• Title/Summary/Keyword: Watch

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S/W Watch-Dog method between dual CPU using different OS (이종 OS로 구동되는 Dual CPU 기반에서의 S/W Watch-Dog 기법)

  • You, Young-Eel;Chon, Byoung-Sil
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.47 no.2
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    • pp.34-39
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    • 2010
  • This paper proposes S/W Watch-Dog method between Dual CPU using the different OS. The proposed watch-dog method performs that it distinguishes the status of channel between dual CPU and status of processor itself. We find out the ideal value of threshold and priority for load test task. and we evaluate the accuracy of the proposed S/W Watch-Dog Method at the result of evaluation. We figure out that the accuracy of proposed method is higher than the accuracy of general S/W Watch-Dog Method in case of variable data rate. Therefore we confirm that the proposed Method has high accuracy of watch-dog function with the ideal value of threshold and priority for load test task through the performance evaluation.

An Watch Duty Scheduling by using Heuristic focused on Korea Navy Ship (휴리스틱을 이용한 초계함급 함정의 정박당직근무 일정계획)

  • Jang, Yeong-Cheon;Jun, Geon-Uk
    • Journal of the military operations research society of Korea
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    • v.31 no.2
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    • pp.60-74
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    • 2005
  • The main purpose of this study is to develop an watch duty scheduling focused on Korea Navy Ship, PCC class, in port. The watch duty scheduling is a type of a scheduling problem which both considers the readiness of the ship and fair duty for each person. In this study, we analyzed the personal ability and military occupational speciality and developed a manpower scheduling by using heuristic. We find an efficient and effective watch duty schedule which improved results.

Effect of 2Dimesion and 3Dimension Images on Human Factors

  • Kim, Jung-Ho;Kwon, Soon Chul;Son, Kwang Chul;Sohn, Chae Bong;Lee, Seung Hyun
    • International Journal of Internet, Broadcasting and Communication
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    • v.6 no.2
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    • pp.13-16
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    • 2014
  • This study aims to examine the effects of watching 2D and 3D images on the blink rate. Regarding the image watch, their blink rate for 2D and 3D images was separately checked for 1 minute in the 1m distance, before the watch, after 15 minutes of watch, and after 30 minutes of watch. About the change of their blink rate in the 2D image watch, it tended to become higher than that before watching the image; however, there was no statistical significance (paired t-test, p=0.106, p=0.062). And in the 2D image watch, it tended to increase in comparison between after 15 minutes and after 30 minutes, but there was no statistical significance (paired t-test, p=0.623). Meanwhile, about the change of their blink rate in the 3D image watch, it tended to decrease statistically significantly both after 15 minutes and after 30 minutes when compared with that before watching the image (paired t-test, p=0.000, p=0.000). In the 3D image watch, it tended to increase in comparison between after 15 minutes and after 30 minutes; however, there was no statistical significance (paired t-test, p=0.867).

Features on the Vertical Size Distribution of Aerosols using Ballon-borne Optical Particle Counter at Anmyeon (광학입자계수기를 이용한 안면도 연직 에어러솔 수농도 크기 분포 특성)

  • Choi, B.C.;Iwasaka, Y.;Lim, J.C.;Jeong, S.B.;Kim, Y.S.;Dmitri, T.;Nagatani, T.;Yamada, M.;Kim, S.B.;Hong, G.M.;Lee, Y.G.;Yoo, H.J.
    • Atmosphere
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    • v.15 no.3
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    • pp.149-153
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    • 2005
  • A balloon-borne Optical Particle Counter (hereafter "OPC Sonde"), which was developed by the atmospheric research group of Nagoya University, is used for getting the information of vertical profile of particle size and concentration in Anmyeon ($36^{\circ}32^{\prime}N$ $126^{\circ}19^{\prime}E$) on 18 March 2005. A range of five different particle sizes is shown in the vertical profile of aerosol number density estimated from the OPC Sonde. It was found that small size particles have vertically larger aerosol number density than relatively big ones. For all size ranges the vertical aerosol number density shows a decreased pattern as the altitude becomes higher. The aerosol number density of $0.3{\sim}0.5{\mu}m$, $0.5{\sim}0.8{\mu}m$, $0.8{\sim}1.2{\mu}m$ size ranges at the 10km height, which is the tropopause approximately, are $1,000,000ea/m^3$, $100,000ea/m^3$, $10,000ea/m^3$ respectively. The data of OPC Sonde are also compared with the data of PM10 $\beta$-ray) and Micro Pulse Lidar which are operating at Korea Global Atmosphere Watch Observatory in Anmyeon.

Study on the Establishment of Threshold Criteria for Heat Health Watch Warning System in Korea; Part I : Establishment of Criteria and Verification (고온건강경보시스템 기준 설정에 관한 연구( I ) - 기준 설정 및 검증 -)

  • Park, Jong-Kil;Jung, Woo-Sik;Kim, Eun-Byul
    • Journal of Environmental Science International
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    • v.18 no.7
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    • pp.767-780
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    • 2009
  • This study investigates the standard, duration period and excess mortality of extreme heat using the standardized daily mortality data from 1991 to 2004, establishing a standard threshold Criteria for Heat Health Watch Warning System in Korea. It ultimately aims to provide the guidance in building up Heat Health Watch Warning System for Korea by suggesting the standard to quantify thermal stress from heat. The standard threshold Criteria for Heat Health Watch Warning System for Seoul metropolitan city takes into account both daily maximum temperature and daily maximum heat index(HI) and consists of four phases; caution, extreme caution, danger, and extreme danger. Extreme caution phase and danger phase are used as the advisory and warning of extreme heat, respectively. Since the nationwide distribution of the frequency of extreme heat day and the excess mortality rate shows little difference across regions, the standard threshold Criteria for Heat Health Watch Warning System for Seoul metropolitan city can be used for other regions.

