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Dodge-Wan D, Viswanathan PM, Seow SQ. Micro-mapping of terrestrial gamma radiation dose rate in typical urban homes in Miri City (Sarawak, Malaysia). J Radioanal Nucl Chem 2023; 332:2177-2193. [PMID: 37193350 PMCID: PMC9994391 DOI: 10.1007/s10967-023-08838-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/14/2023] [Indexed: 03/11/2023]
Abstract
Micro-mapping of terrestrial gamma radiation dose (TGRD) at meter grid spacing in and around four urban homes in Miri City shows rates ranging from 70 to 150 nGy/h. Tiled surfaces (floors and walls) vary between properties and have a clear and significant influence on TGRD which is highest in kitchens, washrooms and toilets. Application of a single indoor value for annual effective dose (AED) may lead to underestimations of up to 30%. The AED is unlikely to exceed 0.8 mSv in homes of this type in Miri, which is within recommended guidelines.
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Affiliation(s)
- Dominique Dodge-Wan
- Department of Applied Sciences, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak Malaysia
| | - Prasanna Mohan Viswanathan
- Department of Applied Sciences, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak Malaysia
| | - Sheng Qin Seow
- Department of Applied Sciences, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009 Miri, Sarawak Malaysia
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Lamba P, Kaur DP, Raj S, Sorout J. Recycling/reuse of plastic waste as construction material for sustainable development: a review. Environ Sci Pollut Res Int 2022; 29:86156-86179. [PMID: 34655383 PMCID: PMC8520077 DOI: 10.1007/s11356-021-16980-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 10/06/2021] [Indexed: 05/22/2023]
Abstract
The exponential rise in the production of plastic and the consequential surge in plastic waste have led the scientists and researchers look out for innovative and sustainable means to reuse/recycle the plastic waste in order to reduce its negative impact on environment. Construction material, converting waste plastic into fuel, household goods, fabric and clothing are some of the sectors where waste plastic is emerging as a viable option. Out of these, construction material modified with plastic waste has garnered lot of attention. Modification of construction material with plastic waste serves a dual purpose. It reduces the amount of plastic waste going to landfills or litter and secondly lessens the use of mined construction materials, thereby mitigating the negative impact of construction industry on environment. This paper summarizes the developments with regard to the use of plastic waste as a constituent of construction material. Inclusion of plastic waste as a binder, aggregate, fine aggregate, modifier or substitute of cement and sand in the manufacturing of bricks, tiles, concrete and roads has been comprehensively reviewed. Also, the influence of addition of plastic waste on strength properties, water absorption, durability, etc. has been thoroughly discussed. The research studies considered for this review have been categorized based on whether they dealt with the use of plastic waste for bricks and tiles or in concrete for road construction.
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Affiliation(s)
- Pooja Lamba
- K. R. Mangalam University, Gurugram, Haryana, India
| | | | - Seema Raj
- K. R. Mangalam University, Gurugram, Haryana, India
| | - Jyoti Sorout
- K. R. Mangalam University, Gurugram, Haryana, India
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Haggui N, Hamidouche W, Belghith F, Masmoudi N, Nezan JF. OpenVVC Decoder Parameterized and Interfaced Synchronous Dataflow (PiSDF) Model: Tile Based Parallelism. J Signal Process Syst 2022; 95:1-13. [PMID: 36268535 PMCID: PMC9569024 DOI: 10.1007/s11265-022-01819-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 09/09/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
The emergence of the new video coding standard, Versatile Video Coding (VVC), has resulted in a 40-50% coding gain over its predecessor HEVC for the same visual quality. However, this is accompanied by a sharp increase in computational complexity. The emergence of the VVC standard and the increase in video resolution have exceeded the capacity of single-core architectures. This fact has led researchers to use multicore architectures for the implementation of video standards and to use the parallelism of these architectures for real-time applications. With the strong growth in both areas, video coding and multicore architecture, there is a great need for a design methodology that facilitates the exploration of heterogeneous multicore architectures, which automatically generates optimized code for these architectures in order to reduce time to market. In this context, this paper aims to use the methodology based on data flow modeling associated with the PREESM software. This paper shows how the software has been used to model a complete standard VVC video decoder using Parameterized and Interfaced Synchronous Dataflow (PiSDF) model. The proposed model takes advantage of the parallelism strategies of the OpenVVC decoder and in particular the tile-based parallelism. Experimental results show that the speed of the VVC decoder in PiSDF is slightly higher than the OpenVVC decoder handwritten in C/C++ languages, by up to 11% speedup on a 24-core processor. Thus, the proposed decoder outperforms the state-of-the-art dataflow decoders based on the RVC-CAL model.
