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Chinese physics B 2015年第4期24卷 467-474页

作者： A.e.ershov A.p.Gavrilyuk S.V.Karpov p.N.semina L.V.Kirensky Institute of physics Russian Academy of Sciences Institute of Computational Modeling Russian Academy of Sciences Siberian State Aerospace University Siberian Federal University

Interactions of pulsed laser radiation with resonance domains of multiparticle colloidal aggregates having an increasingly complex local environment are studied via an optodynamic model. The model is applied to the simplest configurations, such as single particles, dimers, and trimers consisting of mono- and polydisperse Ag nanoparticles. We analyze how the local environment and the associated local feld enhancement by surrounding particles affect the optodynamic processes in domains, including their photomodification and optical properties.

关键词： nanoparticle surface plasmon colloid aggregate optodynarnics

An ethnobotanical study of medicinal plants in Güce district,north-eastern Turkey

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plant Diversity 2022年第6期44卷 577-597页

作者： Mustafa Karakose Giresun University Espiye Vocational SchoolProgramme of Medicinal and Aromatic PlantsEspiyeGiresun28600Turkey

This study aims to identify medicinal plants traditionally used to treat diseases by local people living in Güce district,north-eastern *** study was carried out between 2018 and 2021 using a two-part semi-structured,open-ended questionnaire with 165 local *** were analysed using use-report,frequency of citation,and informant consensus *** identified 128 vascular medicinal plant taxa belonging to 54 families and 106 *** most common plant taxa belong to Rosaceae(16 taxa/12.5%),Asteraceae(12 taxa/9.4%),and Lamiaceae(9 taxa/7%)*** most frequently used preparation method reported was decoction(39.8%);the most commonly utilized plant parts were leaves(40.3%).Statistical analysis reveals that women in Güce district(df?163,p?0.043possess the most traditional *** highest frequency of citation(61)and use report(92)were recorded for Tilia rubra ***,and the highest informant consensus factors were cited for respiratory system disorders(0.86),digestive system disorders(0.73),and skin disorders(0.71).This study reported nine plant taxa as medicinal plants for the first time,and documented a total of 293 new therapeutic ***,the study indicates that the transfer of traditional knowledge to future generations is limited(F?3.355,p?0.020).Action should be taken as soon as possible to preserve existing traditional knowledge and to ensure its transfer to future generations.

关键词： Colchic ethnobotany Informant consensus factor Frequency of citation Traditional medicine Use-record

sentiment Drift Detection and Analysis in Real Time Twitter Data Streams

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Computer Systems Science & engineering 2023年第6期45卷 3231-3246页

作者： e.Susi A.p.Shanthi Department of Computer Science&engineering Anna UniversityChennai600025Tamil NaduIndia

Handling sentiment drifts in real time twitter data streams are a challen-ging task while performing sentiment classifications,because of the changes that occur in the sentiments of twitter users,with respect to *** growing volume of tweets with sentiment drifts has led to the need for devising an adaptive approach to detect and handle this drift in real *** work proposes an adap-tive learning algorithm-based framework,Twitter sentiment Drift Analysis-Bidir-ectional encoder Representations from Transformers(TSDA-BeRT),which introduces a sentiment drift measure to detect drifts and a domain impact score to adaptively retrain the classification model with domain relevant data in real *** framework also works on static data by converting them to data streams using the Kafka *** experiments conducted on real time and simulated tweets of sports,health care andfinancial topics show that the proposed system is able to detect sentiment drifts and maintain the performance of the classification model,with accuracies of 91%,87%and 90%,*** the results have been provided only for a few topics,as a proof of concept,this framework can be applied to detect sentiment drifts and perform sentiment classification on real time data streams of any topic.

关键词： sentiment drift sentiment classification big data BeRT real time data streams twitter

Low power Laser Surfi-Sculpt

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稀有金属材料与工程 2011年第S4期40卷 147-150页

作者： J.e.Blackburn p.A.Hilton Laser and Sheet processes Group TWI LtdCambridgeCB21 6ALUnited Kingdom

The functional properties of materials can be enhanced using surface features,for instance;to improve the thermal properties of heat *** development of the laser Surfi-Sculpt process over the past decade has resulted in a technology capable of producing a wide variety of features in metallic ***,the potential for producing similar features in polymeric and ceramic substrates also *** the potential for utilizing high power focused laser beams to produce surface features using this process has been *** paper details the results of recent trials performed with a 200 Yb-fibre laser and a galvanometer driven beam scanner for producing surface features using the Surfi-Sculpt process.A compact,cheap,easily robotically automated,laser Surfi-Sculpt machine,being able to operate at atmospheric pressure may have potential in a range of industry sectors.

