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Towards seamless environmental prediction-development of Pan-Eurasian EXperiment(PEEX)modelling platform

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Big Earth Data 2024年第2期8卷 189-230页

作者： Alexander Mahura Alexander Baklanov Risto Makkonen michael boy Tuukka Petäjä Hanna KLappalainen Roman Nuterman Veli-Matti Kerminen Stephen R.Arnold Markus Jochum Anatoly Shvidenko Igor Esau Mikhail Sofiev Andreas Stohl Tuula Aalto Jianhui Bai Chuchu Chen Yafang Cheng Oxana Drofa Mei Huang Leena Järvi Harri Kokkola Rostislav Kouznetsov Tingting Li Piero Malguzzi Sarah Monks Mads Bruun Poulsen Steffen M.Noe Yuliia Palamarchuk Benjamin Foreback Petri Clusiu Till Andreas Soya rasmussen Jun She Jens Havskov Sørensen Dominick Spracklen Hang Su Juha Tonttila Siwen Wang Jiandong Wang Tobias Wolf-Grosse Yongqiang Yu Qing Zhang Wei Zhang Wen Zhang Xunhua Zheng Siqi Li Yong Li Putian Zhou Markku Kulmala Faculty of Science Institute for Atmospheric and Earth System Research(INAR)/PhysicsUniversity of Helsinki(UHEL)HelsinkiFinland Science and Innovation Department World Meteorological Organization(WMO)GenevaSwitzerland Niels bohr Institute University of CopenhagenCopenhagenDenmark Climate System Research Finnish Meteorological Institute(CSR-FMI)HelsinkiFinland School of Engineering Sciences Lappeenranta University of TechnologyLappeenrantaFinland Institute for Climate and Atmospheric Science School of Earth and EnvironmentUniversity of LeedsLeedsUK Biodiversity and Natural Resources Program International Institute for Applied Systems Analysis(IIASA)LaxenburgAustria Department of Physics and Technology UiT-The Arctic University of NorwayTromsoNorway Nansen Environmental and Remote Sensing Center(NERSC) BergenNorway Atmospheric Composition Finnish Meteorological Institute(AC-FMI)HelsinkiFinland Norwegian Institute for Air Research(NILU) KjellerNorway LAGEO Institute of Atmospheric PhysicsChinese Academy of Sciences(IAP-CAS)BeijingChina Max Planck Institute for Chemistry(MPI-Chem) MainzGermany Institute of Atmospheric Sciences and Climate National Research Council of Italy(CNR-15SAC)BolognaItaly Institute of Geographic Sciences and Natural Resources Research(IGSNRR) Chinese Academy of Sciences(CAS)BeijingChina Faculty of Science Helsinki Institute of Sustainability Science(HELSUS)University of Helsinki(UHEL)HelsinkiFinland Atmospheric Research Centre of Eastern Finland Finnish Meteorological Institute(ARCEF-FMI)KuopioFinland Institute of Atmospheric Physics Chinese Academy of Sciences(IAP-CAS)BeijingChina Department of Plant Physiology Estonian University of Life Sciences(EULS)Institute of Agricultural and Environmental Sciences(IAES)TartuEstonia Danish Meteorological Institute(DMI) CopenhagenDenmark State Key Laboratory of Atmospheric boundary Layer Physics and Atmospheric Chemistry LAPC) Institute of Atmospheric Physics(IAP)Chinese Academy of Sciences(CAS)BeijingChina Uni

The Pan-Eurasian Experiment Modelling Platform(PEEX-MP)is one of the key blocks of the PEEX Research *** PEEX MP has more than 30 models and is directed towards seamless envir-onmental *** main focus area is the Arctic-boreal regions and *** models used in PEEX-MP cover several main components of the Earth’s system,such as the atmosphere,hydrosphere,pedosphere and biosphere,and resolve the physicalchemicalbiological processes at different spatial and temporal scales and *** paper introduces and discusses PEEX MP multi-scale modelling concept for the Earth system,online integrated,forward/inverse,and socioeconomical modelling,and other approaches with a particular focus on applications in the PEEX geographical *** employed high-performance com-puting facilities,capabilities,and PEEX dataflow for modelling results are *** virtual research platforms(PEEXView,Virtual Research Environment,Web-based Atlas)for handling PEEX modelling and observational results are *** over-all approach allows us to understand better physical-chemicalbiological processes,Earth’s system interactions and feedbacks and to provide valuable information for assessment studies on evaluating risks,impact,consequences,*** population,envir-onment and climate in the PEEX *** work was also one of the last projects of *** Zilitinkevich,who passed away on 15 February *** the finalization took time,the paper was actually submitted in 2023 and we could not argue that the final paper text was agreed with him.

