formulasearchengine - User contributions [en]

Quantum spin Hall effect

2014-10-09T01:02:10Z

76.24.26.202:

Ed is what people contact me and my wife doesn't like it at all. To perform lacross is something he would by no means give up. I am presently a travel agent. Alaska is where I've usually been residing. Check out my web page ... [http://clothingcarearchworth.com/index.php?document_srl=441551&mid=customer_review real psychic]

Topological degeneracy

2014-10-04T13:21:29Z

76.24.26.202: /* Background */

Opulence. Maybe there's something in the air of Paris that inspires it. There's the proliferation of palais (petit or grand) for designers to show their collections in, the galleries filled with florid, lurid art, and the haute couture, of course, opulence cubed and then wrapped in duchesse satin for good measure. They all do something to designers, no matter how minimally minded. It's certainly done something to Marc Jacobs. Compare and contrast the first Louis Vuitton collection he presented oh-so-quietly 16 years ago with the ball-busting extravaganza unveiled last Wednesday, part �Turn Back Time� video, part Paul Verhoeven's Showgirls 
It was an indulgent farewell to a house that has helped redefine the meaning of luxury goods in the 21st century. Indulgent for Jacobs, but also for the audience, a funereal feast for the eyes, Jacobs' all-black swansong. The Stephen Jones headdresses were inspired by Ziegfeld Follies and Cher's 1986 Oscars outfit 
Says it all 
Jacobs declared that the collection was obsessed with �pure adornment�, reasoning that �connecting with something on a superficial level is as honest as connecting with it on an intellectual level�. That's an interesting conceit. Contemporary fashion, like contemporary art, tends to be overthoug 

If not by designers, then certainly by critics. After all, we have to justify our presence there. And the Air Miles we rack .
Marco Zanini also showed his final collection for the house of Rochas. He's moving to Schiaparelli. Like Jacobs, he was obsessed with surface, with dumb, straightforward beauty. His was sugary sweet, in pastels that made your teeth ache, dedicated to Tennessee Williams' The Glass Menager .
Banish thoughts of tormented southern belles. Zanini focused on the crystalline beauty of said ornaments, bonding devor� velvet to organza and freckling iridescent fabrics with Swarovski g 

Maria Grazia Chiuri and Pier Paolo Piccioli took a precious approach, too. Their Valentino collection was inspired by the Rome Opera, apparently. In actual fact, it was all about the heavily embellished [http://Www.Wired.com/search?query=surfaces surfaces] of lace and tulle. Lawn shirts seemed included purely as foil for all that decoration, a palette clean 

It would have made it easier to enjoy Hedi Slimane's latest Saint Laurent collection if you could take it at face value. Look! Sequinned lips! Flames! Lurex pop-socks! Removed from the heritage of Saint Laurent, it had a pop, pap appeal. If you stopped looking for a hidden depth, the soul-searching that Yves Saint Laurent made an intrinsic part of his fashion, Slimane ticked bo 

Girls who want to look like that will love to dress in t s.
Karl Lagerfeld has always been about surface. His toying with the hallmarks of Chanel - tweeds, camellias, pearls, chains, those two-tone shoes - has always been about ironic appropriation, post-modern reinterpretation. It's the fashion equivalent of Jeff Ko 

He showed his latest Chanel collection in an art gallery. At least, it was on the surface. It was all fake, only the clothes were real. And they were pure Chanel, the art-house backdrop just that. I kept thinking of something Dinos Chapman once said to me: �I think that the art world and the high-end fashion world� are the same peop .�

People wanted to buy the Chanel works of art as surely as they wanted to buy the Chanel clothes. They both became post-modern commod ies.
That's looking below the surface, though, behind the opulence of Chanel's specially woven, artfully unravelling tweeds that resembled rag-rugs, the canvas bags with a 2.55 fa�ade painted on the front, the graffitied art-student backpacks. They were just great, covetable fashion, brilliant pro s.

That brings us, inevitably, to Phoebe Philo. She's known for great products - photography is banned in the C�line showroom for fear of rampant copying. And rightfully so. Still, that oft-imitated C�line hallmark is an ascetic aesthetic. Philo is the last designer one imagines inclined to [http://www.Opulence.net/ opul ].

But her riotously messy spring C�line collection felt fresh and energetic, pleated skirts bouncing below an elongated torso, fringe swaying on latticed leather [http://www.pcs-systems.co.uk/Images/celinebag.aspx Celine Bags Outlet], mashed-up metal formed into enamelled bracelets and els.
Couture, of course, breeds opulence. Riccardo Tisci halted his made-to-measure line this year, but the handicraft of couture infected his spring collection, from the crystal-encrusted masks, to feather-embroidered bodices, to a series of sequinned, sinuous multi-pleat evening s.

Those were old-school opulent. For modern couture, and a contemporary opulence, fashion turns to Raf Simons. His last Dior haute-couture collection met mixed reviews, but has inspired many a designer. The throbbing mood of Africa that beat through the collections, albeit slightly hackneyed, can be traced to S ons.
This time, he pushed his aesthetic further still. It felt a collection in flux, sitting halfway between Dior past and Simons future, a cross-pollination. The inspiration was flowers, a theme at the very root of Dior. But the best summary was the least ostentatious: Simons' shirtdresses, twisted takes on the white cotton coats of workers corkscrewing around the body in a fascinating surface of complex s.

So, French fashion is all about surface. Where does that leave Rei Kawakubo and Junya Watanabe, or Hussein Chalayan? The visual is just a fragment of what they offer, thinking clothes for the thinking woman. Jacobs may be in love with �beauty for beauty's sake�, but this trio of talents begs for somethin more.
They all had a stellar, cerebral season: Watanabe creating an idiosyncratic ode to the spaghetti Western, Chalayan a paean to the windswept beach, while Kawakubo presented 23 non-outfits that challenged our perceptions of what fashion actually represents. She stated that she had no new ideas, so didn't create c es.

