• 한국초지조사료학회지
• /
• 제15권3호
• /
• pp.157-163
• /
• 1995

The objective of this study is to obtain the basic data for investigating the effects of organic reserves on winter survial or regrowth yield. Dry matter, nitrogen and non-structural carbohydrate content of plants grown under $5^{\circ}C$ or $20^{\circ}C$ of culture temperature during 25 days were investigated. The dry matter content of leaves and roots were significantly reduced under $5^{\circ}C$ compared with $20^{\circ}C$culture condition. Comparing with the dry matter per plant under $20^{\circ}C$, those in leaves and roots under $5^{\circ}C$ decreased to 25% and 10%, respectively, after 25 days of temperature treatment. Total nitrogen content in leaves under $20^{\circ}C$ and $5^{\circ}C$ increased to 68% and 39% compared to the initial lenel(day O), respectively, during 25 days after temperature treatment, Nitrogen content in roots highly increased under 5 C while there was a little change under $20^{\circ}C$ condition. The nitrogen contents in roots under $5^{\circ}C$ and $20^{\circ}C$ were 39.0 and 30.8mgJg DM, respectively, after 25 days of temperature treatment. Total contents of soluble carbohydrate in both leaves and roots under $5^{\circ}C$ were higher than those under $20^{\circ}C$ condition. After 25 days of temperature treatment under$5^{\circ}C$ , their contents in leaves and roots were 1.4 and 2.0 times higher than those of under $20^{\circ}C$ condition. Stach atent in roots under $20^{\circ}C$ was less changed, while thatof under $5^{\circ}C$ greatly increased from 64.8 to 178.7mglg DM duling 25 days. 'Ihese results clearly showed that an accumulation of both nitrogen and non-structural carbohydrate in the plants occured under low temperature condition.e condition.

• Fisheries and Aquatic Sciences
• /
• 제21권4호
• /
• pp.9.1-9.7
• /
• 2018

To establish a comprehensive management strategy, as part of the optimization of cultural practice for an oyster rack culture system, we used a numerical model to estimate the primary production in the waters on the eastern coast of Wando island, South Korea. The estimated primary production ranged from 17.12 to $1052.55mgC\;m^{-2}day^{-1}$ ($204.22{\pm}224.75mgC\;m^{-2}day^{-1}$ in average). Except for the times of peak phytoplankton blooms, the estimated primary production (PP) was consistently under $200mgC\;m^{-2}day^{-1}$, which is more similar to the value of PP measured off the western coast of South Korea than the southern coast. No clear relationship was observed between nitrogen content and rainfall with the exception of heavy rainfall events, indicating that precipitation might not be the main source of nutrients in these waters. No clear influence was observed from Doam tidal discharge, located 24 km north from these waters due to main tide comes in this area from the channel between Gunwe-myeon in Wando island and Pukpyeong-myeon in Haenam-gun. Because of the shallow water depth and strong tidal current, resuspension of sediments, which causes an input of nitrogen into the system, could be easily caused by even mild wind and the infrequent passing of ships. Microscopic examination of the phytoplankton composition showed additional contribution of benthic species such as Paralia sulcata into the waters, which increase the productivity of oyster farms in the waters. The availability of nitrate and phosphate for primary production was temporarily limited throughout most of the spring and autumn blooming season.

