Recent Research in Science and Technology最新文献

{"title":"Characterization of ancient ceramic shreds: Insights into firing conditions and manufacturing technology","authors":"S. Mammadov, M. Gurbanov, A. Ahadova, A. Abishov","doi":"10.25081/rrst.2023.15.8501","DOIUrl":"https://doi.org/10.25081/rrst.2023.15.8501","url":null,"abstract":"Four ancient ceramic shreds from the archaeological site Leletepe in the Fizuli region of the Republic of Azerbaijan and two local raw ceramic pastes were characterized by powder X-ray diffraction (PXRD) and thermal analysis (TG-DTG) techniques. XRD analysis of ceramic sherds reveals that all investigated samples contain similar minerals: quartz, feldspar, and clay. Three samples out of four contain calcite. Based on the traditional approach, it has been assumed that the firing process in these samples stopped before 700 °C. The mass loss ratios of samples of ancient ceramics also indicate that reversible dehydroxylation took place in all four samples, thus indicating the initial mild firing conditions. The summary of all the applied methods indicates that the ceramic samples were made using a similar manufacturing technology. According to XRD analysis, samples N1 and N4 contain diopside, and samples N2 and N3 contain maghemite, indicating the different origins of the ceramic shreds. Analysis of the raw ceramic mass also did not reveal the presence of these minerals, which may indicate a discrepancy between the origin of ancient ceramic sherds and modern ones.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135049076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocatalytic decolorization of methyl orange dye using SnO2-TiO2 nanocomposite particles synthesised by Ultrasonic Assisted Co-Precipitation Method","authors":"M. A. S. Azad, Newaz Muhammed Bahadur, Md. Shahadat Hossain, A. Masum","doi":"10.25081/rrst.2023.15.8249","DOIUrl":"https://doi.org/10.25081/rrst.2023.15.8249","url":null,"abstract":"The ultrasonic-aided co-precipitation method was used to create SnO2-TiO2 nanocomposite particles. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and UV-vis spectroscopy were used to characterize the nanocomposite particles. XRD patterns revealed the crystalline structure of particles and the average particle size determined by Debye Scherrer’s equation was found to be 11.355, 4.9577, and 4.333 nm for TiO2 nanoparticles, SnO2 nanoparticles, and SnO2-TiO2 nanocomposites, respectively. The Ti, Sn, and O species were confirmed to exist by energy-dispersive X-ray spectroscopy (EDS). The UV absorption peaks at 288, 305, and 350 nm were attributed to SnO2, TiO2-SnO2, and TiO2 respectively. The photocatalytic aspect was investigated in a model organic contaminant (methyl orange). Data obtained by the above-mentioned characterization methods confirmed the superior photocatalytic activity of SnO2-TiO2 nanostructure than SnO2 or TiO2 alone.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"679 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74754591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perception of multimodal objects in NLP through computer vision","authors":"Sakib Hosen Himel, Mahidul Islam Rana","doi":"10.25081/rrst.2023.15.8022","DOIUrl":"https://doi.org/10.25081/rrst.2023.15.8022","url":null,"abstract":"This project is based on voice interaction and object detecting properties. It will allow the users to do voice interaction with the artificial intelligence and it will reply with the system voice. That is how users will use their voice to command as a trigger to find out the category of any object by showing it using the camera module. At first, the user will show an object with the help of a camera and ask for identifying it in the system. The object detection system then captures a frame from the camera and predicts through the structure to identify which class the object belongs to by extracting the feature from there. The process of this application is to search the database to match the structural data to find out the exact category of the object. When this system approximately matches with the information of a category then the application will suggest the category for the object by mentioning the category name through voice. This application can also give some basic information by asking for it. Our general-purpose approach can be effective in interpreting the structure and properties of objects in different networks through natural language processing.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91332255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A confirmatory death case of human rabies in Bangladesh","authors":"M. Chowdhury, Jakir Hossain, Smarnima Ghosh Jui, Md. Zahid Al Hasan, Tabassum Akter, L. Shill, S. Hussen","doi":"10.25081/rrst.2022.14.7630","DOIUrl":"https://doi.org/10.25081/rrst.2022.14.7630","url":null,"abstract":"In the present study clinical profile with specific attention to typical clinical presentation and deficiencies/lacunae in post-exposure prophylactic management as per WHO guidelines in adult rabies patients. An observational analysis was performed on a clinically suspected human rabies case, whose samples were gathered at a rabies diagnostic laboratory at Infectious Disease Hospital, Dhaka (IDH) over the course of three days (20/09/2021 to 23/09/2021). The patient’s clinical and demographic information was acquired. The clinical specimens involved cerebrospinal fluid (CSF), saliva, nuchal skin biopsy and serum collected antemortem, and brain tissue obtained post-mortem. A variety of laboratory tests were used to make the diagnosis. The patient died in hospital 3 days after hospitalization (20 days after the occurrence of animal bite). After referring the patient to the IDH, a lumbar puncture was administered, and PCR tests for rabies were forwarded to the cerebrospinal fluid (CSF) and serum. The serum & CSF have indicated antibodies with rabies. The fluorescence microscopy screening program for rabies was positive in the brainstem, cerebral cortex, cerebellum, and