|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The temporal and spatial patterns and potential evaluation of China's energy resources development显示文摘The issue of China's energy supply security is not only the key problem which affects China's rapid and sustainable development in the 21st century,but also the one which international attention focuses on.Based on the notable characteristic of spatial imbalance between energy production and consumption in China,this paper takes the evolution of China's primary energy resources development(excluding hydropower) from 1949 to 2007 as the study object,with the aim to sum up the evolutive characteristics and laws of China's energy resources development in the past nearly 60 years.Then,based on comprehensive considerations of coal's,oil's and natural gas's basic reserves,qualities,geological conditions,production status,and ecological service function of every province,this paper adopts development potential index(DP)to evaluate the development potential of every province's energy resources,and divide them into different ranks.Conclusions are drawn as follows:(1) Generally speaking,China's gross energy production was increasing in waves from 1949 to 2007.From the viewpoint of spatial patterns,China's energy resources development has shown a characteristic of 'concentrating to the north and central areas,and evolving from linear-shaped to 'T-shaped' pattern gradually since 1949.(2) The structure evolution of China's energy resources development in general has shown a trend of 'coal proportion is dominant but decreasing,while oil and gas proportions are increasing' since 1949.(3) At the provincial scale,China's energy resources development potential could be divided into large,sub-large,general and small ranks,four in all.In the future,the spatial pattern of China's energy production will evolve from 'T-shaped' to '∏-shaped pattern'.These conclusions will help to clarify the temporal and spatial characteristics and laws of China's energy resources development,and will be beneficial for China to design scientific and rational energy development strategies and plans,coordinate spatial imbalance of energy production and consumption,ensure national energy supply,avoid energy resources waste and disorderly development,and promote regional sustainable development under the globalization background with changeful international energy market. | MA Beibei LU Chunxia ZHANG Lei CHENG Xiaoling | 2010 | Journal of Geographical Sciences2010,20,3: | 8 |
| 2 | Metalens-integrated compact imaging devices for wide-field microscopy显示文摘Metasurfaces have demonstrated unprecedented capabilities in manipulating light with ultrathin and flat architectures.Although great progress has been made in the metasurface designs and function demonstrations,most metalenses still only work as a substitution of conventional lenses in optical settings,whose integration advantage is rarely manifested.We propose a highly integrated imaging device with silicon metalenses directly mounted on a complementary metal oxide semiconductor image sensor,whose working distance is in hundreds of micrometers.The imaging performances including resolution,signal-to-noise ratio,and field of view(FOV)are investigated.Moreover,we develop a metalens array with polarization-multiplexed dual-phase design for a wide-field microscopic imaging.This approach remarkably expands the FOV without reducing the resolution,which promises a non-limited space-bandwidth product imaging for wide-field microscopy.As a result,we demonstrate a centimeter-scale prototype for microscopic imaging,showing uniqueness of meta-design for compact integration. | Beibei Xu Hanmeng Li Shenglun Gao Xia Hu Cheng Yang Chen Chen Feng Yan Shining Zhu Tao Li | 2020 | Advanced Photonics2020,2,6: | 6 |
