Исследование структуры и свойств оксидных нанотрубок, сформированных на подложках сплава системы Ti-Nb

В работе представлены результаты исследований оксидных нанотрубок сформированных методом электрохимического анодирования с последующим термическим отжигом с целью кристаллизации композита. Показано влияние концентрации Nb на фазовый состав сплава Ti-Nb. Выявлено влияния концентрации ниобия на морфологические параметры, состав, структуру и клеточную адгезию сформированных нанотрубок.The paper presents the results of studies of oxide nanotubes formed by electrochemical anodization with subsequent thermal annealing to crystallize the composite. The influence of the Nb concentration on the phase composition of the Ti-Nb alloy was shown. The effect of niobium concentration on the morphological parameters, composition, structure and cell adhesion of nanotubes formed was revealed

Decays of bosonic and fermionic modes on a domain wall

The decays of excited bosonic and excited fermionic modes in the external field of the domain wall are studied. The wave functions of the excited fermionic modes are found analytically in the external field approximation. Some properties of the fermionic modes are investigated. The reflection and transmission coefficients are calculated for fermion scattering from the domain wall. Properties of the reflection and transmission coefficients are studied. The decays of the first excited fermionic mode are investigated to the first order in the Yukawa coupling constant. The amplitudes, angular distributions, and widths of these decays are found by analytical and numerical methods. Decays of the excited bosonic mode are also investigated to the first order in the Yukawa and self-interaction coupling constants. The amplitudes, angular distributions, and widths of these decays are obtained analytically and by numerical methods

Расчетная оценка дозовых характеристик в системе хранения ОЯТ

Объектом исследования является отработавшее ядерное топливо реактора РБМК третьего поколения с глубиной выгорания 35 ГВт·сут/(тU). Цель работы – определение радиационной безопасности при хранении в ТУК-109 отработавшего ядерного топлива третьего поколения, а также получение информации о составе и характеристиках наведенной и накопленной в ТУК радиоактивности за период эксплуатации. В результате исследования были получены значения нейтронного потока во всём объеме ТУК при загрузке в него ОЯТ с глубиной выгорания 35 ГВт·сут/(тU), а также получена мощность экспозиционной дозы, формируемая источниками фотонного излучения в различных зонах конструкции контейнера через 2 и 10 лет после снятия его с эксплуатации хранения ОЯТ.The object of study is spent nuclear reactor fuel is a third-generation RBMK with burnup of 35 GW · d / (tU). Objective - definition of radiation safety during storage of spent nuclear fuel of the third generation of TUK-109, as well as obtain information about the composition and characteristics of the induced and accumulated in TUK radioactivity during the operation period. As a result of the study were obtained values ​​of the neutron flux in the entire volume of the TUK when loading it SNF burnup of 35 GW · d / (tU), and the obtained exposure dose rate generated by the source of photon radiation in different regions of the container structure after 2 and 10 years after its removal from the spent nuclear fuel storage operation

Роль когнитивных компонентов в формировании иноязычной компетенции

Актуализация когнитивного компонента иноязычной компетенции направлена на приобретение обучающимися нового учебного опыта на основе овладения метакогнитивными стратегиями осуществления учебной деятельности, что обуславливает успешность процесса формирования предметных навыков, а также личностное развитие обучающихся в процессе решения учебных задач

On the origin and persistence of praedial toponyms in central Italy

This paper recognises the origin of the current series of praedial place names, through successive transcripts, in the Roman land ownership system of republican and imperial times, experimenting with some methodological aspects of the use of digital cartographic sources. Acknowledging the widespread presence of praedial place names in modern cartography and medieval notarial sources, the research reconstitutes the history of the land ownership system, considering the landscape as “quella forma che l'uomo, nel corso ed ai fini delle sue attività produttive agricole, coscientemente e sistematicamente imprime al paesaggio naturale” [“the form that man, in the course and for the purpose of agricultural production, consciously and systematically imposes to the natural landscape”] (Sereni, 1961, p. 29). The two sets of data, morphology and toponymy, are proposed here as an antonymic dyad representing the symbolic relationship between population and territory. The research considers two case studies: the valley of the river Savio, and the territory belonging to the abbey of Subiaco in the Lazio region. After the close examination of toponyms in the Italian official map (scale 1:25,000) a list of praedial names was selected and, with a GIS, was correlated with another set of place names extracted from medieval notarial documents (IV-XII cent.). For some of these place names it was possible to track back the history of the site to the Roman praedium and in three cases to identify the Roman owner, through the analysis of literary and epigraphical sources. Starting from these three specific praedia it was therefore possible to infer the origin and the history of praedial place names in central Italy. Nevertheless, the persistence of these names until today was possible only through the medieval notarial transcriptions, showing some continuity in the land ownership system through the Middle Ages

Расчет затрат сер-верной платформы в поддержке стандарта witsml v 1.4.1. для одной компании

Выпускная квалификационная работа 1 с., 1 рис., 1 табл., 1 источников, 1 прил.Final qualifying work 1 p., 1 fig., 1 tab., 1 sources 1 adj