• 한국융합학회논문지
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• 제12권6호
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• pp.75-81
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• 2021

(연구배경 및 목적)도시 발전은 친환경 산업 분야에도 큰 영향을 미치게 되었다. 공공 장소환경에서 시민들은 여러 분야에서 스트레스를 받고 있어 진정으로 자연 생태 환경이 필요하게 되었다. 따라서 건물 내부의 도시환경 공간을 식물과 함께 호흡하는 친환경적인 도시공공 시설로의 환경개선이 필요하다. 이를 위해 수직정원을 통해 도시환경개선을 이룰 수 있음을 보여주고 이를 통해 수직정원 대중화에 기여하고자 한다. (연구방법) 이를 위해 현재 도시의 공공장소 환경의 문제점을 분석하고, 그 문제점 보완을 수직정원을 중심으로 살펴볼 것이다. (연구결과) 도시의 공공장소환경에 대한 연구 결과 우울한 환경, 열악한 공간 활용, 희미한 색상, 열악한 공기 질 등의 문제점을 발견했고 이를 보완하기 위해 수직정원을 조성하여 쾌적한 쉼터를 제공하고자 했다. 이러한 수직정원은 도시공공장소에 심미성 개선, 사회 가치 증가, 건물의 단열 및 방음 효과, 도시 열섬 효과 감소, 도시 녹색 환경 증가 등의 영향을 가져왔다. (결론) 본 연구는 공공 장소공간에서 수직정원을 이용하여 더욱 쾌적하고 정신건강과 신체적인 건강을 함께 공유하는 공공장소공간을 디자인하는 것이다.

• 치위생과학회지
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• 제21권2호
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• pp.96-103
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• 2021

Background: We aimed to investigate the effect of Citrous limon extract (CLE) on oxidative stress-induced cytotoxicity and nitric oxide (NO) generation and the tooth bleaching effect of CLE as a substitute for hydrogen peroxide (H₂O₂) and determine the feasibility and application of CLE as a safe and effective natural tooth bleaching agent. Methods: The protective effect of CLE on H₂O₂-induced cytotoxicity in Raw264.7 macrophages was investigated by the MTT assay. The inhibitory effect of CLE on the generation of H₂O₂-induced NO was confirmed by the NO assay, and the changes in inducible nitric oxide synthase (iNOS) protein expression were confirmed by western blotting. Stained bovine teeth were treated with/without 15% and/or 35% CLE and H₂O₂, 15% sodium bicarbonate (NaHCO₃) for 3 hours, and were irradiated with/without bleaching light (BL) for 15 minutes. The color change of the treated bovine tooth surface was measured using a colorimeter. Results: The viability of Raw264.7 cells treated with each concentration of CLE and 500 μM H₂O₂ significantly increased as CLE increased, and NO generation and iNOS protein expression were significantly reduced in cells treated with 300 ㎍ CLE+/500 μM H₂O₂+ and 300 ㎍ CLE+/500 μM H₂O₂+/150 ㎍ NaHCO₃+. The bleaching effect of 35% CLE+ was higher than that of 15% CLE+ and 15% NaHCO₃+, and the effect was similar to that of 15% H₂O₂+. The 35% CLE+/15% NaHCO₃+ showed the greatest bleaching effect and was higher than that of the groups irradiated with the BL. The greatest bleaching effect was observed with 35% CLE+/15% NaHCO₃+, followed by 35% H₂O₂+/BL+. Conclusion: CLE inhibited oxidative stress-induced cytotoxicity and NO generation in Raw264.7 cells and, could replace H₂O₂, which causes side effects and risks in teeth breaching treatment. It showed greatest teeth bleaching effect when combined with NaHCO₃. CLE is an effective and safe natural tooth bleaching substitute.

• 인간식물환경학회지
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• 제23권6호
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• pp.603-614
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• 2020

Background and objective: This study was conducted to understand urban residents' perception of indoor plants in order to assist in the preparation of guidelines for growing plants indoors. Methods: Questionnaires were distributed to urban residents currently growing plants or with experience of growing plants. The data of 247 respondents were subjected to analysis to assess their level of interest and ability with regard to growing plants, and their recognition of the selection and function of plants. Results: Respondents showed high interest in growing plants at a level of 6.77, but their ability was moderate. This suggests that information regarding plant maintenance should be provided to urban residents. They recognized the function of plants for improving the environment as important, and expected that indoor plants would improve their mood and visual experience. Satisfaction with growing plants was high from an emotional perspective. They recognized that the function of air purification function was important even if the actual performance or effect was not great. This indicates that the function of air purification should be emphasized more. As the result of the IPA, plants should be selected in consideration of morphological characteristics such as leaf, flower and fruit, and continuously managed to maintain their characteristics. Since the performance of pots was less satisfactory compared to their importance, they should be selected so that they harmonize better with plants and are of the appropriate size to fit the space. The type of plants is an important factor in plant selection in order to perform an environmental function, and the flower color and pot size are important in terms of aesthetics and healing. Conclusion: When horticulture information on indoor plants is provided to urban residents, first, it should be provided to satisfy the functions of the plants required by urban residents and in order to promote and maintain the proper growth of plants. Second, various contents that utilize components should be developed to achieve plant function so that resident can determine the function of plants and select the type, quantity, and shape of plants to achieve the desired function.

