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A much simpler interpolation scheme for approximating the electronic band structure, especially for the d-bands of transition metals, is the parameterized tight-binding method conceived in 1954 by John Clarke Slater and George Fred Koster, [1] sometimes referred to as the SK tight-binding method. With the SK tight-binding method, electronic ...
A third method, called combination knitting, goes through the front of a purl stitch and the back of a knit stitch. [24] Once the hand knitted piece is finished, the remaining live stitches are "cast off". Casting (or "binding") off loops the stitches across each other so they can be removed from the needle without unravelling the item.
Tunisian crochet or Afghan crochet is a type of crochet that uses an elongated hook, often with a stopper on the handle end, called an Afghan hook. It is sometimes considered to be a mixture of crocheting and knitting. [1] As such, some techniques used in knitting are also applicable in Tunisian crochet. One example is the intarsia method.
The Density Functional Based Tight Binding method is an approximation to density functional theory, which reduces the Kohn-Sham equations to a form of tight binding related to the Harris functional. The original [ 1 ] approximation limits interactions to a non-self-consistent two center hamiltonian between confined atomic states.
An afghan is a blanket or shawl, usually knitted or crocheted. [1] It is sometimes also called a "throw" of indeterminate size. Afghans are often used as bedspreads, or as a decoration on the back of couches or chairs.
The constrictor knot is appropriate for situations where secure temporary or semi-permanent binding is needed. Made with small-stuff it is especially effective, as the binding force is concentrated over a smaller area. When tying over soft material such as the neck of a bag, take care to keep the wraps of the knot together.
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The method creates an elastic fabric using short lengths of yarn and a single-eyed needle that is often broad and flat. The stitches are commonly, but not invariably, gauged by wrapping them around the thumb. In its simplest form, the needle is passed through a seed loop to form a new loop, taking care to avoid tightening either into a firm knot.