Utilization of Iron Ore Tailings for the Production of Fly Ash - GGBS-Based Geopolymer Bricks
fly ash; geopolymer; GGBS; Iron ore tailings slag sand; sodium hydroxide; sodium silicate
In India, million tons of manufacturing ravages such as ground-granulated blast furnace slag (GGBS), fly ash and mine tailings, are endangering. These ravages turn out to be injurious as they are landfilled close to the production sites and somewhere else. Since these manufacturing ravages include silica, alumina, calcium, etc., it is probable to formulate these as unprocessed resources to produce building substance which diminishes the carbon trace. In this circumstance, this analysis observes on utilizing iron ore tailings and slag sand as a substitution for clay or natural sand for the construction of steady geopolymer obstruct. Furthermore, in this analysis, geopolymer is utilized as a binder rather than cement. Expansion of geopolymer binder-oriented bricks with fly ash and GGBS has been implemented in this study. The analysis consists of automatic possessions of the geopolymer bricks. Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) resolution have been employed as alkaline activators. The proportion of alkaline liquid to aluminosilicate solid quotient and fraction of binder encompass foremost control on the force of brick. The bricks were casted and cured at ambient warmth. The compressive strength was tested at 7, 14 and 28 days. 2017 World Scientific Publishing Company.
Kumar R.; Das P.; Beulah M.; Arjun H.R.; Ignatius G.
Journal of Advanced Manufacturing Systems, Vol-16, No. 3, pp. 275-290.
Kumar R., Christ University, Hosur Rood, Bengaluru Karnataka, 560029, India; Das P., Christ University, Hosur Rood, Bengaluru Karnataka, 560029, India; Beulah M., Christ University, Hosur Rood, Bengaluru Karnataka, 560029, India; Arjun H.R., Christ University, Hosur Rood, Bengaluru Karnataka, 560029, India; Ignatius G., Christ University, Hosur Rood, Bengaluru Karnataka, 560029, India
Utilizing Artificial Intelligence-Powered Chatbots for Enhanced Customer Support in Online Retail
Anthropomorphism; Artificial intelligence; Chatbot; Compliance; Customer service; Social presence
In many e-commerce contexts, live chat interfaces have become popular as a way to communicate with consumers and provide real-time customer support. Conversational software agents, commonly known as Chatbots, are systems created to converse with users in natural language and are often based on artificial intelligence (AI). These systems have replaced human chat service agents in many cases. Although AI -based Chatbots have been widely used due to their time and cost savings, they have not yet met consumer expectations, which may make users less likely to comply with chatbot requests. We empirically study, through a randomized online experiment, the impact of verbal humanoid design cues and a direct approach on compliance with user requirements, based on Social Reactions and Attachment Commitment Theory. Our results show that consumers are more likely to cooperate with chatbot service response requests when there is humanity and consistency. Furthermore, the results demonstrate that social presence plays a mediating role between humanoid design cues and user compliance. 2024 IEEE.
Jayakumar M.; Soundarraj P.L.; Vishnu Priya P.M.; Gupta R.; Abbas J.K.; Naser S.J.
Proceedings of 9th International Conference on Science, Technology, Engineering and Mathematics: The Role of Emerging Technologies in Digital Transformation, ICONSTEM 2024
Institute of Electrical and Electronics Engineers Inc.
Jayakumar M., Vel Tech RangaraJan Dr. Sagunthala R&d Institute of Science And Technology, Department of Management Studies, No.42, Avadi-Vel Tech Road, Chennai, Tamil Nadu, Avadi, 62, India; Soundarraj P.L., School of Business & Management - Mba, Christ University, Lavasa Campus, Maharashtra, Pune, 412112, India; Vishnu Priya P.M., Kristu Jayanti College (Autonomous), Department of Computer Science, Kothanur, K. Narayanapura, Karnataka, Bangalore, 560077, India; Gupta R., Management, Bharati Vidyapeeth Inst. of Mgmt. And Res., Affil. To Bharati Vidyapeeth (Deemed To Be Univ.), Pune, A-4 Paschim Vihar, Rohtak Road, new Delhi, 110063, India; Abbas J.K., AL-Nisour University College, Baghdad, Iraq; Naser S.J., College of Pharmacy, National University of Science And Technology, DhiQar, Iraq
Utilizing Deep Learning Techniques for Lung Cancer Detection
Architectures; Augmentation; Convolutional; Radiographs; Segmentation
Deep learning can extract meaningful insights from complex biomedical statistics, which includes Radiographs and virtual tomosynthesis. Traits in contemporary deep studying architectures have enabled faster and more correct mastering of the functions gifted in clinical imagery, main to better accuracy and precision in medical analysis and imaging. Deep studying strategies may be used to pick out patterns within the pics which may be indicative of illnesses like lung cancer. Those ailment patterns, which include small lung nodules, can be used for early detection and prognosis of the sickness. Recent studies have employed deep learning strategies consisting of Convolutional Neural Networks (CNNs) and switch learning to come across most lung cancers in CT pictures. The first step in this manner is to generate datasets of pictures of the lungs, each from wholesome people and those with most lung cancers. Those datasets can then be used to teach a deep knowledge of a set of rules that may be optimized to it should locate those styles. Once educated, the version can be used to come across styles indicative of lung most cancers from new take a look at images with high accuracy. For further accuracy and reliability, extra up-processing techniques, along with segmentation and records augmentation, may be used. Segmentation can be used to detect a couple of lung nodules in a photo, and records augmentation can be used to lessen fake high quality outcomes. 2024 IEEE.
