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Modelling the development of biological structures displaying longitudinal geometries in vitro:culturing pluripotent stem cells on plasma-treated,growth factor-coupled polycaprolactone fibres

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Engineered Regeneration 2024年第1期5卷 124-138页

作者： Badwi B.Boumelhem Stuart T.Fraser Syamak Farajikhah Rachel A.Shparberg Michael B.Morris Marcela M.M.Bilek Anyu Zhang Behnam Akhavan Simon Fleming Maryanne Large school of Physics Faculty of ScienceUniversity of SydneyAustralia Sydney Nano Institute University of SydneyAustralia school of Chemical and biomolecular Engineering University of SydneyAustralia school of Medical sciences Faculty of Medicine and HealthUniversity of SydneyAustralia school of Biomedical Engineering Faculty of EngineeringUniversity of SydneyAustralia school of Engineering University of NewcastleCallaghanNSW 2308Australia Hunter Medical Research Institute(HMRI) Precision Medicine ProgramNew Lambton Heights NSW 2305Australia

Many biological structures such as nerves,blood and lymphatic vessels,and muscle fibres exhibit longitudinal ge-ometries with distinct cell types extending along both the length and width of internal linear *** these three-dimensional structures in vitro is challenging:the best-defined stem-cell differentiation systems are mono-layer cultures or organoids using pluripotent stem *** stem cells can differentiate into functionally mature cells depending on the signals received,holding great promise for regenerative ***,the integration of in vitro differentiated cell types into diseased tissue remains a *** scaffolds can bridge this gap if the appropriate signalling systems are incorporated into the ***,we have taken a biomimicry approach to generate longitudinal structures in *** this approach,mouse embryonic stem cells are directed to differentiate to specific cell types on the surface of polycaprolactone(PCL)fibres treated by plasma-immersion ion implantation and to which with lineage-specifying molecules have been covalently *** demonstrate the simplicity and utility of our method for efficiently generating high yields of the following cell types from these pluripotent stem cells:neurons,vascular endothelial cells,osteoclasts,adipocytes,and cells of the erythroid,myeloid,and lymphoid *** arranged plasma-treated scaffolds with differentiated cell types could ultimately serve as a means for the repair or treatment of diseased or damaged tissue.

关键词： Pluripotent stem cells Lineage commitment Growth factors Biomaterial engineering Plasma-immersion ion implantation Covalent biomolecule attachment Polycaprolactone

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Customized scaffolds for large bone defects using 3D‑printed modular blocks from 2D‑medical images

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Bio-Design and Manufacturing 2024年第1期7卷 74-87页

作者： Anil AAcar Evangelos Daskalakis Paulo Bartolo Andrew Weightman Glen Cooper Gordon Blunn Bahattin Koc Faculty of Engineering and Natural sciences Sabanci UniversityIstanbul 34956Türkiye D Bioprinting Laboratory Sabanci University Nanotechnology Research and Application CenterIstanbul 34956Türkiye school of Mechanical Aerospace and Civil EngineeringManchester Institute of BiotechnologyUniversity of ManchesterManchester M139PLUK Singapore Centre for 3D Printing School of Mechanical and Aerospace EngineeringNanyang Technological UniversitySingapore 639798Singapore school of Pharmacy and Biomedical sciences University of PortsmouthPortsmouth PO12UPUK