cerebrum. The patient’s samples of saliva (0.5-1 mL) and skin were also sent to PCR for rabies. Diagnostic testing of the patient later confirmed human rabies. Human rabies is a crucial health problem. So, there are required to educate the community and health workers about the value of immediate and adequate post-exposure treatment, to launch an effective control program for rabid dogs, and to make availability of rabies vaccine as well as rabies immunoglobulin (RIG).","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79859301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preliminary studies on predatory potential of Australian ladybird beetle, Cryptolaemus montrouzieri Mulsant against Mealybug, Planococcus lilacinus Cockerell","authors":"A. Karthikeyan, G. Lavanya, K. Naveena, P. Mangayarkarasi","doi":"10.25081/rrst.2022.14.7524","DOIUrl":"https://doi.org/10.25081/rrst.2022.14.7524","url":null,"abstract":"Mealybug Planococcus lilacinus Cockerell (Hemiptera: Pseudococcidae) damages Cocoa, Guava, Citrus, Cotton and other plant families. Besides causing direct loss to the plants they also reduce the market value of infested fruits. The extent of the damage may go up to 70 percent in a severe infestation. An Australian ladybird beetle, Cryptolaemus montrouzieri Mulsant (Coleoptera: Coccinellidae) introduced from Australia is a potential bio-control agent and is being utilized on many crops in Southern India. Mealybugs or scale insects constitute the natural food of certain ladybird beetles. The adult beetles as well as their larvae (grubs) seek the pests and feed voraciously on all stages. They often wipe out the entire pest colonies. The ladybird beetles are being used for suppression of mealy bugs in citrus, coffee, grapes, guava, ornamental and a variety of other crops. The feeding potential of different development stages of C. montrouzieri, a biological control agent against mealybugs, was investigated on P. lilacinus. Fourth instar grubs and adults of C. montrouzieri were the most voracious feeders of mealybug. The number of mealybug consumed by 1st, 2nd, 3rd and 4th instar larvae and adult beetles of C. montrouzieri was 20, 33.30, 37.50, 40 and 66.60 percent respectively. The results indicate that C. montrouzieri has the potential to be exploited as a bio-control agent. Inoculative releases of 4th instar larvae and adults may provide instant control of P. lilacinus. Field experiments should be conducted to determine the efficiency of the ladybird beetle on this mealybug.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85027784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Augmented reality marker-based technology for augmenting newspaper advertisement\"","authors":"Rahat Pervez, D. Chowdhury, Md Sahadat Hossain Sagor, Md. Murshadul Hoque, Nafiul Islam","doi":"10.25081/rrst.2022.14.7540","DOIUrl":"https://doi.org/10.25081/rrst.2022.14.7540","url":null,"abstract":"Recent Research in Science and Technology, 2021, 13, 13–18. https://doi.org/10.25081/rrst.2021.13.7005One of the authors’ (Md. Imdadul Hoque3) affiliations was mentioned incorrectly. It should be read as follows:\u00003Department of Computer Science and Telecommunication Engineering, Noakhali Science andTechnology University, Noakhali – 3814, Bangladesh","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76188478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mass media utilization to promote public behavior change during COVID-19 situation: A population survey of Dhaka city","authors":"Md. Solayman Miah, Md. Fahim Sharker Eashat, N. Purba, Nusrat Jahan Jhily, Md. Shahedul Islam","doi":"10.25081/rrst.2022.14.7504","DOIUrl":"https://doi.org/10.25081/rrst.2022.14.7504","url":null,"abstract":"A huge amount of information associated with the novel coronavirus disease 2019 (COVID-19) outbreak was circulated by mass media in Bangladesh. There has been a rare example so far of how media intervention during the epidemic can affect the public behaviour of Bangladesh. We aimed to assess mass media's influence on changing public behaviour during the second wave of COVID-19. An online cross-sectional survey among 416 Bangladeshi respondents was conducted between August and September 2021. Besides descriptive statistics, datasets were analyzed through a set of statistical methods such as Pearson’s correlation coefficient, and stepwise multiple regression model. The results showed that knowledge level change towards COVID-19 (10 items) had the highest association with behaviour change towards COVID-19 (16 items), indicating a high adoption of public behavior change. There was a positive significant relationship between the behaviour change towards COVID-19 (16 items) with the media's role in making awareness regarding COVID-19 (r= 0.342, p < .001), while there was a negative relationship between the behaviour change towards COVID-19 (16 items) of the respondents with age of participants (r= -.234, p < .001). The results also disclosed that knowledge level, media credibility, and media check-in had the largest contribution to influence the public behavior change. We also found that social media was highly used media as expected during the COVID-19 outbreak. The outcomes of the survey have vital implications for public behavior change and may support infectious disease suppression and control. Our outcomes also stress the significance of the reliability of information shared via mass media outlets and practical strategies to counter misinformation during the COVID-19 outbreak.