الصفحة 1
الصفحة 1
Numerical solution of Variational Inequalities by Adaptive Finite Elements
Franz-Theo Suttmeier describes a general approach to a posteriori error estimation and adaptive mesh design for finite element models where the solution is subjected to inequality constraints. This is an extension to variational inequalities of the so-called Dual-Weighted-Residual method (DWR method) which is based on a variational formulation of the problem and uses global duality arguments for deriving weighted a posteriori error estimates with respect to arbitrary functionals of the error. In these estimates local residuals of the computed solution are multiplied by sensitivity factors which are obtained from a numerically computed dual solution. The resulting local error indicators are used in a feed-back process for generating economical meshes which are tailored according to the particular goal of the computation.
Nuclear Condensed Matter Physics with Synchrotron : Basic Principles, Methodology and Applications
This book provides a comprehensive introduction to the growing field of nuclear condensed matter physics with synchrotron radiation, a technique which finds numerous applications in fields such as magnetism, physics of surfaces and interfaces, lattice dynamics and more. Due to the enormous brilliance of modern synchrotron radiation sources, the method is particularly suited for the investigation of low-dimensional structures such as thin films and nanoparticles. The use of isotopic probe layers, for example, allows one to determine magnetic and vibrational properties with very high spatial resolution; focusing techniques and x-ray interference effects lead to a very high sensitivity for smallest amounts of material. The book is written on an introductory level with many examples employed to illustrate the special experimental possibilities.
Nonlinear Optimization with Engineering Applications
This textbook examines a broad range of problems in science and engineering, describing key numerical methods applied to real life. The case studies presented are in such areas as data fitting, vehicle route planning and optimal control, scheduling and resource allocation, sensitivity calculations and worst-case analysis.
Nonlinear Dielectric Phenomena in Complex Liquids
Complex liquids constitute a basic element in modern materials science; their significant features include self-assembly, mesoscale structures, complex dynamics, unusual phases and enormous sensitivity to perturbations. Understanding their nature and properties are a great challenge to modern materials science that demands novel approaches. This book focuses on nonlinear dielectric phenomena, particularly on nonlinear dielectric spectroscopy (NDS), which may be considered a possible successor to broadband dielectric spectroscopy (BDS). NDS phenomena directly coupled to mesoscale heterogeneity fluctuations, so information obtained in this way is basically complementary to BDS tests. The book also discusses the application of NDS in a set of complex liquid systems: glassy liquids, liquid crystals, liquids with critical point phenomena, and bio-relevant liquids. The complementary application of NDS and BDS may allow the discovery of universal patterns for the whole category of complex liquids. Written by specialists in the field of nonlinear dielectric studies, theoreticians and experimentalists, ranging from solid state physics to biophysics, the book is organized so that it can serve as a basic textbook for a non-experienced reader.
Musculoskeletal Sonography : Technique, Anatomy, Semeiotics and Pathological Findings in Rheumatic Diseases
Ultrasonography is effective in the evaluation of joint involvement in patients with rheumatic diseases, and may be useful in diagnosis and in monitoring the synovial inflammation by power Doppler technique, with great sensitivity in comparison with clinical examination. The high-resolution US combined with power Doppler technique is also able to detect the peripheral entheseal abnormality, the bone erosion and the tendon involvement. The purpose of this book is to elucidate the examination technique, the sonographic changes in musculoskeletal rheumatic involvement and the ultrasound assessment of joint rheumatic diseases. The atlas is enriched with several figures, in which the US picture is compared with that of conventional radiography, CT and MRI.
Monographs in contact allergy ; Vol.4 : Systemic drugs
Presents : Identification section; Occupational allergic contact dermatitis; and Cutaneous adverse drug reactions from systemic drugs caused by type IV (delayed-type) hypersensitivity, as shown by positive patch tests (e.g. maculopapular eruption, acute generalized exanthematous pustulosis [AGEP], symmetrical drug-related intertriginous and flexural exanthema [SDRIFE], fixed drug eruption, drug reaction with eosinophilia and systemic symptoms [DRESS], and photosensitivity). Separate chapters present an overview of the spectrum of allergic cutaneous drug reactions, diagnostic tests, immediate contact reactions (contact urticaria), and systemic drugs that have acquired delayed-type hypersensitivity only by cross-reactivity.
