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technospheramag
technospheramag
ТЕХНОСФЕРА_РИЦ
Business People
N. L. Istomina
Three Pillars of Additive Manufacturing: Lasers, Optics, Materials DOI: 10.22184/1993-7296.FRos.2025.19.4.256.260
Industrial companies using laser SLM printers in their technological processes have shifted
their interest to large-sized machines. Catching this trend, the company “Laser Systems” has developed and released the industrial installation M-450-L for printing large-sized metal parts with a construction field of 500×500 mm with the possibility of further scaling.
Three Pillars of Additive Manufacturing: Lasers, Optics, Materials DOI: 10.22184/1993-7296.FRos.2025.19.4.256.260
Industrial companies using laser SLM printers in their technological processes have shifted
their interest to large-sized machines. Catching this trend, the company “Laser Systems” has developed and released the industrial installation M-450-L for printing large-sized metal parts with a construction field of 500×500 mm with the possibility of further scaling.
General Issues of the Industry. Developments. Documents
I. K. Epaneshnikova, D. A. Eremina, A. A. Otarov
Problems Of Attracting External Financing For High-Tech Innovative Startups In Russia DOI: 10.22184/1993-7296.FRos.2025.19.4.270.278
This paper analyzes the factors that lead to the barriers to external fund raising for the design
works of high-tech startups. Such factors include the support of dominant role of the state that acts not only as a regulator, but also as the main source of financing. The article considers the reasons for decreased activity of the entities engaged in funding of the high-tech startups and innovative projects. The recommendations have been developed aimed at stimulating external funding of high-tech projects that is necessary for innovative development of the Russian economy.
Problems Of Attracting External Financing For High-Tech Innovative Startups In Russia DOI: 10.22184/1993-7296.FRos.2025.19.4.270.278
This paper analyzes the factors that lead to the barriers to external fund raising for the design
works of high-tech startups. Such factors include the support of dominant role of the state that acts not only as a regulator, but also as the main source of financing. The article considers the reasons for decreased activity of the entities engaged in funding of the high-tech startups and innovative projects. The recommendations have been developed aimed at stimulating external funding of high-tech projects that is necessary for innovative development of the Russian economy.
Technologies and Technology Equipment
V. G. Protsenko, D. Anufriev, M. V. Kuznetsov, A. A. Popovich
Laser Cladding of Nozzle Blades Made of Cobalt Alloy MAR-M 509 Using the Laser Gas-Powder Cladding Method DOI: 10.22184/1993-7296.FRos.2025.19.4.282.290
The articles indicates the parameters of laser gas-powder cladding mode to restore the
MAN TURBO engine nozzle blades made of
cobalt alloy MAR-M 509 using the domestic
powder EP648. The process measures to prevent
crack formation during the laser cladding are
described. Restoration of a series of nozzle
blades was performed using a robotized station
for laser direct deposition.
Laser Cladding of Nozzle Blades Made of Cobalt Alloy MAR-M 509 Using the Laser Gas-Powder Cladding Method DOI: 10.22184/1993-7296.FRos.2025.19.4.282.290
The articles indicates the parameters of laser gas-powder cladding mode to restore the
MAN TURBO engine nozzle blades made of
cobalt alloy MAR-M 509 using the domestic
powder EP648. The process measures to prevent
crack formation during the laser cladding are
described. Restoration of a series of nozzle
blades was performed using a robotized station
for laser direct deposition.
A. I. Arzhanov, A. S. Shelkovnikov, V. V. Shulga, K. E. Aleksashin, A. O. Kolesnikov, A. N. Shatokhin, E. N. Ragozin, A. V. Naumov
Stamp Electron-Beam Nanolithography as a Tool for Fabricating Aperiodic Diffraction Gratings for X-ray Optics DOI: 10.22184/1993-7296.FRos.2025.19.4.292.295
The results of fabrication and characterization of metallized aperiodic diffraction gratings (with a line density ranging from 150 to 570 lines per mm) using modernized scanning stamp
electron-beam nanolithography machine ZBA-21 with a 200 nm process technological standard and a working area of up to 150× 150 mm are presented. The characterization was performed
using scanning atomic force microscopy.
