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Qinhuangdao, China

Yanshan University is a university in Qinhuangdao, Hebei, China under the provincial government. It has student population of 38,000 and a staff population of 3000 .The origin of Yanshan University can be traced back to the Harbin Institute of Technology founded in 1920. In 1958, the Department of Heavy Machinery of HIT and its related specialties moved to the strategic industrial town of Fulaerji, Qiqihar in Northeast China's Heilongjiang Province and was renamed the School of Heavy Machinery of HIT. In 1960, the school became independent as the Northeast Heavy Machinery Institute, and in 1978, it was accredited as one of the eighty-eight national key institutions of higher learning. Starting in 1985, it began to relocate southward to the historic seaside city of Qinhuangdao in Hebei Province and completed the migration in 1997 when it was accredited by the former State Education Commission to adopt the present name of Yanshan University .The YSU campus covers an area of 5,000 mu with a total construction area of nearly one million square meters. At present, the university has a faculty and staff of 3000, including 2,000 teachers, of which 326 are professors and 422 are associate professors. The university has a student population of 38,000.YSU has five postdoctoral research stations, six disciplines of 35 subdisciplines conferring doctoral degrees, 13 disciplines of 80 subdisciplines conferring master degrees, 16 masters of engineering programs, one Master of Public Administration program, one Master of Business Administration program, as well as 60 undergraduate programs. With such a wide range of programs, YSU has become a multiversity with emphasis laid on engineering studies and importance attached to liberal arts, science, economics, management, law and education.YSU consists of twenty-one colleges and schools. YSU runs five national key disciplines, four key disciplines of national defense, thirteen key provincial disciplines, one key national laboratory, thirteen key provincial laboratories and engineering centers.YSU is known for its world-renowned achievements in the development of whole-set heavy machinery and equipment, the theory and technology of parallel robots, the technology of fluid transmission and electro-hydraulic servo-systems, the technology and equipment of precision plasticity figuration, technology of thermal treatment of big forging, the technology of mega amorphous bodies, metastable materials and technology, the theory and technology of industrial automation, etc.YSU has won seventeen national scientific and technological awards in a row since 1996, including three first-class China State Science and Technology Progress Awards, ten second-class Awards, two third-class Awards, one State Technology Invention Award, and one second-class National Natural science Award. The university has undertaken more than 300 national research projects, including those funded by the 973 Programs, the 863 Programs, as well as the National Natural science Foundation and the National Social science Foundation. In 1999, YSU established its high-tech park in the Qinhuangdao Economic and Technological Development Zone. The park was officially established by the Chinese Ministry of Science and Technology and Ministry of Education as a national university science park in September 2003, thus becoming one of the 34 national university science parks of its kind.The university also attaches great importance to international academic exchange and collaboration, and has conducted joint study and research programs with institutions from the United Kingdom, the United States, Canada, Norway, Germany, France, Italy, Ireland, Japan, Korea, etc.Qinhuangdao City in which YSU is located is a coastal resort city just 260 km northeast of Beijing. As one of the Class A tourist destinations in China, Qinhuangdao attracts visitors from China and abroad with the beginning of the Great Wall , the First Pass Under Heaven on the Great Wall, the summer resort Beidaihe Beach, the sandy Golden Beach at the Nandaihe area, the safari zoo, and other scenic spots which are all within easy access. Wikipedia.

