Park, Jong Yong;Yoo, Sung Young;Kang, Hong Gyu;Kim, Tae Wan
KOREAN JOURNAL OF CROP SCIENCE
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v.61
no.4
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pp.270-276
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2016
The objective of this study was to find a rapid determination of the hot air stress in maize (Zea mays L.) leaves using a portable chlorophyll fluorescence imaging instrument. To assess the photosynthetic activity of maize leaves, an imaging analysis of the photochemical responses of maize was performed with chlorophyll fluorescence camera. The observed chlorophyll imaging photos were numerically transformed to the photochemical parameters on the basis of chlorophyll a fluorescence. Chlorophyll a fluorescence imaging (CFI) method showed that a rapid decrease in maximum fluorescence intensity ($F_m$) of leaf occurred under hot air stress. Although no change was observed in the maximum quantum yield ($F_v/F_m$) of the hot air stressed maize leaves, the other photochemical parameters such as maximum fluorescence intensity ($F_m$) and Maximum fluorescence value ($F_p$) were relatively lowered after hot air stress. In hot air stressed maize leaves, an increase was observed in the nonphotoquenching (NPQ) and decrease in the effective quantum yield of photochemical energy conversion in photosystem II (${\Phi}PSII$). Thus, NPQ and ${\Phi}PSII$ were available to be determined non-destructively in maize leaves under hot air stress. Our results clearly indicated that the hot air could be a source of stress in maize leaves. Thus, the CFI analysis along with its related parameters can be used as a rapid indicating technique for the determining hot air stress in plants.
International Journal of Computer Science & Network Security
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v.23
no.1
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pp.112-119
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2023
Traditionally used for networking computers and communications, the Internet has been evolving from the beginning. Internet is the backbone for many things on the web including social media. The concept of social networking which started in the early 1990s has also been growing with the internet. Social Networking Sites (SNSs) sprung and stayed back to an important element of internet usage mainly due to the services or provisions they allow on the web. Twitter and Facebook have become the primary means by which most individuals keep in touch with others and carry on substantive conversations. These sites allow the posting of photos, videos and support audio and video storage on the sites which can be shared amongst users. Although an attractive option, these provisions have also culminated in issues for these sites like posting offensive material. Though not always, users of SNSs have their share in promoting hate by their words or speeches which is difficult to be curtailed after being uploaded in the media. Hence, this article outlines a process for extracting user reviews from the Twitter corpus in order to identify instances of hate speech. Through the use of MPCA (Modified Principal Component Analysis) and ECNN, we are able to identify instances of hate speech in the text (Enhanced Convolutional Neural Network). With the use of NLP, a fully autonomous system for assessing syntax and meaning can be established (NLP). There is a strong emphasis on pre-processing, feature extraction, and classification. Cleansing the text by removing extra spaces, punctuation, and stop words is what normalization is all about. In the process of extracting features, these features that have already been processed are used. During the feature extraction process, the MPCA algorithm is used. It takes a set of related features and pulls out the ones that tell us the most about the dataset we give itThe proposed categorization method is then put forth as a means of detecting instances of hate speech or abusive language. It is argued that ECNN is superior to other methods for identifying hateful content online. It can take in massive amounts of data and quickly return accurate results, especially for larger datasets. As a result, the proposed MPCA+ECNN algorithm improves not only the F-measure values, but also the accuracy, precision, and recall.
General users who use smartphone apps often use the Vault app to protect personal information such as photos and videos owned by individuals. However, there are increasing cases of criminals using the Vault app function for anti-forensic purposes to hide illegal videos. These apps are one of the apps registered on Google Play. This paper proposes a methodology for extracting feature points through XML-based keyword frequency analysis to explore Vault apps used by criminals, and text mining techniques are applied to extract feature points. In this paper, XML syntax was compared and analyzed using strings.xml files included in the app for 15 hidden Vault anti-forensics apps and non-hidden Vault apps, respectively. In hidden Vault anti-forensics apps, more hidden-related words are found at a higher frequency in the first and second rounds of terminology processing. Unlike most conventional methods of static analysis of APK files from an engineering point of view, this paper is meaningful in that it approached from a humanities and sociological point of view to find a feature of classifying anti-forensics apps. In conclusion, applying text mining techniques through XML parsing can be used as basic data for exploring hidden Vault anti-forensics apps.
