检索结果-南通市图书馆

Quantifying River Bank Erosion and Accretion Patterns along the Gorai River in Kushtia, Bangladesh: A Geospatial Analysis Utilizing GIs and Remote sensing Techniques

引用

Journal of Geographic Information system 2024年第1期16卷 70-88页

作者： Chisti Muzahid samsunnahar Popy Rifat Islam md. shafiqul Ahsan Emon md. selim Reja md. Mustafizur Rahman Jubayer Hoque md. Golam Rabbani saim Raiyan Department of Environmental science and Disaster Management Bangabandhu Sheikh Mujibur Rahman Science and Technology University Dhaka Bangladesh

River bank erosion is a natural process that occurs when the water flow of a river exceeds the bank’s ability to withstand it. It is a common phenomenon that causes extensive land damage, displacement of people, loss of crops, and infrastructure damage. The Gorai River, situated on the right bank of the Ganges, is a significant branch of the river that flows into the Bay of Bengal via the Mathumati and Baleswar rivers. The erosion of the banks of the Gorai River in Kushtia district is not a recent occurrence. Local residents have been dealing with this issue for the past hundred years, and according to the elderly members of the community, the erosion has become more severe activities. Therefore, the main objective of this research is to quantify river bank erosion and accretion and bankline shifting from 2003 to 2022 using multi-temporal Landsat images data with GIs and remote sensing technique. Bank-line migration occurs as a result of the interplay and interconnectedness of various factors such as the degree of river-related processes such as erosion, transportation, and deposition, the amount of water in the river during the high season, the geological and soil makeup, and human intervention in the river. The results show that the highest eroded area was 4.6 square kilometers during the period of 2016 to 2019, while the highest accreted area was 7.12 square kilometers during the period of 2013 to 2016. However, the erosion and accretion values fluctuated from year to year.

关键词： Erosion and Accretion Geographic Information system (GIs) Remote sensing satellite Image Bankline shifting

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Ca^(2+)-sensing receptor and the pocketome:comparing nature's complexity with human intervention in receptor modulation

引用

signal Transduction and Targeted Therapy 2024年第8期9卷 3153-3154页

作者： Edda s.F.Matthees Carsten Hoffmann Institut fur Molekulare Zellbiologie CMB-Center for Molecular BiomedicineUniversitatsklinikum JenaHans-Knoll StraBe 2D-07745 JenaGermany Friedrich-schiller-Universitat Jena Hans-KnollStraBe2D-07745 JenaGermany

In a recent paper published in Nature,the relatively understudied Ca^(2+)-sensing,receptor(CasR)within the Gprotein-coupled receptor(GPCR)family C,gained attention due to pioneering research led by Georgios skiniotis ... 详细信息

关键词： stanford gained skin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Designing an Effective Method for Automatic Electric Vehicle Charging stations in a static Environment

引用

Journal of Power and Energy Engineering 2024年第1期12卷 15-28页

作者： md. Robiul Islam Maisha Islam Tania sarkar Hanif Mia md. Asadullah Department of Electrical Engineering Hohai University Nanjing China Institute of science Trade & Technology (IsTT) Dhaka Bangladesh

This article outlines an Effective Method for Automatic Electric Vehicle Charging stations in a static Environment. It consists of investigated wireless transformer structures with various ferrite forms. WPT technology has rapidly advanced in the last few years. At kilowatt power levels, the transmission distance grows from a few millimeters to several hundred millimeters with a grid to load efficiency greater than 90%. The improvements have made the WPT more appealing for electric vehicle (EV) charging applications in both static and dynamic charging scenarios. static and dynamic WEVCs, two of the main applications, are described, and current developments with features from research facilities, academic institutions, and businesses are noted. Additionally, forthcoming concepts based WEVCs are analyzed and examined, including “dynamic” wireless charging systems (WCs). A dynamic wireless power transfer (DWPT) system, which can supply electricity to moving EVs, is one of the feasible alternatives. The moving secondary coil is part of the dynamic WPT system, which also comprises of many fixed groundside (primary) coils. An equivalent circuit between the stationary system and the dynamic WPT system that results from the stationary system is demonstrated by theoretical investigations. The dynamic WPT system’s solenoid coils outperform circular coils in terms of flux distribution and misalignment. The WPT-related EV wireless charging technologies were examined in this study. WPT can assist EVs in overcoming their restrictions on cost, range, and charging time.