Madasu S.; Rolla K.J.; Patil S.C.; Gupta R.; Logeshwaran J.
2024 15th International Conference on Computing Communication and Networking Technologies, ICCCNT 2024
https://doi.org/10.1109/ICCCNT61001.2024.10724114 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85213323501&doi=10.1109%2fICCCNT61001.2024.10724114&partnerID=40&md5=0eb609ff194a8a06f3bb18910cfa7bcb
Madasu S., Microsoft, Charlotte, NC, United States; Rolla K.J., Independent Researcher, Fort Mill, SC, United States; Patil S.C., United States; Gupta R., Tejankar Hospital, MP, Ujjain, India; Logeshwaran J., CHRIST (Deemed to Be University), Department of Computer Science, Karnataka, Bengaluru, 560029, India
Utilizing Machine Learning for Advanced Natural Language Processing and Sentiment Analysis in Social Media Platforms
Machine learning (ML); Natural language processing; Random forest (RF); Sentiment analysis; Support vector machine (SVM)
Social media is increasingly regarded as one of the most abundant online resources for information gathering and knowledge exchange. Among the most widely used social media sites is Twitter available today. When attempting to comprehend the information in any unknown word-based data (such as social media), natural language processing (NLP) techniques are crucial since they help remove noise from data, identify stem words, etc. It also helps with comprehension of the sentiment or semantic contents. Using social media, we apply machine learning techniques (clustering and classification) to determine the viewpoint's polarity in the information. Several classifiers and clusters, including SVM, RF, Naive Byes, and KNN, are used to detect content on social media. Sentiment analysis is the process of automatically classifying user-generated content as neutral, negative, or positive. It is possible to utilize the text, sentence, feature, or aspect as criteria to group feelings into distinct categories. This study demonstrates the application of machine learning techniques to the analysis of emotions expressed on the Twitter network. The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.
Manoharan G.; Jyothi B.S.; Bhat R.; Acharjee P.B.; Sharma A.; Rawal P.
Smart Innovation, Systems and Technologies, Vol-390, pp. 111-125.
Springer Science and Business Media Deutschland GmbH
Manoharan G., School of Business, SR University, Telangana, Warangal, India; Jyothi B.S., CSE (DS), Rajeev Gandhi Memorial College of Engineering and Technology, Nandyala, India; Bhat R., Amity School of Communication, Amity University Kolkata, Kolkata, India; Acharjee P.B., Computer Science, CHRIST University Pune Lavasa Campus, Lavasa, India; Sharma A., Jagran Lakecity Business School, Faculty of Management and Commerce, Jagran Lakecity University, Madhya Pradesh, Bhopal, India; Rawal P., Faculty of Management and Commerce, Jagran Lakecity University, Madhya Pradesh, Bhopal, India
Utilizing Machine Learning for Sport Data Analytics in Cricket: Score Prediction and Player Categorization
Cricket analytics; Cricket prediction; Machine Learning; Player Classification; Regression and Classification; Score prediction
Cricket is a popular sport with complex gameplay and numerous variables that contribute to team performance. In recent years, sports analytics has gained significant attention, aiming to extract valuable insights from large volumes of cricket data. Cricket has many fans in India. With a strong fan following, many try to use their cricket intuition to predict the outcome of a match. A set of rules and a points system govern the game. The venue and the performance of each player greatly affect the outcome of the match. The game is difficult to predict accurately as the various components are closely related. The CRR (Current Run Rate) approach is used to predict the final score of the first innings of a cricket match. Total points are calculated by multiplying the average number of runs scored in each over by the total number of overs. For ODI cricket, these methods are useless as the game can change very quickly regardless of the current run rate. The game may be decided by 1 or 2 overs. For more accurate score predictions, a system is needed that can more accurately predict the outcome of an inning. This research paper explores the application of machine learning techniques to predict scores and classify players based on their roles in the squad. The study utilizes a comprehensive dataset comprising various attributes of cricket matches, including player statistics, match conditions, and historical performance. Linear Regression, Logistic Regression, Naive Bayes, Support Vector Machines (SVM), Decision Tree, and Random Forest regression models are employed to predict scores. Additionally, player categorization is performed using a classification approach. The results demonstrate the effectiveness of machine learning techniques in enhancing performance analysis and decision-making in the game of cricket. 2023 IEEE.
Suguna R.; Praveen Kumar Y.; Suriya Prakash J.; Neethu P.S.; Kiran S.
