G clamps

Figure 1. Surface photografting apparatus (a) 100W high-pressure Hg lamp (b) interference filter (c) borosilicate glass plate (d) reacting solution (e) polymer film (f) glass vessel (g) clamp screw (17)...

CN206 Langley-Evans, S. C., A. G. Clamp, R. F. Grimble, and A. A. Jackson. Influence of dietary fats upon systolic blood pressure in the rat. Int J Food Sci Nutr 1996 47(5) 417-425. 

G-clamp nucleoside analogues 135 are of interest for the generation of artificial nucleotide sequences, as a result of their ability to bind tightly to guanine. Incorporation of these into antisense nucleotides is reported to confer enhanced potency <1999PNA3513>. 

Room-temperature embossing on PMMA (Lucite) and copolyester (Vivak) plates was achieved using a Si master. A hydraulic press was employed to apply the pressure (450-2700 psi). Such a room-temperature operation will prevent breakage of the Si master due to the differences in the thermal expansion coefficients of Si and PMMA. This room-temperature procedure improves the lifetime of the master, so that 100, instead of 10, devices per master can be embossed [177], For comparison, when embossing was performed at 140°C in a convection oven using G-clamps to apply the pressure, the Si template could be used to emboss up to 65 PMMA chips [215]. 

Ausln C, Ortega JA, Robles J, Grandas A, Pedroso E. Synthesis of amino- and guanidino-G-clamp PNA monomers. Org. Lett. 2002 4 4073-4075. 

The mutagenic ribonucleotide rPTP (87) has been used in an in vitro retroviral replication model. After four rounds of replication the mutation frequency was raised to 3.8 x 10 per nucleotide, with C U and U C mutations observed. It was suggested that such an analogue could induce mutations in a retroviral target beyond its error threshold. The tricyclic cytosine analogues phenoxazine and 9-(2-aminoethoxy)-phenoxazine (g-clamp, see (141)) have been incorporated into ODNs to study their effect with exonuclease. It was found that a single substitution at the 3 -terminus afforded complete protection of the ODN with snake venom phosphodiesterase. ... 

Following closure, the bowl is attached to a rotatable stainless steel plate. A ring, F, cemented to the glass bowl has three pins which fit into corresponding holes in the plate. Thumbscrews, G, clamp the ring and plate together. 

The type most used are toolmaker s clamps (Fig. 3.25), which are adjustable within a range of about 100 mm but will only clamp parallel surfaces. Greater thicknesses can be clamped using G clamps, so named because of their shape (Fig. 3.26). Due to the swivel pad on the end of the clamping screw, the G clamp is also capable of clamping surfaces which are not parallel. 

Non-reactive sealants are rubber-based hot melts and must be applied at a very high temperature (> 160°C). Since these hot melts do not cure, they remain thermoplastic. This means that additional mechanical fixtures, e.g. clamps, must be employed to prevent creeping at higher temperature. Their big advantage... 

A, three phase stator B, pedestal, C, case-hardened mild-steel shaft Diglass test bush E, 0 -rings F, spherical bush G, clamp screwj H, bush support pedestal L capacity type displacement transducer J, photoelectric cell, K, capacity plate for measurement of bush vibrations L, vent to annular space between 0 - rings M, base plate secured to spring-mounted concrete block. 

Maier, M.A. et al. Nuclease resistance of oKgonucleotides containing the tricyclic cytosine analogues phenoxazine and 9-(2-aminoethoxy)-phenoxazine ("G-clamp") and origins of then-nuclease resistance properties. Biochemistry, 41,1323,2002. 

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