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Security in every aspect of our lives is a fundamental factor that contributes to our daily comfort and survival. Without modern security systems we鈥檇 probably feel paranoid and unsafe in our own homes nike air vapormax moc uk , communities, and workplace. The evolution of technology has gone far beyond the medieval bolts and chains and traditional lock and keys to keep intruders out. These days, businesses, buildings nike air vapormax moc 2 uk , and homes are installed with security access control systems.

Access control systems make sure that only authorized personnel or users can have access to a specific resource. For example, a big organization that has a wealth of resources and data in several rooms in a building can install access control systems for each room to control access to those rooms. Only employees who are registered into the system can go in and out.

This technology guarantees that only the right people can lay eyes on sensitive information and handle expensive equipment in the workplace. Access control systems also record entries and exits, so it would be easier for managers and business owners to monitor and locate their personnel at any given time. There are different types of key technologies used in access control.

Smart Cards and Tokens

Smart cards can have the same size as your credit card and contain either a microchip or a magnetic stripe that has the user鈥檚 data. Smart cards are swiped on an access control device to allow access to a secured area. Tokens in access control systems are similar to smart cards but can only be used once to enter secure computer networks. User鈥檚 data from smart cards and tokens are verified with the company鈥檚 database to confirm identity and set the level of security clearance.

Passwords and PINs

Most access control systems utilize passwords and pins together with smart cards or other physical credentials. Passwords and personal identification numbers (PIN) guarantee that even when your smart card or access badge is stolen, the thief will still have a hard time hacking into the system or won鈥檛 easily enter a room. Consecutive incorrect password or PIN entries will alert the security department and possibly put the building in lockdown.

Biometric Systems

The latest and most sophisticated key to an access control system is biometrics. This involves encoding into the database human characteristics of the user such as fingerprint nike air vapormax 2.0 uk , handprint, retina, voice, or facial structure. This key technology is considered foolproof because unless human cloning is perfected nike air vapormax 97 uk , there is no way for an intruder to replicate another human鈥檚 unique physical attributes. For more information on access control systems, visit .

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For more details, search access control systems and access control system in Google for related information.

There are over 75 million cats in the USA and all cat owners know that urine stains and odor are a big problem.

When cats urinate for physiological elimination, they do it on horizontal or flat surfaces nike air vapormax plus uk , e.g. the ground of the litter box. When they use their urine to mark their territory, cats spray on vertical surfaces. In both cases the urine may come in contact with a carpet or some furniture.

The urine of cats is of amber color, it is a waste fluid that is excreted by the kidney and contains waste products from the cat's metabolism. The color and odor of the urine, as well as its staining potential nike air vapormax flyknit uk , depend on the food the cat consumes, its age, sex, and health condition nike air vapormax flyknit moc uk , etc.

The urine of older cats contains more plasma proteins but less uric acephalia, so it is less likely to leave stains on the carpet but its odor will be stronger.

Urine penetrates into absorbent material, for example in carpets, upholstery nike air vapormax flyknit utility uk , mattresses. The surface of such material can be clean very well but it is very difficult to clean the inside. Odor and stain often remain even after a thorough cleaning. The following guideline may help you eliminate the odor of cat's urine.

Cleaning Cat Urine from the Carpet

Cleaning urine from the carpet is one of the most difficult tasks for cat owners. Here are some things you can do in case your cat has urinated on the carpet.

The first thing you should do is to soak up the urine as much as possible. Use a soft, clean cloth or absorbent paper and press down without rubbing for about 30 seconds. The removal of fresh urine before it dries will makes it easier to clean and to remove the odor afterwards. Once the "accident zone" is dry, rinse it with clean water. Then, blot up as much of the water as possible. After that there are several things to do:

1. Baking soda is effective for elimination of surface odors. Get the area wet with water and sprinkle baking soda on it. Rub the soda into the carpet and let it dry. Then remove the dry material by brushing or vacuuming it.

2. Put together a quart of warm water and half a cup of white vinegar. Apply the mixture on the urine stain nike air vapormax flyknit 2 uk , put dry towels on the stain and place a heavy object over the towels to increase the pressure. Leave it for a few hours and then remove the towels.

3. Old or heavy stains are best removed with extractors or wet-vacuum cleaner machines. Force the clean water into the carpet and then force back the dirty water out. Do not use chemicals with these machines, as they are more effective with clean water.

4. You can also try a combination of Listerine mouthwash and waterperoxide mixture. It is very effective for elimination of the odor.

5. A new way to clean cat urine from the carpet is the usage of peroxide or detergents. Spray the stained area with a product that consists of a 3% hydrogen peroxide. Wait for about five minutes and use a clean absorbent cloth and blot the aria by pressing down without rubbing for about 30 second. Repeat the same until the area is dry.

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