• 산업공학
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• 제25권4호
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• pp.450-457
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• 2012

This study addresses the call admission control(CAC) problem for OFDMA wireless communication systems in which both subcarriers and power should be considered together as the system resources. To lessen the exccessive allocation of radio resources for protecting handoff calls, the proposed CAC allows the less data rate than their requirements to handoff calls. The CAC problem is formulated as a semi-Markov decision process(SMDP) with constraints on the blocking probabilities of handoff calls. Some extensive experiments are conducted to show the usefulness of the proposed CAC model.

• ETRI Journal
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• 제37권5호
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• pp.917-921
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• 2015

We consider a multiserver system with two classes of customers with preemption, which is a widely used system in the analysis of cognitive radio networks. It is known that the optimal admission control for this system is of threshold type. We express the expected total discounted profit using the total number of customers, thus reducing the stochastic optimization problem with a two-dimensional state space to a problem with a one-dimensional birth-and-death structure. An efficient algorithm is proposed for the calculation of the expected total discounted profit.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 추계학술발표대회 논문집
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• pp.39-43
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• 2005

Here this Study is purposed importance of Public area and attend to planning of Admission Space so foster the growth of public area in super high - rise building apartment at present that, for contribution so Consider about Admission Space planning purpose of a Major building in super high - rise building apartment. The process of this Study 1) Consider Indispensable action and Choice action in theory of 'Jan Gehl'. 2) Express one's condolence about two housing development of super high - rise Apartment in Busan City. 3) Analysis by theory of 'Jan Gehl'. about two housing development of super high - rise Apartment in Busan City. 4) I have a result as being Comparison two housing development

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권5호
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• pp.1049-1068
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• 2011

In this paper a simple and effective call admission control (CAC) scheme is proposed for the emerging interleave-division multiple-access (IDMA) systems, supporting a variety of traffic types and offering different quality of service (QoS) requirements and priority levels. The proposed scheme is signal-to-interference-plus-noise ratio (SINR) evolution based CAC (SE-CAC). The key idea behind the scheme is to take advantage of the SINR evolution technique in the process of making admission decisions, which is developed from the effective chip-by-chip (CBC) multi-user detection (MUD) process in IDMA systems. By virtue of this semi-analytical technique, the MUD efficiency can be estimated accurately. Additionally, the computational complexity can be considerably reduced. These features make the scheme highly suitable for IDMA systems, which can combat intra-cell interference efficiently with simple CBC MUD. Analysis and simulation results show that compared to the traditional CAC scheme considering MUD efficiency as a constant, the proposed SE-CAC scheme can guarantee high power efficiency and throughput for multimedia traffic even in heavy load conditions, illustrating the high efficiency of CBC MUD. Furthermore, based on the SINR evolution, the SE-CAC can make accurate estimation of available resource considering the effect of MUD, leading to low outage probability as well as low blocking and dropping probability.

• 대한간호학회지
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• 제24권1호
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• pp.18-32
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• 1994

