Russian Physics Journal最新文献_第5页

Indirect assessment of photometric parameters of LED lighting systems LED照明系统光度参数的间接评估

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03688-0

Y. G. Neshina, F. N. Bulatbayev, D. I. Kayumov, A. T. Zheldikbayeva

{"title":"Indirect assessment of photometric parameters of LED lighting systems","authors":"Y. G. Neshina, F. N. Bulatbayev, D. I. Kayumov, A. T. Zheldikbayeva","doi":"10.1007/s11182-026-03688-0","DOIUrl":"10.1007/s11182-026-03688-0","url":null,"abstract":"<div><p>The paper proposes a method of the indirect measurement of photometric parameters of LED lighting systems. It is based on a physicomathematical model that establishes the correlation between illuminance, electrical power consumption, and energy efficiency ratio of the luminaire. The laboratory test bench is used to verify the model. It comprises LED modules, measuring instruments, and photometric sensors. Dependences are suggested for the luminous flux and illuminance on the electrical operating conditions and LED chip temperature. It is found that an increase in the chip temperature by every 10 °C leads to an illuminance decrease by approximately 4–6%, which matches theoretical calculations. A comparison of the experimental data with the model predictions shows a deviation not over 7%, thereby confirming the adequacy of the proposed method. The latter includes diagnostics of the operating LED installation without the use of the expensive photometric equipment. Recommendations are given for this method to control the luminous flux degradation in LED luminaires and to improve the operational efficiency of lighting systems. The proposed method for indirect measuring luminous flux is tested at OOO “Global Light” and OOO “Light Engineering” (Karaganda, Kazakhstan) during an incoming quality control for manufactured luminaires.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"69 1","pages":"103 - 110"},"PeriodicalIF":0.8,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and characterization of novel BDIT32HO11DOP26DSI crystals for structural profile, displaying profile, phase-matched, piezo-electric, anti-diabetic, and sensory utilities by theory and practice 新型BDIT32HO11DOP26DSI晶体的合成及结构轮廓、显示轮廓、相位匹配、压电、抗糖尿病和感官应用的理论与实践

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03682-6

G. Jeeva Rani Thangam, A. Arulmozhi, R. Hariharasuthan, Emine Berrin Poyraz, Serkan Demir, Serkan Güney, Necmi Dege, K. SenthilKannan

{"title":"Synthesis and characterization of novel BDIT32HO11DOP26DSI crystals for structural profile, displaying profile, phase-matched, piezo-electric, anti-diabetic, and sensory utilities by theory and practice","authors":"G. Jeeva Rani Thangam, A. Arulmozhi, R. Hariharasuthan, Emine Berrin Poyraz, Serkan Demir, Serkan Güney, Necmi Dege, K. SenthilKannan","doi":"10.1007/s11182-026-03682-6","DOIUrl":"10.1007/s11182-026-03682-6","url":null,"abstract":"<div><p>The Transparent nonlinear optical benzo[d]isothiazol-3(2H)-one 1,1-dioxide pyridine‑2,6‑diamine silver 1 ion (BDIT32HO11DOP26DSI) crystal has been grown, and the single crystal XRD has authenticated the data for BDIT32HO11DOP26DSI crystalline material. The grown BDIT32HO11DOP26DSI crystalline sample was monoclinic with <i>P</i>2<sub>1</sub>/<i>n</i> space group by single crystal XRD analysis. The BDIT32HO11DOP26DSI crystal is a negative photoconductivity class of material. The second-order nonlinear optics (NLO) for macro-scaled specimen was 2.05 times that of a KDP crystal and leads to 143.5 mV as phase matched effectiveness for optronic utilities; extension of opto-electronic use was implemented for frequency doubling as the second-order NLO is physics of frequency doubling and the third-order one is 3.14 μ-esu by Z‑scan. In addition, the reddish LED material based outcome of the BDIT32HO11DOP26DSI macro-crystal had the sensor sensitivity by 7% higher than that of the micro-crystal equal to 5% with that of piezo-electric outcome. The micro-specimen had 76.78 μg/mL as anti-diabetic 50% inhibitory concentration (IC-50) for alpha-amylase case.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"69 1","pages":"52 - 58"},"PeriodicalIF":0.8,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural and phase composition parameters of advanced nanomaterials based on zirconium dioxide for dental restoration 基于二氧化锆的口腔修复先进纳米材料的结构和相组成参数

