Burckhardt

Variable Flow Rate Conventional variable clearance volume and valve lifting devices are impracticable at high pressures and, should it be necessary to vary the flow rate, use has to be made of variable speed electric drives or magnetic clutches. Integral steam and gas engines have been used and Burckhardt (168) developed an hydrauhc drive to provide an integrated variable capacity machine, but its efficiency is less than that of a straight mechanical drive. 

The following is a list of the known alkaloids, with their specific rotations, as recorded by Smith and Timmis, or by Stoll, Burckhardt and Hofmann. ... 

It was first prepd by Nietzki and Burckhardt (Ref 2) by the action of S0% nitric acid followed by 63% nitric acid on diquinoyltrioxime, C6H2( OX NOH)3 (Beil 7, 886), at a temp lower than room temp. By neutralizing the soln, a sparingly sol K salt was pptd, which in turn was converted by double decompn into a still less sol Ba salt. From the latter, by the action of a ealed quantity of sulfuric acid, free Tetra-nitrophenol was obtained... 

On July 5, 1982, Burckhardt Helferich died in Bonn shortly after his 95th birthday. With his death, we have lost one of the last protagonists of the classical era of carbohydrate chemistry. 

RizzoLi R, AMMANN R, BOURRIN s, CHEVALLEY T, BONJOUR j-p (2001) Proteiu intake and bone homeostasis. In Burckhardt P, Dawson-Hughes B, Heaney RP, Nutritional aspects of osteoporosis, San Diego, Academic Press, 219-35. 

Burckhardt, Titus. Alchemy science of the cosmos, science of the soul. Fons Vitae, 1967. 

Burckhardt, Titus. Alchemy science of the cosmos, science of the soul / Titus Burckhardt translated from the German by William Stoddart. Translated by William Stoddart. Longmead, Shaftesbury Element Books, 1986. 206 p. 

Burckhardt, Titus. The essential Titus Burckhardt reflections on sacred art, faiths, and civilizations edited by William Stoddart foreword by Seyyed Hossein Nasr. World Wisdom Inc, 2003. 360p. ISBN 0941532364... 

Burckhardt, Titus. Mirror of the intellect essays on traditional science and sacred art. Quinta Essentia, 1987. 

Burckhardt, Titus. Art of Islam language and meaning. London World of Islam Festival Publ Co, 1976. 204p. 

Burckhardt, Titus. Moorish culture in Spain. London Allen Unwin, 1972. 227p. 

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