| 3 | FGF1^(△HBS) prevents diabetic cardiomyopathy by maintaining mitochondrial homeostasis and reducing oxidative stress via AMPK/Nur77 suppression显示文摘As a classically known mitogen,fibroblast growth factor 1(FGF1)has been found to exert other pleiotropic functions such as metabolic regulation and myocardial protection.Here,we show that serum levels of FGF1 were decreased and positively correlated with fraction shortening in diabetic cardiomyopathy(DCM)patients,indicating that FGF1 is a potential therapeutic target for DCM.We found that treatment with a FGF1 variant(FGF1^(△HBS))with reduced proliferative potency prevented diabetes-induced cardiac injury and remodeling and restored cardiac function.RNA-Seq results obtained from the cardiac tissues of db/db mice showed significant increase in the expression levels of anti-oxidative genes and decrease of Nur77 by FGF1AHBS treatment.Both in vivo and in vitro studies indicate that FGF1^(△HBS) exerted these beneficial effects by markedly reducing mitochondrial fragmentation,reactive oxygen species(ROS)generation and cytochrome c leakage and enhancing mitochondrial respiration rate and β-oxidation in a 5;AMP-activated protein kinase(AMPK)/Nur77-dependent manner,all of which were not observed in the AMPK null mice.The favorable metabolic activity and reduced proliferative properties of FGF1^(△HBS) testify to its promising potential for use in the treatment of DCM and other metabolic disorders. | Dezhong Wang Yuan Yin Shuyi Wang Tianyang Zhao Fanghua Gong Yushuo Zhao Beibei Wang Yuli Huang Zizhao Cheng Guanghui Zhu Zengshou Wang Yang Wang Jun Ren Guang Liang Xiaokun Li Zhifeng Huang | 2021 | Signal Transduction and Targeted Therapy2021,6,4: | 6 |
| 4 | Polymersome-mediated cytosolic delivery of cyclic dinucleotide STING agonist enhances tumor immunotherapy显示文摘Cyclic dinucleotides(CDNs)as stimulator of interferon genes(STING)agonists capable of inducing strong antitumor innate immune response are highly promising for tumor immunotherapy.The efficacy of these CDNs is,however,reduced greatly by their fast clearance,poor cell uptake and inefficient cytosolic transportation.Here,we report that reduction-responsive biodegradable chimaeric polymersomes(CPs)markedly enhance tumor retention and cytosolic delivery of a synthetic CDN,ADU-S100,and bolster STING pathway activation in the tumor microenvironment and tumor draining lymph nodes,giving significantly better tumor repression and survival of B16F10 melanoma-bearing mice compared with free CDN control.The superiority of CPs-mediated CDN delivery is further verified in combination therapy with low-dose fractionated radiation,which brings about clearly stronger and longer-term immunotherapeutic effects and protection against tumor re-challenge.The development of nano-STING agonists that are able to overcome the delivery barriers of CDNs represents an effective strategy to potentiate cancer immunotherapy. | Huan Zheng Beibei Guo Xinyun Qiu Yifeng Xia Yan Qu Liang Cheng Fenghua Meng Zhiyuan Zhong | 2022 | Bioactive Materials2022,7,10: | 2 |
| 5 | Mesoporous Ternary Nitrides of Earth?Abundant Metals as Oxygen Evolution Electrocatalyst显示文摘As sustainable energy becomes a major concern for modern society,renewable and clean energy systems need highly active,stable,and low-cost catalysts for the oxygen evolution reaction(OER).Mesoporous materials offer an attractive route for generating efficient electrocatalysts with high mass transport capabilities.Herein,we report an efficient hard templating pathway to design and synthesize three-dimensional(3-D)mesoporous ternary nickel iron nitride(Ni3FeN).The as-synthesized electrocatalyst shows good OER performance in an alkaline solution with low overpotential(259 mV)and a small Tafel slope(54 mV dec?1),giving superior performance to IrO2 and RuO2 catalysts.The highly active contact area,the hierarchical porosity,and the synergistic effect of bimetal atoms contributed to the improved electrocatalytic performance toward OER.In a practical rechargeable Zn–air battery,mesoporous Ni3FeN is also shown to deliver a lower charging voltage and longer lifetime than RuO2.This work opens up a new promising approach to synthesize active OER electrocatalysts for energy-related devices. | Ali Saad Hangjia Shen Zhixing Cheng Ramis Arbi Beibei Guo Lok Shu Hui Kunyu Liang Siqi Liu John Paul Attfield Ayse Turak Jiacheng Wang Minghui Yang | 2020 | Nano-Micro Letters2020,12,6: | 2 |
