Elektronik og kommunikationsteknik

Dagligt fristes vi af store annoncer om trådløse produkter. Med mobile bredbånd kan der surfes på nettet med smartphones og en bærbar computer, og de unge føler sig usårlige.Døgnet rundt udsættes vi for trådløs forurening. Er trådløse markeder vigtigere end sundhed og miljø? Vi misinformeres om sikre grænseværdier, som ikke findes. Vi fodres med forskningsskabte myter, fakta frasorteres og lægelige advarsler ignoreres.Det er på høje tid med forebyggelse. Børn kan ikke beskytte sig selv imod en usynlig og ukendt fare.

I "Maskinerne kommer indefra" forklarer Anders Søgaard, hvordan kunstig intelligens lærer at se, tale og tænke – men han spørger også, hvorvidt kunstig intelligens lærer at se, tale og tænke på samme måde som os? Er der noget, mennesker kan, som kunstig intelligens aldrig vil blive i stand til? Og i hvilket omfang vil kunstig intelligens ændre, hvem vi er? Kunstig intelligens er blevet mere og mere intelligent, men er vi også langsomt ved at blive mere og mere kunstige?Om forfatteren:Anders Søgaard (f. 1981) er forfatter og professor på Datalogisk Institut, Københavns Universitet, og er en af landets førende eksperter i maskinlæring og kunstig intelligens. Han er uddannet fra Forfatterskolen i 2002 og har udgivet seks skønlitterære bøger. Senest er udkommet "Iliaden" (2023).

This book contains more than 100 exercises for learning how to program programmable logic controllers (PLCs). At the same time, the exercises provide knowledge of how equipment, machines and small plants can be automated.There are exercises at beginner level with logic, counters, and timers. Then there are exercises with ARRAY, STRUCT, STRING, as well as exercises with mathematics, functions, function blocks, program design, sorting, FIFO, and data collection. Some exercises include selecting sensors, sequence techniques, manual/automatic operation, and data communication to a robot, frequency converter, or vision camera.The exercises start with easy ones and get harder as you go along. You can begin with simple exercises and gradually move on to more challenging ones that require a range of methods and programming skills. The exercises are based on relevant, real-world automation problems.The exercises can be solved in all types of PLCs, regardless of brand, hardware, or model. There are enough exercises for at least 400 hours of homework!The book is designed for use in educational programs or training that include PLC programming, such as automation technician, electrician, automation engineer, or mechatronics engineer. Of course, the exercises can also be used for other educational programs that teach basic programming or automation.The author is an experienced engineer and senior lecturer with over 30 years of experience in software development. He has been teaching PLC programming at the Dania Academy in Denmark for more than seven years.The author has published several books and sold more than 10,000 copies.

Dieses Buch enthält mehr als 100 Übungen zum Erlernen der Programmierung von speicherprogrammierbaren Steuerungen (SPS). Gleichzeitig vermitteln die Übungen Kenntnisse darüber, wie Geräte, Maschinen und kleine Anlagen automatisiert werden können.Es gibt Übungen auf Anfängerniveau mit Logik, Zählern und Zeitgebern. Dann gibt es Übungen mit ARRAY, STRUCT, STRING sowie Übungen mit Mathematik, Funktionen, Funktionsblöcken, Programmgestaltung, Sortierung, FIFO und Datenerfassung. Einige Übungen umfassen die Auswahl von Sensoren, Sequenztechniken, manuellen oder automatischen Betrieb und Datenkommunikation mit einem Roboter, eine FU oder einer Vision-Kamera.Die Übungen im Buch beginnen mit einfachen Beispielen und werden schwieriger, je weiter Sie voranschreiten. Sie können mit einfachen Übungen beginnen und sich allmählich zu anspruchsvolleren vorarbeiten, die verschiedene Methoden und Programmierfähigkeiten erfordern. Die Übungen im Buch basieren auf relevanten, realen Automatisierungsproblemen.Die Übungen können in allen Arten von SPS gelöst werden, unabhängig von Marke, Hardware oder Modell. Es gibt genug Übungen für mindestens 400 Stunden Übungen!Das Buch ist für den Einsatz in Bildungsprogrammen oder Schulungen konzipiert, die die SPS-Programmierung umfassen, wie z. B. Automatisierungstechniker, Elektriker, Automatisierungsingenieur oder Maschinenbauingenieur. Natürlich können die Übungen im Buch auch für andere Bildungsprogramme verwendet werden, die die Grundlagen der Programmierung oder Automatisierung vermitteln.Der Autor ist ein erfahrener Ingenieur und leitender Dozent mit über 30 Jahren Erfahrung in der Softwareentwicklung. Er unterrichtet seit mehr als 7 Jahren SPS-Programmierung an der Dania Academy in Dänemark.Der Autor hat mehrere Bücher veröffentlicht und mehr als 10.000 Exemplare verkauft.

