• Title/Summary/Keyword: resource share

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Exploiting Thread-Level Parallelism in Lockstep Execution by Partially Duplicating a Single Pipeline

  • Oh, Jaeg-Eun;Hwang, Seok-Joong;Nguyen, Huong Giang;Kim, A-Reum;Kim, Seon-Wook;Kim, Chul-Woo;Kim, Jong-Kook
    • ETRI Journal
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    • v.30 no.4
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    • pp.576-586
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    • 2008
  • In most parallel loops of embedded applications, every iteration executes the exact same sequence of instructions while manipulating different data. This fact motivates a new compiler-hardware orchestrated execution framework in which all parallel threads share one fetch unit and one decode unit but have their own execution, memory, and write-back units. This resource sharing enables parallel threads to execute in lockstep with minimal hardware extension and compiler support. Our proposed architecture, called multithreaded lockstep execution processor (MLEP), is a compromise between the single-instruction multiple-data (SIMD) and symmetric multithreading/chip multiprocessor (SMT/CMP) solutions. The proposed approach is more favorable than a typical SIMD execution in terms of degree of parallelism, range of applicability, and code generation, and can save more power and chip area than the SMT/CMP approach without significant performance degradation. For the architecture verification, we extend a commercial 32-bit embedded core AE32000C and synthesize it on Xilinx FPGA. Compared to the original architecture, our approach is 13.5% faster with a 2-way MLEP and 33.7% faster with a 4-way MLEP in EEMBC benchmarks which are automatically parallelized by the Intel compiler.

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A Construction of the N-BMS Focused on the Building Service Equipment (N-BMS : National Building Management System) (건물 군관리시스템 구축방안)

  • Lee, Tae-Won;Kim, Yong-Ki;Kang, Sung-Ju
    • Proceedings of the SAREK Conference
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    • 2007.11a
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    • pp.149-154
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    • 2007
  • Now, in Korea, the performances of the building service equipment relay on the individual superintendent's share for the assessment of performance, fault detection, deterioration diagnosis of the building service equipment. As the result, very different quality of the performance or the durability of equipment is being obtained with his skill and effort and it is also not easy to assess that quality. This finally lead to the waste of labor force and the operating cost due to the high-cost, low-efficiency system. How to construct the N-BMS was considered to save energy, resource and to conserve performance of building service equipment. The FEMIS, facility, energy/environmental management & information system, for building service offer management process integrated with BAS, FMS and EMS and so on.

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Building Local Digital Archives: The Case of "Gyeonggi-do Memory" (지역 디지털 아카이브 구축: '경기도메모리' 사례)

  • Shin, JeongA
    • Journal of Korean Society of Archives and Records Management
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    • v.20 no.3
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    • pp.161-166
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    • 2020
  • "Gyeonggi-do Memory," established and operated by Gyeonggi-do Cyber Library, is a local digital archive aiming to broaden the access to Gyeonggi-do's cultural resource records. Since 2014, the library has been expanding its digital information service, starting with the said archive. Through cooperation with various cultural institutions in the province, it builds the digital archive by collecting numerous records. In particular, the archive is expected to establish itself as a repository that stores records of production or dealing in Gyeonggi-do and a platform to share with researchers and citizens.

Implementation of a Performance Monitor using Object Oriented Concept (객체 지향 개념을 적용한 성능 모니터의 구현)

  • Kim, Yong-Soo;Lee, Keum-Suk
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.8
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    • pp.2038-2059
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    • 1997
  • The physical attributes of a computer, such as processor speed, size and access time of memory, and I/O bandwidth, are fixed when the computer is delivered to the user. Under these conditions, the performance of a multi-process system where multiple processes share various resources can be enhanced by monitoring and controlling the relationship between the user processes and the system resources. This paper applies object oriented concept to the performance management and suggests a standard for the management. Resource managers and user processes are defined as managed object and a performance manager is defined as a managing object. A protocol between the user processes and performance manager is designed and attributes and methods of the objects are also defined. Through the standardization, the user processes and the performance manager can be developed independently and the system's performance can also be collectively managed.

