevens, Cheng-Chi Chuang, Fu, Henry C., Higgins, Kelly J., and Klemperer, William

Subjects
QUASIMOLECULES, NOBLE gases
Abstract

Investigates the binding, structure and dynamics of van der Waals complexes of rare gases with halogens. Continuum excitation spectrum of linear isomer; Similarity between the product vibrational state distribution and the observed excitation above the dissociation limit; Estimating a bond energy based on the linear to T-shaped population ration observed in the beam.

Published
1999
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109. A Fluorescence-Guided Laser Ablation System for Removal of Residual Cancer in a Mouse Model of Soft Tissue Sarcoma

Author

Lazarides, Alexander L., primary, Whitley, Melodi J., additional, Strasfeld, David B., additional, Cardona, Diana M., additional, Ferrer, Jorge M., additional, Mueller, Jenna L., additional, Fu, Henry L., additional, DeWitt, Suzanne Bartholf, additional, Brigman, Brian E., additional, Ramanujam, Nimmi, additional, Kirsch, David G., additional, and Eward, William C., additional

Published
2016
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110. A quantitative microscopic approach to predict local recurrence based onin vivointraoperative imaging of sarcoma tumor margins

Author

Mueller, Jenna L., primary, Fu, Henry L., additional, Mito, Jeffrey K., additional, Whitley, Melodi J., additional, Chitalia, Rhea, additional, Erkanli, Alaattin, additional, Dodd, Leslie, additional, Cardona, Diana M., additional, Geradts, Joseph, additional, Willett, Rebecca M., additional, Kirsch, David G., additional, and Ramanujam, Nimmi, additional

Published
2015
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116. Bacterial Rheotaxis

Author

Massachusetts Institute of Technology. Department of Civil and Environmental Engineering, Parsons Laboratory for Environmental Science and Engineering (Massachusetts Institute of Technology), Stocker, Roman, Marcos, Fu, Henry C., Powers, Thomas R., Massachusetts Institute of Technology. Department of Civil and Environmental Engineering, Parsons Laboratory for Environmental Science and Engineering (Massachusetts Institute of Technology), Stocker, Roman, Marcos, Fu, Henry C., and Powers, Thomas R.

Abstract

The motility of organisms is often directed in response to environmental stimuli. Rheotaxis is the directed movement resulting from fluid velocity gradients, long studied in fish, aquatic invertebrates, and spermatozoa. Using carefully controlled microfluidic flows, we show that rheotaxis also occurs in bacteria. Excellent quantitative agreement between experiments with Bacillus subtilis and a mathematical model reveals that bacterial rheotaxis is a purely physical phenomenon, in contrast to fish rheotaxis but in the same way as sperm rheotaxis. This previously unrecognized bacterial taxis results from a subtle interplay between velocity gradients and the helical shape of flagella, which together generate a torque that alters a bacterium's swimming direction. Because this torque is independent of the presence of a nearby surface, bacterial rheotaxis is not limited to the immediate neighborhood of liquid–solid interfaces, but also takes place in the bulk fluid. We predict that rheotaxis occurs in a wide range of bacterial habitats, from the natural environment to the human body, and can interfere with chemotaxis, suggesting that the fitness benefit conferred by bacterial motility may be sharply reduced in some hydrodynamic conditions., National Science Foundation (U.S.) (Grant CBET-0966000), National Science Foundation (U.S.) (Grant CBET-0967510), National Science Foundation (U.S.) (Grant CBET-1067798 ), National Science Foundation (U.S.) (Grant OCE-0744641-CAREER)

Published
2013

117. JWST cryo fine guidance closed loop test results

Author

Lystrup, Makenzie, MacEwen, Howard A., Fazio, Giovanni G., Batalha, Natalie, Siegler, Nicholas, Tong, Edward C., Vila, M. Begoña, Lambros, Scott D., Diaz, David M., Fu, Henry, Lee, Steven S., Meza, Luis, Phillips, Kevin J., Del Rosario, Ben, and Wu, J. Carl

Published
2018
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119. Separation of Microscale Chiral Objects by Shear Flow

Author

Massachusetts Institute of Technology. Department of Civil and Environmental Engineering, Massachusetts Institute of Technology. Department of Mechanical Engineering, Stocker, Roman, Marcos, Powers, Thomas R., Fu, Henry C., Massachusetts Institute of Technology. Department of Civil and Environmental Engineering, Massachusetts Institute of Technology. Department of Mechanical Engineering, Stocker, Roman, Marcos, Powers, Thomas R., and Fu, Henry C.

Abstract

We show that plane parabolic flow in a microfluidic channel causes nonmotile, helically shaped bacteria to drift perpendicular to the shear plane. Net drift results from the preferential alignment of helices with streamlines, with a direction that depends on the chirality of the helix and the sign of the shear rate. The drift is in good agreement with a model based on resistive force theory, and separation is efficient (>80%) and fast (<2 s). We estimate the effect of Brownian rotational diffusion on chiral separation and show how this method can be extended to separate chiral molecules.

Published
2010

127. SNP PrimerPicker

Author

Lau, Yip-Kuen, Lau, Ching-Fun, Fu, Henry Yiu-Hang, Xue, Hong, Lau, Yip-Kuen, Lau, Ching-Fun, Fu, Henry Yiu-Hang, and Xue, Hong

Published
2003

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