Additive manufacturing(AM)has revolutionized the design and manufacturing of patient-specific,three-dimensional(3D),complex porous structures known as scaffolds for tissue engineering *** use of advanced image acquisition techniques,image processing,and computer-aided design methods has enabled the precise design and additive manufacturing of anatomically correct and patient-specific implants and ***,these sophisticated techniques can be timeconsuming,labor-intensive,and ***,the necessary imaging and manufacturing equipment may not be readily available when urgent treatment is needed for trauma *** this study,a novel design and AM methods are proposed for the development of modular and customizable scaffold blocks that can be adapted to fit the bone defect area of a *** modular scaffold blocks can be combined to quickly form any patient-specific scaffold directly from two-dimensional(2D)medical images when the surgeon lacks access to a 3D printer or cannot wait for lengthy 3D imaging,modeling,and 3D printing during *** proposed method begins with developing a bone surface-modeling algorithm that reconstructs a model of the patient’s bone from 2D medical image measurements without the need for expensive 3D medical imaging or *** algorithm can generate both patient-specific and average bone ***,a biomimetic continuous path planning method is developed for the additive manufacturing of scaffolds,allowing porous scaffold blocks with the desired biomechanical properties to be manufactured directly from 2D data or *** algorithms are implemented,and the designed scaffold blocks are 3D printed using an extrusion-based AM *** and instructions are also provided to assist surgeons in assembling scaffold blocks for the self-repair of patient-specific large bone defects.

关键词： Additive manufacturing Modular scaffolds Large bone defect Customized scaffold design Patient-specific scaffolds

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Analysis and Characterization of the GABA Transaminase and Succinate Semialdehyde Dehydrogenase Genes in the Microalga Isochrysis zhanjiangensis in Response to Abiotic Stresses

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Journal of Ocean University of China 2024年第3期23卷 775-785页

作者： TIAN Jiaojiao ZHANG Lin LU Xinyue YE Lingzhi WU Yuanyuan CHEN Deshui CAO Jiayi JIANG Jiaxin XU Jilin YAN Xiaojun Key Laboratory of Marine biotechnology of Zhejiang Province School of Marine SciencesNingbo UniversityNingbo 315211China Key Laboratory of Aquacultural biotechnology Ministry of Education Ningbo UniversityNingbo 315211China Laizhou Bay Marine Technology Co. Ltd.Yantai 261400China Fujian Dalai Seed Science and Technology Co. Ltd.Ningde 352101China

Gamma-aminobutyric acid(GABA),widely existing in different organisms,is rapidly accumulated in plants in response to environmental *** main biosynthesis and degradation pathways of GABA constitute the GABA shunt,which is tied to the tricarboxylic acid(TCA)*** transaminase(GABA-T)and succinate semialdehyde dehydrogenase(SSADH)are two essential enzymes for the GABA degradation *** there are abundant studies on GABA shunt in higher plants at the physiological and genetic levels,research on its role in microalgae remains *** study aimed at exploring the function of GABA-T and SSADH genes in Isochrysis zhanjiangensis,an important diet microalga,under different *** cloned two GABA-T genes,IzGABA-T1 and IzGABA-T2,and one SSADH gene IzSSADH from Isochrysis zhanjiangensis and conducted heterologous expression *** results showed that the overexpression of IzGABA-T1 or IzGABA-T2 enhanced the survival rates of yeast transformants under heat or NaCl stress,while the overexpression of IzSSADH improved yeast tolerance to NaCl stress but had no obvious effect on heat ***,the results of quantitative real-time polymerase chain reaction(qPCR)showed that IzGABA-T1 transcription increased in the HT(salinity 25,35℃)and LS(salinity 15,25℃)*** 24 h,the IzGABA-T2 transcriptions increased in the HT,LS,and HS(salinity 35,25℃)groups,but their transcription levels decreased in all groups at 48 *** transcription increased in the LS *** results suggest that IzGABA-T1,IzGABA-T2,and IzSSADH are associated with temperature and salinity stresses and possess a certain preference for different stresses.

