중학교 정보 교과서에서 "문제해결 방법과 절차" 영역의 창의적 문제해결력 경향 분석

김용대 ( Yong Dae Kim ),최길수 ( Gil Su Choi ),이종연 ( Jong Yun Lee ) 한국컴퓨터교육학회 2012 컴퓨터교육학회 논문지 Vol.15 No.1

정보 교과는 지식정보화 사회에 필요한 정보 활용 능력은 물론 창의적인 문제해결력을 함양하기 개설된 교과이다. 그러나 창의적 문제해결요소가 교과서에 어느 정도 포함되었는지를 분석하는 연구는 미미하다. 따라서 본 논문은 중학교 정보 1 교과서 ``문제해결방법 및 절차`` 영역의 창의적 문제해결력 경향을 정량적으로 분석하였다. 정보 교과서가 창의적 문제해결력 함양 요소를 어느 정도 포함하고 있는지 최길수의 정량적 분석법으로 분석한 결과, 교과서별로 문제해결과정 반영과 문제해결전략 제시의 충실도에 차이가 크게 나타났고 모든 교과서가 활동 요구 지수, 창의적 문제해결력 관련지수, 활동 유형지수가 전체적으로는 바람직한 범위에 있으나 소 영역별로는 바람직한 범위를 벗어난 것이 있는 것으로 나타났으며 지수 값이 균형을 이루지 못한 교과서가 있고 활동 유형이 일부 유형에 치우쳐 있는 것으로 나타났다. 그러므로 앞으로 정보 교과서의 개발 및 수정 보완 시 문제해결과정 반영과 문제해결전략의 충실도를 높이고, 교과서의 학습 활동 구성 시 다양한 학습 활동 유형을 활용하고 기본 정신 기능과 고등 정신 기능을 요구하는 활동 비율의 균형을 유지할 것을 제안하였다. Developing middle and high students` information literacy and creative problem-solving skills in this information-oriented society is very important and for this reason, the subject of informatics has been established. However, little research on creative problem solving literacy of informatics textbooks has been conducted. Therefore, the purpose of this paper is to quantitatively analyze whether ``problem-solving methods and procedures`` parts in informatics textbooks in middle schools present creative problem solving literacy or not and in what degree. Data were quantitatively analyzed using the Gil-Su Choi method. The result of data analysis indicated that all the textbooks turned out to be correct range in the category of the "composition of various learning activities," but got out of range in some categories such as "problem-solving process reflection` and "problem-solving strategy proposal". Also a few textbooks haven`t satisfied in important indexes and activities. So, we suggest that more ``problem-solving process reflection`` and ``problem-solving strategy proposal`` parts should be included in the informatics textbook and more various forms of learning activities be utilized well as the ratio of activities needed primary and high mental processes be kept the balance.

초음파 및 Phased Array를 이용한 터빈 블레이드 루트부 건전성 평가에 관한 연구

길두송,박상기,조용상,이상국,허광범 한국비파괴검사학회 2003 학술대회 논문집 Vol.- No.1

Power plant is consisted of many component parts for the generation of the electricity, and occasionally, turbine equipment may be caused in break-down because of the damage of the blade root. Phased array ultrasonic testing system has become available for practical application in complicated geometry such as turbine blade root, tenon, disc in power industry, This research describes the characteristics of phased array ultrasonic testing signal for various type of blade roots in thermal Power Plant turbines. This application of Phased array ultrasonic testing system has been promoted mainly to save inspection time and labor cost of turbine inspection. The characteristic of phased array ultrasonic testing signal for power plant component in very simple to understand but to difficult for perform the inspection. This paper is focused on the safety of the turbine equipment by the ultrasonic measurement and phased array analysis. As a result of the test through ultrasonic and phased array method, we have concluded that the main damage in these turbine blade root parts could be generated by the concentrated stress and centrifugal force.

중국 채소산업의 경쟁력 분석

권용대,신용길 충남대학교 농업과학연구소 2005 농업과학연구 Vol.32 No.2

This study is to provide a comprehensive overview of the changing vegetable sector of Chinese agriculture and to analyse the competitiveness of Chinese vegetable production. China now produces more than 60% of the world's vegetable supply and that 150 million people are engaged in vegetable production, processing and marketing since the reform of vegetable industry structure started in the late 1980s. As a labour abundant industry, China also features more comparative advantages in the vegetable trade. Although China's vegetable exports still accounts for only 1% of total production, the 5 million tons of export in 2003 makes China one of the largest vegetable players in the international markets. When estimating competitiveness of China's vegetable industry, China's producers' prices for vegetables are founded to be only from 10%~40% of what they are in Korea, while most of China's vegetables have also strong competitiveness in quality. As China joined the WTO in 2001 and expects to increase market share in vegetable trade, the development strategy for Korea's vegetable industry are suggested as follows: 1) focusing on the technology for the growth of vegetable productivity, 2) developing the higher value added vegetable industry through processing, 3) expanding the exported area and leading vegetable varieties.