关键词： Multi-scale and-processes modelling concept seamless coupling high-performance computing data infrastructure virtual research platforms

Synergistic effect of cobalt and niobium in Co_(3)-Nb-O_(x)on performance of selective catalytic reduction of NO with NH_(3)

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Rare Metals 2022年第1期41卷 166-178页

作者： bo-Lin Zhang Li-Feng Deng bo Liu Chun-Yun Luo michael Liebau Shen-Gen Zhang Roger Glaser Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Shunde Graduate School University of Science and Technology BeijingFoshan 528399China Jiangsu Longkingcotech Co. Ltd.Yancheng 224000China Institute of Chemical Technology Universita¨t LeipzigLeipzig 04103Germany e-mail:roger.glaeser

Combining the redox properties of Co and the acid properties of Nb in a Co_(3)-Nb-O_(x)catalyst is shown to provide superior performance in the selective catalytic reduction of NO with NH_(3)(NH_(3)-SCR).Co_(3)O_(4)shows average activity,however,it exhibits a poor N_(2)***_(2)O_(5)is not active for NH_(3)-***,the mixed Co_(3)-Nb-O_(x) catalyst shows higher NO conversion and N_(2)selectivity than the single Co_(3)O_(4)and Nb_(2)O_(5)catalysts at 100–300℃.The results of temperature programmed reduction by H_(2)and X-ray photoelectron(XP)spectra indicate that the addition of Nb changes the chemical states of Co and decreases the concentration of Co^(3+) and Oa,adjusting the activity for catalytic oxidation to a moderate *** suppresses the formation of undesired N_(2)O from the over-oxidation of NH_(3).Incorporation of Co and Nb into one solid synergistically couples their redox behavior and surface acidity,ensuring the high catalytic activity and N2 selectivity in NH3-SCR.

关键词： Co-Nb Selective catalytic reduction Lowtemperature Acid property Redox behavior

Low risk of postoperative ulnar nerve affection in surgically treated distal humeral fractures when the nerve is released in situ

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World Journal of Orthopedics 2023年第7期14卷 526-532页

作者： Mustafa Al-Gburi Ali Al-Hamdani Jeppe Vejlgaard rasmussen bo Sanderhoff Olsen Section for Shoulder and Elbow Surgery Department of Orthopaedic SurgeryHerlev and Gentofte University HospitalHellerup 2900GentofteDenmark

BACKGROUND Adult distal humeral fractures(DHF)comprise 2%-5%of all fractures and 30%of all elbow *** of DHF may be technically demanding due to fracture complexity and proximity of neurovascular *** reduction and internal fixation(ORIF)are often the treatment of choice,but arthroplasty is considered in case of severe comminution or in elderly patients with poor bone *** nerve affection following surgical treatment of distal humerus fractures is a well-recognized *** To report the risk of ulnar nerve affection after surgery for acute *** We retrospectively identified 239 consecutive adult patients with acute DHFs who underwent surgery with ORIF,elbow hemiarthroplasty(EHA)or total elbow arthroplasty(TEA)between January 2011 and December *** all cases,the ulnar nerve was released in situ without anterior *** used our institutional database to review patients’medical records for demographics,fracture morphology,type of surgery and ulnar nerve affection immediately;records were reviewed after surgery and at 2 wk and 12 wk of routine clinical outpatient ***-nine percent patients were excluded due to pre-or postoperative *** follow-up examination was a telephone interview in which ulnar nerve affection was reported according to the McGowen Classification Score.A total of 210 patients were eligible for interview,but 13 patients declined participation and 17 patients failed to ***,180 patients were *** Mean age at surgery was 64 years(range 18-88 years);121(67.3%)patients were women;59(32.7%)were *** to the AO/OTA classification system,we recorded 47 patients with type A3,55 patients with type B and 78 patients with type C *** to the McGowen Classification Score,mild ulnar nerve affection was reported in nine patients;severe affection,in two.A total of 69 patients were treated with ORIF of whom three had mild temporary ulnar n

