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An analytical transient coal permeability model:Sorption non-equilibrium index-based swelling switch

Journal of Rock Mechanics and Geotechnical Engineering 2024年第4期16卷 1175-1191页

作者： Xingxing Liu Jishan Liu Liang Chen Jinchang Sheng Huimin wang college of Civil and Transportation Engineering Hohai UniversityNanjing210098China School of Engineering The University of Western Australia35 Stirling HighwayCrawleyWA6009Australia college of water Conservancy and Hydropower Engineering Hohai UniversityNanjing210098China

Long-term permeability experiments have indicated that sorption-induced swelling can switch from internal to bulk depending on the evolutive sorption ***,this sorption swelling switch mechanism has not been considered in current analytical permeability *** study introduces a normalized sorption non-equilibrium index(SNEI)to characterize the sorption status,quantify the dynamical variations of matrix swelling accumulation and internal swelling partition,and formulate the sorption swelling switch *** incorporation of this index into the extended total effective stress concept leads to an analytical transient coal permeability *** results show that the sorption swelling switch itself results in the permeability switch under stress-constrained conditions,while the confined bulk swelling suppresses the permeability recovery to the continuous reduction under displacement-constrained *** verifications show that current experimental observations correspond to the early stages of the transient process,and they could be extended to the whole process with these *** study demonstrates the importance of the sorption swelling switch in determining permeability evolution using simple boundary *** provides new insights into experimentally revealing the sorption swelling switch in the future,and underscores the requirement of a rigorous model for complex coupled processes in large-scale coal seams.

关键词： Coal permeability Sorption swelling switch Sorption non-equilibrium Boundary conditions

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Investigation and optimization of high-valent Ta-doped SrFeO_(3-δ)as air electrode for intermediate-temperature solid oxide fuel cells

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International Journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2102-2109页

作者： Shanshan Jiang Hao Qiu Shaohua Xu Xiaomin Xu Jingjing Jiang Beibei Xiao Paulo Sérgio Barros Juliao) Chao Su Daifen Chen Wei Zhou School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212100China wa School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerth WA6102Australia Institute of Analysis and Testing Beijing Academy of Science and TechnologyBeijing 100089China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China

To explore highly active and thermomechanical stable air electrodes for intermediate-temperature solid oxide fuel cells(ITSOFCs),10mol%Ta5+doped in the B site of strontium ferrite perovskite oxide(SrTa_(0.1)Fe_(0.9)O_(3-δ),STF)is investigated and *** effects of Ta^(5+)doping on structure,transition metal reduction,oxygen nonstoichiometry,thermal expansion,and electrical performance are evaluated *** 10mol%Ta^(5+)doping,the thermal expansion coefficient(TEC)decreased from 34.1×10^(-6)(SrFeO_(3-δ))to 14.6×10^(-6) K^(-1)(STF),which is near the TEC of electrolyte(13.3×10^(-6) K^(-1) for Sm_(0.2)Ce_(0.8)O_(1.9),SDC),indicates excellent thermomechanical *** 550-750℃,STF shows superior oxygen vacancy concentrations(0.262 to 0.331),which is critical in the oxygen-reduction reaction(ORR).Oxygen temperature-programmed desorption(O_(2)-TPD)indicated the thermal reduction onset temperature of iron ion is around 420℃,which matched well with the inflection points on the thermos-gravimetric analysis and electrical conductivity *** 600℃,the STF electrode shows area-specific resistance(ASR)of 0.152Ω·cm^(2) and peak power density(PPD)of 749 mW·cm^(-2).ORR activity of STF was further improved by introducing 30wt%Sm_(0.2)Ce_(0.8)O_(1.9)(SDC)powder,STF+SDC composite cathode achieving outstanding ASR value of 0.115Ω·cm2 at 600℃,even comparable with benchmark cobalt-containing cathode,Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ)(BSCF).Distribution of relaxation time(DRT)analysis revealed that the oxygen surface exchange and bulk diffusion were improved by forming a composite *** 650℃,STF+SDC composite cathode achieving an outstanding PPD of 1117 mW·cm^(-2).The excellent results suggest that STF and STF+SDC are promising air electrodes for IT-SOFCs.

