Experiences relational change

Alefeld [19] worked with closed Zeolite/water systems. They reached storage capacities of about 250 kWh/i related to the dry mass of Zeolites in their experiments. The change in the water uptake was about 25% of the Zeolites dry mass. The load levelling within a district heating net was identified... 

The possible explanation of these results is related to the construction of dikes in this area a few years prior to the experiment. This changed the biogeochemical cycles of many nutrients in natural ecosystems too. Furthermore, the input of nutrients with flooded waters was not taken into account. 

For chronic exposure in animals, only one oral study in rats (hydrogen cyanide) was located (Howard and Hanzal 1955). However, the reliability of this study is low because of the unstable cyanide levels in their feed throughout the experiment due to evaporation of cyanide. Furthermore, no effects were found in the study besides nondose-related changes in weight gain in female rats, but not in male rats. No chronic studies in animals were located for the inhalation and dermal routes. Therefore, data are not sufficient to derive MRL values for chronic exposure. Additional chronic-duration studies in animals would be helpful to determine thresholds for target organs. 

Respiratory Effects. In two separate experiments in which male and female rats were exposed intermittently for 3 weeks to 0.1,0.5, or 3.7 mg/m in the first experiment, and to 0.02 mg/m (males and females) or 3.1 mg/m (females only) in the second experiment, inflammatory changes were found throughout the respiratory tract at 0.5, 3.1, and 3.7 mg/m3 (Thyssen 1980). These inflammatory changes were considered to be related to reactive bone marrow changes (see Section... 

The experiments with sulfide and sulfate media were designed to relate changes of the sulfur compounds to bacterial growth, and also to try to explain the increased yields at the higher pH. The results are shown in Figures 6-9. 

Historically, Saletu (1976) performed a series of EP experiments in health subjects to stud the action of several antipsychotics, antidepressants, anxiolytics and psychostimulants. Similar to Fink and Itil for the pharmaco-EEG, he reported on systematic, drug-type-related changes in EP latencies after somatosensoiy stimulation of his subjects. 

Whereas the fundamental residual property relation derives its usefulness from its direct relation to experimental PHT data and equations of state, the excess property formulation is useful because 1 E, HE, and y are all experimentally accessible. Activity coefficients are found from vapor—liquid equilibrium data, and T E and HE values come from mixing experiments. Property changes of mixing are defined by the equation,... 

Previous infections, for example mumps, which causes inflammatory changes in the seminiferous tubules, can result in infertility. Males experience age-related changes in hormones and in the reproductive tract sperm production will decline by approximately one-third by the age of 65 years. However, most elderly men still produce large enough numbers of spermatozoa to remain fertile throughout their life. 

In electrocapillarity experiments the change of surface tension with changing surface potential is measured. With mercury such measurements were already done in the nineteenth century [147], Mercury has the advantage that the surface tension can easily be measured, since it is a liquid. Such measurements yielded important information about the behavior of electrified surfaces. In particular, the relation between surface charge and surface potential or the adsorption of ions to metal surfaces was investigated by electrocapillary experiments. 

Animal experiments could be designed to determine whether there are age-related differences in pulmonary responses to inhaled asbestos fibers (e g., fibrosis, cell proliferation, gene expression, macrophage production of reactive chemicals). For example, adult rats have been shown to display, within 20 days, a range of dose-related changes in pulmonary inflammation indices, increases in pulmonary cell proliferation. 

Isaksson, L, Pihl, L., and van Montfrans, J. (1994). Eutrophication related changes in macrovegetation and foraging of young cod Gadus morhuya L.) A mesoscosm experiment. J. Exp. Mar. Biol. Ecol. 177, 203-217. 

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