关键词： Humeral fracture Arthroplasties Internal fixation Ulnar nerve affection In situ release

Synergistic effects of vegetation layers of maize and potato intercropping on soil erosion on sloping land in Yunnan Province, China

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Journal of Mountain Science 2020年第2期17卷 423-434页

作者： ZHANG Xiao-yun WU Kai-xian FULLEN michael A WU bo-zhi Faculty of Agronomy and Biotechnology Yunnan Agricultural UniversityKunming 650201China Faculty of Technology and Engineering The University of WolverhamptonWulfruna StreetWolverhamptonWV11LYUK

Intercropping, as an overyielding system, can decrease soil erosion on sloping land through the presence of dense canopy covers. However, the structure mechanism in canopy is still unclear. We conducted a two-year field experiment on runoff plots, exploring whether the interaction between vegetation layers reduce soil erosion in maize and potato intercropping systems. The maize, potato, and weed layers in the intercropping system were removed by a single layer, two layers and three layers, respectively(total of 8 treatments including all layers removed as the control). Then, throughfall, runoff and sediment were measured at the plot and row scale on a weekly basis. Based on the difference between each treatment and the control, we calculated and found a relative reduction of runoff and sediment by any combination of the two vegetation layers greater than the sum of each single layer. In 2016 and 2017, the highest relative reduction of runoff reached 15.65% and 46.73%, respectively. Sediment loss decreased by 33.96% and 42.77%, respectively. Moreover, runoffand sediment reduced by the combination of all vegetation layers(no layers removed) was also larger than the sum of that by each single layer. In 2016 and 2017, the highest relative reduction of runoff reached 7.32% and 3.48%, respectively. So, there were synergistic effects among multi-level(two or three layers) vegetation layers in terms of decreasing soil erosion on sloping land. Maize redistributes more throughfall at the maize intra-specific row and the maize and potato inter-specific, which is favorable for the synergistic effect of reducing soil erosion. This finding shows an important mechanism of maize and potato intercropping for soil and water conservation, and may promote the application of diverse cropping systems for sustainable agriculture in mountainous areas.

关键词： Synergistic effect Vegetation layer Soil erosion Intercropping Maize Potato

Effects of insect infestation on rodent-mediated dispersal of Quercus aliena:results from field and enclosure experiments

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Integrative Zoology 2019年第1期14卷 104-113页

作者： bo ZHANG Xiaoning CHEN michael A.STEELE Jingang LI Gang CHANG College of Life Sciences Shaanxi Normal UniversityXi’anChina Shaanxi Institute of Zoology Xi’anChina and Department of Biology Wilkes UniversityWilkes-BarrePennsylvaniaUSA

Rodents influence plant establishment and regeneration by functioning as both seed predators and ***,these rodent-plant interactions can vary significantly due to various environmental conditions and the activity of other insect seed ***,we use a combination of both field and enclosure(*** cage and semi-natural enclosure)experiments,to determine whether rodents can distinguish sound seeds from those infested with *** also demonstrate how such responses to insects are influenced by food abun-dance and other environmental *** presented rodents with 2 kinds of Quercus aliena seeds(sound and insect-infested seeds)in a subtropical forest in the Qinling Mountains,central China,from September to No-vember of 2011 to *** results showed that rodents preferred to hoard and eat sound seeds than infested seeds in the field and semi-natural enclosure,while they preferred to eat infested seeds over sound seeds in the individual *** addition,both hoarding and eating decisions were influenced by food *** hoarded more sound seeds in years of high food abundance while they consumed more acorns in years of food *** with field results,rodents reduced scatter-hoarding behavior in semi-natural enclosures and ate more insect-infested seeds in smaller individual *** results further confirm that rodents distinguish infested seeds from non-infested seeds but demonstrate that this behavior varies with conditions(***-ment and food abundance).We suggest that such interactions will influence the dispersal and natural regenera-tion of seeds as well as predation rates on insect larvae.

