Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Chavdar Roumenin"'
Autor:
Virjinia Doltchinkova, Siya Lozanova, Blaga Rukova, Rumin Nikolov, Elitsa Ivanova, Chavdar Roumenin
Publikováno v:
Frontiers in Chemistry, Vol 11 (2023)
Introduction: The current understanding of the biological impacts of a static magnetic field (SMF) is restricted to the direct interactions of the magnetic field with biological membranes. The electrokinetic (zeta) potential is an electrochemical pro
Externí odkaz:
https://doaj.org/article/d8b09fc1a050408489f5bd0bcf15f54c
Publikováno v:
Proceedings, Vol 2, Iss 13, p 710 (2018)
A novel coupling of a pair of identical two-contact (2C) magnetoresistors transformed into an in-plane sensitive Hall device is presented. The ohmic contacts are cross-linked, also adding a load resistor bridge, providing for constant current mode of
Externí odkaz:
https://doaj.org/article/cbcab6061e6c45b592123e1e561241b0
Publikováno v:
Proceedings, Vol 2, Iss 13, p 713 (2018)
A novel in-plane sensitive Hall arrangement consisting of two identical n-Si three-contact (3C) elements and realized in a common technological process, is presented. In the solution, the minimization of the offset and its temperature drift is achiev
Externí odkaz:
https://doaj.org/article/7909d3f9cbdc480c9d27addaeef8db00
Publikováno v:
Proceedings, Vol 2, Iss 13, p 711 (2018)
A new 2D (two-dimensional) in-plane sensitive Hall-effect sensor comprising two identical n-Si Greek-crosses is presented. Each of the crosses contains one central square contact and, symmetrically to each of their four sides, an outer contact is ava
Externí odkaz:
https://doaj.org/article/2bf65bdd892a41f88b2c9a860c6d47f8
Publikováno v:
Proceedings, Vol 1, Iss 4, p 329 (2017)
A novel Hall magnetometer using dynamic offset cancellation principle is presented. It consists from a single triangular silicon plate with three contacts and interface electronics. The proposed dynamic offset-cancelling measurement cycle includes th
Externí odkaz:
https://doaj.org/article/688a577dc73644289aff86eeea25e27b
Publikováno v:
Proceedings of the Bulgarian Academy of Sciences. 76:273-281
Based on the experimentally discovered regularity – emission of micro-sized particles during monoaxial deformation of non-homogeneous structures, such as rocks and concretes, a sensor technology to identify their pre-destruction processes is propos
Publikováno v:
Proceedings of the Bulgarian Academy of Sciences. 75:1813-1821
Regularity has been observed in the generation of microparticles during uniaxial deformation of rocks and building concretes with the following formula: a previously unknown phenomenon in solid non-regular structures has been experimentally establish
Publikováno v:
Proceedings of the Bulgarian Academy of Sciences. 75:1334-1342
A novel method and a device measuring the mobility of majority carriers in semiconductors using the Hall current is proposed and experimentally tested. The geometry of the mobility-determining structures is similar to the topology of the so-called Co
Publikováno v:
2022 XXXII International Scientific Symposium Metrology and Metrology Assurance (MMA).
Publikováno v:
2021 XXX International Scientific Conference Electronics (ET).
An original multidimensional magnetic-field sensor using subsequent measurement method based on a bipolar drift-aided magnetotransistor is presented. The device contains silicon substrate, emitter, two base contacts and four collectors. Using a new e