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Estimate of the l^p-Fourier Transform Norm on Strong *-Regular Exponential Solvable lie Groups

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Acta Mathematica Sinica,English Series 2007年第7期23卷 1173-1188页

作者： A.BAKlOUTI J.lUDWIG l.SCUTO K.SMAOUI Departement of Mathematics Sfax University Departement of Mathematics Metz University

We study the l^p-Fourier transform for a special class of exponential lie groups, the strong ＊-regular exponential lie groups. Moreover, we provide an estimate of its norm using the orbit method.

关键词： exponential lie group Plancherel measure unitary representation coadjoint orbit l^p- Fourier transform

ON BOUNDARY TREATMENT FOR THE NUMERICAl SOlUTION OF THE INCOMPRESSIBlE NAVIER-STOKES EQUATIONS WITH FINITE DIFFERENCE METHODS

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Journal of Computational Mathematics 1996年第2期14卷 135-142页

作者： Huang l C 中科院计算数学与科学工程计算所北京

The Inheritance and Variation of Gum Content in Guar [Cyamopsis tetragonoloba (l.) Taub.]

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Agricultural Sciences in China 2009年第12期8卷 1517-1522页

作者： lIU Wei-xin HOU An-fu Ellen B Peffiey Dick l Auld College of Horticulture Qingdao Agricultural University Qingdao 266109 P.R. China Department of Plant ＆ Soil Sciences Texas Tech University Lubbock TX 79409 USA

Guar [Cyamopsis tetragonoloba （l.） Taub.] is one of the most important industrial crops due to its richness in gum. Understanding the inheritance of gum content is a key to its successful genetic improvement. Gum content expression is reported to be controlled by additive, dominant, and epistatic effects, and modified by the environment, fg%, a relative gum content calculated by comparing with the gum content of Kinman was used as gum content （%） in this experiment. Reciprocal crosses of two lines of guar, PI 217923 and lewis, were made to study the heritability of gum content （fg%）. fg% of four plant introductions and four commercial varieties were studied in lubbock in 1999-2002. Estimates of broadsense heritability （h^2 b,s.） of fg% in lewis x PI 217923 and PI 217923 x lewis were 75.53 and 52.74%, respectively. Estimates of narrow-sense heritability （h2 n.s.） of fg% were 40.00 and 29.00% thr lewis x PI 217923 and PI 217923 x lewis, respectively. At least one pair of genes were estimated to control the fg% expression in these two crosses, Significant differences of fg% were found among these eight entries. PI 217923 was found to have the highest fg% among the eight entries.

关键词： guar Cyamopsis tetragonoloba,gum content (fg%) heritability

PREDICTIVE MODElS AND GENERATIVE COMPlEXITY

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Journal of Systems Science & Complexity 2012年第1期25卷 30-45页

作者： Wolfgang lHR Max Planck Institute for Mathematics in the Sciences Inselstraβe 22D-04103 LeipziqGermany

The causal states of computational mechanics define the minimal sufficient memory for a given discrete stationary stochastic process. Their entropy is an important complexity measure called statistical complexity （or true measure complexity）. They induce the s-machine, which is a hidden Markov model （HMM） generating the process. But it is not the minimal one, although generative HMMs also have a natural predictive interpretation. This paper gives a mathematical proof of the idea that the s-machine is the minimal HMM with an additional （partial） determinism condition. Minimal internal state entropy of a generative HMM is in analogy to statistical complexity called generative complexity. This paper also shows that generative complexity depends on the process in a nice way. It is, as a function of the process, lower semi-continuous （w.r.t. weak-, topology）, concave, and behaves nice under ergodic decomposition of the process.

关键词： Causal states complexity s-machine generative complexity HMM partially deterministicHMM predictive model statistical.

Electrophysiological responses of the rice striped stem borer Chilo suppressalis to volatiles of the trap plant vetiver grass (Vetiveria zizanioides l.)

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Journal of Integrative Agriculture 2017年第11期16卷 2525-2533页

作者： lU Yan-hui lIU Kai ZHENG Xu-song lü Zhong-xian State Key laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control Institute of Plant Protection and Microbiology Zhejiang Academy of Agricultural Sciences Hangzhou 310021 P.R. China

Vetiver grass （Vetiveria zizanioides l.） was previously found to effectively attract female adults of Chilo suppressalis （Walker）, an important pest of rice. To determine the volatile compounds involved in this attraction, electroantennography （EAG） responses to seven synthetic volatiles released from vetiver plants were examined. Our results indicated that the responses of C. suppressalis adult antennae to the different compounds varied widely. The compounds elicited strong EAG responses in female antennae were subsequently selected for further EAG response tests, namely, caryophyllene, β-ocimene, linalool and a-pinene. EAG responses to a combination of these four compounds did not differ significantly from the individual compounds. However, pair combination tests indicated that 0.01μg μl-1linalool and 50 μg μl-1 α-pinene, 50 μgμl-1 caryophyllene and 0.01μg μl-1 linalool, 0.01 μg μl-1 13-ocimene and 0.01 μg μl-1 linalool, and 0.01μg μl-1 β-ocimene and 50 μg μl-1 caryophyllene elicited significantly greater EAG responses in 3-day female moths compared to the 1-day female. These compound combinations and the corresponding ratios are probably playing an important role in attracting female adults of C. suppressalis to the vetiver grass.

