• Title/Summary/Keyword: time resource

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IoT Device Testing for Efficient IoT Device Framework

  • Gong, Dong-Hwan
    • International Journal of Internet, Broadcasting and Communication
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    • v.12 no.2
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    • pp.77-82
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    • 2020
  • IoT devices frequently require input resources to communicate with various sensors or IoT platforms. IoT device wastes a lot of time as idle time or waiting time to check the data of the input resource and use the input resource. In addition, IoT devices use various input resources. We compares and analyzes input idle time and input waiting time generated from hardware serial input resource, software serial input resource, digital port input resource, and analog port input resource using Arduino widely used as IoT device. In order to design the IoT device framework, it is necessary to understand the characteristics of input resources and to design them to minimize unnecessary input idle time and input waiting time. The analog input wait time has a much larger input wait time than the digital input wait time, so it must be designed to receive analog information periodically at the appropriate timing. The characteristics of the input resources analyzed in this way help to design an efficient IoT device.

A Study on Optimal Lead Time Selection Measures of the Construction Materials (건설자재의 적정 리드타임 산정에 관한 연구)

  • Lee, Sang-Beom
    • Journal of the Korea Institute of Building Construction
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    • v.4 no.1
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    • pp.105-110
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    • 2004
  • Resource procurement is an important management area because cost of resource covers 40% of total construction project cost and resource delivery has direct relationship with project performance. Integration of cost provides various potentials for effective and efficient project control. This study investigates the usefulness of time in resource procurement management focused on materials. These days, construction projects have characterized manufacture because of industrialization and component. Therefore, application of systematic resource planning has been requested in the construction. There are many companies conducting procurement of resource on the web by applying MRP, ERP etc. in the construction. However, in applying them in the construction yet, there is obstruction. MRP has the character doing its function under accurate cost prediction of resource. But prediction of resource is difficult in industry mechanism of the construction. If accurate cost prediction of resource is possible in the construction, it will be expected to reduce cost of procurement of resource substantially by applying successful resource planning model in the manufacture. On the basis of recent current, the purpose of study is to present procurement of resource system that period observance of construction and minimization of stock is possible by reflecting accurate lead-time to apply proactive thought to be able to cope with alteration of construction schedule efficiently in analyzing resource planning of the construction site.

Heterogeneous Resource Management for Adaptive Grid System (적응형 그리드 시스템을 위한 이질적인 자원 관리)

  • Eui-Nam Huh;Woong-Jae Lee;Jong-Sook Lee
    • Journal of the Korea Society for Simulation
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    • v.12 no.4
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    • pp.51-59
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    • 2003
  • Real-Time applications on Grid environment have several problems in terms of resource management addressed as follows; (1) dynamic resource allocation to provide QoS objectives, (2) heterogeneous resources that is different scale, or capacity in same unit, and (3) resource availability, and resource needs. This paper describes the techniques of resource manager (RM) handling above problems to support QoS of dynamic real-time applications on Grid. The contributions of this paper to solve problems are as follows: unification of dynamic resource requirements among heterogeneous hosts, control of resources in heterogeneous environments, and dynamic load balancing/sharing. Our heuristic allocation scheme works not only 257% better than random, 142% better than round robin, and 36.4% better than least load in QoS sensitivity, but also 38.6% better than random, 28.5% better than round robin, and 31.6% better than least load in QoS.

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A Study of Home Informatization and it′s Effect on the Family Resource Management - focused on the Internet Use- (가정정보화와 이로 인한 가정자원관리의 변화에 대한 연구 - 인터넷사용을 중심으로 -)

  • 이기영;이현아
    • Journal of Families and Better Life
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    • v.20 no.1
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    • pp.17-31
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    • 2002
  • The purpose of this study is to investigate the effects of home informatization on the family resource management. For this purpose we analyze the level of home informatization focused on the Internet use and it's effects on the family resource management through time management and financial management. Data were collected from 582 housewives who use the Internet at home. The results show that home informatization through the Internet use has changed family resource management totally. It contributes to improve planning and efficiency of resource management, but simultaneously it causes the imbalance of resource management. And the Internet use of housewives also affects time allocation and household expenditure. These changes depend on socio-demographics variables, home informatization related variables, and personal resource variables. The results show that the ability to manage time and finance have much more importance to improve the level of planning and efficiency and to decrease the level of imbalance in managerial subsystem. The results of this research suggest several implications for public policy.

Resource Management Strategies in Fog Computing Environment -A Comprehensive Review

  • Alsadie, Deafallah
    • International Journal of Computer Science & Network Security
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    • v.22 no.4
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    • pp.310-328
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    • 2022
  • Internet of things (IoT) has emerged as the most popular technique that facilitates enhancing humans' quality of life. However, most time sensitive IoT applications require quick response time. So, processing these IoT applications in cloud servers may not be effective. Therefore, fog computing has emerged as a promising solution that addresses the problem of managing large data bandwidth requirements of devices and quick response time. This technology has resulted in processing a large amount of data near the data source compared to the cloud. However, efficient management of computing resources involving balancing workload, allocating resources, provisioning resources, and scheduling tasks is one primary consideration for effective computing-based solutions, specifically for time-sensitive applications. This paper provides a comprehensive review of the source management strategies considering resource limitations, heterogeneity, unpredicted traffic in the fog computing environment. It presents recent developments in the resource management field of the fog computing environment. It also presents significant management issues such as resource allocation, resource provisioning, resource scheduling, task offloading, etc. Related studies are compared indifferent mentions to provide promising directions of future research by fellow researchers in the field.