关键词： abiotic stress GABA heterologous expression Isochrysis zhanjiangensis transcription

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Molecular characterization of an outbreak-involved Bacillus anthracis strain confirms the spillover of anthrax from West Africa

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Infectious Diseases of Poverty 2024年第1期13卷 93-94页

作者： Shuchao Wang Roland Suluku Mohamed B.Jalloh Ahmed F.Samba Baogui Jiang Yubiao Xie Doris Harding Mengyao Zhang Foday Sahr Mahmud E.Sesay James S.Squire Mohamed A.Vandi Moinina N.Kallon Shoufeng Zhang Rongliang Hu Yuee Zhao Zhiqiang Mi Changchun Veterinary Research Institute Chinese Academy of Agricultural Sciences Changchun China Department of Animal sciences School of Agriculture and Food Sciences Njala University Njala Sierra Leone Department of Microbiology College of Medicine and Allied Health Sciences University of Sierra Leone Freetown Sierra Leone Ministry of Agriculture and Food sciences Freetown Sierra Leone Beijing Institute of Microbiology and Epidemiology Beijing China Ministry of Health and Sanitation Freetown Sierra Leone Beijing Institute of biotechnology Beijing China

Background Anthrax,a zoonotic disease caused by the spore-forming bacterium Bacillus anthracis,remains a major global public health concern,especially in countries with limited *** Leone,a West African country historically plagued by anthrax,has almost been out of report on this disease in recent *** this study,we described a large-scale anthrax outbreak affecting both animals and humans and attempted to characterize the *** The causative agent of the animal outbreak in Port Loko District,Sierra Leone,between March and May 2022 was identified using the nanopore sequencing technique.A nationwide active surveillance was implemented from May 2022 to June 2023 to monitor the occurrence of anthrax-specific symptoms in *** cases were subsequently verified using quantitative polymerase chain ***-genome sequencing was accomplished by combining long-read and short-read sequencing *** phylogenetic analysis was performed based on the full-chromosome single nucleotide *** The outbreak in Port Loko District,Sierra Leone,led to the death of 233 animals between March 26th and May 16th,*** ruled out the initial suspicion of Anaplasma species and successfully identified *** as the causative agent of the *** a result of the government's prompt response,out of the 49 suspected human cases identifed during the one-year active surveillance,only 6 human cases tested positive,all within the frst month after the official declaration of the *** phylogenetic analysis indicated that the BaSL2022 isolate responsible for the outbreak was positioned in the ***.153 clade within the TransEuroAsian group of *** We successfully identifed a large-scale anthrax outbreak in Sierra *** causative isolate of ***,BaSL2022,phylogenetically bridged other lineages in ***.153 clade and neighboring genetic groups,***.144 and ***.148,

关键词： Molecular identification Anthrax Bacillus anthracis Sierra Leone Phylogeny Single nucleotide polymorphism

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PRRSV degrades MDA5 via dual autophagy receptors P62 and CCT2 to evade antiviral innate immunity

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Virologica Sinica 2024年第2期39卷 264-276页

作者： Ruiqi Sun Yanyu Guo Lilin Zhang Huixia Zhang Boxuan Yin Xiaoyang Li Changyan Li Liu Yang Lei Zhang Zexing Li Jinhai Huang school of Life sciences Tianjin UniversityTianjin300072China

Porcine reproductive and respiratory syndrome virus(PRRSV)is a major economically devastating pathogen that has evolved various strategies to evade innate *** of antiviral interferon largely promotes PRRSV immunoevasion by utilizing cytoplasmic melanoma differentiation-associated gene 5(MDA5),a receptor that senses viral *** this study,the downregulated transcription and expression levels of porcine MDA5 in PRRSV infection were observed,and the detailed mechanisms were *** found that the interaction between P62 and MDA5 is enhanced due to two factors:the phosphorylation modification of the autophagic receptor P62 by the upregulated kinase CK2αand the K63 ubiquitination of porcine MDA5 catalyzed by the E3 ubiquitinase TRIM21 in PRRSV-infected *** a result of these modifications,the classic P62-mediated autophagy is ***,porcine MDA5 interacts with the chaperonin containing TCP1 subunit 2(CCT2),which is enhanced by PRRSV *** interaction promotes the aggregate formation and autophagic clearance of MDA5-CCT2-nsp3 independently of *** summary,enhanced MDA5 degradation occurs in PRRSV infection via two autophagic pathways:the binding of MDA5 with the autophagy receptor P62 and the aggrephagy receptor CCT2,leading to intense innate immune *** research reveals a novel mechanism of immune evasion in PRRSV infection and provides fundamental insights for the development of new vaccines or therapeutic strategies.

