Search results
From Self-sufficiency
- ...orating filler material. The process of arc welding is widely used because of its low capital and running costs. ...table arc. In 1905 Russian scientist Vladimir Mitkevich proposed the usage of three-phase electric arc for welding. In 1919, [[alternating current]] weld22 KB (3,345 words) - 11:03, 20 June 2010
- ...tly and accurately measure target aircraft speed and direction.<ref>Weapon Control in the Royal Navy 1935-45, Pout </ref> ...vement across the line of sight. This force was measured by the deflection of a spring loaded device and the deflection measurement was combined with ran5 KB (749 words) - 19:16, 2 July 2010
- ...director crew would aim at the target aircraft and, in the early versions of the director, cause Layer ( Altitude ) and Trainer ( Azimuth ) Pointers to ...e on these ships to site a Pom-Pom Director.<ref>Campbell, ''Naval Weapons of WW2''</ref>4 KB (634 words) - 20:12, 2 July 2010
- ...l 2006.jpg|thumb|right|280px|The [[Three Gorges Dam]] in China, the [[List of the largest hydroelectric power stations|largest hydro-electric power stati ...approximately 20% of the world's electricity, and accounted for about 88% of electricity from renewable sources.<ref name="REN21-2006">[http://www.ren2139 KB (5,447 words) - 22:02, 2 July 2010
- ...ocket]]ry and in [[Auto racing|motor racing]] to increase the power output of [[Piston engine|engines]]. At elevated temperatures, nitrous oxide is a pow ...Forcing"] which contains information on [[global warming potential]] (GWP) of greenhouse gases.</ref>61 KB (8,728 words) - 15:50, 27 September 2010
- ...es listing the staff members, advisors and contributors to all three parts of the ''Britannica''. ==The Outline of Knowledge==41 KB (5,585 words) - 12:32, 19 September 2010
- ...action=list&grp=C Ceramic Tile and Stone Standards]</ref> [[Clay]] was one of the earliest materials used to produce [[ceramic]]s, but many different cer ==Types of ceramic materials==28 KB (3,876 words) - 09:08, 20 September 2010
- ...tions, EAPs are often referred to as artificial muscles. A cartoon drawing of a gripping device using EAPs as "fingers" to grip a ball is depicted in Fig ==History of EAPs==25 KB (3,633 words) - 09:09, 20 September 2010
- ...er''') are [[polymer]]s that can absorb and retain extremely large amounts of a liquid relative to their own mass.<ref>Horie, K, ''et. al'', 890.</ref> ...solution, the absorbency drops to maybe 50 times its weight. The presence of valent cations in the solution will impede the polymers ability to bond wit9 KB (1,214 words) - 09:09, 20 September 2010
- ...nipulate matter on the nanometer level is making possible a new generation of materials with enhanced mechanical, optical, transport and magnetic propert ...mixing/compounding, stabilization of the achieved dispersion, orientation of the [[dispersed phase]], and the compounding strategies for all MPS, includ15 KB (2,273 words) - 09:09, 20 September 2010
- ==Properties of shape memory polymers== ...s.0600079103 |title=Initiation of shape-memory effect by inductive heating of magnetic nanoparticles in thermoplastic polymers|format=free-download|journ21 KB (2,974 words) - 09:09, 20 September 2010
- [[File:ADN animation.gif|thumb|right|220px|Microstructure of part of a [[DNA]] [[double helix]] '''biopolymer''']] ...hitin]], [[protein]]s, [[peptide]]s, [[DNA]] and [[RNA]] are all examples of biopolymers, in which the [[monomer]]ic units, respectively, are [[sugar]]s68 KB (9,959 words) - 09:10, 20 September 2010
- ...erwear and carpets), [[stationery]], plastic parts and reusable containers of various types, laboratory equipment, [[loudspeakers]], automotive component ...r polypropylene had a volume of 45.1 million tons, which led to a turnover of about 65 billion US-dollars (47.4 billion Euro).<ref>{{cite web|title = Mar25 KB (3,657 words) - 09:10, 20 September 2010
- ...s canvas tenting.<ref name=hindersinn>Hindersinn, R. R. Historical Aspects of Polymer Fire Retardance. In ''Fire and Polymers – Hazards Identification ...from both academia and industry for the purpose of [[polymer]] science and engineering research.<ref name="zhang" />17 KB (2,260 words) - 09:10, 20 September 2010
- ...sup>−1</sup>,<ref name="Lange_16ed">{{cite book|title = Lange's handbook of chemistry|edition = 16|editor = McGraw-Hill|year = 2005|isbn = 0071432205|p ...and other liquid [[Packaging|containers]]; thermoforming applications; and engineering resins often in combination with glass fiber.43 KB (6,272 words) - 09:11, 20 September 2010
- [[Image:Single Polymer Chains AFM.jpg|right|thumb|175px|Appearance of real linear polymer chains as ...u Conformation of Adsorbed Flexible Polyelectrolyte Chains|journal=Journal of the American Chemical Society|volume=127|issue=45|pages=15688–15689|year=45 KB (6,501 words) - 09:11, 20 September 2010
- ...dable polymers were used in the times of the Romans. One desired property of a suture is that it slowly degrades as the wound heals. The Romans used ca ==Applications==3 KB (420 words) - 09:12, 20 September 2010
- ...A. Paril; A. M. Alb; W. F. Reed | title=Online Monitoring of the Evolution of Polyelectrolyte Characteristics during Postpolymerization Modification Proc ...maximizing the efficiency of the reaction and reducing the common problem of inconsistent product quality and wasted batches. The non-profit [http://tul14 KB (1,877 words) - 09:12, 20 September 2010
- ...on.cws_home/405934/description#description | title = International Journal of Refractory Metals and Hard Materials | publisher = Elsevier| accessdate = 2 ...rication (metal)|fabricating]] components from these metals. Some of their applications include tools to work metals at high temperatures, wire filaments, casting25 KB (3,519 words) - 09:13, 20 September 2010
- ...l contacts and the production of thick-film resistors. A minor application of ruthenium is its use in some platinum [[alloy]]s. ...ugh broken, while the other, cigar-shaped end is relatively smooth.|A half of a pure, [[Electron beam melting|electron-beam remelted]] ruthenium bar]]39 KB (5,430 words) - 09:13, 20 September 2010
