Qiqihar University is an institution for higher education, founded in 1953 and located in Qiqihar city of Heilongjiang province in northeast China. Its campus has an area of 1.15 km². It is the only provincial, comprehensive, regular institution of higher learning in the western part of Heilongjiang Province. It is located beside Labor Lake in the city of Qiqihar. Covering an area of 1.25 square kilometers with a building area of 720,000 square meters, it is nicknamed 'The Round Lake University' and has been awarded titles such as 'Garden University' and 'Provincial Model Unit' by the Heilongjiang Provincial Committee of the CPC and the People's Government of Heilongjiang Province. Wikipedia.
Di K.,Qiqihar University
Acta Crystallographica Section E: Structure Reports Online | Year: 2010
In the title compound, C11H12N2O 2·C7H5NO4·C 2H6O, the (2S*)-2-amino-3-(1H-indol-3-yl)propionic acid is present in the zwitterionic form. In the crystal structure, 2-amino-3-(1H-indol-3-yl)propionic acid molecules and pyridine-2,4-dicarb-oxylic acid molecules are linked through strong intermolecular O - H⋯O and N - H⋯O hydrogen bonds, forming layers parallel to (100). The layers are linked through the ethanol molecules via somewhat weaker intermolecular O - H⋯O and N - H⋯O hydrogen bonds, forming thus a three-dimensional network. Weak C - H⋯O and N - H⋯N hydrogen bonding and π-π interactions between the aromatic rings are also present. © 2010.
Zhang W.-G.,Qiqihar University
Acta Crystallographica Section E: Structure Reports Online | Year: 2011
The title hydrazone compound, C14H10ClFN 2O, adopts an E configuration about the C=N double bond. The dihedral angle between the two substituted benzene rings is 11.6 (2)°. The F atom is disordered over two sites with occupancies of 0.488 (2) and 0.512 (2). In the crystal, molecules are linked through intermolecular N - H⋯O hydrogen bonds, forming chains along the a axis. C - H⋯F and C - H⋯O interactions also occur.
Wu W.,Qiqihar University |
Tian L.,Qiqihar University
Applied Clay Science | Year: 2013
In the present work the formulation and morphology of novel kaolin-filled rubber composites were investigated. The kaolin-filled rubber composites were obtained by filling rubbers such as natural rubber (NR), styrene-butadiene rubber (SBR), polybutadiene rubber (ER), nitrile butadiene rubber (NBR), ethylene propylene diene monomer (EPDM), chloroprene rubber (CR) and methyl vinyl silicon rubber (MVQ). The best formulation of filled rubbers was determined by determining the mechanical and thermal properties of the composites. Structural characterization was carried out by using infrared spectroscopy (IR) and a polarizing light microscope (PLM). The kaolin/rubber composites have outstanding mechanical and thermal properties except elongation at break, and good compatibility. The best formulation of kaolin filled rubbers is respectively 40 parts per hundred rubber (phr), 40 phr, 50 phr, 40 phr, 50 phr, and 50 phr for NR, SBR, BR, NBR, EPDM and CR. Kaolin can replace silica in the specific rubber products, and is suitable to reinforce more steric rigid rubber. © 2013 .
Zhang H.,Qiqihar University
Advanced Materials Research | Year: 2011
Path planning is one of the most important and challenging problems of mobile robot. It is one of the keys that will make the mobile robots fully autonomous. In this paper, we summarized the application of soft computing approaches in path planning for mobile robot. Finally the future works of path planning for mobile robots are prospected. © (2011) Trans Tech Publications.
Shi C.-W.,Qiqihar University
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2012
Treatment of deinking waste water with coagulation process was studied. The coagulants type, coagulants dosage, coagulants aid dosage, and pH were determined by orthogonal experiment. The results showed that the coagulants type, coagulants dosage, coagulants aid dosage are the key factors in coagulation of deinking wastewater, the treatment efficiency is the highest when PAC dosage is 200 mg/L and coagulants aid dosage is 3 mg/L.