关键词： Porcine reproductive and respiratory syndrome virus(PRRSV) nsp3 Autophagy MDA5

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Green light mediates atypical photomorphogenesis by dual modulation of Arabidopsis phytochromes B and A

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Journal of Integrative Plant Biology 2024年第9期66卷 1915-1933页

作者： Miqi Xu Yi‐Yuan Wang Yujie Wu Xiuhong Zhou Ziyan Shan Kunying Tao Kaiqiang Qian Xuncheng Wang Jian Li Qingqing Wu Xing Wang Deng Jun‐Jie Ling National Engineering Laboratory of Crop Stress Resistance Breeding School of Life SciencesAnhui Agricultural UniversityHefei 230036China Province Key Laboratory of Resource Insect Biology and Innovative Utilization School of Life SciencesAnhui Agricultural UniversityHefei 230036China biotechnology Center State Key Laboratory of Tea Plant Biology and UtilizationSchool of Tea and Food Sciences and TechnologyAnhui Agricultural UniversityHefei 230036China Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China Institute of Plant and Environment ProtectionBeijing Academy of Agriculture and Forestry SciencesBeijing 100097China College of Life sciences Nanjing Normal UniversityNanjing 210023China State Key Laboratory of Protein and Plant Gene Research Peking–Tsinghua Center for Life SciencesSchool of Advanced Agriculture Sciencesand School of Life SciencesPeking UniversityBeijing 100871China State Key Laboratory of Wheat Improvement Shandong Laboratory of Advanced Agricultural Sciences at WeifangPeking University Institute of Advanced Agricultural SciencesWeifang 261000China

Although green light(GL)is located in the middle of the visible light spectrum and regulates a series of plant developmental processes,the mechanism by which it regulates seedling development is largely *** this study,we demonstrated that GL promotes atypical photomorphogenesis in Arabidopsis thaliana via the dual regulations of phytochrome B(phyB)and *** the Pr-to-Pfr conversion rates of phyB and phyA under GL were lower than those under red light(RL)in a fluence rate-dependent and time-dependent manner,long-term treatment with GL induced high Pfr/Pr ratios of phyB and ***,GL induced the formation of numerous small phyB photobodies in the nucleus,resulting in atypical photomorphogenesis,with smaller cotyledon opening angles and longer hypocotyls in seedlings compared to *** abundance of phyA significantly decreased after short-and long-term GL *** determined that four major PHYTOCHROME-INTERACTING FACTORs(PIFs:PIF1,PIF3,PIF4,and PIF5)act downstream of phyB in GL-mediated cotyledon *** addition,GL plays opposite roles in regulating different *** example,under continuous GL,the protein levels of all PIFs decreased,whereas the transcript levels of PIF4 and PIF5 strongly increased compared with dark *** together,our work provides a detailed molecular framework for understanding the role of the antagonistic regulations of phyB and phyA in GL-mediated atypical photomorphogenesis.

关键词： cotyledon development green light photobody phytochrome PIF3

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Effects of dietary supplementation with tropical microfungi Mucor circinelloides and Trichoderma harzianum powder on growth performance,bacterial communities,and the biomass nutritional profile of white shrimp grow-out culture(Litopenaeus vannamei)

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Aquaculture and Fisheries 2024年第2期9卷 245-255页

