Neutral Buoyancy

Autore: Tim Ecott
Editore: Grove Press
ISBN: 9780802139078
Grandezza: 55,76 MB
Formato: PDF, ePub
Vista: 7236

An illustrated journey into the world of undersea diving captures humankind's fascination with the wonders of the undersea world and the dramatic growth of recreational sport diving, discussing the history of the sport and offering fascinating accounts of the author's own adventures around the world. Reprint.

Simulation Of Gemini Extravehicular Tasks By Neutral Buoyancy Techniques

Autore: Otto F. Trout
Grandezza: 45,37 MB
Formato: PDF, Mobi
Vista: 2266

Weightlessness simulation of Gemini extravehicular tasks using neutral-buoyancy underwater techniques.

Design And Control Of A Vehicle For Neutral Buoyancy Simulation Of Space Operations

Autore: Joseph Douglas Graves
Grandezza: 60,53 MB
Formato: PDF, ePub, Mobi
Vista: 1432

Neutral Buoyancy Test Evaluation Of Hardware And Extravehicular Activity Procedures For On Orbit Assembly Of A 14 Meter Precision Reflector

Grandezza: 41,20 MB
Formato: PDF
Vista: 3711

The Effects Of Hypergravity And Microgravity On Biomedical Experiments

Autore: Thais Russomano
Editore: Morgan & Claypool Publishers
ISBN: 1598295780
Grandezza: 78,51 MB
Formato: PDF, Mobi
Vista: 759

Take one elephant and one man to the top of a tower and simultaneously drop. Which will hit the ground first?You are a pilot of a jet fighter performing a high-speed loop. Will you pass out during the maneuver?How can you simulate being an astronaut with your feet still firmly placed on planet Earth?In the aerospace environment, human, animal, and plant physiology differs significantly from that on Earth, and this book provides reasons for some of these changes. The challenges encountered by pilots in their missions can have implications on the health and safety of not only themselves but others. Knowing the effects of hypergravity on the human body during high-speed flight led to the development of human centrifuges. We also need to better understand the physiological responses of living organisms in space. It is therefore necessary to simulate weightlessness through the use of specially adapted equipment, such as clinostats, tilt tables, and body suspension devices.Each of these ideas, and more, is addressed in this review of the physical concepts related to space flights, microgravity, and hypergravity simulations. Basic theories, such as Newton’s law and Einstein’s principle are explained, followed by a look at the biomedical effects of experiments performed in space life sciences institutes, universities, and space agencies.Table of Contents: General Concepts in Physics - Definition of Physical Terms / The Effects of Hypergravity on Biomedical Experiments / The Effects of Microgravity on Biomedical Experiments / References

Structure And Emplacement Of High Level Magmatic Systems

Autore: Kenneth Thomson
Editore: Geological Society of London
ISBN: 9781862392564
Grandezza: 21,93 MB
Formato: PDF
Vista: 7221

This volume contains contributions on physical geology, igneous petrology, volcanology, structural geology, crustal mechanics and geophysics that cover the entire gambit of geological processes associated with the shallow emplacement of magma. High-level intrusions in sedimentary basins can also act as hydrocarbon reservoirs and as sources for thermal maturation.

Buoyancy Driven Flows

Autore: Eric Chassignet
Editore: Cambridge University Press
ISBN: 1107079993
Grandezza: 50,97 MB
Formato: PDF, Mobi
Vista: 2973

Buoyancy is one of the main forces driving flows on our planet, especially in the oceans and atmosphere. These flows range from buoyant coastal currents to dense overflows in the ocean, and from avalanches to volcanic pyroclastic flows on the Earth's surface. This book brings together contributions by leading world scientists to summarize our present theoretical, observational, experimental and modeling understanding of buoyancy-driven flows. Buoyancy-driven currents play a key role in the global ocean circulation and in climate variability through their impact on deep-water formation. Buoyancy-driven currents are also primarily responsible for the redistribution of fresh water throughout the world's oceans. This book is an invaluable resource for advanced students and researchers in oceanography, geophysical fluid dynamics, atmospheric science and the wider Earth sciences who need a state-of-the-art reference on buoyancy-driven flows.

Walking In Space

Autore: David Shayler
Editore: Springer Science & Business Media
ISBN: 9781852337100
Grandezza: 79,67 MB
Formato: PDF, Kindle
Vista: 9312

Over the past 35 years more than 100 individual astronauts and cosmonauts have performed nearly 200 EVAs, (spacewalks), either singularly or in teams in Earth orbit, deep space or on the Moon. In 'Walking in Space: Development of Space Walking Techniques' the author, Dave Shayler, shows how hardware and crew members are prepared for, protected and supported during every EVA. He demonstrates how past experiences have led to improved training techniques and how this, in turn, has provided many successes and future developments.


