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radiation</title> <meta name="description" content="Search results for: mobilr radiation"> <meta name="keywords" content="mobilr radiation"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="mobilr radiation"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 1419</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: mobilr radiation</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1419</span> Effect of Acute Dose of Mobile Phone Radiation on Life Cycle ‎of the Mosquito, Culex univittatus</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fatma%20H.%20Galal">Fatma H. Galal</a>, <a href="https://publications.waset.org/abstracts/search?q=Alaaeddeen%20M.%20Seufi"> Alaaeddeen M. Seufi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the increasing usage of mobile phone, experiments were designed to investigate ‎the effect of acute dose exposure on the mosquito life cycle. 50 tubes (5 ml size) ‎containing 3 ml water and a first instar larva of the mosquito, Culex univittatus were put ‎between two mobile cell phones switched on talking mode for 4 continuous hours. A ‎control group of tubes (unexposed to radiation) were used. Larval and pupal durations ‎were calculated. Furthermore, adult emergence and sex ratio were observed for both ‎treated and control larvae. Results indicated that the employed dose of radiation reduced ‎total larval duration to about half the value of control. 1st, 2nd, 3rd and 4th larval ‎durations were reduced significantly by mobile radiation when compared to controls. ‎Meanwhile pupal duration was elongated significantly by mobile radiation when ‎compared to control. Sex ratio was significantly shifted in favor of females in the case of ‎radiated mosquitoes. Successful adult emergence was decreased significantly in the case ‎of radiated insects when compared to controls. Molecular studies to investigate the ‎effects of mobile radiation on insects and other model organisms are going on.‎ <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mosquito" title="mosquito">mosquito</a>, <a href="https://publications.waset.org/abstracts/search?q=mobilr%20radiation" title=" mobilr radiation"> mobilr radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=larval%20and%20pupal%20durations" title=" larval and pupal durations"> larval and pupal durations</a>, <a href="https://publications.waset.org/abstracts/search?q=sex%20ratio" title=" sex ratio"> sex ratio</a> </p> <a href="https://publications.waset.org/abstracts/39685/effect-of-acute-dose-of-mobile-phone-radiation-on-life-cycle-of-the-mosquito-culex-univittatus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39685.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">185</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1418</span> Status of Radiation Protection at Radiation Oncology, BPKM Cancer Hospital, Nepal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Surendra%20B.%20Chand">Surendra B. Chand</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20P.%20Chaurasia"> P. P. Chaurasia</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20P.%20%20Adhikari"> M. P. Adhikari</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20N.%20Yadav"> R. N. Yadav</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: The objective of this work was to evaluate all the safety procedures toward the radiation protection for workers in the radiation oncology department. Materials and Methods: The annual thermoluminescent dosimeters (TLDs) reports for five years of the staffs were evaluated, radiation surveys were done in the control consoles, radiotherapy machines room and waiting areas of all machines using Aloka survey meter. Results: The five years TLD reports shows that the whole body dose of the individual staffs is found within the annual dose limit except the accidental exposures. Radiation exposures in the working areas are also safe limits. Conclusion: The radiation safety practices for radiation protection are satisfactory and the radiation workers of the departments are found working within the safe limit. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=radiation%20protection" title="radiation protection">radiation protection</a>, <a href="https://publications.waset.org/abstracts/search?q=safety" title=" safety"> safety</a>, <a href="https://publications.waset.org/abstracts/search?q=ICRP" title=" ICRP"> ICRP</a>, <a href="https://publications.waset.org/abstracts/search?q=dose%20limits" title=" dose limits"> dose limits</a>, <a href="https://publications.waset.org/abstracts/search?q=TLD" title=" TLD"> TLD</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20devices" title=" radiation devices "> radiation devices </a> </p> <a href="https://publications.waset.org/abstracts/2538/status-of-radiation-protection-at-radiation-oncology-bpkm-cancer-hospital-nepal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2538.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">570</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1417</span> The Analysis of Solar Radiation Exergy in Hakkari</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hasan%20Yildizhan">Hasan Yildizhan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> According to the Solar Energy Potential Atlas (GEPA) prepared by Turkish Ministry of Energy, Hakkari is ranked first in terms of sunshine duration and it is ranked eighth in terms of solar radiation energy. Accordingly, Hakkari has a rich potential of investment with regard to solar radiation energy. The part of the solar radiation energy arriving on the surface of the earth which is transposable to useful work is determined by means of exergy analysis. In this study, the radiation exergy values for Hakkari have been calculated and evaluated by making use of the monthly average solar radiation energy and temperature values measured by General Directorate of State Meteorology. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20radiation%20exergy" title="solar radiation exergy">solar radiation exergy</a>, <a href="https://publications.waset.org/abstracts/search?q=Hakkari" title=" Hakkari"> Hakkari</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20energy%20potential" title=" solar energy potential"> solar energy potential</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkey" title=" Turkey"> Turkey</a> </p> <a href="https://publications.waset.org/abstracts/28097/the-analysis-of-solar-radiation-exergy-in-hakkari" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28097.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">712</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1416</span> Reduction of Physician's Radiation Dose during Cardiac Catheterization Procedures Using Lead-Free Sterile Radiation Shields</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20O.%20Diab">Mohammad O. Diab</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahera%20A.%20Saleh"> Sahera A. Saleh</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustapha%20M.%20Dichari"> Mustapha M. Dichari</a>, <a href="https://publications.waset.org/abstracts/search?q=Nijez%20Aloulou"> Nijez Aloulou</a>, <a href="https://publications.waset.org/abstracts/search?q=Omar%20Hamoui"> Omar Hamoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Feras%20Chehade"> Feras Chehade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study sought to evaluate the efficiency of lead-free sterile radiation shield (Radionex) in the reduction of physician's exposure dose during interventional cardiology procedures. Cardiac catheterization procedures are often associated with high radiation doses and high levels of secondary radiation emitted by the patient's body. This study compares physician exposure dose rate during cardiac catheterization procedures done through the femoral artery with sterile radiation shielding to same procedures made without the shielding. The mean operator radiation dose rate without using the shield was found to be 18.4µSv/min compared to a mean dose rate of 5.1 µSv/min when using the shield, rendering a reduction of 72.5% of radiation received by the physician. Sterile radiation shielding is consequently an effective addition to a cardiac catheterization lab radiation protection system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cardiac%20catheterization" title="cardiac catheterization">cardiac catheterization</a>, <a href="https://publications.waset.org/abstracts/search?q=physician%20exposure%20dose" title=" physician exposure dose"> physician exposure dose</a>, <a href="https://publications.waset.org/abstracts/search?q=sterile%20radiation%20shielding" title=" sterile radiation shielding"> sterile radiation shielding</a>, <a href="https://publications.waset.org/abstracts/search?q=lead-free%20sterile%20radiation%20shields" title=" lead-free sterile radiation shields"> lead-free sterile radiation shields</a> </p> <a href="https://publications.waset.org/abstracts/23700/reduction-of-physicians-radiation-dose-during-cardiac-catheterization-procedures-using-lead-free-sterile-radiation-shields" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23700.