关键词： laser surfacing Yb-fibre surfi-sculpt

Negative consequences of positive feedbacks in US wild-fire management

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Forest ecosystems 2015年第2期2卷 57-66页

作者： David e Calkin Matthew p Thompson Mark A Finney Forestry Sciences Laboratory US Forest Service Rocky Mountain Research Station Fire Sciences Laboratory US Forest Service Rocky Mountain Research Station

Over the last two decades wildfire activity, damage, and management cost within the US have increased substantially. These increases have been associated with a number of factors including climate change and fuel accumulation due to a century of active fire suppression. The increased fire activity has occurred during a time of significant ex-urban development of the Wildland Urban Interface （WUI） along with increased demand on water resources originating on forested landscapes. These increased demands have put substantial pressure on federal agencies charged with wildfire management to continue and expand the century old policy of aggressive wildfire suppression. However, aggressive wildfire suppression is one of the major factors that drive the increased extent, intensity, and damage associated with the small number of large wildfires that are unable to be suppressed. In this paper we discuss the positive feedback loops that lead to demands for increasing suppression response while simultaneously increasing wildfire risk in the future. Despite a wealth of scientific research that demonstrates the limitations of the current management paradigm pressure to maintain the existing system are well entrenched and driven by the existing social systems that have evolved under our current management practice. Interestingly, US federal wildland fire policy provides considerable discretion for managers to pursue a range of management objectives however, societal expectations and existing management incentive structures result in policy implementation that is straining the resilience of fire adapted ecosystems and the communities that reside in and adjacent to them.

关键词： Wildfire suppression Wildfire paradox Wildland urban interface Resilience

Notes from the Underground:Receptor-Like Kinases in Arabidopsis Root Development

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Journal of Integrative plant Biology 2013年第12期55卷 1224-1237页

作者： Michael p.Wierzba Frans e.Tax Department of Molecular and Cellular Biology University of Arizona School of plant Sciences University of Arizona

During plant development, the frequency and context of cell division must be controlled, and cells must differentiate properly to perform their mature functions. In addition, stem cell niches need to be maintained as a reservoir for new cells. All of these processes require intercellular signaling, whether it is a cell relaying its position to other cells, or more mature cells signaling to the stem cell niche to regulate the rate of growth. Receptor-like kinases have emerged as a major component in these diverse roles, especially within the Arabidopsis root. In this review, the functions of receptor-like kinase signaling in regulating Arabidopsis root development will be examined in theareas of root apical meristem maintenance, regulation of epidermal cell fate, lateral root development and vascular differentiation.

关键词： Lateral root development receptor-like kinases root apical meristem root epidermal patterning vascular development.

Digestive retention times for Allen’s swamp monkey and L’Hoest’s monkey: data with implications for the evolution of cercopithecine digestive strategy

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Integrative Zoology 2012年第2期7卷 183-191页

作者： Kevin p.BLAINe Joanna e.LAMBeRT Department of Anesthesia Stanford University Medical CenterStanfordCaliforniaUSA Department of ecological Anthropology University of Texas at San AntonioSan AntonioTexasUSA

primates access energy from plant fiber via bacterial fermentation in either a modified forestomach(‘foregut’),a caecocolic(‘hindgut’)chamber of the large intestine,or *** digestive retention times allow for more complete fermentation;as such,primates that consume an herbivorous diet high in fiber are expected to have both relatively and absolutely longer retention times than those mammals that rely on more readily digestible plant foods,such as *** used particulate markers to measure the digestive retention times of captive Allen’s swamp monkeys[Allenopithecus nigroviridis(pocock,1907)](n=3)and L’Hoest’s monkey(Cercopithecus lhoesti ***,1899)(n=2).Results indicate mean retention times of 23.2-29.4 h and 23.2-24.0 h for *** and ***,*** from this study,in combination with previously published data on digestive retention times in other primate species,indicate that cercopithecines differ from other primate taxa by having lengthier retention times that can be predicted by body mass *** data are consistent with the hypothesis that relatively lengthy retention times are a primitive trait for Cercopithecinae.

