• 제목/요약/키워드: measurement framework

검색결과 520건 처리시간 0.021초

RF and Microwave Power Standards from 10 MHz to 40 GHz over Decades

  • Kang, Tae-Weon;Kwon, Jae-Yong;Park, Jeong-Il;Kang, No-Weon
    • Journal of electromagnetic engineering and science
    • /
    • 제18권2호
    • /
    • pp.88-93
    • /
    • 2018
  • Radio frequency (RF) and microwave power is one of the key quantities in the framework of electromagnetic measurement standards. Therefore, the stability of the power standard is essential to users' reliable measurements in various areas. Coaxial and waveguide thermistor mounts are used as transfer standards of RF and microwave power. Over decades, the effective efficiencies of thermistor mounts have been measured using coaxial and waveguide microcalorimeters in the frequency range of 10 MHz-40 GHz. The measurement uncertainty of the effective efficiency is evaluated. Results show that the power standards have been well maintained within the measurement uncertainty.

창조경영 수준 진단 시스템 개발에 관한 연구 (A Study on the Development of Creative Management Measurement Systems)

  • 김상수;김영천
    • 지식경영연구
    • /
    • 제14권2호
    • /
    • pp.1-24
    • /
    • 2013
  • With rapid changes in technology and global competition, the success of many companies has become progressively more dependent on their ability to bring unique products, services, and business models to market. Therefore, many companies have tried to use creativity to all over the management activities and the concept of creative management is emerging. Creative management is a new but rapidly growing research area. But there have been few studies on this topic. In this paper, we developed the framework for measuring Creative Management levels of a company. The contribution of this paper is the following. First, we suggested a systematic measurement tool for creative management level focused on the management capability, business process and outcomes. Secondly, the creative measurement system developed in this paper can support companies to implement creative management as a guideline for adopting creative management.

  • PDF

Distribution Channel Performance Measurement: Valid Measures From Customers' Perspective

  • Kim, Sang-Youl
    • 한국항해항만학회지
    • /
    • 제32권2호
    • /
    • pp.141-148
    • /
    • 2008
  • This paper is structured into three main parts and a conclusion. The main section provide definitions of efficiency, effectiveness and performance in terms of the distribution channel, followed by a review of related performance measurement, before discussing difficulties of measurement. According to the theoretical approach, it appears that key theroretical issues are centered around customer service, logistics excellence, time compression, the use of IT, and a move towards integrated logistics. The empirical approach shows that in the past, various financial performance indicators were regarded as relevant management information. However, today, management needs additional performance indicators. Therefore, external assessments of effectiveness must be performed to measure customers' satisfaction with the physical flow of product through the distribution channel network. So, what is needed is to take previous normative and explorative research and progress through a framework by developing valid measures of distribution channel's effectiveness and efficiency, and identifying research methodologies suited to the data collection requirements.

이산 제조 공정에서의 수율 향상을 위한 분석 프레임워크의 개발에 관한 연구 (A Study on analysis framework development for yield improvement in discrete manufacturing)

  • 송치욱;노금종;박동진
    • 한국정보시스템학회지:정보시스템연구
    • /
    • 제26권2호
    • /
    • pp.105-121
    • /
    • 2017
  • Purpose It is a major goal to improve the product yields during production operations in the manufacturing industry. Therefore, factory is trying to keep the good quality materials and proper production resources, also find the proper condition of facilities and manufacturing environment for yields improvement. Design/methodology/approach We propose the hybrid framework to analyze to dataset extracted from MES. Those data is about the alarm information generated from equipment, both measurement and equipment process value from production and cycle/pitch time measured from production data these covered products during production. We adapt a data warehousing techniques for organizing dataset, a logistic regression for finding out the significant factors, and a association analysis for drawing the rules which affect the product yields. And then we validate the framework by applying the real data generated from the discrete process in secondary cell battery manufacturing. Findings This paper deals with challenges to apply the full potential of modeling and simulation within CPPS(Cyber-Physical Production System) and Smart Factory implementation. The framework is being applied in one of the most advanced and complex industrial sectors like semiconductor, display, and automotive industry.