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">513</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1415</span> Solar Radiation Studies for Islamabad, Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sidra%20A.%20Shaikh">Sidra A. Shaikh</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Ahmed"> M. A. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20W.%20Akhtar"> M. W. Akhtar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Global and diffuse solar radiation studies have been carried out for Islamabad (Lat: 330 43’ N, Long: 370 71’) to access the solar potential of the area using sunshine hour data. A detailed analysis of global solar radiation values measured using several methods is presented. These values are then compared with the NASA SSE model. The variation in direct and diffuse components of solar radiation is observed in summer and winter months for Islamabad along with the clearness index KT. The diffuse solar radiation is found maximum in the month of July. Direct and beam radiation is found to be high in the month of April to June. From the results it appears that with the exception of monsoon months, July and August, solar radiation for electricity generation can be utilized very efficiently throughout the year. Finally, the mean bias error (MBE), root mean square error (RMSE) and mean percent error (MPE) for global solar radiation are also presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20potential" title="solar potential">solar potential</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20and%20diffuse%20solar%20radiation" title=" global and diffuse solar radiation"> global and diffuse solar radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamabad" title=" Islamabad"> Islamabad</a>, <a href="https://publications.waset.org/abstracts/search?q=errors" title=" errors"> errors</a> </p> <a href="https://publications.waset.org/abstracts/3867/solar-radiation-studies-for-islamabad-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3867.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">438</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1414</span> Effect of Gamma Radiation on Bromophenol Blue Dyed Films as Dosimeter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Priyanka%20R.%20Oberoi">Priyanka R. Oberoi</a>, <a href="https://publications.waset.org/abstracts/search?q=Chandra%20B.%20Maurya"> Chandra B. Maurya</a>, <a href="https://publications.waset.org/abstracts/search?q=Prakash%20A.%20Mahanwar"> Prakash A. Mahanwar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ionizing radiation can cause a drastic change in the physical and chemical properties of the material exposed. Numerous medical devices are sterilized by ionizing radiation. In the current research paper, an attempt was made to develop precise and inexpensive polymeric film dosimeter which can be used for controlling radiation dosage. Polymeric film containing (pH sensitive dye) indicator dye Bromophenol blue (BPB) was casted to check the effect of Gamma radiation on its optical and physical properties. The film was exposed to gamma radiation at 4 kGy/hr in the range of 0 to 300 kGy at an interval of 50 kGy. Release of vinyl acetate from an emulsion on high radiation reacts with the BPB fading the color of the film from blue to light blue and then finally colorless, indicating a change in pH from basic to acidic form. The change was characterized by using CIE l*a*b*, ultra-violet spectroscopy and FT-IR respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bromophenol%20blue" title="bromophenol blue">bromophenol blue</a>, <a href="https://publications.waset.org/abstracts/search?q=dosimeter" title=" dosimeter"> dosimeter</a>, <a href="https://publications.waset.org/abstracts/search?q=gamma%20radiation" title=" gamma radiation"> gamma radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=polymer" title=" polymer"> polymer</a> </p> <a href="https://publications.waset.org/abstracts/55840/effect-of-gamma-radiation-on-bromophenol-blue-dyed-films-as-dosimeter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55840.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">290</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1413</span> Estimation of Global and Diffuse Solar Radiation Studies of Islamabad, Capital City of Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Akhlaque%20Ahmed">M. Akhlaque Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Maliha%20Afshan"> Maliha Afshan</a>, <a href="https://publications.waset.org/abstracts/search?q=Adeel%20Tahir"> Adeel Tahir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Global and diffuse solar radiation studies have been carried out for the Capital city of Pakistan, Islamabad ( latitude 330 43’N and Longitude 370 71’E) to assess the solar potential of the area. The global and diffuse solar radiation were carried out using sunshine hour data for the above-mentioned area. Monthly total solar radiation is calculated through regression constants a and b through declination angle of the sun and sunshine hours and KT that is cloudiness index are used to calculate the diffuse solar radiation. Result obtained shows variation in the direct and diffuse component of solar radiation in summer and winter months for Islamabad. Diffuse solar radiation was found maximum in July, i.e., 32% whereas direct or beam radiation was found to be high in April to June, i.e., 73%. During July, August, and December, the sky was found cloudy. From the result, it appears that with the exception of monsoon month July and August the solar energy can be utilized very efficiently throughout the year in Islamabad. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=global%20radiation" title="global radiation">global radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamabad" title=" Islamabad"> Islamabad</a>, <a href="https://publications.waset.org/abstracts/search?q=diffuse%20radiation" title=" diffuse radiation"> diffuse radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=sky%20condition" title=" sky condition"> sky condition</a>, <a href="https://publications.waset.org/abstracts/search?q=sunshine%20hour" title=" sunshine hour"> sunshine hour</a> </p> <a href="https://publications.waset.org/abstracts/108989/estimation-of-global-and-diffuse-solar-radiation-studies-of-islamabad-capital-city-of-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108989.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">168</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1412</span> Radiation Hardness Materials Article Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Abou%20El-Azm">S. Abou El-Azm</a>, <a href="https://publications.waset.org/abstracts/search?q=U.%20Kruchonak"> U. Kruchonak</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Gostkin"> M. Gostkin</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Guskov"> A. Guskov</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Zhemchugov"> A. Zhemchugov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Semiconductor detectors are widely used in nuclear physics and high-energy physics experiments. The application of semiconductor detectors could be limited by their ultimate radiation resistance. The increase of radiation defects concentration leads to significant degradation of the working parameters of semiconductor detectors. The investigation of radiation defects properties in order to enhance the radiation hardness of semiconductor detectors is an important task for the successful implementation of a number of nuclear physics experiments; we presented some information about radiation hardness materials like diamond, sapphire and CdTe. Also, the results of measurements I-V characteristics, charge collection efficiency and its dependence on the bias voltage for different doses of high resistivity (GaAs: Cr) and Si at LINAC-200 accelerator and reactor IBR-2 are presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=semiconductor%20detectors" title="semiconductor detectors">semiconductor detectors</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20hardness" title=" radiation hardness"> radiation hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=GaAs" title=" GaAs"> GaAs</a>, <a href="https://publications.waset.org/abstracts/search?q=Si" title=" Si"> Si</a>, <a href="https://publications.waset.org/abstracts/search?q=CCE" title=" CCE"> CCE</a>, <a href="https://publications.waset.org/abstracts/search?q=I-V" title=" I-V"> I-V</a>, <a href="https://publications.waset.org/abstracts/search?q=C-V" title=" C-V"> C-V</a> </p> <a href="https://publications.waset.org/abstracts/146949/radiation-hardness-materials-article-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146949.