고등학교 멀티미디어 역학 실험장치 개발

김경윤,이희복,김용복 공주대학교 사범대학 과학교육연구소 1998 과학교육연구 Vol.29 No.1

본 연구에서 개발한 멀티미디어 시스템은 컴퓨터의 멀티미디어 기능과 실험장치로서의 기능을 결합하나 고등학교 역학실험용 멀티미디어학습시스템이다. 멀티미디어 기능은 CAI로서 그래픽이나 애니메이션, 동영상 등을 보여줄 수 있고, 시늉실험을 하게 할 수 있다. 또한 컴퓨터는 실험데이터를 정확하게 수집할 수 있다. 전통적으로 역학용 탐구실험에서 물체의 운동을 기록하기 위하여 사용하고 있는 기존의 타이머는 실험 데이터를 구하는 데 복잡하고 부정확하다. 본 연구에서 개발한 시스템은 기존 타이머의 부정확한 점을 개선하고, 실험과 관련된 내용을 학습할 수 있도록 멀티미디어 기능을 접속시켰다. The Multimedia system for mechanics experiments in high school is a leading learning aids which combines a multimedia function of computer with a computer controlled experiments. Multimedia functions are very helpful for computer aided instruction (CAI) by showing graphics, animations, videos, and also by practising simulation programs. And also a computer can acquire experimental data very accurately. A conventional timer which is widely used for measuring the motion of an object in mechanics experiments, a traditional faculty for inquiry study, is too complicated and inaccurate for dealing with data. The Multimedia system for mechanics experiment developed in this study was designed to improve the accuracy of the measurement in mechanics experiments along with learning subjects related to the experiments.

Newcastle병 면역에 대한 연구

박경수,김종세,노영복 조선대학교 기초과학연구소 1987 自然科學硏究 Vol.10 No.1

A study was conducted to determine whether the vaccination programs for the control of Newcastle Disease (ND) would affect the immune status of hens against the disease as a purpose of suggesting the distinguished vaccination programs. Fifteen poultry flocks were surveyed to investigate the level of serum antibody against ND virus and the programs used for the vaccination of hens. Alternatively, vaccination was carried out by the programs designed against ND virus in hens called Manina and investigated the level of HI titer every week, and surveyed the alternation of hematological occurrence following the vaccination programs. The obtained results were summarized as follows: 1. Vaccination history of the investigated 15 poultry flocks were not according by standard vaccination programs and immunization was carried out for random at every poultry farms. Killed and Live vaccin was used together in 7 groups and only Live vaccin was used in 6 groups, and only killed vaccin was used in groups. 2. HI titer of these was 140 in average by killed and live vaccin, and live vaccin was 126 in average. The former was shown higher HI titer. 3. The number of leucocytes was shown much increased hy the designed vaccination program, and 9525/㎣ was shown by 2nd vaccination (9weeks), and 1067O/㎣ was shown highest by 6th vaccination (25weeks). 4. HI titer was 240 by 2nd vaccination and it was continuous to increase. HI titer was 320 by 6th vaccination. The effects of the repeated vaccination were distinguished. 5. Serum globulin value was increased according to the vaccination program. The highest value ware 3.54㎎/㎗ and 3.54㎎/㎗ in 22 weeks and 23 weeks, each γ globulin value of these were 0.95㎎/㎗ and 0.99㎎/㎗.

중국, 한국, 조선족 중고등학생의 학교따돌림 피해실태에 대한 비교연구

최미경,김광일,박용천,이동근,고복자 關東大學校 醫科大學 醫科學硏究所 2004 關東醫大學術誌 Vol.8 No.2

This study was attempted to compare the aspects of victims including incidence rate of bullying victims, type of bullying and period and place of bullying for the past one year among Chinese, Korean and Korean-Chinese juveniles of 605, 683 and 617, respectively. Investigation with the self-administered questionnaire was conducted, which was for Korean, Chinese and Korean-Chinese junior high and high school students(12 schools in total of each 2 junior high schools and each 2 high schools) in Seoul and Yanbian between Oct. 2001 and Mar. 2002. Findings of this study are as follows: The definite characteristics of Korean victims were found: Generally, they showed low incidence rate of bullying victims but they showed more "alienated follower type" bullying, more period and frequency of bullying, and more collective bullying than Chinese and Korean-Chinese students. Also, they showed more severe psychological pain and lethargy - a state of sluggishness when other students are bullied - compared to Chinese and Korean-Chinese students. The other side, most of Korean-Chinese victims replied "They wanted revenge" as a feeling after being bullied like Korean victims but significant numbers of them replied "They endured" as a coping method, suggesting their psychological pain. On the other hand, Korean-Chinese students showed more bullying victims "outside the school" than Korean and Chinese students, suggesting difficulty in intervention. It is concluded that comparative studies on individual conditions and cultural characteristics of the victims are further needed in order to make the above-mentioned differences clear.

