Diverse Methodologies to Improve Covariance based Object Tracking

Sanchita Singha,Sujoy Datta 보안공학연구지원센터 2015 International Journal of Signal Processing, Image Vol.8 No.6

Tracking is an important process of computer vision research. But still after so many researches accuracy is still become a bottleneck. Within different tracking techniques covariance based tracking is a new technique which gives more accuracy than other techniques. There are several methods and researches have been done on covariance tracking. The covariance tracking process also uses some distance measures to calculate the dissimilarity between two target regions. Here we have list down some of the most useful distance measurement techniques which provide accurate results. We have also implemented those distance measurement techniques and shown their results with accuracy comparison. Even the distance between the target and the candidate covariance matrix is itself enough track an object, but to get more accurate result some techniques are applied on covariance tracking. Here we have listed some of those techniques which happen to provide better results after applying on covariance tracking and also pointed out the advantages and drawbacks of those techniques.

Biochar Application Reduces Ammonia Volatilization from Soil

Sanchita Mandal,Nanthi S Bolan,Ramya Thangarajan,Naser Khan,Binoy Sarkar 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Metabolic Engineering of Bacteria for Renewable Bioethanol Production from Cellulosic Biomass

Sanchita Banerjee,Gargi Mishra,Amit Roy 한국생물공학회 2019 Biotechnology and Bioprocess Engineering Vol.24 No.5

Biomass is renewable and most abundant raw material on earth. Technologies have been employed to utilize this vast renewable resource for biofuel production. In recent years, microorganisms have received much attention for biofuel production so that it can replace the non-renewable fossil fuels. They secrete synergistic enzymes for degrading the complex biomass to simple sugars and subsequently fermenting them to alcohol. With the help of recombinant DNA technology and other metabolic engineering, biomass metabolizing enzymes and bioethanol producing microbes have been developed which have been used as consolidated bioprocessing (CBP) reactors. In CBP, both hydrolysis and fermentation are carried out in a single reaction vessel. This review focuses on the recent achievements that have been made in some important industrial bacteria so that they are better capable of scavenging the biomass for bioethanol production. We have concentrated on introduction of heterologous genes and modifications of metabolic pathways in these microbes so that they can ferment a wide variety of sugars and at the same time can overcome the major challenges faced by them during ethanol production.

Mechanistic insights of 2,4-D sorption onto biochar: Influence of feedstock materials and biochar properties

Mandal, Sanchita,Sarkar, Binoy,Igalavithana, Avanthi Deshani,Ok, Yong Sik,Yang, Xiao,Lombi, Enzo,Bolan, Nanthi Elsevier Applied Science 2017 Bioresource technology Vol.246 No.-

<P><B>Abstract</B></P> <P>Objective of this study was to investigate the mechanisms of 2,4-Dichlorophynoxy acetic acid (2,4-D) sorption on biochar in aqueous solutions. Sorption isotherm, kinetics, and desorption experiments were performed to identify the role of biochars’ feedstock and production conditions on 2,4-D sorption. Biochars were prepared from various green wastes (tea, burcucumber, and hardwood) at two pyrolytic temperatures (400 and 700°C). The tea waste biochar produced at 700°C was further activated with steam under a controlled flow. The sorption of 2,4-D was strongly dependent on the biochar properties such as specific surface area, surface functional groups, and microporosity. The steam activated biochar produced from tea waste showed the highest (58.8mgg<SUP>−1</SUP>) 2,4-D sorption capacity, which was attributed to the high specific surface area (576m<SUP>2</SUP> g<SUP>−1</SUP>). The mechanism of 2,4-D removal from aqueous solution by biochar is mainly attributed to the formation of heterogeneous sorption sites due to the steam activation.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Steam activated tea waste biochar sorbed the highest amount of 2,4-D. </LI> <LI> Steam activation increased biochar surface area and conserved oxygen-containing functional groups. </LI> <LI> 2,4-D desorption was lowest in steam activated biochar. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

Enhancement of chromate reduction in soils by surface modified biochar

Mandal, Sanchita,Sarkar, Binoy,Bolan, Nanthi,Ok, Yong Sik,Naidu, Ravi Elsevier Science B.V., Amsterdam 2017 Journal of environmental management Vol.186 No.2

Sentiment Analysis Approaches on Different Data set Domain : Survey

Shailendra Kumar Singh,Sanchita Paul,Dhananjay Kumar 보안공학연구지원센터 2014 International Journal of Database Theory and Appli Vol.7 No.5

The growth of social website and electronic media contributes vast amount of user generated content such as customer reviews, comments and opinions. Sentiment Analysis term is referred to the extraction of others (speaker or writer) opinion in given source material (text) by using NLP, Linguistic Computation and Text mining. Sentiment classification of product and service reviews and comments has emerged as the most useful application in the area of sentiment analysis. This paper focuses on the comparative study (1997 – 2012) of different sentiment classification techniques performed on different data set domain such as web discourse, reviews and news articles etc. The most popular approaches are Bag of words and feature extraction used by researchers to deal with sentiment analysis of opinion related to movies, electronics, cars, music etc. The sentiment analysis is used by manufacturers, politicians, news groups, and some organization to know the opinions of customer, people, and social website users.

