Jul 27, 2008

New Thermoelectric Material

ဓာတ္ေငြ႕ ရဲ႕ စြမ္းေဆာင္ရည္ကို ဆန္႕ထုတ္ေပးႏိုင္မဲ႕ ပစၥည္းသစ္
ခ်ီကာဂို (႐ိုက္တာ)
အပူစြမ္းအင္ကေန လွ်ပ္စစ္ စြမ္းအင္ကို ေျပာင္းေပးႏိုင္တဲ႕ စြမ္းေဆာင္ရည္ ျမင္႕မားတဲ႕ ပစၥည္းသစ္တစ္မ်ိဳးက တေန႕ေန႕ တခ်ိန္ခ်ိန္မွာ ဓာတ္ေငြ႕ တစ္ဂါလံ အသံုးျပဳမႈရဲ႕ စြမ္းရည္ အျမင္႕ဆံုး ရ႐ွီႏိုင္ေစဖို႕ အေထာက္အကူ ျပဳလာလိမ္႕မယ္ လို႕ အေမရိကန္ ႏိုင္ငံက သုေတသီေတြက ၾကာသပေတးေန႕မွာ ေျပာၾကားလိုက္တယ္။ ယာဥ္ေ႐ြ႕လ်ားႏိုင္ဖို႕နဲ႕ ေရဒီယိုလို၊ ေရသုတ္တံလို ကိရိယာေတြ အတြက္ ပံုေသ ဓာတ္ဆီနဲ႕ ေမာင္းႏွင္တဲ႕ အင္ဂ်င္ တစ္လံုးက ထုတ္ေပးႏိုင္တဲ႕ စြမ္းအင္ရဲ႕ 25 ရာႏံႈးေလာက္ကိုပဲ အသံုးျပဳတယ္လို႕ ဆိုပါတယ္။ က်န္တဲ႕ စြမ္းအင္ အမ်ားအျပားကေတာ႕ အိပ္ေဇာပိုက္ကေန ဆံုး႐ံႈး ကုန္တယ္လို႕ ေျပာပါတယ္။

လက္႐ွိ သံုးေနတဲ႕ ပစၥည္းထက္ ေကာင္းတဲ႕ အပူကေန လွ်ပ္စစ္ေျပာင္း ကိရိယာနဲ႕ဆိုရင္ ဒီဆံုး႐ံႈးသြားတဲ႕ စြမ္းအင္ အခ်ိဳ႕ အ၀က္ကို ျပန္လည္ သံုးစြဲႏိုင္မယ္လို႕ ပါဆာဒီးနားက ကားလ္တက္နဲ႕ ကိုလံဘတ္စ္မွာ႐ွိတဲ႕ အိုဟိုင္းယိုးတကၠသိုလ္က သုေတသီေတြက တြက္ဆၾကပါတယ္။

ဒီပစၥည္းက အလုပ္ေတြ အားလံုး လုပ္ႏိုင္တယ္ဗ်။ ေရေႏြးေငြ႕ အင္ဂ်င္၊ ဓာတ္ေငြ႕နဲ႕ ဒီဇယ္ အင္ဂ်င္ ေတြလို သမား႐ိုးက် အင္ဂ်င္ေတြလိုပဲ သူက လွ်ပ္စစ္ စြမ္းအင္ ထုတ္ေပးႏိုင္တယ္။ လွ်ပ္စစ္ ဂ်င္နေရတာေတြဆီကို ေျပာင္းေပးရာ မွာေတာ႕ သူက ေရေႏြးေငြ႕နဲ႕ ဓာတ္ေငြ႕ေတြေနရာမွာ အီလက္ထ႐ြန္ေတြကို အစားထိုး အသံုးျပဳတယ္။ ၿပီးတာနဲ႕ လွ်ပ္စစ္စြမ္းအင္ တိုက္႐ိုက္ ထုတ္ေပးတာပဲ လို႕ ပေရာဂ်က္ ေခါင္းေဆာင္ ဂ်ိဳးဇက္ ဟာရီမန္စ္က ေျပာတယ္လို႕ ေၾကညာခ်က္မွာ ေဖာ္ျပတယ္။

