Selasa, 26 Juni 2012
diode Bridge
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
Counter counting system
Program Multiplexer
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
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
CLOUD COMPUTING ARCHITECTURE USING MPLS-BASED NETWORK
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
WHAT IS FPGA ????
FPGA stands for Field Programmable Gate Array, which when translated suppose - suppose it means is a field (which in this case is an IC chip) that contains a number of logic gates that can be programmed. FPGAs have the physical form such as IC (Integrated Circuit). FPGA is a combination of PLD and ASIC technologies. PLD (Programmable Logic Device) itself is an IC that has a logic gate circuit and can be programmed while the ASIC (Application Specific Circuit Integreted) is an IC designed for specific needs that have advantages in speed, but expensive to manufacture. Because the FPGA is a combination of PLD and FPGA so he has an excess of both, and can overcome the existing deficiencies in the PLD and ASIC. Some of the advantages of FPGA are:
- FPGA cheaper than PLD and ASIC
- FPGA is easier and faster than the implementation
- FPGAs have the advantage of the PLD can be programmed repeatedly
- FPGAs have the advantages of an ASIC that has a complex function
Library VHDL
LIBRARY IEEE :
- math_real
- numeric_bit
- numeric_std
- std_logic_1164
- std_logic_arith
- std_logic_signed
- std_logic_unsigned
- vital_timing
LIBRARY STD :
- standard
- textio
Changing the scanned pdf to html
When looking for a source of reference, I get a pdf file that the content/text in the form of images. As a result I could not copy the text (Lol... bad habit). There is one way to change the scanned pdf into html, by using google. If you get a pdf file of search results, then Google will display an option to display it in html form. This method is only useful if the pdf file indexed all by google and only displays the first 20 pages alone.
There is one other way to convert pdf files into a set of images (.png, .jpg), and then scan the image with OCR, and then to output a HTML or text file. Since I (the author) using the operating system GNU / linux ubuntu, then the method below only applies to OS GNU/Linux only (for the windows version, ask someone else!).
Just go ahead....
First install xpdf, imagemagick, and ocropus
sudo apt-get install xpdf imagemagick ocropus
use this script to convert. Save with the name "pdf2txt" (without the quotes).
click here to view the code.
How to use:
Suppose you want convert "makalah.pdf" into the html file, use the command:
./txt2pdf makalah.pdf > makalah.html
the above command will convert "makalah.pdf" and output "makalah.html".
Sabtu, 07 April 2012
Active & Passive Sentences
Sabtu, 17 Maret 2012
Subject and Verb Agreement
The basic rule states that a singular subject takes a singular verb, while a plural subject takes a plural verb.
NOTE: The trick is in knowing whether the subject is singular or plural. The next trick is recognizing a singular or plural verb.
Hint: Verbs do not form their plurals by adding an s as nouns do. In order to determine which verb is singular and which one is plural, think of which verb you would use with he or she and which verb you would use with they.
Example:
talks, talk
Which one is the singular form?
Which word would you use with he?
We say, "He talks." Therefore, talks is singular.
We say, "They talk." Therefore, talk is plural.
Rule 1
Two singular subjects connected by or or nor require a singular verb.
Example:
My aunt or my uncle is arriving by train today.
Rule 2
Two singular subjects connected by either/or or neither/nor require a singular verb as in Rule 1.
Examples:
Neither Juan nor Carmen is available.
Either Kiana or Casey is helping today with stage decorations.
Rule 3
When I is one of the two subjects connected by either/or or neither/nor, put it second and follow it with the singular verb am.
Example:
Neither she nor I am going to the festival.
Rule 4
When a singular subject is connected by or or nor to a plural subject, put the plural subject last and use a plural verb.
Example:
The serving bowl or the plates go on that shelf.
Rule 5
When a singular and plural subject are connected by either/or or neither/nor, put the plural subject last and use a plural verb.
Example:
Neither Jenny nor the others are available.
Rule 6
As a general rule, use a plural verb with two or more subjects when they are connected byand.
Example:
A car and a bike are my means of transportation.
Rule 7
Sometimes the subject is separated from the verb by words such as along with, as well as, besides, or not. Ignore these expressions when determining whether to use a singular or plural verb.
Examples:
The politician, along with the newsmen, is expected shortly.
Excitement, as well as nervousness, is the cause of her shaking.
Rule 8
The pronouns each, everyone, every one, everybody, anyone, anybody, someone, andsomebody are singular and require singular verbs. Do not be misled by what follows of.
Examples:
Each of the girls sings well.
Every one of the cakes is gone.
NOTE: Everyone is one word when it means everybody. Every one is two words when the meaning is each one.
Rule 9
With words that indicate portions—percent, fraction, part, majority, some, all, none, remainder, and so forth —look at the noun in your of phrase (object of the preposition) to determine whether to use a singular or plural verb. If the object of the preposition is singular, use a singular verb. If the object of the preposition is plural, use a plural verb.
Examples:
Fifty percent of the pie has disappeared.
Pie is the object of the preposition of.
Fifty percent of the pies have disappeared.
Pies is the object of the preposition.
One-third of the city is unemployed.
One-third of the people are unemployed.
NOTE: Hyphenate all spelled-out fractions.
All of the pie is gone.
All of the pies are gone.
Some of the pie is missing.
Some of the pies are missing.
None of the garbage was picked up.
None of the sentences were punctuated correctly.
Of all her books, none have sold as well as the first one.
NOTE: Apparently, the SAT testing service considers none as a singular word only. However, according to Merriam Webster's Dictionary of English Usage, "Clearly none has been both singular and plural since Old English and still is. The notion that it is singular only is a myth of unknown origin that appears to have arisen in the 19th century. If in context it seems like a singular to you, use a singular verb; if it seems like a plural, use a plural verb. Both are acceptable beyond serious criticism" (p. 664).
Rule 10
The expression the number is followed by a singular verb while the expression a number is followed by a plural verb.
Examples:
The number of people we need to hire is thirteen.
A number of people have written in about this subject.
from :