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Biochar-compost-based controlled-release nitrogen fertilizer intended for an active microbial community

Frontiers of Agricultural Science and Engineering 2024年第2期11卷 326-343页

作者： robiul islam RUBEL Lin WEI Salman ALANAZI Abdulkarim ALDEKHAIL Anne CMCIDREIRA Xufei YANG Sanjita WASTI Samarthya BHAGIA Xianhui ZHAO Department of Agricultural and Biosystem Engineering South Dakota State UniversityBrookingsSD 57007USA Tickle College of Engineering University of Tennessee KnoxvilleKnoxvilleTN 37996USA Oak Ridge National Laboratory Oak RidgeTN 37830USA

Nitrogen(N) fertilizers in agriculture suffer losses by volatilization of N to the air, surface runoff and leaching into the soil, resulting in low N use efficiency(NUE)( 50%) and raising severe environmental pollutions. Controlledrelease nitrogen fertilizers(CRNFs) can control the release of N nutrients to NUE in crop production. Different methods were used to develop new ***, different CRNF technologies are still underdeveloped due to inadequate controlling on N releasing time and/or unsustainable diffusion. The study on the influences of CRNF processing parameters on microbial conditions are lacking when the CRNFs composed of various bio-ingredients such as biochar, composts, and biowaste. The complexity of processing methods, material biodegradability, and other physical properties make current CRNFs of questionable value in agricultural production. This research aims to develop a novel biochar-compost-based controlled-release urea fertilizer(BCRUF) to preserve microbial properties carried by the compost. The BCRUF was synthesized by pelletizing the 50:50(dry, wt/wt) mixture of biochar and compost. BCRUF was loaded with urea and then spray-coated with polylactic acid(PLA). The releasing time of two types of BCRUFs, coated and uncoated with PLA, for 80% of N release in water was up to 6 h at three different temperatures(4, 23, and 40 °C), compared to conventional urea fertilizer and commercial environmentally smart N(ESN) fertilizer. The releasing time of coated BCRUF for 80% N release in soil was up to 192 h(8 days). Fourier-transform infrared spectroscopy(FTIR) analysis revealed that no new functional groups were found in the release solution, indicating no new chemical hazards generated. The differential scanning calorimetry(DSC)tests also verified that its thermal stability could be up to 160 °C. The microbe populations in the BCRUF pellets were reduced after the pelleting and drying processes in BCRUF fabrication, but a few bacteria can endure in t

关键词： Soil microbial community biochar compost controlled-release nitrogen fertilizer polylactic acid spray coating

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Designing an Effective Method for Automatic Electric Vehicle Charging Stations in a Static Environment

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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

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Data-driven next-generation smart grid towards sustainable energy evolution: techniques and technology review

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Protection and Control of Modern Power Systems 2023年第3期8卷 97-138页

作者： Faiaz Ahsan Nazia Hasan Dana Subrata K.Sarker Li Li S.M.Muyeen Md.Firoj Ali Zinat Tasneem Md.Mehedi Hasan Sarafat Hussain Abhi Md.robiul islam Md.Hafiz Ahamed Md.Manirul islam Sajal K.Das Md.Faisal R.Badal Prangon Das Department of Mechatronics Engineering Rajshahi University of Engineering and TechnologyRajshahiBangladesh School of Electrical and Data Engineering Faculty of Engineering and ITUniversity of Technology SydneyUltimoAustralia Electrical Engineering Department Qatar UniversityDohaQatar

Meteorological changes urge engineering communities to look for sustainable and clean energy technologies to keep the environment safe by reducing CO_(2) *** structure of these technologies relies on the deep inte-gration of advanced data-driven techniques which can ensure efficient energy generation,transmission,and *** conducting thorough research for more than a decade,the concept of the smart grid(SG)has emerged,and its practice around the world paves the ways for efficient use of reliable energy ***,many developing features evoke keen interest and their improvements can be regarded as the next-generation smart grid(NGSG).Also,to deal with the non-linearity and uncertainty,the emergence of data-driven NGSG technology can become a great initiative to reduce the diverse impact of *** paper exhibits the conceptual framework of NGSG by enabling some intelligent technical features to ensure its reliable operation,including intelligent control,agent-based energy conversion,edge computing for energy management,internet of things(IoT)enabled inverter,agent-oriented demand side management,***,a study on the development of data-driven NGSG is discussed to facilitate the use of emerging data-driven techniques(DDTs)for the sustainable operation of the *** prospects of DDTs in the NGSG and their adaptation challenges in real-time are also explored in this paper from various points of view including engineering,technology,et ***,the trends of DDTs towards securing sustainable and clean energy evolution from the NGSG technology in order to keep the environment safe is also studied,while some major future issues are *** paper can offer extended support for engineers and researchers in the context of data-driven technology and the SG.

