الصفحة 6
الصفحة 6
Evolution, Monitoring and Predicting Models of Rockburst : Precursor Information for Rock Failure
Focuses on investigating predicting precursor information and key points of rockburst in mining engineering through laboratory experiment, theoretical analysis, numerical simulation and case studies. Understanding the evolution patterns for the microstructure instability of rock is a prerequisite for rockburst prediction. The book provides a guide for readers seeking to understand the evolution patterns for the microstrucure of rock failure, the predicting key point of rock failure and the rockburst predicting model. It will be an essential reference to understand mechanism of rockburst and sheds new light on dynamic disasters prediction. Chapters are carefully developed to cover (1) The evolution patterns for the microstructure instability of rock; (2) Rockburst hazard monitoring and predicting criterion and predicting models. The book addresses the issue with a holistic and systematic approach that investigates the occurrence mechanism of rockburst based on the evolution patterns for the microstructure of rock failure and establishes the predicting model of rockburst.
European water law and hydropolitics : An inquiry into the resilience of transboundary water governance in the European Union
provides the first comprehensive assessment of the various issues faced by countries in the European Union, where progressing climate change and urbanization pose significant cooperative challenges in a large number of river basins. Conducting a thorough analysis of the intricate web of EU water governance, it reveals that the hydropolitical stability of the European Union is already at risk. Further, given the structural nature of the shortcomings in EU water policy—e.g. the rigidity of the EU’s founding treaties or the institutional complacency of the European Commission— argues that these risks are likely to turn into sources of prolonged conflict, unless EU decision-making bodies take steps to address the new hydrological realities early on.
Essentials of mechanical stress analysis
Essentials of Mechanical Stress Analysis, updated for the second edition, covers stress analysis from an interdisciplinary perspective. Discussing techniques and theories essential to analysing structures, the book covers both analytical and numerical approaches. Also covering beams, plates, columns and elastic instability, the book discusses fatigue, life cycle, energy methods and MathCAD sample code.
Environmental Security and Sustainable Land Use - with special reference to Central Asia
This book presents important aspects of environmental security and sustainable land use in general and in particular for Central Asia, i.e. the environmental consequences of climate change; sustainable land use and regional development; sustainable development in mountain and steppe regions; beyond borders: Transboundary Biosphere Reserve "Altai" as an approach for regional development; landscape planning as an integrative tool for sustainable development; challenges and threats for environmental stability in Central Asia. A final recommendation in the area of sustainable development and land use as well as the proceeding efforts towards the establishment of the Transboundary Biosphere Reserve "Altai" and the implementation of landscape planning were set in the book as some of the main results of the meeting.
Environmental Geotechnics
A guide to aid engineers in applying geotechnical principles, processes and techniques in a way that will not only reduce their environmental impact but should benefit the environment. The major construction-environment interface is geotechnical in nature. For engineers to be able to foresee environmental problems and modify construction projects, or derive novel approaches, to prevent negative impacts from their works, they need a thorough knowledge of their subject and a constant awareness of the pollution-output' of any construction operation.
Environment Learning for Indoor Mobile Robots : A Stochastic State Estimation Approach to Simultaneous Localization and Map Building
This monograph covers theoretical aspects of simultaneous localization and map building for mobile robots, such as estimation stability, nonlinear models for the propagation of uncertainties, temporal landmark compatibility, as well as issues pertaining the coupling of control and SLAM. One of the most relevant topics covered in this monograph is the theoretical formalism of partial observability in SLAM. The authors show that the typical approach to SLAM using a Kalman filter results in marginal filter stability, making the final reconstruction estimates dependant on the initial vehicle estimates. However, by anchoring the map to a fixed landmark in the scene, they are able to attain full observability in SLAM, with reduced covariance estimates.
Engineering Optics
Engineering Optics is a book for students who want to apply their knowledge of optics to engineering problems, as well as for engineering students who want to acquire the basic principles of optics. It covers such important topics as optical signal processing, holography, tomography, holographic radars, fiber optical communication, electro- and acousto-optic devices, and integrated optics (including optical bistability). As a basis for understanding these topics, the first few chapters give easy-to-follow explanations of diffraction theory, Fourier transforms, and geometrical optics. Practical examples, such as the video disk, the Fresnel zone plate, and many more, appear throughout the text, together with numerous solved exercises. There is an entirely new section in this updated edition on 3-D imaging.
