نتایج جستجو برای: modem

تعداد نتایج: 3087  

Journal: :Academic journal of computing & information science 2023

OFDM is one of the most widely used multi-carrier modulation technologies in wireless communication. However, case high mobility, orthogonality between sub-carriers destroyed due to existence time selective fading, and performance system greatly affected. In order reduce this effect, data can be pre-coding before modulation. The technique adopted paper Walsh-Hadamard transform (WHT). are distri...

Journal: :Journal of the Korea Academia-Industrial cooperation Society 2011

Journal: :Rheumatology Science and Practice 2008

Journal: :Medieval Feminist Newsletter 1991

1999
Thomas Sailer

This article describes a simple and inexpensive modem intended to link end users at 76.8kBit/s to the high speed backbone network. The modem can be connected to standard PC’s using the Universal Serial Bus (USB).

1998
Thomas Sailer

This article describes a simple and inexpensive modem intended to link end users at 76.8kBit/s to the high speed backbone network. The modem can be connected to standard PC’s using the Enhanced Parallel Port (EPP) interface.

Journal: :RFC 2003
Ignacio Goyret

Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract The Layer 2 Tunneling Protocol (...

2010
Ying Li Lan Chen Bridget Benson Ryan Kastner

T Few dense underwater acoustic sensor networks (UWSN) currently exist because existing commercial acoustic modems are too expensive and power consuming. In order to enable the proliferation of UWSN, a new low-cost, low-power acoustic modem must be designed. This paper investigates the appropriate computational platform and presents the design of a complete FPGA implementation of a Frequency Sh...

Journal: :journal of biomedical physics and engineering 0
f shekoohi-shooli ionizing and non-ionizing radiation protection research center, shiraz university of medical sciences, shiraz, iran s m j mortazavi ionizing and non-ionizing radiation protection research center, shiraz university of medical sciences, shiraz, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (shiraz university of medical sciences) m b shojaei-fard 1ionizing and non-ionizing radiation protection research center, shiraz university of medical sciences, shiraz, iran 2deسازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (shiraz university of medical sciences) s nematollahi 3biostatistics department, school of medicine, shiraz university of medical sciences, shiraz, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (shiraz university of medical sciences) m tayebi 1ionizing and non-ionizing radiation protection research center, shiraz university of medical sciences, shiraz, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شیراز (shiraz university of medical sciences)

background: the use of devices emitted microwave radiation such as mobile phones, wireless fidelity (wi-fi) routers, etc. is increased rapidly. it has caused a great concern; the researchers should identify its effects on people's health. we evaluated the protective role of vitamin c on the metabolic and enzymatic activities of the liver after exposure to wi-fi routers. material and methods: 70...

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