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Artykuły w czasopismach na temat „Irradiation Modes”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Tikhomirov, Alexander A., Maxim S. Molokeev, and Vladimir V. Velichko. "Photo-biological Effectiveness of PAR for Radish Plant Communities Irradiated Using an LED Source with an Adjustable Spectrum." Light & Engineering, no. 02-2024 (April 2024): 70–77. http://dx.doi.org/10.33383/2023-063.

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The aim of the current study was to find the most effective spectral modes of irradiation of short-season plants (for example, radish) using a fluorescent LED irradiator with a variable spectrum. The research methodology was based on the species-specific response of plants to the spectral composition of light. Photo-biological experiments were carried out to find effective spectral composition of PAR for cultivating radish communities under stable and variable irradiation modes of electrical lighting. It was shown that under stable irradiation modes, the highest productivity of economically us

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Gerasimovich, L. S., I. P. Sheyko, and A. N. Kosko. "DEVELOPMENT OF MODE PARAMETERS OF IR IRRADIATION OF WEANERS ACCORDING TO ANALYSIS OF ANIMAL BEHAVIOUR USING VIDEO SURVEILLANCE SYSTEM." Proceedings of the National Academy of Sciences of Belarus. Agrarian Series 56, no. 3 (2018): 335–45. http://dx.doi.org/10.29235/1817-7204-2018-56-3-335-345.

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The research relevance is determined by the need to reduce the energy intensity of intensive livestock production. The latter is possible on the basis of innovative methods and technical means of intelligent management of complex biotechnical systems with identification of animal behaviour and control using video surveillance systems. The paper presents the results of experimental researches of the energy efficiency of an automated infrared irradiation system for weaners with irradiation modes set according to analysis of video surveillance of animal behaviour. A sign for the location of anima

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Gradoboev, Alexander, Orlova KN, Sednev VV, and Zhamaldinov FF. "The resistance of leds to the effects of gamma radiation in various operating modes." Trends in Computer Science and Information Technology 7, no. 3 (2022): 107–9. http://dx.doi.org/10.17352/tcsit.000060.

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The effect of active and passive power modes on the resistance of the LEDs (LEDs) made of multilayer AlGaAs heterostructures to gamma-quantum irradiation was studied. Three characteristic stages of emission power reduction during irradiation are distinguished for the studied LEDs irrespective of the power supply mode. When irradiating LEDs in the active power supply mode, two differently directed processes of changes in the emission power are observed. The assumption is made that the first process is caused by a decrease in the LED emission power due to the injection of appropriate radiation d

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4

Dolgikh, Pavel P. "Rationale for the Application of the Technological Scheme of Irradiation with Separation of Energy Flows in the Lighting Systems of Industrial Greenhouses." Engineering Technologies and Systems 32, no. 4 (2022): 600–612. http://dx.doi.org/10.15507/2658-4123.032.202204.600-612.

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Introduction. Ensuring the required parameters and characteristics of electromagnetic radiation of lighting irradiation facilities for greenhouses is an important task to improve the efficiency of energy use and the characteristics of crop production. The aim of the work is to determine the effective operation mode of technological irradiation scheme with separation of energy flows in lighting systems of industrial greenhouses. Materials and Methods. In the developed model of the irradiation technological scheme, constructive decisions make it possible to divide the energy flows into component

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5

Pospelova, I. G. "Study of the operation of an IR irradiator to disinfect the soil mixture placed in a thin layer on a conveyor belt." Agricultural Engineering, no. 2 (2025): 84–91. https://doi.org/10.26897/2687-1149-2025-2-84-91.

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It is a common practice to treatsoil against pests and pathogens of agricultural cropsto ensure its disinfection using alternative methods, which include electromagnetic radiation of variousspectrums: ultraviolet (UV), infrared (IR), microwave (microwave), and high frequency (HF). The authors have developed an IR irradiator to disinfectsoil mixtures placed in a thin layer on a conveyor belt. In order to optimize soil mixture disinfection with IR irradiation, the task wasset to obtain regression equations of the irradiator operation modes. The authorsstudied different modes of the IR irradiatio

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6

Anderson, Blake C., Keith E. Holbert, and Herbert Bowler. "Design, Construction, and Modeling of a252Cf Neutron Irradiator." Science and Technology of Nuclear Installations 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/9012747.

