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Gupta, Sonal,Kumar, Raj,Satpati, Santosh K.,Sahu, Manharan L. Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.6
Uranium ingot is produced by metallothermic reduction of uranium tetrafluoride using magnesium or calcium as reductant. Presence of oxygen containing compounds viz. uranyl fluoride and uranium oxide in the starting uranium fluoride has a significant effect on the firing time, final temperature of the charge, slag-metal separation and hence the metal recovery. As reported in the literature, the maximum tolerable limit for uranyl fluoride in the UF<sub>4</sub> is 2.5 wt% and limit for uranium oxide content is in the range 2-3 wt%. No theoretical or experimental basis is available till date for these limits. Analyses have been carried out in this study to understand the effect of UO<sub>2</sub>F<sub>2</sub> concentration in the starting fluoride on the final temperature of the products and thus the reduction characteristics. UF<sub>4</sub> having uranyl fluoride concentration, less than as well as more than 2.5 wt%, have been investigated. Thermodynamic calculations have been carried out to arrive at a general expression for the final temperature attained by the products during calciothermic reduction of UF<sub>4</sub>. Finally, an upper limit for the oxygen containing impurities has been estimated using the CaO-CaF<sub>2</sub> phase diagram.
Sonal Dhingra,C M Marya,Avinash J,Puneet Gupta,Ruchi Nagpal,Nidhi Pruthi 대한예방치과학회 2012 International Journal of Clinical Preventive Denti Vol.8 No.2
Objective: To determine the prevalence, associated risk factors and unmet treatment needs of trauma to permanent anterior teeth in 12 to 15 year old school going children in urban and rural areas of Faridabad, Haryana. Methods: A cross-sectional study was carried out through clinical examination of the upper and lower permanent anterior teeth. Type III examination of 1,090 school children (rural=525, urban=565) was done. Dental trauma was classified according to Ellis and Davey (1960) criteria on a prepared examination form. Results: The prevalence of trauma was observed as 24% and 20.9% in rural and urban schoolchildren respectively; more prevalent in boys. The most common type of injury was the ‘enamel only’ fracture; falls and fights being the main cause of trauma; affecting the maxillary central incisor the most. A high level of untreated traumatized teeth observed in rural and urban schoolchildren was 96.8% and 81.4% respectively. Conclusion: The high prevalence and unmet treatment needs of dental trauma clearly illustrates importance of recognizing anterior tooth trauma as major dental public health problem.
Vibha Vaswani,Sonal Shah,Manne Lakshmipriyanka,Pushkar Waknis,Deeisha Gupta,Kunal Jain 대한구강악안면외과학회 2020 대한구강악안면외과학회지 Vol.46 No.4
Objectives: Preoperative nervousness and anxiety are frequently encountered by individuals who undergo extractions of impacted wisdom teeth. The aim of the present study is to evaluate salivary alpha amylase (sAA) level in patients for assessment of stress during third molar surgery while listening to piano music and to determine its co-relation with pain catastrophizing scale (PCS). Materials and Methods: Seven patients (four males and three females) indicated for surgical extraction of bilaterally impacted mandibular third molars were included. Pre-surgical patient assessments were completed, and three samples of saliva were collected during surgery—one at baseline, one 30 minutes after commencement of surgery, and one after suturing. Assessment was performed on both sides separately with and without piano music, and the samples were assessed for sAA level and correlated with the patient’s self-reported PCS. Results: Statistically significant results were obtained in patients who underwent surgical extraction while listening to piano music (P=0.046). The correlation of sAA level with PCS was not significant. Conclusion: Music demonstrated a beneficial effect on lowering the levels of stress and anxiety that a patient exhibits during any surgical procedure, and sAA can be a useful biomarker for similar assessments.
Raj Kumar,Sonal Gupta,Sourabh Wajhal,S.K. Satpati,M.L. Sahu 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.5
Liquid fueled molten salt reactors (MSRs) have seen renewed interest because of their inherent safetyfeatures, higher thermal efficiency and potential for efficient thorium utilisation for power generation. Thorium fluoride is one of the salts used in liquid fueled MSRs employing TheU cycle. In the presentstudy, ThF4 was prepared by hydro-fluorination of ThO2 using anhydrous HF gas. Process parameters viz. bed depth, hydrofluorination time and hydrofluorination temperature, were optimized for the preparation of ThF4 in a static bed reactor setup. The products were characterized with X-Ray diffraction andexperimental conditions for complete conversion to ThF4 were established which also corroborated withthe yield values. Hydrofluorination of ThO2 at 450 C for half an hour at a bed depth of 6 mm gave thebest result, with a yield of about 99.36% ThF4. No unconverted oxide or any other impurity was observed. Rietveld refinement was performed on the XRD data of this ThF4, and Chi2 value of 3.54 indicated goodagreement between observed and calculated profiles.
Breast Cancer Statistics and Prediction Methodology: A Systematic Review and Analysis
Dubey, Ashutosh Kumar,Gupta, Umesh,Jain, Sonal Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.10
Breast cancer is a menacing cancer, primarily affecting women. Continuous research is going on for detecting breast cancer in the early stage as the possibility of cure in early stages is bright. There are two main objectives of this current study, first establish statistics for breast cancer and second to find methodologies which can be helpful in the early stage detection of the breast cancer based on previous studies. The breast cancer statistics for incidence and mortality of the UK, US, India and Egypt were considered for this study. The finding of this study proved that the overall mortality rates of the UK and US have been improved because of awareness, improved medical technology and screening, but in case of India and Egypt the condition is less positive because of lack of awareness. The methodological findings of this study suggest a combined framework based on data mining and evolutionary algorithms. It provides a strong bridge in improving the classification and detection accuracy of breast cancer data.
Gargi Rai,Mohammad Ahmad Ansari,Sajad Ahmad Dar,Shyama Datt,Neelima Gupta,Sonal Sharma,Shafiul Haque,Vishnampettai Ganapathysubramanian Ramachandran,Arpeeta Mazumdar,Shivprakash Rudramurthy,Arunaloke 대한진단검사의학회 2018 Annals of Laboratory Medicine Vol.38 No.2
Background: Fungi, especially Aspergillus flavus, can cause chronic rhinosinusitis with nasal polyposis and modulate host innate immune components. The objective of this study was to examine the serum levels of T helper (Th) cell subset Th1, Th2, and Th17 cytokines and total IgE in patients having chronic rhinosinusitis with nasal polyposis and Aspergillus flavus infection.