Kunming, China
Kunming, China

Kunming University 昆明大学, founded in 1984, is Yunnan's only comprehensive professional university approved by the Ministry of Education of the People's Republic of China.Kunming University has 3 campuses with a total area of 499 mus. The total value of teaching and scientific research equipment is 40,560,000 Yuan. The university library collection stands out among the school's resources, containing more the 462,000 volumes. In addition, the university has founded three training and experiment bases along with over 30 first-class laboratories, including the simulated tour guide laboratory, the security investment laboratory and the numerical control technology laboratory. Wikipedia.

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Li D.-P.,Kunming University
Proceedings - 2016 International Conference on Information System and Artificial Intelligence, ISAI 2016 | Year: 2016

In order to solve the shortcoming of support vector regression, passenger capacity prediction based on least squares support vector regression with ant colony optimization algorithm is proposed in this paper. Ant colony optimization algorithm is used to select the parameters of least squares support vector regression. Highway passenger capacity data of Anhui province from 2000 to 2011 are applied to testify the passenger capacity forecasting performance of ACO-LSSVR, among which the passenger capacity data from 2000 to 2009 are used to create the training samples and the passenger capacity from 2010 to 2011 are used as the testing samples. The testing results show that the forecasting ability for highway passenger capacity of ACO-LSSVR is better than those of LSSVR and SVR. © 2016 IEEE.

Yang J.,University of Houston-Victoria | Yang J.,Kunming University
International Journal of Production Research | Year: 2013

This study aims to investigate how different knowledge-management processes (i.e. knowledge acquisition and dissemination) affect the manufacturers performance in collaborative economic exchanges with their suppliers. Drawing upon the knowledge based view and transaction cost economics, this study proposes that knowledge-management processes are positively related to the performance of the manufacturers in a collaborative buyer-supplier relationship. It also posits that this link is stronger when the levels of supply-chain integration and relational stability are higher rather than lower. The findings of this study show strong support for these propositions. Theoretical and practical contributions of this study are also addressed. © 2013 Taylor & Francis Group, LLC.

Zou X.J.,Kunming University
Dong wu xue yan jiu = Zoological research / "Dong wu xue yan jiu" bian ji wei yuan hui bian ji | Year: 2012

Originally grown and produced in southern of Yunnan, China, Pu-erh tea has a long history and carries rich cultural connotations. Consumption of Pu-erh has been thought to possess numerous health benefits including weight-loss, lowering of blood glucose levels, and preventing cardiovascular diseases. Research on humans, rodents, and cell lines have each confirmed that Pu-erh tea indeed displays weight-loss and blood lipid lowering effects. The main bioactive components, such as theabrownin (TB), polysaccharides, polyphenols, and statins, may down-regulate the biosynthesis of fat and up-regulate the oxidation of fat to cut weight and reduce the content of lipids in blood. Here, we summarize current progress on understanding the mechanisms and bioactive components of Pu-erh's weight-cutting effects as well as highlighting current weaknesses in the field in order to suggest possible solutions for future research on Pu-erh tea.

Feng G.,Kunming University
Applied Mechanics and Materials | Year: 2013

The properties of municipal solid waste is important to design and construction the landfill. In this paper, research the properties of municipal solid waste apply the indoor test and consulting literatures. The results showed that the density of Chongqing municipal solid waste is 430 kg /m3 ~610 kg /m3, the average is 470 kg /m3. The water content value of municipal solid waste in China is higher than foreign countries. The specific gravity of municipal solid waste in Chongqing is between 1.70~2.56. The porosity ratio of municipal solid waste in Chongqing between 1.0~4.0. The permeability order of magnitude is approximately 10-3 cm/ s. The properties of municipal solid waste includes density, water content, specific gravity and porosity ratio, these parameters will be used frequently when calculation and analysis[1]. And these parameters related to landfill capacity calculation, stability evaluation, leachate and landfill gas collection system design. Compare to the test of soil engineering properties, the properties test of municipal solid waste is difficult. The reasons are that (1) At different time and area, the municipal solid waste content will present great difference. For example, if the region use coal for heating, the ash content will higher than other regions. (2) Due to the composition uniformity and fifferent bury time, the organic matter degradation is different, so it is difficult to obtain representative samples. (3) The traditional soil sampling and test methods have rules to follow, in contrary, the municipal solid waste sampling and methods haven't accepted method. © (2013) Trans Tech Publications, Switzerland.

