• Title/Summary/Keyword: Screening Process

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A Idea Development Method for Process Innovation (경영혁신을 위한 과제 도출 방안)

  • Kim, Seong-Su
    • 한국디지털정책학회:학술대회논문집
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    • 2006.06a
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    • pp.289-297
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    • 2006
  • Business operates under the fast pace of large-scale changes. These changes occur in environments including competitors, markets and consumers. To survive under these changes, process innovation is becoming the eminent issue faced by executives. Process innovation is to generate, select, and implement new ideas adopting changes in organizational structure, management pattern, human resource management systems and so on. Examples include restructuring, outsourcing, benchmarking, total quality management, and business process reengineering. This study suggests how to develop process innovation ideas. Related screening and implementation techniques are also presented.

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Hazard Evaluation of Gas Processes Using a Multi-distinction Equipment Screening Algorithm (다중판별 장치 스크리닝 기법을 이용한 가스공정의 위험성 평가)

  • Yoon En Sup;Park Jeong Su;Ahn Sung Joon;Han Kyounghoon;Yoon Jong Phil;Kim Ku Hwoi;Shin Dongil
    • Journal of the Korean Institute of Gas
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    • v.7 no.1 s.18
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    • pp.1-9
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    • 2003
  • A Multi-distinction Equipment Screening Algorithm (MESA) is proposed. It selectively integrates Dow's F&EI as its process hazard index technique and ESA (Equipment Screening Algorithm) as qualitative hazard classification technique, and retrieves a detailed list of hazardous equipments with the total hazard indices of those equipments. The inherent expert system, which includes the accident scenarios of the equipments and processes and experts' views of them, narrows further down the list of hazardous equipments and recommends only the most notable candidates. Through the case study of distinguishing the hazardous ranking of the equipments of the LPG underground storage process, using the expert system or not, the applicability of MESA has been validated. Taking the characteristics of the process equipments with hazardous ranking in the point of process intrinsic safety, this proposed algorithm would contribute to providing engineers or managers with information on constructing safely devices and mitigation devices and on scheduling emergency response planning.

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An Evaluation of Thermal Stability of Raw Materials in the Vinyl Acetate Polymerization Process (비닐아세테이트 중합공정에서 원료물질의 열적 안정성 평가)

  • Lee, Keun-Won;Han, In-Soo;Lee, Jung-Suk
    • Journal of the Korean Society of Safety
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    • v.25 no.3
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    • pp.61-65
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    • 2010
  • Most of the chemical reactions performed in the chemical industry are exothermic, meaning that thermal energy is released during the reaction. It is also important to understand the thermal hazards such as thermal stabilities and runaway reactions, which are governed by thermodynamics and reaction kinetics of the mixed materials. The paper was described the evaluation of thermal behavior caused by an exothermic batch process in manufacture of the vinyl acetate resin. The aim of the study was to evaluate the thermal stabilities of raw materials with operating conditions such as a reaction inhibitor, heating rate, reaction atmosphere and the mount of methanol charged in the vinyl acetate polymerization process. The experiments were performed in the differential scanning calorimeter(DSC), C 80 calorimeter, and thermal screening unit($TS^u$). It was suggested that we should provide the thermal characteristics for raw materials to present safe precautions with operating conditions in the vinyl acetate polymerization process.

Screening and Clustering for Time-course Yeast Microarray Gene Expression Data using Gaussian Process Regression (효모 마이크로어레이 유전자 발현데이터에 대한 가우시안 과정 회귀를 이용한 유전자 선별 및 군집화)

  • Kim, Jaehee;Kim, Taehoun
    • The Korean Journal of Applied Statistics
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    • v.26 no.3
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    • pp.389-399
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    • 2013
  • This article introduces Gaussian process regression and shows its application with time-course microarray gene expression data. Gene screening for yeast cell cycle microarray expression data is accomplished with a ratio of log marginal likelihood that uses Gaussian process regression with a squared exponential covariance kernel function. Gaussian process regression fitting with each gene is done and shown with the nine top ranking genes. With the screened data the Gaussian model-based clustering is done and its silhouette values are calculated for cluster validity.

