AIChE's first manual for testing and measuring performance of centrifugal compressors The newest addition to AIChE's long-running Equipment Testing Procedure series, Centrifugal Compressors: A Guide to Performance Evaluation and Site Testing provides chemical engineers, plant managers, and other professionals with helpful advice to assess and measure the performance of a key component in a number of chemical process operations. From petrochemical refining and natural gas production to air separation plants, efficient, safe, and environmentally-sound operations depend on reliable performance by centrifugal compressors. The book presents a step-by-step approach to preparing for, planning, executing, and analyzing tests of centrifugal compressors, with an emphasis on methods that can be conducted on-site—and with an acknowledgement of the strengths and limitations of these methods. The book opens with an extensive and detailed section offering definitions of relevant terms explained not only in words, but also with the equations used to determine their values. The book then goes on to address: Selection of instrumentation and identification of elements to be measured Strategies for data collection and evaluation Recommendations for when to schedule testing Pre-test, in-test, and post-test considerations (i.e., equipment, safety, process, and environmental) Computation and interpretation of results, including guidelines for field modifications and analysis of results The book concludes with appendices for applicable codes and standards, relevant symbols and nomenclature, and values generated from a sample performance test. With its engineer-tested procedures and thorough explanations, Centrifugal Compressors is an essential text for anyone engaged in implementing new technology in equipment design, identifying process problems, and optimizing equipment performance.
Today’s fast moving online world demands that companies have the right Cloud computing performance testing solution to be successful. Creating a poor customer experience can be catastrophic. These events can result in lost revenue, failed customer retention, and a viral spread of poor brand visibility. Anyone involved in the performance of a cloud based site will find this information valuable, especially those involved in the decision making and operations of consumer facing applications. Effective testing of performance, capacity and stability of Cloud computing systems often requires significant and, at times, cost-prohibitive investment in equipment and computing resources. This book, therefore, provides an introducer highlight on cloud computing performance testing method. This attempt will try to improved cloud computing performance testing understanding in Industry as well in engineering students who are interested doing research in same area.
Software testing has become almost the most important phase of software development. In recent years, several testing tools have been developed to accomplish the testing phase of the project. Most of these products cannot perform software testing in very large scales. Testing as a Service (TaaS) is the latest solution that has been proposed for this problem. It is a specific type of Software as a Service (SaaS) that performs software testing. It will be launched over the cloud environment and uses cloud’s unlimited resources to test software in any scale. The goal of the TaaS is to create an application that is very scalable and flexible in testing. This book explains the procedure of designing a framework for TaaS that supports functional, performance and scalability testing for online and offline applications.
The book focused on the procedure of performance evaluation of staff in Cocoa Research Institute of Nigeria, It assessed the appraisal method and instruments of performance evaluation employed by the institute and the effect on the staff performance and work-related habits. the book revealed that the procedure of evaluating the performance of staff was defective as it gave room for a lot of inadequacies and eye service among staff. it also revealed that performance evaluation was mainly employed to determine staff promotion while other uses of performance evaluation were neglected. Moreover, it revealed that even though performance evaluation is conducted annually in the institute not all staff were assessed annually. The book concluded that the aspect of conducting appraisal of staff performance every year should not be handled with levity and that performance appraisal should be a continues exercise rather than a "post Morten" exercise which is currently the situation.
Fundamental testing methodologies applied to the popular Python language Testing Python; Applying Unit Testing, TDD, BDD and Acceptance Testing is the most comprehensive book available on testing for one of the top software programming languages in the world. Python is a natural choice for new and experienced developers, and this hands-on resource is a much needed guide to enterprise-level testing development methodologies. The book will show you why Unit Testing and TDD can lead to cleaner, more flexible programs. Unit Testing and Test-Driven Development (TDD) are increasingly must-have skills for software developers, no matter what language they work in. In enterprise settings, it's critical for developers to ensure they always have working code, and that's what makes testing methodologies so attractive. This book will teach you the most widely used testing strategies and will introduce to you to still others, covering performance testing, continuous testing, and more. Learn Unit Testing and TDD—important development methodologies that lie at the heart of Agile development Enhance your ability to work with Python to develop powerful, flexible applications with clean code Draw on the expertise of author David Sale, a leading UK developer and tech commentator Get ahead of the crowd by mastering the underappreciated world of Python testing Knowledge of software testing in Python could set you apart from Python developers using outmoded methodologies. Python is a natural fit for TDD and Testing Python is a must-read text for anyone who wants to develop expertise in Python programming.
