• 대한영양사협회학술지
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• 제10권3호
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• pp.261-271
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• 2004

The purpose of this study was to provide basic data for practical HACCP training. A survey was conducted and analysed on 46 contract foodservices: 13 "Appointed" foodservices (appointed by Korean Food & Drug Administration), 17 "Voluntary Applying" foodservices (voluntarily applied HACCP, but not appointed), 16 "Non-applying" foodservices (not applied HACCP). Hygiene knowledge and recognition on job performance levels for HACCP application for 46 dieticians and 361 employees were surveyed. According to the survey, 61.5% of the "Appointed" dieticians took HACCP training from outside the company, 58.8% of "Voluntary Applying" dieticians took in-house HACCP training, and 62.4% of "Non-applying" dieticians have not taken any HACCP training. As for the comparison of hygiene knowledge, total mean of employees (6.38) showed significantly lower average than that of the dieticians (7.82) (p<0.001). From the result for recognition on job performance levels, total mean of dieticians (3.91) indicated generally good performance while employees (3.41) (p<0.001) showed considerably lower recognition. Hygiene knowledge and recognition on job performance levels of both dieticians and employees showed considerably close correlation (p<0.01 or p<0.05).

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.48-54
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• 2020

Researchers recognized air pollution changes causing diseases and difficulties in living due to environmental pollution following various human activities, and have studied how to avoid fine dust harmful to the human respiratory system to be healthy. To this end, Arduino is used to equip fine dust level sensors in drones to measure the fine dust levels, visualize the measurements with LED indicator colors depending on the measurements to inform users of the danger of fine dust, and use the benefits of drones to specify dangerous fine dust zones and measure the fine dust levels. Users can see the changes depending on the fine dust levels in real time with the LED indicators. This will contributes to measuring fine dust levels easily in dangerous areas. Mission Planner (ArduPilot) is used to set up the GPS of drone, and store the data from the dust sensor as contents. This study aims to establish a method for improving the environment to measure fine dust levels with drones with LED indicators for fine dust, and reduce fine dust.

• 임상간호연구
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• 제23권2호
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• pp.179-188
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• 2017

Purpose: This study examined post-traumatic stress (PTS) and the factors affecting it among general hospital nurses after the MERS(Middle East Respiratory Syndrome) epidemic. Methods: Data were collected from 170 nurses who worked at general hospitals since the first reported MERS outbreak. The IES-R-K assessed PTS. Data were analyzed using SPSS. Results: The mean PTS level was 7.80 points (range: 0~88); 7.1% of the participants were at a high risk. Nurses who had been in contact with patients suspected or diagnosed with MERS had high post-traumatic levels; those who had been quarantined during the MERS outbreak had relatively higher PTS levels. Shift-work nurses had higher PTS levels than those with fixed working hours. Above charge' nurses stress levels were higher than staff nurses' stress levels. The results showed that factors including contact with an MERS-suspected or diagnosed patient, position at work, and working status of MERS-affected nurses explained 16% of the PTS. Among the main variables, nurses' above charge position was the greatest factor affecting PTS. Discussion: It is necessary to develop intervention studies and programs considering these variables. Furthermore, development and implementation of differentiated programs should be done considering the position of above charge nurses.

• 한국학교보건학회지
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• 제26권3호
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• pp.158-168
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• 2013

Purpose: Elementary schools are regarded as the best community setting for implementing obesity prevention programs and health teachers (HTs) are the main health professionals who can provide obesity prevention services. However, there is insufficient information on the actual conditions of school-based obesity prevention/ management programs in Korean elementary schools. The purpose of the study was to investigate the actual conditions of school-based obesity prevention/management programs, perceived and experienced by elementary school HTs, which may provide basic data for developing effective and sustainable programs for early childhood. We investigated (1) HTs' ratings on the program's importance, the confidence in the program's implementation, and the factors associated with the program's success (2), the correlates of the importance and confidence levels (3), the program's effectiveness and the factors associated with its sustainability, which were evaluated by HTs, and (4) the correlates of the effectiveness levels. Methods: The participants, 147 HTs working for elementary schools in Seoul were asked to fill out self-administrated questionnaires through mail. Results: The participants' rate on the program's importance was 7.1 on average (0~10 scale) and that on the confidence in the program's implementation was 6.2 (0~10 scale). Moreover, > 25% of the participants reported student and parent participation as a factor associated with the program's success. Of the total participants, 45.6% reported they had actually experienced the program, giving 4.8 points (0~10 scale), on average, in the evaluation of the program's effectiveness and > 22.0% of the participants regarded student and parent participation as a factor associated with the program's sustainability. The HTs' confidence in the program's implementation was a strong correlate of the effectiveness evaluated by HTs. Conclusion: School-based obesity prevention/management programs tend to be highly prioritized by HTs in elementary schools. To implement an effective obesity program in elementary schools, educational support for HTs is needed in order to enhance their confidence levels on the program's implementation.

