908 research outputs found
Anderson Localization in the Sky and Cosmological Magnetic Field
We discuss the Anderson localization of electromagnetic fields in the
fluctuating plasma induced by the gravitational density perturbation before the
recombination time of the Universe. Randomly distributed localized coherent
electromagnetic fields emerge in the thermal equilibrium before the
recombination time. We argue that the localized coherent electric fields
eventually produce cosmological magnetic fields after the decoupling time.Comment: 13 pages, latex, epsfj, 3 figure
Shoreline Devastation of Hota Coast by Man-made Causes
AbstractThe impact of the removal of a river mouth bar as a measure against river mouth closure to the surrounding coasts was investigated, taking the Hota coast as an example. Also, on this coast, landfilling was extensively carried out to build a coastal road along the coastline, resulting in the narrowing of the natural sandy beach. These anthropogenic factors affected the overall shoreline on a pocket beach, devastating the natural coastal environment. We investigated the effects of these impacts using aerial photographs and field observations
Application of continuous light in a plant factory system 4. Physiological changes and concept of injury induction in plant leaves under continuous light
Physiological changes and concept of injury induction occurring under continuous light are comprehensively reviewed. Continuous light usually reduces photosynthetic rate, which may relate to changes in transpiration and leaf necrosis caused by reactive oxygen species. Other factors apart from photosynthesis may also affect leaf injuries occurring under continuous light. Continuous light sometimes increases carbohydrate and some secondary metabolite contents
Education as a Nurturing Attitude from the Perspectives of the Ego States and Basic Stances of Orthoptic Students
Observation of the clock transition at 431 nm in Yb
We report on the observation of the transition at 431 nm in Yb by depleting atoms in
a magneto-optical trap formed by the intercombination
transition. The absolute frequency of the transition to the state is
determined to be ~kHz against physical realization of
Coordinated Universal Time maintained by the National Metrology Institute of
Japan with a frequency comb. The factor of the transition to the
state and the A hyperfine constant are measured to be and
1123.273(13)~MHz, respectively. More precise spectroscopy of this transition
can lead to searches for time variation of the fine structure constant and
searches for new physics with isotope shift measurements.Comment: 5 pages, 4 figure
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