Selasa, 26 Juni 2012

diode Bridge

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Which serves to rectify pawer supply, this diode is a silicon diode is assembled into a bridge and packed into a single component. In the market sold various forms of the diode bridge with a variety of capacities. The size of the main diode bridge is the maximum voltage and amperage.



In general, the diode can be used among others to:
A. safety
2. rectifier
3. Voltage regulator
4. modulator
5. frequency controller
6. indicator
7. switch

Zener diode

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       Zener diode is a diode which has the property that the voltage reversal very stable, this voltage is called the zener voltage. These diodes are widely used for the voltage divider. Type of zener diode voltage divided by the boundary. For example 12 V, this means that the zener diode to limit voltage greater than 12 V to 12 V or Above the zener voltage, this diode will deliver electricity in two directions. this diode used as a voltage stabilizer or voltage regulator. These diodes form a diode as usual, differences can only be seen from the type that is written on bodynya and zener voltage seen at vademicum.

Counter counting system

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PI I make a counter timing, the tool is planned to be in use at exhibitions, as it works as a detector of how many visitors are coming, so that we do not have to count one by one the visitors who come .. hopefully my PI smoothly. amen my supervisor is a pack of Robi, he helped me in writing and in the manufacture of tools, many of the difficulties in making this PI tool but I am sure I will, hopefully .. well I pray ya.semoga PI tools tHE CALCULATION tIME COUNTER finished on time.

Program Multiplexer

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Mmultiplexer program using IF statement
Using VHDL .....

Description:
a, b, c, d is the input data
s [1:0] is the data for the MUX selector
o Data for Output

Program
library ieee; 
use ieee.std_logic_1164.all; 

entity mux is 
port (a, b, c, d : in std_logic; 
s : in std_logic_vector (1 downto 0); 
o : out std_logic); 
end mux; 
architecture archi of mux is 
begin 
process (a, b, c, d, s) 
begin 
if (s = "00") then o <= a; 
elsif (s = "01") then o <= b; 
elsif (s = "10") then o <= c; 
else o <= d; 
end if; 
end process; 
end archi;

User Interface Management System

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    UIMS is a technique for separating application functionality problems with the computer interface design. A large number of software architecture based on the assumption that the functionality and user interface to the software are two things that have different objectives that can be handled separately. The purpose of this separation is to increasing ease of maintenance and adaptation of software. Some UIMS architecture is the Model-View-Controller, linguistic model, the Seeheim model, Higgins UIMS, and Arch model. On linguistic models are Presentation layer, Dialog control layer, and Application layer. This layer corresponds to the lexical, syntactic and semantic layers of formal language theory. The UIMS system usually there is only one kind of paradigm that is implemented. For example, Model-View-Controller is implemented in java (swing).

    A number of user interface architecture has proven to be useful, but also raises new problems. At the level of feedback systems with high interaction and semantics (direct manipulation interface) boundary between the application and user interface is difficult or impossible to control.

sumber : http://www.interaction-design.org/
                http://en.wikipedia.org/wiki/User_interface_management_systems

ups and downs of learning kanji

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         Studying kanji is a scourge for beginners who want to learn Japanese. The number of letters that unmitigated reach about 160,000 characters, but that must be learned and used everyday around 2000 characters. A kanji characters have two pieces of how to read the how to read Japanese or kunyomi (訓読み) and how to read chinese or onyomi (⾳ 読み). Not only that, each has a different way of reading as well, such as letters hi (日) which means the sun has an kunyomi: hi (ひ), bi (び), ka (か) and has onyomi: Nichi (ニチ) / ni (ニ), jitsu (ジツ). Each letter used varies from the other letters that follow the characters. For example: 日本 is pronounced "nihon" but 日 曜 日 read "nichiyobi". In addition to how to read a variable, write kanji quite difficult depending on the kanjinya grade. example 日 kanji characters easier to write than 葵. to more easily memorize how to write kanji, one of the best way is to memorize the letters of the radicals. letter radicals are kanji that make up other kanji, for example: sakura (桜 ) is formed from the letters ki (木 / tree) and onna (女 / female). of all the difficulties in studying kanji, after successfully learning all we will surely feel proud and more confident. Do not give up.

CLOUD COMPUTING ARCHITECTURE USING MPLS-BASED NETWORK

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Abstract
                  Cloud Computing as a utility computing, has the potential to transform most of the
IT industry, making software as a service. The new developers with innovative ideas for Internet services no longer require a large capital outlay in hardware to distribute their service or labor to operate it. They do not have to worry about overprovisioning for a service whose popularity does not meet their predictions, thus wasting costly resources, or underprovisioning to one that is becoming very popular, thus missing potential customers and revenue.
            Obviously because cloud computing relies on internet connection, then the performance of Internet connection will affect the viability of cloud computing. Cloud computing mengandalakan centralized remote storage on the cloud server, users access the data that will be in trouble if there is a problem or bottleneck of the network. MPLS (Multi Protocol Label Switching) is a better method than to route IP packets. MPLS technology has advantages for sending packets with a shorter delay, because it replaces the IP header that requires a larger overhead than the MPLS header is smaller and shorter processing time when the packet arrives at the router. In this paper the test results will be discussed from the MPLS cloud computing system as the backbone network. Parameters to be tested is the delay, jitter, packet loss and throughput.

keyword : cloud computing, mpls
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