Geng R.,Qiqihar University
Advanced Materials Research | Year: 2011
The colony intellectual behavior performed by many organisms in nature can solve various kinds of problems on scientific and technological research. Bees are a socialized insect colony, which perform different types of activities according to their different divisions of labor, and achieve information sharing and exchanges among the bee colony to find the optimal solution for problems. According to this characteristic, researchers have proposed the algorithm of bee colony for solving combinatorial optimization problems. In this paper, it will describe the implementation process of such an image segmentation algorithm, and the result shows that this method is a potential image segmentation algorithm. © (2011) Trans Tech Publications.
Yan X.,Qiqihar University
Nuclear Engineering and Design | Year: 2016
The concentrations of thorium (232Th) in soil from a uranium mill tailings repository in South China were analyzed. The results showed that all the soil samples were acidic and the concentrations of 232Th in all the soil samples were more than the natural radionuclide content in soil of China. Through the field investigation, twelve kinds of dominant plants were discovered. The total quantity of 232Th in the whole plant is highest in rice flat sedge. We also found that Miscanthus floridulus has the greatest transfer factor (TF) for 232Th, rice flat sedge has the greatest bioconcentration factor (BF) for 232Th. At the mean time, M. floridulus has the greatest phytoremediation factor (PF) for 232Th. On the basis of the above conclusions and the definition for hyperaccumulator, rice flat sedge and M. floridulus could be the candidates of phytoremediation for radionuclide 232Th in the soil. © 2016 Elsevier B.V. All rights reserved.
Fan H.Y.,Qiqihar University
Advanced Materials Research | Year: 2011
Modern educational technology is widely used in college, modern educational technology application develop from simple slideshows, projection to the multimedia and network teaching, long-range education teaching, ect. The application of multimedia and network technology have positive significance in the teaching reform of cultivating student's quality , and skill training, and the creative thinking ability . Modern multimedia educational technology university plays an important role in promoting the level of teaching work and improving the quality of the education. The process of education and teaching which implements the mathematics education teaching through the application of modern educational technology curriculum, can improve math courses and teaching quality effectively. This paper explores the truth than using the modern education technology to improve education quality of teaching mathematics course. To realize mathematics teaching from the optimization, and extensive mathematics curriculum multimedia teaching, and explore the new mathematics curriculum teaching network technology actively, this paper discussed the application of multimedia technology to improve education in modern mathematics curriculum teaching quality. © (2011) Trans Tech Publications.
Miao F.,Qiqihar University |
Tao B.,Qiqihar University
Electrochimica Acta | Year: 2011
The use of silicon microchannel plates (MCP) modified with nickel-palladium (Ni-Pd) nanoparticles by electroless plating was studied for the electrocatalytic oxidation of methanol and ethanol by cyclic voltammetry and chronoamperometry in alkaline media. The electrocatalyst was characterized by EDS, SEM and cyclic voltammetry, and the effective parameters on electrocatalytic oxidation of the alcohol, i.e. the concentration of KOH and alcohol, medium temperature and working potential limit in anodic direction were investigated. The modified electrode shows a superior electrooxidation performance with the operating temperature increasing and a strong current response to methanol and ethanol even during long-term oxidation of alcohol. All results show that the Ni-Pd/Si-MCP nanocomposite electrode is very attractive for integrated fuel cell applications. © 2011 Elsevier Ltd. All rights reserved.
Zheng Y.,Qiqihar University
Physica A: Statistical Mechanics and its Applications | Year: 2013
The ideal gas has been reinvestigated in the framework of Tsallis nonextensive statistics, which can be called nonextensive gas. According to the modified thermodynamic relationships, and applying the nonextensive gas model to analyze actual gas, the relationship between the nonextensive parameter and the second virial coefficient can be deduced. On the other hand, this coefficient can also be expressed as the integration of interaction potential between the molecules of actual gas. This indicates that the nonextensive parameter may be related to the interaction potential. Our further analysis to the relation seems to imply that the nonextensive parameter is irrelevant to the thermodynamic temperature of the gas. © 2013 Elsevier B.V. All rights reserved.