2010年10月4日星期一

How Does the Internet Work

1 What is Internet ?  
   A global network connecting millions of computers. More than 100 countries are linked into exchanges of data, news and opinions. Unlike online services, which are centrally controlled, the Internet is decentralized by design. Each Internet computer, called a host, is independent. Its operators can choose which Internet services to use and which local services to make available to the global Internet community. Remarkably, this anarchy by design works exceedingly well.  There are a variety of ways to access the Internet. Most online services, such as America Online, offer access to some Internet services. It is also possible to gain access through a commercial Internet Service Provider (ISP)
   sources
 
2 What is Internet Protocol ?
    The Internet Protocol (IP) is the method or protocol by which data is sent from one computer to another on the Internet. Each computer (known as a host) on the Internet has at least one IP address that uniquely identifies it from all other computers on the Internet. When you send or receive data (for example, an e-mail note or a Web page), the message gets divided into little chunks called packets. Each of these packets contains both the sender's Internet address and the receiver's address. Any packet is sent first to a gateway computer that understands a small part of the Internet. The gateway computer reads the destination address and forwards the packet to an adjacent gateway that in turn reads the destination address and so forth across the Internet until one gateway recognizes the packet as belonging to a computer within its immediate neighborhood or domain. That gateway then forwards the packet directly to the computer whose address is specified.
    sources

3 What is the OSI Model ?
   The Open Systems Interconnection model (OSI model) is a product of the Open Systems Interconnection effort at the International Organization for Standardization. It is a way of sub-dividing a communications system into smaller parts called layers. A layer is a collection of conceptually similar functions that provide services to the layer above it and receives services from the layer below it. On each layer an instance provides services to the instances at the layer above and requests service from the layer below.
   sources

4 What is Internet Infrastructure ?
   All the hardware and services required to make this web page appear in your browser, or an RSS feed download into your reader, or VOIP calls / emails get to your desktop. All the underlying technologies that are unseen, but ‘make the Internet go’.
   
     Internet Infrastructure consisting of a ‘Top 5′ areas :       sources
  • Data Centres
  • Network Connectivity
  • Computer Equipment
  • Storage Services
  • Server Applications 


5 What is domain names ?  
6 What is World Wide Web ? and it services ?   
7 How many internet users in Thailand ?
     A system of Internet servers that support specially formatted documents. The documents are formatted in a markup language called HTML (HyperText Markup Language) that supports links to other documents, as well as graphics, audio, and video files. This means you can jump from one document to another simply by clicking on hot spots. Not all Internet servers are part of the World Wide Web.
   There are several applications called Web browsers that make it easy to access the World Wide Web; Two of the most popular being Firefox and Microsoft's Internet Explorer
     As of 2008, there were 16,100,000 Internet users in Thailand.
        sources
     
   A name that identifies one or more IP addresses. For example, the domain name microsoft.com represents about a dozen IP addresses. Domain names are used in URLs to identify particular Web pages. For example, in the URL

      sources

2010年9月27日星期一

Thai-China high speed train

Topic: Thailand-China high-speed train

       High-speed rail (HSR) is a type of passenger rail transport that operates significantly faster than the normal speed of rail traffic. Specific definitions by the European Union include 200 km/h (120 mph) for upgraded track and 250 km/h (160 mph) or faster for new track. In Japan, Shinkansen lines run at speeds in excess of 260 km/h (160 mph) and are built using standard gauge track with no at-grade crossings. In China, high-speed conventional rail lines operate at top speeds of 350 km/h (220 mph and one maglev line reaches speeds of 431 km/h (268 mph). The world record for conventional high-speed rail is held by SNCF's TGV which clocked 574.8 km/h (357.2 mph) on a test run.
While high-speed rail is usually designed for passenger travel, some high-speed systems also carry some kind of freight service. For instance, the French mail service La Poste owns a few special TGV trains for carrying postal freight.