• 복식문화연구
• /
• 제8권1호
• /
• pp.65-76
• /
• 2000

The purposes of this study were to claassify of clothing-wearing motives, to analyze tendency of fashion in campus, and to propose fashion merchandising plans and marketing strategies of companies for female college students. Research had been done during 1 week each on April and October in 1998 and 1999. Sixty-two students in spring semester and 54 student in fall semester were surveyed and analyzed. Their grades and majors were not considered in this study. Fashion Diary had been written by students and then their statements were analyzed by the means of the qualitative data analysis. Following conclusions were obtained from this study. 1. Clothing-wearing motives were classified with 'group depending on daily work', 'group depending on image', 'group depending on body supplement', 'group depending on weather', 'group of fashion following', 'group depending on courtesy', 'group depending on mood', and 'group of unconcerning'. 2. The fashion tendency of the students were layered look and they preferred casual styles, such as round t-shirts, jean pants, and cardigans. The color of white, black, and gray were prevalent for top wear, and the color of blue, black, beige for bottom wear in both seasons. For shoes, color of black, brown, white were popular. For bags, black, blue, and khaki color were prevailed. 3. The proposals obtained from this study are as follows : 1) Production of clothing enforced functional and practical base is wanted for 'group depending on daily work'. 2) Designs considering body parts such as hip, arm hole, shoulder, and thigh are needed. 3) Utilization of new materials such as waterproof with ventilation, opaque (means 'not see-through'), antipollution finishing process are required. 4) Simple designs of clothing which could be performed by herself with various accessories. Thermochromic materials are wanted for 'group of fashion following'. 5) Diversity of semi-suit is required for 'group depending on courtesy'.

• 복식문화연구
• /
• 제16권2호
• /
• pp.293-304
• /
• 2008

The objectives of this study were to investigate the images in men's hairstyle by hair color, tone, texture, and perceiver's gender, and to examine the characteristics of hairstyle appropriate to seasons. A quasi-experimental method by questionnaire was used, and the experimental design was $4{\times}3{\times}2{\times}2$(hair color$\times$tone$\times$texture$\times$perceiver's$\times$gender) factorial design. The subjects were 372 men and women in their 20s through 50s. five factors of men's hairstyle image were derived by factor analysis: individuality, dignity, romanticism, refinement, and activity. Black hair was perceived to be high in dignity and activity. Bright tone was perceived to be high in individuality, but low in dignity. Men's wave hair was perceived to be higher in individuality than straight hair, but lower in dignity. Perceiver's gender did not give significant influence on evaluation of all image factors. In brown, neutral tone was perceived to be higher in dignity. romanticism, and activity than dark or bright tone. In black, wave hair was perceived to be more refined than straight hair. Black hair matches with winter the most, and yellow matches with spring the most. In terms of tone, dark tone matches with winter; neutral tone matches with autumn; bright tone matches with summer. The results of this study verified that hair color and texture affect men's image perception, and matching hair colors are associated with seasons.

• Journal of Plant Biotechnology
• /
• 제45권4호
• /
• pp.347-356
• /
• 2018

Chionanthus retusus is a small deciduous tree that is widely used in landscaping due to its beautiful white spring flowers and ornamental value. Conventional propagation through seeds requires one to two years of breaking dormancy. The objective of this study was to determine the conditions of in vitro germination in C. retusus. In vitro embryo culture was carried out to investigate the effects of six factors: basal media (McCown Woody Plant Medium (WPM) and Murashige and Skoog (MS)); plant growth regulators (different combinations and concentrations of naphthaleneacetic acid (NAA), 6-Benzylaminopurine (BA), and gibberellic acid ($GA_3$)); embryo age (collected weekly beginning 36 days after fruit setting); low temperature pretreatment (storing $4^{\circ}C$ for 1, 2, 3, and 4 weeks); coconut additives (100, 200, and $300ml{\cdot}L^{-1}$); and genotype (grouping plants depending on their flowering nature). The basal medium used in this study was WPM with $2mg{\cdot}L^{-1-1}\;GA_3$, $20g{\cdot}L^{-1}$ sucrose, and $6g{\cdot}L^{-1}$ Agar. WPM medium mixed with $GA_3$, resulted in higher germination rate as compared to when using a combination of auxin and cytokinin. $GA_3$ at $2mg{\cdot}L^{-1}$ was the most effective of all combinations and concentrations of PGRs. WPM medium with $2mg{\cdot}L^{-1}GA_3$ resulted in better and faster germination (75.93%). Embryos collected at 57 days after fruit setting had the highest percent of germinated seeds (87.04%) while low-temperature pretreatment of fruits at $4^{\circ}C$ for two weeks produced the highest germination (95.37%). These results of this study could be an open ground for development of an efficient protocol for commercial production of the ornamental tree.