• ETRI Journal
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• 제38권6호
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• pp.1104-1113
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• 2016

Non-linear document navigation refers to the process of repeatedly reading a document at different levels to provide an overview, including selective reading to search for useful information within a document under time constraints. Currently, this function is not supported well by small-screen tablets. In this study, we propose the concept of structure-aware touch-based scrolling (SATS), which allows structural document navigation using region-dependent touch gestures for non-sequential navigation within tablets or tablet-sized e-book readers. In SATS, the screen is divided into four vertical sections representing the different structural levels of a document, where dragging into the different sections allows navigating from the macro to micro levels. The implementation of a prototype is presented, as well as details of a comparative evaluation using typical non-sequential navigation tasks performed under time constraints. The results showed that SATS obtained better performance, higher user satisfaction, and a lower usability workload compared with a conventional structural overview interface.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2001년도 전력전자학술대회 논문집
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• pp.662-665
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• 2001

As the fuzzy control is applied to servo system the hardware implementation of the fuzzy information systems requires the high speed operations, short real time control and the small size systems. The aims of this study is to develop hardware of the fuzzy information systems to be apply to servo system. In this paper, we propose a calculation method of approximate reasoning for fuzzy control based on $\alpha$-level set decomposition of fuzzy sets by quantize $\alpha$-cuts. This method can be easily implemented with analog hardware. The influence of quantization levels of $\alpha$-cuts on output from fuzzy inference engine is investigated. It is concluded that 4 quantization levels give sufficient result for fuzzy control performance of do servo system. It examined useful with experiment for dc servo system.

• ETRI Journal
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• 제43권4호
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• pp.650-659
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• 2021

Multi-carrier waveforms have several advantages over single-carrier waveforms for radar communication. Employing multi-carrier complementary phase-coded (MCPC) waveforms in radar applications has recently attracted significant attention. MCPC radar signals take advantage of orthogonal frequency division multiplexing properties, and several authors have explored the use of MCPC signals and the difficulties associated with their implementation. The sidelobe level and peak-to-mean-envelope-power ratio (PMEPR) are the key issues that must be addressed to improve the performance of radar signals. We propose a scheme that applies pattern-based scaling and geometric progression methods to enhance sidelobe and PMEPR levels in MCPC radar signals. Numerical results demonstrate the improvement of sidelobe and PMEPR levels in the proposed scheme. Additionally, autocorrelations are obtained and analyzed by applying the proposed scheme in extensive simulation experiments.

• 한국데이타베이스학회:학술대회논문집
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• 한국데이타베이스학회 2010년도 춘계국제학술대회
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• pp.5-12
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• 2010

