• Title/Summary/Keyword: necessity measure

Search Result 234, Processing Time 0.03 seconds

A Study on the Feasibility analysis model for Housing Environment Improvement Project of Depressed region - Focused on the project by the public sector - (낙후지역 주거환경개선사업 타당성분석 평가모델 연구 - 공공(公共) 시행사업을 중심으로 -)

  • Choi, Jung-Min;Choi, Chan-Hwan
    • Journal of the Korean Institute of Rural Architecture
    • /
    • v.14 no.1
    • /
    • pp.83-90
    • /
    • 2012
  • The purpose of this study was to set and analyze the standard model for prioritizing and deciding to take part in housing environment improvement project in the perspective of the public sector. The results of this study were as follows. The location competitiveness, potential demand, marketability and competitive price, etc were selected by assessment indicators. And Various indicators, including of the size of the area, public transportation, accessibility, convenience of living and the influx of the population, were used by weights indexes. The profit of local residents and the public promoter, variability of earnings, sensitivity analysis and the ratio of money in reserve, etc were also established as detailed indexes for the profitability and business risk analysis. To analyze the cash flow of the project process and review the necessary capital in advance, the payback, total working expenses, gearing ratio and sensitivity of a risk, etc were also set as additional detailed indexes. Lastly, considering it is quasi-public projects, the measure to protect tenants, necessity need of redevelopment and local government's will were additionally used by indexes. And Points were distributed on the importance of each index and scored out of 100. It will allow for the public project promoter to decide rationally whether to come in on the project. The public project promoter like the Korea Land and Housing Corporation will be able to make use of various indexes are based on this study to make decision whether joining the housing environment improvement project in depressed region.

A Dynamic Update Engine of IPS for a DoS Attack Prevention of VoIP (VoIP의 DoS공격 차단을 위한 IPS의 동적 업데이트엔진)

  • Cheon, Jae-Hong;Park, Dea-Woo
    • KSCI Review
    • /
    • v.14 no.2
    • /
    • pp.235-244
    • /
    • 2006
  • This paper attacked the unknown DoS which mixed a DoS attack, Worm and the Trojan horse which used IP Source Address Spoofing and Smurf through the SYN Flooding way that UDP, ICMP, Echo, TCP Syn packet operated. the applications that used TCP/UDP in VoIP service networks. Define necessity of a Dynamic Update Engine for a prevention, and measure Miss traffic at RT statistics of inbound and outbound parts in case of designs of an engine at IPS regarding an Self-learning module and a statistical attack spread. and design a logic engine module. Three engines judge attack grades (Attack Suspicious, Normal), and keep the most suitable filtering engine state through AND or OR algorithms at Footprint Lookup modules. A Real-Time Dynamic Engine and Filter updated protected VoIP service from DoS attacks, and strengthened Ubiquitous Security anger, and were turned out to be.

  • PDF

Analysis of Hydraulic Characteristics of Spillway using Hydraulic Model Experiments and Numerical Analysis (수리모형실험 및 수치해석을 통한 여수로 수리특성 분석)

  • Lee, Jong-Kyu;Lee, Jai-Hong;Kim, Joo-Young
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2008.05a
    • /
    • pp.1818-1822
    • /
    • 2008
  • Generally, not only in order to design three dimensional hydraulic structures such a spillway and to investigate the hydraulic phenomena concerning hydraulic facilities, but also to grasp shape and stability, we simulate actuality phenomenon through hydraulic model experiments. However, it requires too much times, expense and space to perform hydraulic model experiments, as well as it is very difficult to measure reduced scale of actual hydraulic structures. Besides, surface tension can exert fair effect in experiment result, and occasionally an experiment of various case is impossible actually. Therefore, there is necessity to draw proper early result through numerical analysis, and if decide the case of a hydraulic model experiment through the numerical analysis and compare the result, finally economical and reasonable design hydraulic structures are available. This study performs numerical analysis of overflow spillway and an experimental study of hydraulic model tests to design the optimal spillway and suggest a better design to improve hydraulic conditions. From the measurements, revised designs for an hydraulic structure are suggested and consequent improvement effects by the new design are also investigated.