关键词： strontium ferrite-based perovskite Ta doping composite cathode intermediate-temperature solid oxide fuel cells

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Additively manufactured Ti–Ta–Cu alloys for the next-generation load-bearing implants

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International Journal of Extreme Manufacturing 2024年第1期6卷 353-374页

作者： Amit Bandyopadhyay Indranath Mitra Sushant Ciliveri Jose D Avila William Dernell Stuart B Goodman Susmita Bose W.M.Keck Biomedical Materials Research Laboratory School of Mechanical and Materials EngineeringWashington State UniversityPullmanWA 99164United States of America Veterinary Clinical Sciences College of Veterinary MedicineWashington State UniversityPullmanWA 99164United States of America Department of Orthopedic Surgery Stanford University Medical CenterRedwood CityCA 94063United States of America

Bacterial colonization of orthopedic implants is one of the leading causes of failure and clinical complexities for load-bearing metallic implants. Topical or systemic administration of antibiotics may not offer the most efficient defense against colonization, especially in the case of secondary infection, leading to surgical removal of implants and in some cases even limbs. In this study, laser powder bed fusion was implemented to fabricate Ti3Al2V alloy by a 1:1 weight mixture of CpTi and Ti6Al4V powders. Ti-Tantalum(Ta)–Copper(Cu) alloys were further analyzed by the addition of Ta and Cu into the Ti3Al2V custom alloy. The biological,mechanical, and tribo-biocorrosion properties of Ti3Al2V alloy were evaluated. A 10 wt.% Ta(10Ta) and 3 wt.% Cu(3Cu) were added to the Ti3Al2V alloy to enhance biocompatibility and impart inherent bacterial resistance. Additively manufactured implants were investigated for resistance against Pseudomonas aeruginosa and Staphylococcus aureus strains of bacteria for up to 48 h. A 3 wt.% Cu addition to Ti3Al2V displayed improved antibacterial efficacy, i.e.78%–86% with respect to CpTi. Mechanical properties for Ti3Al2V–10Ta–3Cu alloy were evaluated, demonstrating excellent fatigue resistance, exceptional shear strength, and improved tribological and tribo-biocorrosion characteristics when compared to Ti6Al4V. In vivo studies using a rat distal femur model revealed improved early-stage osseointegration for alloys with10 wt.% Ta addition compared to CpTi and Ti6Al4V. The 3 wt.% Cu-added compositions displayed biocompatibility and no adverse infammatory response in vivo. Our results establish the Ti3Al2V–10Ta–3Cu alloy’s synergistic effect on improving both in vivo biocompatibility and microbial resistance for the next generation of load-bearing metallic implants.

关键词： Ti6Al4V load-bearing implants additive manufacturing 3D printing antibacterial performance

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Disentangling the contributions of arbuscular mycorrhizal fungi to soil multifunctionality

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Pedosphere 2024年第2期34卷 269-278页

作者： Fayuan waNG Zed RENGEL college of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042(China) Uwa School of Agriculture and Environment University of Western AustraliaPerth WA 6009(Australia) Institute for Adriatic Crops and Karst Reclamation Split 21000(Croatia)

Soil multifunctionality represents a range of soil processes driven by the interactions between soil abiotic and biotic *** a group of ubiquitous fungi that form mutualistic symbiotic associations with a vast array of terrestrial plants,arbuscular mycorrhizal(AM)fungi may play a critical role in maintaining soil multifunctionality,but the characteristics of their contributions remain to be *** mini review aims to disentangle the contributions of AM fungi to soil *** provide a framework of concepts about AM fungi making crucial contributions to maintaining multiple soil functions,including primary productivity,nutrient cycling,water regulation and purification,carbon and climate regulation,habitat for biodiversity,disease and pest control,and pollutant degradation and detoxification,via a variety of pathways,particularly contributing to soil and plant *** review contends that AM fungi,as a keystone component of soil microbiome,can govern soil multifunctionality,ultimately promoting ecosystem services.

关键词： carbon neutrality ecosystem functions and services nutrient cycling organic matter decomposition soil functions

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Impact of Social Determinants of Health on Self-Perceived Resilience: An Exploratory Study of Two Cohorts of Adults with Congenital Heart Disease

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Congenital Heart Disease 2024年第1期19卷 33-48页

作者： Albert Osom Krysta S.Barton Katie Sexton Lyndia Brumback Joyce P.Yi-Frazier Abby R.Rosenberg Ruth Engelberg Jill M.Steiner Department of Biostatistics University of WashingtonSeattleWA98195USA Biostatistics Epidemiology and Analytics for Research(BEAR)Core Seattle Children’s Research InstituteSeattleWA98101USA college of Medicine University of WashingtonSeattleWA98195USA Center for Clinical and Translational Research Seattle Children’s Research InstituteSeattleWA98101USA Department of Psychosocial Oncology and Palliative Care Dana-Farber Cancer InstituteDepartment of MedicineBoston Children’s HospitalBostonMA02215USA Department of Pediatrics Harvard Medical SchoolBostonMA02215USA Division of Pulmonary Critical Care and Sleep MedicineDepartment of Medicine&Cambia Palliative Care Center of ExcellenceUniversity of WashingtonHarborview Medical CenterSeattleWA98104USA Division of Cardiology Department of Medicine&Cambia Palliative Care Center of ExcellenceUniversity of WashingtonSeattleWA98195USA

