Search results
Results from the WOW.Com Content Network
The IEC reference tape bias definition is: Using the relevant IEC reference tape and heads according to Ref. 1.1, the bias current providing the minimum third harmonic distortion ratio for a 1 kHz signal recorded at the reference level is the reference bias setting. Type II bias ('high bias') equals around 150% of Type I bias, Type IV bias ...
Tape bias is the term for two techniques, AC bias and DC bias, that improve the fidelity of analogue tape recorders. DC bias is the addition of direct current to the audio signal that is being recorded. AC bias is the addition of an inaudible high-frequency signal (generally from 40 to 150 kHz) to the audio signal. Most contemporary tape ...
Karate uniforms are often of 10, 12, 14, or 16 ounces per yard (310, 370, 430, or 500 g/m) cotton so shrinkage can be quite severe after washing and drying. Sanforized gis are typically labelled as pre-shrunk. Fencers' protective jackets are usually made of unsanforized cotton canvas.
Bias tape or bias binding is a narrow strip of fabric, typically plain weave, cut on the bias. As the weave of fabric is at a 45-degree angle, the resulting fabric strip is stretchier than a strip cut on the grain. The strip also has a better drape, and conforms to curves better than fabric cut on the grain. [1]
Woven fabric is more elastic as well as more fluid in the bias direction, compared to the straight and cross grains. This property facilitates garments and garment details that require extra elasticity, drapability or flexibility, such as bias-cut skirts and dresses, neckties , piping trims and decorations, bound seams, etc.
Twist is needed in yarn to hold the fibres together, and is added in the spinning and plying processes. [2] The amount of twist varies depending on the fibre, thickness of yarn, preparation of fibre, manner of spinning, and the desired result. [2]
Textile fibers, threads, yarns and fabrics are measured in a multiplicity of units.. A fiber, a single filament of natural material, such as cotton, linen or wool, or artificial material such as nylon, polyester, metal or mineral fiber, or human-made cellulosic fibre like viscose, Modal, Lyocell or other rayon fiber is measured in terms of linear mass density, the weight of a given length of ...
The bias is a trivial calculation, but the variance of ¯ is more involved since the jackknife replicates are not independent. For the special case of the mean, one can show explicitly that the jackknife estimate equals the usual estimate: