http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 윤장택 (검색결과 26 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
-
방사무늬김 색소변이형 사상체의 생체 가시부 흡수스펙트럼
최성제,신종암,윤장택 여수대학교 1998 論文集 Vol.12 No.2
Comparative study was made on absorption spectra of the sporothallus of the wild-type (U-511) plant, and the red-type (H-25), the green-type (C-O giant), the yellow-type (ZY-1), the violet-type (ZV-1), the gray-type (ZGr-1), the light red-type (ZLR-1), the light green-type (C-31) and the light yellow-type (ZLY-1) mutants in P. yezoensis. The absorption was recorded with a double monochrometer recording spectrophotometer (Hitachi U-3210) not equipped with an integrating sphere attachment or a head-on photomultiplier. The red-, the green-, the yellow-, the gray- and the light yellow-type mutants showed the spectra having two absorption maxima in 530-583 nm region. The red- and the green-type mutants had the spectra with markedly low absorption in a 380-750 nm region. The violet- and the gray-type mutants were characterized by higher PE/Chl. α and PC/Chl. αratios. The light yellow-type mutant was marked by lower PE/Chl. α and PE/PC ratios, while the gray- and the violet-type by higher PE/Chl. α and the gray-type by PE/PC ratios. It is inferred : that the light yellow-type mutants might result from qualitative and quantitative variations of phycoerythrin : that the light yellow-type mutants might originate from qualitative variation of phycoerythrin and quantitative variation of chlorophyll α: that the violet-, the light green- and light yellow-type mutant might arise from quantitative variation of chlorophyll α.
-
갈조식물 뜸부기(Pelvetia siliquosa)의 영양기관 및 생식기관의 저장물질
윤장택,신종암 여수대학교 1998 論文集 Vol.13 No.2
The reserve substances of Pelvetia silipuosa, which were collected at Sunyoo island, western coast of Korea, in May 4, 1998, were investigated by using the vegetative and reproductive organs. The differences between receptacles and growing branches constituents were observed. Receptacles had a higher content of water, but they had two times lower content of ash than growing branches. The protein content of growing branches and receptacles were 6.87±0.69g and 6.56±0.41g, and the glucose 319.3±15.8㎎/100 g and 377.7㎎/100g. The laminarin of receptacle were 22.86±0.81g/100g and growing branches were 22.41±0.69g, which contained the highest of all constituents. The mannitol were 7.67±0.12g and 6.63±0.32g in receptacle and growing branches.
-
김미진,윤숙영,장택원 인간식물환경학회 2023 인간식물환경학회지 Vol.26 No.4
Background and objective: Recently, social interest in indoor plants (houseplants) has been increasing. This study wasconducted to determine consumer preferences for houseplants by surveying their perception of houseplants, also referredto as “pet plants” using a conjoint analysis method. Methods: For the conjoint analysis, Attribute 1 was defined as the type of houseplants, which was divided into four levels:orchids, oriental orchids, general foliage plants, and variegated foliage plants. Attribute 2 was set as the shape of pots andwas classified into two levels: square and round. Attribute 3 was set as the material of pots, and was divided into four levels:earthenware, ceramic, plastic and onggi (Korean style earthenware). Sixteen profiles were extracted through theorthogonal design using the SPSS Statistics. The survey was conducted online in December 2021, and the responses of320 out of 332 respondents were analyzed, after unclear responses were excluded. Results: A conjoint analysis of the preference for houseplant products was conducted using part-worth function models. When purchasing houseplants, it was found that the material of pots (53.0%) was considered as the most importantattribute, followed by the type of plants (34.0%), and the shape of the pots (13.0%) (Pearson's R = .991, p = .000). Foliageplants (part-worth utility = .143) for the type of plants, round shape (part-worth utility = .056) for the shape of pots, andceramic (part-worth utility = .284) for the material of pots were preferred as a priority. Clusters with similar part-worthswere established using the coefficients representing the estimated part-worths for each attribute derived from a conjointanalysis, as a variable. Cluster 1 was a group of 153 people that had 109 females (36.6%), 68 people in their 50s (22.8 %),59 bachelor's degree holders (19.8 %), and 42 workers in flower business (14.1 %) as the majority for each demographicitem. They preferred variegated foliage plants in round-shaped ceramic pots. Cluster 2 was a group of 104 people with 71females (23.8%), 44 people in their 50s (14.8%), 47 bachelor's degree holders (15.8%), and 30 flower-related industrialworkers (10.1%) for the largest share. They preferred foliage plants in round-shaped earthen pots. Cluster 3 was a groupof 41 people with 32 females (10.7%), 17 people in their 50s (5.7%), 25 bachelor's degree holders (8.4%), and 9 officeworkers (3.0%) and 9 workers in flower businesses (3.0%) for the largest share. They preferred general foliage plantsplanted in round-shaped ceramic pots. Conclusion: In this study, consumers' perceptions of pet plants were confirmed. The findings can be used as basic data forthe development of pet plant products, which is likely to aid houseplant producers in creating new income sources, givingpositive effects to differentiated plant producers and flower shops
-
A Meta-analysis of Horticultural Therapy Programs for Children: Focusing on Journal Articles
김종혁,윤숙영,장택원 인간식물환경학회 2023 인간식물환경학회지 Vol.26 No.5
Background and objective: This study analyzed the effects of horticultural therapy programs for children using metaanalysis. It aims to provide logical grounds and basic data for practical intervention plans in educational settings. Methods: For analysis, out of total 498 papers published in journals from 2000 to 2022 under the keywords 'gardening (orhorticulture) for children' and 'elementary gardening (or horticulture)', 35 articles were finally selected and analyzed,excluding those redundant or integrated with other age groups or programs. Results: First, the overall average effect size of horticultural therapy programs for children was 0.795, which was a mediumsize. Second, the average effect size for each dependent variable was the largest in the cognitive domain at 1.153, followedby the social domain, the psycho-emotional domain, and the physical domain. Third, the average effect size according tothe grade of the subjects was the largest at 0.955 in the upper grades, followed by the lower grades and mixed grades. Fourth, as a result of meta-regression analysis, shorter time per session resulted in higher effectiveness of horticulturaltherapy programs for children (p = .001). Conclusion: In this study, the meta-analysis results showed that the most effective way to increase children's activityeffectiveness in horticulture activities using plants is to conduct activities once a week, for 10 sessions or less, and witha time of less than 60 minutes per session.