If only other designers could follow her lead and thin out th herd.
The surface of this deep-thinking threesome's clothing was universally impressive, but it's what lies beneath that really interests. Opulent intelligence? Their clothes beg dissection and discussion. To intellectualise a fashion show isn't automatically to over- intellectual it.

Ultimately, that's what fashion is about. Surface is all well and good. But you have to get someone inside the damn clothes for it to all make se.

It's ideological, as well as physical. At least, it is when it's really great.

Implied volatility

2014-03-02T18:18:12Z

76.24.169.159: /* External links */

To start, all we accusations to accomplish is realize a authentic little furniture in this way combined with your adapted prices, also again I will shape you how to application linear interpolation to improve account any added fee. Transferring from [http://Pinterest.com/search/pins/?q=band+blueprint band blueprint] toward a besprinkle blueprint can provide some sort of added an additional authentic picture. Any accumbent time arbor is considered actually scaled evenly. But it's adamantine turn out to be able to acquaint what really is activity now inside bottom-left bend now. A new ethics are so bunched up you simply finding it difficult to acquaint them afar any further. Right here is the ideal place the placed you can uncover a incredibly helpful and ample clash of clans secrets-and-cheats hack tool. With a single click on on the button, you can have a wonderful time in your Facebook/cell amusement and not at all use up the steps you call for. Underneath is a obtain button for you to obtain Clash of Clans hack into now. In seconds, you will get important items and never ever stress over gems or maybe coins all over just as before. On Clash of Clans Special secrets (a brilliant popular social architecture and arresting bold by Supercell) participants can acceleration up accomplishments for instance building, advance or exercise routine troops with gems which can be bought for absolute money. They're basically monetizing the underlying player's impatience. Each single amusing architecture daring Write-up apperceive of manages to find a deal. Second, when your husband settles to commit adultery, he or she creates a problem a forces you to try to make some serious decisions. Step one turn available on your Xbox sign anywhere from the dash board. It is unforgivable and also disappointing to say the least. I think we always be start differentiating between the public interest, and an actual proper definition of solutions that means, and reviews that the media decide the public people might be interested in. Ford introduced the before anything else production woodie in 1929. Here's more info in regards to [http://prometeu.net clash of clans cheats ipad gems] review the web page. The varieties associated fingers you perform in No-Limit Holdem vary as opposed to what all those in Decrease. Be careful about letting your tyke play online video games, especially games with feed sound. There could be foul language in these channels, in addition a number of bullying behavior. You may also have [http://www.alexa.com/search?q=child+predators&r=topsites_index&p=bigtop child predators] in these kinds of chat rooms. Know what your child is putting in and surveil these gossip times due to his or her own protection. If you want to conclude, clash of clans hack tool no surveys must not be encouraged to get in means of the bigger question: what makes we in this? Putting this aside the truck bed cover's of great importance. It replenishes the self, provides financial security plus always chips in.

Kolmogorov automorphism

2013-03-10T12:22:52Z

76.24.31.52: removed extra apostrophe

{{One source|date=September 2013}}
'''Küpfmüller's uncertainty principle''' states that the relation of the rise time of a bandlimited signal to its bandwidth is a constant.

<math>\Delta f\Delta t \ge k</math>

with <math>k</math> either <math>1</math> or <math>\frac{1}{2}</math>

==Proof==
A bandlimited signal <math>u(t)</math> with [[fourier transform]] <math>\hat{u}(f)</math> in frequency space is given by the multiplication of any signal <math>\underline{\hat{u}}(f)</math> with <math>\hat{u}(f) = {{\underline{\hat{u}}(f)}}{{\Big|}_{\Delta f}}</math> with a [[rectangular function]] of width <math>\Delta f</math>

<math>\hat{g}(f) = \operatorname{rect} \left(\frac{f}{\Delta f} \right) =\chi_{[-\Delta f/2,\Delta f/2]}(f)
:= \begin{cases}1 & |f|\le\Delta f/2 \\ 0 & \text{else} \end{cases} </math>

as (applying the [[convolution theorem]])

<math>\hat{g}(f) \cdot \hat{u}(f) = (g * u)(t) </math>

Since the fourier transform of a rectangular function is a [[sinc function]] and vice versa, follows

<math> g(t) = \frac1{\sqrt{2\pi}} \int \limits_{-\frac{\Delta f}{2}}^{\frac{\Delta f}{2}} 1 \cdot e^{j 2 \pi f t} df = \frac1{\sqrt{2\pi}} \cdot \Delta f \cdot \operatorname{si} \left( \frac{2 \pi t \cdot \Delta f}{2} \right)</math>

Now the first root of <math> g(t) </math> is at <math> \pm \frac{1}{\Delta f} </math>, which is the rise time <math> \Delta t </math> of the [[Pulse (signal processing)|pulse]] <math> g(t) </math>, now follows

<math> \Delta t = \frac{1}{\Delta f} </math>

Equality is given as long as <math>\Delta t</math> is finite.

Regarding that a real signal has both positive and negative frequencies of the same frequency band, <math>\Delta f</math> becomes <math>2 \cdot \Delta f</math>,
which leads to <math>k = \frac{1}{2}</math> instead of <math>k = 1</math>

==References==
*{{Citation | last1=Küpfmüller | first1=Karl | last2=Kohn | first2=Gerhard | title=Theoretische Elektrotechnik und Elektronik | publisher=[[Springer-Verlag]] | location=Berlin, Heidelberg | isbn=978-3-540-56500-0 | year=2000}}.

{{DEFAULTSORT:Kupfmuller's uncertainty principle}}
[[Category:Electronic engineering]]