• Title/Summary/Keyword: PD 제도

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An Evaluation Study of Creativity Environmental Characteristics on Middle School of Subject Classroom System in Busan (부산시 교과교실제 운영 중학교의 창의환경특성 평가 연구)

  • Yeo, Ji-Yeon;Lee, Tae-Kyung
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.12
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    • pp.65-74
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    • 2019
  • The whole world is emphasizing 'creativity' as the core competence of the future society that global talents should have in the 21st century. Korea is also actively promoting the development of creative and convergent talents by recognizing these times and social needs. It is also required to improve the physical environment, which is an essential condition of education. As a result, the curriculum is being implemented as an institutional method for creative education since 2009, and there is a need for continuous research for effective operation of the curriculum system in relation to the establishment of the facilities of credit school system introduced from 2022 to be. The purpose of this study is to evaluate the indoor environment from the viewpoint of creative environment and to suggest the improvement direction for the improvement of the satisfaction of the education space for the students. The subjects of this study were three middle schools operated by the advanced classroom in Busan Metropolitan City. The results of this study were as follows; First, the satisfaction of autonomy and sociality was relatively high and the satisfaction of comfort was the lowest among the characteristics of creative environment. Second, it was found out that a priority should be given to ways to enhance sociality in space so as to support smooth communication and interaction between teachers, students, and students in the environmental plan for creative classroom classroom.

Independent Production Routines and Environmental Changes In 'Comprehensive Programming Television Channels' in Korea Focusing on Interviews with Independent Producers, Broadcast Writers and Individuals Involved with the TV Channels (종합편성채널의 독립제작 환경과 관행에 관한 연구 독립PD, 작가 및 종합편성채널 관계자 심층인터뷰를 중심으로)

  • Choi, Sun Young;Han, Hee Jeong
    • Korean journal of communication and information
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    • v.73
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    • pp.56-91
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    • 2015
  • This study examined changes in the independent production environment in the perspectives from flexible specialization of labor and media routines since January 2011, when comprehensive programming television channels (JTBC, MBN, Channel A, TV Chosun) emerged in Korea. In-depth interviews were conducted with thirteen individuals, including producers from independent production companies, broadcast writers, and individuals involved with these TV channels. The interview results indicated that a flexible specialization production system had been established by the comprehensive programming channels. This means that they were heavily dependent on independent producers, except in relations to their own news programs. Moreover, it was identified that the production of diverse programs could be difficult due to absurd contract practices such as those related to TV ratings and performance systems. Second, these channels have implemented some positive changes such as the payment of higher production costs and an incentive system, compared to terrestrial TV stations. However, the incentive system also helps to aggravate internal competition in the channel and also instigate contract competitions among independent companies, which can eventually result in the channels for holding exclusive rights to certain content and, hence, unfair business practices. Third, as a result of the newspaper and broadcast cross-owenership system of the comprehensive programming channels, hierarchical independent production practices can be established under the influence of newspaper proprietors and executives or managers who have previously worked for newspapers. Lastly, as a result of interviews with independent producers and individuals involved with the TV channels concerning the awareness of comprehensive programming channels, it could not be ascertained whether it is difficult to produce programs dealing with diverse items and genres, because programming autonomy has been distorted by capital or the advertisement market. In this circumstance, it is not surprising that some comprehensive programming channels mentioned that they prioritize profit and performance in programming. In conclusion, it is absolutely imperative that complementary and legal measures be implemented institutionally in order to redress the existing systematic dysfunctional routines in the independent productions of the comprehensive programming TV channels in Korea.

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Development of Phage-resistant Mutants from Lactobacillus casei (Lactobacillus casei의 Bacteriophage내성돌연맥리균분리)

  • 강국희;이경화;박기문;유익제;김영창
    • Microbiology and Biotechnology Letters
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    • v.10 no.3
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    • pp.217-222
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    • 1982
  • A lactic starter organism, Lactobaciilus casei YIT 9018 was treated with N-methyl-N'-nitro-N-nitrosoguanidine (NTG) to obtain phage-resistant mutants. Freshly grown cells suspended in citrate buffer were exposed to NTG of 50 g/m for 40 min. Among 88 colonies isolated eight colonies showed distinct resistance to phages isolated previously from milk plants. The eight new colonies showed character similar to the original L. casei except that they responded differently to phage of different sources and thus were designated as eight different mutants of L casei. From the phage resisting toaether with the fermentative ability equivalent to the mother organism the mutants may be considered to be used as starter cultures for fermented milk.

