Search results

From Self-sufficiency
Jump to: navigation, search
  • ...of ice, especially to the tropics. The advent of artificial refrigeration technology has since made delivery of ice obsolete. ...o be resistant to heat transfer. This mixture was thought to be completely water impenetrable. The space often had access to a Qanat, and often contained a
    3 KB (488 words) - 20:17, 5 January 2010
  • '''Soap''' is an anionic surfactant used in conjunction with water for washing and [[cleaning]], which historically comes either in solid [[mo ...irt and oils, while the ionic end dissolves in water. Therefore, it allows water to remove normally-insoluble matter by emulsification.
    20 KB (3,140 words) - 22:41, 17 June 2010
  • ...a clean burning fuel (such as natural or LP gas) the emissions are mostly water vapors with very little smoke. It is not difficult to do and, even when bur ...as opposed to buying it. My objective in this endeavor was to use existing technology to design a simple, cheap, reliable and efficient method for the small-scal
    9 KB (1,717 words) - 19:40, 2 July 2010
  • ...at the inlet of a compressor, but by absorption into an absorptive medium (water in the case of the Icy Ball). ...balls: a hot ball, which in the fully charged state contains the absorber (water) and a cold ball containing liquid ammonia. These are joined by a pipe in t
    10 KB (1,638 words) - 22:00, 19 June 2010
  • ...ivet]]ed steel plates. The Americans also became more accepting of the new technology when the process allowed them to repair their ships quickly after a German During the 1920s, major advances were made in welding technology, including the 1920 introduction of automatic welding in which electrode wi
    22 KB (3,345 words) - 12:03, 20 June 2010
  • ...]) tars and particles. The removal of tar is often accomplished by using a water [[scrubber]]. Running wood gas in an unmodified gasoline-burning internal c ...ide fuel cells], Ph.D. Thesis by Florian Nagel, Swiss Federal Institute of Technology Zurich, 2008</ref>.
    11 KB (1,707 words) - 18:26, 24 June 2010
  • ...onary motive power.In 1873, Thaddeus S. C. Lowe developed and patented the water gas process by which large amounts of hydrogen gas could be generated for r ...charcoal produces a cleaner gas without the tarry volatiles and excessive water content of wood.
    11 KB (1,818 words) - 19:04, 24 June 2010
  • |Ship propulsion=Proteus gas turbine driving water jets ...contracted by the Navy for the purpose of evaluating the latest hydrofoil technology. The second boat was the rival [[Grumman]] built [[USS Flagstaff (PGH-1)|US
    10 KB (1,456 words) - 19:35, 2 July 2010
  • ...e UK Ministry of Defence's (MoD's) Directorate Equipment Capability (Above Water Effect) - DEC(AWE) - have identified a significant capability gap in the RN ...with [[GE Fanuc Intelligent Platforms|GE FANUC]] and BAE Systems' Advanced Technology Centre,<ref name=CORDA26Jun08/> in conjunction with the DE&S Integrated Pr
    6 KB (823 words) - 22:23, 1 July 2010
  • ...rounds) with an average [[rate of fire]] of ten rounds per minute using a water cooled barrel. The AGS is to be mounted in a turret specifically designed f ...was designed around this "vertical gun", but the project ran into serious technology/cost problems and was radically scaled back to a more conventional 6.1&nbsp
    7 KB (1,033 words) - 16:45, 3 July 2010
  • ...eapon. Nonetheless, the Gatling gun represented a huge leap in [[firearm]] technology. Prior to the Gatling gun, the only rapid-fire firearms available to milita ...a fibrous matting stuffed in among the barrels which could be soaked with water to cool the barrels down. Later models eliminated the matting-filled barrel
    16 KB (2,525 words) - 20:13, 2 July 2010
  • ...oved barrel]] Due to the continuing evolution of both threats and computer technology, the Phalanx system has, like most military systems, been developed through ...ation are 440 [[volt|V]] [[alternating current|AC]] at 60 [[Hertz|Hz]] and water for electronics cooling. For full operation including some non-essential f
    26 KB (3,744 words) - 21:11, 2 July 2010
  • |wingspan= 69 cm (27-1/4 in. in the air), 66 cm (26 in. in the water) ...e tail fins, acting as aerodynamic stabilizers, which were to shed away on water entry.
