Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Krastin Yordanov"'
Publikováno v:
Annual Journal of Technical University of Varna, Vol 1, Iss 1, Pp 105-111 (2017)
The efficient use of resources on the basis of the development of scientific and technical progress requires widespread implementation of new technologies for processing of metals, such as plas-ma, cathode-ray, detonation and other methods that allow
Externí odkaz:
https://doaj.org/article/8ac9f917613f4de6a1552111042187d5
Autor:
Krastin, Yordanov, Hadzhidimov, Iliya
Publikováno v:
TEM Journal. 8(4):1264-1271
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=812487
Publikováno v:
Civil and Environmental Engineering, Vol 16, Iss 2, Pp 388-395 (2020)
This research aims at comparing the thermal performance of walls made from traditional and alternative building materials. The experimental study involves five types of walls were studied based on perforated ceramic bricks and a mixture of clay, sand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d00c388e4d6e0372e170b84337049796
https://doi.org/10.2478/cee-2020-0039
https://doi.org/10.2478/cee-2020-0039
Publikováno v:
TEM Journal, Vol 9, Iss 2, Pp 419-426 (2020)
The infrared thermography today is widely used modern instrument for analysis of thermal fields in power electronics elements. On the other side, the heat fluxes causing temperature distribution of these elements and modules in working condition can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3569f9a23c7bbbe76cd531732204ff66
https://doi.org/10.18421/tem92-01
https://doi.org/10.18421/tem92-01
Publikováno v:
E3S Web of Conferences, Vol 327, p 02008 (2021)
The article presents the design and manufacture of an electronic measuring system based on an ESP32 microcontroller equipped with LORA E32 wireless data transceivers, a SD card for data recording and a computer with application for photovoltaic panel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c644a425f5fddbcb2c487e373f7788ba
Publikováno v:
2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA).
This paper presents an analysis of energy resources in Bulgaria and Romania. The aim of this study is to justify the need for energy mix in the energy system of Romania and Bulgaria. There is a shift from the traditional energy pillars, such as coal-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fb222436b054ee17c8ead754068355e
https://doi.org/10.1109/siela49118.2020.9167132
https://doi.org/10.1109/siela49118.2020.9167132
Publikováno v:
Scopus-Elsevier
In this work, a computer simulation model has been used for heat transfer process study in steel plates that were Manual Metal Arc Welded. The heat transfer process evolution was simulated using SolidWorks Thermal Analysis. The base material used for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a6840fa933e67b90f7a63557c3c3b1b3
https://www.scientificbulletin.upb.ro/rev_docs_arhiva/fulla6f_279381.pdf
https://www.scientificbulletin.upb.ro/rev_docs_arhiva/fulla6f_279381.pdf
Publikováno v:
E3S Web of Conferences, Vol 207, p 01004 (2020)
Thermal comfort in buildings is usually achieved through sustainable materials obtained from natural sources, which justifies their use for developing building mixtures. Many natural materials were used as early as in ancient times to build homes tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d89db6185f72e8f073d945d867372060
https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/67/e3sconf_fpepm2020_01004.pdf
https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/67/e3sconf_fpepm2020_01004.pdf
Publikováno v:
E3S Web of Conferences, Vol 207, p 01006 (2020)
In the paper, an experimental study for calculation the heat quantity through a flat wall by electronic system has been presented. The aim is temperature measurement on outer and inner walls of a room for 20 days at 1-minute interval of measurement.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0521fa3d842204ea681a13ed8ac609fd
https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/67/e3sconf_fpepm2020_01006.pdf
https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/67/e3sconf_fpepm2020_01006.pdf
Autor:
Daniela Spasova, Krastin Yordanov
Publikováno v:
Annual Journal of Technical University of Varna, Vol 2, Iss 1 (2018)
This present paper is relevant to the establishment on mathematical model of the heat interaction between the metal matrix (liquid phase- Cu) and a reinforcement (solid- Fe) phase, during the production of the Metal Matrix Composites (MMCs) by the me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdced4a78ff5b169500e45aa3568f419
https://doi.org/10.29114/ajtuv.vol2.iss1.61
https://doi.org/10.29114/ajtuv.vol2.iss1.61