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COVID-19 Detection from Chest X-Ray Images Using Convolutional Neural Network Approach

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Journal of Computer and Communications 2023年第5期11卷 29-41页

作者： md. harun or rashid Muzakkir Hossain Minhaz Ananya Sarker Must. Asma Yasmin md. Golam An Nihal Department of Computer Science and Engineering Bangladesh Army University of Engineering & Technology (BAUET) Qadirabad Cantonment Natore Bangladesh

COVID-19 is a respiratory illness caused by the SARS-CoV-2 virus, first identified in 2019. The primary mode of transmission is through respiratory droplets when an infected person coughs or sneezes. Symptoms can range from mild to severe, and timely diagnosis is crucial for effective treatment. Chest X-Ray imaging is one diagnostic tool used for COVID-19, and a Convolutional Neural Network (CNN) is a popular technique for image classification. In this study, we proposed a CNN-based approach for detecting COVID-19 in chest X-Ray images. The model was trained on a dataset containing both COVID-19 positive and negative cases and evaluated on a separate test dataset to measure its accuracy. Our results indicated that the CNN approach could accurately detect COVID-19 in chest X-Ray images, with an overall accuracy of 97%. This approach could potentially serve as an early diagnostic tool to reduce the spread of the virus.

关键词： COVID-19 Chest X-Ray Images CNN Virus Accuracy

Towards Mining Public Opinion: An Attention-Based Long Short Term Memory Network Using Transfer Learning

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Journal of Computer and Communications 2022年第6期10卷 112-131页

作者： G. M. Sakhawat Hossain md. harun or rashid md. Rafiqul Islam Ananya Sarker Must. Asma Yasmin Department of Computer Science and Engineering Rangamati Science and Technology University Rangamati Bangladesh Department of Computer Science and Engineering Bangladesh Army University of Engineering and Technology Qadirabad Bangla-desh

The Internet provides a large number of tools and resources, such as social media sites, online newsgroups, blogs, electronic forums, virtual communities, and online travel sites, for consumers to express their views or opinions regarding various issues. These opinions can help organizations like tourism to improve their products and services for their consumers. Opinion mining refers to a process of identifying emotions by applying Natural Language Processing (NLP) techniques to a pool of texts. This paper mainly focuses on mining public opinion from the hotel reviews domain. To do so, we proposed a novel technique called the Attention-Based Long Short Term Memory (Attention-LSTM) Network using a transfer learning approach. We empirically analyzed several machine learning and deep learning methods and observed our proposed technique provided an adequate performance for mining public opinion in the hotel reviews domain.

关键词： Opinion Mining Deep Learning Word2Vec Attention-LSTM Transfer Learning

Relationship between Seed Priming Mediated Seedling Vigor and Yield Performance of Spring Wheat

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Phyton-International Journal of Experimental Botany 2024年第6期93卷 1159-1177页

作者： md.Parvez Anwar Masuma Akhter Sharmin Aktar Sinthia Afsana Kheya A.K.M.Mominul Islam Sabina Yeasmin Ahmed Khairul Hasan md.harun Or rashid Department of Agronomy Bangladesh Agricultural UniversityMymensingh2202Bangladesh

Seed priming is a pre-germinated technique that can enhance seed germination percentage,faster and synchro-nized germination,better seedling growth,and yield under stress *** ascertain the most effective seed priming method that would ensure the potential yield of wheat in Bangladesh,two experiments were carried out from December 2021 to March 2022 at the Department of Agronomy,Bangladesh Agricultural *** wheat varieties namely BARI Gom-28 and BWMRI Gom-1 were subjected to a range of priming chemicals in both lab and pot *** compounds included the following:control(no priming),hydropriming(distilled water),10000 ppm KNO_(3),15000 ppm KNO_(3),40000 ppm Mannitol,60000 ppm Mannitol,10000 ppm NaCl,20000 ppm NaCl,100 ppm PEG,150 ppm PEG,500 ppm NaOCl,1000 ppm NaOCl,10000 ppm CaCl_(2),20000 ppm CaCl_(2),10000 ppm KCl and 20000 ppm KCl.A complete randomized design(CRD)with three repli-cations was used to set up the *** results showed that BARI Gom-28 and BWMRI Gom-1 responded best to KCl priming in terms of rapid seed germination and strong seedling *** the other hand,the best priming agents for plant growth and productivity turned out to be CaCl_(2) and *** results of this study support the possibility of using seed priming as a technique to improve wheat plant development and output by raising seed emergence and survival rates.