Social determinants of health(SDOH)affect quality of *** investigated SDOH impacts on self-perceived resilience among people with adult congenital heart disease(ACHD).Secondary analysis of data from two com-plementary studies:a survey study conducted May 2021–June 2022 and a qualitative study conducted June 2020–August *** was assessed through CD-RISC10 score(range 0–40,higher scores reﬂect greater self-perceived resilience)and interview *** and SDOH(education,employment,living situa-tion,monetary stability,ﬁnancial dependency,area deprivation index)data were collected by healthcare record review and *** used linear regression with robust standard errors to analyze survey data and performed a thematic analysis of interview *** participants(N=127)mean age was 42±14 years;51%were female,87%*** was moderate(75%)or complex(25%);41%functional class C or ***(mean 30±7)varied by monetary stability:compared to people with difﬁculty paying bills,resilience was 15.0 points higher(95%CI:6.9–23.1,pwas 32 years(range 22–44);52%were female,72%*** was moderate(56%)or complex(44%);76%functional class C or *** discussed factors affecting resilience aligned with each of the major SDOH,prominently,economic stability and healthcare access and *** stability may be important for supporting self-perceived resi-lience in *** knowledge can inform the development of resilience interventions for this population.

关键词： Social determinants of health adult congenital heart disease resilience ﬁnancial stability

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Machine learning ensemble model prediction of northward shift in potato cyst nematodes(Globodera rostochiensis and ***)distribution under climate change conditions

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Journal of Integrative Agriculture 2024年第10期23卷 3576-3591页

作者： Yitong He Guanjin wang Yonglin Ren Shan Gao Dong Chu Simon J.McKirdy Shandong Engineering Research Centre for Environment-friendly Agricultural Pest Management College of Plant Health andMedicineQingdao Agricultural UniversityQingdao 266109China Harry Butler Institute Murdoch UniversityMurdochWA 6150Australia School of Information Technology Murdoch UniversityPerthWA 6150Australia Hebei Dahaituo National Nature Reserve Management Centre Chicheng 075500China

Potato cyst nematodes(PCNs)are a significant threat to potato production,having caused substantial damage in many *** the future distribution of PCN species is crucial to implementing effective biosecurity strategies,especially given the impact of climate change on pest species invasion and *** learning(ML),specifically ensemble models,has emerged as a powerful tool in predicting species distributions due to its ability to learn and make predictions based on complex data ***,this research utilised advanced machine learning techniques to predict the distribution of PCN species under climate change conditions,providing the initial element for invasion risk *** first used Global Climate Models to generate homogeneous climate predictors to mitigate the variation among ***,five machine learning models were employed to build two groups of ensembles,single-algorithm ensembles(ESA)and multi-algorithm ensembles(EMA),and compared their *** this research,the EMA did not always perform better than the ESA,and the ESA of Artificial Neural Network gave the highest performance while being *** results indicated that the distribution range of PCNs would shift northward with a decrease in tropical zones and an increase in northern ***,the total area of suitable regions will not change significantly,occupying 16-20%of the total land surface(18%under current conditions).This research alerts policymakers and practitioners to the risk of PCNs’incursion into new ***,this ML process offers the capability to track changes in the distribution of various species and provides scientifically grounded evidence for formulating long-term biosecurity plans for their control.

关键词： invasive species distribution future climates homogeneous climate predictors single-algorithm ensembles multi-algorithm ensembles artificial neural network

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New strategy for boosting cathodic performance of low temperature solid oxide fuel cells via chlorine doping

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Nano Research 2024年第9期17卷 8086-8094页

作者： ShaoHua Xu Hao Qiu Shanshan Jiang Jingjing Jiang Wei wang Xiaomin Xu Wei Kong Tanaka Dennis Chivurugwi Arkadii Proskurin Daifen Chen Chao Su School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212100China Institute of Analysis and Testing Beijing Academy of Science and TechnologyBeijing 100089China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China wa School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWA6102Australia Admiral Makarov National University of Shipbuilding Heroiv Ukrainy av.9Mykolaiv54025Ukraine