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Identification of Rhizo-bacterium Inhibiting Diaporthe citri Causing Citrus Melanose (감귤 검은점무늬병균의 생육을 저해하는 근권 세균의 분리 및 동정)

  • Nnam, Myung-Hyeun;Shin, Jin-Ho;Choi, Jae-Pill;Hong, Suck_Il;Kim, Young-Gwon;Kim, Heung-Tae
    • The Korean Journal of Pesticide Science
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    • v.13 no.4
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    • pp.332-335
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    • 2009
  • Rhizo-bacteria were isolated from organic-farming soils to select antagonistic agent for controlling citrus melanose disease. Among several antagonistic bacteria, KB-401 effectively inhibited mycelial growth of several plant fungal pathogens, including the pathogen of citrus melanose, Diaporthe citri. KB-401 also inhibited spore germination of the fungal pathogen. The tip of germ tube was swollen when conidia of D. citri were co-culture with KB-401 in PD broth amended 1% glucose. KB-401 was identified as Bacillus subtilis through the investigation for physiological characters and the analysis of nucleotide sequences of 16S rDNA.

Hydrothermal Reduction of \Co(OH)2 to Cobalt Powder Preparation (Co(OH)2로부터 수열법에 의한 코발트 분말제조)

  • Kim, Dong-Jin;Chung, Hun-Saeng;Yu Kening
    • Korean Journal of Materials Research
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    • v.9 no.7
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    • pp.675-679
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    • 1999
  • An investigation was performed to prepare spherical cobalt powder with about particle size of 400nm from aqueous cobalt hydroxide slurry under hydrothermal reduction conditions using palladium chloride as a catalyst. The reduction kinetics was in good agreement with a surface reaction core model equation. and the activation energy obtained from Arrhenius plots was 55.6 KJ/mol at the temperature range of 145 195C. Additionally, the study showed that the cobalt reduction rate is proportional to the initial hydrogen pressure with a reaction order of n=0.63. which corresponds to the gas chemisorption reaction type.

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Photocatalytic degradation of a polycyclic aromatic sulfur hydrocarbon (TiO2를 이용한 다환 방향족 유기황 탄화수소의 광분해효율 연구)

  • Jo Seoung-Hye;Lee Sang-Geun;Lee Je-Geun;Kim Il-Gyu
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2005.04a
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    • pp.163-166
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    • 2005
  • [ TiO2 ] 광촉매에 의한 분해 반응의 활성을 높이기 위한 다양한 연구가 진행되었다. 광촉매 반응은 1차 반응을 따랐으며 초기농도가 높을수록 분해효율이 감소하는 경향을 보였다. 본 연구에서는 산화제로 과산화수소가 주입되었을 경우 분해효율을 조사하였으며, 과산화수소를 주입하였을 경우가 그렇지 않은 경우보다 더 높은 분해효율을 보였다. 또한 과산화수소 주입량을 달리했을 때, 주입량이 증가할수록 효율이 높아지다가 일정량 이상에서는 오히려 효율이 감소하는 것으로 나타났다. 따라서 과산화수소 최적첨가량이 존재함을 알 수 있었다. 한편 TiO2에 전이금속을 첨가하여 전이금속이 TiO2 촉매의 분해효율에 미치는 영향을 알아보았다. Pt(0.5%)-TiO2가 가장 높은 분해효을을 보였으며, Pt첨가함량이 더 큰 Pt(2%)-TiO2는 함량이 증가했음에도 불구하고 큰 차이는 아니지만 오히려 효율이 감소하였다. 따라서 촉매표면에서 전자와 정공이 생성되었을 때, Pt가 전자를 포획함으로써 전자와 정공의 재결합율을 감소시켜 OH라디칼을 생성할 수 있는 정공이 많아져 반응효율을 증가되는 것을 알 수 있었고, 금속에 따른 최적 첨가함량이 존재함을 알 수 있다. 반면에 Pd를 첨가했을 경우는 첨가 함량에 관계없이 모두 분해효율이 오히려 감소하는 경향을 나타냈으며 이는 전이금속 고유의 성질이나, 또는 대상물질에 따라 각기 다른 경향이 존재함을 나타내며 추가적인 연구가 필요하다고 사료된다.