ဒီပေရာဂ်က္မွာ ပါ၀င္ ေဆာင္႐ြက္တဲ႕ ကားလ္တက္ က ဂ်က္ဖ္ ဆႏိုက္ဒါ ကလည္း အပူကေန လွ်ပ္စစ္စြမ္းအင္ ေျပာင္းတဲ႕ ဒီ ကိရိယာဟာ ေမာ္ေတာ္ယာဥ္ရဲ႕ ေလာင္စာ စြမ္းေဆာင္ရည္ကို 10 ရာခိုင္ႏံႈးအထိ တိုးလာေစတယ္လို႕ ဆိုပါတယ္။ နာဆာရဲ႕ ဂ်က္အင္ဂ်င္ လည္ပတ္စနစ္ သုေတသန လုပ္ငန္းမွာ အေစာပိုင္း ကတည္းက အလားတူ ပစၥည္းမ်ိဳး ထုတ္ဖို႕ စိုင္းျပင္းခဲ႕တဲ႕ ဆႏုိက္ဒါ ကတည္း ေျပာပါတယ္။ ခုလိုမ်ိဳး ပစၥည္း ထုတ္ဖို႕ အႀကံအစဥ္ ႐ွိေနခဲ႕တာ ၾကာပါၿပီ။ ဒါေပမဲ႕ ေရနံ တစ္စည္ ေဒၚလာ 20 ေလာက္ ျဖစ္ေနစဥ္က ဒီ အႀကံအစဥ္ကို ဘယ္သူမွ စိတ္၀င္တစား မ႐ွိၾကပါဘူး လို႕ ဆိုပါတယ္။

ခု စြမ္းအင္ေစ်းက ငါးဆေလာက္ ခုန္တက္သြားတဲ႕ခါက်မွ ေစာေစာက ႐ွိႏွင္႕ေနတဲ႕ ခုလို အစားထိုး နည္းပညာဟာ ပိုၿပီး အသံုးတည္႕လာတဲ႕ သေဘာပါပဲ လို႕ ဆႏိုက္ဒါက သူနဲ႕ တယ္လီဖုန္း အင္တာဗ်ဴးမွာ ေျပာျပပါတယ္။ ဒီစနစ္ကို ေနာက္ 5 ႏွစ္ကေန 10 ႏွစ္အတြင္း လက္ေတြ႕ အသံုးျပဳလာႏိုင္လိမ္႕မယ္လို႕ သူက ယံုၾကည္ေနပါတယ္။ တကယ္ လက္ေတြ႕ သံုးစြဲလာႏိုင္မႈက ဒီစနစ္ ထုတ္လုပ္မႈ ကုန္က်စရိတ္နဲ႕ စြမ္းအင္ေစ်းကြက္ အေပၚမွာ မူတည္ပါလိမ္႕မယ္။ အေရအတြက္ အေျမာက္အျမား ထုတ္လုပ္ႏိုင္မယ္ ဆိုရင္ေတာ႕ ဒီစံနစ္ကို အေမရိကန္ 10 ေဒၚလာ သို႕မဟုတ္ ဒီထက္ နည္းတဲ႕ ေစ်းႏံႈးနဲ႕ ထုတ္လုပ္ ေပးႏိုင္ပါလိမ္႕မယ္လို႕ သူက ဆက္ေျပာပါတယ္။

အပူကေန လွ်ပ္စစ္ ေျပာင္းေပးႏိုင္တဲ႕ လက္႐ွိ ေစ်းကြက္မွာ သံုးေနတဲ႕ စြမ္းရည္ အျမင္႕ဆံုး ကိရိယာက Rating 0.71 ႐ွိိတဲ႕ Sodium-doped lead telluride ေခၚတဲ႕ သတၱဳစပ္ တစ္မိ်ဳးပါ။ Lead Telluride ကို Thallium နည္းနည္း ထပ္ေပါင္း ထည္႕ႏိုင္မယ္ဆိုရင္ Rating ကို 1.5 အထိ ႏွစ္ဆ တိုးႏိုင္ပါလိမ္႕မယ္။ စမ္းသပ္မႈေတြ အရ အင္ဂ်င္ေတြမွာ တပ္ဆင္ အသံုးျပဳဖို႕ အသင္႕ေတာ္ဆံုး ျဖစ္ပါလိမ္႕မယ္။ ဒီကိရိယာ အသစ္က 450 ဒီဂရီ ဖာရင္ဟိုက္ (230 ဒီဂရီ ဆဲလ္စိယပ္စ္) ခန္႕မွာ လက္႐ွိ ကိရိယာေတြနဲ႕ စြမ္းရည္တူ အပူမွ လွ်ပ္စစ္ကို ေျပာင္းေပးႏိုင္တာ ေတြ႕႐ွိရပါတယ္။ အပူခ်ိန္ ပိုမို ျမင္႕မားမယ္ဆိုရင္ စြမ္းေဆာင္ရည္ ပိုမို ျမင္႕မားတယ္။ 950 ဒီဂရီ ဖာရင္ဟိုက္ (500 ဒီဂရီ ဆဲလ္စိယပ္စ္)မွာ သူ႕ရဲ႕ အျမင္႕ဆံုး Rating 1.5 ထိ႐ွိပါတယ္။ ပံုမွန္ေမာ္ေတာ္ကား အင္ဂ်င္လို စြမ္းအင္ စနစ္ေတြရဲ႕ အပူခ်ိန္သည္လည္း ဒီဂရီ ဖာရင္ဟိုက္ 450 နဲ႕ 950 ၾကားပါပဲ လို႕ ဟာရီမန္စ္ က ေျပာပါတယ္။