作者： Robi Binur Salsabila Mutiara Kanti Muharam Tia Fahara Magdalena Lenny Situmorang I Nyoman Pugeg Aryantha Gede Suantika Department of Biology Faculty of Mathematics and Natural SciencesUniversitas PapuaJl.Gunung Salju AmbanManokwari98314Indonesia Microbial biotechnology Research Group School of Life Sciences and TechnologyInstitut Teknologi BandungJl.Ganesha 10Bandung40132Indonesia Biosciences and biotechnology Research Center Institut Teknologi BandungJl.Ganesha 10Bandung40132Indonesia

Microfungi have been explored further as supplement constituents in shrimp culture due to their rich protein,lipid,essential amino acids,fatty acids,and various bioactive *** researchers have evaluated the effects of two microfungi powders(Mucor circinelloides and Trichoderma harzianum)as feed supplements on growth performance,bacterial communities,and the biomass nutritional profile of white shrimp(Litopenaeus vannamei).The results showed that commercial/artificial feed(Feng-Li)with supplementation microfungi powder had a different effect on white shrimp growth performance than control after 62 days of the grow-out *** with 1.5%*** powder(M-2)could improve the growth performance of white shrimp,especially the survival rate(81.33%),final body weight(5.21 g),and shrimp biomass(211.35 g).In contrast,supplementation with 1.5%*** powder(T-2)did not improve the growth performance of white shrimp compared to control(p>0.05).Furthermore,it also affected the profile of the bacterial community in culture water as well as in shrimp *** with both microfungi could reduce the total number of bacteria in culture water at the end of the experiment,where the lowest number was obtained in treatment T-2(3.9×10^(5)CFU/mL),followed by M-2(9.9×10^(5)CFU/mL)and control(4.4×10^(6)CFU/mL).In the culture water,20 isolates of culturable bacteria were found during the trial,with the dominant bacteria in M-2:Bacillus cereus,Bacillus velezensis,Gordonia polyisoprenivorans,T-2:Acinetobacter sp.,Gordonia polyisoprenivorans,Micrococcus *** on average well colour development(AWCD),the highest bacterial activity was in the M-2(0.297-0.707),followed by T-2(0.226-0.717)and control(0.094-0.694).The highest substrate group utilised in M-2 and T-2 were polymers(0.896 and 1.348)and control:amines(0.100).The highest Shannon diversity index was obtained in the M-2(2.508),followed by control(2.286)and the T-2(2.157).As many as

关键词： Microfungi Nutrition White shrimp Litopenaeus vannamei Grow-out Bacterial activity Probiotic bacteria

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Large-scale interplant exchange of macromolecules between soybean and dodder under nutrient stresses

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Plant Diversity 2024年第1期46卷 116-125页

作者： Jingxiong Zhang Shalan Li Wenxing Li Zerui Feng Shuhan Zhang Xijie Zheng Yuxing Xu Guojing Shen Man Zhao Guoyan Cao Xuna Wu Jianqiang Wu Department of Economic Plants and biotechnology Yunnan Key Laboratory for Wild Plant ResourcesKunming Institute of BotanyChinese Academy of SciencesKunming 650201China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan and Center for Life Science School of Life SciencesYunnan UniversityKunming 650500China

Parasitic plants and their hosts communicate through haustorial *** deficiency is a common stress for plants,yet little is known about whether and how host plants and parasites communicate during adaptation to such nutrient *** this study,we used transcriptomics and proteomics to analyze how soybean(Glycine max)and its parasitizing dodder(Cuscuta australis)respond to nitrate and phosphate deficiency(-N and-P).After-N and-P treatment,the soybean and dodder plants exhibited substantial changes of transcriptome and proteome,although soybean plants showed very few transcriptional responses to-P and dodder did not show any transcriptional changes to either-N ***,large-scale interplant transport of mRNAs and proteins was *** the mobile mRNAs only comprised at most 0.2%of the transcriptomes,the foreign mobile proteins could reach 6.8%of the total proteins,suggesting that proteins may be the major forms of interplant ***,the interplant mobility of macromolecules was specifically affected by the nutrient regimes and the transport of these macromolecules was very likely independently *** study provides new insight into the communication between host plants and parasites under stress conditions.