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">113</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1411</span> Effects of UV-B Radiation on the Growth of Ulva Pertusa Kjellman Seedling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=HengJiang%20Cai">HengJiang Cai</a>, <a href="https://publications.waset.org/abstracts/search?q=RuiJin%20Zhang"> RuiJin Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=JinSong%20Gui"> JinSong Gui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Enhanced UV-B (280-320nm) radiation resulting from ozone depletion was one of the global environmental problems. The effects of enhanced UV-B radiation on marine macro-algae were exposed to be the greatest in shallow intertidal environments because the macro-alga was often at or above the water during low tide. Ulva pertusa Kjellman was belonged to Chlorophyta (Phylum), Ulvales (Order), Ulvaceae (Family) which was widely distributed in the western Pacific coast, and the resources were extremely rich in China. Therefore, the effects of UV-B radiation on the growth of Ulva pertusa seedling were studied in this research. Ulva pertusa seedling appearances were mainly characterized by rod shapes and tadpole shapes. The percentage of rod shapes was 90.68%±2.50%. UV-B radiation could inhibit the growth of Ulva pertusa seedling, and the growth inhibition was more significant with the increased doses of UV-B radiation treatment. The relative inhibition rates of Ulva pertusa seedling length were16.11%, 24.98%and 39.04% respectively on the 30th day at different doses (30.96, 61.92 and 123.84 Jm-2d-1) of UV-B radiation. Ulva pertusa seedling had emerged death under UV-B radiation, and the death rates were increased with the increased doses of UV-B radiation treatment. Physiology and biochemistry of Ulva pertusa seedling could be affected by UV-B radiation treatment. The SOD (superoxide dismutase) activity was increased at low-dose UV-B radiation (30.96 Jm-2d-1), while was decreased at high-dose UV-B radiation (61.92 and 123.84 Jm-2d-1). UV-B radiation could inhibit CAT (catalase) activity all the while. It speculated that the reasons for growth inhibition and death of Ulva pertusa seedling were excess ROS (reactive oxygen species), which produced by UV-B radiation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=growth" title="growth">growth</a>, <a href="https://publications.waset.org/abstracts/search?q=physiology%20and%20biochemistry" title=" physiology and biochemistry"> physiology and biochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=Ulva%20pertusa%20Kjellman" title=" Ulva pertusa Kjellman"> Ulva pertusa Kjellman</a>, <a href="https://publications.waset.org/abstracts/search?q=UV-B%20radiation" title=" UV-B radiation"> UV-B radiation</a> </p> <a href="https://publications.waset.org/abstracts/47332/effects-of-uv-b-radiation-on-the-growth-of-ulva-pertusa-kjellman-seedling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47332.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">281</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1410</span> Models to Estimate Monthly Mean Daily Global Solar Radiation on a Horizontal Surface in Alexandria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20R.%20Abdelaziz">Ahmed R. Abdelaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Zaki%20M.%20I.%20Osha"> Zaki M. I. Osha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solar radiation data are of great significance for solar energy system design. This study aims at developing and calibrating new empirical models for estimating monthly mean daily global solar radiation on a horizontal surface in Alexandria, Egypt. Day length hours, sun height, day number, and declination angle calculated data are used for this purpose. A comparison between measured and calculated values of solar radiation is carried out. It is shown that all the proposed correlations are able to predict the global solar radiation with excellent accuracy in Alexandria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20energy" title="solar energy">solar energy</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20solar%20radiation" title=" global solar radiation"> global solar radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=model" title=" model"> model</a>, <a href="https://publications.waset.org/abstracts/search?q=regression%20coefficient" title=" regression coefficient"> regression coefficient</a> </p> <a href="https://publications.waset.org/abstracts/41004/models-to-estimate-monthly-mean-daily-global-solar-radiation-on-a-horizontal-surface-in-alexandria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41004.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">405</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1409</span> Determining the Effectiveness of Radiation Shielding and Safe Time for Radiation Worker by Employing Monitoring of Accumulation Dose in the Operator Room of CT Scan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Risalatul%20Latifah">Risalatul Latifah</a>, <a href="https://publications.waset.org/abstracts/search?q=Bunawas%20Bunawas"> Bunawas Bunawas</a>, <a href="https://publications.waset.org/abstracts/search?q=Lailatul%20Muqmiroh"> Lailatul Muqmiroh</a>, <a href="https://publications.waset.org/abstracts/search?q=Anggraini%20D.%20Sensusiati"> Anggraini D. Sensusiati</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Along with the increasing frequency of the use of CT-Scan for radiodiagnostics purposes, it is necessary to study radiation protection. This study examined aspects of radiation protection of workers. This study tried using thermoluminescent dosimeter (TLD) for evaluating radiation shielding and estimating safe time for workers during CT Scan examination. Six TLDs were placed on door, wall, and window inside and outside of the CT Scan room for 1 month. By using TLD monitoring, it could be seen how much radiation was exposed in the operator room. The results showed the effective dose at door, window, and wall was respectively 0.04 mSv, 0.05 mSv, and 0.04 mSv. With these values, it could be evaluated the effectiveness of radiation shielding on doors, glass and walls were respectively 90.6%, 95.5%, and 92.2%. By applying the dose constraint and the estimation of the accumulated dose for one month, radiation workers were still safe to perform the irradiation for 180 patients. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CT%20scan%20room" title="CT scan room">CT scan room</a>, <a href="https://publications.waset.org/abstracts/search?q=TLD" title=" TLD"> TLD</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20worker" title=" radiation worker"> radiation worker</a>, <a href="https://publications.waset.org/abstracts/search?q=dose%20constraint" title=" dose constraint"> dose constraint</a> </p> <a href="https://publications.waset.org/abstracts/63239/determining-the-effectiveness-of-radiation-shielding-and-safe-time-for-radiation-worker-by-employing-monitoring-of-accumulation-dose-in-the-operator-room-of-ct-scan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63239.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1408</span> Alternative of Lead-Based Ionization Radiation Shielding Property: Epoxy-Based Composite Design</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Md.%20Belal%20Uudin%20Rabbi">Md. Belal Uudin Rabbi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sakib%20Al%20Montasir"> Sakib Al Montasir</a>, <a href="https://publications.waset.org/abstracts/search?q=Saifur%20Rahman"> Saifur Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Niger%20Nahid"> Niger Nahid</a>, <a href="https://publications.waset.org/abstracts/search?q=Esmail%20Hossain%20Emon"> Esmail Hossain Emon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The practice of radiation shielding protects against the detrimental effects of ionizing radiation. Radiation shielding depletes radiation by inserting a shield of absorbing material between any radioactive source. It is a primary concern when building several industrial fields, so using potent (high activity) radioisotopes in food preservation, cancer treatment, and particle accelerator facilities is significant. Radiation shielding is essential for radiation-emitting equipment users to reduce or mitigate radiation damage. Polymer composites (especially epoxy based) with high atomic number fillers can replace toxic Lead in ionizing radiation shielding applications because of their excellent mechanical properties, superior solvent and chemical resistance, good dimensional stability, adhesive, and less toxic. Due to being lightweight, good neutron shielding ability in almost the same order as concrete, epoxy-based radiation shielding can be the next big thing. Micro and nano-particles for the epoxy resin increase the epoxy matrix's radiation shielding property. Shielding is required to protect users of such facilities from ionizing radiation as recently, and considerable attention has been paid to polymeric composites as a radiation shielding material. This research will examine the radiation shielding performance of epoxy-based nano-WO3 reinforced composites, exploring the performance of epoxy-based nano-WO3 reinforced composites. The samples will be prepared using the direct pouring method to block radiation. The practice of radiation shielding protects against the detrimental effects of ionizing radiation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=radiation%20shielding%20materials" title="radiation shielding materials">radiation shielding materials</a>, <a href="https://publications.waset.org/abstracts/search?q=ionizing%20radiation" title=" ionizing radiation"> ionizing radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=epoxy%20resin" title=" epoxy resin"> epoxy resin</a>, <a href="https://publications.waset.org/abstracts/search?q=Tungsten%20oxide" title=" Tungsten oxide"> Tungsten oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=polymer%20composites" title=" polymer composites"> polymer composites</a> </p> <a href="https://publications.waset.org/abstracts/161275/alternative-of-lead-based-ionization-radiation-shielding-property-epoxy-based-composite-design" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161275.