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Search Results: 1 - 10 of 119392 matches for " Wuyi Wang "
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A Study on Overseas Investment Opportunities of Chinese Iron and Steel Enterprises from the Perspective of Globalization Strategy*  [PDF]
Wuyi Wang, Caixia Zheng, Peng Liu
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.45011
Abstract:

The global steel industry is a highly internationalized industry, globalization strategy is the inevitable choice of Chinese steel enterprises to improve the international competitiveness, and many factors make it feasible for Chinese iron and steel enterprises to implement globalization strategy. This paper made an analysis on the overseas investment opportunities of Chinese steel enterprises from the perspective of globalization strategy, involving the resource-based commodity investment, the establishment of overseas production bases and R&D center, controlling trade channels and building strategic alliance, then sketched out the globalization strategy implementation framework of Chinese iron and steel enterprises.

Heavy Metals in Soil and Crops of an Intensively Farmed Area: A Case Study in Yucheng City, Shandong Province, China
Lin Jia,Wuyi Wang,Yonghua Li,Linsheng Yang
International Journal of Environmental Research and Public Health , 2010, DOI: 10.3390/ijerph7020395
Abstract: Yucheng City is located in northwestern Shandong Province, China, and is situated on the Huang-Huai-Hai Plain, the largest alluvial plain in China. In this study, 86 surface soil samples were collected in Yucheng City and analyzed for cation exchange capacity (CEC), soil organic matter (SOM), pH, available phosphorus (avail. P), phosphorus (P), aluminum (Al), and iron (Fe). These soils were also analyzed for ‘total’ chromium (Cr), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), mercury (Hg), cadmium (Cd), and lead (Pb), together with 92 wheat samples and 37 corn samples. There was no obvious heavy metal contamination in the soil and irrigation water. But the long-term accumulation of heavy metals in soil has lead to an increase of Ni, As, Hg and Pb concentrations in some of wheat and corn samples and Cd in wheat samples. Because of the numerous sources of soil heavy metals and the lower level of heavy metal in irrigation water, there is no significant relation between soil heavy metal concentrations and irrigation water concentrations. Cr, Ni were mainly from the indigenous clay minerals according to multivariate analysis. Little contribution to soil heavy metal contents from agricultural fertilizer use was found and the local anomalies of As, Cd, Hg, Pb in wheat and corn grain are attributed to the interactive effects of irrigation and fertilizer used. Aerial Hg, however may also be the source of Hg for soil, wheat and corn.
Environmental behaviors of selenium in soil of typical selenosis area, China

