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This book constitutes the refereed proceedings of the 7th International Conference on Logic Programming and Nonmonotonic Reasoning, LPNMR 2004, held in Fort Lauderdale, Florida, USA in January 2004. The 24 revised full papers presented together with 8 system descriptions were carefully reviewed and selected for presentation. Among the topics addressed are declarative logic programming, nonmonotonic reasoning, knowledge representation, combinatorial search, answer set programming, constraint programming, deduction in ontologies, and planning.
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Quantum mechanics has been mostly concerned with those states of systems that are represented by state vectors. In many cases, however, the system of interest is incompletely determined; for example, it may have no more than a certain probability of being in the precisely defined dynamical state characterized by a state vector. Because of this incomplete knowledge, a need for statistical averaging arises in the same sense as in classical physics. The density matrix was introduced by J. von Neumann in 1927 to describe statistical concepts in quantum mechanics. The main virtue of the density matrix is its analytical power in the construction of general formulas and in the proof of general theo...
Atoms and molecules in all states of matter are subject to continuous irregular movement. This process, referred to as diffusion, is among the most general and basic phenomena in nature and determines the performance of many technological processes. This book provides an introduction to the fascinating world of diffusion in microporous solids. Jointly written by three well-known researchers in this field, it presents a coherent treatise, rather than a compilation of separate review articles, covering the theoretical fundamentals, molecular modeling, experimental observation and technical applications. Based on the book Diffusion in Zeolites and other Microporous Solids, originally published in 1992, it illustrates the remarkable speed with which this field has developed since that time. Specific topics include: new families of nanoporous materials, micro-imaging and single-particle tracking, direct monitoring of transient profiles by interference microscopy, single-file diffusion and new approaches to molecular modeling.
"The only continuing source that helps users analyze, plan, design, evaluate, and manage integrated telecommunications networks, systems, and services, The Froehlich/Kent Encyclopedia of Telecommunications presents both basic and technologically advanced knowledge in the field. An ideal reference source for both newcomers as well as seasoned specialists, the Encyclopedia covers seven key areas--Terminals and Interfaces; Transmission; Switching, Routing, and Flow Control; Networks and Network Control; Communications Software and Protocols; Network and system Management; and Components and Processes."
The year is 1792, and although American independence has been secured, individual freedoms are still elusive for many. Adam Eckfeldt is an apprentice to his fathers blacksmith business. For his father Jacob, there is no question the young man will someday replace him, but Adam has other aspirations. The Eckfeldt family slave has his own dreams. Christian yearns for emancipation. This yearning only increases when he falls in love with Ona Judge, maid to Lady Martha Washington. In post-revolutionary Philadelphia, Adam and Christian must forge the pathway to their dreams. These friends navigate the unfamiliar territory of the early abolitionist movement as well as the ins and outs of the Washington household. Their unlikely friendship and their loyalties are tested as they each face dilemmas that will alter the course of their young lives.
"Combination of The Hunger Games, The 100 and Divergent!" They said nothing could survive outside. They lied… Welcome to Echelon, a domed city that protects the survivors of a ravaged Earth. Here, the wealthy elite live in Sky, high above the poor dwellers of Dirt. And Dirt children known as Decimites are injected with nanobots, allowing them to survive in a world ravaged by toxins. Forced to gather resources from Outside, their enhancements grant them a chance for a better life. But few live long enough to enjoy it… Dirt Dweller Myla wasn’t chosen to be a Decemite. But she still carries the nanobots in her blood—a secret she has revealed only to a chosen few. When Myla’s young sister disappears after her first mission Outside, Myla must leave the safety of her dome to find her. Lock, a Decimite champion, joins Myla on her journey. But as they venture across the perilous wasteland, they meet Ben, a human living beyond the dome. This young rebel shows Myla that life Outside is nothing like what she was told. To find her sister, she’ll need both Ben and Lock’s help. But if Lock discovers the secret hiding in Myla’s blood, the penalty is death…