关键词： Dynamic Wireless Power Transfer (DWPT) Wireless Charging system (WCs) Electric Vehicle (EV) Dynamic Performance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rural Resilience: A Comprehensive study on Water supply, sanitation, Disease Patterns, and Hygiene Practices in Munshiganj, Bangladesh

引用

Journal of Environmental Protection 2024年第1期15卷 63-75页

作者： Jubayer Hoque Rifat Islam md. Mustafizur Rahman md. Golam Rabbani md. selim Reja saifur Rahman soykat saim Raiyan md. shafiqul Ahsan Emon sakil Khan Department of Environmental science and Disaster Management Bangabandhu Sheikh Mujibur Rahman Science and Technology University Gopalgnj Bangladesh Department of Political science Bangabandhu Sheikh Mujibur Rahman Science and Technology University GopalgnjBangladesh Department of statistics Bangabandhu Sheikh Mujibur Rahman Science and Technology University Gopalgnj Bangladesh

This research project investigates the current status of water supply, sanitation, and hygiene practices in Munshiganj District, Bangladesh. Data collection involved a structured questionnaire and a reconnaissance survey. Findings reveal that 30% of individuals rely on surface water (hand-tube wells, rivers, and ponds), prioritized as canal > river > pond, while 70% depend on groundwater (subterranean electric motor, deep tube-well). Drinking water is generally sufficient, with 95% reporting adequacy throughout the year. About 45% use hand tube-well water, 28% use deep tube-well water, and 11% use supply tap water for various purposes. Bathing trends include underground water through electric motor > pond > hand tube-well water > river, while for cooking, the order is underground water through electric motor > pond > hand tube-well water > river. Toilet water supply ranks as supply tap water > hand tube-well water > deep tube-well water. Although sanitation awareness is high, some lack knowledge of good hygiene practices. After defecating, handwashing methods include soap, ash, soil, or water. Children’s waste disposal varies, with some discarding it in open areas. Approximately 40% suffer from diseases like Diarrhoea due to unsafe water, primarily affecting children and elders. Training exists, but a significant portion lacks sanitation education. Dry skin or exposure to cold water may cause temporary irritation. Local government involvement in sanitation efforts is less active compared to non-governmental organizations. Results emphasize the need to enhance community awareness of safe water supplies and sanitation practices. .

关键词： Water supply sanitation Practices Hygiene Awareness Groundwater Dependency Community Health Intervention

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Implications of Elevated serum Cortisol in the Onset of Postoperative Delirium Following Off-Pump Coronary Artery Bypass Grafting: Insights from a Bangladesh-Based single Center Experience

引用

World Journal of Cardiovascular Diseases 2024年第4期14卷 252-267页

作者： Vivek Kumar Jha md Abir Tazim Chowdhury Munama Magdum Manoj Tiwari md Abul Bashar Maruf md saiful Islam Khan Priyanka sinha Rajesh Naryan Kapar md. Rezwanul Hoque Department of Cardiothoracic and Vascular surgery BP Koirala Institute of Health Sciences Dharan Nepal Department of Cardiothoracic and Vascular surgery Evercare Hospital Dhaka Dhaka Bangladesh Department of Preventive and social Medicine National Institute of Preventive and Social Medicine Dhaka Bangladesh Department of Thoracic surgery BP Koirala Memorial Cancer Hospital Bharatpur Nepal Department of Cardiac surgery United Hospital Limited Dhaka Bangladesh Department of Cardiothoracic Anesthesia Evercare Hospital Dhaka Dhaka Bangladesh Department of Microbiology Kathmandu Medical College Kathmandu Nepal Department of Nephrology Bangabandhu Sheikh Mujib Medical University Dhaka Bangladesh Department of Cardiac surgery Bangabandhu Sheikh Mujib Medical University Dhaka Bangladesh

