A comprehensive analysis of horizontally polarized shear waves in a thin microstructural plate

Vikas Sharma,Satish Kumar 국제구조공학회 2023 Structural Engineering and Mechanics, An Int'l Jou Vol.85 No.4

Horizontally polarized shear waves (SH) have numerous applications in various scientific, engineering, and medical fields. The study deals with an investigation of SH-waves in a thin microstructural plate. The plate has been mathematically modelled by employing size dependent consistent couple stress theory, which involves a length parameter, known as characteristic length. Characteristic length is assumed to be of the order of internal microstructures of the material. Dispersion relations have been calculated for the propagation of SH-waves using different set of boundary conditions. Group velocity of the SH-waves has been calculated by using an analytical approach. The mathematical results obtained in the problem are discussed in detail and the impacts of characteristic length parameter and thickness of plate are presented on phase velocity of SH-waves through graphical illustrations.

Impact of Service Quality on Behavioural Intention to Use Fin Tech Payment Services: An Extension of SERVEQUAL Model

Vikas Sharma,Sanjay Taneja,Munish Gupta,KshitizJangir,Ercan Ozen 한국경영정보학회 2023 Asia Pacific Journal of Information Systems Vol.33 No.4

The study aims to determine the impact of quality outcomes on behavior intentions in Financial Technology (FinTech) payment services. The study is focused on the development and testing of the impact of the SERVQUAL model on the TAM, i.e., Technology Acceptance Model for the measurement of the behavioral intention of users to use fintech payment services. The sample entails 578 specific survey responses from northern India from October to December 2022. The respondents were users of FinTech. The PLS-SEM technique was employed to explain the implementation process. Consequently, it discovered a significant relationship between the SERVQUAL models and the impact on behavioral intentions identified by TAM. The study will provide insight into the factors that impact the quality outcomes and adoption of Fintech payment services to the providers. The paper demystifies FinTech payment services in the range of perception of service quality outcomes and provides essential theories. The TAM model reflects the customer’s sense of satisfaction, usefulness, and attitude. In contrast, the SERVQUAL model demonstrates the user’s assessment of service quality outcomes such as quality, trust, security, and service quality positively affects behavioral intention in FinTech payment services.

Role of Wearable Technology on Chronic Liver Disease in Type 2 Diabetic Patients

( Vikas Sharma ),( Sagar Lavenia ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1

Aims: New wearable sensor networks together with smartphone applications are being examined and tested for their potential to monitor and manage chronic liver disease (CLD) in type 2 diabetic patients. To develop methods for analyzes and monitor of map the intersection(s) of hepatology data in relation to CLD via wearable technology (MI band and Yu band). To study effects of daily life routine activities on data by a wearable devices that can obtain real-time CLD data, help technologists understand medical aspects, and clinicians to understand technological processes them and provides assistance based on pre-determined specifications in CLD in type 2 diabetic patients in Agra city, India. Methods: Total of 106 CLD with type 2 diabetes patients were taken as subject with an equal ratio of male and female. Wearable monitoring devices were put on the wrist of CLD patients for 30 days and a questionnaire was filled out by each patient. Both diabetes and cardiovascular disease in turn are known as important factors for developing CLD and aggravation toward once end-stage liverl disease. In all subjects, blood glucose was measured on daily basis with day to day data of their monitoring of step count (deep sleep, light sleep, wake up time), blood pressure, calorie burnt, insulin dose, motion time i.e. every time when your body was in motion, sleep monitoring, monitoring heart rate, cardiac arrhythmias to know daily routines and recording them for health purpose. Results: Present results shown that both wearable device reading showed there was a normal heart rate, more calorie burnt with better control of sugar control and average good sleep count in more physically workout, include walking in CLD patients compared to less physically workout CLD patients, identified by professional physiotherapists. Both device reading showed that after changing lifestyle routine among less physically active CLD patients, their post- CLD events normalize with less requirement of medicine and insulin injection dose. Conclusions: With this study we show that, by using, these wearable devices ensured online assistive feedback for CLD patients with type 2 diabetes is possible with their health awareness, exercising and motivate further studies.

