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Journal articles on the topic 'Admissible levels'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Mullins, John. "Nondeterministic Admissible Interference." JUCS - Journal of Universal Computer Science 6, no. (11) (2000): 1054–70. https://doi.org/10.3217/jucs-006-11-1054.

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In this article we address the issue of confidentiality of information in the context of downgrading systems i.e. systems admitting information flow between secrecy levels only through a downgrader. Inspired by the intuition underlying the usual definition of admissible information flow, we propose an analogue based on trace equivalence as developed in the context of concurrency theory and on a modification of the usual definition of purge function. We also provide unwinding conditions to guarantee a consistent and complete proof method in terms of communicating transition systems. We take adv

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2

Buyakova, Natal'ya, Andrey Kryukov, and Evgeniy Glyzin. "ELECTROMAGNETIC FIELDS IN THE AUTOTRANSFORMER SYSTEMS OF TRACTION POWER SUPPLY." Modern Technologies and Scientific and Technological Progress 2018, no. 1 (2020): 135–36. http://dx.doi.org/10.36629/2686-9896-2020-2018-1-135-136.

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Results of imitating modeling of electromagnetic fields (EMF) in the systems of traction power supply of 94 kV are described. It is shown that tensions of EMF in these systems don't surpass admissible levels.

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3

Mouayn, Z., H. Kassogue, P. Kayupe Kikodio, and I. F. Fatani. "Generalized Wehrl entropies and Euclidean Landau levels." International Journal of Wavelets, Multiresolution and Information Processing 17, no. 04 (2019): 1950024. http://dx.doi.org/10.1142/s0219691319500243.

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We are concerned with a class of generalized coherent states (GCS) attached to Euclidean Landau levels (or to [Formula: see text]-true-polyanalytic spaces), which can be obtained by displacing a Gaussian–Hermite function as an admissible (or window) function. Precisely, we evaluate the Wehrl entropy for a density operator representing a projector on a Fock state (pure states) and we give an upper bound for this entropy. We also establish an exact formula of this entropy for the heat operator (mixed states) associated with the harmonic oscillator. In this case, the behavior of the entropy with

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4

Marchant, Gary E. "Hormesis and toxic torts." Human & Experimental Toxicology 27, no. 2 (2008): 97–107. http://dx.doi.org/10.1177/0960327107086567.

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Policy implementation of hormesis has to date focused on regulatory applications. Toxic-tort litigation may provide an alternative policy venue for real-world applications of hormesis. Businesses and government entities, who are sued by individuals claiming to have been injured by exposure to very low levels of toxic substances may defend those cases by deploying hormesis to argue that such exposures were unlikely to be harmful. The threshold issue in using hormesis in toxic-tort defense is whether such evidence will be admissible under applicable standards for scientific evidence, which will

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5

Bakić, Petar, and Marcela Hanzer. "Theta correspondence for p-adic dual pairs of type I." Journal für die reine und angewandte Mathematik (Crelles Journal) 2021, no. 776 (2021): 63–117. http://dx.doi.org/10.1515/crelle-2021-0006.

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Abstract We describe explicitly the Howe correspondence for the symplectic-orthogonal and unitary dual pairs over a nonarchimedean local field of characteristic zero. More specifically, for every irreducible admissible representation of these groups, we find its first occurrence index in the theta correspondence and we describe, in terms of their Langlands parameters, the small theta lifts on all levels.

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6

Volkova, E. N., V. V. Belyaev, V. G. Klenus, A. Ye Kaglian, L. P. Yurchuk, and V. A. Karapysh. "Radioecological investigations of some Zhytomyr region rivers." Nuclear Physics and Atomic Energy 6, no. 2 (2006): 110–14. https://doi.org/10.15407/jnpae2006.02.110.

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The results of radioecological investigations of ecosystems of Zhytomyr region rivers are given. There are determined 90Sr and 137Cs concentrations in abiotic and biotic components of rivers Gnilopyt', Irsha and Zherev, situated in the territories with different density of radioactive pollution. 137Cs concentrations in fishes in river Zherev exceeded two times the admissible levels for that radionuclide.

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7

Kozii, Ivan. "INVESTIGATION OF THE INFLUENCE OF FINELY DISPERSED SOLID SUBSTANCES OF THE ATMOSPHERIC AIR ON HUMANS." Environmental Problems 7, no. 1 (2022): 7–13. http://dx.doi.org/10.23939/ep2022.01.007.

