检索结果-南通市图书馆

World journal of Gastroenterology 2006年第22期12卷 3461-3465页

作者： Scott Grier adrian KP Lim Nayna Patel jeremy FL Cobbold Howard C Thomas Isobel j Cox Simon D Taylor-Robinson Liver Unit St Mary's Hospital Campus Faculty of MedicineImperial College LondonLondonUnited Kingdom Department of Imaging Sciences Hammersmith Hospital Campus Faculty of MedicineImperial College LondonLondonUnited Kingdom

Patients who are chronically infected with the hepatitis C virus often develop chronic liver disease and assessment of the severity of liver injury is required prior to considering viral eradication therapy. This article examines the various assessment methods currently available from gold standard liver biopsy to serological markers and imaging. Ultrasound is one of the most widely used imaging modalities in clinical practice and is already a first-line diagnostic tool for liver disease. Microbubble ultrasound contrast agents allow higher resolution images to be obtained and functional assessments of microvascular change to be carried out. The role of these agents in quantifying the state of hepatic injury is discussed as a viable method of determining the stage and grade of liver disease in patients with hepatitis C. Although currently confined to specialist centres, the availability of microbubble contrast-enhanced ultrasound will inevitably increase in the clinical setting.

关键词： Hepatitis C Microbubble contrast agents Ultrasound

Step it up: Advancing physical activity research to promote healthy aging in China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

journal of Sport and Health Science 2016年第3期5卷 255-257,382页

作者： Ding Ding Hua Fu adrian E.Bauman Prevention Research Collaboration Sydney School of Public Health The University of Sydney Centre for Chronic Disease Prevention College of Public Health Medical and Veterinary Sciences James Cook University School of Public Health Fudan University

*** China has been *** the late 1970s,China’s economy has increased many fold,the proportion of Chinese living in urban areas has more than doubled,life expectancy has increased by 10 years^1 and the country has transitioned from the'bicycle kingdom'to the world’s largest'auto market'.~2 As a result,China is now challenged by the'side effects'of eco-

关键词： doubled proportion lifestyle expenditure programs pragmatic innovative faster encourage accumulating

Frontier of digitalization in Biomass-to-X supply chain:opportunity or threats?

在线全文

学校读者我要写书评

暂无评论

journal of Bioresources and Bioproducts 2023年第2期8卷 101-107页

作者： adrian Chun Minh Loy Karen Gah Hie Kong juin Yau Lim Bing Shen How Department of Chemical and Biological Engineering Monash UniversityMelbourneAustralia Biomass Waste-to-Wealth Special Interest Group Research Centre for Sustainable TechnologiesFaculty of EngineeringComputing and ScienceSwinburne University of TechnologyKuching 93350Malaysia Integrated Engineering Department of Environmental Science and EngineeringCollege of EngineeringKyung Hee UniversityGyeonggi-do 17104Republic of Korea

The escalating climate crisis necessitates an urgent shift towards a sustainable business ***-der the context of bioeconomy,it has offered a promising alternative through its“Biomass-to-X”strategy for converting biological resources into value-added products or ***,the adoption of this approach remains scarce,which highlights the need to leverage digital technolo-gies to enhance its ***,this paper provides a comprehensive overview of the potential role of digital technologies in the Biomass-to-X supply chain,encompassing the entire value chain from upstream to downstream activities,specifically in the areas of 1)lab-to-fabrication transla-tion,2)biomanufacturing stage,and lastly,3)supply chain management ***,this study identifies and discusses research gaps in each niche area,along with potential future re-search prospects to facilitate the transition towards a sustainable bioeconomy,making it a crucial reference for stakeholders involved in decision-making processes.

关键词： Biomass valorization Internet of nano-things Bioeconomy Biomanufacturing Blockchain Biomass-to-X

Photoelectrochemical evaluation of SILAR-deposited nanoporous BiVO4 photoanodes for solar-driven water splitting

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Materials Science 2020年第3期2卷 227-234页

作者： Siti Nur'ain Haji Yassin adrian Soong Leong Sim james Robert jennings Faculty of Science Universiti Brunei DarussalamJalan Tungku LinkBE 1410Brunei Darussalam