| 6 | Proteomic Analysis of High Temperature Stress-Responsive Proteins in Chrysanthemum Leaves显示文摘Chrysanthemum is one of the most important ornamental flowers in the world,and temperature has a significant influence on its field production.In the present study,differentially expressed proteins were investigated in the leaves of Dendranthema grandiflorum‘Jinba’under high temperature stress using label-free quantitative proteomics techniques.The expressed proteins were comparatively identified and analyzed.A total of 1,463 heat-related,differentially expressed proteins were successfully identified by Liquid Chromatography-tandem Mass Spectrometry(LC-MS/MS),and 1,463 heat-related,differentially expressed proteins were successfully identified by mass spectrometry after a high temperature treatment.Among these,701 proteins were upregulated and 762 proteins were downregulated.The in-depth bioinformatics analysis of these differentially expressed proteins revealed that these were involved in energy metabolism pathways,protein metabolism,and heat shock.In the present study,the investigators determined the changes in the levels of some proteins,and their expression at the protein and molecular levels in chrysanthemum to help reveal the mechanism of heat resistance in chrysanthemum.Furthermore,the present study elucidated some of the proteins correlated to heat resistance in chrysanthemum,and their expression changes at the protein and molecular levels to help reveal the mechanism of heat resistance in this flower species.These results provide a theoretical basis for the selection of new heat resistant varieties of chrysanthemum in the field. | Xin Li Feiya Liao Qiqi Ma Beibei Jiang Yuanzhi Pan Cheng Luo Xinjie Wang Aining Ran | 2021 | Phyton-International Journal of Experimental Botany2021,90,5: | 1 |
| 7 | Integrated parameter inversion analysis method of a CFRD based on multi-output support vector machines and the clonal selection algorithm显示文摘 | Dongjian Zheng Lin Cheng Tengfei Bao Beibei Lv | 2013 | Computers and Geotechnics2013,,: | 1 |
| 8 | Shape-controlled Synthesis of Fe3O4 Nanocrystals with Incontinuous Multicavities显示文摘 | ZHAN Conghong CHENG Rongmin FANG Beibei ZHAO Lijun | 2016 | Chemical Research in Chinese Universities2016,32,2: | 1 |
| 9 | Recent Development of Photodeformable Crystals:From Materials to Mechanisms显示文摘Photodeformable materials are a class of molecules that can convert photon energy into mechanical energy,which have attracted tremendous attention in the last few decades.Owing to their unique photoinduced deformable properties,including fast lightresponse and diverse mechanical behaviors,photodeformable materials have exhibited great potential in many practical applications such as actuators,photoswitches,artificial muscles,and bioimaging.In this review,we sort out the current state of photodeformable crystals and classify them into six categories by molecular structures:diarylethenes,azobenzenes,anthracenes,olefins,triarylethylenes,and other systems.Three distinct light-responsive mechanisms,photocyclization,trans-cis isomerization,and photodimerization,are revealed to play significant roles in the molecular photodeformation.Their corresponding photodeformable behaviors such as twisting,bending,hopping,bursting,and curling,as well as the potential applications,are also discussed.Furthermore,the challenges and prospective development directions of photodeformable crystals are highlighted. | Cheng Huang Rongjuan Huang Simin Zhang Haodong Sun Hailan Wang Beibei Du Yuxin Xiao Tao Yu Wei Huang | 2021 | Research2021,,1: | 1 |
| 10 | Impact of Low-Carbon Power Policy on Carbon mitigation in Guangdong Province, China显示文摘 | BEIBEI CHENG HANCHENG DAI PENG WANG YANG XIE LI CHEN DAIQING ZHAO and TOSHIHIKO MASUI | 2015 | Energy Policy2015,,88: | 1 |