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">114</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1407</span> Solar Radiation Studies and Performance of Solar Panels for Three Cities of Sindh, Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Ahmed">M. A. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Sidra%20A.%20Shaikh"> Sidra A. Shaikh</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20W.%20Akhtar"> M. W. Akhtar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solar radiation on horizontal surface over three southern cities of Sindh, namely Karachi, Hyderabad and Nawabshah has been investigated to asses the feasibility of solar energy application for power generation. In the present work, measured data of bright sunshine hour of the region have been used to estimate the global and diffuse solar radiation. The regression coefficient 'a' and 'b' have been calculated using first order Angstrom type co-relation. The result obtained shows that the contribution of direct solar radiation is low and diffuse radiation is high during the monsoon months July and August for Karachi and Hyderabad. The sky remains clear from September to June, whereas for Nawabshah the global radiation remains high throughout the year. The potential of grid quality solar photovoltaic power in Karachi is estimated for 10 square meter area of solar panel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20potential%20over%20Sindh" title="solar potential over Sindh">solar potential over Sindh</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20and%20diffuse%20solar%20radiation" title=" global and diffuse solar radiation"> global and diffuse solar radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20over%20three%20cities%20of%20Sindh" title=" radiation over three cities of Sindh"> radiation over three cities of Sindh</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20panels" title=" solar panels"> solar panels</a> </p> <a href="https://publications.waset.org/abstracts/3864/solar-radiation-studies-and-performance-of-solar-panels-for-three-cities-of-sindh-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3864.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">446</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1406</span> Optimization of Radiation Therapy with a Nanotechnology Based Enzymatic Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20D.%20Esposito">R. D. Esposito</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20M.%20Barber%C3%A1"> V. M. Barberá</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Garc%C3%ADa%20Morales"> P. García Morales</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Dorado%20Rodr%C3%ADguez"> P. Dorado Rodríguez</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Sanz"> J. Sanz</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Fuentes"> M. Fuentes</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Planes%20Meseguer"> D. Planes Meseguer</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Saceda"> M. Saceda</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Fern%C3%A1ndez%20Fornos"> L. Fernández Fornos</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20P.%20Ventero"> M. P. Ventero</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Results obtained by our group on glioblastoma multiforme (GBM) primary cultures , show a dramatic potentiation of radiation effects when 2 units/ml of D-amino acid oxidase (DAO) enzyme are added, free or immobilized in magnetic nanoparticles, to irradiated samples just after the irradiation. Cell cultures were exposed to radiation doses of 7Gy and 15Gy of 6 MV photons from a clinical linear accelerator. At both doses, we observed a clear enhancing effect of radiation-induced damages due to the addition of DAO. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=D-amino%20Acid%20Oxidase%20%28DAO%29%20enzyme" title="D-amino Acid Oxidase (DAO) enzyme">D-amino Acid Oxidase (DAO) enzyme</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20particles" title=" magnetic particles"> magnetic particles</a>, <a href="https://publications.waset.org/abstracts/search?q=nanotechnology" title=" nanotechnology"> nanotechnology</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20therapy%20enhancement" title=" radiation therapy enhancement"> radiation therapy enhancement</a> </p> <a href="https://publications.waset.org/abstracts/29814/optimization-of-radiation-therapy-with-a-nanotechnology-based-enzymatic-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29814.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">523</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1405</span> Estimation of Global and Diffuse Solar Radiation Over Two Cities of Sindh, Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Ahmed">M. A. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Sidra%20A.%20Shaikh"> Sidra A. Shaikh</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20W.%20Akhtar"> M. W. Akhtar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Global and Diffuse Solar radiation on horizontal surface over two cities of Sindh, namely Jacobabad and Rohri were carried out using sunshine hour data of the area to assess the feasibility of solar energy utilization in Sindh province. The result obtained shows a high variation in direct and diffuse component of solar radiation in summer and winter months (80% direct and 20% diffuse). The contribution of diffuse solar radiation is low even in monsoon months i.e. July and August. The appearance of cloud is rare even in monsoon months. The estimated value indicates that this part of Sindh has higher solar potential and solar panels can be used for power generation. The solar energy can be utilized throughout the year in this part of Sindh, Pakistan. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20potential%20over%20Sindh" title="solar potential over Sindh">solar potential over Sindh</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20and%20diffuse%20solar%20radiation" title=" global and diffuse solar radiation"> global and diffuse solar radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20over%20two%20cities%20of%20Sindh" title=" radiation over two cities of Sindh"> radiation over two cities of Sindh</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20engineering" title=" environmental engineering"> environmental engineering</a> </p> <a href="https://publications.waset.org/abstracts/7184/estimation-of-global-and-diffuse-solar-radiation-over-two-cities-of-sindh-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7184.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">447</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1404</span> Unsteady Stagnation-Point Flow towards a Shrinking Sheet with Radiation Effect </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20M.%20Ali">F. M. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Nazar"> R. Nazar</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20M.%20Arifin"> N. M. Arifin</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Pop"> I. Pop</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the problem of unsteady stagnation-point flow and heat transfer induced by a shrinking sheet in the presence of radiation effect is studied. The transformed boundary layer equations are solved numerically by the shooting method. The influence of radiation, unsteadiness and shrinking parameters, and the Prandtl number on the reduced skin friction coefficient and the heat transfer coefficient, as well as the velocity and temperature profiles are presented and discussed in detail. It is found that dual solutions exist and the temperature distribution becomes less significant with radiation parameter. