A Course Of Experiments With He-Ne Lasers PDF Download
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Author: R. S. Sirohi
Publisher: New Age International
ISBN: 9788122403114
Category : Helium-neon lasers
Languages : en
Pages : 124
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Book Description
The Book Contains A Number Of Experiments In Optics That Can Be Performed With Ease Using He-Ne-Laser. Some Of The Experiments Are Visually Impressive And Aid In The Understanding Of Physical Phenomena. Further The Experiments Can Be Demonstrated To A Large Audience. The Experiments In Interference, Diffraction, Polarisation, Spatial Filtering Etc. Fall Under This Group.There Are Then Experiments Which Have Relevance To Measurements. The Experiments On Diffraction, Holography, Speckle Phenomenon, Flow Etc. Fall In This Category. These Experiments Will Be Useful To The Students Both In Science And Engineering. In Brief The Book Provides Various Possibilities Of Using A He-Ne Laser In The Laboratory.
Author: Bruce Barnhart
Publisher: Taylor & Francis
ISBN: 1000832139
Category : Art
Languages : en
Pages : 155
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Book Description
Temporal Experiments: Seven Ways of Configuring Time in Art and Literature conducts an expansive exploration of different modes of timing. Its seven chapters pursue the question of time as it is embodied in key figures that shape both aesthetic and pragmatic life. Working closely with literary, visual, and musical artworks, the book aims to provoke new ways of engaging with the question of time. It treats artworks as experiments that launch temporal figures, and that test out the possibilities and connections these different figures enable. Thus, the book seizes upon works by artists like Anne Carson, King Tubby, and Raymond Queneau as opportunities for thinking through the valence of both existing and untested temporal configurations. What other modes of shaping time, it asks, might be conjured out of the viewing of an Omer Fast film, the reading of a poem by Baudelaire, or of a novel by Tom McCarthy? In treating artworks as temporal experiments, this book stresses the fact that artworks always experiment with the raw materials of time, fashioning it or refashioning it into novel combinations. This book follows the imperatives of these experiments in order to advance a nuanced understanding of the way time insinuates itself into all aspects of social and intellectual life.
Author: John William Dunne
Publisher:
ISBN:
Category : Time
Languages : en
Pages : 226
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Book Description
Author: R.A. Wever
Publisher: Springer Science & Business Media
ISBN: 1461261422
Category : Medical
Languages : en
Pages : 285
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Book Description
Biological rhythmicity has been a subject of scientific research for a relatively short time. In the special case of daily, or circadian rhythms, it is only during the past twenty years that rapidly increasing efforts have been undertaken in evaluat ing properties and mechanisms. As a consequence of these efforts, the study of biological and, in particular, circadian rhythmicity is no longer a somewhat dubious occupation but rather a serious branch of science which combines the interdisciplinary efforts of numerous researchers around the world. The general result of these efforts is that many features of circadian rhythms of many different species of living beings are well known today. In addition to studies with lower organisms, the evaluation of human circadian rhythms was originally more or less a compulsory exercise done in order to extend the "catalogue of species"; of course, the work was of unusual impor tance due to the special position of man in biology. In the course of the very first experimental series, it became clear that humans possess an "internal clock" as had been established in various organisms, protists, plants, and animals, and that human circadian rhythms fit the general regularities of biological rhythms known at that time. However, it soon became apparent that circadian rhythmicity of man shows, additionally, particularities of great general interest, for practical and theoretical reasons.
Author:
Publisher:
ISBN:
Category : Psychology
Languages : en
Pages : 350
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Book Description
Author: Dürr, Fabian
Publisher: KIT Scientific Publishing
ISBN: 3731513145
Category :
Languages : en
Pages : 248
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Book Description
The understanding and interpretation of complex 3D environments is a key challenge of autonomous driving. Lidar sensors and their recorded point clouds are particularly interesting for this challenge since they provide accurate 3D information about the environment. This work presents a multimodal approach based on deep learning for panoptic segmentation of 3D point clouds. It builds upon and combines the three key aspects multi view architecture, temporal feature fusion, and deep sensor fusion.
Author: Ian Neath
Publisher: Psychology Press
ISBN: 9780863776533
Category : Psychology
Languages : en
Pages : 208
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Book Description
This special issue of the International Journal of Psychology had its origins in the Quebec 98 Conference on Short-Term Memory, held in Quebec City, Canada, in June 1998. Following this conference, participants were invited to submit contributions based on, and expanding upon, their presentation at this conference. The enthusiastic response made it possible to collect the exciting selection of articles that you will find herein. It must be noted that because of the finite journal space available, the editors and reviewers were faced with the difficult problem of selecting only a limited number of the excellent articles that were submitted. The outcome of this process is this special issue, which we believe provides an up-to-date overview of current research on short-term/working memory, including the challenges, controversies, and recent theoretical advances in this field.