    63 KB (9,925 words) - 21:39, 2 July 2010
  • ...cal power through the use of the gravitational force of falling or flowing water. It is the most widely used form of [[renewable energy]]. Once a hydroelect ...a.net/darvill/altenerg/hydro.htm Hydroelectric power - energy from falling water] Clara.net</ref>
    39 KB (5,447 words) - 23:02, 2 July 2010
  • ...ntain 15 drops/milliliter, not 20 drops/milliliter as is often assumed for water.<ref>http://wiki.answers.com/Q/20_drops_per_ml_or_15_drops_per_ml Viscous l Unlike I<sub>2</sub>, I<sub>3</sub><sup>−</sup> salts can be highly water-soluble. Through this reaction [[iodine]] is used in [[redox]] [[titration]
    23 KB (3,281 words) - 16:44, 27 September 2010
  • ...is a white to slight yellowish crystalline powder. It is very soluble in [[water]] and is [[hygroscopic]]. It is also slowly oxidized by oxygen in the air t ...] manufacturing processes, typically diluted to about 10% concentration in water. Sodium nitrite also has been used in human and veterinary medicine as a [[
    21 KB (3,046 words) - 16:45, 27 September 2010
  • ...surface area of several square metres. This image of activated charcoal in water is at a scale of 6.236 pixels/[[μm]], the entire image covers a region of ...occur. PAC is generally added directly to other process units, such as raw water intakes, rapid mix basins, clarifiers, and gravity filters.
    41 KB (5,738 words) - 16:47, 27 September 2010
  • '''Glacial acetic acid''' is a trivial name for water-free acetic acid. Similar to the [[German language|German]] name ''Eisessig
    41 KB (5,915 words) - 16:49, 27 September 2010
  • ...a dangerous compound that is widely found as a [[pollution|pollutant]] in water bodies and streams.<ref name="methylHg">{{cite book| url = http://books.goo ...ater-silver" (hydr- = water, argyros = silver) — since it is liquid like water and shiny like silver. The element was named after the Roman god [[Mercury
    69 KB (10,077 words) - 21:35, 20 September 2010
  • {{redirect|NaCl|the Google technology|Google Native Client}} ...i?ID=C7647145&Type=THZ-IR-SPEC&Index=1 National Institute of Standards and Technology: Sodium Chloride]</ref>
    19 KB (2,579 words) - 16:51, 27 September 2010
  • ...tetraacetate'''. EDTA is a [[polyamino carboxylic acid]] and a colourless, water-soluble solid. It is widely used to dissolve [[Limescale|scale]]. Its usefu ...n-coordinate complexes, or (ii) the displacement of one carboxylate arm by water. Early work on the development of EDTA was undertaken by [[Gerold Schwarze
    21 KB (2,946 words) - 15:10, 6 July 2010
  • | Technology | This is a hot rod style device on the cutting edge of 3D printing technology and like a hotrod, you'll have to oil it and do occasional maintenance.
    8 KB (1,417 words) - 22:06, 21 November 2011
  • ...because of the potential to use LDHs to remove agrochemicals from polluted water, reducing the likelihood of [[eutrophication]]. ...</sub>O) whose name is derived from its resemblance with talc and its high water content. Hydrotalcite has been studied as potential [[getter]] for iodide i
    8 KB (1,128 words) - 10:07, 20 September 2010
  • {{See|Science and technology of the Han Dynasty|List of Chinese inventions}} ...red production in [[medieval Europe]] in the 13th century, where the first water-powered [[paper mill]]s were built and mechanization of papermaking began.<
    21 KB (3,131 words) - 10:08, 20 September 2010
  • ...hesive]], after which the cured joint is machined perfectly flat. The same technology is used to create extra thick edges, which can be machined using similar to ...joined to the countertop surface with no gaps, which eliminates areas for water to collect and [[bacteria]] to grow. Integral backsplashes can also be crea
    6 KB (914 words) - 10:08, 20 September 2010
  • * A mixture of [[water]] and [[cement]] to form [[concrete]] ...[[thickening agent#weapon use|gelling agent]], and oxidizers used as an [[water gel|explosive]]
    5 KB (818 words) - 10:08, 20 September 2010
  • ...rbent material''', or '''RAM''', is a class of materials used in [[stealth technology]] to disguise a vehicle or structure from radar detection. A material's abs ...trix. The material's efficiency was partially reduced by the action of sea water.<ref>{{cite paper
    7 KB (1,065 words) - 10:08, 20 September 2010
  • ...500<ref>Serope Kalpakjian, Steven R Schmid. "Manufacturing Engineering and Technology". International edition. 4th Ed. Prentice Hall, Inc. 2001. ISBN 0-13-017440 ...rom natural raw materials and [[silica fiber]], made from sodium silicate (water glass).