Clinicoepidemiological Profile and Prognostic Factors in Neurotuberculosis in Children

Vikas Sharma,Krishnan Rajeshwari,Deepak Kumar,Garima Gupta 대한소아신경학회 2023 대한소아신경학회지 Vol.31 No.2

Purpose: This study aimed to determine the clinicoepidemiological profile and prognostic factors in children with neurotuberculosis.Methods: An observational study was conducted at a tertiary care hospital on 50 children diagnosed with neurotuberculosis. The demographic profile, clinical details, and all investigations were recorded on a predetermined form and datasheet for analysis, and disability severity was graded using the modified Rankin Scale.Results: Fifty patients were enrolled (male-to-female ratio, 1.08:1). Younger children (1 to 3 years) were more commonly affected. Most patients were malnourished, and only 58% had been immunized with the Bacillus Calmette-Guerin vaccine. Fever was the most common symptom (96%) followed by headache, altered consciousness, vomiting, seizures, and abnormal posture. On cerebrospinal fluid (CSF) analysis, 87% of patients showed pleocytosis with lymphocytic predominance. More than 80% of patients had CSF protein levels >100 mg/dL and CSF glucose levels <60 mg/dL. Common findings on neuroimaging were hydrocephalus (76%), basal meningeal enhancement (60%), basal exudates (52%), and parenchymal infarcts (32%). We noted a mortality rate of 40%, of whom 87.5% had modified British Medical Research Council (BMRC) stage 3 tubercular meningitis (TBM). All patients who survived stage 3 TBM had a severe disability, and over 50% of patients with stage 2 TBM had moderate to severe disabilities.Conclusion: Young age, lower socioeconomic status, BMRC stages 2 and 3, abnormal posture, hydrocephalus, and the presence of basal exudates were associated with poor outcomes. High suspicion is needed for early diagnosis and prevention of disability and mortality.

Influence of microstructure, heterogeneity and internal friction on SH waves propagation in a viscoelastic layer overlying a couple stress substrate

Vikas Sharma,Satish Kumar 국제구조공학회 2016 Structural Engineering and Mechanics, An Int'l Jou Vol.57 No.4

In this paper, we have investigated shear horizontal wave propagation in a layered structure, consisting of granular macromorphic rock (Dionysos Marble) substrate underlying a viscoelastic layer of finite thickness. SH waves characteristics are affected by the material properties of both substrate and the coating. The effects of microstructural parameter “characteristic length” of the substrate, along with heterogeneity, internal friction and thickness of viscoelastic layer are studied on the dispersion curves. Dispersion equation for SH wave is derived. Real and damping phase velocities of SH waves are studied against dimensionless wave number, for different combinations of various parameters involved in the problem.

Detection of Rice Disease Using Bayes' Classifier and Minimum Distance Classifier

Sharma, Vikas,Mir, Aftab Ahmad,Sarwr, Abid Korea Multimedia Society 2020 The journal of multimedia information system Vol.7 No.1

Rice (Oryza Sativa) is an important source of food for the people of our country, even though of world also .It is also considered as the staple food of our country and we know agriculture is the main source country's economy, hence the crop of Rice plays a vital role over it. For increasing the growth and production of rice crop, ground-breaking technique for the detection of any type of disease occurring in rice can be detected and categorization of rice crop diseases has been proposed in this paper. In this research paper, we perform comparison between two classifiers namely MDC and Bayes' classifiers Survey over different digital image processing techniques has been done for the detection of disease in rice crops. The proposed technique involves the samples of 200 digital images of diseased rice leaf images of five different types of rice crop diseases. The overall accuracy that we achieved by using Bayes' Classifiers and MDC are 69.358 percent and 81.06 percent respectively.

Antidiabetic Activity of an Ayurvedic Formulation Chaturmukha Rasa: A Mechanism Based Study

Sharma, Akansha,Tiwari, Raj K,Sharma, Vikas,Pandey, Ravindra K,Shukla, Shiv Shnakar KOREAN PHARMACOPUNCTURE INSTITUTE 2019 Journal of pharmacopuncture Vol.22 No.2

