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하영석,류건우 계명대학교 국제학연구소 1999 국제학논총 Vol.4 No.-
<Abstract>The textile industry of Daegu used to be pivotal in the economic development and industrialization of Korea, and played a leading role in export during the 1970´s. Recently the city could not sustain the fame and glory of the past because of a lack in information sharing, partnering and R&D.By this reason, this paper tries to analyse some factors of the textile industry of Daegu, such as degree of satisfaction with parter companies, participation in quick response system(QRS) if it is settled, and establishment a flexible production system. These are the fundamentals to activate QRS, which was originated in the US textile & apparel industry around the middle of 1980’s, and to enhance international competitiveness.To achieve the purpose of the research, 161 firms were investigated, classified by yarn manufacture, weaving manufacture, sub-contracted weaving manufacture, dying manufacture and converter & textile-exporting firms. And the analysis was performed on the basis of the results of questionnaire.As the result of logistic regression analysis, the following characteristics were exploited: Most important partners in the future related to production were chosen by the order of yarn manufacture, dying manufacture, weaving manufacture and converter & textile-exporting firms. The percentage of selection in a multiple choice were 58%, 52.9%. 49% and 40.7% respectively. And the independent or contracting companies were more satisfied to the partners than the others. Also the more employers it had, the more satisfaction it felt to the partners. Furthermore, it was found that the companies with LAN were reluctant to participate in QRS. Finally, medium size companies which had own brand were well equipped for a flexible production system, comparing to others.In conclusion, it can be suggested that the medium size weaving manufacture with core technology have to play an important role in expansion of QRS to the sub-contracted or out-sourced companies.
수도관의 생물막 형성에 미치는 잔류염소와 파이프 재질의 영향
박세근,박재우,성권식,최성찬,김영관 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B
This laboratory study examined the impact of free chlorine residual and pipe material on the formation of biofilm in drinking water distribution pipe surfaces. Result of heterotrophic plate counts(HPC) of the biofilm in the tap water- supplied reactor averaged 2.17×105CFU/cm2 on PVC and 2.43×105CFU/cm2 on STS 316, respectively. HPCs on the surface exposed to the tap water containing 0.2mg/L of free chlorinne residual averaged 4.24×104CFU/cm2 on PVC and 6.54×104CFU/cm2 on STS 316, respectively Average of HPC/Total direct counts in the tap water-supplied reactor ranged from 1.08%(PVC) to 1.26%(STS 316) and from 0.38%(PVC) to 0.65%(STS 316) in the reactor supplemented with disinfectant, resfectively. No correlation was observed between disinfectant addition and biofilm density. With regard to the biofilm formation, little difference existed between PVC and STS 316. Yellow and red pigmented bacteria were the dominant expressions in bulk fluid, whereas non-pigmented bacteria were found dominant in the biofilm. Pink/red pigmented bacteria were found to be facultative anaerobic, while yellow pigmented bacteria and non-pigmented bacteria were found to be obligate aerobic.
이형근,최원길,박영성 大田大學校 環境問題硏究所 1997 환경문제연구소 논문집 Vol.2 No.-
Recently the more stringent emission standards of government promulgate the incentive for developing the technology capable of simultaneous removal of SO₂ and NOx from flue gas. This study was to develope an enhanced absorbent in reactivity and adsorption ability for removing SO₂and NOx from flue gas. The characteristics of spray drying absorption(SDA) process and status of SDA process were studied, as well as analysis of properties of absorbent and its manufacturing method. CaO, MgO, and NaHCO₃were selected as a alkali reagent, and they were mixed with fly ash(FA) or activated carbon powder(AC) and their the reactivity and adsorption ability toward SO₂and NOx were greatly enhanced through got water curing process. Among the highest. The surface area of MgO mixed with FA(30%) was greater than NaHCO₃, but the SO₂and NOx removal performance of MgO mixed with FA(30%) was much lower than that of NaHCO₃. The removal quantity of SO₂and NOx per mole of NaHCO₃mixed with FA(30%) was 2.7 mole, this meant that the effect of physical adsorption was greater than chemical reaction between absorbent and acid gases.
송근영,강길,박정희,김경종,민영돈,박치영,임성철 朝鮮大學校 附設 醫學硏究所 2002 The Medical Journal of Chosun University Vol.27 No.2
Gastric small cell carcinoma(SCC) is defined as poorly-differentiated neuroendocrine tumor of the stomach, and their morphologic and biologic features arc similar to those of the lung. It is known that this tumor has poor prognosis even in early pathologic stage, It acounts for only 3% of all gastrointestinal SCC. that has been reported only 33 cases outside and 6 cases inside of the comitiy. Most of these reports are related to advanced gastric SCC. as pathologic stage IIIb or IV. This report describes a case of early gastric SCC. pathologic stage Ib.
