搜索结果: 1-15 共查到“理学 Stock”相关记录20条 . 查询时间(0.061 秒)
Day-of-the-week effect in the Nigerian Stock Market Returns and Volatility: Does the Distributional Assumptions Influence Disappearance?
Day-of-the-week Disappearance GARCH Model Stock
<
2016/1/27
This study assesses the influence of error distributional assumption on appearance or disappearance of day-of-the-week effects in returns and volatility using the Nigerian stock exchange (NSE-30). The...
Influence of natural leaf drop and nutritional status of the stock plant on rooting of peach cuttings
hardwood cuttings peach cultivars rooting
<
2015/1/20
This study showed that rooting is strongly affected by natural leaf drop occurring during cutting collection. Observations carried out during sampling showed that cultivars with more than 80% leaf dro...
Conventional tillage versus organic farming in relation to soil organic carbon stock in olive groves in Mediterranean rangelands (southern Spain)
Conventional tillage organic farming soil organic carbon stock olive groves Mediterranean rangelands
<
2015/1/6
Soil organic carbon (SOC) concentration is a soil variable subject to changes. The management system is a key factor that influences these changes. To determine the long-term effects of the management...
Professor Joann M. Stock，Division of Geological and Planetary Sciences at California Institute of Technology （图）
Professor Joann M. Stock Division of Geological and Planetary Sciences at California Institute of Technology
<
2014/4/8
stock, J. M., A. Martin-Barajas, M. Tellez-Duarte, Early rift sedimentation and structure along the NE margin of Baja California, in Patrick L. Abbott and John D. Cooper, eds., Field Conference Guide ...
Financial factor influence on scaling and memory of trading volume in stock market
Financial facto trading volume stock market
<
2011/9/13
We study the daily trading volume volatility of 17,197 stocks in the U.S. stock markets during the period 1989–2008 and analyze the time return intervals between volume volatilities above a given th...
Seabed foraging by Antarctic krill: Implications for stock assessment, bentho-pelagic coupling, and the vertical transfer of iron
Seabed foraging by Antarctic krill Implications for stock assessment bentho-pelagic coupling the vertical transfer of iron
<
2014/4/8
A compilation of more than 30 studies shows that adult Antarctic krill (Euphausia superba) may frequent benthic habitats year-round, in shelf as well as oceanic waters and throughout their circumpolar...
Nonlinear Stochastic Model of Return matching to the data of New York and Vilnius Stock Exchanges
Nonlinear Stochastic Model Return matching Vilnius Stock Exchanges
<
2010/4/27
We scale and analyze the empirical data of return from New York and Vilnius stock exchanges matching it to the same nonlinear double stochastic model of return in financial market.
We provide an empirical investigation aimed at uncovering the statistical properties of intricate stock trading networks based on the order flow data of a highly liquid stock (Shenzhen Development Ban...
Order flow dynamics around extreme price changes on an emerging stock market
Order flow dynamics price changes emerging stock market
<
2010/4/27
We study the dynamics of order flows around large intraday price changes using ultra-high-frequency data from the Shenzhen Stock Exchange. We find a significant reversal of price for both intraday pri...
The level crossing analysis of German stock market index (DAX) and daily oil price time series
German stock market index daily oil price time series
<
2010/4/27
The level crossing analysis of DAX and oil price time series are given. We determine the average frequency of positive-slope crossings, $\nu_{\alpha}^+$, where $T_{\alpha} =1/\nu_{\alpha}^+ $ is the a...
Jürgen Stock and his impact on modern astronomy in South America
Jürgen Stock South America modern astronomy
<
2009/6/30
Jürgen Stock and his impact on modern astronomy in South America。
Stock,Dynamics of Soil Organic Carbon of China and the Role in Climate Change Mitigation
China soil organic carbon stock climate change mitigation C sequestration croplands
<
2010/2/21
This paper synthesizes the studies on China’s soil organic carbon (SOC) stock and the dynamics, especially of croplands and discusses the significance in climate change mitigation of the state. The st...
Numerical simulation of a diffusion type evolutionary stock market model
Behavioral Finance Evolutionary Finance Wealth dynamics
<
2010/9/14
We adapt the evolutionary stock market model from Evstigneev, Hens, Schenk-Hopp´e (2006) to a continuous time framework, where uncer-tainty in dividends is produced by a single Wiener process. T...
Backtracking Greedy Algorithm for Cutting Stock Problems
Backtracking Cutting Stock Problem Greedy Algorithm No Fit Polygon
<
2011/12/15
This paper presents a greedy search placement algorithm which incorporates backtracking for the leather stock cutting problem. In the leather manufacturing industry the efficient cutting of component ...
Stock Assessment and Management of the Egyptian Sole Solea aegyptiaca Chabanaud, 1927 (Osteichthyes: Soleidae), in the Southeastern Mediterranean, Egypt
Mediterranean Port Said Solea aegyptiaca Soleidae age and growth stock assessment reference points management
<
2010/3/26
Aspects of the population dynamics of the Egyptian sole, Solea aegyptiaca, which is a commercially important endemic and demersal flatfish species in the Egyptian Mediterranean waters, were described ...