关键词： Data-driven technology Smart grid Sustainable energy evolution Next-generation smart grid Intelligent

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Next-generation blockchain enabled smart grid: Conceptual framework, keytechnologies and industry practices review

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能源与人工智能(英文) 2023年第2期12卷 187-205页

作者： Shekh S.Uddin Rahul Joysoyal Subrata K.Sarker S.M.Muyeen Md.Firoj Ali Md.Mehedi Hasan Sarafat Hussain Abhi Md.robiul islam Md.Hafiz Ahamed Md.Manirul islam Sajal K.Das Md.Faisal R.Badal Prangon Das Zinat Tasneem Department of Mechatronics Engineering Rajshahi University of Engineering&TechnologyRajshahi 6204Bangladesh Department of Electrical Engineering Qatar UniversityQatar

Technological advancements in smart grid energy systems (SGESs) are introducing sustainable frameworksto meet the demand for the fourth industrial energy revolution. These frameworks are planned to be usedin the forthcoming future to maintain the energy network operation with optimization, energy trading, gridautomation, and so on. Blockchain (BCn), developing after passing a diverse period of the research journey,comes to the mind of researchers and its integration in SGES paves the way to reach the goal of energydemand. However, still of interest is ongoing in the improvement of BCn features which can be regarded asthe next-generation blockchain framework. This paper exhibits the technical framework of the next-generationBCn framework and explores its benefits and challenges in performing the emerging aspects of SGES. Thisframework enables some advanced features for the sustainable operation of SGES like smart metering, peer-topeer (P2P) energy trading, self-operation, and transparency. The technical explanation of this BCn technologyestablished on essential features and requisites is also presented in this paper from various points of viewwhich include smart mechanism, intelligent storage system, and interoperability. We also highlight the recentprogress and limitations of the current BCn framework in SGES. Finally, some challenges towards integratingthe next-generation BCn technology in SGES are reported. This work can provide extended support for thepractitioner and researcher in the context of BCn technology and SGES.

关键词： Blockchain Smart grid energy system Smart contract

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Towards electric digital twin grid: Technology and framework review

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能源与人工智能(英文) 2023年第1期11卷 179-195页

作者： Md.Mhamud Hussen Sifat Safwat Mukarrama Choudhury Sajal K.Das Md.Hafiz Ahamed S.M.Muyeen Md.Mehedi Hasan Md.Firoj Ali Zinat Tasneem Md.Manirul islam Md.robiul islam Md.Faisal R.Badal Sarafat H.Abhi Subrata K.Sarker Prangon Das Department of Mechatronics Engineering Rajshahi University of Engineering&TechnologyRajshahi6204Bangladesh Department of Electrical Engineering Qatar UniversityDoha2713Qatar

The major hindrances in the energy system are ecological consciousness, lack of clean and sustainableenergy management, insufficient energy distribution–transmission–optimization, expensive power transfercosts, and increased customer knowledge of energy charges. Thus why, universal access to the grid with highcybersecurity, and reliability is needed to solve all these challenges. The digital twin concept turns a newdimension of technology into the world. Electric Digital Twin grid can perform online analysis of the grid inreal-time and integrates all the past and present data and express the current grid status to the producers andconsumers and also predicts the future grid status. Thus, the power grid transmission loss and location of theoverheated line and power connection missing can be detected in addition decision-making and self-healingcan possible. The future prediction saves the power grid from small to long accidents such as power outagesand even blackout problems. The whole consumers and nation feel relief from these types of accidents andsaves from large economic and business loss. The blockchain-enabled digital twin grid provides high securityfor the grid from cyberattacks. The paper conveys the framework of the electric digital twin grid and theconcept of the DT grid processing and the way of serving the producer, prosumers, consumers even the wholenation in infrastructure, education, research, economic, business, and political development.

