Jakobs

A definition of catalysis similar to that given above was stated first in about 1895 by Wilhelm Ostwald, whose work on catalysis was recognized with a Nobel prize. Sixty years before, Jakob Berzelius had coined the tenn... 

A. Bracher-Jakob andj. W. BAmxs.,Anim. Prod. 51, 601—611 (1990). 

Jptt Kokai Tokkyo Koho 79-16696 (1979), (to Elektiofein-mechanische Werke Jakob Pleh). 

Natural convection occurs when a solid surface is in contact with a fluid of different temperature from the surface. Density differences provide the body force required to move the flmd. Theoretical analyses of natural convection require the simultaneous solution of the coupled equations of motion and energy. Details of theoretical studies are available in several general references (Brown and Marco, Introduction to Heat Transfer, 3d ed., McGraw-HiU, New York, 1958 and Jakob, Heat Transfer, Wiley, New York, vol. 1, 1949 vol. 2, 1957) but have generally been applied successfully to the simple case of a vertical plate. Solution of the motion and energy equations gives temperature and velocity fields from which heat-transfer coefficients may be derived. The general type of equation obtained is the so-called Nusselt equation hL I L p gp At cjl... 

Heat transfer from immersed bodies is discussed in detail by Eckert and Drake, Jakob, and Knudsen and Katz (see Tutreduction General References ), where equations for local coefficients and the effects of uuheated starting length are presented. Equation (5-44) may also be expressed as... 

Fixed (or packed) bed operation occurs when the fluid velocity is low or the particle size is large so that fluidization does not occur. For such operation, Jakob (Heat Tran.sfer, vol. 2, Wiley, New York, 1957) gives... 

Theoiy permits the approximation of the maximum size of a bubble that can adhere to a submerged horizontal surface if the contact angle between bubble and sohd (angle formed by solid-hquid and liquid-gas interfaces) is known [Wark, ]. Phys. Chem.,. 37, 623 (1933) Jakob, Mech. Eng., 58, 643 (1936)]. Because the bubbles that actually rise from a surface are always considerably smaller than those so calculated and inasmuch as the contact angle is seldom known, the theoiy is not direc tly useful. 

Ganz. A. and Jakob. R.. Switching high voltage motors with SF,t self-extinguishing circuit breakers. Brown Bnveri Review, 110-714. November (1979),... 

Damkdhler, G. 1937, Einfluss von Difilision, Stromung und Warmetransport auf die Ausbeute bei chemisch-techniscen Reaktionen. Kap. II , 2. in A, Eucken und M. Jakob, editors, Der Chemie-Ingenieur. Band III. 

M. Jakob, Heat Transfer, vol. II, New York John Wiley Sons, 1957. 

In 1836 Jons Jakob Berzelius considered eight seemingly unrelated experimental results and concluded that there was a common thread among them. The commonality he defined as catalysis. In doing tliis, Berzelius proposed that a catalytic force was responsible for catalytic action. The concept of catalysis is today considered by most researchers to be due to Berzelius, probably because of the popularity of his annual Handbook of Chemistiywhere he published his definition of catalytic action. For the next one hundred years many referred to the phenomenon as contact catalysis or contact action, as proposed by Mitscherlich. 

A recent evaluation of HSCI anodes in different soil conditions has been conducted by Jakobs and Hewes . They report a consumption rate for different HSCI alloys in 3% NaCl, at a current density of 21-5 Am , of between 0-32 and 0- 87 kg A y" depending upon the alloy composition ... 

Later work by Jakobs and Hewes indicated the consumption rate in seawater to be less than 1 g A y" consumption rate of 12 to 41 g A ... 

Sweden produced a disproportionate number of outstanding chemists in the eighteenth and nineteenth centuries. Jons Jakob Berzelius (1779-1848) determined with amazing accuracy the atomic masses of virtually all the elements known in his time. In his spare time, he invented such modern laboratory tools as the beaker, the flask, the pipet, and the ringstand. 

Meyer zu Heringdorf D, Jakobs KH (2007) Lysophospholipid receptors signalling, pharmacology and regulation by lysophospholipid metabolism. Biochim Biophys Acta 1768 923-940... 

Submitted by Robert K. Muller, Renato Joos, Dorothf.e Felix Jakob Schreiber, Claude Wintner, and A. Eschenmoser1 Checked by Robert E. Ireland, J. Klecxner, and David M. Walba... 

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