关键词： Priming seedling percentage germination growth yield wheat

An Efficient Approach for Transforming Unbalanced Transportation Problems into Balanced Problems in Order to Find Optimal Solutions

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American Journal of Operations Research 2024年第1期14卷 74-86页

作者： Abdur rashid md. Amirul Islam Department of Mathematics Jahangirnagar University Dhaka Bangladesh Department of Mathematics Uttara University Dhaka Bangladesh

In operations research, the transportation problem (TP) is among the earliest and most effective applications of the linear programming problem. Unbalanced transportation problems reflect the reality of supply chain and logistics situations where the available supply of goods may not precisely match the demand at different locations. To deal with an unbalanced transportation problem (UTP), it is essential first to convert it into a balanced transportation problem (BTP) to find an initial basic feasible solution (IBFS) and hence the optimal solution. The present paper is concerned with introducing a new approach to convert an unbalanced transportation problem into a balanced one and as a consequence to obtain optimum total transportation cost. Numerical examples are provided to demonstrate the suggested method.

关键词： Unbalanced Transportation Problem (UTP) Supply Demand Initial Solution Optimal Solution

A Critical Evaluation of the Role of Routine Uses of Statin as a Tool for Primary Prevention of Cardiovascular Diseases

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Open Journal of Preventive Medicine 2016年第4期6卷 133-142页

作者： Irtiza Hasan Tasnuva rashid md. harun Ur rashid Bhuiyan Cardiology Canterbury Christ Church University Kent UK Internal Medicine The University of Edinburgh Edinburgh UK Department of Epidemiology School of Public Health The University of Texas HSC Houston TX USA Clinical & Interventional Cardiology Z. H. Sikder Cardiac Care & Research Centre Dhaka Bangladesh

Use of Statin is a cornerstone in modern day medical practice and an essential component for primary prevention of cardiovascular diseases (CVD). Various evidences exemplify and resonate the importance of Statins in reducing CVD mortality and improvement of survivability. However, there is a continental variation in recent guidelines directing lipid-lowering therapy in regards to aim, dose, timing as well as the protocol for initiation of therapy. Similar uncertainties exist with regards to the generalizability of the finding from available evidence, a variation of benefits of Statin with respect to age and gender, the validity of the research conducted and actual gain in survivability and mortality benefits. Thus, there is a need for looking at the actual indications, risk-benefit ratios and cost effectiveness before tediously prescribing Statin for the primary prevention of CVDs. This paper will attempt to critically review the evidence behind the uses of Statins in the primary prevention of CVDs.

关键词： Statin Cholesterol Cardiovascular Diseases Primary Prevention

PCI in Post Thrombolysis Stable STEMI Patients: A Timeline in Question

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World Journal of Cardiovascular Diseases 2015年第12期5卷 335-342页

作者： Irtiza Hasan Tasnuva rashid md. harun Ur rashid Bhuiyan Cardiology University of Canterbury Christ Church University Kent UK Internal Medicine The University of Edinburgh Edinburgh UK Department of Epidemiology The University of Texas HSC at Houston School of Public Health Texas USA Clinical & Interventional Cardiology Z.H. Sikder Cardiac Care & Research Centre Dhaka Bangladesh

ST elevation myocardial infarction (STEMI) occupies a significant portion of the cardiovascular disease spectrum and poses a continuing challenge on the health care delivery system worldwide. A dilemma exists in the clinical triage system for appropriate strategic modalities of treatment, based on underlying triad of patient-hospital-cardiac pathological factors as well as cut off timelines. Current European Society of Cardiology (ESC) guideline recommends percutaneous coronary intervention (PCI) within 3 to 24 hours in post thrombolysis stable patients. This review critically evaluated the evidences underlying the ESC recommendation. Trials included in this review are SIAM III, GRACIA 1, CAPITAL-AMI, CARESS-IN-AMI, NORDISTEMI, PRAGUE-1, WEST and LEIPZIG. Most of the evidences support the notion for immediate post thrombolysis PCI in stable patients within 1.9 to 2.7 hours, which contradicts the ESC timeline of up to 24 hours. Also, there is a reduced generalizability of the trial results due to differences in the design of the various trials, study population, composite endpoints, variations in drug dose & formulation, co-administration of pharmacotherapies and type of stents used. This warrants further research for standardization & optimization of the treatment protocol with respect to post thrombolysis PCI in stable STEMI patients.

