Lasers are essential to an incredibly large number of applications. Today, they …
Lasers are essential to an incredibly large number of applications. Today, they are used in bar code readers, compact discs, medicine, communications, sensors, materials processing, computer printers, data processing, 3D-imaging, spectroscopy, navigation, non-destructive testing, chemical processing, color copiers, laser "shows", and in the military. There is hardly a field untouched by the laser. But what exactly is so unique about lasers that makes them so effective? This brief video course is designed for engineers, scientists, medical personnel, managers, and others who work with lasers and/or fiberoptics, or who anticipate working with lasers and/or fiberoptics, yet have little or no background in laser or fiberoptic basics. The course focuses on fundamentals and emphasizes a physical intuitive interpretation of laser and fiberoptic phenomena and their applications. Because Prof. Ezekiel keeps mathematics to a minimum, the topics covered are easily understood, without the need for a strong technical background. Prof. Ezekiel uses plain language, graphic illustrations, and video demonstrations to explain the basic characteristics of lasers and fiberoptics. High quality versions of the videos are also available through Zeelase. These videos were produced by the MIT Center for Advanced Engineering Study.
This activity helps students understand how a LEGO MINDSTORMS(TM) NXT robot moves …
This activity helps students understand how a LEGO MINDSTORMS(TM) NXT robot moves using motors and wheels. Then students relate the concepts of decision-making actuation and motion in humans to their parallels in mechanized robots, and understand the common themes associated with movement.
You will learn the physics behind nuclear science, how to gain energy …
You will learn the physics behind nuclear science, how to gain energy from nuclear fission, how nuclear reactors operate safely, and the life cycle of nuclear fuel: from mining to disposal. In the last part of the course, we will focus on what matters most in the public debate: the economic and social impact of nuclear energy but also the future of energy systems.
This text is a practical guide for linguists, and programmers, who work …
This text is a practical guide for linguists, and programmers, who work with data in multilingual computational environments. We introduce the basic concepts needed to understand how writing systems and character encodings function, and how they work together at the intersection between the Unicode Standard and the International Phonetic Alphabet. Although these standards are often met with frustration by users, they nevertheless provide language researchers and programmers with a consistent computational architecture needed to process, publish and analyze lexical data from the world's languages. Thus we bring to light common, but not always transparent, pitfalls which researchers face when working with Unicode and IPA. Having identified and overcome these pitfalls involved in making writing systems and character encodings syntactically and semantically interoperable (to the extent that they can be), we created a suite of open-source Python and R tools to work with languages using orthography profiles that describe author- or document-specific orthographic conventions. In this cookbook we describe a formal specification of orthography profiles and provide recipes using open source tools to show how users can segment text, analyze it, identify errors, and to transform it into different written forms for comparative linguistics research.
The basic objective of Unified is to give a solid understanding of …
The basic objective of Unified is to give a solid understanding of the fundamental disciplines of aerospace engineering, as well as their interrelationships and applications. These disciplines are Materials and Structures (M); Computers and Programming (C); Fluid Mechanics (F); Thermodynamics and Propulsion (T); and Signals and Systems (S). In choosing to teach these subjects in a unified manner, we seek to explain the common intellectual threads in these disciplines, as well as their combined application to solve engineering Systems Problems (SP). Throughout the year we will endeavor to point out the connections among the disciplines.
Students practice the ability to produce clear, complete, accurate and detailed design …
Students practice the ability to produce clear, complete, accurate and detailed design drawings through an engineering design challenge. Using only the specified materials, teams are challenged to draw a design for a wind-powered car. Then, they trade engineering drawings with another group and attempt to construct the model cars in order to determine how successfully the original design intentions were communicated through sketches, dimensions and instructions.
Students learn how the endocrine system works and compare it to the …
Students learn how the endocrine system works and compare it to the mail delivery system. Students discuss the importance of communication in human body systems and relate that to engineering and astronauts.
Unmanned Aircraft Systems (UAS) are an integral part of the US national …
Unmanned Aircraft Systems (UAS) are an integral part of the US national critical infrastructure. They must be protected from hostile intent or use to the same level as any other military or commercial asset involved in US national security. However, from the Spratly Islands to Djibouti to heartland America, the expanding Chinese Unmanned Aircraft Systems (UAS / Drone) industry has outpaced the US technologically and numerically on all fronts: military, commercial, and recreational.