关键词： food abundance infested seeds larder hoarding scatter hoarding seed dispersal semi-natural enclosure

Vedolizumab use in patients with inflammatory bowel diseases undergoing surgery:clinical trials and post-marketing experience

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Gastroenterology Report 2019年第5期7卷 322-330,I0001页

作者： bo Shen Aimee Blake Karen Lasch michael Smyth Fatima Bhayat Center for Inflammatory bowel Disease Digestive Disease and Surgery InstituteCleveland ClinicClevelandOHUSA Global Patient Safety Evaluation Takeda Pharmaceuticals International Co.CambridgeMAUSA US Medical Office Takeda Pharmaceuticals USA Inc.DeerfieldILUSA Global Medical Affairs Takeda Development Centre Europe LtdLondonUK Kyowa Kirin International plc ChertseyUK

Background:Patients with inflammatory bowel diseases frequently require surgery,but immunotherapies used in disease management may increase the risk of post-operative *** investigated frequencies of post-operative complications in patients who received vedolizumab—a gut-selective antibody approved for the treatment of moderately to severely active ulcerative colitis and Crohn’s disease—in clinical-trial and post-marketing ***:This post hoc analysis of safety data from GEMINI 1,GEMINI 2,and long-term safety studies included patients who had had colectomy or bowel surgery/*** from the post-marketing Vedolizumab Global Safety Database were also analysed(data cutoff point:19 May 2016).Adverse events relating to post-operative complications were identified using Medical Dictionary for Regulatory Activities preferred ***:Of 58 total surgeries in patients included in GEMINI 1 and GEMINI 2,post-operative complications were reported for 3/51 vedolizumab-treated patients(5.9%)and 1/7 placebo-treated patients(14.3%).In the long-term safety study,157/2,243 patients(7%)had colectomy or bowel surgery/resection;of these 157 patients who underwent surgery,11(7%)experienced a post-operative *** time between last pre-operative vedolizumab dose and surgery was 23 days in GEMINI 1,20 days in GEMINI 2,and 39–40 days in the long-termsafety *** the post-marketing setting,based on data covering approximately 46,978 patient-years of vedolizumab exposure,post-operative complications were reported in 19 ***:In clinical trials,complications of colectomy and bowel surgery/resection appeared infrequent,with minimal difference between vedolizumab and *** frequency of post-operative complications in the post-marketing setting appears low.

关键词： inflammatory bowel disease colorectal surgery vedolizumab

Vegetation dynamics in response to human and climatic factors in the Tanzanian Coast

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Frontiers of Earth Science 2021年第3期15卷 595-605页

作者： Herrieth MACHIWA bo TIAN Dhritiraj SENGUPTA Qian CHEN michael MEADOWS Yunxuan ZHOU State Key Laboratory of Estuarine and Coastal Research East China Normal UniversityShanghai 200241China University of Dar es Salaam College of Information and Communication TechnologiesDepartment of Computer Science and EngineeringDar es Salaam 33335Tanzania Key Laboratory of Geographic Information Science(Ministry of Education) School of Geographical SciencesEast China Normal UniversityShanghai 200241China Department of Environmental&Geographical Sciences University of Cape TownRondebosch 7701South Africa College of Geography and Environmental Sciences Zhejiang Normal UniversityJinhua 321004China

This study of vegetation dynamics in the coastal region of Tanzania provides a fundamental basis to better understand the nature of the factors that underlie observed *** Tanzanian coast,rich in biodiversity,is economically and environmentally important although the understanding of the nature and causes of vegetation change is very *** paper presents an investigation of the relationship between vegetation dynamics in response to climate variations and human activities using Moderate Resolution Imaging Spectro-radiometer(MODIS),Normalized Difference Vegetation Index(NDVI),meteorological,and Globeland30 Landsat data ***-temporal trends and the relationship of NDVI to selected meteorological variables were statistically analyzed for the period 2000-2018 using the Mann-Kendall test and Pearson correlation *** results reveal a significant positive trend in temperature(/?>0,Z=2.87)and a non-significant trend in precipitation(|Z|<1.96).A positive relationship between NDVI and precipitation is *** Tanzania has therefore experienced increased temperatures and variable moisture conditions which threaten natural vegetation and ecosystems at *** land cover maps obtained from GlobeLand30 were analyzed to identify the nature and scale of human impact on the *** analysis of land use and land cover in the region reveals an increase in cultivated land,shrubland,grassland,built-up land and bare land,while forests,wetland and water all decreased between 2000 and *** decrease in forest vegetation is attributable to the fact that most livelihoods in the region are dependent on agriculture and harvesting of forest products(firewood,timber,charcoal).The findings of this study highlight the need for appropriate land-use planning and sustainable utilization of forest resources.