သုေတသီေတြက မူပိုင္ခြင္႕ ေလွ်ာက္ထားၿပီး ဒီပစၥည္းကို မြမ္းမံ ေနၾကဆဲ ျဖစ္ပါတယ္။ ထပ္မံ ႐ွာေဖြေတြ႕ရွိမႈေတြနဲ႕ လက္ရွိ ေတြ႕ရွိမႈေတြ ေပါင္းစပ္ၿပီး ဒီပစၥည္းရဲ႕ စြမး္ေဆာင္ရည္ကို ပိုမို ျမွင္႕တင္ ထုတ္လုပ္ႏိုင္မယ္လို႕ ယံုၾကည္ ေနၾကတယ္။ ဆႏိုက္ဒါက Thallium ျဒပ္စင္ဟာ အရမ္းကို အဆိပ္အေတာက္ ျပင္းတဲ႕ အတြက္ ဒီပစၥည္းကို တပ္ဆင္ထားတဲ႕ အပူကေန လွ်ပ္စစ္ေျပာင္း ကိရိယာကို ထုတ္လုပ္မယ္ဆိုရင္ ေသခ်ာစြာထုပ္ပိုးဖို႕ လိုပါလိမ္႕မယ္။ ဒါေပမဲ႕ ဒီကိရိယာေတြဟာ ျပန္လည္ သံုးစြဲႏိုင္ပါလိမ္႕မယ္လို႕ဆိုပါတယ္။ စြမ္းရည္တူ လုပ္ေဆာင္ႏိုင္တဲ႕ အဆိပ္အေတာက္ မရွိတဲ႕ အပူကေန လွ်ပ္စစ္ ထုတ္ႏိုင္တဲ႕ တျခား စနစ္္မ်ိဳး ထပ္မံ ရွာေတြ႕ ႏုိင္ပါေသးတယ္လို႕ လည္း သူက ေျပာျပပါတယ္။

မူရင္းစာ
at

17 comments:

  1. AnonymousMay 22, 2013 at 12:40 AM

    I love your blog.. very nice colors & theme. Did
    you create this website yourself or did you

    hire someone to do it for you? Plz reply as I'm looking to construct my own blog and

    would like to know where u got this from. thank you

    my homepage :: com.ar

    ReplyDelete
  2. AnonymousMay 22, 2013 at 12:46 AM

    Hello, i read your blog from time to time and i own a similar one and i was just

    wondering if you get a lot of spam comments? If so how do you

    protect against it, any plugin or anything you can recommend?

    I get so much lately it's driving me mad so any assistance is very much appreciated.

    My homepage: www.isthewinwin.com

    ReplyDelete
  3. AnonymousMay 22, 2013 at 10:08 AM

    Hello. fantastic job. I did not imagine

    this. This is a impressive story. Thanks!

    Look at my web site :: chatalone.com

    ReplyDelete
  4. AnonymousMay 22, 2013 at 10:27 AM

    I’d should check with you here. Which isn't one

    thing I normally do! I take pleasure in studying a put up that can make individuals think. Also, thanks for

    permitting me to comment!