关键词： ST-Elevation Myocardial Infarction (STEMI) Percutaneous Coronary Intervention (PCI) Thrombolysis European Society of Cardiology (ESC) Guideline

Routine Primary PCI;Whether and When Necessary for the Management of NSTEMI—An Evidence Based Evaluation

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World Journal of Cardiovascular Diseases 2015年第12期5卷 343-350页

Non ST elevated myocardial infarction (NSTEMI) accounts for a significant portion of the hospitalizations due to acute coronary syndromes worldwide and is posing a huge challenge towards the health care cost globally. This signifies the need for proper triage and management stratification for the best utilization of the health care resources. Primary Percutaneous Coronary Intervention (PCI) with early revascularization is a new emerging invasive technique and application of this technique is increasing tediously among the clinicians. However, the current body of evidences is divided between the efficacy, need and critical timing of PCI compared to conservative management in the treatment protocol for NSTEMI. A review of trials done comparing the early use of PCI versus conservative management indicates inconsistent finding with strong evidence towards early use of PCI in moderate to high-risk NSTEMI patients.

关键词： Non ST-Elevation Myocardial Infarction (NSTEMI) Percutaneous Coronary Intervention (PCI)

NYHA Class II or III Heart Failure: Who Will Need an Implantable Cardioverter Defibrillator (ICD)?

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World Journal of Cardiovascular Diseases 2016年第10期6卷 372-381页

作者： Irtiza Hasan Muhammad Tofazzal Hossain md. harun Ur rashid Bhuiyan Cardiology Canterbury Christ Church University Canterbury UK Internal Medicine The University of Edinburgh Edinburgh UK Cardiology Universal Medical College Dhaka Bangladesh Clinical & Interventional Cardiology Z.H. Sikder Cardiac Care & Research Centre Dhaka Bangladesh

Sudden cardiac death (SCD) is one of the most debilitating and life-threatening complications of heart failure (HF) which has challenged medical care for long. Current guidelines suggest the use of Implantable Cardioverter Defibrillator (ICD) in primary prevention of SCD in both New York Heart Association (NYHA) class II and class III heart failure. This paper critically evaluated the evidence underlying the guideline recommendation. In contrast to recent guidelines, the majority of the intervention trials conducted on the topic till date found a promising role of ICD only in the prevention of SCD in NYHA class II HF. One of the trials which found a significant role of ICD in type III heart failure was underpowered. Thus, further trials are needed to validate the use of ICD in the prevention of SCD in type III HF.

关键词： Heart Failure Sudden Cardiac Death Implantable Cardioverter Defibrillator ICD NYHA ESC

Graphene oxide-coated microbottle resonators for relative humidity sensing

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Optoelectronics Letters 2024年第7期20卷 400-405页

作者： Huda Adnan Zain Malathy Batumalay md.Ashadi md.Johari Hazli Rafis Abdul Rahim Sulaiman Wadi harun Department of Electrical Engineering Faculty of Engineering University of Malaya Faculty of Data Science and Information Technology INTI International University Faculty of Electrical and Electronic Engineering Technology Universiti Teknikal Malaysia Melaka Faculty of Electronic and Computer Engineering Universiti Teknikal Malaysia Melaka

Graphene oxide(GO) is a 2D coating material used to improve fiber optics sensors' response to relative humidity. Microbottle resonators(MBRs) have garnered more attention as sensing media structures. An MBR with a 190 μm diameter was coated with GO. Then, tapered fiber light coupling was used to investigate the relative humidity sensing performance in the range of 35—70%RH at 25 °C. The MBR showed a higher Q factor before and after GO coating. The sensitivity of 0.115 d B/%RH was recorded with the 190 μm GO-coated MBR sample compared to a sensitivity of 0.022 d B/%RH for the uncoated MBR sample. These results show that the MBR can be used in fiber optic sensing applications for environmental sensing.

关键词： A