도시계획시설 공급수준에 관한 연구

오재화,이재복,박영수 朝鮮大學校 建設技術硏究所 2007 建設技術硏究 Vol.27 No.1

This study examines the urban characteristics and decision of urban planning facilities analyzes independent variables having correlation with population size with metrical approach and then obtains the following results. First, In correlation analysis, major urban planning facilities invested in the analysis had high correlation to population size and in particular, school and sewerage showed very high correlations and consistent results between population size and variables related to urban planning facilities were drawn. Second, Urban planning facilities having higher discrimination affecting urban scale obtained by means of standardized discrimination function coefficient include sewerage, school, square and market in order. Third, Urban planning facility having the greatest influence on urban population among six urban planning facilities in multiple regression coefficients was sewerage, decision area of urban planning facilities in proportion to population size tended to wide and park and amusement park showed inverse proportion to decision area of urban planning facilities.

저항방사열계 적외선 감지기 제조를 위한 바나듐 산화막의 전기적 특성 및 유전 특성

박재홍,최용남,최복길 공주대학교 생산기술연구소 2000 論文集 Vol.8 No.-

For fabrication of bolometric infrared detector, thin films of vanadium oxide(VO_(X)) was deposited by r.f. magnetron sputtering from V_(2)O_(5) target in 10% gas mixture of argon and oxygen, and in-situ annealed in vacuum with different temperatures and times. Crystall structure and surface morphology of films were characterized through XRD and SEM. In order to measure the current-voltage characteristics, temperature dependence of conductance, and dielectric properties of vanadium oxide, Al/VO_(X)/Al sandwich devices structure was adopted. The films prepared below 200℃ were amorphous, and those prepared above 300℃ were polycrystalline. Above 3×10^(4)V/cm conduction of vanadium oxide is limited by space charge formed near electrode.? Conduction mechanisms above 10^(5)V/cm are due to Schottky emission and Fowler-Nordheim tunneling effects. Resistance and capacitance of grain boundary are decreased with increasing annealing temperature. Oxygen vacancy is related to the localized state and non-stoichiomeric of vanadium oxide.

고추에 있어서 遊離糖의 雜種强勢와 組合能力

朴載福 서울市立大學校 1987 論文集 Vol.21 No.2

In this paper changes in glucose and fructose content of pepper fruit during development were investigated with three cultivars(Takanotsume. Punggak, Fushimi-amanaga) and their F₁hybrids. In general, glucose and fructose content tended to increase from 2 weeks after flowering until the highest growth of fruit, and then the contents showed a slight decline. Free sugar content of Punggak and Fushimi-amanaga started to increase again at coloring stage of fruit but Takanotsume reduced steadly until its full ripening stage. F₁hybrids showed a middle pattern of parents, and F₁ hybrids in combination using Takanotsume as parents showed a trend of parallel condition or gradual decrease after the green maturing stage. The genetic effects of parental cultivars on the phenotype of F₁hybrids with regard to the glucose and fructose content of ripened fruit were studied by a diallel cross analysis with six cultivars(Ta-kanotsume, Punggak, Fushimi-amanaga. Peterson's Green, Goseung, Changyeung). The general combining ability(GCA) is higher than specific combining ability(SCA), and GCA among cultivars differed significantly. GCA in glucose and fructose content differed among parents. Punggak showed the highest GCA among Parents and Fushimi-amanaga was also higher than other cultivars. A significant positive correlation(r=0.728) was observed beween the fresh fruit weight and free sugar content in parental cultivars and F₁hybrids.

AHP를 활용한 여행사 선택에 관한 연구

박재복 東國專門大學 1999 金龜論叢 Vol.7 No.1

여가 시간의 증가 및 소득 증대에 따라 여행은 현대인의 필수적인 여가 활동중의 하나가 되고 있다. 여기에 발맞추어 여행객들의 구미에 맞는 여러 가지 여행상품을 내놓고 있는 여행사 또한 다양한 형태로 급속한 발전을 보이고 있다. 따라서 여행객들은 여행의 목적과 규모 및 기호 등에 따라 이러한 여러 형태의 여행사들 중 적절한 여행사를 선택하는 의사결정을 하게 된다. 본 연구는 여행사의 개념과 기능 및 역할에 대해 알아보고 아울러 여행객들이 여행사 선택시 고려하여야 할 사항을 파악한 후 AHP(Analytic Hierarchy Process) 분석 방법을 통해 여행객들이 최적의 여행사를 선택할 수 있는 방안을 제시하였다. 연구 결과, 전범위서비스여행사가 다른 형태의 여행사보다 서비스나 가격 측면에서 우수할 것으로 생각되므로 최적의 여행사로 선정되었다.

