Download or read book Computing with Spatial Trajectories written by Yu Zheng and published by Springer Science & Business Media. This book was released on 2011-10-02 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial trajectories have been bringing the unprecedented wealth to a variety of research communities. A spatial trajectory records the paths of a variety of moving objects, such as people who log their travel routes with GPS trajectories. The field of moving objects related research has become extremely active within the last few years, especially with all major database and data mining conferences and journals. Computing with Spatial Trajectories introduces the algorithms, technologies, and systems used to process, manage and understand existing spatial trajectories for different applications. This book also presents an overview on both fundamentals and the state-of-the-art research inspired by spatial trajectory data, as well as a special focus on trajectory pattern mining, spatio-temporal data mining and location-based social networks. Each chapter provides readers with a tutorial-style introduction to one important aspect of location trajectory computing, case studies and many valuable references to other relevant research work. Computing with Spatial Trajectories is designed as a reference or secondary text book for advanced-level students and researchers mainly focused on computer science and geography. Professionals working on spatial trajectory computing will also find this book very useful.

Download or read book Trajectory written by David Rooy, Ph.D. and published by AMACOM. This book was released on 2014-05-13 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Career success has never happened overnight, but you can still be confident in your big-picture path to being successful. Trust the trajectory that has been laid out just for you! Too often, people focus on the short term–mere survival--because they remain caught between a fear of failure and a desire for instant success, which results in limited risk-taking but also limiting their opportunities. As much as they want to get ahead, they simply can’t see how to get there. They don’t see how their current position is not merely a dead-end trap but actually a springboard to their next position--or even the one after that. Business author David Van Rooy wants you to know that the key is to have faith in your trajectory. He says that every person has their own career path--and this timely and refreshingly practical book presents seven strategies designed to help anyone create and manage theirs. In Trajectory, you will discover how to: Make the most of feedback Avoid stagnation and break through plateaus Achieve growth through failure Move to the front of the pack through persistence Continuously develop both “soft” and “hard” professional skills You don’t need to start over! Just discover where you currently are on your career trajectory. From building relationships with mentors, to positioning (and repositioning) yourself for promotion, Trajectory provides the tools you need for a lifetime of advancement.

Download or read book Post PhD Career Trajectories written by Lynn McAlpine and published by Springer. This book was released on 2016-08-03 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book argues that post-PhD career planning should ideally begin at the same time as the PhD itself. Drawing from ten years of research and stories of close to 50 individuals, each chapter focuses on the stories of individuals who share common career intentions and how they negotiate these both before, during and after their studies. Each career trajectory is different as individuals planned and made decisions in the face of both expected and unexpected work, personal experiences and responsibilities. The book concludes with resources to help those who are currently planning or reflecting on their own career trajectories.

Download or read book Multiple Gravity Assist Interplanetary Trajectories written by OV Papkov and published by Routledge. This book was released on 2017-11-01 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the results of twenty years; experience in the field of multipurpose flights, this monograph includes the complex routes of the trajectories of a number of bodies (e.g., space vehicles, comets) in the solar system. A general methodological approach to the research of flight schemes and the choice of optimal performances is developed. Additionally, a number of interconnected methods and algorithms used at sequential stages of such development are introduced, which allow the selection of a rational multipurpose route for a space vehicle, the design of multipurpose orbits, the determination of optimal space vehicle design, and ballistic performances for carrying out the routes chosen. Other topics include the practical results obtained from using these methods, navigation problems, near-to-planet orbits, and an overview of proven and new flight schemes.

Download or read book Trajectories and Imaginaries in Migration written by Felicitas Hillmann and published by Routledge. This book was released on 2018-09-03 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book draws attention to the various factors that characterize migrant flows and mobilities, calling into question familiar concepts such as push and pull, migration as a life project and sociocultural integration. It highlights processes such as fl exible migrant routes, temporary and return migration, mental aspects of migration processes and transnationalism, which are organised around the themes of shaping trajectories, frictions in space, and the migrant mental framework. It brings together work from scholars from Europe and beyond, with the contributions collected emphasizing the social and mental processes that underpin the migratory process, which can be seen as the ‘soft side’ of migration. Too often, this side is neglected when the governance of migration is discussed. The novel ideas expressed here also help to overcome the mechanistic view of migration as a push-pull event. Thus, the book suggests a different understanding of migration and mobility as relational, non-linear and fluid social processes, characterized by instability in migrant life trajectories. Emphasizing the fl exibility of migrants and migration and advocating the importance of emotionally charged, individual perceptions as central to migrant decision-making, it will appeal to scholars of sociology, anthropology, politics and geography with interests in migration and diaspora studies.

