ہفتہ، 16 مئی، 2015

Ujle Baadal Pe Ishare Se' Aleena' Likkha

اجلے بادل پہ اشارے سے علینا لکّھا 
میرے محسن نے مری یوں بھی پذیرائی کی 
علینا 
Ujle Baadal Pe Ishare Se' Aleena' Likkha
Mere Mohsin Ne Meri Yu'n Bhi Pazeerai Ki
(Aleena)
[Mohsin-dost, pazerai-hausla afzai ,protsahan]

ہفتہ، 11 اپریل، 2015

Windows into Power: Transparent Solar Cells Turn Your Home into a Power

A fully transparent solar cell that could make every window and screen a power source.

Researchers at Michigan State University have created a fully transparent solar concentrator, which could turn any window or sheet of glass (like your smartphone’s screen) into a photovoltaic solar cell. Unlike other “transparent” solar cells that we’ve reported on in the past, this one really is transparent, as you can see in the photos throughout this story. According to Richard Lunt, who led the research, the team are confident that the transparent solar panels can be efficiently deployed in a wide range of settings, from “tall buildings with lots of windows or any kind of mobile device that demands high aesthetic quality like a phone or e-reader.”


Scientifically, a transparent solar panel is something of an oxymoron. Solar cells, specifically the photovoltaic kind, make energy by absorbing photons (sunlight) and converting them into electrons (electricity). If a material is transparent, however, by definition it means that all of the light passes through the medium to strike the back of your eye. This is why previous transparent solar cells have actually only been partially transparent — and, to add insult to injury, they usually they cast a colorful shadow too.

{The organic salts absorb UV and infrared, and emit infrared — processes that occur outside of the visible spectrum, so that it appears transparent}

To get around this limitation, the Michigan State researchers use a slightly different technique for gathering sunlight. Instead of trying to create a transparent photovoltaic cell (which is nigh impossible), they use a transparent luminescent solar concentrator (TLSC). The TLSC consists of organic salts that absorb specific non-visible wavelengths of ultraviolet and infrared light, which they then luminesce (glow) as another wavelength of infrared light (also non-visible). This emitted infrared light is guided to the edge of plastic, where thin strips of conventional photovoltaic solar cell convert it into electricity. [Research paper: DOI: 10.1002/adom.201400103- "Near-Infrared Harvesting Transparent Luminescent Solar Concentrators"]
If you look closely, you can see a couple of black strips along the edges of plastic block. Otherwise, though, the active organic material — and thus the bulk of the solar panel — is highly transparent. (Read: Solar singlet fission bends the laws of physics to boost solar power efficiency by 30%.)
Michigan’s TLSC currently has an efficiency of around 1%, but they think 5% should be possible. Non-transparent luminescent concentrators (which bathe the room in colorful light) max out at around 7%. On their own these aren’t huge figures, but on a larger scale — every window in a house or office block — the numbers quickly add up. Likewise, while we’re probably not talking about a technology that can keep your smartphone or tablet running indefinitely, replacing your device’s display with a TLSC could net you a few more minutes or hours of usage on a single battery charge.
The researchers are confident that the technology can be scaled all the way from large industrial and commercial applications, down to consumer devices, while remaining “affordable.” So far, one of the larger barriers to large-scale adoption of solar power is the intrusive and ugly nature of solar panels — obviously, if we can produce large amounts of solar power from sheets of glass and plastic that look like normal sheets of glass and plastic, then that would be big.


پیر، 2 مارچ، 2015

Ashiq Ka Janaza Hai..Beyan_Peer Naseer Shah

Peer Naseer-u-Deen Naseer

Aashiq ka Janaza Hai Sara Dhoom Se Niklay Janaza Peer Naseer Ud Din Naseer R.A





Naseer-uddin-Naseer

Peer Syed Ghulam Naseer-uddin Naseer Gilani was a Pakistani poet, renowned Islamic scholar and Sufi Muslim of the Chishti Sufi order. He was the custodian of Shrine Golra Sharif, in the Islamabad Capital Territory of Pakistan. 




اتوار، 11 جنوری، 2015

IYYAKA NAABUDU WA IYYAKA NASTAEEN

اچھا انتظار کرو اُس دن کا جب آسمان صریح دھواں لیے ہوئے آئے گااور وہ لوگوں پر چھا جائے گا، یہ ہے درد ناک سزا ، کہیں گے کہ اے ہمارے رب! یہ آفت ہم سے دور کر ہم ایمان قبول کرتے ہیں ، ان کے لیے نصیحت کہاں ہے؟ کھول کھول کر بیان کرنے والے پیغمبران کے پاس آچکے پھر بھی انہوں نے ان سے منھ پھیرا اور کہہ دیا کہ سکھایا پڑھایا ہوا دیوانہ ہے ، ہم عذاب کو تھوڑا دور کردیں گے تو تم پھر اپنی اسی حالت پر آجاؤ گے ، جس دن ہم بڑی سخت پکڑ پکڑیں گے، بالیقین ہم بدلہ لینے والے ہیں
سورة الدخان : 10 تا 16
 —

YEh JO ISHQ HAY

YE JO ISHQ HAY-یہ جو عشق ہے

ye jo ishq hay
janay kia hay ye
kuch khbar nhi
ye kisi nay bhi kia nhi
ye hoa hay khud
hay juno ya khird
kuch pata nhi
ye wo marz hay
kay dwa nhi

=Rubina Nazlee