Autore: Iain M. Suthers
ISBN: 0643090584
Grandezza: 30,40 MB
Formato: PDF, ePub
Vista: 2784

A comprehensive introduction to the biology and ecology of plankton.

Concepts In Submarine Design

Autore: Roy Burcher
Editore: Cambridge University Press
ISBN: 9780521559263
Grandezza: 42,42 MB
Formato: PDF
Vista: 1884

This book shows how the engineering and architectural aspects of submarine design relate to each other, and describes the operational performance required of a vessel. The authors explain concepts of hydrodynamics, structure, powering and dynamics, in addition to architectural considerations that bear on the submarine design process. They pay particular attention to the interplay among these aspects of design, and devote a final chapter to the generation of the concept design for the submarine as a whole. Submarine design makes extensive use of computers, and the authors give examples of algorithms used in concept design. They provide engineering insight as well as an understanding of the intricacies of the submarine design process. The book will serve as a text for students and as a reference manual for practicing engineers and designers in marine and naval engineering.

Ammonoid Paleobiology

Autore: Neil H. Landman
Editore: Springer Science & Business Media
ISBN: 9780306452222
Grandezza: 37,30 MB
Formato: PDF, ePub, Docs
Vista: 9814

Renowned researchers summarize the current knowledge on ammonoid paleobiology. The book begins with a description of the systematic position of the Ammonoidea within the Cephalopoda, providing the phylogenetic framework for the rest of the book. Following discussions include soft- and hard-part morphology of ammonoids, rate of growth and ontogeny, and taphonomy and ecology. Closing chapters explore the distribution of ammonoids in time and space as well as their extinction at the end of the Cretaceous. With its diverse viewpoints and new material, this resource will benefit researchers and graduate students in paleontology, marine biology, and evolutionary biology.

Biology Of Fishes

Autore: Quentin Bone
Editore: Taylor & Francis
ISBN: 1134186304
Grandezza: 18,48 MB
Formato: PDF
Vista: 6464

The VitalBook e-book version of Biology of Fishes is only available only in the US and Canada at the present time. To purchase or rent please visit The Third Edition of Biology of Fishes is chiefly about fish as remarkably efficient machines for coping with the many problems that life in wat

Advances In Marine Biology

Editore: Academic Press
ISBN: 9780080579344
Grandezza: 41,30 MB
Formato: PDF, ePub, Mobi
Vista: 5112

Advances in Marine Biology

Human Missions To Mars

Autore: Donald Rapp
Editore: Springer Science & Business Media
ISBN: 3540729399
Grandezza: 67,78 MB
Formato: PDF, ePub, Mobi
Vista: 6597

This book presents a highly readable yet realistic view of the possibilities for human missions to Mars. It provides for the first time a ‘level-headed’ assessment of plans for human exploration of Mars to counteract the tendency of space agencies to take an over-optimistic approach to such interplanetary missions. The author presents a detailed analysis of why, in his opinion, the current NASA approach will fail to send humans to Mars before 2080.

Scuba Diving Explained

Autore: Lawrence Martin
Editore: Lawrence Martin
ISBN: 9780941332569
Grandezza: 79,59 MB
Formato: PDF, Docs
Vista: 7852


Autore: W. Bruce Saunders
Editore: Springer Science & Business Media
ISBN: 9789048132997
Grandezza: 36,37 MB
Formato: PDF
Vista: 3236

1. 1 Nautilus and Allonautilus: Two Decades of Progress W. Bruce Saunders Department of Geology Bryn Mawr College Bryn Mawr PA 19010 [email protected] edu Neil H. Landman Division of Paleontology American Museum of Natural History New York, New York 10024 [email protected] org When Nautilus: Biology and Paleobiology of a Living Fossil was published in 1987, it marked a milestone in cross-disciplinary collaboration. More than half of the contributing authors (36/65) were paleontologists, many of whom were collaborating with neontological counterparts. Their interest in studying this reclusive, poorly known animal was being driven by a search for clues to the mode of life and natural history of the once dominant shelled cephalopods, through study of the sole surviving genus. At the same time, Nautilus offered an opportunity for neontologists to look at a fundamentally different, phylogenetically basal member of the extant Cephalopoda. It was a w- win situation, combining paleontological deep-time perspectives, old fashioned expeditionary zeal, traditional biological approaches and new techniques. The results were cross-fertilized investigations in such disparate fields as ecology, functional morphology, taphonomy, genetics, phylogeny, locomotive dynamics, etc. As one reviewer of the xxxvi Introduction xxxvii book noted, Nautilus had gone from being one of the least known to one of the best understood of living cephalopods.

