• 생약학회지
• /
• 제49권3호
• /
• pp.278-284
• /
• 2018

Asimina triloba contains many kinds of annonaceous acetogenins known to have toxicity and/or activity. In this study, analysis of acetogenins was carried out on the extract and its solvent fractions of A. triloba leaves using a liquid chromatography mass spectroscopy(LC-MS). In the extract, the ethanolic extract was significantly higher acetogenin contents than hot water extract. In the analysis of solvent fraction from the ethanolic extract, n-hexane, ethylacetate, and aqueous fraction were contained 85.17~90.92%, 8.96~14.52% and 0.12~0.35% of total acetogenin in the extract. Based on these results, the analytical method is useful for comparing annonaceous acetogenins contents in plant samples. Moreover, when research or product development aiming at the physiological activity of acetogenin such as anticancer activity using A. triloba leaves is performed, a fractionation using a nonpolar organic solvents and alcohol extract may be useful methods. This method can also be used for the purpose of eliminating toxicity as well.

• 한국콘텐츠학회논문지
• /
• 제9권6호
• /
• pp.45-52
• /
• 2009

최근 제조업에서 제품 설계를 지원하는 디지털 전문가 시스템을 개발하는 사례가 일어나고 있다. 이 시스템은 제조업에서 엔지니어가 프로세스를 통제하고, 생산관리와 시스템 관리 등을 위하여 사용되고 있다. 본 논문에서는 전문가 시스템을 구축하기 위한 온톨로지 기반의 추론 엔진 개발에 대하여 논한다. 전문가 시스템은 한국어를 지원하고 다양한 기능을 가지며, 그래픽한 온톨로지 맵 인터페이스와 퍼지 룰 기능 정의 등의 기능을 갖도록 하였다. 또한, 온톨로지 맵 구축과 온톨로지 기반의 퍼지 추론 방법에 대하여 지식을 표현하는 방법에 대하여 설명한다.

• 한국근적외분광분석학회:학술대회논문집
• /
• 한국근적외분광분석학회 2001년도 NIR-2001
• /
• pp.1267-1267
• /
• 2001

The existing fruit sorter has the method of tilting tray and extracting fruits by the action of solenoid or springs. In peaches, the most sort processing is supported by man because the sorter make fatal damage to peaches. In order to sustain commodity and quality of peach non-destructive, non-contact and real time based sorter was needed. This study was performed to develop peach sorter using near-infrared spectroscopy in real time and nondestructively. The prototype was developed to decrease internal and external damage of peach caused by the sorter, which had a way of extracting tray with it. To decrease positioning error of measuring sugar contents in peaches, fiber optic with two direction diverged was developed and attached to the prototype. The program for sorting and operating the prototype was developed using visual basic 6.0 language to measure several quality index such as chlorophyll, some defect, sugar contents. The all sorting result was saved to return farmers for being index of good quality production. Using the prototype, program and MLR(multiple linear regression) model, it was possible to estimate sugar content of peaches with the determination coefficient of 0.71 and SEC of 0.42bx using 16 wavelengths. The developed MLR model had determination coefficient of 0.69, and SEP of 0.49bx, it was better result than single point measurement of 1999's. The peach sweetness grading system based on NIR reflectance method, which consists of photodiode-array sensor, quartz-halogen lamp and fiber optic diverged two bundles for transmitting the light and detecting the reflected light, was developed and evaluated. It was possible to predict the soluble solid contents of peaches in real time and nondestructively using the system which had the accuracy of 91 percentage and the capacity of 7,200 peaches per an hour for grading 2 classes by sugar contents. Draining is one of important factors for production peaches having good qualities. The reason why one farm's product belows others could be estimated for bad draining, over-much nitrogen fertilizer, soil characteristics, etc. After this, the report saved by the peach grading system will have to be good materials to farmers for production high quality peaches. They could share the result or compare with others and diagnose their cultural practice.