-
정여진,김미진,장택원,윤숙영 인간식물환경학회 2020 인간식물환경학회지 Vol.23 No.5
Background and objective: This study conducted a conjoint analysis on early childhood teachers to find out their preferences in horticultural activities that are used as a means of education in early childhood education. Methods: For the conjoint analysis, five attributes of horticultural activities were selected. Attribute 1 was method of horticultural activities, divided into two levels: exclusive and integrated horticultural activities. Attribute 2 was object of horticultural activities, divided into three levels: fruit crops, vegetable crops, and floricultural crops. Attribute 3 was activity type, divided into three levels: big and small group, free choice, and outdoor play. Attribute 4 was place for horticultural activities, and divided into two levels: indoors and outdoors. Attribute 5 was time for horticultural activities, divided into two levels: 30 minutes and 30-60 minutes. The orthogonal design was used to extract 20 profiles, after which we conducted a survey on 320 early childhood teachers and analyzed the valid responses from 257 teachers. Results: The preference of early childhood teachers showed highest importance in object (29.1%), followed by activity type (23.2%), activity method (17.4%), time (16.1%), and place (14.2%) (Pearson’s R = .591, p = .008). By level of each attribute, the importance was high in exclusive horticultural activities for activity method, big and small group for activity type, vegetable and floricultural crops for object, indoors for place, and 30 minutes for time. Conclusion: The horticultural program preferred by early childhood teachers is comprised of big and small group activities using vegetable and floricultural crops, carried out indoors for 30 minutes as an exclusive class.
-
The Current Trends of Phycocultivation in Korea
Yang, Han-Choon,Shin, Jong-Ahm,Yoon, Jang-Taek,Koh, Nam-Pyo 여수대학교 1998 論文集 Vol.13 No.2
大韓民國에 있어서의 海藻栽培는 15世紀의 김 栽培가 그 嚆矢이다. 오랫동안 김 만이 栽培되어 왔으나 1960年代에 미역과 다시마 栽培가 시작되어, 現在 톳, 파래, 매생이 等의 완전 또는 不完全栽培가 이루어지고 있다. 또한, 풀등가사리, 갈래곰보 等의 栽培試驗도 이루어지고 있다. 이 報告에서는, 이들 海藻의 栽培工程圖를 簡單히 나타내고, 栽培에 있어서의 問題點을 簡單히 考察한다.
-
한국산 거머리말(Zostera Marina L.)의 해류에 대한 형태적 적응
임동옥 ( Dong Ok Lim ),윤장택 ( Jang Tak Yun ),한경식 ( Kyung Shik Han ) 한국환경생태학회 2009 한국환경생태학회지 Vol.23 No.5
The main purpose of this research is to prepare and provide basic materials for the propagational strategy of eelgrass by investigating on the morphological adaptation of Korean Zostera marina to ocean currents. An eelgrass plant mainly consists of rhizome, leaf sheath, leaves and roots. The rhizome is the horizontal stem of the plant that serves as the backbone from which the leaves and roots emerge. The leaf sheath is the bundle at the base of the leaves that holds the leaves together, protecting the meristem, the primary growth point of the shoot. Leaves originate from a meristem which is protected by a sheath at the actively growing end of the rhizome. As the shoot grows, the rhizome elongates, moving across or within the sediment, forming roots as it progresses. The aggregated leaves from the leaf sheath are found to have two cell layers on one side and multiple layers of airy tissues called aerenchyma on the other. The aerenchyma tissues are developed in multi-layered cell structures surrounding the veins which are formed in the leaf sheath. Generative shoots are made of rhizomes, which are circular or ovoidal, stem, and spathe and spadix. The transverse section of rhizome and the stem and central floral axis is found to be circular, ovoid and in the shape of convex respectively, and the vascular bundle, which is a part of transport system, has one large tube in the center and two small tubes on both sides. The layers of collenchyma cells numbered from 12 to 15 in the stem, and from 7 to 12 in the rhizome. The seed coat is composed of sclereids, small bundles of sclerenchyma tissues, which prevent the influx of sea water from the outside and help endure the environmental stress. In conclusion, alternative multi-layer structure in circular, convex type aggregated leaf base are interpreted to morphological adaption as doing tolerable elastic structure through movement of seawater. The generative shoots develop long slim stem and branches in circular or ovoidal shapes to minimize the adverse impacts of sea current, which can be interpreted as the plant`s morphological adaptation to its environment.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
