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Journal articles on the topic 'Complex photo protective filter'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Mirela, Mitu, Balaci Teodora, Mircia Eleonora, Stănescu Andreea, Nicoară Anca, and Fiţa Ancuţa. "BRAIN Journal - Studies Towards Obtaining a Photoprotective Dermo-cosmetic Complex Product With Natura Extracts of Inorganic and Organic Substances." BRAIN. Broad Research in Artificial Intelligence and Neuroscience 1, SPECIAL ISSUE ON COMPLEXITY IN SCIENCES AND ARTIFICIAL INTELLIGENCE (2010): 46–60. https://doi.org/10.5281/zenodo.1037303.

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ABSTRACT Photoprotective products are considered borderline between cosmetics and pharmaceuticals due to physiological implications they have on skin health considering the environmental changes (radiations, global warming, and the diminished ozone layer) and due to the high demands regarding the balance between the efficacy and the safety of the consumer. The studies we have carried out in this paper consist in the following: selection of the excipients and active ingredients (organic and inorganic filter and/or screen substances, natural products, antioxidants) and the use of a proper techno

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Baldisserotto, Anna, Monica Demurtas, Ilaria Lampronti, et al. "In-Vitro Evaluation of Antioxidant, Antiproliferative and Photo-Protective Activities of Benzimidazolehydrazone Derivatives." Pharmaceuticals 13, no. 4 (2020): 68. http://dx.doi.org/10.3390/ph13040068.

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In the search of multifunctional compounds we designed benzimidazole derivatives endowed with phenolic hydroxy groups and a hydrazone moiety as potential radical-scavenger and the antioxidant agents. The target molecules have been prepared by a simple synthetic procedure and tested for their antioxidant activity by DPPH, FRAP, and ORAC test, for photoprotective activity against UV rays and for antiproliferative activity against Colo-38 melanoma cells. Furthermore, two different dermocosmetic formulations were prepared with the compounds endowed with the best antioxidant and photoprotective pro

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Gabellone, Sofia, Davide Piccinino, Silvia Filippi, et al. "Lignin Nanoparticles Deliver Novel Thymine Biomimetic Photo-Adducts with Antimelanoma Activity." International Journal of Molecular Sciences 23, no. 2 (2022): 915. http://dx.doi.org/10.3390/ijms23020915.

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We report here the synthesis of novel thymine biomimetic photo-adducts bearing an alkane spacer between nucleobases and characterized by antimelanoma activity against two mutated cancer cell lines overexpressing human Topoisomerase 1 (TOP1), namely SKMEL28 and RPMI7951. Among them, Dewar Valence photo-adducts showed a selectivity index higher than the corresponding pyrimidine-(6-4)-pyrimidone and cyclobutane counterpart and were characterized by the highest affinity towards TOP1/DNA complex as evaluated by molecular docking analysis. The antimelanoma activity of novel photo-adducts was retaine

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Zhao, Bingxin, Qingqian Wang, Depeng Li, et al. "Red and Green Quantum Dot Color Filter for Full-Color Micro-LED Arrays." Micromachines 13, no. 4 (2022): 595. http://dx.doi.org/10.3390/mi13040595.

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This work demonstrated color-conversion layers of red and green quantum dots color filter for full-color display arrays. Ligands exchange using (3-glycidyloxypropyl) trimethoxysilane with epoxy functional groups to treat QDs in the liquid phase was performed for photolithography use. The combination of ligands of QDs with photo-initiator played a protective role on QDs. Moreover, the pixel size of green QDCF can be reduced to 50 μm, and a high optical density (OD) of 1.2 is realized.

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Montenegro-Pohlhammer, Nicolás, Rocío Sánchez-de-Armas, Carmen J. Calzado, Merlys Borges-Martínez, and Gloria Cárdenas-Jirón. "A photo-induced spin crossover based molecular switch and spin filter operating at room temperature." Dalton Transactions 50, no. 19 (2021): 6578–87. http://dx.doi.org/10.1039/d1dt00078k.

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In this work, we performed a detailed study, by means of DFT and WFT methods, focused on the deposition of the NiTP–PAPy complex over an Au(111) surface, followed by DFT–NEGF calculations in order to probe the deposited complex transport properties.

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Rogachev, E. A., and A. S. Grezkikh. "STUDY OF THE INFLUENCE OF ELECTRICALLY CONDUCTIVE CARBON BLACK ON THE FUNCTIONAL PROPERTIES OF PHOTOPOLYMERS." DYNAMICS OF SYSTEMS, MECHANISMS AND MACHINES 12, no. 2 (2024): 38–43. https://doi.org/10.25206/2310-9793-2024-12-2-38-43.

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In order to develop new materials for the manufacture of products with antistatic protection by the additive technologies, a method for volumetric modification of photopolymers with highly structured electrically conductive carbon black is proposed. The optimal modes of operation of the 3d photo printer have been determined. A complex of studies of polymer composites under development using scanning electron microscopy, tensile test, and electrical resistance measurements using the four-probe method is presented. The regularities of changes in the physico-mechanical properties of composites ba

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Cheberiachko, Serhii, Olena Yavorska, Volodymyr Hridiaiev, and Andrii Yavorskyi. "Studying the efficiency of a complex individual protective device." E3S Web of Conferences 123 (2019): 01028. http://dx.doi.org/10.1051/e3sconf/201912301028.

