Готові списки джерел за темами / Radiation Hazard Indices

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Добірка наукової літератури з теми "Radiation Hazard Indices"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Radiation Hazard Indices"

Yun, Ko Yu, and Muhammad Arif Bin Sazali. "Assessments of natural radionuclides concentration and radiological hazard indices in Universiti Teknologi Malaysia (UTM)." IOP Conference Series: Materials Science and Engineering 1326, no. 1 (2025): 012012. https://doi.org/10.1088/1757-899x/1326/1/012012.

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Abstract Terrestrial gamma radiation arises from the decay of naturally occurring radionuclides, known as primordial radionuclides. The radiological hazard associated with these radionuclides can be quantified using radiological hazard indices. This study aims to (1) determine the average Terrestrial Gamma Radiation Dose (TGRD) rate at Universiti Teknologi Malaysia (UTM), (2) assess the average concentrations of radionuclides 238U, 232Th, and 40K in UTM soil, and (3) evaluate the corresponding radiological hazard indices. The mean TGRD rate, measured at 30 locations across UTM, was 100.11 ± 16

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Dahesh, Mohamed N., Samir Y. El-Kameesy, Mogahed E. Al-Abyad, Gobran N. Ali, and Abdullah T. Naji. "Natural Radionuclides Concentrations and Associated Radiation Hazard of Some Building Rocks Used in Taiz City, Yemen." University of Science and Technology Journal for Engineering and Technology 1, no. 2 (2024): 21–40. http://dx.doi.org/10.59222/ustjet.1.2.2.

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Building materials comprise a diverse range of natural rocks that contain varying mineral components including radionuclides. Gamma spectrometry-based high-purity Germanium detectors were utilized to measure the activity concentrations of natural radionuclides: Radium-226 (226Ra), Thorium-232 (232Th), and Potassium-40 (40K) in various building rock samples found within and surrounding Taiz city. The activity concentrations of 226Ra, 232Th, and 40K vary from 27.79 ± 0.77 to 234.49 ± 3.13 Bq.kg-1, 25.82 ± 0.40 to 415.31 ± 2.47 Bq.kg-1, and 457.91±2.61 to 1139.56 ± 5.43 Bq.kg-1 with overall avera

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Abbady, Adel G. E. "Estimation of radiation hazard indices from sedimentary rocks in Upper Egypt." Applied Radiation and Isotopes 60, no. 1 (2004): 111–14. http://dx.doi.org/10.1016/j.apradiso.2003.09.012.

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Fares, S., A. Ashour, M. El-Ashry, and M. Abd El-Rahma. "Gamma Radiation Hazards and Risks Associated with Wastes from Granite Rock Cutting and Polishing Industries in Egypt." Nuclear and Radiation Safety, no. 1(53) (March 12, 2012): 64–73. http://dx.doi.org/10.32918/nrs.2012.1(53).13.

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Geological materials usually contaminated with naturally occurring radioactive materials (NORM) have become a focus of great attention. The gamma radiation in samples of a variety of natural tiling rocks (granites) collected from different factories in Egypt for use in the building industry was measured, employing high-resolution g-ray spectrometry. In order to assess the radiological impact from the granites investigated. The radiological hazard indices, annual effective dose equivalent (outdoor and indoor) (Deff), hazard indices (Hex and Hin), activity utilization indices (Ig, Ia) and

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ABBADY, A., N. AHMED, A. ELARABI, R. MICHEL, A. ELKAMEL, and A. ABBADY. "Estimation of radiation hazard indices from natural radioactivity of some rocks." Nuclear Science and Techniques 17, no. 2 (2006): 118–22. http://dx.doi.org/10.1016/s1001-8042(06)60023-7.

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Ademoh, Bello Aisha, Usman Rilwan, and Musa Yusuf. "Assessment on Radiation Hazard Indices from Selected Dumpsites in Lafia Metropolis, Nasarawa State, Nigeria." Journal of Oncology Research 4, no. 1 (2021): 20. http://dx.doi.org/10.30564/jor.v4i1.3840.

