Готові списки джерел за темами / Annual Effective Dose Equivalent

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Добірка наукової літератури з теми "Annual Effective Dose Equivalent"

Автор: Grafiati
Опубліковано: 3 червня 2025
Оновлено: 31 липня 2025

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Статті в журналах з теми "Annual Effective Dose Equivalent"

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Muhammad, Nuruddeen Abdulkareem, Abiodun Ibrahim Olanrewaju, Mudassir Usman Muhammad, Isiaka Onaolapo Raheem, and Yakubu Ibrahim. "Assessment and evaluation of residents' excess lifetime cancer risk of federal university of Kashere, Gombe State, Nigeria." World Journal of Advanced Research and Reviews 19, no. 1 (2023): 1499–510. https://doi.org/10.5281/zenodo.10335802.

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A Study of indoor and outdoor radiation dose rate level measurements for male and female hostels at the Federal University of Kashere Hostels, Gombe State, Nigeria, has been carried out with the radiation alert smart 4 to ascertain the radiation level. The measured radiation dose rates were used to calculate the excess lifetime cancer risk and assess radiological health risks. The mean annual outdoor and indoor equivalent doses were 0.025 mSv/y. and 0.370 mSv/y. were recorded, with less than 1 mSv/y. maximum recommended limit for the general public. The mean annua
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2

Akintoye, A.O. "Determination of Natural Radioactivity Concentration Levels in Soil Samples in Odigbo Local Government Area." Pharmaceutical and Chemical Journal 4, no. 6 (2017): 53–60. https://doi.org/10.5281/zenodo.13886067.

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The aim of this study was to evaluate the level of natural radioactivity&nbsp; concentrations of <sup>238</sup>U, <sup>232</sup>Th and <sup>40</sup>K in the surface (0-5cm) soil samples collected from Odigbo in the Southwestern region of Nigeria. The surface soils were collected along the streets of this city. The activity concentrations of naturally-occurring radioactive materials in the<sup> 238</sup>U, <sup>232</sup>Th and <sup>40</sup>K were determined by means of a Sodium Iodide (NaI) gamma-ray spectrometry system detector in a low background configuration. The mean activity concentration
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3

Suresh, S., D. R. Rangaswamy, J. Sannappa, and E. Srinivasa. "Gamma Dose Rate and Annual Effective Dose Equivalent in Uttara Kannada District, Karnataka, India." Radiochemistry 63, no. 5 (2021): 672–81. http://dx.doi.org/10.1134/s1066362221050179.

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4

GÜMÜŞ, Ayla, and Hüseyin Ali YALIM. "Determination of Indoor Radon Concentrations and Annual Effective Dose Equivalents at Afyon Kocatepe University Ahmet Necdet Sezer Campus." Afyon Kocatepe University Journal of Sciences and Engineering 22, no. 4 (2022): 719–29. http://dx.doi.org/10.35414/akufemubid.1142177.

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People generally spend more than 90% of their time indoors. Exposure to radon in indoor environments can be a significant health problem. In this study, radon concentrations were measured to evaluate the health risks of employees and students in 6 faculty buildings in Afyon Kocatepe University Ahmet Necdet Sezer Campus and to calculate annual effective dose equivalents. Measurements were carried out in the Genitron AlphaGUARD PQ2000 PRO Radon Detector System which measures with active measurement method. The radon concentration values of the faculty buildings are 4.48-82.00 Bqm-3; mean radon c
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5

Abiodun, Ibrahim Olanrewaju, Nuruddeen Abdulkareem Muhammad, and Onaolapo Raheem Isiaka. "Evaluation of outdoor background ionizing radiation level around radiological sections in Federal Teaching Hospital Gombe, Gombe State Nigeria." World Journal of Advanced Research and Reviews 19, no. 2 (2023): 196–203. https://doi.org/10.5281/zenodo.10830182.