关键词： Cuscuta Mobile molecules Nutrient deficiency Host plant-parasitic plant interaction Interplant transport Systemic signaling

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Stabilization or degradation?Post-translational modifications of JAZ proteins in plants

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Molecular Plant 2024年第7期17卷 1002-1004页

作者： Xiaoyan Xu Jianping Hu Zheng Yuan Joint International Research Laboratory of Metabolic&Developmental sciences School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghai200240China Department of Energy Plant Research Laboratory and Plant Biology Department Michigan State UniversityEast LansingMI 48824USA

Jasmonates(JAs)are essential hormones that regulate plant responses to biotic and abiotic stresses and are involved in various developmental processes,including flowering time control,floral organ development,and fertility of male and female gametes(Howe et al.,2018).However,our understanding of the mechanisms by which JAs integrate multiple signals to regulate diverse physiological processes remains *** the canonical JA signaling pathway,activated JAs are perceived by the F-box protein receptor CORONATINE INSENSITIVE 1(COl1),which induces the interaction between COl1 and the Jas domain of the repressor proteins JASMONATE-ZIM DOMAIN PROTEINs(JAZs),leading to the ubiquitination and degradation of JAZ *** proteolytic destruction of the JAZ repressors is a crucial step that releases the inhibition of JAZs on the JA response transcription factor MYC2,allowing MYC2 to activate the expression of downstream genes(Howe et al.,2018).Therefore,the stability and specific spatiotemporal expression pattern of the JAZ proteins are critical for the regulation of JA signaling output,as they determine the activation and repression of JA responses.

关键词： translational fertility release

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Cloud-Model-Based Feature Engineering to Analyze the Energy-Water Nexus of a Full-Scale Wastewater Treatment Plant

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Engineering 2024年第5期36卷 63-75页

作者： Shan-Shan Yang Xin-Lei Yu Chen-Hao Cui Jie Ding Lei He Wei Dai Han-Jun Sun Shun-Wen Bai Yu Tao Ji-Wei Pang Nan-Qi Ren State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150000China Key Laboratory of Environmental biotechnology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China school of Civil and Environmental Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055China China Energy Conservation and Environmental Protection Group Beijing 100089China

Wastewater treatment plants(WWTPs)are important and energy-intensive municipal *** energy consumption and relatively low operating performance are major challenges from the perspective of carbon ***,water-energy nexus analysis and models for WWTPs have rarely been reported to *** this study,a cloud-model-based energy consumption analysis(CMECA)of a WWTP was conducted to explore the relationship between influent and energy consumption by clustering its influent’s *** principal component analysis(PCA)and K-means clustering were applied to classify the influent condition using water quality and volume *** energy consumption of the WWTP is divided into five standard evaluation levels,and its cloud digital characteristics(CDCs)were extracted according to bilateral constraints and golden ratio *** results showed that the energy consumption distribution gradually dispersed and deviated from the Gaussian distribution with decreased water concentration and *** days with high energy efficiency were extracted via the clustering method from the influent category of excessive energy consumption,represented by a compact-type energy consumption distribution curve to identify the influent conditions that affect the steady distribution of energy *** local WWTP has high energy consumption with 0.3613 kW·h·m^(-3)despite low influent concentration and volumes,across four consumption levels from low(I)to relatively high(IV),showing an unsatisfactory operation and management *** average oxygenation capacity,internal reflux ratio,and external reflux ratio during high energy efficiency days recognized by further clustering were obtained(0.2924-0.3703 kg O_(2)·m^(-3),1.9576-2.4787,and 0.6603-0.8361,respectively),which could be used as a guide for the days with low energy ***,this study offers a water-energy nexus analysis method to identify influent conditions with operational manageme

关键词： Wastewater treatment plants Cloud-model theory Data mining Principal component analysis K-means clustering Cloud-model-based energy consumption analysis

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