The role of microservice approach in edge computing: Opportunities, challenges, and research directions

Hossain Md. Delowar,Sultana Tangina,Akhter Sharmen,Hossain Md Imtiaz,Thu Ngo Thien,Huynh Luan N.T.,Lee Ga-Won,허의남 한국통신학회 2023 ICT Express Vol.9 No.6

Edge computing has emerged as a promising computing paradigm that enables real-time data processing and analysis closer to the data source and boosts decision-making applications in a safe manner. On the other hand, the microservice is a new type of architecture that can be dynamically deployed, migrating across edge clouds on demand. Therefore, the combination of these two technologies can provide numerous benefits, including improved performance, reduced latency, and better resource utilization. In this paper, we present a thorough analysis of state-of-the-art research on the use of microservices in edge computing environments. We take into consideration several distinct microservice research directions, including coordination, orchestration, repositories, scheduling, autoscaling, deployment, resource management, and different security issues. Furthermore, we explore the potential applications of microservices in edge computing across various domains. Finally, the unsolved research issues and future directions of emerging trends in this area are also discussed.

Diversity and Composition of Tree Species in Madhupur National Park, Tangail, Bangladesh

Md. Rayhanur Rahman,Mohammed Kamal Hossain,Md. Akhter Hossain 강원대학교 산림과학연구소 2019 Journal of Forest Science Vol.35 No.3

Madhupur National Park (MNP) is one of the last remaining patches of old-growth natural Sal forest left in Bangladesh where the forest is tropical moist deciduous type. A study was revealed to assess the tree species diversity and composition in this area. For determining tree species the study was conducted through extensive random quadrat survey methods with 20 m×20 m sized plots. Results of the study indicated that there were 139 tree species belonging to 100 genera and 40 families. The quadrat survey assessed the basal area, stem density, diversity indices and importance value index of the tree species having ≥5 cm D.B.H (Diameter at Brest Height). The basal area and stem density of the tree species were 20.689±1.08 m2/ha and 1412.93±64.27 stem ha-1 while, diversity indices, i.e. Shannon-Wiener’s diversity, Simpson’s evenness, Margalef’s species richness and Pielou’s dominance indices indicated poor diversity in comparison to that of other PAs (Protected Areas) in South-Eastern region of Bangladesh. The structural composition based on height and D.B.H through reverse- J shaped curve indicated higher regeneration and recruitment but removal of trees of large growth classes. Sal (Shorea robusta) was the most dominant tree species that accounts 75% of the total tree individuals in the natural forest patches. However, some associates of Sal, i.e. Bhutum (Hymenodictyon orixensis), Gadila (Careya arborea), and Kusum (Schleichera oleosa) etc. were seemed to be rare in MNP.

From Complexity to Clarity: Failure Prediction in Cloud with Hyperparameter-Tuned XGBoost and Explainable AI

Md Nosin Ibna Mahbub,Md Delowar Hossain,Sharmen Akhter,Md Imtiaz Hossain,Junyoung Park(박준영),Eui-Nam Huh(허의남) 한국통신학회 2023 한국통신학회 인공지능 학술대회 논문집 Vol.2023 No.9

Prevalence of multidrug-resistant (MDR) Escherichia coli in untreated effluents from a wastewater treatment plant (WWTP) in Dhaka, Bangladesh

Md Naeem Hossain,Asim kumar Roy,Humayra Habib,Zenat Zebin Hossain,Humaira Akhter,Anowara Begum 한국미생물학회 2022 미생물학회지 Vol.58 No.3

The widespread use of antibiotics in human and animal husbandry results in the potential release of antibiotics into surrounding environments and leads to the emergence of antibiotic-resistant bacteria and antibiotic resistance genes. With this concern, we aimed to study the molecular mechanisms associated with multidrug resistance (MDR) and biofilm formation capacity in Escherichia coli isolates from Dhaka City’s wastewater treatment plant. A total of 37 antimicrobialresistant E. coli isolates were analyzed for the presence of genes associated with antibiotic resistance and biofilm formation using several phenotypic and polymerase chain reaction (PCR) assays and curing plasmids through the SDS method. Among the 37 isolates, most prevalent gene detected was qnrS (32.43%), followed by blaTEM (29.73%), blaCTX-M-15 (24.32%), dfrA17 (21.62%), sul2 (8.1%), qnrB (5.41%), sul1 (5.41%), and dfrA1 (2.70%). Twelve E. coli isolates (32.43%) possessed only class 1 integrons. A comparison of results prior to and after plasmid curing revealed most E. coli had plasmid-mediated antibiotic resistance. Among the 37 isolates, nine strains showed weak biofilm production and one showed strong biofilm production. All of the isolates were curli producers; fimH and csgA genes were present in 72.9% and 64.9% of the isolates, respectively. The dynamic antibiotic resistance diversity revealed in this study may pose concern regarding the potential development of drug-resistant bacteria and their dissemination into the surrounding environment via WWTPs.

