Rumforskning

This book is a useful source of knowledge for engineers and scientists in the field of mechanics of deformation and destruction of composite materials.In Chapter 1 three-dimensional equations of elasticity theory composed for the case of finite displacements and deformations of solids have been analyzed. It is found that the generally accepted simplifications known in the literature and carried out for the case of small deformations result in equations that are considered to be absolutely correct and consistent in all scientific and educational literature on mechanics of deformable solid bodies. However, this conclusion is not sufficiently well-founded as confirmed by formulation and solution of problems on the basis of generally accepted equations for determining both the stress-strain state (SSS) and the critical loads and buckling modes. In Chapter 2 the theoretical and experimental methods for determining the mechanical characteristics of fiber-reinforced plastics (FRPs) based on tensile and compression tests of flat specimens with [0]s , [±90]s, and [±45]2s lay-ups are analyzed. For FRPs with [±45]2s lay-ups, relations are derived for determining the components of lamina strains and stresses in the orthotropy axes of FRP monolayer in terms of axial strains and Poisson ratios of specimens measured in experiments. In Chapter 3 the structure of a unidirectional fibre composite of two types ELUR-P carbon fibre based on KhT-118 cold-curing binder and HSE 180 REM prepreg based on hot-curing binder has been studied. The diameters of fibres and fibre bundles (filaments) of both types of composites have been measured. Based on the results of the analysis of the composite material structure, a refined formulation of the linearised problems of a refined statement of linearized problems on flat internal multiscale buckling modes of a rigid lamina with either fibers or a fiber bundle is presented taking into account their interaction with an epoxy matrix. In Chapter 4 for shells of a layered structure based on the Timoshenkös model, taking into account the transverse compression used for each layer, two versions of two-dimensional equations are constructed that describe geometrically nonlinear deformation with arbitrary displacements and small deformations. The formulation of a linear problem on the initial (subcritical) stress-strain state of a test specimen from a unidirectional fibrous composite with the [900]s structure during tension-compression tests with shear is given. A numerical method for solving the formulated problem is developed, which is based on the reduction of the original problem to a system of integro-algebraic equations and the search for their numerical solution by the finite sum method. In Chapter 5 conclusions were done and directions for further research have been identified.

This textbook is a multi-disciplinary compendium that includes several aspects of rotorcraft technology. It introduces the reader to the aerodynamic aspects of rotary wings and presents experimental techniques for aerodynamics. The chapters also cover rotorcraft engines and rotorcraft steady-state flight performance and stability. It explores several aspects of the tiltrotor configuration and lists challenges in their design, modelling and simulation. The reader will also find an introductory overview of flight control systems for rotorcraft, as well as the conceptual and preliminary design concepts for a conventional helicopter. This textbook contains video recordings of computer simulations that can be used alongside the main text.

Finally, we, as humanity, have severed the chains of gravity that bound us to Earth. At long last, we have emerged from our cradle and embarked on the journey to explore and inhabit the near-infinite universe that surrounds us. This monumental achievement is the culmination of 4.5 billion years of evolution. We have come to realize that we no longer venture into the cosmos as individual humans; instead, we traverse the great expanse as "The Human" - a single, unified race known as the Human Race. Therefore, whenever a human launches from any corner of Earth, they deserve equal recognition and gratitude.Please understand that what you are about to read is not a work of fiction; it is more exhilarating than that. It delves into the realm of what is real and everlasting, something that will continue to captivate our collective aspirations and passions far into the future.Throughout this incredible journey, individuals from all walks of life have stepped forward, competing for the limited seats aboard spacecraft, undergoing rigorous training, and ultimately, venturing into the cosmos. An Astronaut or Cosmonaut, much like any individual on Earth, may carry multiple identities based on nationality, race, gender, ethnic origin, language, beliefs, wealth, body size, type, and capabilities. Yet, irrespective of these attributes, two unwavering requirements persist: the ability to cooperate and an unwavering determination to succeed."SPACE-Ever Further, Ever Faster-Now!" is a captivating account of Humanity's Greatest Adventure, penned by yours truly, an astronaut who played a pivotal role in our early space endeavors. I had the privilege of embarking on a mission with two exceptional crewmates aboard Skylab III, setting world and American records, and I have remained deeply involved in space programs for many years since.In the United States, our foray into space was driven not only by the realization of the monumental leap we were taking but also by the practical necessity of outpacing international competition spurred by the Soviet Sputnik, which passed directly overhead. Our proactive response began with the Mercury and Gemini Projects, culminating in numerous Moon landings, the Skylab mission, the Space Shuttle program, and the International Space Station. Currently, we stand on the threshold of human exploration of Mars and exoplanets beyond our Solar System, ventures that have recently commenced via remote exploration.Our ambitions extend far into the future, but our achievements thus far have been small steps in the grand scheme of things. Indeed, we have dipped our toes into the waters, but as we strive to wade a little deeper, we gaze upward, beholding the endless ocean of space before us - a boundless realm brimming with excitement, opportunities, challenges, and rewards that beckon to us all.The time has come. Let us forge ahead with unwavering determination!