Anvendt elektroteknik – elektricitetskilder omhandler og præsenterer de elektricitetskilder, som ikke baserer sig på induktionsprincippet. Det gælder fx termoelektricitet, solceller, batterier, akkumulatorer og brændselsceller.Derudover præsenterer bogen halvlederne og deres egenskaber, da halvledere har stor betydning for flere af de omtalte elektricitetskilders funktion.Anvendt elektroteknik – elektricitetskilder sigter mod at give læseren forståelse for de overordnede principper og kendskab til de terminologier, der knytter sig til emnet.Anvendt elektroteknik – elektricitetskilder er målrettet de videregående tekniske uddannelser, især på erhvervsakademierne og maskinmesterskolerne. Bogen lægger vægt på en praktisk tilgang til stoffet. Bogen kan derfor ses som et supplement til Anvendt elektroteknik – elektriske maskiner af samme forfatter.

In the vast blue ocean, ships of different navies operate far from each other and are generally not in visual range. However, a ship can be uniquely identified based on a number of emissions that are characteristic to each and are called signatures. These include acoustic signature from machinery and flow, heat or infrared signature from exhaust, radar cross section from hull surfaces, magnetic signature from hull material, electric signature from corrosion protection systems etc. These signatures are used by surveillance and tracking sensors for attacking ships in general and warships, in particular. Survivability at sea requires management of all platform signatures to produce a net effect of reduced vulnerability. Anti-ship missiles pose the greatest threat to ships at sea. Prior to the Second World War, studies were carried out in parallel on the use of radar and infrared seekers in missiles for detection, identification and homing. For the materials available in the 1940s, radar seekers gave better results and hence, have become the standard fit. Over the years, advances in material sciences have improved the capabilities of infrared seekers and today, missiles have several guidance/seeker options that include radar, electro- optical camera and infrared imaging. Infrared homing is preferred for terminal guidance because of its inherent immunity to jamming techniques. A stealthy naval platform remains undetected and therefore can be deployed closer to the target to fulfill its mission with lesser risk of damage and associated causalities. Signatures used for ship detection include both underwater and above water. Signatures used by underwater weapons like torpedoes and mines are acoustics, magnetics, wake homing and extremely low frequency emissions (ELFE). Anti-ship missiles use above water signatures that include laser cross section (LCS), radar cross section (RCS), air borne noise and infrared (IR).

The Core Network for 5G Advanced, Second Edition covers up to the 3GPP release 17 & 18 which includes the core network for 5G Advanced as well as a large number of new features added by 3GPP to expand the initial 5G Core specifications in rel-15/16. This new release includes A complete update to reflect developments in Releases 17 and 18, along with new chapters on Service Exposure, non-3GPP access, 3GPP access for new use cases, Edge computing, Industry and Enterprise features, Regulatory services and Network automation and AI/ML, an overview of the 5G Core Architecture, and much more.Examples of 5G network deployment options for different use cases are also included. Written by authors who are heavily involved in the development of 5G standards, and who have written several successful books on 4G and 5G Core Networks, this book provides an authoritative reference on the technologies and standards of the 3GPP 5G Core network.