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Neutron production methods are an integral part of research and analysis for an array of applications. This paper examines methods of neutron production, and the advantages of constructing a radioisotopic neutron irradiator assembly using252Cf. Characteristic neutron behavior and cost-benefit comparative analysis between alternative modes of neutron production are also examined. The irradiator is described from initial conception to the finished design. MCNP modeling shows a total neutron flux of 3 × 105 n/(cm2·s) in the irradiation chamber for a 25 μg source. Measurements of the gamma-ray and

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7

Noble, J. A., C. Martin, H. J. Fraser, P. Roubin, and S. Coussan. "IR Selective Irradiations of Amorphous Solid Water Dangling Modes: Irradiation vs Annealing Effects." Journal of Physical Chemistry C 118, no. 35 (2014): 20488–95. http://dx.doi.org/10.1021/jp506943k.

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8

Martynova, V. V., S. V. Akulinichev, and I. A. Yakovlev. "Analysis of Cell Death and Proliferative Activity of Cell Cultures under Proton Irradiation in Flash Mode." Vestnik Moskovskogo Universiteta, Seriya 3: Fizika, Astronomiya 80, no. 2, 2025 (2024): 76–82. https://doi.org/10.55959/msu0579-9392.80.2520204.

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Thestudy of biological effects of accelerated protons with ultra-high dose rate in and outside the Bragg peak on tumor and normal cell lines is necessary for understanding the consequences of this effect and choosing optimal doses and modes for further use in tumor radiotherapy. In this work, human colon adenocarcinoma cells (HT-29) and normal mesenchymal stem cells (ADSC) of human adipose tissue — fibroblasts were irradiated. Irradiation was carried out using a high-current linear proton accelerator of the INR RAS, which allows varying the energy in the range of 70–230 MeV. The dose was deliv

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9

Dolgikh, Pavel P. "Development of environmentally sustainable solutions to provide greenhouse production with alternative energy." E3S Web of Conferences 390 (2023): 06004. http://dx.doi.org/10.1051/e3sconf/202339006004.

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The paper presents scientific and technical solutions to improve the efficiency of greenhouse irradiators used in growing plants in the light culture of industrial greenhouses. The author's technology is described, which makes it possible to regulate the energy flows of the irradiation system during the growing process. The results are given that determine the rational temperature range of the air flow 32÷38°С, created by a greenhouse irradiator, for the needs of heating an industrial greenhouse. It has been established that a decrease in the lamp temperature in the voltage range on the greenh

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10

Bogdanov, A. A., An A. Bogdanov, V. V. Klimenko, V. S. Burdakov, N. A. Verlov, and V. M. Moiseyenko. "Thermal Effect of IR Radiation at 1273 nm during Direct Photogeneration of Singlet Oxygen for Solid Tumors Therapy." Practical oncology 24, no. 3 (2023): 284–90. http://dx.doi.org/10.31917/2403284.

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Singlet oxygen is an electronically excited state of normal triplet oxygen that has cytotoxic effects. The generation of singlet oxygen as a result of photodynamic therapy is used for the treatment of solid tumors. Methods of singlet oxygen direct photogeneration in tissues using infrared lasers can become an effective alternative to photodynamic therapy. The use of pulsed laser irradiation at 1273 nm with high peak power density is a promising direction. Such modes minimize thermal effects and allow for high peak rates of singlet oxygen generation. In this study, a physical-mathematical model

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11

Meloian, S. G., A. A. Beliakova, A. E. Berkovich, et al. "Modeling of rabbit femoral artery occlusion by high-intensity focused ultrasound." Regional blood circulation and microcirculation 23, no. 2 (2024): 67–73. http://dx.doi.org/10.24884/1682-6655-2024-23-2-67-73.

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One of the effective methods of artery and vein occlusion used in experimental studies and in clinical practice for certain diseases is local exposure of vessels to high-intensity focused ultrasound (HIFU). The wide use of this method in our country is limited by the lack of appropriate domestic equipment. At the Peter the Great St. Petersburg Polytechnic University, in the Laboratory of Ultrasound Technologies of the Center for Advanced Research, a stand for HIFU effects on various biological objects has been developed. There is no experience in using this device in angiology yet. The purpose

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12

Leprince, J. G., G. Lamblin, J. Devaux, et al. "Irradiation Modes’ Impact on Radical Entrapment in Photoactive Resins." Journal of Dental Research 89, no. 12 (2010): 1494–98. http://dx.doi.org/10.1177/0022034510384624.

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Rangasami, C. "Vibrational modes of AgIn3Te5 and effect of laser irradiation." Vibrational Spectroscopy 94 (January 2018): 66–73. http://dx.doi.org/10.1016/j.vibspec.2017.08.010.