Background: Following coronary artery bypass grafting (CABG), delirium emerges as a prevalent complication. This study aimed to assess the correlation between elevated serum cortisol levels and the occurrence of postoperative delirium subsequent to off-pump CABG. Methods: Conducted in the Department of Cardiac surgery at BsMMU from October 2020 to september 2022, this comparative cross-sectional study included a total of 44 participants. subjects, meeting specific criteria, were purposefully assigned to two groups based on off-pump CABG. Group A (n = 22) consisted of patients with normal serum cortisol levels, while Group B (n = 22) comprised individuals with high serum cortisol levels on the first postoperative day. Delirium onset was assessed at the bedside in the ICU on the 1st, 2nd, 3rd, 4th, and 5th postoperative days using standard tools, namely the Richmond Agitation sedation score (RAss) and The Confusion Assessment Method (CAM-ICU). Data were collected based on the presence or absence of delirium. statistical analysis utilized sPss version 26.0, employing an independent student’s t-test for continuous data and chi-square and Fischer’s exact test for categorical data. A p-value ≤ 0.05 was considered statistically significant. Results: Group-A had a mean age of 54.50 ± 17.97, and Group-B had a mean age of 55.22 ± 15.45, both with a male predominance (81.81% and 86.36% respectively). The mean serum cortisol level was significantly higher in Group B (829.71 ± vs. 389.98 ± 68.77). Postoperative delirium occurred in 27.3% of Group B patients, statistically significant compared to the 4.5% in Group A. However, patients in Group B who developed delirium experienced significantly longer postoperative ICU and hospital stays (79.29 ± 12.27 vs. 11.44 ± 2.85, p ≤ 0.05). There was one mortality in Group B, which was statistically not significant. Conclusion: This study observed a significant association between elevated serum cortisol levels in the postoperative period a

关键词： Coronary Artery Bypass Grafting (CABG) serum Cortisol Postoperative Delirium Bangladesh

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

sleep-based neuronal oscillations as a physiological biomarker for Alzheimer's disease:is night time the right time?

引用

Neural Regeneration Research 2024年第7期19卷 1417-1418页

作者： Jonathan Witton Erica s.Brady Michael T.Craig Department of Clinical and Biomedical sciences Faculty of Health and Life SciencesUniversity of ExeterExeterEnglandUK Gladstone Institute for Neurological Disease San FranciscoCAUSA school of Psychology and Neuroscience College of MedicalVeterinary and Life SciencesUniversity of GlasgowGlasgowScotlandUK

Dementia is a devastating syndrome characterized by memory problems,confusion,and behavior changes that prevent people from performing everyday *** is the leading cause of dependency and disability amongst older people,resulting in a global economic cost of ~$1.3 *** 58 million people are currently afflicted by dementia worldwide,with Alzheimer s disease(AD) causing most(60-70%) of these cases.

关键词： Alzheimer everyday performing

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Eu3+,Bi3+,and Li+ doping on luminescent property of GdNbO4

引用

Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.W.Wi Y.s.Lee Department of Physics and Integrative Institute of Basic sciences Soongsil University

We investigated the emission properties of Eu3+-doped GdNbO4-based oxide phosphors,aiming at improving the Eu3+emission by codoping of Bi3+and Li+.Eu3+singly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared using a high-temperature solid-state reaction *** red-orange emissions from Eu3+in the singly doped samples are significantly improved by the codoping of Bi3+,mainly due to the energy transfer from Bi3+to Eu3+.The additional codoping of Li+is found to increase the Eu3+emission *** improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show that the local lattice environment around Eu3+in GdNbO4does not change significantly with the codoping of Bi3+and Li+.Our results indicate that Li+doping is a promising way to improve the emission properties of rare-earth ion-doped GdNbO4phosphors.

关键词： Eu 3+ GdNbO 4 Codoping of Li + Photoluminescence sensitizer Rare earths

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Lexicon and Deep Learning-Based Approaches in sentiment Analysis on short Texts

引用

Journal of Computer and Communications 2024年第1期12卷 11-34页

作者： Taminul Islam md. Alif sheakh md. Rezwane sadik Mst. sazia Tahosin md. Musfiqur Rahman Foysal Jannatul Ferdush Mahbuba Begum Department of Computer science and Engineering Daffodil International University Dhaka Bangladesh Department of Computer science Southern Illinois University Carbondale IL USA Department of Economics & Decision sciences University of South Dakota Vermillion SD USA Department of Computer science and Engineering Jashore University of Science and Technology Jashore Bangladesh Department of Computer science and Engineering Mawlana Bhashani Science and Technology University Tangail Bangladesh

social media is an essential component of our personal and professional lives. We use it extensively to share various things, including our opinions on daily topics and feelings about different subjects. This sharing of posts provides insights into someone’s current emotions. In artificial intelligence (AI) and deep learning (DL), researchers emphasize opinion mining and analysis of sentiment, particularly on social media platforms such as Twitter (currently known as X), which has a global user base. This research work revolves explicitly around a comparison between two popular approaches: Lexicon-based and Deep learning-based Approaches. To conduct this study, this study has used a Twitter dataset called sentiment140, which contains over 1.5 million data points. The primary focus was the Long short-Term Memory (LsTM) deep learning sequence model. In the beginning, we used particular techniques to preprocess the data. The dataset is divided into training and test data. We evaluated the performance of our model using the test data. simultaneously, we have applied the lexicon-based approach to the same test data and recorded the outputs. Finally, we compared the two approaches by creating confusion matrices based on their respective outputs. This allows us to assess their precision, recall, and F1-score, enabling us to determine which approach yields better accuracy. This research achieved 98% model accuracy for deep learning algorithms and 95% model accuracy for the lexicon-based approach.