Parkinson's disease에서 [18F]-FP-CIT을 이용한 Brain PET/CT영상의 유용성

강용길 ; 홍시영 김천대학교 2009 김천대학교 논문집 Vol.30 No.-

Neuroreceptors and transporters have an important role in brain function.Parkinson's disease is a common neurodegenerative disorder that is mainly causedby dopaminergic neuron loss in the substantia nigra.Distribution, density, and activity of neuroreceptors and transporters can bevisualized by radiotracers with PET and SPECT.In vivo PET and SPECT imaging of presynaptic dopamine imaing are alreadyapplied to Parkinson's disease and other parkinsonism, and can demonstrate thedopaminergic dysfunction.Dopamine transporter imaging is useful in the diagnosis of Parkinson's diseaseand the most successful technique in the clinical use of neuroreceptor imaging.​Recently, several radiopharmaceuticals including 123I-FP-CIT, 99mTc-TRODATand 18F-FP-CIT for dopamine transporter imaging have been approved for theroutine clinical use in several European countries, Taiwan and Korea, respectively.Therefore, In this paper an overview of Parkinson's disease medicines for diag-nosis and radioactive 18F-FP-CIT using a PET/CT imaging has confirmed theusefulness of the clinical use.

pV47-2 다좌위탐식자를 이용한 인체 게놈에서 다형성 유전좌위의 분리

남용석,이혜린,한길로,황적준 大韓法醫學會 1997 대한법의학회지 Vol.21 No.2

Two polymorphic loci, so- called FS106 and FS185, have been isolated from the human genome, using a multilocus probe pV47-2, which is extensively used in Korea for forensic investigation such as resolving paternity disputes. Among the several plaques selected from λ Fix-II genomic libraries, fourteen clones have been characterized. Restriction maps of 14 clones were constructed to define the flanking as well as repeat parts. The repeat-free flanking DNA fragments were tested for single locus specific polymorphism, and repeat containing DNA fragments were sequenced for the design of PCR primers. None of the repeat-free flanking DNA fragments was not shown any polymorphisms by RFLP analysis. The (GGT)??-rich sequences in most of repeat containing DNA fragments were identified by sequencing analysis. Most of repetitive sequences consists of major units of (GGT)??, but a regular repetition pattern can not be found in all clones. Two sets of primers designed from flanking sequences of repeat containing DNA fragments were shown length polymorphisms by PCR analysis, when tested in 50 unrelated individuals. Three and four alleles were detected at FS106 and 0.58 for FS185. In addition, two loci, FS106 and FS185, have been mapped on chromosome 5 and 3, respectively, by somatic cell hybrid analysis.

홍수재해 예방을 위한 우수저류시설 설계기법 연구

이길영,성도용 대전대학교 산업기술연구소 2001 산업기술연구소 論文集 Vol.12 No.1

Recent development booms in the upper and middle area of urban watersheds have changed the hydrological responses of watershed due to increase of impermeable areas. Urbanization has brought about an increase of peak flood and total discharge volumes greatly compared with pre-urbanization flood. Some of the people living in the lower area of an urban watershed, very often and seriously, have suffered from inundation. A new concept for urban storm water management is reduction of runoff from the sources in site. This concept has been applied in some countries such as Japan and it has turned out to be an effective measure for urban storm water management. The purpose of this study is to suggest the methodology for the design of storm water reduction facilities. And the design of runoff reduction facilities from source areas and guidelines for the formulation of storm water management policy were proposed. The runoff reduction facilities are including on-line type and off-line type ponds.

