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Free relevant data on Neodymium Yag

Posted in laser Etching Machines
Aug
20
laser-etching-machines Free relevant data on Neodymium Yag

It’s lightweight and looks rather sleek although the sound quality is sub par. I would not recommend this to anyone who listens to rap or hip hop music. You will be extremely disappointed. For the price I think you could definitely find a better pair of headphones.

how many wavelenghts does a 34ps burst have?
Pulsed lasers are used in science and medicine to produce Neodymium Yag short bursts of EM energy. If a Neodymium-YAG laser produces infrared light with a wavelength of 1052 nm, how many wavelenths (to the nearest whole number) are contained in a short burst of 34 ps?
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Neodymium Yag

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2 Responses to “Free relevant data on Neodymium Yag”

  1. Doan says:
    August 20, 2010 at 7:07 pm

    These headphones are exactly what I was looking for. They are lightweight and don’t feel like a clamp on your head. The earpieces are soft and very comfortable. I can use these for much longer times than I have used other headphones. Plus the sound is very good. I like the sound better or at least as much as much more expensive ones. I recommend them for computer use and for the less fussy audiophile (like me). I reserve final judgement because I haven’t used these to listen to a great source on demanding music recently.

  2. Lubbe says:
    August 21, 2010 at 7:10 am

    I tend to go through headphones in a matter of months so this time I was looking for a pair that would stand up to the “rugged” life of a college student but still provide me the sound quality I’ve grown accustomed to. Also comfort was a big priority: I like to wear headphones just to tone down ambient noise when walking, studying – pretty much all throughout my day. So I can’t deal with a pair that clamps down on the pinnae too tightly. In all of these respects the ATH-FC700A was the right choice.The cushions of this pair are rather plush and the headband adjusts to fit snugly, but not tightly. I have average size ears (maybe on the small side, considering I wore the AKG Acoustics K-27i Folding Closed-back Headphones with Ambient Noise Attenuation and With In Line Volume Control for hours at a time without a problem) and the cups sit very lightly on the edge of my outer ear. In terms of supra- vs. circumaural these come in at somewhere in between: the back edge of my ears are encased by the cups but the lobe and the top of my pinnae are pinned under them. Fit like this is a very subjective thing but hopefully that gives you some sort of idea. Anyway.To be fair I haven’t yet had a continuous day with them on, but from what I can tell comfort will not be an issue with these ‘phones. Perhaps the leatherette pads will trap heat, but I personally don’t think it would get to the point of discomfort. The only problems I could perhaps see are for people with large heads and the bald(ing): either the pads will squeeze your ear too tightly or the very top of the headband will rub your scalp. There is a plastic sort of cushion on the headband, and really the headband sort of “floats” at the top of the skull, but if you were to extend the headband to its longest setting the middle of the it would tap the top of your head. Now if you have hair that’s not a problem as the “tapping” is pretty light, but without the added cushion of hair it would probably get uncomfortable quickly.As with my prior set of ‘phones, the Sennheiser PX 100 Collapsible Headphones, you have to be a bit careful with these. If you toss them into your bag carelessly, folded or not these will probably incur damage. Fortunately these are less “flimsy” than the PX100s but unfortunately there are not nearly as compact; also, their case is a little leatherette bag – no hard shell protection here. Still, I’m a college student and have yet to bust them. In all fairness I’m pretty attentive and haven’t managed to snag the cord even once.About the cord…the Y joint is a bit of a pain. There is no slide to keep both sides together. However, the point of connection with the physical cup is reinforced with some kind of rubbery moulding. It could be better but I think that it will make the channels more resilient – at least, compared to the PX100s. I went through two pairs of those and both had the right earcup crap out on me – one in 9 months, one in 6. Now I think the lack of any kind of shock absorber fronting wire connections (to the cups, to the physical plug) had something to do with that but I can’t say for sure. In either case I feel much better seeing the rubbery reinforcement at ALL connections on this pair.I have had these for only a short period of time so I can’t attest for the long-term durability or say much about the post-burn in sound quality. However, the initial sound quality is still better than what most people are used to. Highs can be a bit too bright, and there remains sibilance with cymbals and some vocalists (most notably, the females), but the detail in the bass and mid ranges is good. These supposedly get better with time so I will update this review once the sound settles.From what I’ve seen, this is a worthwhile purchase.