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An analytical study of the impact of solids contained in the air of urban areas on human health was conducted. Based on the analysis of the database of the Organization for Economic Cooperation and Development and the State Statistics Service of Ukraine on the emissions of substances into the atmosphere, it was established that the effects of solids on humans depend on particle diameter, morphological and physicochemical characteristics. The analytical research has shown that suspended airborne substances primarily damage the respiratory system and cause harm to the human cardiovascular system

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8

Park, S. B., and G. P. Carman. "Minimizing Stress Levels in Piezoelectric Media Containing Elliptical Voids." Journal of Applied Mechanics 64, no. 3 (1997): 466–70. http://dx.doi.org/10.1115/1.2788916.

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In this paper we present an analytical solution to calculate the stress concentrations around an elliptical void in a piezoelectric medium subjected to electrical loading. We show that the stress concentrations can be eliminated if the material properties satisfy a certain mathematical relation. While a trivial solution exists for this problem, we demonstrate that other families of solutions exist (optimal) to minimize/eliminate the stresses. The optimal families are shown to be independent of geometry and therefore are universally applicable to a specific material system. The optimal families

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9

Perše, Ozren. "Vertex operator algebras associated to type B affine Lie algebras on admissible half-integer levels." Journal of Algebra 307, no. 1 (2007): 215–48. http://dx.doi.org/10.1016/j.jalgebra.2006.05.004.

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10

BRUMAR, Dragomir, and Marius CIOBOATĂ. "STORAGE-CONDITIONING WAREHOUSE LOCATION AGRICULTURAL PRODUCTS." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 54, no. 2 (2025): 164–69. https://doi.org/10.52846/aamc.v54i2.1606.

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The proper placement of the construction requires specific geotechnical research in the site area, with the aim of providing the data necessary to solve the basic problems and specify the aspects related to: stratification of the land on the site; physical-mechanical characteristics of existing soils; admissible pressures at different foundation levels; probable settlements; framing of field excavations according to TS regulations; frost depth; seismic framing; hydrogeological data.

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11

Kupczewska-Dobecka, Małgorzata, Renata Soćko, and Sławomir Czerczak. "RD50Value as the Criterion for Setting Maximum Admissible Levels of Occupational Exposure to Irritants in Poland." International Journal of Occupational Safety and Ergonomics 12, no. 1 (2006): 95–99. http://dx.doi.org/10.1080/10803548.2006.11076672.

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12

Adamović, Dražen, Victor G. Kac, Pierluigi Möseneder Frajria, Paolo Papi, and Ozren Perše. "An Application of Collapsing Levels to the Representation Theory of Affine Vertex Algebras." International Mathematics Research Notices 2020, no. 13 (2018): 4103–43. http://dx.doi.org/10.1093/imrn/rny237.

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Abstract We discover a large class of simple affine vertex algebras $V_{k} ({\mathfrak{g}})$, associated to basic Lie superalgebras ${\mathfrak{g}}$ at non-admissible collapsing levels $k$, having exactly one irreducible ${\mathfrak{g}}$-locally finite module in the category ${\mathcal O}$. In the case when ${\mathfrak{g}}$ is a Lie algebra, we prove a complete reducibility result for $V_k({\mathfrak{g}})$-modules at an arbitrary collapsing level. We also determine the generators of the maximal ideal in the universal affine vertex algebra $V^k ({\mathfrak{g}})$ at certain negative integer leve

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13

Matusse, Cláudio, Zelda Lucamba, João Bila, et al. "Aflatoxin Contamination of Various Staple Foods from Angola and Mozambique." Toxins 16, no. 12 (2024): 516. http://dx.doi.org/10.3390/toxins16120516.

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Aflatoxins constitute a significant risk in staple foods produced in African countries. This research aimed to analyze the total aflatoxin (AFT) contamination of various staple foods in Angola and Mozambique. A total of 233 samples of corn, peanuts, beans, rice, and cassava flour collected from farmers or local markets from the province of Cuanza Sul, Angola, and the provinces of Gaza and Inhambane, South Mozambique, were analyzed for the presence of AFT using the lateral flow strip method via AgraStrip® Pro WATEX® (Romer). The results showed that, from all matrices, the highest incidence and

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14

Sturman, V. I., A. D. Pishchugina, and V. A. Cherkasov. "Features of Formation of Electromagnetic Fields of Industrial and Radio-Frequency Ranges in the Conditions of the Modern Residential Development of High Number of Storeys." Radiation biology. Radioecology 64, no. 3 (2024): 324–34. https://doi.org/10.31857/s0869803124030086.

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The tool research of electromagnetic fields of industrial frequency and radio-frequency range in by Murino of the Leningrad Region is executed. Steady excesses of admissible level of tension on borders of a sanitary rupture of the high-voltage line of 330 kV are revealed. Excesses of admissible levels of magnetic induction and in the radio-frequency range – energy stream density are not revealed. It is established that the difference of values of electric field strength in 1.8 m from a surface and at the height of 72 m reaches 1–2 orders that can be explained only with the grounding Earth’s su

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15

Grzeszczak, Jan, Łukasz Grela, and Thomas Achter. "Environmentally Friendly Replacement of Mature 200 MW Coal-Fired Power Blocks with 2 Boilers Working on One 500 MW Class Steam Turbine Generator (2on1 Unit Concept)." Archives of Thermodynamics 38, no. 4 (2017): 165–90. http://dx.doi.org/10.1515/aoter-2017-0030.

