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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The distribution on periods of the continued fraction of $\sqrt{d}$
$sqrt{d}$ 连续分数 周期
2023/4/18
The continued fraction is a very old and classical object. Its period is closely related to the solubility of the Pell equations, and also to the class group of quadratic fields. Last year, Koymans an...
Optimal forest rotation periods: integrating timber production and carbon sequestration benefits in Pinus tabulaeformis plantations on the Loess Plateau, PR China
Optimal rotation period timber production benefits carbon sequestration avenues ARIMA models
2024/2/27
Determining the optimal rotation period was a crucial component of forest sustainable management strategies, especially under climate change. This paper had two objectives: (1) to determine the econom...
Plasma leptin concentrations in obese children: changes during 4-mo periods with and without physical training
exercise obesity children
2016/5/30
Little is known about the effects of physical
training on plasma leptin concentrations in children.
The data do not seem to support a benefit to BCAA supplementation during periods of caloric restriction
BCAA supplementation caloric restriction
2016/5/16
J Int Soc Sports Nutr 13:1-015-0112-9, 2016 describe the efficacy of branched chain amino acid (BCAA) supplementation and resistance training for maintaining lean body mass during a calorie-restricted...
TEMPERATE FOREST HEIGHT ESTIMATION PERFORMANCE USING ICESAT GLAS DATA FROM DIFFERENT OBSERVATION PERIODS
Temperate Forest Height Large Footprint Lidar waveform ICEsat GLAS Observation Period
2015/12/31
To investigate the forest height estimation potential and performance of different observation periods GLAS data in temperate region, this study uses the Northeast of China as test site. USFS FIA styl...
Discrimination of storage periods for Macrocybe gigantea (Massee) using UV spectral fingerprints
mushrooms storage time differentiation UV spectroscopy multivariate analyses
2015/10/9
Macrocybe gigantea (Massee) Pegler & Lodge is a species of edible mushrooms which has important nutritional, medicinal, and economic values. Discrimination of M. gigantea with different storage period...
We show that the coefficients in the Laurent series of the
Igusa local zeta functions I(s) = R
C
f
sω are periods. This is proved by
first showing the existence of functional equation...
Validation of a method for ionospheric electron density reconstruction by means of vertical incidence data during quiet and storm periods
electron density model vertical incidence ionograms ionospheric data ingestion
2015/9/10
A preliminary validation of the technique developed using the NeQuick ionospheric model and the 玡ffective ionization
parameter?Az, based on vertical total electron content data ingestion, was carried...
In this article we present an approach for tackling three important aspects of text normalization: sentence boundary disambiguation, disambiguation of capitalized words in positions where
capitalizat...
Building ndvi-phenology comparison method to detect growing periods during 1982~1999a in northeast china
Growing Periods NDVI-Phenology Comparison Method AVHRR/NOAA NDVI data
2015/8/20
Plant phenology is an integraph of global changes and a comprehensive indicator of landscape and entironment changes, and its
responses to global environment changes have become a focus of the field ...
AROME-WMED,a real-time mesoscale model designed for the HyMeX special observation periods
AROME-WMED real-time mesoscale model designed HyMeX special observation periods
2015/8/6
During autumn 2012 and winter 2013, two special observation periods (SOPs) of the HYdrological cycle in the Mediterranean EXperiment (HyMeX) took place. For the preparatory studies and to support the ...
Influence of Feeding Enzymatically Hydrolyzed Yeast Cell Wall on Growth Performance and Digestive Function of Feedlot Cattle during Periods of Elevated Ambient Temperature
Yeast Growth Performance Digestion Cattle
2016/5/18
In experiment 1, eighty crossbred steers (239±15 kg) were used in a 229-d experiment to evaluate the effects of increasing levels of enzymatically hydrolyzed yeast (EHY) cell wall in diets on growth p...
Immunohistological changes in skin wounds during the early periods of healing in a rat model
tissue repair and regeneration cell differentiation transition proliferation wound healing
2015/4/16
The complexity of the wound healing process, which is still poorly understood, prompted us to perform an immunohistochemical investigation using rat skin as an in vivo model. Fifteen Sprague-Dawley ra...
The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations
regeneration root system growth performance of young plantation
2015/3/6
The root-plant ratio is one of the important parameters for planting stock quality. We suppose that the ratio is one of the driving variables for the growth performance of new plantation in the forest...
MONSTER HURRICANES REACHED U.S. NORTHEAST DURING PREHISTORIC PERIODS OF OCEAN WARMING（图）
MONSTER HURRICANES REACHED U.S. NORTHEAST OCEAN WARMING
2015/3/4
Intense hurricanes possibly more powerful than any storms New England has experienced in recorded history frequently pounded the region during the first millennium, from the peak of the Roman Empire i...