Thermal decomposition of a volatile organic compound of radioactive iodine, methyl iodide CH3 131 I, in a gas flow in the presence of various modifications of "Fizkhmin" TM granulated materials based on silica gel impregnated with d-elements was studied. Under comparable experimental conditions, 97%-99% decomposition of CH3 131 I is achieved at ~770˚C without sorbents and at ~540˚C and ~465˚C in the presence of straight silica gel and of the material based on it, impregnated with compounds of Ni or its mixture with Cu (8-10 wt%), respectively.
The article deals with the phenomenon of priming, its effects in obtaining and evaluating the testimony of interrogated persons in criminal cases. The problem of obtaining evidence is central to the criminal process and is considered as a system of actions of participants in the preliminary investigation related to the knowledge and modeling of past events, forecasting the investigation process in the future and obtaining evidentiary and orienting information. The analysis of the studied materials of criminal cases on 1,300 crimes against life and health, sexual integrity and sexual freedom of the individual showed that, in the structure of evidence, the testimony of witnesses, victims, accused persons (suspects) occupies more than a half (54.7%). An important role in obtaining and evaluating the testimony of persons questioned in a criminal case is played by priming, which promotes the activation of behavioral and trace manifestations of human memory in order to reproduce complete and objective forensically significant information in the testimony. The object of the study was the activity of the interrogator and the interrogated person video recorded during the criminal proceedings in the situation of interrogation. The empirical basis of the study was materials of more than 250 criminal cases (murders, rapes, crimes against property, etc.), of which more than 302 video materials of interrogations were viewed. When the interrogated person is ready to give evidence, but for some reason (physiological, psychological) cannot do it, the use of priming effects will help to change this situation in a favorable direction. In conflict situations of interrogation, the use of priming effects helps to correct the unconscious manifestations of psychological defenses, reduce the manifestations of psychological trauma, and establish psychological contact. The analysis of the content of information at an unconscious level, the search for features and categories (comparison with memory standards) is associated with the detection of this information in the space (array) of implicit memory; at the same time, the criteria for such a selection are determined by long-term memory that preserves standards, motivational attitudes and ways of processing input information. Local effects of unconscious information are reflected in conscious cognitive activity, especially in the study of investigative situations. The use of such tactics contributes to the investigation of crimes. The potential for using priming effects in conducting investigative actions aimed at obtaining the testimony of participants in the pretrial stage of criminal proceedings (witnesses, victims, suspects, accused persons) expands the possibilities for obtaining information. The tactic of using priming in the investigation of criminal acts requires a deeper scientific study and experimental confirmation.
Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences has developed some novel sorbents designed for the filter units of the passive filtration system for radioactive discharge from the intercontainment space during heavy accidents with a complete loss of electricity supply at nuclear power plants. These are granulated sorbents based on large-pore silica gel containing nanometric particles of Ag or Ag-Ni compounds (trademark Fizkhimin). The sorbents allow to remove various radioactive iodine species (inorganic ones and methyl iodide) from a steam-gas phase with at least 10 4 decontamination factor. The high sorption properties of Fizkhimin sorbent with Ag particles were confirmed during tests at a test facility of the TUV Sudwest company (Karlsruhe, Germany). This passive filtration system is installed at the 1 st and 2 nd units of the Kudankulam nuclear power plant (India) and it is unique in the world practice.
The gas-phase conversion of U3O8, MoO3, SrO, and their mechanical mixtures, and also of ZrO2 into water-soluble compounds in the atmosphere of (NOx + vapor H2O) or HNO3 (vapor) was studied. In the course of gas-phase conversion, U3O8 and SrO transform into water-soluble compounds (nitrates, hydroxonitrates), whereas MoO3 and ZrO2 undergo no changes. The principal possibility of separating U from Mo and Zr by gas-phase conversion of the oxides in the atmosphere of (NOx + vapor H2O) or HNO3 (vapor) was demonstrated.
How to cite this paper: Kulyukhin, S.A., Kulemin, V.V., Krapukhin, V.B., Lavrikov, V.A., Gordeev, A.V., Shiryaev, A.A. and Bessonov, A.A. (2015) AbstractThe basic methods of concentration and purification of liquid radioactive waste on the nuclear power plant are distillation and ionic exchange. During vaporization of oil waste products and the fulfilled washing solutions the part of oil passes into a condensate. Clearing of such condensate on ion-exchanged filters results to oiling of ion-exchanged materials and to decrease number of filter cycles. Due to the often regeneration of ion-exchanged filters additional volumes of waste products as the fulfilled reclaiming solutions, washing and loosening waters are formed. The attention of scientists was involved with methods of clearing of water environments from the organic substances, based on deep oxidizing transformations of hydrocarbons into carbonic gas and water. From processes of oxidation of hydrocarbons up to CO2 and H2O, sold at moderate conditions, our attention has involved photochemical oxidation with the help of UV-radiation.
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