시스템 결함 관리를 위한 소프트웨어 패키지 개발

김길용,고정국,윤재식,옥을석 釜山大學校生産技術硏究所 1998 生産技術硏究所論文集 Vol.55 No.-

최근 들어 컴퓨터의 사용 범위가 항공기나 우주선의 자동 항법 시스템, 발전소 제어 시스템 간은 응용 분야에까지 확장되고 있다. 이런 응용 분야에 사용되는 컴퓨터 스스템에서 발생하는 고장은 치명적인 인적, 재정적 손실을 야기할 수 있기 대문에 하드웨어의 고장 또는 소프트웨어 오류가 존재하는 경우에도 자신의 작업을 중단함이 없이 계속 정확하게 수행할 수 있는 시스템을 필요로 하다. 따라서 본 논문에서는 이러한 문제점에 대한 해결책으로 시스템이 동작하는 동안 발생하는 결함에 대한 원인을 분석하고 효과적인 해결 방안을 제시하는 보고서를 자동으로 작성함으로써 결함 탐지와 진단, 보고 기능을 수행하는 결함 관리를 위한 소프트웨어 패키지를 개발하였다. 결함 탐지 방법은 결함 조건 구성 형태에 따라 단일로그 활용방법과 다중로그 활용방법으로 구분되며, 기능 시험 결과 결함 관리 소프트웨어 패키지의 정확한 동작을 확인할 수 있었다. 클라이언트-서버 구조로 구현된 시스템 결함 관리 기능은 소프트웨어 기법 활용하기 때문에 추가적인 비용이 소요되지 않고도 기존 컴퓨터 시스템의 결함 관리 서비스에 활용될 수 있다. Nowadays, the application of computer is widely extending to many spheres such as a navigation system and power plant control system. However, the faults of computer systems in these fields may cause a loss of haman and financial resources, or a disaster, we need a system that can carry out their jobs through hardware errors or software faults. In this paper, as a solution for the problem described above, we developed a software package for fault management that performs fault detection, deagnosis, and reporting through analyzing cause of faults and generating a system fault report automatically. The fault detection methods are divided into two classes based on error log utilizing scheme of a fault analyzer : single log scheme and multiple log scheme. We accomplished a facility test results show that the software package can correctly detect faults. The results also show the usefulness of this package int system fault management. Because this package utilizes software scheme, there is an advantage that it can be used to provide a system fault management with existing computer systems without additional costs.

企業戰略의 變遷過程과 分類體系

鄭用吉 충남대학교 경상대학부설 경영경제연구소 1986 경영논집 Vol.2 No.2

파라콰트 중독에서의 항산화치료

권운용,조유환,송형곤,김명천,이중의,서길준,윤여규 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Background: Paraquat causes severe tissue toxicity when ingested, but has no effective treatment modality. We have shown that high dose vitamin C has effective antioxidant activities against the paraquat intoxication in a previous animal experiment. This study was designed to evaluate the effect of antioxidant therapy with high dose vitamin C and vitamin E in human cases of paraquat intoxication. Methods: From August 1999 to August 2001, 19 paraquat intoxication patients who visited the emergency department of the Seoul National University Hospital and the Kyounghee University Hospital were enrolled to this study. They were devided into two groups, a control group(9 patients) and a study group(10 patients). The control group received only conservative managements including gastro-intestinal decontaminati-on. The study group received conservative managements plus the antioxidant therapy which was composed of vitamin C 24 gm/day intravenously and 20 gm/day orally, and vitamin E 1.6 gm/day orally. Results: In the study group, 5 of 10 patients(50%) survived, but all patients of the control group died(p=0.003). There were no significant differences in age, sex, and usage of gastric lavage and activated charcoal between the two groups. Difference in ingested amount of paraquat between the two groups could not be analyzed due to the inexact and subjective measuring methods based on patients' histories. Conclusion: Antioxidant therapy with high dose vitamin C and vitamin E is effective in vival rate in paraquat intoxicated patients.

Portable Diode Laser와 Fiberoptic Delivery System을 이용한 전립선비대증의 치료

나용길 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.1

Interstitial laser coagulation (ILC) therapy which coagulates prostate tissue is a new and promissing method of treatment for symptomatic benign prostatic hyperplasia (BPH) patients. We studied the clinical efficacy and safety of ILC using a diode laser. A total of 15 patients with symptomatic BPH underwent interstitial laser coagulation by portable diode laser and a fiberoptic delivery system. Voiding outcomes, including international prostate symptom scores (IPSS), peak urinary flow rates, and prostate volume were measured by time, and immediate and short-term (3 months)complications were assessed. Epidural anesthesia was performed in all patients. At 3 months, there was as 64.9% improvement is IPSS (25.9 to 9.1, P<0.05) and a 48.2% decrease in prostate volume (46.2 to 23.9 gm, P<0.05). There were no intraoperative complications. Postoperatively, four patients had tansient hematuria and two had transient urinary retention. Our results show that interstitial laser coagulation by diode laser appears to be a single, safe and efficacious procedure for the treatment of symptomatic BPH. I n addition, it is hoped that this will reduce the postoperative dyuria that a significant proportion of men complan of following endoscopic laser coagulation or vaporization of the prostatic urethral lumen.