Download or read book Optimal Space Trajectories written by Jean-Pierre Marec and published by Elsevier. This book was released on 2012-12-02 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies in Astronautics, Volume 1: Optimal Space Trajectories focuses on the concept of optimal transfer and the problem of optimal space trajectories. It examines the relative performances of the various propulsion systems (classical and electrical propulsions) and their optimization (optimal mass breakdown), along with parametric and functional optimizations and optimal transfers in an arbitrary, uniform, and central gravitational field. Organized into 13 chapters, this volume begins with an overview of optimal transfer and the modeling of propulsion systems. It then discusses the Hohmann transfer, the Hoelker and Silber bi-elliptical transfer, and the deficiencies of parametric optimization. The book explains the canonical transformation, optimization of the thrust law using the Maximum Principle, and optimal orbit corrections. The time-free orbital transfers and time-fixed orbital transfers and rendezvous are also discussed. Moreover, this volume explains the classical high-thrust and electric low-thrust propulsion systems and rendezvous between two planets. This book is written primarily for engineers who specialize in aerospace mechanics and want to pursue a career in the space industry or space research. It also introduces students to the different aspects of the problem of optimal space trajectories.

Download or read book Urban Water Trajectories written by Sarah Bell and published by Springer. This book was released on 2016-10-22 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is an essential element in the future of cities. It shapes cities’ locations, form, ecology, prosperity and health. The changing nature of urbanisation, climate change, water scarcity, environmental values, globalisation and social justice mean that the models of provision of water services and infrastructure that have dominated for the past two centuries are increasingly infeasible. Conventional arrangements for understanding and managing water in cities are being subverted by a range of natural, technological, political, economic and social changes. The prognosis for water in cities remains unclear, and multiple visions and discourses are emerging to fill the space left by the certainty of nineteenth century urban water planning and engineering. This book documents a sample of those different trajectories, in terms of water transformations, option, services and politics. Water is a key element shaping urban form, economies and lifestyles, part of the ongoing transformation of cities. Cities are faced with a range of technical and policy options for future water systems. Water is an essential urban service, but models of provision remain highly contested with different visions for ownership of infrastructure, the scale of provision, and the level of service demanded by users. Water is a contentious political issue in the future of cities, serving different urban interests as power and water seem to flow in the same direction. Cities in Africa, Asia, Australia, Europe and South America provide case studies and emerging water challenges and responses. Comparison across different contexts demonstrates how the particular and the universal intersect in complex ways to generate new trajectories for urban water.

Download or read book Low Energy Lunar Trajectory Design written by Jeffrey S. Parker and published by John Wiley & Sons. This book was released on 2014-06-03 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on years of research conducted at the NASA Jet Propulsion Laboratory, Low-Energy Lunar Trajectory Design provides high-level information to mission managers and detailed information to mission designers about low-energy transfers between Earth and the moon. The book answers high-level questions about the availability and performance of such transfers in any given month and year. Low-energy lunar transfers are compared with various other types of transfers, and placed within the context of historical missions. Using this book, designers may reconstruct any transfer described therein, as well as design similar transfers with particular design parameters. An Appendix, “Locating the Lagrange Points,” and a useful list of terms and constants completes this technical reference. Surveys thousands of possible trajectories that may be used to transfer spacecraft between Earth and the moon, including transfers to lunar libration orbits, low lunar orbits, and the lunar surface Provides information about the methods, models, and tools used to design low-energy lunar transfers Includes discussion about the variations of these transfers from one month to the next, and the important operational aspects of implementing a low-energy lunar transfer Additional discussions address navigation, station-keeping, and spacecraft systems issues

Download or read book Your Trajectory Code written by Jeffrey Magee and published by John Wiley & Sons. This book was released on 2015-03-13 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get your entire life on track with an accelerated trajectory Your Trajectory Code is a guide to understanding why you are where you are, and not where you want to be — and how to change it. Once you understand what the trajectory code is, you can gain an accelerated understanding of yourself and others, including family members, friends, neighbors, colleagues, and anyone else. You'll be able to recognize how tiny 1% adjustments can significantly change your trajectory for the rest of your life. Your inner dialogue guides you along your trajectory, and this book will teach you the five fundamental types of people in your consciousness, and how they can either accelerate your rate of success or derail you straight into a trajectory of misery. We all have the opportunity to make decisions and guide what line or path we follow in life. One trajectory takes you toward greater accomplishments, while the other moves you in the direction of mediocrity and complacency. Understanding the trajectory code and line is what separates winners from losers, and Your Trajectory Code shows you how. Gain a deeper understanding of yourself and others Make tiny adjustments that have a big impact Discover who in your life might hold you back Steer your trajectory toward achievement and success The path of your life is not predetermined. You have control, and it's never to late to make the changes that could bring you greater happiness. Have you settled for "good enough" long enough? Are you ready to rock the boat? Your Trajectory Code is the key to figuring out what needs to change, and how to change it to point your trajectory skyward.

Download or read book Differentially Flat Systems written by Hebertt Sira-Ramírez and published by CRC Press. This book was released on 2018-10-03 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrating the power, simplicity, and generality of the concept of flatness, this reference explains how to identify, utilize, and apply flatness in system planning and design. The book includes a large assortment of exercises and models that range from elementary to complex classes of systems. Leading students and professionals through a vast array of designs, simulations, and analytical studies on the traditional uses of flatness, Differentially Flat Systems contains an extensive amount of examples that showcase the value of flatness in system design, demonstrate how flatness can be assessed in the context of perturbed systems and apply static and dynamic feedback controller design techniques.

