Hydroteknik

Og stormfloden kom En historisk roman om stormfloden i 1872. Bogen handler om menneskets kamp mod havet, om bøndernes hårde slid med at grave grøfter og bygge diger i et forsøg på at fravriste land og muld fra det salte vand, der hele tiden siver ind over markerne og slår afgrøderne med misvækst. Gennem fire slægtled får vi oprullet historien om 1800-tallets mange forsøg på at indvinde jord fra Rødby Fjord. Romanen starter i 1808, hvor Reventlowfamilien omplanter to dygtige fæstebønder, Otte og Jerk, fra Als til Lolland. Sammen med deres familier giver Otte og Jerk sig i lag med det hårde arbejde i marken, og som årene går lykkes det for dem at gøre jorden mere frugtbar. Samtidig arbejder rige købmænd med store planer om at inddæmme og tørlægge hele fjorden – planer der møder modstand hos småbønder og fjordfiskere, der ser deres livsgrundlag truet. Den 13. november 1872 kommer stormfloden, der slår alle bestræbelser og drømme omkuld, men sætter liv i nye. I bogens sidste del fortæller ingeniøren Nikolaj Ottesen, Otte-slægtens 4. generation, om sit bidrag til den endelige tørlægning af Rødby Fjord i 1929. Og stormfloden kom er en barsk og bevægende roman om mennesker og deres livtag med naturens kræfter, om historiens hjul, der med nye kræfter ruller hen over gamle slægters møjsommeligt tilkæmpede landvindinger.

Den lille, men vægtige, roman handler om digebyggeren Haike Hauens kamp mod naturen, med ham selv og med det omgivende samfund ved marsklandet i Sydslesvig, der lever i en evig angst for at blive opslugt af havet. En kamp mellem naturens mytologiske kraft og det rationelle menneskes forsøg på at bekæmpe den. Thomas Mann kaldte Theodor Storm ”en mester”. Nu genudgives hans hovedværk Skimmelrytteren, der samtidig er en klassiker i den tyske litteraturhistorie, på dansk. Bogen regnes til den tyske realisme, men har fået fornyet aktualitet i kraft af sin skildring af menneskets naturforhold og kamp mod stigende vandmasser.Theodor Storm levede 1817-1888 i Nordtyskland. Født i Husum, hvor han også senere vendte tilbage som advokat og forfatter.

Velkommen ombord på tidsmaskinen, der i form af denne bog tager læseren med på en rejse i ord og billeder tilbage til Rønne havn i 1960’erne. Her er mulighed for at se de gamle kajer, havneanlæg, bygninger og ikke mindst de kønne og specielle skibe, som lagde til i havnen i forbindelse med fiskeri, havneudvidelser, fragt- og passagersejlads. Meget er ændret siden dengang men ikke mere end, at man - ved synet af de mange samtidige fotografier i bogen - tænker: "Jamen, det var jo lige i forgårs". Vi ønsker en behagelig havnevandring.

This book presents the select proceedings of the 1st International Conference on River Corridor Research and Management (RCRM 2021). It describes various topics on fluvio-hydro-ecological processes of river systems. The topics covered include river dynamics and morphological changes, river health and ecological aspects and satellite remote sensing for river corridor studies. The book also discusses the morphological behavior of gravel and sand-bed rivers, hydrological and hydraulics modeling and other important aspects of riverine ecology. The book will be a valuable reference for research scholars, academicians, river scientists and practitioners working in the areas of river science.

This book covers the basics of DC circuits, AC circuits, three-phase power to understand the basics and controls of electro-hydraulics and electro-pneumatics. This book covers detailed knowledge on the fluid power properties, Bernoulli's equation, Torricelli's theorem, viscosity, viscosity index, hydraulic pumps, hydraulic valves, hydraulic motors, pressure control valves, pneumatic systems, pneumatic cylinders, different types of gas laws, valve actuation, relay, magnetic contactor, different types of switches, logic gates, electro-pneumatic control circuits with different options and introduction to PLC. In addition, the detailed technique of Automation Studio software, different types of simulation circuits with hydraulics, pneumatics and electro-pneumatic are included. This book will be an excellent textbook for electromechanical, robotics, mechatronics, electrical control and mechanical students as well as for the professional who practices fluid power systems.

This book provides a timely review on recent advancements in rock-filled concrete dam: a new type of dam originated from Tsinghua University in China. It covers historical overview of the development, filling process of high performance self-compacting concrete, mechanical and physical properties of rock-filled concrete, design of rock-filled concrete gravity dams and arch dams, as well as construction and quality control specifications. The book is intended for researchers, practicing engineers and graduate students who are interested in fundamental research and engineering design principles of rock-filled concrete dams. Successful insights gained from more than 120 rock-filled concrete dams completed or under construction in China are presented in this book, which can be useful references for all readers.

The book presents the recent advances on testing and experimentation in civil engineering, especially in the branches of geotechnics, transportation, hydraulics, and natural resources. It includes advances in physical modelling, monitoring techniques, data acquisition and analysis, and provides an invaluable contribution for the installation of new civil engineering experimental facilities. The first part of the book covers the latest advances in testing and experimentation in key domains of geotechnics: soil mechanics and geotechnical engineering, rock mechanics and rock engineering, and engineering geology. Some of the topics covered include new developments in topographic survey acquisition for applied mapping and in situ geotechnical investigations; laboratory and in situ tests to estimate the relevant parameters needed to model the behaviour of rock masses and land structures; monitoring and inspection techniques designed for offshore wind foundations. The second part of the book highlights the relevance of testing and monitoring in transportation. Full-scale accelerated pavement testing, and instrumentation becomes even more important nowadays when, for sustainability purposes, non-traditional materials are used in road and airfield pavements. Innovation in testing and monitoring pavements and railway tracks is also developed in this part of the book. Intelligent traffic systems are the new traffic management paradigm, and an overview of new solutions is addressed here. Finally, in the third part of the book, trends in the field and laboratory measurements and corresponding data analysis are presented according to the different hydraulic domains addressed in this publication, namely maritime hydraulics, surface water and river hydraulics and urban water. 