2023 IEEE 3rd Mysore Sub Section International Conference, MysuruCon 2023
https://doi.org/10.1109/MysuruCon59703.2023.10396955 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85184821608&doi=10.1109%2fMysuruCon59703.2023.10396955&partnerID=40&md5=69cf6c86786d9dc70ec4b7a34b10ed00
Suguna R., Vel Tech Rangarajan Dr. Sagunthala RD Institute of Science and Technology, Department of Computer Science and Engineering, Chennai, India; Praveen Kumar Y., Vidhya Jyothi Institute of Technology, Department of Computer Science and Engineering, Hyderabad, India; Suriya Prakash J., JAIN (Deemed-to-be-University), Department of Computer Science and Engineering, Bengaluru, India; Neethu P.S., CHRIST (Deemed to Be University), School of Engineering and Technology, Bengaluru, India; Kiran S., Nitte Meenakshi Institute of Technology, Department of Mathematics, Bangalore, India
Utilizing social psychology to drive financial policy solutions: Addressing female feticide and infanticide
culture; female feticide; financial solutions; gender; policy
Female feticide and infanticide, are two of the most serious problems confronting Indian society. This issue is largely caused by the identification of female fetuses through technology, which frequently results in the termination of a pregnancy. Despite the governments efforts to curb these practices, progress has been limited. There are facilities in cities for determining the gender of an unborn child. The financial difficulty of raising a girl child is a key element in the preference for male offspring. The aim of this study is to propose innovative financial solutions that the government can implement to address this longstanding and complex issue. By exploring various financial inclusion strategies, this study seeks to identify effective measures that can bring about social change and promote gender equality. 2024 by author(s).
Environment and Social Psychology, Vol-9, No. 5
https://doi.org/10.54517/esp.v9i5.2425 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186189041&doi=10.54517%2fesp.v9i5.2425&partnerID=40&md5=082fd81eeae1624dcb7c2facd4b28cb1
Farooqui M.O., Department of Public Law, College of Law, University of Sharjah, Sharjah, United Arab Emirates; Siddiquei M.I., University of the People, Pasadena, 91101, CA, United States; Kumar K., Christ (Deemed to be University) NCR Campus, Uttar Pradesh, 201003, India
UV-C and gamma radiation mediated L-DOPA production from in-vitro cultures of Mucuna pruriens (L.) DC
Cell cultures; Gamma radiation; In-vitro elicitation; L-DOPA; Mucuna pruriens; UV-C radiation
This is the first report on UV-C and gamma rays mediated in-vitro elicitation of L-DOPA from Mucuna pruriens (L.) DC. cell suspension cultures. Gamma and ultraviolet rays are used on plants to induce mutations which results in activation of defence cascades and production of secondary metabolites due to this abiotic stress. The in-vitro callus developed from 0.5mg/L picloram was suspended into liquid medium and exposed to different time intervals (0, 15, 30, 45 and 60min) of UV-C radiations. On the other hand, the seeds were directly exposed to different doses (25, 50, 100, 150 and 200Gy) of gamma radiations and these irradiated seeds were grown in-vitro from which callus and cell cultures were established. From all these in-vitro cultures, the anti-Parkinsons drug L-DOPA was quantified using HPLC. 60 and 30-minute exposure of UV-C radiations resulted in highest biomass (193.27g/L FW) and L-DOPA production (5.13mg/g DW) respectively both showing a 1.5-fold increase than the control. In gamma radiation studies, 100Gy (Gy) dose showed the highest (83%) seed germination rate, 150Gy increased the in-vitro root and shoot length, while 100Gy increased the biomass of the cell cultures. Also, 150Gy dose showed a 6.1, 2.6 and 2.4-fold increase in L-DOPA production in the in-vitro roots, in-vitro shoots, and cell suspension culture respectively when compared to the control. UV light exposure of 30min and 150Gy doses of gamma radiation showed a significant increase in L-DOPA production. The Author(s) under exclusive licence to Society for Plant Research 2024.
Bhaskar R.; Nagella P.; Madhu A.; Suriyamurthy N.; Srinatha N.
https://doi.org/10.1007/s42535-024-00842-2 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186174081&doi=10.1007%2fs42535-024-00842-2&partnerID=40&md5=6aa04ec0fa52eecebf33a240df38a9f2
Bhaskar R., Department of Life Sciences, CHRIST (Deemed to Be University), Hosur Road, Bangalore, 560 029, India; Nagella P., Department of Life Sciences, CHRIST (Deemed to Be University), Hosur Road, Bangalore, 560 029, India; Madhu A., Department of Physics, Dayananda Sagar College of Engineering, Kumarswamy layout, Bangalore, 560111, India; Suriyamurthy N., Health Physics Unit, Prototype Fast Breeder Reactor, BHAVINI, Kokilamedu, Kalpakkam, 603 102, India; Srinatha N., Department of Physics, RV Institute of Technology and Management, Bengaluru, 560 076, India
UV-Promoted Metal- and Photocatalyst-Free Direct Conversion of Aromatic Aldehydes to Nitriles
aldehydes; catalyst-free; green chemical synthesis; nitriles; UV light
Abstract: An efficient, simple, and catalyst-free UV-induced functional group transformation of aromatic aldehydes to nitriles has been reported. The developed strategy delivers various functionalized aromatic nitriles with high yields and purity. The UV irradiation activates the carbonyl group of aldehydes and leads to the formation of aldoxime intermediate, further resulting in the generation of nitriles. The striking highlights of the reported methodology are simple reaction conditions, good yields, UV-promoted transformation, and catalyst-free synthesis. Due to the above-mentioned advantages, the methodology provides a whip hand toward environmentally friendly chemical synthesis. 2022, Pleiades Publishing, Ltd.