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Abstract The paper covers problems of the owners of a fleet of long-operated conventional power plants that are going to be decommissioned soon in result of failing to achieve new admissible emissions levels or exceeding pressure elements design lifetime. Energoprojekt-Katowice SA, Siemens AG and Rafako SA presents their joint concept of the solution which is a 2on1 concept - replacing two unit by two ultra-supercritical boilers feeding one turbine. Polish market has been taken as an example.

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16

Oiste, Ana-Maria, Florin-Constantin Mihai, and Dan-Adrian Chelaru. "Soundscape in North-Eastern Part of Iasi City (Sararie – Ticau District)." Bulletin USAMV series Agriculture 72, no. 1 (2015): 179–86. https://doi.org/10.15835/buasvmcn-agr: 11190.

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This paper presents a complex study of noise levels from road traffic source and the variation during the seasons in an old residential area located in the north-eastern part of Iasi city, an important educational and cultural centre of the country. The study reveal the correlation between noise levels and social activities developed in the area: low number of inhabitants because of the holidays time in August and the resumption of the educational activity in autumn, including school start in September and of the university activity in October. After direct observations, th

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17

Maltese, S., G. Branca, D. Altieri, M. Boutaleb, L. Pampuri, and T. Teruzzi. "CO₂ and thermal comfort analysis of schools in Lugano – a wide-scale monitoring." Journal of Physics: Conference Series 2600, no. 10 (2023): 102016. http://dx.doi.org/10.1088/1742-6596/2600/10/102016.

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Abstract Energy consumption and indoor air quality are closely linked, especially in crowded buildings such as schools. This project aims to provide a complete overview of CO2 and temperature levels in the classrooms of primary and pre-schools in the municipality of Lugano. More than 100 classrooms are live-monitored thanks to the sensors installed. The monitoring is still ongoing, and some initial analyses show air quality levels most of the time within admissible ranges, with episodes of overheating. The next phase of the project will be to better assess thermal comfort and to use CO2 and te

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18

Mihalcea, Adriana-Alina, Liliana-Celia Rusu, and Leonard Domnișoru. "On a river-barge numerical strength analysis in head design wave loads." Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XI, Construcţii navale/ Annals of "Dunărea de Jos" of Galati, Fascicle XI, Shipbuilding 47 (December 4, 2024): 101–6. https://doi.org/10.35219/annugalshipbuilding/2024.47.12.

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The FEM approach is a well-established computational technique for solving the governing equations of structural mechanics under various loadings. To delve deeper into the FEM approach, we focus on the floating structure of a river barge. This study aims to determine a structure's structural capacity by applying admissible stress criteria following the DNV rules. The structural analysis involves a comparative study of stress levels from the equivalent design wave loads for two river-barge operational conditions, light, and full cargo cases.

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19

BRUMAR, Dragomir, and Alin CROITORU. "GEOTECHNICAL STUDY AND CALCULATION OF THEFOUNDATION LAND FOR THE LOCATION OF RAISING CHICKENS FARM." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 52, no. 2 (2023): 190–93. http://dx.doi.org/10.52846/aamc.v52i2.1383.

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The geotechnical study resulted from the need to know the foundation land in order to properly place the investment and includes the geotechnical exploration works performed in the site area, with the aim of providing the data necessary to solve the basic problems specifying the aspects related to: the stratification of the land on the site; physical-mechanical characteristics of existing soils; admissible pressures at different foundation levels; probable settlements; framing of field excavations; frost depth; seismic framing; hydrogeological data.

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20

BRUMAR, Dragomir, and Marius MILUȚ. "LIVESTOCK FARM LOCATION OF PIGS REPRODUCTION BASED ON THE GEOTECHNICAL STUDY." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 52, no. 2 (2023): 184–89. http://dx.doi.org/10.52846/aamc.v52i2.1382.

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The geotechnical study resulted from the need to know the foundation land in order to properly place the investment and includes the geotechnical exploration works performed in the site area, with the aim of providing the data necessary to solve the basic problems specifying the aspects related to: the stratification of the land on the site; physical-mechanical characteristics of existing soils; admissible pressures at different foundation levels; probable settlements; framing of field excavations; frost depth; seismic framing; hydrogeological data.

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21

Dobecka, Malgorzata Kupczewska, Slawomir Czerczak, and Renata Socko. "RD50 value as the criterion for setting maximum admissible levels of occupational exposure to irritants in Poland." Toxicology Letters 180 (October 2008): S64. http://dx.doi.org/10.1016/j.toxlet.2008.06.553.

