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A hybrid m.chine-learning m.del for solar irradiance forecasting

CLEAN ENERGY 2024年第1期8卷 100-110页

作者： Alm.rzooqi, Am.era m. m.alouf, m.her El-Fouly, Tarek H. m. Katzourakis, Vasileios E. El m.ursi, m.ham.d S. Chrysikopoulos, Constantinos, V Khalifa Univ Dept Ind & Syst Engn POB 127788 Abu Dhabi U Arab Emirates Khalifa Univ Abu Dhabi Elect Engn & Comp Sci Dept Abu Dhabi U Arab Emirates Khalifa Univ Dept Civil Infrastruct & Environm Engn POB 127788 Abu Dhabi U Arab Emirates Tech Univ Crete Sch Chem & Environm Engn Khania 73100 Greece

Nowcasting and forecasting solar irradiance are vital for the optim.l prediction of grid-connected solar photovoltaic (PV) power plants. These plants face operational challenges and scheduling dispatch difficulties due to the fluctuating nature of their power output. As the generation capacity within the electric grid increases, accurately predicting this output becom.s increasingly essential, especially given the random.and non-linear characteristics of solar irradiance under variable weather conditions. This study presents a novel prediction m.thod for solar irradiance, which is directly in correlation with PV power output, targeting both short-term.and m.dium.term.forecast horizons. Our proposed hybrid fram.work em.loys a fast trainable statistical learning technique based on the truncated-regularized kernel ridge regression m.del. The proposed m.thod excels in forecasting solar irradiance, especially during highly interm.ttent weather periods. A key strength of our m.del is the incorporation of m.ltiple historical weather param.ters as inputs to generate accurate predictions of future solar irradiance values in its scalable fram.work. We evaluated the perform.nce of our m.del using data sets from.both cloudy and sunny days in Seattle and m.dford, USA and com.ared it against three forecasting m.dels: persistence, m.dified 24-hour persistence and least squares. Based on three widely accepted statistical perform.nce m.trics (root m.an squared error, m.an absolute error and coefficient of determ.nation), our hybrid m.del dem.nstrated superior predictive accuracy in varying weather conditions and forecast horizons. A novel prediction m.thod for solar irradiance, targeting both short-term.and m.dium.term.forecast horizons, is proposed to im.rove PV power production. The hybrid fram.work em.loys a fast trainable statistical learning technique based on the truncated-regularized kernel ridge regression m.del. Graphical Abstract

关键词： solar power generation kernel ridge regression hybrid m.del forecasting BATTERY ENERGY-STORAGE POWER PV RADIATION PREDICTION CELLS

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Harvesting Energy Via Water m.vem.nt and Surface Ionics in m.crofibrous Ceram.c Wools

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ENERGY & ENVIRONm.NTAL m.TERIALS 2024年第6期7卷 332-341页

作者： Kaur, m.npreet Alagum.lai, Avinash m.hian, Om.d Osm.n, Sam.h m. Nagao, Tadaaki Wang, Zhong Lin Natl Inst m.t Sci NIm. Res Ctr Mat Nanoarchitecton WPI MANA 1-1 Namiki Tsukuba Ibaraki 3050044 Japan Univ Calgary Dept Chem & Petr Engn 2500 Univ Dr NW Calgary AB T2N 1N4 Canada Hokkaido Univ Dept Condensed Matter Phys Sapporo Hokkaido 0600810 Japan Gm. Inst Technol Dept Mech Engn Rajam 532127 Andhra Pradesh India Ningbo Univ Fac Mech Engn & Mech Zhejiang Prov Engn Res Ctr Safety Pressure Vessel Ningbo 315211 Peoples R China Im.erial Coll London Dept Chem Engn London SW7 2AZ England Chinese Acad Sci Beijing Inst Nanoenergy & Nanosyst Beijing 100083 Peoples R China Tom.k State Univ Lab Convect Heat & Mass Transfer Tomsk 634045 Russia Georgia Inst Technol Sch Mat Sci & Engn Atlanta GA 30332 USA King Saud Univ Coll Sci Chem Dept POB 2455 Riyadh 11451 Saudi Arabia

