This book is for those new to programming or that know other programming languages and would like to know Ruby. The book teaches the fundamentals of object-oriented programming and starts with creating a basic program. Everything is covered such as control structures and variables, taking input, and creating output. Moving from the basic to more advanced topics, a solid understanding of Ruby is taught in logical progression. The book ends with an overview of the Web development framework, Ruby on Rails.

Server Sprawl and escalating IT costs have managers and system administrators scrambling to find ways to cut costs and reduce Total Cost of Ownership of their physical infrastructure. Combining software applications onto a single server, even if those applications are from the same software vendor, can be dangerous and problems hard to troubleshoot.

Internationally, the wetlands of headwater and upland regions provide many valuable environmental services. This book moves towards a more comprehensive inventory of the benefits and costs of headwater wetlands. It evaluates the research that tries to understand the tolerances, exchanges, checks and balances within headwater landscapes and the downstream impacts of changes in wetlands. It employs case studies and reviews from 21 nations spanning Europe, Africa, Asia and the Americas.

Creating a virtual network gives network administrators a way to maximize the usage of their servers. This will be the only book on the market that outlines how to manage all aspects of virtualization across an enterprise. Other books focus on single aspects of virtualization, without delving into the interrelationships of the technologies.

Investing in options sounds so risky that many people fail to capitalize on this potentially lucrative opportunity. In non-technical, easy-to-follow terms, this book thoroughly demystifies the options markets, distinguishes the imagined risks from the real ones, and arms investors with the facts they need to make informed decisions. 65 charts. 55 tables.

If you’re involved in planning, deploying, or managing virtualization, this book brings together all the field-proven, in-the-trenches answers and solutions you’ll need. Packed with examples and case studies, Practical Virtualization Solutions is a complete, self-paced, hands-on guide to creating a virtualized environment and driving maximum value from it throughout its entire lifecycle.

The development and quality assurance of such high-tech materials as semiconductors or biopolymers demand special analytical methods for surfaces and thin films. This book presents the whole spectrum of methods available in a clear manner, moving beyond the basics, equipment and applications to compare these methods. This allows users to find the optimum method in solving any given problem.

Queueing Theory with Applications to Packet Telecommunication is an efficient introduction to fundamental concepts and principles underlying the behavior of queueing systems and its application to the design of packet-oriented electrical communication systems. In addition to techniques and approaches found in earlier works, the author presents a thoroughly modern computational approach based on Schur decomposition. This approach facilitates solution of broad classes of problems wherein a number of practical modeling issues may be explored.

“Intended as an upper-level undergraduate or introductory graduate text in computer science theory," this book lucidly covers the key concepts and theorems of the theory of computation. The presentation is remarkably clear; for example, the "proof idea," which offers the reader an intuitive feel for how the proof was constructed, accompanies many of the theorems and a proof. Introduction to the Theory of Computation covers the usual topics for this type of text plus it features a solid section on complexity theory – including an entire chapter on space complexity.

Применение виртуальных машин дает различным категориям пользователей — от начинающих до IT-специалистов — множество преимуществ. Это и повышенная безопасность работы, и простота развертывания новых платформ, и снижение стоимости владения. И потому не случайно сегодня виртуальные машины переживают второе рождение. В книге рассмотрены три наиболее популярных на сегодняшний день инструмента, предназначенных для создания виртуальных машин и управления ими:...

This comprehensive reference provides you with all the information you’ll need to plan, install, and configure this powerful operating system. It covers all the new features, offering an in-depth look at the latest Active Directory, networking, and communication services. It’s also packed with proven techniques for ways you can improve security, handle disaster recovery, and troubleshoot problems. And it shows you how to enhance File, Print, and Web services so you can optimize your system.

Addresses the use of rigorous multicomponent mass transfer models for the simulation and design of process equipment. Deals with the basic equations of diffusion in multicomponent systems. Describes various models and estimations of rates of mass and energy transfer. Covers applications of multicomponent mass transfer models to process design. Includes appendices providing necessary mathematical background. Contains a large number of numerical examples worked out in detail.

There are three parts to tuning an Oracle database: data modeling, SQL code tuning and physical database configuration.
A data model contains tables and relationships between tables. Tuning a data model involves normalization and de-normalization. Different approaches are required depending on the application, such as OLTP or a Data Warehouse. Inappropriate database design can make SQL code impossible to tune. Poor data modeling can have a most profound effect on database performance since all SQL code is constructed from the data model.