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Energy efficient method of data transmission in a heterogeneous network of the Internet of things for remote areas
P. 1–6.
The paper reviewed and analyzed protocols, technologies for transferring and presenting IoT data, developed a model of a heterogeneous IoT network for hard-to-reach areas, proposed a method to improve the efficiency of data transfer in a heterogeneous IoT network. As a result of the work, a model of using the Internet of Things technology (LPWAN) in hard-to-reach areas was developed, information presentation methods were identified that allow solving the problem of collecting information from remote sensors located in the absence of traditional communication channels and a practical check of the results obtained. The paper uses simulation modeling to study the applicability of different methods of presenting information in the case of transmitting IoT data over low-speed satellite communications channels. The method proposed in the paper allowed the use of the Internet of things technology in remote areas using the SBD satellite short message service. The proposed method allowed reducing the volume and number of SBD messages during data transmission via low-speed satellite communication channels, which made it possible to reduce the cost of communication data transmission by 4.82 times.
In book
Tomsk: Tomsk State University of Control Systems and Radioelectronics (TUSUR), 2019.
Bezzubov S., Kiseleva M., Inorganic Chemistry 2026 Vol. 65 No. 1 P. 13–20
Here, we present a new reaction of common octahedral iridium(III) complexes, [Ir(C^N)2(acac)] (C^N is the cyclometalated ligand, acac is acetylacetonate) with iodine, resulting in the high-yield preparation of unique crystalline polymers, [Ir(C^N)2I3]n, in which the Ir(C^N)2+ fragments are linked by triiodide bridges. The solid polymers show good photo- and thermal stability up to 200 °C in ...
Added: February 17, 2026
Bezzubov S., Tatarin S., Kinzhalov M. et al., Inorganic Chemistry 2026 Vol. 65 No. 3 P. 1793–1800
A series of ESIPT-capable IrIII-(acyclic diaminocarbene species) (ESIPT = Excited-state intramolecular proton transfer) exhibiting strong photoluminescence properties is described. The emission profile is strongly influenced by the nature of the azaheterocyclic fragment in the diaminocarbene ligand: pyrazine-derived species display phosphorescence bands red-shifted by approximately 100 nm compared to their pyridine analogues. This redshift is attributed ...
Added: February 17, 2026
Tatarin S., Zhuravlev I., Minin M. et al., Inorganic Chemistry 2025 Vol. 64 No. 50 P. 24579–24593
To date, the design of stable panchromatic metal complexes simultaneously exhibiting reversible redox behavior remains a challenging endeavor, underscoring the need for new ligand platforms to expand their absorption spectrum. In this study, we report the synthesis and characterization of octahedral bis-cyclometalated iridium(III) complexes with redox-active o-semiquinone/o-iminosemiquinone ancillary ligands, which exhibit exceptional chemical stability and intense ...
Added: February 17, 2026
Gohel V. R., Chetyrkina M. R., Gaev A. et al., Lab on a Chip - Miniaturisation for Chemistry and Biology 2024
Added: February 10, 2026
Dmitrieva V. A., Fedorov F. S., Chetyrkina M. R. et al., Journal of Analysis and Testing 2025 Vol. 9 P. 399–404
Carbon nanotube fibers (CNTFs) fabricated using a novel “wet-pulling” technique were evaluated for electrochemical detection of dopamine (DA). To enhance the sensitivity, we employed an electrochemical oxidation pretreatment and twisting of CNTFs and investigated the performance by cyclic voltammetry (CV) and chronoamperometry (CA). The synergetic effect of twisting and pre-oxidation boosted the sensitivity of modified ...
Added: February 10, 2026
Chetyrkina M. R., Analytica Chimica Acta 2024
Added: February 10, 2026
Nykhrikova E., Kiseleva M., Kalle P. et al., Inorganic Chemistry 2025 Vol. 64 No. 10 P. 5210–5220
Multifunctional compounds with properties that may be triggered by different external stimuli are highly desirable yet challenging in their design and synthesis. Herein, we report a cyclometalated iridium(III) complex based on bulky 1,2-diphenylphenanthroimidazole (C^N) that can easily change its molecular geometry from trigonal-bipyramidal to octahedral or from a monomeric to dimeric state in response to ...
Added: July 2, 2025
Tatarin S., Krasnov L., Nykhrikova E. et al., Journal of Materials Chemistry C 2025 Vol. 13 No. 16 P. 8217–8227
Cyclometalated iridium(III) complexes are excellent emitters for organic light-emitting diodes (OLEDs), but the design of these compounds requires substantial cost and experimental efforts. In this work, we aimed at a simple and fast data-driven prediction of their luminescence properties based on the experimental data. To this end, we created a database (IrLumDB) that contains experimentally ...