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title="heat transfer">heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20effect" title=" radiation effect"> radiation effect</a>, <a href="https://publications.waset.org/abstracts/search?q=shrinking%20sheet%20unsteady%20flow" title=" shrinking sheet unsteady flow"> shrinking sheet unsteady flow</a> </p> <a href="https://publications.waset.org/abstracts/8265/unsteady-stagnation-point-flow-towards-a-shrinking-sheet-with-radiation-effect" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8265.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">385</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1403</span> A Review of Protocols and Guidelines Addressing the Exposure of Occupants to Electromagnetic Field (EMF) Radiation in Buildings </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shabnam%20Monadizadeh">Shabnam Monadizadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Charles%20Kibert"> Charles Kibert</a>, <a href="https://publications.waset.org/abstracts/search?q=Jiaxuan%20Li"> Jiaxuan Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Janghoon%20Woo"> Janghoon Woo</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashish%20Asutosh"> Ashish Asutosh</a>, <a href="https://publications.waset.org/abstracts/search?q=Samira%20Roostaei"> Samira Roostaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Kouhirostami"> Maryam Kouhirostami</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A significant share of the technology that has emerged over the past several decades produces electromagnetic field (EMF) radiation. Communications devices, household appliances, industrial equipment, and medical devices all produce EMF radiation with a variety of frequencies, strengths, and ranges. Some EMF radiation, such as Extremely Low Frequency (ELF), Radio Frequency (RF), and the ionizing range have been shown to have harmful effects on human health. Depending on the frequency and strength of the radiation, EMF radiation can have health effects at the cellular level as well as at brain, nervous, and cardiovascular levels. Health authorities have enacted regulations locally and globally to set critical values to limit the adverse effects of EMF radiation. By introducing a more comprehensive field of EMF radiation study and practice, architects and designers can design for a safer electromagnetic (EM) indoor environment, and, as building and construction specialists, will be able to monitor and reduce EM radiation. This paper identifies the nature of EMF radiation in the built environment, the various EMF radiation sources, and its human health effects. It addresses European and US regulations for EMF radiation in buildings and provides a preliminary action plan. The challenges of developing measurement protocols for the various EMF radiation frequency ranges and determining the effects of EMF radiation on building occupants are discussed. This paper argues that a mature method for measuring EMF radiation in building environments and linking these measurements to human health impacts occupant health should be developed to provide adequate safeguards for human occupants of buildings for future research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biological%20affection" title="biological affection">biological affection</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20field" title=" electromagnetic field"> electromagnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=building%20regulation" title=" building regulation"> building regulation</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20health" title=" human health"> human health</a>, <a href="https://publications.waset.org/abstracts/search?q=healthy%20building" title=" healthy building"> healthy building</a>, <a href="https://publications.waset.org/abstracts/search?q=clean%20construction" title=" clean construction "> clean construction </a> </p> <a href="https://publications.waset.org/abstracts/129637/a-review-of-protocols-and-guidelines-addressing-the-exposure-of-occupants-to-electromagnetic-field-emf-radiation-in-buildings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129637.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">181</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1402</span> Estimation of Solar Radiation Power Using Reference Evaluation of Solar Transmittance, 2 Bands Model: Case Study of Semarang, Central Java, Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benedictus%20Asriparusa">Benedictus Asriparusa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solar radiation is a green renewable energy which has the potential to answer the needs of energy problems on the period. Knowing how to estimate the strength of the solar radiation force may be one solution of sustainable energy development in an integrated manner. Unfortunately, a fairly extensive area of Indonesia is still very low availability of solar radiation data. Therefore, we need a method to estimate the exact strength of solar radiation. In this study, author used a model Reference Evaluation of Solar Transmittance, 2 Bands (REST 2). Validation of REST 2 model has been performed in Spain, India, Colorado, Saudi Arabia, and several other areas. But it is not widely used in Indonesia. Indonesian region study area is represented by the area of Semarang, Central Java. Solar radiation values estimated using REST 2 model was then verified by field data and gives average RMSE value of 6.53%. Based on the value, it can be concluded that the model REST 2 can be used to estimate the value of solar radiation in clear sky conditions in parts of Indonesia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=estimation" title="estimation">estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20radiation%20power" title=" solar radiation power"> solar radiation power</a>, <a href="https://publications.waset.org/abstracts/search?q=REST%202" title=" REST 2"> REST 2</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20transmittance" title=" solar transmittance"> solar transmittance</a> </p> <a href="https://publications.waset.org/abstracts/10026/estimation-of-solar-radiation-power-using-reference-evaluation-of-solar-transmittance-2-bands-model-case-study-of-semarang-central-java-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10026.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">427</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1401</span> Study of the Best Algorithm to Estimate Sunshine Duration from Global Radiation on Horizontal Surface for Tropical Region</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tovondahiniriko%20Fanjirindratovo">Tovondahiniriko Fanjirindratovo</a>, <a href="https://publications.waset.org/abstracts/search?q=Olga%20Ramiarinjanahary"> Olga Ramiarinjanahary</a>, <a href="https://publications.waset.org/abstracts/search?q=Paulisimone%20Rasoavonjy"> Paulisimone Rasoavonjy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The sunshine duration, which is the sum of all the moments when the solar beam radiation is up to a minimal value, is an important parameter for climatology, tourism, agriculture and solar energy. Its measure is usually given by a pyrheliometer installed on a two-axis solar tracker. Due to the high cost of this device and the availability of global radiation on a horizontal surface, on the other hand, several studies have been done to make a correlation between global radiation and sunshine duration. Most of these studies are fitted for the northern hemisphere using a pyrheliometric database. The aim of the present work is to list and assess all the existing methods and apply them to Reunion Island, a tropical region in the southern hemisphere. Using a database of ten years, global, diffuse and beam radiation for a horizontal surface are employed in order to evaluate the uncertainty of existing algorithms for a tropical region. The methodology is based on indirect comparison because the solar beam radiation is not measured but calculated by the beam radiation on a horizontal surface and the sun elevation angle. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carpentras%20method" title="Carpentras method">Carpentras method</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20fitting" title=" data fitting"> data fitting</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20radiation" title=" global radiation"> global radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=sunshine%20duration" title=" sunshine duration"> sunshine duration</a>, <a href="https://publications.waset.org/abstracts/search?q=Slob%20and%20Monna%20algorithm" title=" Slob and Monna algorithm"> Slob and Monna algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=step%20algorithm" title=" step algorithm"> step algorithm</a> </p> <a href="https://publications.waset.org/abstracts/156033/study-of-the-best-algorithm-to-estimate-sunshine-duration-from-global-radiation-on-horizontal-surface-for-tropical-region" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156033.