Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Rosen Ivanov"'
Autor:
Rosen Ivanov
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 5, Iss 5, Pp 36-39 (2024)
ABSTRACT. Proper management of overburden materials can reduce the environmental impact and increase the benefits of mining activities. It is important to consider the specific composition of the overburden and local needs when selecting the most app
Externí odkaz:
https://doaj.org/article/61e8b941c2de49f1aaa23602250fe365
Autor:
Rosen Ivanov, Victoria Velkova
Publikováno v:
Digital Presentation and Preservation of Cultural and Scientific Heritage, Vol 14 (2024)
This paper presents a solution using Bluetooth Low Energy (BLE) beacon technology to enhance visitor experiences in museums, both indoors and outdoors. Organizations using the developed mobile service can associate text, images, video, and audio cont
Externí odkaz:
https://doaj.org/article/8246046ab2d041c0a4c0a5f48b61dc13
Publikováno v:
Journal of Ecological Engineering, Vol 24, Iss 7, Pp 175-186 (2023)
The possibilities of simultaneous removal of sulfates and heavy metals (Cu, Ni, Zn) from acid mine drainage have been investigated in two-section bioelectrochemical system (BES). The used BES is based on the microbial sulfate reduction (MSR) process
Externí odkaz:
https://doaj.org/article/c3631d17f9fd457d979be596b17f921d
Publikováno v:
Transport Problems, Vol 18, Iss 2, Pp 63-73 (2023)
Noise from cars is one of the main sources of harmful pollution. In the presented paper, an octave frequency band analysis is conducted according to standard methods of external and internal noise measurement. Experiments at different speeds, with th
Externí odkaz:
https://doaj.org/article/447ca59b3b0545fea9d5b97b67ba6bf4
Autor:
Rosen Ivanov, Victoria Velkova
Publikováno v:
Digital Presentation and Preservation of Cultural and Scientific Heritage, Vol 13 (2023)
This paper presents the architecture of a Web app designed to deliver personalized content to museum visitors both indoors and outdoors. The app uses a tangible type of interface to obtain information about the museum's exhibits. For this purpose, ea
Externí odkaz:
https://doaj.org/article/61bce3f663324a0b88d67a819212d191
Autor:
Rosen IVANOV, Donka IVANOVA
Publikováno v:
Transport Problems, Vol 17, Iss 3, Pp 51-59 (2022)
An experimental investigation of mechanical idle running losses in an agriculture tractor transmission was used to collect a wide range of data. The influence of the engine rotation speed, the number of switched-on gears, and the oil level in the tra
Externí odkaz:
https://doaj.org/article/d23953e485e04ce9a7440a8d7554c882
Autor:
Rosen Ivanov
Publikováno v:
ISPRS International Journal of Geo-Information, Vol 12, Iss 10, p 434 (2023)
In recent years, there has been an increasing demand for personalized experiences in various domains, including the cultural and educational sectors. Museums, as custodians of art, history, and scientific knowledge, are seeking innovative ways to eng
Externí odkaz:
https://doaj.org/article/5b3546014f354596b66f7aa940b918ca
Autor:
Rosen Ivanov, Victoria Velkova
Publikováno v:
Digital Presentation and Preservation of Cultural and Scientific Heritage, Vol 12 (2022)
This paper presents the architecture and implementation of a service that delivers personalized content to open-air museum visitors. The service uses push notifications to deliver this content. Notifications can be delivered to all visitors or person
Externí odkaz:
https://doaj.org/article/578929c314ec47b4a64a6ccceaba93b5
Autor:
Svetlana Bratkova, Zlatka Alexieva, Anatoliy Angelov, Katerina Nikolova, Petia Genova, Rosen Ivanov, Maria Gerginova, Nadejda Peneva
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 1, Iss 1, Pp 21-26 (2020)
ABSTRACT. The influence of hydraulic retention time (HRT) on the rate of sulphate–reduction and electricity generation of microbial fuel cell fed with ethanol was studied. The experiments were performed in the laboratory installation, consisting of
Externí odkaz:
https://doaj.org/article/eab99e3746b843bbb7c7f98f29855d5d
Autor:
Katerina Nikolova, Svetlana Bratkova, Anatoliy Angelov, Petia Genova, Rosen Ivanov, Ani Stefanova
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 1, Iss 1, Pp 74-78 (2020)
ABSTRACT. Mine wastewaters are often characterised with high concentrations of sulphates, heavy metals and increased electrical conductivity. It is mandatory for the industry to implement convenient treatment methods in order to reduce these paramete
Externí odkaz:
https://doaj.org/article/de24440fef114a428450142e61e0c40c