Zhao X.,Yanshan University
Journal of hazardous materials | Year: 2011

The melamine-diethylenetriaminepentaacetic acid/polyvinylidene fluoride (MA-DTPA/PVDF) chelating membrane bearing polyaminecarboxylate groups was prepared for the removal of Ni(II) from wastewater effluents. The membrane was characterized by SEM, (13)C NMR and FTIR techniques. Quantitative adsorption experiments were performed in view of pH, contact time, temperature, the presence of Ca(II) and lactic acid as the controlling parameters. Adsorption kinetics and equilibrium were examined regarding the single Ni(II) system, binary Ni(II) and Ca(II) system and nickel-lactic acid complexes system. The desorption efficiency was also evaluated, and the adsorption mechanism was suggested based on experimental data. The results show that the sorption kinetics fit well to Lagergren second-order equation and the isotherms can be well described by Langmuir model. At 298 K, the second-order rate constant is calculated to be 4.171, 11.39, 6.203 cm(2)/(mg min) and the equilibrium uptake is 0.0264, 0.0211 and 0.0216 mg/cm(2) in the aforementioned three systems. The distribution coefficient of Ni(II) slowly decreases from 4.27 to 2.72, and the separation factor (f(Ni(II)/Ca(II))) increases from 3.10 to 8.46 when the initial Ca(II) concentration varies from 20 to 200mg/L. This reveals the chelating membrane shows more affinity for Ni(II) than Ca(II) ions. In the studied range of lactic acid concentration, Ni(II) uptake decreases with the maximum ratio of 10%. Chemical bonding (chelation) dominates in the adsorption process, and the negative ΔG° and ΔH° indicate the spontaneous and exothermic nature of adsorption. Crown Copyright © 2011. Published by Elsevier B.V. All rights reserved. Source

Hua C.-C.,Yanshan University | Ding S.X.,University of Duisburg - Essen
IEEE Transactions on Automatic Control | Year: 2011

The model following control problem is addressed for a class of nonlinearly interconnected systems with time delays. The subsystems are with multiple dead-zone actuators and mismatched time-varying disturbances. To deal with the multiple unknown dead-zone inputs, we decompose the system properly based on the input matrix. By using the adaptive method to compensate the unknown parameters, we design a new and simple memoryless controller. The stability of the resultant closed-loop error system is proved by employing a new Lyapunov Krasovskii functional. The designed controller is tolerant to any dead-zone inputs and general time delays. Finally, the simulations are performed and the results show the potential of the proposed method. © 2006 IEEE. Source

Gao F.,Yanshan University
Inorganic Chemistry | Year: 2010

Size dependence effects in semiconductor clusters have been a subject of extensive studies for the last two decades. However, it is still difficult to employ the existing theoretical models to give reliable results of energies for clusters in the whole nanometer region. Here we offer a new theoretical method for the quantum size effects based on the idea that the energy gap shift of the cluster arises from the sum of the surface effect shift and quantum effect shift parts. We express the effects through algebraic relations rather than through variational solutions of the wave equation, without the use of any special adjustable parameter. Results reveal for the first time that the shape of the energy gap shift curve is dominated by the surface energy shift. Our method can also predict quantitatively the size dependence of dielectric constant. The new theoretical findings in the ultrasmall (<1 nm) anatase TiO2and the silicon clusters cannot be explained using previous theories. © 2010 American Chemical Society. Source

Liu L.-Z.,Yanshan University
Advances in Information Sciences and Service Sciences | Year: 2012

In this paper, base on the data of Qinhuangdao port and Qinhuangdao GDP from 1995 to 2010, we analysis dynamic correlations between port logistics and regional economic development by vector auto-regressive (VAR) model. The results show that, Qinhuangdao port logistics and regional economic development consists of a mutual have long-term effect of dynamic linear system, but is different, that is, Goods growth is to promote the increase of the GDP throughput Granger causes, but the influence of the reverse is not significant. This shows that the port logistics development of Qinhuangdao city can improve economic growth. Source

Gao F.,Yanshan University
Applied Physics Letters | Year: 2011

A quantum confinement model for nanocrystals developed is extended to study for the optical gap shifts in core/shell quantum dots and nanowires. The chemical bond properties and gap shifts in the InP/ZnS, CdSe/CdS, CdSe/ZnS, and CdTe/ZnS core/shell quantum dots are calculated in detail. The calculated band gaps are in excellent agreement with experimental values. The effects of structural taping and twinning on quantum confinement of InP and Si nanowires are elucidated. It is found theoretically that a competition between the positive Kubo energy-gap shift and the negative surface energy shift plays the crucial role in the optical gaps of these nanosystems. © 2011 American Institute of Physics. Source

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