It is important to understand that patients with hemiplegia are under stress during the rehabilitation process. This study was designed to determine what changes occur in the stress perceived by these patients during the rehabilitation process. and what changes occur in the ways they coped with stress. A decriptive study with a longitudinal design was conducted. A total of 57 patients with hemiplegia who were admitted to one general hospital made up the sample for this study. A questionnaire, observations and interviews were used for the data collection which was done in three phases(within one week after admission : within one week before discharge ; within one month after discharge ). Data were analyzed using t-test, ANOVA repeated measures of ANOVA, and post hoc paired t -test, Bonferroni correction. The results of this study are : 1. Changes in the perception of stress during the rehabilitation process : There was a statistically significant differencs in the perception of stress among these patients during the rehabilitation process. On the post-hoc test. the perception of stress showed a statistically significant decrease from admission to discharge. The perception of psychological stress was high during the rehabilitation process as compared with the perception of physical and social stress. 2. Changes in the way the patients coped during the rehabilitation process : On admission passive coping was used by most of the subjects(91.2％). Passive coping showed an decrease from admission to discharge, but an increase from discharge to follow-up at one month post discharge. There was, however, no statistically significant changes in the way the patients coped during the rehabilitation process. 3. Changes in perception of stress during the rehabilitation process according to variables. Perception of stress among patients classified as So-Um was higher during the rehabilitation process, when compared with patients classified as So- Yang and Tae-Um. There was, however, no statistically significant difference in perception of stress over time. The patients with right sided paralysis perceived higher stress than those with left sided paralysis. There was, however, no statistically significant difference in perception of stress over time. Hence, stress was not influenced by which side was paralyzed th frequency of the relapse of the disease, or the time in the rehabilitation process. 4. Changes in coping during the rehabilitation process according to variables. There was a statistically significant difference in the way the patients coped at follow- up according to the three different kinds of the constitution groups. In other words, coping was not used by patients classified as Tae-Um but was used by those classified as So-Um. On the repeated measures of ANOVA, there was a statstically significant difference in stress over time, and an interaction between constitution and time. But the way of coping during the rehabilitation process was not influenced by which side was paralyzed nor by the frequency of the relapse of the disease. In conclusion, perception of psychological stress was high during the rehabilitation process, as compared to perception of physical and social stress. There was a statistcally significant difference in the perception of stress over time, Perception of stress showed a gradual decrease from over admission to follow-up period. There was. however, no statistically significant difference in the way of coping over time. Passive coping was used by most of patients. In the study, these findings suggest a need for nursing care related to the psychological support for patients with hemiplegia both in the hospital as well as at home, and the need for education and counseling on independent self-care to help the hemiplegic patients adapt to stress using active coping.

• 직업교육연구
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• 제37권3호
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• pp.47-63
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• 2018

본 연구의 목적은 특성화고 미래인재전형 담당교사들의 역량모델을 개발하는 것이다. 미래인재전형은 특성화고의 특별전형 중 하나로, 교과 성적과 상관없이 취업 및 창업의지, 소질과 적성을 가진 학생들을 선발하기 위해 2016년 서울시 소재 특성화고에 도입되었다. 본 연구는 미래인재전형 담당교사들의 역량모델을 개발하기 위해 특성화고 교사 191명에 대한 설문조사를 실시, 요인분석을 실시하고 고경력자와 일반 경력자의 응답을 비교 분석하였다. 본 연구결과로 나타난 특성화고 미래인재전형 담당교사의 핵심역량은 3개 역량군, 14개 역량으로 나타났다 : 1) 공통 역량군은 입학담당자로서 직무를 수행하는 데 기본적으로 필요한 역량으로 (1)입학전형 담당자로서의 책임감, (2)평가자로서의 윤리성, (3)의사소통 역량, (4)팀워크 역량을 포함한다. 2) 기획 역량군은 미래인재전형 선발에 적합한 모든 전략과 세부 계획을 설계하는데 필요한 역량으로 (5)특성화고 입학전형에 대한 이해력, (6)인재상에 따른 평가 준거 및 요소추출 역량, (7)면접 문항 개발 역량, (8)평가 기준 개발 및 지침 이해 역량, (9)평가자간 신뢰도 제고 역량 등이다. 3) 실행 역량군은 성공적인 미래 인재 선발에 적용하고 실천할 수 있는 역량으로 (10)면접 진행 역량, (11)면접 답변에 대한 실시간 평가 역량, (12)평가결과를 객관화, 수치화하는 역력, (13)평가결과에 대한 통합적 해석 역량, (14)평가 결과에 대한 의사결정 역량이 포함된다.

• ETRI Journal
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• 제34권6호
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• pp.827-837
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• 2012

We propose a flow admission control (FAC) for setting up a wire-speed connection for new flows based on their negotiated bandwidth. It also terminates a flow that does not have a packet transmitted within a certain period determined by the users. The FAC can be used to provide a reliable transmission of user datagram and transmission control protocol applications. If the period of flows can be set to a short time period, we can monitor active flows that carry a packet over networks during the flow period. Such powerful flow management can also be applied to security systems to detect a denial-of-service attack. We implement a network processor called a flow management network processor (FMNP), which is the second generation of the device that supports FAC. It has forty reduced instruction set computer core processors optimized for packet processing. It is fabricated in 65-nm CMOS technology and has a 40-Gbps process performance. We prove that a flow router equipped with an FMNP is better than legacy systems in terms of throughput and packet loss.