To enhance the performance and widespread use of solid oxide fuel cells(SOFCs),addressing the low-temperature(<650℃)electrochemical performance and operational stability issues of cathode materials is ***,we propose an innovative approach to enhance oxygen ion mobility and electrochemical performance of perovskite oxide by substituting some oxygen sites with chlorine *** designed SrTa_(0.1)Fe_(0.9)O_(3-δ-x)Clx(x=0.05 and 0.10)exhibits improved performance compared to SrTa_(0.1)Fe_(0.9)O_(3-δ)(STF).SrTa_(0.1)Fe_(0.9)O_(2.95-δ)Cl_(0.05)(STFCl0.05)shows the lowest area-specific resistance(ASR)value on Sm0.2Ce0.8O1.9(SDC)*** 600℃,STFCl0.05 achieves an ASR value of 0.084Ω·cm^(2),and a single cell with STFCl0.05 reaches a higher peak power density(PPD)value(1143 mW·cm^(-2))than that with STF(672 mW·cm^(-2)).Additionally,besides exhibiting excellent oxygen reduction reaction(ORR)activity at lower temperatures,the STFCl0.05 cathode demonstrates good CO_(2)tolerance and operational *** cell operation lasts for 150 h,and single cell operation endures for 720 h without significant performance *** chlorine doping approach effectively enhances ORR activity and stability,making STFCl0.05 a promising cathode material for low-temperature SOFCs.

关键词： low-temperature solid oxide fuel cells(LT-SOFCs) oxygen reduction reaction(ORR) CO_(2)tolerance chlorine doping

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A randomized controlled trial of Promoting Physical Activity in Regional and Remote Cancer Survivors(PPARCS)

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Journal of Sport and Health Science 2024年第1期13卷 81-89页

作者： Sarah J.Hardcastle Chloe Maxwell-Smith Vinicius Cavalheri Terry Boyle Marta Leyton Román Cameron Platell Michael Levitt Christobel Saunders Frank Sardelic Sophie Nightingale Jacob McCormick Craig Lynch Paul A.Cohen Max Bulsara Dana Hince Sport and Physical Activity Research Centre Sheffield Hallam UniversitySheffieldS102BPUK Institute for Health Research The University of Notre DameFremantleWA 6959Australia Curtin School of Population Health Curtin UniversityPerthWA 6845Australia Curtin School of Allied Health Curtin UniversityPerthWA 6845Australia Allied Health South Metropolitan Health ServiceMurdochWA 6150Australia Australian Centre for Precision Health University of South AustraliaAdelaideSA 5001Australia Department of Didactics of Musical Plastic and Body ExpressionUniversity of ExtremaduraCaceres 10071Spain St.John of God Subiaco Hospital PerthWA 6008Australia Department of Surgery University of MelbourneMelbourneVIC 3010Australia Tamara Private Hospital TamworthNSW 2340Australia Peter MacCallum Cancer Centre MelbourneVIC 3000Australia college of Health and Medicine Australian National UniversityCanberraACT 2600Australia Division of Obstetrics and Gynaecology Medical SchoolUniversity of Western AustraliaPerthWA 6009Australia

Background:Physical activity(PA)is important for cancer *** of remotely delivered interventions are needed to assist in reaching under-served non-metropolitan cancer *** objective of this study was to ascertain whether wearable technology,coupled with health coaching was effective in increasing PA in breast and colorectal cancer survivors living in regional and remote areas in ***:Cancer survivors from 5 states were randomized to intervention and control *** participants were given a Fitbit Charge 2TMand received up to 6 telephone health coaching *** participants received PA print *** assessments at baseline and 12 weeks measured moderate-to-vigorous PA(MVPA),light PA,and sedentary ***:Eighty-seven participants were recruited(age=63±11 years;74(85%)female).There was a significant net improvement in MVPA of 49.8 min/week,favoring the intervention group(95%confidence interval(95%CI):13.6-86.1,p=0.007).There was also a net increase in MVPA bouts of 39.5 min/week(95%CI:11.9-67.1,p=0.005),favoring the intervention *** groups improved light PA and sedentary behavior,but there were no between-group ***:This’s the first study to demonstrate that,when compared to standard practice(i.e.,PA education),a wearable technology intervention coupled with distance-based health coaching,improves MVPA in non-metropolitan cancer *** results display promise for the use of scalable interventions using smart wearable technology in conjunction with phone-based health coaching to foster increased PA in geographically disadvantaged cancer survivors.