김영근,조경호 제주대학교 공과대학 첨단기술연구소 2006 尖端技術硏究所論文集 Vol.17 No.1
In this paper, a new nesting method based upon the 'word representation' of parts and raw sheets is proposed to improve the performance of pixel-based nesting. In this new representation, the pixel patterns of parts and sheets are converted to proper word-sets. And all the usual nesting processes such as part allocations, de-allocations, overlap testings and etc. can be performed through the 'bit operations' between words of the parts and sheets. The proposed method shows some possibilities to overcome the shortcomings of the traditional pixel-based nesting. In addition, a new efficient gap searching method based upon the quad-tree is presented to locate proper allocation positions of the parts.
초등학교 남ㆍ녀 체육영재 선발자의 체형특성에 관한 연구
류영주,백영호,신상근 부산대학교 과학교육연구소 2012 교사교육연구 Vol.51 No.3
본 연구는 2009년 체육영재 선발에 참가한 부산, 울산, 경남지역 초등학교 1~3학년에 재학 중인 남자체육영재 선발자(n=50), 여자체육영재 선발자(n=10), 남자체육영재 비선발자(n=63), 여자체육영재 비선발자(n=31), 일반남자학생(n=14), 일반여자학생(n=14), 총 182명을 대상으로 체형특징을 분석하여 선수자원의 감소와 기초종목 기피현상을 해소하기 위해 체육영재를 발굴, 양성하는데 그 목적이 있다. 본 연구의 자료처리 SPSS(Version 18.0)를 이용하여 성별과 집단간 상호작용효과를 보기 위해 two-way ANOVA를 실시하여 검증하였다. 초등 남ㆍ녀 체육영재선발자의 신체 10개 부위의 형태 계측치와 H-C 체형 3요소에 대한 특성을 파악분석하기 위한 연구의 결과에서 다음과 같은 결론을 얻었다. 초등학교 남ㆍ녀체육영재 선발자와 비선발자, 일반학생의 신체 10개 부위 중 1개 부위를 제외한 9개부위의 형태계측치에서 유의한 차이를 보였다. 평균 체형의 특징에 있어서, 남자체육영재 선발자는 ‾S=2.8-3.8-3.3의 중배엽형 외배엽형, 남자체육영재 비선발자는 ‾S=4.2-4.2-2.8의 중배엽형 내배엽형, 일반남자학생은 ‾S=5.7-4.6-2.5의 중배엽형 내배엽형으로 나타났다. 여자체육영재 선발자는 ‾S=3.3-3.0-3.9, 여자체육영재 비선발자는 ‾S=3.6-3.5-3.3의 중앙형, 일반여자학생은 ‾S=6.9-4.5-2.1의 중배엽성 내배엽형으로 나타났다. 비만의 정도를 나타내는 내배엽성요소에 있어서 남ㆍ녀 체육영재 선발자와 비선발자가 남ㆍ녀 일반학생보다 유의(p<.001)하게 낮은 것으로 나타났다. 근과 골의 발달정도를 나타내는 중배엽성요소에 있어서 남ㆍ녀 일반학생이 남자체육영재 선발자와 여자체육영재 선발자, 비선발자보다 유의(p <.01)하게 높은 것으로 나타났다. 여윔의 정도를 나타내는 외배엽성요소에 있어서 남자체육영재 선발자, 여자체육영재 선발자와 비선발자가 일반여자학생에 비해 유의(p <.05)하게 높은 것으로 각각 나타났다. The purpose of this study was to resolve issues of reduced number of athletes and avoidance of basic sports, and to recruit and train athletic talents by comparing the H-C somatotypes of selected sports talents, non-selected sports talents, general school students. The subjects participated in this study were 7 through 9 years of age who were elementary school boys and girls. The total subjects were 127 boys and 55 girls. All subjects of this study lived in Pusan, UIsan Metropolitan City and Gyongsang Nam Do Province. All subjects were divided into six groups; selected sports talent boys (n=50), non-selected sports talent boys (n=63), selected sports talent girls (n=10), non-selected sports talent girls (n=31), general school boys (n=14), general school girls (n=14). The data were analyzed by SPSS 18.0 program for a comparison of anthropometric variables and 3 somatotype components conducting two-way ANOVA. The results of this study were as follows; In body height, body weight, humerus readth, femur breadth and 4 site skin fold, all anthropometric variables were ignificantly ifferent in boys and girls of selected sports talent and non-selected sports talent and general school. In the mean somatotype, selected sports talent boys were esomorph-ectomorph (‾S=2.8-3.8-3.3); non-selected sports talent boys were mesomorph-endomorph (‾S=4.2-4.2-2.8); general school boys (‾S=5.7-4.6-2.5). In the mean somatotype (‾S), selected sports talent girls were central type (‾S=3.3-3.0-3.9); non-selected sports talent girls were central type (‾S=3.6-3.5-3.3); general school girls were endomorphic type (‾S=6.9-4.5-2.1). In the degree of obesity on the ndomorphic component, selected sports talent boys and girls, non-selected sports talent boys and girls were significantly (p <.001) lower than those of general school boys and girls. In the degree of muscle and bone development on the mesomorphic component, general school girls were significantly (p <.001) higher than those of selected sports talent girls. In the degree of lean on the ectomorphic component, selected sports talent girls were significantly (p <.001) higher than those of general school girls.
