Search Results - "Sapra, B K"
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Features, reasons, and significance of radon and thoron attributable radiological dose in the indoor environment
Published in Scientific reports (21-10-2024)“…Humans receive around 50% of natural radiation dose due to 222 Rn (radon), 220 Rn (thoron) and their decay products. Several field campaigns measuring these…”
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A CFD based approach to assess the effect of environmental parameters on decay product-aerosol attachment coefficient
Published in Journal of radioanalytical and nuclear chemistry (01-09-2022)“…Attachment of decay products of radon and thoron to environmental aerosols is an important process which govern the inhalation dose. This process is…”
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3
A Computational Fluid Dynamics code for aerosol and decay-product studies in indoor environments
Published in Journal of radioanalytical and nuclear chemistry (01-12-2021)“…In the present work, Computational Fluid Dynamics (CFD) code has been used to simulate the behaviour of aerosols and decay products of 222 Rn/ 220 Rn in indoor…”
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A comparative study of radon levels in underground and surface water samples of Faridabad district of Southern Haryana, India
Published in Journal of radioanalytical and nuclear chemistry (01-03-2019)“…In the present work, radon concentrations were measured in surface and underground water samples in Faridabad District of Southern Haryana, India using an…”
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5
A Clinical Conundrum with Diagnostic and Therapeutic Challenge: a Tale of Two Disorders in One Case
Published in Journal of clinical immunology (01-11-2023)“…Living organisms are exposed to exogenous and endogenous agents that affect genomic integrity by creating DNA double strand breaks (DSBs). These breaks are…”
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Estimation of indoor radon and thoron levels along with their progeny in dwellings of Roopnagar District of Punjab, India
Published in Journal of radioanalytical and nuclear chemistry (01-12-2021)“…In the present work, an exertion has been made to assess the indoor 222 Rn and 220 Rn levels in dwellings of a Roopnagar district of Punjab, India. These…”
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A model to predict radon exhalation from walls to indoor air based on the exhalation from building material samples
Published in The Science of the total environment (01-06-2011)“…In recognition of the fact that building materials are an important source of indoor radon, second only to soil, surface radon exhalation fluxes have been…”
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A multi-stage machine learning algorithm for estimating personal dose equivalent using thermoluminescent dosimeter
Published in Machine learning: science and technology (01-03-2024)“…Abstract In the present age, marked by data-driven advancements in various fields, the importance of machine learning (ML) holds a prominent position. The…”
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Dynamics and direct sensing of radon progeny
Published in Journal of radioanalytical and nuclear chemistry (01-12-2021)“…Deposition based direct radon and thoron progeny sensors give a more accurate estimate of the inhalation dose due to radon and thoron. The dependence of…”
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10
Emission characteristics of ultrafine particles from bare and Al2O3 coated graphite for high temperature applications
Published in Scientific reports (03-09-2020)“…Owing to its exceptional properties at high temperature, graphite is used in several applications such as structural material and fuel block in high…”
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11
Betulinic Acid-Induced Cytotoxicity in Human Breast Tumor Cell Lines MCF-7 and T47D and its Modification by Tocopherol
Published in Cancer investigation (14-09-2014)“…Betulinic acid (BA) has been shown to cause apoptosis in neuroblastoma and melanoma cell lines. We evaluated the cytotoxicity of BA in two breast cancer cell…”
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Standardization of CalyculinA induced PCC assay and its advantages over Okadaic acid PCC assay in Biodosimetry applications
Published in Journal of Occupational Health (01-11-2016)“…[Abstract]: Objective: In the present study an attempt was made to estimate coefficients of dose response curves for PCC aberrations induced by CalyculinA and…”
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A study of thoron exhalation from monazite-rich beach sands of High Background Radiation Areas of Kerala and Odisha, India
Published in Environmental earth sciences (01-12-2016)“…Thoron exhalation from earth’s surface is the most important source of environmental thoron. The High Background Radiation Areas (HBRAs) of Kerala and Odisha…”
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14
Generation of high-concentration nanoparticles using glowing wire technique
Published in Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology (01-12-2014)“…A glowing metal wire-based nanoparticle aerosol generator has been developed in this work. Two metal wires of different chemical compositions have been used…”
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A WALK-IN TYPE CALIBRATION CHAMBER FACILITY FOR 222Rn MEASURING DEVICES AND INTER-COMPARISON EXERCISES
Published in Radiation protection dosimetry (31-12-2019)“…A walk-in type 222Rn calibration chamber of volume 22.7 m3, which has traceability to international standards, is established at the Centre for Advanced…”
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Use of small-angle neutron scattering to investigate modifications of internal structure in self-assembled grains of nanoparticles synthesized by spray drying
Published in Journal of colloid and interface science (01-07-2010)“…SANS reveal the modifications of particle correlation and specific surface area, in the assembled grains. Overall external spherical shape of the grains…”
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Comparison of Experimental and Modeled Absorption Enhancement by Black Carbon (BC) Cored Polydisperse Aerosols under Hygroscopic Conditions
Published in Environmental science & technology (07-08-2012)“…The quantification of the radiative impacts of light absorbing ambient black carbon (BC) particles strongly depends on accurate measurements of BC mass…”
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Establishment of in vitro Calibration Curve for 60Co-γ-rays Induced Phospho-53BP1 Foci, Rapid Biodosimetry and Initial Triage, and Comparative Evaluations With γH2AX and Cytogenetic Assays
Published in Frontiers in public health (08-08-2022)“…A rapid and reliable method for biodosimetry of populations exposed to ionizing radiation in the event of an incident or accident is crucial for initial triage…”
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Wire-mesh capped deposition sensors: Novel passive tool for coarse fraction flux estimation of radon thoron progeny in indoor environments
Published in The Science of the total environment (15-12-2010)“…Deposition-based 222Rn and 220Rn progeny sensors act as unique, passive tools for determining the long time-averaged progeny deposition fluxes in the…”
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20
Probability distribution of pixel intensities of ebt3 films and its application in the correction of uncertainty budget
Published in Journal of medical physics (01-01-2021)“…Background and Aim: Modern radiotherapy modalities, such as Intensity-Modulated Radiotherapy and Volumetric Modulated Arc Therapy involve complex dose…”
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