Before the surgery‚ the patient’s corneas are examined with a pachymeter to determine their thickness‚ and with a topographer‚ or corneal topography machine‚[1] to measure their surface contour. Using low-power lasers‚ a topographer creates a topographic map of the cornea. The procedure is contraindicated if
Premium Ophthalmology Contact lens
Map World Forum Hyderabad‚ India RAILWAY DISASTER PREVENTION SYSTEM USING GIS and GPS Varun Prakash* and Sonali kumari* Email id: vpdreams2002@yahoo.co.in‚ sonali_1z@yahoo.co.in INTRODUCTION Railway industry has a valuable role in economic development of each country . India ’s massive rail network is hit by an average of 300 accidents a year. Accident management in railway decision making has to consider the following two issues to avoid or mitigate the damages: (i) accident prevention
Premium Global Positioning System
“EXTRACTION AND QUANTIFICATION OF BRAIN TUMOR FROM MRI IMAGE” CHAPTER 1 INTRODUCTION 1.1 GENERAL: The principle task of our project is to recognize a tumor and its quantifications from a particular MRI scan of a brain image using digital image processing techniques and compute the area of the tumor by fully automated process. In medical imaging‚ segmentation of images plays a vital role in stages which occur before implementing object recognition
Premium Image processing Magnetic resonance imaging Cancer
pressure below the ground. As we withdraw ground water and the water table drops‚ the soil collapses‚ compacts‚ and drops resulting in the decrease of land-surface elevation. Subsidence causes permanent inundation of land‚ aggravates flooding‚ changes topographic gradients‚ ruptures the land surface‚ and reduces the capacity of aquifers to store water. Land subsidence is a global problem. This situation occurs throughout the United States‚ but has had more impact in California‚ Texas‚ and Arizona. According
Premium Irrigation Groundwater Aquifer
65th EASTERN SNOW CONFERENCE Fairlee (Lake Morey)‚ Vermont‚ USA 2008 Evaluation of Pixelbase and Subpixel Methods for Snow Cover Studying in Regional Scale SEPIDEH DADASHI‚ 1 ALI-AKBAR MATKAN‚ 2 PARVIZ ZIAIIAN‚ 3 AND DAVOOD ASHORLO 4 ABSTRACT Monitoring snow cover changes are important to water resource researches because it supplies electricity and freshwater. Although operational snow cover mapping by optical sensors has been used for more than 4 decades in the world but In Iran‚ traditional
Premium Water Snow
and a minimally invasive fashion‚ has augmented the understanding and approach to the treatment of cellulite. Understanding the structural components that underpin cellulite anatomy allows for a more specific targeting approach. Cellulite is a topographic alteration of the skin and subcutaneous adipose that has been reported as early as 150 years ago but yet still affects patients today. It is quite prevalent‚ almost ubiquitous in postpubertal women and can be thought of as a female secondary sex
Premium Adipose tissue Laser Fat
slope‚ and the leeward side is the steeper slope. 15.17. On page 278 of the Answer Page draw a topographic profile from coordinates F-6.7 to H.5-10 on the Lakeside quadrangle. 15.18. Which is the steeper side of this dune—the northwest side or the southeast side? The northwest side. 15.19. Which kind of dune illustrated in Figure 15.15 do you believe you traversed with your topographic profile? Three
Premium Wind Sedimentary rock Water
Survival skills Survival skills are techniques a person may use in a dangerous situation (e.g. natural disasters) to save themselves or others (see also bushcraft). Generally speaking‚ these techniques are meant to provide the basic necessities for human life: water‚ food‚ shelter‚ habitat‚ and the need to think straight‚ to signal for help‚ to navigate safely‚ to avoid unpleasant interactions with animals and plants‚ and for first aid. In addition‚ survival skills are often basic ideas and abilities
Premium Survival skills Survivalism
The ancient scholar of Greece Plato told of a legend of a great city the size of Asia and Libya put together on a lush island that sank into the ocean within one day and one night 9000 years ago. Plato wrote two dialogues Timaeus and Critias at around 360BCE‚ Atlantis’ features in both of these. This myth has enthralled people for centuries and has given rise to many skeptics and believers of the legend. Still to this day people ask was Atlantis real? The Greek scholar Plato spoke about a place
Premium Mediterranean Sea
Conversion: Ratio: measured in cm Direct Statement: uses word to describe the relationship between a distance on a map and specific distance on Earth’s surface‚ for example‚ 1 cm to 10km. This means if the distance between two towns on a map is one cm‚ the actual distance between the towns is 10 kilometers. Longitude and Latitude: Longitude - are the “vertical” lines on a map and imaginary lines on the earth used to calculate east or west. Latitude - are the ’horizontal’ lines - they are
Premium Precipitation Earth