Joy F.; Peter F.; Gokul P.C.; Nizam A.; Chinnam S.
Russian Journal of Organic Chemistry, Vol-58, No. 3, pp. 379-384.
Joy F., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Peter F., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Gokul P.C., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Nizam A., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Chinnam S., Department of Chemistry, B.M.S. College of Engineering, Bengaluru, 560019, India
UVIT Observations of the Small Magellanic Cloud: Point-source Catalog
Three fields in the outskirts of the Small Magellanic Cloud were observed by the UltraViolet Imaging Telescope (UVIT) on board AstroSat, between 2017 December 31 and 2018 January 1. The observations were carried out on a total of seven filters, three in the far-ultraviolet (FUV; 1300-1800 band and four in the near-ultraviolet (NUV; 2000-3000 band. We carried out photometry of these observations that have a spatial resolution better than 1.?5. We present here the first results of this work, which is a matched catalog of 11,241 sources detected in three FUV and four NUV wavelengths. We make the catalog available online, which would be of use to the astronomical community to address a wide variety of astrophysical problems. We provide an expression to estimate the total count rate in the full point-spread function of UVIT that also incorporates the effect of saturation. 2023. The Author(s). Published by the American Astronomical Society.
Devaraj A.; Joseph P.; Stalin C.S.; Tandon S.N.; Ghosh S.K.
All Open Access; Gold Open Access; Green Open Access
https://doi.org/10.3847/1538-4357/acba9c https://www.scopus.com/inward/record.uri?eid=2-s2.0-85151872650&doi=10.3847%2f1538-4357%2facba9c&partnerID=40&md5=aace68d8455cccc275c9454990e1dfbb
Devaraj A., Indian Institute of Astrophysics, Karnataka, Bangalore, 560034, India, Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Joseph P., Indian Institute of Astrophysics, Karnataka, Bangalore, 560034, India, Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Stalin C.S., Indian Institute of Astrophysics, Karnataka, Bangalore, 560034, India; Tandon S.N., Inter-University Center for Astronomy and Astrophysics, Maharashtra, Pune, 411007, India; Ghosh S.K., Tata Institute of Fundamental Research, Maharashtra, Mumbai, 400005, India
UVIT observations of the star-forming ring in NGC 7252: Evidence of possible AGN feedback suppressing central star formation
Galaxies: elliptical and lenticular, cD; Galaxies: evolution; Galaxies: formation; Galaxies: nuclei; Galaxies: star formation; Ultraviolet: galaxies
Context. Some post-merger galaxies are known to undergo a starburst phase that quickly depletes the gas reservoir and turns it into a red-sequence galaxy, though the details are still unclear. Aims. Here we explore the pattern of recent star formation in the central region of the post-merger galaxy NGC 7252 using high-resolution ultraviolet (UV) images from the UVIT on ASTROSAT. Methods. The UVIT images with 1.2 and 1.4 arcsec resolution in the FUV and NUV are used to construct a FUV-NUV colour map of the central region. Results. The FUV-NUV pixel colour map for this canonical post-merger galaxy reveals a blue circumnuclear ring of diameter ?10?? (3.2 kpc) with bluer patches located over the ring. Based on a comparison to single stellar population models, we show that the ring is comprised of stellar populations with ages ? 300 Myr, with embedded star-forming clumps of younger age (? 150Myr). Conclusions. The suppressed star formation in the central region, along with the recent finding of a large amount of ionised gas, leads us to speculate that this ring may be connected to past feedback from a central super-massive black hole that has ionised the hydrogen gas in the central ?4?? ?1.3 kpc. ESO 2018.
George K.; Joseph P.; Mondal C.; Devaraj A.; Subramaniam A.; Stalin C.S.; CP.; Ghosh S.K.; Hutchings J.B.; Mohan R.; Postma J.; Sankarasubramanian K.; Sreekumar P.; Tandon S.N.
All Open Access; Bronze Open Access; Green Open Access
George K., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India; Joseph P., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India, Department of Physics, Christ University, Bangalore, India; Mondal C., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India; Devaraj A., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India; Subramaniam A., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India; Stalin C.S., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India; CP., National Research Council of Canada, Herzberg Astronomy and Astrophysics Research Centre, Victoria, Canada; Ghosh S.K., National Centre for Radio Astrophysics, Pune, India, Tata Institute of Fundamental Research, Mumbai, India; Hutchings J.B., National Research Council of Canada, Herzberg Astronomy and Astrophysics Research Centre, Victoria, Canada; Mohan R., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India; Postma J., University of Calgary, Calgary, AB, Canada; Sankarasubramanian K., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India, ISRO Satellite Centre, HAL Airport Road, Bangalore, India; Sreekumar P., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India; Tandon S.N., Indian Institute of Astrophysics, Koramangala II Block, Bangalore, India, Inter-University Center for Astronomy and Astrophysics, Pune, India
UVIT view of Centaurus A: A detailed study on positive AGN feedback
galaxies: jets; galaxies: star formation; ultraviolet: galaxies
Supermassive black holes at the centre of active galactic nuclei (AGNs) produce relativistic jets that can affect the star formation characteristics of the AGN hosts. Observations in the ultraviolet (UV) band can provide an excellent view of the effect of AGN jets on star formation. Here, we present a census of star formation properties in the Northern Star-forming Region (NSR) that spans about 20 kpc of the large radio source Centaurus A hosted by the giant elliptical galaxy NGC 5128. In this region, we identified 352 UV sources associated with Cen A using new observations at an angular resolution of <1.5 arcsec observed with the Ultra-Violet Imaging Telescope (UVIT) onboard AstroSat. These observations were carried out in one far-ultraviolet (FUV; ?mean = 1481 and three near-ultraviolet (NUV; with ?mean of 2196, 2447, and 2792 respectively) bands. The star-forming sources identified in UV tend to lie in the direction of the jet of Cen A, thereby suggesting jet triggering of star formation. Separating the NSR into Outer and Inner regions, we found the stars in the Inner region to have a relatively younger age than the Outer region, suggesting that the two regions may have different star formation histories. We also provide the UVIT source catalogue in the NSR. 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
Joseph P.; Sreekumar P.; Stalin C.S.; Paul K.T.; Mondal C.; George K.; Mathew B.