• 문화기술의 융합
• /
• 제7권1호
• /
• pp.662-667
• /
• 2021

진동 햅틱 피드백은 최신 터치 디스플레이의 주요한 기능으로, 화면의 인터페이스와 상호 작용할 때 사용자의 조작성 및 몰입감을 크게 향상시킨다. 본 연구에선 정전기력 기반의 메커니즘을 적용하여 강한 진동 출력을 생성할 수 있으면서도, 얇은 평판 타입으로 제작이 가능하여 중대형 디스플레이의 뒷면에 탑재하기에 적합한 진동 햅틱 액추에이터를 제안하고자 한다. 제안된 액추에이터는 방사형 판스프링에 매달려 전기적으로 접지된 Mass를 이격 되어 있는 상하의 전극에 의해 정전기력으로 상하로 교번하여 진동력을 증폭시킬 수 있는 구조로 개발되었다. 성능평가 결과, 개발된 액추에이터가 2개 내장된 Bar-Type 모듈에서 170 Hz에서 최대 3.3g의 우수한 진동 출력을 보여, 중대형 터치 디스플레이에서 햅틱 피드백 제공에 대한 가능성이 확인되었다.

• 문화기술의 융합
• /
• 제7권4호
• /
• pp.537-542
• /
• 2021

본 연구는 코로나19 이후 불가피하게 진행된 온라인 교양 수업에 대한 교수자의 만족도를 조사, 분석하여 교수자가 인식하는 온라인 교양 수업의 효과성을 알아보고자 한다. 이를 위해 경상남도 C대학의 교양대학에서 2021학년도 1학기 말에 실시한 수업 만족도에 관한 설문조사에 응답한 54명의 교수자를 대상으로 온라인 교양 수업의 전체적인 만족도와 이에 영향을 미칠 만한 변인들에 관해 연구하였다. 그 결과, 교수자는 온라인 교양 수업에 대해 전반적으로 부정적 인식을 갖고 있었다. 전체 만족도와 학습자와의 상호작용 변인에서는 각각 2.80, 2.87의 낮은 만족도를 보였으며, 그 외 요인들에 대해서는 전체 만족도보다 높은 만족도를 보였다. 또한 전체 만족도에 가장 큰 영향을 미치는 요인은 수업에 사용된 플랫폼에 관한 만족도였으며, 통계적으로도 유의미했다. 따라서 교수자의 온라인 교양 수업 만족도에 가장 큰 영향을 미치는 변수인 플랫폼에 교수자는 익숙해질 필요가 있으며, 이를 위해 대학에서는 교수자를 위한 사전 교육이 이루어질 필요가 있다. 본 연구는 일개 대학의 교수자를 대상으로 연구가 진행되었다는 점과 한정된 변수만을 측정하였다는 데에 한계가 있다.