Are you aware of the pressing issue of space debris and its potential risks to human spaceflight? Whether you're a curious mind, a space enthusiast, or an aspiring space traffic manager, this handbook is an essential companion for the mind journey in the vast expanse of space.The handbook provides a historical overview of our journey beyond the Earth, allowing you to gain insights into the origins of space debris and its consequences. You'll also learn about the vulnerabilities of satellites and the importance of space acronyms like LEO (Low Earth Orbit), MEO (Medium Earth Orbit), and GEO (Geostationary Orbit).As you explore the evolution of space traffic management and the international landscape of space governance, you'll gain clarity on new policies and regulations surrounding space debris. Ultimately, this handbook prompts reflection on our cosmic legacy and the consequences of the Wild West approach to space matters.Don't miss out on the opportunity to understand the intricacies of space sustainability - you don't need to be a rocket scientist to do so!

This volume presents the conference proceedings from FinDrones 2023. The book highlights recent drone technology developments by experts and academicians for applications in agriculture, forestry, and other industries. This iteration of FinDrones presents research using autonomous drones in various fields from environmental monitoring to farm robotics and from photogrammetry to search and rescue missions. Emphasis is placed on contextualizing the conference presentations and content to Finland and the unique challenges typical to the region. The work will interest academicians, entrepreneurs, and professionals involved in remote sensing applications of unmanned aerial vehicles and enthusiasts of drone technological developments.

Spionsatellitter i kredsløb om månen.Rummetaller for milliarder af dollars.Mennesker på Mars i vores levetid.Det er ikke science fiction. Det er astropolitik. Et nyt rumkapløb er i gang – og det kan revolutionere livet på Jorden.Rummet er et vildt og lovløst sted. Det er allerede vitalt med hensyn til kommunikation, samfundsøkonomi, militærstrategi og internationale relationer på Jorden. Og det er menneskehedens nyeste arena for udforskning, udnyttelse – og sandsynligvis også erobring. Vi har kurs opad og udad, og vi tager vores magtkampe med os. Kina, USA og Rusland fører an, men andre forsøger også at gøre sig gældende.Tim Marshall er en førende ekspert i geopolitik, og i denne bog viser han os, hvordan vi er kommet dertil, hvor vi er i dag, og hvor vi er på vej hen. Læs om stormagtsrivalisering, teknologi, kommerciel udnyttelse, rumkrig – og hvad det betyder for os hernede på Jorden.

There are trillions of planets in our galaxy--billions with a formula for life. To think mankind is the only intelligent lifeform to evolve would be egotistical and absurd. Extraterrestrials not only exist, they pluck us from our beds and cars--anytime and everywhere--to study, teach, and prepare us for the inevitable. Robert Hunt knows this beyond a shadow of a doubt. He's been abducted by aliens since the night of his seventh birthday. This book is a true account of his sixty-three years as a human being who has experienced the unexplained, the unfathomable, the impossible--and lived to talk about it.