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22

Moiseenko, D. A., and N. N. Zhilskiy. "Limitation of the constitutional right to hold public events under the regime of response levels." Sociology and Law 15, no. 2 (2023): 230–39. http://dx.doi.org/10.35854/2219-6242-2023-2-230-239.

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In this study, the authors examined the possibility of limiting the constitutional right to hold public events in view of the response levels regime from a factual and legal point of view. The possibility of restricting the right to public events under martial law and the response level regime derived from it in the context of compliance with the norms of the Constitution of the Russian Federation is assessed. Established the grounds on which the restriction of the right in question may be recognized admissible. The legal possibility of restricting the right to public events is characterized.

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23

Fedorov, Vladimir N., E. V. Zibarev, Yu A. Novikova, A. A. Kovshov, K. B. Fridman, and O. V. Slusareva. "HYGIENIC ASSESSMENT OF HEALTH RISK FACTORS FOR POPULATION OF MEGAPOLISIS’SATELLITE TOWNS BY THE EXAMPLE OF LENINGRAD REGION." Hygiene and sanitation 96, no. 7 (2019): 614–19. http://dx.doi.org/10.18821/0016-9900-2017-96-7-614-619.

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Minor towns with population size of 50-100 thousand people are much rarely studied in regards of the ecological-hygienic assessment of human environment, in spite of the fact that they are characterized by specific ecological problems. The objective of the study was the hygienic assessment of the impact of urban environment on population health status in Tikhvin and Gatchina towns of the Leningrad region. Morbidity rate in the population of Tikhvin and Gatchina in 2005-2015, atmospheric emissions of industrial enterprises, findings on monitoring for both atmospheric air pollution and centraliz

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Ivanov, I. V., V. I. Burmistrov, and E. I. Matkevich. "ANALYSIS OF PROBABLE RADIATION LEVELS TO COSMONAUTS IN A SHORT-TERM LUNAR MISSION." Aerospace and Environmental Medicine 58, no. 1 (2024): 32–46. http://dx.doi.org/10.21687/0233-528x-2024-58-1-32-46.

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Probable dose loads to cosmonauts in a short-term lunar mission including the transit and stay on the surface were estimated using actual measurements and model calculations. It was found that doses of radiation received in a 21-day mission with a 14-day stay on the Moon in the period of minimal solar activity will make about 130 mSv; in the period of solar maximum and in case of a solar event radiation doses may reach 9–12 Svwith the maximum admissible dose of 250 mSv over a month. Increase of mass thickness of radiation shield of the command module from 10 to 20 g/cm2 (aluminum equivalent) a

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25

Vasilyev, A. V. "METHODS AND RESULTS OF ECOLOGICAL MONITORING OF SOME PHYSICAL POLLUTIONS OF ENVIRONMENT ON THE EXAMPLE OF THE TERRITORY OF CITY DISTRICTS OF SAMARA REGION OF RUSSIA." Izvestiya of Samara Scientific Center of the Russian Academy of Sciences 23, no. 5 (2021): 25–38. http://dx.doi.org/10.37313/1990-5378-2021-23-5-25-38.

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The paper is devoted to the problem of ecological monitoring of physical pollutions of environment of urban territories on the example of the territory of city districts of Samara region. Methods of carrying out of researches of physical pollutions are considered. In framework of researches measurements of levels of physical pollutions were carried out: ambient dose equivalent power of gamma radiation, external sources of variable electromagnetic fields of industrial (electrical and magnetic components) and radio frequency range (electrical and magnetic components and energy low density), soun

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Рябченко, V. Ryabchenko, Рубцова, et al. "Overhead and Underground Power Lines’ Magnetic Fields: Rationing, Calculation, Design." Safety in Technosphere 3, no. 2 (2014): 52–63. http://dx.doi.org/10.12737/3672.

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Normative documents related to magnetic field (MF) created by power lines have been considered and maximum permissible levels of MF intensity (induction) have been specified. The field intensity calculation algorithm is given. It is shown that multiphase sources create an elliptic polarization field, which intensity’s greatest operating value is on ellipse’s big axis, and calculation of resultant value on components with Pythagorean theorem application leads to an error with real value increase to 41%. Distinctions of results of these calculation methods’ application ha

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Benedikter, Niels. "Effective dynamics of interacting fermions from semiclassical theory to the random phase approximation." Journal of Mathematical Physics 63, no. 8 (2022): 081101. http://dx.doi.org/10.1063/5.0091694.