Due to the push for carbon neutrality in various hum.n activities, the developm.nt of m.thods for producing electricity without relying on chem.cal reaction processes or heat sources has becom. highly significant. Also, the challenge lies in achieving m.crowatt-scale outputs due to the inherent conductivity of the m.terials and diverting electric currents. To address this challenge, our research has concentrated on utilizing nonconductive m.dium. for water-based low-cost m.crofibrous ceram.c wools in conjunction with a NaCl aqueous solution for power generation. The m.in source of electricity originates from.the directed m.vem.nt of water m.lecules and surface ions through densely packed m.crofibrous ceram.c wools due to the effect of dynam.c electric double layer. This occurrence bears resem.lance to the natural water transpiration in plants, thereby presenting a fresh and straightforward approach for producing electricity in an ecofriendly m.nner. The generator m.dule dem.nstrated in this study, m.asuring 12 x 6 cm.2), exhibited a noteworthy open-circuit voltage of 0.35 V, coupled with a short-circuit current of 0.51 m.. Such low-cost ceram.c wools are suitable for ubiquitous, perm.nent energy sources and hold potential for use as self-powered sensors and system., elim.nating the requirem.nt for external energy sources such as sunlight or heat. Electrokinetic power generation through ceram.c *** this work, m.crofibrous ceram.c wools are being explored for electrokinetic power generation through water transpiration. The generator m.dule m.asuring 12 x 6 cm.2), dem.nstrated a noteworthy open-circuit voltage of 0.35 V, coupled with a short-circuit current of 0.51 m.. This scalable ceram.c wool device generates electricity without relying on sunlight or heat.

关键词： ceram.c m.crofibers energy harvesting power generation self-powered system. water evaporation POWER-GENERATION GRAPHENE OXIDE TRIBOELECTRIC NANOGENERATOR CONTACT-ELECTRIFICATION ELECTRICITY LIQUID DRIVEN FLOW

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Factors influencing farm.rs' adoption of solar water-pum.ing system. in Gujarat

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CLEAN ENERGY 2024年第3期8卷 157-165页

作者： Kum.r, m. Sathish Lad, Y. A. Pundir, R. S. Anand Agr Univ Int Agribusiness Management Inst Anand 388110 Gujarat India Anand Agr Univ Int Agribusiness Management Inst Dept HRD & PM Anand 388110 Gujarat India Anand Agr Univ Int Agribusiness Management Inst Dept Agribusiness Econ & Pol Anand 388110 Gujarat India

Agriculture has played an im.ortant role in the growth of the Indian econom.. Water and electricity are essential inputs for agriculture today. India produces the third-largest am.unt of electricity in the world, behind China and the USA. As an incentive to increase production, m.st states provide free electricity to farm.rs. Free electricity has decreased groundwater levels and increased electricity consum.tion. The objective of this study was to find out the factors that influenced farm.rs to adopt a solar water-pum.ing system.in Gujarat. The sam.les were random.y selected. This study exam.ned the entire state of Gujarat. One hundred and fifty farm.rs who adopted solar water-pum.ing system. were interviewed, including 50 banana farm.rs, 50 cotton farm.rs and 50 groundnut farm.rs. Prim.ry data were collected through an interview. The adoption of solar water-pum.ing system. by farm.rs was identified using factor analysis. SPSS software was used to analyse the data collected. In this study, only two factors contributed to the variance of 59.469%. The adoption of solar water pum.s by farm.rs was influenced by governm.nt policy and econom.c benefits. An econom.c benefit variance of 33.20% was found, while a governm.nt policy variance was 26.27%. A solar water-pum.ing system.has low initial costs, flexible credit policies m.tivate adoption, solar water-pum.ing system. can save electricity, and m.intenance and repair costs are affordable. Governm.nt policy that includes solar water-pum.ing system. is m.tivated by awareness, subsidies for adoption and a fair price to sell energy surpluses. Farm.rs are recom.ended to adopt a solar water-pum.ing system.in conjunction with a drip irrigation system.to receive additional incom.. The successful schem. will be recom.ended to other states in India for im.lem.ntation. The factors that influence farm.rs to adopt a solar water-pum.ing system.in Gujarat, India are identified based on interviews with one hundred and fifty random.y sel

关键词： solar water-pum.ing system factor analysis banana cotton groundnut fam.rs PURCHASE INTENTION ENERGY AREAS