Dive into the heart of wartime innovation and manufacturing through this groundbreaking book, unveiling a riveting narrative of technological mastery and organizational ingenuity. This meticulously researched work challenges conventional views of wartime production, offering a fresh perspective on the incredible efforts that drove the Allies to victory.Young's insightful analyses illuminate the strategic collaboration between the aerospace and automotive industries, showcasing their collective adaptation that created the engines powering victory. Spanning continents, Young examines the transformation of aircraft engine manufacturing during World War II. Unearthing the operations of key players such as the Bristol Aeroplane Company, Pratt & Whitney, and Wright Aeronautical, he sheds light on the monumental shift from traditional batch production to revolutionary quantity production.Readers will witness the birth of new factories, the development of advanced machine tools, and the innovation required to produce engines of unparalleled complexity and precision. Through Young's fresh perspective, the book unveils the intricate interplay of crisis techno-politics, engineering resilience, and the pivotal role of innovation in shaping the tides of history.This book is not just a study of the past; it is a critical foundation for understanding the dynamics of wartime production that continue to influence our world today.

In Night Vision Pippa Goldschmidt writes about outer space and explores its multiple meanings as a place of awe and wonder to a more materialistic site in which scientific ideas are formulated and tested. This book explores space as a location of potential capital where commerce is being developed, leading to a new threatened 'enclosure of the commons'. Goldschmidt posits that outer space is not just a backdrop to our human lives, it connects us to each other through space-time, its ability to generate myths and stories, and our reliance on it to transmit information.How we view and use space is narrated through the lens of Pippa Goldschmidt's own interactions with it: a child reading a guide to the night sky, an astrophysicist doing research on the most distant objects known in the Universe, a regulator of outer space using international and British legislation, and finally a writer. Night Vision argues that we need to understand the importance of outer space in all its various manifestations so that we can protect it, and ourselves, from exploitation. Just as we have destroyed natural habitats on our own planet, we are now at risk of doing the same to other planets.

A fascinating new history of America, told through the stories of a diverse cast of ten extraordinary--and often overlooked--adventurers, from Sacagawea to Matthew Henson to Sally Ride, who pushed the boundaries of discovery and determined our national destiny.The archetype of the American explorer, a rugged white man, has dominated our popular culture since the late eighteenth century, when Daniel Boone's autobiography captivated readers with tales of treacherous journeys. But our commonly held ideas about American exploration do not tell the whole story--far from it.The Explorers rediscovers a diverse group of Americans who went to the western frontier and beyond, traversing the farthest reaches of the globe and even penetrating outer space in their endeavor to find the unknown. Many escaped from lives circumscribed by racism, sexism, poverty, and discrimination as they took on great risk in unfamiliar territory. Born into slavery, James Beckwourth found freedom as a mountain man and became one of the great entrepreneurs of Gold Rush California. Matthew Henson, the son of African American sharecroppers, left rural Maryland behind to seek the North Pole. Women like Harriet Chalmers Adams ascended Peruvian mountains to gain geographic knowledge while Amelia Earhart and Sally Ride shattered glass ceilings by pushing the limits of flight.In The Explorers, readers will travel across the vast Great Plains and into the heights of the Sierra Nevada mountains; they will traverse the frozen Arctic Ocean and descend into the jungles of South America; they will journey by canoe and horseback, train and dogsled, airplane and space shuttle. Readers will experience the exhilarating history of American exploration alongside the men and women who shared a deep drive to discover the unknown.Across two centuries and many thousands of miles of terrain, Amanda Bellows offers an ode to our country's most intrepid adventurers--and reveals the history of America in the process.