关键词： remote sensing NDVI climate variations spatio-temporal changes LULCC coastal Tanzania

Promotion effect of niobium on ceria catalyst for selective catalytic reduction of NO with NH3

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Journal of Rare Earths 2022年第10期40卷 1535-1545页

作者： bolin Zhang Lifeng Deng michael Liebau Yingjie Ren Chunyun Luo bo Liu Shengen Zhang Roger Glaser Institute for Advanced Materials and Technology University of Science and Technology BeijingBejing 100083China Shunde Graduate School University of Science and Technology BeijingFoshan 528399China Jiangsu Longkingcotech Co. Ltd.Yancheng224000China Institute of Chemical Technology Universit at LeipzigLeipzig04103Germany

The CeO_(2),Ce-Nb-O_(x) and Nb_(2)O_(5) catalysts were synthesized by citric acid method and the promotion effect of Nb on ceria for selective catalytic reduction(SCR)of NO with NH_(3) was *** catalytic activity measurements indicate that the mixed oxide Ce-Nb-O_(x) presents a higher SCR activity than the single oxide CeO_(2) or Nb_(2)O_(5) *** addition,the Ce-Nb-O_(x) catalyst shows high resistance towards H_(2)O and SO_(2) at 280℃.The Raman,X-ray photoelectron spectra and temperature programmed reduction with H_(2) results indicate that the incorporation of Nb provides abundant oxygen vacancies for capturing more surface adsorbed oxygen,which provides a superior redox capability and accelerates the renewal of active ***,the Fourier transform infrared spectra and temperature programmed desorption of NH_(3) results suggest that niobium pentoxide shows high surface acidity,which is partly retained in the Ce-Nb-O_(x) catalyst possessing a high content of Lewis and Br?nsted acid ***,the incorporation of Nb improves both the redox and acidic capacities of Ce-Nb-O_(x) catalyst for the SCR ***,the redox behavior is primarily taken on Ce and the acidity is well improved by Nb,so the synergistic effect should exist between Ce and *** terms of the reaction mechanism,in situ DRIFT experiments suggest that both NH_(3) on Lewis acid sites and NH_(4)^(+) on Bronsted acid sites can react with NO species,and adsorbed NO and NO_(2) species can both be reduced by NH_(3).In the SCR process,O_(2) primarily acts as the accelerant to improve the redox and acid cycles and plays an important *** work proves that the combination of redox and acidic properties of different constituents can be feasible for catalyst design to obtain a superior SCR performance.

关键词： Cerium-niobium Selective catalytic reduction Redox behavior Acid cycle Synergistic effect Rare earths

Microstructural development of vanadium-nickel crystalline alloy membranes

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Rare Metals 2021年第7期40卷 1932-1939页

作者： Peng Jiang Xiao-Bin Shi bo-Lin Sun Hai-Chuan Wang michael Doland Guang-Sheng Song School of Materials Science and Engineering Anhui University of TechnologyMaanshan 243002China School of Mechanical Engineering Changzhou UniversityChangzhou 213164China School of Metallurgical Engineering Anhui University of TechnologyMaanshan 243002China CSIRO Energy.Queensland Centre for Advanced TechnologiesPullenvale 4069Australia

V85Ni15(at%)alloy was proposed as a promising candidate for hydrogen separation *** date,investigations of V85Ni15 alloy have concentrated on hydrogen permeation characteristics,and little work has been done on the microstructural *** the present study,various fabrication and heat-treatment techniques were used to develop different microstructures which would then be tailored to achieve a desired candidate for acceptable mechanical stability while maintaining high hydrogen *** arc-melted(AM)V85Ni15 alloy are supersaturated solid solution with dendritic segregation of Ni-solute *** rolling(CR)followed by annealing at 1050℃and 850℃can produce a two-phase(V+σ)microstructure and a three-phase(V+σ+NiV3)microstructure,*** fine two-phase microstructure obtained at 1050℃involves a simultaneous reaction of second-phase precipitation and V-matrix *** phase is formed via primary precipitation,while NiV3 phase is formed by peritectoidal *** AMCR samples were homogenized at1250℃for 2 h and sequential heat-treated at 850℃or900℃for 2 h,precipitation-strengthening microstructure is obtained:large grain structure of V-matrix with uniform distribution of second-phase particles produced by recrystallization and grain growth followed by precipitation process.

关键词： Microstructure characterization Alloy membrane V-Ni alloy Deformation Recrystallization Solid transformation