Oceanic Basalts

Autore: P.A. Floyd
Editore: Springer Science & Business Media
ISBN: 9401130426
Grandezza: 42,66 MB
Formato: PDF, Mobi
Vista: 2146

Basalt is the most voluminous of all the igneous rocks. Extensive field, experimental, petrographic and geochemical studies of basalt have provided us with a considerable understanding of igneous petrogenesis, plate tectonics, and crust-mantle interaction and exchange. One important aspect of geology that has developed over the last few decades is the study of oceanic basalts. The ocean basins cover about two thirds of the earth's surface and are floored by a basement of oceanic basalt that is continuously undergoing generation at spreading centres and destruction at subduction zones, a process which throughout geological time is recognized as the principal means of generating new crust. The study of oceanic basalts enables us to understand better the generation and recycling of crustal materials (including the continental crust), and the exchange between oceanic crust and seawater via hydrothermal activity. Compositional variations displayed by oceanic basalts provide windows into the mantle, and the identification of isotopically-distinct mantle reservoirs demonstrates that the source of oceanic basalts is heterogeneous and is controlled by convection and reservoir interactions within the mantle.

Diving Into Pressure And Buoyancy 200

Autore: Ron Marson
Editore: TOPS Learning Systems
ISBN: 094100824X
Grandezza: 29,18 MB
Formato: PDF
Vista: 8147

Cartesian divers immerse students into deep understandings of floating and sinking, buoyancy, pressure, Archimedes' principle, displacement, volume, density, weightless suspension, and more. Differentiated instruction accommodates widely divergent student ability levels and flexibly adapts to tight time schedules.

Nitrogen Metabolism And Excretion

Autore: Patrick J. Walsh
Editore: CRC Press
ISBN: 9780849384110
Grandezza: 38,84 MB
Formato: PDF
Vista: 871

Although the basic evolutionary patterns of nitrogen metabolism and excretion have been outlined for decades, there has been a resurgence of research activity in the past 15 years. Research in nitrogen metabolism has been stimulated in the area of acid-base balance. The molecular revolution has had an impact on the field as well, and recent studies on nitrogen metabolism and excretion now almost routinely use the tools of molecular biology. Of special interest are recent studies of evolutionary relationships between proteins of nitrogen metabolism. Nitrogen Metabolism and Excretion updates the reader on progress being made in this subject, offering an exciting integration of traditional topics and discussions on the most recent issues which have not yet appeared in other textbooks or references. The book features chapters on the latest developments in nitrogen metabolism and excretion from 28 prominent researchers from all over the world. Each chapter is detailed and specific, filled with useful concepts and techniques. The scope of the book is broad and diverse, covering groups from invertebrates to mammals, and subjects from nitrogen in oceanic buoyancy regulation to molecular mechanisms of nitric oxide synthesis. The text provides a phylogenetic view of various animal groups and presents much new information intended to break down phylogenetic stereotypes. The general areas of development, maternal-fetal interactions, protein turnover, carbamoyl phosphate synthesis, nitric oxide, and nitrates and nitrites are also covered in depth. This volume is the first in a new series that brings about a modern synthesis of areas of animal physiology. Nitrogen Metabolism and Excretion benefits both established researchers interested in nitrogen and advanced undergraduate and graduate students who want to investigate the most current and exciting questions being studied and debated.

Aquatic Entomology

Autore: Jill Lancaster
Editore: OUP Oxford
ISBN: 0191669881
Grandezza: 70,52 MB
Formato: PDF
Vista: 1039

Aquatic insects are the dominant invertebrate fauna in most freshwater ecosystems, and figure prominently in the work of a diverse range of researchers, students, and environmental managers. Often employed as indicators of ecosystem health, aquatic insects are also commonly used as model systems to test hypotheses in ecological topics including metapopulation and metacommunity dynamics, recruitment limitation, trophic interactions, and trophic networks. Due to their complex life cycles, aquatic insects must master both terrestrial and aquatic environments, crossing these ecosystem boundaries during different stages of development and reproduction. In this wide-ranging text, life under and on top of the water surface are covered in unusual detail, including the biomechanics of life in water, locomotion underwater and on surface films, gas exchange, physico-chemical stressors, feeding, sensory perception and communication, reproduction, egg-laying and development, and the evolution of aquatic habits. The threatened status of freshwaters around the world, coupled with an expanding population of researchers and managers charged with their well-being, signals the importance of such a book as many individuals seek to understand how insects function in these often challenging physical environments. Interest in freshwaters may never have been higher with ever-increasing conflict between water allocation for human (agricultural) use and conservation. Aquatic Entomology is suitable for graduate students, researchers, and managers interested in the subject from a perspective of either basic or applied ecology. It will also be a valuable supplementary text for courses in limnology or freshwater ecology, entomology, and water resource management.