How Individual Consumer's Characteristics Affects Intention to use Smart Watch

  • Kwon, Soon-hong;Lim, Yang-whan
    • Journal of the Korea Society of Computer and Information
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    • v.21 no.10
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    • pp.143-148
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    • 2016
  • Although various wearable devices applying information technologies are launched, only some of them are forming their own markets, and product which general consumers started to use in their daily life is believed to be smart watch. This study is intended to find factors why such smart watches are selected in terms of individual consumer's characteristics in smart watches whose market is under its early stage. Smart watches are not forming their markets yet and this product is rather closer to a device attached to smart phone. But they would form markets only if their value is approved by themselves. This study looked into a structure under which smart watch forms its preference in terms of individual consumer and consumers are willing to use it. This study has its meaning by looking into factors why smart watch is spreading in market in terms of individual consumer's characteristics. Results from this study are believed to provide fruitful implication to establish market strategy for wearable devices including smart watch that is not much used yet by consumers.

Time Lost forever: Relational bonds of watch manufacturers with retailers in India

  • AMAWATE, Vibhas
    • Journal of Distribution Science
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    • v.19 no.5
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    • pp.23-34
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    • 2021
  • Purpose: This study identifies the critical elements of relationship management required to be studied in distribution sciences to create a relational bond of watch manufacturers with their retailers in India. The offline watch retail market is undergoing a rapid transformation due to technology intervention in the product portfolio and the advent of online retailing. The study identifies the interrelationships amongst the constructs of interdependence, trust, affective commitment, and information exchange to form long-lasting relational bonds in the watch industry. Research design, data and methodology: We used a path analysis to investigate the relationship between interdependence, trust, affective commitment, and information exchange. Data has been collected from 143 watch retailers using judgmental sampling method. Results: The data analysis suggested the establishment of measurement and structural model. The absolute and relative goodness of fit models in the causal analysis are 0.628 and 0.959 suggesting a sufficient fit index. Based on the analysis of direct and indirect effects, the results indicate that trust fully mediates the effect of interdependence and information exchange of retailers with the manufacturer. Conclusions: Trust plays an important role in driving commitment and information exchange between watch manufacturers and retailers. Interdependence in the manufacturer-channel relationships would lead to affective commitment only when trust exists in the relationship. [AMAWATE, Vibhas.] in Web of Science and Scopus).

The Impact of Reviewer Professionalism and Expectation on the Intention to Watch: A Comparison between Commercial and Art Films (비평의 전문성과 사전 기대가 관람 의도에 미치는 영향: 예술영화와 상업영화 비교를 중심으로)

  • Hwang, Sanyoung;Shin, Hyung-Deok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.11
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    • pp.4975-4983
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    • 2012
  • Commercial and Art movies have different characteristics even when they belong to the same 'movie' category. This study investigated the differential effects of reviewer professionalism and expectation about a movie on the intention to watch the movie. Based on the survey on young potential movie goers, we found that movie types indeed have significant effects. Specifically, in the case of art movie, people had high level of intention to watch when they were exposed to professional reviews. We found that utilitarian expectation mediates between reviewer professionalism and intention to watch for art movie. On the other hand, in the case of commercial movie, people had high level of intention to watch when they were exposed to amateur reviewers. We found that hedonic expectation mediates between reviewer professionalism and intention to watch for art movie. In result, this study contributes to our knowledge to movie industry through showing that reviewer professionalism have different impacts on commercial and art movies.

A Basic Study on Implementing Optimal Function of Motion Sensor for Bridge Navigational Watch Alarm System

  • Jeong, Tae-Gweon;Bae, Dong-Hyuk
    • Journal of Navigation and Port Research
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    • v.38 no.6
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    • pp.645-653
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    • 2014
  • A Bridge Navigational Watch Alarm System (hereafter 'BNWAS') is to monitor and detect if an officer of watch(hereafter 'OOW') keeps a sharp lookout on the bridge. The careless lookout of an OOW could lead to marine accidents. For this reason on June 5th, 2009, IMO decided that a ship is equipped with a BNWAS. However, an existing BNWAS gives the OOW a lot of inconvenience and stress in its operation. It requires that the OOW should press reset buttons to confirm their alert watch on the bridge at every three to twelve minute. Many OOWs have complained that at some circumstances they cannot focus on their bridge activities including watch-keeping due to a lots of resetting inputs of BNWAS. Accordingly, IMO has allowed the use of a motion sensor as a resetting device. The motion sensor detects the movements of human body on the bridge and subsequently sends reset signals directly to BNWAS automatically. As a result, OOWs can work uninterrupted. However, some of classification societies and flag authorities have a slightly different stance on the use of motion sensor as a resetting method for BNWAS. The reason is that the motion sensor may trigger false reset signals caused by the motion of objects on the bridge, especially a slight movement such as toss and turn of human body which can extend the period of careless watch. As a basic study to minimize the false reset signals, this paper proposes a simple configuration of BNWAS, which consists of only three motion sensors associated with 'AND' and 'OR' logic gates. Additionally, several considerations are also proposed for the implementation of motion sensors. This study found that the proposed configuration which consists of three motion sensors is better than an existing one by reducing false reset signals caused by a slight movement of human body in one's sleep. The proposed configuration in this paper filters false reset signals and is simple to be implemented on existing vessels. In addition, it can be easily installed just by a basic electrical knowledge.