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Objective is to study efficiency of a complex protective device including coefficients of penetration and suction of aerosols for dust half-masks of various designs. The half-masks were tested experimentally on specially designed laboratory stands with the help of volunteer-testees; the tests included specifications according to EN 149, EN 352-1, ISO 6942. The studies have demonstrated that a complex protective device for workers is rather efficient providing average coefficient of suction being 1.5% that is almost by 30% less than the values of standard filtering respirators of similar protec

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Ittadwar, Parul A., and Prashant K. Puranik. "NOVEL UMBELLIFERONE PHYTOSOMES: DEVELOPMENT AND OPTIMIZATION USING EXPERIMENTAL DESIGN APPROACH AND EVALUATION OF PHOTO-PROTECTIVE AND ANTIOXIDANT ACTIVITY." International Journal of Pharmacy and Pharmaceutical Sciences 9, no. 1 (2016): 218. http://dx.doi.org/10.22159/ijpps.2017v9i1.14635.

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<p><strong>Objective: </strong>The objective of this study was to develop a novel formulation (Phytosome) of umbelliferone with phospholipid for improved permeability, solubility and hence better pharmacological action.</p><p><strong>Methods: </strong>The phytosomal complex was prepared by using solvent evaporation method and optimised by applying the Box-Behnken design on the basis of complexation rate and partition coefficient. The formation of phytosomes was confirmed by FTIR, DSC, SEM, XRD, HPTLC and NMR by comparing the results of the complex with

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Vergura, Erika Pia, Sara Garcia-Ballestreros, Rosa Francisca Vercher, Lucas Santos-Juanes, Alessandra Bianco Prevot, and Antonio Arques. "Photo-Fenton Degradation of Pentachlorophenol: Competition between Additives and Photolysis." Nanomaterials 9, no. 8 (2019): 1157. http://dx.doi.org/10.3390/nano9081157.

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In the present work, the photo-Fenton degradation of pentachlorophenol (PCP, 1 mg/L) has been studied under simulated and natural solar irradiation; moreover, the effect on the process efficiency of urban waste-derived soluble bio-based substances (SBO), structurally comparable to humic acids, has been investigated. Experiments showed a crucial role of PCP photolysis, present in the solar pilot plant and hindered by the Pyrex® filter present in the solar simulator. Indeed, the SBO screen negatively affects PCP degradation when working under natural solar light, where the photolysis of PCP is r

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Sedlář, Milan, Tomáš Krátký, and Jiří Langer. "Numerical and Experimental Investigation of Three-Dimensional Flow in Combined Protective Canister Filters." Fluids 7, no. 5 (2022): 171. http://dx.doi.org/10.3390/fluids7050171.

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This work deals with the numerical and experimental investigation of flow in the protective filters which combine fibrous pleats and the absorbent cartridge. The flow through the complete 3D geometry of all parts of the filters, including complex geometry of the pleats, is numerically modeled using high-quality computational grids. The sorbent filling, textile dividers as well as the material of filtration pleats are modeled as the porous media with the coefficients of the quadratic Forchheimer equation derived from the experiments in the laboratory located at the SIGMA Research and Developmen

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Belousov, Anton O., Yevgeniy S. Zhechev, Evgeniya B. Chernikova, Alexander V. Nosov, and Talgat R. Gazizov. "UAVs Protection and Countermeasures in a Complex Electromagnetic Environment." Complexity 2022 (July 13, 2022): 1–16. http://dx.doi.org/10.1155/2022/8539326.

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The study considers the problem of ensuring electromagnetic compatibility of EMI-based functional destruction means with other radioelectronic equipment as part of a complex for countering unmanned aerial vehicles. To solve this problem, it is proposed to create a methodology that combines a set of diverse approaches and methods. This study focuses on the use of hollow and thin passive conductors, the use of a magnetodielectric in a reflection symmetric modal filter, the use of reflection symmetric structures for decomposing the train of ultrashort pulses (USP), and the use of a meander line a

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Kuzmina, I. E., and A. I. Fedorova. "Research on Anticorrosive Effects of Larch Bark Extract with Addition of Collagen." Materials Science Forum 992 (May 2020): 718–23. http://dx.doi.org/10.4028/www.scientific.net/msf.992.718.

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The results of the study of the anticorrosive protective effects of the larch bark extract with addition of collagen have been given in this article. It was found that the best way of water extraction of tannins from larch bark is a temperature of 60 ° C during 1 hour, since at high temperatures, partial destruction of tannins occurs, and with an increase in the extraction time of more than an hour, the process of adsorption of these substances by the bark takes place. The corrosion rate was determined by the intensity of the blue colour of the complex compound of iron (II) cations - the trunc

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Siefermann-Harms, Dorothea. "Protective function of the apoprotein of the light-harvesting chlorophyll-a/b—protein complex in pigment photo-oxidation." Journal of Photochemistry and Photobiology B: Biology 4, no. 3 (1990): 283–95. http://dx.doi.org/10.1016/1011-1344(90)85034-t.

