Management of professional self-determination of applicants at the technical university

Рассматриваются проблемы формирования контингента конкурентоспособных обучающихся в университете. Показана необходимость и современные способы управления профессиональным самоопределением абитуриентов. Предложено активнее использовать современные образовательные электронные технологии при организации профориентационной работы. Problems of competitive students contingent forming at the university are considered. The necessity and modern methods of professional self-determination managing of entrants are shown. It is proposed to make active use of modern educational electronic technologies when organizing vocational guidance work

Genesis of active phase in MoW/Al2O3 hydrotreating catalysts monitored by HAADF and in situ QEXAFS combined to MCR-ALS analysis

Alumina supported MoW hydrotreating catalyst was synthesized by using bimetallic H-4[SiMo3W9O40] Keggin heteropolyacid (HPA). Catalysts based on monometallic H-4[SiMo3W9O40] and H-4[SiMo3W9O40] and their mixture were also studied. Genesis of the active phase was studied during atmospheric gas sulfidation by H2S/H-2 of the catalysts by in-situ Quick X-ray absorption spectroscopy (XAS) and High-Angle Annular Dark-Field (HAADF) imaging. The combination of different chemometric tools such as Principal Component Analysis (PCA) and Multivariate Curve Resolution with Alternating Least Squares (MCR-ALS) allowed to determine the number of intermediate species, their chemical nature and concentration profiles during sulfidation. It was found that tungsten sulfidation using bimetallic HPA precursor started at lower temperature, compared to W sulfidation in the monometallic and in the mixture of monometallic HPA catalysts. Simultaneous sulfidation of Mo and W atoms in case of the bimetallic molecular precursor can govern the formation of mixed MoWS2 phase, which formation during activation was evidenced by HAADF

The effect of the Mo/W ratio on the catalytic properties of alumina supported hydrotreating catalysts prepared from mixed SiMo6W6 and SiMo9W3 heteropolyacids

International audienceNew mixed H 4 [SiMo n W n-12 O 40 ] (n = 6 and 9) Keggin type heteropolyacids (HPAs) have been successfully synthesized, as confirmed by single-crystal XRD, Raman and IR spectroscopy analysis. The resulting polyoxometallates were used for preparation of hydrotreatment catalysts. Mo(W)/Al 2 O 3 catalysts were synthesized by incipient wetness impregnation of alumina support with water solutions of prepared mixed Keggin HPAs and corresponding counterparts based on mixture of monometallic H 4 [SiMo 12 O 40 ] and H 4 [SiW 12 O 40 ] HPAs. Oxidic catalysts were analyzed by Raman spectroscopy to determine the precursor structure after deposition. Catalysts in sulfided state were characterized by high-resolution transmission electron microscopy (HRTEM), high angle annular dark field imaging (HAADF) and X-ray photoelectron spectroscopy (XPS) and were tested in co-hydrotreating of dibenzothiophene (DBT) and naphthalene. The use of new mixed Keggin HPAs made it possible to obtain catalysts with mixed MoWS 2 active centers, which was confirmed by HAADF. Moreover, the Mo/(Mo + W) ratio has a direct effect on the structure of the active phase species. An ordered core-shell structure with Mo atoms in the core is maintained until the fraction of molybdenum in mixed MoW/Al 2 O 3 catalyst exceeds 50 %, where a more disordered structure is observed. Moreover, this Mo/(Mo + W) ratio of 0.5 is optimal to achieve a maximum catalytic activity. Indeed, the turnover frequencies (TOF) of the MoWS 2 edge centers with random atoms distribution in a cluster as in Mo 9 W 3 /Al 2 O 3 , was lower compared to that of Mo 6 W 6 /Al 2 O 3 with core-shell structure

RESEARCH OF MECHANICAL PROPERTIES OF AN EXPLOSIVE WITHIN A TEMPERATURE RANGE FROM 20 TO 100 °С

Взрывчатое вещество (ВВ) представляет собой спрессованную структуру, состоящую из гранул взрывчатки, армирующих волокон и связующего компонента. ВВ, как конструкционный материал, имеет различные диаграммы деформирования при растяжении и сжатии. В РФЯЦ-ВНИИТФ проведены испытания дух типов образцов из ВВ: полусферические образцы, нагруженные внутренним давлением, и цилиндрические образцы в условиях одноосного сжатия. Испытания проведены при температурах 20, 60, 80 и 100 °С. По результатам испытаний определены диаграммы деформирования ВВ в температурном диапазоне от +20 до +100 °С.The explosive is а pressed substance consists of an explosive granules, reinforcing fibers and a binder. The explosive as a structural material has different curves of deformation under tension and compression. In RFNC-VNIITF, tests were held for two types of the explosive: hemispherical samples loaded by internal pressure and cylindrical samples in uniaxial compression. Tests were held at temperatures of 20, 60, 80 and 100 °С. According to results of experiments the deformation curves of explosive were obtained within a temperature range from 20 to 100 °С

JUSTIFICATION OF THE MODEL STRENGTH OF THE HAND PNEUMATIC TRENCH-MORTAR IN STATIC AND DINAMIC LOADING

В настоящее время в РФЯЦ-ВНИИТФ проводится разработка ручного пневматического миномета (РПМ), в котором запуск мины происходит при по-мощи сжатого воздуха без использования взрывчатых веществ и порохов. Для проведения предварительной экспериментальной отработки разработан макет миномета. Для снижения стоимости предварительной отработки в макете проведена замене легких алюминиевых материалов на сталь. В докладе представлены результаты расчетов на прочность корпуса макета миномета при статической нагрузке и ударном взаимодействии. Анализ НДС миномета проводился в двух пакетах программ (ПП): ЛОГОС-Прочность и аналогичного коммерческого продукта (КП).Nowadays developing of the hand pneumatic trench-mortar is carry out in RFNC-VNIITF and activation of mina occurs by compressed air without using of explosive or powder. The model of a trench-mortar has been developed for an experimental pretreatment. Light aluminium materials have been replaced to steel for reduction cost of pretreatment. The paper presents the results of calculation for the model strength of the trench-mortal during static load and impact interaction. Analysis of stress-strain state of the trench-mortal is made in two software package: LOGOS-strength and a similar commercial product

Admission of persons with special needs at the university: role of information and communication technologies

В статье рассматриваются вопросы, связанные с использованием информационно- коммуникационных технологий при организации приема в университет лиц с особыми потребностями. Рассмотрены предпосылки учета требований для лиц с особыми потребностями при автоматизации приемной кампании. Указаны проблемы при организации приема лиц с особыми потребностями в учреждения высшего образования и предложены пути их решения. This paper discusses issues related to the use of information and communication technologies in the organization of admission to the university of persons with special needs. The prerequisites for taking into account the requirements for persons with special needs in the automation of the admission campaign are considered. The problems of organizing the admission of persons with special needs to institutions of higher education are indicated and the ways of their solution are suggested