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I review results concerning the derivation of effective equations for the dynamics of interacting Fermi gases in a high-density regime of mean-field type. Three levels of effective theories, increasing in precision, can be distinguished: the semiclassical theory given by the Vlasov equation, the mean-field theory given by the Hartree–Fock equation, and the description of the dominant effects of non-trivial entanglement by the random phase approximation. Particular attention is given to the discussion of admissible initial data, and I present an example of a realistic quantum quench that can be

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Soldatov, S. K., A. N. Zelenin, S. P. Dragan, et al. "METHOD OF DEFINING THE OBJECT FREE ZONES ON CLOSE-TO-AERODROME TERRITORIES BY THE CRITERION OF ELECTROMAGNETIC INFLUENCE ON POPULATION AND PRACTICAL EXPERIENCE." Aerospace and Environmental Medicine 55, no. 6 (2021): 75–81. http://dx.doi.org/10.21687/0233-528x-2021-55-6-75-81.

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The method of defining the object free zones on close-to-aerodrome territories is calculation based on the data of electromagnetic fields from radio landing aids and air-ground communication stations. The core of it is division of the antenna surface into Huygens wavelets with subsequent summing up the radiation field from all wavelets at a specified point. The method can be used to construct the lines of equal peak and equivalent EMF strength levels that do not exceed admissible values on their outer boundary and beyond, and to substantiate measures intended to assure sanitary-epidemiological

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Карпачев, Андрей, Andrey Karpachev, Борис Букеткин, and Boris Buketkin. "High technology of cutting disks rolling by spherical rollers." Science intensive technologies in mechanical engineering 2, no. 1 (2017): 27–29. http://dx.doi.org/10.12737/24209.

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The preparation for the operation of disk cutting tools by means of the creation of in them a preliminary stressed state (residual stresses) is considered. Methods for the definition of the influence arising at the operation of the uneven heating of a tool body upon its stability and dynamic characteristics which allows substantiating a choice of a formed field of residual stresses at preparation are mentioned. The admissible levels of residual stresses which do not result in the flat form distortion of a disk after rolling are defined and a method for the definition of corresponding pressing

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Bará, Salvador, Fabio Falchi, Raul C. Lima, and Martin Pawley. "Can we illuminate our cities and (still) see the stars?" International Journal of Sustainable Lighting 23, no. 2 (2021): 58–69. http://dx.doi.org/10.26607/ijsl.v23i2.113.

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Could we enjoy starry skies in our cities again? Arguably yes. The actual number of visible stars will depend, among other factors, on the spatial density of the overall city light emissions. In this paper it is shown that reasonably dark skies could be achieved in urban settings, even at the center of large metropolitan areas, if the light emissions are kept within admissible levels and direct glare from the light sources is avoided. These results may support the adoption of science-informed, democratic public decisions on the use of light in our municipalities, with the goal of recovering th

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Vukanac, Ivana, Marija Jankovic, Milica Rajacic, et al. "Assessment of natural radioactivity levels and radon exhalation rate potential from various building materials." Nuclear Technology and Radiation Protection 35, no. 1 (2020): 64–73. http://dx.doi.org/10.2298/ntrp2001064v.

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Various imported building materials commonly used in construction and industry in Serbia were analyzed using gamma spectrometry. Based on the activity concentrations of 226Ra, 232Th, and 40K in the investigated samples, radium equivalent activity, Raeq, absorbed dose rate, D, annual effective dose, DE, and the external hazard index, Hex, were calculated to assess the radiation hazard for people. The Raeq for most of the analyzed samples (416 in total) was lower than the maximum admissible value of 370 Bqkg-1 set in the UNSCEAR report. The absorbed gamma dose rate in air was found to vary from

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Leontieva, Svetlana, and Vlad Toderica. "Exploring the rule of admissibility in the criminal process: theoretical and practical analysis." Studia Universitatis Moldaviae. Seria Stiinte Sociale, no. 3(173) (June 2024): 201–6. http://dx.doi.org/10.59295/sum3(173)2024_27.

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Respecting the rule of admissibility of evidence is essential for a criminal process, certain rules regarding the admissibility of evidence being established in the jurisprudence of the ECtHR and incorporated into national legislation. Generally, the principle of admissibility of evidence means that in principle any evidence is admissible, except in cases where legal limitations and limitations imposed by general principles intervene. This article analyzes the rules of admissibility of evidence in criminal proceedings provided at the European and national levels, paying attention to the functi

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Minyuk, P. S., D. K. Pozhidaeva та S. S. S. S. Burnatny. "Гидрохимические характеристики природных и техногенных вод Магаданской области". Bulletin of the North-East Science Center, № 2 (28 червня 2022): 45–58. http://dx.doi.org/10.34078/1814-0998-2022-2-45-58.