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Affiliation(s)
- Naouel Haggui
- Univ Rennes, INSA Rennes, CNRS, IETR - UMR 6164, Rennes, 20 Avenue des Buttes de Coesmes, Rennes, 35700 France
- Electronics and Information Technology Laboratory (LETI) of Sfax, Road of Soukra, Sfax, 3038 Tunisia
| | - Wassim Hamidouche
- Univ Rennes, INSA Rennes, CNRS, IETR - UMR 6164, Rennes, 20 Avenue des Buttes de Coesmes, Rennes, 35700 France
| | - Fatma Belghith
- Electronics and Information Technology Laboratory (LETI) of Sfax, Road of Soukra, Sfax, 3038 Tunisia
| | - Nouri Masmoudi
- Electronics and Information Technology Laboratory (LETI) of Sfax, Road of Soukra, Sfax, 3038 Tunisia
| | - Jean-François Nezan
- Univ Rennes, INSA Rennes, CNRS, IETR - UMR 6164, Rennes, 20 Avenue des Buttes de Coesmes, Rennes, 35700 France
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Yasmin S, Khandaker MU, Nawi SNM, Sani SFA, Bradley DA, Alqahtani A, Faruque MRI. The effectiveness of ornamental building materials ( tiles) for retrospective thermoluminescence dosimetry. Appl Radiat Isot 2022; 184:110218. [PMID: 35397277 DOI: 10.1016/j.apradiso.2022.110218] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/15/2022] [Accepted: 03/28/2022] [Indexed: 11/18/2022]
Abstract
Like many other decorative building materials, tiles are one of the most precious ornamental ingredients for making a lucrative building image. It not only offers beauty and luxury but also added value by protecting/monitoring ionizing radiation. In this study, the utmost regular use of seven varieties of tile samples has been considered for retrospective thermoluminescence dosimetry. To observe the potentials of tiles for retrospective dosimetry, the major thermoluminescence properties (such as dose-response, energy dependence, self-sensitivity, relative sensitivity, glow curves, repeatability, fading, and also effective atomic number) has been investigated following the annealing - irradiation - readout cycles. Making an allowance for the various TL parameters, White Horse (Mirror Polish) tiles demonstrate suitability to be used as emergency TL dosimeter in 0.5-100 Gy dose array. Comparing the values of Zeff of these numerous tiles' samples (11.6-12.7) with TLD-200 (Zeff = 16.3), it is to be noted that tiles can be used as a suitable material for environmental radiation dosimetry. The thermoluminescent characteristics of tiles in the dose limit from 0.5 Gy to 100 Gy are reported here for the first time.
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Affiliation(s)
- Sabina Yasmin
- Department of Physics, Chittagong University of Engineering and Technology, Chattogram, Bangladesh.
| | - Mayeen Uddin Khandaker
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500, Bandar Sunway, Selangor, Malaysia.
