نتایج جستجو برای: compact gain medium

تعداد نتایج: 486414  

Journal: :American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 2003

2003
B. A. Cetiner J. Y. Qian S. Liu L. Jofre F. De Flaviis

In this paper we introduce a wideband three-element diversity antenna for compact wireless communication systems operating at the 4-6 GHz band. A series of experiments to characterize the diversity performance of the antenna for non-line-of-sight (NLOS) indoor multipath environments have been conducted. From these experiments, we calculate envelope correlation, power imbalance, and diversity ga...

ژورنال: پژوهش های ریاضی 2020

In this paper we study the concept of Arveson spectrum on locally compact hypergroups and for an important class of compact countable hypergroups . In thiis paper we study the concept of Arveson spectrum on locally compact hypergroups and develop its basic properties for an important class of compact countable hypergroups .

Journal: :Journal of research of the National Bureau of Standards 1948
E L R CORLISS G S COOK

'I A cavity pressure method for measuring t he gain of hearing aids has been--developed. It has the advantage of req uiring no " dead " room, allo~ing a compact setup. The method has been investigated as to its validity and t he degree to which diffraction effects are avoided. Comparisons with free-field data are made. The applicability of results obtained by this method to t he specifi cation ...

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