• 한국통신학회논문지
• /
• 제19권7호
• /
• pp.1321-1334
• /
• 1994

본 논문에서는 고도 지능망내의 한 물리적 실체로서 통신서비스 이용자와 망간의 각종 정보교환을 지원하는 Intellingent Peripheral(IP)에서의 서비스(특수지원) 요청들을 처리하는 방식들을 제안하고 각 방식들의 성능을 분석, 비교하였다. 여기서 IP시스템은 우선순위가 있는 서비스 요청과 일반순위의 서비스 요청을 blocked-call-delayed 방식으로 처리하는 큐잉시스템으로 모델링되었고, 서비스가 지연되는 요청들은 유한 크기의 버퍼에 저장된다고 가정하였다. 방식1은 우선순위가 있는 요청만이 저장될 수 있으며, 우선순위가 있는 요청을 위한 별도의 서버를 가지고 있다. 다른 3가지 방식(방식 II,III,IV)들은 우선순위가 있는 요청용 서버를 별도로 두지 않으며, 또한 모든 호들을 저장할 수 있도록 허용하는 대신에 버퍼가 차면 일반요청은 축출될 수 있도록 한 것이다. 이러한 네 가지 방식에 대하여 각각의 블로킹확률과 지연시간 분포를 수치적으로 구해본 결과, 별도의 서버를 두지 않는 방식들이 별도의 서버를 두는 방식보다 블록킹확률면에서 유리함을 알 수 있었다. 또한, 별도의 서버를 두지 않는 방식들이 별도의 서버를 두는 방식보다 블록킹확률면에서 유리함을 알 수 있었다. 또한, 별도의 서버를 두지 않는 방식들의 성능을 비교한 결과, 우선순위가 있는 요청은 first-in, first-out으로 일반요청은 last-in, first-out 방식으로 처리하는 것이 가장 유리함을 알 수 있었다.

• International Journal of Internet, Broadcasting and Communication
• /
• 제10권3호
• /
• pp.26-34
• /
• 2018

In this paper, we propose a scheduling scheme that can efficiently serve I/O requests having deadlines in flash storage. The I/O requests with deadlines, namely, real-time requests, are assumed to be issued for streaming services of continuous media. Since a Web-based streaming server commonly supports downloads of HTMLs or images, we also aim to quickly process non-real-time I/O requests, together with real-time ones. For this purpose, we adopt the well-known rate-reservation EDF (RR-EDF) algorithm for determining scheduling priorities among mixed I/O requests. In fact, for the use of an EDF-style algorithm, overhead of task's switching should be low and predictable, as with its application of CPU scheduling. In other words, the EDF algorithm is inherently unsuitable for scheduling I/O requests in HDD storage because of highly varying latency times of HDD. Unlike HDD, time for reading a block in flash storage is almost uniform with respect to its physical location. This is because flash storage has no mechanical component, differently from HDD. By capitalizing on this uniform block read time, we compute bandwidth utilization rates of real-time requests from streams. Then, the RR-EDF algorithm is applied for determining how much storage bandwidth can be assigned to non-real-time requests, while meeting deadlines of real-time requests. From this, we can improve the service times of non-real-time requests, which are issued for downloads of static files. Because the proposed scheme can expand flexibly the scheduling periods of streams, it can provide a full usage of slack times, thereby improving the overall throughput of flash storage significantly.

• 영어어문교육
• /
• 제13권3호
• /
• pp.77-97
• /
• 2007

To compare data on the speech act of requests from two different methods, a study was conducted in which both native and non-native speakers of English participated as subjects, and data were collected by means of actual e-mail writing and DCT (discourse completion test). The analysis of requests from the two different data-gathering methods showed that despite some similarities, considerable differences existed between e-mail and DCT requests in several important aspects of requests such as amount of talk, directness level, downgraders and supportive moves which play an important role in making a given request sound less imposing and more polite. Also it was shown that requests of non-native speakers differed considerably from requests of native speakers in terms of the four aspects of requests across type of data-gathering methods. Based on the findings, some suggestions were made for both further research and L2 classrooms.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2015년도 추계 학술논문 발표대회
• /
• pp.95-96
• /
• 2015

This paper aims to identify patterns in users' requests for facility management (FM) services in higher education facilities. We analyzed data collected from 309 service request forms, made available via a department office and an enterprise resource planning system, at a private university in Seoul between May 2009 and February 2015. We found that the number of user requests were the highest in September and October. Requests for electronic and communication (E/C) services outnumbered those for architectural services and mechanical and plumbing (M/P) services. Repair requests for doors and windows were the most common under architectural services; repairs for air-conditioners and radiators were the most commonly under M/P services; and installation of electrical outlets, telephone wires, and internet services were the most sought-after E/C services. Maintenance requests were received every three months, while repair requests were received every six or seven months.

• 영어어문교육
• /
• 제12권2호
• /
• pp.153-176
• /
• 2006

This paper examines "Difference in Requests." The study of speech acts is a crucial area in sociolinguistics and ethnolinguistics, and has aided in the development of TESOL. It also provides a useful means of relating linguistic form and communicative intent. This paper concentrated on 3 request strategies, which were requests made with an explanation, requests made without an explanation and no requests. The purpose of this study, and of concern in TESOL, was to discover whether Koreans framed their requests differently under different conditions. Based on these differences, I wanted to ascertain whether Koreans who spoke English as a second language, and who have lived in the United States, frame their requests as they would in their native tongues thus creating the potential for sociolinguistic failure, or use American sociolinguistic style. As the results of the study, it was found that in the majority of cases, Americans made an explanation with a request. In many cases the Koreans living in Korea would not give an explanation when making a request. Rather, they were direct in request. In many cases the Korean speaking English and living in the US had adopted the American request strategy of giving an explanation.

