• 제목/요약/키워드: rand

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Control system with neural networks for product crystal size of sodium chloride

  • Shinto, Toshiharu;Ishimaru, Naoyuki
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1994년도 Proceedings of the Korea Automatic Control Conference, 9th (KACC) ; Taejeon, Korea; 17-20 Oct. 1994
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    • pp.725-730
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    • 1994
  • A sodium chloride crystallizer shows oscillatory and nonlinear characteristics under its nucleating and growing process. Because these characteristics vary with operational condition, we can't control the product crystal size exactly with a PID controller or a sequence controller. Then, we make a model with threefold neural networks for the laboratory equipment that is a jet mixing crystallizer. We try to control the product crystal size with its neuro-model, and we reach the conclusion that our neuro-model is applicable to the practical crystallizer.

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Report - 표준특허&프랜드 - 표준특허와 프랜드?!

  • 박지용
    • 발명특허
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    • 제36권11호
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    • pp.24-28
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    • 2011
  • 최근 삼성전자와 애플에서 갤럭시폰, 갤럭시탭 등의 갤럭시 제품군과 아이폰, 아이패드 등 애플 제품군을 두고 세계 곳곳에서 치열한 특허전쟁이 벌어지고 있다. 여태까지의 소송에서는 애플이 적극적으로 삼성을 공격하는 입장이었는데 최근에는 삼성에서 애플에 적극적인 공세를 취하는 모습을 보이고 있다. 이러한 과정에서 삼성이 네덜란드의 헤이그 법원에서 삼성의 표준특허를 이유로 애플의 아이폰 판매금지가처분 신청을 신청한 사안에서, 헤이그 법원은 애플이 주장한 F/RAND 논리를 받아들여 삼성의 판매금지가처분 신청을 기각하였다. 그렇다면, 최근 특허업계에서 이슈가 되고 있는 표준특허란 무엇이고, F/RAND란 무엇일까? 먼저 표준특허에 대해서 간략히 살펴보고 삼성과 애플사례를 토대로 F/RAND에 대해서 살펴보도록 하겠다.

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RAND 방법으로 합의한 임상진료지침의 정의와 질 평가 기준 (Consensus on definition and quality standard of clinical practice guideline using RAND method)

  • 지선미;김수영;신승수;허대석;김남순
    • 보건행정학회지
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    • 제20권2호
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    • pp.1-16
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    • 2010
  • Background : Clinical practice guidelines are an increasingly familiar part of clinical practice. Moreover, rigorously developed evidence based guidelines has been widely used. However, in Korea, some of published documents as clinical practice guidelines have shown considerable disparity in structure, contents and quality. This is mainly because there is no consensus on the definition and quality standard of clinical practice guidelines. The purpose of this study was to draw consensus on the definition and the quality standard about clinical practice guidelines. Method : We developed a questionnaire about the definition of clinical practice guidelines with inclusion criteria(23 items) and the quality standard(30 items). We selected 9 experts who had prior experience in developing and implementing guidelines. Rating methods for appropriateness of items were adopted from the RAND method. Consensus was drawn in three rounds. Results : Of the 47 items agreed, 40 items were determined to be appropriate. Clinical practice guidelines were defined as "scientifically and systematically developed statements to assist practitioners and patients on making decisions about appropriate health care for specific clinical circumstances." Narrative reviews, systematic reviews or health technology assessment without recommendations, translation of foreign guidelines, guidelines for patients only and training manuals were not considered as clinical practice guidelines. For the quality standard of clinical practice guidelines, 27 items were deemed necessary. Conclusions : The consensus on the definition with inclusion criteria and the quality standard of clinical practice guidelines carries an important meaning as the first attempt to draw a general agreement in our society. The unique achievement of the consensus reflects the current status of clinical practice guidelines that there has been a high tendency to adapt foreign guidelines. We hope efforts of this kind will continue to bring improvement in clinical practice guidelines.

RAND/UCLA Appropriateness Method를 이용한 요양시설의 포괄적 약물관리 프로그램의 대상자 기준 개발 (Development of Eligibility Criteria for Comprehensive Medication Management Programs in Long-term Care Facilities Using RAND/UCLA Appropriateness Method)

  • 장수현;강신우;아영미;이주연;김정하;장선미
    • 한국임상약학회지
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    • 제32권3호
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    • pp.260-269
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    • 2022
  • Background: Comprehensive medication management is essential to achieve safe and optimal drug use for the elderly in long-term care facilities (LTCF). This study aimed to develop eligibility criteria for "Comprehensive medication management program in LTCF" using the RAND/UCLA Appropriateness Method (RAM). Furthermore, we attempted to estimate the number of beneficiaries who met the criteria by analyzing the National Health Insurance claims data. Methods: Twelve criteria were selected initially. We composed a panel of 14 experts with expertise in long-term care. We conducted two survey rounds to reach a consensus. Rating for appropriateness and decision regarding agreement were applied per RAM. We analyzed the National Health Insurance data to estimate the number of LTCF residents who met each eligibility criterion. Results: Of the 11 items agreed upon, ten items were determined to be appropriate. In 2018, 83.6% of 165,994 residents of LTCF met one or more eligibility criteria. The largest number of subjects met the "New residents of LTCF" criterion, followed by "Take high-alert drugs" and "Chronic excessive polypharmacy." Since the items evaluated as most appropriate by the expert panel and those with a large number of subjects were similar, we confirmed the external validity of our criteria. Conclusion: It is worth noting that this is the first attempt to establish the eligibility criteria for medication management in LTCF. Further preliminary research is needed to identify the selected subjects' drug-related problems and revise the criteria according to the results.

EVALUATION FOR THE CONVULSIVE LIABILITY OF VARIOUS QUINOLONE DERIVATIVES IN MICE

  • Park, Kyung-Eob;Lim, Dong-Moon;Huh, Min-Do
    • Toxicological Research
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    • 제8권1호
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    • pp.63-70
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    • 1992
  • The present study was performed to evaluate whether the application of Fenbufen is reasonable for predicting the convulsive liability of the quinolone derivatives and to examine whether pentylenetetrazole (PTZ) can be used as a screening tool for their Central Nervous System (CNS) toxic pontential. The convulsive activity of the quinolones was markedly potentiated by the pretreatment of Fenbufen. In combination with Fenbufen, enoxacin (ENX), norfloxacin (XFLX), and ciprofloxacin (CPFX) provoked convlusions and subsequent death at the intravenous doses of 0.5mg/kg, 10mg/kg, and 40mg/kg, respectively, whereas ofloxacin (OFLX) and pefloxacin (PFLX) did not induce convulsions and death even at a relatively high dose of 100mg/kg iv.

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Recovery Levels of Clustering Algorithms Using Different Similarity Measures for Functional Data

  • Chae, Seong San;Kim, Chansoo;Warde, William D.
    • Communications for Statistical Applications and Methods
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    • 제11권2호
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    • pp.369-380
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    • 2004
  • Clustering algorithms with different similarity measures are commonly used to find an optimal clustering or close to original clustering. The recovery level of using Euclidean distance and distances transformed from correlation coefficients is evaluated and compared using Rand's (1971) C statistic. The C values present how the resultant clustering is close to the original clustering. In simulation study, the recovery level is improved by applying the correlation coefficients between objects. Using the data set from Spellman et al. (1998), the recovery levels with different similarity measures are also presented. In general, the recovery level of true clusters was increased by using the correlation coefficients.