패션브랜드자산의 형성과정에 관한 연구: 캐주얼 브랜드를 중심으로 (The Conceptual Framework of Building Fashion Brand Equity; Focused on casual wear brand)

  • 김혜정;임숙자
    • 한국의류학회지
    • /
    • 제28권2호
    • /
    • pp.252-261
    • /
    • 2004
  • In this complex marketing world, marketers find themselves having to grapple with difficult issues about branding and their brand management. In many cases, a deeper understanding of how consumers feel, think, and act could provide valuable guidance to address these brand-management challenges. The objective of this study is to conceptualize and test the framework of building fashion brand equity, utilizing Keller's CBBE Model as a theoretical framework and Kim and Lim's (2002) scale as a measurement model of fashion brand equity. We conducted a survey toward 696 university students using Kim and Lim's fashion brand equity scale. To test the hypothesized building paths of fashion brand equity, statistical analyses were performed with AMOS 4.1 program using confirmatory factor analysis and structural equation model. The results of this study were as follows. First, fashion brand equity was defined in terms of six components; customer-brand resonance, customer feeling, customer judgment, brand imagery. brand performance and brand awareness. Fashion brand equity was multi-dimensional brand attitude, which could be measured by 16 items. Consequently, Kim and Lim's scale acquired a statistical validity. Second, the proposed conceptual framework of this study was partially significant. We can provide an effectiveness of Keller's CBBE model to conceptualize the building process of fashion brand equity. Third, it was different between two brands to build fashion brand equity.

시계열 프레임워크를 이용한 효율적인 클라우드서비스 품질·성능 관리 방법 (An Efficient Cloud Service Quality Performance Management Method Using a Time Series Framework)

  • 정현철;서광규
    • 반도체디스플레이기술학회지
    • /
    • 제20권2호
    • /
    • pp.121-125
    • /
    • 2021
  • Cloud service has the characteristic that it must be always available and that it must be able to respond immediately to user requests. This study suggests a method for constructing a proactive and autonomous quality and performance management system to meet these characteristics of cloud services. To this end, we identify quantitative measurement factors for cloud service quality and performance management, define a structure for applying a time series framework to cloud service application quality and performance management for proactive management, and then use big data and artificial intelligence for autonomous management. The flow of data processing and the configuration and flow of big data and artificial intelligence platforms were defined to combine intelligent technologies. In addition, the effectiveness was confirmed by applying it to the cloud service quality and performance management system through a case study. Using the methodology presented in this study, it is possible to improve the service management system that has been managed artificially and retrospectively through various convergence. However, since it requires the collection, processing, and processing of various types of data, it also has limitations in that data standardization must be prioritized in each technology and industry.

전략적 관점에서 본 전자상거래 비즈니스 모델의 측정도구 개발에 관한 연구 (A Study on the Development of Measurement Instruments for the Business Model of Electronic Commerce in the Strategic Perspective)

  • 송영일;전호일
    • 한국정보시스템학회지:정보시스템연구
    • /
    • 제15권3호
    • /
    • pp.1-34
    • /
    • 2006
  • The purpose of this study Is to develop empirically validated instrument for business model. The previous researches related to business model were almost taxonomies. And the focus of those researches were the classification by the degree of integration and innovation the origin, and the main source of revenue etc. In the emerging fields such as IT, e-commerce, and e-business, it tends to overlook methodological issue in its substantive relationships and also measurement. Business model is taken an interest in recent years. However, as the non-establishment of construct on business model has made no empirical study, this, study tries to develop an empirical validated instrument that identifies the dimensions of business model by uncovering meaningful group or categories. For this, the outlined domain of business model are defined as an organizational level that competes in the industry through the literature reviews. And the traits such as process integration, value chain reconstruction, strategic alliance with another business model, specialty in a certain wet sustainability of essential capabilities, differentiation, convertibility, customer orientation, revenue stream, newness, innovation leadership: and vision sharing are identified in those respective domains, and then the traits are classified into five dimensions such as interlinkageableness, valueness, functionalness, preemptiveness, and goalness by their characteristics. Generating items are continued on the basis of operationalization. Confirmatory factor analysis is performed in order to develop validated instrument with LISREL measurement model. Finally the instrument is developed through the previous procedure. The implication of this study is the first empirical effort to assess business model. The resulting instrument can be used with dependent variables in the future study related to business model. And the establishment of construct of business model is able to make a basis to rise an additional issue consequently. In the practical side, the instrument also can be employed as an assessment framework that can assess whether the expected value success or not. The instrument with the measurement can be used on competitor's business model, In. When an investment into a i-m with a specific business model, these instrument developed can be presented as the basic framework of assessment.