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A Thought on Social Captial Paradigm and Social-Emotional Goods (사회자본 패러다임과 사회·감성재화에 관한 소고)

  • Park, Seong-Kwae
    • Journal of Fisheries and Marine Sciences Education
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    • v.16 no.2
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    • pp.199-209
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    • 2004
  • The main purpose of this study is to explore a social capital paradigm which can be applied to many forms of social capital and intangible goods. The social capital paradigm introduces a new form of capital. This new form of capital produces a flow of socio-emotional goods that have value. Moreover, these socio-emotional goods can attach themselves to the objects used to convey them and change their value and meaning. This change in value and meaning is defined as attachment values. Exchanges of socio-emotional goods occur in networks where social capital resides. Formal and informal institutions provide order and meaning to exchanges of tangible and intangible goods. Social capital is a powerful resource that makes our choices interdependent. The social capital paradigm does not alter or contradict the basic economic theories of exchange. While the social capital paradigm accepts that selfish preferences motive many actions, it adds that sympathy and the desire to consume socio-emotional goods are powerful motivators. In case of marine affairs, ocean and fishing villages and their culture have been not only a fundamental basis of fisheries development but they also have made a great deal of contribution to forming social capital. In spite of this fact, the main reason that the problems of fisheries fishing villages fishermen in our society are kept at a distance is because they have been loosing their capability of forming social capital and producing socio-emotional goods, in addition to lowered relative economic share.

Determinants of the Competitiveness of Women-Owned Small- and Medium-Sized Enterprises: An Empirical Study from Vietnam

  • DAO, Tien Ngoc;LE, Ha Thi Thu;CHU, Phuong Thi Mai;PHAM, Ngan Hoang;LUONG, Trang Thi Dai;TRAN, Dung Tri
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.12
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    • pp.345-352
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    • 2021
  • Guided by a resource-based theory, this study is the first one that takes a quantitative approach to identify determinants of competitiveness of women-owned small and medium enterprises (SMEs) in Vietnam. The study employs time series data of Vietnamese SMEs extracted from the Vietnam Small and Medium Enterprises Survey conducted biennially from 2005 to 2015 in ten Vietnamese provinces. Firm competitiveness hereby is indicated by revenue, market share, profitability, and export volume. The research reveals a number of determining factors, of all, research and development, labor skills, business environment, technology investment are the most important factors, followed by capital and headcount. It is indicated that the determining factors have different influences on competitiveness obtained by different measurements. Therefore, it is based on specific targets and situations to make wise business decisions. The authors also make comparisons among groups of women-owned enterprises divided by their firm age, location, ownership, export, age, and educational background of business owners. The findings serve as critical empirical evidence and provide policy recommendations for improving the competitiveness of women-owned SMEs in Vietnam. The recommendations range from technology support, education and professional support for female entrepreneurs, access to capital and human resources to business environment improvement.

The Data Sharing Economy and Open Governance of Big Data as Public Good

  • LEE, Jung Wan
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.11
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    • pp.87-96
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    • 2021
  • Data-driven markets depend on access to data as a resource for products and services. Since the quality of information that can be drawn from data increases with the available amount and quality of the data, businesses involved in the data economy have a great interest in accessing data from other market players and sharing data with other stakeholders. Despite the growing need for access to data and evidence of the economic and social benefits, data access and sharing remains below its potential. Individuals, businesses, and governments often face barriers to data access, which may be compounded by the reluctance to share, including within and across sectors. To address these challenges, this paper focuses on finding possible solutions for a better data-sharing economy. This paper 1) Discusses opportunities and challenges of open data and the data-sharing economy, limitations of private sector data, and issues with open government data. 2) Introduces open government data initiatives and open governance networks initiatives. 3) Suggests possible solutions, including the governance and management, the legal and policy frameworks, and the technical standards for open data with proposing an open data governance model for the data-sharing economy.

