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植物生态学报 2007年第4期31卷 695-710页

作者： Jonathan M.Frantz Nilton N.Cometti marc w.van iersel Bruce Bugbee USDA ARSApplication Technology Research Unit 2801 W.BancroftMail Stop 604ToledoOH 43606USA Escola Agrotécnica Federal de Colatina Cx Postal 256CEP 29709-910 ColatinaESBrasil Department of Horticulture the University of GeorgiaAthensGA 30602-7273USA Crop Physiology Laboratory Department of PlantsSoilsand BiometeorologyUtah State UniversityLoganUT 84322-4820USA

Aims Changes in light and temperature are among the most common and most profound environmental perturbations. The independent effects of light and temperature on photosynthesis and respiration are well studied in single leaves, but are less well studied in whole plants. The short and long term influence of light and temperature on carbon use efficiency is also poorly understood, and is commonly modeled to remain constant over a wide range of conditions. we sought to determine the primary effects of changing light at two growth temperatures on photosynthesis, respiration, and their balance, as defined by carbon use efficiency. Methods we separated respiration into growth and maintenance components using whole-canopy gas-exchange in an elevated CO2 environment in a controlled environment, and supplemented that information with tissue analysis. Important findings Decreases in light level decreased carbon use efficiency through a reduction in the maintenance coefficient, increased the growth coefficient, and reduced partitioning of N in protein. Growth temperature did not significantly affect either maintenance or growth respiration coefficients, suggesting that long-term temperature responses can differ greatly from short-term observations.

关键词：番茄光照温度环境适应性二氧化碳碳素利用率遮阳棚

Towards estimating shade response of bermudagrass(Cynodon spp.)using field-based photosynthetic properties

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Grass Research 2022年第1期2卷 20-25,I0001-I0004页

作者： Jonathon L.Fox David Jespersen Lisa L.Baxter John L.Snider marc w.van iersel Brian M.Schwartz Department of Crop and Soil Sciences University of Georgia2360 Rainwater Rd.TiftonGA 31794USA Department of Crop and Soil Sciences University of Georgia1109 Experiment St.GriffinGA 30223USA Department of Horticulture University of Georgia1111 Plant Science BuildingAthensGA 30602USA

Shade tolerance is a highly desirable trait when breeding new bermudagrass(Cynodon spp.)lines,but current screening methods can take many years to *** is a clear need for large-scale turfgrass breeding programs to reliably,accurately,and quickly predict shade tolerance in their *** objectives of this research were to:(i)build custom chambers to reproducibly estimate photosynthetic characteristics from turfgrass canopies at different light intensities and(ii)determine which photosynthetic characteristics are indicative of past shade performance.A custom-built chamber was constructed to determine average photosynthetic characteristics for the whole plant by studying the turfgrass canopy at natural leaf angles for light *** tolerant(11-T-56)and shade sensitive(Tifway)bermudagrass cultivars were used to examine the effectiveness of the chamber within an array of photosynthetic characteristics when the grasses were grown in full-sun and 73%shade *** compensation point,chlorophyll content,quantum yield,dark respiration rate,and maximum quantum yield of photosystem II were evaluated in this *** on the results of this study,the authors recommend that light compensation point or maximum quantum yield be further evaluated as an accurate indicator of shade tolerance when performed in the field on spring days with grasses grown in full sun or 73%shade *** Rd rates and ambient temperatures on spring days appear to minimize unexplained variance in the data,which would allow researchers to better detect genotypic differences during this season.

关键词： breeding field estimating

环境可控农业中基于生物反馈系统的光合作用光照控制方法

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农业工程技术 2016年第28期36卷 24-27页

作者： marc w.van iersel Geoffrey weaver Michael T.Martin Rhuanito S.Ferrarezi Erico Mattos Mark Haidekker 田婧李明 Department of Horticulture University of Georgia Agricultural Experiment Station University of the Virgin Islands PhytoSynthetix LLC College of Engineering University of Georgia 农业部规划设计研究院设施农业研究所北京100125

环境可控农业包括利用温室和室内设施进行农业生产，这种方式在全球农业生产体系中变的越来越重要。完全密闭型植物工厂自20世纪70年代起在日本开始快速发展，目前广泛分布于大都市的郊区。近年来，垂直农场（大型的室内农业生产设施）... 详细信息

环境可控农业包括利用温室和室内设施进行农业生产，这种方式在全球农业生产体系中变的越来越重要。完全密闭型植物工厂自20世纪70年代起在日本开始快速发展，目前广泛分布于大都市的郊区。近年来，垂直农场（大型的室内农业生产设施）也受到越来越多的关注。这类设施不仅可以有效解决人口快速增长带来的粮食短缺问题，还能减少农业生产对环境的影响。

