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 Free Download Jayadev S. Athreya, Howard Masur , "Translation Surfaces" English | ISBN: 147047655X, 9781470476557 | 2024 | 179 pages | PDF | 1,5 MB This textbook offers an accessible introduction to translation surfaces. Building on modest prerequisites, the authors focus on the fundamentals behind big ideas in the field: ergodic properties of translation flows, counting problems for saddle connections, and associated renormalization techniques. Proofs that go beyond the introductory nature of the book are deftly omitted, allowing readers to develop essential tools and motivation before delving into the literature.  Free Download Superhydrophobicity of Surfaces Dressed by Electrospun Fibers English | 2024 | ISBN: 3031555511 | 117 Pages | PDF EPUB (True) | 22 MB This book provides insights into the wetting behavior on fiber-dressed surfaces and guidelines for developing superhydrophobicity based on electrospinning. In developing superhydrophobicity, electrospinning possesses the following advantages over other fabrication techniques. First, the electrospun micro- and nanofibers, which may also featured with secondary fiber morphology, provide sufficient surface roughness for superhydrophobicity. Second, electrospinning is considered an additive manufacturing technique, so the surfaces to be modified are not destroyed for superhydrophobicity. Third, the introduced electrospun structure is featured with high porosity with inter-fiber pores, allowing for a high vapor transmission rate, which is necessary in many applications such as wound dressing, gas sensor.However, books focused on developing superhydrophobicity using electrospinning are rarely found. Electrospinning is only introduced as one section in most superhydrophobicity-related books, and the mechanism of superhydrophobicity by different electrospinning-based methods lacks detailed explanation.  Free Download Catalysis at Surfaces (De Gruyter Textbook) by Wolfgang Kleist English | July 24, 2023 | ISBN: 3110632470 | 708 pages | MOBI | 15 Mb Catalysis is at the heart of the chemical industry, which uses solid catalysts for the large-scale production of commodity chemicals. Catalysis at surfaces is also the basis for the ongoing transition to a sustainable energy supply, which requires molecules such as hydrogen, ammonia or methanol to store energy in chemical bonds, and environmental protection equally relies on heterogeneous catalysis.  Free Download Lionel Simonot, "Radiometry of Wet Surfaces: When Water Matters" English | ISBN: 2759829308 | 2023 | 128 pages | PDF | 11 MB As everyone can see every day, many objects or materials change their appearance when they get wet. Most of the time, the object becomes more translucent, its color darker and more chromatic. Beyond these general trends, is it possible to predict these changes in appearance for a given type of surface, and for a given humidity level? This is the question studied in this book, by drawing up a first inventory of available knowledge and ongoing research in multiple fields of application: in remote sensing, to correctly identify surfaces and estimate moisture content; in public lighting, to improve visibility on wet roads; in computer graphics, to render wet surfaces in a more realistic way...  Free Download Handbook of Self-Cleaning Surfaces and Materials: From Fundamentals to Applications English | 2023 | ISBN: 3527330968 | 754 Pages | PDF | 33 MB Self-cleaning surfaces are those that can be cleaned, for instance, by sun or rainwater, without human intervention. They are sometimes found in nature but developing man-made equivalents has been a major area of nanotechnology research in recent years. Self-cleaning tiles, glasses, paints, and textiles have been
 Free Download Reinforcement Learning for Reconfigurable Intelligent Surfaces: Assisted Wireless Communication Systems by Alice Faisal , Ibrahim Al-Nahhal , Octavia A. Dobre , Telex M. N. Ngatched English | PDF EPUB (True) | 2024 | 64 Pages | ISBN : 3031525531 | 6.8 MB This book presents the intersection of two dynamic fields: Reinforcement Learning (RL) and RIS- Assisted Wireless Communications. With an emphasis on both discrete and continuous problems, it introduces a comprehensive overview of RL techniques and their applications in the evolving world of RIS-assisted wireless communications. Chapter 1 introduces the fundamentals of RL and deep RL (DRL), providing a solid foundation for understanding subsequent chapters. It also presents the Q-learning, deep Q-learning, and deep deterministic policy gradient algorithms. Chapter 2 provides a holistic overview of RIS-assisted systems and details several use cases in wireless communications. Then, Chapters 3 and 4 present various applications of the discrete and continuous DRL to RIS-assisted wireless communications. From maximizing the sum-rate to minimizing, the system resources and maximizing the energy efficiency. These chapters showcase the versatility of the DRL algorithms in tackling a range of challenges. This book concludes with Chapter 5, which introduces the challenges and future directions in this field. It explores the particulars of hyperparameter tuning, problem design, and complexity analysis, while also highlighting the potential of hybrid DRL, multi-agent DRL, and transfer learning techniques for advancing wireless communication systems.  