Engineering Geology for Underground Rocks
This book clearly and systematically explains underground engineering geology principles, methods, theories and case studies, depicts engineering problems in underground rock engineering and how to study and solve them. It specially emphasizes mechanical and hydraulic couplings in rock engineering for wellbore stability, mining near aquifers and other underground structures where inflow is a problem. Using the methods and models given in this book, the reader is able to analyse underground geological engineering problems and also for the design of underground structures.
Emerging Threats to Energy Security and Stability; Proceedings of the NATO Advanced Research Workshop on Emerging Threats to Energy Security and Stability, London, United Kingdom, from 23 to 25 January 2004
In particular, it sought to assess emerging threats to energy security and stability and discuss new security strategies to protect global energy supplies from regional instability and terrorism. The format involved a wide-ranging international group of poli- formers and advisers from NATO, Partner and other countries, in a unique forum for intensive expert discussion. Background The international community is increasingly conscious of the need to develop new energy security strategies in order to protect global energy supplies from regional instability and terrorism. Energy security is a vital element in international stability. However, a variety of energy-related economic, technical, and military/political factors pose serious challenges to the international community’s pursuit of energy security and stability: The global economy is expected to continue to be largely dependent on oil and gas for the next twenty to thirty years.
Emergent Properties in Natural and Artificial Dynamical Systems
An important part of the science of complexity is the study of emergent properties arising through dynamical processes in various types of natural and artificial systems. This is the aim of this book, which is the outcome of a discussion meeting within the first European conference on complex systems. It presents multidisciplinary approaches for getting representations of complex systems and using different methods to extract emergent structures. This carefully edited book studies emergent features such as self organization, synchronization, opening on stability and robustness properties. Invariant techniques are presented which can express global emergent properties in dynamical and in temporal evolution systems. This book demonstrates how artificial systems such as a distributed platform can be used for simulation used to search emergent placement during simulation execution.
Electrostatic Accelerators : Fundamentals and Applications
Electrostatic accelerators are an important and widespread subgroup within the broad spectrum of modern, large particle acceleration devices. They are specifically designed for applications that require high-quality ion beams in terms of energy stability and emittance at comparatively low energies (a few MeV). Their ability to accelerate virtually any kind of ion over a continuously tunable range of energies make them a highly versatile tool for investigations in many research fields including, but not limited to, atomic and nuclear spectroscopy, heavy ion reactions, accelerator mass spectroscopy as well as ion-beam analysis and modification. The book is divided into three parts. The first part concisely introduces the field of accelerator technology and techniques that emphasize their major modern applications. The second part treats the electrostatic accelerator per se: its construction and operational principles as well as its maintenance. The third part covers all relevant applications in which electrostatic accelerators are the preferred tool for accelerator-based investigations. Since some topics are common to all types of accelerators, Electrostatic Accelerators will also be of value those more familiar with other types of accelerators.
Elasticity of Transversely Isotropic Materials
This book aims to provide a comprehensive introduction to the theory and applications of the mechanics of transversely isotropic elastic materials. There are many reasons why it should be written. First, the theory of transversely isotropic elastic materials is an important branch of applied mathematics and engineering science; but because of the difficulties caused by anisotropy, the mathematical treatments and descriptions of individual problems have been scattered throughout the technical literature. This often hinders further development and applications. Hence, a text that can present the theory and solution methodology uniformly is necessary.
Elastic Multibody Dynamics : A Direct Ritz Approach
This textbook is an introduction to and exploration of a number of core topics in the field of applied mechanics: On the basis of Lagrange's Principle, a Central Equation of Dynamics is presented which yields a unified view on existing methods. From these, the Projection Equation is selected for the derivation of the motion equations of holonomic and of non-holonomic systems. The method is applied to rigid multibody systems where the rigid body is defined such that, by relaxation of the rigidity constraints, one can directly proceed to elastic bodies. A decomposition into subsystems leads to a minimal representation and to a recursive representation, respectively, of the equations of motion.
Effect of antioxidants in plant extracts and free radicals on blood sample
Antioxidants are substances that inhibit and regulate the formation of free radicals, and prevent or slow down the damage to cells caused by free radicals. There is a balance between antioxidants and free radicals throughout the body, and free radicals become dangerous when the balance is disturbed Free radicals play a key role in many physiological decisions in cells. Since free radicals are toxic to cellular components, it is known that they cause DNA damage, contribute to DNA instability and mutation and thus favor carcinogenesis.Low levels of free radicals and steady state levels of antioxidant enzymes are responsible for the fine tuning of redox status inside cells. A change in redox state is a way to modify the physiological status of the cell.Many healthful foods contain antioxidants. If a person consumes some or all of these foods regularly, they may increase their antioxidant levels, potentially helping them prevent the damage that doctors associate with oxidative stress.
