Author: New York (State). Dept. of AgriculturePublisher:
ISBN:
Category :
Languages : en
Pages : 1010
Book Description
Author: New Hampshire. State Board of HealthRenovating Secondary Sewage by Ground Water Recharge with Infiltration Basins
Author: Herman BouwerPublisher:
ISBN:
Category : Artificial groundwater recharge
Languages : en
Pages : 124
Book Description
A field project demonstrated the feasibility of renovating secondary sewage effluent by ground water recharge with infiltration basins. Maximum loading rates were obtained. With the schedules the system could infiltrate 300-400 ft/year using a water depth of 1 ft. Grassed basins had higher infiltration rates, and a gravel covered basin had a lower infiltration rate than a bare soil basin. Essentially complete removal of BOD and fecal coliform, and significant removal of phosphorus, nitrogen and fluoride were obtained. Hydraulic properties of the aquifer were evaluated by analog from the response of piezometric heads in the ground-water system to infiltration. These properties were then used in the design of a prototype system, which would yield renovated water at an estimated total cost of about $5 per acre-foot at the pump.
Author: New York (State). Dept. of Agriculture
Author: 
Author: 
Author: United States. Bureau of Animal IndustryAnalysis of Failure and Survival Data
Author: Peter J. SmithPublisher: CRC Press
ISBN: 1351989677
Category : Mathematics
Languages : en
Pages : 268
Book Description
Analysis of Failure and Survival Data is an essential textbook for graduate-level students of survival analysis and reliability and a valuable reference for practitioners. It focuses on the many techniques that appear in popular software packages, including plotting product-limit survival curves, hazard plots, and probability plots in the context of censored data. The author integrates S-Plus and Minitab output throughout the text, along with a variety of real data sets so readers can see how the theory and methods are applied. He also incorporates exercises in each chapter that provide valuable problem-solving experience. In addition to all of this, the book also brings to light the most recent linear regression techniques. Most importantly, it includes a definitive account of the Buckley-James method for censored linear regression, found to be the best performing method when a Cox proportional hazards method is not appropriate. Applying the theories of survival analysis and reliability requires more background and experience than students typically receive at the undergraduate level. Mastering the contents of this book will help prepare students to begin performing research in survival analysis and reliability and provide seasoned practitioners with a deeper understanding of the field.
Author: 
Author: United States. Bureau of Chemistry