关键词： Behavior change Exercise Health disparities Oncology Wearable technology

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Effects of biofertilizer and water-saving irrigation interactions on the leaf photosynthesis and plant growth of tomatoes

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International Journal of Agricultural and Biological Engineering 2024年第2期17卷 177-185页

作者： Danyan Chen Yuchun Ai Peizhe Li Yue Dong Hailing Li Changyi wang Xiaorui Jiang Shilong Li Yan Shen Aijun Dai Yuanyuan Feng college of Horticulture Jinling Institute of TechnologyNanjing 210038China Co-Innovation Center for Sustainable Forestry in Southern China College of Forestry and GrasslandCollege of Soil and Water ConservationNanjing Forestry UniversityNanjing 210037China Institute of Agricultural Resources and Environment Jiangsu Academy of Agricultural SciencesNanjing 210014China Agriculture Exchange and Cooperation Center of Shandong Province Jinan 250100China Murdoch Applied Innovation Nanotechnology Research Group College of ScienceHealthEngineering and EducationMurdoch UniversityPerthWA 5150Australia

Irrigation and fertilizer interaction is an efficient cultivation management strategy for facility ***,the effects of irrigation and fertilizer management on tomato growth and its physiological factors remain *** this study,two irrigation patterns(W1,conventional irrigation;W2,water-saving irrigation)and four fertilizer application patterns(CF,chemical fertilizer;BOF,biological organic fertilizer;NPK,nutrient compound fertilizer;BOF+NPK)were selected to observe the effects of their interaction on cherry tomato plant growth,leaf photosynthesis and fruit quality through pot *** results showed that W2 treatments promoted plant height growth compared to W1 under the same fertilizer ***,irrigation and fertilizer management had significant effects on net photosynthetic rate,intercellular oxidation concentration,stomatal conductance and transpiration rate at the first sequence flowering and fruiting *** maximum tomato plant height(99.0 cm)was achieved under the irrigation and fertilizer pattern of BOF and W2,along with the highest fruit yield of 1.98 kg/plant,which was approximately 31.1%higher than the minimum yield under the combined CF and W2 *** W2 treatments,the application of either NPK or BOF increased the soluble sugar content of *** structural equation models showed that the soil alkali hydrolyzed nitrogen could directly significantly affect the yield and soluble *** findings suggest that optimization of irrigation-fertilizer interactions positively regulates tomato growth,providing an efficient model for tomato irrigation and fertilizer management and a reference for sustainable development of facility agriculture.

关键词： irrigation-fertilization interaction cherry tomato plant height leaf photosynthesis fruit yield and quality

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Pyridine-regulated Sb@InSbS_(3)ultrafine nanoplates as high-capacity and long-cycle anodes for sodium-ion batteries

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Rare Metals 2024年第5期43卷 2080-2092页

作者： Jia-ying Ren Xiang-Lin Yu Chang-Miao Chen Xin-Yu Hu Ting Yang Ming Zhang college of Materials Science and Engineering and college of Science Central South University of Forestry and TechnologyChangsha 410004China college of Semiconductors(college of Integrated Circuits) Changsha Semiconductor Technology and Application Innovation Research InstituteHunan UniversityChangsha 410082China

Sb-based materials exhibit considerable potential for sodium-ion storage owing to their high theoretica ***,the bulk properties of Sb-based materials always result in poor cycling and rate *** overcome these issues,pyridine-regulated Sb@InSbS_(3)ultrafine nanoplates loaded on reduced graphene oxides(Sb@InSbS_(3)@rGO)were designed and *** the synthesis process,pyridine was initially adopted to coordinate with In^(3+),and uniformly dispersed In_(2)S_(3)ultrafine nanoplates on reduced graphene oxide were generated after ***,partial In^(3+)was exchanged with Sb^(3+),and Sb@InSbS_(3)@rGO was obtained by using the subsequent annealing *** unique structure of Sb@InSbS_(3)@rGO effectively shortened the transfer path of sodium ions and electrons and provided a high *** the anode in sodium-ion batteries,the Sb@InSbS_(3)@rGO electrode demonstrated a significantly higher reversible capacity better stability(445 m Ah·g^(-1)at 0.1 A·g^(-1)after 200 cycles and 212 mAh·g^(-1)at 2 A·g^(-1)after 1200 cycles),and superior rate(210 mAh·g^(-1)at 6.4 A·g^(-1))than the electrode without pyridine(355 mAh·g-1at 0.1 A·g-1after 55 cycles and 109 mAh·g^(-1)at 2 A·g^(-1)after 770 cycles)Furthermore,full cells were assembled by using the Sb@InSbS_(3)@rGO as anode and Na_(3)V_(2)(PO_(4))_(3)as cathode which demonstrated good cycling and rate performances and exhibited promising application *** results indicate that adjusting the microstructure of electrode materials through coordination balance is A·good strategy for obtaining high-capacity,high-rate,and longcycle sodium storage performances.

关键词： Sodium-ion battery Sb-based anode material Pyridine coordination Reduced size nanostructure Half/full cell

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