منابع مشابه
Crowded Spectrum in Wireless Sensor Networks
With the exciting progress of wireless sensor network (WSN) research, we envision that in 5-10 years, the world will be full of low power wireless sensor devices. Due to the independent design and development, together with the unexpected dynamics during deployment of co-existing networks and devices, the limited frequency spectrum will be extremely crowded. Plus, existing electric appliances l...
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As Aristotle noted, “man is by nature a social animal”. We do not live in isolation. On a daily basis, thousands of individuals walk in terminals, malls or city centers. They consciously or unconsciously interact with each other. They make decisions on where to go, and how to get to their destination. Their mobility is often influenced by their surrounding. Understanding human social dynamics p...
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The quantitative spectroscopy of stellar objects in complex environments is mainly limited by the ability of separating the object from the background. Standard slit spectroscopy, restricting the field of view to one dimension, is obviously not the proper technique in general. The emerging Integral Field (3D) technique with spatially resolved spectra of a two-dimensional field of view provides ...
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This is an important book but unfortunately the people who need most to read it are the least likely to do so. It consists of a series of short essays by an unusual group of scholars ranging from biologists, historians and economists to lawyers, statesmen and clergymen. The population problem is approached from the various and varied points of view represented by these contributors, all of whom...
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ژورنال
عنوان ژورنال: Science
سال: 1959
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.130.3384.1223