The Experts below are selected from a list of 52986 Experts worldwide ranked by ideXlab platform
Joan Ramon Morante - One of the best experts on this subject based on the ideXlab platform.
-
Catalyst Size Limitation in vapor–liquid–solid ZnO nanowire growth using pulsed laser deposition
Thin Solid Films, 2012Co-Authors: Adela Marcu, C. Grigoriu, Reza R. Zamani, Lucian Trupina, Jordi Arbiol, Joan Ramon MoranteAbstract:Abstract Using a pulsed laser deposition system in a plane reflector configuration, we have grown single crystal ZnO nanowires using different gold catalyst quantities and different local particle fluxes. The number of ZnO nanowire over the square micrometer substrate surface proved to depend on both gold quantity and particle flux, in specific conditions. If for a “low particle flux” the nanowire density seems to strongly depend on the gold quantity, for a “high particle flux”, the dependence is no longer observable. The results were interpreted in terms of the catalyst absorbed particle concentration dependence on the catalyst droplet Size and incident particle flux.
-
catalyst Size Limitation in vapor liquid solid zno nanowire growth using pulsed laser deposition
Thin Solid Films, 2012Co-Authors: Adela Marcu, C. Grigoriu, Reza R. Zamani, Lucian Trupina, Jordi Arbiol, Joan Ramon MoranteAbstract:Abstract Using a pulsed laser deposition system in a plane reflector configuration, we have grown single crystal ZnO nanowires using different gold catalyst quantities and different local particle fluxes. The number of ZnO nanowire over the square micrometer substrate surface proved to depend on both gold quantity and particle flux, in specific conditions. If for a “low particle flux” the nanowire density seems to strongly depend on the gold quantity, for a “high particle flux”, the dependence is no longer observable. The results were interpreted in terms of the catalyst absorbed particle concentration dependence on the catalyst droplet Size and incident particle flux.
Roberto Bolli - One of the best experts on this subject based on the ideXlab platform.
-
development of an nih consortium for preclinical assessment of cardioprotective therapies caesar a paradigm shift in studies of infarct Size Limitation
Journal of Cardiovascular Pharmacology and Therapeutics, 2011Co-Authors: David J Lefer, Roberto BolliAbstract:An estimated 935 000 Americans suffer a myocardial infarction every year; because their prognosis is determined by the Size of the infarct, reducing infarct Size is of paramount importance to alleviate morbidity and mortality. For 40 years, the National Heart, Lung, and Blood Institute (NHLBI) has invested enormous resources (at least several hundred million dollars) in preclinical studies aimed at developing infarct-sparing therapies, and several hundred (if not thousands) therapies have been claimed to limit infarct Size in preclinical models. Unfortunately, due largely to methodological problems, this enormous investment has not produced any notable clinical application, and no cardioprotective therapy is currently available for clinical use.Clearly, after 40 years of futile efforts, a new approach is needed to overcome the problems that have impeded the translation of cardioprotective therapies. The time has come to apply to preclinical research on cardioprotection, the same standards of scientific ri...
Mamoru Hashimoto - One of the best experts on this subject based on the ideXlab platform.
-
Super-resolution discrete Fourier transform spectroscopy beyond time-window Size Limitation using precisely periodic pulsed radiation
Optica, 2015Co-Authors: Takeshi Yasui, Yuki Iyonaga, Yi-da Hsieh, Yoshiyuki Sakaguchi, Francis Hindle, Shuko Yokoyama, Tsutomu Araki, Mamoru HashimotoAbstract:Fourier transform spectroscopy (FTS) has been widely used in a variety of fields due to its high signal-to-noise ratio, simultaneous acquisition of a broad spectrum, and versatility for different radiation sources. Further improvement of the spectroscopic performance will widen its scope of applications. Here, we demonstrate improved spectral resolution by overcoming the time-window Size Limitation using a mode-locked terahertz (THz) pulse train as precisely periodic pulsed radiation in discrete Fourier transform spectroscopy (dFTS). Since infinitesimal resolution can be achieved at harmonic components of its repetition frequency 1/T when the time-window Size is exactly matched to the repetition period T, a combination of dFTS with a spectral interleaving technique achieves a spectral resolution limited only by the spectral interleaving interval. Linewidths narrower than 1/(50T) are fully resolved by THz-dFTS, allowing rotational-transition absorption lines of low-pressure molecular gases to be attributed within a 1.25 MHz band.