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This study presents the results of ambient radioactive radiation, radiation health hazard indices and excess lifetime cancer risk estimation around radiological sections in Federal Teaching Hospital Gombe, Gombe State, Nigeria using a well calibrated Rados-200 meters and a Global Positioning System (Garmin 765). The mean annual outdoor equivalent dose of 0.078 mSv/y. was measured. Mean annual outdoor effective doses of 0.1358 mSv/y. and 0.0950 mSv/y. were computed respectively, that were less than 1 mSv/y. maximum recommended limit for general public. The mean outdoor ELCR values of 0.3330 x10
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6

Júnior, J. A. Santos, R. S. Amaral, C. M. Silva, and R. S. C. Menezes. "Radium equivalent and annual effective dose from geological samples from Pedra – Pernambuco – Brazil." Radiation Measurements 45, no. 7 (2010): 861–64. http://dx.doi.org/10.1016/j.radmeas.2010.03.011.

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Abdulwahhab, Alkuwafi1 Idris Imneisi2*. "Assessment of Gamma Dose Rate in Outdoor Environments in Selected Locations of Awjila and Jalu, Southeast Libya." Alq J Med App Sci 5, no. 2 (2022): 611–16. https://doi.org/10.5281/zenodo.7482381.

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<strong>Aims</strong>. The primary objective of this study was to estimate the absorbed dose rate of the naturally occurring radioactive nuclides at a height of one meter above earth&#39;s surface. <strong>Methods</strong>. The outdoor radiation exposure dose rates caused by radioactivity concentrations of radionuclides in the soil have been evaluated at several locations in Awjilah and Jalu, Libya, using portable devices RADEX RD 1501 and LB 123. <strong>Results</strong>. Thirty-seven random sites were examined. The absorbed dosage rate ranged from 34.8357 to 95.7734 nGy/hr in dry air at a he
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Ahmed, Jawad Al-Naji, Awad Kadhim Shaymaa, Riyadh Abdulridha Ali, Kazem Ali Baraa, Anwar Abdul Amir Ali, and Fadel Hashem Haneen. "Radiometric Comparison of Selected Sites in the Southern and Northern Part of the Campus Section of University of Kufa." International Journal of Novel Research in Physics Chemistry & Mathematics 10, no. 3 (2023): 93–99. https://doi.org/10.5281/zenodo.10060576.

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<strong>Abstract:</strong> In the current study, the Southern and Northern parts of the campus portion of the university of Kufa were used to determine the gamma background radiation dose indoors and outdoors for the chosen region. Utilizing a portable dosimeter survey, "Inspector + (Alert model RAP RS1), S.E. international, (Inc, USA)" measurements were taken. At 51 locations, the mean equivalent dose of natural radionuclides (EADE) was calculated (21 in the south and 30 in the north),using a Geiger-Muller tube with an extremely sensitive gamma detector. The mean EADEtotal for site soil radia
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9

Ayeni, Dayo A., and Festus M. Adebiyi. "Evaluation of Natural Radioactivity and Radiation Hazards of Soils around Petroleum Products Marketing Company using Gamma Ray Spectrometry." Tanzania Journal of Science 48, no. 2 (2022): 304–12. http://dx.doi.org/10.4314/tjs.v48i2.7.

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This study aimed at evaluating natural radioactivity and radiation hazards of soils around a petroleum product marketing company due to anthropogenic influences using gamma ray spectrometry. Top soils (5 cm deep) were collected from diverse locations inside the premises of the Company using standard analytical technique, while control samples were acquired at approximately 200 m from the study area. Mean activity concentrations of the radionuclides in the test soils were 89.36 Bq/kg for 40K, 92.1 Bq/kg for 238U and 10.95 Bq/kg for 232Th, which are more than that of control samples with statist
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Mitrovic, Branislava, Dragana Todorovic, Jelena Ajtic, and Borjana Vranjes. "A review: Natural and artificial radionuclides and radiation hazard parameters in the soil of mountain regions in Serbia." Journal of Agricultural Sciences, Belgrade 65, no. 1 (2020): 1–18. http://dx.doi.org/10.2298/jas2001001m.