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Martí, Miguel, Alberto Tuñón-Molina, Finn Aachmann, et al. "Protective Face Mask Filter Capable of Inactivating SARS-CoV-2, and Methicillin-Resistant Staphylococcus aureus and Staphylococcus epidermidis." Polymers 13, no. 2 (2021): 207. http://dx.doi.org/10.3390/polym13020207.

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Face masks have globally been accepted to be an effective protective tool to prevent bacterial and viral transmission, especially against indoor aerosol transmission. However, commercial face masks contain filters that are made of materials that are not capable of inactivating either SARS-CoV-2 or multidrug-resistant bacteria. Therefore, symptomatic and asymptomatic individuals can infect other people even if they wear them because some viable viral or bacterial loads can escape from the masks. Furthermore, viral or bacterial contact transmission can occur after touching the mask, which consti

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Martí, Miguel, Alberto Tuñón-Molina, Finn Lillelund Aachmann, et al. "Protective Face Mask Filter Capable of Inactivating SARS-CoV-2, and Methicillin-Resistant Staphylococcus aureus and Staphylococcus epidermidis." Polymers 13, no. 2 (2021): 207. http://dx.doi.org/10.3390/polym13020207.

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Face masks have globally been accepted to be an effective protective tool to prevent bacterial and viral transmission, especially against indoor aerosol transmission. However, commercial face masks contain filters that are made of materials that are not capable of inactivating either SARS-CoV-2 or multidrug-resistant bacteria. Therefore, symptomatic and asymptomatic individuals can infect other people even if they wear them because some viable viral or bacterial loads can escape from the masks. Furthermore, viral or bacterial contact transmission can occur after touching the mask, which consti

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Stepanchuk, Serhii, Viktor Strelets, Yevhen Makarov, and Valeriy Strelets. "Comparative analysis of the regulations of humanitarian demining in a radiation-contaminated area." Problems of Emergency Situations, no. 38 (November 2023): 208–23. http://dx.doi.org/10.52363/2524-0226-2023-38-14.

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A comparative analysis of the regularities of the implementation of a control typical operation of humanitarian demining in a radiation-contaminated area was carried out by comparing the time of implementation of the method of jerking an anti-tank mine, which is located at a distance of 50 meters from the shelter, where the sapper is located during the execution of the most dangerous stage, in three different options for the use of a complex of means individual protection by sappers of the State Emergency Service of Ukraine under various conditions of possible radiation exposure: a combination

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Li, Qiong, Donghui Bai, Ling Qin, et al. "Protective Effect of l-Hexaguluroic Acid Hexasodium Salt on UVA-Induced Photo-Aging in HaCaT Cells." International Journal of Molecular Sciences 21, no. 4 (2020): 1201. http://dx.doi.org/10.3390/ijms21041201.

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This study aimed to show the α-l-Hexaguluroic acid hexasodium salt (G6) protective effect against UVA-induced photoaging of human keratinocyte cells. We found that G6 localized to the mitochondria and improved mitochondrial functions. G6 increased respiratory chain complex activities, which led to increased cellular ATP content and NAD+/NADH ratio. Thus, G6 alleviated the oxidative stress state in UVA-irradiated cells. Moreover, G6 can regulate the SIRT1/pGC-1α pathway, which enhanced the cells’ viability and mitochondria energy metabolism. Notably, the anti-photoaging potential of G6 was dire

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Mishra, Yogesh, Akanksha Srivastava, Atul Tiwari, Raju Mondal, Sandhya Yadav, and Subhankar Biswas. "Orange Carotenoid Protein (OCP): A Key Player in Non-photochemical Quenching of Cyanobacteria under Fluctuating Light Condition." INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT 4, no. 02 (2018): 35–40. http://dx.doi.org/10.18811/ijpen.v4i02.4.

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Fluctuating light condition poses major threat to photosynthetic organisms by evoking the production of reactive oxygen species (ROS). To endure the high irradiance level, plants and algae have evolved a photo-protective mechanism, referred as non-photochemical quenching (NPQ). This mechanism concerns with minimizing arrival of the excess excitation energy on reaction centers by dissipating surplus energy in form of harmless heat. Earlier cyanobacteria were not considered to capable of performing NPQ. Alternatively, state transition was supposed to be the major means that cyanobacteria prefera

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19

Wineman, Eitan, Meital Portugal-Cohen, Yoram Soroka, et al. "Photo-damage protective effect of two facial products, containing a unique complex of Dead Sea minerals and Himalayan actives." Journal of Cosmetic Dermatology 11, no. 3 (2012): 183–92. http://dx.doi.org/10.1111/j.1473-2165.2012.00625.x.

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20

Klymiuk, Yurii, and Andrii Bomba. "Computer prediction of technological modes of rapid cone-shaped adsorption filters with automated discharge of part of heat from separation surfaces in filtering mode." Modeling Control and Information Technologies, no. 5 (November 21, 2021): 21–24. http://dx.doi.org/10.31713/mcit.2021.05.

