Effect of relative humidity

Table 7. Effect of Relative Humidity on Charge Generation...

Figure 18.16. Effect of relative humidity on the water ab.sorption of the nylons...

Fig. 3.1 Effect of relative humidity and atmospheric pollution on the rusting of iron (after...

Stine, S. W., Song, I., Choi, C. Y., and Gerba, C. P. (2005). Effect of relative humidity on preharvest survival of bacterial and viral pathogens on the surface of cantaloupe, lettuce, and bell peppers. /. Food Prot. 68,1352-1358. 

The effect of relative humidity and temperature on the physical and structural properties of the 1 1 isopropanol solvatomorph of warfarin has been studied [58], Below the critical relative humidity of 60-68% the solid is not hygroscopic, but becomes deliquescent at higher values of relative humidity without exchange of water for isopropanol. Storage of the solvate-morph at elevated temperatures causes formation of an amorphous solid owing to loss of isopropanol, which may proceed through an intermediate crystalline phase. 

The formation of niclosamide hydrates, and the effect of relative humidity on the solvatomorphs obtained from acetone and ethyl acetate has been studied [79], The acetone and ethyl acetate solvatomorphs could be desolvated, and exposure to elevated humidity resulted in the formation of two hydrate structures. Each hydrate could be dehydrated into a different anhydrate phase, but only the hydrate formed from the acetone desolvate could be rehydrated to form a hydrate phase. Dynamic vapor sorption has been used to develop a method for determining the onset relative humidity of a glass transition and associated crystallization process [80]. 

McQuain M.K., Seale K., Peck J., Levy S., Haselton F.R., Effects of relative humidity and buffer additives on the contact printing of microarrays by quill pins, Anal Biochem. 2003 320 281-291. 

Figure 4.10 The effect of relative humidity (%) on the stress-strain curve of paper.

L7. Lindblad, N. R., Effects of relative humidity and electric charge on the coalescence of curved water surfaces, J. Colloid Sci. 19, 729 (1964). 

McQuain et al. (2003) undertook a detailed study on the effects of relative humidity and a direct comparison of fhe impacts DMSO vs. betaine in print buffer on the overall performance of quill pin printing. A video microscope was employed to visualize and track the drying behaviors of the various printing inks. A Cy5-labeled 466-bp dsDNA probe was used to monitor the printing process. Drop-drying behavior, bulk evaporation from the quill reservoir, surface tension changes, and spothng characteristics (spot diameter, spread, and number deposited) were examined at different RH levels. 

FIGURE 1.1 Effect of relative humidity of air on evaporation of phenylacetic acid from two surfaces in the presence and absence of sebum stainless steel (SS) and cellulose (C). Relative humidity 0% (a) or 100% (b), both at 20°C. (Adapted from Regnier and Goodwin, 1977.)... 

Nolle AJ, Treat ND, Cohen RE, Rubner MF (2008) Effect of relative humidity on the Young s modulus of polyelectrolyte multilayer films and related nonionic polymers. Macromolecules 41 5793-5798... 

Relative humidity and temperature are two variables which have influence on the chromatographic behavior of the solutes [2] but which can not always be set at desired levels. The relative humidity is expected to have a large influence, while temperature has a small influence. In reference [2] it is stated that a temperature change of 5 degrees seldom exceeds reproducibility limits of the standard working techniques. It is most feasible to discuss the effect of variation in relative humidity and temperature in terms of activity. Therefore in the following paragraphs first the concept of activity will be introduced. Then the concept will be applied in a short examination of the effect of relative humidity and temperature on the retention. 

Hegg, D., T. Larson, and P.-F. Yuen, A Theoretical Study of the Effect of Relative Humidity on Light Scattering by Tropospheric Aerosols, J. Geophys. Res., 98, 18435-18439 (1993). 

Pankow, J. F., J. M. E. Storey, and H. Yamasaki, Effects of Relative Humidity on Gas Particle Partitioning of Semivolatile Organic Compounds to Urban Particulate Matter, Environ. Sci. Technol., 27, 2220-2226 (1993). 

Table XV. Effect of Relative Humidity on the Bond Strength and Useful Life of SD-851-2 Liner ...

Fig. 8.6 Effect of relative humidity (0, 30, 50 and 60%) on formation of C02 and benzaldehyde in the heterogeneous photooxidation of tolene for Ti02-toluene (80 ppm)-air system at a reaction time of 10.3 min.

Other system variables that will have an effect on the separation process are temperature and relative humidity of the gas. Increasing the temperature raises most permeabilities by about 10 to 15% per 10°C and has little effect on separation factors. The effect of relative humidity is variable depending upon the membrane used. High relative humidities, greater than 95%, are generally detrimental due to membrane plasticization. Contamination with liquid water has been found to dramatically reduce membrane performance for cellulose acetate ... 

Figure 1 Effect of relative humidity on fold endurance of wood pulp waterleaf sheets aged at 90°C.

Effect of relative humidity on pH of wood pulp waterleaf book a aged at 90 0... 

Effect of relative humidity on brightness of Foldur Kraft paper aged aa sheets and books at 90 5 ... 

Experiments were performed to determine the effect of relative humidity, temperature, inlet S02 concentration, and amount of Ca(0H)2, on the reactivity of pure Ca(0H)2 towards SO2. 

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