We report a photoelectrochemical investigation of BiVO4 photoanodes prepared by successive ionic layer adsorption and reaction(SILAR),a facile method that yields uniform nanoporous *** characterization of the phase,morphology,composition,and optical properties of the prepared films,the efficiencies of charge separation(ηsep)and water oxidation(ηox)in solar water splitting cells employing these photoanodes were estimated following a previously reported *** wavelength and illumination direction dependencies were discovered in the derived efficiencies,casting doubt on the validity of the *** alternative approach using a diffusion–reaction model that explicitly considers the efficiency of electron collection resolved the discrepancies and explained the illumination direction dependence of the *** diffusion lengths(Ln)of 0.45μm and 0.55μm were derived for pristine and cobalt phosphate(Co-Pi)modified BiVO4,respectively,which are much shorter than the film thickness of^2.1μ*** Co-Pi treatment also increasedηoxfrom 0.86 to^1,which is the main reason for the overall performance enhancement caused by adding *** findings suggest that there is little scope for improving the performance of SILAR-deposited BiVO4 photoanodes by further catalyzing water oxidation,but enhanced performance is achievable if electron transport can be improved.

关键词： Bismuth vanadate BiVO4 Solar water splitting Electron diffusion length Charge collection efficiency Water oxidation efficiency Charge separation efficiency

Karrikin and Cyanohydrin Smoke Signals Provide Clues to New Endogenous Plant Signaling Compounds

在线全文

学校读者我要写书评

暂无评论

Molecular Plant 2013年第1期6卷 29-37页

作者： Gavin R. Flematti Mark T. Waters adrian Scaffidi David j. Merritt Emilio L. Ghisalberti' Kingsley W.Dixon Steven M. Smith School of Chemistry and Biochemistry University of Western Australia Crawley 6009 Western Australia Australia Centre in Plant Energy Biology University of Western Australia Crawley 6009 Western Australia Australia School of Plant Biology University of Western Australia Crawley 6009 Western Australia Australia Kings Park and Botanic Garden Fraser Avenue West Perth 6005 Western Australia Australia

Two new types of signaling compounds have been discovered in wildfire smoke due to their ability to stimulate seed germination. The first discovered were karrikins, which share some structural similarity with the strigol- actone class of plant hormones, and both signal through a common F-box protein. However, karrikins and strigolactones operate through otherwise distinct signaling pathways, each distinguished by a specific a/13 hydrolase protein. Genetic analysis suggests that plants contain endogenous compounds that signal specifically through the karrikin pathway. The other active compounds discovered in smoke are cyanohydrins that release germination-stimulating cyanide upon hydrolysis. Cyanohydrins occur widely in plants and have a role in defense against other organisms, but an additional role in endogenous cyanide signaling should also now be considered.

关键词： fire smoke karrikins strigolactones cyanohydrins cyanide seed germination Arabidopsis thaliana.

Uncovering genetic and metabolite markers associated with resistance against anthracnose fruit rot in northern highbush blueberry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2023年第10期10卷 25-36页

作者： MacKenzie jacobs Samantha Thompson adrian E.Platts Melanie j.A.Body Alexys Kelsey Amanda Saad Patrick Abeli Scott j.Teresi Anthony Schilmiller Randolph Beaudry Mitchell j.Feldmann Steven j.Knapp Guo-qing Song Timothy Miles Patrick P.Edger Department of Biochemistry and Molecular Biology Michigan State UniversityEast LansingMI 48824USA Department of Horticulture Michigan State UniversityEast LansingMI 48824USA Molecular Plant Science Program Michigan State UniversityEast LansingMI 48824USA Department of Plant Soil and Microbial SciencesMichigan State UniversityEast LansingMI 48824USA Department of Horticulture and Natural Resources Kansas State UniversityOlatheKS 66061USA Genetics and Genome Sciences Program Michigan State UniversityEast LansingMI 48824USA Mass Spectrometry&Metabolomics Core Michigan State UniversityEast LansingMI 48824USA Department of Plant Sciences University of CaliforniaDavisCA 95616USA

