• Proceedings of the Korean Society of Computer Information Conference
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• 2023.01a
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• pp.373-375
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• 2023

본 논문에서는 멀티 레이블을 이용한 CNN 구조 활용과 NLP 학습을 이용하여 한국 영화의 장르를 예측하는 방법을 제안한다. 포스터는 영화의 전반적인 내용을 한눈에 알아볼 수 있게 하는 매체이기 때문에 다양한 요소들로 구성되어 있다. 합성곱 신경망(Convolutional neural network)을 활용해, 한국 영화 포스터가 가지는 특징들을 추출하여 영화 장르 분류를 진행하였다. 하지만, 영화의 경우 감독이 생각하는 장르와 관객이 영화를 봤을 때, 느끼는 장르가 다를 수 있다. 그렇기 때문에 장르 예측에 있어서 문제가 발생할 수 있다. 이러한 문제를 완화하기 위해 본 논문에서는 합성곱 신경망 활용뿐만 아니라, 자연어 처리(Natural Language Processing)를 같이 활용한 방법을 제안한다.

• The Bulletin of The Korean Astronomical Society
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• v.46 no.1
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• pp.58.1-58.1
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• 2021

At the University of Seoul, we are investigating the following topics in cosmology: comparing traditional clustering algorithms to our new Mulguishin algorithms, analysis of 2-body Fuzzy Dark Matter 2-body collision, 2- and 3-point clustering statistics and its dependency on the cosmological model, and dynamics of dark-matter halos around the large-scale filamentary structures. In the following sections we present a brief introduction to our studies.

• International Journal of Internet, Broadcasting and Communication
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• v.15 no.4
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• pp.21-30
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• 2023

The aim of this study is to investigate how travelers' destination visit intentions are influenced by avatar self-congruence in the metaverse platform. We extended the impression management theory by considering both perceived enjoyment and social engagement, and illustrated the interaction effect based on users' digital age. To achieve this, we conducted an online survey with 302 users. The survey results revealed that avatar self-congruence significantly influenced users in terms of perceived enjoyment and social engagement, thereby affecting their destination visit intentions. This study also revealed a significant interaction effect between digital age type and avatar self-congruence on users' perceived enjoyment. The results of this study are expected to provide not only a theoretical reference for metaverse research and travel research but also managerial implications for destination management and metaverse applications.

• Asia-Pacific Journal of Business
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• v.14 no.3
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• pp.17-24
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• 2023

Purpose - The objective of this research is to investigate how lowering labor market frictions for female workers affects corporate social responsibility (CSR). Design/methodology/approach - We utilize the staggered adoption of state-level Paid Family Leave (PFL) acts in the U.S. These acts provide significant flexibility for female employees by mandating paid leave for a family or medical events. Our study is based on a sample of 30,027 publicly traded firms in the U.S. from 1991 to 2012. We employ a difference-in-differences research design, considering treated firms as those headquartered in states that enacted PFL laws. Findings - We find that there is a significant increase in the firms' CSR performance following the adoption of the PFL, suggesting that lowering the labor market frictions for female workers encourages firms to invest in CSR initiatives. Research implications or Originality - This study informs policy makers that PFL enables firms to reduce costly employee turnover and results in an increase in CSR performance.

• Journal of Agricultural Extension & Community Development
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• v.31 no.2
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• pp.67-83
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• 2024

This study aims to explore a biological interpretation of farming practices mentioned in 'Sallimgyeongje(山林經濟)', an agricultural literature published in late 18C, in order to substantiate its scientific practicality and suggest the sustainable direction of modern agriculture. First, the research revealed that weeds and pests were effectively controlled by interspecies interactions such as allelopathy, mutualism, and interplanting. Second, qualified seeds were selected without dependence on chemical treatments by using specific gravity and cold water immersion. Third, the literature proposed plowing methods based on the properties of the soil, which implicated an establishment of healthy landscape mosaic by imitating the succession and introducing the moderate disturbance. Fourth, the genotypes of 37 native rice varieties were speculated based on six phenotype standards, and some of them are expected to have high nutritional value and abiotic stress resistance.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.58 no.2
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• pp.85-90
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• 2013

