Fischer Technics

E. O. FISCHER Technical University, Munich JACK LEWIS Cambridge University LAMBERTO MALATESTA University of Milan RENE POILBLANC University of Toulouse HERBERT W. ROESKY University of Gottingen... 

Keywords AI, algebraic manipulations, expert system, Fischer technics, intelligent tutoring systems, ITS, LOGO, meta-knowledge, micro-robots, micro-worlds, microworld, motivation, student model, turtle, tutorial strategies... 

Parallel Centronics interface was a communication interface used mainly with printers and the standard for computers, even though it has been replaced by the USB interface. In some exceptional cases, it is used to communicate with and/or control other devices, e.g. EMCO lathes, Fischer Technic... 

Principal impurities are butynediol (specified as 2.0% maximum, typically less than 1%), butanediol, and the 4-hydroxybutyraldehyde acetal of butenediol. Moisture is specified at 0.75% maximum (Kad-Fischer titration). Typical technical grade butenediol free2es at about 8°C. 

K. Fischer, Comparison of I. G. Work on Eischer Synthesis, Technical OilMission Repod, Reel 13, Library of Congress, Washington, D.C., July 1941. H. Pichler, Medium Pressure Synthesis on Iron Catalyst, (Pat. Appl), Technical OilMission Report, Reel 100, Library of Congress, Washington, D.C., 1937-1943. 

Technical data, Fischer Labor- und Verfahrenstechnik, Industriepark Kottenforst, D-53340 Meckenheim b. Bonn, Germany. 

NTP. 1983. National Toxicology Program—technical report series no. 232. Carcinogenesis bioassay of pentachloroethane in Fischer-344/N rats and B6C3Fj mice. Research Triangle Park, NC U.S. Department of Health and Human Services, Public Health Service, National Institutes of Health. 

USDA, Beltsville, MD for a sample of chondrillasterol and Helga D. Fischer and Joel Carpenter for technical assistance. Support for this work by the USDA-ARS Cooperative Agreement No. 58-7B30-2-399 is acknowledged. 

Chemical reactions similar to the Fischer-Tropsch synthesis have been discussed for some years in connection with prebiotic chemistry they are described as Fischer-Tropsch type reactions (FTT). In its technically optimized form, the FIT... 

The formation of relatively stable vesicles did not require the presence of pure compounds mixtures of components could also have done the job. However, whether the concentrations of the compounds isolated from the Murchison meteorite would have been sufficient for the formation of prebiotic protocells or vesicles is unclear, even if concentration effects are assumed. Sequences in which the technical Fischer-Tropsch synthesis is the role model have been proposed as possible sources of amphiphilic building blocks. 

Sarkar, A., Neathery, J. K., and Davis, B. H. 2006. Separation of Fischer-Tropsch wax products from ultrafine iron catalyst particles. U.S. DOE Final Technical Report, Contract DE-FC26-03NT41965. 

Bhatt, Bharat L. 1995. Liquid phase Fischer-Tropsch. II. Demonstration in the LaPorte Alternative Fuels Development Unit—Topical report. Final (Vol. I/II Main Report), U.S. DOE Final Technical Report, DOE Contract DE-AC22-91PC90018. 

In principle, it would be possible to perform multistage mass spectrometry like in an ICR analyzer although with no gas CID would of course not be possible, but other dissociation methods could be employed. There might, however, be technical issues. At the time of writing, fragmentation is performed in the linear QIT preceeding the orbitrap in Thermo Fischer Scientific s instrument. Both pulsed and continuous ion sources can be employed. There are several ion sources that can be employed with Thermo Fischer Scientific s orbitrap. 

Sheets LP. 1993b. An subchronic dietary neurotoxicity screening study with technical grade disulfoton (DI-SYSTON) in Fischer 344 rats. Study No. 92-472-HS, Report No. 106332. Miles Inc. Agriculture Division, Toxicology, Stilwell, Kansas. 

As is well known, starting in 1923, Franz Fischer, Tropsch et al. developed the synthesis of hydrocarbons by carbon monoxide reduction to a technical process. They developed highly efficient multicomponent catalysts of the cobalt, nickel and iron type for this synthesis (43). 

The director of this Institute, Dr. Herbert Kolbel, Professor of Technical Chemistry, has been involved during the second World War II in the development of upgrading coal to other hydrocarbons according to the Fischer-Tropsch synthesis in bubble column reactors with suspended catalysts. He was interested in gaining more knowledge s on of transport processes and chemical reactions in these reactors. 

In 1976 he was appointed to Associate Professor for Technical Chemistry at the University Hannover. His research group experimentally investigated the interrelation of adsorption, transfer processes and chemical reaction in bubble columns by means of various model reactions a) the formation of tertiary-butanol from isobutene in the presence of sulphuric acid as a catalyst b) the absorption and interphase mass transfer of CO2 in the presence and absence of the enzyme carboanhydrase c) chlorination of toluene d) Fischer-Tropsch synthesis. Based on these data, the processes were mathematically modelled Fluid dynamic properties in Fischer-Tropsch Slurry Reactors were evaluated and mass transfer limitation of the process was proved. In addition, the solubiHties of oxygen and CO2 in various aqueous solutions and those of chlorine in benzene and toluene were determined. Within the framework of development of a process for reconditioning of nuclear fuel wastes the kinetics of the denitration of efQuents with formic acid was investigated. 

Thirteen-week toxicity studies of 2,2-bis(bromomethyl)propane-l,3-diol were conducted in male and female Fischer 344/N rats and B6C3Fi mice to determine target organ toxicity. 2,2-Bis(bromomethyl)propane-l,3-diol (technical grade, 78.6% pure) was administered by gavage in com oil for five days per week to rats, 6-7 weeks of age, at doses of 0, 50, 100, 200, 400 or 800 mg/kg bw and to mice, 6-9 weeks of age. 

NTIS, Hydrodynamic Study of a Fischer—Tropsch Bubble-Column Slurry Reactor, US Department of Commerce, National Technical Information Service, USA (1983)... 

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