Use of computers to exclude the influence of radiometer instability upon measurement results

A radiometer, practically insensitive to great fluctuations in the equipment amplification coefficient, was developed by dividing the useful signal by a reference signal and modulating the two signals at different frequencies. The signals are simultaneously separated by corresponding synchronous detectors and recorded over two channels. The operation is simplified by replacing the continuous signals by a sampling of discrete values, and using a digital computer. The four steps involved in the process are described and a block diagram is included. This technique not only directly connects the radiometer with the computer, but also records all data provided by the control and signal channels

The gamma-ray telescope Gamma-1

French and Soviet specialists have designed and built the gamma-ray telescope GAMMA-1 to detect cosmic gamma rays above 50 MeV. The sensitive area of the detector is 1400 sq cm, energy resolution is 30% at 300 MeV, and angular resolution 1.2 deg at 300 MeV (and less than 20' arc when a coded aperture mask is used). Results on calibration of the qualification model and Monte-Carlo calculations are presented

Assessment of psycho-emotional state of student with Mitral regurgitation and possible ways of its pharmacological correction

The article presents the results of psycho-emotional state assessment a person with Mitral regurgitation when he lies using the device for the physiological parameter record, and the possible ways of its pharmacological correction are offere

Russian-French Agreements of 1891-1893 in International Relations at Turn of 19th and 20th Centuries

The article is dedicated to Russia’s European policy from the formation of the German Empire in 1871 to the beginning of World War I. It examines the historical conditions, reasons, and nature of the Russo-French military-political alliance of 1891-1893. The role of Emperor Alexander III in the political rapprochement between Russia and France on an anti-German and anti-Austrian basis is demonstrated. The existence of mutual interest between Russia and France in forming a military-political alliance is revealed. The Bierk Treaty of 1905 between Emperors Wilhelm II and Nicholas II is analyzed, showing that this treaty fundamentally contradicted the development of military-political cooperation between Russia and France and therefore was not implemented. The conclusion is drawn regarding the significance of the Russo-French alliance of the early 1890s for the foreign policy and historical destiny of the Russian Empire. Germany's interest in strengthening its influence on the foreign policy of the Russian Empire is shown. It is proven that Germany’s attempts to attract Russia to its side did not succeed, and Russia maintained its alliance with France, which was more significant for it during the period under consideration, despite the fact that ultimately this alliance led to the involvement of the Russian Empire in a world war