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">127</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1400</span> The Study of γ- Radiolysis of 1.2.4-Trichlorobenzene in Methanol Solution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samir%20Karimov">Samir Karimov</a>, <a href="https://publications.waset.org/abstracts/search?q=Elshad%20Abdullayev"> Elshad Abdullayev</a>, <a href="https://publications.waset.org/abstracts/search?q=Muslum%20Gurbanov"> Muslum Gurbanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> As one of the γ-radiolysis products of hexachlorocyclohexane and hexachlorobenzene, the study of 1.4 g/L concentrated 1,2,4-trichlorobenzene (TCB) in methanol solution has been irradiated at 0-209.3 kGy dose of γ-radiation and the results have been studied via GC-MS. At maximum radiation dose of 209.3 kGy 91.38% of TCB has converted into different organic compounds, such as 1,4-, 1,3- and 1,2- dichlorobenzenes (DCB), chlorobenzene, toluene, benzene and other chlorinated and non-chlorinated compounds. The variation of compounds formed by γ-radiolysis depends on the nature of solvent and radiation dose. One of the frequently identified radiolysis products of TCB in different organic solvents - 1,4-DCB studied quantitatively with external standard. The concentration of DCB increases by increasing absorbed radiation dose to approximately 131.8 kGy, then at higher doses with its conversion into chlorobenzene, it decreases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=%CE%B3-radiolysis" title="γ-radiolysis">γ-radiolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=chlorinated%20pesticides" title=" chlorinated pesticides"> chlorinated pesticides</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20dose" title=" radiation dose"> radiation dose</a>, <a href="https://publications.waset.org/abstracts/search?q=dechlorination" title=" dechlorination"> dechlorination</a> </p> <a href="https://publications.waset.org/abstracts/155160/the-study-of-gh-radiolysis-of-124-trichlorobenzene-in-methanol-solution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155160.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">111</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1399</span> Comparative Study of Radiation Protection in a Hospital Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lahoucine%20Zaama">Lahoucine Zaama</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanae%20Douama"> Sanae Douama</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, we present the results of a dosimetry study in a Moroccan radiology department . The results are compared with those of a similar study in France. Furthermore, it determines the coefficient of transmission of the lead sheets of different thicknesses depending on the voltage (KV) in a direct exposure. The objective of this study is to choose the thickness of the radiation means to determine the leaf sample sealed with the smallest percentage value radiation transmission, and that in the context of optimization. Thus the comparison among the studies is essential to consider conduct studies and research in this framework to achieve the goal of optimization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=radiology" title="radiology">radiology</a>, <a href="https://publications.waset.org/abstracts/search?q=dosimetry" title=" dosimetry"> dosimetry</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation" title=" radiation"> radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=dose" title=" dose"> dose</a>, <a href="https://publications.waset.org/abstracts/search?q=transmission" title=" transmission"> transmission</a> </p> <a href="https://publications.waset.org/abstracts/27351/comparative-study-of-radiation-protection-in-a-hospital-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27351.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">494</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1398</span> Thermal Radiation and Noise Safety Assessment of an Offshore Platform Flare Stack as Sudden Emergency Relief Takes Place</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lai%20Xuejiang">Lai Xuejiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Huang%20Li"> Huang Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Yi"> Yang Yi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To study the potential hazards of the sudden emergency relief of flare stack, the thermal radiation and noise calculation of flare stack is carried out by using Flaresim program 2.0. Thermal radiation and noise analysis should be considered as the sudden emergency relief takes place. According to the Flaresim software simulation results, the thermal radiation and noise meet the requirement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flare%20stack" title="flare stack">flare stack</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20radiation" title=" thermal radiation"> thermal radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=safety%20assessment" title=" safety assessment"> safety assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=noise" title=" noise"> noise</a> </p> <a href="https://publications.waset.org/abstracts/51004/thermal-radiation-and-noise-safety-assessment-of-an-offshore-platform-flare-stack-as-sudden-emergency-relief-takes-place" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51004.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">355</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1397</span> GA3C for Anomalous Radiation Source Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chia-Yi%20Liu">Chia-Yi Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Bo-Bin%20Xiao"> Bo-Bin Xiao</a>, <a href="https://publications.waset.org/abstracts/search?q=Wen-Bin%20Lin"> Wen-Bin Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Hsiang-Ning%20Wu"> Hsiang-Ning Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Liang-Hsun%20Huang"> Liang-Hsun Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to reduce the risk of radiation damage that personnel may suffer during operations in the radiation environment, the use of automated guided vehicles to assist or replace on-site personnel in the radiation environment has become a key technology and has become an important trend. In this paper, we demonstrate our proof of concept for autonomous self-learning radiation source searcher in an unknown environment without a map. The research uses GPU version of Asynchronous Advantage Actor-Critic network (GA3C) of deep reinforcement learning to search for radiation sources. The searcher network, based on GA3C architecture, has self-directed learned and improved how search the anomalous radiation source by training 1 million episodes under three simulation environments. In each episode of training, the radiation source position, the radiation source intensity, starting position, are all set randomly in one simulation environment. The input for searcher network is the fused data from a 2D laser scanner and a RGB-D camera as well as the value of the radiation detector. The output actions are the linear and angular velocities. The searcher network is trained in a simulation environment to accelerate the learning process. The well-performance searcher network is deployed to the real unmanned vehicle, Dashgo E2, which mounts LIDAR of YDLIDAR G4, RGB-D camera of Intel D455, and radiation detector made by Institute of Nuclear Energy Research. In the field experiment, the unmanned vehicle is enable to search out the radiation source of the 18.5MBq Na-22 by itself and avoid obstacles simultaneously without human interference. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=deep%20reinforcement%20learning" title="deep reinforcement learning">deep reinforcement learning</a>, <a href="https://publications.waset.org/abstracts/search?q=GA3C" title=" GA3C"> GA3C</a>, <a href="https://publications.waset.org/abstracts/search?q=source%20searching" title=" source searching"> source searching</a>, <a href="https://publications.waset.org/abstracts/search?q=source%20detection" title=" source detection"> source detection</a> </p> <a href="https://publications.waset.org/abstracts/148264/ga3c-for-anomalous-radiation-source-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148264.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">114</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1396</span> Electromagnetic Radiation Absorbers on the Basis of Fibrous Materials with the Content of Allotropic Carbon Forms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elena%20S.%20%20Belousova">Elena S. Belousova</a>, <a href="https://publications.waset.org/abstracts/search?q=Olga%20V.