关键词：农业生产光照控制光合作用反馈系统环境可控生物室内设施

Computational modelling of gas–liquid–solid multiphase free surface flow with and without evaporation

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Particuology 2024年第7期90卷 218-235页

作者： Huihuang Xia marc Kamlah Institute for Applied Materials(IAM) Karlsruhe Institute of Technology(KIT)Hermann-von Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany

Gas–liquid–solid multiphase systems are ubiquitous in engineering applications,*** printing,spray drying and *** a numerical framework for modelling these multiphase systems is of great *** improved,resolved computational fluid dynamics-discrete element method(CFD-DEM)framework is developed to model the multiphase free surface flow with and without *** improved capillary force model is developed to compute the capillary interactions for partially floating particles at a free *** well-known benchmark cases,namely drag coefficient calculation,the single sphere settling,and drafting-kissing-tumbling of two particles are conducted to validate the resolved CFD-DEM *** turns out that the resolved CFD-DEM model developed in this paper can accurately calculate the fluid–solid interactions and predict the trajectory of solid particles interacting with the liquid *** demonstrations,namely two particles moving along a free surface when the liquid phase evaporates,and particle transport and accumulations inside an evaporating sessile droplet show the performance of the resolved model.

关键词： Capillary force Discrete element method Liquid bridge Particle transport Resolved CFD-DEM Volume of fluid

Bound and Resonating Multiquark Configurations

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Chinese Physics Letters 2024年第8期41卷 8-12页

作者： Jean-marc Richard Institut de Physique des 2 Infinis de Lyon Université Claude Bernard(Lyon 1) CNRS-IN2P34 rue Enrico Fermi69622 VilleurbanneFrance

we review the predictions of quark models for multiquark configurations that are bound or resonant states,and compare different methods for estimating the properties of resonances.

关键词： quark Configuration resonant

CURDIS:A template for incremental curve discretization algorithms and its application to conics

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虚拟现实与智能硬件（中英文） 2024年第5期6卷 358-382页

作者： Philippe LATOUR marc van DROOGENBROECK Montefiore Institute University of LiègeQuartier Polytech 1Allée de la découverte 104000 LiègeBelgium

we introduce CURDIS,a template for algorithms to discretize arcs of regular curves by incrementally producing a list of support pixels covering the *** this template,algorithms proceed by finding the tangent quadrant at each point of the arc and determining which side the curve exits the pixel according to a tailored *** two elements can be adapted for any type of curve,leading to algorithms dedicated to the shape of specific *** the calculation of the tangent quadrant for various curves,such as lines,conics,or cubics,is simple,it is more complex to analyze how pixels are traversed by the *** the case of conic arcs,we found a criterion for determining the pixel exit *** leads us to present a new algorithm,called CURDIS-C,specific to the discretization of conics,for which we provide all the ***,the criterion for conics requires between one and three sign tests and four additions per pixel,making the algorithm efficient for resource-constrained systems and feasible for fixed-point or integer arithmetic *** algorithm also perfectly handles the pathological cases in which the conic intersects a pixel twice or changes quadrants multiple times within this pixel,achieving this generality at the cost of potentially computing up to two square roots per *** illustrate the use of CURDIS for the discretization of different curves,such as ellipses,hyperbolas,and parabolas,even when they degenerate into lines or corners.

关键词： Computer graphics Curve discretization Conics Rasterization Ellipse drawing Conic spline Conic pencil

Sperm function, mitochondrial activity and in vivo fertility are associated to their mitochondrial DNA content in pigs

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Journal of Animal Science and Biotechnology 2024年第4期15卷 1550-1558页

作者： marc Llavanera Yentel Mateo‑Otero Estel Vinolas‑Vergés Sergi Bonet marc Yeste Unit of Cell Biology Department of BiologyFaculty of SciencesUniversity of GironaGirona ES‑17003Spain Biotechnology of Animal and Human Reproduction(TechnoSperm) Institute of Food and Agricultural TechnologyUniversity of GironaGirona ES‑17003Spain Catalan Institution for Research and Advanced Studies(ICREA) Barcelona ES‑08010Spain

Background Despite their low abundance in sperm, mitochondria have diverse functions in this cell type, includ-ing energy production, signalling and calcium regulation. In humans, sperm mitochondrial DNA content(mtDNAc) has been reported to be negatively linked to sperm function and fertility. Yet, the association between mtDNAc and sperm function in livestock remains unexplored. For this reason, this study aimed to shed some light on the link between mtDNAc and sperm function and fertilising potential in pigs. A qPCR method for mtDNAc quantification was optimised for pig sperm, and the association of this parameter with sperm motility, kinematics, mitochondrial activity, and fertility was subsequently *** First, the q PCR method was found to be sensitive and efficient for mtDNAc quantification in pig sperm. By using this technique, mtDNAc was observed to be associated to sperm motility, mitochondrial activity and in vivo, but not in vitro, fertility outcomes. Specifically, sperm with low mtDNAc were seen to exhibit greater motility but decreased mitochondrial activity and intracellular reactive oxygen species. Interestingly, samples with lower mtD-NAc showed higher conception and farrowing rates, but similar in vitro fertilisation rates and embryo development, when compared to those with greater *** These findings enrich our comprehension of the association of mtDNAc with sperm biology, and lay the foundation for future research into employing this parameter as a molecular predictor for sperm function and fer-tility in livestock.