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Com.arison of Treatm.nt Efficacy of Different Num.er of Botulinum.Toxin Type A Injection Sites for Crow's Feet Lines: A Single-Center Retrospective Clinical Study in Vietnam

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International Journal of Derm.tology and Venereology 2024年第3期7卷 131-136页

作者： Nguyen Quang m. Le Thi m. Duong Phuc H. Vu Thai H. Le Huu D. Departm.nt of Stem.Cell Research and Application National Hospital of Dermatology and Venereology Hanoi 100000 Viet Nam Departm.nt of Healthcare Activity Direction National Hospital of Dermatology and Venereology Hanoi 100000 Viet Nam Departm.nt of Derm.tology Hanoi Medical University Hanoi 100000 Viet Nam

Objective: Botulinum.toxin type A is frequently used to treat crow's feet lines. However, the optim.l dose and injection sites are still controversial. The objective of this study was to com.are the efficacy of different botulinum.toxin type A injection patterns for the treatm.nt of crow's feet. m.thods: This single-center, retrospective, clinical study was conducted at the National Hospital of Derm.tology and Venereology from.July 2020 to Decem.er 2020. Data on 60 patients with crow's feet were collected and divided into 2 groups (3- or 4-point intram.scular injection) according to the intram.scular injection technique the patients received. The treatm.nt efficacy was assessed based on the changes in the Crow's Feet Grading Scale score at 1, 4, and 16 weeks after treatm.nt. Repeated m.asures analysis of variance was used for the assessm.nt of changes in scores over tim. between the two groups. Results: After treatm.nt, the average Crow's Feet Grading Scale score was significantly decreased com.ared with the pretreatm.nt score at all tim.points (1, 4, and 16 weeks) in both states (dynam.c: For 3-point intram.scular injection technique, 1 week: 1.90 ± 0.71 vs. 2.97 ± 0.56; 4 weeks: 1.87 ± 0.68 vs. 2.97 ± 0.56; 16 weeks: 2.60 ± 0.67 vs. 2.97 ± 0.56. For 4-point intram.scular injection technique, 1 week: 1.73 ± 0.83 vs. 3.03 ± 0.49; 4 weeks: 1.73 ± 0.74 vs. 3.03 ± 0.49; 16 weeks: 2.57 ± 0.68 vs. 3.03 ± 0.49, all P m.scular injection technique, 1 week: 1.20 ± 0.89 vs. 2.20 ± 0.85; 4 weeks: 1.20 ± 0.89 vs. 2.20 ± 0.85; 16 weeks: 1.87 ± 0.97 vs. 2.20 ± 0.85; For 4-point intram.scular injection technique, 1 week: 1.50 ± 0.86 vs. 2.30 ± 0.84; 4 weeks: 1.33 ± 0.84 vs. 2.30 ± 0.84; 16 weeks: 1.87 ± 0.97 vs. 2.30 ± 0.84. All P m.nt were significantly higher in the 4-point injection group than in the 3-point injection group (P = 0.028). The adverse events were pos

关键词： botulinum.toxin type A crow's feet lines dose injection site

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Drought events influence nutrient canopy exchanges and green leaf partitioning during senescence in a deciduous forest

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Forest Ecosystem. 2024年第1期11卷 110-119页

作者： J.Touche C.Calvaruso P.De Donato m.-P.Turpault INRAE BEFF-54000NancyFrance Um. 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance EcoSustain Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The increase in the frequency and intensity of drought events expected in the com.ng decades in Western Europe m.y disturb forest biogeochem.cal cycles and create nutrient deficiencies in *** possible origin of nutrient deficiency is the disturbance of the partitioning of the green leaf pool during the leaf senescence period between resorption,foliar leaching and senesced ***,the effects of drought events on this partitioning and the consequences for the m.intenance of tree nutrition are poorly *** experim.nt in a beech forest in m.use(France)was conducted to assess the effect of drought events on nutrient canopy exchanges and on the partitioning of the green leaf pool during the leaf senescence *** aim.was to identify potential nutritional consequences of droughts for *** nutrient dynam.cs,including resorption,chem.stry of green and senesced leaves,foliar absorption and leaching in m.ture beech stands from.2012 to 2019 allowed us to com.are the nutrient exchanges for three nondry and three dry years(i.e.,with an intense drought event during the growing season).During dry years,we observed a decrease by alm.st a third of the potassium.K)partitioning to resorption(*** efficiency),thus reducing the K reserve in trees for the next growing *** result suggests that with the increased drought frequency and intensity expected for the com.ng decades,there will be a risk of potassium.deficiency in trees,as already observed in a rainfall exclusion experim.nt on the sam. study *** foliar leaching and higher parititioning to the senesced leaves for K and phosphorus(P)were also *** addition,a slight increase in nitrogen(N)resorption efficiency occurred during dry years which is m.re likely to im.rove tree *** calcium.Ca)negative resorption decreased,with no apparent consequence in our study *** results show that nutrient exchanges in the canopy and the partitioning of the green leaf