An Evaluation of Thermal Stability on Esterification Process in Manufacture of Concrete Mixture Agents (시멘트 혼화제 제조시 에스테르화공정의 열 안정성 평가)

  • Lee, Keun-Won;Lee, Jung-Suk;Choi, Yi-Rae;Han, In-Soo
    • Journal of the Korean Society of Safety
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    • v.24 no.4
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    • pp.40-46
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    • 2009
  • The early identification of thermal hazards associated with a process such as the heats of reaction, exothermic decompositions, and the understanding of thermodynamics before any large scale operations are undertaken. The evaluation of reaction factors and thermal behavior on esterification process in manufacture of concrete mixture agents are described in the present paper. The experiments were performed in the differential scanning calorimetry(DSC), C 80 calorimeter, and thermal screening unit($TS^u$). The aim of the study was to evaluate the thermal stability of single material and mixture in esterification process. We provided the thermal data of chemical materials to present safe operating conditions through this study.

The Use of Artificial Intelligence in Screening and Diagnosis of Autism Spectrum Disorder: A Literature Review

  • Song, Da-Yea;Kim, So Yoon;Bong, Guiyoung;Kim, Jong Myeong;Yoo, Hee Jeong
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.30 no.4
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    • pp.145-152
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    • 2019
  • Objectives: The detection of autism spectrum disorder (ASD) is based on behavioral observations. To build a more objective datadriven method for screening and diagnosing ASD, many studies have attempted to incorporate artificial intelligence (AI) technologies. Therefore, the purpose of this literature review is to summarize the studies that used AI in the assessment process and examine whether other behavioral data could potentially be used to distinguish ASD characteristics. Methods: Based on our search and exclusion criteria, we reviewed 13 studies. Results: To improve the accuracy of outcomes, AI algorithms have been used to identify items in assessment instruments that are most predictive of ASD. Creating a smaller subset and therefore reducing the lengthy evaluation process, studies have tested the efficiency of identifying individuals with ASD from those without. Other studies have examined the feasibility of using other behavioral observational features as potential supportive data. Conclusion: While previous studies have shown high accuracy, sensitivity, and specificity in classifying ASD and non-ASD individuals, there remain many challenges regarding feasibility in the real-world that need to be resolved before AI methods can be fully integrated into the healthcare system as clinical decision support systems.

Rapid Analysis of Metabolic Stability and Structure of Metabolites in New Drug Development

  • Kim, Dong-Hyun
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.86-87
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    • 2002
  • Recent technological innovations in the drug discovery process such as combinatorial synthesis and high throughput screening have led to the identification of an increasingly large number of compounds at the hits-to-leads stage. Therefore, rapid and precise pharmacokinetic/metabolic screening is essential to enhance the tractability of selected leads and to minimize the risk of failure in the later stages of drug development. (omitted)

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Design of Economic Screening Inspection Plan for Protecting Given LTPD (LTPD보증을 위한 경제적선별검사방식의 설계)

  • 김광섭
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.11 no.18
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    • pp.27-34
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    • 1988
  • This study is concerned with the development of the economic sampling inspection plan when it is possible to carry out a nondestructive screening inspection for the rejected lots by substitutive characteristics closely related to the original quality characteristic. It is assumed that the probabilities of those errors depend linearly on the fraction defective of the process sampling inspection policy for isolated lot is studied where the probability of accepting the lot with bad quality from the results of sampling inspection is restricted to be small.

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A Study on a space utilization plan for screening clinic in public health center by means of the prevention of respiratory infectious disease - Focused on a negative pressured tuberculosis exam room (호흡기 감염병 예방을 위한 보건소 상시 선별진료소 활용방안 연구 - 음압 결핵 검진실을 중심으로)

  • Yoon, Hyung Jin;Han, Su Ha
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.27 no.4
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    • pp.51-60
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    • 2021
  • Purpose: Tuberculosis(TB) care unit in public health center should be carefully considered to be re-designed as an infection safety environment for both patient and healthcare workers. So, for the enhancement, this study analyses the facility requirements for co-using the screening clinic as a TB and other respiratory disease care unit. Methods: Not only screening clinic facility guidelines from "A Study for Standard Triage Design and Construction Document" but also the guidelines of TB care and related medical facility are reviewed; KDCA, CDC, ECDC and WHO as a TB care, and FGI and NHS for facility. The facility requirements are summarized space, approach, and mechanical requirement in order. By comparing the summary and screening clinic facility guidelines, supplementations are proposed for TB care unit setting. Results: The result of this study shows that both the space program and mechanical requirement of the screening clinic and that of TB care unit are almost identical and could be share, which include direct airflow or negative air pressure in an exam room. To increase functional and economical efficiency, however, it is necessary to consider a multi-functional negative pressured room, So care process may be re-designed based on a room type; face-to-face room or glass wall inbetween. Implications: The facility guidelines for TB care unit of a public health center should be developed to build a safe environment for infection control by reflecting its medical plan and budget.