Research of Chinese Handwritten Text Segmentation Algorithm

Zou Yingyong,Zhang Yongde,Cao Xinyan,Yu Guangbin 보안공학연구지원센터 2014 International Journal of Multimedia and Ubiquitous Vol.9 No.12

OCR is a complicated process, there are many factors that can influence the recognition rate. Early period people tried to optimize the classifier to obtain high recognition rate, but the premise is that there is only one character no matter print or handwritten. For the performance of classifier has been promoted a lot, recognition rate for single character is high enough for commercial use. With the development of the demand for handwritten text recognition, how to raise the recognition rate of OCR system becomes very important. Unlike OCR system for print which focus on classifier. The research of OCR system for handwritten text is mainly on character segmentation. Statistical analysis showed that the mistake made by missegment is more than the mistake made by classifier. This is decided by the feature of handwritten text. There are more randomness and the lines are not horizontal, besides that, handwritten Chinese characters are more like overlapped and the gaps between characters are smaller. So this is the difficulty of handwritten Chinese characters. In this paper, the mutil-step searching nonlinear line exaction algorithm the paper proposed is easy and the accuracy is high, which can tackle the some weaknesses of direct projection method and indirect projection.

Peat-accumulation models affected by the transgressionregression: a case study of mineralogy and geochemistry of the Permo-Carboniferous coals in the Lingshi Deposit, Qinshui Basin, China

Yu Zou,Fenghua Zhao,Dongna Liu,Yuanyuan Wang,Jianbo Chen 한국지질과학협의회 2018 Geosciences Journal Vol.22 No.5

Mineralogy and geochemistry of Nos.1, 9 and 10 coals in the Lingshi Deposit, Qinshui Basin, China, are investigated in this paper, using industrial analysis, total sulfur and forms of sulfur analyses, optical microscope, scanning electron microscope equipped with energy dispersive X-ray spectrometer, X-ray powder diffraction, X-ray fluorescence, and inductively coupled plasma-mass spectrometers. The results show that the minerals in coals are mainly kaolinite, nacrite, dickite, palygorskite, calcite, pyrite, anatase, dolomite, siderite and barite. Kaolinite of terrigenous origin is commonly discovered in No. 1 coal, which results in a high concentration of SiO2 (up to 6.81%) and Al2O3 (up to 8.42%); In the process of coalification, kaolinite could be converted into dickite and nacrite in Nos. 9 and 10 coal; Pyrite, the host of W, Tl, and As, and palygorskite in Nos. 9 and 10 coals are formed under the influence of the transgression. Besides, Nos. 9 and 10 coals, affected by transgression, are similar in the element contents and distribution patterns with positive δYN anomalies (up to 1.44). However, No. 1 coal, normalized by No. 10 coal, is characterized by high concentration coefficients of Co, Ni, Sb, Li, Be, Sc, V, Cu, Ga, Rb, Cs, Ba, Pb and Th (2 < CC < 10), and these elements are derived from clay minerals of terrigenous origin, which means that Permo-Carboniferous coals in the Lingshi Deposit show the evolution of a regressive process in general.

Establishment of a model to evaluate the nutritional quality of Bombyx mori Linnaeus (Lepidoptera, Bombycidae) pupae lipid based on principal components

Yu-Xiao Zou,Teng-Gen Hu,Ying Shi,Jun Liu,Li-Xia Mu,Yang Xiao,Sen-Tai Liao 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.4

Silkworm pupae are a source of edible lipid with a high content of unsaturated fatty acids (UFAs) (70% of total lipid content) and are becoming a focus of pharmaceutical and dietary research in the functional oil field. To study the nutritional value of different silkworm strains, principal component analysis (PCA) was used to establish a mathematical model and cluster analysis on silkworm pupae lipid (SPL) in 90 strains based on Z-score. Single-factor correlation analysis indicated that the PUFAs content was significantly positively correlated with the α-linolenic acid (ALA) (ρ=0.98) and negatively correlated with the oleic acid (OA) (ρ=−0.73) contents, and comprehensive of principal components mathematical model (PC =0.148ZX1 +0.00 2ZX2 −0.197ZX3 −0.338ZX4 +0.220ZX5 +0.304ZX6 +0.314ZX7, ZXi is the standard score (Z-score) of X1, which was calculated as follow: ZXi = (Xi −−X )/S, where X1: palmitic acid, X2: palmitoleic acid, X3: stearic acid, X4: OA, X5: linoleic acid, X6: ALA, X7: PUFAs.−X is the arithmetic mean content of variable i, and S is the standard deviation of variable i for all samples included in the analysis.) showed the amount of ALA and PUFAs were the key factors determining the nutritional value of the pupae lipid. Cluster analysis on the composite scores calculated by the model of the principal component divided the 90 strains into three groups. A cluster of 6 strains (XHR, XIFF, ZX, YT, YO and BTN) with the best nutritional value was characterized by high contents of ALA and PUFAs and a low content of oleic acid.

A New Large-Scale Plane-Strain Permeameter for Gravelly Clay Soil under Stresses

Yu-Hua Zou,Qun Chen,Chang-Rong He 대한토목학회 2013 KSCE JOURNAL OF CIVIL ENGINEERING Vol.17 No.4

A large-scale plane-strain permeameter was designed to investigate the hydraulic characteristics of gravelly clay base soil and a filter under various stresses and different water heads. The apparatus provides a specimen size about 80 cm long, 40 cm wide and 40cm high. It is equipped with a horizontal and vertical loading system with capacities of 1000 kN in the horizontal direction and 2000kN in the vertical direction and a water pressure system which can provide water head up to 300 m. The components of the planestrain permeameter are described in detail in this paper. The performance of the permeameter is demonstrated through a group of tests on specimens combining gravelly clay soil and a filter.