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디이젤 機關의 燃燒騷音에 관한 硏究

  • 박희대;이성로
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.11 no.3
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    • pp.362-367
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    • 1987
  • Cylinder pressure level is defined the value of sound pressure level derived from relations of pressure and frequency which are obtained Fourier series expansion of cylinder pressure. CPL is alone in general use in combustion analysis without regarding attenuation coefficient determined by engine structure because it is almost constant in various kinds of engines. Combustion pressure fluctuation and influence of CPL was investigated in this paper using Wiebe combustion function superposition th obtain the effect of premixed and diffusive combustion. The results are as follow. (1) Influence of combustion maximum pressure(P\submax/) on CPL is correspond with total energy per cycle well. (2) P\submax/, .DELTA.P\submax/, (dp/d.theta.)\submax/ and (d\^2/p/d.theta.\^2/)\submax/ are very effective on CPL in the range of low frequency, mid-low frequency, mid-high frequency and high frequency respectively.

A study on the polymerization of energetic prepolymer(GDNPF) (에너지를 함유한 선 폴리머인 Prepolymer(GDNPF) 제조 공정 연구)

  • Cheun, Young-Gu;Kim, Jin-Seuk
    • Journal of the Korea Institute of Military Science and Technology
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    • v.8 no.2 s.21
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    • pp.67-76
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    • 2005
  • We synthesized an energetic prepolymer(glycidyl dinitro propyl formal, GDNPF) for plastic-bonded explosive and measured its thermodynamic parameters. Glycidyl dinitro propyl formal(GDNPF) as an energetic monomer was epoxidized from allyl-2,2-dinitro propyl formal which is reacted with dinitro propyl alcohol and excess allyl alcohol, and then energetic polymer of GDNPF was polymerized by cationic ring opening polymerization. Thermodynamic parameters were obtained from the ceiling temperature(Tc) values of 1 mole monomer at reaction temperature. We varied feed rate of monomer, concentration of initiator and monomer to control molecular weight and polydispersity of prepolymer (GDNPF). The activated monomer polymerization has been executed with precisely controlled feed of GDNPF monomer to reactor in the complex state catalyst generated by BF3(C3H5)2 and 1,4-butanediol in C2H4Cl2. Number average molecular weight(Mn), polydispersity(Pd), hydroxy number and glass transition temperature(Tg) of prepolymer(GDNPF) were 2,5003,000,1.21,3,0.60.8eq/kgand2025C respectively.

A Study on the Urban Morphological Implications by Implementation of the Conjoint Building Program within Architectural Heritage Promotion Districts (건축자산 진흥구역에서 결합건축 제도의 시행이 도시 형태에 미칠 영향에 관한 연구)

  • Kim, Do-Hyeon;Choi, Choon
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.2
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    • pp.107-118
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    • 2018
  • A primary objective the Conjoint Building Program(CBP), as articulated in the legislation proceedings as to stimulate renewal and regeneration of old deteriorated districts. By allowing the transfer of development rights between two lots located within 100m radius or the same block surrounded by 12m wide streets, CBP encourages reconstruction of old buildings with low investment value by linking it to another lot that can buy its unused floor area ration. Most of the debates and studies prior to the introduction of the new legislation focused on possible abuse in financial terms, and little research has been done to illustrate possible merits of deficiencies in term of urban morphological influences. This study offers a visual prediction of the various ways CBP can influence an urban block by reshaping and reorganizing it thrown augmented development rights to assess the pros and cons of the current program.

Building Commissioning Management Framework from the Case Study of Green Building (녹색건축물인증(LEED) 사례연구를 통한 커미셔닝 관리 프레임워크 도출)

  • Jeong, Jin-Hak;Park, So-Yeon;Song, Dong-Hun;Ahn, Yong-Han
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.8
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    • pp.23-30
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    • 2018
  • A necessity of increasing the energy efficiency of the buildings is rising due to global warming and high energy demands prices. Commissioning is an effective way to increase the energy efficiency of the building and reduce maintenance costs. In this study, a case study was conducted to derive the commissioning process of green building and propose management factors that can be used in domestic commissioning projects. The case was a university renovation project that received a LEED Glod certification and conducted the enhanced commissioning. The commissioning is divided into planning, design, construction, and post-construction phases. In the planning stage, commissioning company selection, commissioning goal setting, tasks and responsibilities for each subject are set. In the design phase, preparations are made for inspection and construction steps to prevent design errors. In the construction phase, problems are solved through periodic on-site inspections. In the post-construction phase, a final report with all the details of the commissioning will be created and future maintenance strategies will be proposed. Based on the findings of this study, it will be a basis for the management factors that can be used in the implementation of domestic commissioning projects.