Ecosystem Organization of a Complex Landscape : Long-Term Research in the Bornhöved Lake District, Germany
Presents the major findings of a 12-year ecological study of the Bornhöved Lake District, situated some 30 km south of Kiel. Historically speaking, the present research scheme, like comparable long-term ecosystem studies at Göttingen, Bayreuth, München, and Berchtesgaden, has been conceived as the core of a comprehensive ecological surveillance system for Germany (Ellenberg et al. 1978). Comprising three interrelated components, namely an ecological monitoring network, comparative ecosystem research, and an environmental specimen bank, this system is intended to promote both ecological science and planning and policy. In this connection the geo- and bioscientifically based ecosystem research aims at understanding the structure and functions of systems, the natural equilibrium and stress tolerance of singular components and the entire system against changes and disturbances from within and from outside, and the relationships between diversity, productivity, and stability. Thus, ecosystem research forms the indispensable basis for the rational analysis of the comprehensive data sets made available by ecological monitoring networks and for the adequate selection of plant, animal, and soil specimens for environmental specimen banking purposes.
Economic dynamics and information
This book analyzes the existence of equilibria in economies having a measured space of agents and a continuum of agents and commodities. Excessive homogeneity with respect to agent productivity leads to instability and non-uniqueness of a given stationary state and the indeterminacy of the corresponding stationary state equilibrium. Sufficient heterogeneity leads to global saddle-path stability, uniqueness of a given stationary state and the global uniqueness of the corresponding equilibrium.
Eco-and ground bio-engineering : The use of vegetation to improve slope stability ; Proceedings of the 1st International Conference on Eco-Engineering 13-17 September 2004
In an era where climate change, natural catastrophes and land degradation are major issues, the conservation of soil and vegetation in mountainous or sloping regions has become an international priority. How to avoid substrate mass movement through landslides and erosion using sustainable and ecologically sound techniques is rapidly becoming a scientific domain where knowledge from many different fields is required. These proceedings bring together papers from geotechnical and civil engineers, biologists, ecologists and foresters, who discuss current problems in slope stability research, and how to address those problems using ground bio- and eco-engineering techniques.
Earth Structures : In Transport, Water and Environmental Engineering
This book describes the principles of working with soil as a construction material, including two basic ways of treating it: geosynthetics and stabilization. The book discusses the design logic and ways to control Earth Structures, which differ significantly from other construction materials. Building with Earth involves greater uncertainty and risk, which means that there is a need for better design detailing and improvement in the quality of financial calculations. The general part of the book gives a detailed description of the principles of limit states according to Eurocode 7, after which geotechnical design is also described. Subsequent chapters concentrate on earth structures for transport, water, and environmental projects. The chapter on Earth Structures in transport engineering presents detailed coverage of limit states of stability and deformation. Earth Structures in water engineering prioritizes the limit state of internal erosion. Earth Structures in environmental engineering describes new designs, in which part of the structure is created from non-standard materials which are usually susceptible to internal collapse, double porosity, unsaturation, etc. It also focuses on protecting the surrounding environment from contamination.
Dynamics of soils and their engineering applications
Offers systematic dynamic analysis of soils and their engineering applications, including machine foundations, and aims to develop a clear understanding of the subject. It comprises sixteen chapters. Chapter 1 introduces the reader to the various problems in soil dynamics. In Chapter 2, concepts of theory of vibrations are discussed along with their applications in designing Vibration Absorbers and Pickups. Wave propagation in elastic medium including wave refraction in layered medium is covered in Chapter 3. Chapter 4 deals with the procedure of determining dynamic properties of soils using various laboratory and field tests. Dynamic earth pressures in retaining walls and dynamic bearing capacity of footings are dealt with in Chapters 5 and 6 respectively
Dynamics of Fibre Formation and Processing : Modelling and Application in Fibre and Textile Industry
The book deals with the modelling of steady state and non-steady state basic processes of fibre formation and fibre processing. Focal points are melt spinning processes (polymers and glass, drawing, spunbonded nonwoven), spun yarn spinning processes (drafting, carding) and the description of the dynamics in different process steps during the fibre processing (fibre transport, fibre heating and cooling, false twist texturing). A special chapter deals with dynamics of tensile force (measuring and evaluation possibilities) and its importance for the process stability. All presented examples are based on industrial practice and give the reader a direct imagination of the discussed problems. The results are explained in a userfriendly way and give the practitioner the possibility to optimize his or her own processing.
