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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Peak distributions and peak maps in lattice paths
晶格路径 峰分布 峰图
2023/4/13
Dyck paths are classical Catalan objects. The peak distribution of Dyck paths is an important topic of combinatorics, and further the representation of symmetric groups.
The features of soil erosion and soil leakage in karst peak-cluster areas of Southwest China
Soil erosion Soil leakage Karst peak-cluster depression Land use 137Cs tracing Longhe karst ecological experimental site
2018/3/23
Through utilizing water flow monitoring, rock scratching, soil wood piles and radionuclide 137Cs tracing in the Longhe karst ecological experimental site (hereinafter referred to“Longhe site”), Pinggu...
Associations of maternal macronutrient intake during pregnancy with infant BMI peak characteristics and childhood BMI
adiposity carbohydrate childhood BMI growth modeling infancy BMI peak
2018/11/13
Background: Infant body mass index (BMI) peak characteristics and early childhood BMI are emerging markers of future obesity and cardiometabolic disease risk, but little is known about their maternal ...
Peak ground acceleration produced by local earthquakes in volcanic areas of Campi Flegrei and Mt. Vesuvius
Peak ground acceleration Scaling law Stochastic method Mt. Vesuvius Campi Flegrei
2015/9/14
The scaling law of the seismic spectrum experimentally calculated at Mt. Vesuvius and Campi Flegrei is used to constrain the estimate of the maximum expected peak acceleration of ground motion.
Relations between electron contentand peak density: regular and extreme behaviour
contentand electronic
2015/9/14
Electron content statistics offers important information for planning and operation of various application
systems that make use of the transionospheric propagation of radio signals. Electron content...
The peak algebra Pn is a unital subalgebra of the symmetric group algebra,
linearly spanned by sums of permutations with a common set of peaks. By exploiting
the combinatorics of sparse subsets of [...
THE PEAK ALGEBRA AND THE DESCENT ALGEBRAS OF TYPES B AND D
peak algebra signed permutations Coxeter groups
2015/8/14
We show the existence of a unital subalgebra Pn of the symmetric group
algebra linearly spanned by sums of permutations with a common peak set, which we
call the peak algebra. We show that Pn is the...
Comparison of peak and RMS gains for discrete-time systems
Discrete time system the peak more income signal function
2015/8/13
A convolution system can have a frequency response which is small for all frequencies, yet still greatly amplify the peaks of signals passing through it. For finite-dimensional systems, the authors es...
On computing the worst-case peak gain of linear systems
SISO discrete-time LTI systems computation of `1-gain discrete-time systems with diagonal perturbations worst-case `1-gain.
2015/8/12
Based on the bounds in the paper by Boyd and Doyle (Comparison of peak and RMS gains for discrete-time systems, Systems and Control Letters, 9:1-6), we present simple upper and lower bounds for the el...
Pre-peak Ram Pressure Stripping in the Virgo Cluster Spiral Galaxy NGC 4501
NGC 4501 interactions
2014/12/23
VIVA Hi observations of the Virgo spiral galaxy NGC 4501 are presented. The Hi disk is sharply truncated to the southwest, well within the stellar disk. A region of low surface-density gas, which is m...
Peak Nothing: Recent Trends in Mineral Resource Production
Peak Nothing Recent Trends Mineral Resource Production Geophysics
2011/8/11
Abstract: The production histories of seventeen raw materials are analyzed with the logistic model. Although many of these resources have exhibited logistic behavior in the past, they now show exponen...
Can transport peak explain the low-mass enhancement of dileptons at RHIC?
dileptons at RHIC
2011/7/20
We propose a novel relation between the low-mass enhancement of dielectrons observed at PHENIX and transport coefficients of QGP such as the charge diffusion constant $D$ and the relaxation time $\tau...
Stability of fragments and study of participant-spectator matter at peak center-of-mass energy
center-of-mass energy participant-spectator matter
2011/7/20
We simulate the central reactions of nearly symmetric, and asymmetric systems, for the energies at which the maximum production of IMFs occurs (E$_{c.m.}^{peak}$).This study is carried out by using ha...
Long-term record of aerosol optical properties and chemical composition from a high-altitude site (Manora Peak) in Central Himalaya
aerosol optical properties chemical composition a high-altitude site (Manora Peak) Central Himalaya
2010/12/28
A long-term study, conducted from February 2005 to July 2008, involving chemical composition and optical properties of ambient aerosols from a high-altitude site (Manora Peak: 29.4° N, 79.5° E, ~1950 ...
Design flood hydrographs from the relationship between flood peak and volume
Design flood hydrographs relationship between flood peak volume
2010/12/22
Hydrological frequency analyses are usually focused on flood peaks. Flood volumes and durations have not been studied as extensively, although there are many practical situations, such as when designi...