    Also visit my web site - HTTP://indimusic.tv/

    ReplyDelete
  5. AnonymousMay 22, 2013 at 10:31 AM

    A lot of of the

    things you state is astonishingly

    legitimate and it makes me wonder the reason why I had not

    looked at this with this light previously. This article truly did

    turn the light on for me personally as far as this topic goes.

    However there is actually just one factor I am not really too comfortable with

    and whilst I try to reconcile that with the main


    idea of your point, let me see exactly what all the

    rest of your readers have to say.Well done.

    Visit my web blog http://gonelover.com/wordpress/groups/find-the-best-properties-in-spain-with-the-credible-real-estate-companies

    ReplyDelete
  6. AnonymousMay 22, 2013 at 12:00 PM

    I think other site proprietors should take this web site as an model,
    very clean

    and magnificent user genial style and design, let alone the

    content. You are an expert in this topic!

    Feel free to visit my web site - http://www.wowfreaks.com

    ReplyDelete
  7. AnonymousMay 22, 2013 at 3:12 PM

    I’d need to test with you here. Which is not something I often do!
    I take pleasure in reading a post that can make individuals think.
    Additionally, thanks for

    allowing me to comment!

    Feel free to visit my weblog: forums.google-scraps.com

    ReplyDelete
  8. AnonymousMay 22, 2013 at 3:25 PM

    I was curious if you ever considered changing the
    layout of your

    site? Its very well written; I love what youve got to say.
    But maybe you could a little more in the way of content


    so people could connect with it better. Youve got an awful lot of text
    for only having 1 or 2 images. Maybe you could space it
    out better?

    Feel free to surf to my site: http://Mocknets.com/blog/view/32692/mccain-spain-blunder-redolent-of-schwarzenegger-spiegel-gaffe

    ReplyDelete
  9. AnonymousMay 22, 2013 at 3:29 PM

    I’m not that much of a internet reader to be honest but your
    blogs really nice, keep it up! I'll go ahead

    and bookmark your website to come back down the road. All the best

    My webpage ... gamersadda.org

    ReplyDelete
  10. AnonymousMay 22, 2013 at 10:10 PM

    Hi! I just wanted to ask if you ever have any
    trouble with hackers?

    My last blog (wordpress) was hacked and I ended up losing several weeks of hard work due

    to no backup. Do you have any methods to prevent hackers?


    my homepage http://chillzone.gruppoedilcentro.net/index.php?do=/blog/100158/shop-smart-for-tech-products

    ReplyDelete
  11. AnonymousMay 22, 2013 at 10:35 PM

    I'm usually to blogging and i really

    admire your content. The article has really peaks my interest. I am going to bookmark your site and preserve checking for brand new information.

    my website http://elevtv.ro

    ReplyDelete
  12. AnonymousMay 22, 2013 at 11:25 PM

    I carry on listening to the news broadcast

    speak about receiving free online grant applications so
    I have been looking around for

    the top site to get one. Could you tell me please, where
    could i get

    some?

    my blog :: org.uk

    ReplyDelete
  13. AnonymousMay 27, 2013 at 10:43 AM

    There are certainly a whole lot of details like that
    to take into consideration. That could

    be a nice level to carry up. I offer the ideas above as

    normal inspiration however clearly there are questions like
    the one you

    deliver up the place the most important factor

    will likely be working in trustworthy good faith. I

    don?t know if best practices have emerged round things like that, however I am positive that your job
    is clearly identified as a fair game. Each boys

    and girls really feel the affect of only a moment’s

    pleasure, for the remainder of their lives.

    my site; javea einkaufsmöglichkeiten

    ReplyDelete
  14. UnknownJune 29, 2015 at 10:59 AM

    swarovski uk
    moncler coats
    cheap nba jerseys
    nike sneakers
    larry fitzgerald jerseys,kevin kolb jerseys,patrick peterson jersey,andre ellington jersey,larry fitzgerald jersey,calais campbell jersey,deone bucannon jersey,andre ellington elite jersey,darnell dockett jersey,michael floyd jersey,sam acho jersey
    kobe 9 elite
    north face outlet store
    coach outlet store
    monster beats
    mulberry handbags
    canada goose jackets
    manchester united jersey
    golden state warriors jerseys
    mulberry outlet
    cheap oakley sunglasses
    nike sneakers
    chicago bears jerseys
    tim brown jersey,art shell jersey,kenny stabler jersey,john matuszak jersey,howie long jersey
    ugg uk
    denver broncos jerseys
    ralph lauren,ralph lauren uk,ralph lauren outlet,ralph lauren outlet online,polo ralph lauren outlet,ralph lauren polo
    lebron 12
    kobe 9
    jerome simpson jersey,marcus sherels jersey,phil loadholt jersey,tom johnson jersey
    manchester united football shirts
    vans sneakers
    gucci shoes
    russell westbrook jersey
    chicago blackhawks jersey
    mbt shoes outlet
    a chang 0629