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This research reports an assessment of ionizing radiation in some chosen Dumpsites in Lafia Local government area of Nasarawa State. Ionizing radiation measurement was conducted at four Dump sites. The survey was done using a radiation survey meter (Radex one Outdoor 55130719 NA). Radiation exposure rate in micro sievert per hour (μSvhr-1) was measured. Readings were taken by placing the detector at gonad level about 1 meter above the ground. Result showed that the average annual effective dose rate in the selected dumpsites were 0.22 mSv/yr for Lafia modern market, 0.17 mSv/yr for dumpsite op

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Manigandan, P. K., and Chandar Shekar. "Measurement of radioactivity in an elevated radiation background area of Western Ghats." Nuclear Technology and Radiation Protection 29, no. 2 (2014): 128–34. http://dx.doi.org/10.2298/ntrp1402128m.

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As part of monitoring the exposure of the general public to natural radioactivity, the activity concentration of naturally occurring radionuclides in soil samples in an elevated radiation background area of Western Ghats was determined using gamma-ray spectrometry. Average values of the activity concentration of radionuclides, outdoor terrestrial gamma dose rate, annual effective dose equivalent and radiation hazard indices from soil activity were estimated. The activity concentrations of 232Th and average outdoor terrestrial gamma dose rate were found to be higher than the world average, poss

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Esan, Deborah T., Yinka Ajiboye, Rachel I. Obed, Joshua Ojo, Mary Adeola, and Mynepalli K. Sridhar. "Measurement of Natural Radioactivity and Assessment of Radiological Hazard Indices of Soil Over the Lithologic Units in Ile-Ife Area, South-West Nigeria." Environmental Health Insights 16 (January 2022): 117863022211000. http://dx.doi.org/10.1177/11786302221100041.

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The distribution of natural radioactivity levels of 238U, 232Th, and 40K in soils overlying the 3 lithologic units within Obafemi Awolowo University, Ile-Ife, Nigeria was investigated to characterize the gamma radiation dose distribution over the lithologies and to assess the radiation hazard due to the natural radionuclides. A thallium-doped cesium iodide detector was employed to determine the activity concentrations of 238U, 232Th, and 40K in 21 soil samples. The respective average concentrations of the 3 radionuclides are 37.7, 3.2, and 245.6 Bq kg−1 for granite gneiss, 31.9, 2.8, and 241.1

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Śleziak, Monika, and Marek Duliński. "Suitability of rocks and sediments from Brzeszcze and Silesia coal mines as building materials in terms of radiological hazard." Nukleonika 64, no. 2 (2019): 65–70. http://dx.doi.org/10.2478/nuka-2019-0008.

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Abstract The isotope activity concentration of rocks and bottom sediments was evaluated based on the samples collected from sedimentation ponds and gangue repositories. Radium 226Ra, thorium 228Th and potassium 40K activities were measured by gamma spectrometry using high-purity germanium detector – HPGe 4020. The radiation effect resulting from the presence of natural radionuclides was estimated by radiological hazard indices such as f1 and f2 coefficients, radium equivalent, internal and external hazard indices and absorbed dose rate. Performed measurements and calculations have shown that t

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Abdel Gawad, Ahmed E., Khaled Ali, Hassan Eliwa, et al. "Radiological Investigation on Sediments: A Case Study of Wadi Rod Elsayalla the Southeastern Desert of Egypt." Applied Sciences 11, no. 24 (2021): 11884. http://dx.doi.org/10.3390/app112411884.

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The presence of heavy radioactive minerals in the studied granitoids from which the Wadi sediments leads to the study of the exposure to emitted gamma rays from the terrestrial radionuclides, such as 238U, 232Th, and 40K. The geological study revealed that the Wadi sediments derived from the surrounding granitoids, such as syenogranite, alkali feldspar granite, and quartz syenite. The mineral analysis confirmed that the granitoids were enriched with radioactive minerals, such as uranothorite as well as monazite, zircon, yttrocolumbite, and allanite. The mean activity of the 238U, 232Th, and 40

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Більше джерел

Частини книг з теми "Radiation Hazard Indices"

"Assessment of natural radionuclides and associated radiation indices in beach sand in Binh Thuan province, Vietnam." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.40.4.

