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Research of the Rice Image Segmentation Based on Color Linear Array CCD
Weifeng Zhong,Yaji Xie,Xiaoxi He 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.11
Using color linear array CCD (Charge Coupled Device) to collect the information of image has an important meaning in the research of the machine vision processing. It now becomes the focus of study on CCD image acquisition using FPGA (Field Programmable Gate Array) to implement color linear array CCD-driven design. The image acquisition and processing of the rice color sorter as the research background in this paper, by using FPGA to achieve the color linear array CCD driven control, as well as simulated with Quartus II 8.0. In order to be able to extract the color linear array CCD output useful information of the color images, through study the RGB model and the HSI (Huge, Saturation, Intensity) model of color space model, the HSI space mode is selected as the color image processing space model, and design the suitable algorithm-FCM (Fuzzy C-Means) clustering algorithm in HSI space for color image segmentation, through a fuzzy Toolbox in MATLAB to accomplish the FCM algorithm, at the same time, through the simulation realized the FCM algorithm. The simulation shows that the algorithm can segment the image useful information well.
2-레벨 스카이라인을 이용한 효율적인 리버스 스카이라인 질의 처리
이종혁(Li Zhong He),한아(Ah Han),박영배(Young Bae Park) 한국정보과학회 2011 정보과학회논문지 : 데이타베이스 Vol.38 No.5
리버스 스카이라인 질의는 정보 제공자가 정보를 필요로 하는 특정 고객에게 정보를 제공하기 때문에 적은 비용으로 높은 효율성을 얻을 수 있다. 리버스 스카이라인 기존 연구에는 RSSA, ERSL, RSIP기법이 있다. RSSA는 전처리 단계에 걸리는 시간이 길고 고차원 데이터 처리에 비효율적이다. ERSL과 RSIP는 RSSA에 비해 성능이 우수하지만 실행 시간이 대상 객체 수 변화에 유연하지 못하다. 본 논문에서 제안하는 RSTS(efficient Reverse Skyline query processing using Two-level Skyline) 기법은 리버스 스카이라인을 계산하기 위한 전처리 단계가 필요 없다. RSTS기법은 2-레벨 스카이라인을 이용하여 리버스 스카이라인 후보객체 수를 줄였으며, 윈도우 질의의 횟수를 줄이기 위하여 피 비교대상 객체의 수를 최소화 하였다. 실험 결과를 통하여 RSTS기법의 성능향상을 증명하였다. Reverse skyline query can achieve low-cost and high efficiency through providing the information only to a specific customer who would need it instead of all customers. Regarding reverse skyline method we can raise previous research-RSSA, ERSL and RSIP. However RSSA need long pre-processing time and it is inefficient in high dimension environment. As for the ERSL and RSIP, its performance better than the former, but the process time is unstable when the number of objects changes In this paper, we propose a new method - RSTS (Efficient Reverse Skyline Query Processing using Two-level Skyline) that does not require preprocessing. The RSTS minimized the number of the query by pruning reverse skyline candidate. And, the RSTS reduced the number of target objects in order to minimize the window query. Experimental results show that the performance of the proposed method is better than those of the existing ones.