Stamp Electron-Beam Nanolithography as a Tool for Fabricating Aperiodic Diffraction Gratings for X-ray Optics DOI: 10.22184/1993-7296.FRos.2025.19.4.292.295
The results of fabrication and characterization of metallized aperiodic diffraction gratings (with a line density ranging from 150 to 570 lines per mm) using modernized scanning stamp
electron-beam nanolithography machine ZBA-21 with a 200 nm process technological standard and a working area of up to 150× 150 mm are presented. The characterization was performed
using scanning atomic force microscopy.
Рhotovoltaics
E. A. Ionova, K. A. Ovchinnikov, D. A. Malevskiy
Evaluation Criterion of Full-Spectrum Modules for Solar Power Engineering DOI: 10.22184/1993-7296.FRos.2025.19.4.324.332
The use of highly efficient (efficiency > 40%) full-spectrum solar cells in the ground-based
solar power engineering is associated with the sophisticated design of the solar power plant
that can lead to the increased capital costs not covered by the boosted energy yield. It is
proposed to use the relative LCOE (Levelised Cost of Energy) as a criterion for evaluating
the competitiveness of a power plant with full-spectrum solar cells at its initial stage of development. It is shown that if the power plant is located at the geographic point with the coordinates (51N, 108E), the power plant competitiveness with full-spectrum solar cells
shall be ensured already when the capital costs per 1 m2 of the module aperture exceed the
capital costs per 1 m2 by no more than 1.9 times in comparison with a silicon module.
Evaluation Criterion of Full-Spectrum Modules for Solar Power Engineering DOI: 10.22184/1993-7296.FRos.2025.19.4.324.332
The use of highly efficient (efficiency > 40%) full-spectrum solar cells in the ground-based
solar power engineering is associated with the sophisticated design of the solar power plant
that can lead to the increased capital costs not covered by the boosted energy yield. It is
proposed to use the relative LCOE (Levelised Cost of Energy) as a criterion for evaluating
the competitiveness of a power plant with full-spectrum solar cells at its initial stage of development. It is shown that if the power plant is located at the geographic point with the coordinates (51N, 108E), the power plant competitiveness with full-spectrum solar cells
shall be ensured already when the capital costs per 1 m2 of the module aperture exceed the
capital costs per 1 m2 by no more than 1.9 times in comparison with a silicon module.
Conferences, exhibition & seminars
D. V. Levashova
Barriers to the Development of the Additive Technology Industry, the Search for Mechanisms to Eliminate Them. Review DOI: 10.22184/1993-7296.FRos.2025.19.4.262.268
As part of the business program accompanying the specialized exhibition ”Metalloobrabotka‑2025”, various meetings of specialists were held, where issues of equipment, devices and the possibilities of introducing new technological methods of metalworking into production were discussed. The conference “Barriers to the development of the additive technology industry, the search for mechanisms to eliminate them” attracted our attention with its provocative title.
Barriers to the Development of the Additive Technology Industry, the Search for Mechanisms to Eliminate Them. Review DOI: 10.22184/1993-7296.FRos.2025.19.4.262.268
As part of the business program accompanying the specialized exhibition ”Metalloobrabotka‑2025”, various meetings of specialists were held, where issues of equipment, devices and the possibilities of introducing new technological methods of metalworking into production were discussed. The conference “Barriers to the development of the additive technology industry, the search for mechanisms to eliminate them” attracted our attention with its provocative title.
Metatronics
A. R. Gainutdinov
The Influence of the Dielectric Particle’s Porosity on the Position of the Mie Resonances DOI: 10.22184/1993-7296.FRos.2025.19.4.296.303
The dielectric particles with a high refractive index demonstrate Mie resonances in the
infrared region of spectrum, where the typical absorption bands of many hydrocarbons are
observed. The article provides a numerical determination of the dependence of the
refractive index of a dielectric particle located in a target substance matrix on the particle
porosity value. It is shown that an increased particle porosity leads to a linear decrease in
the particle refractive index and to a linear shift of the Mie resonance to the region of short
wavelengths. An estimate is given for the shift in the spectral range of the Mie resonance
manifestation when the particle porosity value is changed by a few percent.