Diversity and Composition of Tree Species in Madhupur National Park, Tangail, Bangladesh

Rahman, Md. Rayhanur,Hossain, Mohammed Kamal,Hossain, Md. Akhter Institute of Forest Science 2019 Journal of Forest Science Vol.35 No.3

Madhupur National Park (MNP) is one of the last remaining patches of old-growth natural Sal forest left in Bangladesh where the forest is tropical moist deciduous type. A study was revealed to assess the tree species diversity and composition in this area. For determining tree species the study was conducted through extensive random quadrat survey methods with $20m{\times}20m$ sized plots. Results of the study indicated that there were 139 tree species belonging to 100 genera and 40 families. The quadrat survey assessed the basal area, stem density, diversity indices and importance value index of the tree species having ${\geq}5cm$ D.B.H (Diameter at Brest Height). The basal area and stem density of the tree species were $20.689{\pm}1.08m^2/ha$ and $1412.93{\pm}64.27stem\;ha^{-1}$ while, diversity indices, i.e. Shannon-Wiener's diversity, Simpson's evenness, Margalef's species richness and Pielou's dominance indices indicated poor diversity in comparison to that of other PAs (Protected Areas) in South-Eastern region of Bangladesh. The structural composition based on height and D.B.H through reverse-J shaped curve indicated higher regeneration and recruitment but removal of trees of large growth classes. Sal (Shorea robusta) was the most dominant tree species that accounts 75% of the total tree individuals in the natural forest patches. However, some associates of Sal, i.e. Bhutum (Hymenodictyon orixensis), Gadila (Careya arborea), and Kusum (Schleichera oleosa) etc. were seemed to be rare in MNP.

CloudGuard: When Transformer Meets Service Failure Prediction in Cloud Computing

Sharmen Akhter,Md Imtiaz Hossain,Md Nosin Ibna Mahabub,Md Delowar Hossain,A-Young Son(손아영),Eui-Nam Huh(허의남) 한국통신학회 2023 한국통신학회 인공지능 학술대회 논문집 Vol.2023 No.9

Current Status and Potentiality of Forest Resources in a Proposed Biodiversity Conservation Area of Bangladesh

Md. Parvez Rana,Mohammed Salim Uddin,Mohammad Shaheed Hossain Chowdhury,Md. Shawkat Islam Sohel,Sayma Akhter,Masao Koike 강원대학교 산림과학연구소 2009 Journal of Forest Science Vol.25 No.3

An exploratory study was conducted in Juri Forest Range-2, a proposed biodiversity conservation area of Bangladeshto explore the present growing stock of tree, regeneration condition and status of non-timber forest products (NTFPs). Thisconservation area contains both natural and artificial plantation was selected by using multistage random sampling method. Fordetermination of plot size and sampling methods, the quadrate size (10 m×10 m) for tree stock measurement, (2 m×2 m) forregeneration survey, (20 m×20 m) for NTFPs survey was determined. Regarding tree stock survey, 14 species under eight familieswere found where Tectona grandis shows average number of stem/ha was 624 and basal area/ha was (10.36 m2/ha) followed byAcacia auriculiformis (0.2 m2/ha and 637 stem/ha), Gmelina arborea (0.2 m2/ha and 600 stem/ha). In regeneration survey, 14species were found belonging to 9 families where Alstonia scholaris shows highest (3,750) seedling per hectare. Regarding NTFPs,bamboo and cane are the most common resources. In last ten years, the total timber output was 1,28,596.14 cubic feet and totalamount of revenue was 4,64,434 US$. The vacant area is 1,335.5 acre which contains 14% of total area. If this vacant area isplanted with suitable species and take proper steps for appropriate management of this species it will be a good biologicallydiversified area.

