• Journal of the Korean Society of Food Culture
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• v.31 no.6
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• pp.587-596
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• 2016

The purpose of this study was to determine health consciousness and eating habits of workers at Deluxe hotels in Seoul and Gyonggi-do. To determine health levels, this study focused on quality of sleep, current state of health, smoking, drinking, regular exercise, dietary behavior patterns, dietary habits, and food intake patterns. Out of 228 subjects, 145 (63.6%) were males and 83 (36.4%) were females. Majority of workers (86.9%) graduated from university. A majority (57.0%) worked more than 10 years. Average health condition was 'little tired', whereas 18.4% of subjects were 'always tired'. Male percentages for smoking and drinking were higher than those for females. A total of 44.3% of workers ate twice a day. Regular physical activity was high, but regular exercise rate was slightly low. Male average eating speed was faster than that of females and had lower scores for desirable eating habits. Shift workers ate night meals more than non- shift workers. This study shows that workers at Deluxe hotels need to take better care of their health.

• The Journal of Korean Medical History
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• v.33 no.1
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• pp.21-30
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• 2020

'Medical officials of State Council' (議政府藥房) (MOSC) were bureaucrats who was part of a State Council and provided regular medical care to the State Council's bureaucracy. The Manual for Medical Officials of State Council (議政府藥房式例) (MMOSC) is a rare resource that records the actual work of the MOSC in the 19th century. This paper examines the changing history of the title of 'medical official' (藥房, yakbang) in the Joseon Dynasty and analyzes the role of MOSC by examining the contents of MMOSC. It argues: 1) The MOSC system was established before other similar medical office systems. Subsequently, the Medical Office of Ritual Minister (禮曹藥房) and Medical Office of Patriots and Veterans Minister (忠勳府藥房) were established, followed by Medical Office of General Office (都總府藥房) and Medical Office of Managing Royal Family (宗親府藥房). 2) The MMOSC was first written in 1812 and was augmented in 1832 and 1840. This timeline can be verified through written seal at the end of the literature. 3) In addition to the medicine-related work, the medical office also did the administrative work of the government office.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.85-94
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• 2017

This study examined the factors influencing the health status according to class and socioeconomic class recognition by the employment type. To take advantage of the 18 original sources of the Korea Labor panel materials carried out in the South Korea Labor Institute, 5,158 adults over 20 years old were included in the final analysis. The research results revealed that the incomes of regular workers and non-regular workers between the hierarchy and socioeconomic hierarchy recognition showed a statistically significant difference between the cage; it was consistent between the hierarchy in only the "heavy" category. Regular workers of society, and regardless of non-regular workers, were analyzed to be relatively low compared to the actual income. Regression analysis showed that regular jobs had higher socioeconomic hierarchy recognition. Non-regular workers had a lower income bracket and lower socioeconomic hierarchy recognition. In particular, in the case of non-regular workers, the pension was not subscribed and they had a poorer state of health. Therefore, the pension insurance payment for non-regular workers needs to compensate for the lost income during non-employment periods. In addition, the government should improve public relations through education, management fields, and cooperation with labor.

• Journal of Institute of Control, Robotics and Systems
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• v.15 no.2
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• pp.121-127
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• 2009

This paper deals with the design problem of robust stabilization and non-fragile controller for discrete-time singular systems with parameter uncertainties and time-varying delays in state and input by delay-dependent Linear Matrix Inequality (LMI) approach. A new delay-dependent bounded real lemma for singular systems with time-varying delays is derived. Robust stabilization and robust non-fragile state feedback control laws are proposed, which guarantees that the resultant closed-loop system is regular, causal and stable in spite of time-varying delays, parameter uncertainties, and controller gain variations. A numerical example is given to show the validity of the design method.

• Journal of information and communication convergence engineering
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• v.21 no.1
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• pp.24-31
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• 2023

The solid-state drive (SSD) possesses higher input and output speeds, more resistance to physical shock, and lower latency compared with regular hard disks; hence, it is an increasingly popular storage device. However, tiny components on an internal printed circuit board (PCB) hinder the manual detection of malfunctioning components. With the rapid development of artificial intelligence technologies, automatic detection of components through convolutional neural networks (CNN) can provide a sound solution for this area. This study proposes applying the YOLOv5 model to SSD PCB component detection, which is the first step in detecting defective components. It achieves pioneering state-of-the-art results on the SSD PCB dataset. Contrast experiments are conducted with YOLOX, a neck-and-neck model with YOLOv5; evidently, YOLOv5 obtains an mAP@0.5 of 99.0%, essentially outperforming YOLOX. These experiments prove that the YOLOv5 model is effective for tiny object detection and can be used to study the second step of detecting defective components in the future.

