JOURNAL OF SCIENTIFIC RESEARCH最新文献_第8页

Role of f(R,T) Gravity in Bianchi Type-V Dark Energy Model with Electromagnetic Field based on Lyra Geometry f(R,T)引力在基于Lyra几何的Bianchi v型电磁场暗能量模型中的作用

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-09-01 DOI: 10.3329/jsr.v14i3.56416

B. P. Brahma, M. Dewri

引用次数: 0

Lifestyle and Dietary Factors Causing Microsatellite Instability Gastric Cancer Detected using Ensemble Modeling 生活方式和饮食因素导致微卫星不稳定的集成模型检测胃癌

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-09-01 DOI: 10.3329/jsr.v14i3.58331

S. K. Brindha, P. Charkarborthy, S. Chenkual, J. Zohmingthanga, J. Pautu, P. Nath, A. Maitra, N. S. Kumar, L. Hmingliana

{"title":"Lifestyle and Dietary Factors Causing Microsatellite Instability Gastric Cancer Detected using Ensemble Modeling","authors":"S. K. Brindha, P. Charkarborthy, S. Chenkual, J. Zohmingthanga, J. Pautu, P. Nath, A. Maitra, N. S. Kumar, L. Hmingliana","doi":"10.3329/jsr.v14i3.58331","DOIUrl":"https://doi.org/10.3329/jsr.v14i3.58331","url":null,"abstract":"Aim of this study is to identify diet and lifestyle patterns that cause microsatellite instability gastric cancer (MSI-GC) using supervised machine learning algorithms. There were 142 genetic variants acquired via targeted resequencing of 60 biomarker genes from gastric tumor samples and tabulated with respect to MSI status, diet and lifestyle characteristics. Four classifiers (logistic regression, random forest, logistic regression, multilayer perceptron) were used to train the data and evaluated based on their classification efficiency. Data analysis revealed features extracted using ridge regression: extra salt, smoked food, smokeless tobacco products (Khaini /sadha), alcohol and betel nut leaf with lime (khuva) were the core factors for causing MSI-GC. The extracted features were exploited using random forest and multilayer perceptron classifiers, which has produced accuracy, precision, recall, F1 score, and Receiver operating characteristics (ROC) curve of 96 %. The brier score was 0.04 and Matthews correlation coefficient (MCC) was +0.91. Linear regression results revealed khuva was main driving factor and extra salt, smoked food, khaini/sadha and alcohol were confounding factors to cause MSI-GC. This is a first-time report that integrates mutation and diet-lifestyle data using machine learning, to precisely identify the driving and confounding factors for causing MSI-GC.","PeriodicalId":16984,"journal":{"name":"JOURNAL OF SCIENTIFIC RESEARCH","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88870595","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}

引用次数: 0

Temperature-Dependent Ultrasonic Properties of Semiconducting M2CO2 (M= Ti, Zr, Hf) MXenes 半导体M2CO2 (M= Ti, Zr, Hf) MXenes的温度相关超声特性

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-09-01 DOI: 10.3329/jsr.v14i3.56976

P. Yadawa, N. Chaurasiya, S. Rai, A. Prajapati

{"title":"Temperature-Dependent Ultrasonic Properties of Semiconducting M2CO2 (M= Ti, Zr, Hf) MXenes","authors":"P. Yadawa, N. Chaurasiya, S. Rai, A. Prajapati","doi":"10.3329/jsr.v14i3.56976","DOIUrl":"https://doi.org/10.3329/jsr.v14i3.56976","url":null,"abstract":"Here, we have studied the elastic, ultrasonic, mechanical, and thermal behavior of temperature-dependent hexagonal oxygen-functionalized M2CO2 (M= Ti, Zr, Hf) MXenes. The higher-order linear and nonlinear elastic constants, viz., second-order (SOECs), and third-order (TOECs) have been computed using the Lenard Jones interaction potential model. For mechanical characterization, bulk modulus (B), shear modulus (G), Young's modulus (Y), Pugh's ratio (B / G), Poisson's ratio, and anisotropic index are evaluated using SOECs. Born's stability and Pugh's criteria are used to examine the nature and strength of the MXenes in all the temperatures. For the investigation of anisotropic behavior and its thermophysical properties, temperature-dependent ultrasonic velocities and thermal relaxation time have been calculated along with different orientations from the unique axis of the crystal. The ultrasonic attenuation (UA) of a longitudinal and shear wave due to phonon-phonon (p-p) interaction and thermoelastic relaxation mechanism were investigated for these oxygen-functionalized MXenes. Thermal conductivity is a principal contributor to the behavior of UA due to p-p interactions. Our analysis suggests that semiconductor Ti2CO2 MXenes show superior mechanical properties to other oxygen-functionalized MXenes. Computed elastic, ultrasonic, and thermal properties are correlated to evaluate the microstructural behavior of the materials useful for industrial applications.","PeriodicalId":16984,"journal":{"name":"JOURNAL OF SCIENTIFIC RESEARCH","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90544607","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}

引用次数: 0

Gravitoelectromagnetism and Gravitomagnetic Clock Effect 重力电磁学和重力磁钟效应

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-09-01 DOI: 10.3329/jsr.v14i3.57972