| 11 | Synthesis and Characterization of Poly(terephthalic acid-2,5-furandicarboxylic acid-1,8-octanediol) Copolyester显示文摘Terephthalic acid,2,5-furandicarboxylic acid and 1,8-octanediol were adopted as monomers and antimony trioxide as catalyst,and poly(terephthalic acid-2,5-furandicarboxylic acid-1,8-octanediol) copolyesters identified as PEOT-x,where x is the mole fraction of furandicarboxylic acid in the samples,were synthesized by direct esterification.The molecular structure of the copolyesters was characterized by FTIR and 1H NMR spectroscopy.Gel permeation chromatography (GPC),differential scanning calorimetry (DSC),and thermogravimetric analysis (TGA) were used to characterize the molecular weight,molar mass dispersity,glass transition temperature,and thermal stability of the copolyesters,respectively.The mechanical properties of the samples were also investigated.The number-average molecular weight (M_(n)) of the samples varies from 9 700-18 800 g/mol,and molar mass dispersity (■=M_(w)/M_(n)) from 2.15-3.34.The initial decomposition temperature of the copolyesters is in the 332-356 ℃ range,with maximum decomposition rates at 390-410 ℃,while the glass transition temperature (Tg) varies from 0-33 ℃.Mechanical test shows that PEOT-10 has the highest tensile strength,while PEOT-90 has the largest tensile modulus and elongation at break.The experimental results show that these copolyesters can be synthesized with relatively high molecular weights,good thermal stability,and fair mechanical properties,which makes them excellent replacements for commercial polyesters,such as PET,and these properties can be tuned through the relative amounts of biomass monomer 2,5-furandicarboxylic acid used in the reactions. | 程正载 CHENG Junpeng CHEN Jun XIONG Jing SUN Xin JIA Ruyan YUAN Beibei Gauthier Mario | 2021 | Journal of Wuhan University of Technology(Materials Science)2021,36,4: | 1 |
| 12 | Synthesis and Characterization of Novel Hydrolytically Degradable Polyesters显示文摘Six novel hydrolytically degradable polyesters were synthesized from thiodipropionic acid(TDPA)and five diols by melt polycondensation,and characterized by FT-IR,1H NMR,gel permeation chromatography,differential scanning calorimetry and thermogravimetry analysis.The polystyrene-equivalent number-average(Mn)and weight-average molecular weight(Mw)of these polyesters ranged from 4900-11100 Da and 7900-20879 Da,respectively,with PDI values of 1.48-1.98.The melting point varied from 62.3-127.9℃,and the 50%mass-loss temperature ranged between 387-417℃.The degradation of these polyesters was studied in terms of relative weight loss in distilled water at different pH.Weight losses of 14%-26%were obtained at pH 7.0,26%-38%at pH 6.0,and 32%-43%at pH 8.3 over a 20-week period.The ecotoxicity study suggested that safety of the synthesized polyesters for the eisenia foetida.These results indicate that these polyesters have a combination of good thermal and degradability behaviors,which can be tailored through selection of the diol monomers used in the synthesis. | SUN Xin CHENG Zhengzai DJOUONKEP Lesly Dasilva Wandji LAN Chupeng JIA Ruyan ZENG Sheng CHENG Junpeng TANG Ran LI Yi YUAN Beibei GAUTHLLER Mario | 2023 | Journal of Wuhan University of Technology(Materials Science)2023,38,2: | 0 |
| 13 | Physicochemical properties and antibacterial application of silver nanoparticles stabilized by whey protein isolate显示文摘Nano metal materials have been widely explored to be applied in medical,environmental,and material science.Among these nanoparticles,especially silver nanoparticles(AgNPs),have drawn increasing attention for antimicrobial applications.Most researchers are keen on the development of the biologically friendly capping reagents for the synthesis of AgNPs,instead of unfriendly organic polymers.In this study,the liquid chemical reduction method was used to synthesize AgNPs with edible whey protein isolate(WPI)as a capping reagent.These WPI-AgNPs had a broad size distribution(average diameter of 138.6 nm),and their dimensions could be readily controlled in the range of 22.5-149.6 nm by introducing different concentrations of chloride.Subsequently,it was confirmed that WPI-AgNPs were formed through two mechanisms,which