전남지역 논토양의 미생물상에 관한 연구 : 미생물 분포조사와 불완전 균류의 동정에 대하여 Distribution of the microflora and identification of the imperfect fungi

朴京洙,金鍾世,朴悅,盧永福 조선대학교 기초과학연구소 1985 自然科學硏究 Vol.8 No.1

전남지역 일원인 광주를 비롯한 8개 지역을 임의로 선정하여 1983년 10월 20일부터 11월 5일 사이에 논토양을 채취하였다. Plate dilution method로 각 지역별 작토층에 서식하고 있는 미생물 취락정도를 조사하고 사상균류만을 선정하여 불완전균류만을 분리동정하였다. monsporic culture로 얻은 순수 균주는 50균주로서 관련된 참고자료들에 의해 39균주를 동정하였으며 동정된 균주는 5속 8종이였다. 본 조사에 의해 밝혀진 미생물 분포정도와 동정된 균주 내력은 다음과 같다. 1. 전남지역 일원의 논토양에서 평균미생물 취락수는 세균이 19.5×10^6이고 방선균이 38.1×10^5이였다. 사상균은 42.5×10^3으로 나타났으며 B/F, B/A 및 A/F율은 각각 458.8, 5.1과 89.6이였다. 2. 전남지역 일원의 논토양에서 분리된 사상균 중 불완전균류 5속 8종을 동정하였으며, 동정된 균주는 다음과 같다. Trichoderma virides, Alternaria alternata, Cladosporium cladosporioides, Penicillium citrinum, Penicillium implication, Penicillium janthinellum, Aspergillus niger, Aspergillus clavatus이다. This investigation was conducted to find out microflora of the paddy soil in Chunnam. Eight paddy soil samples were collected from the different sites. By the dilution plate method, a total number of microorganism was recorded at the upper layer (0∼10cm in depth). The fungi were isolated at the dilution plate from paddy soil samples of eight selected sites. They were obtained after pure cultures with a total of 50 isolated strains. Among these, 39 isolated strains (8 species in 5 genera) were identified and 11 isolated strains were unidentified. The results were summarized as follows; 1. The mean numbers of microorganisms in collected paddy soil were 19.5×10^6 in bacteria (B), 38.1×10^5 in actinomycetes (A), and 42.5×10^3 in fungi (F) per gr paddy soil. The ratios of B/F, B/A and A/F were 458.8, 5.1 and 89.6 respectively. 2. 39 isllated strains (8 species in 5 genera) of imperfect fungi were identified as follows; Trichoderma virides, Alternaria alternata, Cladosporium cladosporioides, Penicillium citrinum, Penicillium implication, Penicillium janthinellum, Aspergillus niger, Aspergillus clavatus.

스캔 설계 법칙 검사에 관한 연구

이재훈,김형국,조경연,임동욱,민형복 成均館大學校 科學技術硏究所 1997 論文集 Vol.48 No.2

Since testing of digital circuit is becoming increasingly important, many methodologies have been introduced to enhance design for testability (DFT). DFT was taken into account in the automated test procedure and improved reliability of the design. Both tasks are well suited for scan rule checker. This paper presents a scan rule checker for gate level digital circuits. The scan rule checker deals with basic rule check, basic scan rule check, muxed scan rule check, clocked scan rule check and lssd. Scan design informations were represented in the configuration file and libraries were modeled for the scan rule checker. It is an efficient way for the design for testability methodology.

속성 퇴비화에 관한 연구

임채규,박경수,김홍섭,노영복 조선대학교 기초과학연구소 1988 自然科學硏究 Vol.11 No.1

This experiment was conducted to fine out the rapid composting method and the effects microorganism agent. The results were summarilized as follows; 1. Each temperatures of every composts highest rised at the 5 days during the experiment composting. 2. Composting temperature of the more 60℃ was killed the harmful lavar and pathogenic microorganisms. 3. The lowest C/N ratio was No.2, among the each treatments. 4. C/N ratio of the each treatments were same results of the general compost C/N ratio. 5. The synthesized of these results were recognized the effects of microorganism agent and the each treatments were showed the more rapid composting then general compost.

HSS STI-CMP적용을 위한이중 패드의 최적화

서용진,박성우,김철복,정소용,이경진,김기욱,박창준 대불대학교 2002 大佛大學校大學院 硏究論文集 Vol.- No.1

As the device geometry shrinks to the deep submicron region, chemical mechanical polishing(CMP) planarization become a more essential technique of advanced ULSI process. Also, CMP process was required for the global planarization of inter-metal dielectric(IMD), inter-level dielectric(ILD) layers and interconnections with free-defect. Especially, the complete global planarization of IMD, ILD and interconnections can be achieved only with the CMP process. However, as the IMD and ILD layer gets thinner, several problems were found in the CMP process. It does have various problems such as dishing effect, torn oxide defects and nitride residues in oxide. So, it leads to severe circuit failure, which affects yield. In this paper, we studied the characteristics of polishing pad, which can apply STI-CMP process for global planarization of multilevel interconnection structure. Also, we investigated the effects of different sets of polishing pad, such as soft and hard pad. As an experimental result, hard pad showed center-fast type, and soft pad showed edge-fast type. Totally, the defect level has shown little difference, however, the counts of scratch was defected less than 2 on JR111 pad. Through the above result, we can select optimum polishing pad, so we can expect the improvement of throughput and device yield.