This study was conducted to examine the basis for the information to select the suitable potato varieties grown in new reclaimed land. The potatoes of five varieties were planted in the port with 4 different electrical conductivities of saturated extracts of soil taken the Saemangeum reclamation area, which was made of non-treatment salt and three concentrations of salt treatment, 1.6 dS $m^{-1}$, 3.2 dS $m^{-1}$, 4.8 dS $m^{-1}$, respectively. All of the potato varieties were uniformly emerged without missing plant in all treatment groups, even 4.8 dS $m^{-1}$ treatment group. According to the salt concentration of soil, required date to the emergence of the potato comparing to non-treatment salt was delayed 3-4 days in 1.6 dS $m^{-1}$, 6-10 days in 3.2 dS $m^{-1}$, 7-13 days in 4.8 dS $m^{-1}$, respectively, and the number of its branch decreased by 14-58% comparing to non-treatment salt depending on varieties. Since the increase of the salt concentration of the soil was more serious the decrease of the number of its branch, but plant height tended to increase when branch number per plant was small, which was depending on more number of its branch than salt concentration. Fresh tuber yield of potato comparing to non-treatment salt were decrease 33.7% in 1.6 dS $m^{-1}$, 59.5% in 3.2 dS $m^{-1}$, 79.3% 7-13 days in 4.8 dS $m^{-1}$, respectively. The threshold EC starting the growth inhibition of fresh weight decreased was 1.2 dS $m^{-1}$ for Chudong, 1.8 $m^{-1}$ for Chubeak, 1.9 $m^{-1}$ for Chugang and Chuyeong, and 2.0 $m^{-1}$ for Sumi, and EC which decreased 50% of dry weight index was 2.4 dS $m^{-1}$ for Chubaek, 2.45 dS $m^{-1}$ for Chudong, 2.81 dS $m^{-1}$ for Chugang, 3.03 dS $m^{-1}$ for Chuyeong, and 3.29 dS $m^{-1}$ for Sumi. The present results suggest that Sumi is considered to the suitable potato variety grown on saline soils.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.65 no.4
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• pp.468-476
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• 2020

This study was performed to establish light intensity conditions for producing stem cuttings for aeroponic systems suitable for seed potato production using a closed-type plant production system. Shoot tip cultured plantlets of 'Sumi' and 'Chubaek' potato (Solanum tuberosum L.) were acclimatized, cuttings were collected, and stem cuttings were planted. The seedlings were raised for 40 days at different LED light intensities (60, 120, 180, and 240 μmol·m^-2·s^-1), and were cultivated in an aeroponic system for 80 days. When stem cuttings were raised at 60 μmol·m^-2·s^-1 LED light intensity, the plant height was the longest, at 17.3 cm for 'Sumi' and 16.1 cm for 'Chubaek', and the number of nodes was the highest in both cultivars. The higher light intensities, produced smaller plants with fewer nodes. The leaf areas, SPAD values, and Fv/Fm values differed slightly between cultivars. The fresh weight of stem cuttings, and the production rate of healthy stem cuttings were the highest at 60 μmol·m^-2·s^-1. In the aeroponic system, seedlings raised at 60 μmol·m^-2·s^-1 with LED light intensity showed a difference between the cultivars, but the fresh weight of stems and leaves above the planting plate was the heaviest. In addition, below the planting plate the stem cuttings were longest and the root weight was heaviest at 60 μmol·m^-2·s^-1 LED light intensity. The number of stolons also differed between cultivars, but was greatest for seedlings raised at 60 μmol·m^-2·s^-1 LED light intensity, at 4.2/plant for 'Sumi' and 7.7/plant for 'Chubaek'. At 60 μmol·m^-2·s^-1 LED light intensity, the tuber number and total tuber weight were the best, but the higher the light intensity, the smaller the total tuber number and total tuber weight for both cultivars. In conclusion, when producing potato stem cuttings for aeroponic systems using a closed-type plant production system, the most suitable LED light intensity for raising seedlings was found to be 60 μmol·m^-2·s^-1.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.59 no.1
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• pp.89-96
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• 2014

