◆ SpookStack

“Nucet.” iM actors to provide heat for desalination of sea water and generation of electric power. “Nu-Pon.”"“* Trademark for epoxy resin primers and P' enamels for household appliances, metal products, oleoresinous varnishes; solder flux; spirit varnishes, waxed paper and hot melt compounds; synthetic res- ins. Trademark aPSCCinein nickel-plating additive. satin finish oe TOF wet PSTeee “Nuso.”*' Trademark for highly aromatic oils used as resin plasticizers. Nusselt number. A value used in heat transfer studies and calculations to compare heat josses by conduc- tion from various shaped objects under various condi- tions. It combined into a single number the actual heat loss (Q), the temperature difference (AT) be- tween the body and its surroundings, the size (d) and shape of the body and the thermal conductivity (k) of the fluid surrounding the object, in the equation Nu = Qd/ATk. it. ae AR, pe pe Yet a a oa ce re + fee Boule ick harpist bas Recs phe Opa ae meals LES ed “NU-PON” 628 with the aid of nitrogen-fixing bacteria; as well as phosphorus, calcium, potassium and a number of trace elements (micronutrients). Besides protcins and carbohydrates, plants also synthesize vitamins and various fats and oils. Thus they provide a basis for and corrosion-resistant applications. human nutrition, both directly (grain and other vege- “Nuroz.””” Trademark for a polymerized wood rosin. tables} and indirectly (meats and dairy products), Uses: Adhesives; gloss oils; paper Jabel coatings, though the conversion to protein values for human nutnition is only about 10% for meats. Human diet requires proteins (milk, eggs, fish and some vegetables); carbohydrates (plants), fats (oils) from both plants and animals; minerals from milk and meats; salt (chioride): vitamins from green vege- tables and citrus fruits; and water. Micronutrients are furnished by sea food, cereals, vegetables, and ruit, Human digestive processes involve primarily the hydrolysis of compiex carbohydrates to simple sugars, of proteins to a mixture of amino acids, and of fats to glycerol and higher fatty acids. Hydrolysis is cat- lyzed by various enzymes (q.v.) in the saliva and igestive tract. The end products of digestion are absorbed across a semipermeable membrane in the intestine and thus enter the blood stream, unusable products being eliminated. The efficiency of diges- tion plus absorption is about 92% for protein, 959% for fat and 98% for carbohydrates. See also metabo- lism; digestion (1); plant (1); nutrient, RDA. nut shells. In a fine-ground state the shells of coce- nuts and ether nuts are a source of decolorizing car- bon; the pits of peaches and similar fruits have been used for gas-adsorbent carbon. nux vomica. See strychnine. “Nu-Z."" Trademark for a fine cream-white powder assaying 52% zinc. Used as 2 foliar application to “Nuto.”"' Trademark for fubricating oils of good color and high resistance to oxidation; recommended for circulating and hydraulic systems. “Nutralac.”"" Trademark for 2 hydrated compound consisting of sodium carbonate and sodium bicar- bonate. Uses: Dairy and food industry for neutralizing acidity in cream and related foods; di.iwashing prepara- tions; leather tanning, and textile processing. nutrient. Any element or compound that is essential : : : correct zinc deficiencies in plants, and in animal to the life and growth of plants or animals, either as nutrition. F such or as transformed by chemical or enzymatic reactions. In plants, nutrients include numerous min- NW scid. Abbreviation for Neville and Winther’s acid. See I-naphthol-4-sulfonic acid. “Nydrazid.”*"? Trademark for isoniazid (g.¥.). “NyeBar."“ Trademark for a liquid applied around oiled areas to retard oj] spreading. A solvent evapo- rates Jeaving a polymer film across which lubricants do not spread or creep. “NyeFret." Trademark for a dolphin oil lubricant which reduces fretting corrosion for smali springs and other instrument components. Viscosity 6 centi- stokes at 100°F. “NyeSolve.""" Trademark for a nonflammable, low- toxicity solvent for cleaning oils and oil-held soils from fine instruments. “Nylafil.”** Trademark for glass fiber-reinforced nylon. - aylidrin hydrochloride HOC,H.CH(OH)CH(CH))- NHCH(CH;)(CH:)>GH;HC!. para-Hydroxy-alpha- [1-{1-tnethy}-3-pheny-propylamino}ethy!] benzyl al- coho) hydrochloride. Properties: White, odortess, tasteless, crystals of powder; slightly soluble inwater, alcohol, very slightly soluble in chloroform, ether; pH of 1% sotution is between 4.5 and 6.5. Grade. N.F. Use: Medicine (treatment of heart disease). [ son Genene name for a family of polyamide poly- mets characterized by the presence of the amide era] eler-=nts as well as nitrogen, carbon dioxide and water. 1., animals and man the primary nutrients are the proteins, carbohydrates and fats obtained from plants, either directly or indirectly, supplemented by vitamins and minerals. Water and oxygen are in- cluded in this definition. All told, there are 43 basic nutrients. See also food. nutrient solution. A water solution of minerals and their salts necessary for plant growth which is used instead of soil, the plants being supported by me- chanical means. Such solutions contain combined nitrogen, potassium, phosphorus, calcium, sulfur, magnesium, together with traces of iron, boron, zinc, and copper. q are extensively used for com- mercial growing of flowers and vegetables particu- larly on islands, and also to some extent for house plants. . nutrifieation. Addition of nutrients ta a food either to replace those lost in processing (restoration), to pro- vide nutrients that are not no ly present in the food (fortification), or to bring the food into con- formity with a specific standard for that food. outrition. The effects of nutrients on living organisms and the biochemical mechanisms involved in bringing them about; alsa, that subdivision of biochemistry which deais specificaily with these effects. In plant Nutrition the essential requirements are carbon iox- ide and water, from which the plant forms carbo- hydrates by photosynthesis (q.v.); nitrogen, which is an anu essential for the synthesis of proteins by the plant, group —-CONH. 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