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A revised version of this book is now available.The polyethylene industry has been in the midst of major restructuring and rationalization. This has lead to joint ventures and alliances to combine technologies and exploit opportunities to maximize improvements in process productivity, catalyst innovations, and enhancements in extrusion technology and converting. This comprehensive study of the polyethylene film extrusion process describes this technology in detail. In depth descriptions of the manufacturing processes for polyethylene homopolymers and copolymers, including metallocenes, are reviewed. All aspects of machine design with particular emphasis on screws and dies including coextrusion are discussed comprehensively. With computer modeling, the interactions between equipment and polymer are quantified. All aspects of equipment design and polymer features that control melt fracture, interfacial instabilities, gauge control, output and temperature, and cooling of blown and cast film processes are presented quantitatively. This methodology will highlight solutions in troubleshooting for optimum design and operation and the best available polymer and formulation choices. All polyethylene film applications in packaging, agriculture, lamination, and construction, consumer, industrial, and health care are reviewed and discussed in depth.

If you practice karate, you know that competitors are getting tougher; you need to be at the top of your game to beat them. Andrew Ahlsten, a third-degree black belt who has trained in Japan, shares his expertise so you can hone your skills with ease. Bridging the Gap can help you to . know what training exercises to focus on and why; . understand how to set goals and how to achieve them; . appreciate ancient Samurai philosophy and Japanese traditions; . be able to prevent injuries and recover fast when they occur. To become a better practitioner of karate, you must have the passion, drive, and the clarity to achieve what you want to do. It is also essential to incorporate certain concepts and exercises into your training regimen; Bridging the Gap provides you with the resources to do just that. Take the necessary steps to become a better competitor, achieve greatness, and learn the latest training methods that will make you a karate master.

During the terror of World War II, German forces occupy the island of Jersey, only twelve miles off the coast of Normandy, France. The residents despise their German overlords and particularly the forced labour camp located on the small island.As a young boy, Richard Le Miere watches the camp prisoners shuffle past him every day on their way home from school, and he soon befriends one of the Polish POWs, a boy named Alex. The two speak through the camp fence and share their troubles, forging a bond made only possible by the war.Richard discovers Alex's father has died, and he gives Alex a teddy bear to help him cope, but it's not enough. Alex's body has been weakened from hard labour, diphtheria, and lack of food; he will not survive this ordeal unless Richard steps in and does something unthinkable: help Alex escape. Will his daring plan work or will he too end up a prisoner of the Germans?Filled with vivid historical detail, Tears in the Sand is a moving portrait of compassion, friendship, and hope in the face of the tragedy of war.

During its five thousand years of history and culture, Korea has been attacked and invaded by other countries eight hundred times. Despite all its past tragedies, Korea has risen from the ashes and become one of the ten strongest economic countries in the world-all because its people have kept their thoughts, culture, and roots alive. In Korean Thought and Culture: A New Introduction, Dr. Chai-Shin Yu shares the results of his extensive research. He offers careful interpretation of historical facts and in-depth exploration of past events, while determining whether Old-Korean thought culture has always existed independently or arose initially through the sole influence of China. A seasoned lecturer on Korean culture and thought, Dr. Yu relies on his professional experience to provide a comprehensive study of Korean and East Asian thought and culture, the influence of Korea on Japanese culture, Korean philosophers, and other Asian and Christian thoughts and cultures. -- Back cover.