نتایج جستجو برای: new high
تعداد نتایج: 3621043 فیلتر نتایج به سال:
Head and eye movements, together with ocular accommodation enable us to explore our visual environment. The stability of this environment is maintained during saccadic and vergence eye movements due to reduced contrast sensitivity to low spatial frequency information. Our recent work has revealed a new type of selective reduction of contrast sensitivity to high spatial frequency patterns during...
In the last 20 years, rotation curves derived from H I kinematics obtained on radio synthesis instruments were used to probe the dark matter distribution in spiral and dwarf irregular galaxies. It is shown, with the aid of the Sd galaxy NGC 5585, that high resolution 2–D H II kinematics is necessary to determine accurately the mass distribution of spirals. New CFHT Fabry–Perot Hα observations a...
We investigated spatiotemporal characteristics of motion mechanisms using a new type of motion aftereffect (MAE) we found. Our stimulus comprised two superimposed sinusoidal gratings with different spatial frequencies. After exposure to the moving stimulus, observers perceived the MAE in the static test in the direction opposite to that of the high spatial frequency grating even when low spatia...
In developing a real-world complex application, we experience the major problem that complex concerns do not easily map onto low-level aspects with join-points based on fixed points in the program code. It is our observation that modularizing concerns and quantification are to be tackled at design-time, using suitable abstractions, with a translation to dynamic weaving at run-time. In particula...
This paper explores and presents scenarios and business models for mobile network operators (MNOs) in the novel hybrid use spectrum sharing concept of the Ultra High Frequency broadcasting spectrum (470-790 MHz) used for Digital Terrestrial TV (DTT) and Mobile Broadband (MBB). More flexible use of the band could lead to higher efficiency in delivering fast growing and converging MBB, media and ...
We report a new type of microstrip bandpass spiral filter structure, which exhibits much smaller size than other existing miniaturized bandpass filter structures, and is particularly useful in developing hightemperature superconducting (HTS) compact filters for cellular communication systems. A prototype three-stage HTS bandpass spiral filter with center frequency of 633 MHz was designed and fa...
Observations and interpretation of extragalactic rotational and rovibrational H2 emission are reviewed. Direct observations of H2 lines do not trace bulk H2 mass, but excitation rate. As such, the H2 lines are unique diagnostics, if the excitation mechanism can be determined, which generally requires high-quality spectroscopy and suitable additional data. The diagnostic power of the H2 lines is...
OBJECTIVES To develop and optimize quantitative HPLC method using 2,3-naphthalenedicarboxaldehyde (NDA) after simple and efficient solid phase extraction to determine the histamine in a biopharmaceutical (Histobulin™). METHODS The HPLC method was established using NDA-induced Histobulin and compared with the recently reported HPLC method using o-phthaldehyde (OPA). The validated NDA-applied H...
“Application files are piled high this month in colleges across the country. Admissions officers are poring over essays and recommendation letters, scouring transcripts and standardized test scores. But something is missing from many applications: a class ranking, once a major component in admissions decisions. In the cat-and-mouse maneuvering over admission to prestigious colleges and universi...
Recent data made available to me confirms the gathering strength of Information Polity amongst academics and professionals worldwide. Of particular significance for a journal that sets out to be international in its outreach and content is the interest to be found in the journal in the USA, India, Canada, China as well as in the UK and many other European countries. Such reach will add weight t...
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