Author: Anne Giersch
Publisher: Frontiers Media SA
ISBN: 2832538878
Category : Science
Languages : en
Pages : 75
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Book Description
There is a gap between the concept of time in physics and that in neuroscience. Human time is dynamic and involves a dynamic ‘flow,’ whereas physical time is said to be “frozen" as in Einstein’s Block Universe. The result has been a fierce debate as to which time is ‘real’. Our recently accepted paper by Frontiers provides a compromise, dualistic view. The claim is that within the cranium there already exists an overlooked, complete, and independent physical system of time, that is compatible with the essence of modern spacetime cosmology. However, the brain through a process of evolution developed a complementary illusory system that provides a supplementary, more satisfying experience of temporal experiences that leads to better adaptive behavior. The Dualistic Mind View provides evidence that both systems of time exist and are not competitive. Neither need be denigrated.
Author: Gunnar Jansson
Publisher: Psychology Press
ISBN: 1134785615
Category : Psychology
Languages : en
Pages : 590
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Book Description
Beginning with his doctoral dissertation in 1950 which introduced the study of event perception and the application of vector analysis to perception, Gunnar Johansson has been a seminal figure in the field of perception. His work on biomechanical motion in the 1970s challenged conventional notions and stimulated great interest among experimental psychologists and students of machine vision. In 1989 Johansson published his latest theoretical synthesis, the optic sphere theory, an innovative conceptualization that goes beyond his earlier proposals. This volume presents -- for the first time -- an extensive precis of the out-of-print classic 1950 monograph prepared by Johansson. It also includes a representative set of Johansson's important publications produced over the ensuing four decades. These papers served as the springboard for a set of original essays by a distinguished group of North American and European scientists. Part critical commentary, part elaboration, and part seeking new directions, the entire collection makes for a singularly rich treatment of the perception of objects and events.
Author: Kia Nobre
Publisher:
ISBN: 0199563454
Category : Medical
Languages : en
Pages : 478
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Book Description
Our ability to attend selectively to our surroundings - taking notice of the things that matter, and ignoring those that don't - is crucial if we are to negotiate the world around us in an efficient manner. Several aspects of the temporal dimension turn out to be critical in determining how we can put together and select the events that are important to us as they themselves unfold over time. For example, we often miss events that happen while we are occupied perceiving or responding to another stimulus. On the other hand, temporal regularity between events can also greatly improve our perception. In addition, our perception of the passage of time itself can also be distorted as while we are performing actions or paying attention to different aspects of the environment. Surprisingly, this fascinating and fundamental interplay between ' attention' and 'time' has been relatively neglected in the psychology and neuroscience literatures until very recently. Attention & Time is the first book to address this foundational topic, bringing together several intriguing and hitherto fragmented findings into a compelling and cohesive field of enquiry. The book contains thirty-one critical-review chapters from internationally recognised experts in the field, carefully organised into three stand-alone, yet extensively cross-referenced, themed sections. Each section focuses on distinct ways in which attention and time influence one another. These sections, each encompassing a range of methodologies from classical cognitive psychology to single-cell neurophysiology, provide functionally unifying frameworks to help guide the reader through the many various experimental and theoretical approaches adopted. Section 1 considers variations of attention across time, and explores how attentional allocation is limited by very short or very long intervals of time. Section 2 describes several types of temporal illusion, illustrating how attention can modulate the perception of the passage of time itself. "A watched pot never boils" and, conversely, "time flies when you're having fun" nicely capture the experimental observation that the degree of attention allocated to stimulus timing contributes to its subjective duration. Finally, Section 3 examines how attention can be directed in time, to predictable or expected moments in time, so as to optimise behaviour. Bringing conceptually discrete, yet functionally related, fields of temporal attention research together within a single volume, this book provides a comprehensive overview that will be of value to the interested novice in cognitive neuroscience, whilst also inspiring experts in the field to make, perhaps previously overlooked, links with their own field of research.
Author: Adam Barrows
Publisher: Univ of California Press
ISBN: 0520948157
Category : Literary Criticism
Languages : en
Pages : 450
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Book Description
Combining original historical research with literary analysis, Adam Barrows takes a provocative look at the creation of world standard time in 1884 and rethinks the significance of this remarkable moment in modernism for both the processes of imperialism and for modern literature. As representatives from twenty-four nations argued over adopting the Prime Meridian, and thereby measuring time in relation to Greenwich, England, writers began experimenting with new ways of representing human temporality. Barrows finds this experimentation in works as varied as Victorian adventure novels, high modernist texts, and South Asian novels—including the work of James Joyce, Virginia Woolf, H. Rider Haggard, Bram Stoker, Rudyard Kipling, and Joseph Conrad. Demonstrating the investment of modernist writing in the problems of geopolitics and in the public discourse of time, Barrows argues that it is possible, and productive, to rethink the politics of modernism through the politics of time.