• Bulletin of the Korean Mathematical Society
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• v.29 no.1
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• pp.137-143
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• 1992

The purpose of this paper is to provide the affirmative solution of the following conjecture due to Davis and Geramita. Conjecture; Let A=R[T] be a polynomial ring in one variable, where R is a regular local ring of dimension d. Then maximal ideals in A are complete intersection. Geramita has proved that the conjecture is true when R is a regular local ring of dimension 2. Whatwadekar has rpoved that conjecture is true when R is a formal power series ring over a field and also when R is a localization of an affine algebra over an infinite perfect field. Nashier also proved that conjecture is true when R is a local ring of D[ $X_{1}$,.., $X_{d-1}$] at the maximal ideal (.pi., $X_{1}$,.., $X_{d-1}$) where (D,(.pi.)) is a discrete valuation ring with infinite residue field. The methods to establish our results are following from Nashier's method. We divide this paper into three sections. In section 1 we state Theorems without proofs which are used in section 2 and 3. In section 2 we prove some lemmas and propositions which are used in proving our results. In section 3 we prove our main theorem.eorem.rem.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11a
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• pp.487-490
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• 2003

기계번역 시스템에서 복합단위 처리는 원문의 분석 부담을 줄이고 조합적으로 대역문의 의미를 생성하지 못하는 원문의 처리를 위해 필수적이다. 본 논문에서는 정규표현(Regular Expression)을 이용하여 영어의 연속(Non-Interrupted) 및 불연속(Interrupted) 복합 단위를 인식하는 복합단위 인식기를 제안한다. 제안된 방법은, 기존에 trie 와 같은 index 의 갱신 과정이 불필요하므로, 다수의 작업자에 의해 복합단위 사전을 동시에 구축하는 경우에, 한 작업자의 결과가 실시간으로 다른 작업자의 작업에 반영되는 장점이 있으며, 복합단위 인식에 있어 정규 표현을 이용함으로써 복합단위 인식기의 성능을 선언적으로 향상시킬 수 있다. 번역 실행시의 고속 탐색을 위해서는 전체 복합단위로부터 FSA(finite State Automata) 를 자동으로 구축하여 빠른 속도로 인식 가능하도록 하였다.

• Journal of the Korean Home Economics Association
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• v.27 no.2
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• pp.65-74
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• 1989

The purpose of this study was to investigate the state of eating out and the food preference of college students in Seoul. This survey was carried out through questionaires, and the subjects were 158 male and 159 female students. The result obtained were summarized as follows; 1) Female students had more regular breakfast than male students, and male students had more regular dinner than female students. 2) Male and higher grade students brought home-made lunches more frequently than female students, and others ate out in campus dinning room and off campus dinning room. 3) Most of subjects (77.3%) ate out more than once a day, they ate out in lunch time more frequently than other times. 4) Male and female students used different type of restaurant. 5) The most favorite food of male students in eating out was a Dongas, and that of female students was Nangmyun.

• Smart Structures and Systems
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• v.19 no.4
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• pp.383-391
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• 2017

In this paper, we investigate the impacts of network topology on the performance of a distributed estimation algorithm, namely combine-then-adaptive (CTA) diffusion LMS, based on the data with or without the assumptions of temporal and spatial independence with noisy links. The study covers different network models, including the regular, small-world, random and scale-free whose the performance is analyzed according to the mean stability, mean-square errors, communication cost (link density) and robustness. Simulation results show that the noisy links do not cause divergence in the networks. Also, among the networks, the scale free network (heterogeneous) has the best performance in the steady state of the mean square deviation (MSD) while the regular is the worst case. The robustness of the networks against the issues like node failure and noisier node conditions is discussed as well as providing some guidelines on the design of a network in real condition such that the qualities of estimations are optimized.

• Communications for Statistical Applications and Methods
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• v.4 no.3
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• pp.663-676
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• 1997

We obtain the simultaneous unit roots test statistics for both regular and seasonal unit roots in a time series with possible seasonal deterministic trends. The limiting distributions of the proposed test statistics are derived and empirical percentiles of the test statistics are tabulated for some seasonal periods. The power and size of the test statistics are examined for finite samples through a Monte Carlo simulation and Compared with those of the Lagrange multiplier test.