Download or read book Trajectories written by Kuan-Hsing Chen and published by Routledge. This book was released on 2005-10-05 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trajectories brings together cultural theorists not only from countries with a known historical critical tradition such as America, Canada and Australia but from the East-Asia locations of Hong Kong, Korea, Singapore, Taiwan, Philippines, India and Thailand. It constitutes a critical confrontation between the imperial and colonial co-ordinates of north and south, east and west. Without rejecting the Anglo-American practices of cultural studies, the contributors present critical cultural studies as an internationalist and decolonized project. Trajectories links critical energies together and charts future directions of the discipline. The contributors discuss subjects such as Japanese colonial discourse, cultural studies out of Europe, Chinese nationalism in the context of global capitalism, white panic, stories from East Timor, queer life in Taiwan and new social movements in Korea. The book ends with an interview with Stuart Hall.

Download or read book Spacecraft Trajectory Optimization written by Bruce A. Conway and published by Cambridge University Press. This book was released on 2010-08-23 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a long-overdue volume dedicated to space trajectory optimization. Interest in the subject has grown, as space missions of increasing levels of sophistication, complexity, and scientific return - hardly imaginable in the 1960s - have been designed and flown. Although the basic tools of optimization theory remain an accepted canon, there has been a revolution in the manner in which they are applied and in the development of numerical optimization. This volume purposely includes a variety of both analytical and numerical approaches to trajectory optimization. The choice of authors has been guided by the editor's intention to assemble the most expert and active researchers in the various specialities presented. The authors were given considerable freedom to choose their subjects, and although this may yield a somewhat eclectic volume, it also yields chapters written with palpable enthusiasm and relevance to contemporary problems.

Download or read book A Compilation of Current Computer Programs for Low thrust Trajectory Analysis written by Alfred C. Mascy and published by . This book was released on 1969 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides a catalogue of brief descriptions of current lowthrust trajectory and mass computation programs. All known sources were contacted, and questionnaires were sent to those who indicated that they possessed such codes.

Download or read book NASA Technical Note written by and published by . This book was released on 1972 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Leadership Trajectory written by Patricia S. Yoder-Wise and published by Elsevier Health Sciences. This book was released on 2020-08-16 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to help you excel at every stage of your leadership path, this unique and practical text is organized around a nursing and health care leadership trajectory of three core areas — The Strategies, The Personal, and The Environment. The Strategies covers necessary actions that you need to take to become more influential in any environment to move yourself and your people to greater contributions. The Personal relates to the concepts that you must develop and hone to increase your influence. The Environment reinforces how you can exercise the strategies and personal factors in this leadership model through assessing the situations in which you find yourself. - Reflection questions in each chapter emphasize the importance of the process being discussed as a strategy for growth and to facilitate active reading. - LL Alert! boxes cite examples of actions and statements to avoid. - LL Lineup summaries at the end of each chapter help you create an action plan related to the chapter topic. - Practical approach features straightforward, concise content that addresses only the most relevant information on the subject of each chapter. - The Strategies covers necessary actions that you need to take to become more influential in any environment to move yourself and your people to greater contributions. - The Personal relates to the concepts that you must develop and hone to increase your influence. - The Environment reinforces how you can exercise the strategies and personal factors in this model through assessing the situations in which you find yourself.

Download or read book Lunar and Interplanetary Trajectories written by Robin Biesbroek and published by Springer. This book was released on 2015-12-23 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with a clear description of the types of lunar and interplanetary trajectories, and how they influence satellite-system design. The description follows an engineering rather than a mathematical approach and includes many examples of lunar trajectories, based on real missions. It helps readers gain an understanding of the driving subsystems of interplanetary and lunar satellites. The tables and graphs showing features of trajectories make the book easy to understand.

Download or read book Group Based Modeling of Development written by Daniel S. Nagin and published by Harvard University Press. This book was released on 2009-07-01 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a systematic exposition of a group-based statistical method for analyzing longitudinal data in the social and behavioral sciences and in medicine. The methods can be applied to a wide range of data, such as that describing the progression of delinquency and criminality over the life course, changes in income over time, the course of a disease or physiological condition, or the evolution of the socioeconomic status of communities. Using real-world research data from longitudinal studies, the book explains and applies this method for identifying distinctive time-based progressions called developmental trajectories. Rather than assuming the existence of developmental trajectories of a specific form before statistical data analysis begins, the method allows the trajectories to emerge from the data itself. Thus, in an analysis of data on Montreal school children, it teases apart four distinct trajectories of physical aggression over the ages 6 to 15, examines predictors of these trajectories, and identifies events that may alter the trajectories. Aimed at consumers of statistical methodology, including social scientists, criminologists, psychologists, and medical researchers, the book presents the statistical theory underlying the method with a mixture of intuition and technical development.