نتایج جستجو برای: dynamic threshold

تعداد نتایج: 521939  

2010
Tian Qiu Bo Zheng Guang Chen

Based on the daily data of American and Chinese stock markets, the dynamic behavior of a financial network with static and dynamic thresholds is investigated. Compared with the static threshold, the dynamic threshold suppresses the large fluctuation induced by the cross-correlation of individual stock prices, and leads to a stable topological structure in the dynamic evolution. Long-range timec...

2015
Guo-Sheng Yi Jiang Wang Kai-Ming Tsang Xi-Le Wei Bin Deng Maurice J. Chacron

Dynamic spike threshold plays a critical role in neuronal input-output relations. In many neurons, the threshold potential depends on the rate of membrane potential depolarization (dV/dt) preceding a spike. There are two basic classes of neural excitability, i.e., Type I and Type II, according to input-output properties. Although the dynamical and biophysical basis of their spike initiation has...

2007
Liqiong Wei

Multiple-threshold CMOS circuit, which has both high and low threshold transistors in a single chip, can be used to deal with the leakage problem in low voltage low power (LVLP) and high performance applications. The high threshold transistors can suppress the subthreshold leakage current, while the low threshold transistors are used to achieve the high performance. In this paper, we will intro...

پایان نامه :موسسه آموزش عالی غیر دولتی و غیرانتفاعی علامه محدث نوری (ره) - پژوهشکده اقتصاد 1393

dynamic assessment according to vygotskys sociocultural theory, states that instruction and assessment are interrelated. using static forms of assessment with second and foreign language students could do more harm than good. many teachers neglect to take account of the complexity involved in learning a second or foreign language and often wonder why learning of a language take so long. thi...

2000
Ying Jia Yonghong Yan Baosheng Yuan

In this paper, an approach of dynamic threshold setting via Bayesian Information Criterion (BIC) in HMM training is described. The BIC threshold setting is applied to two important applications. Firstly, it is used to set the thresholds for decision tree based state tying, in place of the conventional approach of using a heuristic constant threshold. Secondly, it is applied to choosing the numb...

2005
T. Y. Chiang

The authors report a 0.7V Manchester carry look-ahead circuit using partially depleted (PD) SOI CMOS dynamic threshold (DTMOS) techniques for low-voltage CMOS VLSI systems. Using an asymmetrical dynamic threshold pass-transistor technique with the PD-SOI DTMOS dynamic logic circuit, this 0.7V PD-SOI DTMOS Manchester carry look-ahead circuit has an improvement of 30% in propagation delay time co...

Journal: :Investigative ophthalmology & visual science 2006
Ellen E Freeman Beatriz Muñoz Kathleen A Turano Sheila K West

PURPOSE The purpose of this analysis was to determine whether dynamic measures of vision, such as dynamic acuity and motion threshold, are independently associated with self-reported difficulty in activities involving vision. METHODS Data were used from the third round of the Salisbury Eye Evaluation (n = 1198), a longitudinal, population-based study of older adults. Multiple measures of visu...

1998
Manuel D. Rossetti Timothy Turitto

This research extends a static threshold based control strategy used to control headway variation to a dynamic threshold based control strategy. In the static strategy, buses are controlled by setting a threshold value that holds buses at a control point for a certain amount of time before allowing the bus to continue along the route. The threshold remains constant each time the bus stops at th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1391

در این پایان نامه رنگ آمیزی دینامیکی یک گراف را بیان و مطالعه می کنیم. یک –kرنگ آمیزی سره ی رأسی گراف g را رنگ آمیزی دینامیکی می نامند اگر در همسایه های هر رأس v?v(g) با درجه ی حداقل 2، حداقل 2 رنگ متفاوت ظاهر شوند. کوچکترین عدد صحیح k، به طوری که g دارای –kرنگ آمیزی دینامیکی باشد را عدد رنگی دینامیکی g می نامند و آنرا با نماد ?_2 (g) نمایش می دهند. مونت گمری حدس زده است که تمام گراف های منتظم ...

In this paper, we discuss a multiperiod portfolio selection problem with fuzzy returns. We present a new credibilitic multiperiod mean semi- absolute deviation portfolio selection with some real factors including transaction costs, borrowing constraints, entropy constraints, threshold constraints and risk control. In the proposed model, we quantify the investment return and risk associated with...

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