3D printing for spine pathologies: a state‑of‑the‑art review

Shrutika Sharma,Sanchita Pahuja,Vishal Gupta,Gyanendra Singh,Jaskaran Singh 대한의용생체공학회 2023 Biomedical Engineering Letters (BMEL) Vol.13 No.4

Three-Dimensional Printing has advanced throughout the years in the field of biomedical science with applications, especiallyin spine surgeries. 3D printing has the ability of fabricating highly complex structures with ease and high dimensionalaccuracy. The complexity of the spine's architecture and the inherent dangers of spinal surgery bring the evaluation of 3Dprinted models into consideration. This article summarizes the benefits of 3D printing based models for application inspine pathology. 3D printing technique is extensively used for fabrication of anatomical models, surgical guides and patientspecific implants (PSI). The 3D printing based anatomical models assist in preoperative planning and training of students. Furthermore, 3D printed models can be used for improved communication and understanding of patients about the spinaldisorders. The use of 3D printed surgical guides help in the stabilization of the spine during surgery, improving post proceduraloutcomes. Improved surgical results can be achieved by using PSIs that are tailored for patient specific needs. Finally,this review discusses the limitations and potential future scope of 3D printing in spine pathologies. 3D printing is still inits infancy, and further research would provide better understanding of the technology's true potential in spinal procedures.

Analytics for the Quality of Fertility Data using Particle Swarm Optimization

Puneet Singh Duggal,Sanchita Paul,Priyanka Tiwari 보안공학연구지원센터 2015 International Journal of Bio-Science and Bio-Techn Vol.7 No.1

In today's faced paced life, diseases and medical problems which were only confined to the elderly are slowly becoming common among the younger lot. These medical problems which are induced due to factors such as behavioural habits, eating habits, environmental factors, allergies and the lifestyle of individuals are termed as lifestyle diseases. Male fertility has slowly been degrading due to this. It has been a surge of cases of fertility and mortality degradation of semen which are correlated to the unhealthy and undisciplined lifestyles of the individuals. Studies have been conducted in the past to analyze the scenario through medical and clinical tests. Non-medical behavioural and lifestyle aspects were studied and analyses were based on it. It was found out that non medical aspects also effect male fertility and there is an correlation between the two. In this paper the seminal quality is determine with the help of clustering techniques and validate using different classification techniques.

Trials and tribulations of conducting interventional studies in urban slums of a developing country: Experiences from Kolkata, India

Mahapatra, Tanmay,Mahapatra, Sanchita,Pal, Debottam,Saha, Jayanta,Lopez, AnnaLena,Ali, Mohammad,Bannerjee, Barnali,Manna, Byomkesh,Sur, Dipika,Bhattacharya, Sujit,Kanungo, Suman TaylorFrancis 2016 Human vaccines & immunotherapeutics Vol.12 No.1

<P>Experimental studies involving human subjects provide most internally valid evidences in epidemiological research due to their robust methodology. While conducting population-based interventional studies, to achieve external validity, inclusion of information from vulnerable groups like urban slum-dwellers of the developing world, in the epidemiological estimates is of paramount importance. The challenges faced while conducting 2 consecutive large-scale, community-based vaccine trials in urban slums of Kolkata, India are presented in this article. Interventions in these communities often get constrained by issues pertaining to human rights and benefits, socio-cultural factors, political environment, methodological shortcomings in addition to the challenges in ensuring community participation. While conducting these trials although we intermittently faced obstacles, by virtue of having a long term and robust surveillance system and developing a trusted relationship between the researchers, community leaders and residents we were able to come up with a commendable community participation which culminated into the success of the interventions. Bridging the gap between research and field operations by incorporating knowledge gathered from interventional studies and making strategies to improve health conditions of these informal settlers is a major unfulfilled agenda. We believe the lessons learnt during our research will help researchers while developing efficient interventions in similar setting.</P>

Designer carbon nanotubes for contaminant removal in water and wastewater: A critical review

Sarkar, Binoy,Mandal, Sanchita,Tsang, Yiu Fai,Kumar, Pawan,Kim, Ki-Hyun,Ok, Yong Sik Elsevier BV 2018 Science of the Total Environment Vol.612 No.-

<P><B>Abstract</B></P> <P>The search for effective materials for environmental cleanup is a scientific and technological issue of paramount importance. Among various materials, carbon nanotubes (CNTs) possess unique physicochemical, electrical, and mechanical properties that make them suitable for potential applications as environmental adsorbents, sensors, membranes, and catalysts. Depending on the intended application and the chemical nature of the target contaminants, CNTs can be designed through specific functionalization or modification processes. Designer CNTs can remarkably enhance contaminant removal efficiency and facilitate nanomaterial recovery and regeneration. An increasing number of CNT-based materials have been used to treat diverse organic, inorganic, and biological contaminants. These success stories demonstrate their strong potential in practical applications, including wastewater purification and desalination. However, CNT-based technologies have not been broadly accepted for commercial use due to their prohibitive cost and the complex interactions of CNTs with other abiotic and biotic environmental components. This paper presents a critical review of the existing literature on the interaction of various contaminants with CNTs in water and soil environments. The preparation methods of various designer CNTs (surface functionalized and/or modified) and the functional relationships between their physicochemical characteristics and environmental uses are discussed. This review will also help to identify the research gaps that must be addressed for enhancing the commercial acceptance of CNTs in the environmental remediation industry.</P> <P><B>Highlights</B></P> <P> <UL> <LI> CNTs can be designed through specific functionalization or modification process. </LI> <LI> Designer CNTs can enhance contaminant removal efficiency. </LI> <LI> CNTs can facilitate recovery and regeneration of nanomaterials. </LI> <LI> CNTs hold potential applications in wastewater purification and desalination. </LI> <LI> Further research is needed to enhance commercial acceptance of CNTs. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>