نتایج جستجو برای: scale gram
تعداد نتایج: 648010 فیلتر نتایج به سال:
We report on a stable optical trap suitable for a macroscopic mirror, wherein the dynamics of the mirror are fully dominated by radiation pressure. The technique employs two frequency-offset laser fields to simultaneously create a stiff optical restoring force and a viscous optical damping force. We show how these forces may be used to optically trap a free mass without introducing thermal nois...
Thanh T-H. Nguyen, Conor M. Mow-Lowry, Bram J. J. Slagmolen, John Miller, Adam J. Mullavey, Stefan Goßler, Paul A. Altin, Daniel A. Shaddock, and David E. McClelland Centre for Gravitational Physics, The Australian National University, Science Rd 38a, 2601 Canberra, ACT, Australia School of Physics and Astronomy, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom LIGO L...
Web-scale data has been used in a diverse range of language research. Most of this research has used web counts for only short, fixed spans of context. We present a unified view of using web counts for lexical disambiguation. Unlike previous approaches, our supervised and unsupervised systems combine information from multiple and overlapping segments of context. On the tasks of preposition sele...
Size is a defining characteristic of nanoparticles; it influences their optical and electronic properties as well as their interactions with molecules and macromolecules. Producing nanoparticles with narrow size distributions remains one of the main challenges to their utilization. At this time, the number of practical approaches to optimize the size distribution of nanoparticles in many intere...
Synthesis of clean double-walled carbon nanotubes by a catalytic chemical vapour deposition (CCVD) method is reported; the catalyst is a Mg(1 - x)Co(x)O solid solution containing additions of Mo oxide; this MgO-based catalyst can be easily removed, leading to gram-scale amounts of clean carbon nanotubes, 77% of which are double-walled carbon nanotubes.
R. Strauss, ∗ J. Rothe, G. Angloher, A. Bento, A. Gütlein, D. Hauff, H. Kluck, M. Mancuso, L. Oberauer, F. Petricca, F. Pröbst, J. Schieck, S. Schönert, W. Seidel, † and L. Stodolsky Max-Planck-Institut für Physik, D-80805 München, Germany CIUC, Departamento de Fisica, Universidade de Coimbra, P3004 516 Coimbra, Portugal Institut für Hochenergiephysik der Österreichischen Akademie der Wissensch...
Search engines are increasingly relying on structured data to provide direct answers to certain types of queries. However, extracting such structured data from text is challenging, especially due to the scarcity of explicitly expressed knowledge. Even when relying on large document collections, pattern-based information extraction approaches typically expose only insufficient amounts of informa...
The thermal noise associated with mechanical dissipation is a ubiquitous limitation to the sensitivity of precision experiments ranging from frequency stabilization to gravitational wave interferometry. We report on the thermal noise limits to the performance of 1 gm mirror oscillators that are part of a cavity optomechanics experiment to observe quantum radiation pressure noise. Thermal noise ...
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