were respectively reduced in situ(without the addition of NaCl)and ex situ(in presence of NaCl)to yield silver nanoparticles.The WPI-AgNPs synthesized in presence of 10 mM of NaCl as mediation reagent were stable at room temperature or 4℃ up to 3 months.Furthermore,the synthesized WPI-AgNPs had a good antibacterial activity toward pathogens including Gram-negative E.coli and Gram-positive S.aureus.The results shed light on method and capping reagent to stabilize silver nanoparticles,which highlighted the potential of WPI and chloride in metal nanoparticle synthesis. | Aoqiong Zeng Beibei Wang Cheng Zhang Ruijin Yang Shuhuai Yu Wei Zhao | 2022 | Food Bioscience2022,46,2: | 0 |
| 14 | New Technology of Multidirectional Loading Rotary Extrusion显示文摘To satisfy the requirements for the precise formation of large-scale high-performance lightweight components with inner ring reinforcement, a new multidirectional loading rotary extrusion forming technology is developed to match the linear motion with the rotary motion and actively increases the strong shear force. Its principle is that the radial force and rotating torque increase when the blank is axially extruded and loaded. Through the synergistic action of axial, radial, and rotating motions, the orderly fow of metal is controlled, and the cumulative severe plastic deformation (SPD) of an“uplift-trowel” micro-area is generated. Consequently, materials are uniformly strengthened and toughened. Simultaneously, through the continuous deformation of a punch “ellipse-circle,” a high reinforcement component is grown on the cylinder wall to achieve the high-quality formation of cylindrical parts or the inner-ring-reinforcement components. Additionally, the efective strain increases with rotation speed, and the maximum intensity on the basal plane decreases as the number of revolutions increase. The punch structure also afects the axial extrusion loading and equivalent plastic strain. Thus, the proposed technology enriches the plastic forming theory and widens the application feld of plastic forming. Furthermore, the formed large-scale high-performance inner-ring-stifened magnesium components have been successfully verifed in aerospace equipment, thereby solving the problems of integral forming and severe deformation strengthening and toughening. The developed technology has good prospects for mass production and application. | Zhimin Zhang Yong Xue Xing Zhang Beibei Dong Mei Cheng Zhe Chen | 2023 | Chinese Journal of Mechanical Engineering2023,36,5: | 0 |
| 15 | Sanguinarine suppresses cell proliferation, migration and invasion in nasopharyngeal carcinoma via inhibiting mTOR signaling显示文摘OBJECTIVE: To confirm the anti-NPC effect of sanguinarine(SA) through a series of wet experiments.METHODS: NPC cell viability was determined by proliferation experiment. Cell clone formation experiment, cell scratch test, transwell migration and invasion experiment and flow cytometry-based cell apoptosis assay were further performed. In addition, Western blotting was performed to investigate the cell signaling pathway. All the relevant experimental data were statistically processed using SPSS 16.0 software.RESULTS: The results showed that sanguinarine represented a time and dose dependent inhibition effects on NPC cell proliferation including the low differentiated CNE2 cells and high metastatic 5-8F cells, along with the cell cloning ability reduction. In addition, sanguinarine has a certain inhibitory effect on the invasion and migration of NPC cells. Mechanistically, sanguinarine displayed the anti-NPC effects mainly involved into the suppression of m TOR signaling and cell apoptosis, which is closely associated with the tumor growth and metastatic malignancy. CONCLUSIONS: Collectively, we discover that sanguinarine is a new high-efficiency anti-NPC monomer of Chinese medicine, with a value for the follow-up preclinical research. | YANG Mengzhe ZHANG Beibei LIANG Zhenqiang CHENG Nannan LüAnqiao YANG Jianyu GUO Xingzhe BAI Xianyu HUANG Yuanjiao JIAO Aijun XU Ning | 2022 | Journal of Traditional Chinese Medicine2022,42,5: | 0 |
