Polyurethane (266 Ergebnisse)

Zustand: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. Book contains pen & pencil markings. In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,650grams, ISBN:0853347565.…

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: Good. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Zustand: Brand New. 178 pages. 8.86x6.02x0.43 inches. In Stock.

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Clean from markings. In poor condition, suitable as a reading copy. Library sticker on front cover. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,300grams, ISBN.…

PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,450grams, ISBN.

Zustand: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,600grams, ISBN.

Hardcover. Zustand: Fair. Unbekannte Unterschrift / Widmung; Anmerkungen / beschriftet / Stempel; Leichte Kratzer / Abnutzungen / Druckstellen; Leichte Gebrauchsspuren; Leichte Verschmutzung / Farbtonveränderung.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

Zustand: New. pp. [x] + 534 Figures.

HRD. Zustand: New. New Book. Shipped from UK. Established seller since 2000.

1st ed. 2019. VIII, 289 p. Hardcover. Versand aus Deutschland / We dispatch from Germany via Air Mail. Einband bestoßen, daher Mängelexemplar gestempelt, sonst sehr guter Zustand. Imperfect copy due to slightly bumped cover, apart from this in very good condition. Stamped. Advanced Structured Materials, 111. Sprache: Englisch.…

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Plunging down a 300-foot vertical drop at ninety miles per hour generates forces that would instantly obliterate conventional tires. The ability to safely secure a multi-ton rollercoaster train to a twisting steel track relies entirely on one of the most punishing applications of modern material science: the polyurethane road wheel.These specialized wheels are subjected to relentless kinetic torture. As the train navigates intense inversions and extreme G-forces, the friction generates blistering internal temperatures. If the polyurethane compound is too soft, the wheel will literally melt and peel apart mid-ride. If the compound is too hard, the ride becomes violently rough, shattering the ceramic bearings housed within the wheel's core.To prevent catastrophic failure, engineers utilize a sophisticated triple-wheel assembly-the road wheel, the guide wheel, and the up-stop wheel-ensuring the chassis remains locked to the tubular steel regardless of orientation. Daily inspections involve laser thermography to detect microscopic blistering before the polyurethane delaminates.This analysis dissects the physics of manufactured thrills. It reveals the uncompromising thermodynamic tolerances and synthetic chemistry required to weaponize gravity for global entertainment.…

Zustand: New. In English.

Zustand: New. In English.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Moving perishable cargo across the equator without catastrophic spoilage is a triumph of applied thermodynamics. The modern global food web depends entirely on the 'Cold Chain,' an intermodal network of refrigerated trucks, ships, and warehouses. The unsung hero of this system is rigid polyurethane foam, a synthetic material that acts as an impenetrable shield against ambient heat.The true profitability in this sector lies in the microscopic engineering of the foam cells. Manufacturers mix toxic isocyanates with polyols to trigger a rapid expansion, trapping billions of tiny gas bubbles that completely block thermal transfer. Perfecting this chemical lattice requires precise atmospheric controls during the 'foaming-in-place' process. As environmental regulations phase out ozone-depleting blowing agents, the industry faces an ongoing crisis to reformulate their insulation without losing thermal efficiency.Step inside the refrigerated arteries of global trade. Deconstruct the reactive chemistry and complex supply chains that successfully freeze time and prevent the world's food supply from rotting in transit.…

Hardcover. Volume 1. 280 p. Good condition. Reading pages are clean and without marks. Retired library exemplar, with the usual marking. Book shows slight signs of storage and usage. Still good copy. 9780853347569 Altersfreigabe FSK ab 0 Jahre Sprache: Englisch Gewicht in Gramm: 567.

Zustand: New. In English.

Zustand: New. In English.

Taschenbuch. Zustand: Neu. Neuware - This book aims to evaluate the process of immobilising Candida antarctica B (CAL B) lipase in flexible polyurethane. The enzyme polymerisation process was carried out by mixing monomers, surfactants, chain extenders and water. The immobilisation technique, as well as the stability of the immobilised enzyme at different temperatures and the capacity for reaction cycles, were evaluated by the synthesis activity of oleic acid and ethanol. In order to optimise the process of measuring the esterification activity of immobilised D30 and D18, a central composite rotational design (CCRD) was performed using enzyme concentration and reaction temperature as variables. The results of continuous recycling demonstrated the possibility of reusing immobilised D30 and D18 up to 5 times, considering 50% residual activity. The results of the recycling carried out every 24 hours and with washing in organic solvents showed reuse up to 15 times for both immobilised enzymes (D30 and D18). Regarding the thermal stability of the immobilised enzymes, the results were superior to those presented by free Candida antactica B lipase.…

Zustand: New. pp. 200.

Kartoniert / Broschiert. Zustand: New.

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Zustand: New. In English.

Paperback. Zustand: Brand New. 68 pages. 8.66x5.91x0.16 inches. In Stock.