• 농업과학연구
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• 제49권3호
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• pp.655-666
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• 2022

We assessed the persistence of eight major cruciferous crops-leaf mustard, oilseed rape, cabbage, broccoli, cauliflower, Chinese cabbage, turnip, and radish-growing in the field. In the first part of our experiment, we tested the viability of seeds that had been buried at two different soil depths for up to 16 months. We then broadcast seeds over the soil surface and left them undisturbed to investigate the survivorship of the resultant plants over two years. Seed viability was significantly affected by plant taxa and burial depth, but not substantially affected by the duration of burial. Although seeds of leaf mustard had the greatest viability among all crops examined here, the viability rates were significantly lower at 2 cm depth than at 15 cm. Seeds of leaf mustard, oilseed rape, broccoli, turnip, and Chinese cabbage remained viable throughout the 16-month period. A study of plant demography revealed that only leaf mustard and oilseed rape succeeded in producing seeds and overwintering in the undisturbed field. However, neither of those species competed well with other plants long-term and their overall growth and survival rates declined during the evaluation period. In addition, insect herbivory severely decreased the growth of all of these crops. Our results suggest that populations of leaf mustard and oilseed rape do not tend to persist in the field for more than a few years without disturbance and external seed inputs.

• 기술혁신학회지
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• 제12권1호
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• pp.137-164
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• 2009

본 연구는 출연(연) 성과향상을 위한 기관평가시스템의 발전방안 논의의 일환으로 출연(연) 기관평가시스템이 연구기관 구성원들의 평가결과에 대한 수용성 정도에 미치는 영향과 이로 인한 연구기관 성과에 미치는 영향을 살펴보았다. 분석결과 경제 인문사회연구회의 출연(연) 기관평가시스템은 연구기관 성과에 유의적인 정(+)의 영향을 미쳤으며, 평가결과 수용성은 연구기관 성과에 관련성이 있는 것으로 확인되었다. 또한, 성과가 높은 기관들은 전반적으로 기관평가시스템에 대한 긍정적 인식과 함께 평가결과 수용태도도 높다는 점을 확인 할 수 있었다. 그러나 출연(연) 기관평가시스템의 전반적 취약점들에 의해 평가결과에 대한 수용도가 높지 않고, 정부 및 연구회 차원에서도 평가결과의 적극적인 활용에 제약이 있음도 알 수 있었다. 끝으로 이러한 연구결과에 따른 개선점을 제시하고, 향후 연구방향과 한계점에 대하여 논의하였다.

• 한국의류학회지
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• 제40권4호
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• pp.660-668
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• 2016

In the $21^{st}$ century of digital information society, design is changing from an analog era that focuses on logical and rational knowledge to a new paradigm of an era focused on sensible communications that can react fast. Design becomes to fulfill sensible needs; moreover, full efforts are being made in the academic research of sensibility evaluation for the conceptualization, quantization, and visualization of design sensibilities based on the measurement and evaluation of sensibility. This study provides insight into a sensibility evaluation method to understand the global user's sensibility in the fashion design field. As for research methods, first, measurement methods of physical, psychological, and physiological reactions to design sensibility were examined through written research on sensibility evaluation in both domestic and overseas research. Next, studies on sensibility during the past 15 years from 2000 to 2014 in the field of domestic fashion design were analyzed to grasp research trends in sensibility evaluation methods; subsequently, suitable sensibility evaluation methods for current fashion design were discussed. As a result of the study, it was shown that most sensibility evaluation studies in the field of domestic fashion design are based on surveys using sensibility terms. However, it requires the process of translating among different terms in different lingual cultures and within the limits of a uniformed evaluation. In this regard, recent cases of overseas design studies have been applying new methods to measure physiological reactions such as eye tracking methods combined with IT. The analysis of multilateral sensibility evaluation methods in this study have significant meaning for use as basic data to establish a planning for an evaluation scale to measure the sensibility of global consumers towards modern fashion design more quantitatively.