         For the Thai-China high speed train: China has agreed to invest in Thailand’s first high-speed railway, which was part of the talks between the two countries during Thailand’s Deputy Prime Minister’s visit to China on July 16-23. Thailand’s Deputy Prime Minister Suthep Thaugsuban Wednesday reported to Thai Cabinet that China will provide investment, technology and management support for the 240-kilometre railway line from Bangkok to province of Rayong, the country’s official MCOT news agency reported.
Suthep also disclosed that the two countries may also cooperate in railway projects at the Thai-Lao border of Thailand’s Nong Khai province to Laos and China. The line is expected to also link southern Thailand to Malaysia.
He praised the quality of China’s high-speed railway system, adding that Chinese technology for high-speed trains is highly advanced. China has said it would promote Thailand as a tourist destination among Chinese. It will as well consider buying more rice from Thailand, while adding the rail link development will provide convenience of people in the region to travel and enhance a better logistics and transport system.
The Chinese mainland’s length of high-speed railways in operation has now reached 6,900 kilometers, ranking first in the world, and the length of high-speed railways under construction has reached 10,000-plus kilometers, according to the “Seventh World High-speed Railway Conference” held by the Ministry of Railways on July 28.
The high-speed railway lines, including the Beijing-Tianjin, Wuhan-Guangzhou, Zhengzhou-Xi’an and Shanghai-Nanjing lines, are all in operation and running at speeds of 350 kilometers an hour, making them the fastest in the world.
According to the plan and current construction progress, the total length of high-speed railways in China will exceed 13,000 kilometers by 2012 and will exceed 16,000 kilometers by 2020.

      Summary: Thailand and China are going to repair high-speed railway between the two countries.



http://thainews.prd.go.th/en/news.php?id=255309050018http://www.asianewsnet.net/home/news.php?id=14173

2010年9月20日星期一

Online Catalog and Databases

1 Can you identify the library website,OPAC,library database?  define
    Library we bsite:http// library.spu.ac.th. Databases can be bibliographic or full text.
2 List 5 PDF files of articles you search from Google.

   a   http://econ.tu.ac.th/class/archan/RANGSUN/EC%20460/EC%20460%20Readings/Global%20Issues/Food%20Crisis/Food%20Price/A%20Note%20on%20Rising%20Food%20Price.pdf
   b   http://newsser.fda.moph.go.th/food/file/Publics/Projects/02The%20first%20Workshop%20on%20FAST%20project/03Wednesday,4%20April.pdf
   c    http://www.inmu.mahidol.ac.th/eng/Poster/posterOrapin_edit4.pdf
   d    http://www.wheretoeat-bangkok.com/Assets/Articles/about_aphrodisiacs.pdf
   e    http://www.adb.org/Documents/Papers/soaring-food-prices/soaring-food-prices.pdf

3 What is "an Abstract"?
     
    An abstract is a self-contained, short, and powerful statement that describes a larger work. Components vary according to discipline; an abstract of a social science or scientific work may contain the scope, purpose, results, and contents of the work. An abstract of a humanities work may contain the thesis, background, and conclusion of the larger work. An abstract is not a review, nor does it evaluate the work being abstracted. While it contains key words found in the larger work, the abstract is an original document rather than an excerpted passage.   
     http://www.unc.edu/depts/wcweb/handouts/abstracts.html

4 What is"a full-text article"?
     
     A full-text database is a compilation of documents or other information in the form of a database in which the complete text of each referenced document is available for online viewing, printing, or downloading. In addition to text documents, images are often included, such as graphs, maps, photos, and diagrams. A full-text database is searchable by keyword, phrase, or both.
     http://searchsqlserver.techtarget.com/definition/full-text-database

5 What is your search technique(s) when you 're doing your homework or assignment.
    Usually I like to employ Google search technique .I think it is very  useded to.

2010年9月13日星期一

Reference Sources

1 Where can you find information about Nobel Prize?Who get the Nobel Prize this year?
  I find information about Nobel Prize in http://www.google.com/.
     And it's http://nobelprize.org/nobel_prizes/lists/all/index.html.
      2009, The Nobel Prize in Physics
      Charles K. Kao, Willard S. Boyle, George E. Smith
      2009, The Nobel Prize in Chemistry
      Venkatraman Ramakrishnan, Thomas A. Steitz, Ada E. Yonath
      2009, The Nobel Prize in Physiology or Medicine
      Elizabeth H. Blackburn, Carol W. Greider, Jack W. Szostak
      2009, The Nobel Prize in Literature
      Herta Müller
      2009, The Nobel Peace Prize
      Barack H. Obama
      2009, The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel
      Elinor Ostrom, Oliver E. Williamson

