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Book is in NEW condition. 3.46

Book is in Used-VeryGood condition. Pages and cover are clean and intact. Used items may not include supplementary materials such as CDs or access codes. May show signs of minor shelf wear and contain very limited notes and highlighting. 3.46

Software Testing, Second Edition provides practical insight into the world of software testing and quality assurance. Learn how to find problems in any computer program, how to plan an effective test approach and how to tell when software is ready for release. Updated from the previous edition in 2000 to include a chapter that specifically deals with testing software for security bugs, the processes and techniques used throughout the book are timeless. This book is an excellent investment if you want to better understand what your Software Test team does or you want to write better software.

Based on an IEE Vacation School, this text aims to provide an appreciation of contemporary high voltage transmission equipment design and testing techniques. It examines the key components of HV power systems, together with HV transmission and distribution, commercial considerations and testing, measurement and accreditation.

New Book. Shipped from UK. Established seller since 2000.

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Acceptable/Fair condition. Book is worn, but the pages are complete, and the text is legible. Has wear to binding and pages, may be ex-library. 7.72

Buy with confidence! Book is in new, never-used condition 1.32

Four-skills American English course with a communicative methodology, engaging texts, and a strong pronunciation syllabus - designed to get students speaking. With texts and topics that make learners want to speak, American English File is the course that gets students talking. It gives you full skills coverage with a clear focus on pronunciation, plus wide-ranging support and resources too. Resources include Test Generator CD-ROMs, DVDs, Multi-ROMs, and websites. The highly popular teacher's site has extra lesson ideas and resources for you to download.

Four-skills American English course with a communicative methodology, engaging texts, and a strong pronunciation syllabus - designed to get students speaking. With texts and topics that make learners want to speak, American English File is the course that gets students talking. It gives you full skills coverage with a clear focus on pronunciation, plus wide-ranging support and resources too. Resources include Test Generator CD-ROMs, DVDs, Multi-ROMs, and websites. The highly popular teacher's site has extra lesson ideas and resources for you to download.

Brand New. Soft Cover International Edition. Different ISBN and Cover Image. Priced lower than the standard editions which is usually intended to make them more affordable for students abroad. The core content of the book is generally the same as the standard edition. The country selling restrictions may be printed on the book but is no problem for the self-use. This Item maybe shipped from US or any other country as we have multiple locations worldwide.

Four-skills American English course with a communicative methodology, engaging texts, and a strong pronunciation syllabus - designed to get students speaking.With texts and topics that make learners want to speak, American English File is the course that gets students talking.It gives you full skills coverage with a clear focus on pronunciation, plus wide-ranging support and resources too.Resources include Test Generator CD-ROMs, DVDs, Multi-ROMs, and websites.The highly popular teacher's site has extra lesson ideas and resources for you to download.

Like New condition. A near perfect copy that may have very minor cosmetic defects.

After meticulous design and rigorous testing, the Sigma 16mm, 30mm, and 56mm f/1.4 DC DN Contemporary 3-Lens Kit emerges as an unparalleled trio for Sony E-mount APS-C cameras, offering photographers and videographers a versatile range of focal lengths with exceptional brightness and artistic potential.The Sigma 16mm f/1.4 DC DN Contemporary lens is a trailblazer in its class, being the first APS-C format interchangeable lens to provide a 24mm equivalent focal length with a wide f/1.4 aperture. This large-diameter wide-angle lens is a dream come true for mirrorless camera enthusiasts seeking superior performance in low light and the ability to create stunning bokeh. Its stepping motor ensures smooth, silent autofocus, perfect for capturing video without noise disruption. The lens's compact design doesn't compromise on optical quality, offering sharp, clear images even when shooting handheld or with the camera on a stable surface. The robust construction includes a dust and splash-proof mount and a high-precision, rugged brass bayonet mount, ensuring durability and reliability in various shooting environments. Additionally, Sigma's Super Multi-Layer Coating combats flare and ghosting, while the 9-blade rounded diaphragm contributes to a pleasing out-of-focus quality in your images.The Sigma 30mm f/1.4 DC DN Contemporary lens is a compact marvel, delivering outstanding optical performance at an accessible price point. With its f/1.4 aperture, this lens captures beautifully sharp images with creamy bokeh that rivals the Art line series. The design incorporates an aspherical element and a double-sided aspherical element, ensuring high-resolution results across the entire frame. The lens's stepping motor provides fast and smooth autofocus, making it ideal for both still photography and video recording. It's a versatile choice for a wide range of photographic situations, from portraits to landscapes. The lens is also compatible with Sigma's Optimization Pro software and USB Dock for firmware updates, ensuring it stays current with technological advancements.Completing the trio, the Sigma 56mm f/1.4 DC DN Contemporary lens is the smallest mid-telephoto lens in its class, yet it delivers the impressive bokeh and luminous quality expected from an f/1.4 aperture. This lens maintains the Contemporary line's ethos of compactness without sacrificing image quality. Its optical design is optimized for video autofocus performance, with a stepping motor that provides smooth and quiet operation. The lens is also fully compatible with Sony E-mount cameras' Fast Hybrid AF for precise tracking, even when using face recognition or eye AF functions. Like its siblings, it features a high-precision, rugged brass bayonet mount and a dust and splash-proof construction. The 9-blade rounded diaphragm ensures out-of-focus areas are rendered with a soft, attractive blur, enhancing the overall visual appeal of your photos.Together, these three Sigma lenses form a...