Both countries found that there were large information security gaps in unmanned systems that could be exploited on the international cyber-security stage. Many of those gaps remain today and are direct threats to US advanced Air Assets if not mitigated upfront by UAS designers and manufacturers. The authors contend that US military / commercial developers of UAS hardware and software must perform cyber risk assessments and mitigations prior to delivery of UAS systems to stay internationally competitive and secure.
The authors have endeavored to bring a breadth and quality of information to the reader that is unparalleled in the unclassified sphere. This book will fully immerse and engage the reader in the cyber-security considerations of this rapidly emerging technology that we know as unmanned aircraft systems (UAS). Topics covered include National Airspace (NAS) policy issues, information security, UAS vulnerabilities in key systems (Sense and Avoid / SCADA), collision avoidance systems, stealth design, intelligence, surveillance and reconnaissance (ISR) platforms; weapons systems security; electronic warfare considerations; data-links, jamming operational vulnerabilities and still-emerging political scenarios that affect US military / commercial decisions.
The airplanes unit begins with a lesson on how airplanes create lift, …
The airplanes unit begins with a lesson on how airplanes create lift, which involves a discussion of air pressure and how wings use Bernoulli's principle to change air pressure. Next, students explore the other three forces acting on airplanes thrust, weight and drag. Following these lessons, students learn how airplanes are controlled and use paper airplanes to demonstrate these principles. The final lessons addresses societal and technological impacts that airplanes have had on our world. Students learn about different kinds of airplanes and then design and build their own balsa wood airplanes based on what they have learned.
This is a peer-reviewed chapter in an open access book, ADHD. This …
This is a peer-reviewed chapter in an open access book, ADHD. This chapter provides an overview of complementary and alternative medicine (CAM) and its relevance in psychiatric practice for the use of natural health products in the treatment of ADHD. Several botanical agents, nutritional interventions and supplements are reviewed. Results of the reviewed human clinical trials are presented in a concise tabular format. Methods, results, proposed mechanism of action, safety and efficacy are all addressed. The chapter is accurate, relevant, and clear. It is extensively referenced and is still relevant today even though more up-to-date literature reviews are available. It is a technical reading that is best suited to nurses, physicians, nutritionists, mental health workers and other allied health professionals at both the undergraduate and graduate level.
For many years, Cambridge, MA, as host to two major research universities, …
For many years, Cambridge, MA, as host to two major research universities, has been the scene of debates as to how best to meet the competing expectations of different stakeholders. Where there has been success, it has frequently been the result, at least in part, of inventive urban design proposals and the design and implementation of new institutional arrangements to accomplish those proposals. Where there has been failure it has often been explained by the inability - or unwillingness - of one stakeholder to accept and accommodate the expectations of another. The two most recent fall Urban Design Studios have examined these issues at a larger scale. In 2001 we looked at the possible patterns for growth and change in Cambridge, UK, as triggered by the plans of Cambridge University. And in 2002 we looked at these same issues along the length of the MIT 'frontier' in Cambridge, MA as they related to the development of MIT and the biotech research industry. In the fall 2003 Urban Design Studio we propose to focus in on an area adjacent to Cambridgeport and the western end of the MIT campus, roughly centered on Fort Washington. Our goal is to discover the ways in which good urban form, an apt mix of activities, and effective institutional mechanisms might all be brought together in ways that respect shared expectations and reconcile competing expectations - perhaps in unexpected and adroit ways.
This is a seminar about the ways that urban design contributes to …
This is a seminar about the ways that urban design contributes to the distribution of political power and resources in cities. "Design," in this view, is not some value-neutral aesthetic applied to efforts at urban development but is, instead, an integral part of the motives driving that development. The class investigates the nature of the relations between built form and political purposes through close examination of a wide variety of situations where public and private sector design commissions and planning processes have been clearly motivated by political pressures, as well as situations where the political assumptions have remained more tacit. We will explore cases from both developed and developing countries.
This course is a requirement for completion of the Urban Design Certificate …
This course is a requirement for completion of the Urban Design Certificate Program. It investigates the complex nature of 'successful' urban design, and attempts to identify and evaluate examples of urban design that are at the leading edge of practice, anticipating the future. The seminar will deal with two parallel questions: What are the key trends that will shape the future form and function of cities? and how will these changes affect the role of the urban designer? The first part of the seminar focuses on the present, and the second part of the semester will consider the future. After the course surveys the landscape of contemporary urban design practice, the challenge it will pose to students will be to identify the trajectory of cities and city design from both physical and social perspectives.