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This review paper discusses the content of natural (40K, 238U, 226Ra, and 232Th) and artificial (137Cs) radionuclides in the soil of the mountains of Maljen, Tara and Kopaonik in the Republic of Serbia over 2002-2015. In addition, the paper gives radiation hazard parameters, i.e., radium equivalent activity, absorbed dose rate, annual effective dose equivalent, external hazard index, annual gonadal dose equivalent, and excess lifetime cancer risk outdoors that we calculated from the obtained content of the natural radionuclides in the soil samples. We compared the parameters to previously publ
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Більше джерел

Дисертації з теми "Annual Effective Dose Equivalent"

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Gasser, Estelle. "Spectrométrie gamma au laboratoire et in situ : développements et applications environnementales." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAE007/document.

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La spectrométrie γ dose en une seule mesure tous les émetteurs γ dans un échantillon. L’auto-absorption des rayonnements γ dans des échantillons se manifeste par des pertes ou des gains d'impulsions. Pour caractériser une nouvelle géométrie de comptage, des améliorations du dispositif existant ont été apportées par des simulations MCNPX. Avec ce nouveau dispositif nous avons pu spécifier les doses absorbées et efficaces annuelles ainsi que les facteurs de conversion de dose des radioisotopes naturels pour des matériaux de construction et des prélèvements de sols. Des simulations ont montré l’i
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2

Veinot, Kenneth Guy. "An angular dependent neutron effective-dose-equivalent dosimeter." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/17595.

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Campos, Carlos Austerlitz. "Choice of personnel dosimeter location to assess the effective dose equivalent for various photon irradiations." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/12916.

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4

Henriksson, Katja. "Strålskydd för nuklearmedicinsk personal som jobbar med Tc-99m: vikten av att använda blyförkläde, sprutskydd och distansverktyg." Thesis, Malmö universitet, Fakulteten för hälsa och samhälle (HS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-25533.

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Inom nuklearmedicin exponeras personal dagligen för joniserande strålning. Det kan vara både i form av en öppen strålkälla vid uppdrag av radiofarmaka och vid bildtagning där personalen hjälper och ger stöd till patienten som blivit injicerad. Vid uppdrag av radiofarmaka används strålskydd i form av sprutskydd och distansverktyg medan blyförkläde används vid kontakt med patienter. Dessa skydd är till för att minska skador som kan uppstå vid exponering. Den svenska strålsäkerhetsmyndigheten (SSM) har föreskrivit dosgränser som inte får överskridas för att minska risken för skador. Teknetium-99m
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CORREA, FELIPE R. "Evolução da filosofia do sistema de limitação de dose e a questão das substituições "superseded"." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/27974.

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Анотація:
Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2017-11-09T11:20:17Z No. of bitstreams: 0<br>Made available in DSpace on 2017-11-09T11:20:17Z (GMT). No. of bitstreams: 0<br>Em 1958 a Comissão Internacional de Proteção Radiológica (CIPR) propôs a primeira filosofia do sistema de limitação de dose, introduzindo os Limites Anuais Máximos Permissíveis (LAMP). O grande avanço da era nuclear nas últimas décadas impôs novos paradigmas e a necessidade de atualização da filosofia em questão. O presente trabalho tem por objetivo apresentar uma análise da evolução da filosofia do siste
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6

Oliveira, Aline Sebastiane Gonçales Ramos de. "Radioatividade natural, elementos maiores e traços determinados em produtos nacionais derivados da Nicotiana tabacum L." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-13122017-105430/.

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O consumo de tabaco é uma das principais causas de doenças e morte prematuras no mundo; é a segunda droga mais consumida entre os adolescentes brasileiros, sendo considerado uma importante porta de entrada para o uso de drogas ilícitas. O Brasil é o segundo produtor mundial de tabaco e desde de 1993 destaca-se como o maior exportador. Os radionuclídeos naturais das séries do 232Th e 238U são encontrados no tabaco em baixas concentrações absorvidos diretamente do solo ou por deposição foliar. No ato de fumar ocorre a transferência desses radionuclídeos através da queima do tabaco para os tecido
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Dziri, Samir. "Etudes expérimentales et simulations Monte Carlo en spectrométrie γ : correction des effets de cascade et de matrice pour des mesures environnementales". Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-01062384.

