Walls That Can Be Tuned

In this era of telecommunications when most systems are being made wireless, the need for security has increased tremendously because various signals need to be protected and isolated from each other. Meeting both these requirements simultaneously can present a host of challenges. Currently, mobile communication and Wireless Internet Local Area Network (WLAN) systems are being designed on the basis of a detailed analysis of Radio Frequency (RF) coverage and capacity requirements. Security and privacy issues can be addressed through good design but “eavesdropping” continues to be a real vulnerability. A revolutionary technology, called Frequency Selective Surface (FSS), is increasingly being proposed and used as an answer to the deployment of secure wireless systems for indoor environments, taking advantage of innovative techniques in building design and the use of attenuating material. Towards the end of the eighteenth century, the American physicist D. Rittenhouse discovered that some colours of a light spectrum

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Garden for Birds # 3

Well, another week is passing us by. I want to thank everyone who writes me back. Gardens and birds can bring total strains together. IS NOT IT GREAT! I feel as though I'm getting to know you and we are becoming neighbors. You may have fledgling by now. None for me just yet. Even with Michigan weather, things are changing in the yard everyday now. Birds come and go. Plants seem to grow a foot some days. New blooms, new plants. Chipmunk is still on the loose. Karen is in a battle with some rabbits munching down her pansies. Baby powder works wonderful until it rains. Same with ammonia water. I may have to break down and get some liquid fence. Oh well ……………………. Last week I was pointing out ways to attract more birds by building under the tree canopies. There are birds that live in all levels of

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Advantages and Disadvantages of Recycling Paper

People will often say that it is good to recycle your paper from the other rubbish you throw into the garbage bin, but is it really worth the effort? O.K. Let’s begin! On the one side, there’s Pro; In Favor: The principal point in support of recycling paper is that it reduces the number of trees and therefore also the number of forests that must be felled around the world each year, for wood pulp. The secondary positive point is: In good times your local municipal council should be able to make a profit from the sale price on the paper they recycle. Another big benefit is that the carbon emissions created by shipping new paper from the forest to the printer’s factory are avoided. And finally, the recycling jobs that are created to process your recycled materials are local jobs in your community, which would not otherwise exist. And

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Deductible Auto Expenses

Standard Mileage Rates The standard mileage rates enable a taxpayer using a vehicle for specified purposes to deduct vehicle expenses on a per mile basis rather than deducting actual car expenses that are incurred during the year. The rates vary, depending on the purpose of the transport. Correspondingly, the standard mileage rates differ from one another depending on whether the vehicle is used for business, charitable purposes, obtaining medical care or relocating for employment. It is very important that taxpayers keep accurate records when it comes to deducting these uses of their personal vehicles in the form of mileage and or receipts for actual expenses. Business Use of a Taxpayer's Personal Vehicle A taxpayer may deduct unreimbursed employee expenses, including unreimbursed expenses related to business use of a personal vehicle as "miscellaneous itemized deductions" to the extent the total of such expenses exceeds 2% of his or her adjusted Gross

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