• 산업경영시스템학회지
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• 제40권4호
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• pp.87-95
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• 2017

This study aims to configure what dimensions make up for smart phone after service quality, and how this service quality affects customer satisfaction and customer loyalty. Smart phone market is a market of the device leading the digital convergence as well as positioning itself as one of the national growth driving industry. To survive in this matured market, companies should have to respond actively to radical changes and customers needs in the so-called Smart Revolution environment. Lately, however, the smart phone market is prospected to move from growth phase to mature phase by the scholars. In order to proactively respond to the change in such market condition, companies need to provide absolute advantage in customer loyalty over their competitors by revolutionizing the after-sales service quality. Qualified A/S will lead to service satisfaction and achieve customer loyalty. The empirical analysis results obtained through A/S quality are as follows : First, human quality (attitude, expertise, problem-solvability), environment quality (handling agility, convenience, comfort), service policy quality (quality guarantee, additional service operation) are dimensions that make up for A/S quality. Second, A/S quality dimension showed a significant positive influence on service satisfaction and A/S satisfaction showed a positive influence on customer loyalty as well. Based on this empirical study, we propose some implications for A/S quality improvement. First, human quality dimension has relatively higher influence on A/S satisfaction in case of free A/S, so companies need to solve the product problem completely when consumer's first visit by continual employee education. Second, in case of paid A/S, the service policy quality-especially A/S Warranty period- has higher influence on A/S satisfaction.

• Journal of information and communication convergence engineering
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• 제5권4호
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• pp.339-345
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• 2007

Video transcoding is a technique used to convert a compressed input video stream with an arbitrary format, size, and bitrate into a different attribute video stream different attributes to provide a efficient video streaming service for the customers is dispersed in the heterogeneous networks. Specifically, frames deletion occur in a transcoding scheme that exploits the adjustment of frame rate, and at this time, the loss in temporal relation among frames due to frame deletion is compensated for the prediction of motion estimation by reusing motion vectors in the would-be deleted frames. But the processing time for transcoding don't have an improvement as much as our expectation because transcoding is done only within the transcoder. So in this paper, we propose a new transcoding algorithm based on prediction period to improve transcoding-related processing time. For this, we also modify the existing encoder so as to adjust dynamically frame rate based on the prediction period and deletion period of frames. To check how the proposed algorithm works nicely, we implement a video streaming system with the new transcoder and encoder to which it is applied. The result of the performance test shows that the streaming system with proposed algorithm improve 60% above in processing time and also PSNR have a good performance while the quality of pictures is preserved.

• 한국과학교육학회지
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• 제42권1호
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• pp.127-147
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• 2022

예비 과학교사 교육은 학교 현장에서 이루어지게 될 과학교육의 질을 제고하기 위하여 중요하며, 이에 따라 많은 예비 과학교사 교육연구들이 국내에서 보고되어 왔다. 그러나 그 연구 동향을 중등교사 맥락을 포함하여 포괄적으로 살펴보고 정리하는 작업은 거의 이루어지지 않아 왔다. 이에 본 연구는 지금까지 국내에서 이루어진 예비 과학교사 교육 연구의 동향을 살펴보았다. 분석 대상 문헌은 1995년부터 2021년까지 17개의 KCI 등재지급 학술지에서 출판된 410건이었다. 해당 연구 문헌들의 동향은 시기별 문헌 수, 주제어 빈도, 연구의 질적 속성을 살펴봄으로써 조사하였다. 이 때 연구의 질적 속성은 예비교사의 유형과 전공, 연구맥락 교과, 연구 주제, 접근 방법, 자료 유형, 연구 참여자 수를 질적 코딩함으로써 다각적으로 파악하였다. 연구 결과, 예비 과학교사 교육 연구의 보고는 5년 간격으로 약 40건씩 증가하는 추세를 보였다. 연구가 출판되는 학술지는 '한국과학교육학회지'가 가장 큰 비중을 차지하되 2010년대 후반 이후 다양성이 증가하고 있었다. 주제어 빈도 분석 결과 과학교수효능감이나 과학의 본성, 그리고 여타 교수학습맥락이 강조되고 있었다. 질적 속성 코딩결과 예비교사 유형은 중등교사, 예비교사 전공과 연구맥락 교과는 '일반' 과학교육이 가장 많았다. 연구 주제로서는 '예비교사 대상 교육 프로그램', 그리고 '인식 및 정의적 영역'이 가장 많았다. 접근방법으로서는 특정 주제에 대한 '분석'을 수행한 연구가 가장 많았다. 연구 참여자 수는 11명 이상 30명 미만이 가장 많았다. 다만 이러한 질적 속성의 패턴은 시기별로, 그리고 예비교사 유형별로(유, 초, 중) 사뭇 다르게 나타났다. 연구 결과로부터 보다 행정적인 측면에 집중한 연구, 공통과학 교사에 대한 연구, 교사의 행위주체성에 집중한 연구, SSI 및 STS와 측면에서 생태전환교육을 주도할 환경교육 맥락의 포용 등 추후 예비 과학교사 교육 연구가 나아갈 방향을 탐색하고 제안하였다.