• 셀메드
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• 제11권4호
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• pp.21.1-21.9
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• 2021

Background: Unani System of Medicine (USM) has its origin to Greece. To ensure and develop the quality, authenticity of Unani drugs, standardization on modern analytical parameter is essential requirement for drugs. Objectives: The aimed of the present study was to develop a standard profile of "Qurṣ-e-Mafasil" by systematic study through authenticated ingredients, pharmacognostic identification followed by physicochemical, TLC, HPTLC fingerprinting analysis as per standard protocol. Material and Methods: In this study three batches of "Qurṣ-e-Mafasil" QM were prepared by standard method as per UPI had been followed by organoleptic properties of formulation such as appearance, color, odor, taste. Powder Microscopy and physicochemical studies were carried out such as Uniformity of weight, Friability, Disintegration time, hardness, LOD, ash vales and extractive values in like aqueous, alcohol & hexane. Further qualitative tests such as Thin-Layer Chromatography (TLC), and High-Performance Thin Layer Chromatography (HPTLC) studies were also carried out to develop fingerprint pattern of the alcoholic solvent extract of QM. Phytochemical screening was carried out in different solvent extracts such as alcoholic, aqueous and chloroform extracts to detect the presence phytoconstituents in the formulation QM. Heavy metals, Microbial Load Contamination and pesticidal residues were also determined. Results: Qurṣ-e-Mafasil showed tablet-like appearance, light brown colour, mild pungent odour and acrid taste. Uniformity of weight (mg), friability (rpm), and hardness (kg/cm) and disintegration time was ranged between (500 to 503), (0.0340 to 0.038), (8.40 to 8.67) and (4-5 minutes) respectively for the three batches. Loss in weight on drying at 105℃ was ranged between (8.3425 to 8.7346). Extracted values were calculated in distilled water ranged between (30.9091 to 31.4358), hexane (1.1419 to 1.4281), and alcohol (3.3352 to 3.3962). The ash values recorded were ranged between (3.7336 to 3.8378), and acid insoluble ash (0.5859 to 0.6112).

• 한국작물학회지
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• 제33권s01호
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• pp.86-97
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• 1988

Sesame(Sesamum indicum L.) is probably the most ancient oilseed crop known in the world. The seed of sesame is used in a variety of ways as food. The whole seed may be eaten raw, either roasted or parched, or fed to birds and stock. Sesame oil is used as a salad or cooking oil, in shortening, margarine and in the manufacture of soap. Minor uses are as a fixative in the perfume industry and formerly as a carrier for fatsoluble substances in pharmaceuticals such as penicillin. One of the minor constituents of sesame oil, sesamin, is used for its synergistic effect in pyrethrin insecticides, in addition of a small quantity of this substance markedly increases the effectiveness of fly sprays. The meal remaining after oil extraction can be used as and animal feed-stuff or as manure. In general sesame meal is considered to be equal to cottonseed or soybean meal as a protein supplement for livestock and poultry. It is especially high in certain amino-acids such as methionine, which is low in soybean meal, and thus can be combined with it or similar meal to form a more balanced ration. An attempt to summarize the literature review on quality improvement of sesame was made to discuss the accomplishments of the past and perspectives in the future. The reviews on quality improvement of sesame were mainly discussed in connection with the cultural practices and genetic informations in current status. The emphasis focussed on environmental variation of quality in cultural practices, such as harvest time, variety by location, climatic condition, fertilizer application, and growth regulator treatment. On the genetic variation of quality, it was discussed on variety background, mutation breeding, correlations, and inheritance of quality related characteristics. It also was discussed on relationship between quality and plant traits, storage condition or period, and seed coat color. Moreover, current research status were reviewed on some minor elements such as sesamin, oxalic acid, and trypsin inhibitor. As a results of the review, the lack of an effort to quality improvement in each utilization area was indicated as a problem area. More active efforts for the improvement of quality were also insufficient to incorporate the available genes for quality in breeding method or collection and analysis of breeding materials. Therefore, researches in the future would be recommended to emphasize on these problem areas.