  • PDF

The Current Status and Tasks of Rockfish Restocking Project based on Economic Performance Evaluation (볼락 방류사업의 현황 및 과제 - 경제효과분석을 중심으로 -)

  • Song, Jung-Hun;Hong, Jae-Bum
    • The Journal of Fisheries Business Administration
    • /
    • v.40 no.3
    • /
    • pp.69-88
    • /
    • 2009
  • This research was as part of restocking project conducted until 1986. The necessity of its economic and scientific verification on restocking project increased. The economic analysis of this project was intended to measure its effectiveness of rockfish restocking throughout certain water areas. The rockfish restocking in 2008 was carried two regional governments of Gyeongnam and Busan. 3-year average annualized performance is 3.76 million rockfish restocked and 940 million won invested. As Gyeongnam restocked 3.62 million rockfish and invested 890 million won, most of rockfish stocking accomplished in Gyeongnam. The public shipment was the 3-year average amount was about 400 tons. Each Suhyup shipment as follows; TongYong 66.6 tons, Namhae 23.6 tons, Samcheonpo 17.2 tons; Yeosu 13.3 tons, Geoje 4.7 tons, Goseong 3.1 tons, Hadong 1.0 tons. The private shipment was assessed by the interview of relevant market participations. The high percent areas of public ship were Nemaha, Goseong 90% and Geoje 80% or more. Hadong and Samcheonpo were about 50%. TongYong was 10% and the lowest. The private shipment was calculated using the percentage of private shipment surveyed. The total amount of private shipment was 4.8 billion, where 4.5 billion was TongYong, where most of private shipment is being made. The positive economic benefit occurred when the percent of restocked is over 15% in the overall catch. The percentage of restocked investigated with genetic test was 58.2%. With 58.2% ratio of restocked, there was 3.8 times economic benefit according to approximately 3.6 billion won. Economic effects were highly significant. As catch increased according restocking, joint market commission increased. Joint market commission was calculated as total restocked shipment multiplied by the ratio of commission, the calculated commissions were as follows; Hadong 5.0%, Geoje 4.8%, Goseong 4.8%, Namhae 4.8%, Samcheonpo 4.3%, Yeosu 4.3%, TongYong 4.0%. According to calculation results, annual commission fee of ₩60,000,000 was raised during 2006~2008. The fishing catch bulk for entertainment significantly increased in sea area carried with mass restock.

  • PDF

A Dynamic Update Engine of IPS for a DoS Attack Prevention of VoIP (VoIP의 DoS공격 차단을 위한 IPS의 동적 업데이트엔진)

  • Cheon, Jae-Hong;Park, Dea-Woo
    • Journal of the Korea Society of Computer and Information
    • /
    • v.11 no.6 s.44
    • /
    • pp.165-174
    • /
    • 2006
  • This paper attacked the unknown DoS which mixed a DoS attack, Worm and the Trojan horse which used IP Source Address Spoofing and Smurf through the SYN Flooding way that UDP, ICMP, Echo, TCP Syn packet operated, the applications that used TCP/UDP in VoIP service networks. Define necessity of a Dynamic Update Engine for a prevention, and measure Miss traffic at RT statistics of inbound and outbound parts in case of designs of an engine at IPS regarding an Self-learning module and a statistical attack spread, and design a logic engine module. Three engines judge attack grades (Attack, Suspicious, Normal), and keep the most suitable filtering engine state through AND or OR algorithms at Footprint Lookup modules. A Real-Time Dynamic Engine and Filter updated protected VoIP service from DoS attacks, and strengthened Ubiquitous Security anger, and were turned out to be.

  • PDF

A Study on Student Satisfaction with Educational Environment, Innovation Configuration, and Intervention Demand of Students in Culinary Practice Education - Focusing on University Students Majoring in Culinary Arts - (조리교육 만족도 및 요구도에 관한 연구 - 4년제 조리전공 대학생들을 중심으로 -)

  • Lee, Jeong-Ae
    • Culinary science and hospitality research
    • /
    • v.19 no.4
    • /
    • pp.77-93
    • /
    • 2013
  • This study examines the university students majoring in culinary arts to survey the recognition levels of culinary arts education for the purpose of searching for a development plan for culinary education. A survey was conducted to 407 students in a cooking and food service program. To achieve the purpose of this study, SPSS 17.0, a statistics program, was used for a descriptive analysis, a frequency analysis, and a factor analysis. In this study, we have developed a device to measure educational service quality which can be applied to the place of higher education, and factors that determine educational service quality are dragged through this device. In addition, this research identifies which statistically significant factors play a part in overall satisfaction and interprets 26 quality attributes using importance-satisfaction transformed index. The interest and necessity of culinary arts education was very high while the performance degree was considered insufficient. In conclusion, if chances are given to display achievement of desire self-directly through increasing practical training, development and application of various programs, operation of open practice classes and curriculum organization reflecting social changes in the education courses, the culinary arts education will be considered to be more vitalized.

