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  1. No Access

    Article

    Kantorovich-Bernstein polynomials

    A gap between saturation and direct-converse theorems for Kantoro-vich-Bernstein polynomials will be closed for a steady rate of convergence. The present theorems unify the above-mentioned results. Furthermore...

    Zeev Ditzian, **nlong Zhou in Constructive Approximation (1990)

  2. No Access

    Article

    Hermite-Fejer-type operators I

    The aim of this paper is to investigate Hermite-Fejer-type interpolation operators based on the zeros of Jacobi polynomails. To achieve our goal, we develop a new technique for deriving error estimates for the...

    **nlong Zhou in Approximation Theory and its Applications (1994)

  3. No Access

    Article

    Hermite-Fejér-type operators II

    This paper deals with the problems of the saturation and the possibility of approximation for Hermite-Fejér-type operators.

    **nlong Zhou in Approximation Theory and its Applications (1995)

  4. No Access

    Article

    Degree of approximation associated with some elliptic operators and its applications

    The Jackson-type estimates by using some elliptic operators will be achieved. These results will be used to characterize the regularity of some elliptic operators by means of the approximation degree and the s...

    **nlong Zhou in Approximation Theory and its Applications (1995)

  5. No Access

    Article

    The Saturation Class of Shepard Operators

    The saturation problem of the Shepard operators for 1 ≦ λ ≦ 2 is completely settled.

    **nlong Zhou in Acta Mathematica Hungarica (1998)

  6. No Access

    Chapter and Conference Paper

    Some Inequalities for Trigonometric Polynomials and their Derivatives

    In trigonometric approximation one can show that smoothness of a function is equivalent to a quick decrease to zero of its error of approximation by trigonometric polynomials. The key steps to show this are th...

    Hans-Bernd Knoop, **nlong Zhou in New Developments in Approximation Theory (1999)

  7. No Access

    Chapter and Conference Paper

    On the Regularity of Some Differential Operators

    In the present paper we investigate the regularity of some differential operators which occur in the theory of orthogonal polynomials and in approximation theory.

    Karsten Kamber, **nlong Zhou in New Developments in Approximation Theory (1999)

  8. No Access

    Article

    The yeast pheromone-responsive Gα protein stimulates recovery from chronic pheromone treatment by two mechanisms that are activated at distinct levels of stimulus

    The pheromone response ofSaccharomyces cerevisiae is mediated by a receptor-coupled heterotrimeric G protein. The βγ subunit of the G protein stimulates a PAK/MAP kinase cascade that leads to cellular changes pre...

    Jianlong Zhou, Michelle Arora, David E. Stone in Cell Biochemistry and Biophysics (1999)

  9. No Access

    Article

    Equivalence of Integral Means

    Let Aρf and Lρf be the integral means of f on a ball Bρ and its sphere, respectively. Frequently they are regarded as a bridge because of the smoothness. In this paper we will investigate their equivalence. More ...

    Tingfan **e, **nlong Zhou in Results in Mathematics (2001)

  10. No Access

    Chapter and Conference Paper

    Hybrid Focal Region-Based Volume Rendering of Medical Data

    In this paper we advocate the use of a hybrid focal region-based volume renderer that offers an alternative for visualization of internal structures of medical image data. We describe this promising technique ...

    Jianlong Zhou, Manfred Hinz, Klaus D. Tönnies in Bildverarbeitung für die Medizin 2002 (2002)

  11. No Access

    Chapter and Conference Paper

    Distance Based Enhancement for Focal Region Based Volume Rendering

    This paper proposes a method to control the object enhancement in context region in focal region based volume rendering. The proposed method uses the distance as a factor to control the volume features in the ...

    Jianlong Zhou, Andreas Döring, Klaus D. Tönnies in Bildverarbeitung für die Medizin 2004 (2004)

  12. No Access

    Chapter

    Improving Corporate Governance and Regulations of Power Abuse by the Controling Shareholder in China

    One of the most important agendas of the transition from a planned economy to a market-based economy is the separation of the company from the state. In this respect it must be said that the process in China i...

    Jianlong Zhou in Recovering Financial Systems (2006)

  13. No Access

    Article

    Multivariate refinement equation with nonnegative masks

    This paper is concerned with multivariate refinement equations of the type $$\varphi = \sum\limits_{\alpha \in \mathbb{Z}^s } {a(\a...

    Song Li, **nlong Zhou in Science in China Series A (2006)

  14. No Access

    Article

    Genetic and structural analyses suggest that a novel SPG3A mutation causes severe phenotypes of hereditary spastic paraplegia

    Hereditary spastic paraplegia (HSP) is a group of neurodegenerative diseases. The genotypes and phenotypes of HSP are extremely heterogenous. SPG3A is one of the identified genes underlying HSP, and codes for a G...

    Suqin Chen, Yan Zhou, Xunhua Li, Labu, Shuang Huang… in Chinese Science Bulletin (2006)

  15. No Access

    Article

    The Jackson interpolation operator and construction of functions

    We investigate the approximation behavior of the so-called Jackson interpolation operator. We will also study the K-functional deduced from this operator. As a result we obtain the asymptotic expression of this K

    Tingfan **e, **nlong Zhou in Acta Mathematica Hungarica (2006)

  16. No Access

    Chapter and Conference Paper

    Numerical Simulation of Vortex Shedding Frequency and the Oscillation Lift Based on Gas-liquid Two-phase Flow Around Circular Cylinders in the Vertical Pipeline

    Gas-liquid two-phase flow around circular cylinders based on RNG k - ε turbulence model is simulated with the finite volume method and the turbulence relationship caused by the shear and the bubble. The results s...

    Yunlong Zhou, Wenpeng Hong, Guangpei Wang… in Challenges of Power Engineering and Enviro… (2007)

  17. No Access

    Chapter and Conference Paper

    PSD Characteristics of Air-water Two-Phase Cross Flow Based on Pressure-difference Fluctuation Signal

    The alternating vortex will shed from the circular cylinder when air-water two-phase fluid flows across it, and the pressure-difference fluctuates in its two sides. The fast dynamic response pressure-differenc...

    Wenpeng Hong, Yunlong Zhou, Dong Deng in Challenges of Power Engineering and Environment (2007)

  18. No Access

    Article

    Lower bounds of some singular integrals and their applications

    Let \({\beta > 1}\) and $${f \in C(\...

    Tingfan **e, **nlong Zhou in Archiv der Mathematik (2007)

  19. No Access

    Article

    Biological effects of low-energy C ion implantation on sesame (Sesamum indicum L.)

    Field cultivation experiments on white sesame (Sesamum indicum L.) seeds implanted with low-energy C ion showed that different dosages of C ion implantation produce different biological effects. Sesame plants in ...

    Lan Zhang, Hanchao Jia, Tian Fang, Yunlong Zhou, Ying Su in Frontiers of Biology in China (2007)

  20. No Access

    Article

    Biodiversity conservation in a fast-growing metropolitan area in China: a case study of plant diversity in Bei**g

    As the capital of China, Bei**g has experienced extensive urbanization in the past two decades. To explore the effect of urbanization on plant diversity, we investigated the vascular plant diversity of the wh...

    Guangmei Wang, Gaoming Jiang, Yunlong Zhou, Quanru Liu… in Biodiversity and Conservation (2007)

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