Речной бобр (Castor fiber L.) как ключевой вид экосистемы малой реки (на примере Приокско-Террасного государственного биосферного природного заповедника)
Автор: Коллектив авторов
Год издания:
Коллективная монография посвящена средообразующей деятельности речного бобра – ключевого вида малых рек Приокско-Террасного заповедника. Изучение динамики численности и распределения бобров в водоемах заповедника проводится более 60 лет, с первых дней реинтродукции. Рассмотрены общие природные характеристики заповедника, включая климат, рельеф, гидрологическую сеть, характеристику флоры и фауны. Представлены особенности обитания речного бобра, включая детальное описание многолетней динамики численности с характеристикой изменения размещения поселений, строительной деятельности, особенностей кормодобывания, влияния хищников и вербальное описание изменения местообитаний на территории заповедника. Особое внимание уделено математическим моделям, предназначенным для выявления основных тенденций изменения численности и построения прогноза популяционной динамики с учетом особенностей экологии вида. Охарактеризованы различные аспекты влияния бобров на водные и околоводные экосистемы малой реки Таденки, даны количественные и качественные характеристики влияния деятельности бобра на зоопланктон, макрозообентос, размножение амфибий, динамику черноольшаника и высшую водную растительность в местообитаниях речного бобра. Обсуждаются потенциальные возможности применения космических снимков среднего (Landsat 7) и сверхвысокого (IKONOS, GeoEye-1) пространственного разрешения для картирования объектов жизнедеятельности бобров. Данная монография будет интересна и полезна широкому кругу ученых – зоологам, гидробиологам и ботаникам, специалистам, работающим на стыке геоматики и экологии. Знание средообразующей деятельности бобра важно для специалистов, работающих в области сохранения биологического разнообразия, заповедного дела и рыбного хозяйства, а также для студентов и аспирантов.
Fiber Optics Installer and Technician Guide
Автор: Bill Woodward
Год издания:
For years, fiber optics was the future. Now, it's the present, and the time has come to act if you want to make a career in this fast-growing field. The Fiber Optics Installer and Technician Guide is a comprehensive resource designed to prepare you for the two leading fiber optics certifications, Fiber Optics Installer (FOI) and Fiber Optics Technician (FOT). This book's practical, objective-focused coverage includes: The history of fiber optics Principles of fiber optic transmission Optical fiber characteristics, construction, and theory Safety considerations Cables, connectors, and splicing Fiber optic light sources and transmitters Fiber optic detectors and receivers Passive components and multiplexers Fiber optic links Testing equipment Techniques for testing links and cables Troubleshooting and restoration techniques Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
Carbon Nanotube-Polymer Composites. Manufacture, Properties, and Applications
Автор: Brian Grady P.
Год издания:
The accessible compendium of polymers in carbon nanotubes (CNTs) Carbon nanotubes (CNTs)—extremely thin tubes only a few nanometers in diameter but able to attain lengths thousands of times greater—are prime candidates for use in the development of polymer composite materials. Bringing together thousands of disparate research works, Carbon Nanotube-Polymer Composites: Manufacture, Properties, and Applications covers CNT-polymers from synthesis to potential applications, presenting the basic science and engineering of this dynamic and complex area in an accessible, readable way. Designed to be of use to polymer scientists, engineers, chemists, physicists, and materials scientists, the book covers carbon nanotube fundamentals to help polymer experts understand CNTs, and polymer physics to help those in the CNT field, making it an invaluable resource for anyone working with CNT-polymer composites. Detailed chapters describe the mechanical, rheological, electrical, and thermal properties of carbon nanotube-polymer composites. Including a glossary that defines key terms, Carbon Nanotube-Polymer Composites is essential reading for anyone looking to gain a fundamental understanding of CNTs and polymers, as well as potential and current applications, including electronics (shielding and transparent electrodes), flame retardants, and electromechanics (sensors and actuators), and their challenges.
Carbon Nanotube Reinforced Composites. Metal and Ceramic Matrices
Автор: Sie Tjong Chin
Год издания:
Providing a broad insight into the potential applications of carbon nanotubes with metals and ceramic materials as a matrix, this book focuses on the preparation and the microstructural, physical, and mechanical characterizations of such novel nanocomposites. It features information on current synthesis and structure-property-relationships of metals and ceramics reinforced with CNT, organizing the vast array of surveys scattered throughout the literature in a single monograph. With its laboratory protocols and data tables this is invaluable reading for research workers and academics, as well as for applied scientists and industry personnel.
Self-Healing Composites. Shape Memory Polymer Based Structures
Автор: Guoqiang Li
Год издания:
In this book, the self-healing of composite structures with shape memory polymer as either matrix or embedded suture is systematically discussed. Self-healing has been well known in biological systems for many years: a typical example is the self-healing of human skin. Whilst a minor wound can be self-closed by blood clotting, a deep and wide cut needs external help by suturing. Inspired by this observation, this book proposes a two-step close-then-heal (CTH) scheme for healing wide-opened cracks in composite structures–by constrained shape recovery first, followed by molecular healing. It is demonstrated that the CTH scheme can heal wide-opened structural cracks repeatedly, efficiently, timely, and molecularly. It is believed that self-healing represents the next-generation technology and will become an engineering reality in the near future. The book consists of both fundamental background and practical skills for implementing the CTH scheme, with additional focus on understanding strain memory versus stress memory and healing efficiency evaluation under various fracture modes. Potential applications to civil engineering structures, including sealant for bridge decks and concrete pavements, and rutting resistant asphalt pavements, are also explored. This book will help readers to understand this emerging field, and to establish a framework for new innovation in this direction. Key features: explores potential applications of shape memory polymers in civil engineering structures, which is believed to be unique within the literature balanced testing and mathematical modeling, useful for both academic researchers and practitioners the self-healing scheme is based on physical change of polymers and is written in an easy to understand style for engineering professionals without a strong background in chemistry