An edge coloring of hypergraph H is a function such that holds for any pair of intersecting edges . The minimum number of colors in edge colorings of H is called the chromatic index of H and is ...An edge coloring of hypergraph H is a function such that holds for any pair of intersecting edges . The minimum number of colors in edge colorings of H is called the chromatic index of H and is denoted by . Erdös, Faber and Lovász proposed a famous conjecture that holds for any loopless linear hypergraph H with n vertices. In this paper, we show that is true for gap-restricted hypergraphs. Our result extends a result of Alesandroni in 2021.展开更多
Understanding the hydrological processes of forest ecosystems in Tibetan Plateau is crucial for protecting water resources and the environment, especially considering that evapotranspiration is the most dominant hydro...Understanding the hydrological processes of forest ecosystems in Tibetan Plateau is crucial for protecting water resources and the environment, especially considering that evapotranspiration is the most dominant hydrologic process in most forest systems. SHAW, as a physically based, hydrological model, provides a useful tool for understanding and analyzing evapotranspiration processes. Using the measured data of a faber fir forest ecosystem in eastern Tibetan Plateau, this paper assessed the model performance in simulating evapotranspiration and variability and transferability of the model parameters. Comparison of the simulated results by SHAW to the measured data showed that SHAW performed satisfactorily. Based on analyzing the simulated results by the calibrated and validated SHAW, some ET characteristics of faber fir forest ecosys-tem in the eastern Tibetan Plateau were found: 1) Daily plant transpiration is low, and daily ET mainly comes from surface evaporation including canopy, litter and soil evaporation. Peak ET rate was approxi-mately 4mm/day, occurring around late July. 2) Solar radiation is the most important factor accounting for daily ET variation, while air temperature is the secondary, wind speed and air relative humidity are minor and soil water storage is the least important among all the related factors. 3) The ratio of annual ET to pre-cipitation for the faber fir forest ecosystem in eastern Tibetan Plateau is low (18%) compared with the other forest ecosystems owing to high-elevation, high atmospheric humidity and low annual temperature.展开更多
The main objective of this paper is to derive the upper bounds for the coefficients of functions in a subclass of analytic and bi-univalent functions associated with Faber polynomials. The consequences presented here ...The main objective of this paper is to derive the upper bounds for the coefficients of functions in a subclass of analytic and bi-univalent functions associated with Faber polynomials. The consequences presented here point out and correct the errors of some earlier results.展开更多
In this paper,we define new subclasses of bi-univalent functions involving a differ-ential operator in the open unit disc△={z:z∈C and|z|<1}:Moreover,we use the Faber polynomial expansion to obtain the bounds of t...In this paper,we define new subclasses of bi-univalent functions involving a differ-ential operator in the open unit disc△={z:z∈C and|z|<1}:Moreover,we use the Faber polynomial expansion to obtain the bounds of the coefficients for functions belong to the subclasses.展开更多
Background: In 1996, Wahaha, Danone and BNP (Hong Kong) jointly invested in and incorporated 5 companies to manufacture Wahaha brand products, including purified water and eight-treasure porridge. Wahaha holds 49% equ...Background: In 1996, Wahaha, Danone and BNP (Hong Kong) jointly invested in and incorporated 5 companies to manufacture Wahaha brand products, including purified water and eight-treasure porridge. Wahaha holds 49% equity interests in these companies, while Danone later became the dominant shareholder with a 51% stake after acquiring shares held by BNP in the aftermath of the Asian financial crisis. Danone then proposed to transfer the Wahaha brand to a joint venture but did not succeed. Subsequently, a trademark usage contract was signed by both parties instead. In the ensuing years, the Wahaha Group established non-JV companies in west China, central China and the Three Gorges reservoir area. These companies had RMB 5.6 billion of total assets as of December 31st, 2006 and made a net income of RMB 1.04 billion in that year. On April 3rd, 2007, Danone intended to force a deal by which it could acquire 51% equity interests in those non-JV companies for a sum of RMB 4 billion. Wahaha Chairman Zong Qinghou later complained that he and Wahaha fell into a trap set up by Danone. Both parties have since engaged in a lengthy "war of words", thereby arousing a grand debate on China's FDI policies.展开更多
文摘An edge coloring of hypergraph H is a function such that holds for any pair of intersecting edges . The minimum number of colors in edge colorings of H is called the chromatic index of H and is denoted by . Erdös, Faber and Lovász proposed a famous conjecture that holds for any loopless linear hypergraph H with n vertices. In this paper, we show that is true for gap-restricted hypergraphs. Our result extends a result of Alesandroni in 2021.
文摘Understanding the hydrological processes of forest ecosystems in Tibetan Plateau is crucial for protecting water resources and the environment, especially considering that evapotranspiration is the most dominant hydrologic process in most forest systems. SHAW, as a physically based, hydrological model, provides a useful tool for understanding and analyzing evapotranspiration processes. Using the measured data of a faber fir forest ecosystem in eastern Tibetan Plateau, this paper assessed the model performance in simulating evapotranspiration and variability and transferability of the model parameters. Comparison of the simulated results by SHAW to the measured data showed that SHAW performed satisfactorily. Based on analyzing the simulated results by the calibrated and validated SHAW, some ET characteristics of faber fir forest ecosys-tem in the eastern Tibetan Plateau were found: 1) Daily plant transpiration is low, and daily ET mainly comes from surface evaporation including canopy, litter and soil evaporation. Peak ET rate was approxi-mately 4mm/day, occurring around late July. 2) Solar radiation is the most important factor accounting for daily ET variation, while air temperature is the secondary, wind speed and air relative humidity are minor and soil water storage is the least important among all the related factors. 3) The ratio of annual ET to pre-cipitation for the faber fir forest ecosystem in eastern Tibetan Plateau is low (18%) compared with the other forest ecosystems owing to high-elevation, high atmospheric humidity and low annual temperature.
基金Supported by the National Natural Science Foundation of China(Grant No.11401041)
文摘The main objective of this paper is to derive the upper bounds for the coefficients of functions in a subclass of analytic and bi-univalent functions associated with Faber polynomials. The consequences presented here point out and correct the errors of some earlier results.
文摘In this paper,we define new subclasses of bi-univalent functions involving a differ-ential operator in the open unit disc△={z:z∈C and|z|<1}:Moreover,we use the Faber polynomial expansion to obtain the bounds of the coefficients for functions belong to the subclasses.
文摘Background: In 1996, Wahaha, Danone and BNP (Hong Kong) jointly invested in and incorporated 5 companies to manufacture Wahaha brand products, including purified water and eight-treasure porridge. Wahaha holds 49% equity interests in these companies, while Danone later became the dominant shareholder with a 51% stake after acquiring shares held by BNP in the aftermath of the Asian financial crisis. Danone then proposed to transfer the Wahaha brand to a joint venture but did not succeed. Subsequently, a trademark usage contract was signed by both parties instead. In the ensuing years, the Wahaha Group established non-JV companies in west China, central China and the Three Gorges reservoir area. These companies had RMB 5.6 billion of total assets as of December 31st, 2006 and made a net income of RMB 1.04 billion in that year. On April 3rd, 2007, Danone intended to force a deal by which it could acquire 51% equity interests in those non-JV companies for a sum of RMB 4 billion. Wahaha Chairman Zong Qinghou later complained that he and Wahaha fell into a trap set up by Danone. Both parties have since engaged in a lengthy "war of words", thereby arousing a grand debate on China's FDI policies.