Monthly Notices of the Royal Astronomical Society, Vol-516, No. 2, pp. 2300-2313.
https://doi.org/10.1093/mnras/stac2388 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85159782320&doi=10.1093%2fmnras%2fstac2388&partnerID=40&md5=a87fcadeab90f38ee6c5106aae541976
Joseph P., Department of Physics, CHRIST (Deemed to Be University), Bangalore, 560029, India, Indian Institute of Astrophysics, Bangalore, 560034, India; Sreekumar P., Indian Institute of Astrophysics, Bangalore, 560034, India, ISRO HQ, Antariksh Bhavan, Bangalore, 560094, India; Stalin C.S., Indian Institute of Astrophysics, Bangalore, 560034, India; Paul K.T., Department of Physics, CHRIST (Deemed to Be University), Bangalore, 560029, India; Mondal C., Inter-University Center for Astronomy and Astrophysics, Pune, 411007, India; George K., Faculty of Physics, Ludwig-Maximilians-Universit, Scheinerstr 1, Munich, D-81679, Germany; Mathew B., Department of Physics, CHRIST (Deemed to Be University), Bangalore, 560029, India
UVIT view of NGC 5291: Ongoing star formation in tidal dwarf galaxies at ? 0.35 kpc resolution
galaxies: dwarf; galaxies: formation; galaxies: interactions; galaxies: star formation; stars: formation; ultraviolet: galaxies
NGC 5291, an early-type galaxy surrounded by a giant H I ring, is believed to be formed from collision with another galaxy. Several star forming complexes and tidal dwarf galaxies are distributed along the collisional ring which are sites of star formation in environments where extreme dynamical effects are involved. Dynamical effects can affect the star formation properties and the spatial distribution of star forming complexes along the tidal features. To study and quantify the star formation activity in the main body and in the ring structure of the NGC 5291 system, we use high spatial resolution FUV and NUV imaging observations from the Ultraviolet Imaging Telescope onboard AstroSat. A total of 57 star-forming knots are identified to be part of this interacting system out of which 12 are new detections (star forming complexes that lie inside the H I contour) compared to the previous measurements from lower resolution UV imaging. We estimate the attenuation in UV for each of the resolved star-forming knots using the UV spectral slope ?, derived from the FUV - NUV colour. Using the extinction corrected UV fluxes, we derive the star formation rate of the resolved star forming complexes. The extinction corrected total star formation rate of this system is estimated as 1.75 0.04 M? yr-1. The comparison with dwarf galaxy populations (BCD, Sm, and dIm galaxies) in the nearby Universe shows that many of the knots in the NGC 5291 system have SFR values comparable to the SFR of BCD galaxies. 2023 The Author(s).
Rakhi R.; Santhosh G.; Joseph P.; George K.; Subramanian S.; Kavila I.; Postma J.; Duc P.-A.; CP.; Cortese L.; Ghosh S.K.; Subramaniam A.; Tandon S.; Hutchings J.; Wesley P.S.; Bharadwaj A.; Niroula N.
Monthly Notices of the Royal Astronomical Society, Vol-522, No. 1, pp. 1196-1207.