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03655-9

V. V. Promakhov, A. E. Matveev, N. A. Schulz, V. R. Bakhmat, T. Turanov, M. I. Lerner

引用次数: 0

Calculation of the properties of a rectangular waveguide exposed to 8-mm wavelength microwave radiation 矩形波导在8mm波长微波辐射下的特性计算

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03679-1

V. V. Barmin, P. Yu. Chumerin, I. V. Romanchenko

{"title":"Calculation of the properties of a rectangular waveguide exposed to 8-mm wavelength microwave radiation","authors":"V. V. Barmin, P. Yu. Chumerin, I. V. Romanchenko","doi":"10.1007/s11182-026-03679-1","DOIUrl":"10.1007/s11182-026-03679-1","url":null,"abstract":"<div><p>Numerical modelling is performed to determine the optimal location geometry of a GaAs-based photoconductive semiconductor switch in a 7.2×3.4 mm rectangular waveguide with an opening for microwave wave irradiation at a frequency of 37.28 GHz and an E10 mode. The simulation is performed in a CST Microwave Studio with the determination of the scattering parameters and the optimal-geometry EM field distribution. The scattering parameters calculated for locked and shorted photoconductive semiconductor switches (PCSS) make it possible to attenuate the impacting signal by 17.8 dB or 7.8 times and match the reflected signal level within −20 dB. Under these conditions, the principal mode of the impacting signal is transformed, allowing a standing wave to be generated with the PCSS locked and transmitted with low distortion along the waveguide with the PCSS shorted. The geometry calculated in this study would allow solving an important problem of the external field availability for the PCSS transition to a shorted state without any additional external electric field on the PCSS electrodes and to get rid of the microwave signal distortion from the constant component, which needs a further experimental confirmation.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"69 1","pages":"26 - 33"},"PeriodicalIF":0.8,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of the reduced electric field (E/N) and species concentration on the electron transport properties in Cu-Ne plasma mixture 还原电场（E/N）和物质浓度对Cu-Ne等离子体混合物中电子输运性质的影响

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03678-2

M. A. A. Fawzi, A. J. Gatea

{"title":"Effect of the reduced electric field (E/N) and species concentration on the electron transport properties in Cu-Ne plasma mixture","authors":"M. A. A. Fawzi, A. J. Gatea","doi":"10.1007/s11182-026-03678-2","DOIUrl":"10.1007/s11182-026-03678-2","url":null,"abstract":"<div><p>This study explores the influence of the reduced electric field (<i>E</i>/<i>N</i>) and species concentration on electron transport properties in a copper-neon (Cu-Ne) plasma mixture. A numerical model is employed to compute key electron transport parameters, including the total collision frequency, momentum transfer frequency, momentum frequency of electrons and ions, and energy mobility. These parameters are analyzed for copper concentrations from 0.001 to 0.5 mol and reduced electric field values between 1 and ~20 Td. The electron energy distribution function (EEDF) is also calculated for each condition. The results demonstrate that increasing the reduced electric field significantly raises the average electron energy, resulting in notable changes in transport coefficients. Moreover, variations in copper concentration alter collisional dynamics and energy transfer processes, primarily due to the distinct collision cross sections of Cu and Ne atoms. The outcomes of this study provide valuable insights for optimizing plasma conditions in applications such as plasma processing, lighting technologies, and pulsed discharge systems. Additionally, the findings offer a useful reference for future research on multicomponent plasma systems involving both noble gases and metallic species.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"69 1","pages":"14 - 25"},"PeriodicalIF":0.8,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Formation of a bipolar signal by an s-diode with the time switching parameters close to the limit s二极管在时间开关参数接近极限的情况下形成双极信号

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03677-3

V. V. Barmin, I. V. Romanchenko

引用次数: 0

Laser-induced plasma characterization and mechanism of formation of Cu-Sn nanoparticles in liquid environment 激光诱导等离子体表征及Cu-Sn纳米颗粒在液体环境中的形成机制