%20Boiprav"> Olga V. Boiprav</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A technique for incorporating particles of allotropic forms of carbon into a fibrous material has been developed. It can be used for the manufacture of composite electromagnetic radiation absorbers. The frequency characteristics of electromagnetic radiation reflection and transmission coefficients in the microwave range of absorbers on the basis of powdered carbon black, activated carbon, shungite, graphite, manufactured in accordance with the developed technique, have been studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon" title="carbon">carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=graphite" title=" graphite"> graphite</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20radiation%20absorber" title=" electromagnetic radiation absorber"> electromagnetic radiation absorber</a>, <a href="https://publications.waset.org/abstracts/search?q=shungite" title=" shungite"> shungite</a> </p> <a href="https://publications.waset.org/abstracts/121253/electromagnetic-radiation-absorbers-on-the-basis-of-fibrous-materials-with-the-content-of-allotropic-carbon-forms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/121253.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">163</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1395</span> Evaluating the Radiation Dose Involved in Interventional Radiology Procedures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kholood%20Baron">Kholood Baron</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Radiologic interventional studies use fluoroscopy imaging guidance to perform both diagnostic and therapeutic procedures. These could result in high radiation doses being delivered to the patients and also to the radiology team. This is due to the prolonged fluoroscopy time and the large number of images taken, even when dose-minimizing techniques and modern fluoroscopic tools are applied. Hence, these procedures are part of the everyday routine of interventional radiology doctors, assistant nurses, and radiographers. Thus, it is important to estimate the radiation exposure dose they received in order to give objective advice and reduce both patient and radiology team radiation exposure dose. The aim of this study was to find out the total radiation dose reaching the radiologist and the patient during an interventional procedure and to determine the impact of certain parameters on the patient dose. Method: The radiation dose was measured by TLD devices (thermoluminescent dosimeter; radiation dosimeter device). Physicians, patients, nurses, and radiographers wore TLDs during 12 interventional radiology procedures performed in two hospitals, Mubarak and Chest Hospital. This study highlights the need for interventional radiologists to be mindful of the radiation doses received by both patients and medical staff during interventional radiology procedures. The findings emphasize the impact of factors such as fluoroscopy duration and the number of images taken on the patient dose. By raising awareness and providing insights into optimizing techniques and protective measures, this research contributes to the overall goal of reducing radiation doses and ensuring the safety of patients and medical staff. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dosimetry" title="dosimetry">dosimetry</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20dose" title=" radiation dose"> radiation dose</a>, <a href="https://publications.waset.org/abstracts/search?q=interventional%20radiology%20procedures" title=" interventional radiology procedures"> interventional radiology procedures</a>, <a href="https://publications.waset.org/abstracts/search?q=patient%20radiation%20dose" title=" patient radiation dose"> patient radiation dose</a> </p> <a href="https://publications.waset.org/abstracts/174903/evaluating-the-radiation-dose-involved-in-interventional-radiology-procedures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174903.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">111</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1394</span> Empirical Model for the Estimation of Global Solar Radiation on Horizontal Surface in Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Malika%20Fekih">Malika Fekih</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdenour%20Bourabaa"> Abdenour Bourabaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafika%20Hariti"> Rafika Hariti</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Saighi"> Mohamed Saighi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In Algeria the global solar radiation and its components is not available for all locations due to which there is a requirement of using different models for the estimation of global solar radiation that use climatological parameters of the locations. Empirical constants for these models have been estimated and the results obtained have been tested statistically. The results show encouraging agreement between estimated and measured values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=global%20solar%20radiation" title="global solar radiation">global solar radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=empirical%20model" title=" empirical model"> empirical model</a>, <a href="https://publications.waset.org/abstracts/search?q=semi%20arid%20areas" title=" semi arid areas"> semi arid areas</a>, <a href="https://publications.waset.org/abstracts/search?q=climatological%20parameters" title=" climatological parameters"> climatological parameters</a> </p> <a href="https://publications.waset.org/abstracts/17957/empirical-model-for-the-estimation-of-global-solar-radiation-on-horizontal-surface-in-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17957.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">502</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1393</span> The Analysis of Personalized Low-Dose Computed Tomography Protocol Based on Cumulative Effective Radiation Dose and Cumulative Organ Dose for Patients with Breast Cancer with Regular Chest Computed Tomography Follow up</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Okhee%20Woo">Okhee Woo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: The aim of this study is to evaluate 2-year cumulative effective radiation dose and cumulative organ dose on regular follow-up computed tomography (CT) scans in patients with breast cancer and to establish personalized low-dose CT protocol. Methods and Materials: A retrospective study was performed on the patients with breast cancer who were diagnosed and managed consistently on the basis of routine breast cancer follow-up protocol between 2012-01 and 2016-06. Based on ICRP (International Commission on Radiological Protection) 103, the cumulative effective radiation doses of each patient for 2-year follow-up were analyzed using the commercial radiation management software (Radimetrics, Bayer healthcare). The personalized effective doses on each organ were analyzed in detail by the software-providing Monte Carlo simulation. Results: A total of 3822 CT scans on 490 patients was evaluated (age: 52.32±10.69). The mean scan number for each patient was 7.8±4.54. Each patient was exposed 95.54±63.24 mSv of radiation for 2 years. The cumulative CT radiation dose was significantly higher in patients with lymph node metastasis (p = 0.00). The HER-2 positive patients were more exposed to radiation compared to estrogen or progesterone receptor positive patient (p = 0.00). There was no difference in the cumulative effective radiation dose with different age groups. Conclusion: To acknowledge how much radiation exposed to a patient is a starting point of management of radiation exposure for patients with long-term CT follow-up. The precise and personalized protocol, as well as iterative reconstruction, may reduce hazard from unnecessary radiation exposure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computed%20tomography" title="computed tomography">computed tomography</a>, <a href="https://publications.waset.org/abstracts/search?q=breast%20cancer" title=" breast cancer"> breast cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=effective%20radiation%20dose" title=" effective radiation dose"> effective radiation dose</a>, <a href="https://publications.waset.org/abstracts/search?q=cumulative%20organ%20dose" title=" cumulative organ dose"> cumulative organ dose</a> </p> <a href="https://publications.waset.org/abstracts/92617/the-analysis-of-personalized-low-dose-computed-tomography-protocol-based-on-cumulative-effective-radiation-dose-and-cumulative-organ-dose-for-patients-with-breast-cancer-with-regular-chest-computed-tomography-follow-up" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92617.