• Title/Summary/Keyword: integrating

Search Result 3,973, Processing Time 0.03 seconds

PID Controller Tuning for Integrating Processes with Time Delay (시간지연을 갖는 적분시스템용 PID 제어기의 동조)

  • Lee Yun-Hyung;Ahn Jong-Kap;Kim Min-Jung;So Myung-Ok;Jin Gang-Gyoo
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
    • /
    • 2006.06b
    • /
    • pp.325-330
    • /
    • 2006
  • Integrating processes are frequently encountered in process industries. Generally they are most commonly associated with level control problems. In this paper, tuning formulae of PID controllers for set-point tracking and load disturbance rejection are presented on integrating processes with time delay. In particular, the controller parameters are determined such that performance criteria(IAE, ISE and ITSE) are minimized. Optimal PID parameter sets are obtained by means of a real-coded genetic algorithm(RCGA) and then tuning rules are addressed using obtained PID parameter sets and another RCGA. The performances of the proposed tuning rules are tested on two processes.

  • PDF

A Study on Estimation by Depth Integrating Method of Sediment Discharge (수심적분법에 의한 유사량 추정연구)

  • 서승덕;김활곤;우효섭
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.38 no.1
    • /
    • pp.90-97
    • /
    • 1996
  • In Korea, total sediment discharge of a river has been estimated simply by using certain sediment transport formulas including, among others, Einstein's formula. Those formular, however, are known not to be reliable enough for the result calculated by them to be used directly to river planning and management. Therefore, the study used the Modified Einstein Procedure to the estimation of total sediment discharge, because this method is reliable estimated by measurement. Here, measurement of sediment discharge used depth integrating method. The major results obtained from the study for estimation by depth integrating method of sediment discharge in Naeseong stream are as follow; 1 The sedeiment characteristics of Naeseong stream are; The distribution of sediment grain size shows that silt and clay are 55% and sand is 45%. and the bed load sediment grain size is constituted that sand contained with the grain size from O.062mm to 2.0mm is 80% 2. The sediment rating formulas derived from the regression analysis between the sediment discharge and flow discharge are; Seogpo-Gyo : Qs=$0.017 \times 10^{-4} Q^{2.352}$, where discharge is l0cms $0.074 \times 10^{-4} Q^{2.066}$, where discharge is l0cms

  • PDF

Calculation of Generation Power Integrating Sihwa Tidal Power into Power Systems (시화조력발전 계통연계에 따른 시간대별 발전량 산정)

  • Kim, Kyu-Ho;Song, Kyung-Bin
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.21 no.1
    • /
    • pp.157-163
    • /
    • 2007
  • This paper presents a method to calculate generation power for integrating Sihwa tidal power into power systems. The sea levels of 1 minute interval using cubic interpolation based on the forecasted levels of high and low water offered from Nori(National Oceanographic Research Institute) are calculated. If the sea level is greater than the lake level and the difference between sea level and lake level at high tide is over the default value, it begins to calculate the tidal power. It is seen that tidal power can supply power to demand side stably and economically from assessment of effect for integrating tidal power into power systems.

A Study on the Characteristics and Problems of an Integrated KORMRC Bibliographic Formats (KORMARC 형식 통합서지용의 특성과 문제점 분석에 관한 연구)

  • Lee, Kyung-Ho;Kim, Jeong-Hyen
    • Journal of Korean Library and Information Science Society
    • /
    • v.37 no.4
    • /
    • pp.201-223
    • /
    • 2006
  • KORMARC formats have been developed in accordance with type of materials at different times. The format was firstly developed and soon after with formats for serials, audiovisual materials, archival and manuscript materials. Although all of the formats were developed according to the same principles, there were same inconsistencies among them. However, there are solved above problems as integrating KORMARC bibliographic formats. First of all, the result was better than we had expected both unified cataloging rules and standard of a descriptive form as accepted KCR4. This study is to roughly analyze integrating process, integrating contents, and problems of KORMARC format.

  • PDF

Exploring the Impact of a STEM Integration Teacher Professional Development Program on Secondary Science and Mathematics Teachers' Perceptions of Engineering and Their Attitude toward Engineering Integrated Teaching

  • Wang, Hui-Hui;Nam, Younkyeong
    • Journal of the Korean earth science society
    • /
    • v.36 no.5
    • /
    • pp.484-499
    • /
    • 2015
  • This study explores the impact of a STEM integration teacher professional development program focusing on teachers' perception of engineering and their attitudes toward integrating engineering into teaching. A total of sixty-eight teachers from ten schools participated in the program for five days. Data are collected from three main sources including (1) pre and post concept maps probing teachers' perceptions about the engineering discipline, (2) a pre and post survey measuring teachers' self-efficacy of teaching science/mathematics within the engineering context, and (3) engineering integrated science and (or) mathematics lesson plans and teaching reflections. This study utilizes both qualitative and quantitative research methods depending on the data we have collected. The results show that both science and math teachers thought that integrating engineering into teaching provided valuable outcomes, i.e., promoting students' learning about engineering and improving their interest in science or math through real-world problem solving exercises. Participants also felt more comfortable about integrating engineering in their teaching after the program. The results also imply that the teachers' understandings of engineering become more concrete after the program. This study also provides an overview of the challenges and advantages of teaching engineering in K-12 science and mathematics classrooms.

