This workbook is a result of several years experience in applying geographic information systems (GIS) technology to typical forestry, natural resource management, and environmental problems. Many of the terms and concepts introduced in this book have been compiled from a variety of different sources. These include some of the prevalent text books in the field, but most have been firmly implant...

High-speed trains serving in a crosswind region are bearing more significant safety risks. Based on the three-dimensional (3D) Unsteady Reynolds-Averaged Navier–Stokes (URANS) turbulence model, Computational Fluid Dynamics (CFD) computational work was conducted present study to predict transient aerodynamic load of train. The then employed as input dynamic system perform analysis running safety...

The aim of this research work is to evaluate the effects of coolant including nano- powder material for the cooling purpose in milling process and comparing the results with the conventional coolant. Generation heat and weak heat transfer reduces the tool life and also deteriorate surface roughness during milling operation. To overcome this problem, it is necessary to use coolant for cooling as...

PURPOSE To evaluate changes over time of the anterior capsule opening size after phacoemulsification, based on haptic number and composition of three acrylic intraocular lenses (IOLs). METHODS Fifty-five patients (70 eyes) were included. All underwent phacoemulsification followed by implantation of either an acrylic IOL with two-haptic (one-piece, 26 eyes; three-piece, 22 eyes), or four-hapti...

The carbody shaking phenomenon (CSP) can greatly reduce the ride comfort of high-speed trains. To investigate abnormal vibration feature and causes CSP, extensive field measurements numerical simulations were conducted. A three-dimensional rigid-flexible coupled dynamic model a vehicle is constructed to reproduce CSP reveal key influence factors, in which finite element updated based on experim...