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  1. Article ; Online: Analysis of epoxy composites reinforced with jute, banana, and coconut fibers and enhanced with Rubik's layer: Tensile, bending, and impact performance evaluation.

    Mahmud, Md Zobair Al / Islam, Md Didarul / Rabbi, S M Fazle

    Journal of the mechanical behavior of biomedical materials

    2023  Volume 147, Page(s) 106151

    Abstract: This research paper presents a comprehensive analysis of epoxy composites fortified with natural fibers such as jute, banana, and coconut, further augmented by the incorporation of Rubik's layer, aimed at evaluating their mechanical performance in terms ... ...

    Abstract This research paper presents a comprehensive analysis of epoxy composites fortified with natural fibers such as jute, banana, and coconut, further augmented by the incorporation of Rubik's layer, aimed at evaluating their mechanical performance in terms of tensile, bending, and impact properties. As sustainable alternatives to traditional reinforcement materials, these natural fibers offer the advantage of low environmental impact, renewability, and biodegradability. The Rubik's layer, known for its three-dimensional interlocking structure, holds promise in enhancing composite properties due to its unique geometry and material characteristics. The study involves the fabrication of composite specimens through a systematic layering process, varying the composition of natural fibers and Rubik's layer. A comprehensive experimental campaign is conducted to assess the tensile strength, bending modulus, and impact resistance of the resultant composites. The results are systematically compared against those of pristine epoxy composites to ascertain the influence of the added reinforcements and enhancement layer. The findings reveal distinctive trends in mechanical behavior based on the type and proportion of natural fibers employed. Notably, the jute-reinforced composites exhibit commendable tensile and bending properties, while banana and coconut reinforcements contribute to improved impact resistance. The introduction of the Rubik's layer further refines these properties, with discernible variations based on its placement within the composite structure. This paper offers valuable insights into the multifaceted impact of natural fiber reinforcements and Rubik's layer incorporation on epoxy composites. The systematic evaluation of mechanical attributes provides a comprehensive understanding of the synergistic effects among these constituents. As the demand for sustainable and high-performance materials escalates, this research contributes to the growing body of knowledge on composite design, catering to diverse engineering applications that prioritize mechanical excellence and ecological responsibility.
    Language English
    Publishing date 2023-09-26
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2378381-3
    ISSN 1878-0180 ; 1751-6161
    ISSN (online) 1878-0180
    ISSN 1751-6161
    DOI 10.1016/j.jmbbm.2023.106151
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Spatio-temporal variation of land use and land cover changes and their impact on land surface temperature: A case of Kutupalong Refugee Camp, Bangladesh.

    Bappa, Syed Alimuzzaman / Malaker, Tanmoy / Mia, Md Rimu / Islam, Md Didarul

    Heliyon

    2022  Volume 8, Issue 9, Page(s) e10449

    Abstract: Environmental degradation can be predicted and managed in a sustainable manner by the perodic analysis of the Land Use/Land Cover (LULC) change pattern, which not only helps to revitalize the environment but also helps to improve future land-use policies. ...

    Abstract Environmental degradation can be predicted and managed in a sustainable manner by the perodic analysis of the Land Use/Land Cover (LULC) change pattern, which not only helps to revitalize the environment but also helps to improve future land-use policies. With the Rohingya influx in 2017, the Kutupalong Mega Camp area in Bangladesh is at a severe risk of environmental degradation as the area is experiencing remarkable LULC change. The aim of this research is to illustrate the LULC change in the Kutupalong Mega Camp before and after the refugee influx, as well as its impact on the surrounding environment because of this change. The spatial and temporal variation of the LULC is analyzed from the classified multi-temporal Landsat images for years-2015, 2018, and 2021. The study reveals gradual decrease in forest cover of the area, which is replaced by the increasing human settlements. The study found an inverse relation between the refugee influx and the vegetation cover, where a positive relation to the bare land and settlement exists. The area experienced about ten times increase in human settlements during 2015-2021, which resulted deforestation of surrounding forest cover. Between 2015 to 2021, 74 % of forest cover of the studied area has been cleaned up for newer settlements, with an increase of wetland to meet the needs of increasing refugee population which has made the scenario worse. We also noticed an increase of Land Surface Temperature (LST) within a short period, where the average temperature increase rate is 0.06% during 2015-2018 and 0.01% during 2018-2021. The ecosystem, wild-habitat, and the thermal environment has been disturbed to a great extent due to this drastic change of forest cover mostly by the increasing anthropogenic activities in this area. The study represents the present scenario in comparison to its natural setting just a few years ago, and may serve as a guidance for the concerned authorities and international humanitarian organizations to develop a sustainable, comprehensive, and environment-friendly land management plan in order to protect the surrounding forest-ecology as well as the humanitarian works.
    Language English
    Publishing date 2022-08-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2022.e10449
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Spatio-temporal variation of land use and land cover changes and their impact on land surface temperature: A case of Kutupalong Refugee Camp, Bangladesh

    Bappa, Syed Alimuzzaman / Malaker, Tanmoy / Mia, Md. Rimu / Islam, Md Didarul

    Heliyon. 2022 Sept., v. 8, no. 9 p.e10449-

    2022  

    Abstract: Environmental degradation can be predicted and managed in a sustainable manner by the perodic analysis of the Land Use/Land Cover (LULC) change pattern, which not only helps to revitalize the environment but also helps to improve future land-use policies. ...