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Les mesures fines des faibles radioactivités par la spectrométrie gamma nécessitent l'optimisation de la géométrie de détection et la connaissance du schéma de niveaux des raies gamma. Ainsi, on peut augmenter le taux de comptage et par conséquent, réduire l'incertitude statistique des pics spectraux exploités pour le calcul de l'activité des radio-isotopes en rapprochant le plus possible l'échantillon du détecteur. Cependant, l'augmentation du volume de l'échantillon demande une correction de l'auto-absorption des émissions par l'échantillon même, et le rapprochement du détecteur est à l'orig
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Predrag, Kuzmanović. "Korelacija radioloških i strukturnih karakteristika građevinskih materijala." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114752&source=NDLTD&language=en.

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U ovoj doktorskoj disertaciji predstavljena je radiolo&scaron;ka i strukturna karakterizacija građevinskih materijala koji se mogu naći u upotrebi u Srbiji. Izvr&scaron;ena je radiolo&scaron;ka karakterizaicija ukupno 348 uzoraka: granita,&nbsp; fosfogipsa,&nbsp; sirovina&nbsp; u&nbsp; keramičkoj&nbsp; industriji,&nbsp; keramičkih pločica,&nbsp; betona,&nbsp; opeke,&nbsp; maltera,&nbsp; siporeksa,&nbsp; crepa&nbsp; i&nbsp; drugihgrađevinskih materijala op&scaron;te upotrebe.&nbsp; Radiolo&scaron;ka karakterizacija je&nbsp; sprovedena&nbsp; merenjem&nbsp; koncentracija&nbsp; aktivnosti 226 Ra,2
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Chang, Yu-Cheng, and 張育誠. "The investigation on parameters of dose of computed tomography in Taiwan and assessment of population of average annual effective dose." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/95668117069699853648.

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碩士<br>中山醫學大學<br>生物醫學科學學系碩士班<br>103<br>The compound annual growth rate of CT examinations is 8.1% from 2000 to 2013 according to the Ministry of Health and Welfare in Taiwan. The frequency of CT examinations in 2013 is 2.7 times of that in 2000. Due to the rapid incensement of CT examinations, and a large contribution in the collective effective dose, it is a important and necessary to study the population effective dose caused by CT examinations in Taiwan. The database of this study includes scan information, the dose indexes and parameters of CT clinical examination, of 28 hospitals in Taiwan
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ANTONÍNOVÁ, Eva. "Radiační ochrana na oddělení nukleární medicíny." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-398920.

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The practice in the department of nuclear medicine requires the involvement of radiation protection with care of patients and occupational safety of radiation workers. Nuclear medicine involves the handling of radioactive substances that may cause external or internal irradiation of workers. The amount of the dose depends on the type of radionuclide, the amount of energy, the work performed by the worker within the department. Patients or staff may be exposed to the external or internal irradiation. The topic of this thesis is the analysis of the current state of radiation protection in the d
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Книги з теми "Annual Effective Dose Equivalent"

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Canada, Atomic Energy of. Edefis, A Code For Calculating Effective Dose Equivalent For Immersion in Contaminated Media. s.n, 1985.

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2

National Council on Radiation Protection and Measurements. Use of personal monitors to estimate effective dose equivalent and effective dose to workers for external exposure to low-LET radiation: Recommendations of the National Council on Radiation Protection and Measurements. The Council, 1995.

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3

Kendall, G. M. Committed Dose Equivalent to Selected Organs and Committed Effective Dose Equivalent from Intakes of Radionuclides. National Radiological Protection Board, 1987.

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4

Lee, Christoph I. Low-Dose Ionizing Radiation from Medical Imaging. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190223700.003.0050.