Master's Thesis from the year 2007 in the subject Agrarian Studies, grade: Very Good, , course: Irrigation Engineering, language: English, abstract: This study is an attempt to identify the main causes and effect of flooding on agricultural production and the peoples living in the Lake Tana surroundings. Although floods are relatively common during the June to September rainy season in Ethiopia, the magnitude of the current flooding in 2006 is unprecedented. In year 2006 the country has experienced some of the heaviest and most intense rains on record; resulting in flash floods and/or the overflow of rivers, lakes and dams, where local residents have been advised to leave. The impact of the disaster in terms of lives, infrastructure, livelihoods, and basic coping mechanisms has yet to be assessedThe rainfall variability analysis of the Lake Tana (LT) basin in 2006 showed an on average 43% increase in wet season rainfall than the normal (mean). All rainfall gauging stations show an increase in rainfall in 2006. Similarly, the variability analysis of major rivers also showed that on average 35% increase in flood season streamflow of G/Abay, Gumara, Rib, Megech, and Koga. The trend of these rivers shows that maximum runoff for the year 2006 was higher than the mean of the long term maximum flood. Whereas Lake Tana maximum flood level of 2006 (1787.155masl) shows an increase of 16 cm only from the mean flood levels of previous records (1787 masl). The Pearson III method of the moment probability distribution is the best fit for Megech and Rib rivers. For Gumara river Pearson III probability weighted moment distribution better estimate flood quantiles with less standard error. It is also found that Gamma two probability weighted moment is the best fit for Lake Tana water surface level. In general, from rainfall and flood frequency analysis the 2006-year flooding may have a chance to occur once in six years in LTB. The 2006-year flood damage indicates that there is a high impact on agricultural production of Lake Tana surrounding plains. 107,647 peoples were actually affected by floods. At least 448, 910 quantal of food grain, 1230 domestic animals, 9634 chickens, and 1088 bee-hives were damaged by the 2006 flood. The impacts of flooding on socio-economic and environmental resource indicators were qualitatively assessed. Totally twenty-seven indicators were assessed.

The safety, maintainability, and maintenance of systems have become more important than ever before. Global competition and other factors are forcing manufacturers to produce highly safe and easily maintainable engineering systems.

The text defines and covers different themes of post-processing techniques based on mechanical, chemical/electrochemical, and thermal energy. It will serve as an ideal reference text for senior undergraduate and graduate students in diverse engineering fields including manufacturing, industrial, aerospace, and mechanical.

With industrial systems becoming ever more mechanized and reliant on advanced technology, the complexity of equipment, especially in risky industries is increasing on a daily basis. This title offers the knowledge required by safety professionals to provide and maintain the safety of engineering complex systems.

The text provides scientific and technological insights on novel techniques of design and manufacturing using laser technologies. It showcases applications of laser micromachining in the biomedical industry, laser-based manufacturing processes in aerospace engineering, and the high-precision laser cutting in-home appliance sector.

Handbook of Laser-Based Sustainable Surface Modification and Manufacturing Techniques discusses the main mechanism behind the surface degradation of structural components in strenuous environments.

This book covers topics of interest to a broad range of readers looking to develop and implement an effective fatigue risk management system in a single volume. It will an ideal text for professionals and graduate students in the fields of ergonomics, human factors, occupational health and safety, and automotive engineering.

The fields of Artificial Intelligence and Machine Learning have grown dramatically in recent years, with an increasingly impressive spectrum of successful applications. This book represents a key reference for anybody interested in the intersection between Mathematics and AI/ML and provides an overview of the current research streams.

Overskrifterne fortæller os, at kloden er ved at koge over, og at det haster med at stoppe udslippet af CO2 i atmosfæren. Heldigvis findes der en lang række af tekniske løsninger, som kommer til at gøre en forskel. I denne bog kan du læse om nogle af disse grønne teknologier: energi fra sol, vind og vand, nye former for atomkraft, brint som drivmiddel og energilager, huse på vandet, CO2-venligt byggeri, Power-to-X og meget mere. Så bevar optimismen. Med klog og smart teknologi kan vi sammen fikse klimakrisen.Fra 10 år.

Visual Ergonomics for Communication Design reveals the application of ergonomics principles in visual communication design. It enables the visual designer to look at different aspects of visual design from the point of view of the user to ensure that their designs are more user-friendly.

The text covers topics on the sustainability of nanomaterials in tribology, economic aspects of nanomaterials, theories, and mathematical models. It will serve as an ideal reference text for senior undergraduate, graduate students, researchers in diverse engineering domains including manufacturing, mechanical, aerospace, industrial, and materials.

Handbook of Sustainable Materials presents recent developments in sustainable materials and how these materials interact with the environment. It highlights the recent and advancements involved in proper utilization of sustainable materials, including chemical and biological approaches.

This new handbook brings together various views and experiences of the impacts of flooding and its management in Africa, Asia and Latin America by drawing from traditional and modern approaches adopted by communities, homeowners, academics, project managers, institutions and policy makers.

Sustainable Materials and Manufacturing Technologies is primarily written for senior undergraduate and graduate students, and for researchers in the field of mechanical, manufacturing, industrial, production engineering and material science.

This text will assist the reader in identifying and understanding the chemicals that are carcinogens and mutagens in the workplace. It will an ideal text for professionals and graduate students in the fields of occupational health and safety, industrial engineering, and chemical engineering.