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The hydrochemical characteristics of water objects, including lakes and a number of streams and rivers as well as technogenic sedimentation tanks located in the areas of placer gold mining have been studied. Total dissolved solids, contents of individual ions, total hardness (TH), total suspended solids (TSS), and acidic pH have been determined. Lake water is ultra-fresh with total dissolved solids of 15.08-52.6 mg/l. Increased values of this parameter have been found in lakes located in the Berelekh River valley, where gold placers are being developed. Water bodies from placer mining sites ar

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Evtugyn, Gennady, Anna Porfireva, Tatjana Kulikova, and Tibor Hianik. "Recent Achievements in Electrochemical and Surface Plasmon Resonance Aptasensors for Mycotoxins Detection." Chemosensors 9, no. 7 (2021): 180. http://dx.doi.org/10.3390/chemosensors9070180.

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Mycotoxins are secondary metabolites of fungi that contaminate agriculture products. Their release in the environment can cause severe damage to human health. Aptasensors are compact analytical devices that are intended for the fast and reliable detection of various species able to specifically interact with aptamers attached to the transducer surface. In this review, assembly of electrochemical and surface plasmon resonance (SPR) aptasensors are considered with emphasis on the mechanism of signal generation. Moreover, the properties of mycotoxins and the aptamers selected for their recognitio

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Ball, M. J., and J. V. Douglas. "Redefining and Improving Patient Safety." Methods of Information in Medicine 41, no. 04 (2002): 271–76. http://dx.doi.org/10.1055/s-0038-1634487.

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Summary Objectives: The Institute of Medicine (IOM) has focused attention on patient safety in the united States. Other countries share these concerns. Methods: Governmental agencies and professional organizations are redefining approaches to safety, calling upon the use of information and communication technology as an enabler and expanding the range of evidence admissible in documenting success. Results: Efforts to understand medical errors have used retrospective chart review, incident reporting, and computerized surveillance; the result is an evolving picture of the number, nature, and cau

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Pawlaczyk-Łuszczyńska, Małgorzata. "Occupational Exposure to Infrasonic Noise in Poland." Journal of Low Frequency Noise, Vibration and Active Control 17, no. 2 (1998): 71–83. http://dx.doi.org/10.1177/026309239801700202.

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This paper presents the results of infrasonic noise measurements performed at various workplaces in industry and transportation in Poland. The study concerned noise emitted by 124 different types of machinery, appliances and means of transport. The measurements were made under typical conditions of work and with reference to the Polish Standard PN-86/N–01338 and international standards ISO 7196 and ISO 9612. According to PN–86/N–01338, within 1/1 octave bands 8 – 31.5 Hz, acoustic pressures exceeding the admissible levels for (a) workers' health protection were found in 5 (4.0%) cases, (b) pro

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KHADIJA ILYAS, SANA SHAHBAZ, MUHAMMAD MATEEN TAHIR, et al. "Analyzing Cadmium and Nickel Levels in Labeo Rohita, Catla Catla, and Cirrihinus Mrigala From Local Fish Markets in Lahore, Pakistan." University of Sindh Journal of Animal Sciences (USJAS) 7, no. 03 (2023): 37–51. http://dx.doi.org/10.57038/usjas.v7i03.6505.

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Thirty-six (36) fish samples were collected from the different local fish markets of Lahore city to check the bioaccumulation of heavy metals. The mean Cd concentration ranged from (32.33 – 39.69ug/kg), (23.26 – 35.45ug/kg), (35.37 -45.06ug/kg) in gills (28.99- 38.17ug/kg), (21.74– 30.07ug/kg), (33.92 – 43.61ug/kg) in muscles (26.12– 35.56ug/kg), (18,87– 31.32ug/kg), (31.05 – 41.01ug/kg) in liver of Labeo rohita, Catla catla and Cirrihinus mrigala respectively. The mean Ni concentration ranged from (44.93 – 52.86ug/kg), (45.65 – 52.86ug/kg), (52.30 -61.14ug/kg) in gills (43.48- 51.41ug/kg), (4

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Kobza, Joanna, Mariusz Geremek, and Lechosław Dul. "Ozone Concentration Levels in Urban Environments—Upper Silesia Region Case Study." International Journal of Environmental Research and Public Health 18, no. 4 (2021): 1473. http://dx.doi.org/10.3390/ijerph18041473.

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Although ozone (O3) plays a crucial role in screening the Earth’s surface and lower atmosphere layers from the ultraviolet radiation, troposphere ozone is proven to have negative health effects on the human body and is one of the greenhouse gases. The objective of this study was to perform a measurement-based assessment for determining whether the concentration of ozone is within admissible limits, or exceeded, in Silesia Province and does not pose a threat to the local population. The data provided by the Voivodship Inspectorate for Environmental Protection in Katowice were used in the analys

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Stancu Sanda, Mia Nuta, Dorin Bombos, and Ion Onutu. "A SCREENING OF THE HYDROGEN SULFIDE LEVELS IN PLOIEȘTI CITY, ROMANIA." Romanian Journal of Petroleum & Gas Technology 4 (75), no. 2 (2023): 193–200. http://dx.doi.org/10.51865/jpgt.2023.02.19.

