Silver thread

Gold and silver thread and zari (textile) work... 

Recent references to textiles that have gold and silver threads include the detailed volume on Persian textiles by Reath and Sachs (3) and work by France-Lanord (9), Werner and Summers (10), and Stouring-Neilsen (II). Except for Reath and Sachs (3), the articles deal... 

Very white silver, like a ball of minute silver threads twisted silver. 

Eor studies in aqueous solutions, the external reference electrode (ERE) is often an Ag/AgCl/KCl electrode, made of a silver thread covered with silver chloride bathed in a solution of potassium chloride. Electrical contact with the solution under study is achieved through a finely porous fritted glass. Since the ions have a tendency to migrate across the membrane, there is a resulting low potential junction Aj that can be minimized by a salt bridge, usually a saturated solution of potassium chloride. 

Purl p9r(-3)l [ME] (1526) n. (1) A knitting stitch that results in horizontal ridges across the fabric. It is made by drawing alternate courses through each side of the fabric. (2) A picot or small loop that edges needlework, lace, or ribbon. Sometimes spelled pearl also see picot). (3) Coiled gold or silver thread used for embroidery. Vincenti R (ed) (1994) Elsevier s textile dictionary. Elsevier Science and Technology Books, New York. 

Eztronics. Conductive silver thread 117/17 2-ply, http //www.eztronics.nl/webshop2/ catalog/index.php route=product/product product id=265 [accessed 15.08.13]. 

Details of gold and silver threads in Renaissance tapestries are reported by Hacke et al. (2003). Various metallized threads from the seventeenth and nineteenth centuries in South America are described by Muros et al. (2007). Figure 1.1 shows a seventeenth century silver-wrapped silk thread found in Dorchester in the United Kingdom. 

Coiled gold or silver thread used for embroidery. (Elsevier s textile dictionary. Vincenti R (ed). Elsevier Science and Technology Books, New York, 1994)... 

BS 2816 Electroplated Coatings of Silver for Engineering Purposes BS 3382 Electroplated Coatings on Threaded Components ... 

Metal Threads. Metal threads, not really metal fibers but metal filaments, are human-made. In antiquity, metal threads were made for ornamental or decorative purposes from precious, ductile metals or alloys, particularly silver and gold and their alloys. Such threads were either applied with adhesives to finished fabrics or wound around ordinary textile yam cores the metal-covered yarn was then either woven into textile fabrics or embroidered on the textile fabric (Jaro and Toth 1991 Lee-Whitmann and Skelton 1984). 

The process of infection of lupine nodule cells by Rhizobia was examined by the thin-section electron microscopic technique, as well as the freeze-fracture technique. Different membranes such as infection thread membranes, peribacterioid membranes, plasma membranes, membranes of cytoplasmic vesicles, and membranes of the Golgi bodies and ER were stained with uranium-lead, silver, phosphotungstic acid, and ZIO (31). ZIO stained the membranes of the proximal face of the Golgi bodies and endoplasmic reticulum. ZIO staining has given good contrast in thick sections such as a cotyledon cell, a root cell, and an aleurone layer for ER, dictyosomes cisternae, mitochondria, and nuclear envelopes (17,32-37). 

Of course, it is quite possible to further extend these assembly processes to give doublehelical complexes with even more bond crossings. For example, a double-helical complex with three bond-crossings should result from the reaction of a molecular thread containing three metal-binding domains with three tetrahedral metal ions (Fig. 7-32). An example of the assembly of such a trinuclear double-helical complex is seen in the formation of 7.52 from the reaction of 7.51 with silver(i) salts (Fig. 7-33). 

Because elaborate equipment is required to test metal ductility, we tested the ductility of the copper, silver, and iron wires in Activity 6.1 indirectly. Ductility is a physical property of metals that allows them to be drawn or stretched into thin threads without the metal breaking. Two of the most ductile metals are gold and silver. One gram of gold can be drawn into a thread two miles long 3 Threads can be used as lines in art. We know that lines in art are used to communicate what we see and feel. A thread, used as a line, can enhance a sculpture or even serve as the sole material for the sculpture. Because many pieces of jewelry are sculptures in miniature, threads of gold and silver are excellent materials for creating attractive pieces of jewelry. 

Both gold and silver can be made into threads, which can be used as electrical conductors or in production of decorative fabrics. Many valuable examples of gold tapestries, carpets, or canopies for thrones exist. The durability and luster of gold undoubtedly contribute to its value. 

Thermocouples often come with pipe threads for attaching onto vacuum systems. Avoid using these pipe joints entirely by attaching a thermocouple to a glass system by silver soldering the thermocouple to a premanufactured glass-to-metal seal. 

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