이종혁(Li Zhong He),한아(Ah Han),박영배(Young Bea Park) 한국정보과학회 2011 정보과학회논문지 : 데이타베이스 Vol.38 No.3
최근 정보에 대한 고객의 수요는 “고객 중심의 서비스”에서 “정보 중심의 서비스”로 다양화 되고 있다. “정보중심의 서비스”는 정보제공자가 질의의 주체가 되어 자신을 필요로 하는 고객을 찾아 정보를 제공한다. 이런 서비스는 전체 고객이 아닌 특정된 고객에게만 정보를 제공하는 방식으로 적은 비용으로 높은 효율성을 얻을 수 있다. “정보 중심의 서비스”는 역 스카이라인 기법으로 처리한다. 역 스카이라인 기존 연구에는 RSSA(Reverse Skyline using Skyline Approximations)기법과 ERSL(Efficient Reverse Skyline)기법이 있다. 그러나 RSSA기법은 전처리 단계에 걸리는 시간이 길 뿐만 아니라 고차원 데이터 처리에 비효율적이다. ERSL기법은 RSSA기법에 비해 성능이 우수하지만 실행 시간이 대상 객체수 변화에 유연하지 못하다. 본 논문에서 제안하는 RSIP(Reverse Skyline query processing using Incremental Pruning)기법은 BBS(Branch and Bound Skyline) 기법을 기반으로 한 새로운 기법이다. RSIP기법은 역 스카이라인 후보객체수를 최대한 줄여 불필요한 질의 횟수를 감소하였다. 그리고 최종 역 스카이라인 판별 기준인 윈도우 질의 시간을 단축하기 위하여 피 비교 객체수를 대폭 줄였다. RSIP기법은 모든 조건에서 기존 기법들보다 향상된 성능을 나타낸다. 제안하는 기법이 기존 연구보다 효율적이라는 것을 실험 결과를 통해 보여준다. Recently, customer demand is changing from “Service of customer perspective” to “Service of information perspective”. “Services of information perspective” is meaning that information-providers play a leading role of the query to seek limited prospect who would need the information and provide it. This kind of services can achieve low-cost and high efficiency through providing the information only to specific customer who would need it instead of all customers. This service is processed by reverse skyline method. Regarding reverse skyline method we can raise two previous research-RSSA(Reverse Skyline using Skyline Approximations) and ERSL(Efficient Reverse Skyline). However RSSA need long pre-processing time and it is inefficient in high dimension environment. As for the ERSL, it’s performance better than the former, but the process time is unstable when the number of objects change. In this paper, we propose a new method - RSIP (Reverse Skyline query processing using Incremental Pruning) that is based on BBS (Branch and Bound Skyline). First, the RSIP minimized the number of the query by pruning reverse skyline candidate. Second, the RSIP significantly reduced the number of target objects in order to minimize the window query that identify the reverse skyline. The RSIP have improved the performance compare to the existing method in any conditions. Experimental results show that the performance of the proposed method is better than those of the existing ones.
He, Xiao-Qiong,Duan, Jia-Li,Zhou, Jin,Song, Zhong-Yu,Cichello, Simon Angelo Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.15
Faecal pH and cholate are two important factors that can affect colon tumorigenesis, and can be modified by diet. In this study, the effects of two Chinese traditional cooking oils (pork oil and canola/rapeseed oil) on the pH and the cholic acid content in feces, in addition to colon tumorigenesis, were studied in mice. Kunming mice were randomized into various groups; negative control group (NCG), azoxymethane control group (ACG), pork oil group (POG), and canola oil Ggroup (COG). Mice in the ACG were fed a basic rodent chow; mice in POG and COG were given 10% cooking oil rodent chow with the respective oil type. All mice were given four weekly AOM (azoxymethane) i.p. injections (10mg/kg). The pH and cholic acid of the feces were examined every two weeks. Colon tumors, aberrant crypt foci and organ weights were examined 32 weeks following the final AOM injection. The results showed that canola oil significantly decreased faecal pH in female mice (P<0.05), but had no influence on feces pH in male mice (P>0.05). Pork oil significantly increased the feces pH in both male and female mice (P<0.05). No significant change was found in feces cholic acid content when mice were fed 10% pork oil or canola oil compared with the ACG. Although Kunming mice were not susceptible to AOM-induced tumorigenesis in terms of colon tumor incidence, pork oil significantly increased the ACF number in male mice. Canola oil showed no influence on ACF in either male or female mice. Our results indicate that cooking oil effects faecal pH, but does not affect the faecal cholic acid content and thus AOM-induced colon neoplastic ACF is modified by dietary fat.