    Abstract Environmental degradation can be predicted and managed in a sustainable manner by the perodic analysis of the Land Use/Land Cover (LULC) change pattern, which not only helps to revitalize the environment but also helps to improve future land-use policies. With the Rohingya influx in 2017, the Kutupalong Mega Camp area in Bangladesh is at a severe risk of environmental degradation as the area is experiencing remarkable LULC change. The aim of this research is to illustrate the LULC change in the Kutupalong Mega Camp before and after the refugee influx, as well as its impact on the surrounding environment because of this change. The spatial and temporal variation of the LULC is analyzed from the classified multi-temporal Landsat images for years-2015, 2018, and 2021. The study reveals gradual decrease in forest cover of the area, which is replaced by the increasing human settlements. The study found an inverse relation between the refugee influx and the vegetation cover, where a positive relation to the bare land and settlement exists. The area experienced about ten times increase in human settlements during 2015-2021, which resulted deforestation of surrounding forest cover. Between 2015 to 2021, 74 % of forest cover of the studied area has been cleaned up for newer settlements, with an increase of wetland to meet the needs of increasing refugee population which has made the scenario worse. We also noticed an increase of Land Surface Temperature (LST) within a short period, where the average temperature increase rate is 0.06% during 2015-2018 and 0.01% during 2018-2021. The ecosystem, wild-habitat, and the thermal environment has been disturbed to a great extent due to this drastic change of forest cover mostly by the increasing anthropogenic activities in this area. The study represents the present scenario in comparison to its natural setting just a few years ago, and may serve as a guidance for the concerned authorities and international humanitarian organizations to develop a sustainable, comprehensive, and environment-friendly land management plan in order to protect the surrounding forest-ecology as well as the humanitarian works.
    Keywords Landsat ; deforestation ; ecosystems ; forest ecology ; forests ; humans ; land cover ; land use ; land use and land cover maps ; refugees ; risk ; surface temperature ; temporal variation ; vegetation cover ; wetlands ; Bangladesh ; LULC ; Rohingya refugee ; Remote sensing ; Geographic information system ; Land surface temperature
    Language English
    Dates of publication 2022-09
    Publishing place Elsevier Ltd
    Document type Article ; Online
    Note Use and reproduction
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2022.e10449
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Ag-IoT for crop and environment monitoring: Past, present, and future

    Chamara, Nipuna / Islam, Md Didarul / Bai, Geng (Frank) / Shi, Yeyin / Ge, Yufeng

    Agricultural systems. 2022 Dec., v. 203

    2022  

    Abstract: Automated monitoring of the soil-plant-atmospheric continuum at a high spatiotemporal resolution is a key to transform the labor-intensive, experience-based decision making to an automatic, data-driven approach in agricultural production. Growers could ... ...

    Abstract Automated monitoring of the soil-plant-atmospheric continuum at a high spatiotemporal resolution is a key to transform the labor-intensive, experience-based decision making to an automatic, data-driven approach in agricultural production. Growers could make better management decisions by leveraging the real-time field data while researchers could utilize these data to answer key scientific questions. Traditionally, data collection in agricultural fields, which largely relies on human labor, can only generate limited numbers of data points with low resolution and accuracy. During the last two decades, crop monitoring has drastically evolved with the advancement of modern sensing technologies. Most importantly, the introduction of IoT (Internet of Things) into crop, soil, and microclimate sensing has transformed crop monitoring into a quantitative and data-driven work from a qualitative and experience-based task. Ag-IoT systems enable a data pipeline for modern agriculture that includes data collection, transmission, storage, visualization, analysis, and decision-making. This review serves as a technical guide for Ag-IoT system design and development for crop, soil, and microclimate monitoring. It highlighted Ag-IoT platforms presented in 115 academic publications between 2011 and 2021 worldwide. These publications were analyzed based on the types of sensors and actuators used, main control boards, types of farming, crops observed, communication technologies and protocols, power supplies, and energy storage used in Ag-IoT platforms. The result showed that 33 variables measured by various sensors were demonstrated in these studies while 10 actuations were successfully integrated with Ag-IoT platforms. Perennial crops, which introduced less disturbance to Ag-IoT platforms than annual crops, were selected by 64% of researchers. Furthermore, studies in Ag-IoT system development were more focused on outdoor than indoor environments. Ag-IoT systems based on Arduino were most common among the studies while commercial platforms were least adopted, likely due to their inflexibility in customized developments. More researchers focused on agricultural applications than the IoT technology itself. Soil water content-based irrigation scheduling and controlled environment monitoring and controlling were the main applications. Other application areas included soil nutrient estimation, crop monitoring based on multiple vegetation indices, pest identification, and chemigation. Several potential future research directions were identified at the end of the review, including integration of satellite-based internet connectivity to improve the IoT networks in non-connected farms, development of mobile IoT platforms (drones and autonomous ground vehicles) with continuous connectivity, and the use of edge-computing and machine-learning/deep-learning to enhance the capability of the Ag-IoT systems.
    Keywords Internet ; automation ; chemigation ; data collection ; decision making ; energy ; humans ; irrigation ; labor ; microclimate ; pest identification ; satellites ; soil nutrients ; soil water ; systems engineering ; vegetation
    Language English
    Dates of publication 2022-12
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 413255-5
    ISSN 0308-521X
    ISSN 0308-521X
    DOI 10.1016/j.agsy.2022.103497
    Database NAL-Catalogue (AGRICOLA)

