• Title/Summary/Keyword: technical development

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A Study on Improvement Plan of Evaluation Method in National Technical Qualification Exam focus on Information Processing Fields based on NCS (NCS 기반 정보처리 분야 국가기술자격 실기시험 평가방법에 관한 연구)

  • Cho, Yong-dae;Moon, Hee-kwon;Yoo, Ju-yeon;So, Kee-ho;Park, Kye-young;Lee, Seok-cheol
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.19 no.6
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    • pp.1277-1282
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    • 2015
  • This paper describes a research for improvement official approval of information processing in national technical qualification. In this paper, we analysis the contents of current exams and propose the new evaluation method of practical exam in information processing fields through grafting new trends of ICT and ability unit, fulfillment criteria in national competency standards(NCS). Also, we have verified the effect of exam through the pilot test. In the future, we will apply the new exams after the revision of guidelines for marking questions by expert group in its duty fields basis on this research

New Corrosion-Resistant Zn-Al-Mg Alloy Hot-Dip Galvanized Steel Sheet

  • Kohei Tokuda;Yasuto Goto;Mamoru Saito;Hiroshi Takebayashi;Takeshi Konishi;Yuto Fukuda;Fumiaki Nakamura;Koji Kawanishi;Kohei Ueda;Hidetoshi Shindo
    • Corrosion Science and Technology
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    • v.23 no.2
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    • pp.121-130
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    • 2024
  • In recent years, Zn-Al-Mg alloy galvanized steel sheets have been widely used as coated steel sheets to support social capital in the infrastructure field. A feature of Zn-Al-Mg alloy-coated steel sheets is that they provide a better corrosion protection period than Zn-coated steel sheets. In this study, the corrosion resistance of a new Zn-Al-Mg alloy-coated steel sheet was investigated and compared to that of conventional commercially available coated steel sheets. The investigation confirmed that increasing the Mg concentration in the Zn-Al-Mg-coated steel sheet improved corrosion resistance, which was more than 10 times that of the galvanized steel sheet specified in JIS G 3302. The study findings also confirmed that the corrosion resistance reached more than twice that of the coated steel sheet specified in JIS G 3323. If such galvanized steel sheets are applied to social infrastructures that are exposed to severely corrosive environments, the service life of the infrastructure might be extended.

Neurocognitive Functions in Infants with Malnutrition; Relation with Long-chain Polyunsaturated Fatty Acids, Micronutrients Levels and Magnetic Resonance Spectroscopy

  • Cakir, Murat;Senyuva, Sukran;Kul, Sibel;Sag, Elif;Cansu, Ali;Yucesan, Fulya Balaban;Yaman, Serap Ozer;Orem, Asim
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.22 no.2
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    • pp.171-180
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    • 2019
  • Purpose: Malnutrition may influence neurocognitive development in children by directly affecting the brain structural development, or indirectly by affecting the children's cognition experience. Malnutrition alters the cell numbers, cell migration, synaptogenesis, and neurotransmission due to inadequate availability of necessary micronutrients to support cell growth. We aimed to analyze neurocognitive development in infants with malnutrition and its association with long chain polyunsaturated fatty acids (LC-PUFA), micronutrients levels and magnetic resonance spectroscopy (MRS) findings. Methods: The study included two groups; group 1, infants with malnutrition (n=24), group 2; healthy infants (n=21). Peripheral blood was obtained from the participants for studying micronutrients and LC-PUFA levels. The neurocognitive development was analyzed by the use of an Ankara Developmental Screening Inventory test. MRS were performed on all infants. Results: All parameters of neurocognitive development and serum calcium ($9.6{\pm}0.9mg/dL$ vs. $10.4{\pm}0.3mg/dL$, p<0.05) and magnesium ($2.02{\pm}0.27mg/dL$ vs. $2.2{\pm}0.14mg/dL$, p<0.05) levels were noted as being low in infants with marked malnutrition. No difference was found in LC-PUFA levels between healthy and malnourished infants. Thalamic choline/creatine levels were significantly high in infants with malnutrition ($1.33{\pm}0.22$ vs. $1.18{\pm}0.22$, p<0.05). Total neurocognitive development in infants was positively correlated with serum calcium levels (p<0.05, r=0.381). Conclusion: Calcium supplementation may improve neurocognitive development in malnourished infants.

A Process of the Technical Performance Management for A Space Launch Vehicle R&D Project (우주발사체 개발사업을 위한 기술성능관리 프로세스)

  • Yoo, Il Sang;Cho, Dong Hyun;Kim, Keun Taek
    • Journal of the Korean Society of Systems Engineering
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    • v.10 no.2
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    • pp.71-79
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    • 2014
  • To enhance success probability of a system development project, its overall risk level should be minimized through systematically managing schedules, costs, and technical performances. However, Attempts to manage technical performance compared to numerous efforts to control costs and schedules in such projects are deficient. Particularly, a space launch vehicle, a large complex system, development project is much less likely to meet its technical performance objectives due to its technological difficulty, along with schedule delay and cost overrun. The technical performance management (TPM) is a method for tracking and managing technical progress in order to achieve technical performance targets within schedule and budget. In this paper, we investigate applications of the TPM in several space launch vehicle development projects. Then we propose and validate the TPM process to achieve a successful mission in such projects.

