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박승영,조대현,문현주,조수열,이준구,이화미,송지영,조옥선 한국식품위생안전성학회 2011 한국식품위생안전성학회지 Vol.26 No.4
This study was performed to investigate contamination levels of aflatoxins, the secondary metabolites produced by fungi Aspergillus flavus and A. parasiticus, in herbal medicine. Herbs is susceptible to these fungi infections through its growth harvest, transport and storage. This study determine the aflatoxin B₁, B₂, G₁ and G₂levels by HPLC-florescence detector coupled with photochemical enhancement in 558 samples herbal medicine distributed in Korea and China. Also, We checked a transfer ratio of aflatoxins from raw herbal medicines to herbal medicine extract. Hot water extraction of herbal medicines was prepared by air pressure and high pressure condition. The analytical method for aflatoxins was validated in this method. In results recoveries of the analytical method were ranged from 67.4% to 96.2% and, limits of detection and quantitation for aflatoxins were 0.015~0.138 μg/kg and 0.046~0.418 μg/kg, respectively. According to the results of monitoring on aflatoxins in herbal medicine, aflatoxins 1.7 ug/kg B1 and 0.9 ug/kg G₁were detected in only one sample of Strychni Ignatii Semen, and 0.8 ug/kg G₁ in Strychni Semen. About 13.6~51.3% of aflatoxins were transferred to hot water extract. Although the detected levels are under the permitted levels for aflatoxins in herbal medicine, these amounts should be considered in regard to overall daily exposure to mycotoxins.
박승영,이경원 한국청각언어재활학회 2015 Audiology and Speech Research Vol.11 No.4
The purpose of the present study was to investigate how the sentence recognition scores (SRSs) in noise are changed as a function of the compression ratios (CRs) and what CR is preferred by the individual listeners in terms of sound quality when speech is presented in quiet. Participants consisted of 31 individuals with sensorineural hearing loss ranging in age from 65 to 85 years (mean = 77.0 years) and divided by two groups according to their hearing aids; hearing aid used or non-used. Korean Standard Sentences mixed with white noise of +6 and 0 dB signal-to-noise ratios (SNR) and varied 1:1, 2:1, and 3:1 CR with attack time of 2 msec and release time of 5 msec were presented in most comfortable level. Results showed that SRSs were significant for the SNRs, but the other variables did not differ significantly on the SRS and sound quality including CR. However, analysis of individual participant data, highest SRS and most preferred sound quality was observed in 2:1 CR. Conclusively, this results may help to determine of compression ratio of non-linear hearing aid for Korean hearing impaired.
여행사 서비스 품질경영이 기업성과에 미치는 영향에 관한 이론적 고찰
박승영 관광품질시스템학회 2001 관광품질시스템연구 Vol.7 No.1-2
Tourism industry is plying an increasingly important role in the overall economy of the world. There is no doubt about service quality is the most critical edge for the success of travel industry. But travel agents have faced difficult times in recent years because of increasing customer demands and internal competition in the industry. Accordingly, this study was intended to report on an theoretical investigation into the relationship between service quality management in travel agency and its business performance
박승영 관광품질시스템학회 2000 관광품질시스템연구 Vol.6 No.1
The tourism industries assume an increasing importance in the economy. While the tourism industries continue to extend, the research on improving quality in those industries has been limited. In addition to, tourism service quality is an elusive and abstract construct that is difficult to define and measure. Tourist satisfaction with package tour has been seriously under-researches to date. Despite the importance of tourist satisfaction in tourism marketing, seriously lacking are studies identifying consumer-oriented satis-faction factors and applying there factors in actual company marketing. The main purpose of this study is to find the factors which manage tourism service quality and to test the significance of the relationships between tourism service quality, tourist satisfaction.