7,355 research outputs found
Automated model structure variation and policy robustness testing: A procedure for innovation diffusion models
n this paper we present a procedure that enables a systematic and partially automated parameterization and selection of agent-based models of the diffusion of innovations and policies to support diffusion processes. A prototype on the diffusion of water saving shower heads is presented. Our results suggest that the presented approach can adequately and systematically evaluate different sets of parameters and model structures against known diffusion data.Energie and Industri
An experimental study of compressor stability in a 450 kW helicopter gas turbine engine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.Includes bibliographical references (p. 127-128).by Fouzi Khalid Sultan Al-Essa.M.S
sj-pdf-1-imr-10.1177_03000605221097374 - Supplemental material for Uniportal video-assisted thoracoscopic surgery (UVATS) right lower lobectomy for a giant T4 squamous cell lung tumour
Supplemental material, sj-pdf-1-imr-10.1177_03000605221097374 for Uniportal video-assisted thoracoscopic surgery (UVATS) right lower lobectomy for a giant T4 squamous cell lung tumour by Rawand Abdulrahman Essa, Sirwan Khalid Ahmed and Dunya Hars Bapir in Journal of International Medical Research</p
Gravitational Field
This book presents a comprehensive overview of gravity and gravitational fields. The eight chapters are presented in two sections. Chapters in the first section address such topics as the theory of gravity, transient gravitational forces, the nature of our temporal universe, and photo-gravitational celestial mechanics. Chapters in the second section discuss how to create a gravity survey, analyze data collected by satellites and on the ground, and present visualizations of several field cases around the world
Author Checklist - Full - Ahmed Essa_ 135540.pdf
Attached is a required author checklist for animal research </p
Response to correspondence from the ESSA Statement authors
Response to correspondence from the ESSA Statement author
Response to correspondence from the ESSA Statement authors
Response to correspondence from the ESSA Statement author
Modification data for the end of term American Foreign Policy essay
Dataset and do file used for the end of term essa
New fast least-squares algorithm for estimating the best-fitting parameters due to simple geometric-structures from gravity anomalies
A new fast least-squares method is developed to estimate the shape factor (q-parameter) of a buried structure using normalized residual anomalies obtained from gravity data. The problem of shape factor estimation is transformed into a problem of finding a solution of a non-linear equation of the form f(q) = 0 by defining the anomaly value at the origin and at different points on the profile (N-value). Procedures are also formulated to estimate the depth (z-parameter) and the amplitude coefficient (A-parameter) of the buried structure. The method is simple and rapid for estimating parameters that produced gravity anomalies. This technique is used for a class of geometrically simple anomalous bodies, including the semi-infinite vertical cylinder, the infinitely long horizontal cylinder, and the sphere. The technique is tested and verified on theoretical models with and without random errors. It is also successfully applied to real data sets from Senegal and India, and the inverted-parameters are in good agreement with the known actual values
Geophysics and Ocean Waves Studies
The book “Geophysics and Ocean Waves Studies” presents the collected chapters in two sections named “Geophysics” and “Ocean Waves Studies”. The first section, “Geophysics”, provides a thorough overview of using different geophysical methods including gravity, self-potential, and EM in exploration. Moreover, it shows the significance of rock physics properties and enhanced oil recovery phases during oil reservoir production. The second section, “Ocean Waves Studies”, is intended to provide the reader with a strong description of the latest developments in the physical and numerical description of wind-generated and long waves, including some new features discovered in the last few years. The section is organized with the aim to introduce the reader from offshore to nearshore phenomena including a description of wave dissipation and large-scale phenomena (i.e., storm surges and landslide-induced tsunamis). This book shall be of great interest to students, scientists, geologists, geophysicists, and the investment community
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