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This chapter, found in the radiation exposure from medical imaging section of the book, provides a succinct synopsis of a key study examining low-dose ionizing radiation exposure and radiation-induced cancer risks. This summary outlines the study methodology and design, major results, limitations and criticisms, related studies and additional information, and clinical implications. The study reported that a substantial proportion of the nonelderly US population is exposed to medium to very high annual effective doses from medical imaging procedures. Strategies ensuring the appropriate use of m
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Temperton, David H. Personal monitoring. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199655212.003.0008.

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Personal dose monitoring provides the important check and reassurance that radiation doses to those working with radiation are at a level that complies with dose constraints. The quantity which is relevant to external personal monitoring is the personal dose equivalent Hp(d) defined by the ICRU. Values at different depths d are equated to effective dose or doses to the skin or eye lens. This chapter contains the basic information that the radiation protection practitioner needs on personal monitoring, and the requirements for running a personal dose-monitoring service, including dosimeter cali
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Частини книг з теми "Annual Effective Dose Equivalent"

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Ozmen, Suleyman, and Bulent Topcuoglu. "Determination of natural radioactivity levels of sludges collected from wastewater treatment plants of Antalya/Türkiye." In Ninth International Symposium “Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques”. Firenze University Press, 2022. http://dx.doi.org/10.36253/979-12-215-0030-1.50.

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226Ra (10.8), 232Th (13.4) and 40K (135.7) and 137Cs (3.2) concentration levels (Bq kg-1) of the wastewater treatment plant sludges in Antalya were assessed and were found to be consistent with the literature. The absorbed gamma dose rate (D: 3.1-17.5 nGyh-1), radium equivalent activity (Raeq: 6.4-37.7 Bq kg-1), annual equivalent dose (AED: 3.8–21.4 µSv h-1), internal (Hin&lt;1.0) and external (Hex&lt;1.0) hazard indices were in the permissible limits published by IAEA. It was observed that the use of wastewater treatment sludge in agricultural areas would not create any risk in radiological t
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2

Allahverdi Pourfallah, T., A. Shabestani Monfared, H. Babapour, and M. Shahidi. "Annual Effective Dose of High Level Natural Radiation Areas of Ramsar." In IFMBE Proceedings. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-29305-4_325.

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Mwanza, Mabvuto, and Koray Ulgen. "GIS-Based Assessment of Solar Energy Harvesting Sites and Electricity Generation Potential in Zambia." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-42091-8_60-1.

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AbstractLand and environment are some of limited nature resource for any particular country and requires best use. Therefore, for sustainable energy generation it is often important to maximize land use and avoid or minimize environmental and social impact when selecting the potential locations for solar energy harvesting. This chapter presents an approach for identifying and determining the potential sites and available land areas for solar energy harvesting. Hence, the restricting and enhancing parameters that influence sites selection based on international regulation have been imposed to t
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Mwanza, Mabvuto, and Koray Ulgen. "GIS-Based Assessment of Solar Energy Harvesting Sites and Electricity Generation Potential in Zambia." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_60.

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AbstractLand and environment are some of limited nature resource for any particular country and requires best use. Therefore, for sustainable energy generation it is often important to maximize land use and avoid or minimize environmental and social impact when selecting the potential locations for solar energy harvesting. This chapter presents an approach for identifying and determining the potential sites and available land areas for solar energy harvesting. Hence, the restricting and enhancing parameters that influence sites selection based on international regulation have been imposed to t
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"BIOLOGICAL EFFECTS AND EFFECTIVE/EQUIVALENT DOSE LIMITS." In Radiation Protection in the Health Sciences. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770530_0004.

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"BIOLOGICAL EFFECTS AND EFFECTIVE/EQUIVALENT DOSE LIMITS." In Radiation Protection in the Health Sciences. WORLD SCIENTIFIC, 1995. http://dx.doi.org/10.1142/9789812830654_0004.