Influential Factors of Social Entrepreneurial Intention in Bangladesh

AKHTER, Ayeasha,HOSSAIN, Md. Uzzal,ASHEQ, Ahmed Al Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.8

The concept of social entrepreneurship (SE) is gaining attention in developing economies for the purpose of greater societal welfare maximization. Still, findings in the field of SE studies have been riddled with conflicting results and counterstatement. Also, the determinants of developing SE are not robustly investigated in developing economies like Bangladesh. This context has mobilized the authors of this current study to focus on determining student's intention to pursue SE as their career choice. Hence, the study aims to examine the predictive determinants of social entrepreneurial intentions (SEI) among Bangladeshi students. The study has investigated the influence of entrepreneurial self-efficacy, social support, prior experience, and educational support on SEI. The survey was conducted from a public university of Bangladesh, and 231 students participated in the study. Questionnaire items under each construct variable have been adopted from pre-tested research studies. Five-point Likert scale questionnaire was applied to measure the variables. SPSS version 23.0 has been used for statistical analysis through which correlation and multiple regression analysis were conducted to measure the impact of the independent variables on SEI. Results exhibited that self-efficacy, social support, and educational support positively and significantly predicted SEI, while prior experience does not influence SEI.

Current Status and Potentiality of Forest Resources in a Proposed Biodiversity Conservation Area of Bangladesh

Rana, Md. Parvez,Uddin, Mohammed Salim,Chowdhury, Mohammad Shaheed Hossain,Sohel, Md. Shawkat Lsiam,Akhter, Sayma,Kolke, Masao Institute of Forest Science 2009 Journal of Forest Science Vol.25 No.3

An exploratory study was conducted in Juri Forest Range-2, a proposed biodiversity conservation area of Bangladesh to explore the present growing stock of tree, regeneration condition and status of non-timber forest products (NTFPs). This conservation area contains both natural and artificial plantation was selected by using multistage random sampling method. For determination of plot size and sampling methods, the quadrate size ($10m{\times}10m$) for tree stock measurement, ($2m{\times}2m$) for regeneration survey, ($20m{\times}20m$) for NTFPs survey was determined. Regarding tree stock survey, 14 species under eight families were found where Tectona grandis shows average number of stem/ha was 624 and basal area/ha was (10.36 $m^2/ha$) followed by Acacia auriculiformis (0.2 $m^2/ha$ and 637 stem/ha), Gmelina arborea (0.2 $m^2/ha$ and 600 stem/ha). In regeneration survey, 14 species were found belonging to 9 families where Alstonia scholaris shows highest (3,750) seedling per hectare. Regarding NTFPs, bamboo and cane are the most common resources. In last ten years, the total timber output was 1,28,596.14 cubic feet and total amount of revenue was 4,64,434 US$. The vacant area is 1,335.5 acre which contains 14% of total area. If this vacant area is planted with suitable species and take proper steps for appropriate management of this species it will be a good biologically diversified area.

Effect of Pre-sowing Treatments on Seed Germination and Seedling Growth of Canarium resiniferum, A Rare Native Tree of Bangladesh

Hasnat, G.N. Tanjina,Hossain, Mohammed Kamal,Alam, Mohammed Shafiul,Hossain, Md. Akhter Institute of Forest Science 2017 Journal of Forest Science Vol.33 No.3

Dhup (Canarium resiniferum) is an economically and aesthetically important rare native tree species of Bangladesh. In natural condition 78.5-98.7% seeds do not germinate due to inhibition by hard seed coat, seed predation and unfavorable environmental conditions. A study was conducted in the Seed Research Laboratory and nursery of Institute of Forestry and Environmental Sciences, Chittagong University, Bangladesh in 2013 to find out appropriate pre-sowing treatments for maximizing germination and initial seedling growth. Eleven pre-sowing treatments were provided in both the seeds sown in polybags and seeds sown in propagator house. Results revealed that, germination started at first (after 20 days of seed sown) in seeds immersed in water at room temperature for 24 hours and germination completed within 38 days. Significantly higher (p<0.05) germination percentage (33%), germination energy (16.7%), plant percent (33%) and germination value (0.4) was found with seeds immersed in water at room temperature for 24 hours. Seedling height measured at three, four and five months after the seed germination in case of seeds treated by immersion in water for 24 hours was also greater than others. Therefore, pre-sowing treatment by immersion in water at room temperature for 24 hours was more effective in germination and production of quality vigor seedlings of Dhup.