https://doi.org/10.1093/mnras/stad970 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160406844&doi=10.1093%2fmnras%2fstad970&partnerID=40&md5=c58ab3ae17263986b7a3ab46ca9eb158
Rakhi R., Department of Physics, NSS College, Pandalam Kerala, 689 501, India; Santhosh G., Department of Physics, NSS College, Pandalam Kerala, 689 501, India; Joseph P., Indian Institute of Astrophysics, Bangalore, 560034, India, Department of Physics and Electronics, CHRIST (Deemed to be University), Bangalore, 560029, India; George K., Faculty of Physics, Ludwig-Maximilians-Universit, Scheinerstr. 1, Munich, D-81679, Germany; Subramanian S., Indian Institute of Astrophysics, Bangalore, 560034, India; Kavila I., School of Pure and Applied Physics, Mahatma Gandhi University, Kerala, Kottayam, 686560, India; Postma J., Department of Physics and Astronomy, University of Calgary, 2500 University Drive NW, Calgary, T2N 1N4, AB, Canada; Duc P.-A., Universitde Strasbourg, CNRS, Observatoire astronomique de Strasbourg, UMR 7550, Strasbourg, F-67000, France; CP., Herzberg Astronomy and Astrophysics Research Centre, National Research Council of Canada, 5071 W. Saanich Road, Victoria, V9E 2E7, BC, Canada; Cortese L., International Centre for Radio Astronomy Research (ICRAR), University of Western Australia, Crawley, 6009, WA, Australia; Ghosh S.K., Tata Institute of Fundamental Research, Colaba, Mumbai, 400005, India; Subramaniam A., Indian Institute of Astrophysics, Bangalore, 560034, India; Tandon S., Inter-University Centre for Astronomy and Astrophysics, PostBag 4, Ganeshkhind, Pune, 411007, India; Hutchings J., Herzberg Astronomy and Astrophysics Research Centre, National Research Council of Canada, 5071 W. Saanich Road, Victoria, V9E 2E7, BC, Canada; Wesley P.S., Department of Physics and Electronics, CHRIST (Deemed to be University), Bangalore, 560029, India; Bharadwaj A., Department of Physics and Electronics, CHRIST (Deemed to be University), Bangalore, 560029, India; Niroula N., Department of Physics and Electronics, CHRIST (Deemed to be University), Bangalore, 560029, India
Vacuum annealed tin sulfide (SnS) thin films for solar cell applications
Absorption coefficient; AFM; Annealing; Thermal evaporation; Thin films; Tin sulfide
Thin films of tin sulfide (SnS) were grown on a glass substrate at an optimum temperature of 300 C by thermal evaporation technique. Following the deposition, films were vacuum annealed at different temperatures in the range of 100 to 300 C for 2 h. The effect of annealing temperature (Ta) on the composition, surface morphology, microstructure, optical and electrical properties was investigated. Elemental analysis showed sulfur deficiency of annealed films and the Sn to S atomic percent ratio increased from 1.0 to 1.1. XRD analysis confirmed the orthorhombic crystal structure of the films with (111) preferred orientation and phase purity. Degree of preferred orientation decreased with increase in Ta and the diffraction peaks corresponding to other planes intensified. Increasing the Ta to 300 C led to an increase in crystallite size to 129 nm. Results indicated presence of several crystallites in the grains of as-deposited films. AFM studies revealed the fragmentation of larger grain and the average grain size reduced form 265 nm for as-deposited films to 132.8 nm for the film annealed at 300 C. An apparent shift in absorption edge towards longer wavelengths is observed for films annealed at Ta > 200 C. The optical constant such as optical band gap, extinction coefficient (k), absorption coefficient (?) and refractive index (n) have been evaluated. The optical band gap of SnS thin films varied marginally with the annealing temperature and remained in between 1.331.29 eV. The extinction coefficient of the film annealed at 300 C was enhanced and is found to be 0.85 at 700 nm. At the annealing temperature of 300 C, the SnS films had enhanced electrical properties: the electrical resistivity was 7.8 ? cm, the p-type carrier concentration was up to 2.17 1016 cm?3, and the mobility was about 36.9 cm2V?1s?1. The variation of physical parameters with Ta has been explained by taking into account the crystallite size and the presented values are discussed with relevance to solar cells. 2017 Elsevier B.V.
Hegde S.S.; Kunjomana A.G.; Murahari P.; Prasad B.K.; Ramesh K.
Surfaces and Interfaces, Vol-10, pp. 78-84.
https://doi.org/10.1016/j.surfin.2017.12.003 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85038255000&doi=10.1016%2fj.surfin.2017.12.003&partnerID=40&md5=8d2e411d3668cff264b57389bdb55d02
Hegde S.S., Department of Physics, CMR Institute of Technology, Bangalore, 560037, India; Kunjomana A.G., Department of Physics, Christ University, Bangalore, 560029, India; Murahari P., Department of Physics, Indian Institute of Science, Bangalore, 560012, India, School of Physics and Astronomy, Queen Mary University of London, Mile End, London, E1 4NS, United Kingdom; Prasad B.K., Department of Physics, CMR Institute of Technology, Bangalore, 560037, India; Ramesh K., Department of Physics, Indian Institute of Science, Bangalore, 560012, India
Vacuum flask: An innovation of scientists /
Patent Number: 202141039314, Applicant: A S Nikkitta Fame. We are living in an era where we want to get things instantly. Whatever it is, we want it immediately. During a pandemic, long journey or even at your workspace you wont be able to get things in a flash. Thats when this customised flask Fames comes into the picture. Its usage isnt restricted to any specific age, it could be used by people belonging to all age group. The proposed flask has three parts as a whole. The 1 st is the cap which could also be used as a mug to pour the drink. The 2nd part is the body which is made up of metal, where you store the liquid.