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  5. Book ; Online: COVID-19 and Bangladesh

    Islam, Md Didarul / Siddika, Ayesha

    A study of the public perception on the measures taken by the government

    2020  

    Abstract: This research attempts to understand the public perception in Bangladesh regarding the measures taken by the government. Corresponding to the fact that this is a war like situation, this study has found that the measures taken by the Bangladesh ... ...

    Abstract This research attempts to understand the public perception in Bangladesh regarding the measures taken by the government. Corresponding to the fact that this is a war like situation, this study has found that the measures taken by the Bangladesh government should have been taken earlier and more robust measures are necessary to stop this pandemic. Different government authorities partially failed to communicate the measures of the government to the wider public audience. Moreover, this research finds that a proper coordination among all the agencies would help to contain the disease with a continuous lockdown and social distancing policy. Hospitals should be well equipped and frontline fighters should be well protected as well.
    Keywords covid19
    Publisher Center for Open Science
    Publishing country us
    Document type Book ; Online
    DOI 10.35542/osf.io/h7sbe
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Effect of Pressure on the Superconducting Transition Temperature and Physical Properties of CaPd

    Islam, Jakiul / Farjana, Nahida / Islam, Md Didarul / Shabnam, Shamaita / Rahman, Md Afjalur

    ACS omega

    2022  Volume 7, Issue 25, Page(s) 21528–21536

    Abstract: ... ...

    Abstract CaPd
    Language English
    Publishing date 2022-06-13
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.2c01088
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Nontoxic Cross-Linked Graphitic Carbon Nitride-Alginate-Based Biodegradable Transparent Films for UV and High-Energy Blue Light Shielding.

    Hasan, M Mehedi / Hossain, Md Sajib / Islam, Md Didarul / Rahman, Md Mahfuzur / Ratna, Aditi Sarker / Mukhopadhyay, Samrat

    ACS applied materials & interfaces

    2023  Volume 15, Issue 26, Page(s) 32011–32023

    Abstract: Flexible, transparent, and biodegradable films that can shield dangerous UV and high-energy blue light (HEBL) are high in demand to satisfy the ever-increasing expectations for environmental sustainability. To achieve this goal, biopolymer alginate is an ...

    Abstract Flexible, transparent, and biodegradable films that can shield dangerous UV and high-energy blue light (HEBL) are high in demand to satisfy the ever-increasing expectations for environmental sustainability. To achieve this goal, biopolymer alginate is an excellent choice that has an outstanding film-forming ability. However, alginate has the limitation of poor UV and HEBL blocking ability. Thus, in this study, UV and HEBL blocker graphitic carbon nitride (g-C
    Language English
    Publishing date 2023-06-22
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c05659
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: A data-driven machine learning-based approach for urban land cover change modeling: A case of Khulna City Corporation area

    Islam, Md Didarul / Islam, Kazi Saiful / Ahasan, Rakibul / Mia, Md Rimu / Haque, Md Emdadul

    Remote sensing applications. 2021 Nov., v. 24

    2021  

    Abstract: Land use and land cover (LULC) changes have significant consequences on habitat and the environment. Past studies developed several LULC change models to identify the factors behind the changes and to simulate future LULC scenarios. However, the accuracy ...

