Sunday, November 13, 2011

Samsung Galaxy Nexus



At last Google and Samsung unveiled their new phone called Samsung Galaxy Nexus. A person who saw it in out site he might not be able to identify much deferent with new one and previous phones but when we look at deeper it have some fascinating features. For example it runs latest version of android, Android 4.0, aka Ice Cream Sandwich. It has almost all the upcoming features such as dual-core CPU, 4G connection, and a full-HD 720p screen.  

Samsung is among the leading screen venders in todays market so they have include huge 4.65-inch Super AMOLED HD display (1280 x 720 pixel resolution.) to the Galaxy Nexus phone. This is huge step for the android because this results pixel density of 316 pixels per inch (ppi) it’s just short of the iPhone 4 and 4S’s 326ppi screen.

When we consider about the speed Samsung Galaxy Nexus provides fascinating speed on smartphone. As many people expect Samsung Galaxy Nexus powered by a Dual-core 1.2GHz processor (Cortex-A9 CPU, TI OMAP 4460 chipset) , which gave more processing power to the phone.

In a smart phone camera is essential thing to measure about the quality of it. In Samsung Galaxy Nexus, it comes with 5-megapixel rear-facing camera and 1.3-megapixel front-facing camera witch gave maximum usability from this smart phone. According to the Samsung the Galaxy Nexus also boasts zero shutter lag, which means it hasn’t delay between when user press the shutter button and when camera actually process the photo.
Hear are some of spec details on Samsung Galaxy Nexus.

Geographical Information Systems

Geographical Information Systems are computerized systems for the storage, retrieval, manipulation, analysis, and display of geographical referenced data. If these systems include physical, biological, cultural or economic information they are very valuable tools in the natural, social, medical and engineering science, as well as business and planning. So, this research provides some recognition and application of the GIS which is one of the very important areas to implement to solve some major geographical problems. 


History of GIS

The GIS field began in the second half of the 20th century, when computer programmers discovered that maps could be made by changing data into code. The year 1962 saw the development of the world’s first true operational GIS in Ottawa, Canada by the federal department of Forestry and Rural Development. It was called “Canada Geographic Information System” (CGIS) and was used to store, analyze, and manipulate data for the Canada Land Inventory (CLI). They used it to determine the land capability for rural Canada by mapping information about soil, agriculture, recreation, wildlife, waterfowl, forestry, and land use at a scale of 1: 50,000


Why it is important?

The life of every creature in the world has bound tightly with the environment. Anyone cannot stay out of this amazing environment. Why GIS is so important this much to us is it provides powerful tools for addressing geographical and environment issues such as hurricanes, disasters like tsunami, and earthquakes etc.  Just imagine what you know about the swamp area at the end of your street. With a GIS you can point at the location, object, or area on the screen and retrieve recorded information about the swamp. 

Using scanned aerial photographs as a visual guide, you can ask a GIS about the geology or hydrology of the area or even about how close a swamp is to the end of a street. So this type of analysis allows you to drawing conclusions and making decisions. That is why GIS is very important to the world.

On the other hand, though the databases are the effective way of storing of data they are not easy to interpret. So the advancement of the GIS is can be easily interpret and easy to understand even for ordinary person. So using databases and maps together provides very effective way of interpreting and visualizing information 


Applications of the GIS

GIS technology is widely used for scientific investigations, resource management, archaeology, environment impact assessment, criminology, geographic history, marketing, logistics, prospectivity mapping and other purposes. As an example GIS might allow emergency planners to easily calculate emergency response times in the event of a natural disaster like tsunami. GIS might be used to find wetlands that need protection from pollution and for other business solutions.

Once a GIS was used to combine the road network and earth science information to analyze the effect of an earthquake on the response time of fire and rescue squads. But nowadays almost all the western countries take help of GIS not only to find solutions for the environmental issues but also for the facilities management, land management, and street- networks. Following are the brief indication of major applications of GIS.
  • Natural resource management
-          Wildlife habitat
-          Flood plains
-          Wetlands
-          Agricultural lands
-          Forests
  •   Facilities Management
-          Locating underground pipes and cables
-          Tracking energy use
-          Load balancing in electrical networks
-          Planning facility maintenance
  •  Street networks
-          Address matching
-          Location analysis or site selection.

Wednesday, November 9, 2011

Five largest football stadiums in the world


In following post I decided to gather some information regarding world’s largest football stadiums. But these are not the world largest stadiums in future I’m planning to put a post regarding that also. These stadiums are ordered by the number of spectators they can normally accommodate.


Azadi Stadium

Azadi Stadium is the world fifth largest football stadium which is situated it Teheran, Iran. It is Iran's national stadium and the largest in the country. This is house for Iran’s national football team as well as two professional Iranian teams, Persepolis F.C. and Esteghlal F.C. The Azadi stadium was built to host the 1974 Asian Games. In 1974 had a capacity of 110,000, this was reduced to 90,000 following the installation of seats in the lower tiers of the stadium in 2003.
The stadium was originally called Aryamehr Stadium but then changed to Azadi Stadium after the Iranian Revolution; "Azadi" means freedom in Persian.



