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Interlaced design

Keywords Catenanes Copper complexes Interlaced design Knots Kuratowski s graphs Mobius strip Topological chirality Topology... [Pg.108]

ABSTRACT. Knots and interlaced designs have been part of human artistry and culture since the earliest times. In chemistry, knots have been the focus of theoretical investigations for several decades. In pandlel, a few experimental approaches have been attempted by synthetic chemists. Until recent years, the only preparative routes pursued used the tools of classical organic chemistry. Despite their intellectual elegance, they have not succeeded. By taking advantage of the three-dimensional template effect of a transition metal (copper I), it has recently been possible to interlace two molecular threads prior to cyclisation and formation of a dimetallic trefoil knot. The demetallated knotted molecule and its di-copper(I) precursor have been fully characterized and studied. The X-ray structure of the dimetallic trefoil knot has been solved. It confirms the topology of the system. [Pg.259]

Kagawa, Y. (1998). Two approaches for interlace design of continuous fiber ceramic matrix composites. Ceramic Transactions, 99,179-185. [Pg.545]

DSSCs are photoelectrochemical solar devices, currently subject of intense research in the framework of renewable energies as a low-cost photovoltaic device. Their functioning is based on the interlacing of subsystems working in tandem the photoanode on which the dye sensitizer is adsorbed, the electron mediator, and the counter electrode. In this chapter, we have tried to give an overview on the recent advances in the design of these solar cell components. [Pg.574]

Fig. 3—Bucket and weir configuration for three-phase horizontal separator eliminates interface controller and uses conventional displacement fioal lo operate oil and water dump valves This design is useful if paraffin or large volumes o emulsions that would loul interlace controllers are expected. Fig. 3—Bucket and weir configuration for three-phase horizontal separator eliminates interface controller and uses conventional displacement fioal lo operate oil and water dump valves This design is useful if paraffin or large volumes o emulsions that would loul interlace controllers are expected.
XGA Acronym for Extended Graphics Array. XGA is only available as a micro channel architecture expansion board it is not available in ISA or EISA form. XGA supports resolution of 1024 horizontal pixels by 768 vertical pixels with 256 colors, as well as a VGA mode of 640 pixels by 480 pixels with 65,536 colors, and like the 8514/A, XGA is interlaced. XGA is optimized for use with graphical user interfaces, and instead of being very good at drawing lines, it is a bit-block transfer device designed to move blocks of bits Hke windows or dialog boxes. [Pg.871]

The design of a commingling jet affects the appearance of an entangled yarn. Some commingling jets produce the node and antinode feature, while some produce a continuous interlaced cohesive yarn bundle without the distinct nodes. In addition, by controlling the feed speed and take-up speed (called overfeed) with a specially designed jet, one can obtain a bulky, air-textured yarn for end uses like luggage fabric, backpack, etc. [Pg.87]

Woven geotextiles. A woven fabric consists of two sets of orthogonally interlaced filaments or staple-fibre yams. The weave design or pattern is determined by the manner in which yams or filaments are interlaced. Filaments or yams placed in the longitudinal and transverse directions are known as warp and weft, respectively. Monofilament and slit woven geotextiles are anticipated to be thinner in comparison to multifilament, spun, and fibrillated woven geotextiles. [Pg.119]

Inplane interlacers always remaining in their layer of origin and following a designated interlacing weave pattern. [Pg.889]

Mock leno n. A combination of weaves having interlacings that tend to form the warp ends into groups (with empty spaces intervening) in the cloth, thereby giving an imitation of the open structure that is characteristic of leno fabrics. Mock leno fabrics are used for summer shirts, dresses, and other apparel, and as a shading medium in Jacquard designs. [Pg.626]

Shish-Kebab structure shish-k3- bab n. A term borrowed from the broiling kitchen to designate a polymeric microstructure in which the random-coil chain of an amorphous polymer (shish) has been interlaced with crystalline cross-segments (kebab) produced by shearing the polymer in the molten condition or in solution. The string-of-lumps microstructure so resembles the edible dehcacy that its borrowed name seems quite apt. Ehas HG (1977) Macromolecules, vols 1—2. Plenum Press, New York. [Pg.878]

Four-harness satin refers to a fabric weave also named crowfoot satin because the weaving pattern when laid out on cloth design paper resembles the imprint of a crow s foot. In this type of weave there is a three by one interlacing, that is, a filing thread floats over the three warp threads and then under one. This type of fabric looks different on one side than on the other. Fabrics with this weave are more pliable than either the plain or basket weave and, consequently, are easier to form around curves. [Pg.598]

The leno weave is a locking-type weave in which two or more warp threads cross over each other and interlace with one or more filling threads. It is used primarily to prevent the shifting of fibers in open-weave fabric designs. It is especially useful when the fabric will be exposed to the pressures of a flowing resin during the reinforced plastic molding operation. [Pg.598]


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See also in sourсe #XX -- [ Pg.107 ]




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