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Naturally occurring radionuclides can be a health hazard due to their inequal distribution in the earth’s crust. Beach sand is not only valuable as a potential recreational area, with the Binh Thuan coast being a popular tourist destination, it can also be a valuable mineral deposit (for example zircon near Ham Tan) or an important raw resource for building material. To assure public safety, the assessment of natural radionuclides can be a necessary precaution, for example Guarapari or Kerala has significant natural radionuclide concentrations in monazite sand. Accordingly, 226Ra, 232Th (228Ra

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Tauro, Dr Annie, and Dr Jagajeet Prasad Singh. "INDIA'S READINESS AND APPROACH TO MANAGING COVID-19 IN ACCORDANCE WITH THE WHO HEALTH EMERGENCY AND DISASTER RISK MANAGEMENT FRAMEWORK." In HEALTHCARE HORIZONS: EXPLORING MANAGEMENT PRACTICES. KAAV PUBLICATIONS, 2023. http://dx.doi.org/10.52458/9789388996853.2023.eb.ch-15.

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Dr. Margaret Chan, Director-General of WHO in 2012 emphasized the vital importance of prioritizing prevention and preparedness in public health, stating that risk management is a fundamental responsibility. The diverse threats to global public health include communicable disease outbreaks, conflicts, exposure to radiation and chemical hazards, natural and technological disasters, and the health impacts of climate change and contamination of food and water. To effectively tackle these challenges, countries must prioritize prevention, preparedness, response, and recovery, enhancing their capabil

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Тези доповідей конференцій з теми "Radiation Hazard Indices"

Lyngkhoi, B., and P. Nongkynrih. "Assessment of natural radioactivity and radiation hazard indices in soil samples of East Khasi Hills District, Meghalaya, India." In 9TH NATIONAL CONFERENCE ON THERMOPHYSICAL PROPERTIES (NCTP-2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5031714.

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Hassan, Nur Nazihah, and Kok Siong Khoo. "Measurement of natural radioactivity and assessment of radiation hazard indices in soil samples at Pengerang, Kota Tinggi, Johor." In ADVANCING NUCLEAR RESEARCH AND ENERGY DEVELOPMENT: Proceedings of the International Nuclear Science, Technology & Engineering Conference 2013 (iNuSTEC2013). AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4866130.

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EL-Kanishy, A. "Consequence Analysis of High-Pressure Natural Gas Pipelines to Determine the Safe Zones Around the Pipelines by Using PHAST." In Mediterranean Offshore Conference. SPE, 2024. http://dx.doi.org/10.2118/223220-ms.

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Abstract Natural gas pipelines are essential for energy, but their failures can result in severe consequences. Egypt has established measures that include location classification for pipeline safety design and operation. Additionally, safe separation distances from communities are defined based on risk assessment principles. Nonetheless, a standardized method for determining these distances is lacking. This research introduces a methodology employing PHAST consequence modelling to ascertain safe separation distances, replacing the Fixed Distance/Rule-Based approach. Event Tree Analysis evaluat

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Yang, Junyi, Hugo E. Camargo, and David S. Yantek. "Sound Radiation Analysis of a Longwall Cutting Drum." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64530.

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Operators of longwall mining systems experience sound levels of 93–105 dB(A) and receive noise exposures that place them at risk of noise-induced hearing loss. To address the problem, the National Institute for Occupational Safety and Health (NIOSH*) Office of Mine Safety and Health Research (OMSHR) has conducted research to develop engineering noise controls for longwall systems. In previous field surveys, the sound radiated by the cutting drums was identified as a major hazard, especially considering their close proximity to the operators. Cutting drums are complex structures consisting of c

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Afanasyeva, K. P., A. N. Rusakovich, N. E. Kharchenko, I. D. Aleksandrov, and M. V. Aleksandrova. "GENOMIC CHANGES IN THE PROGENY OF DROSOPHILA MELANOGASTER MALES IRRADIATED BY y-RAYS." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-1-328-331.

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The results of sequencing and bioinformatics analysis of genomic changes in 9 F1 progeny of males from the isogenic line D. melanogaster irradiated by Co60 Y—rays at a dose of 40 Gy (LD85) and in 3 control samples are presented. In 9 progeny from irradiated males, a total of 46 genomic changes (32 significant and 15 mosaic de novo mutations) were found, which is equal to a frequency of 5.2 mutations/genome. The spectrum of changes included 33 deletions (17-78 000 bp in size), 4 duplications (322-1371 bp), 4 reciprocal translocations and 6 inversions in X, 2 and 3 chromosomes. In 3 studied cont

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