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14

Bae, Dong Su, Sang Ll Lee, Seung Hoon Nahm, J. W. Choi, and H. Takahashi. "Effect of He-Injection on Irradiation Damage of High Mn-Cr Steel." Materials Science Forum 475-479 (January 2005): 1425–28. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.1425.

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The high Mn-Cr austenitic steel for structure material of nuclear and/or fusion reactors from the point of view of the reduced radio-activation has been irradiated by using three irradiation modes of electron-beam irradiation, electron-beam irradiation after He-injection and electron/He+-ion dual-beam irradiation in 1250kV high voltage electron microscope (HVEM) connected with an ion accelerators to study the effect of He-injection on irradiation damage. Irradiation-induced segregation analyses were carried out by an energy dispersive X-ray analyzer (EDX) in a 200kV FE-TEM with beam diameter o

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15

Guo, Hongyu, Yijing Liu, Yang Yang, et al. "A shape-shifting composite hydrogel sheet with spatially patterned plasmonic nanoparticles." Journal of Materials Chemistry B 7, no. 10 (2019): 1679–83. http://dx.doi.org/10.1039/c8tb01959b.

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A simple and reliable approach was developed to fabricate thermo-responsive composite hydrogel sheets with spatially patterned regions of plasmonic gold nanoparticles. The same hydrogel exhibited different modes of shape deformation under near-infrared laser irradiation depending on the irradiation direction.

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16

Gradoboev, A. V., K. N. Orlova, V. V. Sednev, and F. F. Zhamaldinov. "Influence of the power supply mode of leds on the resistance to exposure to gamma quants." Perspektivnye Materialy 7 (2022): 5–13. http://dx.doi.org/10.30791/1028-978x-2022-7-5-13.

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The paper presents results of a study of the influence of active and passive power modes on the resistance to gamma-quantum irradiation of the LED manufactured on the basis of AlGaAs multilayer heterostructures. Three characteristic stages of radiation power reduction are distinguished for the studied LEDs irrespective of irradiation supply mode. In this case, the second stage is described by a higher damage factor and the third stage is distinguished by the appearance of catastrophic failures. Two differently directed processes of radiation power variation are observed during the irradiation

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17

Vatankhan, M., A. I. Lypska, and Ya I. Serkiz. "Peroxidation of blood plasma lipids after various regimes of external irradiation of rats by 60Co gamma-rays." Nuclear Physics and Atomic Energy 10, no. 4 (2009): 403–8. https://doi.org/10.15407/jnpae2009.04.403.

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Peroxidation products of lipids in blood plasma of laboratory rats are studied after one-time, fractional and long-term external irradiation of the rats by 60Co gamma-rays. It was found that different modes of a total external irradiation of rats lead to prominent features of dynamics and dose dependences of radio gene changes of the content of peroxidation products of lipids in blood plasma. It was shown that fractional irradiation is less effective for an organism, whereas long-term irradiation causes essentially big radiation induced changes than one-time action of radiation.

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18

Miura, Yoko, Keiji Inagaki, Alessa Hutfilz, et al. "Temperature Increase and Damage Extent at Retinal Pigment Epithelium Compared between Continuous Wave and Micropulse Laser Application." Life 12, no. 9 (2022): 1313. http://dx.doi.org/10.3390/life12091313.

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Continuous wave (CW) and microsecond pulse (MP) laser irradiations were compared regarding cell damage and laser-induced temperature rise at retinal pigment epithelium (RPE). The RPE of porcine RPE-choroid-sclera explants was irradiated with a 577 nm laser in CW or MP mode (5% or 15% duty cycle (DC)) for 20 ms or 200 ms at an average laser power of 20–90 mW. Cell viability was investigated with calcein-AM staining. Optoacoustic (OA) technique was employed for temperature measurement during irradiation. For 200 ms irradiation, the dead cell area (DCA) increased linearly (≈1600 µm2/mW) up to the

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19

Takeda, Takashi, Shunsuke Yamamoto, Masaya Mitsuishi, and Tomoyuki Akutagawa. "Alkylamide-substituted tetraphenylethylene: three modes of fluorescence based on a hydrogen-bonded excimer." Organic & Biomolecular Chemistry 14, no. 38 (2016): 8922–26. http://dx.doi.org/10.1039/c6ob01110a.

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Mukan, Zh T., T. A. Seredavina, N. S. Sushkova, I. V. Danko, and N. V. Glushchenko. "STUDY OF DOSIMETRY POSSIBILITIES USING ELECTRON PARAMAGNETIC RESONANCE ON ALANINE FOR ILU-10 ACCELERATOR INP RK." NNC RK Bulletin, no. 1 (March 30, 2022): 36–42. http://dx.doi.org/10.52676/1729-7885-2022-1-36-42.