The Influences of Siblings and Emotional Intelligence on Social Competence : Conflict Solving Strategies as Mediators (사회적 유능성에 형제유무와 정서지능이 미치는 영향 : 갈등해결전략의 매개효과 검증)

  • Kim, Yun-Hee;Kang, Min-Ju
    • Korean Journal of Child Studies
    • /
    • v.31 no.3
    • /
    • pp.199-214
    • /
    • 2010
  • This study examined the effects of siblings, emotional intelligence (E.I.), and conflict solving strategies (integrating-compromising strategy/ dominating strategy) on children's social competence. The subjects were 421 6th graders (231 boys, 190 girls) in Seoul. The children filled out questionnaires on their siblings, E.I., and conflict solving strategies. Their teachers were asked to rate the children's social competence. Mediational analyses were conducted using structural equation modeling. Both integrating-compromising strategies and dominating strategies mediated the relationship between E.I. and social competence. Children with higher E.I. reported that they used more integrating-compromising strategies, which in turn was related to higher social competence. Those who scored low on E.I. reported that they used more dominating strategies, which in turn was related to lower social competence. Although the effects of siblings did not have any direct effects on social competence, it was found to be related to the type of conflict solving strategies most frequently used. Compared to the children with siblings, the children without siblings used more dominating strategies, which in turn contributed to lower social competence.

Expression of Schwanniomyces occidentalis $\alpha-Amylase$ Gene in Saccharomyces cerevisiae var. diastaticus

  • Park, Jeong-Nam;Shin, Dong-Jun;Kim, Hee-Ok;Kim, Dong-Ho;Lee, Hwang-Hee;Chun, Soon-Bai;Bai, Suk
    • Journal of Microbiology and Biotechnology
    • /
    • v.9 no.5
    • /
    • pp.668-671
    • /
    • 1999
  • The gene encoding Schwanniomyces occidentalis $\alpha-amylase$(AMY) was introduced into Saccharomyces cerevisiae var. diastaticus which secreted only glucoamylase, by using a linearized yeast integrating vector to develop stable strains with a capability of secreting $\alpha-amylase$and glucoamylase simultaneously. A dominant selectable marker, the geneticin(G418) resistance gene (Gt^r$), was cloned into a vector to screen wild-type diploid transformants harboring the AMY gene. The amylolytic activities of transformants were about 3-7 times higher than those of the recipient strains. When grown in nonselective media, the transformants with the linearized integrating vector containing the AMY gene exhibited almost all of the mitotic stability after 100 generations.

  • PDF

A Suggestion of Efficient Method for Integrating XML and Voice XML (XML과 Voice XML의 효율적인 통합 방안 제시)

  • 장민석;홍용택
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2001.05a
    • /
    • pp.260-264
    • /
    • 2001
  • In this paper we suggest a method for translating (or integrating) XML documents into Voice XML documents in order to provide voice communication service. In the forthcoming web environment, XML will certainly overwhelms HTML. At this situation, the method of accessing data through the more various types of terminal machines is required.'rho best way is to use Voice XML by which the data accessing method is able to change from Web to the wired or/and wireless terminal at low costs. Thus we suggest a method for integrating the XML-based system into the Voice XML-based one.

  • PDF

TA Study of Deployment Strategies and The Next Generation Convergence Networks Telecom Service Model (차세대 통합망의 텔레콤 서비스 모델 및 진화 방향에 대한 고찰)

  • 김동일
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.8 no.6
    • /
    • pp.1228-1233
    • /
    • 2004
  • Character of the technology that is going to lead the next generation convergence network which has been discussed recently can be represented by Integrating and Convergence. As Wireless Telecommunication and Broadband Transport Technology make rapid progress for several years, and those of two important technical advance, Integrating, Convergence will combine with the latest terminal technology. so it becomes a big issue of utmost importance. This paper, therefore, investigates the network deployment strategies and relating technology toward Broadband Convergence Network(BcN) and makes a survey of up-to-date technique based on Telecom Service businesses which have been required.

Perspectives on Clinical Informatics: Integrating Large-Scale Clinical, Genomic, and Health Information for Clinical Care

  • Choi, In Young;Kim, Tae-Min;Kim, Myung Shin;Mun, Seong K.;Chung, Yeun-Jun
    • Genomics & Informatics
    • /
    • v.11 no.4
    • /
    • pp.186-190
    • /
    • 2013
  • The advances in electronic medical records (EMRs) and bioinformatics (BI) represent two significant trends in healthcare. The widespread adoption of EMR systems and the completion of the Human Genome Project developed the technologies for data acquisition, analysis, and visualization in two different domains. The massive amount of data from both clinical and biology domains is expected to provide personalized, preventive, and predictive healthcare services in the near future. The integrated use of EMR and BI data needs to consider four key informatics areas: data modeling, analytics, standardization, and privacy. Bioclinical data warehouses integrating heterogeneous patient-related clinical or omics data should be considered. The representative standardization effort by the Clinical Bioinformatics Ontology (CBO) aims to provide uniquely identified concepts to include molecular pathology terminologies. Since individual genome data are easily used to predict current and future health status, different safeguards to ensure confidentiality should be considered. In this paper, we focused on the informatics aspects of integrating the EMR community and BI community by identifying opportunities, challenges, and approaches to provide the best possible care service for our patients and the population.