https://drive.google.com/file/d/1kaQhpuVIcDF9OJnH9BH4bLcPQ4xalE9E/view
VALIDATION OF CONTINUOUS FLOW METAL PLATE REACTORS IN THE TERPENE KETONE SYNTHESIS BY ALCOHOL OXIDATION
Continuous Flow Process; Metal Plate Reactor; Oxidation Reaction; Ruthenium Catalyst; Secondary and Tertiary Alcohols
The present study elucidates the oxidation of alcohols to terpene ketones using dichloro(p-cymene) ruthenium (II) dimer catalyst by continuous flow process using a metal plate reactor. The synthesized products were separated and validated using GC, GCMS,1 H-NMR, and13 C-NMR techniques. The reaction process exhibited product yield in the range of 80-95% on a scale of 1-80 grams. Optimization studies were conducted to calibrate the reaction conditions to improve the product yield. The scope of the reaction was explored using aromatic, cyclic, and aliphatic alcohols under optimized conditions, which resulted in high yields of terpene ketones. A reaction mechanism is proposed for the oxidation of alcohols by a continuous flow process. The significant advantages of the current protocol include synthesis at mild conditions, safer handling of reagents, flexibility to tune reaction conditions, and straightforward scale-up in the range of 1-80 grams with high efficiency and reproducibility. 2024, Rasayan Journal of Chemistry, c/o Dr. Pratima Sharma. All rights reserved.
Rasayan Journal of Chemistry, Vol-17, No. 2, pp. 696-708.
Rasayan Journal of Chemistry, c/o Dr. Pratima Sharma
Imam K., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Binish C.J., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Vijayasankar A.V., Department of Sciences and Humanities, CHRIST (Deemed to be University), Bangalore, 560074, India
Validation of localised coastal wind forecasts for artisan fishers of southwestern India
Kurup P.H.; Abhilash S.; Mavath S.; Mini V.K.; Alamirew N.; Martin M.
All Open Access; Hybrid Gold Open Access
https://doi.org/10.1002/wea.4554 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85192366730&doi=10.1002%2fwea.4554&partnerID=40&md5=c63e8fce9d88cd28fbfc10a507cf7e88
Kurup P.H., Advanced Centre for Atmospheric Radar Research, Cochin University of Science and Technology, Ernakulam, India; Abhilash S., Advanced Centre for Atmospheric Radar Research, Cochin University of Science and Technology, Ernakulam, India; Mavath S., Advanced Centre for Atmospheric Radar Research, Cochin University of Science and Technology, Ernakulam, India; Mini V.K., Meteorological Centre Thiruvananthapuram, India Meteorological Department, Ministry of Earth Sciences, Thiruvananthapuram, India; Alamirew N., Department of Geography, University of Sussex, Brighton, United Kingdom; Martin M., Advanced Centre for Atmospheric Radar Research, Cochin University of Science and Technology, Ernakulam, India, Department of Geography, University of Sussex, Brighton, United Kingdom, Department of Life Sciences, Christ University, Bengaluru, India
Valorisation of coffee husk as replacement of sand in alkali-activated bricks
Alkali-activated; Bricks; Coffee husk; Sand; Valorization
The coffee industry is known to generate voluminous amount of waste during its production process. Different types of waste such as coffee hush ash and spent coffee ground, to name a few, have been extensively researched as a substitute in the construction industry. However, the utilization of coffee husk as a substitute for construction materials has seen limited exploration. In particular, there are no studies which investigate the utilization of waste coffee husk (WCH) in alkali-activated bricks. Therefore, in this research WCH was employed as a substitute to sand in alkali-activated bricks. Alkali-activated bricks were synthesized with ground granulated blast furnace slag (GGBFS), fly ash (FA), sand, and sodium silicate solution (SS). Sand was replaced with WCH at replacement rates of 0 %, 5 %, 10 %, 15 %, 20 %, and 30 % by volume. The developed bricks were evaluated for strength, density, water absorption, porosity, and efflorescence. Additionally, structural and morphological characteristics of bricks were assessed by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), and Scanning electron microscopy (SEM) analysis. The results indicate that bricks with WCH improve the compressive strength with a maximum value of 15.7 MPa, and reduce the density with a minimum value of 1509 kg/m3 for composites with 30 % WCH, respectively. The water absorption and porosity of bricks increased with incorporation of WCH due to porous structure of WCH. The physico-chemical analysis of the bricks shows effective geopolymerization in the composite system with WCH, and further the bricks with 30 % WCH depict thermal stability with insignificant weight loss at 575 ?. Finally, the composites with 30 % WCH classify as good quality bricks as per IS 1077: 1992 specifications, and this will improve practical feasibility of such materials in the construction industry. 2024 The Authors
Biswas S.; Hossiney N.; Mohan M.K.; Kumar S.L.