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Moore, Andrew, Jayne Edwards, Jodie Barden, and Henry McQuay. "Oral tramadol in postoperative pain." In Bandolier’s Little Book of Pain. Oxford University PressNew York, NY, 1992. http://dx.doi.org/10.1093/oso/9780192632470.003.0024.

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Abstract Clinical bottom line. Tramadol is an effective analgesic in postoperative pain. A single 100 mg oral dose of tramadol is equivalent to 1000 mg paracetamol. A dose of 100 mg had an NNT of 4.6 (3.6–6.4) for at least 50% pain relief over 4–6 h in patients with moderate to severe pain compared with placebo. At doses of 50 and 100 mg incidence of adverse effects (headache, nausea, vomiting, dizziness and somnolence) was similar to comparator drugs. In dental trials there was increased incidence of vomiting, nausea, dizziness and somnolence.
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Essaad Belhaj, Omaima, Hamid Boukhal, and El Mahjoub Chakir. "Monte Carlo and Medical Physics." In The Monte Carlo Methods - Recent Advances, New Perspectives and Applications. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.100121.

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The different codes based on the Monte Carlo method, allows to make simulations in the field of medical physics, so the determination of all the magnitudes of radiation protection namely the absorbed dose, the kerma, the equivalent dose, and effective, what guarantees the good planning of the experiment in order to minimize the degrees of exposure to ionizing radiation, and to strengthen the radiation protection of patients and workers in clinical environment as well as to respect the 3 principles of radiation protection ALARA (As Low As Reasonably Achievable) and which are based on: -Justific
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"Effective Dose Equivalent (mSv/MBq) and Radiation Absorbed Dose Estimates (mGy/MBq) to Adult Subjects from Selected Internally Administered Radiopharmaceuticals." In Physics in Nuclear Medicine. Elsevier, 2012. http://dx.doi.org/10.1016/b978-1-4160-5198-5.00028-9.

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"In situ dose measurements in brachytherapy and teleradiotherapy using scintillation detectors based on the tissue-equivalent Al2O3:C, Al2O3:C,Mg and heavy GAGG:Ce crystals." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.27.1.

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Conventional detectors based on ionization chambers, semiconductors or thermoluminescent materials, in principle, cannot be used to verify in vivo the radiation dose delivered during brachytherapy treatments with γ-ray sources. Analysis of existing alternatives to accurate in vivo dosimeters for brachytherapy suggests that the future of such detectors will be connected with monitor radiation dose in real time. The best approach to use for this purpose of the dosimetric materials based on scintillation crystals. The delivered radiation dose was registered using the radioluminescence response of
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Тези доповідей конференцій з теми "Annual Effective Dose Equivalent"

1

Ichoja, Andrew, Suhairul Hashim, Oludare O. Agboola, Eli Danladi, and Folashade Habibat Omotehinwa. "Annual Effective Dose Analysis and Radiological Effects of Rn-222 in Southern Benue Groundwater Sources." In 2024 International Conference on Science, Engineering and Business for Driving Sustainable Development Goals (SEB4SDG). IEEE, 2024. http://dx.doi.org/10.1109/seb4sdg60871.2024.10630049.

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2

Sandhi, Ketan Kumar, Muan Wei, Noelia Diaz, and Zoe Coull. "Cost of Corrosion in Mining Industry: Collect Quality Data for Effective Decision-Making." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00151.

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Abstract According to IMPACT Study, the annual global cost of corrosion is $2.5 trillion, equivalent to roughly 3.4% of the world's gross domestic product (GDP). Based on available studies and data, mining is an insignificant contributor to the cost of corrosion compared to other economic sectors such as infrastructure, oil and gas, and defense. However, mining operations can be highly corrosive and there have been documented catastrophic failures where corrosion has played a causal role. This raises the question: is corrosion cost properly measured and reported for mining industry? This paper
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3

Hammond, Charles. "Higher Harmonic Control ­ A Historical Perspective." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12795.

