Jiang P.,University of Sichuan |
Jiang P.,Yulin College |
Zhang J.-Z.,University of Sichuan
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | Year: 2015
Image Quality Assessment (IQA) is widely used in digital image processing, and No Reference IQA (NR-IQA) has become the research focus recently. This paper proposes an NR-IQA method based on local structure, which chooses strong structure areas by using local gradients, and assesses the quality of image by utilizing the Maximum Local Gradients (MLG) of strong structure areas. The main novelties are: pixel's quality assessment based on MLG; whole image quality based on strong edge points' quality. The proposed method can assess noise image and blur image at the same time, and the score of the proposed method is smaller when the distortion is more serious. The results show that the proposed no-reference method for the quality prediction of noise and blur images has a comparable performance to the leading metrics available in literature. © 2015, Science Press. All right reserved.
Xie Y.,Yulin College
Lecture Notes in Electrical Engineering | Year: 2013
This paper generates some insights into consumer preferences for wine bottle design. This can be studied from different attributes, such as shape, picture, country of origin, closure, label information, and volume. By applying conjoint analysis, an interesting finding is that the shape for wine bottle design is of least importance, and country of origin is perceived as the most important attribute in this study, which has received little evidence in previous research in the field of wine packaging design. Therefore, the results in this study have some implications for wine bottle designers and wine marketers. © 2013 Springer-Verlag.
Wei F.,Yulin College
Advanced Materials Research | Year: 2014
The foundation backfill materials with pulverized coal ash and admixture gypsum fly ash were studied. The laboratory experiments were designed to determine its compaction characteristics, compressibility, intensity and bearing capacity of foundation with different mixture ratio. Dry density and strength property of fly ash with different water content were analysed. The result shows that the modulus, strength and foundation bearing capacity all have been greatly improved when gypsum was added into fly ash The proper mix proportion of the gypsum fly ash is very suitable for engineering application and this research provides a scientific reference for the similar projects. © (2014) Trans Tech Publications, Switzerland.
Liu X.,Shaanxi Normal University |
Han Z.-P.,Shaanxi Normal University |
Han Z.-P.,Yulin College |
Wang Y.-L.,Shaanxi Normal University |
And 2 more authors.
Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences | Year: 2011
Interactions of three iridoid glycosides extracted from Cornus officinalis Sieb. et Zucc. (CIG) with protein were simultaneously explored by on-line dialysis sampling coupled with high-performance liquid chromatography (DS-HPLC). Three main compounds in CIG were unequivocally identified as loganin, sweroside and cornuside by comparing their tR, MS data and UV spectra with those of reference compounds. Dialysis recoveries and quantitative characteristics of DS-HPLC for three iridoid glycosides were determined. Recoveries of dialysis sampling ranged from 73.9 to 91.7% with the RSD below 3.0%. Based on the determination of concentrations before and after interaction with human serum albumin (HSA), the binding parameters of loganin, sweroside and cornuside with HSA were obtained and the binding mechanisms were investigated. © 2011 Elsevier B.V.
Yan W.-J.,Yulin College
Fangzhi Gaoxiao Jichukexue Xuebao | Year: 2011
L 1-solutions of the following two-direction refinement equations is studied:(equation) where α are constant real number and α>l,β o<···<β N are also real numbers. It was proved that the vector space of all L 1-solutions of the above equation is at most 1-dimensional by the Fourier techniques and iterated function systems. The sufficient and necessary conditions for the existence of nontrivial L 1-solutions of the two-direction refinement equation as well as for the nonexistence of such solutions are given. Moreover, it is easy for verification.