• Title/Summary/Keyword: Shared

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Implementation of the Shared Memory in the Dual Core System (Dual Core 시스템에서 Shared Memory 기능 구현)

  • Jang, Seung-Ju
    • The Journal of the Korea Contents Association
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    • v.8 no.9
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    • pp.27-33
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    • 2008
  • This paper designs Shared Memory on the Dual Core system so that it operates a general System V IPC on the Linux O.S. Shared Memory is the technique that many processes can access to identical memory area. We treat Shared Memory which is SVR in a kernel step. We design a share memory facility of Linux operating system on the Dual Core System. In this paper the suggesting of share memory facility design plan in Dual Core system is enhance the performance in existing an unity processor system as a dual core practical use. We attemp a performance enhance in each CPU for each process which uses a share memory.

Service model development and importance analysis using shared economic service - As a specialization center for mail service (공공서비스의 공유경제 서비스모델 도입 위한 중요요인 분석 -우체국 서비스를 중심으로)

  • Park, Sung Hwan;Leem, Choon Seong
    • Journal of the Korea Convergence Society
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    • v.10 no.5
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    • pp.181-188
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    • 2019
  • People can easily use a shared economic service system based on ICT technology. Most of the shared economic services are provided by private companies, and discussion on public goods is insufficient. If we look at the current shared economic service from the point of view of courier service, $\ddot{U}ber^{\prime}s$ system can be an alternative. The post office courier service uses ICT technology but differs from the service of the shared economy. This study uses Delphi analyzer method and AHP methodology to derive important factors in introducing shared economic system. As a result, socioeconomic characteristics were found to be the most important in the upper tier, and the shared economic platform, sharing of idle resources, popularization of smartphone, and increase of e - commerce were the four important factors in the lower tier. In order to maximize efficiency, which is the essence of the shared economy, the necessity of introduction into the shared economic system and important factors in the introduction of public goods are presented.

An Improved Shared-Path Protection Algorithm for Double-Link Failures in Meshed WDM Optical Networks

  • Wang, Xingwei;Guo, Lei;Li, Lemin;Wei, Xuetao
    • Journal of Communications and Networks
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    • v.10 no.3
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    • pp.331-337
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    • 2008
  • In this paper, we investigate survivability in wavelength division multiplexing (WDM) mesh networks and propose a new algorithm called improved shared-path protection (ISPP) to completely tolerate the double-link failures. Compared with previous algorithms for protecting double-link failures, i.e., shared-path protection (SPP) and shared-link protection (SLP), the advantage of ISPP is to allow primary paths and backup paths to share the mixed wavelength-links based on the proposed new rules in which some primary wavelength-links can be changed to mixed wavelength-links, which can be shared by primary paths and backup paths. In addition, some mixed wavelength-links also can be shared by different backup paths for saving resources. Simulation results show that ISPP algorithm performs better in resource utilization ratio and blocking probability than conventional SPP and SLP algorithms.

Shared Leisure Time with Spouses and Marital Satisfaction (부부의 공유여가시간과 결혼만족도)

  • 이기영
    • Journal of the Korean Home Economics Association
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    • v.33 no.3
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    • pp.113-126
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    • 1995
  • The purposes of this study were to investigated ; 1) The amount of shared leisure time with spouses. 20 The differences of the mount of shared leisure time according to socio-demographic variables. 3) The relationship between marital satisfaction and the amount of shared leisure time. Data for 291 couples were gather from using structured questionnaire and time diary. The major findings were ; 1) Spouses spent together 2 hours and 8 minutes on the average per day in leisure. Time for active leisure was 1 hour and 36 minutes, while that for passive leisure was 32 minutes. 2) The total shared leisure time were significantly related to husband's age, degree of husband's education, and employment status of wife. The active shared leisure time were related number of children and husband's age. and the passive shared leisure time were related to degree of husband's education, and employment status of wife. 3) The more couples spent together in leisure, the higher their marital satisfaction became.

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Heuristic Task Allocation for Multiprocessor Controller Systems Considering Shared Resource Access

  • Seon, Ryou-Myung;Hyun, Kwon-Wook
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.140.3-140
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    • 2001
  • This paper analyzes a blocking that is due to shared resource in multiprocessor system. A proposed analysis for shared resource suggests a scalable and amendable scheduling method about task allocation. An equation of shared resource blocking is proposed by a throughput at common bus and a ratio of throughput during time period, it is included a parameter of tasks scheduling. Using this equation, a new guideline for task allocation of multiprocessor is presented. Finally, in proposed system a model simulations for the proposed blocking model is given by a deterministic ratio of shared resource.

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Implementation of Kernel Module for Shared Memory in Dual Bus System (듀얼 버스 시스템에서의 공유 메모리 커널 모듈 구현)

  • Moon, Ji-Hoon;Oh, Jae-Chul
    • The Journal of the Korea institute of electronic communication sciences
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    • v.10 no.5
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    • pp.539-548
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    • 2015
  • In this paper, shared memory feature was developed in multi-core system with different OS for different processor-specific bus, while conducting an experiment on shared memory feature between the two processors based on embedded Linux system. For the purpose of developing shared memory in dual bus structure, memory controller was used, while managing shared memory segment through list data structure. For AMP multi-core test, Linux OS was installed in 2 processor cores. In addition, it verified the creation and use of shared memory by using kernel module implemented to test shared memory.