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81652230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Augmented reality marker-based technology for augmenting newspaper advertisement","authors":"Rahat Pervez, D. Chowdhury, Sahadat Hossain Sagor, M. Hoque, Nafiul Islam","doi":"10.25081/RRST.2021.13.7005","DOIUrl":"https://doi.org/10.25081/RRST.2021.13.7005","url":null,"abstract":"In this research, we describe an augmented reality android-based idea in which we utilize augmented reality marker-based technology for augmenting newspaper advertisement with electronic information that does not modify the format of the newspaper document and remains exactly the same, substantially improves the utility of paper by reducing the portion of the printed Ad on the newspaper. An implementation on a camera phone is discussed that lets users retrieve data and access links from newspaper advertisements to electronic data. We carefully examined over twenty people of different ages and occupations who participated in the newspaper-based AR and we got a significant overall response. Further analysis implies that this may assist students in understanding the complex 3D objects, which they can manipulate, learn tasks and improve skills.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81327362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neglected Tropical Diseases (NTDs) - A Snapshot of Research","authors":"P. Paul, Dipu Podder, Arup Kumar, M. Rahman, Md. Julhasur Rahman, N. Purba, M Zahid Hasan, Tabassum Akter","doi":"10.25081/RRST.2021.13.6927","DOIUrl":"https://doi.org/10.25081/RRST.2021.13.6927","url":null,"abstract":"More than a billion people-one-sixth of the earth’s population is infected with one or more neglected tropical diseases (NTDs) in developing countries. Over the past decade, interests in NTDs have resurged as these are a barrier to achieving broader human development outcomes (e.g., improved newborn, child and maternal health, food, and nutritional safety). Several national and international organizations (such as the WHO, USAID, CDC, and others) concentrate on NTDs and fighting to control or prevent them. This review describes a brief introduction to NTDs, the global burden of the diseases in terms of disability-adjusted life years (DALYs), years lived with disability (YLDs) and years of life lost (YLLs). This paper also reviews the negative impact of these diseases on global economies and discusses strategies for public health to prevent and eliminate these diseases, the achievements and challenges that can be achieved to address adversity there. KEYWords: neglected tropical diseases, ascariasis, trichuriasis, schistosomiasis, lymphatic filariasis (LF) ISSN: 2076-5061 Review Article received: December 25, 2020 Accepted: February 27, 2021 Published: March 08, 2021 *Corresponding Author: Tabassum Akter E-mail: tabassum.pharma. nstu@gmail.com Copyright: © The authors. This article is open access and licensed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted, use, distribution and reproduction in any medium, or format for any purpose, even commercially provided the work is properly cited. Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"19 1","pages":"6-12"},"PeriodicalIF":0.0,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84060470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Smart detection and prevention procedure for DoS attack in MANET","authors":"A. Muntaheen, Milton Chandro Bhowmick, Md. Raqibul Hasan Rumman, Nayeem Al-Tamzid Bhuiyan, Md. Taslim Mahmud Bhuyain, Md. Rakibul Islam, Md. Babar Ali Bhuyan, Md Sahadat Hossain Sagor, Md. Murshadul Hoque, Md. Majharul Islam, M. Hasan","doi":"10.25081/RRST.2021.13.6848","DOIUrl":"https://doi.org/10.25081/RRST.2021.13.6848","url":null,"abstract":"A self-organized wireless communication short-lived network containing collection of mobile nodes is mobile ad hoc network (MANET). The mobile nodes communicate with each other by wireless radio links without the use of any preestablished fixed communication network infrastructure or centralized administration, such as base stations or access points, and with no human intervention. In addition, this network has potential applications in conference, disaster relief, and battlefield scenario, and have received important attention in current years. There is some security concern that increases fear of attacks on the mobile ad-hoc network. The mobility of the NODE in a MANET poses many security problems and vulnerable to different types of security attacks than conventional wired and wireless networks. The causes of these issues are due to their open medium, dynamic network topology, absence of central administration, distributed cooperation, constrained capability, and lack of clear line of defense. Without proper security, mobile hosts are easily captured, compromised, and attacked by malicious nodes. Malicious nodes behavior may deliberately disrupt the network so that the whole network will be suffering from packet losses. One of the major concerns in mobile ad-hoc networks is a traffic DoS attack in which the traffic is choked by the malicious node which denied network services for the user. Mobile ad-hoc networks must have a safe path for transmission and correspondence which is a serious testing and indispensable issue. So as to provide secure communication and transmission, the scientist worked explicitly on the security issues in versatile impromptu organizations and many secure directing conventions and security measures within the networks were proposed. The goal of the work is to study DoS attacks and how it can be detected in the network. Existing methodologies for finding a malicious node that causes traffic jamming is based on node’s retains value. The proposed approach finds a malicious node using reliability value determined by the broadcast reliability packet (RL Packet). In this approach at the initial level, every node has zero reliability value, specific time slice, and transmission starts with a packet termed as reliability packet, node who responded properly in specific time, increases its reliability value and those nodes who do not respond in a specific time decreases their reliability value and if it goes to less than zero then announced that it’s a malicious node. Reliability approach makes service availability and retransmission time.","PeriodicalId":20870,"journal":{"name":"Recent Research in Science and Technology","volume":"3 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85648149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}