LI Yonghu,WANG Wuyi,LUO Kunli,LI Hairong,

环境科学学报(英文版) , 2008,
Abstract: Daba Mountain area is one of the two endemic selenosis areas in China,which may relate with the environmental behaviors of selenium (Se) in soil.This study focuses on the concentraion and distribution of Se and its relationships with some other elements in natural soil in the area.The average concentration of Se in Daba Mountain soils was 14.3 times higher than the value cited for natural soil background worldwide,suggesting that soils in the region were contaminated by the element.The finding was confir...
Water Sources and Their Protection from the Impact of Microbial Contamination in Rural Areas of Beijing, China
Bixiong Ye,Linsheng Yang,Yonghua Li,Wuyi Wang,Hairong Li
International Journal of Environmental Research and Public Health , 2013, DOI: 10.3390/ijerph10030879
Abstract: Bacterial contamination of drinking water is a major public health problem in rural China. To explore bacterial contamination in rural areas of Beijing and identify possible causes of bacteria in drinking water samples, water samples were collected from wells in ten rural districts of Beijing, China. Total bacterial count, total coliforms and Escherichia coli in drinking water were then determined and water source and wellhead protection were investigated. The bacterial contamination in drinking water was serious in areas north of Beijing, with the total bacterial count, total coliforms and Escherichia coli in some water samples reaching 88,000 CFU/mL, 1,600 MPN/100 mL and 1,600 MPN/100 mL, respectively. Water source types, well depth, whether the well was adequately sealed and housed, and whether wellhead is above or below ground were the main factors influencing bacterial contamination levels in drinking water. The bacterial contamination was serious in the water of shallow wells and wells that were not closed, had no well housing or had a wellhead below ground level. The contamination sources around wells, including village dry toilets and livestock farms, were well correlated with bacterial contamination. Total bacterial counts were affected by proximity to sewage ditches and polluting industries, however, proximity to landfills did not influence the microbial indicators.
The TMK Subfamily of Receptor-Like Kinases in Arabidopsis Display an Essential Role in Growth and a Reduced Sensitivity to Auxin
Ning Dai, Wuyi Wang, Sara E. Patterson, Anthony B. Bleecker
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0060990
Abstract: Mechanisms that govern the size of plant organs are not well understood but believed to involve both sensing and signaling at the cellular level. We have isolated loss-of-function mutations in the four genes comprising the transmembrane kinase TMK subfamily of receptor-like kinases (RLKs) in Arabidopsis. These TMKs have an extracellular leucine-rich-repeat motif, a single transmembrane region, and a cytoplasmic kinase domain. While single mutants do not display discernable phenotypes, unique double and triple mutant combinations result in a severe reduction in organ size and a substantial retardation in growth. The quadruple mutant displays even greater severity of all phenotypes and is infertile. The kinematic studies of root, hypocotyl, and stamen filament growth reveal that the TMKs specifically control cell expansion. In leaves, TMKs control both cell expansion and cell proliferation. In addition, in the tmk double mutants, roots and hypocotyls show reduced sensitivity to applied auxin, lateral root induction and activation of the auxin response reporter DR5: GUS. Thus, taken together with the structural and biochemical evidence, TMKs appear to orchestrate plant growth by regulation of both cell expansion and cell proliferation, and as a component of auxin signaling.
A PRELIMINARY STUDY ON LEACHING OF SELENIUM IN THE SOILS OF CHINA
我国土壤中硒的淋溶

Wang Wuyi Wang Dacheng Wang Weizhong Wang Lizhen,
王五一
,王大成

地理研究 , 1992,
Abstract: It has been shown by study on eight typical soils of China that leaching of Se is positively related to pH, negatively related to content of clay particals, A12O3, R2O3and Se-absorption coefficient in soils. These factors result in the differences of Se leaching in various soils. The percentage of Se leaching in different soils was estimated according to the precipitation condition in local area respectively. It is shown that percentage of Se leaching is affected by physical and chemical parameter of soil such as organic matter etc.,and ranged from 0.35% to 2.22%, in the order as: purplish soil>drab soil>dark brown earth>chernozem>black soil>red earth = laterit soil>sierozem. Comparing the leaching of Se in Se deficient soil-Keshan disease area with Se sufficient soil-disease free area, Se leaching in soil is signifcantly higher in low Se area than that in non-disease area. Therefore, this may be one of the causation for low level of Se in soils of Keshan disease belt
The Hilbert-Type Integral Inequalities with a Homogeneous Kernel of -Degree
Zhong Wuyi
Journal of Inequalities and Applications , 2008,
Abstract: By introducing an integral operator, a norm with a weight function, and two pairs of conjugate exponents, we find the conditions for the Hilbert-type integral inequalities with a homogeneous kernel of -degree. We also prove that the constant factors in the inequalities are all the best possible. As the particular situations, some new inequalities with a homogeneous kernel and their other two forms are given. We extend some previous results.
A New Hilbert-Type Linear Operator with a Composite Kernel and Its Applications
Zhong Wuyi
Journal of Inequalities and Applications , 2010,
Abstract: A new Hilbert-type linear operator with a composite kernel function is built. As the applications, two new more accurate operator inequalities and their equivalent forms are deduced. The constant factors in these inequalities are proved to be the best possible.
A New Hilbert-Type Linear Operator with a Composite Kernel and Its Applications
Wuyi Zhong
Journal of Inequalities and Applications , 2010, DOI: 10.1155/2010/393025
Abstract:
A Hilbert-Type Linear Operator with the Norm and Its Applications
Zhong Wuyi
Journal of Inequalities and Applications , 2009,
Abstract: A Hilbert-type linear operator is defined. As for applications, a more precise operator inequality with the norm and its equivalent forms are deduced. Moreover, three equivalent reverses from them are given as well. The constant factors in these inequalities are proved to be the best possible.
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