Physicochemical Properties and Antioxidant Activities of Melanin and Fractions from Auricularia auricula Fruiting Bodies

Yu Zou,Wenzhong Hu,Kun Ma,Mixia Tian 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.1

Fractions I and II from Auricularia auricula fruiting body (AAFB) melanin were separated using Sephadex G-100 column chromatography and their physicochemical properties and antioxidant activities were investigated. Molecular mass values of the fractions were 384 and 47 kDa, respectively. Fraction I exhibited lower L*, a*, and b* values than AAFB melanin and fraction II. AAFB melanin and fractions possessed the same solubility and spectroscopic properties, which were similar to the properties of other melanin. Elemental composition analysis revealed that the main component of AAFB melanin and fractions was pheomelanin. AAFB melanin and fractions, particularly fraction II, exhibited strong antioxidant activities based on Fe2+-chelating, DPPH radical scavenging, and superoxide radical scavenging activities.

Diffusion mechanism of deep shale gas and its carbon isotope fractionation: a combined simulated and mathematical analysis

Yu Zou,Guojian Wang,Cheng Tao,Rui Zhou,Shangqing Zhang,Dongna Liu,Xiaohui Lin,Xuying Zheng 한국지질과학협의회 2023 Geosciences Journal Vol.27 No.3

Unlike the release pressure process in shale gas exploitation, in this study, the concentration diffusion process is deeply discussed under constant temperature-pressure conditions, which aims to evaluate the preservation conditions of shale gas reservoirs in combination with isotopic fractionation characteristics. The isobaric diffusion experiment emphasized that decreasing pressure can lead to enhanced diffusion and isotope fractionation. The established mathematical model not only confirms the results of the simulating experiment, but also suggests that the contributions of Fick, Knudsen and surface diffusion to the migration of methane (including 12CH4 and 13CH4) vary in the geological evolution of shale reservoirs, which are mainly controlled by the pore system and gas pressure. Based on the analysis of specific samples of Longmaxi shale (r = 11.7 nm) and Niutitang shale (r = 1.3 nm), we propose that: 1) high pressure condition (> 20 MPa) can significantly limit Knudsen diffusion, which is the reason for reducing the total diffusion coefficient (DTotal) and isotope fractionation, while low pressure (< 10 MPa) and small pore radius (ca. 1 nm) can strengthen the fractionation; 2) pore connectivity and heterogeneity can lead to an order of magnitude change in DTotal, while the influence of temperature is relatively small. According to the mathematical model, it can be expected that enhanced dissipation intensity and isotope fractionation of shale gas may occur in the process of basin uplift and pressure relief, which can potentially be used for the evaluation of reservoir preservation.

Helical SiO2 Film for Indiscriminatively Circular Polarization Handedness Inversion

Zou, Yu,Kim, Jin Joo,Kim, Young Deung,Kim, Ji Bum,Hwangbo, Chang Kwon Korean Physical Society 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.58 No.4

A MULTIPLICITY RESULT FOR FOURTH-ORDER BOUNDARY VALUE PROBLEMS VIA CRITICAL POINTS THEOREM

Zou, Yu-Mei The Korean Society for Computational and Applied M 2011 Journal of applied mathematics & informatics Vol.29 No.5

In this paper, using B.Ricceri's three critical points theorem, we prove the existence of at least three classical solutions for the problem $$\{u^{(4)}(t)={\lambda}f(t,\;u(t)),\;t{\in}(0,\;1),\\u(0)=u(1)=u^{\prime}(0)=u^{\prime}(1)=0,$$ under appropriate hypotheses.

Polarization Conversion of Anisotropic SiO_2 Columnar Thin Films Prepared by Using Oblique Angle Deposition

Yu Zou,김진주,박용준,김지범,김영덕,황보창권 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.58 No.42

The linear polarization conversion reflectance (PCR) from p(s)- to s(p)- polarization in a [prism/anisotropic SiO_2 thin film/air] configuration prepared by using an oblique angle deposition was measured and analyzed by using 4 × 4 matrices. The highest PCR of 85.4% was obtained at an incident angles of θ = 58.5˚ and Ψ = 90˚, i.e., the incidence plane was perpendicular to the deposition plane of the SiO_2 thin film. The principal indices of anisotropic SiO_2 thin films were derived from the PCR measurements at Ψ = 90˚, and the mechanism of strong PCR under total internal reflection condition is discussed. Also, we found that the [prism/anisotropic SiO_2 thin film/air] configuration could be used as broadband and narrowband PCR filters.

Geometrical and Magnetic Properties of Vanadium Clusters Supported on Graphene

Yu Zou,Chang Yong Zhan,Jian-Chun Wu,Li-Ping Zhou,Hai-Xia Da 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.2

We report ab-initio calculations of vanadium-cluster Vn(n = 2−5) adsorption on graphene sheets. Geometrical and magnetic properties of various adsorption configurations are studied using firstprinciples density-functional theory with the generalized gradient approximation. The geometrical and magnetic properties of vanadium clusters are found to be size-dependent, and the supported graphene sheet could influence the formation of the vanadium clusters. Low-dimensional Vn cluster configurations could be easily formed when they are absorbed on a graphene sheet, and the combined Vn-graphene systems exhibit a nonmagnetic state, which is the most stable magnetic configuration. Our calculations for the geometrical and the magnetic moment properties of Vn-graphene systems may be of interest for some nanotechnological applications.