关键词： Chilo suppressalis electroantennography (EAG) volatiles vetiver grass trapping mechanism attraction

Noise and vibration measurements in a Viking military vehicle

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Defence Technology（防务技术） 2021年第6期17卷 1976-1987页

作者： Gurmail S.Paddan Marietta l.l.McIlraith Institute of Naval Medicine Crescent RoadAlverstokeHampshirePO122DLUK Formerly at Institute of Naval Medicine Crescent RoadAlverstokeHampshirePO122DLUK

Noise and whole-body vibration measurements were made in a Viking military vehicle to determine the variation that should be expected during repeat measures,the effect of speed(up to 60 km/h in 5 km/h increments),and during travel over different types of terrain(comprising concrete road,gravel track and rough cross-country).Measurements were made at various crew positions(including the driver and commander)in both the front and the rear cabs in the *** translational axes of vibration were measured in each *** speeds were investigated over road(35 km/h and 55e60 km/h)and gravel(20 km/h and 35 km/h)*** effect of varying speed of the vehicle on the measured noise and vibration magnitudes was also *** highest sound pressure level(lAeq)of 104 dB(A)was measured at the commander’s standing position during travel over concrete road at 55 km/*** noise levels occurred for a standing commander compared with when sitting on the seat.A maximum single axis frequency-weighted vibration magnitude of 1.0 m/s^(2) *** measured on the driver’s seat during travel over track at 35 km/*** vibration magnitudes occurred during travel over track compared with travel over *** noise and vibration exposure of crew within the Viking vehicle increased with increasing speed of the vehicle.

关键词： Noise Whole-body vibration Vibration dose value Viking military vehicle

Waveform liDAR concepts and applications for potential vegetation phenology monitoring and modeling:a comprehensive review

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Geo-Spatial Information Science 2021年第2期24卷 179-200,I0001页

作者： Eric Ariel l Salas Agricultural Research Development Program(ARDP) Central State UniversityWilberforceUSA

Researchers continually demonstrated through published literature how liDAR could create unparalleled measurements of ecosystem structure and forest *** are a number of studies conducted utilizing waveform liDAR products for terrestrial monitoring,but those that deal specifically with the assessment of space-borne waveform liDAR for monitoring and modeling of phenology is very *** review highlights the waveform liDAR system and looks into satellite sensors that could link waveform liDAR and vegetation phenology,such as the proposed NASA’s Global Ecosystem Dynamics Investigation(GEDI)and the Japanese Experimental Module(JEM)-borne liDAR sensor named MOlI(Multi-footprint Observation lIDAR and Imager).Further,this work examines the richness and utility of the waveform returns and proposes a spline-function-derived model that could be exploited for estimating the leaf-shooting *** new approach may be utilized for ecosystem-level phenological studies.

关键词： Ecosystems gedi moli phenology vegetation modeling waveform liDAR

Applying machine learning to study fluid mechanics

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Acta Mechanica Sinica 2021年第12期37卷 1718-1726页

作者： Steven l.Brunton Department of Mechanical Engineering University of WashingtonSeattleWA 98195USA

This paper provides a short overview of how to use machine learning to build data-driven models in fluid *** process of machine learning is broken down into five stages:(1)formulating a problem to model,(2)collecting and curating training data to inform the model,(3)choosing an architecture with which to represent themodel,(4)designing a loss function to assess the performance of the model,and(5)selecting and implementing an optimization algorithm to train the *** each stage,we discuss how prior physical knowledge may be embedding into the process,with specific examples from the field of fluid mechanics.

关键词： Machine learning Fluid mechanics Physics-informed machine learning Neural networks Deep learning

Beyond COVID: Reframing the Global Problematique with STiP (Systems Thinking in Practice)

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Journal of Systems Science and Systems Engineering 2023年第1期32卷 1-15页

作者： Raymond l.Ison IFSR(International Federation for Systems Research)&Applied Systems Thinking in Practice(ASTiP)Group School of Engineering&InnovationThe Open UniversityWalton HallUK

Since 2019 humanity has been subjected to the perturbations of pandemic,economic disruption,war,civil unrest and changes in whole-Earth dynamics associated with a human-induced *** perturbation is like a wave-front breaking on the shore of our historical ways of thinking and acting,increasingly unfit for our human *** challenge to humanity is not *** 1970 the French term‘problematique’was coined to refer to a set of 49 interrelated global problems;the classic description of wicked and tame problems was published soon after,yet little progress has been made towards answering the question:what purposeful action will aid human flourishing,create and sustain a viable space for humanity,in our ongoing co-evolution with the Anthropocene-Biosphere?A case for innovation in our ways of knowing and doing is made based on arguments that our social world is constrained by:(i)explanations we accept that are no longer relevant to our circumstances;(ii)outdated historical institutions(in the institutional economics sense)that contribute as social technologies to a broader human created and ungoverned technosphere;(iii)inadequate theory-informed practices,or praxis,and(iv)governance-systems no longer adequate for *** of knowledge science and systems science are urged to act reflexively to critically evaluate the traditions-of-understanding out of which they think and act.

关键词： Cybersystemics governance systems reframing and framing critical social learning system