| | - Siti Nurasiah Mat Nawi
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500, Bandar Sunway, Selangor, Malaysia; Department of Medical Sciences, School of Medical and Life Science, 47500, Bandar Sunway, Selangor, Malaysia
| | | | - D A Bradley
- Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, 47500, Bandar Sunway, Selangor, Malaysia; Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
| | - Amal Alqahtani
- Department of Basic Sciences, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, Dammam, 34212, Saudi Arabia
| | - Mohammad Rashed Iqbal Faruque
- Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Bangi, 43600, Malaysia
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Schilling KE, Gassman PW, Arenas-Amado A, Jones CS, Arnold J. Quantifying the contribution of tile drainage to basin-scale water yield using analytical and numerical models. Sci Total Environ 2019; 657:297-309. [PMID: 30543979 DOI: 10.1016/j.scitotenv.2018.11.340] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/20/2018] [Accepted: 11/23/2018] [Indexed: 06/09/2023]
Abstract
The Des Moines Lobe (DML) of north-central Iowa has been artificially drained by subsurface drains and surface ditches to provide some of the most productive agricultural land in the world. Herein we report on the use of end-member mixing analysis (EMMA) models and the numerical model Soil and Water Assessment Tool (SWAT) to quantify the contribution of tile drainage to basin-scale water yields at various scales within the 2370 km2 Boone River watershed (BRW), a subbasin within the Des Moines River watershed. EMMA and SWAT methods suggested that tile drainage provided approximately 46 to 54% of annual discharge in the Boone River and during the March to June period, accounted for a majority of flow in the river. In the BRW subbasin of Lyons Creek, approximately 66% of the annual flow was sourced from tile drainage. Within the DML region, tile drainage contributes to basin-scale water yields at scales ranging from 40 to 16,000 km2, with downstream effects diminishing with increasing watershed size. Developing a better understanding of water sources contributing to river discharge is needed if mitigation and control strategies are going to be successfully targeted to reduce downstream nutrient export.
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Affiliation(s)
- Keith E Schilling
- Iowa Geological Survey, University of Iowa, Iowa City, IA, United States of America.
| | - Philip W Gassman
- Center for Agricultural and Rural Development, Iowa State University, Ames, IA, United States of America
| | - Antonio Arenas-Amado
- IIHR-Hydroscience & Engineering, University of Iowa, Iowa City, IA, United States of America
| | - Christopher S Jones
- IIHR-Hydroscience & Engineering, University of Iowa, Iowa City, IA, United States of America
| | - Jeff Arnold
- Grassland Soil and Water Research Laboratory, USDA-ARS, Temple, TX, United States of America
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Adagunodo TA, Hammed OS, Usikalu MR, Ayara WA, Ravisankar R. Data on the radiometric survey over a kaolinitic terrain in Dahomey Basin, Nigeria. Data Brief 2018; 18:814-822. [PMID: 29900243 PMCID: PMC5996398 DOI: 10.1016/j.dib.2018.03.088] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/13/2018] [Accepted: 03/20/2018] [Indexed: 11/28/2022] Open
Abstract
This article consists the in situ data sets of activity concentrations of radionuclides (K-40, Th-232 and U-238) and gamma radiation dose rates measured about 1 m above a kaolinitic terrain in Ifonyintedo, Dahomey Basin, SW Nigeria. Nineteen (19) data points were randomly occupied at the lower axis of the kaolin field using a hand-held detector known as Super-Spec (RS 125). At each data point, the measurements were taken four times, while their averages and standard deviations were estimated in order to ensure accuracy. The radiometric survey was carried out between December, 2017 and January, 2018. The data sets were processed and analyzed via a descriptive statistics. The data can be explored further by estimating the radiological risks to the miners on the field, and to correlate the activity concentrations of the data with the activity concentrations of the tiles that are produced from the kaolin deposits in Ifonyintedo. Furthermore, the data from this article could be compared with other data acquired over a kaolinitic terrain across the globe.