关键词： Fertility Mitochondria Motility mtDNA copy number qPCR Sperm

The germline genetics of mild-to-moderate penetrance:An intriguing role of PRAME in multiple carcinogenesis

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Genes & Diseases 2024年第3期11卷 7-10页

作者： Diaddin Hamdan van Tai Nguyen Justine Paris Christophe Leboeuf Morad El Bouchtaoui marc Espie Anne Janin Geraldine Falgarone Melanie Di Benedetto Guithem Bousquet Universite de Paris Cite INSERMUMR_S942MASCOTParis F-75006France Hopital La Porte Verte Versailles F-78004France National Cancer Hospital Cancer Research and Clinical Trials CenterHaNoi100000VietNam AP-HP-Hopital Saint Louis Centre de Maladies du SeinParisF-75010France Universite Sorbonne Paris Nord Bobigny F-93000France AP-HP-Hopital Avicenne Unite de Medecine AmbulatoireBobigny F-93000France

Germline genetics of high penetrance such as BRCA genes,mutations might be sufficient for carcinogenesis,but this only explains fewer than 10%of *** assume that most cancers are the result of germline mutations of low to moderate penetrance,combined with acquired mutations due to external carcinogenic *** their accumulation over time,aging is associated with an increased risk of multiple cancer development in a given *** decades,germline genetics have been based on familial linkage studies enabling most high-penetrance genes to be *** recently,population-wide studies have led to the identification of considerable numbers of polymorphisms associated with cancer ***,most of them are of unknown functional value,thus limiting their translational application.

关键词： carcinogenesis BRCA linkage

Piezoelectric resonant ice protection systems–Part1/2:Prediction of power requirement for de-icing a NACA 0024 leading edge

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Chinese Journal of Aeronautics 2024年第3期37卷 92-103页

作者： Valerian PALANQUE Jason POTHIN Vale′rie POMMIER-BUDINGER marc BUDINGER Institut Clement Ader University of ToulouseINSAISAE-SUPAEROMINES ALBIUPSCNRSToulouse 31055France ISAE-SUPAERO University of Toulouse10 Avenue Edouard BelinToulouse 31055France

This paper proposes a numerical method to analyze the ice protection capability and predict the power requirements of a piezoelectric resonant de-icing *** method is based on a coupled electro-mechanical finite element analysis which enables the fast computation of the modes of resonance of interest to de-ice curved surfaces and the estimation of the input voltage and current required for a given configuration(defined by its mode,actuator location,ice deposit,etc.).Eventually,the electric power to be supplied can be also *** method is applied to a NACA 0024 leading edge equipped with piezoelectric ***,two extension modes are analyzed and compared with respect to their efficiency and power ***,tests are carried out in an icing tunnel to verify the effectiveness of the piezoelectric ice protection system and the predictions of the maximal required *** system allows de-icing the leading edge in less than 2 s for a glaze ice deposit.

关键词： Ice protection system Piezoelectric Resonance mode Ice fracture Leading edge de-icing

Populism as a Crisis of Democratic Legitimacy:with Some References to France and the United States

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Fudan Journal of the Humanities and Social Sciences 2024年第2期17卷 193-209页

作者： Jean-marc Coicaud Law and Global Affairs Rutgers UniversityRutgersUSA Fudan Institute for Advanced Study in Social Sciences ShanghaiChina

Populism combines the following characteristics:a rejection of economic policies linked to globalization;a condemnation of political and economic elites perceived as allied,directly or indirectly,to globalization policies;a nationalist conception of the national interest;a mistrust of immigration,seen as a threat to identity;as for populism’s supporters,a rather popular sociological profile,and an electoral profile that tends toward the“hard right”(“droite dure”),without ruling out bridges to the“hard left”(“gauche dure”).Having said this,I propose to defend three theses:populism is not the solution to the problems of the countries where it is developing,whether in France,the United States or elsewhere;it would be dangerous,however,to ignore the crises of which populism is the product;it is essential to take the measure of the problems that favor its emergence and to try to provide answers to them.

关键词： Populism Democratic legitimacy Hard right Hard left