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03690-6

Sarah Faris Khaleel, Kadhim A. Aadim

{"title":"Laser-induced plasma characterization and mechanism of formation of Cu-Sn nanoparticles in liquid environment","authors":"Sarah Faris Khaleel, Kadhim A. Aadim","doi":"10.1007/s11182-026-03690-6","DOIUrl":"10.1007/s11182-026-03690-6","url":null,"abstract":"<div><p>Cu-Sn-derived nanoparticles are successfully synthesized using pulsed laser ablation in liquid (PLAL) with an Nd:YAG laser operating at 1064 nm at three pulse energies: 500, 700, and 900 mJ. A Cu-Sn target (80 wt.% copper, 20 wt.% tin) was ablated in deionized water to produce stable colloidal suspensions. The synthesized nanoparticles are characterized using UV-Vis spectroscopy, optical emission spectroscopy (OES), X‑ray diffraction (XRD), and field-emission scanning electron microscopy (FE-SEM). The results show that increasing the laser power significantly affects the particle size, shape, crystallinity, and structure. The UV-Vis spectra showed apparent energy-dependent shifts in the absorption and optical bandgaps. An OES analysis indicates an increase in electron temperature and density, confirming a higher plasma density under high laser irradiation. An XRD analysis reveals the formation of CuO, SnO, and Cu<sub>13.7</sub>Sn phases with enhanced crystallinity, and the FE-SEM images reveal smaller particles. The nanoparticles exhibit potent antibacterial activity against two bacterial strains (<i>Pseudomonas aeruginosa</i> and <i>Staphylococcus aureus</i>), with the highest inhibition observed at 900 mJ. These results demonstrate that laser-induced plasma offers an efficient and controllable approach for fabricating bioactive nanomaterials with tunable structural and functional properties.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"69 1","pages":"125 - 134"},"PeriodicalIF":0.8,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Silicon and iron composite as nanomaterial for photothermal treatment of cancer 硅铁复合纳米材料光热治疗癌症

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-04-14 DOI: 10.1007/s11182-026-03684-4

M. V. Shestakov

引用次数: 0

Current-channel radiation dynamics of a pulsed-periodic atmospheric pressure discharge in flowing argon 流动氩气中脉冲周期大气压放电的电流通道辐射动力学

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-01-22 DOI: 10.1007/s11182-026-03666-6

D. V. Beloplotov, K. P. Savkin, D. A. Sorokin

{"title":"Current-channel radiation dynamics of a pulsed-periodic atmospheric pressure discharge in flowing argon","authors":"D. V. Beloplotov, K. P. Savkin, D. A. Sorokin","doi":"10.1007/s11182-026-03666-6","DOIUrl":"10.1007/s11182-026-03666-6","url":null,"abstract":"<div><p>The temporal characteristics of optical radiation from plasma in the current channel of a glow discharge at atmospheric pressure are presented. The study was made in a pulsed discharge with a current ranging from 40 to 100 mA, a discharge voltage of 250–300 V, pulse durations of 10–15 μs, and frequencies of 50–100 kHz. The discharge operated in a 6 mm interelectrode gap, utilizing an argon flow at a rate of 1000 sccm. At a threshold current of 40–60 mA, the initially uniform spatial distribution of plasma radiation intensity transformed into a regular structured pattern, characterized by brightly luminous regions separated by darker gaps, an appearance similar to <i>bead</i> lightning. Time-resolved imaging techniques revealed the following trends. A spatially-periodic glow structure emerged in the discharge column during the current decay stage and persisted throughout the time intervals between discharge current pulses at near-zero voltage. Conversely, when the current reached its peak value, this structure transformed into a uniform distribution. This article explores the influence of phenomena, particularly those associated with the development of gas-dynamic instability which arises at the interface between cold and heated gas flows as a result of convective cooling of the discharge gap, on the dynamics of plasma glow.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"68 12","pages":"2166 - 2179"},"PeriodicalIF":0.8,"publicationDate":"2026-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148695237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PET- and Al-based secondary raw materials for the SHS production from Ti-Al-C-N system 用Ti-Al-C-N体系生产SHS的PET和al基二次原料

IF 0.8 4区物理与天体物理

Russian Physics Journal Pub Date : 2026-01-22 DOI: 10.1007/s11182-026-03652-y

A. E. Matveev, N. S. Pichugin, V. V. Promakhov, V. R. Bakhmat

引用次数: 0