B. K. Chakravorti, S. B. Faruque

引用次数: 0

Effects on Unsteady MHD Flow of a Nanofluid for Free Convection past an Inclined Plate 斜板自由对流对纳米流体非定常MHD流动的影响

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-09-01 DOI: 10.3329/jsr.v14i3.58301

S. M. Gani, M. Y. Ali, M. A. Islam

引用次数: 0

Microstructure, Optical and Electrical Properties of Cu-Cu2O Core-Shell Nanostructures Cu-Cu2O核壳纳米结构的微观结构及光电性能

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-09-01 DOI: 10.3329/jsr.v14i3.58384

O. Mondal

{"title":"Microstructure, Optical and Electrical Properties of Cu-Cu2O Core-Shell Nanostructures","authors":"O. Mondal","doi":"10.3329/jsr.v14i3.58384","DOIUrl":"https://doi.org/10.3329/jsr.v14i3.58384","url":null,"abstract":"Composites of nanometre-sized copper core–copper oxide (Cu-Cu2O) shell with different diameters were synthesized by a facile one step co-solvent technique. By the analysis of X-ray diffraction (XRD) and transmission electron microscope (TEM) data, the resultant particles were confirmed to be pure and nanocrystalline in nature. The perfect core-shell structure of nanocrystalline Cu-Cu2O was confirmed by using high resolution TEM. The presence of pure Cu and Cu2O was further confirmed from optical absorbance spectrum and Fourier transform infrared (FT-IR) spectroscopy. The tailoring of position of optical absorption peaks, originating from Cu or Cu2O nanoparticles, is possible by modulating the oil to water ratio, which controls the size of the composite particles and thickness of Cu2O. Drastic change of electrical resistivity with change in thickness of shell, has been observed. Variation of resistivity with temperature delineates a semiconducting nature with two distinct activation processes. Results demonstrate that the activation energies for the core-shell nanostructure composites were found to be smaller than the bulk Cu2O. Photoluminescence spectrum further confirms the semiconducting nature of the composite. In addition, the kinetic of core-shell morphology formation is also discussed briefly.\u0000","PeriodicalId":16984,"journal":{"name":"JOURNAL OF SCIENTIFIC RESEARCH","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74794734","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}

引用次数: 0

A New Integral Transform “Rishi Transform” with Application 一种新的积分变换“日施变换”及其应用

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-05-06 DOI: 10.3329/jsr.v14i2.56545

R. Kumar, J. Chandel, S. Aggarwal

引用次数: 3

Effect of Symmetric Shaped Slot on Patch Antenna Design and Performance for 10 GHz 5G Applications 对称形槽对10ghz 5G贴片天线设计和性能的影响

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-05-06 DOI: 10.3329/jsr.v14i2.55209

K. K. Giri, R. Singh, K. Mamta

{"title":"Effect of Symmetric Shaped Slot on Patch Antenna Design and Performance for 10 GHz 5G Applications","authors":"K. K. Giri, R. Singh, K. Mamta","doi":"10.3329/jsr.v14i2.55209","DOIUrl":"https://doi.org/10.3329/jsr.v14i2.55209","url":null,"abstract":"A microstrip patch antenna is considered the most suitable radiating and receiving element for millimeter-wave application due to its low cost, simple construction, low weight, and ease with which it is integrated into the circuits. In this paper, we have reported the effects of different symmetric shaped slots on millimeter-wave patch antenna design and its performance at 10 GHz frequency in the X band (8-12 GHZ). The rectangular, circular, and elliptical slots area is kept constant at 11.2 mm2. The radius of circular and spherical slots is the same. High-frequency simulation software (HFSS) simulation results in parameters like S11 (reflection coefficient), Y-parameter (driving point admittance), Radiation Pattern, 3D Polar plot and illustrate that the results are in good agreement with the desired value. A rectangular slot is found to achieve the target resonance frequency with a low voltage standing wave ratio (VSWR) towards a ‘good match.’ Circular, spherical, and elliptical-shaped slots have high VSWR values, indicating a larger degree of mismatch. Surprisingly, results are obtained for the spherical-shaped slot, implying that the antenna will work at the target resonance frequency and has a Dual-Resonance. The proposed antenna design is suitable for 5G device applications in the X band.","PeriodicalId":16984,"journal":{"name":"JOURNAL OF SCIENTIFIC RESEARCH","volume":"574 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87046027","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}

引用次数: 0

Unsteady Heat and Mass Transfer Slip Flow over an Exponentially Permeable Stretching Sheet 非定常传热传质滑流的指数渗透拉伸片

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-05-06 DOI: 10.3329/jsr.v14i2.55577

M. A. Islam, M. Y. Ali, S. M. Gani

引用次数: 1

Synthesis Method of Hemp-Derived Graphene 大麻衍生石墨烯的合成方法

JOURNAL OF SCIENTIFIC RESEARCH Pub Date : 2022-05-06 DOI: 10.3329/jsr.v14i2.55694

M. Z. Hossain, S. Sutradhar, M. R. Karim

引用次数: 0