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Experimental studying possibilities of the electron paramagnetic resonance (EPR) method application for the dose control using alanine deteectors in the process of technological irradiations with brake radiation at the accelerator ILU-10 INP RK has been carried out. The EPR signal stability and sensitivity of original alanine detectors have been studied, serviceability in standard modes was shown in the range of small doses of brake irradiation (0,005–1 kGy); for dose estimation the calibration on gamma-irrdiation was used. The obtained data confirmed the promise of alanine EPR dosimetry at th

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21

SINGH, DILIP K., PARAMESWAR K. IYER, and P. K. GIRI. "DEFECT EVOLUTION AND STRUCTURAL IMPROVEMENT IN LOW ENERGY ION IRRADIATED CARBON NANOTUBES: MICROSCOPIC AND SPECTROSCOPIC STUDIES." International Journal of Nanoscience 10, no. 01n02 (2011): 49–53. http://dx.doi.org/10.1142/s0219581x11007661.

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The capability of graphitic networks to reorganize their structures under irradiation of energetic particles provides the tool for nano-engineering of carbon nanotubes (CNTs). We have studied the effect of 30 keV N + ion irradiation with three different fluences 1012, 1013, and 1014 ions/cm2 on the structural and spectroscopic properties of single-walled carbon nanotubes (SWNTs) and multiwalled carbon nanotubes (MWNTs). Irradiation-induced structural defects and coalescence of the nanotubes are studied using high-resolution transmission electron microscopy (HRTEM). Upon irradiation, some of th

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Leonard, J. B., and S. P. Shepardson. "A comparison of heating modes in rapid fixation techniques for electron microscopy." Journal of Histochemistry & Cytochemistry 42, no. 3 (1994): 383–91. http://dx.doi.org/10.1177/42.3.8308256.

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Recent studies have established that microwave irradiation during aldehyde fixation of electron microscopy specimens can reduce fixation times substantially. Similar reductions in duration of histochemical and light microscopy procedures have been reported. Both thermal and non-thermal effects of microwaves have been proposed to explain these dramatic decreases in processing time. Possible thermal effects include increases in fixative diffusion and reaction rates and increased formation of glutaraldehyde monomers. Proposed non-thermal effects include preferential orientation of fixative molecu

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Pierroz, Vanessa, Riccardo Rubbiani, Christian Gentili, et al. "Dual mode of cell death upon the photo-irradiation of a RuIIpolypyridyl complex in interphase or mitosis." Chemical Science 7, no. 9 (2016): 6115–24. http://dx.doi.org/10.1039/c6sc00387g.

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Sammer, Matthias, Aikaterini Rousseti, Stefanie Girst, Judith Reindl, and Günther Dollinger. "Longitudinally Heterogeneous Tumor Dose Optimizes Proton Broadbeam, Interlaced Minibeam, and FLASH Therapy." Cancers 14, no. 20 (2022): 5162. http://dx.doi.org/10.3390/cancers14205162.

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The prerequisite of any radiation therapy modality (X-ray, electron, proton, and heavy ion) is meant to meet at least a minimum prescribed dose at any location in the tumor for the best tumor control. In addition, there is also an upper dose limit within the tumor according to the International Commission on Radiation Units (ICRU) recommendations in order to spare healthy tissue as well as possible. However, healthy tissue may profit from the lower side effects when waving this upper dose limit and allowing a larger heterogeneous dose deposition in the tumor, but maintaining the prescribed min

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Myshonkov, Alexander B., Olga E. Zheleznikova, Sergey V. Prytkov, and Denis A. Terekhin. "Testbed for Studying the Efficiency of Plants Photosynthetic Irradiation Based on Measuring Carbon Dioxide Concentration in the Air." Light & Engineering, no. 03-2022 (June 2022): 101–6. http://dx.doi.org/10.33383/2022-025.

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The work is devoted to the description of a testbed that allows studying the efficiency of photosynthetic irradiation of plants by measuring the level of carbon dioxide concentration in the air, which in turn determines the intensity of photosynthetic processes in plants. This method makes it possible to significantly increase the speed of comparative research of the effect of irradiation modes on crop yields. The developed testbed is based on the ESP8266 microcontroller with sensors for measuring carbon dioxide concentration, temperature, air humidity, and a microcontroller implementing the c

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Zhang, H., M. Ward, C. Weiner, et al. "Failure Modes and Effects Analysis Applied to Total Body Irradiation." International Journal of Radiation Oncology*Biology*Physics 120, no. 2 (2024): e603. http://dx.doi.org/10.1016/j.ijrobp.2024.07.1327.