Added: July 2, 2025
Tatarin S., Bezzubov S., Inorganic Chemistry 2024 Vol. 63 No. 40 P. 18642–18654
Reactions of iridium trichloride hydrate with bulky 2-(9-anthracenyl)-1-phenyl-benzimidazole (anbi) in the presence of N-donor ligands afforded a number of unique noncyclometalated complexes, while attempts to prepare a common μ-chloro-bridged bis-cyclometalated dimer systematically gave a monocyclometalated complex cis-[Ir(C,N-anbi)(N-anbi)Cl2] instead. The obtained complexes were characterized by 1H NMR, high-resolution mass spectrometry, single-crystal and powder X-ray diffraction, UV–vis ...
Added: February 25, 2025
Cham: Springer, 2024.
This multi-volume set, LNAI 14941 to LNAI 14950, constitutes the refereed proceedings of the European Conference on Machine Learning and Knowledge Discovery in Databases, ECML PKDD 2024, held in Vilnius, Lithuania, in September 2024. ...
Added: November 22, 2024
Experimental Evaluation of Iridium Performance under Varying Weather Conditions and Elevation Angles
Alexander Ilyin, Alexey Matinyan, Alexey Rolich et al., , in: 2024 International Seminar on Electron Devices Design and Production (SED).: IEEE, 2024. P. 1–5.
Added: November 12, 2024
Tatarin S., Smirnov D., Taydakov I. et al., Dalton Transactions 2023 Vol. 52 No. 19 P. 6435–6450
The synthesis, structure, optical and redox properties as well as photovoltaic studies of iridium(III) complexes with cyclometalated 2-arylbenzimidazoles decorated with various polyaromatic fragments and an ancillary aromatic β-diketone are reported. Despite the strong preference of the iridium(III) ion to form bis- or tris-cyclometalated complexes in which the metal participates in five-membered metallacycles, the cyclometalation of ...
Added: September 16, 2024
Tatarin S., Meshcheriakova E., Kozyukhin S. et al., Dalton Transactions 2023 Vol. 52 No. 44 P. 16261–16275
A judicious selection of substituents in cyclometalating 2-arylbenzimidazoles and an ancillary aromatic 1,3-diketone enabled the creation of heteroleptic iridium(III) complexes demonstrating strong light absorption up to 500 nm (ε ≈ 10 000–12 000 M−1 cm−1). The complexes, which were studied by various spectroscopic techniques, single-crystal X-ray diffraction and cyclic voltammetry, displayed tunable absorption maxima depending on the ...
Added: September 16, 2024
Krasnov L., Tatarin S., Daniil S. et al., Scientific data 2024 Vol. 11 Article 870
Iridium(III) complexes nowadays became rising stars in various health-related applications. Thus, there is a necessity to assess cytotoxicity of the synthesized molecules against cancer/normal cell lines. In this report, we present a dataset of 2694 experimental cytotoxicity values of 803 iridium complexes against 127 different cell lines. We specify the experimental conditions and provide representation ...
Added: September 16, 2024
Aleksandr L. Tuv, Ivan D. Demidov, Maksim S. Akatov et al., , in: 2023 Seminar on Networks, Circuits and Systems (NCS).: IEEE, 2023. Ch. 39 P. 178–181.
Added: February 10, 2024
IEEE, 2023.
The IEEE Russia North West Section and Saint Petersburg Electrotechnical University “LETI” (SPbETU “LETI”) are pleased to present the Proceedings of the 2023 Seminar on Networks, Circuits and Systems.
The Seminar will cover a broad area of issues related to computer and communication networks and systems, design and application of electronic components and devices, computer systems engineering and theory. ...
Added: February 10, 2024
Alexander Karnaukhov, Artem Idelevich, Alexey Rolich et al., , in: 2023 XVIII International Symposium Problems of Redundancy in Information and Control Systems (REDUNDANCY).: IEEE, 2023. P. 189–193.
Data transmission over low-speed networks is a subject of global research interest, with a specific focus on overcoming limitations in satellite communication channels. However, little research has addressed the impact of compression on data transmission efficiency in heterogeneous networks using satellite links, especially in the context of the Internet of Remote Things and under poor ...
Added: November 4, 2023
Kozlov A., Mikhail Shapovalov, Alexey Rolich et al., , in: 2023 XVIII International Symposium Problems of Redundancy in Information and Control Systems (REDUNDANCY).: IEEE, 2023. P. 183–188.
Added: November 4, 2023
Dalal A., Bebarta A., Paul A. D. et al., IEEE Sensors Journal 2023 Vol. 23 No. 3 P. 1917–1924
We developed a three-terminal ion-sensitive device (TTISD) as a proton (H+) and arsenic (As3+) sensor for the detection of glucose and As(III) dissolved in water. The TTISD was fabricated using the e-beam evaporation and glancing angle deposition (GLAD) technique. The TiO2 nanowires (NWs) were grown by GLAD on the conducting nafion channel of the TTISD ...
Added: June 26, 2023