| 16 | Nuciferine alleviates collagen-induced arthritic in rats by inhibiting the proliferation and invasion of human arthritis-derived fibroblast-like synoviocytes and rectifying Th17/Treg imbalance显示文摘Rheumatoid arthritis(RA)is a chronic autoimmune disorder marked by persistent synovial inflammation and joint degradation,posing challenges in the development of effective treatments.Nuciferine,an alkaloid found in lotus leaf,has shown promising anti-inflammatory and anti-tumor effects,yet its efficacy in RA treatment remains unexplored.This study investigated the antiproliferative effects of nuciferine on the MH7A cell line,a human RA-derived fibroblast-like synoviocyte,revealing its ability to inhibit cell proliferation,promote apoptosis,induce apoptosis,and cause G1/S phase arrest.Additionally,nuciferine significantly reduced the migration and invasion capabilities of MH7A cells.The therapeutic potential of nuciferine was further evaluated in a collagen-induced arthritis(CIA)rat model,where it markedly alleviated joint swelling,synovial hyperplasia,cartilage injury,and inflammatory infiltration.Nuciferine also improved collagen-induced bone erosion,decreased pro-inflammatory cytokines and serum immunoglobulins(IgG,IgG1,IgG2a),and restored the balance between T helper(Th)17 and regulatory T cells in the spleen of CIA rats.These results indicate that nuciferine may offer therapeutic advantages for RA by decreasing the proliferation and invasiveness of FLS cells and correcting the Th17/Treg cell imbalance in CIA rats. | WANG Hao GENG Xiaolong AI Fangbin YU Zhilun ZHANG Yan ZHANG Beibei LV Cheng GAO Ruiyang YUE Bei DOU Wei | 2024 | Chinese Journal of Natural Medicines2024,22,4: | 0 |
| 17 | Deflagration characteristics of freely propagating flames in magnesium hydride dust clouds显示文摘The flame propagation processes of MgH_(2)dust clouds with four different particle sizes were recorded by a high-speed camera.The dynamic flame temperature distributions of MgH_(2)dust clouds were reconstructed by the two-color pyrometer technique,and the chemical composition of solid combustion residues were analyzed.The experimental results showed that the average flame propagation velocities of 23μm,40μm,60μm and 103μm MgH_(2)dust clouds in the stable propagation stage were 3.7 m/s,2.8 m/s,2.1 m/s and 0.9 m/s,respectively.The dust clouds with smaller particle sizes had faster flame propagation velocity and stronger oscillation intensity,and their flame temperature distributions were more even and the temperature gradients were smaller.The flame structures of MgH_(2)dust clouds were significantly affected by the particle sinking velocity,and the combustion processes were accompanied by micro-explosion of particles.The falling velocities of 23μm and 40μm MgH_(2)particles were 2.24 cm/s and 6.71 cm/s,respectively.While the falling velocities of 60μm and 103μm MgH_(2)particles were as high as 15.07 cm/s and 44.42 cm/s,respectively,leading to a more rapid downward development and irregular shape of the flame.Furthermore,the dehydrogenation reaction had a significant effect on the combustion performance of MgH_(2)dust.The combustion of H_(2)enhanced the ignition and combustion characteristics of MgH_(2)dust,resulting in a much higher explosion power than the pure Mg dust.The micro-structure characteristics and combustion residues composition analysis of MgH_(2)dust indicated that the combustion control mechanism of MgH_(2)dust flame was mainly the heterogeneous reaction,which was affected by the dehydrogenation reaction. | Qiwei Zhang Yangfan Cheng Beibei Zhang Danyi Li Zhaowu Shen | 2024 | Defence Technology(防务技术)2024,31,1: | 0 |