The Tartan, the representative check pattern and traditional costume of Scothand, is the most popualr checker which has inherited from the clans of the Scotch Highlands in the ancient times and continued to develop. It is a symbol of the Scotch culture and tadition and widely used in various ways according to status, birthplace purpose and use. Therefore, this study was intended to inquire into Tartan check. The purpose of this study attempted to make a systematic investigation of the characteristic of the Tartan check. the checker using vertical and horizontal lines which was the universal plastic element and inquire into it in terms of era, designers and combined works. By doing so, this study attempted to investigate the phase of the Tartan check in world fashion and further forecast the future of checker design applicable to the 21th-Century fashion. In addition it, attempted to investigate the features of Scottch costume unknown in our academic circles and inquire into the proless in while the Scottch has retained the originality of its own which suppressed by neighboring countries. This study could find out that the checker is the element of infinite applicability in the future. It is expected that the sophisticated and beautiful design using the checker will be presented by many Korean designer through the overall and systanatic study of the checker. On the other hand, to make an empirical study costume of other races, a comprehensive examination should be made of the social and cultural background against which locals are using their costume, through the survey of their real costume and on-spot research. It this respect, this study has some limitation in time and data collection. Besides the analysis of costume through materials and photos in museums as well as the study of cloth material and accurate colors was not con여cted in this in this study. This will remain to be study of in the future.
Background and objective: With increasing land use intensity in urban areas, apartment buildings have been recognized as a typical type of urban residence. In this study, the impacts of different views through a window on health-related responses were investigated using psychological and physiological parameters. Methods: Photos of three different types of views taken on low (2-12 m), middle (28-35 m), and high (over 54 m) floors of dense apartment building areas were used as visual stimuli. Twenty-two healthy adults participated in the indoor experiment. Semantic differential methods and profile of mood states were used as psychological tools. Autonomic nervous activity was evaluated using blood pressures, pulse rate and heart rate variability (HRV). Results: Analytic data showed different characteristics of psychological and physiological outcomes in three different apartment views. In the analysis of psychological parameters, significantly negative responses to the views on middle floors were found in the subscales of tension-anxiety and anger-hostility, compared to low floors. Significantly positive scores in the subscale of vigor were found on low floors with abundance of vegetation and high floors with a view of the sky. A significantly increased value of HF was found on low floors (2,294.96 ± 169.79), compared to the middle(1,553.45 ± 84.66) and high (1,523.02 ± 70.49) floors. Despite the high scores in openness and vigor, high floor views showed significantly higher LF/HF values (1.83 ± 0.09), the indicator of the sympathetic nervous system, than low (1.30 ± 0.07) and middle floor views (1.34 ± 0.06), which might be related to the unconscious fear of heights. Conclusion: Views from different heights in an apartment building can affect the psychological states of residents. Green space through the window may have a positive health outcome by reducing physiological stress.
Black has been the most important color of all since the ancient times when the recognition of black roused, as well as during most of the eras; and can especially be said as the main color which controlled the chronicles of fashion. The purpose of the study was to broaden the application of black color image make-up by inquiring into make-up design elemental characteristics of lines and textures, after classifying magazine illustrations and advertisement make-up images using black. The photos which made effective use of black among fashion illustrations, magazine advertisements after 2001 were classified in to each type, and make-up expression method and characteristics according to design element of each image type was analyzed. The conclusion of such study was the following. 'Erotic image' showed contrast effect between eye make-up and lip color by using pale tone or red color. 'Mannish image' emphasized form and texture of eyebrow by restraining the colors of eyelids with natural brown tone eye make-up; 'Modern image' expressed vague eyebrow to bring the sensation of the direction of eye shadow on eyelids and eye line as well as slant line to relief. 'Kitsch image' showed free and light imagery by creating unique hair style with various colors; expressing lips mostly with colors similar to skin tone or by restraining colors on lips. 'Decadence image' showed messy and foul sensation with unstandardized eye make-up and matt skin of shimmer, glossy and pale tone, also with black colored lips; 'Retro image' expressed reinterpretation of images from 1920${\sim}$1960 to contemporary styles.
Journal of The Korea Institute of Healthcare Architecture
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v.19
no.4
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pp.37-45
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2013
Purpose: With the rapid development of technology and individual life styles, Korea faces ever-increasing mental diseases caused by divorce, suicide, alcohol, drug addiction, and internet addiction. To reflect this, the quantitative expansion of mental health centers that make up is time. The purpose of this study is to understand the current situation of standard mental health centers by analysing Seoul's cases of mental health. First, this study presents the direction of mental health policy through specific examples about the function of public and private sectors. Second, advantages and disadvantages of the facilities will be delineated through in-depth comparisons and analyses, ultimately providing architectural quidelines for establishing future standard mental health center. Methods: Data were collected through literature research, field surveys, and expert interviews to standard mental health centers in Seoul. In the field investigation, we collected various data(architectural plan, dimension, photos) by visiting standard mental health centers. Data were analysed by content analysis. Results: The result of this study can be summarized into three points. The first one is that Mental health environment changing role of the mental health center is derived the spatial variations. The second one is that Standard Mental Health Center is divided into four sectors. Implications: It is necessary to give and architectural suggestion of mental health center in response to the proposal of the system.
