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101.
L Rudzik E Wüst F J Laven U Marquardt 《Zeitschrift für Lebensmittel-Untersuchung und -Forschung》1987,185(4):271-274
The theory of deconvolution of infra-red spectra is presented and illustrated using milk protein spectra. The advantage of this method is impressively demonstrated and its relevance for dairy farming shown using a simple example, the cooling of milk. 相似文献
102.
Summary Potential polymeric herbicides have been synthesized by reacting poly(acrylic acid)s with 3-aniino-1,2,4-triazole and 1-acetyl-5-amino-1,2,4-triazole, respectively. The produced copolymers contained the active moieties as pendant groups in the range of 3 to 27 per cent of weight and with a content of carboxyl groups up to 95 mol-%. The hydrolytic release of 3-amino-1,2,4-triazole was investigated.Part 12: M. Hartmann, H,-J. Bauer, A. Pritzsche and K. Wermann, Makromol. Chem., in press 相似文献
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A modern concept of cost-effective digital signal processing hardware for measuring and analysing data from experiments investigating turbulent two-phase flows is presented. Using an array processor together with an appropriate analog-to-digital converter, conventional turbulence characteristics such as turbulence spectra, correlation functions, turbulence intensities and — scales can be evaluated in real time. 相似文献
105.
C Kü?ükhüseyin C Silan N Akba? M Payat H Oncel A Barlas 《Canadian Metallurgical Quarterly》1997,8(4):287-299
The effect of adenosine on pulmonary vessels was studied in isolated perfused rat lungs. Drugs were administered intra-arterially in a fixed volume of 0.1 ml Krebs solution as bolus injections. Adenosine responses were obtained before and 10 min after drug injections. When applied in logarithmically increasing doses (1-100 micrograms/ml), adenosine caused dose-dependent increases in pulmonary perfusion pressure (e.g. pulmonary vasoconstriction) which were readily reversible. Challenging adenosine with quinidine, dihydroergocristine and cyproheptadine (2 micrograms/ml each) did not significantly alter adenosine responses. Pretreatment of lungs with 0.5 mM theophylline, 10 micrograms/ml indomethacin, 30 micrograms/ml tebokan (a PAF antagonist) or 1 microgram/ml methylene blue for 10 min, however, antagonized the vasoconstrictor effect of the drug significantly. From these experiments, it was concluded that the mechanisms underlying the pulmonary vasoconstrictor action of adenosine are complex, and that both types of purinoceptors, prostaglandins, PAF and other vascular endothelial hormones might be involved. 相似文献
106.
F. Müller 《Journal of Phase Equilibria》1994,15(3):285-294
Methods and equipment successfully employed in high- temperature calorimetry to measure partial and integral enthalpies of
mixing in liquid oxide systems are reviewed with special attention given to the drop-mixing method. This technique has been
used to measure enthalpies of mixing in binary liq-uid mixtures composed of network forming oxides (e.g. SiO2) and network modifying oxides (e.g. Na2O). Results for the systems Na2O-SiO2 and Na2O- B2O3 are presented graphically. Entropies of mixing were estimated by combining enthalpies with available data on Gibbs energies
of mixing. Prominent thermochemical features of glass-forming oxide melts are pointed out. The observed thermodynamic behavior
is discussed in relation to its structural basis. 相似文献
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