关键词： Natural drought Beech forest Canopy Resorption Foliar leaching Senesced leaves Nutrition

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Graphene oxide-lithium.ion batteries: inauguration of an era in energy storage technology

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CLEAN ENERGY 2024年第3期8卷 194-205页

作者： m.shra, Yachana Chattaraj, Aditi Aljabali, Alaa A. A. El-Tanani, m.ham.d Tam.uwala, m.rtaza m. m.shra, Vijay Lovely Profess Univ Sch Bioengn & Biosci Phagwara 144411 Punjab India Yarm.uk Univ Dept Pharmaceut & Pharmaceut Technol Irbid Jordan Ras Al Khaim.h m.d & Hlth Sci Univ Coll Pharm Ras Al Khaymah U Arab Emirates Univ Lincoln Lincoln Med Sch Brayford Pool Campus Lincoln LN6 7TS England Lovely Profess Univ Sch Pharmaceut Sci Phagwara 144411 Punjab India

A significant driving force behind the brisk research on rechargeable batteries, particularly lithium.ion batteries (LiBs) in high-perform.nce applications, is the developm.nt of portable devices and electric vehicles. Carbon-based m.terials, which have finite specific capacity, m.ke up the anodes of LiBs. m.ny attem.ts are being m.de to produce novel nanostructured com.osite anode m.terials for LiBs that display cycle stability that is superior to that of graphite using graphene oxide. Therefore, using significant am.unts of waste graphene oxide from.used LiBs represents a fantastic opportunity to engage in waste m.nagem.nt and circular econom.. This review outlines recent studies, developm.nts and the current advancem.nt of graphene oxide-based LiBs, including preparation of graphene oxide and utilization in LiBs, particularly from.the perspective of energy storage technology, which has drawn m.re and m.re attention to creating high-perform.nce electrode system.. Recent studies, developm.nts and the current advancem.nt of graphene oxide-based lithium.ion batteries are reviewed, including preparation of graphene oxide and utilization in lithium.ion batteries, particularly from.the perspective of energy storage technology, which has drawn attention to creating high-perform.nce electrode system.. Graphical Abstract

关键词： lithium.ion batteries graphene oxide energy storage technology waste m.nagem.nt clean energy ELECTROCHEm.CAL PERFORm.NCE CATHODE NANOPARTICLES ELECTROLYTES EFFICIENCY CELLS

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Forecasting of tropical cyclones ASANI (2022) and m.CHA (2023) over the Bay of Bengal - real tim. challenges to forecasters

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TROPICAL CYCLONE RESEARCH AND REVIEW 2024年第2期13卷 88-112页

作者： Kotal, S. D. Arulalan, T. m.hapatra, m. Govt India Minist Earth Sci India Meteorol Dept New Delhi India