• 분석과학
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• 제32권2호
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• pp.56-64
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• 2019

Recently, a number of adulterated products, which are advertised as hair-growth enhancer have been emerged among those who suffer hair loss disease. For continuous control of illegal products, in this study, a rapid and sensitive method for simultaneous screening of 12 compounds that enhance hair-growth was established to protect public health by ultrahigh-performance liquid chromatography coupled to quadrupole-orbitrap mass spectrometry (UHPLC-Q-Orbitrap-MS). Fragmentation pathways of them were proposed based on $MS^2$ spectral data obtained using the established method. In this analysis, the LODs and LOQs ranged from 0.05 to 50 ng/mL and from 0.17 to 167 ng/mL, respectively. The square of the linear correlation coefficient ($R^2$) was determined as more than 0.995. The intra- and inter-assay accuracies were respective 88-112 % and 88-115 %. Their precision values were measured within 5 % (intra-day) and 10 % (inter-day). Mean recoveries of target compounds in adulterated products ranged from 84 to 115%. The relative standard deviation of stability was less than 12 % at $4^{\circ}C$ for 48 h. The method was employed to screen 14 dietary supplements advertised to be effective for the treatment of hair loss. Some of the products (~21 %) were proven to contain synthetic drugs that promote hair growth such as triaminodil, minoxidil, and finasteride.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제7권1호
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• pp.33-42
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• 2018

본 연구는 국내 웹 접근성 평가 연구동향을 분석하여, 부족한 점과 웹 접근성 평가 연구가 나아가야 할 방향성을 제시하기 위한 목적으로 진행되었다. 목적 달성을 위해 2000년 1월부터 2017년 3월까지 약 17년간 한국연구재단 등재학술지 및 등재후보 학술지에 발표된 논문을 대상으로 총 59편을 선정하였다. 선정된 논문들은 웹 접근성에 대한 평가자, 평가 대상, 평가 방법, 평가 결과별로 분석하였다. 분석 결과, 평가자 측면은 '단독 평가(66%)'가, 평가 대상은 '웹 사이트(83%)'가 가장 높은 비율이었다. 평가 방법은 자동평가, 자동과 수동 병행이 유사한 비율이었다. 마지막으로 웹 접근성 문제없음을 나타낸 논문은 단 2편이었다. 본 연구는 평가 동향을 분석한 메타 연구가 부족한 상태에서 한국의 웹 접근성 연구 및 웹 접근성 평가 연구의 바람직한 방향성을 제언했다는 데 의의가 있다.

• Toxicological Research
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• 제35권1호
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• pp.37-44
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• 2019

A major predictor of the efficacy of natural or synthetic cannabinoids is their binding affinity to the cannabinoid type I receptor ($CB_1$) in the central nervous system, as the main psychological effects of cannabinoids are achieved via binding to this receptor. Conventionally, receptor binding assays have been performed using isotopes, which are inconvenient owing to the effects of radioactivity. In the present study, the binding affinities of five cannabinoids for purified $CB_1$ were measured using a surface plasmon resonance (SPR) technique as a putative non-isotopic receptor binding assay. Results were compared with those of a radio-isotope-labeled receptor binding assay. The representative natural cannabinoid ${\Delta}^9$-tetrahydrocannabinol and four synthetic cannabinoids, JWH-015, JWH-210, RCS-4, and JWH-250, were assessed using both the SPR biosensor assay and the conventional isotopic receptor binding assay. The binding affinities of the test substances to $CB_1$ were determined to be (from highest to lowest) $9.52{\times}10^{-3}M$ (JWH-210), $6.54{\times}10^{-12}M$ (JWH-250), $1.56{\times}10^{-11}M$ (${\Delta}^9$-tetrahydrocannabinol), $2.75{\times}10^{-11}M$ (RCS-4), and $6.80{\times}10^{-11}M$ (JWH-015) using the non-isotopic method. Using the conventional isotopic receptor binding assay, the same order of affinities was observed. In conclusion, our results support the use of kinetic analysis via SPR in place of the isotopic receptor binding assay. To replace the receptor binding affinity assay with SPR techniques in routine assays, further studies for method validation will be needed in the future.

• 가정과삶의질연구
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• 제27권3호
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• pp.213-224
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• 2009

This research aims to analyze and compare the objective and subjective evaluation criteria for home appliances. In addition, this research examined the correlation between those evaluation criteria. Furthermore, consumers are divided by the level of the differences between those criteria; consumer groups whose subjective evaluation level for the quality of home appliances is greater than objective evaluation level, consumer groups whose subjective evaluation level is almost the same, and consumer groups whose subjective evaluation level for the quality of home appliances is lower than objective evaluation level, and this study investigated the differences those three groups by the socio-demographic characteristics and consumers' behavior in the stage of purchase. Results of this research could be summarized as follows. First of all, there were statistically significant between the level of the objective and subjective evaluation in the quality of home appliances. Second, when consumers purchased the expensive home appliance, imported-brand home appliance, home appliances in department store, the level of subjective evaluation level for the quality of home appliances is higher than objective evaluation level. Third, the level of satisfaction for the price, quality, AS, overall satisfaction, and the level of willingness to repurchase were higher in consumer groups whose subjective evaluation level was higher than objective evaluation level.

