Installing a local area compact disk network

MEMS-based compact dual-band bandpass filters with applications to wireless local area network

This paper reports two types of compact dual-band bandpass filters for wireless local area network (WLAN) applications operating at two frequency bands of 2.4 and 5.2 GHz. The two types of filters (contact-type and capacitive-type) are focused on their digital mode operations in order to alternatively select the operational frequency band of the WLAN. Different types of micromachined frequency-...

A Compact Monopole Antenna for Wireless Personal Area Network

A compact planar monopole antenna suitable for wireless personal area network (WPAN) application is proposed. By simply modifying the periphery of a rectangular patch, effective operational band 2.95 to 16.8 GHz is achieved. This band sufficiently covers the operating band, 3.1–10.6 GHz, of the new wireless personal area network (WPAN) using ultra wide band (UWB) technique. A prototype of the p...

Designing, Constructing and Installing a Local Exhaust Ventilation System to Minimize Welders\' Exposure to Welding Fumes

Background & Aims of the Study: Welder’s exposure to welding fumes can cause occupational diseases. The current study sought to examine exposure to welding fumes among welders who work in the repair shop of Sarcheshmeh Copper Complex and design a local exhaust ventilation system to control exposure to welding fumes. Materials & Methods: This applied analytical study was co...

Compact Endomorphisms of Certain Subalgebras of the Disk Algebra

Prices for local area network equipment

In this paper we examine quality-adjusted prices for local area network (LAN) equipment. Hedonic regressions are used to estimate price changes for the two largest classes of LAN equipment, routers and switches. A matched model was used for LAN cards and the prices for hubs were inferred by using an economic relationship to switches. Overall, we find that prices for the four groups of LAN equip...