UCLA creates the world's smallest

incandescent lamp

In an effort to explore the boundary between thermodynamics and quantum mechanics — two fundamental yet seemingly incompatible theories of physics — a team from the UCLA Department of Physics and Astronomy has created the world's smallest incandescent lamp.

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Elektor: 303 Circuits

Linear Hall-effect sensor features

The new A1354 from UK-based Allegro MicroSystems Europe is a programmable, precision two-wire Hall-effect linear sensor that has a pulse-width modulated (PWM) output with duty cycle proportional to the applied magnetic field.

پیش بینی محدوده پوشش وتحلیل

عملکردسیستم های کلانشهر وسلولی

مبتنی بر استاندارد IEEE802.16

http://irmega.googlegroups.com/web/www.dataking.blogfa.com.pdf?hl=en&gda=BCv1Wk0AAABmzfazMsQjQCjwICnyjJUSE5KlhaDzdhVmUzL7CqFbRfAcbXrFe_AWJMJdpI2SkGlX6IM2FXhpoNpwHxoxywzL5Tb_vjspK02CR95VRrtmeQ&gsc=FkcrYgsAAAAl55uCp_W0T3cYrEkuIIY_

مدولاسیون QAM