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Coenen, Toon, Jorik van de Groep, and Albert Polman. "Resonant Modes of Single Silicon Nanocavities Excited by Electron Irradiation." ACS Nano 7, no. 2 (2013): 1689–98. http://dx.doi.org/10.1021/nn3056862.

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Glukhov, S. I., and E. A. Kuznetsova. "Molecular Mechanisms of FLASH Effect in Radiobiology." Biofizika 69, no. 4 (2024): 868–86. http://dx.doi.org/10.31857/s0006302924040183.

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The use of ultra-high dose-rate ionizing radiation, termed FLASH irradiation (≥40 Gy/s), contributes to healthy tissue sparing while maintaining tumor control compared to conventional dose rate irradiation. This review summarizes current knowledge dedicated to studies of tumor and normal cell lines, animals including tumor-bearing ones irradiated in conventional and FLASH dose rate irradiation modes. As a comparison, data on FLASH irradiation with photons, electrons, protons, helium and carbon ions are also presented. The biophysical, molecular biological and immunological aspects of FLASH eff

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Chakraverty, Ananta Prasad, Subhrajit Beura, Upendra Kumar Mohanty, Subash Chandra Mishra, and Bibhuti Bhusan Biswal. "Gamma-Irradiation of E-Glass/Epoxy Composite: A Study of its Mechanical and Thermal Sustainability." Materials Science Forum 978 (February 2020): 296–303. http://dx.doi.org/10.4028/www.scientific.net/msf.978.296.

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Glass fibre reinforced epoxy (GRE) composites, used as mechanical support and thermal insulators for superconducting magnets of fusion reactors, have been exposed to gamma irradiations at both higher and lower order ranges of doses. Hand layed E-glass fibre/epoxy composite samples, exposed to gamma-irradiations of cumulative doses of both low strength (10, 20, 30, 40, 50 and 60 kGy) and high strength (0.5, 2.5, 6.5, 8.5 and 10.5 MGy) reveal a huge lowering of the ILSS (inter laminar shear strength) for its exposure to low strength dose irradiation. However, improved ILSS values are recorded fo

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Akιn, C., K. Heng, J. M. Mendonça, R. Deitrick, and L. Gkouvelis. "Global flow regimes of hot Jupiters." Astronomy & Astrophysics 699 (July 2025): A74. https://doi.org/10.1051/0004-6361/202453597.

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Context. The atmospheric dynamics of hot and ultrahot Jupiters are influenced by the stellar irradiation they receive, which shapes their atmospheric circulation and the underlying wave structures. Aims. We aim to investigate how variations in radiative and dynamical timescales influence global flow regimes, atmospheric circulation efficiency, and the interplay of wave structures across a curated sample of hot Jupiters. In particular, we explore a previously predicted transition in the global flow regime, where enhanced stellar irradiation suppresses the smaller-scale wave and eddy features th

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Smirnov, Alexandr A., Natalya A. Semenova, Alexey S. Dorokhov, et al. "Influence of Pulsed, Scanning and Constant (16- and 24-h) Modes of LED Irradiation on the Physiological, Biochemical and Morphometric Parameters of Lettuce Plants (Lactuca sativa L.) while Cultivated in Vertical Farms." Agriculture 12, no. 12 (2022): 1988. http://dx.doi.org/10.3390/agriculture12121988.

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In city farming, when growing green crops, a significant part of the production cost is the cost of electricity for lighting. The physiology, biochemistry, morphology and productivity of plants can be affected by changing irradiation modes and these changes reduce electricity costs. However, the results of studies in the literature are contradictory. In this work, we investigated the effect of impulse (frequency 1000 Hz and duty cycle 67%), scanning (the principle of running lights) and constant 16 h and 24 h modes of operation of white light LED irradiators on the physiological, biochemical a

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Ponkratov, Yu V., I. L. Tazhibayeva, Zh A. Zaurbekova, et al. "THE METHODOLOGY OF THE EXPERIMENTS ON TRITIUM GENERATION AND RELEASE FROM THE Li15.7Pb LEAD LITHIUM EUTECTIC UNDER REACTOR IRRADIATION." NNC RK Bulletin, no. 3 (September 30, 2018): 122–28. http://dx.doi.org/10.52676/1729-7885-2018-3-122-128.