Decision-making is a key factor to achieve success in any discipline, especially in a field like civil engineering, which is based on calculations and requires large amounts of information being taken into account. Most processes and procedures are a compendium of many different tasks and requirements specific to each project under development, and making decisions in such environments can often be an arduous endeavor. That is why the need for analytical criteria capable of assisting with untangling complex scenarios has arisen preponderantly. As an all-encompassing resource, Multicriteria Decision-Making Analysis for Civil Engineering Applications facilitates civil engineers by outlining state-of-the-art techniques for quantitative decision-making to optimally select the appropriate approach when faced with operational issues or to prioritize among multiple options. Authored by recognized experts in the field, this book proves to be a balanced reference volume that is essential not just for civil engineers, but also for a wide variety of audiences in interconnected disciplines.

Nanoferrites for Emerging Environmental Applications discusses the synthesis and structure of nanoferrites, as well as their electrical, optical, and magnetic properties. This book also provides a detailed discussion of the use of nanoferrites for various environmental applications, such as for water and air pollution detection and remediation. This book covers almost every aspect of nanoferrites for environmental applications and will be of great use to researchers working in multidisciplinary areas. Nanoferrites’ superior electronic, optical, and magnetic properties make them promising agents in a wide spectrum of applications. After looking at the fundamentals of nanoferrites, this book proceeds to analyze their application in a comprehensive range of environmental applications. Topics covered include wastewater treatment, the removal of heavy metal ions, remediation of organic and inorganic pollutants, and their use in the detection and remediation of both air and solid pollution. Future opportunities for research are also addressed.

Rehabilitation Robotics and Healthcare Devices presents cutting-edge topics in rehabilitation robotics and healthcare devices, covering basic concepts and providing readers with enough information to solve various practical problems. The book proves to be an excellent source to study the different emerging paradigms in rehabilitation robotics and healthcare areas, including related technologies such as sensors, wearable devices, internet of medical things, big data, machine learning for eHealth, edible sensors, robots in medicine, and exoskeleton robots for rehabilitation.

Advancements in Nanotechnology for Food and Packaging explores current trends, advances and associated challenges of the applications of nanotechnology in the food sectors, such as the fabrication and characterization of functional food, developments and shelf-life extension. This book is organized into 16 chapters that cover the main concepts related to the use of nanotechnology in food processing, packaging and monitoring. Coverage includes food functionalization, quality management and control, food sensory, membrane filtration technology, nanotechnology-based sensors, sustainable packaging, regulatory aspects, and much more. This book an essential resource for materials and food scientists, technologists, researchers, academics and professionals working in nanotechnology and food science.

Stimuli-Responsive Nanocarriers for Targeted Drug Delivery presents a comprehensive overview of the most significant physical and chemical stimuli-responsive drug delivery systems. This book reviews targeted and controlled drug delivery systems and how nanocarriers can be used to improve the pharmacokinetics of drugs in biological systems, such as increasing utilization rate and reducing toxicity and side effects. After a key introduction to the topic, a range of nanocarrier types is assessed before exploring the clinical translation challenges and considerations involved.This book is a useful resource for researchers and postgraduate students in the fields of materials science, nanotechnology, pharmaceutical science, and medicinal chemistry.

Advanced Logic Design Techniques," authored by Zhang Dan, delves into sophisticated approaches and cutting-edge tactics required for mastering digital system design. This thorough guide navigates readers through the complexity of logic circuits, delivering in-depth insights into optimization, synthesis, and verification methods. With a rigorous blend of theoretical principles and practical applications, this book equips both rookie and seasoned engineers with the tools essential to face modern design issues. From algorithmic optimizations to sophisticated synthesis approaches, Zhang Dan presents a holistic approach to logic design, making this book an invaluable resource for students and experts in the field of digital electronics.

"An innovative introduction to the foundations of signals, systems, and transforms, emphasising discretetime concepts, and smoothing the transition towards study of Digital Signal Processing (DSP). With realworld examples throughout, and over 325 end-of-chapter problems. Ideal for sophomore and junior students in electrical engineering"--