关键词： Opinion Mining Lexicon Analysis Twitter Data LsTM Machine Learning

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Numerical study and Optimization of CZTs-Based Thin-Film solar Cell structure with Different Novel Buffer-Layer Materials Using sCAPs-1D software

引用

Energy and Power Engineering 2024年第4期16卷 179-195页

作者： md. Zamil sultan Arman shahriar Rony Tota md. Nuralam Howlader Hasibul Haque Rodro Mahfuja Jannat Akhy md. Abir Al Rashik Department of Electrical and Electronic Engineering Hajee Mohammad Danesh Science and Technology University Dinajpur Bangladesh

This study explored the performances of CZTs-based thin-film solar cell with three novel buffer layer materials Zns, Cds, and CdZns, as well as with variation in thickness of buffer and absorber-layer, doping concentrations of absorber-layer material and operating temperature. Our aims focused to identify the most optimal thin-film solar cell structure that offers high efficiency and lower toxicity which are desirable for sustainable and eco-friendly energy sources globally. sCAPs-1D, widely used software for modeling and simulating solar cells, has been used and solar cell fundamental performance parameters such as open-circuited voltage (), short-circuited current density (), fill-factor() and efficiency() have been optimized in this study. Based on our simulation results, it was found that CZTs solar cell with Cdsub>0.4sub>Znsub>0.6sub>s as buffer-layer offers the most optimal combination of high efficiency and lower toxicity in comparison to other structure investigated in our study. Although the efficiency of Cdsub>0.4sub>Znsub>0.6sub>s, Zns and Cds are comparable, Cdsub>0.4sub>Znsub>0.6sub>s is preferable to use as buffer-layer for its non-toxic property. In addition, evaluation of performance as a function of buffer-layer thickness for Cdsub>0.4sub>Znsub>0.6sub>s, Zns and Cds showed that optimum buffer-layer thickness for Cdsub>0.4sub>Znsub>0.6sub>s was in the range from 50 to 150nm while Zns offered only 50 – 75 nm. Furthermore, the temperature dependence performance parameters evaluation revealed that it is better to operate solar cell at temperature 290K for stable operation with optimum performances. This study would provide valuable insights into design and optimization of nanotechnology-based solar energy technology for minimizing global energy crisis and developing eco-friendly energy sources sustainable and simultaneously.

关键词： Thin-Film solar Cell CZTs Buffer-Layer Renewable Energy Green-House Gases Efficiency

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applying the Technology Acceptance Model (TAM) in Information Technology system to Evaluate the Adoption of Decision support system

引用

Journal of Computer and Communications 2024年第8期12卷 242-256页

作者： md Azhad Hossain Anamika Tiwari sanchita saha Ashok Ghimire md Ahsan Ullah Imran Rabeya Khatoon Department of Business Administration International American University 3440 Wilshire Blvd STE 1000 Los Angeles CA 90010 United States Department of Business Administration Westcliff University 17877 Von Karman Ave 4th Floor Irvine CA 92614 United States

With the beginning of the information systems’ spreading, people started thinking about using them for making business decisions. Computer technology solutions, such as the Decision support system, make the decision-making process less complex and simpler for problem-solving. In order to make a high-quality business decision, managers need to have a great deal of appropriate information. Nonetheless, this complicates the process of making appropriate decisions. In a situation like that, the possibility of using Dss is quite logical. The aim of this paper is to find out the intended use of Dss for medium and large business organizations in UsA by applying the Technology Acceptance Model (TAM). Different models were developed in order to understand and predict the use of information systems, but the information systems community mostly used TAM to ensure this issue. The purpose of the research model is to determine the elements of analysis that contribute to these results. The sample for the research consisted of the target group that was supposed to have completed an online questionnaire about the manager’s use of Dss in medium and large American companies. The information obtained from the questionnaires was analyzed through the sPss statistical software. The research has indicated that, this is primarily used due to a significant level of Perceived usefulness and For the Perceived ease of use.

关键词： Information Technology Decision support system Business Organization in UsA Technology Acceptance Model

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：