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In this paper, the methodology of the experiments on tritium generation and release from the Li15.7Pb lead-lithium eutectic under neutron irradiation is presented. Using the MCNP software, the neutron-physical calculations were performed. As a result of calculations, the power of energy release from the sample and from the design elements of ampoule device at the level of 1 MW thermal power are determined. Using the ANSYS software packages, thermophysical calculations for different temperature modes of eutectic at 1–6 MW stationary reactor power levels has been carried out. Based on the calcul

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Westholt, Rainer, Paul Kestler, Olaf Sicken, and Wilfried Westheide. "Influence of sublethal long-term UV irradiation on body mass, reproduction and behaviour of north European Actinia equina." Journal of the Marine Biological Association of the United Kingdom 79, no. 3 (1999): 415–24. http://dx.doi.org/10.1017/s0025315498000538.

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Two strains of 6–8-y old Actinia equina (Anthozoa: Actiniaria) asexually derived from two individuals collected on the coast of Brittany were artificially UV irradiated in long-term experiments in the laboratory. After the animals had been allowed to adjust to the test aquaria for 15 months, a programme of UV irradiation and multiparameter analysis continued for 24 months. Ultraviolet irradiated sea anemones obtained in addition a quasi-solar UV irradiation at intensities representing the daily and annual cycles. Of the three modes of UV irradiation tested (1X, 2X and 4X), the one with the low

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Khaydarova, Anna, та Mariya Matrunchik. "Structure and Hardness of М2 High Speed Steel Modified by Pulsed Laser Irradiation". Materials Science Forum 942 (січень 2019): 50–58. http://dx.doi.org/10.4028/www.scientific.net/msf.942.50.

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The paper studies the surface structure and microhardness of the coating modified by the pulsed laser irradiation. The coating is obtained by plasma-jet hard-facing of the AISI (American Iron and Steel Institute) М2 high speed steel powder. The modes of the laser irradiation differ in peaking capacity, pulse duration and diameters of the focused laser beam. It is demonstrated that the weld penetration shape factor depends on the laser beam fluence and the pulse duration. In its turn, the weld penetration shape factor effects the quality of obtained irradiation zones.

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Idrissou, Yasmina, Sihem Mouanni, Dahbia Amitouche, Tassadit Mazari, Catherine Marchal-Roch, and Cherifa Rabia. "Cyclohexanone Oxidation over H3PMo12O40 Heteropolyacid via Two Activation Modes Microwave Irradiation and Conventional Method." Bulletin of Chemical Reaction Engineering & Catalysis 14, no. 2 (2019): 427. http://dx.doi.org/10.9767/bcrec.14.2.3054.427-435.

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The adipic acid (AA), important precursor for Nylon production, was synthesized from cyclohexanoneoxidation by two ways, microwaves irradiation and conventional method (under reflux) using H3PMo12O40 heteropolyacid as catalyst in the presence of hydrogen peroxide. In the order to increase the AA yield, several parameters as cyclohexanone/catalyst ratio, H2O2 concentration, solvent nature (H2O, CH3CO2H, and CH3OH, CHCl3 and CH3CN) and cyclohexanol addition to cyclohexanone were examined. For both activation modes, the highest AA yields are of 26-28%. Whereas, with microwaves irradiation, the ti

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Qin, Jing, Jie Ji, Wenzhu Huang, Hong Qin, Mawufemo Modjinou, and Guiqiang Li. "Experimental Study of a Novel Direct-Expansion Variable Frequency Finned Solar/Air-Assisted Heat Pump Water Heater." International Journal of Photoenergy 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/5986463.

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A novel direct expansion variable frequency finned solar/air-assisted heat pump water heater was fabricated and tested in the enthalpy difference lab with a solar simulator. A solar/air source evaporator-collector with an automatic lifting glass cover plate was installed on the system. The system could be operated in three modes, namely, air, solar, and dual modes. The effects of the ambient temperature, solar irradiation, compressor frequency, and operating mode on the performance of this system were studied in this paper. The experimental results show that the ambient temperature, solar irra

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Yamaguchi, Yohei, Daiki Yoshii, Hiroaki Katsuragi, and Koichi Shinkai. "Effect of Laser Irradiation Modes and Photosensitizer Types on Antimicrobial Photodynamic Therapy (aPDT) for Streptococcus sobrinus in the Crown Dentin of Bovine Teeth: An Experimental In Vitro Study." Dentistry Journal 12, no. 3 (2024): 59. http://dx.doi.org/10.3390/dj12030059.