Objectives: The objective of this study was to evaluate antidiabetic activity of Chaturmukha rasa based on streptozotocin induced diabetes model, alpha amylase inhibitory activity, alpha Glucosidase inhibitory activity and inhibition of sucrase. Methods: Chaturmukha rasa was prepared as per Ayurvedic formulary. Antidiabetic activity was measured in experimentally streptozotocin induced rats. The dose was taken as 45 mg/kg, i.p. The antidiabetic activity of Chaturmukha rasa was compared Triphala Kwatha, a marketed formulation. Further In vitro $\acute{\alpha}$- Amylase Inhibitory Assay, In vitro salivary amylase Inhibitory Assay, In vitro ${\alpha}-Glucosidase$ Inhibitory Assay and In vitro Sucrase Inhibitory Assay was performed with respect to Chaturmukha rasa. The IC50 value was calculated for all the above activity. Results: Streptozotocin with Acarbose showed significant decrease in blood glucose level whereas streptozotocin with Triphala kwatha showed more decrease in blood glucose level than Streptozotocin with Acarbose. The combination of Streptozotocin + Triphala kwatha + Chaturmukha rasa showed a significant decrease in blood glucose level on 21st day. In vitro $\acute{\alpha}$- Amylase Inhibitory Assay the Chaturmukha rasa showed IC50 value $495.94{\mu}l$ when compared with Acarbose $427.33{\mu}l$, respectively. In the ${\alpha}-Glucosidase$ Inhibitory Assay Chaturmukha rasa showed IC50 value $70.93{\mu}l$ when compared with Acarbose $102.28{\mu}l$, respectively. In vitro Sucrase Inhibitory Assay Chaturmukha rasa showed IC50 value $415.4{\mu}l$ when compared with Acarbose $371.43{\mu}l$, respectively. Conclusion: This study supports that Chaturmukha rasa may inhibit diabetes by inhibition of salivary amylase or alpha Glucosidase or sucrase. This may be the mechanism by which Chaturmukha rasa inhibits diabetes. Further this study supports the usage of Chaturmukha rasa for the management of diabetes.

Comparison of Topology Based-Routing Protocols in Wireless Network

Sharma, Vikas,Ganpati, Anita Korea Multimedia Society 2019 The journal of multimedia information system Vol.6 No.2

VANET (Vehicular Ad-hoc Network) is a mobile Ad-hoc Network which deals with the moving vehicles. VANET supports Intelligent Transport Systems (ITS) which is related to different modes of transport and traffic management techniques. VANETs enabled users to be informed and make them safer. VANET uses IEEE 802.11p standard wireless access protocol for communication. An important and necessary issue of VANET is to design routing protocols. In a network, communication takes place by the use of the routing protocols. There are mainly two types of communications used such as Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) in VANET. Vehicles can send and receive messages among them and also to and from infrastructure used. In this paper, AODV, DSR and DSDV are compared by analysing the results of simulation on various metrics such as average throughput, instant throughput, packet delivery ratio and residual energy. Findings indicates utilization of AODV and DSR is more applicable for these metrics as compared to DSDV. A network simulator (NS2) is used for simulation.

Classical and Bayesian methods of estimation for power Lindley distribution with application to waiting time data

Sharma, Vikas Kumar,Singh, Sanjay Kumar,Singh, Umesh The Korean Statistical Society 2017 Communications for statistical applications and me Vol.24 No.3

The power Lindley distribution with some of its properties is considered in this article. Maximum likelihood, least squares, maximum product spacings, and Bayes estimators are proposed to estimate all the unknown parameters of the power Lindley distribution. Lindley's approximation and Markov chain Monte Carlo techniques are utilized for Bayesian calculations since posterior distribution cannot be reduced to standard distribution. The performances of the proposed estimators are compared based on simulated samples. The waiting times of research articles to be accepted in statistical journals are fitted to the power Lindley distribution with other competing distributions. Chi-square statistic, Kolmogorov-Smirnov statistic, Akaike information criterion and Bayesian information criterion are used to access goodness-of-fit. It was found that the power Lindley distribution gives a better fit for the data than other distributions.

Bauhinia variegata: a comprehensive review on bioactive compounds, health benefits and utilization

Sharma Kartik,Kumar Vikas,Kumar Satish,Sharma Rakesh,Mehta C. M. 경희대학교 융합한의과학연구소 2021 Oriental Pharmacy and Experimental Medicine Vol.21 No.4

Kachnar (Bauhinia variegata) is distributed throughout the India and world. Its each part (flowers, stem, seed, root, bark, leaves) contains numerous phytochemicals like flavonoids, tannins, kaempferol, terpenoids, saponins, cardiac glycosides and quercetin which plays a vital role in promoting human health and hence this tree has gained popularity as a medicinal tree traditionally and being utilized for curing different diseases. Despite of its composition and various health benefits, its commercial utilization is still limited because of its availability at limited places for limited time; therefore the demand of the present era is to explore this plant for its utilization in food and pharmacy industry with scientific intervention. The present review brings into limelight the literature of the traditional uses, phytochemical properties and therapeutic aspects of this underutilized plant.