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Garcia-Lamont J.,Mexico State University | Aleman-Arce M.,National Polytechnic Institute
Proceedings - 2010 IEEE Electronics, Robotics and Automotive Mechanics Conference, CERMA 2010 | Year: 2010

This paper presents a vision chip for laser spot detection. The sensor has an architecture that comprises a 64x64 pixel array with a pixel pitch of 38.6μm × 30.8μm and fill factor of 30% and two position processors that deliver coordinate position for both axes. Under maximum speed condition, power consumption was 103mW, where maximum frame rate was 870000 frames per second. The maximum mismatch between pixels was 3% and maximum position accuracy was 0.013(2Δx). © 2010 IEEE. Source


News Article
Site: http://phys.org/chemistry-news/

The reduction of sulfur in the manufacture of gasoline and diesel generates large amounts of greenhouse gases, so specialists from the National Polytechnic Institute (IPN) in Mexico created an innovative catalytic material that removes this element, and its production requires only one day, representing an advantage in time and cost. The material consists of a catalyst composed of a transition metal called molybdenum, which removes sulfur in gasoline or diesel during hydrodesulfurization, which is the second stage of the distillation of petroleum, said Dr. Jose Domingo Cuesta Leal from the Center of Applied Scientific Research and Advanced Technology (CICATA). The innovation lies in a one-step synthesis methodology by which it is possible to obtain a catalyst with better qualities than current commercial products. Cuesta Leal explained that a hydrothermal reaction was used for the synthesis of the product. Its effect on a load of gas was evaluated after the amount of sulfur in the sample was measured and a reduction of 80 percent was obtained. Additionaly, in comparison with a commercial material under the same conditions, the one created at CICATA demonstrated better properties. The project can be adapted to any desired conditions, either as a compacted powder or small aggregates called pellets. This is the result of six years of research, time during which Dr. Cuesta Leal earned his master's and doctorate financed by the Mexican Council for Science and Technology (Conacyt). He adds that the sulfur removal benefits the oil refining process, avoiding corrosion and contamination by other catalysts such as platinum. Explore further: One sponge-like material, three different applications


News Article | October 23, 2012
Site: tech.firstpost.com

According to Trend Micro, Android users should be more careful while downloading apps from Google Play as there has been a sharp increase in the amount of malware found on the app market. According to a security roundup by Trend Micro, the number of high risk and dangerous apps that are targeting Android users has risen, from 30,000 in June to 175,000 in September. The security company has also reported a rise in the number of aggressive mobile adware that collects information about the users. “Though most adware is designed to collect user information, a fine line exists between collecting data for simple advertising use and violating one's privacy,” Trend Micro said. “Because adware normally collect user information for legitimate purposes, they can serve as an effective means to gather more data than some would want to give out.” Trend Micro is reporting a rise in malware for Android According to Trend Micro, the top three malware identified were ZeroAccess, Downad/Conficker, and Keygen. ZeroAccess as infected over 900,000 devices to date. One of the most common sources of infection on Android devices is fake apps imitating to be real ones. Recently, a Trojan was found on Google Play that steals personal information which it then transmits to a remote FTP server. The owner of the FTP server has not been identified yet. The trojan is hidden in an app named 'Updates' by developer Good Byte Labs. According to TrustGo Security Labs, the app was “designed to look like an update to the Lookout mobile security application”. The virus was discovered by TrustGo in a package named com.updateszxt. “The brazen use of a trusted app's logo shows just how aggressive malware makers are becoming. These fake apps not only put users' data and privacy at risk, they can damage the reputation of respected developers,” TrustGo CEO Xuyang Li said, adding, “TrustGo continually monitors new apps uploaded to more than 185 marketplaces worldwide and is able to provide App Certification and Brand Protection services that alert developers when malicious clones and apps that falsely use their logos have been found.” Recently, Google had started rolling out an update for Google Play. The latest update to the store allows you to remove apps from the All Apps list, which records all your app downloads to date, in addition to remembering your location in lists, and new icons for notifications and installed apps. The latest version number is 3.9.16. Android Police was the first to report on the matter. According to Google, Android device activation has risen by more than 400 percent over the past year. The number of Android users downloading apps is also now more than it was in the previous three years combined. This has made India the fourth-largest market for app downloads worldwide. Android, Android Adware, Android App Discount, Android App sale, Android Apps, Android Malware, Android Operating System, Android OS, Android Trojan, Google, Google Android, Google Inc, Google Play, Google Play 3.9.16, Google Play Discount, Google Play Malware, Google Play new notification, Google Play new update, Google Play sale, Google Play Store, Google Play Store Discount, Google Play Store Sale, Google Play Trojan, Google Play update available, Google Play updated, Top Android Apps, Trend Micro, Trend Micro Android Security, Trend Micro Android Security Roundup, Trend Micro Security Roundup


Olguin-Carbajal M.,National Polytechnic Institute | Barron-Fernandez R.,National Polytechnic Institute | Oropeza-Rodrigez J.L.,National Polytechnic Institute | Alvarez-Cedillo J.,National Polytechnic Institute | Herrera-Lozada J.C.,National Polytechnic Institute
Journal of Theoretical and Applied Information Technology | Year: 2010

Optical properties of scenario objects for rendering realistic images synthesis are highly important for computer graphics. We have proposed a methodology to obtain some illumination parameters of a real scenario represented by an acquired image and use these parameters for the adequate rendering of an equivalent virtual scenario made by hand. The proposed methodology uses an acquired image that we call ObjetiveImage and compare it with a rendered equivalent image of a virtual scenario, called RenderedImage that represents the original. The real scenario is approached by hand, but some of the illumination parameters like light source position and intensity as well as objects color are searched by using a Differential Evolution algorithm. Rendering images that approximate to the real acquired image, by some virtual scenario parameter modification based on the DE search, we call "Rendering in the loop". Finally we use the obtained parameters to render a better resolution image to obtain the result. The fitness function for the comparison of the two images is the most important search in this investigation. © 2005 - 2010 JATIT & LLS. All rights reserved. Source

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