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Higher Harmonic Control (HHC) is an approach for achieving reduced helicopter vibration by controlling the vibratory rotor airloads in such a way that the fuselage excitation is minimized. This paper is a historical look at how a program aimed at helicopter vibration reduction started as an outgrowth of fixed wing flutter suppression at NASA Langley Research Center, proved the HHC concept on aeroelastically scaled wind tunnel models, and went on to demonstrate viability in full scale flight testing on the OH-6A helicopter in 1982. Following the OH-6A flight tests the helicopter research commun
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4

Li, Peng, Xiang-Wen Jiang, Qi-Jun Zhao, and Guo-Qing Zhao. "Integrated Optimization Analyses on Aerodynamic/Stealth Characteristics of Helicopter Rotor Based on Surrogate Model." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9463.

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Based on Computational Fluid Dynamics (CFD) method, electromagnetic high-frequency method and surrogate model optimization techniques, an integration design method about aerodynamic/stealth has been established for helicopter rotor. The developed integration design method is composed of three modules: 1) integrated grids generation: the moving-embedded grids for CFD solver and the blade grids for Radar Cross Section (RCS) solver are generated by solving Poisson equations and folding approach. 2) aerodynamic/stealth solver: the aerodynamic characteristics are simulated by CFD method based upon
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5

Jafir, Adeeb, Hallo Abdullah, and Ali Ahmed. "Statistics department- College of Administration and Economics - Salahaddin University - Erbil." In 3rd International Conference of Mathematics and its Applications. Salahaddin University-Erbil, 2020. http://dx.doi.org/10.31972/ticma22.06.

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Eighteen local and imported salt samples were collected in markets of Kurdistan region. The cooking salt as an essential foodstuff element in meals of population in all over the world has been examined for radioactivity assessment. Gamma ray spectroscopy of NaI (Tl) was used to obtain the spectra and measuring the specific radionuclide activities of 226Ra, 232Th and 40K in salt samples. The related radiological indices of radium equivalent (Raeq), indoor absorbed dose, indoor annual effective dose equivalent (Ein), the internal index (Hin), annual committed effective dose (Eing) and excess lif
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Echavez, R. A., J. C. Cardenas, A. A. Obando, J. P. Rueda, and E. R. Perez. "Natural Radionuclides Behavior of 238U, 232Th and 40K in the Prometeo-1 Well: A Case Study from the Middle Magdalena Valley Basin, Colombia." In SPE Annual Technical Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/220864-ms.

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Abstract The development of research about preservation of the human health and environment have taken a relevant place in several industries around the world. In Colombia, recently, has been developing some studies respect to the behavior of natural radionuclides in the hydrocarbon areas in zones of interest at the Middle Magdalena Valley Basin (MMVB), these results have been considerably variables and dependents of the multi elemental composition, type of rocks, rock-fluid interactions, among others. The Prometeo-1 Well, has showed values of radioactivity concentrations from the chains 238U,
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Mathews, Tanya Ann, Paul Azzu, Jairo Cortes, and Berna Hascakir. "Effective Extraction of a Heavy Oil Resource by an Environmentally Friendly Green Solvent: Limonene." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210138-ms.

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Abstract Global oil consumption is predicted to increase by 15% from 2021 to 2050. The increasing oil demand and decreasing conventional oil supply force us to find alternate energy supplies. The key to this problem lies with the vast untapped heavy oil and bitumen resources. In this study, we investigate the effectiveness of an environmentally friendly solvent, limonene, in recovering heavy oil. Three core flood experiments representing three different recovery methods were carried out. These include steam flooding (E1), solvent flooding (E2), and solvent-steam co-injections (E3). The green s
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Kadhim, Shaymaa Awad, Shatha F. Alhous, Haura Mohammed Abas, and Hayder H. Hussein. "Comparison of alpha equivalent dose and equivalent annual reproductive dose in flour / Iraq." In 1ST SAMARRA INTERNATIONAL CONFERENCE FOR PURE AND APPLIED SCIENCES (SICPS2021): SICPS2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0121404.

