• Journal of the Korean housing association
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• v.20 no.6
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• pp.135-143
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• 2009

The purposes of this study were to determine the actual state of the indoor air quality by measuring TVOC Concentration and surveying residents' responses in a newly built university dormitory and to analyze the influencing factors of IAQ. Field measurements on the concentrations of TVOC and HCHO were carried out three times at 4 week intervals in 3 rooms of a dormitory. A questionnaire survey was conducted on residents which inquired into the resident's lifestyle, their consciousness of IAQ, and the responses to SHS. According to the results, TVOC concentrations were 0.14~18.5 ppm and HCHO concentrations were 0.23~6.89 ppm during the 3 months following the completion of construction, showing a serious state in which standard levels are exceeded, though these levels seemed to decrease over time. The factors influencing the differences in the levels of TVOC and HCHO were the ventilation volume including infiltration, the heating temperature, relative humidity, or the use of living matter that include chemical ingredients. However, the residents rarely felt the symptoms of SHS and were not conscious of the importance of ventilation.

• Korean Journal of Human Ecology
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• v.3 no.2
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• pp.112-119
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• 2000

The purpose of this study is to investigate the bodice patterns by analyzing sensory evaluations. Anthropomatric data was collected between April and October of 2000. Total 283 body measurements were collected for this study including both direct and indirect measurements(29 variables from the direct anthropometric data. 5 variables from the indirect anthropometric data). Data were analyzing using percentiles. standard deviation and Anova. The appearance and fit of three kinds of bodice patterns (N. L. H type) were evaluated by expert panel and the subjects. The results of the anthropometric measurements and sensory evaluations are as follows : A significant differences (p$\leq$.001) in the height, width and girth Items was found. The results of the bodice pattern evaluations by expert panel indicates that a significant difference (p${\le}$.05) in the responses to the placement of the waist dart, the fit of the bust area and the placement o( the back shoulder dart for 20's and 30's. The result of the evaluations by subjects indicates that a significant difference (p${\le}$.05) in the responses to the placement of the waist dart for 40's. A significant difference (p${\le}$.05) in the responses to the suitability of the shoulder area among the age groups.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.45 no.5
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• pp.282-287
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• 2000

Soybean [Glycine max (L.) Merrill] crops, grown in a rice soybean rotation, can suffer when grown in soil with excessive moisture. The objective of this work were to determine the reduction in growth and yield, responses of vegetative and reproductive growth of soybean to excessive soil moisture achieved by prolonged irrigation. Responses of different cultivars were determined at growth stages from V6 to R8 to clarify the sensitive growth stages or characteristics to excessive soil moisture. Cultivar differences in response to excessive soil moisture condition were conspicuous in seed dry weight and harvest index (HI) but not in the response of seed number or pod number per plant. The timing of irrigation causing the condition of excessive soil moisture influenced the vegetative or reproductive traits. Soybean plants were more affected by irrigation commencing at the pre-flowering than at the post-flowering stage. Post-flowering irrigation did not reduce growth of vegetative organs significantly; in fact the growth of stems and leaves was facilitated by the prolonged irrigation commencing at flowering. Differences between cultivar response to prolonged irrigation were assumed to relate to the reduced amount of assimilates translocated to the reproductive organ.

• Korean Journal of Acupuncture
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• v.26 no.4
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• pp.67-75
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• 2009

Objectives : To identify whether and how Korean people understand 'qi deficiency' and related symptoms. Methods : We developed a questionnaire based on the experts' comments and modification asking understanding of 'qi deficiency' and symptoms or situations related with it. Total 128 workers at community healthcare centres across the country completed the questionnaire. They were asked if they know the meaning of the word 'qi deficiency' and to give at least three symptoms or situations that they conceive are related with 'qi deficiency'. The responses were collected and descriptive and frequency analyses were performed. Results : Approximately 79.7% of responders answered that they understand the meaning of the word 'qi deficiency' and of them, 71.6% reported that they experience 'qi deficiency' sometimes or more. Regarding somatic or condition-related responses in qi deficiency, lack of power or energy (26.6%), tiredness or fatigue (22.2%), dizziness (7.2%) or sweating (6.3%) were the most frequently reported symptoms. They related symptoms such as loss of appetite (4.3%) or easily catching colds (2.4%) with qi deficiency. Factors described in traditional pattern recognition of qi deficiency were not exactly matched with the responses from this survey. Conclusions : Korean people have rather a broad concept of qi deficiency covering a range of symptoms and this should be taken into account in developing a deficiency assessment tool.

• Journal of the Korean Society of Clothing and Textiles
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• v.45 no.4
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• pp.612-629
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• 2021

This research started from hypothesizing that people hesitate to use a fashion sharing economy service due to the consumers' concerns or fears about contagion. The study explores how backstage information can affect consumers' responses to this service, especially their perceived risk and transparency. An online experiment was conducted to test the research questions through Amazon MTurk. The data of 351 participants in total were analyzed. The results show that backstage information, presenting hidden information with images of various product journeys, from packaging to return and laundry, had a positive effect on transparency as well as perceived risk. Both transparency and perceived risk positively affected the service's perceived honesty, and honesty also positively affected consumer engagement. Through the findings that providing backstage information had a positive effect on perceived risk, but the risk had a positive effect on perceived honesty, we can expect the reaction to the information itself to possibly be negative. However, consumers can consider the service as honest at least, which opens the possibility of expecting positive consumer attitudes or responses in a market in the near future.