Bukit Jalil National Stadium

Bukit Jalil National Stadium is the world fourth largest football stadium in the world. It is another multi purpose stadium which was opened at 1 January 1998 which is situated at the capital city of Malaysia Kuala Lumpur. This was built in 1998 to host the 1998 Commonwealth Games. It can facilitate to 100,200 spectators.
Today this stadium is the home of the Malaysian national team and most recently was among the stadiums used in the 2007 Asian Cup. This stadium facilitate following facilities 68m x 105m Grass pitch, 9 laned 400m synthetic track,6m x 60m warming up track, 1,500 flux floodlights and Broadcast Studios.



Estadio Azteca
Estadio Azteca is the worlds third largest football stadium and it is situated at Santa Ursula, Mexico City, Mexico. This is the home stadium of the Mexico national football team and the Mexican team Club América. This stadium can hold 104,000 people.
This stadium was opened at May 29, 1966 and the The opening game was between Club América and Torino F.C. Most important thing on Estadio Azteca stadium is it’s only stadium in the world which had host two World Cup Finals (1970 with Brazil and Italy and 1986 with West Germany and Argentina).



Salt Lake Stadium
Salt Lake Stadium or Stadium of the Indian Youth is second largest football stadium in the world. It is situated in Bidhannagar, Kolkata, West Bengal. It’s another multi purpose stadium. This was opened at 1984 January and holds 120,000 people in a three-tier configuration.   
The stadium covers an area of 76.40 acres (309,200 m2). The salient features of the stadium are unique synthetic track for athletic meets, electronic scoreboard, main football arena measuring 105m x 70m, elevators, VIP enclosures, peripheral floodlighting arrangement from the roof-top, air conditioned VIP rest room and Conference Hal 



Rungrado May Day Stadium
Rungrado May day stadium or May first stadium was situated in Pyongyang, North Korea. This was constructed as main stadium for 13th World Festival of Youth and Students in 1989.This stadium was opened at May 1, 1989 and it was multi purpose stadium but currently it uses for football. This can facilitate to 150,000 spectators and it’s the 12th largest sporting venue in the world.
It hosts events on a main pitch sprawling across over 22,500 m² Its total floor space is over 207,000 m² (2.2 million ft²) across eight stories, and the lobes of its roof peak at more than 60 m (197 ft) from the ground.


difference between Intel Core i3 i5 and i7 processors

One of most important part of a computer is the Processor. When someone talks about processors it’s necessary to consider about its clock speed, cache, size of the processor, how many threads it can handle simultaneously and many things. Earlier most of the processor venders came with common name for tell about the architecture of the processor (such as Duel core, Core 2 due etc) and their clock speed to identify particular processor. But Intel introduces new line of processors which calls i3, i5 and i7.This article mainly focus on identifying the differences between those processors.  

In nutshell
Core i7 is better than Core i5 and Core i3 which means this number is relating with the processing power of the processor. But it doesn’t say about the number of Cores in particular processor. For example Core i7 processor doesn’t contains 7 Cores inside of it. In core i3 processor most of time it only contains 2 cores [but there are some Core i3 processors which contains 4 cores] in the same time core i5 and core i7 can have either 2 or 4 cores.
This core I categorization based on the Intel processor star rating system which calculating base on different parameters such as number of Cores, Clock speed, size of the cache memory as well as it’s new technologies like Turbo Boost and Hyper-Threading. 

Core i3

This is the entry level processor of the new category in Intel processors. They develop this processor with minimum processing power. So it doesn’t have significant performance improvement with previous processor versions. Hear are some of features of core i3 processor

  • Users four threads and contains Hyper-Threading feature to improve the efficiency of the processor.
  • It contains 2 or 4 Cores.
  • Consist around 2-4 MB cache memory
  • It uses less energy and it generating less heat when compared with previous processors.

Core i5

Core i5 is the mid size of (considering the performance) processor in core I series. Actually core i5 is more powerful compared with the core i3. This processor design for applications which might required little bit more processing power than normal processor power. These are some of specific features of Core i5
  • In Core i5 processor it might contain 2 or 4 cores    
  • This has 3-8 MB cache memory
  • This processor comes with 2-4 threads so it’s same as the Core i3 processor.
  • This supports Turbo Boost feature which this provides users with the opportunity to turn off a core if it’s not being utilized.


Core i7

This is the most powerful processor in Core I series. This processor mainly developed to work with applications where the user will be running resource-intensive applications. This is the ideal processor for the game lovers. These are some of features of Core i7 processor.

  • This processor contains 4-8 MB cache memory which is the highest in Core I series.
  • This processor comes with 8 threads, which is the highest number of threads in Core I series and also it consist with hyper threading technology.
  • This will contain 4 Cores to provide more processing power.
  • Compared with all other two processors this is the most energy efficient and less heat generating processor in Core I processor series.