Цифровые методы исследования: новый вектор информатизации библиотек

A large number of conferences on automation of library processes are held abroad. These events discuss the most topical and important issues facing libraries in the implementation of modern information technologies. The article provides an overview of four major international conferences, which brought together programmers, linguists and librarians, who shared their experiences and planned for future. The authors present the analysis of changes in the subject of conferences for the recent years, conclude on the significant increase in the number of studies on semantic analysis of data stored in libraries and mark the most interesting reports. In recent years, the number of reports on Linked Open Data (LOD) has been increasing. However, most of these reports focus on the publication of data in LOD, with very little research on the extent of use of already published data. The article provides examples of such studies. The authors highlight the constant interest to the topic of Digital Humanities and to the fact that the research within this area is often focused on the problems of modern society. The article notes the new direction in the activity of electronic libraries — storage of the research data, and gives the examples of implementation of these tasks.За рубежом проходит большое количество конференций на тему автоматизации библиотечных процессов. На этих мероприятиях обсуждаются самые актуальные и важные вопросы, встающие перед библиотеками при внедрении современных информационных технологий.В статье приведен обзор четырех основных международных конференций, на которых собираются программисты, лингвисты и библиотекари и делятся опытом и планами на будущее. Приведен анализ изменения тематики конференций за последние годы, сделан вывод о значительном увеличении количества исследований, посвященных семантическому анализу хранящихся в библиотеках данных, отмечены наиболее интересные доклады. В последние годы увеличивается количество докладов, посвященных Linked Open Data (LOD). Однако большинство из этих докладов посвящено публикации данных в LOD, очень мало исследований о масштабах использования уже опубликованных данных. В статье приведены примеры подобных исследований. Постоянный интерес вызывает тема Digital Humanities («Цифровые гуманитарные исследования») и то, что проводимые в ее рамках исследования часто сосредоточены на проблемах современного общества. Отмечено новое направление деятельности электронных библиотек — хранение исследовательских данных и организация научных коммуникаций. Приведены примеры реализации этих задач

Monolithic and hybrid integration of InAs/GaAs quantum dot microdisk lasers on silicon

A method of hybrid integration of quantum dot microdisk lasers with silicon wafer is proposed and realized. In addition to the possibility of combining microlasers with various silicon-based electronic and photonic devices, this makes it possible to significantly improve heat removal from the active region of the microlaser. The thermal resistance normalized to the mesa area reaches the level of about 0.002 (K/W)*cm2, which is significantly lower than the corresponding values of QD microlasers on GaAs substrate and monolithically grown on Si. As a result, the threshold current as well as current-induced shift of emission wavelength are reduced in continuous-wave regime

Current induced mode competition in microdisk lasers

A phenomenon of mode competition in microdisk lasers under various injection currents was studied. The increase of the injection current causes rise of the internal temperature. The modeling has shown that this increase leads to the shift of the gain spectrum. That may be enough to cause drastic redistribution of emitted power between microdisk modes. This effect has been studied in the experiment and by the numerical simulation

Software monitoring system of banking devices of self-service: Engineering-psychological approach to development of the system

Information technology is an innovative developing space that is not limited to territorial boundaries and is becoming increasingly global in scope. It actively provides solutions for the tasks of both the townsfolk and entire sectors of the industry, being one of the most important factors that have a strong influence on reality

Near field scanning optical microscopy for investigation of high power semiconductor lasers

В данной работе были исследованы карты распределения ближнего поля InGaAs/GaAs/AlGaAs полосковых инжекционных лазеров при различных токах накачки. Было показано, что в структурах, состоящих из двух резонансно связанных волноводов, наблюдается подавление мод высоких порядков.Near field intensity distributions of InGaAs/GaAs/AlGaAs lasers including broadened waveguides based on coupled large optical cavity (CLOC) structures were investigated. It was demonstrated that scanning near field optical microscopy gives direct proof of suppressing the transverse high-order mode lasing.Работа выполнена при поддержке РНФ (соглашение № 14-42-00006-П