• 가정과삶의질연구
• /
• 제27권6호
• /
• pp.243-253
• /
• 2009

This study identifies the concept of a digital convergence paradigm, which deals with the relationship among convergence and consumer participation, digital contents services, and the culture of consumption (web 2.0). This research was conducted using a quantitative method involving focus group interviews (FGI) and literature reviews. This research examines the relationship between convergence and consumer participation and the adoption of a concept of "convergence culture", which is categorized as "collective intelligence" and "intellectual community participation". The role of the consumer has changed from one of a "consuming consumer" to that of a "collaborating consumer" and finally to the concept of a consumers as the originator of a new consumption culture. In the study, the consumption culture of web participants indicated the characteristics of funology, self-expression, life-catching, quick-tempered, immersion(arousal), sharing culture, multitasking, and cyber justice. The recognition level of networking on the "digital convergence" of the consumer was identified as that of the combination of IT(information technology); product and multi-services or alliance of industry groups(telecom, broadband, IPTV service); or the use of one source with multiple devices.

• 한국식생활문화학회지
• /
• 제29권3호
• /
• pp.250-258
• /
• 2014

This research investigated the relationship among Korean Wave Cultural Contents consumption of Korean food, Korean products, and Learning of the Korean language. The survey targeted non-Koreans who were either interested in or experienced Korean Wave Cultural Contents. Exactly 61.3% of subjects had traveled to Korea. The most common method of experiencing the Korean Wave was via the Internet (57.7%), followed by TV (21.1%) and Mobile (7.7%). The most popular Korean Wave Contents were K-pop (35.2%) and TV Dramas (31.0%). Movies were preferred in the Americas ($3.63{\pm}0.83$) and Asia ($3.63{\pm}1.09$), whereas K-pop was preferred in Asia ($3.68{\pm}1.12$) and games preferred in Europe ($2.50{\pm}1.56$). Regarding Korean food, most participants had tasted Kimchi (81.7%), followed by Bulgogi (74.6%), Bibimbap (66.9%), and Galbi (66.2%). According to the country-by-country survey, in the case of Galbi (p<0.05), Bibimbap (p<0.05), and Bulgogi (p<0.05), Asians had more experiences with Korean food compared to those from other regions. Meanwhile, in the case of satisfaction of Korean food, Bulgogi ($4.22{\pm}1.05$) was ranked highest, whereas Kimchi ($3.85{\pm}1.15$) was ranked lowest. According to the region-by-region survey, those from Oceania and other regions preferred Kimchi ($4.25{\pm}0.71$) and Bulgogi ($4.50{\pm}4.50$) while the Americas preferred Galbi ($4.82{\pm}0.39$) and Bibimbap ($4.54{\pm}0.81$). Bulgogi ($2.76{\pm}0.06$) was highly ranked as a representative Korean Food while Kimchi ($2.44{\pm}0.71$) was ranked the lowest. This research explained that among Korean Wave Cultural Contents, movies and music positively influenced on the 'Image of Korea', movies and K-pop effected 'Purchasing intention of Korean products', and TV Dramas, movies, and K-pop effected 'Purchasing intention of Korean Food'.

• 한국CDE학회논문집
• /
• 제13권2호
• /
• pp.139-152
• /
• 2008

In order to survive worldwide competition, today's industries are experiencing strong pressure to introduce higher quality products with lower cost and shorter lead-time. Therefore, the role of design in the process of product development is increasing in significance. In this research, two methods for improving the design capability are proposed: construction of design environment and design automation using 3D CAD system. The designers and design process are the core of product design using 3D CAD system. In order to maximize the design performance, construction of the design environment including selection of a suitable system, designer training for best use of the system, establishment of an efficient design process, and stabilization of the environment are required. A method is suggested to construct design environment by systematizing the contents of the projects and consulting experiences carried out for various categories of business such as electronic devices, motorcycles, electricity parts, sanitary wares, injection molds, and die casing molds. Design automation helps reduce tedious and time-consuming jobs, simplify complicated and error-prone modeling and drawing works to shorten the lead time and improve the product quality. To develop a design automation system, understanding the process and the related knowledge on design are very important before implementing the system using API provided by 3D CAD system. In this research, an eight-step procedure is proposed for the development of a design automation system. These eight steps are analysis of needs, determination of specification, verification of specification using 3D CAD system, inspection of related API functions, programming, field test, application in practice, and maintenance. A case study in which five design automation systems in the design of turbine generators using the proposed method is introduced in detail. These systems play important roles in the generation of various output items including 3D models, drafts, material information, and NC data. The case study shows how effectively the design time is reduced and the quality improved using those systems.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2005년도 학술대회 논문집 정보 및 제어부문
• /
• pp.201-203
• /
• 2005