Anthracnose fruit rot(AFR),caused by the fungal pathogen Colletotrichum fioriniae,is among the most destructive and widespread fruit disease of blueberry,impacting both yield and overall fruit *** cultivars have highly variable resistance against *** date,this pathogen is largely controlled by applying various fungicides;thus,a more cost-effective and environmentally conscious solution for AFR is *** we report three quantitative trait loci associated with AFR resistance in northern highbush blueberry(Vaccinium corymbosum).Candidate genes within these genomic regions are associated with the biosynthesis of flavonoids(***)and resistance against ***,we examined gene expression changes in fruits following inoculation with Colletotrichum in a resistant cultivar,which revealed an enrichment of significantly differentially expressed genes associated with certain specialized metabolic pathways(*** biosynthesis)and pathogen *** non-targeted metabolite profiling,we identified a flavonol glycoside with properties consistent with a quercetin rhamnoside as a compound exhibiting significant abundance differences among the most resistant and susceptible individuals from the genetic mapping *** analysis revealed that this compound exhibits significant abundance differences among the most resistant and susceptible individuals when analyzed as two ***,individuals within each group displayed considerable overlapping variation in this compound,suggesting that its abundance may only be partially associated with resistance against *** findings should serve as a powerful resource that will enable breeding programs to more easily develop new cultivars with superior resistance to AFR and as the basis of future research studies.

关键词： applying resistance specialized

Disseminating near-real-time hazards information and flood maps in the Philippines through Web-GIS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

journal of Environmental Sciences 2017年第9期29卷 13-23页

作者： Alfredo Mahar Francisco A.Lagmay Bernard Alan Racoma Ken adrian Aracan jenalyn Alconis-Ayco Ivan Lester Saddi National Institute of Geological Sciences University of the PhilippinesPhilippines

The Philippines being a locus of tropical cyclones, tsunamis, earthquakes and volcanic eruptions, is a hotbed of disasters. These natural hazards inflict loss of lives and costly damage to property. Situated in a region where climate and geophysical tempest is common, the Philippines will inevitably suffer from calamities similar to those experienced recently. With continued development and population growth in hazard prone areas, it is expected that damage to infrastructure and human losses would persist and even rise unless appropriate measures are immediately implemented by government. In 2012, the Philippines launched a responsive program for disaster prevention and mitigation called the Nationwide Operational Assessment of Hazards（Project NOAH）, specifically for government warning agencies to be able to provide a 6 hr lead-time warning to vulnerable communities against impending floods and to use advanced technology to enhance current geo-hazard vulnerability maps. To disseminate such critical information to as wide an audience as possible, a Web-GIS using mashups of freely available source codes and application program interface（APIs） was developed and can be found in the URLs http：//*** and http：//***/. This Web-GIS tool is now heavily used by local government units in the Philippines in their disaster prevention and mitigation efforts and can be replicated in countries that have a proactive approach to address the impacts of natural hazards but lack sufficient funds.

关键词： Web-GIS Project NOAH Disasters

Additive manufacturing of antibacterial PLA-ZnO nanocomposites:Benefits,limitations and open challenges

在线全文

学校读者我要写书评

暂无评论

journal of Materials Science & Technology 2022年第16期111卷 120-151页

作者： Wei juene Chong Shirley Shen Yuncang Li adrian Trinchi Dejana Pejak Ilias(Louis)Kyratzis Antonella Sola Cuie Wen School of Engineering RMIT UniversityMelbourneVictoria 3001Australia CSIRO Manufacturing Business Unit ClaytonVictoria 3169Australia

Polymeric biomaterials such as polylactic acid(PLA)play a prominent role in the advancement of biomedical additive manufacturing(AM).PLA offers indeed a very advantageous combination of thermomechanical properties and functional attributes,as it is biobased,biodegradable,biocompatible and easy to ***,PLA can be damaged by common sterilization methods and is sensitive to most chemical disinfectants,and this may impair its widespread *** of the most promising ways to overcome this shortcoming is to provide PLA with embedded antibacterial activity by the addition of appropriate fillers such as zinc oxide(Zn O)*** a detailed introduction to the basic properties of PLA and ZnO nanoparticles,the present review analyzes the main variables that govern the antibacterial activity of PLA-ZnO *** applications and related manufacturing processes are also presented to showcase the importance of having embedded antibacterial functions in demanding applications such as food packaging and wound *** is then placed on the emerging literature of the AM of PLA-ZnO nanocomposites,with a focus on fused filament fabrication(also known as fused deposition modeling).Existing gaps and hurdles related to the development and 3D printing of such composites is critically *** is envisioned that a deeper understanding of the processability,thermo-mechanical behavior,biocompatibility and antibacterial efficacy of additively manufactured PLAZnO nanocomposites will foster their adoption in the biomedical field and,ultimately,in all circumstances where it is crucial to limit infection transmission.