With a sample of 147 Korean small and medium size companies, this study examined the relationships among degree of information orientation, corporate culture, degree of information management implementation and selected business performances in the process of implementing IMS improvement programs, such as IMS(Information Management System). Information orientation is defined as company-wide understanding and implementation of the underlying philosophy, principles, approached, and tools of information improvement programs. It is assumed that successful implementation of information improvement programs requires a information-oriented mind-set of the employees. The key elements of information orientation include continious improvement structured processes, organixation-wide participation and customer-focused spirit. Culture id defined as the value and beliefs of em organization that shape its behavior. It is also assumed that successful implementation of information improvement programs require strong support from s corporate culture that emphasizes cintinious improvement. Adopting the competing values model of Quinn and McGrath(1985), corporate culture is classified into 'flexible' versus 'controlled culture' and 'outer-directed' versus 'inner-directed culture'. Fitness was defined through the relationship between levels of information oriented and types of corporate culture. The results were as follows. First, it was found that when a company with high information orientation promoted information innovation programs, such as IMS, it reported higher degree of information management implementation and improvement in business performances. Second, the results showed the importance of 'flexible culture' and 'outer-directed culture' in performing information, innovation. Regarding the types of corporate culture, the analysis found that developmental culture, rational culture and group culture were effective. Third, companies with high information oriented and flexible culture or companies with high information orientation and outer-directed culture reported the highest implementation in Information management activities. Fourth, the results showed that the level of information management implementation had a mediating effect on the relationship between information orientation and business performance. It was also found that enhanced non-financial performance led to the improvement of financial performance. This study attempted to exaime the factor that lead information management program to success. In order to reach success, first, it is suggested that companies have positive mind set toward continious information improvement. Secondly, it is recommended that a flexible and outer-directed culture appropriate for continious information improvement is cultivated.

• 유통과학연구
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• 제13권11호
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• pp.123-130
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• 2015

Purpose - Due to highly elevated levels of competition, many companies today have to face the problem of decreasing profits even when their actual sales volume is increasing. This is a common phenomenon that is seen occurring among companies that focus heavily on quantitative growth rather than qualitative growth. These two aspects of growth should be well balanced for a company to create a sustainable business model. For supply chain management (SCM) planners, the optimized, quantified flow of resources used to be of major interest for decades. However, this trend is rapidly changing so that managers can put the appropriate balance between sales volume and sales quality, which can be evaluated from the profit margin. Profit optimization is a methodology for companies to use to achieve solutions focused more on profitability than sales volume. In this study, we attempt to provide executional insight for companies considering implementation of the profit optimization system to enhance their business profitability. Research design, data, and methodology - In this study, we present a comprehensive explanation of the subject of profit optimization, including the fundamental concepts, the most common profit optimization logic algorithm -linear programming -the business functional scope of the profit optimization system, major key success factors for implementing the profit optimization system at a business organization, and weekly level detailed business processes to actively manage effective system performance in achieving the goals of the system. Additionally, for the purpose of providing more realistic and practical information, we carefully investigate a profit optimization system implementation case study project fulfilled for company S. The project duration was about eight months, with four full-time system development consultants deployed for the period. To guarantee the project's success, the organization adopted a proven system implementation methodology, supply chain management (SCM) six-sigma. SCM six-sigma was originally developed by a group of talented consultants within Samsung SDS through focused efforts and investment in synthesizing SCM and six-sigma to improve and innovate their SCM operations across the entire Samsung Organization. Results - Profit optimization can enable a company to create sales and production plans focused on more profitable products and customers, resulting in sustainable growth. In this study, we explain the concept of profit optimization and prerequisites for successful implementation of the system. Furthermore, the efficient way of system security administration, one of the hottest topics today, is also addressed. Conclusion - This case study can benefit numerous companies that are eagerly searching for ways to break-through current profitability levels. We cannot guarantee that the decision to deploy the profit optimization system will bring success, but we can guarantee that with the help of our study, companies trying to implement profit optimization systems can minimize various possible risks across various system implementation phases. The actual system implementation case of the profit optimization project at company S introduced here can provide valuable lessons for both business organizations and research communities.

• International Journal of Reliability and Applications
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• 제1권1호
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• pp.1-14
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• 2000

The global marketplace is highly competitive and organisations, who want to survive long-term, have to continuously improve, change and adapt in response to market demands. These improvements should focus on cost cutting, increasing productivity levels and quality and guaranteeing deliveries in order to satisfy customers. Total Productive Maintenance (TPM) is one method, which can be used to achieve these goals. TPM is a change management approach that involves employees from both production and maintenance departments. The purpose is to eliminate major production losses by introducing a program of continuous and systematic improvements to production equipment. TPM should be developed and expanded to embrace the whole organisation and all employees should be involved in the process as members of improvement teams. This paper gives a short description of the development of TPM and the TPM implementation process. Findings are reported from a case study in which one of the authors had the possibility of following and guiding a company through their TPM implementation. The implementation process takes several years and the research has focused on the initial three years. The study demonstrates that driving forces, obstacles and difficulties often are dependent on the organisation, its managers and the individual employees.