한 자동차 회사의 남성 사무직 근로자에서 직무스트레스와 우울, 불안 및 스트레스 증상과의 관련성

박규철,이경종,박재범,민경복,이규원 大韓産業醫學會 2008 대한직업환경의학회지 Vol.20 No.3

목적: 직무스트레스와 관련성이 있는 우울증,불안 장애 등의 정신과적 질병이 증가하고 있는 상황에서 한 자동차 회사의 남성 사무직 근로자를 대상으로 우울,불안 및 스트레스 증상의 수준을 파악하고 직무스트레스와 우울,불안,스트레스 증상과의 관련성을 살펴보고자 하였다. 방법: 연구 대상자 286명을 설문조사하였다. 직무스트레스 수준과 우울,불안,스트레스 증상을 평가하기 위해 한국인 직무스트레스 측정도구(Korean Occupational Stress Scale; KOSS)와 우울,불안,스트레스 측정도구(Depression Anxiety Stress Scale; DASS)를 사용 하였다. 설문지의 신뢰도와 타당도를 평가하였고 로지스틱 회귀분석을 시행하여 한국인 직무스트레스 측정도구의 8개 영역에 걸쳐 우울,불안 및 스트레스 증상과의 관련성을 살펴보았다. 결과: 연구 대상자에서 우울,불안 및 스트레스 증상이 있는 경우는 각각 57.7%,37.7%, 42.2%였으며,심각 하거나 매우 심각한 우울,불안 및 스트레스 증상을 보이는 경우도 각각 19.6%, 4.8%,8.0%로 조사되었다. 직무스트레스의 총점수가 높은 군에서 우울,불안 및 스트 레스 증상의 발생 비차비는 각각 4.93(95% C.I. = 2.38∼10.24),2.70(95% C.I.=1.58∼5.11). 3.53 (95% C.I.=1.90∼6.56)이었다. 직무스트레스 요인 중 조직체계가 우울 증상의 발생과 관련성이 가장 높았으며 (OR=4.83, 95% C.I.=2.43∼9.58), 직무요구도는 불안 및 스트레스 증상의 발생과 관련성이 높았다(OR=3.21, 95% C.I.=1.77-5.85; OR=4.66, 95% C.I.=2.53∼8.58). 결론: 자동차 회사의 남성 사무직 근로자에서 직무스트레스가 높은 군이 낮은 군에 비해서 우울,불안 및 스트레스 증상이 발생하는 경우가 많았다. 직무요구도와 조직 체계에 대한 개선을 통해 우울,불안 및 스트레스 증상의 발생을 감소시킬 필요가 있다. Objectives: To investigate the relationship between occupational stress and depression, anxiety, and stress symptoms among white-collar male workers in an automotive company. Methods: A cross-sectional study involving 286 white-collar male workers was conducted with the Korean Occupational Stress Scales (KOSS) and Depression Anxiety Stress Scales (DASS) questionnaire. Results: According to the DASS cut-off value (≥78 percentile scores), the prevalence of depression, anxiety and stress system was 57.7%, 37.7% and 42.2%, respectively. By logistic regression analysis, organizational system was the factor most strongly associated with depression (OR=4.83, 95% C.I.=2.43-9.58), while job demand was strongly associated with anxiety (OR=3.21, 95% C.I.= 1.77-5.85) and stress (OR=4.66, 95% C.I.=2.53-8.58). Conclusions: Occupational stress was positively associated with depression, anxiety, and stress symptoms among white-collar male workers in an automotive company. A prospective study is warranted to delineate the causal relationships between job stress and psychiatric disorders.

고추의 品質을 결정하는 成分形質에 對한 Heterosis表現과 組合能力

朴載福,韓東旭 서울市立大學校 1984 論文集 Vol.18 No.-

Since the discovery of genetic-cytoplasmic made sterility of hot pepper, many F₁varieties were come out in Korea. Thus, to clarify the inheritance mode of some important quality characters of hot pepper, heterosis, combining ability and gene actions were estimated with diallel crosses among 6 hot pepper varieties. The materials were grown in the field and were served for genetic analysis. The results of F₁diallel cross for some quality characters were as follows. 1. In carotenoid content, significant heterosis was showed, while it was not showed in capsaicin, vitamine C, sugar and free amino acid content. 2. The continuous variation was obserbed in the quality characters of hot pepper such as capsaicin, carotenoid, vitamine C, sugar, and free amino acid content. 3. Besides the additive control, some combinations showed the epistasis or complementary control of polygene, and dominant major gene seemed to be effect, too. 4. The mean squares of general combining ability (GCA) for all studied characters were highly significant, but those of specific combining ability (SCA) were not significant. 5. Capsaicin content were positively correlated with carotenoid content while it was not negatively correlated with vitamin C, sugar, and free amino acid content. 6. Fruit weight was negatively correlated with capsaicin and carotenoid content, while it was negatively correlated with vitamine C, sugar, and free amino acid content. 7. To improve the F₁ hybrid with large fruit and high capsaicin content, selection of breeding materials was indispensable problem. This work was also showed possibility to breed the high quality varieties contained a plenty of vitamine C and amino acid.