• 한국의상디자인학회지
• /
• 제24권3호
• /
• pp.17-31
• /
• 2022

The purpose of this research is to suggest diverse directions for eco-friendly knit designing through analyzing the characteristics of Stella McCartney's knit designs. The first stage of the research was to explore the characteristics of eco-friendly fashion design based on literature review. The next stage was to categorize the characteristics of eco-friendly design found in Stella McCartney' knit fashion based on the precedent analysis. The data collected showed 274 examples from 40 Stella McCartney collections, including Spring, Resort, Pre-Fall, and Fall Ready-to-wear collections between 2013 and 2022. All information was collected using www.vogue.com. As a result, the characteristics of Stella McCartney's knit design were classified into four directopms: 1) Perpetual Naturalism, 2) Cultural Complexity, 3) Practical Functionality, and 4) Subcultural Reproducibility. The first characteristic, 'Perpetual Naturalism' values the continuous symbiosis between animals and human beings, thereby protecting global environmental value. Stella McCartney's knit design continuously showed a longing for nature's beauty through fashion design, which allowed people to enjoy the meaning of symbiosis between human beings and animals. Second, 'Cultural Complexity' is the characteristic that appears in Stella McCartney's knit fashion design when collaborating with various artists and/or mixing traditional knit motives inspired by traditional cultures and retro moods. Third, 'Practical Functionality' is the design characterisitic that allows items to be worn for a long time as it is comfortable, simple, and practical. Stella McCartney's knit designs pursue easy-to-wear designs that are comfortable and have practical designs with simple details. Lastly, 'Subcultural Reproducibility' showed in Stella McCartney's knit designs reflect Hippie culture, which pursued a rejection of conventional values, and promoted sustainable energy. This culture peaked in the 1960s and 1970s, when 'Beatles' were mainly working. Additionally, retro styled knit designs inspired by other various music genres from the 1980s and 1990s appeared in this category as well.

• 복식문화연구
• /
• 제31권4호
• /
• pp.504-518
• /
• 2023

The objective of this study was to explore the symbolism associated with phoenix patterns in China and the temporal aesthetic characteristics of these patterns found in Dunhuang Mogao Grottoes. The study involved collecting examples of clothing designs featuring phoenix patterns from China Fashion Week and the Vogue website, spanning from spring and summer of 2016 to fall and winter of 2022. After collecting and organizing these examples, representative cases were selected for analysis. The objective was to identify effective techniques for incorporating phoenix patterns within the context of Dunhuang Mogao Grottoes and provided insights for future clothing design and textile pattern design research. Phoenix patterns boasted a lengthy history and were laden with symbolic meaning. Early renditions of phoenix patterns found at Mogao Grottoes in Dunhuang were relatively simplistic in design, mainly employing elements like rhythm, coordination, balance and symmetry to convey a sense of nature and gravity. Over time, these patterns evolved under the influence of the prevailing cultural backdrop, employing repeated emphasis to portray notions of abundance and tenacity. Furthermore, regarding the use of phoenix patterns in clothing, there were four prevalent expression techniques: embroidery, beading, printing, and knitting. Traditional techniques like embroidery and beadwork often prioritized aesthetic features like coordination, emphasis, and symmetry, thereby showcasing the opulent characteristics of phoenix patterns. On the other hand, printing and knitting techniques used a single phoenix pattern or a modified version to simplify designs by emphasizing or repeating aesthetic characteristics while adhering to a modern artistic approach.

• 문화기술의 융합
• /
• 제9권4호
• /
• pp.161-170
• /
• 2023

본 연구에서는 전통 판화의 디지털 전환을 위해 전통 판화의 문화적 함의와 형식적 특징 등 판화 예술만이 가진 고유한 매체 특성을 지키는데 중점을 두고 전통 판화 제작에 증강현실 기술을 적용하는 방법을 제한하고 있다. 이를 위해 디지털 전환 시대에 전통 판화 예술과 증강현실 기술의 융합 의도를 이해할 수 있도록 증강현실 작품을 4가지 유형으로 구분하고 여러 나라의 AR 작품 사례를 분석하였다. 이를 통해 증강현실 기술과 전통 판화의 결합 방식과 디자인 방향을 결정하였다. 또한 저자의 작품 "봄, 여름, 가을, 겨울"을 기반으로 한 AR 판화 작품을 완성하여 증강현실 기술이 판화 발전에 충분한 역할을 할 수 있음을 입증하였다. 우리는 이 연구를 통해 AR 판화는 보다 확장된 스토리를 제공하여 몰입감 있는 판화 예술작품으로써의 가능성과 그 가치를 확인할 수 있었다.