Are you a professional photographer seeking to elevate your sports, wildlife, or nature photography? The Sony FE 400mm F2.8 GM OSS Lens for Sony E-mount cameras is the answer. This super-telephoto prime lens, a result of Sony's extensive research and rigorous testing, delivers unparalleled image quality, extraordinary focusing speed, and precision. Weighing just over 6 lbs., this lens is the lightest in its class, offering unmatched portability and handheld maneuverability. This is achieved through an innovative optical design featuring three fluorite elements and a reduced number of elements at the front of the barrel. The use of durable magnesium alloy components further contributes to its lightweight design. This lens is not front-heavy, reducing the moment of inertia that resists rotation by up to 50% compared to the SAL500F40G. This ensures quicker, more precise panning when shooting handheld or on a monopod, making it ideal for capturing dynamic, fast-moving subjects like athletes or wildlife.The FE 400mm F2.8 GM OSS lens is equipped with two newly developed high-speed XD (extreme dynamic) Linear Motors that drive the lens's focus group. This, combined with specially developed motion algorithms, results in up to a 5x improvement in moving-subject tracking performance. The result is quick, accurate, and quiet autofocus performance.As a member of Sony's flagship G Master series lenses, this lens offers an incredible level of image quality and detail, with outstanding contrast and resolution maintained all the way to the corners of the image. Three fluorite elements help to minimize chromatic aberration and suppress color bleeding. Sony's original Nano AR coating is applied to suppress unwanted reflections, glare, or ghosting.The lens features an 11-blade circular aperture mechanism that produces extremely natural and beautiful background defocus or 'bokeh'. It is compatible with Sony's 1.4x and 2.0x E-mount tele-converters, offering outstanding imaging performance at extended focal lengths while maintaining fast, precise AF performance.Built to withstand the harsh conditions of sporting events and wildlife photography, the FE 400mm F2.8 GM OSS is constructed with a durable magnesium alloy and a strong, lightweight carbon fiber hood. It is dust and moisture resistant, and its front element is coated with fluorine to resist dirt and fingerprints. The lens offers a number of hard controls, including customizable focus-hold buttons in four different locations on the lens barrel, a 'Full-Time DMF' switch for immediate manual focus engagement, and a focus ring featuring Linear Response MF for fine, responsive manual focus. It also includes built-in optical stabilization for dynamic action and three different 'Mode' settings, including a new Mode 3 setting with an advanced algorithm for easier framing when following moving subjects.The FE 400mm F2.8 GM OSS includes a drop-in filter slot that accepts Dia. 40.5mm ND and other filter types, as well as...

Are you a professional photographer seeking to elevate your sports, wildlife, or nature photography? The Sony FE 400mm F2.8 GM OSS Lens for Sony E-mount cameras is the answer. This super-telephoto prime lens, a result of Sony's extensive research and rigorous testing, delivers unparalleled image quality, extraordinary focusing speed, and precision. Weighing just over 6 lbs., this lens is the lightest in its class, offering unmatched portability and handheld maneuverability. This is achieved through an innovative optical design featuring three fluorite elements and a reduced number of elements at the front of the barrel. The use of durable magnesium alloy components further contributes to its lightweight design. This lens is not front-heavy, reducing the moment of inertia that resists rotation by up to 50% compared to the SAL500F40G. This ensures quicker, more precise panning when shooting handheld or on a monopod, making it ideal for capturing dynamic, fast-moving subjects like athletes or wildlife.The FE 400mm F2.8 GM OSS lens is equipped with two newly developed high-speed XD (extreme dynamic) Linear Motors that drive the lens's focus group. This, combined with specially developed motion algorithms, results in up to a 5x improvement in moving-subject tracking performance. The result is quick, accurate, and quiet autofocus performance.As a member of Sony's flagship G Master series lenses, this lens offers an incredible level of image quality and detail, with outstanding contrast and resolution maintained all the way to the corners of the image. Three fluorite elements help to minimize chromatic aberration and suppress color bleeding. Sony's original Nano AR coating is applied to suppress unwanted reflections, glare, or ghosting.The lens features an 11-blade circular aperture mechanism that produces extremely natural and beautiful background defocus or 'bokeh'. It is compatible with Sony's 1.4x and 2.0x E-mount tele-converters, offering outstanding imaging performance at extended focal lengths while maintaining fast, precise AF performance.Built to withstand the harsh conditions of sporting events and wildlife photography, the FE 400mm F2.8 GM OSS is constructed with a durable magnesium alloy and a strong, lightweight carbon fiber hood. It is dust and moisture resistant, and its front element is coated with fluorine to resist dirt and fingerprints. The lens offers a number of hard controls, including customizable focus-hold buttons in four different locations on the lens barrel, a 'Full-Time DMF' switch for immediate manual focus engagement, and a focus ring featuring Linear Response MF for fine, responsive manual focus. It also includes built-in optical stabilization for dynamic action and three different 'Mode' settings, including a new Mode 3 setting with an advanced algorithm for easier framing when following moving subjects.The FE 400mm F2.8 GM OSS includes a drop-in filter slot that accepts Dia. 40.5mm ND and other filter types, as well as...