    ReplyDelete
  15. xjd7410@gmail.comSeptember 10, 2015 at 9:23 AM

    20150910 junda
    louis vuitton
    kate spade handbags
    adidas shoes
    longchamp outlet
    louboutin pas cher
    kate spade
    soccer shoes
    adidas gazelle
    hermes birkin bag
    true religion outlet
    fitflops sale clearance
    michael kors handbag
    adidas uk
    cheap nike shoes
    adidas shoes
    basket ball shoes
    cheap snapbacks hats
    nike store
    ray ban outlet
    michael kors
    cheap true religion jeans
    burberry handbags
    new balance shoes
    hermes bags
    air max 95
    hollister clothing store
    coach outlet
    kate spade bags
    ed hardy clothing
    christian louboutin
    michael kors bag
    cheap ray ban sunglasses
    michael kors
    coach outlet
    michael kors outlet online
    cheap ray ban sunglasses
    mulberry sale
    ray ban sunglass
    air max 95
    burberry outlet

    ReplyDelete
  16. xjd7410@gmail.comAugust 25, 2016 at 10:18 AM

    20160825 junda
    christian louboutin uk
    michael kors handbags
    louis vuitton outlet
    michael kors wholesale
    air max 90
    louis vuitton handbags
    cheap uggs
    sac louis vuitton pas cher
    tory burch shoes
    lacoste pas cher
    marc jacobs sale
    ray ban sunglasses
    burberry outlet sale
    cartier uk
    mulberry bags
    ugg boots
    rolex watches
    michael kors uk outlet
    air max 90
    ralph lauren polo
    tiffany and co
    beats headphones
    hollister clothing
    fitflops sale
    swarovski jewelry
    cheap oakley sunglasses
    nike store uk
    fitflops uk
    nba jerseys
    toms outlet
    coach outlet
    versace sunglasses on sale
    cartier sunglasses
    cheap jordans
    nike free run
    nike trainers
    toms outlet
    louis vuitton pas cher
    tory burch outlet
    michael kors outlet

    ReplyDelete
  17. UnknownApril 28, 2017 at 8:52 PM

    saint laurent handbags
    ralph lauren outlet
    kobe 9 shoes
    mbt clearance
    air max 2017
    nike air max
    air max 2017
    nike cortez ultra
    coach outlet store online
    nike air max thea
    2017.4.29chenlixiang

    ReplyDelete

Your comment encouraged Mgluaye to write new posts in blog. It will be appreciated to write something about the post you have read...

Thank you

Subscribe to: Post Comments (Atom)

BAY OF HUNTERS

 

  • စကၤာပူလုပ္ငန္းအေတြ႕အႀကံဳမ်ား
    စကၤာပူ လုပ္ငန္းခြင္ေလာကကို ယခင္ကလည္း ျမန္မာေတြ ယခင္ကလည္း အေျမာက္အျမား ေရာက္ရွိလုပ္ကိုင္ခဲ႕ၾကတယ္။ ယခုလက္ရွိလည္း ျမန္မာေတြ အေျမာက္အျမားပဲ အလုပ...
  • ေလေဘးအတြက္ ကူေဖးၾကသူမ်ား
    နာဂစ္ဆိုက္ကလံုး ၀င္ေရာက္ေမႊေႏွာက္သြားၿပီးတဲ႕ ေနာက္မွာ ျမန္မာျပည္မွာ ေသဆံုးသူ ၁ သိန္းေက်ာ္ နဲ႕ အိုးမဲ႕အိမ္မဲ႕ ၁ သန္းေက်ာ္ က်န္ရစ္တာ လူတိုင္းသ...
  • 2010 July Currency Review
    For the month of July 2010, the average exchange rate between SGD and Myanmar Kyat was 724.5161 Ks/SGD ( 17.9828 up from previous month ave...