Devices for generation, distribution and regulation of electric power are important parts of appliances for healthcare, comfort, defence and transportation. Two classes of such devices discussed in this thesis are diodes and MOSFETs. These are used in rectification, amplification and switching applications, and are realized in semiconductor materials. The power level at which these devices operate is decided by the application. Depending on the voltage and current rating, this can vary from 1 Giga Watt at the power station to few Watts for mobile chargers. To cater to this wide range of power levels, power converter circuits are often employed. Depending on the application, these converters could be AC-DC, DC-AC, DC-DC or AC-AC. Although the functionality of these circuits is different, all of them invariably requires power switches. The performance of these switches decides the conversion efficiency of the converter. So far, power devices fabricated in Si (silicon) have been the workhorse. It is of interest to discuss the performance of a Si switch in terms of the five characteristics listed above. Silicon switches are mostly normally off and thereby avoid complex driving circuits. Apart from this, Si switches underperform in terms of the other four characteristics. Superjunction concept was originally introduced in the context of silicon devices. Later, it has been extended to other wide bandgap materials like SiC and GaN to combine the advantage of linear VBR-RONSP relation and the large value of EC. It is to be noted that although different materials offer different technological challenges to realize a superjunction, the theory of superjunction operation and the analytical design equations are valid across materials upon making changes to the material specific parameters (e.g. impact ionization coefficients, mobility etc.). Hence, a model developed to design the optimum superjunction parameters has potentially a large impact. It can help technologists working across materials to steer their efforts more effectively towards realizing the best device for a target application with minimum cost and effort.

Innowacionnaq transformaciq harakteristik äkosistemy umnogo proizwodstwennogo processa w konkretnom ob#ekte nedwizhimosti w razwituü kombinirowannuü nadsistemu s wzaimoswqzannymi podsistemami onlajn kontrolq w rezhime real'nogo wremeni w tom chisle ¿ modulej änergoobespecheniq i wodopodgotowki.Nadsistema wklüchaet w sebq predwaritel'nyj analiz dolgosrochnyh prognozow razwitiq dannoj oblasti tehniki, tehnologii i relaxacii sotrudnikow, ispol'zowanie rezul'tatow analiza dlq formirowaniq processa integracii 44 kommercheskih sistemnyh kriteriew ocenki umnogo ob#ekta nedwizhimosti s sistemami 40 + 10 kriteriew i sposobow polucheniq ideal'nogo konechnogo rezul'tata po kwalifikacii Teorii i Algoritma resheniq izobretatel'skih zadach.Specifika dizajna i logistiki stroitel'stwa äkosistemy umnogo ob#ekta ili komplexa nedwizhimosti i ego innowacionnyh komponentow äkosistemy kak awtonomnoj nadsistemy i whodqschih awtonomnyh innowacionnyh podsistem infrastruktury, obespechiwaüschih ego maximal'nuü äkonomicheskuü äffektiwnost' i äkologicheskuü chistotu processow stroitel'stwa i äxpluatacii, pri maximal'noj äkonomii änergii i drugih resursow.

Robotics is a diverse field, mechanically complex and with challenges in software and design. Technology is advancing quickly today, with breakthroughs in traditional automation and mechatronics, new approaches in autonomous systems and even the advent of everyday A.I. And although new robots, drones or autonomous systems are increasingly appearing all around, getting started in robotics can be difficult: terms are unknown, concepts only vaguely familiar, abbreviations difficult to decipher. What is an AMR (an "autonomous mobile robot")? What are robot ethics? Will patrol robots police our streets? What is a SCARA or Cartesian robot?This Micropolis Robotics Handbook is mainly written in the form of a technical terms glossary, meant as a quick-start guide on robotics. Short paragraphs per term summarize often complex matter to provide you with an overview of the field. Selected terms receive broader discussion in short articles. Several concepts are visualized in black and white illustrations. Organized like an encyclopedia, this basic reference book is a first primer on this fascinating and highly relevant topic of Automation, Industrial and DIY Robots and Industrial Technology.

Il presente testo nasce da una serie di dispense impiegate nel corso degli anni, in progetti di formazione e consulenza aziendale, e contiene i fondamenti necessari alla comprensione dell'argomento. Più in generale, può essere una valida traccia per lo svolgimento di lezioni sul tema. Vengono introdotti i concetti base di tecnologia degli utensili per la scelta ragionata dei parametri nelle lavorazioni di tornitura e fresatura. Le istruzioni del linguaggio ISO standard trattate, sono sufficienti in un eventuale percorso scolastico o formativo, per realizzare particolari meccanici anche complessi. Il libro si rivolge a studenti di istituti tecnici e professionali a indirizzo meccanico e meccatronico, e agli utenti che frequentano corsi di formazione dedicati alla programmazione delle macchine utensili CNC. In ambito aziendale può essere uno strumento di aggiornamento professionale per chi opera in produzione e per gli addetti al controllo qualità.