-
super resolution discrete fourier transform spectroscopy using precisely periodic radiation beyond time window Size Limitation
arXiv: Optics, 2014Co-Authors: Takeshi Yasui, Yuki Iyonaga, Yi-da Hsieh, Yoshiyuki Sakaguchi, Francis Hindle, Shuko Yokoyama, Tsutomu Araki, Mamoru HashimotoAbstract:Fourier transform spectroscopy (FTS) has been widely used in a variety of fields in research, industry, and medicine due to its high signal-to-noise ratio, simultaneous acquisition of signals in a broad spectrum, and versatility for different radiation sources. Further improvement of the spectroscopic performance will widen its scope of applications. Here, we demonstrate improved spectral resolution by overcoming the time window Limitation using discrete Fourier transform spectroscopy (dFTS) with precisely periodic pulsed terahertz (THz) radiation. Since infinitesimal resolution can be achieved at periodically discrete frequencies when the time window Size is exactly matched to the repetition period T, a combination of THz-dFTS with a spectral interleaving technique achieves a spectral resolution only limited by the spectral interleaving interval. Linewidths narrower than 1/(50T) are fully resolved allowing the attribution of rotational-transition absorption lines of low-pressure molecular gases within a 1.25 MHz band. The proposed method represents a powerful tool to improve spectrometer performance and accelerate the practical use of various types of FTS.
Adela Marcu - One of the best experts on this subject based on the ideXlab platform.
-
Catalyst Size Limitation in vapor–liquid–solid ZnO nanowire growth using pulsed laser deposition
Thin Solid Films, 2012Co-Authors: Adela Marcu, C. Grigoriu, Reza R. Zamani, Lucian Trupina, Jordi Arbiol, Joan Ramon MoranteAbstract:Abstract Using a pulsed laser deposition system in a plane reflector configuration, we have grown single crystal ZnO nanowires using different gold catalyst quantities and different local particle fluxes. The number of ZnO nanowire over the square micrometer substrate surface proved to depend on both gold quantity and particle flux, in specific conditions. If for a “low particle flux” the nanowire density seems to strongly depend on the gold quantity, for a “high particle flux”, the dependence is no longer observable. The results were interpreted in terms of the catalyst absorbed particle concentration dependence on the catalyst droplet Size and incident particle flux.
-
catalyst Size Limitation in vapor liquid solid zno nanowire growth using pulsed laser deposition
Thin Solid Films, 2012Co-Authors: Adela Marcu, C. Grigoriu, Reza R. Zamani, Lucian Trupina, Jordi Arbiol, Joan Ramon MoranteAbstract:Abstract Using a pulsed laser deposition system in a plane reflector configuration, we have grown single crystal ZnO nanowires using different gold catalyst quantities and different local particle fluxes. The number of ZnO nanowire over the square micrometer substrate surface proved to depend on both gold quantity and particle flux, in specific conditions. If for a “low particle flux” the nanowire density seems to strongly depend on the gold quantity, for a “high particle flux”, the dependence is no longer observable. The results were interpreted in terms of the catalyst absorbed particle concentration dependence on the catalyst droplet Size and incident particle flux.
Oguzhan M Kulekci - One of the best experts on this subject based on the ideXlab platform.
-
a method to overcome computer word Size Limitation in bit parallel pattern matching
International Symposium on Algorithms and Computation, 2008Co-Authors: Oguzhan M KulekciAbstract:The performance of the pattern matching algorithms based on bit-parallelism degrades when the input pattern length exceeds the computer word Size. Although several divide-and-conquer methods have been proposed to overcome that Limitation, the resulting schemes are not that much efficient and hard to implement. This study introduces a new fast bit-parallel pattern matching algorithm that is capable of searching patterns of any length in a common bit-parallel fashion. The proposed bit-parallel length invariant matcher (BLIM) is compared with the Shift-Or and bit-parallel non-deterministic matching (BNDM) algorithms along with the standard Boyer-Moore and Sunday's quick search, which are known to be the very fast in general. Benchmarks have been conducted on natural language, DNA sequence, and binary alphabet random texts. Besides the length invariant architecture of the algorithm, experimental results indicate that on the average BLIM is 18%, 44%, and 6% faster than BNDM, which is accepted as one of the fastest algorithms of this genre, on natural language, DNA sequence and binary random texts respectively.
