Peace, mercy and blessings of God Welcome to your channel abdelraouf89 on youtube
Today we will talk about zero crossing
So what is ZERO CROSSIN?
ZERO CROSSING Is an electrical term
It is the point at which the function changes its signal
This means that the positive sign changes into negative sign and this is very clear in sin wave
as shown in fig up in positive and down in negative
The point of contact with the x-axis is the zero crossing point
That is, the point at which there is no change in the function
Find out how many times the of ZERO CROSSING for the function It is used in mathematics, electronics,Acoustics, and image processing
For example in electronics We know that in the alternating current the zero crossing point is the point where there is no electrical current, either in the case of the sinusoidal wave or any other waveform
Zero crossing occurs twice per cycle
There is a device to detect the number of times the function reaches the zero crossing per cycle
If the wave several cycles
Through it, I can know how many times I get to zero
Zero transit is very important in AC circuits that send digital data (digital circuits) such as modems and home control systems X10
And digital command control systems such as Lionel and other AC models used for data transmission
Also, by knowing the zero crossing number, the amount of speech is known and used in the audio processing
For example, the microphones are used zero-crossing for audio processing
It does not depend on the sinusoidal wave, but any wave has a zero crossing which it can control the sound
What is very important to us is when switching or connecting power, it is very good to be separated and connected at zero crossing
where at this point there is no current It does not affect the machine
For example, when the transformer is switched on , it is damaged and one of the reasons for this may be the connection or separation at the point other than zero crossing
and the CB which found is not designed to work in zero crossing point
and this is very important for circuit breakers which used with transformers
where the best time to connect and disconnect is at zero crossing point
where some times when you connect transformers are damaged because when you connect or disconnect it happened far than zero crossing point
the conclusion is when you wanna make any change in the circuit you can do it at zero crossing
also used in image processing
one program like photo shop the most famous program in image modifications use zero crossing in this process
it uses the summation of pixels to gather to do its modifications
if you get one small photo from the internet, the program make auto modification for the images
also photo filters like that used in instgram
like golden photos or etc
this is also using zero crossing
it uses some programmable methods by java script and other ways
and making effects also
this was our video to day if you get benefits pleas like ,share and subscribe
For more infomation >> what is ZERO CROSSING? - Duration: 5:32.-------------------------------------------
5 Tricks to know if your partner is unfaithful without checking his cell phone - Duration: 1:57.
For more infomation >> 5 Tricks to know if your partner is unfaithful without checking his cell phone - Duration: 1:57. -------------------------------------------
Is it a function? - Duration: 7:20.
For more infomation >> Is it a function? - Duration: 7:20. -------------------------------------------
Korean Music - Our wish is Unification/Unser Wunsch ist Vereinigung (deutsch/engl sub) - Duration: 3:36.
Our cherished hopes are for unification
even in dreams we are for unification
we offer our lives for unification
Unification please come along!
Unification will save the people
Unification will save the nation
Unification please come quickly!
Unification please come along!
Our cherished hopes are for self-sufficiency
even in dreams we are for self-sufficiency
we offer our lives for self-sufficiency
Self-sufficiency please come along!
Self-sufficiency will save the people
Self-sufficiency will save the nation
Self-sufficiency please come quickly!
Self-sufficiency please come along!
Our cherished hopes are for democracy
even in dreams we are for democracy
we offer our lives for democracy
Democracy please come along!
Democracy will save the people
Democracy will save the nation
Democracy please come quickly!
Democracy please come along!
-------------------------------------------
Is Sarah Huckabee Sanders About To Be FIRED? - Duration: 3:19.
Is it possible that Donal Trump might be considering firing Sarah Huckabee Sanders?
That's the position that Politico's Annie Carnie took recently during an appearance
on MSNBC's Hardball when she said that DC insiders are talking about the fact that Huckabee
Sanders is very likely on the chopping block and might be axed from her position as White
House Press Secretary by the end of the summer, if not before then.
Now, let's keep in mind, Sarah Huckabee Sanders has had this position for less than a year
and she is already on Donald Trump's bad side, according to this Politico reporter who spoke
with insiders in DC and possibly even sources at the White House.