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Phaodee, Parichat, David Sabatini, and Jeffrey Harwell. "Advanced detergent formulation design by progressing from hydrophilic/lipophilic balance (HLB) to hydrophilic-lipophilic deviation (HLD)." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/qwtm2212.

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Laundry detergent products generally contain 10-30% surfactants as active ingredients and detergency is an essential worldwide activity that the global market is anticipated to reach over $200 billion by 2027 (Research and Market, 2021). While the hydrophilic-lipophilic balance (HLB) concept was initially utilized to design detergency formulations, it does not take into consideration important formulation variables (e.g., salinity, target soil, and temperature). Detergency formulation based on microemulsion phase behavior was then widely employed as an improved formulation design but is time-c
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Tankiyev, Timur, Aidyn Kartamyssov, Bolat Zhumabayev, et al. "Innovative, Cost Effective and Zero Flaring Solution to Clean-Up and Start-Up New Wells in High H2S Field in Kazakhstan. The Vital Step Forward Towards Net Zero Carbon Footprint." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210099-ms.

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Abstract Flaring has received significant attention over the past few decades and has become a major concern for many operators today. One of the contributors to hydrocarbon flaring is well clean-up operations, where traditionally oil and gas are disposed by flaring at the wellsite. This paper will share in details how integrating various technologies allowed to come up with a cost effective, zero flaring solution for well clean-up operations, that substantially reduced overall field carbon footprint. A common alternative to flaring is to store the crude in tanks and/or pump crude into product
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Звіти організацій з теми "Annual Effective Dose Equivalent"

1

Bogard, J. S., R. N. Hamm, J. C. Ashley, et al. Total effective dose equivalent associated with fixed uranium surface contamination. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/663519.

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Author, Not Given. Estimating Radiation Risk from Total Effective Dose Equivalent (TEDE) – ISCORS Technical Report. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/1374991.

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Pope, J. A method for estimating annual dose equivalent to the lung under varying radon progeny conditions. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/7009532.

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Erdal Erbatur, Meral, Ali Ozdemir, Canan Tiryaki, Serkan Erbatur, Sedat Kaya, and Osman Uzundere. Comparison of Low Doses of Lidocaine in Terms of Efficacy, Reliability, and Satisfaction in Ambulatory Hand Surgery Using Intravenous Regional Anaesthesia with Forearm Tourniquet: A Prospective, Randomized Controlled Trial. Science Repository, 2024. http://dx.doi.org/10.31487/j.acr.2024.01.01.

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Objective: This study aimed to assess efficacy, complications, and surgeon and patient satisfaction related to forearm intravenous regional anaesthesia using low doses of lidocaine in ambulatory hand surgery. Methods: This prospective, randomized and double-blind study included patients who received 25 ml (125 mg; Group 1; n = 35) and 15 ml (75 mg; Group 2; n = 35) of 0.5% lidocaine. Data recorded included sociodemographic variables, intraoperative hemodynamic findings, time to onset of sensory and motor block, intensity of motor block, duration of tourniquet tolerance, need for additional loc
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Rankin, Nicole, Deborah McGregor, Candice Donnelly, et al. Lung cancer screening using low-dose computed tomography for high risk populations: Investigating effectiveness and screening program implementation considerations: An Evidence Check rapid review brokered by the Sax Institute (www.saxinstitute.org.au) for the Cancer Institute NSW. The Sax Institute, 2019. http://dx.doi.org/10.57022/clzt5093.

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Background Lung cancer is the number one cause of cancer death worldwide.(1) It is the fifth most commonly diagnosed cancer in Australia (12,741 cases diagnosed in 2018) and the leading cause of cancer death.(2) The number of years of potential life lost to lung cancer in Australia is estimated to be 58,450, similar to that of colorectal and breast cancer combined.(3) While tobacco control strategies are most effective for disease prevention in the general population, early detection via low dose computed tomography (LDCT) screening in high-risk populations is a viable option for detecting asy
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