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Oil refineries and petrochemical facilities contribute to the pollution of the environment either air, water, or soil releasing hazardous and toxic air pollutants into the atmosphere. These include nitrogen oxides (NOx), carbon monoxide (CO), hydrogen sulfide (H2S), sulfur dioxide (SO2), and particulate matter (PM), affecting both environment and human health. In the range of air pollutants, hydrogen sulfide is less monitored and reported despite its importance in determining adverse effects. Background H2S concentrations in air were found to range commonly from 0.11 ppb to 0.33 ppb. The conce

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Wu, Li Xin, and Guo Zhu Cheng. "Evaluation on Damaged Pavement and Its Influence on Capacity of Urban Road Section." Advanced Materials Research 446-449 (January 2012): 2514–17. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.2514.

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To evaluate the capacity of urban road section with damaged pavement accurately, it is necessary to evaluate on damaged pavement and study the quantified affects of damaged pavement on the capacity of road. In this paper, pot hole’s width, rut depth, crack ratio and repair ratio were used as the evaluation indicators of the of pavement’s status, the evaluation method of damaged pavement through gray cluster analysis was given. The surveyed damaged pavement sections are classified through this method. The definition of damaged pavement correction coefficient is given, using gradual approach met

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Wolny, Stanisław. "Emergency Braking of a Mine Hoist in the Context of the Braking System Selection." Archives of Mining Sciences 62, no. 1 (2017): 45–54. http://dx.doi.org/10.1515/amsc-2017-0004.

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Abstract The paper addresses the selected aspects of the dynamic behaviour of mine hoists during the emergency braking phase. Basing on the model of the hoist and supported by theoretical backgrounds provided by the author (Wolny, 2016), analytical formulas are derived to determine the parameters of the braking system such that during an emergency braking it should guarantee that: –the maximal loading of the hoisting ropes should not exceed the rope breaking force, –deceleration of the conveyances being stopped should not exceed the admissible levels Results of the dynamic analysis of the mine

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Veselov, Alexey A. "Influence of additional hierarchical levels on the working characteristics of distributed models." Journal Of Applied Informatics 15, no. 90 (2020): 78–90. http://dx.doi.org/10.37791/2687-0649-2020-15-6-78-90.

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In designing modern computer equipment and digital electronics, the use of simulation models is of great importance. At first, monolithic models were widely used for this. However, they worked well only when their size was relatively small. Because of it developers began to refuse gradually use of monolithic models and to pass to use of the distributed models allowing to increase their speed and to expand borders of their admissible sizes. At the same time, they begin to pay special attention to hierarchical distributed models, which provide the opportunity to investigate the behavior of the c

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Catianis, Irina, Dan Secrieru, Iulian Pojar, et al. "Water Quality, Sediment Characteristics and Benthic Status of the Razim-Sinoie Lagoon System, Romania." Open Geosciences 10, no. 1 (2018): 12–33. http://dx.doi.org/10.1515/geo-2018-0002.

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AbstractRazim Lake is the biggest of Romania’s freshwater lakes and along with other basins as Golovita, Zmeica and Sinoie constitutes a system of great ecological significance, playing also an essential role in the supply of water for irrigation, fishery exploitation, farming, flood prevention, recreational navigation and water tourism. Due to their importance, the environmental conditions in the Razim - Sinoie coastal lakes have attracted an increased public attention in contemporary society. To assess the levels, dissemination and potential sources of contamination in the above-mentioned la

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Kolesnikov, R. A., V. M. Makeev, E. N. Romanova, V. I. Sturman, and K. A. Zhurkina. "THE INVESTIGATION OF THE OBJECTS OF THE PAST ENVIRONMENTAL DAMAGE ON THE VILKITSKY ISLAND (KARA SEA)." Engineering survey 12, no. 5-6 (2018): 32–41. http://dx.doi.org/10.25296/1997-8650-2018-12-5-6-32-41.

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The research of the objects of the the past environmental damage on the Vilkitsky Island located in the Kara Sea. The central part of northern coast where the abandoned objects of the air defense point and the polar station are located is subject to technogenic influence. Around them and on the bank of the Kara sea there are dumps for solid household and industrial waste. Water bodies on the affected part of the island s are polluted with oil and heavy metals. Water quality corresponds to 4, 5 and 6 classes (polluted, dirty and very dirty). Concentrations of oil and heavy metals in the bottom

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Seliverstov, Yuri, Tatiana Glazovskaya, Alexander Shnyparkov, Yana Vilchek, Ksenia Sergeeva, and Alexei Martynov. "Assessment and mapping of snow avalanche risk in Russia." Annals of Glaciology 49 (2008): 205–9. http://dx.doi.org/10.3189/172756408787814672.

