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Visual and Auditory Representation of Sentiment Classified Data Using SVM
Vishal T.V.,Srinidhi S.,Dr. G. Muneeswari 보안공학연구지원센터 2016 International Journal of Database Theory and Appli Vol.9 No.4
In the past few years, microblogging websites have evolved to become a source of varied kind of information. Twitter is a popular microblogging website where users create short status messages called ‘tweets’. In this paper, we present a state-of-the art model trained using a support vector machine with Bag-Of-Words and TF-IDF features for each tweet. The proposed model provides a visual and an auditory representation of the sentiments that the tweets have been classified into. The results show a state-of-the art performance achieved by the model with a F1 measure of 77.47 and an accuracy of 77.93% which is better than the existing models.
802.11 practical improvements using low power technology
Vishal Bhargava,N.S. Raghava 한국인터넷정보학회 2022 KSII Transactions on Internet and Information Syst Vol.16 No.5
The reliability and performance of WiFi need optimization because of the rising number of WiFi users day by day. A highlighted point is saving power while transmitting and receiving packets using WiFi devices. Wake-on–Wlan (WoW) is also implemented to improve energy consumption, but it also needs betterment. This paper will introduce universal ideas to transmit and receive packets using low-power technology like Bluetooth or BLE (Bluetooth low energy). While looking for power-saving ways in this research, WiFi connection and maintenance also take care using lesser power-consuming technology. Identifying different use-cases where low power technology can help save energy and maintain 802.11 connection is part of the research. In addition, the proposed method discuss energy saving with unicast and broadcast/multicast data. Calculation of power-saving and comparison with standalone WiFi usage clearly shows the effectiveness of the proposed method.
Development of a rule-based system to enhance the data consistency and usability of COBie datasheets
Vishal Kumar,Ai Lin Evelyn Teo 한국CDE학회 2021 Journal of computational design and engineering Vol.8 No.1
Building information modeling (BIM) for facilities management (FM) has been gaining considerable attention. Construction operations building information exchange (COBie) datasheets are conceptualized as an electronic format of data for FM handover extracted from the BIM model and supplemented with information from other sources. To build an efficient COBie datasheet, it is advocated to build and verify data at all stages of design and construction, commonly known as data drops. Nevertheless, data consistency verification is a difficult task pertaining to COBie’s complex structure and data representation. This study aims to understand the challenges associated with the COBie datasheet verification and consistency checking process, especially during data drop stages, and develop a solution to mitigate these challenges. The study uses a combined methodology of design thinking and waterfall model from the software development process. The outcome of the research study manifests in a prototype application. The prototype application can help in verifying COBie datasheet consistency during data drop stages. Additionally, this study proposes a new dimension to utilize the COBie datasheet to track various asset-related changes in a project by comparing COBie datasheets and visualizing this data in a visually interactive manner using a property graph model.
Vishal Nikam,Dhananjay Gopal,Habib ur Rehman,Thanatporn Bantaojai 경남대학교 기초과학연구소 2020 Nonlinear Functional Analysis and Applications Vol.25 No.4
The true motivation of this article is to provide sucient conditions with theaid of Geraghty type condensing operators that guarantee the existence of a solution of non-linear quadratic Volterra-Stieltjes integral equation. We also address several new fixed pointtheorems that ensure the existence of a xed point for Geraghty type condensing operatorsin real Banach spaces. An example and numerical approximations are presented to justifythe basis of our results.
Vishal J. Mayani,Suranjana V. Mayani,Sang Wook Kim 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.5
Metal-carbon nanoreactors (MCNRs) were prepared from a pristine carbon cage (CC) using a simple and efficient template method with nano silica ball (NSB), pyrolysis fuel oil (PFO) and transition metals, such as palladium and gold. Metal nanoparticles were embedded in approximately 25 and 170 nm sized, highly ordered carbon cages. The newly developed Pd, Au and Au–Pd doped carbon nanoreactors were characterized by microanalysis, N2 adsorption–desorption isotherm, powder X-ray diffraction (XRD), thermo-gravimetric analysis (TGA), scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS), transmission electron microscopy and inductively coupled plasma (ICP) analysis. The ordered MCNRs have exhibited dynamic hydrogen adsorption capability compared to the carbon cage.
