We're being loose with our usage of the word talent to include mediocre
Angelina Jolie looks about 80
The shawl and the veins are helping matters.
*
Friday, September 14, 2007
Guess which actress has the talent?
We're being loose with our usage of the word talent to include mediocre
Angelina Jolie looks about 80
The shawl and the veins are helping matters.
*
Thursday, September 13, 2007
Saturday, June 2, 2007
Make money from your website traffic with Adsense
There are many ways to make money from your website traffic. One way is by putting advertising links on your page. A well know and easy implement method is by using Google Adsense. When visitors come to your webpage and click on a google ad you will earn from that click. The amount you will earn is based on the bid amount from the advertiser. You can earn froma few cents to a couple of dollars.
The ads that are displayed will depend on the content of your webpage. You can influence what is displayed by targeting those keywords on your webpage. Where you place the google add will also influence the number of clicks you get. Ads within the primary content of your page have a high click rate where as ads on the bottom right of you webpage will have a low click rate. You should review the 'heat map' under the optimization tips on the Google Adsense website.
Although Google Adsense is a great place for advertiser, there are some publishers that cheat the system. I have heard of syndictates that click ads on there partner sites and thus cheating advertises. I have even read in a forum where this one person tells how he makes so much money by getting all his relatives to click on the ads on his website, then he wonders why Google suspended his account.
Play your cards right and you could be pulling in a great income from Google Adsense.
The ads that are displayed will depend on the content of your webpage. You can influence what is displayed by targeting those keywords on your webpage. Where you place the google add will also influence the number of clicks you get. Ads within the primary content of your page have a high click rate where as ads on the bottom right of you webpage will have a low click rate. You should review the 'heat map' under the optimization tips on the Google Adsense website.
Although Google Adsense is a great place for advertiser, there are some publishers that cheat the system. I have heard of syndictates that click ads on there partner sites and thus cheating advertises. I have even read in a forum where this one person tells how he makes so much money by getting all his relatives to click on the ads on his website, then he wonders why Google suspended his account.
Play your cards right and you could be pulling in a great income from Google Adsense.
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Friday, May 18, 2007
Precision rectifier
From Wikipedia, the free encyclopedia
Jump to: navigation, search
The super diode or precision rectifier is a configuration obtained with an operational amplifier in order to have a circuit behaving like an ideal diode or rectifier. It can be useful for high-precision signal processing.
The basic circuit implementing such a feature is the following:
where RL can be any load. When the input voltage is negative, there is a negative voltage on the diode, too, so it works like an open circuit, there is no current in the load and the output voltage is zero.
When the input is positive, it is amplified by the operational amplifier and it turns the diode on. There is current in the load and, because of the feedback, the output voltage is equal to the input.
In fact the threshold of the super diode is not actually zero, as it should be for an ideal one, but it equals the threshold of the normal diode divided by the gain of the operational amplifier, that is almost zero.
This basic configuration has a problem so it is not commonly used: when the input becomes (even sightly) negative, the output of the operational amplifier can easily become greater than the voltage supplied to the op-amp, thus causing saturation. Then, if the input becomes positive again, the op-amp has to get out of the saturation to amplify again. This change takes some time, and this greatly reduces the frequency response of the circuit.
An alternative version is the following:
In this case, when the input is greater than zero, D2 is ON and D1 is OFF, so the output is zero. When the input is less than zero, D2 is OFF and D1 is ON, and the output is like the input with an amplification of − R2 / R1. Its transfer characteristic is the following:
This circuit has the benefit that the op-amp never goes in saturation, so the only thing affecting its frequency response is the amplification and the gain-bandwidth product.
Similar circuitry can be used to create a precision full-wave rectifier circuit.
[edit] Peak detector
With little modifications basic precision rectifier can be used also for detecting peak levels of signal. In the following circuit a capacitor keeps the peak voltage level of signal and switch can be used for resetting detected level.
From Wikipedia, the free encyclopedia
Jump to: navigation, search
The super diode or precision rectifier is a configuration obtained with an operational amplifier in order to have a circuit behaving like an ideal diode or rectifier. It can be useful for high-precision signal processing.
The basic circuit implementing such a feature is the following:
where RL can be any load. When the input voltage is negative, there is a negative voltage on the diode, too, so it works like an open circuit, there is no current in the load and the output voltage is zero.
When the input is positive, it is amplified by the operational amplifier and it turns the diode on. There is current in the load and, because of the feedback, the output voltage is equal to the input.
In fact the threshold of the super diode is not actually zero, as it should be for an ideal one, but it equals the threshold of the normal diode divided by the gain of the operational amplifier, that is almost zero.
This basic configuration has a problem so it is not commonly used: when the input becomes (even sightly) negative, the output of the operational amplifier can easily become greater than the voltage supplied to the op-amp, thus causing saturation. Then, if the input becomes positive again, the op-amp has to get out of the saturation to amplify again. This change takes some time, and this greatly reduces the frequency response of the circuit.
An alternative version is the following:
In this case, when the input is greater than zero, D2 is ON and D1 is OFF, so the output is zero. When the input is less than zero, D2 is OFF and D1 is ON, and the output is like the input with an amplification of − R2 / R1. Its transfer characteristic is the following:
This circuit has the benefit that the op-amp never goes in saturation, so the only thing affecting its frequency response is the amplification and the gain-bandwidth product.
Similar circuitry can be used to create a precision full-wave rectifier circuit.
[edit] Peak detector
With little modifications basic precision rectifier can be used also for detecting peak levels of signal. In the following circuit a capacitor keeps the peak voltage level of signal and switch can be used for resetting detected level.
Monday, May 7, 2007
Friday, May 4, 2007
hi talents
the mar baselos college is organised a very good inter college festival where the students can participate from other colleges.
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