  • PDF

Study on Reality of Field Practice and Improvements by Students of Dep. of Emergency Medical Technology (응급구조과 학생 현장실습의 실제와 개선방안 연구)

  • Kwon, Hayrran
    • The Korean Journal of Emergency Medical Services
    • /
    • v.6 no.1
    • /
    • pp.15-26
    • /
    • 2002
  • As a result of analyzing problems in field practice and its effects, the following conclusions can be obtained. Man students were more satisfied with their choice of this department than woman students and woman students recognized the importance of hospital practice although they felt the need of fire fighting station practice and man students felt the necessity of hospital practice, but they answered the fire fighting station practice was important. Departments of field practice are emergency and nurse departments in hospitals and emergency aid section in fire fighting stations. And it is found that field practice was performed well in relation to major subject. Areas of practice included emergency room, operation room and extensive cure unit and the experience of ambulance was more in fire fighting station than in hospital. Clinical guidance of professor was preferred to once a week and the students answered they felt satisfaction with practice through conference. Answer that field practice was helpful in understanding class was very high as 96.8% and its connection with employment was low as 12.8%. It is found that a proper timing of field practice was winter vacation for hospital practice after completing the second semester of the first year and summer vacation for fire fighting station practice after the first semester of the second year. The most difficult department in field practice was nurse department in hospital because 'respondents were practice students' and administrative department in fire fighting stations because 'they lacked recognition of paramedic'. In making practice diary, 'describing measure results' was difficult most and the respondents wanted to keep the diary in their custody.

  • PDF

Region-based Content Retrieval Algorithm Using Image Segmentation (영상 분할을 이용한 영역기반 내용 검색 알고리즘)

  • Rhee, Kang-Hyeon
    • Journal of the Institute of Electronics Engineers of Korea CI
    • /
    • v.44 no.5
    • /
    • pp.1-11
    • /
    • 2007
  • As the availability of an image information has been significantly increasing, necessity of system that can manage an image information is increasing. Accordingly, we proposed the region-based content retrieval(CBIR) algorithm based on an efficient combination of an image segmentation, an image texture, a color feature and an image's shape and position information. As a color feature, a HSI color histogram is chosen which is known to measure spatial of colors well. We used active contour and CWT(complex wavelet transform) to perform an image segmentation and extracting an image texture. And shape and position information are obtained using Hu invariant moments in the luminance of HSI model. For efficient similarity computation, the extracted features(color histogram, Hu invariant moments, and complex wavelet transform) are combined and then precision and recall are measured. As a experimental result using DB that was supported by www.freefoto.com. the proposed image retrieval engine have 94.8% precision, 82.7% recall and can apply successfully image retrieval system.

Face and Its Components Extraction of Animation Characters Based on Dominant Colors (주색상 기반의 애니메이션 캐릭터 얼굴과 구성요소 검출)

  • Jang, Seok-Woo;Shin, Hyun-Min;Kim, Gye-Young
    • Journal of the Korea Society of Computer and Information
    • /
    • v.16 no.10
    • /
    • pp.93-100
    • /
    • 2011
  • The necessity of research on extracting information of face and facial components in animation characters have been increasing since they can effectively express the emotion and personality of characters. In this paper, we introduce a method to extract face and facial components of animation characters by defining a mesh model adequate for characters and by using dominant colors. The suggested algorithm first generates a mesh model for animation characters, and extracts dominant colors for face and facial components by adapting the mesh model to the face of a model character. Then, using the dominant colors, we extract candidate areas of the face and facial components from input images and verify if the extracted areas are real face or facial components by means of color similarity measure. The experimental results show that our method can reliably detect face and facial components of animation characters.

Study on the Appropriate Spatial unit to Measure Biodiversity Using National Ecosystem Survey Data (전국자연환경조사 자료를 이용한 생물다양성 정량화의 적정공간단위 연구)

  • Lee, Kyung-Il;Hwang, Jin-Hoo;Jang, Rae-Ik;Ryu, Ji-Eun;Jeon, Seong-Woo
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.21 no.5
    • /
    • pp.29-37
    • /
    • 2018
  • Biodiversity refers to the diversity of organisms originating from all sources, including terrestrial ecosystems, aquatic ecosystems, and complex ecosystems and it is considered to be the standard of the area to be preserved and protected. So The Importance of environmental assessment for biodiversity conservation is increasing and International efforts to quantify biodiversity and to develop indices have been made, but there are insufficient researches on the use of biomass databases and their quantification in Korea. In this study, the biodiversity map was constructed using the 3rd National Ecosystem Survey Mammal Data with three spatial units(Administrative Area, 1:5,000 index map, hexagonal lattice). and the difference of map constructed by spatial unit was suggested to help research on quantification and evaluation of biodiversity in the future. As a result of the study, biodiversity index for the same area varied according to the spatial unit and overall average and standard deviation were different too. Therefore it is necessary to utilize appropriate spatial unit considering the suitability and purpose of quantification rather than using specific unit. It also showed the necessity of establishing a standard for biodiversity index as a result of comparative analysis with ecosystem and nature map. Based on this research, comprehensive efforts should be made for the sustainable development of the country through further research and institutional improvement for quantification and evaluation of biodiversity, set standards.