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In the paper a mathematical models of technological modes of filtration with automated removal of part of heat from interface surfaces (water purification from multicomponent impurities), backwashing, chemical regeneration and direct washing of rapid cone-shaped adsorption filters with chemical regeneration of piecewise homogeneous porous loads while maintaining constant velocities of the respective modes is formulated. The proposed models in the complex allow to conduct computer experiments to investigate the change in the concentrations of components of a multicomponent impurity in the filtr

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Hu, Zhengfang, Yang Xiang, Yajun Li, et al. "Research on Identification Technology of Field Pests with Protective Color Characteristics." Applied Sciences 12, no. 8 (2022): 3810. http://dx.doi.org/10.3390/app12083810.

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Accurate identification of field pests has crucial decision-making significance for integrated pest control. Most current research focuses on the identification of pests on the sticky card or the case of great differences between the target and the background. There is little research on field pest identification with protective color characteristics. Aiming at the problem that it is difficult to identify pests with protective color characteristics in the complex field environment, a field pest identification method based on near-infrared imaging technology and YOLOv5 is proposed in this paper

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Antonelli, Raissa, Fernanda Silva Pimenta, Marquele Amorim Tonhela, Ana Luiza de Toledo Fornazari, Ana Claudia Granato, and Geoffroy Roger Pointer Malpass. "Degradation of cytarabine, creatinine, and urea in artificial urine by a photo-assisted sono-electrochemical process." Research, Society and Development 9, no. 8 (2020): e411985425. http://dx.doi.org/10.33448/rsd-v9i8.5425.

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The present work had as its objective, the evaluation of the combination of electrochemical, photochemical and sonrochemical techniques (sono-electrochemical photoassisted) applied to degradation of cytarabine (chemotherapeutic drug) in a simulated urine that continues with creatinine and laboratory research. The paper involved laboratory research with both a qualitative and quantitative approach. A continuous-flow filter-press electrochemical reactor was employed using Dimensionally Stable Anode (DSA® - Ti/Ru0.3Ti0.7O2) as the electrode material. A 23 factorial design was used to optimize the

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Cherif, C., and E. Laourine. "CHARACTERISATION OF BARRIER PROPERTIES OF WOVEN FABRICS FOR SURGICAL PROTECTIVE TEXTILES." AUTEX Research Journal 11, no. 2 (2011): 31–36. http://dx.doi.org/10.1515/aut-2011-110201.

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Abstract The pore morphology of textile filter structures is important for numerous technical applications. It determines the functional properties of surgical textiles, such as the effective barrier function and wearing comfort. Surgical and protective textiles must fulfil both of these contradictory functions. To date, basic research has not been successful, either theoretically or experimentally, in describing the complex correlation between the 3D pore structure of woven textiles and their barrier properties while simultaneously remaining permeable. In an attempt to clarify this issue, hig

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H. Bartel, B. Minnich, I. Margreiter, and A. Lametschwandtner. "Vascular Regression In Gill Filters of Tadpoles of Xenopus Laevis Daudin: A Qualitative and Quantitative Sem Study on Vascular Corrosion Casts." Microscopy and Microanalysis 5, S2 (1999): 1188–89. http://dx.doi.org/10.1017/s1431927600019267.

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During metamorphosis amphibian tadpoles regress gills, tail and other larval structures. Thus gills are a good model to study how a highly complex three-dimensional vascular network regresses and finally disappears. Presently, only the microvascularization of external gills of larvae of Hynobiusdunni(2) and Litoria ewingi(3) is examined. The present study analyzes the spatio-temporal changes which the gill 3D-vascular network undergoes during metamorphosis using SEM of microvascular corrosion castings and a newly developed 3D-morphometry system (4, 5).Vascular casts of gills of tadpoles of the

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Kozior, Tomasz, Al Mamun, Marah Trabelsi, and Lilia Sabantina. "Comparative Analysis of Polymer Composites Produced by FFF and PJM 3D Printing and Electrospinning Technologies for Possible Filter Applications." Coatings 12, no. 1 (2022): 48. http://dx.doi.org/10.3390/coatings12010048.

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Three-dimensional printing technologies are mainly used to build objects with complex shapes and geometry, largely prototypes, and thanks to the possibility of building very thin layers of material with small pores, electrospinning technology allows for the creation of structures with filtration properties, in particular very small particles. The combination of these technologies creates new possibilities for building complex-shape composites that have not been comprehensively tested so far. The article describes the results of research on composites manufactured by combining samples prepared

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Boivin, Michel A., Dongmei Ye, John C. Kennedy, Rana Al-Sadi, Chris Shepela, and Thomas Y. Ma. "Mechanism of glucocorticoid regulation of the intestinal tight junction barrier." American Journal of Physiology-Gastrointestinal and Liver Physiology 292, no. 2 (2007): G590—G598. http://dx.doi.org/10.1152/ajpgi.00252.2006.