Assessment and Optimization of Cutting Parameters while Turning AISI 52100 Steel
Vishal S Sharma,Suresh Dhiman,Rakesh Sehgal,Surinder Kumar Sharma 한국정밀공학회 2008 International Journal of Precision Engineering and Vol.9 No.2
This investigation deals with machining AISI 52100 steel using a carbide-coated tool. The machining cutting force and tool tip temperature are measured online while turning using different cutting parameters. The surface roughness is also measured, but off-line after each cut. The obtained data are analyzed and the influence of the Cutting parameters on the machining variables is determined in the form of plots. Regression models obtained from the results are tested using additional experimental data.
Vishal Suresh Chandane,Ajit Pralhad Rathod,Kailas Lachchhuram Wasewar,Shriram Shaligram Sonawane 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.1
The esterification of propionic acid with isopropyl alcohol was studied in an isothermal batch reactor. The activities of three different types of ion exchange resin catalysts (Amberlyst 15, Amberlyst 70 and Dowex 50 WX8) were investigated, and Amberlyst 15 was found to be an effective catalyst for the reaction. The effects of process parameters, namely, catalyst loading, alcohol to acid molar ratio and reaction temperature, were studied and optimized. Response surface methodology (RSM) was applied to optimize the process parameters as well as to investigate the interaction between process parameters. The internal and external diffusion limitations were found to be absent at a stirring speed of 500 rpm. The RSM model predicted response (83.26%) was verified experimentally with a good agreement of experimental value (83.62±0.39%). Moreover, the kinetics was studied and the Langmuir-Hinshelwood model was used to fit the kinetic data.
Traditional uses, phytochemistry and pharmacology of Bauhinia racemosa Lam - a review
Vishal Soni,Arvind Kumar Jha,Jaya Dwivedi,Priyanka Soni 셀메드 세포교정의약학회 2015 TANG Vol.5 No.4
Bahunia racemosa family, Caesalpiniaceae, is one of the precious resources of the earth. It has played a significant role in human civilization since ancient times. It is tall sized tree growing throughout India, Ceylon, China, and Timor. The different part of this plant contains β-sitosterol and β-amyrin, flavonols (kaempferol and quercetin) and two coumarins (scopoletin and scopolin), tannins etc. Various part of this plant has great pharmacological potential with a great utility and usage as folklore medicine as analgesic, antipyretic, anti-inflammatory, antispasmodic and antimicrobial activity. This review mainly focus on the exclusive review work on the traditional, phytochemical and pharmacological activities of this plant.
Degradation analysis of PCDTBT:PC71BM organic solar cells-an insight
Vishal Sharma,Vinamrita Singh,Manoj Arora,Swati Arora,R.P. Tandon 한국물리학회 2016 Current Applied Physics Vol.16 No.3
The current density-voltage (J-V) characteristics were measured for poly [N-900-heptadeca-nyl-2,7- carbazole-alt-5,5-(40,70-di-2-thienyl-20,10,30-benzo-thiadiazole)]:[6,6]-phenyl-C71-butyric acid methyl ester (PCDTBT:PC71BM) solar cells and studied for degradation analysis up to 150 h of fabrication. It was observed that the dark J-V characteristics in the degraded cell could be explained using both driftdiffusion (D-D) model and space charge limited current (SCLC) model. The D-D model could explain the J-V characteristics at initial voltage region, while SCLC model fitted well in the later part. By comparing the experimental data with theoretical curves, it was found that the transition from D-D model to SCLC model depends on the span of degradation. The results indicated an increase of traps and decrease of charge carrier mobility which may lead to degradation of organic solar cells. This work gave an insight into the degradation mechanism influencing the performance of organic solar cells.