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AbstractThe term ‘risk’ can be defined as the probability of unfavourable consequences or negative effects. Risk can be expressed by means of various indices, such as collective or social risk (possible number of dead), individual risk (probability of a person’s death within a certain territory during 1 year), probability of losses, etc. This paper is a case study of the small-scale assessment and mapping of individual avalanche risk focused on the two regions of Russia with the highest levels of avalanche activity: the northern Caucasus and the mountainous parts of Sakhalin island. The basic

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LOZANO-BILBAO, ENRIQUE, SONGLIAN MÉNDEZ, GONZALO LOZANO, et al. "Metals in Mytillus galloprovincialis (Lamarck 1819) and Ensis directus (Conrad 1883): Risk Assessment." Journal of Food Protection 81, no. 10 (2018): 1622–26. http://dx.doi.org/10.4315/0362-028x.jfp-18-120.

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ABSTRACT The study has been conducted with inductively coupled plasma optical emission spectrometry to determine the content of toxic heavy metals, macroelements, and essential elements in two species of bivalves of commercial interest in the Canary Islands: the Mediterranean mussel (Mytillus galloprovincialis, Lamarck 1819) and the razor clam (Ensis directus, Conrad 1883). The study included 40 samples corresponding to 20 specimens of each species acquired from fishmongers on the island of Tenerife. E. directus had higher levels of metals, except for B, Cd, Na, and Zn (0.98, 0.02, 2,006.93, a

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Sturman, V. I., and A. N. Loginovskaya. "MAPPING OF ELECTROMAGNETIC FIELDS OF POWER FREQUENCY IN THE CENTRAL AREA OF IZHEVSK." Bulletin of Udmurt University. Series Biology. Earth Sciences 29, no. 4 (2019): 479–87. http://dx.doi.org/10.35634/2412-9518-2019-29-4-479-487.

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The study of spatial distribution of indicators of intensity of electric fields and magnetic induction in the central area of Izhevsk had been executed. It is established that intensity of electric fields reaches significant values only near overhead high-voltage transmission lines. Magnetic induction over admissible levels is not noted, but within the city territory its values change largely that had been represented on the original map. The dependence of magnetic induction values on the type of building is weak. The central part of Izhevsk is characterized by lower magnetic induction values

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Barrionuevo, Maria J., and German San Blas. "Redescription of immature stages of the soybean looper (Lepidoptera: Noctuidae: Plusiinae)." Canadian Entomologist 148, no. 3 (2015): 247–59. http://dx.doi.org/10.4039/tce.2015.62.

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AbstractChrysodeixis includens (Walker) is a characteristic Plusiinae (Lepidoptera: Noctuidae) species from the Western Hemisphere. The larva have already been found feeding on several different plant families, including economic value crops such as soybeans. This species coexists and can be confused with Rachiplusia nu (Guenée) (Lepidoptera: Noctuidae) in soybean crops. Furthermore, some studies indicate that C. includens shows tolerance to various insecticides, leading to differentiation among these two species to be most important in relation to control procedures to be undertaken. To contr

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Raju Potharaju and M. Aruna. "Determination of the level of some heavy metals from medchal lake in Telangana." World Journal of Biology Pharmacy and Health Sciences 13, no. 1 (2023): 344–47. http://dx.doi.org/10.30574/wjbphs.2023.13.1.0045.

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The aim of this study is to review the research work on concentration of heavy metals in drinking water sources of Medchal Lake. Industrial effluents discharged into the environment, aquatic ecosystem pose a serious threat to our agricultural Products and health. In view of this, levels of some of the heavy metals in Medchal Lake were determined by Atomic Absorption Spectrophotometry. The results obtained show that the mean values of all heavy metals (with the exception of Zn) in water samples from the polluted areas studied were significantly higher than in the control sites, Zn, Pb, Cr, Cu,

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Raju, Potharaju, and Aruna M. "Determination of the level of some heavy metals from medchal lake in Telangana." World Journal of Biology Pharmacy and Health Sciences 13, no. 1 (2023): 344–47. https://doi.org/10.5281/zenodo.7947875.

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The aim of this study is to review the research work on concentration   of heavy metals in drinking water sources of Medchal Lake. Industrial effluents discharged into the environment, aquatic ecosystem pose a serious threat to our agricultural Products and health. In view of this, levels of some of the heavy metals in Medchal Lake were determined by Atomic Absorption Spectrophotometry. The results obtained show that the mean values of all heavy metals (with the exception of Zn) in water samples from the polluted areas studied were significantly higher than in the control sites, Zn,

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