An Integrated Approach for Quantifying Pesticide Dissipation under Diverse Conditions I: Field Study Design

Author(s):  
S. A. Cryer ◽  
P. N. Coody ◽  
J. White
2002 ◽  
Vol 42 (1) ◽  
pp. 477
Author(s):  
D.L Clarke ◽  
A.P Clare

As part of a multi-well field study an integrated petrophysical workflow was developed to include the generation of fluid substituted logs for AVO characterisation.The workflow relied upon the construction of a multimineral model that best approximated the actual mineral content of the reservoir. Any limitations or assumptions were noted and taken into account when creating the multi-mineral model. Other petrophysical results were derived from the same model to validate its consistency such as intrinsic permeability, porosity, water saturation, etc. Iteration between the model and the results was required until a consistent model was achieved.The estimation of an intrinsic permeability log was based upon the k-Lambda method that uses the multimineral model and porosities.The estimation of a shear slowness log and the fluid substituted logs was based upon elastic rock properties derived from the multi-mineral model and the acquired compressional slowness log and bulk density log. This integrated approach provides a higher confidence in the derived results, which are then used as input into the reservoir model, thereby improving the reserve calculations.The interdependence of each derived result on the same input multi-mineral model ensures consistency and predictability in a complex geological environment, which captures all available information.The method is demonstrated with the Gipsy–1 and North Gipsy–1 wells, which were part of the original field study.


2001 ◽  
Vol 127 (8) ◽  
pp. 735-740 ◽  
Author(s):  
Hsunling Bai ◽  
Shang-Hsiu Lee ◽  
Chia-Hsin Lin ◽  
Jyh Feng Hwang ◽  
Chang-Liang Hsieh

Author(s):  
Punit Jhandai

One health is an integrated approach that considers human, animal, and environmental health components that can improve prediction. One health implies that data on man and animal health and environmental indicators are studied and interpreted together. This chapter focuses on population-based quantitative and qualitative one health study designs with an emphasis on field surveys to understand disease dynamics and how to control measures being tested. The aim is not on early diagnoses of emerging diseases but instead of that on endemic zoonosis. It first describes examples on joint monitoring and surveillance to control diseases and then practical information on planning of a field study design, and concludes on the advantages of one health study designs. Also discussed are possible constraints for their implementation. For the examples, single sector approach could not explain the main epidemiological considerations.


2002 ◽  
Vol 30 (6) ◽  
pp. 834-836 ◽  
Author(s):  
Steven M. Kane ◽  
Hugh O. House ◽  
Kristi A. Overgaard

Background Two basic baseball sliding techniques, feet-first and head-first, are taught at all levels of play. Because of the risk for injury to the upper extremities and the cervical spine during head-first sliding, it is potentially more dangerous than feet-first sliding. There is an assumption among coaches that head-first sliding is more aggressive and faster, but there has been no scientific study to prove this claim. Purpose The purpose of this study was to determine which technique provides a faster slide into the base. Study Design Controlled field study. Methods A total of 60 players ranging from Little League to college level was analyzed. Each athlete was evaluated three times from a standing start at first base to either a head-first or feet-first touch of second base. Each athlete was also timed in a 40-yard sprint and his or her preferred sliding technique was recorded. Results We found no statistically significant difference in speed between head-first and feet-first sliding at all levels of play in this study.


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