The authoritative and timely guide to ALM from Microsoft insiders and MVPs Focused on the latest release of Visual Studio, this edition shows you how to use the Application Lifecycle Management (ALM) capabilities of Visual Studio 2012 to streamline software design, development, and testing. Divided into six main parts, this timely and authoritative title covers Team Foundation Server, stakeholder engagement, project management, architecture, software development, and testing. Whether serving as a step-by-step guide or a reference for designing software solutions, this book offers a nuts-and-bolts approach to using Microsoft's flagship development tools to solve real-world challenges throughout the application lifecycle. Coverage includes: INTRODUCTION TO APPLICATION LIFECYCLE MANAGEMENT WITH VISUAL STUDIO INTRODUCTION TO TEAM FOUNDATION SERVER TEAM FOUNDATION VERSION CONTROL TEAM FOUNDATION BUILD COMMON TEAM FOUNDATION SERVER INTRODUCTION TO BUILDING STORYBOARDING CAPTURING STAKEHOLDER FEEDBACK AGILE PLANNING AND TRACKING INTRODUCTION TO SOFTWARE ARCHITECTURE TOP-DOWN DESIGN WITH USE CASE ANALYZING APPLICATIONS USING USING LAYER DIAGRAMS TO MODEL INTRODUCTION TO SOFTWARE DEVELOPMENT UNIT TESTING CODE ANALYSIS, CODE METRICS PROFILING AND PERFORMANCE DEBUGGING WITH INTELLITRACE INTRODUCTION TO SOFTWARE TESTING MANUAL TESTING CODED USER INTERFACE TESTING WEB PERFORMANCE AND LOAD TESTING LAB MANAGEMENT Professional Application Lifecycle Management with Visual Studio 2012 offers a thoroughly revised and updated edition of the leading reference book on ALM.
The engineers who create gallon-squeezing tractors use every available method to comply with the ever-tightening fuel-economy standards they must meet. Those solutions may include the use of hybrid powertrains, adopting lightweight materials, cutting aerodynamic drag and minimizing the friction losses of moving parts. To test the working performance of the developed testing setup some tests were conducted on it. The observed data shows consistence rules regarding the effect of inflation pressure and normal load on deflection. However, some general trends were observed similar to observed by Abeel (1976), Fujimoto (1977), young et .al (1978), and Pandey & Tiwari (2009).The results of the conducted study also showed that the developed tyre deflection testing setup and methodology would facilitate the collection of data and provide tools for evaluation and comparison deflection characteristics.
A fully updated guide to making your landing pages profitable Effective Internet marketing requires that you test and optimize your landing pages to maximize exposure and conversion rate. This second edition of a bestselling guide to landing page optimization includes case studies with before-and-after results as well as new information on web site usability. It covers how to prepare all types of content for testing, how to interpret results, recognize the seven common design mistakes, and much more. Included is a gift card for Google AdWords. Features fully updated information and case studies on landing page optimization Shows how to use Google's Website Optimizer tool, what to test and how to prepare your site for testing, the pros and cons of different test strategies, how to interpret results, and common site design mistakes Provides a step-by-step implementation plan and advice on getting support and resources Landing Page Optimization, Second Edition is a comprehensive guide to increasing conversions and improving profits.
A newly expanded and updated edition of the trading classic, Design, Testing, and Optimization of Trading Systems Trading systems expert Robert Pardo is back, and in The Evaluation and Optimization of Trading Strategies, a thoroughly revised and updated edition of his classic text Design, Testing, and Optimization of Trading Systems, he reveals how he has perfected the programming and testing of trading systems using a successful battery of his own time-proven techniques. With this book, Pardo delivers important information to readers, from the design of workable trading strategies to measuring issues like profit and risk. Written in a straightforward and accessible style, this detailed guide presents traders with a way to develop and verify their trading strategy no matter what form they are currently using–stochastics, moving averages, chart patterns, RSI, or breakout methods. Whether a trader is seeking to enhance their profit or just getting started in testing, The Evaluation and Optimization of Trading Strategies offers practical instruction and expert advice on the development, evaluation, and application of winning mechanical trading systems.
Most of the systems nowadays are becoming highly software intensive. Testing such systems requires us to competently decide which testing techniques to use. However, at present, we have very limited practical information of testing techniques. This includes information like what types of defects a particular technique can be expected to find and at what cost; whether technique’s performance depends on program to which it is applied, subject who applies it, the number or the type of faults in the program etc. One way to acquire this type of knowledge is via empirical studies. Empirical studies are crucial in order to evaluate software testing techniques. This book addresses the empirical approach to evaluate software testing techniques. The book is written as a result of knowledge gained by conducting many empirical studies to evaluate software testing techniques. It introduces you to the basics of the empirical studies aimed at evaluating software testing techniques focusing on how to carry out such studies systematically besides presenting the actual empirical studies. It is designed for researchers and students interested in the evaluation of software testing techniques.