• 문화기술의 융합
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• 제9권2호
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• pp.429-436
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• 2023

중국 전통음악은 토착색이 짙고 자신만의 독특한 사고방식과 특징을 갖고 있다. 선형적 사유는 중국 전통음악의 주요 특징이라는 공감대가 이미 형성되어 각종 전통 다성부(多聲部)·단성부(單聲部) 음악 모두에 구현되었다. 주로 단선율(單旋律) 혹은 단음 음악의 형태로 표현된다. 이러한 중국 전통음악의 선형적 사유는 여러 방면의 요인에 의해 영향을 받아 형성된다. 예를 들어 민족 문화, 지리적 자연환경, 종교철학적 배경, 중국 전통 기보법(記譜法), 전통 악기의 개성적 특성, 율제(律制), 조성(調性) 및 전승방식 등과 관련 있다. 이러한 사유는 입체적 사유를 추구하는 서양 고전음악과 다른 측면이 있는데, 서양음악은 화음의 화합성, 음색 및 텍스쳐의 조화성, 구조의 논리성 및 정체성 등을 중시하며 공간의 종횡적 결합을 강조한다. 그러나 중국 전통음악은 선율의 수평적 발전, 선조의 유창함, 구조의 연속성 등을 중시한다. 우리는 본 논문에서 중국 전통음악의 선형적 사유의 원인을 분석하여 교육적 측면에 더욱 유용하게 활용할 수 있도록 하고 민족음악에 대한 지식을 전수하여 전통음악의 계승과 발전을 촉진하고자 한다.

• 문화기술의 융합
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• 제9권3호
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• pp.825-834
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• 2023

인터넷 쇼핑에서 상품의 사진과 동영상을 대체해 3D콘텐츠와 웹 3D 소프트웨어로 사용자에게 친숙한 이미지를 제공하려는 시도가 이어지고 있다 본 연구에서는 2D 이미지를 3D로 변환하여 고객들이 다양한 위치에서 상품을 파악할 수 있는 웹 3D 기술에 접목시키고 변환에 필요한 비용과 계산 시간을 줄일 수 있는 자동 변환기술을 제안하였다. 단 8대의 카메라 만을 사용하여 마네킹을 회전하는 턴테이블 위에 올려 놓고 촬영하는 시스템을 개발하였다. 이러한 시스템에서 촬영한 이미지에서 옷 부분만 추출하기 위해 U-net을 이용하여 마커를 제거하고, 배경 영역과 마네킹 영역의 컬러 특징 정보를 파악하여 옷 영역만을 추출하는 알고리즘을 제안하였다. 이 알고리즘을 이용하면 이미지를 촬영한 후 옷 영역만을 추출하는데 걸리는 시간이 이미지 하나당 2.25초며, 한 개의 옷에 대해 64장의 이미지를 촬영하는 경우에 총 144초(2분 4초)가 소요되어 매우 우수한 성능으로 3D오브젝트를 추출할 수 있다.

• 한국정보기술학회 영문논문지
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• 제9권1호
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• pp.115-125
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• 2019

In this paper, the image is received from the camera and the lane is sensed. There are various ways to detect lanes. Generally, the method of detecting edges uses a lot of the Sobel edge detection and the Canny edge detection. The minimum use of multiplication and division is used when designing for the hardware configuration. The images are tested using a black box image mounted on the vehicle. Because the top of the image of the used the black box is mostly background, the calculation process is excluded. Also, to speed up, YCbCr is calculated from the image and only the data for the desired color, white and yellow lane, is obtained to detect the lane. The median filter is used to remove noise from images. Intermediate filters excel at noise rejection, but they generally take a long time to compare all values. In this paper, by using addition, the time can be shortened by obtaining and using the result value of the median filter. In case of the Sobel edge detection, the speed is faster and noise sensitive compared to the Canny edge detection. These shortcomings are constructed using complementary algorithms. It also organizes and processes data into parallel processing pipelines. To reduce the size of memory, the system does not use memory to store all data at each step, but stores it using four line buffers. Three line buffers perform mask operations, and one line buffer stores new data at the same time as the operation. Through this work, memory can use six times faster the processing speed and about 33% greater quantity than other methods presented in this paper. The target operating frequency is designed so that the system operates at 50MHz. It is possible to use 2157fps for the images of 640by360 size based on the target operating frequency, 540fps for the HD images and 240fps for the Full HD images, which can be used for most images with 30fps as well as 60fps for the images with 60fps. The maximum operating frequency can be used for larger amounts of the frame processing.