Wang B.,Kunming University | Lin Y.,Kunming University | Ju H.,Kunming University
Journal of Alloys and Compounds | Year: 2014

Ca9Y(PO4)7:Eu3+ phosphors have been prepared by solid state reaction. X-ray diffractometer, spectrofluorometer and UV-Vis spectrometer were used to characterize structural and optical properties of the samples. The results indicate that single-phase trigonal Ca9Y(PO4)7:Eu3+ can be obtained when the calcination temperature is higher than 1100 C. The optimum concentration of Eu3+-doped in the Ca9Y(PO4)7 is 13 mol%. The CIE chromaticity coordinate of Ca9Y(PO4) 7:0.13Eu3+ phosphor (0.650, 0.349) is close to National Television Standard Committee (NTSC) standard value for red phosphor (0.670, 0.330). © 2013 Elsevier B.V. All rights reserved.

Li W.,Kunming University
Asian Journal of Chemistry | Year: 2012

We reported a new relative stereochemical studies on the total synthesis of harringtonolide where the strategy relied upon the application of intermolecular Diels-Alder reaction (IMDA) to form the tricyclic skeleton proceeded very efficiently as we expected. Reductiveoxidation of the enolate was carried out with borane followed by hydrogen peroxide to give the desired crucial anti dihydroxy derivative. With the critical precursor in hand, the lactone was formed.

Chang J.-R.,Kunming University
Computers and Mathematics with Applications | Year: 2011

The exp-function method is applied to a system of nonlinear partial differential equations, and generalized solitary solutions with free parameters are obtained. The solution procedure is simple with the help of symbolic computation. © 2010 Elsevier Ltd. All rights reserved.

Yi Y.,Kunming University
Advanced Materials Research | Year: 2012

In order to promote the application of two dimensional barcode on mobile phone, this paper uses the popular Android technology, and researches QR code format and the decode process of the QR code; and then designs 2D bar code recognition system based on the decode library Zxing. After testing, it is proved that the system has good generality and low resource consuming, and the software of itself is only 140 K. © (2012) Trans Tech Publications, Switzerland.

Yang Y.,Kunming University
Applied Mechanics and Materials | Year: 2013

Development of an appropriate propagation channel model is an important step to design wireless body area network (WBAN). Because the human body has different body shapes (male, female and child), different tissues with different permittivity and conductivity (even the same person at the different age), and limbs positions and postures are changing all the time, this made the in-body channel modelling extremely difficult, if not impossible. There are few publications on implant communication channel models compared to wearable WBAN. In this paper, we present a literature survey on radio channel modelling for WBAN, especially the IEEE 802.15.6 models. The performance of the model is studied by simulating probability density functions (PDF) and cumulative distribution functions (CDF). Finally, we briefly outline some aspects of our future research works. © (2013) Trans Tech Publications, Switzerland.

Yi Y.,Kunming University
International Journal of Advancements in Computing Technology | Year: 2012

The problem of evaluating the software quality with linguistic information is the multiple attribute decision making (MADM) problems. In this paper, we investigate the multiple attribute decision making (MADM) problems for evaluating the software quality with linguistic variables based on intelligent computation. We utilize the linguistic correlate average (LCA) operator to aggregate the linguistic information corresponding to each alternative and get the overall value of the alternatives, then rank the software systems and select the most desirable one(s). Finally, an illustrative example for software quality evaluation is given to verify the developed approach and to demonstrate its practicality and effectiveness.

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