And actually, her position makes a lot of sense when you consider the fact that Donald
trump is angry about all the leaks coming out of the White House.
We know somebody from the communications office leaked Kelly Sadler's statement about John
McCain to the press, so we know there's at least one leaker in the communications department,
and because of that, they've actually stopped holding meetings because they're so afraid
that whatever's talked about is going to get leaked to the press.
So Trump and Huckabee Sanders understand that there is a leak within the communications
department.
Somebody there brave enough to give the press accurate information, 'cause God knows Huckabee
Sanders isn't going to give it to us.
So could Donald Trump actually be considering firing Sarah Huckabee Sanders?
Honestly, I don't think so.
I think that is probably one of the last people that Donald Trump would ever fire from his
administration.
I'm pretty sure everybody agrees that Huckabee Sanders, given her track record defending
Donald Trump, probably not the leaker, right?
She is more like a Kellyanne Conway type character.
Been around for a long time, last in this position a hell of a lot longer than anybody
else who had it previously, and she has absolutely nor problem going out there every day and
lying on behalf of the President to make him look better.
That is the kind of loyalty that Donald Trump values above anything else in life, other
than money.
Kellyanne Conway does it, that's why she's around.
So I have no reason to think, regardless of what the DC insiders are saying, that Sarah
Huckabee Sanders is going anywhere.
She would have to voluntarily quit, or suddenly develop a conscience and a moral compass in
order for Donald Trump to want to get rid of her.
I don't think she's going to leave voluntarily, and I certainly don't think that she is about
to develop any kind of morals to speak of.
She's not going to suddenly walk out to that podium during a press briefing and start telling
us the truth about the chaos within the Trump administration.
So her job, regardless of what the insiders say, I think, is completely safe.
We're going to be dealing with many, many more months, possibly even years of Huckabee
Sanders acting as the face of this administration and the number one liar from the Trump administration.
-------------------------------------------
Meghan Markle Is Absolutely Glowing While Waving to Fans Ahead of Royal Wedding - Duration: 2:42.
Meghan Markle Is Absolutely Glowing While Waving to Fans Ahead of Royal Wedding
The bride-to-be and her fiance, Prince Harry, were photographed leaving Kensington Palace on Friday, just one day before their royal wedding at St. Georges Chapel.
The former Suits star, chic in navy blue and rocking her slighty shorter do, couldnt have looked happier, flashing a giant grin as she waved to fans while she and Prince Harry made their way to Windsor Castle.
The two appeared to be in good spirits throughout the duration of their car ride, exchanging loving looks and smiles.
Meghan, 36, and Harry, 33, were also spotted out and about on Thursday, en route to the castle for a wedding rehearsal with Prince William and Kate Middleton as well as afternoon tea with Queen Elizabeth II.
A source tells ET that Meghans mother, Doria Ragland, is expected to meet Her Royal Highness on Friday, after meeting William, Kate, Prince George, Princess Charlotte, Prince Charles -- who will be walking Meghan down the aisle -- and Camila earlier this week.
ET will be liveblogging the royal wedding on Saturday.
Starting at 4 a.m. ET/1 a.m. PT, well be giving you minute-by-minute updates of all the excitement surrounding Meghan and Harrys special day, including photos of all the celebrity guests in attendance and, of course, the first look at Meghans bridal gown.
-------------------------------------------
Lexus IS 300h Hybrid Business Line - Duration: 1:13.
For more infomation >> Lexus IS 300h Hybrid Business Line - Duration: 1:13. -------------------------------------------
(2018) Go Forth! Captain Toad (What kind of game this is) (English captions available) - Duration: 1:29.
Captain Toad appears on the Nintendo Switch!
Search through 'miniature garden' style courses that are full of tricks and traps!
What kind of game is this?
1. Set off to reach the Power Star.
2. Rotate the course and discover a pathway!
3. Discover a pathway by manipulating obstacles!
4. Here's the goal!
Over 70 'miniature garden' style courses are included!
There's also a miniature course from Super Mario Odyssey!
Share your Switch with others in co-operative play.
Also simultaneously seeing release on the Nintendo 3DS.
3980 Yen. July 13th, 2018. Pre-orders currently being accepted.
Không có nhận xét nào:
Đăng nhận xét