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A defective intestinal epithelial tight junction (TJ) barrier has been proposed as an important pathogenic factor contributing to the intestinal inflammation of Crohn's disease. Glucocorticoids are first-line therapeutic agents for the treatment of moderate to severe Crohn's disease. Glucocorticoid treatment has been shown to induce retightening of the intestinal TJ barrier defect in Crohn's disease patients. However, the mechanisms that mediate the glucocorticoid therapeutic action on intestinal TJ barrier function remain unknown. The aim of this study was to elucidate the mechanism of glucoc

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Modorskii, Vladimir, Danila Maksimov, Ivan Cherepanov, Anton Mikryukov, Stanislav Kalulin, and Margarita Seregina. "INFLUENCE OF SOME PARAMETERS OF THE EXPERIMENTAL ANTI-ICING COMPLEX "FILTER" ON THE EFFICIENCY OF PROTECTION OF POWER PLANTS FROM SNOW." Perm National Research Polytechnic University Aerospace Engineering Bulletin, no. 69 (2022): 100–109. http://dx.doi.org/10.15593/2224-9982/2022.69.11.

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Unpredictable growth of ice crust on filters installed in air cleaning devices at the inlet to air supply channels to aircraft drives during operation of gas compressor stations in heavy snowfalls can lead to accidents and downtime. To combat ice growths, an experimental complex "FILTER" was developed. The developed experimental complex makes it possible to conduct interdisciplinary studies of the behavior of snow and ice covers on gas-permeable and deformable surfaces of various types, providing gas-dynamic conditions similar to those that occur near air-cleaning devices. These include precip

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Bomba, Andrii, Yurii Klymyuk, and Ihor Prysіazhnіuk. "COMPUTER PREDICTION OF TECHNOLOGICAL REGIMES OF RAPID CONE-SHAPED ADSORPTION FILTERS WITH CHEMICAL REGENERATION OF HOMOGENEOUS POROUS LOADS." Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska 10, no. 4 (2020): 19–24. http://dx.doi.org/10.35784/iapgos.2107.

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Mathematical models for predicting technological regimes of filtration (water purification from the present impurities), backwashing, chemical regeneration and direct washing of rapid cone-shaped adsorption filters, taking into account the influence of temperature effects on the internal mass transfer kinetics at constant rates of the appropriate regimes, are formulated. Algorithms for numerical-asymptotic approximations of solutions of the corresponding nonlinear singularly perturbed boundary value problems for a model cone-shaped domain bounded by two equipotential surfaces and a flow surfac

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Zidikhanova, A. A., and A. B. Larin. "Water-chemical regime with use of VTIAMIN reagents at TTP with seasonal mode of operation." Vestnik IGEU 2 (April 30, 2024): 5–14. http://dx.doi.org/10.17588/2072-2672.2024.2.005-014.

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The main equipment of the thermal power plant (TPP) includes a E-120-7.0-500GM steam boiler produced by LLC “Belenergomash – BZEM” with a single-stage evaporation circuit. The operating mode of the thermal power plant has seasonal characteristics. During the period of February to the end of August the equipment is stopped as a reserve. Dosing of AMINAT PK-3 does not provide the required pH level in steam and feed water, so the reagent for water-chemical regime and preservation has been substituted with VTIAMIN KR-33. The complex reagent VTIAMIN KR-33 ensures both the maintenance of the require

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Ridzuan, Mohd Baharufin, Zawawi Daud, Zulkifli Ahmad, Nurul Amira Md Nordin, and Zulfairul Zakariah. "Development of Natural Fiber as a Filter Media in Removing Organic Pollutants from Greywater." Defect and Diffusion Forum 382 (January 2018): 302–6. http://dx.doi.org/10.4028/www.scientific.net/ddf.382.302.

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Greywater is a wastewater originating from shower, bathtub, bathroom sink, kitchen sink and laundry. Despite the fact of wastewater in Malaysia may also include a complex mixture of organic matter, suspended solids, bacteria and common household chemicals, when used wisely and in a manner that is protective to public health and the environment, it can helps preserve limited water supply. This study aims the efficiency of adsorption of organic pollutants in greywater by using natural fibers such as Kenaf dust and Chitosan powder to treat the colour of water and the cause of odours from the grey

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Qian, Jiaming, Yu Cao, Kailong Xu, et al. "Robust frame-reduced structured illumination microscopy with accelerated correlation-enabled parameter estimation." Applied Physics Letters 121, no. 15 (2022): 153701. http://dx.doi.org/10.1063/5.0107510.

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Structured illumination microscopy (SIM), with the advantages of full-field imaging and low photo-damage, is one of the most well-established fluorescence super-resolution microscopy techniques that raised great interest in biological sciences. However, conventional SIM techniques generally require at least nine images for image reconstruction, and the quality of super-resolution significantly depends on high-accuracy illumination parameter estimation, which is usually computationally intense and time-consuming. To address these issues, we propose a robust seven-frame SIM reconstruction algori

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WU, Donggui, Guanghai HU, S. ZOLETNIK, et al. "Plasma edge density fluctuation measurements via lithium beam emission spectroscopy on EAST." Plasma Science and Technology 24, no. 5 (2022): 055102. http://dx.doi.org/10.1088/2058-6272/ac4d1e.