• 한국동물위생학회지
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• 제18권1호
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• pp.57-71
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• 1995

During the period of 2 years from 1993 to 1994, epidemiological investigation were carried out each time the outbreak of rabies suspected cases were informed and all specimens were transported to the Kangwon-do Veterinary Service Lab. At the Lab., autopsy and laboratory examinations were conducted as well. The results obtained as follows 1. The dogs and cattles were confirmed to be infected with rabies virus by routine histopathological findings, indirect flulrescent antibody technique, and mouth inoculation test. 2. The total numbers of rabies occured in dogs and cattles were 9, 5 heads, respectively. The regional distribution of total of 14 heads were 9 heads in Chulwon, 2 heads in Hwachun, 1 head Yangku, 2 heads in Inje and the highest number of outbreaks were orrured in Chulwon. 3. Most of dogs showed furious type and dumb type found in only one dog. 4. Cattles showed the symtoms of uneasiness feeling, excitement, disturbance howling, the change of voice, sexual accelaration, foreign body swatting and attacked to human and ani-mal and found to be died after two or four days. 5. In the seasonal outbreaks of rabies, 8 heads of the highest incidence were occured in win-ter followed by 4 heads in autumn, 1 head in spring and 1 head in summer. 6. The first outbreaks of rabies was reported in Chulwon and then transmitted into Hwachun, Yangku and Inje in turn. 7 The infectious source was supposed to be wild animals such as laccon dog, badger etc. living around the D. M. Z.

• 한국게임학회 논문지
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• 제12권4호
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• pp.33-44
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• 2012

최근 온라인게임 산업의 발전에 따라 게임 산업의 구조는 콘텐츠 제작 중심에서 서비스 공급으로 확장되고 있다. 이에 따라 게임운영 서비스와 이에 대한 유저 만족도에 대해 그 중요성이 점차 강조되고 있다. 그러나 게임산업에 대한 기존 연구는 여전히 콘텐츠 개발 측면에 초점을 맞추고 있어, 게임운영 서비스에 대한 논의가 크게 이루어지지 못하고 있다. 본 연구는 게임운영 서비스에 대한 유저 만족도를 살펴보았으며, 유저의 게임이용 기간과 콘텐츠 만족도와 더불어 서비스 만족도가 게임 충성도에 미치는 영향력을 조사하였다. 연구 결과, 게임운영 서비스에 대한 만족도를 유지하는 것은 게임을 지속적으로 사용하는 것과 게임 충성도를 높이는데 유의미한 연관성이 있는 것으로 나타났다. 특히 라이트 유저의 경우, 서비스 만족도가 높으면 게임사용시간이 길어질수록 게임에 대한 충성도가 확연히 높아지는 것으로 나타났다.