关键词： Cercopithecinae digestive retention time evolution of diet fermentation plant fiber

Vegetation and Topographic Control on Spatial Variability of Soil Organic Carbon

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pedosphere 2013年第1期23卷 48-58页

作者： I.OUeSLATI p.ALLAMANO e.BONIFACIO p.CLApS DITIC Politecnico di Torino DIVApRA Università di Torino

Soil organic carbon (SOC) is one of the most important parameters affecting the hydraulic characteristics of natural soils. Despite being rather easy to measure, SOC is known to be highly variable in space. In this study, vegetation, climate, and morphology factors were used to reproduce the spatial distribution of SOC in the mineral horizons of forest and grassland areas in north-western Italy and the feasibility of the approach was evaluated. When the overall sample (114 samples) was analyzed, average annual rainfall and elevation were significant descriptors of the SOC variability. However, a large part of the variability remains unexplained. Two stratification criteria were then adopted, based on vegetation and topographic properties. We obtained an improvement of the quality of the estimates, particularly for grasslands and forests in the absence of local curvatures. These results indicate that the spatial variability of soil organic matter is scarcely reproducible at the regional scale, unless an a-priori reduction of the heterogeneity is applied. A discussion on the feasibility of applying stratification criteria to deal with heterogeneous samples closes the paper.

关键词： climate factor natural soils regression analysis SOC

evolving Neural Network Using Variable String Genetic Algorithm for Color Infrared Aerial Image Classification

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Chinese Geographical Science 2008年第2期18卷 162-170页

作者： FU Xiaoyang p e R Dale ZHANG Shuqing Institute of Computer and Science Technology Jilin University Zhuhai 519041 China Griffith sehool of environment Griffith University Queensland 4111 Australia Northeast Institute of Geography and Agroeeology Chinese Aeademy of Seienees Changehun 130012 China

Coastal wetlands are characterized by complex patterns both in their geomorphlc and ecological teatures. Besides field observations, it is necessary to analyze the land cover of wetlands through the color infrared （CIR） aerial photography or remote sensing image. In this paper, we designed an evolving neural network classifier using variable string genetic algorithm （VGA） for the land cover classification of CIR aerial image. With the VGA, the classifier that we designed is able to evolve automatically the appropriate number of hidden nodes for modeling the neural network topology optimally and to find a near-optimal set of connection weights globally. Then, with backpropagation algorithm （Bp）, it can find the best connection weights. The VGA-Bp classifier, which is derived from hybrid algorithms mentioned above, is demonstrated on CIR images classification effectively. Compared with standard classifiers, such as Bayes maximum-likelihood classifier, VGA classifier and Bp-MLp （multi-layer perception） classifier, it has shown that the VGA-Bp classifier can have better performance on highly resolution land cover classification.

关键词： variable string genetic algorithm neural network pattern classification CIR image

The supernova remnant CTB 37B and its associated magnetar CXOU J171405.7-381031:evidence for a magnetar-driven remnant

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Research in Astronomy and Astrophysics 2011年第6期11卷 625-630页

作者： J.e.Horvath M.p.Allen Instituto de Astronomia Geofísica e Ciências Atmosféricas-Universidade de So PauloRua do Mato122605508-900 Cidade Universitria So Paulo SPBrazil CeFeT So paulo Rua Pedro Vicente 62501109-010Caninde'So Paulo SPBrazil

We discuss the association between the candidate magnetar CXOU J171405.7-381031 and the supernova remnant CTB *** recent detection of the period derivative of the object allowed an estimation of a young characteristic age of only ～ *** value is too small to be compatible even with the minimum radius of the remnant being ≥ 10 pc,the value corresponding to the lower limit of the estimated distance of 10.2 ± 3.5 kpc,unless the true distance happens to be even smaller than the lower *** argue that a consistent scenario for the remnant＇s origin,in which the latter is powered by the energy injected by a young magnetar,is indeed more accurate to explain the young age,and demonstrates its non-standard（***-driven） nature.

关键词： stars:supernova — stars:neutron