The purpose of this study is to understand Qipao, that Chinese traditional women's cloth, and analysis the aesthetic characteristics of that. Joining WTO in 2002 and 2008 Beijing Olympic made China get the attention by the world and get the opportunity that advent of China style. Chinese fashion cultural contents have abundant meanings in internal or external, therefore characteristics aesthetic of Chinese traditional fashion had much influence in world fashion design. Qipao that has influence in contemporary fashion design could be used special fashion design data for China market. A variety of literature and prior researches for Qipao's history and transition process was studied. Internal and external documents, fashion magazines, internet information were investigated to study features of Qipao. Total 20 seasons fashion collections from 2000S/S to 2009F/W was examined, and selected 22 brands that showed Qipao style, after then extracted 418 photos among them. By the seasons, Eit showed 193 pieces in S/S and 225 pieces in F/W, and was put to practical use in F/W season than S/S. The results are as follows. The contemporary fashion collections shown in the Qipao style silhouette, detail, color, material, pattern and the results obtained by each, were in all respects diversity. In silhouette, including traditional tight silhouettes, 'H' silhouettes, boxy silhouette was such a variety. The five colors traditionally preferred color from the color was more of a tendency to be gorgeous. Modern reinterpretation of pattern designs by graphic pattern that has emerged. Also, shown in a contemporary fashion collection Qipao style leather material in application utilizing the glossy feel of a plastic material and has emerged feeling.
The purpose of this study is to analyze characteristics of residential architecture designed by Gwathmey Siegel in terms of their way of composing spaces and forms. Charles Gwathmey, one of the founders of Gwathmey Siegel, is a worldly famous architect who actively developed Neo-Modernistic architecture in his career. For this study, 15 major houses designed by Gwathmey Siegel were selected and analyzed in terms of their approaches on how to compose various spaces and forms, and how these approaches evolved as time passed. The analysis was mainly based on the drawings and photos of the houses published. The main characteristics found in this study can be summarized as follows: elevated LDK level, split-level composition, use of framing structure, layered space, and linear galleries as a spine of circulation with collaged volumes attached. It turned out these characteristics appeared, faded away, or evolved affecting each other. In early days, Gwathmey often elevated LDK level from ground level for providing privacy, views, and also for separating private rooms. Soon they composed spaces by splitting levels. It not only helped provide privacy where needed effectively, but made space composition more interesting. As sizes of the houses they designed grew, Gwathmey came up with the framing idea for expressing his original architectural language in larger scale. With the split-level composition, the framing method represented Gwathmey's in 70's. This framing introduced layers of interior spaces, and the layers started to break down the monumental framing into individual volumes by bringing in linear spine of circulation. These characteristics helped Gwathmey Siegel develop their own architectural language.
Journal of the Korean Institute of Landscape Architecture
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v.47
no.2
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pp.49-58
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2019
There have been studies on the satisfaction, preference, and post occupancy evaluation of urban parks in order to reflect users' preferences and activities, suggesting directions for future park planning and management. Despite using questionnaires that are proven to be affective to get users' opinions directly, there haven been limitations in understanding the latest changes in park use through questionnaires. This study seeks to address the possibility of utilizing the thirdgeneration SNS data, Instagram and Google, to compare behavior patterns and trends in park activities. Instagram keywords and photos representing user's feelings with a specific park name were collected. We also examined reviews, peak time, and popular time zones regarding selected parks through Google. This study tries to analyze users' behaviors, emerging activities, and satisfaction using SNS data. The findings are as follows. People using park near residential areas tend to enjoy programs being operated in indoor facilities and to like to use picnic places. In an adjacent park of commercial areas, eating in the park and extended areas beyond the park boundaries is found to be one of the popular park activities. Programs using open spaces and indoor facilities were active as well. Han River Park as a detached park type offers a popular venue for excercises and scenery appreciation. We also identified companionship characteristics of different park types from texts and photos, and extracted keywords of feelings and reviews about parks posted in $3^{rd}$ generation SNS. SNS data can provide basis to grasp behavioral patterns and satisfaction factors, and changes of park activities in real time. SNS data also can be used to set future directions in park planning and management in accordance with new technologies and policies.
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