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Abstract Accurate and stable measurements of edge density fluctuation with high spatio-temporal resolution have been achieved by the lithium beam emission spectroscopy (Li-BES) diagnostic on experimental and advanced superconducting tokamak (EAST). The new narrower band interference filter exhibits good ability to suppress background emission signal even under strong lithium coating of the tokamak. The raw data measured by channels at different spatial locations in avalanche photo diode camera with high chopping frequency show good consistency. Based on the detected experimental data, detailed

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Kumar, B. Anil, and Mohan Bansal. "Face Mask Detection on Photo and Real-Time Video Images Using Caffe-MobileNetV2 Transfer Learning." Applied Sciences 13, no. 2 (2023): 935. http://dx.doi.org/10.3390/app13020935.

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Face detection systems have generally been used primarily for non-masked faces, which include relevant facial characteristics such as the ears, chin, lips, nose, and eyes. Masks are necessary to cover faces in many situations, such as pandemics, crime scenes, medical settings, high pollution, and laboratories. The COVID-19 epidemic has increased the requirement for people to use protective face masks in public places. Analysis of face detection technology is crucial with blocked faces, which typically have visibility only in the periocular area and above. This paper aims to implement a model o

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Gautam, Ujjal K., Yoshio Bando, Pedro M. F. J. Costa, et al. "Inorganically filled carbon nanotubes: Synthesis and properties." Pure and Applied Chemistry 82, no. 11 (2010): 2097–109. http://dx.doi.org/10.1351/pac-con-09-12-08.

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Since the discovery of carbon nanotubes (CNTs) in 1991, widespread research has been carried out to understand their useful physical and electronic properties and also to explore their use in devices. CNTs have many unique properties such as tunable electrical resistance, mechanical robustness, and high thermal conductivity, which when combined with other inorganic materials such as phosphors or superconductors could lead to hetero-structures with diverse functionality. We have been able to obtain mass production of such materials wherein CNTs form core-shell heterostructures with metals, semi

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Litvinenko, Z. N., and L. M. Kondratyeva. "Formation of Actinobacteria biofilms during groundwater treatment." Limnology and Freshwater Biology, no. 4 (2024): 986–91. http://dx.doi.org/10.31951/2658-3518-2024-a-4-986.

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The paper presents the results of a study of the reasons for the formation of biofilms during the purification of groundwater with use of natural sorbents. Analysis of the microbial complexes structure at different stages of water treatment showed that their numbers increased after filtration through a load with granular activated carbon. In some cases, it remained high in storage tanks containing purified water. In fact, at all stages of water treatment, representatives of Actinobacteria were found in the community structure, which formed biofilms in the technical system, as well as after 14

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Kolotov, A. S., A. N. Kopysov, and V. V. Khvorenkov. "The Development of an Input Protective Circuit of the Radio Frequency (RF) Path of the High Frequency (HF) Band Receiver." Vestnik IzhGTU imeni M.T. Kalashnikova 27, no. 4 (2024): 120–29. https://doi.org/10.22213/2413-1172-2024-4-120-129.

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The article presents the results of the input protection circuitdevelopment, the main purpose of which is to limit the signals of high-power entering the HF receiverRF path on the antenna input. The input protection circuit protects the sensitive components and elements of the receiver from overload and failure.The need to ensure the reliability and safety of complex communication systems and complexes is only increasing every year.The relevance of input circuitprotection may occur at small separation of the receiver and the source of interference, under the conditions of electronic warfare. T

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Shen, Jianshuang, Xueqin Li, Xiangtao Zhu, et al. "Molecular and Photosynthetic Performance in the Yellow Leaf Mutant of Torreya grandis According to Transcriptome Sequencing, Chlorophyll a Fluorescence, and Modulated 820 nm Reflection." Cells 11, no. 3 (2022): 431. http://dx.doi.org/10.3390/cells11030431.

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To study the photosynthetic energy mechanism and electron transfer in yellow leaves, transcriptomics combined with physiological approaches was used to explore the mechanism of the yellow leaf mutant Torreya grandis ‘Merrillii’. The results showed that chlorophyll content, the maximal photochemical efficiency of PSII (Fv/Fm), and the parameters related to the OJ phase of fluorescence (φEo, φRo) were all decreased significantly in mutant-type T. grandis leaves. The efficiency needed for an electron to be transferred from the reduced carriers between the two photosystems to the end acceptors of

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Correia, Patrícia, Paula Araújo, Carolina Ribeiro, et al. "Anthocyanin-Related Pigments: Natural Allies for Skin Health Maintenance and Protection." Antioxidants 10, no. 7 (2021): 1038. http://dx.doi.org/10.3390/antiox10071038.

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Human skin is commonly described as a particularly dynamic and complex environment, with a physiological balance continuously orchestrated by numerous internal and external factors. Intrinsic aging, exposure to UV radiation and skin pathogens are some of the key players that account for dermatological alterations and ailments. In this regard, this study intended to explore the potential skin-health beneficial properties of a group of molecules belonging to the anthocyanin family: cyanidin- and malvidin-3-O-glucosides and some of their structurally related pigments, resulting in a library of co

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de Rubeis, Tullio, Annamaria Ciccozzi, Giovanni Pasqualoni, Domenica Paoletti, and Dario Ambrosini. "On the Use of Waste Materials for Thermal Improvement of 3D-Printed Block—An Experimental Comparison." Buildings 13, no. 5 (2023): 1136. http://dx.doi.org/10.3390/buildings13051136.