    Abstract Land use and land cover (LULC) changes have significant consequences on habitat and the environment. Past studies developed several LULC change models to identify the factors behind the changes and to simulate future LULC scenarios. However, the accuracy of these models remained contentious and a matter of ongoing debate and research. Most of these studies used a training dataset to train the model and a validation dataset to validate the prediction accuracy, both of which are a part of the original training dataset. However, to evaluate the model's actual predictive capability in terms of spatial data modeling, it is necessary to test the model's performance on the real-world dataset. In this study, we presented an XGBoost model aiming at improving the prediction accuracy while used a separate test dataset to test the model's actual predictive capacity. We applied the method to predict the land cover change of the Khulna City Corporation (KCC) area in Bangladesh. The study reveals that the KCC area experienced rapid urban development during the 2002–2018 period while the agricultural and vacant land declined at a similar rate. The major factors contributing to this substantial change of the city's land covers are-proximity to existing built-up areas and proximity to major roads. Our study indicates that agricultural areas and wetlands closer to the major roads and existing urban areas have a greater probability of converting into built-up areas. Our experiment demonstrates that the XGBoost model can predict the city's land cover change with greater accuracy and outperforms the benchmark models such as the LR-CA and ANN-CA. The finding assures the reliability of the XGBoost model while predicting future land-cover scenarios.
    Keywords data collection ; habitats ; land cover ; land use and land cover maps ; models ; prediction ; probability ; spatial data ; urban development ; Bangladesh
    Language English
    Dates of publication 2021-11
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 2352-9385
    DOI 10.1016/j.rsase.2021.100634
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Evaluation of renovated double J stents using ureter models with and without stenosis.

    Choi, Young-Ho / Kang, Hyo Jeong / Kim, Kyung-Wuk / Jo, Mun Seong / Islam, Md Didarul / Kim, Jeong Sik / Jeon, Sang Jin / Lee, Changje / Lee, Seung Bae / Kim, Min Uk / Kim, Hyoung-Ho

    World journal of urology

    2024  Volume 42, Issue 1, Page(s) 228

    Abstract: Purpose: Commercial double J stents (DJS) have a uniform shape regardless of the specific nature of various ureteral diseases. We tested renovated DJS and compared them with conventional DJS using ureter models.: Methods: One straight ureter model ... ...

    Abstract Purpose: Commercial double J stents (DJS) have a uniform shape regardless of the specific nature of various ureteral diseases. We tested renovated DJS and compared them with conventional DJS using ureter models.
    Methods: One straight ureter model included stenosis at the distal ureter near the ureterovesical junction and the other did not. We used conventional DJS and renovated 5- and 6-Fr soft DJS for ureter stones and 6-, 7-, and 8.5-Fr hard DJS for tumors. The DJS comprised holes in the upper, middle, or lower one-third of the shaft (length, 24 cm; 2-cm-diameter coils at both ends). More holes were created along the shaft based on the ureteral disease location. Conventional DJS had holes spaced 1 cm apart along the shaft. Renovated DJS had holes spaced 1 cm apart along the shaft with 0.5-cm intervals on the upper, middle, or lower one-third of the shaft. Urine flow was evaluated.
    Results: As the DJS diameter increased, the flow rate decreased. The flow rates of DJS with holes in the lower shaft were relatively lower than those of conventional DJS and DJS with holes in the upper and middle shafts. In the ureter model without stenosis, 6-, 7-, and 8.5-Fr renovated stents exhibited significantly higher flow rates than conventional stents. In the ureter model with stenosis, 5-, 6-, 7-, and 8.5-Fr renovated stents did not exhibit significantly higher flow rates than conventional stents.
    Conclusion: Renovated stents and conventional stents did not exhibit significant differences in urine flow with stenosis.
    MeSH term(s) Humans ; Ureter/surgery ; Constriction, Pathologic ; Ureterolithiasis ; Stents
    Language English
    Publishing date 2024-04-10
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 380333-8
    ISSN 1433-8726 ; 0724-4983
    ISSN (online) 1433-8726
    ISSN 0724-4983
    DOI 10.1007/s00345-024-04920-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: DFT Insights into MAX Phase Borides Hf

    Islam, Jakiul / Islam, Md Didarul / Ali, Md Ashraf / Akter, Hasina / Hossain, Aslam / Biswas, Mautushi / Hossain, Md Mukter / Uddin, Md Mohi / Naqib, Saleh Hasan

    ACS omega

    2023  Volume 8, Issue 36, Page(s) 32917–32930

    Abstract: In this work, density functional theory (DFT)-based calculations were performed to compute the physical properties (structural stability, mechanical behavior, and electronic, thermodynamic, and optical properties) of synthesized MAX phases ... ...

    Abstract In this work, density functional theory (DFT)-based calculations were performed to compute the physical properties (structural stability, mechanical behavior, and electronic, thermodynamic, and optical properties) of synthesized MAX phases Hf
    Language English
    Publishing date 2023-08-29
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.3c04283
    Database MEDical Literature Analysis and Retrieval System OnLINE

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