In vitro Removal of Deoxynivalenol and T-2 Toxin by Lactic Acid Bacteria
Zhong-Yi Zou,Zhi-Fei He,Hong-Jun Li,Peng-Fei Han,Xiao Meng,Yu Zhang,Fang Zhou,Ke-Pei Ouyang,Xi-Yue Chen,Jun Tang 한국식품과학회 2012 Food Science and Biotechnology Vol.21 No.6
Five strains of lactic acid bacteria were tested for their ability to remove deoxynivalenol (DON) and T-2toxin from MRS broth. The ability of Lactobacillus plantarum strain 102 (LP102) was the strongest among 5strains after incubation at 37oC for 72 h. The mode of removal was physical binding, rather than biotransformation. The abilities were not significantly different between when removing single toxin and when removing mixed toxins by viable cells of LP102. DON and T-2 toxin released from LP102 viable cell-toxin complexes were 28.22±1.55 and 35.42±2.02% of total bound toxins respectively after 3times of wash with posphate buffered saline, respectively,those were 4.59±0.86 and 5.59±1.47% after incubation with simulated gastric fluid (SGF) at 37oC for 4 h, and 6.86±0.81 and 9.04±1.13% after incubation with simulated intestinal fluid (SIF) at 37oC for 4 h, respectively.
He, Zhiguo,Zhong, Hui,Hu, Yuehua,Xiao, Shengmu,Liu, Jiarshe,Xu, Jin,Li, Guiyuen Korean Society for Biochemistry and Molecular Biol 2005 Journal of biochemistry and molecular biology Vol.38 No.5
Acidithiobacillus ferrooxidans is one of the most important bacterium used in bioleaching, and can utilize $Fe^{2+}$ or sulphide as energy source. Growth curves for Acidithiobacillus ferrooxidans under phosphate starvation and normal condition have been tested, showing lag, logarithmic, stationary and aging phases as seen in other bacteria. The logarithmic phases were from 10 to 32 hours for Acidithiobacillus ferrooxidans cultivated with normal cultivating condition and from 20 to 60 hrs for Acidithiobacillus ferrooxidans cultivated phosphate starvation. Differences of protein patterns of Acidithiobacillus ferrooxidans growing in case of normal or phosphate starvation were separately investigated after cultivation at $30^{\circ}C$ by the analysis of two-dimensional gel electrophoresis (2-DE), matrix-assisted laser desorption/ionization (MALDI)-Mass spectrometry. There were total 6 protein spots identified, which were Recombination protein recA, RNA helicase, AP2 domain-containing transcription factor, NADH dehydrogenase I chain D, Hyothetical protein PF1669, and Transaldolase STY3758. From the 6 identified protein spots, 3 proteins were found to be decreased in expression at the cultivating condition of phosphate starvation, while another three upregulated.
He, Zhi-guo,Hu, Yue-Hua,Zhong, Hui,Hu, Wei-Xin,Xu, Jin Korean Society for Biochemistry and Molecular Biol 2005 Journal of biochemistry and molecular biology Vol.38 No.3
Thiobacillus ferrooxidans is one of the most important bacterium used in bioleaching, and can utilize $Fe^{2+}$ or sulphide as energy source. Growth curves for Thiobacillus ferrooxidans have been tested, which show lag, logarithmic, stationary and aging phases as seen in other bacteria. The logarithmic phases were from 10 to 32 hours for Thiobacillus ferrooxidans cultivated with $Fe^{2+}$ and from 4 to 12 days for Thiobacillus ferrooxidans cultivated with elemental sulphur. Differences of protein patterns of Thiobacillus ferrooxidans growing on elemental sulphur and $Fe^{2+}$ separately were investigated after cultivation at $30^{\circ}C$ by the analysis of two-dimensional gel electrophoresis (2-DE), matrix-assisted laser desorption/ ionization (MALDI)-Mass spectrometry and ESI-MS/MS. From the 7 identified protein spots, 11 spots were found more abundant when growing on elemental sulphur. By contrast 6 protein spots were found decreased at elemental cultivation condition. Among the proteins identified, cytochrome C have been previously identified as necessary elements of electron-transfering pathway for Thiobacillus ferrooxidans to oxidize $Fe^{2+}$; ATP synthase alpha chain and beta are expressed increased when Thiobacillus ferrooxidans cultivated with $Fe^{2+}$ as energy source. ATP synthase Beta chain is the catalytic subunit, and ATP synthase alpha chain is a regulatory subunit. The function of ATPase produces ATP from ADP in the presence of a proton gradient across the membrane.