Astronomers agree the universe has more stars in it then there are grains of sand on Earth. Recently astronomers have stated that there may be more than one billion earth-size planets in habitable zones just within our own galaxy. Even though most astronomers might agree that there might be intelligent life out there, most would argue that the distances are too great for even a highly advanced life form to travel the light years that separate most stars. These astronomers base their reasoning on the chemical rockets and have not considered alternative propulsion methods such as gravitational field propulsion. Sixty years ago, humans ventured into space for the first time by using chemical rockets. What capabilities could intelligent beings have who are a few million (or even just a few thousand) years more advanced. There is strong evidence that the Earth has been and is being visited by intelligent beings. For example, during World War II, both sides reported Foo Fighters (bright orbs of light) following their aircraft. Today they are the most common type of UFO reported. Recently released films from Navy gun cameras show flight capabilities of UFOs that are beyond our capabilities. Credible witnesses have reported UFOs doing amazing things such as 100g accelerations, right angle turns, cloaking, freezing shallow ponds, and supersonic flight without creating shock waves. This is not magic! Using science that most people have in high school, this book will explain how all of this is done, and more. Topics covered in the book include the UFO Crash at Kingman, Arizona; A Brief History of Sightings; The Truth Embargo; The Search for ETs; The Sumerian Knowledge; The Deluge; The Great Pyramid of Giza; Contact with ETs; The Amazing Things UFOs Do; Time Travel and How ETs Travel Great Distances; The theory and practice of generating gravitational fields by manipulating electro-magnetic fields; Why UFOs Crash; and what the ETs Are Up To. Are the amazing bodies recently discovered near Nazca, Peru, alien bodies? An extensive bibliography is presented at the back of the book.

"Mercury Increasing: Stories of Temperature" is a charming collection that digs into the complex parts of temperature, investigating its effect on the regular world, human encounters, and the steadily developing elements of our planet. This assortment of stories, papers, and logical bits of knowledge gives a complete excursion through the range of temperatures, from singing highs to freezing lows, disentangling the narratives concealed inside this principal part of our current circumstance. The compilation starts by submerging perusers in the limits of temperature, disentangling the secrets of searing deserts, cold tundras, and in the middle between. Every story is a demonstration of the strength of life notwithstanding testing warm circumstances, offering a brief look into the step by step processes for surviving embraced by both greenery. Through distinctive symbolism and suggestive writing, the compilation portrays the mind boggling dance between living creatures and the temperature vacillations that shape their reality. Past the domains of the normal world, "Mercury Rising" dives into the human experience of temperature. From the nostalgic warmth of a late spring's day deep down chilling cold of winter, the treasury investigates the profound and mental effect of temperature on people. It digs into social points of view on intensity and cool, uncovering how various social orders have adjusted to and deciphered temperature varieties since the beginning of time. The human association with temperature is a string that winds through the compilation, interfacing different stories and making a rich embroidery of encounters. Logical experiences structure a basic piece of the collection, furnishing perusers with a more profound comprehension of the components overseeing temperature minor departure from Earth. From the complexities of environmental change to the material science of intensity move, the collection overcomes any barrier between logical talk and lay perusers, making complex ideas available and locking in. "Mercury Rising" isn't simply an assortment of secluded stories; a mosaic collects the divergent strings of temperature-related stories into a reasonable and intriguing embroidery. As perusers venture through the pages, they end up examining the interconnectedness of every living thing and the sensitive equilibrium kept up with by temperature in supporting life.

This book deals with the study of tilt-rotor omnidirectional aerial robots and their application to aerial physical interaction tasks. Omnidirectional aerial robots possess decoupled translational and rotational dynamics, which are important for stable and sustained aerial interaction. The additional ability to dynamically re-orient thrust vectors opens the door to a wide array of possible morphologies and system capabilities. Through modeling, control, prototype design, and experimental evaluation, this book presents a comprehensive methodology and examples for the development of a novel tilt-rotor aerial manipulator. This work serves as a guide for envisioning and constructing innovative systems that will advance the frontier of aerial manipulation.

