Author: Publisher:
ISBN:
Category : Drinking water
Languages : en
Pages : 12
Book Description
Non-transient, Non-community Water Systems
Author: Nasa Systems Engineering Handbook - Nasa Sp-2016-6105 Rev2
Author: National Aeronautics and Space AdministrationPublisher: Createspace Independent Publishing Platform
ISBN: 9781979381475
Category :
Languages : en
Pages : 298
Book Description
This handbook, "NASA Systems Engineering Handbook," is intended to provide general guidance and information on systems engineering that will be useful to the NASA community. It provides a generic description of Systems Engineering (SE) as it should be applied throughout NASA. A goal of the handbook is to increase awareness and consis¬tency across the Agency and advance the practice of SE. This handbook provides perspectives relevant to NASA and data particular to NASA. This handbook describes systems engineering best practices that should be incorporated in the development and implementation of large and small NASA programs and projects. The engineering of NASA systems requires a systematic and disciplined set of processes that are applied recursively and iteratively for the design, development, operation, maintenance, and closeout of systems throughout the life cycle of the programs and projects. The scope of this handbook includes systems engineering functions regardless of whether they are performed by a manager or an engineer, in-house or by a contractor.
Government Reports Announcements & Index
Author: Conserving Bogs
Author: Rob E. StonemanPublisher: Stationery Office Books (TSO)
ISBN: 9780114958367
Category : Bog conservation
Languages : en
Pages : 0
Book Description
Bogs are fascinating landscapes for ecologists, climatologists, archaeologists, environmental historians and water managers. But many bogs have been damaged, and legislative protection - as 29 case studies demonstrate - is not enough to conserve the rest.
Preserving the Desert
Author: Lary M. DilsaverPublisher:
ISBN: 9781938086465
Category : Desert conservation
Languages : en
Pages : 0
Book Description
National parks are different from other federal lands in the United States. Beginning in 1872 with the establishment of Yellowstone, they were largely set aside to preserve for future generations the most spectacular and inspirational features of the country, seeking the best representative examples of major ecosystems such as Yosemite, geologic forms such as the Grand Canyon, archaeological sites such as Mesa Verde, and scenes of human events such as Gettysburg. But one type of habitat--the desert--fell short of that goal in American eyes until travel writers and the Automobile Age began to change that perception. As the Park Service began to explore the better-known Mojave and Colorado deserts of southern California during the 1920s for a possible desert park, many agency leaders still carried the same negative image of arid lands shared by many Americans--that they are hostile and largely useless. But one wealthy woman--Minerva Hamilton Hoyt, from Pasadena--came forward, believing in the value of the desert, and convinced President Franklin D. Roosevelt to establish a national monument that would protect the unique and iconic Joshua trees and other desert flora and fauna. Thus was Joshua Tree National Monument officially established in 1936, with the area later expanded in 1994 when it became Joshua Tree National Park. Since 1936, the National Park Service and a growing cadre of environmentalists and recreationalists have fought to block ongoing proposals from miners, ranchers, private landowners, and real estate developers who historically have refused to accept the idea that any desert is suitable for anything other than their consumptive activities. To their dismay, Joshua Tree National Park, even with its often-conflicting land uses, is more popular today than ever, serving more than one million visitors per year who find the desert to be a place worthy of respect and preservation. Distributed for George Thompson Publishing
Experimental and Quasi-experimental Designs for Generalized Causal Inference
Author: William R. ShadishPublisher: Cengage Learning
ISBN:
Category : Education
Languages : en
Pages : 664
Book Description
Sections include: experiments and generalised causal inference; statistical conclusion validity and internal validity; construct validity and external validity; quasi-experimental designs that either lack a control group or lack pretest observations on the outcome; quasi-experimental designs that use both control groups and pretests; quasi-experiments: interrupted time-series designs; regresssion discontinuity designs; randomised experiments: rationale, designs, and conditions conducive to doing them; practical problems 1: ethics, participation recruitment and random assignment; practical problems 2: treatment implementation and attrition; generalised causal inference: a grounded theory; generalised causal inference: methods for single studies; generalised causal inference: methods for multiple studies; a critical assessment of our assumptions.
Railroad Freight Car Safety Standards
Author: United States. Department of TransportationPublisher:
ISBN:
Category : Freight cars
Languages : en
Pages : 72
Book Description
Water Quality for Agriculture
Author: R. S. AyersPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 196
Book Description
Richtlijnen voor de werker in het veld om problemen te ondervangen ten aanzien van de waterkwaliteit voor irrigatie-doeleinden. Tenslotte worden praktijkervaringen uit diverse gebieden vermeld
Testing in American Schools
Author: Publisher:
ISBN:
Category : Educational tests and measurements
Languages : en
Pages : 56
Book Description
Federal Land Exchange Facilitation Act of 1988
Author: United StatesPublisher:
ISBN:
Category : United States
Languages : en
Pages : 10
Book Description