关键词： Additive manufacturing Antibacterial activity Fused filament fabrication Nanocomposite PLA ZnO Fused deposition modeling

Advanced wind turbine blade inspection with hyperspectral imaging and 3D convolutional neural networks for damage detection

在线全文

学校读者我要写书评

暂无评论

Energy and AI

Energy and AI 2024年第2期16卷 528-537页

作者： Patrick Rizk Frederic Rizk Sasan Sattarpanah Karganroudi adrian Ilinca Rafic Younes jihan Khoder Department of Mechanical Engineering Universitédu QuébecàTrois-RivièresDrummondvilleQCCanada Centre national intégrédu manufacturier intelligent(CNIMI) Universitédu QuébecàTrois-RivièresDrummondvilleQCCanada Department of Mathematics Computer Science and EngineeringUniversitédu QuébecàRimouski300 allée des UrsulinesRimouskiQCG5L3A1Canada The Center for Advanced Computer Studies University of Louisiana at LafayetteLafayetteLAUSA T3E Industrial Research Group Mechanical Engineering DepartmentÉcole de Technologie Supérieure1100 Notre-Dame St WMontréalQC H3C 1K3Canada Faculty of Engineering Third BranchLebanese UniversityHadathBeirutLebanon LISV Laboratory University of Versailles Saint-Quentin-en-Yvelines10-12 Avenue de l'Europe78140VélizyFrance

In the context of global efforts to mitigate climate change by pursuing sustainable energy sources, wind energy has emerged as a critical contributor. However, the wind energy industry faces substantial challenges in maintaining and preserving the integrity of wind turbine blades. Timely and accurate detection and classification of blade faults, encompassing issues such as cracks, erosion, and ice buildup, are imperative to uphold wind turbines' ongoing efficiency and safety. This study introduces an inventive approach that amalgamates hyperspectral imaging and 3D Convolutional Neural Networks (CNNs) to augment the precision and efficiency of wind turbine blade fault detection and classification. Hyperspectral imaging is harnessed to capture comprehensive spectral information from blade surfaces, facilitating exact fault identification. The process is streamlined through Incremental Principal Component Analysis (IPCA), reducing data dimensions while maintaining integrity. The 3D CNN model demonstrates remarkable performance, achieving high accuracy in detecting all fault categories in full-band hyperspectral images. The model retains high accuracy even with dimensionality reduction to 20 spectral bands. The reduced processing time of the 20-band image enhances the practicality of real-world applications, thereby reducing downtime and maintenance expenditures. This research represents a significant advancement in wind turbine blade inspection, contributing to the sustainability and dependability of wind energy systems and furthering the cause of a cleaner and more sustainable energy future as part of the broader fight against climate change.

关键词： blade thereby turbine

Weather influenced nestling growth of an insectivorous but not a granivorous grassland passerine in Argentina

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Avian Research 2024年第2期15卷 156-162页

作者： Martín Alejandro Colombo adrian jauregui Luciano N.Segura Laboratorio de Ecología de Aves.Institute“Dr.Raúl A.Ringuelet”(ILPLA)-UNLP/CONICET Boulevard 1201437La PlataB1900Buenos AiresArgentina

Nestling growth of birds can be affected by weather *** general,it is expected that higher temper-atures favor growth by improving food availability and nestling metabolism,while rain hinders it by reducing foraging ***,most of these patterns have been described in insectivorous cavity-nesting birds in temperate *** tested these predictions in two neotropical grassland ground-nesting birds with contrasting nestling diets and therefore potentially different responses to *** measured nestlings of the Hellmayr’s Pipit(Anthus hellmayri,an insectivorous passerine)and the Grassland Yellow-Finch(Sicalis luteola,which feeds its nestlings exclusively with seeds)during three breeding seasons(2017-2020)in central-eastern *** took measurements of tarsus and body mass,modeled growth curves using nonlinear mixed-effects models,and evaluated the effects of minimum daily temperature and precipitation during the growth period and the 30 days prior to *** pipits(60 nestlings from 21 nests),minimum temperatures during the growth period were positively associated with tarsus and body mass ***,there was a positive association between precipitation during the pre-hatching period and tarsus ***,none of the weather variables analyzed had significant effects on nestling growth of finches(131 nestlings from 35 nests).Dietary contrast between species may explain the different *** activity and abundance can be affected by weather variations within the span of a breeding season,whereas seeds may depend on conditions from previous years,making the effects harder to *** with reduced asymptotic size can have reduced chances of ***,pipit populations could be impacted if they experience cold and dry conditions during their breeding season,which is of major relevance in the current context of climate change.

关键词： Finches Grassland birds Neotropical birds Pipits Precipitation Temperature