• International journal of advanced smart convergence
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• v.10 no.4
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• pp.183-197
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• 2021

Xiaohongshu is called China's Instagram and is leading overseas product purchases and culture sharing. The purpose of this study is to investigate the structural relationship between Xiaohongshu service quality, emotional response perceived by users, and adhesion to confirm the impact on Xiaohongshu's adhesion at a time when non-face-to-face activities due to COVID-19 have increased. This study distributed and collected questionnaires from October 1st to October 7th, 2021, targeting 210 online shopping mall users. The research results were derived from a total of 206 questionnaires, excluding 4 questionnaires such as omission of record contents, and the causal relationship of the existing PAD model was attempted to be reported by revising and supplementing the existing PAD model. As a result of the study, first, it was confirmed that design among service quality had a positive effect only on ventilation during the user's emotional response. Second, it was confirmed that information among service quality had a positive effect on pleasure and ventilation among users' emotional responses. Third, it was found that security among service quality had a positive effect on pleasure among users' emotional responses. Finally, it was found that pleasure and ventilation had a positive effect on adhesion in the user's emotional response. Based on this result, it is expected that it will be used for operation on other online platforms than the plan for the development of Xiaohongshu.

• Smart Structures and Systems
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• v.30 no.4
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• pp.397-410
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• 2022

It is essential to monitor the working conditions of bolt-connected joints, which are widely used in various kinds of steel structures. The looseness of bolts may directly affect the stability and safety of the entire structure. In this study, a guided wave-based method for bolt looseness detection and localization is presented for a joint structure with multiple bolts. SH waves generated and received by a small number (two pairs) of magnetostrictive transducers were used. The bolt looseness index was proposed based on the changes in the reconstructed responses excited by the time reversal signals of the measured unit impulse responses. The damage locations and local damage severities were estimated using the damage indices from several wave propagation paths. The back propagation neural network (BPNN) technique was employed to identify the local damages. Numerical and experimental studies were conducted on a lap joint with eight bolts. The results show that the total damage severity can be successfully detected under the effect of external force and measurement noise. The local damage severity can be estimated reasonably for the experimental data using the BPNN constructed by the training patterns generated from the finite element simulations.

• Journal of Information Technology Services
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• v.23 no.1
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• pp.81-95
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• 2024

ChatGPT, a generative artificial intelligence(AI) technology that analyzes conversations to identify users' intentions and generates responses in consideration of the context of the conversation, is attracting attention from a user interface (UI) perspective that it can provide information through natural conversations with users. This study examined the effect of functional and playful values experienced by early users of ChatGPT on reuse intention and verified the structural relationship between technological efficacy, experiential values, and reuse intention. To verify the research model and hypotheses, a survey was conducted on college students who used ChatGPT for the first time. A total of 156 responses were received and 154 responses were used for analysis. As a result, both the functional experiential value and playful experiential value in the initial use process had significant effects on the intention to use ChatGPT. In addition, it was found that technological efficiency had a significant effect on functional and playful experiential values.

• Journal of Environmental Health Sciences
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• v.26 no.4
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• pp.97-104
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• 2000

The purpose of this is made an examination of phosphorus loading model for eutrophication response in the Yongsan lake. For the model, we measured the total amount of nutrients derived from the Yongsan river watershed, inflow rate to the Yongsan lake, water quality, and water budget from January to December in 1999. The total amount of precipitation in the Yongsan river watershed was 4,951.7$\times$10$^{6}$ ㎥/y and inflow amount was 2,569.7$\times$10$^{6}$ ㎥/y, therefore the outflow rate of the Yongsan river watershed was 51.9%. The develop loading of total nitrogen was 86,928.1kg/d and that of total phosphorus was 22,007.6kg/d at the Yongsan river watershed, But, as the inflow loading of total nitrogen was 33,962kg/d and the inflow loading of total phosphorus was 2,218kg/d to the Yongsan lake. so each infolw rate was 39.0% and 10.1%. The hydraulic residence time was 34days, total phosphorus loading [L(P)] on the surface area was 23.398g/㎥/y, the hydraulic load( $Q_{s}$) of inflow water was 74.269m/y, the reserve rate of phosphorus in the lake was 0.359, and the settinh velocity of phosphorus was 0.114m/d at the Yongsan lake. Mathematical model of phosphorus loading to estimate the responses of eutrophication at the Yongsan lake is [ $P_{j}$] = 0.838 [L(P)/Q.(1+√ $T_{w}$)$^{-1}$ ] . ] . .

• Journal of the military operations research society of Korea
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• v.29 no.2
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• pp.26-44
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• 2003

This study Is to forecast the damage of smallpox as a biological weapon and to measure the effect of potential responses (quarantine, vaccination and cure) to the spread of smallpox infection when a smallpox bioterrorism attack occurs. We designed the smallpox spreading simulation model through the literature study on a basis of some existing infectious disease models such as SIR, SEIR model by using Vensim program. In order to evaluate the performance of responses to smallpox, we measure the total infection population, infection sustaining duration, average infection rate and the infection spreading behavior of the smallpox. This study can help those who are related to the bioterrorism forecast the present and possible demage, and take more effective actions for minimizing the damage by smallpox bioterrorism.