The Influence of the Dielectric Particle’s Porosity on the Position of the Mie Resonances DOI: 10.22184/1993-7296.FRos.2025.19.4.296.303
The dielectric particles with a high refractive index demonstrate Mie resonances in the
infrared region of spectrum, where the typical absorption bands of many hydrocarbons are
observed. The article provides a numerical determination of the dependence of the
refractive index of a dielectric particle located in a target substance matrix on the particle
porosity value. It is shown that an increased particle porosity leads to a linear decrease in
the particle refractive index and to a linear shift of the Mie resonance to the region of short
wavelengths. An estimate is given for the shift in the spectral range of the Mie resonance
manifestation when the particle porosity value is changed by a few percent.
Biophotonics
E. A. Kovaleva, L. V. Begunovich, M. M. Korshunov
Time-dependent DFT-based Study of Bacteriochlorophyll a Optical Properties within the B800 part of Rhodoblastus Acidophilus Light-Harvesting Complex DOI: 10.22184/1993-7296.FRos.2025.19.4.304.311
Time-dependent density functional theorybased approaches, TD-DFT and TD-DFTB, are
used to study the optical absorption of B800 part of light-harvesting complex 2 (LH2) of
Rhodoblastus acidophilus. Calculated spectra for both single molecule and the optimized
structure of B800 complex containing nine of such molecules are in qualitative agreement
with experimental data. The absence of any sizable effects originating from the interaction
between adjacent molecules are proved. Thus, optical features of B800 LH2 part are
not connected to the structural organization of pigments. The importance of the timedependent procedure for the correct description of BChl a absorption spectrum is demonstrated.
Time-dependent DFT-based Study of Bacteriochlorophyll a Optical Properties within the B800 part of Rhodoblastus Acidophilus Light-Harvesting Complex DOI: 10.22184/1993-7296.FRos.2025.19.4.304.311
Time-dependent density functional theorybased approaches, TD-DFT and TD-DFTB, are
used to study the optical absorption of B800 part of light-harvesting complex 2 (LH2) of
Rhodoblastus acidophilus. Calculated spectra for both single molecule and the optimized
structure of B800 complex containing nine of such molecules are in qualitative agreement
with experimental data. The absence of any sizable effects originating from the interaction
between adjacent molecules are proved. Thus, optical features of B800 LH2 part are
not connected to the structural organization of pigments. The importance of the timedependent procedure for the correct description of BChl a absorption spectrum is demonstrated.
Optical measurements
P. A. Zashchepka, V. A. Zaitsava, R. V. Fiodartsau
Absolute Error Estimation of the RACE Atmospheric Correction Module Based on Space Images From the Sentinel‑2 Satellites DOI: 10.22184/1993-7296.FRos.2025.19.4.312.323
The article discusses two atmospheric correction modules: RACE (A Robust Atmospheric Correction Procedure) and Sen2Cor of the Earth observation satellites “Sentinel‑2” (ESA) (image processing level: L2A) and their quantitative comparison. The RACE module processed 22 Sentinel‑2 scenes with the L1C processing level, various shooting conditions and a wide variety of objects. The average absolute error for all scenes in the derived albedo ranges was estimated for each of the 22 scenes for the B2, B3, B4 and B8 Sentinel‑2 spectral channels. As a result of the RACE absolute error estimation for the spectral channels considered, it was shown that the RACE module was comparable in the albedo determination accuracy at the Earth’s level to the Sen2Cor module.
Absolute Error Estimation of the RACE Atmospheric Correction Module Based on Space Images From the Sentinel‑2 Satellites DOI: 10.22184/1993-7296.FRos.2025.19.4.312.323
The article discusses two atmospheric correction modules: RACE (A Robust Atmospheric Correction Procedure) and Sen2Cor of the Earth observation satellites “Sentinel‑2” (ESA) (image processing level: L2A) and their quantitative comparison. The RACE module processed 22 Sentinel‑2 scenes with the L1C processing level, various shooting conditions and a wide variety of objects. The average absolute error for all scenes in the derived albedo ranges was estimated for each of the 22 scenes for the B2, B3, B4 and B8 Sentinel‑2 spectral channels. As a result of the RACE absolute error estimation for the spectral channels considered, it was shown that the RACE module was comparable in the albedo determination accuracy at the Earth’s level to the Sen2Cor module.