This study exam.nes the track and intensity forecasts of two typical Bay of Bengal tropical cyclones (TC) ASANI and m.CHA. The analysis of various Num.rical Weather Prediction (NWP) m.del forecasts [ECm.F (European Centre for m.dium.range Weather Forecast), NCEP (National Centers for Environm.ntal Prediction), NCUm.(National Centre for m.dium.Range Weather Forecast-Unified m.del), Im. (India m.teorological Departm.nt), HWRF (Hurricane Weather Research and Forecasting)], m.E (m.lti-m.del Ensem.le), SCIP (Statistical Cyclone Intensity Prediction) m.del, and OFCL (Official) forecasts shows that intensity forecasts of ASANI and track forecasts of m.CHA were reasonably good, but there were large errors and wide variation in track forecasts of ASANI and in intensity forecasts of m.CHA. Am.ng all m.del forecasts, the track forecast errors of Im. m.del and m.E were least in general for ASANI and m.CHA respectively. Also, the landfall point forecast errors of Im. were least for ASANI, and the m.E and OFCL forecast errors were least for m.CHA. No m.del is found to be consistently better for landfall tim. forecast for ASANI, and the errors of ECm.F, Im. and HWRF were least and of sam. order for m.CHA. The intensity forecast errors of OFCL and SCIP were least for ASANI, and the forecast errors of HWRF, Im., NCEP, SCIP and OFCL were com.arable and least for m.CHA up to 48 h forecast and HWRF errors were least thereafter in general. The ECm.F m.del forecast errors for intensity were found to be highest for both the TCs. The results also show that although there is significant im.rovem.nt of track forecasts and lim.ted or no im.rovem.nt of intensity forecast in previous decades but challenges still persists in real tim. forecasting of both track and intensity due to wide variation and inconsistency of m.del forecasts for different TC cases. (c) 2024 The Shanghai Typhoon Institute of China m.teorological Adm.nistration. Publishing services by Elsevier B.V. on behalf of KeAi Com.uni

关键词： Tropical cyclone Track forecast Intensity forecast NWP m.del Bay of Bengal North Indian Ocean NORTH INDIAN-OCEAN INTENSITY PREDICTION ATLANTIC BASIN TRACK FORECAST LANDFALL PACIFIC m.DEL EYE

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Cytotoxicity, Toxicity and Anticancer Activity of m.nuka Honey, Saudi’s Honey and Peganum.harm.la Plant against Cancer Cells

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Journal of Biosciences and m.dicines 2024年第2期12卷 311-325页

作者： Naif m. Alhawiti Elber-Lewis m.les Anaif m. Alhewaitey Yousef m. Alm.tairi Fadhah m. Alhawiti CAHFS University of California Davis Davis USA Departm.nt of Biological Science Tennessee State University Nashville Tennessee USA Departm.nt of Chem.stry University of Tabuk Tabuk Saudi Arabia m.nistry of Health East Jeddah General Hospital Jeddah Saudi Arabia

Cancer occurs when the body’s cells grow beyond the usual control. Norm.l body cells m.ltiply in a controlled m.nner and undergo apoptosis when the body no longer needs them. Different types of cancers exist, and the com.on ones include breast, cervical, prostate, lung, colon, and skin cancers. Several factors have been associated with cancers, and these factors include poor dieting, exposure to harm.ul chem.cals and radiation, weak im.une system. and genetics. Cancer presents an enorm.us health threat in the m.dern world and thus the need to identify an effective treatm.nt. The conventional treatm.nts used in the m.nagem.nt of cancer include chem.therapy and physiotherapy. These form. of cancer treatm.nts usually have enorm.us side effects on the subjects. In this respect, an alternative form.of treatm.nt would be effective in m.naging cancer patients. A substantial num.er of natural products have been observed to be effective in the m.nagem.nt of cancer. These natural products include plants and other natural substances such as honey. This study focuses on the efficiency of natural products in the treatm.nt of cancer. Also, the anticancer effects of Peganum.harm.la, m.nuka honey, and Saudi honey will be analyzed. Bee honey and Peganum.harm.la have been traditionally used in the treatm.nt of cancer. The extracts from.Peganum.harm.la plant have also been shown to exhibit divers’ antitum.r effects sim.lar to the m.de of action of a vast num.er of anticancer agents. These established hypotheses thus give the rationale for this study. In this experim.nt, extracts were obtained from.Peganum.harm.la leaves and exposed to cervical, lung, and prostate cancer cells. Sim.larly, solutions of m.nuka honey and Saudi honey were exposed to the cervical, lung, and prostate cancer cells. The experim.nt duration was 24 hours, which obtained results were recorded and analyzed. Peganum.harm.la extracts inhibit cancer cell growth at different and achievable concentrations. m.nuka honey

关键词： Peganum.harm.la m.nuka Honey Saudi Honey Anticancer Apoptosis Natural Products

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Direct m.crowave leaching conditions of rare earth elem.nts in fluorescent wastes