Models for Discrete Longitudinal Data
This book provides a comprehensive treatment on modeling approaches for non-Gaussian repeated measures, possibly subject to incompleteness. The authors consider a variety of extensions, such as models for multivariate longitudinal measurements, random-effects models with serial correlation, and mixed models with non-Gaussian random effects. They sketch the general principles for how to deal with the commonly encountered issue of incomplete longitudinal data. The authors critique frequently used methods and propose flexible and broadly valid methods instead, and conclude with key concepts of sensitivity analysis. The book shows how the different approaches can be implemented within the SAS software package. The text is organized so the reader can skip the software-oriented chapters and sections without breaking the logical flow.
Modelling the dispersion of radionuclides in the marine environment : An introduction
This book is a practical guide to the subject of numerical modelling of radioactivity dispersion in the marine environment. Thus, the techniques and numerical procedures required are explained in detail, with the aim of enabling the reader to build a real mathematical model. The book covers basic concepts and techniques, such as solving the advection-diffusion equation in a simple 1D form, as well as the most recent developments (full 3D models for non-conservative radionuclides including chemical reactions and speciation). A chapter is dedicated to the basic hydrodynamic modelling that is always required to simulate the dispersion of tracers in the sea; Eulerian and Lagrangian modelling techniques are also described. A chapter describes sensitivity and uncertainty analysis, the final stage in modelling works. A review on some published radionuclide dispersion models is also included.
Modelling community structure in freshwater ecosystems
"The book presents approaches and methodologies for predicting the structure and diversity of key aquatic communities (namely diatoms, benthic macroinvertebrates and fish), under natural conditions and under man-made disturbance. Such an approach will make it possible to: 1) set up procedures for robust and sensitive ecosystem evaluation, based on the prediction of the excepted community structure; 2) model community structure in disturbed ecosystems, taking into account all the relevant ecological variables; 3) test ecosystem sensitivity to natural and anthropic disturbance; and 4) explore specific actions to be taken for the restoration of ecosystem integrity."--Jacket.
Model tests and numerical simulations of liquefaction and lateral spreading ; LEAP-UCD-2017
This book presents work collected through the Liquefaction Experiments and Analysis Projects (LEAP) in 2017. It addresses the repeatability, variability, and sensitivity of lateral spreading observed in twenty-four centrifuge model tests on mildly sloping liquefiable sand.
Max-Plus Linear Stochastic Systems and Perturbation Analysis
This book provides a thorough treatment of the theory of stochastic max-plus linear systems. Max-plus algebra is an algebraic approach to discrete event systems (DES), like queuing networks that are prone to synchronization. Perturbation analysis studies the sensitivity of the performance of DES with respect to changes in a particular system parameter.
Innovative Endocrinology of Cancer
Deals with developments in such topics as mechanisms of hormonal carcinogenesis, epidemiology and risk factors, hormone production by tumor tissue and hormonal sensitivity of the latter, genesis, dichotomy and endocrinology of cancer in females, and pharmacogenomics and proteomics in oncoendocrinology.
Impacts and Risk Assessment of Technology for Internet Security : Enabled Information Small-Medium Enterprises (TEISMES)
This emerging economy is bringing with it new forms of TEI intermediation, online businesses, virtual supply chains, rapidly changing internet-electronic commerce technologies, increasing knowledge intensity, and unprecedented sensitivity of the time-to-market by customers. Impacts and Risk Assessment of Technology for Internet Security Enabled Information Small-Medium Enterprises (TEISMES) also identifies ways of minimizing risk liability of TEISME business operations as a result of their dependence on TEI (Internet-eC). The rapid evolution and spread of information technology (IT) during the last few years is challenging SMEs, governments and internet security professionals to rethink the very nature of risk exposure. Impacts and Risk Assessment of Technology for Internet Security Enabled Information Small-Medium Enterprises (TEISMES) is designed for a professional audience of researchers and practitioners in industry. This book is also suitable for graduate-level students in computer science.
