Poor Principal Walter Russ. He's "desperate" for designer Florence Waters to renovate the school's disgusting basement bathrooms, and the stress is causing him to get, "ahem, " all clogged up. Luckily, during their stressful summer-school internships, the sixth graders discover the perfect way for everyone to relax: by enjoying an ancient Roman spa and bath buried in the school's basement " Includes a classroom activity."
Scattering parameters or S-parameters (the elements of a scattering matrix) describe the electrical behaviors of linear electrical networks when undergoing various stimuli by electrical signals. The parameters of the scattering matrix are highly useful to electrical engineers involved with microwave circuit and system design. This authoritative resource provides comprehensive and detailed coverage of the wave approach to microwave network characterization, analysis, and design using scattering parameters. For the first time in any book, all aspects and approaches to wave variables and the scattering matrix are explored. The book compares and contrasts voltage waves, travelling waves, pseudo waves, and power waves, and explains the differences between real scattering parameters, pseudo scattering parameters, and power scattering parameters. Moreover, professionals find clear methods for standard single-ended multiport network design and noise analysis. This in-depth reference is packed with over 1,100 equations and numerous illustrations.
Bradley Chalkers IS the oldest kid in the fifth grade. He tells enormous lies. He picks fights with girls. No one likes him--except Carla, the new school counselor. She thinks Bradley is sensitive and generous, and knows that Bradley could change, if only he weren't afraid to try. But when you feel like the most-hated kid in the whole school, believing in yourself can be the hardest thing in the world. . . .