• 한국식품위생안전성학회지
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• 제25권3호
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• pp.278-280
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• 2010

This study was aimed to develop a novel qualitative multiplex polymerase chain reaction (PCR) for simultaneous detection of genetically modified (GM) soy and maize within a single reaction. The specific primers designed to detect four respective GM events (A2704-12, MON88017, Bt11, and MON863) were included in the tetraplex PCR system. Each of PCR products for four GM events could be distinguished by agarose gel based on their different lengths. The specificity and reproducibility of this multiplex PCR were evaluated. This multiplex PCR consistently amplified only a fragment corresponding to a specific inserted gene in each of the four GM events and also amplified all four of the PCR products in the simulated GM mixture. These results indicate that this multiplex PCR method could be an effective qualitative detection method for screening GM soy and maize in a single reaction.

• 품질경영학회지
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• 제51권2호
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• pp.185-202
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• 2023

Purpose: The purpose of this study is to identify key performance evaluation items and factors that are effective and practical for project management of defense standard standard improvement projects, and to develop a quantitative performance evaluation model. Methods: For the development of a performance evaluation model for defense standard improvement projects, we analyzed past major project performance and derived evaluation items and factors. To increase the objectivity and efficiency of project evaluation, we developed an evaluation index that enables relative evaluation of evaluation targets, and calculated the main importance of evaluation items using the Analytic Hierarchy Process (AHP) method based on the main opinions of expert groups. Results: The study resulted in the identification of main performance items for defense standard improvement projects, which were classified into defense standard conformity review performance and defense standard improvement performance items. We also simplified the evaluation model by integrating various evaluation items into similar evaluation factors. Additionally, we developed a quantitative evaluation index that enables relative evaluation of the targets and verified the objectivity and validity of the suggested performance evaluation model by reevaluating it using performance data from past commissioned professional institutions Conclusion: Developing a quantitative evaluation model for defense standard improvement projects is expected to provide a means of measuring the effectiveness of the project, and to be used as a tool to determine the appropriateness and effectiveness of medium and long-term project plans.

• 한국식품위생안전성학회지
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• 제26권2호
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• pp.125-141
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• 2011

본 연구에서는 비료나 수지의 원료물질로 알려진 멜라민이 최근 수입식품 및 가공식품 등에서 검출되어 국제적으로 문제가 되어 생체시료 중 멜라민의 분석법을 확립하고 벨리데이션을 실시하여 신뢰성을 확보하고자 하였다. 생체시료(뇨 및 혈액) 중 멜라민 및 시아누르산 분석을 위해 단백질 침전법, 액체상 추출법으로 불순물을 제거하였고 LC/MS를 이용한 멜라민 최적분석법의 벨리데이션 결과에서 검출한계는 0.2 ng/mL(멜라민), 2.0 ng/mL(시아누르산)이었으며 각 정량범위내의 직선성은 0.9990이상을 가졌다. 뇨및 혈 중 멜라민의 quality control 시료는 0.5 ng/mL, 0.8 ng/mL, 2.0 ng/mL, 3.0 ng/mL으로서 뇨 중 멜라민 및 시아누르산의 정확성은 91.6%-107.6%범위를 나타내었고 정밀성은 2.0%-11.8%으로 나타났다. 혈 중 멜라민 및 시아누르산의 정확성은 94.9%-119.0%범위를 나타내었고 정밀성은 3.7%-13.5%으로 나타났다. 또한, GC/MS를 이용한 멜라민 분석의 검출한계는 5.0 ng/mL(멜라민), 5.0 ng/mL(시아누르산)이었고, 뇨 및 혈중 멜라민의 quality control 시료는 10.0~40.0 ng/mL이었으며, 뇨 및 혈 중 멜라민 및 시아누르산의 정확성은 83.7%~ 10.7% 범위를 나타내었고, 정밀성은 3.5%-13.8% 으로 나타났다.