Longer drain times

Table 10.1 provides a comparison of the device size and performance for both the lateral-type OFET and vertical-type OSIT. In this case, the channel length and effective area of the OFET are evaluated simply as the gap of the source and drain electrodes (100 xm) and the thickness of the CuPc film (200nm), respectively. On the other hand, the channel length and effective area of the OSIT correspond to the thickness of the CuPc film and the effective area of the top drain electrode. Therefore, the channel length of the OFET is 500 times longer than that of the OSIT, and the effective area of the OFETs is two orders smaller than that of the OSITs. The operational current of the OSIT is approximately two orders larger than that of the... 

Fig. 26 Dry thickness of poly(acryl amide) as a function of the position on the silica substrate prepared by slow ( ) and fast ( ) removal of the polymerization solution by utilizing the method depicted in Fig. 24. The inset shows the dry poly(acryl amide) thickness as a function of the polymerization time. Note that both data sets collapse on a single curve at short polymerization times. Regardless of the drain speed, the brush thickness increases linearly at short polymerization times and levels off at longer polymerization times. The latter behavior is associated with premature termination of the growing polymers...

Apparently, the potential for reducing this window of vulnerability Is fairly limited. The protein content of developing leaves could conceivably be reduced but this would slow the metabolic processes of growth and reduce the gross photosynthetic rate- Both would result in longer development times, prolonging vulnerability, and be a heavier drain on reserves, consequences which would reduce a tree s competitive advantage. 

At ambient or lower temperature for not longer than 24 hours, after which time such water shall be discarded to drain. 

The process recommended by Gay-Lussac, for the preparation of pure carbonate of soda, is also a good one, and lass troublesome than tire former. He washes the ordinary commercial crystals of this salt with cold water dissolves them in hot water, and cools tire solution rapidly by surrounding it with cold water, stirring it all tho time with a spatula, so that email crystals may be formed. These are to he collected on a funnel, and after the mothar-liquor has been drained off, washed with cold water till the drainings mixed with excess of nitric aofd no longer give a precipitate with nitrate of silver. The crystals are then to be dried, and when heated to low redness, the pure anhydrous carbonate remains. 

Experimental Procedure. The resin is washed with MeOH and a small portion (ca. 5 mg) is transferred to a disposable syringe (1 ml) fitted with a polypropylene filter disc. To the resin is added of DMF (1 ml) and the syringe is capped and shaken for 5 min. The DMF is then drained and a freshly prepared solution of Purpald dissolved in 1 M NaOH (250 pi) is added. The syringe is capped and shaken for 5 min. The solution is drained and the resin is washed with DCM (3x1 ml). The resin is then left uncapped for 10 min. The presence of free aldehydes is indicated by brown or purple beads. At lower values of resin loading, a longer air oxidation time may be required for color to develop (up to 20 min). 

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