Fusion systems

The uTadiation-induced thermal conductivity degradation of graphites and CFCs will cause serious problems in fusion system PFCs. As with ceramics, the thermal conductivity of graphite is dominated by phonon transport and is therefore greatly... 

The limiting temperature for graphite use in fusion systems is defined by tliermal sublimation (--1500-2000°C). However, a process which is very similar to thermal sublimation (in cause and in effect) appears to define the current temperature limit. This phenomenon, which is known as radiation enhanced sublimation (RES), is not clearly understood but dominates above a temperature of about 1000°C and increases exponentially with increasing temperatme. 

Gene Fusion Systems for Isolation of Cloned Fusion Proteins ... 

In recent years there has been a continued interest in the use of alkali metals, notably sodium and lithium, as heat exchange media in nuclear reactors and fusion systems respectively and as chemical reactants in fuel cells. This interest is reflected in the proceedings of several major conferences which are referenced in the bibliography (see p. 2.109). 

An alternative to repeated cloning of PCR products is a recombination-based approach developed by Liu et al. (1998) to permit the cloning of a PCR product into a plasmid and the rapid conversion of the plasmid to a number of different expression systems without the necessity of cloning the PCR product multiple, independent times. The method, termed the univector plasmid-fusion system (UPS), involves the insertion of the PCR product into a particular type of plasmid, called the univector, which can then be placed under the control of a variety of promoters or fused in-frame to various tag sequences. The system is based upon plasmid fusion using the Cre-lox site-specific recombination system of bacteriophage PI (Sternberg et al., 1981). The Cre enzyme is a site-specific recombinase that catalyzes recombination between two 34 base pair (bp) loxP sequences and is involved in the resolution of dimers formed during replication of the... 

Figure 4.3. Univector plasmid fusion system. Cre- loxP mediated site-specific recombination fuses the pUNI and pHOST plasmids at the loxP site. As a result, the gene of interest is placed under the control of the pHOST promoter and fused to any Tag sequences present in the pHOST plasmid.

Liu, Q Li, M. Z., Leibham, D., Cortez, D., and Elledge, S. J. (1998). The univector plasmid-fusion system, a method for rapid construction of recombinant DNA without restriction enzymes. Current Biology 8, 1300-1309. 

Zhang, A., Gonzalez, S.M., Cantor, E.J., and Chong, S. (2001) Construction of a mini-intein fusion system to allow both direct monitoring of soluble protein expression and rapid purification of target proteins. Gene 275, 241-252. 

Coated substrates were cured by exposure to UV light from a Fusion Systems model F450 curing unit with a 120 w/cm (300 w/in) "DM lamp. This unit was mounted on a variable speed conveyor (4 to 75 m/min 13 to 225 ft/min) and was capable of delivering a dose of 0.12 to 2.0 J/cm2 in a single pass in air or nitrogen as measured with a UV Process Supply Compact Radiometer. 

Equipment. Lamps used include an RC-500 xenon lamp obtained from Xenon Corp., Woburn MA 01801 a Portacure 1000F/1500F mercury lamp, American Ultraviolet, Murray Hill, N.J. 07974 and a Fusion Systems F300 ultraviolet lamp system operated with a V-bulb. 

The viral fusion systems provide a unique opportunity to study membrane fusion at the molecular level. It would be surprising if the mechanism of spike protein-mediated fusion did not have features in common with the mechanisms involved in the fusion reactions occurring during membrane vesicle traffic in the cell. It may even be that the viral fusion proteins have evolved from cellular fusion proteins. The trigger for cellular fusion would of course be different and other proteins would be needed to specify which membranes are to fuse together. 

N. Doi and H. Yanagawa Stable Protein-DNA Fusion System for Screening of Combinatorial Protein Libraries In Vitro. FEBS Lett. 457, 227 (1999). 

Oilseed rape Easy to exract protein using oleosin-fusion system... 

Spectral output of commercial microwave-driven lamps. (Courtesy of UV Fusion Systems.)... 

Fusion Systems (Gaithersburg, MD) at one time offered 240 W/cm microwave-driven excimer lamps within its VIP (Versatile Irradiance Platform) series. They were among the most powerful sources of UV radiant power,i available... 

Stelzner Fusion System. Stelzner fusion principles can be applied to heterocyclic components. However, strict application of the system is not always possible, and problems associated with deciding upon the degree of hydrogenation of the parent fused molecule often arise. For example, 34 and 35 are named thieno[3,2-a]indolizine and thieno-[2,3- >]indole by the IUPAC system. The Stelzner name for 35 would be thieno(2, 3 2,3)indole, but 34 cannot be similarly named, since in no... 

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