• 한국실내디자인학회논문집
• /
• 제19권3호
• /
• pp.145-153
• /
• 2010

The purpose of this study is to find out apartment residents' consciousness and needs of their community facility by age group as to provide basic data for future community facility planning. For this study, 12 national rental apartment complexes in the Seoul Metropolitan area were selected, and the residents of diverse age groups were surveyed including children, adolescents, adults, and elders regarding their attitude, satisfaction, and necessity of using the community space, and their requests for programs and locations of the community space. As for the analysis method, statistical software, SPSS for Windows 14.0, was used, and total of 891 questionnaires were analyzed for the survey. The findings of this study are as follows. 1) As to major activities in national rental apartment community facilities, older residents tended to show more interest in health, while younger residents tended to show more interest in leisure. 2) The residents' satisfaction about community facilities was the highest among children, and was the lowest among adults in general. Particularly, the facilities that were designed for specific age groups of users showed high satisfaction among users. Therefore, community facilities need to be planned in consideration of each age group of users. 3) Residents' requests for community facilities, in general, were found more among adults and elders than among children and adolescents. Elders made requests for the green environment, and adults made requests for facilities for family uses. 4) As to the results of surveying the requests about community facility programs, children, adolescents, and adults all made requests for programs regarding leisure activities. However, elders made requests for programs related to health or communication with neighbors. Therefore, the purposes and requests of using community facilities need to be identified precisely and then plan them accordingly and effectively.

• 영어어문교육
• /
• 제11권4호
• /
• pp.49-77
• /
• 2005

This paper has an aim to examine English native speakers' requests, and offer an instructional technique to develop EFL students' pragmatic ability. For this purpose, English-speaking native speakers' requests were collected in six different face-threatening situations, and analyzed in three ways: directness levels, internal modification and sequence of request. The analysis of requests showed that they were realized mainly through conventionally indirect level in most situations, were internally modified frequently through the use of downgraders, and had a certain sequence of utterances realizing a request. On the basis of these findings, two kinds of interactional activities (Jigsaw and pair work) were provided as sample activities to promote EFL students' pragmatic knowledge about the appropriate ways of making requests given the fact that pragmatic errors can be more serious and more problematic than grammatical errors in social interaction.

• 아동학회지
• /
• 제22권1호
• /
• pp.213-226
• /
• 2001

In this study of intentions and strategies of children's requests and teachers' responses, the subjects were 20 teachers and 610 4- and 5-year-old children in 10 kindergartens. Each teacher wore an audio-recorder and one-to-one interactions between teacher and child were audiotaped during a 40-minute free play session. Children made requests most frequently with the intention of getting attention; they also made requests for the purpose of seeking information. In making requests, children utilized various strategies including direct, indirect, and physical strategies. Furthermore, their strategies were dependent on intention. Teachers most frequently responded to children with the strategy of committed compliance. Results were discussed in terms of roles of active children and responsive teachers in forming and maintaining good teacher-child relationships.

• 정보처리학회논문지A
• /
• 제8A권4호
• /
• pp.293-298
• /
• 2001

본 논문에서 구현한 더블큐 웹서버는 동시에 들어오는 요청들을 두 가지로 분류하여 서비스한다. 캐쉬되어 있는 문서를 요구하는 요청은 서비스 큐에 넣고, 캐쉬되지 않은 문서를 요구하는 요청은 기다림 큐에 넣는다. 더블큐 웹서버는 서비스 큐의 모든 문서를 서비스 한 후 기다림 큐의 요청을 서비스한다. 이 방식은 디스크 접근 오버헤드를 줄이기 위해 캐쉬 된 문서의 서비스를 우선하는 정책으로 아파치 웹서버와 비교 실험 결과 서버의 성능과 평균 사용자 응답 시간을 향상시켰다.

• 한국응급구조학회지
• /
• 제25권3호
• /
• pp.63-70
• /
• 2021

Purpose: The study aimed to collect data from patients who were rejected by emergency requests for transfer to a tertiary hospital through 119 EMT and to analyze the data in the hospital to improve the plan. Methods: We analyzed 4,702 cases of emergency requests made by patients who were rejected by 119 emergency assistance out of the 22,568 patients who visited the emergency medical center in the C area of G metropolitan city from January 2018 through December 2020. The collected data were analyzed using IBM SPSS Statistics Version XX (IBM Corp., Armonk, N.Y., USA). Results: The major medical department with the largest number of such cases was the department of emergency medicine, with 2,519 cases (53.6%). Simple bruises were the most common diagnosis, with 2,819 cases (61.2%). KTAS classification was the highest with 3,562 patients (75.8%) in grade 4. As for the results, 4,084 patients (86.9%) were discharged from the hospital. Conclusion: Most of the patients who were rejected by emergency requests were non-emergency patients and were discharged from the hospital. emergency requests must be rejected at public relations and sites. In addition, the law should be amended to specifically present the reasons for refusal of emergency requests.