국내에서 분리된 canine parvovirus의 구조유전자 cloning과 염기서열 분석

박종현,송재영,이중복,현방훈,안수환,전무형 충남대학교 생물공학연구소 1993 생물공학연구지 Vol.3 No.-

In this study gene encoding structural proteins of a CPV isolate was cloned and saquenced to elucidate the molecular genetical properties of the canine parvoviruses isolated from the field. Six recombinant plasmids of pEP3, p1471, p2070, pEP069, pEP338 and p14711p were constructed from the map positions 22 to 98 of RF DNA to clone the VP1 and VP2 genes of CPV-V20. Sequentialy the gene comprising 3780 nucleotides were sequenced by dideoxy chain termination method. When nucleotide sequence of gene encoding the structural proteins of CPV-V20 was compared with those of other strains, CPV-N, CPV-d and CPV-780929 published previously. DNA homologies to CPV-V20 were 99.87% with CPV-NM, 99.73% with CPV-d, 96.85% with CPV-780929 AND 98.4% with FPLV-Carl, respectively. The DNA sequence data of CPV-V20 showed seven point mutations and also deletion of 135 nucleotides from the nucleotide position 4745 to 4879 located in the 3-noncoding region of CPV-N.

PUMA형 로봇 머니퓰레이터의 강인한 위치/힘 혼합제어

박재욱,이건복 崇實大學校 生産技術硏究所 1995 論文集 Vol.25 No.2

In general, the control of robot manipulator is classified into position control and force control. Position controllers give adequate performance when a manipulator is following a trajectory through space and end-effector has no contact with environment. However for most tasks performed by robot manipulator in industry, contact is made between the end-effector and manipulator's environment, so position control may not suffice. The objective of this study is to control both position of a manipulator and the contact forces generated at the hand by using a conceptually simple control law. Position and force control problem is decoupled into subtasks via taskspace formulation and inverse dynamics. Then, the position controllers are designed for the task space variables which represent tangent motion and the force controllers are designed for the task space variables which represent normal force.

電子式 船荷證券 시스템의 課題 : BOLERO 프로젝트를 중심으로 Based Mainly on BOLERO Project

박복재 여수대학교 1998 論文集 Vol.13 No.1

Recently, BOLERO Project Pilot Test has been practising for the realization of the Electronic Bill of Lading in Europe. This study investigated the Electronic Bill of Lading as a electronic substitute, by analysing the CMI Uniform Rules and the result of BOLERO Poilt Test. BOLERO Project offered safe method by introducing Trusted Third Party and Electronic Signature. However, there are two problems in introducing Electronic Bill of Lading System as followings. First, BOLERO Project is a transaction in the closed group. Therefore, it will be necessary to develop open system which is available for commercial transaction besides club members in the near future. Second, it is a problem how to link EDI of payment and EDI of Bill of lading and other shipping documents. In the near future, it is expected to implement the system containing the function of payment, by comparing the data of the electronic bill of lading and the electronic letter of credit in the documentary transaction.

EDI 商去來 通信에 관계된 法的 問題 : The Legal Problems Related to EDI Business Communication

朴福在,中忖伊知郎 湖南大學校 1996 호남대학교 학술논문집 Vol.17 No.1

Electronic commerce has become a practical reality for thousands of business throughout the world. Used for international business transactions, the technologies of electronic commerce are confronting and overcoming traditional barriers to international trade presented by geographic, lingual and cultural disparities between possible trading partners. As a result, facilitating international electronic commerce throughout the global trading community is now fairly considered a project of the highest priority on the international agenda. Both the public and private sectors of the international community have recognized that facilitating electronic commerce requires providing attention to understanding, and developing responses for, the legal issues and concerns which arise from the commercial use of the related technologies. The rapid expansion of EDI, in particular, has created considerable momentum in the interest afforded to these legal-issues. Under this circumstance, the objective of this study is to represent an exploratory effort toward presenting a functional description of the essential aspects of international electronic commerce. An attempt is made to emphasize particularly those features which have possible significance to those law reform efforts which are underway and those which can be anticipated within the foreseeable future. Electronic routines require a completely new infrastructure, operating by interchange of messages. This new pattern has to form the staring point for developing new and appropriate commercial usages in order to speed up international trade. With the emergency of EDI, the commercial patterns are entering upon the second stage of the creation of new commercial patterns to match the new electronic infrastructure. This will probably be a time-consuming procedure in itself, because commercial patterns have a tendency to live much longer than underlying reasons for their existence. But eventually practical need uses to prove its value by winning the game ; and it certainly will do this once more.