CMP 공정의 재현성 확보를 위한 공정제어 범위의 결정

서용진,정소영,김철복,박성우,이경진,김기욱,박창준 대불대학교 2002 大佛大學校大學院 硏究論文集 Vol.- No.1

To achieve the ULSI goals of higher density and greater performance, STI(shallow trench isolation)-CMP(chemical mechanical polishing) process has been attracted. Recently, the direct STI-CMP process without the conventional complex reverse moat etch process has established by using slurry additive with the high selectivity between SiO2 and Si3N4 films for the purpose of process simplification and in-situ EPD(end point detection). However, STI-CMP process has various defects such as nitride residue, torn oxide and demage of silicon active region. Also, it was difficult to assure the suitable process margin in the STI-CMP process. To solve these problems, in this paper, we discussed to determine the control limit of process, which can entirely remove the oxide on nitride film from the most area of high density as reducing the damage of dense moat area and minimizing dishing effect in the large field area. We, also, evaluated the wafer-to-wafer thickness variation and the day-by-day reproducibility of STI-CMP process after repeatable tests.

한국의 발톱진균증 환자의 삶의 질에 관한 연구

조백기,박종갑,김형옥,김성욱,백승철,김진우,김시용,안규중,전재복,오지원,김낙인,이규석,오칠환,김수남,김상태,손숙자,신용우,김동석,이원우,권경술,서대헌,황규왕,이종석,고재경,강원형,정기양,최응호,김기홍,박석돈,강승주,함정희,명기범,김방순,구상완,김병수,원영호,김한욱,송은섭,정병수,노병인,홍창권,박장규,한지윤,김광중,구대원,김종민,김재홍,유희준,양경미 대한의진균학회 1998 대한의진균학회지 Vol.3 No.2

Background: Onychomycosis, especially toenail onychomycosis has become one of the common fungal infection and has historically been regarded as a cosmetic rather than medical problem by many patients, even by physicians. Recently, however, there are several reports that is a refractory disease which may cause a deleterious effect on patiets quality of life (QOL). Objective: The purpose of this study was to investigate the impact of toenail onychomycosis on QOL in Korea and to assess the chandes of QOL after treatment. Methods: Total 1004 patients with toenail onychomycosis which was confirmed by clinical findings and KOH preparation were were enrolled at 47 dermatologic centers in Korea, and interviewed with standardized QOL questionnaire before and after sytemic antifungal treatment. Responses to the questionnaire were scored by 5-point scale (1∼4) and averaged, and were analyzed for 5 dimensions of emotional impact, social impact, symptorn and functional impact, patients views concerning treatment, and relationship with doctor. Results: 1. Before and after treatment, the most serious impact was emotional dimension showing 1.90 and 1.30 in average score (AS), and social (AS: 1.14 and 0.83) and symptom and functional impact (AS: 1.05 and 0.92) was also affected. 2. In female rather than male, statistically more significant impact on patients QOL was observed in all dimensions. 3. After treatment, 3 of 5 dimensions were improved significantly - emotional dimension (AS : from 1.90 to 1.30), social dimension (AS: from 1.14 to 0.83), patients view concerning treatment (AS: from 1.34 to 1.02). 4. The drgree of patients satisfaction at the therapeutic effect was very high- 62.4% (immediately after treatment) and 65.8% (9 months affer initiation of treatment) of patients answered excellent or good. Conclusion: This study confirms that toenail onychomycosis has significant impact on the overall QOL of patients. Also the effect of antifungal therapy on patients QOL were watisfactory. Therefore, both doctor and patient should pay more attention to the treatment of onychomycosis. [Kor J Med Mycol 3(1): 115∼124]

Haplogroup Classification of Korean Cattle Breeds Based on Sequence Variations of mtDNA Control Region

Kim, Jae-Hwan,Lee, Seong-Su,Kim, Seung Chang,Choi, Seong-Bok,Kim, Su-Hyun,Lee, Chang Woo,Jung, Kyoung-Sub,Kim, Eun Sung,Choi, Young-Sun,Kim, Sung-Bok,Kim, Woo Hyun,Cho, Chang-Yeon Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.5

Many studies have reported the frequency and distribution of haplogroups among various cattle breeds for verification of their origins and genetic diversity. In this study, 318 complete sequences of the mtDNA control region from four Korean cattle breeds were used for haplogroup classification. 71 polymorphic sites and 66 haplotypes were found in these sequences. Consistent with the genetic patterns in previous reports, four haplogroups (T1, T2, T3, and T4) were identified in Korean cattle breeds. In addition, T1a, T3a, and T3b sub-haplogroups were classified. In the phylogenetic tree, each haplogroup formed an independent cluster. The frequencies of T3, T4, T1 (containing T1a), and T2 were 66%, 16%, 10%, and 8%, respectively. Especially, the T1 haplogroup contained only one haplotype and a sample. All four haplogroups were found in Chikso, Jeju black and Hanwoo. However, only the T3 and T4 haplogroups appeared in Heugu, and most Chikso populations showed a partial of four haplogroups. These results will be useful for stable conservation and efficient management of Korean cattle breeds.