After rigorous testing and refinement, the DN100 V2 1-Channel Active Direct Box with Extended Dynamic Range has emerged as a top choice for both au...

Cast from 8620 carbon steel to a compact, eye-pleasing shape, s159 Wedges�are the result of extensive testing alongside PING's tour professionals. The wedges provide a soft yet responsive feel at impact thanks to an elastomer insert behind the face, while a more square leading edge improves contact on full swings. As always, control is integral to strong wedge play, and PING's precision-milled wheel-cut grooves deliver the elevated spin rates required to execute even the most difficult short game shots. Additionally, the grooves are loft-dependent, optimizing performance based on the club's intended purpose. The lower lofts' narrower 20-degree sidewall offers greater accuracy on full shots when compression occurs. Conversely, the higher-lofts more tightly spaced, wider MicroMax grooves impart superior spin rates around the green on shorter chips and pitches. Combined with the friction-enhancing face blast, all lofts supply the launch and spin characteristics to play score-lowering shots from any distance. With the addition of two grinds and new loft offerings, the s159 is PING's most versatile line to date. H or Half-Moon Grind: Advantageous for players with steeper angles of attack who prioritize versatility and like to manipulate the face. B Grind: Low-bounce design sits close to the turf and is ideal for a shallow angle of attack, firm conditions, and a neutral face delivery.� T Grind: The most versatile grind option lends itself to face manipulation and shot-making precision around the green. Ideal for medium to firm conditions. W Grind: Offering maximum forgiveness through the turf, the W suits a steep angle of attack and those who utilize a lot of forward press. S Grind: Designed with ample bounce in the mid-section to play full shots and heel/trail edge relief for greenside versatility, the S fits a wide variety of conditions and techniques. E or Eye2 Grind: The ultimate bunker club carrying on a 40-year tradition of helping golfers get up and down from the

Under the category of forensic testing kits, the NIK Test E Marijuana, Hashish, and Hash Oil 10-Pack stands as a reliable solution for the presumptive identification of these substances. This kit utilizes the Duquenois-Levine Reagent, a trusted method in the field of substance identification. Designed for standalone use, this kit is engineered to detect the presence of Marijuana, Hashish, and "Hash Oil" with precision. The test results are visually indicated by a series of color changes. Initially, there is no color change after breaking the first ampoule. Upon breaking the second ampoule, the solution turns a dark blue or violet. Finally, a grey upper layer over a violet layer appears upon breaking the third ampoule. This NIK Test E kit is an essential tool for law enforcement, forensic professionals, and substance control departments, offering a straightforward and efficient method to presumptively identify Marijuana, Hashish, and Hash Oil. Each pack contains 10 individual tests, ensuring multiple uses for comprehensive testing needs. Please note that this product is intended for professional use and should be handled with care. Always follow the instructions provided to ensure accurate results.

After extensive field-testing, the E-Image EI-7103H Fluid Video Head emerges as a top-tier choice for professional videographers and cinematographers seeking high-quality equipment at a cost-effective price. This heavy-duty 100mm fluid video head is meticulously engineered to provide unwavering reliability, robust construction, and a comprehensive set of features that meet the demands of professional performance.The E-Image EI-7103H stands out in its class with a 100mm ball head that effortlessly supports large capacity payloads. It boasts a superior counterbalance range that outperforms other models in its price bracket, making it an ideal choice for those who require a high degree of versatility and control.Designed to seamlessly integrate with a 100mm bowl tripod system, the EI-7103H offers a 0-3 stepped Tilt drag system and a 0-8 counterbalance system. These features provide maximum adjustability, accommodating a wide range of payload configurations up to 33 pounds. This ensures optimal performance regardless of the equipment weight or setup.Further enhancing its versatility, the EI-7103H features a professional fluid pan with stepped settings of 0-3. This allows for precise adjustments to meet every shooting contingency, from fast-paced action shots to slow, steady pans.To ensure accurate shooting alignment, the E-Image EI-7103H Fluid Video Head incorporates a bubble level. This feature guarantees precise head alignment, contributing to the production of high-quality, professional-grade video content. With the E-Image EI-7103H, you can confidently capture your vision with precision and ease.