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This study was carried out to determine the factor of a separating system according to the pepper varieties and the absence of a card cleaner system. The pepper varieties of Jeokyoung and AR-Legend were transplanted on November 20, 2019 and tested on March 18, 2020 with a harvesting speed of 0.2 m·s<SUP>-1</SUP> for 10 pepper plants. The performance evaluation was determined by analyzing the separation efficiency of the peppers and the foreign matter mixing rate. The pepper harvester with a card cleaner showed a higher separation efficiency of the peppers compared to the pepper harvester without a card cleaner. The average separation efficiency of peppers on the pepper harvester with a card cleaner was higher at 13.5% for Jeokyoung and 1.9% for AR-Legend than that without a card cleaner. The mixing ratio of foreign materials on the pepper harvester with a card cleaner was lower at 8.7% and 2.5% for Jeokyoung and AR-Legend than that without a card cleaner, respectively. For the two-way ANOVA results according to the variety and the card cleaner, there was no effect on the separation efficiency of the peppers, but there was an effect on the foreign matter mixing rate.
3-Methylpentane (C6H14, CAS No. 96-14-0), isomer of hexane, is a colorless liquid originating naturally from petroleum or natural gas liquids. 3-Methylpentane has been used as a solvent in organic synthesis, as a lubricant, and as a raw material for producing carbon black. There is limited information available on the inhalation toxicity of 3-methylpentane, and the aim of this study was to determine its subacute inhalation toxicity. According to OECD Test Guideline 412 (subacute inhalation toxicity: 28-day study), Sprague Dawley rats were exposed to 0, 284, 1,135, and 4,540 ppm of 3-methylpentane for 6 hr/day, 5 days/week for 4 weeks via whole-body inhalation. Mortality, clinical signs, body weights, food consumption, hematology, serum chemistry, organ weights, and gross and histopathological findings were compared between control and all exposure groups. No mortality or remarkable clinical signs were observed during the study. No gross or histopathological lesions, or adverse effects on body weight, food consumption, hematology, serum chemistry, and organ weights were observed in any male or female rats in all exposure groups, although some statistically significant changes were observed in food consumption, serum chemistry, and organ weights. In conclusion, the results of this study indicate that no observable adverse effect level (NOAEL) for 3-methylpentane above 4,540 ppm/6 hr/day, 5 days/week for rats.
The environment in which a given genotype is grown may influence its grain quality characteristics. When varieties are $\times$ evaluated over numerous environments, a variety environment interaction usually is observed, but the relative magnitude of environmental(E), genetic(G), and G $\times$ E effects on quality is unclear. In order to determine relative contribution of genotype, environment, and G $\times$ E interaction to the variations observed in grain quality characteristics, 18 Korean wheat cultivars and experimental lines were evaluated in two environments in 1998 and 1999. Correlation coefficients between grain quality and agronomic characteristics were also estimated. The analysis of variance for the optical density obtained by reaction bet- ween gliadin and anti-gliadin polyclonal antibody (AGPab) indicated that gliadin content measured by Enzyme-Linked Immunosorbent Assay(ELISA) was significantly in- fluenced by environment and cultivar differences. The significant differences of year and year $\times$ location were also found. The ratio of the variances associated with environmental effects to the variances associated with genetic effect gave relatively greater influence of environmental factor on gliadin content. The different protein content from same genotype grown in different environment might be associated with degree of storage protein accumulations. Significant relationships between ELISA and protein content, yield, ten spike weight, and ten spike number were detected. Polyphenol oxidase (PPO) activity was significantly influenced by year, location, cultivar and year $\times$ location. The variance in grain PPO activities among growing years appeared larger than the variation produced by the cultivar examined. This suggested that the growing environment contributed more to variability in grain PPO concentration.
The wheat-rye translocations are world widely used in wheat breeding. Among the various forms of wheat-rye translocation, the 1RS (short arm of rye chromosome 1) translocations are the most widely used because of the valuable genes (e.g. biotic / abiotic resistance genes) introduced from rye. We have developed a new wheat-rye cultivar ‘TRANS' which have freezing resistance and high yield in this study. ‘TRANS' is a new wheat-rye translocation cultivar developed by crossing between common wheat ‘Keumkangmil' and ‘951188-G3-G1', a 1AL.1RS translocation derived from ‘Fleming' with the aim of high yield and resistant genes to various unfavorable environments carried by 1RS. ‘TRNAS' have clearly different genetic and agronomic traits to the control cultivar ‘Keumkangmil'. The heading date and maturity of ‘TRANS' are later than that of ‘Keumkangmil'. ‘TRANS' has 1023 spike number per square meters and grain yield of 541 kg/10a, which are higher than ‘Keumkangmil' (904 spike number/m2 and 504 kg/10a yield). ‘TRANS' showed winter hardiness and powdery mildew resistance in artificial infection test and field evaluation. ‘TRANS' gives lower flour yield than ‘Keumkangmil' but ash and protein content were similar to that of ‘Keumkangmil'. The color of flour and noodle dough of ‘TRANS' were darker than ‘Keumkangmil'. Quality parameters related to milling, flour quality, noodle dough and end-use quality of ‘TRANS' indicates that ‘TRANS' is soft wheat suitable for noodle making. ‘TRANS' can be cultivated in entire part of Korea. Registration Grant No.: 4695
본 논문은 네트워크 서비스 프로그래밍을 이용해 이동로봇이 비전기반의 목표물 추적을 수행하는 새로운 방법을 제안하였다. 로봇을 위한 비전시스템은 칼라 목표물, 얼굴 및 제스춰 검출기능을 수행하며, 하나의 네트워크 서비스로 프로그래밍 되어있어 네트워크 환경에 연결된 어떤 컴퓨터 노드에서나 실행될 수 있으며, 로봇 자체에서도 실행이 가능하다. 비전기반의 이동로봇 목표물 추적기술은 고수준의 조정자 기능을 수행하여 이동로봇이 단색 상의를 착용한 사용자를 추적하는 기능을 수행할 수 있다. 이 목표물 추적서비스는 카메라와 범퍼센서 및 레이저 레인지 파인더를 장착한 이동로봇을 위해 고안되어 졌다. 마지막으로 실험을 통해 제안된 네트워크 서비스 기반의 이동로봇 목표물 추적기술의 가능성과 효용성을 입증하였다. This paper proposed a new approach using a network service programming for a mobile robot to do a vision based tracking both in a real and a simulated environment. Vision system that performs a color object, a face and hand gestures detections has been implemented as an network service so that it can be deployed either in any of computer nodes in network environments or in the mobile robot itself. Vision Based Tracking System has been developed to perform a high level coordination service for a mobile robot that can follow a user wearing a colored shirt. This tracking service has been designed for a mobile robot which is equipped with a camera, bumpers and a laser range finder. Finally the feasibility and effectiveness of the proposed network service based tracking method for a mobile robot has been demonstrated.
As a first stage of studies on the development of a fluidized bed incinerator for radioactive spent ion-exchange resins, the axial mixing characteristics of anion exchange resin beads and glass beads in a fluidized bed were investigated. The extent of axial solid mixing could be well characterized with a diffusion model and a global mixing index under various experimental conditions such as excess air velocities, size differences of particles and concentrations of resins. It was found that a certain extent of mixing or segregation was reached after 90 s. Axial diffusion coefficients are varing from 1 to 5 ㎠/s in this experimental ranges. The best conditions to incinerate anion resin beads with glass beads as bed materials in the gas-solid fluidized bed system, were 30 wt% of resins in overall composition and excess air velocity over 8 ㎝/s with glass beads having an averaged diameter of 320㎛.