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This study aimed to assess the impact of different laser irradiation modes and photosensitizer types on the bactericidal efficacy of antimicrobial photodynamic therapy (aPDT). Dentin plates were prepared by sectioning the crown dentin of bovine teeth infected with Streptococcus sobrinus (n = 11). Nine aPDTs involving the combination of three 1% solutions of photosensitizers (brilliant blue, BB; acid red, AR; and methylene blue, MB) and three irradiation modes of semiconductor lasers (50 mW for 120 s, 100 mW for 60 s, and 200 mW for 30 s) were performed for each infected dentin plate, and the c

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Slattery, Ciara, Khanh Nguyen, Laura Shields, et al. "Application of Advanced Non-Linear Spectral Decomposition and Regression Methods for Spectroscopic Analysis of Targeted and Non-Targeted Irradiation Effects in an In-Vitro Model." International Journal of Molecular Sciences 23, no. 21 (2022): 12986. http://dx.doi.org/10.3390/ijms232112986.

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Irradiation of the tumour site during treatment for cancer with external-beam ionising radiation results in a complex and dynamic series of effects in both the tumour itself and the normal tissue which surrounds it. The development of a spectral model of the effect of each exposure and interaction mode between these tissues would enable label free assessment of the effect of radiotherapeutic treatment in practice. In this study Fourier-transform Infrared microspectroscopic imaging was employed to analyse an in-vitro model of radiotherapeutic treatment for prostate cancer, in which a normal cel

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Fung, Jeffrey, and Pawel Artymowicz. "A Modal Analysis of the Irradiation Instability." Proceedings of the International Astronomical Union 8, S299 (2013): 340–41. http://dx.doi.org/10.1017/s1743921313008855.

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AbstractThe irradiation instability is a disk instability caused by the radiation pressure cast by a central source onto an optically thick disk. The criterion for this instability depends on a sharp transition from an optically thin inner disk to an optically thick outer disk. The quickly diminishing radiation pressure in this transition region creates a radially compressing effect, which is in many ways similar to the effects of self-gravity. In this modal analysis, we demonstrate that a disk marginally stable to irradiation can develop global modes, with growth rates being of order the dyna

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Saito, Koichiro, and Tetsu Tatsuma. "Photoassisted bottom-up construction of plasmonic nanocity." Nanoscale 9, no. 47 (2017): 18624–28. http://dx.doi.org/10.1039/c7nr07082a.

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Bogatyrev, Yu V., D. A. Aharodnikau, S. B. Lastovsky, et al. "Influence of ionizing radiation on the parameters of p-channel MOS transistors." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 67, no. 4 (2023): 402–8. http://dx.doi.org/10.29235/1561-8358-2022-67-4-402-408.

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The results of experimental studies of the influence of gamma radiation Co60 on the basic parameters of silicon epitaxial-planar p-channel MOSFET transistors under different electrical modes are presented. Transistors were manufactured according to radiation-resistant DMOS technology with design standards of 1.4 μm. As a result of transistor studies, it was established that the values of all basic parameters after the radiation dose D = 106 rads (SiO2) in active electrical irradiation modes remained within the limits of the performance criteria; the parameter, most sensitive to influence of a

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Asakuma, Yusuke, Ryosuke Nakata, and Shunsuke Nishijima. "New approach to achieving smaller bubbles with various microwave irradiation modes." Heat and Mass Transfer 55, no. 12 (2019): 3689–96. http://dx.doi.org/10.1007/s00231-019-02687-x.

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Ibanez-Rosello, B., J. A. Bautista, J. Bonaque, et al. "Failure modes and effects analysis of total skin electron irradiation technique." Clinical and Translational Oncology 20, no. 3 (2017): 330–65. http://dx.doi.org/10.1007/s12094-017-1721-3.

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Kirichenko, Mykhailo, Roman Zaitsev, Kseniia Minakova, Bohdan Vorobiov, Dmytro Shkoda, and Stanislav Leliuk. "Experimental approval of the working modes of the Sunbrick sun simulator." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 2 (7) (December 20, 2023): 34–41. http://dx.doi.org/10.20998/2224-0349.2023.02.13.

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Commissioning and experimental testing of technical capabilities and modes of operation were carried out, and test measurements of light current-voltage characteristics of solar cells were carried out using a modern measuring complex based on the Sunbrick sun simulator. Automated measurement of the light-voltage-current characteristics of solar cells by the compensation method using the Keithley 2400 measuring device was implemented. During the approbation of the measuring complex based on the Sunbrick sun simulator, the possibility of reproducing different modes of simulator operation was tes

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Stefanovsky, S. V., O. I. Stefanovsky, M. I. Kadyko, V. A. Zhachkin, and L. D. Bogomolova. "The Effect of Electron Irradiation on the Structure of Sodium Aluminum-Iron Phosphate Glasses." MRS Advances 1, no. 63-64 (2016): 4227–32. http://dx.doi.org/10.1557/adv.2017.213.