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">197</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1392</span> Awareness regarding Radiation Protection among the Technicians Practicing in Bharatpur, Chitwan, Nepal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jayanti%20Gyawali">Jayanti Gyawali</a>, <a href="https://publications.waset.org/abstracts/search?q=Deepak%20Adhikari"> Deepak Adhikari</a>, <a href="https://publications.waset.org/abstracts/search?q=Mukesh%20Mallik"> Mukesh Mallik</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjay%20Sah"> Sanjay Sah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Radiation is defined as an emission or transmission of energy in form of waves or particles through space or material medium. The major imaging tools used in diagnostic radiology is based on the use of ionizing radiation. A cross-sectional study was carried out during July- August, 2015 among technicians in 15 different hospitals of Bharatpur, Chitwan, Nepal to assess awareness regarding radiation protection and their current practice. The researcher was directly engaged for data collection using self-administered semi-structured questionnaire. The findings of the study are presented in socio-demographic characteristics of respondents, current practice of respondents and knowledge regarding radiation protection. The result of this study demonstrated that despite the importance of radiation and its consequent hazards, the level of knowledge among technicians is only 60.23% and their current practice is 76.84%. The difference in the mean score of knowledge and practice might have resulted due to technicians’s regular work and lack of updates. The study also revealed that there is no significant (p>0.05) difference in knowledge level of technicians practicing in different hospitals. But the mean difference in practice scores of different hospital is significant (p<0.05) i.e. i.e. the cancer hospital with large volumes of regular radiological cases and radiation therapies for cancer treatment has better practice in comparison to other hospitals. The deficiency in knowledge of technicians might alter the expected benefits, compared to the risk involved, and can cause erroneous medical diagnosis and radiation hazard. Therefore, this study emphasizes the need for all technicians to update themselves with the appropriate knowledge and current practice about ionizing and non-ionizing radiation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=technicians" title="technicians">technicians</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge" title=" knowledge"> knowledge</a>, <a href="https://publications.waset.org/abstracts/search?q=Nepal" title=" Nepal"> Nepal</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation" title=" radiation"> radiation</a> </p> <a href="https://publications.waset.org/abstracts/44864/awareness-regarding-radiation-protection-among-the-technicians-practicing-in-bharatpur-chitwan-nepal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44864.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">331</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1391</span> Occupational Cumulative Effective Doses of Radiation Workers in Hamad Medical Corporation in Qatar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Omar%20Bobes">Omar Bobes</a>, <a href="https://publications.waset.org/abstracts/search?q=Abeer%20Al-Attar"> Abeer Al-Attar</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Hassan%20Kharita"> Mohammad Hassan Kharita</a>, <a href="https://publications.waset.org/abstracts/search?q=Huda%20Al-Naemi"> Huda Al-Naemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The number of radiological examinations has increased steadily in recent years. As a result, the risk of possible radiation-induced consequential damage also increases through continuous, lifelong, and increasing exposure to ionizing radiation. Therefore, radiation dose monitoring in medicine became an essential element of medical practice. In this study, the occupational cumulative doses for radiation workers in Hamad medical corporation in Qatar have been assessed for a period of five years. The number of monitored workers selected for this study was 555 (out of a total of 1250 monitored workers) who have been working continuously -with no interruption- with ionizing radiation over the past five years from 2015 to 2019. The aim of this work is to examine the occupational groups and the activities where the higher radiation exposure occurred and in what order of magnitude. The most exposed group was the nuclear medicine technologist staff, with an average cumulative dose of 8.4 mSv. The highest individual cumulative dose was 9.8 mSv recorded for the PET-CT technologist category. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cumulative%20dose" title="cumulative dose">cumulative dose</a>, <a href="https://publications.waset.org/abstracts/search?q=effective%20dose" title=" effective dose"> effective dose</a>, <a href="https://publications.waset.org/abstracts/search?q=monitoring" title=" monitoring"> monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=occupational%20exposure" title=" occupational exposure"> occupational exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=dosimetry" title=" dosimetry"> dosimetry</a> </p> <a href="https://publications.waset.org/abstracts/133495/occupational-cumulative-effective-doses-of-radiation-workers-in-hamad-medical-corporation-in-qatar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/133495.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">243</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1390</span> Diverse Sensitivity to Ultraviolet Radiation of DNA and RNA Viruses</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nickolay%20Nosik">Nickolay Nosik</a>, <a href="https://publications.waset.org/abstracts/search?q=Dmitry%20Nosik"> Dmitry Nosik</a>, <a href="https://publications.waset.org/abstracts/search?q=Marina%20Bochkova"> Marina Bochkova</a>, <a href="https://publications.waset.org/abstracts/search?q=Nina%20Kondrashina"> Nina Kondrashina</a>, <a href="https://publications.waset.org/abstracts/search?q=Olga%20Lobach"> Olga Lobach</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The bactericidal effect of UV radiation is known for long time and widely used for inactivation of pathogens but for viruses it is not so uniform. Due to a wide variety of viruses their sensitivity to UV radiation is quite different and not quite predictable. The goal of the study was to determine the inactivation kinetics of UV radiation ( 254 nm) of the viruses of social importance (HIV), as well as test-viruses (poliovirus, adenovirus) used for the evaluation of the viral inactivation efficacy of germicides. Methods: DNA viruses- adenovirus, type 5; Herpes simplex virus (HSV), type 1, and RNA viruses–human immunodeficiency virus (HIV), type 1 and poliovirus, type 1 (Sabin strain) were obtained from State collection of viruses ( The D.I. Ivanovsky Institute of Virology). The source of UV radiation was a 15-watt low-pressure mercury vapor lamp (over 60% 254nm). The samples of 5cm2 were placed direct under the UV lamp flow (h-0.3m). Log reduction value was used as a marker for the rate of virus inactivation. Results: The data obtained indicate that poliovirus (one of the viruses most resistant to chemical germicides) and HSV are rather sensitive to UV radiation ( D90 =250-311 J/m2). Adenovirus is much more resistant to UV radiation (750 J/m2 ). The kinetics of adenovirus inactivation : 0 min- 5.0 lg TCID50, 10 min - 5,0, 15 min -4,0, 30 min – 3.5, 60 min – 1,0, 75 min -0,5 lg TCID50, 90 min –virus not detectable. HIV is most resistant to UV radiation among the studied viruses. It takes more than 4 hrs to inactivate the virus on the surface. D90 = 2000 J/m2 Conclusion: The results of the study show that there is no direct dependence between sensitivity to UV light and the size of the virion or presence\absence of the envelope of the virus. Poliovirus and adenovirus are small viruses (20-30nm poliovirus and 70-90nm adenovirus) and both are non-enveloped viruses but adenovirus 3-fold more resistant to UV radiation than poliovirus. It can be expected that viruses with more complicate structure, like Herpes virus (200nm) or HIV (80-100 nm), would be more sensitive to UV light. However, the very high resistance of HIV to UV radiation needs further investigation. The diverse resistance of the different viruses to UV radiation should be taken into the account when UV light is used to inactivate infectious viruses in hospitals and other public environments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HIV" title="HIV">HIV</a>, <a href="https://publications.waset.org/abstracts/search?q=HSV" title="HSV">HSV</a>, <a href="https://publications.waset.org/abstracts/search?q=inhibition%20of%20viruses" title=" inhibition of viruses"> inhibition of viruses</a>, <a href="https://publications.waset.org/abstracts/search?q=UV%20radiation" title=" UV radiation"> UV radiation</a> </p> <a href="https://publications.waset.org/abstracts/29580/diverse-sensitivity-to-ultraviolet-radiation-of-dna-and-rna-viruses" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29580.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 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