Free Download Capillary Surfaces: Shape - Stability - Dynamics, in Particular Under Weightlessness by Dieter Langbein English | PDF | 2002 | 373 Pages | ISBN : 3540418156 | 5.9 MB Even today flying into space is an undertaking at the borderline of what is curreiitly feasible. h veq complex assen~bly of sophist~icated machinery is needed in order to reach orbit and return from there to Eart,ll safely. A11 ast,ronaut knows that only if t,he rocket engines, inertial navigat,ion platforms. hydraulic systems; generators of electrical power, att,itude control systems, life support sj stems, coinput~ers. data transmission equipment, heat shields and many other components work flawlessly can he or she accomplish a mission in good llealt,h. I11 other words there is risk, but the odds are better than even. How else could a man or a woman see the incredible beauty of our planet Earth from a clist,ance? Take t,he combination of it,s colours. white and blue. It is so breatht,akingly stunning, that most likely not even a poet could find words to adequately describe it. There is the curved line of the horizon with an incredibly black slij above it. L4t first sight it is evident how elidless and empty the universe actually is. The Eart,h's horizon is fringed with a royal blue seam, our at,mosphere. Its beauty and fragility are thrilling, and seen from orbit it is instantly apparent that there is not much air around us.  Free Download Schoolism – Rendering Reflective Surfaces Scott Robertson | Duration: 9:14 h | Video: H264 1280x1024 | Audio: AAC 44,1 kHz 2ch | 7,76 GB | Language: English Rendering realistic-looking reflective surfaces can be a big challenge for any artist. In this course, master concept designer, Scott Robertson, will help you understand the underlying physics that influence all reflective surfaces, from shiny cars to a wet street. He will demonstrate how to add realism to your shiny surfaces and communicate surface changes to the viewer by manipulating the reflections themselves. "Rendering Reflective Surfaces with Scott Robertson" is available exclusively through Schoolism and consists of 9 lectures presented over 14 weeks. Homepage  Free Download Kiel Moe, "Thermally Active Surfaces in Architecture" English | ISBN: 156898880X | 2010 | 240 pages | PDF | 56 MB In the architecture profession's ongoing quest for sustainability, it is often the most fundamental practices that require rethinking. Thermally Active Surfaces in Architecture, the groundbreaking new study by 2009 Rome Prize-winning architect Kiel Moe, argues that water, with its higher density, is far better at capturing and channeling energy than air. By separating the heating and cooling of a building from its ventilation, the building's structure itself becomes the primary thermal system. This transformation of energy and building practices triggers a cascading set of possibilities for a building's health, structure, and durability. The first and only book of its kind, Thermally Active Surfaces in Architecture details ten contemporary case studies, from some of today's most innovative architects.  Free Download Minimal Surfaces and Functions of Bounded Variation by Enrico Giusti English | PDF | 1984 | 250 Pages | ISBN : 0817631534 | 11.6 MB The problem of finding minimal surfaces, i. e. of finding the surface of least area among those bounded by a given curve, was one of the first considered after the foundation of the calculus of variations, and is one which received a satis factory solution only in recent years. Called the problem of Plateau, after the blind physicist who did beautiful experiments with soap films and bubbles, it has resisted the efforts of many mathematicians for more than a century. It was only in the thirties that a solution was given to the problem of Plateau in 3-dimensional Euclidean space, with the papers of Douglas [DJ] and Rado [R T1, 2]. The methods of Douglas and Rado were developed and extended in 3-dimensions by several authors, but none of the results was shown to hold even for minimal hypersurfaces in higher dimension, let alone surfaces of higher dimension and codimension. It was not until thirty years later that the problem of Plateau was successfully attacked in its full generality, by several authors using measure-theoretic methods; in particular see De Giorgi [DG1, 2, 4, 5], Reifenberg [RE], Federer and Fleming [FF] and Almgren [AF1, 2]. Federer and Fleming defined a k-dimensional surface in IR" as a k-current, i. e. a continuous linear functional on k-forms. Their method is treated in full detail in the splendid book of Federer [FH 1]. |
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