Електронний репозитарій Львівського державного університету безпеки життєдіяльності
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ВИКОРИСТАННЯ 3D-МОДЕЛЮВАННЯ ТА ТЕХНОЛОГІЇ UNREAL ENGINE У ПРОФЕСІЙНІЙ ПІДГОТОВЦІ МАЙБУТНІХ РЯТУВАЛЬНИКІВ В УМОВАХ ВІЙНИ
No full textЕкпериментальне визначення та математичне моделювання показників горючості епоксіамінних композицій
No full textFEATURES OF DESIGNING SOFTWARE DISTRIBUTED SYSTEMS ARCHITECTURE
No full textA pressing problem in designing distributed software systems is that they must operate stably under high load conditions when thousands of users want to receive certain resources provided by system services. To ensure high availability and stability of highly loaded software services, they are deployed in managed multiprocessor distributed systems (clusters). These kinds of resources have a high value, so in practice, various cloud platforms (Google Cloud, Amazon, Azure, etc.) are most often used, which provide these resources, charging only for the time of direct use of them. Services must be able to fully utilize the provided resources during data processing, so they must be designed using special architectural solutions. Therefore, the purpose of this research is to theoretically investigate the architectural solution features when designing software services of distributed systems.
Materials and Methods. The paper presents a theoretical research design of features of distributed software systems architecture which is based on the analysis and comparison of facts obtained from scientific sources and the author's practical experience as well.
Results and Discussion. The article shows that Kubernetes is one of the main software solutions designed for deploying software applications in parallel distributed systems. It was established that microservice architecture is the optimal architectural solution for designing software services of distributed systems, given the specifics of deploying software systems under Kubernetes management.
Conclusion. A multithreaded design must be used for effective scaling distributed software system under high load. However, performance improvement occurs only if the parallel algorithm uses parallel rather than concurrent multithreading mode. The concurrent mode of thread operation is advisable to use only in the case of blocking operations when some threads are in a waiting mode. Synchronous architecture has a good performance, but there are limitations associated with blocking threads until the results of client requests are received. The asynchronous model allows for a larger number of requests than the synchronous one but requires a fully asynchronous API when working with external services, and is also more difficult to debug the service and fix errors
ВПЛИВ РОСІЙСЬКО-УКРАЇНСЬКОЇ ВІЙНИ НА ПУБЛІЧНЕ УПРАВЛІННЯ У СФЕРІ ЦИВІЛЬНОГО ЗАХИСТУ
No full textЦивільний захист – є функцією держави, що передбачає гарантування безпеки населення та за
хист територій від впливу надзвичайних ситуацій, а також навколишнього природного середовища та
майна від них. Повномасштабна агресія рф проти України актуалізувала низку питань, пов’язаних з
цивільним захистом. У ситуації збройного конфлікту та війни основну відповідальність за повагу та
захист цивільного населення несуть держави та збройні групи. Це передбачає вжиття всіх можливих
запобіжних заходів, щоб звести до мінімуму вплив на них військових дій. У той же час, міжнародні
організації сприяють забезпеченню цивільного, гуманітарного та іншого захисту цивільного населення
через діалог та взаємодію з державами та озброєними суб’єктами, а також за допомогою гуманітарних
та інших операцій
дисертація на здобуття ступеня доктора філософії з галузі знань 07 «Управління та адміністрування» за спеціальністю 073 «Менеджмент»
No full textDETERMINATION OF THERMAL PHYSICAL CHARACTERISTICS OF THE PANASONIC NCR18650B LITHIUM-ION POWER SUPPLY ELEMENT
Get PDFThe purpose of the work was to determine the thermophysical characteristics of Panasonic NCR18650B (LiNi0.8Co0.15Al0.05O2) batteries under the condition of an external heating source. Obtaining the appropriate thermophysical characteristics of lithium-ion battery (LIB) cells can be confirmed by experimental studies and mathematical calculations. Obtaining relevant results in the future makes it possible to carry out a professional assessment of the heating temperature of such LIB, the conditions of their combustion, and the spread of fire in general. According to the results of experimental studies, namely, under the condition of the action of an external source of high temperature (flame) and uniform heating of the outer walls of the LIB, its inner part is heated to an average temperature of 168 °C for 70 seconds. For comparison, the corresponding tem perature in the middle of the LIB without internal filling (cathode and anode) is reached within 45 seconds. The developed mathematical model based on the differential equation of thermal con ductivity in the cylindrical coordinate system and the use of the Newton-Richmann`s Law of Heat Exchange made it possible to carry out mathematical modelling of the heating process of a LIB. Further comparison of the experimental values with the mathematical model confirmed the cor rectness of the experiment. The obtained mathematical model based on the experimental values made it possible to obtain the corresponding numerical values of the specific heat capacity, mate rial density, thermal conductivity coefficient and heat exchange between the surface and the near-surface layer of the Panasonic NCR18650
ЗАСТОСУВАННЯ МОДЕЛЕЙ МАШИННОГО НАВЧАННЯ ДЛЯ РАННЬОГО ВИЯВЛЕННЯ НАДЗВИЧАЙНИХ СИТУАЦІЙНА ОСНОВІ ПОТОКОВИХ ВЕЛИКИХ ДАНИХ
Get PDFMigrant Social Integration: Key Obstacles and Pathways to Eff ective Adaptation
No full textThe study of the social integration of migrants is of great theoretical and practical importance. Identifying patterns and features of migration allows us to model strategies for successfully adapting migrants. The social and socio-cultural characteristics of the host environment: its stratifi cation and value-normative foundations, the degree of ethnic mosaicism, which characterises the density and frequency of interethnic interactions, mentality and culture, and tolerant readiness to interact with others, are identifi ed as essential factors in adaptation processes. The study aims to characterise the problems and strategies of successful adaptation to migrants’ social integration. The object of the study is the process of integrating migrants into society. The empirical basis of the study is based on the results of the author’s research conducted in the autumn of 202