• Journal of Veterinary Science
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• 제25권2호
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• pp.29.1-29.11
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• 2024

Background: Preservation of biological tissues has been used since ancient times. Regardless of the method employed, tissue preservation is thought to be a vital step in veterinary surgery teaching and learning. Objectives: This study was designed to determine the usability of chemically preserved cadaveric equine heads for surgical teaching in veterinary medicine. Methods: Six cadaveric equine heads were collected immediately after death or euthanasia and frozen until fixation. Fixation was achieved by using a hypertonic solution consisting of sodium chloride, sodium nitrite and sodium nitrate, and an alcoholic solution containing ethanol and glycerin. Chemically preserved specimens were stored at low temperatures (2℃ to 6℃) in a conventional refrigerator. The specimens were submitted to gross and organoleptic assessment right after fixative solution injection (D0) and within 10, 20, and 30 days of fixation (D10, D20, and D30, respectively). Samples of tissue from skin, tongue, oral vestibule, and masseter muscle were collected for histological evaluation at the same time points. Results: Physical and organoleptic assessments revealed excellent specimen quality (mean scores higher than 4 on a 5-point scale) in most cases. In some specimens, lower scores (3) were assigned to the range of mouth opening, particularly on D0 and D10. A reduced the range of mouth opening may be a limiting factor in teaching activities involving structures located in the oral cavity. Conclusions: The excellent physical, histologic, and organoleptic characteristics of the specimens in this sample support their usability in teaching within the time frame considered. Appropriate physical and organoleptic characteristics (color, texture, odor, and flexibility) of the specimens in this study support the use of the method described for preparation of reusable anatomical specimens.

• 디자인학연구
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• 제19권5호
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• pp.119-128
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• 2006

미디어의 발전과 함께 시각표현은 정지화면에서 동영상으로 그 영역이 확대되었다. 애니메이션 영화, TV CM, GUI 등과 같은 분야는 프레임이 누적된 가현운동 현상이 나타나면서 쇼트, 씬과 같은 단위 구조가 만들어지므로 정지화면에 비해 움직임이 필연적인 조형요소가 된다. 따라서 형태, 색채, 공간, 크기, 움직임과 같은 조형요소 중에서 움직임은 특히 중요한 요소로 부각된다고 볼 수 있다. 소쉬르(Saussure)가 설명한 기표와 기의의 관계처럼 이미지의 표현과 형식은 그 내용과 서로 제약을 주는 반면 상호 보완에 의해 하나의 기호로서 수용된다. 이는 움직임 역시 그 형식적 특성이 메시지가 담고 있는 내용에 어떠한 관여를 할 것이라는 추론을 가능하게 한다. 이를 분석하기 전 먼저 게슈탈트이론 중 '그룹핑의 원리'를 이론적 근거로 하여 동영상 시지각 실험을 실시하여 움직임과 타 조형요소의 관계를 조사하였다. 그 결과 약 70-80%의 피실험자가 '움직임'을 지각 상 중요한 그룹핑 단서로 생각하는 것으로 나타났다. 이러한 형식적 특성을 토대로 동영상의 구조를 분석했을 때 움직임은 커뮤니케이션 과정에서 메시지의 의미의 맥락을 유지하는데 영향을 준다. 사람이나 사물, 배경의 형태와 색 등이 변하더라도 움직임이 유사한 지향점을 가지면 그 대상의 정체성은 유지될 수 있다. 둘째, 움직임에 의해 형상(figure)으로서 대상이 부각되므로 내용의 명료성을 높여준다. 셋째 추후 정보처리에 있어서 유사한 움직임의 진행을 예측할 수 있는 지식표상으로 작용하게 된다. 넷째, 교차편집과 같이 둘 이상의 씬이 빠르게 전환되고 복잡한 편집구조를 가지더라도 움직임이 내용에 일관성을 부여하는 성격을 갖는다. 움직임은 기본적인 시지각적 반응으로서 입력되는 시각정보를 그룹화시키는 하나의 단서가 된다. 또한 영상 메시지의 구조적인 틀을 형성하는데 관계하여 자칫 현란하고 남용될 수 있는 시각적 표현에 질서를 부여하고 의미 작용에 명료함을 높이는 효율성을 가진다. 동영상은 본질적으로 시간성을 내포하므로 다수의 단위 구조가 조합된 담화를 가지며, 미디어믹스 환경에 의해 공통적이면서도 차별화된 표현이 요구되고 있다. 따라서 본 연구는 게슈탈트 이론의 그룹핑 원리를 동영상 범주로 확대하여 적용해 봄으로써 움직임이 다른 조형요소보다 부각되는 속성이 됨과 의미구조 형성에 영향을 줌을 분석하였으며, 이는 미디어 특성에 따라 각 영상분야에서 구조적 조형미와 새로운 영상표현을 개발하는 관점이 될 수 있음을 제안한다.