신향근,양기열,정권수,송영무 順天大學校 師範大學 附屬 科學敎育硏究所 1996 科學과 敎育 Vol.4 No.-
Since the academic year of 1994, the Scholatic Ability Test(abbr. S.A.T) was given for students who wanted to get adimssions from universities and colleges in Korea. This test has revolutionized the pattern of teaching and learning mathematics in most highschool classrooms. In this paper, we will show a feature of S.A.T. and analyze mathematics problems of 1997's S.A.T.
유방암에서 종양의 크기와 액와림프절 전이의 상관성을 근거로 한 액와림프절 절제술의 생략
송근영,조현진,김권천 朝鮮大學校 附設 醫學硏究所 2005 The Medical Journal of Chosun University Vol.30 No.2
Purpose: The aim of this study is evaluation of the relations between axillary lymph node status and tumor size, and then applied the omission criteria of axillary lymph node dissection in early breast cancer. Materials and Methods: We reviewed 110 patients underwent radical mastectomy and axillary lymph node dissection in breast cancer at Chosun university Hospital between Feb. 1996 and Mar. 2003. We evaluated the correlations between clinicopathologic factors, axillary lymph node status, and presence of metastasis. Results: Correlations between clinicopathologic factors and axillary lymph node status were statistically significant (p=0.01). Correlation between locoregional metastasis and distant metastasis and axillary lymph node status was significant (p=0.03). Results from the number of histologically-positive lymph nodes were significant (p=0.02) as that of lymph node status. Conclusions: The rate of axillary lymph node metastasis in Tla breast cancer is minute. And, preoperative evaluations and postoperative routine radiation therapy can control the axillary lymph node metastasis in Tla breast cancer. So, omission of the axillary lymph node dissection in Tla breast cancer may be considerable.
한근희,박영성,류정인 대전대학교 산업기술연구소 1999 산업기술연구소 論文集 Vol.10 No.2
The incineration characteristics of sludge sample were investigated in a fluidized bed incinerator(φ 0.2m, 3.0m height). The sewage sludge with heating value of 2480kcal/kg, and 22% moisture content was used as sludge sample. The characteristics of sludge incineration in terms of combustion efficiency, axial temperature profile and heavy metal analysis of sludge and ash were studied. The combustion efficiencies were found to be no less than 99%, which indicates that the fluidized bed incinerator can be very effectively applied to sewage sludges. It was also found that the heavy metal components were remained in the sludge ash after incineration due to the relatively low combustion temperature of the fluidized bed incinerator.
체육의 사회조사와 측정평가의 과학적 자료분석을 위한 통계적 검증력
백영호,이근모 釜山大學校 附設 體育科學硏究所 1992 體育科學硏究所 論文集 Vol.8 No.-
The purpose of this study was organized to understand statistical power analysis for physical educators. There were six factors summarized as following: 1. The discrepancy between what is hypothesized and what is true: the larger the discrepancy, the lower β. The magnitude of this discrepancy is simply a fact of life; the experimenter has no control over it. 2. Sample size: the larger sample size, the lower β. This is the most important of all factors in controlling Type II error. The experimenter can choose the size we wants without having an adverse effect on other important considerations, and it is relatively easy to manipulate. 3. The standard deviation of the variable: the smaller δ, he lower β. The standard deviation can be reduced somewhat by improving the reliability of the measure, although usually the return is small for the effort expended. 4. Relation between samples (more than one mean): dependent samples can lower β. Choosing the dependent-samples design may have better potential for reducing β when comparing two (or more) means. In general, the higher the correlation induced by pairing, the stronger the effect on β. However, there are several problems with this design that do not characterize the independent-sample design. 5. The level of significance: the larger the value of α, the lower β. Although it would be possible to alter the choice of a in order to gain a desired value for β, it is a poor idea. α ought to be decided on its own merits and other means used to control β. The inverse relationship between α and β does remind us, however, of the danger of choosing an unnecessarily small value for α. 6. The choice of HA: β is smaller for a one-tailed test that for a two-tailed test. Again, ?? is under control of the experimenter, but its choice ought to flow from the logic of the study, not from the desire to control β.