INTEROPERABILITY ISSUES OF EARTH OBSERVATION \ud GRID SYSTEMS\ud

Interoperability Issues of Earth Observation Grid Systems. A. Shelestov, S. Skakun, M. Korbakov. In this paper we review issues of Earth observation Grid systems integration. We describe different approaches for the solution of problems of certificate trust, data transfer, geospatial data access, task management, etc. As an example, we describe InterGrid system for environmental and natural disaster monitoring that integrates several regional and national Grid systems.\ud Интеграция Grid-систем исследования Земли. Шелестов А.Ю., Скакун С.В., Корбаков М.Б. В работе рассматриваются вопросы интеграции Grid-систем исследования Земли. Приведены возможные подходы к решению задач, возникающих при интеграции: обмен сертификатами, обмен данными, доступ к геопространственным данным, выполнение заданий и т.д. В качестве примера использования описанных решений описана InterGrid-система, которая объединяет несколько региональных и национальных Grid-систем и направлена на решения задач экологического мониторинга и мониторинга природных чрезвычайных ситуаций.\u

The Use of Landsat 8 and Sentinel-2 Data and Meterological Observations for Winter Wheat Yield Assessment

This study focuses on winter wheat yield assessment from NASA's Harmonized Landsat Sentinel-2 (HLS) product and meteorological observations through phenological fitting. Vegetation indices (VIs), namely difference vegetation index (DVI), normalized difference vegetation index (NDVI) and enhanced vegetation index (EVI2), extracted from satellite optical data, are fitted per pixel against accumulated growing degree days (AGDD) using a quadratic function. Accumulated VIs are correlated against winter wheat yields. Results show a better performance from DVI compared to NDVI and EVI2

On the question of the source of the apokamp

The object of this work is the apokamp—a new type of plasma jet, which is formed from a bright offshoot emerging at the bending point of a channel of a high-voltage pulse-periodic discharge under conditions where the electrodes have a capacitive decoupling with the ground. The aim of this work is the identification of distinctive properties of the offshoot in comparison with the apokamp. The differences in the spectra of the offshoot and plasma jet (apokamp) were detected experimentally in air under normal conditions. The results of the previous studies, according to which the apokamp is a wave of ionization, were confirmed. The launch of a helium plasma jet from the offshoot of the pulse-periodic discharge in a mode of the apokamp forming was demonstrated experimentally. It was shown that the offshoot of high-voltage pulsed discharge in the mode with the apokamp is a medium that is strongly heated and conducting electric current

The field strength necessary for the formation of blue jets in the middle atmosphere

The formation of blue jets in air at low pressures is simulated using an apokamp discharge. The field strength is measured in the discharge channel. Assuming the applicability of similarity laws to gas discharges, the field strength in a storm cloud during the formation of blue jets is assessed to be from 6 x 1010 to 1.9 x 109 V/m, which is much higher than the values characteristic of the development of cloud-to-ground lightning discharges. A hypothesis is suggested that excess magnitudes of characteristic fields is among features of high-voltage pulsed discharge within a cloud, which results in the formation of blue jets at altitudes of about 12-18 k

Laboratory demonstration in the air red and blue mini-jets

The properties of apokamps (miniature plasma jets) with length up to 60 cm at low pressures are studied. It is shown that several properties of apokamps resembles that ones for large-scale transient luminous events (sprites, starters and blue jets) observed in the Earth upper atmosphere. The images and spectra of apokamps in these conditions are presented. For the first time red downward directed mini jets in air at pressures of fraction of Torr were obtained

Cooling techniques for excilamps driven by dielectric barrier discharge

Our study describes effective techniques to transfer heat away from UV emitters based on dielectric barrier discharge excilamps. It presents findings from an investigation into the efficiency of excilamp radiation when cooled by air, inert gas, and liquid refrigerants. The devised cooling techniques were used to create radiation sources with a UV power density of up to 117 mW∕cm2

СОВРЕМЕННОЕ СОСТОЯНИЕ И ПРЕОБРАЗОВАТЕЛЬНЫЕ ПРОЦЕССЫ В СЕЛЬСКОМ ХОЗЯЙСТВЕ БЕЛАРУСИ

The paper considers the main destructive and stabilizing factors, and estimation of production and economic conditions applied to functioning of branches of agriculture is given. The author reveals the effectiveness of reforming of organizational and legal structure concerning business entities in rural areas, the main directions of innovation and investment activities affecting the efficiency of agricultural organizations and agricultural enterprises are identified as well.В статье рассмотрены основные деструктивные и стабилизационные факторы, дана оценка производственно-экономическим условиям функционирования отраслей сельского хозяйства, показана результативность реформ организационно-правового устройства субъектов хозяйствования на селе, определены основные направления инновационной и инвестиционной деятельности, влияющие на эффективность производства сельскохозяйственных организаций и предприятий АПК

Емпіричне оцінювання безпеки економічного розвитку підприємств будівництва: Європейський аспект

The article analyzes the dynamics of the development of the main indicators of the construction industry in the countries of the European Union. The main causes of the unbalanced growth of the construction business in Ukraine and European countries are established. The author suggests a methodical approach to assessing the threat of self-destruction of construction enterprises in the process of unbalanced development. The proposed approach is based on a comprehensive assessment of the proportionality of growth in construction indicators using an integral indicator and the main provisions of the theory of fuzzy sets. A fuzzy term “safe development” and its membership function are formulated. The configuration and parameters of the membership function are determined on the basis of the results of cluster analysis of the balance of economic development of the construction industry in the countries of the European Union. With the help of the developed methodological approach, the probability of the threat of unbalanced development for the domestic construction industry was assessed.Проаналізовано динаміку розвитку основних показників будівництва у країнах Європейського Союзу. Визначено основні причини розбалансованості зростання будівельного бізнесу в Україні та країнах Європи. Запропоновано авторський методичний підхід до оцінювання загрози саморуйнування будівельного бізнесу в процесі незбалансованого розвитку, в основу якого покладено комплексне оцінювання пропорційності зростання показників будівництва за допомогою інтегрального індикатора. Сформульовано нечіткий терм «безпечний розвиток» та його функцію належності, обґрунтованої за результатами кластерного аналізу збалансованості розвитку будівельної галузі у країнах Євросоюзу. За допомогою розробленого методичного підходу проведено оцінювання імовірності реалізації загрози незбалансованого розвитку для вітчизняної будівельної галузі

Interoperability Issues of Earth Observation Grid Systems

In this paper we review issues of Earth observation Grid systems integration. We describe different approaches for the solution of problems of certificate trust, data transfer, geospatial data access, task management, etc. As an example, we describe InterGrid system for environmental and natural disaster monitoring that integrates several regional and national Grid systems.В работе рассматриваются вопросы интеграции Grid-систем исследования Земли. Приведены возможные подходы к решению задач, возникающих при интеграции: обмен сертификатами, обмен данными, доступ к геопространственным данным, выполнение заданий и т.д. В качестве примера использования описанных решений описана InterGrid-система, которая объединяет несколько региональных и национальных Grid-систем и направлена на решения задач экологического мониторинга и мониторинга природных чрезвычайных ситуаций