The best method to study language is to talking with a native speaker. A voice recognition technology can be used to develope a language study machine. SD(Speaker dependant) and SI(speaker independant) voice recognition method is used for the language study machine. MP3 Player. FM Radio. Alarm clock functions are added to enhance the value of the product. The machine is designed with a DSP(Digital Signal Processing) chip for voice recognition. MP3 encoder/decoder chip. FM tumer and SD flash memory card. This paper deals with the application of SD ad SD voice recognition. flash memory file system. PC download function using USB ports, English conversation text function by the use of SD flash memory. LCD display control. MP3 encoding and decoding, etc. The study contents are saved in SD flash memory. This machine can be helpful from child to adult by changing the SD flash memory.

• 생약학회지
• /
• 제33권4호통권131호
• /
• pp.291-295
• /
• 2002

On the quality control of commercial Zingiberis Rhizoma and its processed product, quantitative determination of 6-gingerol using HPLC method has been conducted. Quantitative analysis off-gingerol in Zingiberis Rhizoma showed average 0.359% in 14 samples collected throughout the regions of Korea. The contents of 6-gingerol in Zingiberis Rhizome were decreased during the processing procedure (0.306%).

• Natural Product Sciences
• /
• 제27권4호
• /
• pp.280-283
• /
• 2021

Cercidiphyllum japonicum is being used for the treatment of obesity and liver fibrosis in Korean local clinics. In the present study, we tried to develop an analytical methodology for the determination of the chemical markers of Cercidiphyllum japonicum. Four chemicals, maltol (1), chlorogenic acid (2), quercetin (3), and avicularin (4), were selected for method validation, and the analytical conditions were optimized and validated using high-performance liquid chromatography coupled with an ultraviolet detector (HPLC-UV). Additionally, the seasonal variations of four markers were monitored every month for six months. The contents of four chemicals markers were most detected in a sample collected in June.

• 한국산학기술학회논문지
• /
• 제11권1호
• /
• pp.278-286
• /
• 2010

본 연구는 새로운 유통환경인 인터넷환경에서 디지털 콘텐츠의 충동구매에서의 마케팅 자극, 플로우, 자기행동통제 및 감각추구성향간의 영향을 살펴보고자 하였다. 이를 위해 충동구매 동기요인을 기존의 연구들에서 제시된 마케팅자극을 이용하였다. 구매자의 마케팅자극으로 디지털 콘텐츠 구매자들이 받게 되는 제품자극, 가격자극, 촉진자극으로 구분하여 구매자의 충동구매행동에 미치는 영향을 검증하였다. 이때 구매행위 전에 자신이 받은 자극에 대해 플로우를 경험하는 과정이 나타날 것이다. 플로우(FLOW)는 구매행위자가 받은 자극을 보다 강화시키는 충동구매행위의 중요한 요소가 될 것이다. 이처럼 인터넷 환경에서는 기존의 충동구매 과정과는 달리 충동구매자극 이후에 더 많은 정보를 획득할 수 있고 쉽고 빠르게 구매할 수 있기 때문에 마케팅자극이외에 구매자의 심리적인 측면이나 성향등이 충동구매행동에 있어 보다 중요한 역할을 하게 될 것이다. 행위에 대한 자신의 능력 및 통제 가능성인 자기행동 통제에 따라서 충동구매행동이 다르게 나타나게 될 것이다. 또한 구매자들이 가지고 있는 구매자들의 성향 중에 감각 추구성향은 충동구매를 하는데 조절역할을 하는지에 대한 검증을 하였다. 이를 통해 디지털 콘텐츠 충동구매와 관련된 학문적인 시사점과 더불어 디지털 콘텐츠 마케터들의 효과적인 마케팅 전략수립에 도움을 주고자 한다.