    8 KB (1,192 words) - 10:08, 20 September 2010
  • ...des |url= |format= |accessdate= |edition= |series= Papermaking Science and Technology |volume= 18 |date= |year= 2000|month= |origyear= |publisher= Fapet Oy|locat | [[Water]] <br>[[absortiveness]] <br>[[Cobb]] 60 || || g/m² || 23 || 23 || TCVN 67
    2 KB (214 words) - 10:08, 20 September 2010
  • .... Flexibility of the process is enormous and essentially it is an enabling technology to marterialize many a design. Using DMD in conjunction with HDM and multi-
    3 KB (416 words) - 10:08, 20 September 2010
  • Another technology that can benefit from the unique properties of EAP actuators is optical mem ...e membrane|impermeable]] surface. This will prevent the [[evaporation]] of water contained in the EAP, and also reduce the potential loss of the positive co
    25 KB (3,633 words) - 10:09, 20 September 2010
  • ...basic solution (usually 0.26N [[tetramethylammonium hydroxide]] (TMAH) in water). ...=Robert L.|last5=Trefonas|first5=Peter|journal=Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures|volume=24|pages=316}}</ref> Ho
    16 KB (2,176 words) - 10:09, 20 September 2010
  • ...cations in the solution will impede the polymers ability to bond with the water molecule. ...er penetration in underground power or communications cable, horticultural water retention agents, control of spill and waste aqueous fluid, artificial snow
    9 KB (1,214 words) - 10:09, 20 September 2010
  • The characteristic [[anhydride]] bonds in polyanhydrides are water-labile (the polymer chain breaks apart at the anhydride bond). This result ...ature reaction of two monomers), dehydrative coupling agents (removing the water group from two carboxyl groups), and solution polymerization (reacting in a
    10 KB (1,280 words) - 10:09, 20 September 2010
  • ...above 100 °C, owing to the high Tg of PPO, so Noryl is stable in boiling water. The precise value of the transition depends on the exact composition of th ...ref>[http://www.technologyreview.com/read_article.aspx?id=16847&ch=biztech Technology Review: Hydrogen on the Cheap<!-- Bot generated title -->]</ref>
    3 KB (399 words) - 10:09, 20 September 2010
  • ...hor=Jinsong Leng, Haibao Lv, Yanju Liu and Shanyi Du. |title=Comment on “Water-driven programable polyurethane shape memory polymer: Demonstration and mec journal=Composites Science and Technology|
    21 KB (2,974 words) - 10:09, 20 September 2010
  • At 20.00 degrees Celsius the viscosity of water is 1.002 [[pascal second|mPa·s]] and its kinematic viscosity (ratio of vis The Oscillating Piston Viscometer technology has been adapted for small sample viscosity and micro-sample viscosity test
    17 KB (2,664 words) - 10:09, 20 September 2010
  • ...e [[biodegradable]]. That is, they are broken down into CO<sub>2</sub> and water by [[microorganisms]]. In addition, some of these biodegradable biopolymers ...lymers are [[biodegradable]]: they are broken down into CO<sub>2</sub> and water by [[microorganisms]]. In addition, some of these biodegradable biopolymers
    68 KB (9,959 words) - 10:10, 20 September 2010
  • ...ylic acid]]s. This causes loss of tack and makes the material soluble in [[water]]. ...(Ed), ''Synthetics, Mineral Oils, and Bio-Based Lubricants: Chemistry and Technology'', CRC Press (2005), Print ISBN: 978-1-57444-723-1, eBook ISBN: 978-1-4200-
    4 KB (554 words) - 10:10, 20 September 2010
  • ...=PA76|page=76|title=Polymer Pioneers: A Popular History of the Science and Technology of Large Molecules|author=Peter J. T. Morris|publisher=Chemical Heritage Fo ...d for use in potable plumbing, hydronic heating and cooling, and reclaimed water applications, are also manufactured using polypropylene.<ref>ASTM Standard
