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RADAR is used to illuminate an object by using a transmitter and receiver to detect its position and velocity.

Microwave Applications in Thermal Food Processing, The Development and Application of Microwave Heating, Wenbin Cao, IntechOpen, DOI: 10.5772/48716. Microwave energy overcomes the problem of very high heat transfer and conduction resistances, leading to higher drying rates.
Due in large part to the overwhelming success of microwave ovens for home use, microwave processing is seen by the unwary as a panacea for all heating applications. Some of the advantages compared with conventional heating methods include speed of operation and no additional water required. You may need to download version 2.0 now from the Chrome Web Store. Help us write another book on this subject and reach those readers. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Based on the same throughput, the investment needed for microwave-vacuum drying is rather high, while the energy figures are more favorable than for air drying. These rates are a main advantage of this technique. Since the heating migration in microwave processing occurs from the initial and hottest locations in the interior of the food, it is difficult to locate and assess the cold point, as in traditional thermal methods. In the near future, it is expected that researchers interested in this matter will discover more specific effects that may be advantageous in the processing of food by microwave blanching. Another disadvantage of microwave heating as opposed to conventional heating is the need for electrical energy, which is its most expensive form. In contrast the retention of water soluble aromas, as in apples, is not as advantageous, since the microwave energy generates many vapour bubbles, so that the volatile aromas have a large surface to evaporate. Pressurized steam reduces blanching time. The most common application of Microwave is its use in RADAR and SONAR. Another way to prevent getting this page in the future is to use Privacy Pass. Studied applications of microwave pasteurization or sterilization cover pre-packed food like yoghurt or pouch-packed meals as well as continuous pasteurization of fluids like milk (Helmar et al., 2007). That is natural and perfectly appropriate, since microwave ovens operate at 2.45 GHz, which is in the microwave and wireless frequency band. Fixed traffic speed cameras; For radar, which is used by aircraft, ships and weather forecasters. Ibrahim, A.H. El-Ghorab, K.F. As the food industry does not disclose all its production processes, we cannot expect this list to be complete. Performance & security by Cloudflare, Please complete the security check to access. Leaching and degradation of nutritive components, such as sugars, minerals and vitamins, may occur when blanching with water or steam. By 1982 patents had been issued overcoming this problem by using metal baking pans in microwave ovens (Schiffmann et al., 1981 and Schiffmann, 1982). When the microwave energy is turned off and the food is removed from the oven, there is no residual radiation remaining in the food.

Although, physically non-thermal effects on molecules are very improbable, early works seemed to show just these effects. On large objects subjected to long uncontrolled thawing cycles, surface spoilage can occur before the centre regions have fully thawed. When the process temperature is not adequate, the enzymatic deteriorative action may prevail or even increase in some cases.

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