• 한국병원경영학회지
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• 제14권1호
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• pp.36-61
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• 2009

This study focused on finding the variation of medical service utilization, paths of medical service utilization and medical payments of the patients died by cerebrovascular diseases. For this study, data of the one-year episodes of the health insurance subscribers died in 2004 were selected. The frequency of medical visits, the lengths of stays, the days of outpatient visits, the total period of medical services and the total medical payments were compared by the characteristics of the suppliers and utilizers. This study is useful in reviewing the equity of medical service utilization because it analyzed variance in utilization by episodes. In oder to collect accurate data of the patients died by cerebrovascular diseases in 2004 the 2004 reimbursement data of all medical institutions were matched to the data of funeral fee payment by the National Health Insurance Corporation from January 2004 to May 2005. The major results of the study are as follows. The variation of medical service utilization of cerebrovascular diseases was influenced by supplier factors suppliers, such as types and locations of medical institutions and user factors such as sex and age. It was suspected that the reimbursement by fee-for-service contributed to the variation quite a lot, but we could not compare the variation between the different reimbursement systems in Korea. On the basis of analyzing results this study suggests that the factors of suppliers and utilizers should be reviewed to reduce the under use and over use expressed by variations of medical service. The processes of care, effective communication and management system should be investigated for the equity of medical service utilization and also. alternative medical services would be recommended to reduce the high medical payment. Additionally to find other causes of variation further in depth study controling the severity of diseases, socio-economic status of the users and the system factors is required.

• 원예과학기술지
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• 제34권3호
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• pp.372-382
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• 2016

In this study, we investigated the effect of seed collection stage and alternating temperature on the germination of Deutzia paniculata (Hydrangeaceae). The seeds were collected from naturally growing D. paniculata populations in Mt. Palgong, Gyeonsangbuk-do, Korea every two weeks over a three month period from August through October, 2014, totaling five collections. We examined seed characteristics such as seed size (length and width) and weight, and germination percentages for each collection stage under four different germination temperature regimes. We also examined germination after 30 and 60 days of cold moist stratification. Each collection phase had a different germination percentage and the lowest germination percentage was observed in the seeds from phase I (average GP of 15.7%). The germination percentage was similar at the later collection phases and in the higher temperatures suggesting that later collection times and higher temperatures are optimal for D. paniculata germination. We found that the optimum collection stage with high viability and germination percentage of for D. paniculata was during the middle of the September.

• Industrial Engineering and Management Systems
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• 제15권2호
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• pp.123-130
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• 2016

We introduce a queueing system with general arrival stream and exponential service time under the N-policy, where customers may renege during idle period and arrival rates may vary according to the server's status. Probability distributions of the lengths of idle period and busy period are derived using absorbing Markov chain approach and a method to obtain the optimal control policy that minimizes long-run expected operating cost per unit time is provided. Numerical analysis is done to illustrate and characterize the method.

• Asian-Australasian Journal of Animal Sciences
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• 제7권4호
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• pp.475-479
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• 1994

Postweaning performance data were obtained on 401 group fed purebred Angus calves from 24 selected sires (12 high and 12 low feed conversion sires) from 1983 through 1986 at the Northwestern Branch of the Ohio Agricultural Research and Development Center. A single generation divergent selection experiment was replicated four times (1983, 1984, 1985 and 1986) to obtain an realized heritability estimate for postweaning feed conversion. The 140-d postweaning period was divided into five 28-d periods. Realized heritability estimates for feed conversion by 28-d periods fluctuated greatly and demonstrated no particular pattern. Heritability was highest for the fourth period (between d 85 and 112 of postweaning period, 0.61). Thus, beef producers could successfully select for feed conversion.

• 한국조리학회지
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• 제10권3호
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• pp.83-96
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• 2004

According to construction of global administration environment, all over the world was ended up in infinite competition period. Because eating out company also competes with another company, it must enjoy competitive power high position to secure high position continuously, classified by formation constituent's individuation and two aspects of organic special quality by the factor. Individuation classified by formation constituent's business ability, personal relations, age factors of Information Technology, and organic special quality classifies by factor of formation culture and result that analyze eating out company's business condition competitive power reinforcement effect factor is same as following. First, was construed by company culture, personal relations, business ability period of ten days with family Restaurant, and Information Technology showed that do not influence. Competitive power reinforcement effect factor with special restaurant was construed by company culture, personal relations, business ability period of ten days, and fast food company culture and Information Technology factor with hotel restaurant company culture by competitive power reinforcement effect factor construe.