The use of a dielectric resonator as a resonant antenna was proposed in 1983. Due to the absence of metallic loss, the dielectric resonator antenna (DRA) is highly efficient when operated at millimetre wave frequencies. With the use of high dielectric constant material, the DRA can also be used as a small and low profile antenna when operated...

The Rosetta Stone is the most famous object in the British Museum. According to the museum’s own fi gures, it is the most visited item in the entire display, and perhaps the most lingered over, although a similar claim is sometimes made for the unwrapped mummy of a ginger tomcat which also forms part of the Egyptian collections. The...

Social Networking has quickly become a very popular activity on the Internet, particularly with the emergence of sites like Facebook and MySpace. PHP is a flexible web development language used on a wide variety of sites, including Facebook and Yahoo! But building a social networking site from scratch using PHP involves some complex logic,...

This edition of Real World Photoshop is more tightly focused for the needs and demands of the professional digital photographers. From acquiring images to using an efficient processing workflow to maintaining image quality and final output quality all within the powerful feature set of Adobe Photoshop CS5. Coverage of new CS5 features...

Blogging has been booming for years, and it shows no sign of slowing down. It is an easy and organized way to deliver news, tutorials, and podcasts;it’s even an easy way to share personal thoughts and stories. It was the social network before other social networks existed. Like blogging, WordPress has grown over the years to a mature...

People over 55 were the fastest-growing user group on Facebook in the first half of 2009, and they’re flocking to Twitter at a faster rate than their under-20 grandchildren. From basic information about establishing an Internet connection to rediscovering old...

Pro PHP Application Performance will help you understand all the technologies and components which play a role in how well your applications run. When seconds can mean the difference between retaining a user and losing a user, it's important for all of us to have optimization as part of our project roadmap. But what components within your...

Since the first edition of Semantic Web for the Working Ontologist came out in June 2008, we have been encouraged by the reception the book has received. Practitioners from a wide variety of industries— health care, energy, environmental science, life sciences, national intelligence, and publishing, to name a few—have told...

With more than 400 million active users and growing, it’s hard to ignore the buzz about Facebook. It’s a hot topic these days, and shows no signs of letting up. If you’re ready to get to the bottom of this Internet sensation and find out how to use this social networking phenomenon for yourself,...

Hacking and electronic crimes sophistication has grown at an exponential rate in recent years. In fact, recent reports have indicated that cyber crime already surpasses the illegal drug trade! Unethical hackers better known as black hats are preying on information systems of government, corporate, public, and private networks and are...

Whether you've been successfully hacked already, else...

Hacking and electronic crimes sophistication has grown at an exponential rate in recent years. In fact, recent reports have indicated that cyber crime already surpasses the illegal drug trade! Unethical hackers better known as black hats are preying on information systems of government, corporate, public, and private networks and are...