A unique resource that combines all aspects of Web testing and makes it completely specific to ASP.NET As Microsoft's key Web technology for creating dynamic, data-driven Web sites and Web applications, ASP.NET is incredibly popular. This is the first book to combine several testing topics and make them specific to ASP.NET. The author duo of Microsoft MVPs covers both the test-driven development approach and the specifics of automated user interface testing; performance, load, and stress testing; accessibility testing; and security testing. This definitive guide walks you through the many testing pitfalls you might experience when developing ASP.NET applications. The authors explain the fundamental concepts of testing and demystify all the correct actions you need to consider and the tools that are available so that you may successfully text your application. Author duo of Microsoft MVPs offer a unique resource: a combination of several testing topics and making them specific to ASP.NET, Microsoft's key Web technology for creating dynamic, data-driven Web sites and applications Guides you through the many testing pitfalls you may experience when developing ASP.NET applications Reviews the fundamental concepts of testing and walks you through the various tools and techniques available and for successfully testing an application Discusses several different types of testing: acceptance, stress, accessibility, and security Examines various testing tools, such as nUnit, VS test suite, WCAT, Selenium, Fiddler, Firebug, and more This one-of-a-kind resource will help you become proficient in successfull application testing.
With the evolution of semiconductor technology and global diversification of the semiconductor business, testing of semiconductor devices to systems for electrostatic discharge (ESD) and electrical overstress (EOS) has increased in importance. ESD Testing: From Components to Systems updates the reader in the new tests, test models, and techniques in the characterization of semiconductor components for ESD, EOS, and latchup. Key features: Provides understanding and knowledge of ESD models and specifications including human body model (HBM), machine model (MM), charged device model (CDM), charged board model (CBM), cable discharge events (CDE), human metal model (HMM), IEC 61000-4-2 and IEC 61000-4-5. Discusses new testing methodologies such as transmission line pulse (TLP), to very fast transmission line pulse (VF-TLP), and future methods of long pulse TLP, to ultra-fast TLP (UF-TLP). Describes both conventional testing and new testing techniques for both chip and system level evaluation. Addresses EOS testing, electromagnetic compatibility (EMC) scanning, to current reconstruction methods. Discusses latchup characterization and testing methodologies for evaluation of semiconductor technology to product testing. ESD Testing: From Components to Systems is part of the authors’ series of books on electrostatic discharge (ESD) protection; this book will be an invaluable reference for the professional semiconductor chip and system-level ESD and EOS test engineer. Semiconductor device and process development, circuit designers, quality, reliability and failure analysis engineers will also find it an essential reference. In addition, its academic treatment will appeal to both senior and graduate students with interests in semiconductor process, device physics, semiconductor testing and experimental work.
This master thesis was carried out within SP Technical Research Institute in Boras, under the instruction of Professor Per Fahlen and Dr. Roger Nordman. It focuses on studying different air-to-air heat pump COP (Coefficient of Performance) field testing methods and standards. Practical measurements with three test methods were carried out in parallel in the laboratory, namely SP Method, Climacheck Method and Calorimeter Method. Results were collected from both long and short term testing with the corresponding outdoor weather conditions. Hence, heat pump performance characteristics can be studied. Furthermore, uncertainty evaluation and limitation analysis of each testing method were made so that further improvement could be suggested for field measurement. While defrosting is a key factor to ensure high efficiency, the dynamic performance within that period is extremely hard to monitor, and it is critical for the long term HSPF (Heating Seasonal Performance Factor) measurement of air-to-air heat pumps.
This book gives a practical introduction to model-based testing, showing how to write models for testing purposes and how to use model-based testing tools to generate test suites. It is aimed at testers and software developers who wish to use model-based testing, rather than at tool-developers or academics.The book focuses on the mainstream practice of functional black-box testing and covers different styles of models, especially transition-based models (UML state machines) and pre/post models (UML/OCL specifications and B notation). The steps of applying model-based testing are demonstrated on examples and case studies from a variety of software domains, including embedded software and information systems. From this book you will learn:* The basic principles and terminology of model-based testing* How model-based testing differs from other testing processes* How model-based testing fits into typical software lifecycles such as agile methods and the Unified Process* The benefits and limitations of model-based testing, its cost effectiveness and how it can reduce time-to-market* A step-by-step process for applying model-based testing* How to write good models for model-based testing* How to use a variety of test selection criteria to control the tests that are generated from your models* How model-based testing can connect to existing automated test execution platforms such as Mercury Test Director, Java JUnit, and proprietary test execution environments* Presents the basic principles and terminology of model-based testing* Shows how model-based testing fits into the software lifecycle, its cost-effectiveness, and how it can reduce time to market* Offers guidance on how to use different kinds of modeling techniques, useful test generation strategies, how to apply model-based testing techniques to real applications using case studies
This book is a conversion of Ph. D. thesis titled, “Investigation of structural and mechanical properties of polymer-silica nanocomposite”. This book will be helpful to the researchers in textile polymer nanocomposite area. It deals with the brief bibliographic revision concerning the most relevant topics related to needs of industrial textiles, composite materials, polymer nanocomposites and different methods to prepare polymer nanocomposite textiles, methods for testing and evaluation. Further it explains about the preparation of polymer silica nano composites like film, filament & fabric and the testing & analysis of these prepared nanocomposites for structural and mechanical performance.