This Handbook of Numerical Simulation of In-Flight Icing covers an array of methodologies and technologies on numerical simulation of in-flight icing and its applications. Comprised of contributions from internationally recognized experts from the Americas, Asia, and the EU, this authoritative, self-contained reference includes best practices and specification data spanning the gamut of simulation tools available internationally that can be used to speed up the certification of aircraft and make them safer to fly into known icing. The collection features nine sections concentrating on aircraft, rotorcraft, jet engines, UAVs; ice protection systems, including hot-air, electrothermal, and others; sensors and probes, CFD in the aid of testing, flight simulators, and certification process acceleration methods. Incorporating perspectives from academia, commercial, government R&D, the book is ideal for a range of engineers and scientists concerned with in-flight icing applications.

Fresh on the creation of United States Space Force in December 2019, three key organizatons met to secure the United States future in space: Space Force, the Air Force Research Laboratory, and the Defense Innovation Unit. This report answers the key question, "After Space Force: Now what?"This document is a summary report titled "State of the Space Industrial Base 2020" which discusses the current state of the space industry in the United States. It includes insights and recommendations from a workshop that brought together voices from the federal government, industry, and academia. The report highlights the challenges and opportunities facing the US in maintaining its leadership in space, including the impact of the COVID-19 pandemic. It emphasizes the need for a strong national vision and the importance of government support and private investment in the space industry. The document also provides information on the current state of the space industrial base, potential courses of action for the US government, and the role of public-private partnerships and international collaboration. Overall, it provides a comprehensive overview of the current state of the space industry in the United States and the need for action to sustain US economic and military leadership in space.This annotated edition illustrates the capabilities of the AI Lab for Book-Lovers to add context and ease-of-use to manuscripts. It includes five types of abstracts, building from simplest to more complex: TLDR (one word), ELI5, TLDR (vanilla), Scientific Style, and Action Items; three essays to increase viewpoint diversity: Ground forDissent; Red Team Critique; and MAGA Perspective; and Notable Passages and Nutshell Summaries for each page.

Astonishing images bring every corner of the universe, from Mars to the farthest galaxies, to the printed page.Cosmos is a visually captivating journey through the universe and is as expansive as the cosmos itself. It covers everything from the asteroid belt to deep space probes, the ISS to the Oort Cloud, the Big Bang to the end of the universe, and (just about) everything in between. It presents space as humanity has never seen it before.In this book you'll find: The latest images from NASA's James Webb Space TelescopePanoramic views of the surface of Mars and images captured by probes that have landed for the first time on comets and asteroids.Features on the technology of space exploration, the history of astronomy, and our cultural connection to the night sky.Cosmos is a tour through space, starting with the sun and inner solar system then moving through the outer planets and into the Milky Way and finally the realm of distant galaxies. The gorgeous images are supported by illustrations that dissect the image or explain the processes going on, such as star birth or the workings of supermassive black holes. Throughout the book are features on the technology of space exploration, the history of astronomy, and our cultural connection to the night sky. With a clear, stylish, pared-back design, Cosmos is a perfect introduction to the wonders of the universe for young and old astronomers alike. Make time for space time!

This book addresses the recent trends in high-temperature coatings that are used to provide oxidation and wear resistance to metallic/ceramic components in extreme environments. Ceramics, intermetallics, organosilicon polymers, cermets, and other materials with great thermal stability have long been recognized for these applications. This book introduces the state of the art in coating materials and processes for high-temperature environments and identifies areas for improvement in materials selection, performance upgrades, design considerations, and manufacturing methods. The book covers a variety of high-temperature coatings prepared through various synthesis processes such as thermal spraying, physical vapor deposition, electrodeposition, and sol¿gel methods. It covers corrosion/oxidation, phase stability, and thermal and mechanical behavior of high-temperature coating materials having greater thermal stability.With contributions from international researchers active in the field, this edited book features the most recent and up-to-date literature references for a broad readership consisting of academic and industrial professionals. It is suitable for graduate students as well as scientists and engineers working in the area of anti-corrosion and anti-wear resistant high-temperature coatings for industrial applications.