A Study on the Value of Shared Real-time Stock Information in Two-Echelon Distribution Supply Chains (2계층 분배형 공급사슬에서 실시간 공유 재고 정보의 가치에 관한 연구)

  • Seo, Yong-Won;Jung, Sung-Won;Hahm, Ju-Ho
    • IE interfaces
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    • v.13 no.3
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    • pp.444-454
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    • 2000
  • Due to the improvement of modern information technologies, sharing stock information among the supply chain members is a common practice nowadays. Many companies are planning to adopt the information systems to possess the real-time shared stock information. Thus, it is needed to quantify the value of shared stock information. The purpose of this paper is to evaluate the value of the shared stock information for two-echelon distribution systems. Existing reorder policies can be classified into installation stock policies and echelon stock policies. Since installation stock policies do not utilize the shared stock information, and both classes of policies may show poor performances for distribution systems, we cannot evaluate the value of the shared stock information with the existing policies. Thus, we provide a new type of reorder policy, named order risk policy. We define the order risk using marginal analysis, and prove the optimality. Through computational experiment that compares the order risk policy with the existing policies, it is shown that a significant cost reduction is achieved with the effective utilization of the shared stock information. We also show the effect of the system characteristics on the value of the shared stock information.

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Space Composition Characteristics Analysis of the Community-Centered Shared Office (공유오피스의 커뮤니티 중심 공간 구성 특성)

  • Lee, hye-su;Nam, Kyung-Sook
    • Korean Institute of Interior Design Journal
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    • v.27 no.1
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    • pp.3-11
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    • 2018
  • The number of shared offices has increased and changed within the flow of the era into various forms in recent days. Co-working spaces and related shared space businesses are growing fast, keeping pace with the trend recently. It is confirmed that the need of spaces grew 180% since 2015 to 2017. Most of the shared offices in Seoul are placed in Gangnam circle, it is verified that shared office is providing work, space, and community by visiting cases of foreign companies, domestic companies, local companies. Meanwhile, shared space can be categorized into serviced office, co-working space, virtual office, and daily office. It is to consider various target levels by leasing service or the difference of costs. It is divided into forms of dispersion, circulation, and concentration and is planned to increase the utilization of communities' traffic according to the allocation of shared office. The business is conducted network-centered. During the process of communication, members can get chances to exchange and build communities. They are making business ecosystem which they can coexist and grow together. Shared offices have a view of a solution to empty rooms and will last for a while, and it is expected that co-working system be settled as office space and giving people sense of belonging on their workspace.

A Study on the Time Shared with Parents and Children (부모와 자녀의 공유시간에 관한연구)

  • 이기영
    • Journal of Families and Better Life
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    • v.16 no.2
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    • pp.123-136
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    • 1998
  • The purpose of this study is to define the structure and characteristics of the time shared with parents and children. The three specific questions are asked. (1) How much time do parents and children share with? (2) What kind of effects do the demographic factors and the psychosocial factors have on the time shared with parents and children? (3) And how can the families be classified into different types according to the time shared with parents and children? For the empirically proved answers the 161 full0time housewife couples and the 174 wife employed couples in Seoul and Kyoungki-do are surveyed with a self reported time diary and a structured questionare. Such statistical methods as frequency percentage mean tobit analysis cluster analysis oneway ANOVA and Ducan's multiple range test are used to analize the data Main findings from this empirical study can be summarised like this. First the two largest parts of the time shared with parents and children are eating and TV atching. Second the eldest child's age degree of wife's education the number of children wife's employment status family income degree of the family cohesion the couple's attitude toward marriage and role salience are significantly related to the various kind of time shared with parents and children. Third the families are classified by the time shared with parents and children into three types. type 1: the family shared least time with type 2: the family shared passive leisure with type 3: the family shared active leisure with. Type 3 has very distinctive characteristics. This type of family's eldest child is youger than any other family's and this type of family has a full time housewife. And their family cohesion is higher and their couple's relationship is oriented more companionship.

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The Effects of Shared Leadership on Team Performance and Team Commitment of Team-Based Learning in Nursing Students: Mediating Effects of Team Trust (간호학생의 팀기반학습에서 공유리더십이 팀성과 및 팀몰입에 미치는 영향: 팀신뢰의 매개효과)

  • Han, Ju-Rang
    • Journal of Digital Convergence
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    • v.14 no.12
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    • pp.303-311
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    • 2016
  • This study was to identify the effects of shared leadership on team performance and team commitment of Team-Based Learning(TBL) in nursing students and verify the mediating effects of team trust on the relationships between shared leadership and team performance and team commitment. Data were collected via survey from 99 nursing students to participate in TBL for 6weeks, in June 2016. The major findings were as follows: Shared leadership had a significant correlation with team performance and team commitment and team trust. Shared leadership had a positive effect on team performance and team commitment. Team trust had a partial mediating effect in the relationship between shared leadership and team commitment. The results of study show that shared leadership of TBL is very important for high team performance and team commitment and shared leadership make effect on team commitment under the mediation of team trust. Therefore, it is necessary to increase shared leadership and team trust for high team effectiveness in TBL.