A Study on Dynamic Role-based Service Allocation for Service Oriented Architecture System (서비스 지향 아키텍처 시스템을 위한 동적 역할 기반 서비스 할당에 관한 연구)

  • Park, Yong B.;Kwon, Ye Jin
    • Journal of the Semiconductor & Display Technology
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    • v.17 no.1
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    • pp.12-20
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    • 2018
  • Recently, web-based service software has been used as to combine various information or to share information according to the needs of users and the convergence of specialized fields and individual dependent systems. According to the necessity of the user, the proper service environment and the selective service environment according to the purpose and the needs of the user have been studied in a variety of specialized and combined professional research fields and industries. Software based on cloud systems and web services is being used as a tool for appropriate group and user groups and roles. A service system combined dynamically needs a module to manage a user through internal logic and grant a service access authentication. Therefore, it has been considered various approaches that a user who accesses the system is given a service access authority for a certain period of time. Also, when the deadline is over, the authority that you are given to access system will go through the process of expire the right. In this paper, we define the roles of users who access web services, manage user rights according to each role, and provide appropriate service resources to users according to their rights and session information. We analyzed the procedure of constructing the algorithm for the service according to the procedure of each user accessing the web service, granting the service resource and constructing a new role.

The Integration of Adaptive Elements into High-Rise Structures

  • Weidner, Stefanie;Steffen, Simon;Sobek, Werner
    • International Journal of High-Rise Buildings
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    • v.8 no.2
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    • pp.95-100
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    • 2019
  • Whilst most research focuses on the reduction of operative energy use in buildings, the aspect of which (and how many) materials are used is often neglected and poorly explored. However, considering the continuous growth of the global population and the limited availability of resources, it is clear that focusing on operative energy alone is too short-sighted. The tasks lying ahead for architects and engineers cannot be accomplished with conventional methods of construction. With a share of 50-60% of global resource consumption, the building industry has a decisive impact on our environment. If business as usual continues, resources will be significantly depleted in a matter of decades. Therefore, researchers of the University of Stuttgart are investigating the concept of adaptivity as a promising method for saving resources in the built environment. The term adaptivity in the context of building structures was first introduced by Werner Sobek. It describes a method where sensors, actuators and control units are implemented in systems or facades in order to oppose physical impacts in an ideal way. The applicability of this method will be verified on an experimental high-rise building at the University campus in Stuttgart. Thus, this paper describes this innovative research project and depicts the concept of adaptivity in high-rise structures. Furthermore, it gives an overview of potential actuation concepts and the interdisciplinary challenges behind them.

Genetic variation of COI gene of the Korean medicinal centipede Scolopendra mutilans Koch, 1878 (Scolopendromorpha: Scolopendridae)

  • HAN, Taeman;LEE, Young Bo;KIM, Seung-Hyun;YOON, Hyung Joo;PARK, In Gyun;PARK, Haechul
    • Entomological Research
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    • v.48 no.6
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    • pp.559-566
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    • 2018
  • In Korea, the centipede called "Wang-ji-ne" or "O-gong" is used as an important medicinal resource. This centipede has been known as Scolopendra subspinipes mutilans Koch 1878. Recent studies have assessed its taxonomic treatment in several geographical populations from China, Japan and Taiwan, but not Korea. We therefore attempted to assess exact species status for the Korean population of this subspecies using both morphological and DNA barcode methods. The result inferred from DNA barcoding showed that the Korean population is S. mutilans explicitly separated from S. subspinipes. Within S. mutilans, the Korean population is morphologically identical and genetically closer to the Chinese population rather than island populations of Japan and Taiwan. Particularly, the mainland populations from Korea and China share six haplotypes from 17 despite being far apart geographically.