The AHP Method to Quantitate Investigation Items of Cut Slope (계층분석과정을 통한 절토사면 조사항목의 정량화)

  • Lee, Jong-Young;Shin, Chang-Gun;Kim, Yong-Soo;An, Sang-Lo
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.732-737
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    • 2006
  • The facility diagnosis technique of past subjective judged the technical expert and interpreted stably mainly. The facility the periodical civil official becomes indispensability consequently with the law and the system and objectivity inspection which relates with a this and development of diagnosis technique were necessary. Currently the evaluation elements which relate with an inspection and diagnosis technique depended to the subjectivity of each facility quality, data statistics, diagnosis know-how, various circumstance and the technical expert and the evaluation item came to decide. But the evaluation score distribution of marks of each item depended plentifully in data analysis result and experience. The past method is weak in logically because the objection theoretical background and basis are insufficiency. Consequently in order to apply a data analysis result and an experience logically, it used AHP(Analytic Hierarchy Process) method from this research. It is visible with the fact that the application result reconfirmation and complement process will be necessary the technique which is suitable in the multi facility management. Also it is expected with the fact that the application characteristic from the next relation technique will be excellent.

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Effect upon The Technical Development and Production Stage of Technical Innovation in Small and Medium Industry (중소기업 기술혁신이 기술개발과 생산단계에 미치는 영향 실태분석)

  • Jang, Tae-Jong;Kim, Neung-Soo;You, Young-Bok
    • Journal of Information Management
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    • v.38 no.4
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    • pp.166-180
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    • 2007
  • The impact of technical innovation upon technical development and production stage in small and medium industry was analyzed through a survey. 54.0% of the respondents answered that employee invention compensation system was 'highly helpful' to technical innovation, while 23% 'important'. 170 of the respondents answered that technical innovation due to employee invention compensation system took place at the stage of 'technical development', while 138 'idea gathering'. That explains that many innovative activities are taking place in the course of idea gathering from customers, competitors and experts; and production stage also requires innovative activities.

A Study on the Improvement of set-up of Required Operational Capability set up and Test & Evaluation method of Weapon System (무기체계 작전운용성능 설정 및 시험평가방법 개선에 대한 연구)

  • Eom, Dong Hwan
    • Journal of the Korean Society of Systems Engineering
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    • v.15 no.2
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    • pp.9-16
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    • 2019
  • The most important task in acquiring the weapon system is to determine the required performance and to test & evaluate it. The importance of the weapon system by ROC (Required Operational Capability) is not considered, and system development and test evaluation are carried out. In addition, technical incidental performance is tested on the same basis as ROC in the test evaluation and determined according to the result. Development test and evaluation that evaluates technical ability is very important, but development agency is supervised and performed. In this paper, we propose a method to give weights considering the importance of ROC, a technical incidental performance determination and test procedure, and a improvement plan for the development and operational test & evaluation.

An Empirical Study on the Impact of Business Performance in Factors of Product Development (제품개발요인이 경영성과에 미치는 영향에 관한 실증연구)

  • Lee, Kwang-Soo;Ree, Sang-Bok
    • IE interfaces
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    • v.24 no.3
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    • pp.196-209
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    • 2011
  • In This Study, New Product Development Activities, Innovation Activities, Technical Cooperation Activities may have an Impact on Competitive Advantage, Development Performance and Business Performance. The aim of Empirical Analyze is to identify the Structural Causal Relationship among the Activities and Performance Factors. We get the Results as Follows : New Product Development Activities have a Positive Impact on Competitive Advantage as well as the Development Performance. Technological Innovation Activities have a Positive Impact on Competitive Advantage, and do not have enough Impact on the Development Performance. Technical Cooperation Activities have a Positive Impact on the Development Performance, and do not have enough Impact on the Competitive Advantage, Competitive Advantage has a Positive Impact on the Development Performance as well as the Business Performance. Development Performance has a Positive Impact on the Business Performance.

A Study on Technical Measures and their Application (기술척도 적용 연구)

  • Choi, Seok
    • Journal of the Korean Society of Systems Engineering
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    • v.3 no.2
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    • pp.3-8
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    • 2007
  • Technical Measures includes Measures of Effectiveness(MOEs), Key Performance Parameters(KPPs), Measures of Performance(MOPs) and/or Technical Performance Measures(TPMs). Technical measurement is the set of measurement activities used to provide supplier and/ or acquirer insight into progress in the definition and development of the technical solution, ongoing assessment of the associated risks and issues. This paper describes how technical measures can be applied, using the measurement process described in the previous study and shows the relationship between the various types of technical measures.

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A Study on the Development of Technical Guidelines for Safety and Health in Agricultural Workplaces (농작업현장에 적용 가능한 안전보건 기술지침 항목 선정에 관한 연구)

  • Jung, Wongeon;Kim, Kyungsu;Seo, Mintae;Kim, Hyocher
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.31 no.4
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    • pp.385-395
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    • 2021
  • Objectives: This study aimed to select items for technical guidelines through the guidelines of the Korean Occupational Safety and Health Agency (KOSHA) for agricultural workplaces. Methods: All 1,308 guidelines provided by KOSHA were reviewed and categorized using a Delphi technique questionnaire on their compatibility and urgency. Results: Among all the KOSHA guidelines, 100 items related to agricultural workplaces were selected. After that, two Delphi questionnaires were conducted and 46 items were finally selected. The average compatibility was calculated as 4.26, and urgency was 2.39. As a result of measuring the content validity of 46 items, six items were identified that were not relevant to agriculture. The final selected items were classified into four categories: Health examination and management, machinery standards, safety and health standard guides, and workplace environment management. Conclusions: The various risk factors at agricultural workplaces should be prevented and managed. It was shown that related technical guidelines or work standard manuals should be prepared. The technical guidelines of KOSHA will be provided as basic categories in the agricultural sector.