An introduction to the methods of recording, evaluating, and communicating about the …
An introduction to the methods of recording, evaluating, and communicating about the urban environment. Through visual observation, field analysis, measurements, interviews, and other means, students learn to draw on their senses and develop their ability to deduce, conclude, question, and test conclusions about how the environment is used and valued. Through the use of representational tools such as drawing, photographing, computer modeling and desktop publishing, students communicate what is observed as well as their impressions and ideas. Intended as a foundation for future studio work in urban design.
The design of urban environments. Strategies for change in large areas of …
The design of urban environments. Strategies for change in large areas of cities, to be developed over time, involving different actors. Fitting forms into natural, man-made, historical, and cultural contexts; enabling desirable activity patterns; conceptualizing built form; providing infrastructure and service systems; guiding the sensory character of development. Involves architecture and planning students in joint work; requires individual designs or design and planning guidelines.
Are you an urban planner, designer, policy maker or involved or interested …
Are you an urban planner, designer, policy maker or involved or interested in the creation of good living environments?
This course will broaden your scope and diversify your take on the field of urban planning and design. We will focus on a unique Dutch approach and analyze how it can help those involved with urban planning and design to improve the physical environment in relation to the public good it serves, including safety, wellbeing, sustainability and even beauty.
You will learn some of the basic traits of Dutch Urbanism, including its:
contextual approach; balance between research and design; simultaneous working on multiple scale levels. You will practice with basic techniques in spatial analysis and design pertaining to these points. You will also carry out these activities in your own domestic environment.
This course is taught by the Faculty of Architecture and the Built Environment at TU-Delft, ranked no. 4 in Architecture/Built Environment on the QS World University Rankings (2016).
All the material in this course is presented at entry level. But since the course has an integral perspective, combining planning and design aspects, it can still be relevant for trained professionals who feel they lack experience in either field.
This class presents an analysis of the development of housing models and …
This class presents an analysis of the development of housing models and their urban implications in Paris, London, and New York City from the seventeenth century to the present. The focus will be on three models: the French hotel, the London row house, and the New York City tenement and apartment building. Other topics covered will include twentieth-century housing reform movements and work by the London County Council, CIAM, and American public housing agencies.
Engineers design and implement many creative techniques for managing stormwater at its …
Engineers design and implement many creative techniques for managing stormwater at its sources in order to improve and restore the hydrology and water quality of developed sites to pre-development conditions. Through the two lessons in this unit, students are introduced to green infrastructure (GI) and low-impact development (LID) technologies, including green roofs and vegetative walls, bioretention or rain gardens, bioswales, planter boxes, permeable pavement, urban tree canopies, rainwater harvesting, downspout disconnection, green streets and alleys, and green parking. Student teams take on the role of stormwater engineers through five associated activities. They first model the water cycle, and then measure transpiration rates and compare native plant species. They investigate the differences in infiltration rates and storage capacities between several types of planting media before designing their own media mixes to meet design criteria. Then they design and test their own pervious pavement mix combinations. In the culminating activity, teams bring together all the concepts as well as many of the materials from the previous activities in order to create and install personal rain gardens. The unit prepares the students and teachers to take on the design and installation of bigger rain garden projects to manage stormwater at their school campuses, homes and communities.
This course makes up the second half of a year-long seminar on …
This course makes up the second half of a year-long seminar on Joint Fact Finding in Science-Intensive Disputes. In 11.941, the first half of the seminar, students analyzed and discussed cases that involved or that should have involved Joint Fact Finding of various kinds. In this portion, students concentrate on gathering information to assist in resolving the Cape Wind project, the dispute concerning the placement of wind farms in waters adjacent to Nantucket. Students will lay the groundwork for a collaborative project that includes Federal and State agencies, academic institutions and non-profits.
Students obtain basic knowledge of the multidisciplinary aspects of the use of …
Students obtain basic knowledge of the multidisciplinary aspects of the use of undergrounds space. Based on knowledge about the characteristics of several construction technologies they are able to asses their applicability in different situations. This may be different geological or physical conditions. They are able to analyze and structure the complex decision making process that is related to the use of underground space and define an integral approach
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