• 한국경영과학회지
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• 제35권1호
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• pp.83-95
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• 2010

This paper considers a firm that operates make-to-stock and make-to-order facilities in successive stages. The make-to-stock facility produces components which are consumed by the external market demand as well as the internal make-to-order operation. The make-to-order facility processes customer orders with the option of acceptance or rejection. In this paper, we address the problem of coordinating how to allocate the capacity of the make-to-stock facility to internal and external demands and how to control incoming customer orders at the make-to-order facility so as to maximize the firm's profit subject to the system costs. To deal with this issue, we formulate the problem as a Markov decision process and characterize the structure of the optimal inventory allocation and customer order control. In a numerical experiment, we compare the performance of the optimal policy to the heuristic with static inventory allocation and admission control under different operating conditions of the system.

• 대한간호학회지
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• 제31권5호
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• pp.835-845
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• 2001

This study was to identify the relationship between personality type, college admission SAT scores and GPA scores of student nurses. Method: The data was collected from 270 student nurses enrolled in a baccaleaureate program in Seoul. MBTI was used to identify students' personality and SAT score and GPA score were collected over 4 years. The collected data was analyzed by using SPSS Win. package. Result: 1. There were slightly more extrovert (E) type (54.4%) students than the introvert (I) type; more sensing (S) type (71.1%) than the intuitive (N) type. 2. The introvert type students had significantly higher SAT scores than those of the extrovert type (p=.002). 3. The judging type students had significantly higher GPA scores throughout their college years than the perceiving type. 4. There was no statistically significant relationship between SAT and GPA scores. SAT scores did not accurately predict students' academic achievement in college in this sample. Conclusion: The distribution of the personality types in the sample was different from the general population which may suggest that college admission criteria is biased toward certain personality type. Since different personality types process information and cope with the outside world differently, effective teaching strategies need to be considered for each class.

• Child Health Nursing Research
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• 제5권1호
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• pp.59-69
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• 1999

The main purpose of this study is to identify nursing needs of parents who have hospitalized child. Research design is a descriptive survey. The subjects for the study were 79 parents who have hospitalized child at a pediatric ward of one of the general hospital attached to a university in J city. The data was collected by researchers using a structured questionnaire. The questionnaire was Likert type 5 point scale, composed of 5 categories with 61 items. The data was analyzed by SPSS/PC. The results of the study were as follows ; 1) Mean score of nursing needs of subjects were 3.93 at 2nd day of admission and 3.99 at 7th day of admission. 2) Among the categories, the highest nursing need at the End day and 7th day of admission was ‘dilect nursing’, in desending order, ‘facilities and environment’, ‘education and counseling’, ‘nursing assessment’. The lowest nursing need was ‘reference’. 3) Differences between the nursing needs of subjects at 2nd day and 7th day were as follows : (1) By categories, there was a significant difference only in the ‘reference’ categoly(t=2.74, P=.008). (2) By items, there were significant differences in items of ‘to check necessary materials(t=2.31, P=.024)’, ‘to understand family function and family relationship(t=2.12, P=.041)’, ‘to set up study room(t=2.22, P=.030)’, and ‘to mediate parent's meeting group(t=3.89, P=.000)’. The above result indicated that nursing needs of parents with hospitalized child were above average, especially very high in items about disease process, and items directly associated with treatment and nursing care. So, nurses have to focus on information about the patient's state of disease, treatment, test and procedure, and in efficiently giving direct nursing care to implement mure effective care for the hospitalized children and their parents. And some future researche is needed to identify the difference of degree of nursing needs of parents with hospitalized child according to admission duration using a different sample and a longer sampling interval.