  • PDF

삶의 질 제고를 위한 측정기술표준화 발전 방안 (A basic plan for the development of standardized measurement technology to improve quality of life)

  • 남상성
    • 한국기술혁신학회:학술대회논문집
    • /
    • 한국기술혁신학회 2015년도 추계학술대회 논문집
    • /
    • pp.580-593
    • /
    • 2015
  • 현대사회의 중요한 화두 중 하나로 삶의 질을 강조한다. 이러한 삶의 질에 대한 관심은 그것이 국가경쟁력과 결부되면서 최근 들어 더욱 주목받기 시작했다. 삶의 질이 이렇게 중요한 가치임에도 불구하고 우리나라의 삶의 질은 만족할만한 수준이 아니다. 따라서 본 연구는 우리나라의 측정표준기술을 삶의 질의 관점에서 분석한다. 먼저 여러 연구 자료를 토대로 삶의 질을 구성 개념들을 파악하여 분석틀을 도출한다. 이후, 이 분석틀에 준하여 우리나라의 측정표준기술의 분포를 분석한다. 분석의 결과, 현재의 측정기술표준에는 삶의 질과 무관한 기술이 다수 존재하고 관련 있는 기술인 경우에도 경제적 삶의 질에 편중된 모습을 보이는 것으로 나타났다. 이는 측정기술표준에 있어서 삶의 질이라는 가치가 고려되지 않고 있음을 얘기하는 것으로 향후 이에 대한 개선이 반드시 필요할 것이다.

  • PDF

Evaluation of marginal and internal gaps in single and three-unit metal frameworks made by micro-stereolithography

  • Kim, Dong-Yeon;Lee, Ha-Na;Kim, Ji-Hwan;Kim, Hae-Young;Kim, Woong-Chul
    • The Journal of Advanced Prosthodontics
    • /
    • 제9권4호
    • /
    • pp.239-243
    • /
    • 2017
  • PURPOSE. The purpose of this study is to compare single and three-unit metal frameworks that are produced by micro-stereolithography. MATERIALS AND METHODS. Silicone impressions of a selected molar and a premolar were used to make master abutments that were scanned into a stereolithography file. The file was processed with computer aided design software to create single and three-unit designs from which resin frameworks were created using micro-stereolithography. These resin frameworks were subjected to investment, burnout, and casting to fabricate single and three-unit metal ones that were measured under a digital microscope by using the silicone replica technique. The measurements were verified by means of the Mann-Whitney U test (${\alpha}=.05$). RESULTS. The marginal gap was $101.9{\pm}53.4{\mu}m$ for SM group and $104.3{\pm}62.9{\mu}m$ for TUM group. The measurement of non-pontics in a single metal framework was $93.6{\pm}43.9{\mu}m$, and that of non-pontics in a three-unit metal framework was $64.9{\pm}46.5{\mu}m$. The dimension of pontics in a single metal framework was $110.2{\pm}61.4{\mu}m$, and that of pontics in a three-unit metal framework was $143.7{\pm}51.8{\mu}m$. CONCLUSION. The marginal gap was smaller for the single metal framework than for the three-unit one, which requires further improvement before it can be used for clinical purposes.

보안 위험성향 측정을 위한 프레임워크 개발에 관한 연구 (A Study on Developing Framework for Measuring of Security Risk Appetite)

  • 김기삼;박진상;김정덕
    • 디지털융복합연구
    • /
    • 제17권1호
    • /
    • pp.141-148
    • /
    • 2019
  • 디지털 기술의 발전으로 지능화 및 융합화가 가속화됨에 따라, 비즈니스 모델 및 인프라, 기술 등 여러 측면에서 기존 방식을 초월한 변화가 요구되고 있다. 변화된 비즈니스 환경에서는 다양한 보안 위험이 점증하고 있으며, 보안 위험관리의 중요성이 더욱 커지고 있다. 기존의 정보자산 기반의 위험관리에서 벗어나 비즈니스 중심의 위험관리가 대두되고 있는 시점에서 이를 위해서는 비즈니스 목표 달성을 위한 위험성향(Risk Appetite)을 파악하는 것이 필수적이며, 이는 추후 프로세스에서 발생하는 제반 의사결정 과정에 있어 판단 기준을 제공한다. 따라서 본 논문에서는 기존 위험성향 선행연구 분석 및 보호동기이론을 분석하여, 보안 위험성향 수준을 파악할 수 있는 프레임워크를 개발하였다. 또한 개발된 위험성향 프레임워크의 실무적 타당성을 검토하기 위해, 보안 위험관리 실무 전문가들로 구성된 자문위원회를 통해 적용가능성과 중요성을 검토하였다. 검토 결과, 재무, 운영, 기술, 평판, 컴플라이언스, 문화 6개의 보안 위험성향 고려 위험분야와 인지된 심각성, 인지된 취약성, 자기효능감, 반응효능감 4개의 요인이 보안 위험성향 측정을 위한 프레임워크 구성요소로서 타당한 것으로 검토되었다.