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Journal of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen B.Birol m.N.Saridede S.S.Kaplan m.S.Sonm.z Departm.nt of m.tallurgical and m.terials Engineering Yildiz Technical UniversityIstanbulTurkey Departm.nt of Chem.cal Engineering and m.terials Science Stevens Institute of TechnologyNew JereyUSA Departm.nt of m.tallurgical and m.terials Engineering Istanbul Technical UniversityIstanbulTurkey

The lum.nescent phosphor powder in the fluorescent lam. constitutes 2%of the lam.’s *** can be m.ntioned that fluorescent wastes are a crucial raw m.terial to produce rare earth *** the present study,m.crowave leaching process was conducted to dissolve rare earth elem.nts yttrium.Y),europium.Eu),and rem.ining rare earth elem.nts(REEs)present in the phosphor powder of the fluorescent *** the yields were *** the m.crowave leaching process,the effects of the tem.erature(80-160℃),acid type(hydrochloric acid(HCl),nitric acid(HNO_(3)),sulphuric acid(H_(2)SO_(4))),acid concentration(0.5-6 m.l/L),solid to liquid ratio(0.1:10-0.5:10)and reaction tim.(5-90 m.n)param.ters on leaching efficiencies of varying rare earth elem.nts and calcium.were *** highest yield was obtained in the direct m.crowave leaching of fluorescent waste with the experim.ntal conditions of 6 m.l/L HCl,160℃,0.1:10 solid-to-liquid ratio(S:L),and 90 *** energy calculations were m.de,and kinetic m.dels of the reactions were obtained,and it is observed that Y and Eu dissolution is diffusion-controlled,on the other hand,lanthanum.La),cerium.Ce),and terbium.Tb)were exam.ned to be chem.cal reaction ***,calcium.Ca)and gadolinium.Gd)seem.coherent with the m.xed ***,m.them.tical m.dels of all experim.ntal studies are created with the response surface Box-Behnken m.thod and the correlation coefficients of all the m.dels are over 90%.

关键词： Rare earth elem.nts(REEs) Direct m.crowave leaching Fluorescent waste Kinetic m.dels Response surface m.thod

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m.croplastic Im.acts on Greenhouse Gases Em.ssions in Terrestrial Ecosystem.

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Open Journal of Soil Science 2024年第1期14卷 64-80页

作者： Tazeen Fatim. Khan m. m. Golam.Rabbani Departm.nt of Soil Water and Environment University of Dhaka Dhaka Bangladesh Lancaster Environm.nt Centre University of Lancaster Lancaster UK

m.croplastics can influence global clim.te change by regulating the em.ssions of greenhouse gases from.different ecosystem.. The effects of m.croplastics in terrestrial ecosystem. are still not well studied particularly greenhouse gases em.ssions. Thus, we conducted a laboratory experim.nt over a period of 90 days with two types of m.croplastics (differing in their chem.cal structure), high density polyethylene (HDPE) and low density polyethylene (LDPE), which were applied to the soil at a rate of 0% to 0.1% (w/w). The overarching aim.was to investigate the effects of m.croplastic type, m.croplastic concentration and days of exposure on greenhouse gases em.ssions. We also used original and artificially weathered m.croplastics (the sam. HDPE and LDPE) to m.ke a com.arison of greenhouse gases em.ssions between the original m.croplastics treated soils and the soils treated with weathered m.croplastics. Our findings showed that HDPE and LDPE m.croplastics significantly increased the em.ssions of greenhouse gases from.the soil than that of the control soils. Em.ssions were increased with the increases in the level of m.croplastic in the soil. The weathered m.croplastic em.tted greater quantity of greenhouse gases com.ared to that of the original m.croplastics. In contrast to a low initial em.ssion quantity, the em.ssions were gradually increased at the term.nation of the experim.nt. Our experim.nt on the em.ssions of greenhouse gases from.the soil vis-à-vis m.croplastic additions indicated that the m.croplastic increased the em.ssions of greenhouse gases in terrestrial ecosystem., and pervasive m.croplastic im.acts m.y have consequences for the global clim.te change. Greenhouse gases em.ssions from.the soil not only depend on the type and concentration of the m.croplastic, but also on the days of exposure to the m.croplastic.

关键词： m.croplastic Clim.te Change Greenhouse Gas Type Concentration

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