This book highlights issues related to the organization and improvement of the efficiency of training system in technical operation of radio-electronic equipment currently used in civil aviation. The increasing intensity of air traffic around the world leads to a quantitative increase in old problems and the emergence of qualitatively new ones that can only be solved by trained people, whose training process should be carried out on a systematic basis. Modern approaches to improving the human resources potential of civil aviation, as a rule, are based only on modernizing the management mechanisms of the training system. One of the main advantages of this book is the unique integrated approach to building a system for training aviation personnel in the field of technical operation of radio-electronic equipment and air traffic control, which consists in taking into account various factors that affect the training of specialists, promising areas of development of civil aviation based on the analysis of various guidance documents and the construction of mathematical models that give a qualitative assessment of existing methods and the proposed new methodology. The book contains a large amount of visual illustrative material showing the existing structure of the system of training in the field of civil aviation.

Progress in Sustainable Aviation looks at recent progress and new technological developments in sustainable aviation, presenting readers with engineering solutions and methodologies for efficiency and cost savings, performance improvement, and emission reduction. Coverage includes alternative fuel types, propulsion technologies, and emission technologies used in different aerial vehicles, such as unmanned aerial vehicles, drones, and passenger aircraft. Operational areas, such as the building of green airports, commercial air transport, and maintenance management are also addressed. This collection will be a valuable reference for researchers, practicing engineers, scientists, and students working in the area of sustainable aviation technology and management.Looks at recent progress in sustainable aviation technologies;Presents alternative aviation fuel types and propulsion technologies;Includes case studies and practical applications.

The ground segment is the fundamental backbone of every satellite project, yet it is usually not visible to the public or the end user of a satellite service. Also the bulk of existing published space literature tends to focus on the satellite or its subsystems. This book tries to fill this gap and addresses systems engineering concepts applied to the design, development, qualification, and deployment of the ground control segment required to operate a single satellite, a constellation, or even a manned space vehicle.The domain of ground segment engineering has significantly evolved in recent years, mainly driven by major advances in the IT sector. Hardware virtualisation or the availability of on-demand cloud computing services are typical examples of new technologies that have changed fundamental architectural concepts previously standard in heritage ground segments. Furthermore, the stark increase of cyber attacks - today a major risk to almost all critical IT based infrastructure - has made a cyber threat resilient architecture to become one of the indispensable design requirements for ground segment engineers. The new mega constellations recently put into space deploying up to several hundred of flying objects have put very demanding needs on the ground segment for automated satellite operations. These topics and more are addressed in the book's chapters, along with a detailed explanation of the most relevant components of a typical ground segment architecture. The basic functional requirements, design features, and the most important ground and space segment interfaces are addressed and explained in detail, supported by a wealth of figures for easier understanding.This book is kept at an introductory level, allowing newcomers to get familiar with this fairly complex subject matter. It is therefore suitable for graduate students, but can equally serve as a valuable source of information for already experienced space engineers who seek to gain a deeper understanding of the ground segment infrastructure and related systems engineering processes. It can also help project managers to better interact with their systems engineers, satellite developers to define their ground segment interfaces, and satellite operators to improve their flight and ground procedures. It is very well suited for everyone intending to start a career in satellite ground segment systems engineering.

"This book introduces readers to the rich history and physics of galaxies, describing what we know about these systems as well as the mysteries we are still trying to solve"--

Tycho Brahe var en af grundlæggerne af den moderne videnskab om rummet, og i dag får danske forskere international opmærksomhed inden for centrale områder som Big Bang-teorien, stjerne- og planetdannelse, exoplaneter og astrobiologi. Der er dansk teknologi med på Marsmissioner og på rumteleskoper. Et dansk firma har udviklet en motionscykel til Den Internationale Rumstation, ISS, og danske arkitekter arbejder med Marsbaser, der skal bygges med 3D-print. Podcast-værterne Tina Ibsen og Anders Høeg Nissen fortæller levende om Danmarks indsats i rumforskningen og interviewer forskere, ingeniører, forretningsfolk og en enkelt astronaut. Udgivelsen er en storskrift-udgave til svagsynede i serien MAGNUMBØGER Lindhardt og Ringhof.