Towards the end of the fifties methods for planning, scheduling, and control of proj ects were developed on the basis that the evolution of a project can be associated with a special weighted directed graph, called activity network. In this association, the individual activities of the project correspond to the arcs, the so-called proj ect events (beginning or termination of activities) correspond to the nodes, and the durations of the activities correspond to the weights of the respective arcs of the directed graph. 1) Contiguous arcs are assigned to activities which succeed one another immediately. The event corresponding to a node occurs exactly at the time at which all activities which are associated with the arcs leading into the node are terminated. After the occurrence of an event all those activities are be gun which correspond to the arcs emanating from the respective node. This implies especially that the evolution of the project has to be uniquely determined before hand, that every activity and every event are realized exactly once during the exe cution of the project, and that "feedback" (corresponding to cycles in the asso ciated network) is not permitted. Many projects, for example most R&D projects and projects in the area of production p 1 anni ng, do not sa ti sfy the foregoi ng res tri cti ons."

Dieses aus drei Einzelb{nden bestehende Werk bietet einen umfassenden ]berblick }ber das Gebiet des Operations Research (OR). Das Buch entstand aus einem Kurs der Fernuniversit{t Hagen, die Autoren sind herausragende, auch international anerkannte Fachvertreter. Das Werk ist Lehrbuch und Nachschlagewerk gleichzeitig. Durch viele -konomische und geometrische Beispiele, durch ]bungsaufgaben und deren L-sungen (im Anhang) ist das Buch auch zum Selbststudium geeignet. Die Breite der behandelten Themen, Sachwort- und Literaturverzeichnisse erm-glichen eine Orientierung }ber das gesamte Fachgebiet. In jedem Kapitel des Buches werden neben den Grundallgen der relevanten Theorie auch die entsprechenden Verfahren (Methoden, Algorithmen) dargestellt. Teil 2 behandelt die Theorie der Graphen, Netwerkprobleme und deren L-sung, Transport- und verwandte Probleme sowie die ganzzahlige Optimierung.

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfangen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen fur die historische wie auch die disziplingeschichtliche Forschung zur Verfugung, die jeweils im historischen Kontext betrachtet werden mussen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfangen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen fur die historische wie auch die disziplingeschichtliche Forschung zur Verfugung, die jeweils im historischen Kontext betrachtet werden mussen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

Jeckle appears more human than dog. However, his attorney and barking interpreter, Juan Antonio, consistently argues that he should be judged as a dog. First, Jeckle is arraigned as an adult on several serious felony charges, before being transferred to juvenile court. There, he testifies about his experience in the K9 unit, goes after a flipped bone, and both he and Juan Antonio end up in juvenile hall. After Jeckle's escape, the two protagonists are returned to adult court for a preliminary hearing that leads to Flatton mental hospital and a ninety-day dognostic study to determine their competency to go to trial.

Once at Flatton, Jeckle and Juan Antonio find themselves at the mercy of a giant counselor and a psycho/psychiatrist. At the end of the dognostic study, a riot allows all dogs to escape. The fleeing dogs soon find themselves racing south on California freeways and being pursued by helicopters, police, the news media, Governor Schwarzendogger, and others. The run leads into Mexico where the dogs run a race at a Tijuana dog racetrack and later party at Rosarito Beach. Unfortunately, Jeckle is finally extradited to Los Angeles to stand trial for all his alleged atrocities.

This book provides a wide range of research in both illegal and legal drug substances from around the globe such as examinations of FDA approved pharmaceuticals, different methods of drug delivery, and the investigation of illegal distribution of drug products and its effects on substance abuse.

This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide.