Jagannath University Journal of Science最新文献

Analysis of Local Bifurcations in One-Dimensional Systems 一维系统中的局部分岔分析

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i2.71263

Md Asraful Islam

引用次数: 0

Impact of Rice Husk Ash on the Compaction Characteristics of Soil 稻壳灰对土壤压实特性的影响

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i2.71258

N. Nahar, Sayful Kabir Khan, Z. Hossain

引用次数: 0

Heat Transfer Characteristics of Al2O3-Cu/Water Hybrid Nanofluid inside a Square Cavity in the Presence of Inclined Periodic Magnetic Field 倾斜周期磁场下方形空腔内的 Al2O3-Cu/Water 混合纳米流体的传热特性

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i2.71257

Md Nurul Huda, Md Shariful Alam, S. M. C. Hossain

{"title":"Heat Transfer Characteristics of Al2O3-Cu/Water Hybrid Nanofluid inside a Square Cavity in the Presence of Inclined Periodic Magnetic Field","authors":"Md Nurul Huda, Md Shariful Alam, S. M. C. Hossain","doi":"10.3329/jnujsci.v10i2.71257","DOIUrl":"https://doi.org/10.3329/jnujsci.v10i2.71257","url":null,"abstract":"The goal is to scrutinize the thermal features of hybrid nanofluid in a square cavity with the effect of oblique periodic magnetic field. The modified hybrid nanofluid is a combination of nanoparticles , and base fluid water with equal volume fraction of and The finite element method based Galerkin weighted residual scheme is chosen to find the solution of the non-dimensional governing equations. The effects of different model factors such as oblique angle and period of the periodic magnetic field, Hartmann number, Rayleigh number, nanoparticles volume fraction on the heat transfer are scrutinized. The outcomes are exhibited with the help of isotherms and average Nusselt number as well. The numerical results show that when the period of the slanted periodic magnetic field increases gradually, the distinct model factors (Rayleigh number, nanoparticles volume fraction, and slanting angle) raise the heat transfer rate progressively, whereas augmentation of the Hartmann number diminutions the entire heat transfer rate.\u0000Jagannath University Journal of Science, Volume 10, Number II, Dec. 2023, pp. 75-86","PeriodicalId":516949,"journal":{"name":"Jagannath University Journal of Science","volume":"39 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139895382","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

Effectiveness of Cognitive Behavior Group Therapy in Reducing the Risk of Eating Disorder among University Students 认知行为团体疗法对降低大学生饮食失调风险的效果

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i2.71264

F. Zaman, Shahriar Hasan Rakib

{"title":"Effectiveness of Cognitive Behavior Group Therapy in Reducing the Risk of Eating Disorder among University Students","authors":"F. Zaman, Shahriar Hasan Rakib","doi":"10.3329/jnujsci.v10i2.71264","DOIUrl":"https://doi.org/10.3329/jnujsci.v10i2.71264","url":null,"abstract":"Eating disorders are serious mental illnesses that typically originate during adolescence, often persist over an extended period, and significantly affect one's overall well-being. These disorders contribute significantly to the worldwide health burden. Despite a rising number of individuals seeking treatment for eating disorders, there is limited study regarding the effectiveness of therapy in preventive measures of the risk of eating disorders. Therefore, this research aims to study the effectiveness of cognitive behavior group therapy (CBGT) in reducing the risk of eating disorders among university students. Using a pretest-posttest with a control group design. The adapted Bangla version of the Eating Attitude Test (EAT-26) was utilized and socio-demographic data for all participants at the baseline and post-intervention. Thirty-six participants i.e., university students with a risk of eating disorders were chosen by purposive sampling. Participants were randomly assigned into two groups (intervention and non-intervention groups). However, the experimental (intervention) group (n = 18) received cognitive behavioral group therapy, and the control also known as the non-interventional group (n = 18) did not. To analyze the obtained data descriptive statistics, independent sample t-test, and paired sample t-test were performed. Findings showed that receiving CBGT sessions significantly reduced eating disorder risk in the intervention group. However, there is no difference in the risk of eating disorders in the pre-test and post-test of the non-intervention group was observed. This study's findings emphasize the importance and effectiveness of cognitive behavior group therapy in addressing and mitigating the risk of eating disorders among university students.\u0000Jagannath University Journal of Science, Volume 10, Number II, Dec. 2023, pp. 124−135","PeriodicalId":516949,"journal":{"name":"Jagannath University Journal of Science","volume":"269 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139896077","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

Positivity Expansion to Signed Solution for Doubly Nonlinear Parabolic Equations 双非线性抛物方程符号解的正性展开

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i1.71256

Md Abu Hanif Sarkar

引用次数: 0

The Characteristic Behavior and Bifurcation of the Cubic Map 立体地图的特征行为和分岔

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i1.71163

Md Asraful Islam

引用次数: 0

A High-Performance Split Ring Resonator Based Slotted Microstrip Patch Antenna for Fifth Generation Communications 用于第五代通信的基于开槽微带贴片天线的高性能分环谐振器

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i2.71262

Nurul Amin Nahid, Md. Pias Khan, Md. Ashik Jiddney, Mahbubur Rahman, M. Samsuzzaman, Md. Zulfiker Mahmud

引用次数: 0

Land Cover Change using GIS and RS Techniques of the Padma River Floodplain in the Three Adjacent Districts in Bangladesh 利用地理信息系统和 RS 技术研究孟加拉国三个邻近地区帕德玛河洪泛区的土地覆盖变化

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i1.71249

Sameena Begum, Sultana Jahan Ophra, Arafat Hossain, Md Tasim Ferdous, Farhan Ahmed Rafid

{"title":"Land Cover Change using GIS and RS Techniques of the Padma River Floodplain in the Three Adjacent Districts in Bangladesh","authors":"Sameena Begum, Sultana Jahan Ophra, Arafat Hossain, Md Tasim Ferdous, Farhan Ahmed Rafid","doi":"10.3329/jnujsci.v10i1.71249","DOIUrl":"https://doi.org/10.3329/jnujsci.v10i1.71249","url":null,"abstract":"Bangladesh is a nation characterized by its reliance on river systems for various aspects of its socio-economic and geographical features. The region experiences a significant number of natural disasters every year as a result of the existence of the river. The region undergoes regular riverbank erosion as a result of the continuous changing of river channels. This study aimed to assess the changing of the Padma River and its impact on land use and land cover in the three adjacent districts of Munshiganj, Madaripur, and Shariatpur. Geographic Information System (GIS) along with remote sensing (RS) techniques were employed to analyze data collected between 1988 and 2023. Best results in detecting land-use/land-cover type and identifying erosional impact were achieved using K-means cluster unsupervised image classification. The accuracy of image preprocessing and classification was separately evaluated using the kappa coefficient. For the years 1988, 1993, 1998, 2003, 2008, 2013, 2017, and 2023, the findings indicated an overall accuracy of 86.36%, 83.32%, 87.1%, 85.43%, 87.3%, 87.92%, 88.42%, 90.06% and a kappa coefficient of 83.02%, 83.32%, 86.66%,85.37%, 87.78%, 87.29%, 87.91%, 86.59% respectively. Arable land accounted for 56.40 percent of the overall accreted land area (26340.06 ha), whereas cropland accounted for just 5.99 percent (2798.10 ha) based on long-term river channel migration results. In 35 years, arable land (23661.21 ha) suffered the most erosion (55.42%), followed by inland water (3351.53 ha), which suffered the least (7.15%). The implementation of an embankment inside the research area is proposed as a potentially efficacious strategy for mitigating riverbank erosion in this particular region. The government may implement long-term rehabilitation projects to support individuals who have been displaced by bank erosion and are now landless.\u0000Jagannath University Journal of Science, Volume 10, Number I, Jun. 2023, pp. 43-54","PeriodicalId":516949,"journal":{"name":"Jagannath University Journal of Science","volume":"32 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139895349","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

The Effectiveness of Psychoeducation on Depression Literacy and Psychological Well-being of University Students 心理教育对大学生抑郁素养和心理健康的影响

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i1.71143

Sayema Rahman Rathi, Md Abu Hurayra Prince, Bijon Baroi, Md. Rony Hossan, Kishor Roy, Noor Muhammad

{"title":"The Effectiveness of Psychoeducation on Depression Literacy and Psychological Well-being of University Students","authors":"Sayema Rahman Rathi, Md Abu Hurayra Prince, Bijon Baroi, Md. Rony Hossan, Kishor Roy, Noor Muhammad","doi":"10.3329/jnujsci.v10i1.71143","DOIUrl":"https://doi.org/10.3329/jnujsci.v10i1.71143","url":null,"abstract":"Today’s modern life is a challenging issue for human beings, particularly those who have mental illnesses like depression, requiring awareness-related programs for increasing their Depression Literacy (D-Lit) and Psychological Well-being (PWB). To mark the gap, we planned to investigate the effect of web-based psychoeducation on literacy regarding depression and psychological well-being. A total of 100 depressed students were included in the sampling frame, purposively selected based on some inclusion and exclusion criteria from Jagannath University. The study was accomplished by following a pretest-posttest with a control group design where data were collected using Depression, Depression Literacy (D-Lit), and Psychological Well-being questionnaires along with a personal information form. The data were analyzed by applying an independent sample t-test, paired sample t-test, and ANCOVA. Results revealed that the level of D-Lit and PWB of the depressed students significantly increased in the post-test as compared to the pre-test in the experimental group, but no significant changes in the control group, indicating psychoeducation has an effect on increasing D-Lit and PWB. This finding explored that psychoeducation can be an immediate awareness program for improving depression-related knowledge and psychological well-being in the community. The applications of these outcomes for investigation and practice are discussed. \u0000Jagannath University Journal of Science, Volume 10, Number I, Jun 2023, pp. 1−10","PeriodicalId":516949,"journal":{"name":"Jagannath University Journal of Science","volume":"81 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139895366","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

Hydromagnetic Convective Heat Transfer in a Square Cavity Filled with Fe3O4-Water Nanofluid Saturated Porous Medium 填充了 Fe3O4-水纳米流体饱和多孔介质的方形空腔中的水磁对流传热

Jagannath University Journal of Science Pub Date : 2024-02-07 DOI: 10.3329/jnujsci.v10i2.71266

Md Shariful Alam, Md Nurul Huda, S. M. C. Hossain

{"title":"Hydromagnetic Convective Heat Transfer in a Square Cavity Filled with Fe3O4-Water Nanofluid Saturated Porous Medium","authors":"Md Shariful Alam, Md Nurul Huda, S. M. C. Hossain","doi":"10.3329/jnujsci.v10i2.71266","DOIUrl":"https://doi.org/10.3329/jnujsci.v10i2.71266","url":null,"abstract":"A numerical study is carried out to demonstrate the heat transmission events of nanofluid in a square cavity saturated by aluminum foam porous medium under the effect of slanted periodic magnetic field. The cavity wall is heated from left and cooled from right while horizontal walls are supposed to be adiabatic. The Brownian motion of nanoparticle is taken into consideration in the thermal conductivity model construction. The dimensionless governing equations including Darcy-Brinkman model are solved by Galerkin-FEM. The outcomes are exposed with depictions of streamlines, isotherms and average Nusselt numbers. The numerical investigation is performed for parameters: Darcy number, Rayleigh number, Hartmann number, porosity, leaning angle of the periodic magnetic field, period number, and nanoparticle volume fraction. The heat transfer rate upsurges noticeably for the rise of nanoparticle volume fraction, period number, Darcy number and Rayleigh number but the reverse trend is found for the parameter Hartmann number as well as porosity. From the acquired numerical outcomes, the maximum rate of heat transfer is attained at δ=π/4 when λ = 1.\u0000Jagannath University Journal of Science, Volume 10, Number II, Dec. 2023, pp. 145-158","PeriodicalId":516949,"journal":{"name":"Jagannath University Journal of Science","volume":"147 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139895523","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