2 Go to Encyclopedia Online at http://library.spu.ac.th Search for the history of automobiles or computer.   Summarize the information you get.
      The first computers were people! That is, electronic computers (and the earlier mechanical computers) were given this name because they performed the work that had previously been assigned to people. "Computer" was originally a job title: it was used to describe those human beings (predominantly women) whose job it was to perform the repetitive calculations required to compute such things as navigational tables, tide charts, and planetary positions for astronomical almanacs. Imagine you had a job where hour after hour, day after day, you were to do nothing but compute multiplications. Boredom would quickly set in, leading to carelessness, leading to mistakes. And even on your best days you wouldn't be producing answers very fast. Therefore, inventors have been searching for hundreds of years for a way to mechanize (that is, find a mechanism that can perform) this task.
       Just a few years after Pascal, the German Gottfried Wilhelm Leibniz (co-inventor with Newton of calculus) managed to build a four-function (addition, subtraction, multiplication, and division) calculator that he called the stepped reckoner because, instead of gears, it employed fluted drums having ten flutes arranged around their circumference in a stair-step fashion. Although the stepped reckoner employed the decimal number system (each drum had 10 flutes), Leibniz was the first to advocate use of the binary number system which is fundamental to the operation of modern computers. Leibniz is considered one of the greatest of the philosophers but he died poor and alone. 
       IBM continued to develop mechanical calculators for sale to businesses to help with financial accounting and inventory accounting. One characteristic of both financial accounting and inventory accounting is that although you need to subtract, you don't need negative numbers and you really don't have to multiply since multiplication can be accomplished via repeated addition.
      The title of forefather of today's all-electronic digital computers is usually awarded to ENIAC, which stood for Electronic Numerical Integrator and Calculator. ENIAC was built at the University of Pennsylvania between 1943 and 1945 by two professors, John Mauchly and the 24 year old J. Presper Eckert, who got funding from the war department after promising they could build a machine that would replace all the "computers", meaning the women who were employed calculating the firing tables for the army's artillery guns. The day that Mauchly and Eckert saw the first small piece of ENIAC work, the persons they ran to bring to their lab to show off their progress were some of these female computers (one of whom remarked, "I was astounded that it took all this equipment to multiply 5 by 1000").
3 What is the difference between general book and reference book?
   Book reports and essays have more differences than similarities. Book reports cover the whole book. Essays focus on a particular aspect, be it a theme, tone, character, or scene from the book. Essays reference moments from the book directly, using quotes, to make their arguments. Book reports only give general plot points. Book reports may offer personal opinions, whereas essays usually give facts. Read more: Differences Between a Book Report and Essay WritingeHow.com http://www.ehow.com/facts_5257536_differences-book-report-essay-writing.html#ixzz0zPGNPSyy
4 When do you need to search information from the reference collection?
   When I understand mangy things that different questions and strange words.

5 What type of reference collection that you like to use most ?and why?
  In Thailand I most like use http://www.google.com/ ,and in China I most like use http://www.baidu.com/. Because I can
find a lot of material of English original edition in google.Baidu is about Chinese material.

2010年9月6日星期一

Libraries

1. Why the library is important for the learning process?

    The library is very important in people'e life.Because people may be in charge of from books and cann't find of the same kind the pattern Books.We at the middle school of books habit to a lot of may not understand thing.

2. My experience in using a library?

     When I in China,I come to National Library of China.There are a lot of books.Now as long as use identification card to be able to borrow and read books.

3. Search 5 book,5 journals and 5 online databases from http://library.spu.ac.th(Identify title and call number)

   A .  title:Food and nutrition                 call number:Q111S42F 1968
         title:The best of Thai cooking       call number:TX893C52B1987
         title:Meal management                 call number:TX353K56M1984
         title:Food                                    call number:AE5M33F1993
         title:Food and farming                  call number:AE5R43F1993


   B . Ingenta:Multi-Science
        ASCE
        Westlaw
        Science Direct
        Emerald Management



    C .  AA  Files Architectural Association
           Acabemic journal of Ratchaphruek college
           Action asia
           Advanced Thailand Geographic
           Academic journal of intitute of phyaical education