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Author:
Publisher:
ISBN:
Category : Scientists
Languages : en
Pages : 892
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Book Description
Author:
Publisher:
ISBN:
Category : Scientists
Languages : en
Pages : 892
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Book Description
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1712
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Book Description
First multi-year cumulation covers six years: 1965-70.
Author: National Library of Medicine (U.S.)
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 690
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Book Description
First multi-year cumulation covers six years: 1965-70.
Author: Donald Rapp
Publisher: Springer Science & Business Media
ISBN: 3642327621
Category : Technology & Engineering
Languages : en
Pages : 203
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Book Description
This book carries out approximate estimates of the costs of implementing ISRU on the Moon and Mars. It is found that no ISRU process on the Moon has much merit. ISRU on Mars can save a great deal of mass, but there is a significant cost in prospecting for resources and validating ISRU concepts. Mars ISRU might have merit, but not enough data are available to be certain. In addition, this book provides a detailed review of various ISRU technologies. This includes three approaches for Mars ISRU based on processing only the atmosphere: solid oxide electrolysis, reverse water gas shift reaction (RWGS), and absorbing water vapor directly from the atmosphere. It is not clear that any of these technologies are viable although the RWGS seems to have the best chance. An approach for combining hydrogen with the atmospheric resource is chemically very viable, but hydrogen is needed on Mars. This can be approached by bringing hydrogen from Earth or obtaining water from near-surface water deposits in the soil. Bringing hydrogen from Earth is problematic, so mining the regolith to obtain water seems to be the only way to go. This will require a sizable campaign to locate and validate useable water resources. Technologies for lunar ISRU are also reviewed, even though none of them provide significant benefits to near-term lunar missions. These include oxygen from lunar regolith, solar wind volatiles from regolith, and extraction of polar ice from permanently shaded craters.
Author: Wojciech (Voytek) Gutowski
Publisher: CRC Press
ISBN: 9004201742
Category : Science
Languages : en
Pages : 374
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Book Description
The surface of an object is the first thing we see or touch. Nearly every article or object we encounter at home, in industry, land transportation, aerospace, or the medical field in some way uses an adhesive, a sealant, or a decorative coating. Adhesion science provides the technology and the know-how behind these applications. Recent Advances in
Author: Steven Nahmias
Publisher: Springer Science & Business Media
ISBN: 1441979999
Category : Business & Economics
Languages : en
Pages : 89
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Book Description
A perishable item is one that has constant utility up until an expiration date (which may be known or uncertain), at which point the utility drops to zero. This includes many types of packaged foods such as milk, cheese, processed meats, and canned goods. It also includes virtually all pharmaceuticals and photographic film, as well as whole blood supplies. This book is the first devoted solely to perishable inventory systems. The book’s ten chapters first cover the preliminaries of periodic review versus continuous review and look at a one-period newsvendor perishable inventory model. The author moves to the basic multiperiod dynamic model, and then considers the extensions of random lifetime, inclusion of a set-up cost, and multiproduct models of perishables. A chapter on continuous review models looks at one-for-one policies, models with zero lead time, optimal policies with positive lead time, and an alternative approach. Additional chapters present material on approximate order policies, inventory depletion management, and deterministic models, including the basic EOQ model with perishability and the dynamic deterministic model with perishability. Finally, chapters explore decaying inventories, queues with impatient customers, and blood bank inventory control. Anyone researching perishable inventory systems will find much to work with here. Practitioners and consultants will also now have a single well-referenced source of up-to-date information to work with.
Author:
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 314
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Book Description
Author: United States. Office of Naval Research
Publisher:
ISBN:
Category :
Languages : en
Pages : 312
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Book Description
Author:
Publisher:
ISBN:
Category : DNA
Languages : en
Pages : 766
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Book Description
Documents relating to "NIH guidelines for research involving recombinant DNA molecules".
Author: Clive N. Svendsen
Publisher: SAGE Publications
ISBN: 1452265933
Category : Reference
Languages : en
Pages : 953
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Book Description
What is a stem cell? We have a basic working definition, but the way we observe a stem cell function in a dish may not represent how it functions in a living organism. Only this is clear: Stem cells are the engine room of multicelluar organisms—both plants and animals. However, controversies, breakthroughs, and frustration continue to swirl in eternal storms through this rapidly moving area of research. But what does the average person make of all this, and how can an interested scholar probe this vast sea of information? The Encyclopedia of Stem Cell Research provides a clear understanding of the basic concepts in stem cell biology and addresses the politics, ethics, and challenges currently facing the field. While stem cells are exciting alone, they are also clearly fueling the traditional areas of developmental biology and the field of regenerative medicine. These two volumes present more than 320 articles that explore major topics related to the emerging science of stem cell research and therapy. Key Features · Describes the different types of stem cells that have been reported so far and, where possible, tries to explain for each age, tissue, and species what is known about the biology of the cells and their history · Captures a strong sense of stem cell biology as it stands today and provides the reader with a reference manual to probe the mysteries of the field · Considers various religious, legal, and political perspectives · Includes selected reprints of major journal articles that pertain to the milestones achieved in stem cell research · Elucidates stem cell terminology for the nonscientist. Key Themes · Biology · Clinical Trials · Countries · Diseases · Ethics · History and Technology · Industry · Institutions · Legal · Organizations · People · Politics · Religion · States With contributions from scholars and institutional experts in the stem cell and social sciences, this Encyclopedia provides a primarily nonscientific resource to understanding the complexities of stem cell research for academic and public libraries.