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ABSTRACTGlasses of the series (mol.%) 40 Na2O, (20-x) Al2O3, x Fe2O3, 40 P2O5 were irradiated with 8 MeV electrons to doses equivalent of 0.1, 0.5, and 1.0 MGy and characterized by FTIR spectroscopy and ESR at room temperature. FTIR spectra of all the glasses consist of strong bands due to O-P-O stretching modes in (PO4)3- and (P2O7)4- units at 1000-1200 cm-1, P-O-P stretching modes at 900-950 cm-1 (νas) and 700-750 cm-1 (νs), and bending modes in the PO4 units. The wavenumber range lower 800 cm-1 has some contribution due to stretching modes in MO4 and MO6 (M = Al, Fe) units. Moreover the ban

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Sánchez, Pablo B., Shuntaro Tsubaki, Agílio A. H. Pádua, and Yuji Wada. "Kinetic analysis of microwave-enhanced cellulose dissolution in ionic solvents." Physical Chemistry Chemical Physics 22, no. 3 (2020): 1003–10. http://dx.doi.org/10.1039/c9cp06239d.

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Dissolution kinetics of cellulose in ionic media under conventional and MW heating modes have been compared. Results show that under the same experimental conditions cellulose dissolves faster under MW irradiation.

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Gudkova, V. R., D. A. Gvozdev, G. V. Tsoraev, A. M. Moysenovich, and E. G. Maksimov. "High-power LED-based light source for photosensitizer efficiency assay against cell culture." Vestnik Moskovskogo universiteta. Seria 16. Biologia 79, no. 4, 2024 (2024): 306–14. https://doi.org/10.55959/msu0137-0952-16-79-4-5.

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The aim of the work is to develop a light source for uniform irradiation of cell cultures in plates and for determination of the efficiency of new photosensitizers. The designed scheme of the light source provides uniform irradiation of a 96-well plate with irradiance up to 76 mW/cm2 with temperature values not exceeding 43°C, which allows to use it for activation of photosensitizers. For approbation of the working modes of the unit, zinc phthalocyanine with cholinyl substituents (cholosens) and cell cultures HEK-293 and A431 were used as a model object. Dependences of cell survival on irradia

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Ushakov, I., and Vladimir Fyodorov. "Changes in the Cortex Neurons in Single and Fractional Gamma Radiation." Medical Radiology and radiation safety 66, no. 4 (2021): 18–24. http://dx.doi.org/10.12737/1024-6177-2021-66-4-18-24.

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Purpose: Comparative assessment of radiation-induced changes in neurons of the cerebral cortex after a single and fractionated exposure to ionizing radiation in doses of 0.1 – 1.0 Gy. Material and methods. The study was carried out in compliance with the rules of bioethics on 180 white outbred male rats at the age of 4 months. by the beginning of the experiment, exposed to a single or fractionated exposure to γ-quanta of 60Co in total doses of 0.1; 0.2; 0.5 and 1.0 Gy. Neuromorphological and histochemical methods were used to assess morphometric and tinctorial parameters of nerve cells,

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Gaidys, Mantas, Andrius Žemaitis, Paulius Gečys, and Mindaugas Gedvilas. "Efficient surface polishing using burst and biburst mode ultrafast laser irradiation." RSC Advances 13, no. 6 (2023): 3586–91. http://dx.doi.org/10.1039/d2ra05208c.

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The use of laser irradiation for micromachining is widely applicable and has many benefits. Using correct parameters in burst and biburst modes 0.1 μm surface roughness is achievable with laser polishing.

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Michaelidesová, Anna, Jana Vachelová, Jana Klementová, et al. "In Vitro Comparison of Passive and Active Clinical Proton Beams." International Journal of Molecular Sciences 21, no. 16 (2020): 5650. http://dx.doi.org/10.3390/ijms21165650.

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Nowadays, the irradiation methodology in proton therapy is switching from the use of passively scattered beams to active pencil beams due to the possibility of more conformal dose distributions. The dose rates of active pencil beams are much higher than those of passive beams. The purpose of this study was to investigate whether there is any difference in the biological effectiveness of these passive and active irradiation modes. The beam qualities of double scattering and pencil beam scanning were measured dosimetrically and simulated using the Monte Carlo code. Using the medulloblastoma cell

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