Development of a Heuristic Algorithm Based on Simulated Annealing for Time-Resource Tradeoffs in Project Scheduling Problems (시간-자원 트레이드오프 프로젝트 스케줄링 문제 해결을 위한 시뮬레이티드 어닐링 기반 휴리스틱 알고리즘 개발)

  • Kim, Geon-A;Seo, Yoon-Ho
    • The Journal of Information Systems
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    • v.28 no.4
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    • pp.175-197
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    • 2019
  • Purpose This study develops a heuristic algorithm to solve the time-resource tradeoffs in project scheduling problems with a real basis. Design/methodology/approach Resource constrained project scheduling problem with time-resource tradeoff is well-known as one of the NP-hard problems. Previous researchers have proposed heuristic that minimize Makespan of project scheduling by deriving optimal combinations from finite combinations of time and resource. We studied to solve project scheduling problems by deriving optimal values from infinite combinations. Findings We developed heuristic algorithm named Push Algorithm that derives optimal combinations from infinite combinations of time and resources. Developed heuristic algorithm based on simulated annealing shows better improved results than genetic algorithm and further research suggestion was discussed as a project scheduling problem with multiple resources of real numbers.

A Real-time Resource Allocation Algorithm for Minimizing the Completion Time of Workflow (워크플로우 완료시간 최소화를 위한 실시간 자원할당 알고리즘)

  • Yoon, Sang-Hum;Shin, Yong-Seung
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.29 no.1
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    • pp.1-8
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    • 2006
  • This paper proposes a real-time resource allocation algorithm for minimizing the completion time of overall workflow process. The jobs in a workflow process are interrelated through the precedence graph including Sequence, AND, OR and Loop control structure. A resource should be allocated for the processing of each job, and the required processing time of the job can be varied by the resource allocation decision. Each resource has several inherent restrictions such as the functional, geographical, positional and other operational characteristics. The algorithm suggested in this paper selects an effective resource for each job by considering the precedence constraint and the resource characteristics such as processing time and the inherent restrictions. To investigate the performance of the proposed algorithm, several numerical tests are performed for four different workflow graphs including standard, parallel and two series-parallel structures. In the tests, the solutions by the proposed algorithm are compared with random and optimal solutions which are obtained by a random selection rule and a full enumeration method respectively.

Optimal Project Duration Estimation Through Enhanced Resource Leveling Technique (개선된 자원 평준화 기법을 활용한 적정 공기산정에 관한 연구)

  • Yoon Yung-Sang;Kim Kyung-Hwan;Kim Jae-Jun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2004.11a
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    • pp.575-578
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    • 2004
  • Since a construction project is a series of works that utilizes resources to accomplish the project goal for a given time period, efficient resource management is a prerequisite for the success of the project. Two major areas of resource management are resource constrained scheduling focusing on the limited resource availability and resource leveling focusing on smoothing resource usage pattern on the fixed project completion time. It is not available, however, to apply both techniques to a project at the same time. This paper proposes a model to enhance the minimum moment algorithm of resource leveling, aiming to find an efficient usage of resources and an appropriate project completion time. A survey is performed to evaluate the major five factors using the AHP.

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A Study on Family Resource Management Problems Caused by the Internet Use (인터넷 사용으로 인한 가정자원관리 문제에 관한 연구)

  • 이기영;김유경
    • Journal of Family Resource Management and Policy Review
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    • v.6 no.2
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    • pp.157-172
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    • 2002
  • The purpose of this study is to investigate the family resource management problems caused by the Internet use. The family resource management problems are composed of time management problem, money management problem and interpersonal resource management problem. And time management problem is perceived as most serious of the three. The perception of family resource management problem is influenced by socio-demographics variables and Internet related variables. Based on the findings, we suggest several implications for education and public policy.

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A study on the Family Resource Transfers from Adult Children to their Parents with Dementia (치매부모에 대한 성인자녀의 자원이전에 관한 연구)

  • Koh, Sun-Kang
    • Journal of Family Resource Management and Policy Review
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    • v.12 no.2
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    • pp.209-229
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    • 2008
  • The purpose of this study is to analyze the influence of parent-to-child financial transfers, providing household chores, and inheritance on financial transfers and time transfers from adult children to their elderly parents with dementia. Analyzing data from the sample of 343 adult children of parents with dementia, this study finds a strong positive effect of prior parent-to-child financial transfers on child-to-parent financial transfers under controlling parent characteristics, respondent characteristics and sibling's transfers to their parents. The effects of providing household chores and inheritance on time transfers are also positively significant. The results of this study point out the importance of reciprocity in resource transfers between adult children and their parents with dementia.

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