| 18 | Recent Development of Photodeformable Crystals: From Materials to Mechanisms显示文摘Photodeformable materials are a class of molecules that can convert photon energy into mechanical energy,which have attracted tremendous attention in the last few decades.Owing to their unique photoinduced deformable properties,including fast lightresponse and diverse mechanical behaviors,photodeformable materials have exhibited great potential in many practical applications such as actuators,photoswitches,artificial muscles,and bioimaging.In this review,we sort out the current state of photodeformable crystals and classify them into six categories by molecular structures:diarylethenes,azobenzenes,anthracenes,olefins,triarylethylenes,and other systems.Three distinct light-responsive mechanisms,photocyclization,trans-cis isomerization,and photodimerization,are revealed to play significant roles in the molecular photodeformation.Their corresponding photodeformable behaviors such as twisting,bending,hopping,bursting,and curling,as well as the potential applications,are also discussed.Furthermore,the challenges and prospective development directions of photodeformable crystals are highlighted. | Cheng Huang Rongjuan Huang Simin Zhang Haodong Sun Hailan Wang Beibei Du Yuxin Xiao Tao Yu Wei Huang | 2022 | Research2022,,1: | 0 |
| 19 | Research Progress of HPV L1 Capsid Protein in Prediction of Cervical Lesions显示文摘Cervical cancer is one of the most common malignant gynecological tumors and has the second highest incidence of all malignancies in females.Chronic and persistent infection with High Risk Human Papillomavirus(HR-HPV)is the main cause of cervical cancer.There is a distinct lack of methodology by which to determine whether cervical epithelial dysplasia is cancerous following HPV infection.HPV L1 capsid protein is a major structural protein of human papillomavirus(HPV),and it is the main target of the local cellular immune response aiming to combat human papillomavirus after HPV infection within cervical cells.Greater understanding of HPV L1 capsid protein and its association with cervical cytology,histopathology,patient age and human papillomavirus viral load has the potential to contribute toward improved the diagnosis and management of cervical cancer,providing useful information for gynecological clinicians in the hope of improving patient treatment and quality of life.This article reviews the predictive utility of HPV L1 capsid protein for cervical lesions. | Jing Cheng Lin Xu Beibei Liu Biao Wang Xicui Long Zhihong Li Ruiting Wu Ruili Chen | 2020 | Proceedings of Anticancer Research2020,4,6: | 0 |
| 20 | Prediction of high-density polyethylene pyrolysis using kinetic parameters based on thermogravimetric and artificial neural networks显示文摘Pyrolysis is considered an attractive option and a promising way to dispose waste plastics.The thermogravimetric experiments of high-density polyethylene(HDPE)were conducted from 105℃ to 900℃ at different heating rates(10℃/min,20℃/min,and 30℃/min)to investigate their thermal pyrolysis behavior.We investigated four methods including three model-free methods and one modelfitting method to estimate dynamic parameters.Additionally,an artificial neural network model was developed by providing the heating rates and temperatures to predict the weight loss(wt.%)of HDPE,and optimized via assessing mean squared error and determination coefficient on the test set.The optimal MSE(2.6297×10^(−2))and R^(2) value(R^(2)>0.999)were obtained.Activation energy and preexponential factor obtained from four different models achieves the acceptable value between experimental and predicted results.The relative error of the model increased from 2.4%to 6.8%when the sampling frequency changed from 50 s to 60 s,but showed no significant difference when the sampling frequency was below 50 s.This result provides a promising approach to simplify the further modelling work and to reduce the required data storage space.This study revealed the possibility of simulating the HDPE pyrolysis process via machine learning with no significant accuracy loss of the kinetic parameters.It is hoped that this work could potentially benefit to the development of pyrolysis process modelling of HDPE and the other plastics. | Xiaoxiao Yin Junyu Tao Guanyi Chen Xilei Yao Pengpeng Luan Zhanjun Cheng Ning Li Zhongyue Zhou Beibei Yan | 2023 | Frontiers of Environmental Science & Engineering2023,17,1: | 0 |