Case Studies in Construction Materials, Vol-21
https://doi.org/10.1016/j.cscm.2024.e03440 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85196497677&doi=10.1016%2fj.cscm.2024.e03440&partnerID=40&md5=171146346995cef14a428791ab27052d
Biswas S., Department of Civil Engineering, School of Engineering and Technology, Christ University, Bangalore, 560074, India; Hossiney N., Department of Civil Engineering, School of Engineering and Technology, Christ University, Bangalore, 560074, India; Mohan M.K., Sciences and Humanities, School of Engineering and Technology, Christ University, Bangalore, 560074, India; Kumar S.L., Department of Civil Engineering, School of Engineering and Technology, Christ University, Bangalore, 560074, India
Valorization of agro-industrial fruit peel waste to fluorescent nanocarbon sensor: Ultrasensitive detection of potentially hazardous tropane alkaloid
Agro-industrial waste; Atropine sulphate; Fluorescence sensing; Nanodiamond-like carbon; Orange peel; Valorization
Millions of tonnes of agro-industrial waste are generated each year globally, with the vast majority of it going untreated, underutilized, and disposed of by burning or landfilling, causing severe environmental distress and economic downturn. A practical solution to this global issue is to use green chemistry to convert this waste into value-added products. Accordingly, in the present study, agro-industrial orange peel waste was valorized into fluorescent nanodiamond-like carbon sensor via a green route involving hydrothermal treatment of microwave carbonized orange peel waste. The developed sensor, used for the fluorescence detection of potentially hazardous drug atropine sulfate, exhibits unique dual linearity over concentration ranges of 300 nM to 1 M and from 1 M to 10 M, as well as ultra-low sensitivity of 34.42 nM and 356.46 nM, respectively. Additionally, the sensor demonstrates excellent reproducibility, high stability, and satisfactory recovery when used to identify and quantify atropine sulfate in biological samples and commercially available pharmaceuticals, indicating promising multidisciplinary applications. [Figure not available: see fulltext.] 2021, Higher Education Press.
Frontiers of Environmental Science and Engineering, Vol-16, No. 3
Ramya A.V., Nanocarbon Research Group, Materials Science Research Laboratory, Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India; Balachandran M., Nanocarbon Research Group, Materials Science Research Laboratory, Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India
Valorization of bovine tannery fleshing waste as a fish meal replacer: a conceivable green approach
Bovine tannery fleshing waste; Fermentation; Fish meal replacer; Resource recovery; Solid waste management
The study intended to utilize bovine tannery fleshing (BTF) a significant contributor of solid wastes in leather industries, in its unhydrolyzed form (raw fleshing flour [RFF]) as well as in fermented form (fermented fleshing flour [FFF]) as fish meal (FM) replacer in formulated aqua feeds. In line with this, experimental diets were formulated, characterized, and evaluated for their virtue. Improvement in the physical quality of diets was achieved with FFF incorporation, enabling better pelletability, palatability, and feed texture. As the formulated diets were of sinking type, feeding trials on column as well as bottom feeders were concertedly attempted, as a value-added application of proteinaceous feed ingredient (BTF) in aquaculture sector. FFF inclusion diets proved superior to RFF inclusion diets. Maximum protein and lipid retentions of 89% and 92% were evidenced. Fish feeding experiments disclosed the productive impact of substituting FM with FFF by 50 and 75% on the performance (fish growth) of Cirrhinus mrigala (19.03 cm final length, 112.89 g Kg-1 final body weight, and 99% survival rate) and Labeo rohita (22.19 cm final length, 214.99 g Kg-1 final body weight, and 97% survival rate) respectively, with enhanced muscle biochemical compositions. FFF inclusion diets best suited column feeders than bottom feeders, with acceptable feed conversion ratio (< 2) and about 65% and 69% of protein in Rohu and Mrigal, respectively after 90 days of feeding. Absence of feed related mortality and multimycotoxins in FFF inclusion diets authenticated its invulnerable nature, signifying the need of bacterial fermentation processes to pull out the maximum worth of the solid waste. Thus, bovine tannery fleshing (BTF) would probably be used as a relatively inexpensive, effectual, safe, and an absolute source of protein for marine animals, reinforcing aquaculture business to strengthen up its profitability and eventually; this is an assuring conscientious solid waste management strategy that could be scaled-up to develop high-quality aquaculture feeds. 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
Thazeem B., Waste Management Division, Integrated Rural Technology Centre (IRTC), Kerala, Palakkad, 678592, India; Umesh M., Department of Life Sciences, CHRIST (Deemed to be University), Hosur Road, Karnataka, Bengaluru, 560029, India
Valorization of Fish Waste for Chitosan Production: A Sustainable Approach
Fish waste can be used as an ideal substrate for extraction of commercially important bio-polymers like chitosan. Chitosan is a versatile biopolymer with various biological and chemical properties such as biocompatibility, biodegradability and antimicrobial properties and can be a major applicant in different industries. The present research work focuses on extracting chitosan from fish scale waste through chemical extraction methods. Demineralization in this study is done using 1% HCl for 36 hours at 150 rpm and deproteinization is done using dilute 0.5N NaOH for 18 hours at 150 rpm. The final step deacetylation is done using a concentrated 40% NaOH solution at 90?C for 6 hours. The extracted chitosan had a yield of 12% per 100g of fish scale and characterization was done using FTIR, XRD, TGA and DSC. Further the possibility of fabrication of chitosan films followed by assessing their biodegradability will be the future scope of the work. The Electrochemical Society
ECS Transactions, Vol-107, No. 1, pp. 16259-16266.
https://doi.org/10.1149/10701.16259ecst https://www.scopus.com/inward/record.uri?eid=2-s2.0-85130538100&doi=10.1149%2f10701.16259ecst&partnerID=40&md5=5e87e4f1039d75eb2a33c9e9c4ab16e0
Suresh S., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Umesh M., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Sarojini S., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India