关键词： Electric digital twin grid Online analysis of grid Cloud platform of grid Real-time grid analysis Self-healing Cybersecurity

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保水剂和负压供水对玉米生理生长及水分利用效率的影响

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农业工程学报 2011年第7期27卷 82-88页

作者：毛思帅 M.robiul islam 薛绪掌曾昭海胡跃高国家农业智能装备技术研究中心北京100097 中国农业大学农学与生物技术学院北京100193 拉吉沙伊大学农学与农业推广系

采用一种负水头供水控水系统,通过调节供水负压值来控制不同的土壤含水率,研究3种供水负压(3、6、9kPa)下,保水剂对玉米生理、生长性状以及节水效果的影响。结果表明:在供水负压为3kPa时,保水剂使玉米株高降低了7.4%,叶面积降低了14.9%... 详细信息

采用一种负水头供水控水系统,通过调节供水负压值来控制不同的土壤含水率,研究3种供水负压(3、6、9kPa)下,保水剂对玉米生理、生长性状以及节水效果的影响。结果表明:在供水负压为3kPa时,保水剂使玉米株高降低了7.4%,叶面积降低了14.9%,地上部干物质量降低了12.4%,地下部干物质量降低了7.3%,水分利用效率降低了12.6%。在供水负压为6kPa和9kPa时,保水剂使玉米株高分别增加了10.0%、37.9%,叶面积分别增加了14.2%、90.8%,地上部干物质量分别显著增加40.4%、104.6%,地下部干物质量分别增加了35.3%、83.8%,水分利用效率分别显著提高了26.9%、65.7%。同时,与无保水剂的相比,玉米叶片水势分别增加7.1%、19.2%,叶片相对含水率、净光合速率、胞间CO2浓度、蒸腾速率也较高。表明在水分受限制条件下,保水剂能够改善植株的生理生长特性,提高水分利用效率。

关键词：生理生长水分水分利用效率供水负压保水剂玉米

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Quality Study of Automated Machine Made Environmentally Friendly Brick (KAB) Sample Using Film Neutron Radiography Technique

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Journal of Building Construction and Planning Research 2013年第4期1卷 141-152页

作者： Khurshed Alam robiul islam Sudipta Saha Nurul islam Syed Azharul islam Department of Physics Jahangirnagar University Savar Bangladesh Institute of Nuclear Science and Technology AERE Savar Bangladesh

Neutron radiography (NR) technique has been adopted to study the internal structure and quality of the KAB bricks made by Hoffman kiln method. Thermal neutron radiography facility installed at the tangential beam port of 3 MW TRIGA Mark-II Research Reactor, AERE, Savar, Dhaka, Bangladesh is used in the present study. Measurements were made to determine the internal structure and quality of the automated machine made environmentally friendly brick sample. In this case, optical density/gray values of the neutron radiographic images of the sample have been measured. From these measurements, the porosity, water penetrating height, water penetrating behavior, initial rapid absorption of water (IRA), elemental distribution/homogeneity and incremental water intrusion area in the sample have been found. From the observation of different properties, it is seen that, homogeneity of the Hoffman kiln brick KAB is not perfectly homogeneous and contains small internal porosity;the incremental water intrusion area is very poor, and the water penetrating height through the two edges is higher than the middle part;the initial rapid absorption (IRA) rate is also very poor and the water penetrating behavior of the samples is different as like as stair, capillary, wave and zigzag shape. From these points of view, it is concluded that the quality of the environmentally friendly brick KAB is better. The results obtained and conclusion made in this study can only be compared to the properties of bricks produced under similar conditions with similar raw materials.

关键词： Neutron Radiography Technique Water Penetrating Height/Behavior IRA

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保水剂和施肥量对沙地燕麦生产的影响

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麦类作物学报 2011年第2期31卷 308-313页

作者：毛思帅 M.robiul islam 贾鹏飞薛绪掌曾昭海胡跃高中国农业大学农学与生物技术学院北京100193 国家农业信息技术研究中心北京100089

为给保水剂在沙地燕麦生产中的应用提供依据,在吉林白城雨养贫瘠沙地条件下,采用完全随机设计,研究了不同施肥水平下保水剂对燕麦秸秆和籽粒产量、品质及土壤养分的影响。结果表明,在4个复合肥(N-P2O5-K2O:15-15-15)施用量(375、300、22... 详细信息

