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81.
Prof. Dr. O. Fuchs 《Colloid and polymer science》1973,251(5):353-355
Ohne Zusammenfassung 相似文献
82.
83.
84.
A. Gamp M. Bürgel M. R. Clover Ch. Egelhaaf H. Fuchs B. Gebauer H. Homeyer W. Rauch J. C. Jacmart 《Zeitschrift für Physik A Hadrons and Nuclei》1982,309(1):49-53
Angular and energy correlations betweenα-particles and deep-inelastic projectile-like fragments were measured for the system36Ar+197Au atE Lab=380 MeV. At most half of the coincident events can be attributed to statistical emission ofα-particles from the fully accelerated projectile-like fragments. The remainder of the events may be due to direct emission during the first 10?22 s of the scattering process and to preequilibrium processes taking place within some 10?21 s. 相似文献
85.
O. Fuchs 《Fresenius' Journal of Analytical Chemistry》1967,232(5):355-364
Ohne Zusammenfassung 相似文献
86.
D. Andre A. Dworkin P. Figuiere A.H. Fuchs H. Szwarc 《Journal of Physics and Chemistry of Solids》1985,46(4):505-513
This calorimetric study of crystalline thiophene between 77 and 250 K reveals the existence of four phase transitions at 174.50, 170.49, 136.8 and 111.26 K, respectively. The transition II-III (170.49 K) is easily avoided during cooling, leading to metastable phases, which, in turn, exhibit their own phase transitions.These findings explain previously confused observations. The existence of stable and metastable phases was confirmed by thermally stimulated current measurements. Intermolecular Raman spectra were observed between 10 and 300 K and assigned to the observed phases. Some predictions are made concerning the low-temperature behaviour of thiophene. Tentative rules are proposed to number metastable phases relative to stable ones. 相似文献
87.
88.
E. Martini H. Kämmerer H. Fasold F. Kloos M. Fleißner K. Dehnicke O. Fuchs 《Colloid and polymer science》1981,259(8):865-872
Ohne Zusammenfassung 相似文献
89.
We present simulation results addressing the dynamics of a colloidal system with attractive interactions close to gelation. Our interaction also has a soft, long-range repulsive barrier that suppresses liquid-gas type phase separation at long wavelengths. The new results presented here lend further weight to an intriguing picture emerging from our previous simulation work on the same system. Whereas mode coupling theory (MCT) offers quantitatively good results for the decay of correlators, closer inspection of the dynamics reveals a bimodal population of fast and slow particles with a very long exchange time scale. This population split represents a particular form of dynamic heterogeneity (DH). Although DH is usually associated with activated hopping and/or facilitated dynamics in glasses, the form of DH observed here may be more collective in character and associated with static (i.e., structural) heterogeneity. 相似文献
90.
Austin RH Xie A van der Meer L Redlich B Lindgård PA Frauenfelder H Fu D 《Physical review letters》2005,94(12):128101
The amide I and II bands in myoglobin show a heterogeneous temperature dependence, with bands at 6.17 and 6.43 microm which are more intense at low temperatures. The amide I band temperature dependence is on the long wavelength edge of the band, while the short wavelength side has almost no temperature dependence. We compare concepts of anharmonic solid-state crystal physics and chemical physics for the origins of these bands. We suggest that the long wavelength side is composed of those amino acids which hydrogen bond to the hydration shell of the protein, and that temperature dependent bands can be used to determine the time it takes vibrational energy to flow into the hydration shell. We determine that vibrational energy flow to the hydration shell from the amide I takes approximately 20 ps to occur. 相似文献