Die M?glichkeit einer Verf?lschung der Mentholstifte mit Thymol

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Evaluation of the energy spectrum of solar protons according to the balloon measurement data and Monte Carlo simulation

The method for evaluating the energy spectra of solar protons at the boundary of the Earth’s atmosphere according to the data of balloon measurements carried out at the Lebedev Institute of Physics, Russian Academy of Sciences, and the results of Monte Carlo simulation of the processes of proton interaction in the Earth’s atmosphere has been developed. The balloon measurements during solar proton events make it possible to determine the absorption spectra of solar cosmic rays in the atmosphere. Comparison of the experimental data with the results of the simulation of propagation of solar protons (E _p = 10 MeV-10 GeV) in the atmosphere, based on GEANT-4, allows determination of the energy spectra of solar protons at the atmospheric boundary. The results of the determination of the energy spectra of solar protons in a number of solar proton events in the current (23th) solar activity cycle are reported.     

Optimization of receiver arrangements for passive emitter localization methods

Passive localization of an object from its emission can be based on time difference of arrival or phase shift measurements for different receiver groups in sensor arrays. The accuracy of the localization primarily depends on accurate time and/or phase measurements. The frequency of the emission and the number and arrangement of the receivers mainly effect the resolution of the emitter localization. In this paper optimal receiver positions for passive localization methods are proposed, resulting in a maximal resolution for the emitter location estimate. The optimization is done by analyzing the uncertainty of the emitted signal, including its frequency. The technique has been developed specifically for ultrasound signals obtained from omnidirectional transducers, although the results apply for other application using passive localization techniques.     

Modellrechnung der Gyro-Synchrotronstrahlung bei Sonnenausbrüchen

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Ueber die volumetrische Bestimmung des S?uregehaltes der Alkaloidsalze

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Eine neue Reaction des Cocainum hydrochloricum

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Die Farbenreaction, welche Strychnin

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Verhalten des Schwefels zu Ammoniak

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Zur Untersuchung von Drogen und daraus dargestellten Pr?paraten

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