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Plato's Symposium - Frisbee Sheffield - Bog - Oxford University Press - Plusbog.dk

The Compact Disc Handbook - Ken C. Pohlmann - Bog - Oxford University Press - Plusbog.dk

Gene and Cell Delivery for Intervertebral Disc Degeneration - - Bog - Taylor & Francis Ltd - Plusbog.dk

Counterpunch - Meg Frisbee - Bog - University of Washington Press - Plusbog.dk

The Fluid Dynamic Basis for Actuator Disc and Rotor Theories - - Bog - IOS Press - Plusbog.dk

The Fluid Dynamic Basis for Actuator Disc and Rotor Theories - - Bog - IOS Press - Plusbog.dk

The first rotor performance predictions were published by Joukowsky exactly 100 years ago. Although a century of research has expanded the knowledge of rotor aerodynamics enormously, and modern computer power and measurement techniques now enable detailed analyses that were previously out of reach, the concepts proposed by Froude, Betz, Joukowsky and Glauert for modelling a rotor in performance calculations are still in use today, albeit with modifications and expansions. This book is the result of the author's curiosity as to whether a return to these models with a combination of mathematics, dedicated computations and wind tunnel experiments could yield more physical insight and answer some of the old questions still waiting to be resolved. Although most of the work included here has been published previously, the book connects the various topics, linking them in a coherent storyline. “The Fluid Dynamic Basis for Actuator Disc and Rotor Theories” was first published in 2018. This Revised Second Edition (2022) will be of interest to those working in all branches of rotor aerodynamics – wind turbines, propellers, ship screws and helicopter rotors. It has been written for proficient students and researchers, and reading it will demand a good knowledge of inviscid (fluid) mechanics. Jens Nørkær Sørensen, DTU, Technical University of Denmark: “(…) a great piece of work, which in a consistent way highlights many of the items that the author has worked on through the years. All in all, an impressive contribution to the classical work on propellers/wind turbines.” Peter Schaffarczyk, Kiel University of Applied Sciences, Germany: “(…) a really impressive piece of work!”Carlos Simão Ferreira, Technical University Delft: “This is a timely book for a new generation of rotor aerodynamicists from wind turbines to drones and personal air-vehicles. In a time where fast numerical solutions for aerodynamic design are increasingly available, a clear theoretical and fundamental formulation of the rotor-wake problem will help professionals to evaluate the validity of their design problem. ‘The Fluid Dynamic Basis for Actuator Disc and Rotor Theories’ is a pleasure to read, while the structure, text and figures are just as elegant as the theory presented.”The cover shows ‘The Red Mill’, by Piet Mondriaan, 1911, collection Gemeentemuseum Den Haag. Cover image: © 2022 Mondrian/Holtzman Trust.

DKK 737.00
1

Neurology, An Issue of Veterinary Clinics of North America: Small Animal Practice - Sharon Kerwin - Bog - Elsevier - Health Sciences Division -

Data-Intensive Workflow Management - Esther Pacitti - Bog - Springer International Publishing AG - Plusbog.dk

Data-Intensive Workflow Management - Esther Pacitti - Bog - Springer International Publishing AG - Plusbog.dk

Workflows may be defined as abstractions used to model the coherent flow of activities in the context of an in silico scientific experiment. They are employed in many domains of science such as bioinformatics, astronomy, and engineering. Such workflows usually present a considerable number of activities and activations (i.e., tasks associated with activities) and may need a long time for execution. Due to the continuous need to store and process data efficiently (making them data-intensive workflows), high-performance computing environments allied to parallelization techniques are used to run these workflows. At the beginning of the 2010s, cloud technologies emerged as a promising environment to run scientific workflows. By using clouds, scientists have expanded beyond single parallel computers to hundreds or even thousands of virtual machines. More recently, Data-Intensive Scalable Computing (DISC) frameworks (e.g., Apache Spark and Hadoop) and environments emerged and are being used to execute data-intensive workflows. DISC environments are composed of processors and disks in large-commodity computing clusters connected using high-speed communications switches and networks. The main advantage of DISC frameworks is that they support and grant efficient in-memory data management for large-scale applications, such as data-intensive workflows. However, the execution of workflows in cloud and DISC environments raise many challenges such as scheduling workflow activities and activations, managing produced data, collecting provenance data, etc. Several existing approaches deal with the challenges mentioned earlier. This way, there is a real need for understanding how to manage these workflows and various big data platforms that have been developed and introduced. As such, this book can help researchers understand how linking workflow management with Data-Intensive Scalable Computing can help in understanding and analyzing scientific big data. In this book, we aim to identify and distill the body of work on workflow management in clouds and DISC environments. We start by discussing the basic principles of data-intensive scientific workflows. Next, we present two workflows that are executed in a single site and multi-site clouds taking advantage of provenance. Afterward, we go towards workflow management in DISC environments, and we present, in detail, solutions that enable the optimized execution of the workflow using frameworks such as Apache Spark and its extensions.

DKK 519.00
1

Gold B1+ Pre-Fst NE TB,Port&TRD pk - Clementine Annabell - Bog - Pearson Education Limited - Plusbog.dk

The Hypocephalus: An Ancient Egyptian Funerary Amulet - Tamas Mekis - Bog - Archaeopress - Plusbog.dk

The Hypocephalus: An Ancient Egyptian Funerary Amulet - Tamas Mekis - Bog - Archaeopress - Plusbog.dk

The hypocephalus is an element of Late Period and Ptolemaic funerary equipment – an amuletic disc placed under the head of mummies. Its shape emulates the sun’s disc, and its form is planar, although it occasionally has a concave shape (in such cases, it protects the head as a funerary cap). The earliest known example can be dated to the 4th century BC and the latest to the 2nd/1st century BC. The Hypocephalus: an Ancient Egyptian Funerary Amulet analyses both the written records and iconography of these objects. So far, 158 examples are known; several, unfortunately, from old descriptions only. The relatively low number shows that the object was not a widespread item of funerary equipment. Only priest and priestly families used them, those of Amon in Thebes, of Min in Akhmim, and the ones of Ptah in Memphis. Among the examples, no two are identical. In some details, every piece is an individualized creation. Ancient Egyptian theologians certainly interpreted hypocephali as the iris of the wedjat-eye, amidst which travels the sun-god in his hidden, mysterious and tremendous form(s). The hypocephalus can be considered as the sun-disk itself. It radiates light and energy towards the head of the deceased, who again becomes a living being, feeling him/herself as ‘one with the Earth’ through this energy. The texts and the iconography derive principally from the supplementary chapters of the Book of the Dead. Some discs directly cite the text of spell 162 which furnishes the mythological background of the invention of the disc by the Great Cow, who protected her son Re by creating the disc at his death.

DKK 654.00
1

Linear Elasticity of Elastic Circular Inclusions Part 2/Lineare Elastizitatstheorie bei kreisrunden elastischen Einschlussen Teil 2 - Thomas Ranz -

Distributed Computing - - Bog - Springer-Verlag Berlin and Heidelberg GmbH & Co. KG - Plusbog.dk

insight: Advanced: Teacher's Book and Teacher's Resource Disc Pack - - Bog - Oxford University Press - Plusbog.dk

New Headway: Beginner A1: Teacher's Book + Teacher's Resource Disc - - Bog - Oxford University Press - Plusbog.dk