Dans l'industrie chimique, la plupart des processus sont modélisés par des équations non linéaires. Il s'agit de concevoir des contrôleurs non linéaires performants pour une commande efficace des processus non linéaires afin d'obtenir la stabilité et les performances élevées du système en boucle fermée. Les procédures de conception proposées dans ce travail reposent fortement sur le modèle de processus, la difficulté abordée est l'identification d'un modèle relativement simple de processus non linéaires. La non-linéarité des processus rend difficile l'obtention d'un modèle de premier principe utilisé pour l'analyse et la conception du contrôleur. Des modèles empiriques simples sont choisis pour représenter les processus non linéaires pour la conception des contrôleurs. La deuxième difficulté est que l'analyse de la stabilité et de la performance de tels modèles en utilisant la théorie du contrôle non linéaire n'est pas simple. Il est proposé dans cette étude d'étudier la stabilité et la performance en utilisant une approche de contrôle robuste. Le modèle non linéaire est approximé par un modèle linéaire nominal combiné à une description mathématique de l'erreur de modèle à laquelle on se réfère, dans ce travail, en tant qu'incertitude de modèle, par rapport au modèle linéaire nominal est due à la non-linéarité du système. Ensuite, les outils théoriques du contrôle robuste sont appliqués pour la conception des contrôleurs.

Les personnes malvoyantes utilisent généralement des cannes en bois ou des animaux domestiques pour avoir une idée imparfaite du chemin à suivre pendant leurs déplacements. En gardant à l'esprit ce problème, Nav-Belt a été conçu pour aider les personnes malvoyantes à se déplacer librement et à détecter l'environnement ainsi que les obstacles présents dans les environs. L'obstacle est détecté à l'aide de cinq capteurs infrarouges à DEL qui fournissent un retour d'information sur l'obstacle détecté au microcontrôleur. En cas d'égarement, les personnes peuvent également utiliser leur smartphone, relié par un écouteur, pour contacter le dernier numéro composé et demander de l'aide.

V ätoj knige sobrany obschie swedeniq o fotoälektricheskih sistemah, o stroenii i dejstwii fotoälementow i principe ih raboty, a takzhe o proektirowanii i modelirowanii fotoälektricheskoj sistemy i principe raboty kazhdogo komponenta: fotoälementa, staticheskogo preobrazowatelq, MPPT-kontrollera, a takzhe ih harakteristiki.

Este livro reúne informações gerais sobre os sistemas fotovoltaicos, a constituição e o efeito das células fotovoltaicas e o seu princípio de funcionamento, bem como a conceção e a modelação de um sistema fotovoltaico e o princípio de funcionamento de cada componente: a célula fotovoltaica, o conversor estático, o controlador MPPT, bem como as suas características.

Dieses Buch vereint allgemeine Informationen über Photovoltaiksysteme, den Aufbau und die Wirkung von Solarzellen und deren Funktionsprinzip, den Entwurf und die Modellierung eines Photovoltaiksystems sowie das Funktionsprinzip der einzelnen Elemente, aus denen sich die Solarzelle, der statische Wechselrichter und der MPPT-Regler zusammensetzen, sowie deren Eigenschaften.

This book brings together general information on photovoltaic systems, the constitution and effect of photovoltaic cells and their operating principle, as well as the design and modeling of a photovoltaic system and the operating principle of each of the elements that make up the photovoltaic cell, the static converter and the MPPT controller, along with their characteristics.

Questo libro raccoglie informazioni generali sui sistemi fotovoltaici, la costituzione e l'effetto delle celle fotovoltaiche e il loro principio di funzionamento, nonché la progettazione e la modellazione di un sistema fotovoltaico e il principio di funzionamento di ciascun componente: la cella fotovoltaica, il convertitore statico, il controllore MPPT, nonché le sue caratteristiche.