Hypersensitivity = فرط الحساسية
فرط التحسس هو عبارة عن ردود فعل لجهاز المناعة تسبب ظواهر غير مرغوب بها تشمل تضرر الأنسجة و الإمراض المتعددة هذه الظواهر المرضية الناجمة عن نشاط جهاز المناعة تسمى ظواهر فرط التحسس حيث إن جهاز المناعة يحمي الجسم من الأجسام الضارة الخارجية وخاصة الملوثات و السبب الأكثر شيوعا لحدوث ظواهر فرط التحسس هي عدم تمييز جهاز المناعة أحيانا بين الأجسام الذاتية وبين الأجسام الدخيلة هذا التمييز يشكل صفه ضرورية لجهاز المناعة لضمان أداء وضيفي سليم وحتى ليقوم جهاز المناعة بمهاجمة الأنسجة الذاتية أمراض فرط التحسس من الممكن ان تحدث بسبب رد فعل مناعي مفرط ضد مسببات خارجية مثلما هو الحال مع إمراض الحساسية .
Highly Sensitive Optical Receivers
Highly Sensitive Optical Receivers primarily treats the circuit design of optical receivers with external photodiodes. Continuous-mode and burst-mode receivers are compared. The monograph first summarizes the basics of III/V photodetectors, transistor and noise models, bit-error rate, sensitivity and analog circuit design, thus enabling readers to understand the circuits described in the main part of the book. In order to cover the topic comprehensively, detailed descriptions of receivers for optical data communication in general and, in particular, optical burst-mode receivers in deep-sub-µm CMOS are presented. Numerous detailed and elaborate illustrations facilitate better understanding.
High Resolution Infrared Spectroscopy in Astronomy ; Proceedings of an ESO Workshop Held at Garching, Germany, 18-21 November 2003
Two specialized new instruments for ESO's VLT, VISIR and CRIRES, spawned the idea for this workshop. CRIRES is a dedicated very high resolution infrared spectrograph; VISIR features a high resolution spectroscopic mode. Together, the instruments combine the sensitivity of an 8m-telescope with the now well-established reliability of VLT-facility instruments. High resolution here means that lines in cool stellar atmospheres and HII-regions can be resolved. The astrophysical topics discussed in this rather specialized workshop range from the inner solar system to active galactic nuclei. There are many possibilities for new discoveries with these instruments, but the unique capability, which becomes available through high-resolution infrared spectroscopy, is the observation of molecular rotational-vibrational transitions in many astrophysical environments. Particularly interesting and surprising in this context, many papers on modeling and laboratory spectroscopy at the workshop appear to indicate that astronomical observations are lagging a bit behind in this field. The papers are an interesting mix of reports from existing high resolution facilities, reports on modeling efforts of synthetic spectra and reports on laboratory spectra. In this sense, a fruitful exchange between molecular physics and astronomy was again accomplished and is documented in this volume.
Frontiers in Chemical Sensors : Novel Principles and Techniques
With their similarity to the organs of the most advanced creatures that inhabit the Earth, sensors are regarded as being the “senses of electronics”: arti?cial eyes and ears that are capable of seeing and hearing beyond the range of - man perception; electronic noses and tongues that can recognise odours and ?avours without a lifetime training; touch that is able not only to feel the texture and temperature of the materials but even to discern their chemical compo- tion. Among the world of chemical sensors, optical devices (sometimes termed “optodes”, from the Greek “the optical way”) have reached a prominent place in those areas where the features of light and of the light-matter interaction show their advantage: contactless or long-distance interrogation, detection sensitivity, analyte selectivity, absence of electrical interference or risks, and lack of analyte consumption,
From Cells to Proteins : Imaging Nature across Dimensions ; Proceedings of the NATO Advanced Study Institute, held in Pisa, Italy, 12-23 September 2004
This book offers updated information on how much information we are able to obtain in the exploration of the inner details of biological specimens in their native structure and composition. And deals with the implementation of laser beam and stage scanning systems incorporating confocal optics or multiphoton microscopy; the advent of new electro-optical detectors with great sensitivity, linearity, and dynamic range; the possibility of 2D fast image enhancement, reconstruction, restoration, analysis and 3D display, and the application of luminescence techniques.
Food allergies processing technologies for allergenicity reduction
Provides an authoritative source of information on the relationship between food processing technologies and food allergens with a greater variety of studied allergens including peanuts, tree nuts, cow’s milk, eggs, sesame, lupine, soy, wheat, mustard, mushroom, fish and shellfish, as well as the importance of processing these when producing hypoallergenic foods.
Food allergens : methods and protocols
Provides a comprehensive collection of methods and protocols in food allergy and food allergens studies. The selected protocols explore the study of food allergens, from recombinant production, purification procedures, IgE and T cell epitopes characterization, to allergen structure description, cellular responses, and tolerance induction, through a variety of techniques and animal models.