为给保水剂在沙地燕麦生产中的应用提供依据,在吉林白城雨养贫瘠沙地条件下,采用完全随机设计,研究了不同施肥水平下保水剂对燕麦秸秆和籽粒产量、品质及土壤养分的影响。结果表明,在4个复合肥(N-P2O5-K2O:15-15-15)施用量(375、300、225和150kg·hm-2)下,与对照相比,施用保水剂(60kg·hm-2)使燕麦平均秸秆产量、籽粒产量、地上部和地下部生物量分别增加38.58%、22.60%、32.02%和24.59%,差异均显著(P<0.05);叶、茎、籽粒平均粗蛋白含量分别增加0.65、4.09和2.58个百分点,相对饲用价值分别增加13.28、7.6和18.57个百分点;相对增加了耕层土壤养分(全N、速效P、速效K)含量,对0～10cm土层影响显著。肥料施用量显著影响燕麦秸秆产量、籽粒产量、地上和地下部生物量、植株粗蛋白含量和0～30cm土层养分含量。施用保水剂可显著提高籽粒产量平均肥料利用效率29.6%。60kg·hm-2保水剂和375kg·hm-2肥料施用量组合下燕麦产量最高,品质最优。

关键词：燕麦保水剂肥料产量品质

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The Effect of La on the Physical and Magnetic Properties of NiCuZn Ferrites

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材料科学与工程（中英文B版） 2011年第7期1卷 891-894页

作者： Saiduzzaman Md. Abul Hossain A.K.M. Hakim Saroaut Noor robiul islam Md. Al-Mamun Department of Physics Jahangirnagar University Dhaka Bangladesh Materials Science Division Atomic Energy Centre Dhaka Bangladesh Department of Physics KUET Khulna Bangladesh

Lanthanum-substituted NiCuZn ferrites Ni0.26Cu0.16Zn0.58LaxFe2-xO4 were prepared by usual ceramic method. The samples were investigated for their structural properties such as lattice parameter and density as a function of La content. The lattice parameter of the samples increased with the increasing of La which might be attributed to the larger ionic radius of La3+. The density slightly increased with the increasing of La content. The Scanning Electron Microscope (SEM) micrographs of the samples were observed to investigate grain sizes. It was also observed that bulk density was less than X-ray density. The electrical and magnetic properties such as resistivity, initial permeability, Curie temperature as a function of temperature, frequency and La content were also studied. The initial permeability at 100 kilohertz was found to increase at a certain limit and then decrease with the increasing of La content. The magnetic hysteresis loops of the samples were measured at room temperature.

关键词： NiCuZn铁氧体磁学性质扫描电子显微镜物理射线密度镧晶格参数居里温度

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Effect of Sintering Temperature on Structural and Magnetic Properties of Ni0.55Zn0.45Fe2O4Ferrites

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Materials Sciences and Applications 2012年第5期3卷 326-331页

作者： robiul islam Md Obaidur Rahman M. Abdul Hakim Dilip Kumar Saha Saiduzzaman Saiduzzaman Saroaut Noor Md Al-Mamun Department of Physics Khulna University of Engineering & Technology Khulna Bangladesh Materials Science Division Atomic Energy Centre Dhaka Bangladesh The Department of Physics Jahangirnagar University Dhaka Bangladesh

The effect of frequency and sintering temperature on initial permeability of Ni0.55Zn0.45Fe2O4 ferrites have been studied by using an impedance analyzer. The samples were prepared by conventional double sintering ceramic technique using oxide nanoparticles of grain size 30 - 50 nm. Single phase spinal structure has been confirmed for the prepared samples by X-ray diffraction. As the sintering temperatures increase from 1160℃ to 1300℃, the permeability gradually increases. The increase of permeability is ascribed to the increase of density and grain size. Grain size is expected to grow with the increase of sintering temperature. Ferrites with large average grain size posses higher initial permeability. The Curie temperatures determined from temperature dependence of permeability of the samples sintered at different temperatures are found to be Tc = (321 ± 1)℃ and independent of sintering temperature. At Ts = 1300℃, Tc is found to increase substantially which can be explained by the fact that Zn has evaporated from the surface layer.

关键词： Nanoparticle Sintering Temperature Curie Temperature Microstructure Grain Size

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