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Over the years, the building envelope has evolved from a protective barrier element to a complex filter system capable of optimizing the interactions between the external and internal environments. An efficient envelope reacts flexibly to variable external conditions, minimizing heat losses in the winter season. Therefore, insulating materials play a fundamental role in building’s thermal performance. In this scenario, Additive Manufacturing represents an emerging and promising solution for the construction sector. Three-dimensional printing allows the creation of custom geometries, reduces ma

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Voliotis, Aristeidis, Mao Du, Yu Wang, et al. "The influence of the addition of isoprene on the volatility of particles formed from the photo-oxidation of anthropogenic–biogenic mixtures." Atmospheric Chemistry and Physics 22, no. 20 (2022): 13677–93. http://dx.doi.org/10.5194/acp-22-13677-2022.

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Abstract. In this study, we investigate the influence of isoprene on the volatility of secondary organic aerosol (SOA) formed during the photo-oxidation of mixtures of anthropogenic and biogenic precursors. The SOA particle volatility was quantified using two independent experimental techniques (using a thermal denuder and the Filter Inlet for Gas and Aerosols iodide high-resolution time-of-flight Chemical Ionisation Mass Spectrometer – FIGAERO-CIMS) in mixtures of α-pinene/isoprene, o-cresol/isoprene, and α-pinene/o-cresol/isoprene. Single-precursor experiments at various initial concentratio

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Shao, Yunqi, Aristeidis Voliotis, Mao Du, et al. "Chemical composition of secondary organic aerosol particles formed from mixtures of anthropogenic and biogenic precursors." Atmospheric Chemistry and Physics 22, no. 15 (2022): 9799–826. http://dx.doi.org/10.5194/acp-22-9799-2022.

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Abstract. A series of experiments was designed and conducted in the Manchester Aerosol Chamber (MAC) to study the photo-oxidation of single and mixed biogenic (isoprene and α-pinene) and anthropogenic (o-cresol) precursors in the presence of NOx and ammonium sulfate seed particles. Several online techniques (HR-ToF-AMS, semi-continuous GC-MS, NOx and O3 analyser) were coupled to the MAC to monitor the gas and particle mass concentrations. Secondary organic aerosol (SOA) particles were collected onto a quartz-fibre filter at the end of each experiment and analysed using liquid chromatography–ul

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Badora, Damian, Rafał Wawer, Anna Nieróbca, et al. "Simulating the Effects of Agricultural Adaptation Practices onto the Soil Water Content in Future Climate Using SWAT Model on Upland Bystra River Catchment." Water 14, no. 15 (2022): 2288. http://dx.doi.org/10.3390/w14152288.

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The article presents predicted changes in soil water content in the Bystra river catchment (eastern Poland) for various scenarios of climate change and adaptation practices obtained on the basis of a SWAT model simulation for three regional climate models driven by the global climate model EC-EARTH for the years 2041–2050 and the RCP 4.5 and 8.5 RCP scenarios. Climate scenarios were put against five adaptation scenarios presenting changes in land use and protective measures compared against a zero scenario of BaU (Business as Usual) kept in the future climate. Adaptation scenarios 1–5 are modi

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Ushivtsev, Vladimir B., Sergey V. Vostokov, Nikita B. Vodovsky, Maya L. Galaktionova, and Gulnara А. Akhmedova. "DEVELOPMENT OF LOCAL COMMUNITIES ON THE BASIS OF EXPERIMENTAL BOTTOM STATIONS IN DIFFERENT ZONES OF THE NORTH-CASPIAN SHELF." South of Russia: ecology, development 13, no. 3 (2018): 13–30. http://dx.doi.org/10.18470/1992-1098-2018-3-13-30.

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Aim.On the basis of four experimental bottom stations installed at various depths of the North Caspian shelf, the local communities of marine organisms were formed, on various constructions and in close proximity to them were investigated. The aim of the work is to study the features of community development on the basis of bottom biological stations, to measure their quantitative characteristics, to assess the informative character of the structural and functional characteristics of local communities for analyzing the state of the marine environment. Methods. Experimental bottom stations were

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Felinska, Eleni Amelia, Zi-Wei Chen, Thomas Ewald Fuchs, et al. "Surgical Performance Is Not Negatively Impacted by Wearing a Commercial Full-Face Mask with Ad Hoc 3D-Printed Filter Connection as a Substitute for Personal Protective Equipment during the COVID-19 Pandemic: A Randomized Controlled Cross-Over Trial." Journal of Clinical Medicine 10, no. 3 (2021): 550. http://dx.doi.org/10.3390/jcm10030550.