We aimed to evaluate the effects of climatic elements on potato yield and create a model with climatic elements for estimating the potato yield, using the results of the regional adjustment tests of potato. We used 86 data of the yield data of a potato variety, Sumi, from 17 regions over 11 years. According to the results, the climatic elements showed significant level of correlation coefficient with marketable yield appeared to be almost every climatic elements except wind velocity, which was daily average air temperature (Tave), daily minimum air temperature (Tmin), daily maximum air temperature(Tmax), daily range of air temperature (Tm-m), precipitation (Prec.), relative humidity (R.H.), sunshine hours (S.H.) and days of rain over 0.1 mm (D.R.) depending on the periods of days after planting or before harvest. The correlations between these climatic elements and marketable yield of potato were stepwised using SAS, statistical program, and we selected a model to predict the yield of marketable potato, which was $y=7.820{\times}Tmax_-1-6.315{\times}Prec_-4+128.214{\times}DR_-8+91.762{\times}DR_-3+643.965$. The correlation coefficient between the yield derived from the model and the real yield of marketable yield was 0.588 (DF 85).

• The Journal of the Korea Contents Association
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• v.14 no.4
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• pp.47-57
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• 2014

The horro movie which was released in 2003, was a box office hit drawing audiences totaling 3,140,000 people. Then, there were partial opinions that it was difficult to understand the content of the movie. However, it was most favorably received in the horror movies which were released before and after 2003. The 4 main characters in the movie are a family. The family conflicts begin as the dad has an affair. Muhyeon(the dad)'s infidelity leads his wife to kill herself. The suicide of the wife and mom again leads Suyeon(the younger sister) to be dead. At this moment, Suyeon's death is related to Eunju(the step mom). Sumi(the older sister) is deeply hurt by the fact that Eunju left her younger sister's death after she was dead. But at the same time, she realizes that she is also related to Eunju's act. And she felt guilty about her younger sister's death. Eunju was also hurt by Sumi's biting remarks. However, she feels guilty about the fact that she made Suyeon be dead. Director Jiun Kim said in the interview when it was released, "this movie is about hurts and guilt among families." These hurts and guilt are expressed by horror images that imagination and reality are mixed. Hurts are expressed by virtual images and guilt is done by real images. This paper presented still pictures which explain the virtual and real images and examined what hurts and guilt mean. And it described the symbolic meanings of three media which cause conflicts among main characters.

• Mycobiology
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• v.31 no.2
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• pp.113-118
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• 2003

Solanaceous crops grown in greenhouses and fields in Korea were surveyed from 1994 to 2000. Sclerotinia rot most severely occurred up to 60% in potato. Incidence of the disease was as high as 20% at its maximum in tomato and 5% in eggplant, but as low as less than 1% in red pepper. Symptoms of Sclerotinia rot commonly developed on stems of the solanaceous crops but rarely on fruits of eggplant and tomato. A total of 169 isolates of Sclerotinia species was obtained from the diseased solanaceous crops. Out of the isolates, 165 isolates were identified as S. sclerotiorum, and the others as S. minor based on their morphological and cultural characteristics. S. sclerotiorum was isolated from all the solanaceous crops, while S. minor was only isolated from tomato. Eight isolates of S. sclerotiorum and two isolates of S. minor were tested for their pathogenicity to the solanaceous crops by artificial inoculation. All the isolates of the two Sclerotinia spp. induced rot symptoms on stems of the solanaceous crops tested, which were similar to those observed in the fields. The pathogenicity tests revealed that there was no significant difference in the susceptibility of the solanaceous crops to the isolates of S. sclerotiorum. However, in case of S. minor, the potato cultivar Sumi was relatively less susceptible to the pathogen.