    25 KB (3,657 words) - 10:10, 20 September 2010
  • ...nd 10 mirrors to reflect sunlight onto the test specimens. With the latest technology for ultra-accelerated exposure testing it’s possible to simulate 63 years ...an be used with water spray to simulate a more humid climate. In addition, water containing up to 5% sodium chloride can be sprayed to create the conditions
    12 KB (1,780 words) - 10:10, 20 September 2010
  • ...rface. A solution of the pesticide and a diacid chloride are emulsified in water and an aqueous solution containing an amine and a polyfunctional [[isocyana ...de/innovationsnetzwerke/technologieplattform-mikroverkapselung/ Fraunhofer Technology Platform Microencapsulation]
    11 KB (1,664 words) - 10:10, 20 September 2010
  • ...athering: a mix of empiricism and science", ''Material Testing Product and Technology News'', 2006, 36 (76), 3-12 [http://www.atlas-mts.com]</ref>. Additional in ...for the determination of common initial properties of polymers<ref>gas and water permeability, cristallinity, density, molecular weight, melt flow index, et
    6 KB (824 words) - 10:10, 20 September 2010
  • ...tion]] reaction between [[terephthalic acid]] and [[ethylene glycol]] with water as a byproduct, or by [[transesterification]] reaction between [[ethylene g | [[Water absorption]] (ASTM)
    43 KB (6,272 words) - 10:11, 20 September 2010
  • ...ound, it remains popular for a number of other uses. In [[dentistry|dental technology]], it is still occasionally used in the production of custom impression tra ...n solvents is not very good, shellac provides an excellent barrier against water vapour penetration. Shellac based primers are an effective sealant to contr
    18 KB (2,760 words) - 10:11, 20 September 2010
  • ...ch corresponds to the combination of the two monomers with the loss of two water molecules. The distinct piece of each monomer that is incorporated into the ...ref><ref>Faudree M.C. and Fujimaki A. (2004) Basic English for Science and Technology, (3rd printing) Eihosha, Tokyo. ISBN 4-269-18019-6 C1082</ref>Polymers aff
    45 KB (6,501 words) - 10:11, 20 September 2010
  • ...nd in water sanitation to inhibit the growth of microorganisms in drinking water.<ref name="Review">{{cite journal|last=Kenaway|first=El-Refaie|coauthors=S. ...ies and the liberation of very low amounts of corrosive free chlorine into water<ref>{{cite journal|last=Liang|first=J.|coauthors=Chen, Y.|date=2006|journal
    26 KB (3,675 words) - 10:11, 20 September 2010
  • ..., 0.930–0.935 g/cm<sup>3</sup>). UHMWPE can be made through any catalyst technology, although Ziegler catalysts are most common. Because of its outstanding tou ...ch as milk jugs, detergent bottles, margarine tubs, garbage containers and water pipes. One third of all toys are manufactured from HDPE. In 2007 the global
    20 KB (2,802 words) - 10:11, 20 September 2010
  • ...RMC)] at [[Tulane University]] in [[New Orleans]], [[Louisiana]] uses this technology for its various research projects. ...would involve preliminary testing to prove the feasibility of adapting the technology to a specific product. It would also involve actual implementation on a la
    14 KB (1,877 words) - 10:12, 20 September 2010
  • ...ly known as wet scrubbers. In these systems, the scrubbing liquid (usually water) comes into contact with a gas stream containing dust particles. The greate ...vely, the sample may be washed through with a non-reacting liquid (usually water) or blown through with an air current.
    16 KB (2,356 words) - 10:12, 20 September 2010

View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500)