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(1) Background: During the COVID-19 pandemic, shortages in the supply of personal protective equipment (PPE) have become apparent. The idea of using commonly available full-face diving (FFD) masks as a temporary solution was quickly spread across social media. However, it was unknown whether an FFD mask would considerably impair complex surgical tasks. Thus, we aimed to assess laparoscopic surgical performance while wearing an FFD mask as PPE. (2) Methods: In a randomized-controlled cross-over trial, 40 laparoscopically naive medical students performed laparoscopic procedures while wearing an

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Ma, Yue, Yuko Yoshikawa, Toshiaki Mori, Tadayuki Imanaka, and Kenichi Yoshikawa. "3P123 Protective Effect of Ascorbic Acid on Double-strand Breaks of Giant DNA induced by photo- and gamma-irradiation(05B. Nucleic acid: Interaction & Complex formation,Poster,The 52nd Annual Meeting of the Biophysical Society of Japan(BSJ2014))." Seibutsu Butsuri 54, supplement1-2 (2014): S269. http://dx.doi.org/10.2142/biophys.54.s269_3.

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Cetera, Paola, Wolfgang Gindl-Altmutter, Maurizio D’Auria, Hrvoje Turkulin, and Luigi Todaro. "Native and TMT Chestnut Extractives as Hydrophobic and Photostabylizing Additives for Wood Surfaces." Forests 15, no. 8 (2024): 1358. http://dx.doi.org/10.3390/f15081358.

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Wood extractives have proven strong anti-oxidative properties which may be used to mitigate surface deterioration caused by photolytic effects and free radical formations. An interesting challenge regarding wood extractives is understanding how they behave in terms of treating natural wood surfaces to reduce anti-oxidative processes that arise from exposure to the main environmental factors. In this study, the possible efficacy of chestnut (Castanea sativa Mill.) extractives derived from native (CH) and thermally modified wood (TMT CH), as a means of protecting against UV exposure in poplar (P

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Shupyk, O. V., A. Y. Mazurkevich, and R. R. Bokotko. "Experimental modeling of bacterial keratitis and uveitis." Theoretical and Applied Veterinary Medicine 8, no. 4 (2020): 276–82. http://dx.doi.org/10.32819/2020.84041.

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When developing new protocols and methods for treating eye diseases, there is a need to set up an experiment with modeling a particular pathology in vivo. Currently, there are several methods for modelling keratitis and uveitis, however, their effectiveness remains unclear. In our research, under the experimental conditions on laboratory animals (rabbits), were applied three action methods of pathological factors causing inflammation and morphofunctional changes in eye tissues. The first method included the effect of ultraviolet exposure for 3 min using a DRT-240 mercury lamp, followed by infe

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Yang, Lili, Zhiting Ou, and Guancheng Jiang. "Research Progress of Elastomer Materials and Application of Elastomers in Drilling Fluid." Polymers 15, no. 4 (2023): 918. http://dx.doi.org/10.3390/polym15040918.

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An elastomer is a material that undergoes large deformation under force and quickly recovers its approximate initial shape and size after withdrawing the external force. Furthermore, an elastomer can heal itself and increase volume when in contact with certain liquids. They have been widely used as sealing elements and packers in different oil drilling and development operations. With the development of drilling fluids, elastomer materials have also been gradually used as drilling fluid additives in drilling engineering practices. According to the material type classification, elastomer materi

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Shuisky, Yu D., G. V. Vykhovanetz, and O. O. Stoyan. "CENTRAL PART OF NATURAL COASTAL SYSTEM TENDRA–JARYLGACH, THE BLACK SEA COAST." Odesa National University Herald. Geography and Geology 29, no. 1(44) (2024): 93–108. http://dx.doi.org/10.18524/2303-9914.2024.1(44).305374.

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Problems of Research and Purpose. In the theory of general geomorphology, the section on coastal-marine processes at the genetic contact-zone between Land and Ocean assigns importance to the study of relief associations. One such complex of geomorphologic association on maritime coastlines is the winged-forelands. They consist of interconnected complex capes, active cliffs, typical benches, sandy beaches, and aeolian forms. Wind, sea wave, geobotanical, zoogeographical, geochemical, and other factors contribute to their development. Their morphology and dynamics are determined by lithodynamic

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Левин, В. И., И. А. Акулина та Л. А. Антипкина. "ОТВЕТНАЯ РЕАКЦИЯ ФИЗИОЛОГИЧЕСКИ РАЗНОКАЧЕСТВЕННЫХ СЕМЯН ЯРОВОЙ ПШЕНИЦЫ НА ОБРАБОТКУ ЭМИСТИМОМ, Р." VESTNIK RIAZANSKOGO GOSUDARSTVENNOGO AGROTEHNOLOGICHESKOGO UNIVERSITETA IM P A KOSTYCHEVA 16, № 4(64) (2024): 26–35. https://doi.org/10.36508/rsatu.2024.14.95.005.

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Проблема и цель. Систематическое применение пестицидов в интенсивных технологиях выращивания сельскохозяйственных культур неизбежно сопровождается развитием резистентности и токсинообразующей способности у вредоносных организмов. Тогда как культурные растения на воздействие пестицидов отвечают стрессовыми реакциями, которые сопровождаются угнетением физиологических процессов, нарушением гормонального баланса и адаптационных систем. В таком состоянии растения иммунодефицитны. Современная аграрная наука альтернативу небезопасным химическим пестицидам при защите растений видит в применении препар

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