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Affiliation(s)
- T A Adagunodo
- Department of Physics, Covenant University, Ota, Ogun State, Nigeria
| | - O S Hammed
- Department of Physics, Federal University of Oye Ekiti, Oye Ekiti, Ekiti State, Nigeria
| | - M R Usikalu
- Department of Physics, Covenant University, Ota, Ogun State, Nigeria
| | - W A Ayara
- Department of Physics, Covenant University, Ota, Ogun State, Nigeria
| | - R Ravisankar
- Post Graduate and Research Department of Physics, Government Arts College, Tiruvanamalai 606603, Tamilnadu, India
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Joel E, Maxwell O, Adewoyin O, Ehi-Eromosele C, Embong Z, Oyawoye F. Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria. MethodsX 2018; 5:8-19. [PMID: 29387568 PMCID: PMC5771965 DOI: 10.1016/j.mex.2017.12.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/06/2017] [Indexed: 11/22/2022] Open
Abstract
In this study, we evaluated the activity concentration of natural radionuclides (226Ra, 232Th and 40K) for fifteen (15) different brands of tile samples used for building purposes in Nigeria. The tile samples were analyzed using High purity Germanium gamma detector. The mean activity concentrations of 226Ra, 232Th, and 40K were observed to be 61.1 ± 5.5 Bq/kg, 70.2 ± 6.08 Bq/kg and 514.7 ± 59.8 Bq/kg respectively. Various hazard indices such as absorbed dose rate, external and internal hazard index, annual effective dose rate, Gamma activity Index (Iγ) and Alpha Index (Iα) were calculated. The obtained results showed that the mean radium equivalent activity (Raeq), the absorbed dose rate (D), external and internal hazard index, the annual effective dose (AEDR) equivalent, Gamma activity Index (Iγ) and Alpha Index (Iα) were: 204.42 Bq/kg, 177.61 nGyh-1, 0.55, 0.77, 0.96 mSvyr-1, 0.74 and 0.32 respectively. The average value of radium equivalent obtained in this study is less than that of the recommended value of 370 Bq/kg but the average values of the other radiological hazards for some samples are found to be slightly above international recommended values except Hex, Hin and AEDE which are within the international reference value of unity. The measured concentrations of these radioactive materials were correlated with other previous result obtained from similar tile materials used in other countries and found to be in good agreement with the international standard, however, the tiles are recommended for decoration purposes in Nigeria.
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Affiliation(s)
- E.S. Joel
- Department of Physics, Covenant University Ota, Nigeria
| | - O. Maxwell
- Department of Physics, Covenant University Ota, Nigeria
| | - O.O. Adewoyin
- Department of Physics, Covenant University Ota, Nigeria
| | | | - Z. Embong
- Faculty of Applied Science and Teknologi, Universiti Tun Hussein Onn, Malaysia Pagoh Campus. km 1, Jalan Panchor 84600, Muar, Johor, Malaysia
| | - F. Oyawoye
- Department of Geosciences, University of Lagos, Nigeria
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Bressot C, Manier N, Pagnoux C, Aguerre-Chariol O, Morgeneyer M. Environmental release of engineered nanomaterials from commercial tiles under standardized abrasion conditions. J Hazard Mater 2017; 322:276-283. [PMID: 27321746 DOI: 10.1016/j.jhazmat.2016.05.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 05/02/2016] [Accepted: 05/11/2016] [Indexed: 05/29/2023]
Abstract
The study presented here focuses on commercial antibacterial tiles whose emissivity of (nano) particles due to abrasion has yet barely been investigated. The tiles have been characterized regarding their surface properties and composition throughout their chain-of-use, i.e. from their state of commercialization until the experimental end-of-service life. In contrast to plane standard tiles, their surfaces form hilly surfaces. In the depressions, titanium dioxide is found at the surface, thus theoretically protected by the hilly areas against abrasion on the tile's surface. Furthermore, a deposition technique has been put in place by producers allowing for coating the before mentioned commercial tiles with titanium dioxide, thus being similar to those commercially available. It consists in depositing titanium dioxide on the surface, latter one allowing fixing the first. This development allows for better understanding the future options for product formulation and thus improvement with respect to particle release. The tests reveal the aerosolization from commercial antibacterial tiles of micronic and submicronic particles in the inhalable region or particles that can subjected to be released in the environment (<10μm). The aersolization of the particles from the coated tiles was found to be significantly higher compared to the non coated tiles.
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Affiliation(s)
- Christophe Bressot
- Direction de Risques Chroniques, Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
| | - Nicolas Manier
- Direction de Risques Chroniques, Unité EXES, Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
| | | | - Olivier Aguerre-Chariol
- Direction de Risques Chroniques, Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
| | - Martin Morgeneyer
- Génie de Procédés Industriels, Sorbonne Universités, Université de Technologie de Compiègne (UTC), Compiègne, France.
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