• 제목/요약/키워드: Small city

검색결과 1,466건 처리시간 0.03초

Application of machine learning and deep neural network for wave propagation in lung cancer cell

  • Xing, Lumin;Liu, Wenjian;Li, Xin;Wang, Han;Jiang, Zhiming;Wang, Lingling
    • Advances in nano research
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    • 제13권3호
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    • pp.297-312
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    • 2022
  • Coughing and breath shortness are common symptoms of nano (small) cell lung cancer. Smoking is main factor in causing such cancers. The cancer cells form on the soft tissues of lung. Deformation behavior and wave vibration of lung affected when cancer cells exist. Therefore, in the current work, phase velocity behavior of the small cell lung cancer as a main part of the body via an exact size-dependent theory is presented. Regarding this problem, displacement fields of small cell lung cancer are obtained using first-order shear deformation theory with five parameters. Besides, the size-dependent small cell lung cancer is modeled via nonlocal stress/strain gradient theory (NSGT). An analytical method is applied for solving the governing equations of the small cell lung cancer structure. The novelty of the current study is the consideration of the five-parameter of displacement for curved panel, and porosity as well as NSGT are employed and solved using the analytical method. For more verification, the outcomes of this reports are compared with the predictions of deep neural network (DNN) with adaptive optimization method. A thorough parametric investigation is conducted on the effect of NSGT parameters, porosity and geometry on the phase velocity behavior of the small cell lung cancer structure.

학교담장허물기에 관한 의식조사 연구 -원주지역 5개 학교담장에 관한 의식조사를 중심으로- (A Survey Study on the Consciousness of the School Fence Removal -focused on the consciousness of the five schools on fence removal, in Wonju city-)

  • 이은희;서덕석;최재석
    • 교육녹색환경연구
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    • 제9권1호
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    • pp.11-22
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    • 2010
  • Recently, the necessity of open spaces is increased greatly in the city. But in many reasons, open spaces are diminishing gradually in the existing cities. It is more difficult to keep that space because of expensive land price, and the interests between the neighbors. To solve this problem, the local governments tries to change the street system more convenient to the pedestrian by adapting no vechile street system during some specific time. In this point of view, the street which include fence of school, house, and apartment can be the open space. Especially, removal of the school fence can be a useful solution providing open spaces to small cities suffering from lack of open spaces. In this researching background, several schools in Wonju were selected in this research, some has already been opened, and others yet. Opinions of students, presidents of these schools, and citizens are surveyed about removal of fence. In the basis of this result, we deduce problems followed by removing the fence, and reflect it in the plan of opening the fence to present the guidance to cross over the functional limitation of the fence and use it as a open space.

친환경 소하천의 수리적 안정성 분석에 관한 연구 (A Study on Hydraulic Stable Analysis of The Natural Small River)

  • 김태경;이경훈;선병진;최천호
    • 환경영향평가
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    • 제16권3호
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    • pp.187-194
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    • 2007
  • It started road constructions around river in 1990s. These maintenances concentrate on city river. Because river lives no living things and men don't come near there. But in spite of these river environment go to rack, river maintenances still keep on using preexistence method since 1990s. Only a part of city river environment maintenances consider environmental ability of passive river, river maintenance of a purpose of flood control still don't consider in the concrete. Because propulsion device that consider environment ability of passive river and possible application techniques don't complete. In accordance, A natural river maintenance needs absolutly a series of river projects. Because a natural river maintenance prevents a damage of environment ability. This study is to assume the flood really happened and to carry out the flood damage simulation needed in overflow simulation about the inundated zone. Also, This study examine unstable part about the hydraulic characteristic as velocities, stream power, shear, hydraulic depth, flow area in basin. And this study applied the HEC-RAS(river analysis system) model to predict flood overflow in youngsan river basin. Project flood is used the return period 100 year and inputed data that was calculated in intensity figures of illumination.

소도시 온천 관광객 서비스 질 평가모형개발 - 수안보 온천을 중심으로 - (A Study on the Development of Evaluation Model for Hot Spring Water Tourist Service Quality in Small City - Focused on the Suanbo Hot Spring Water -)

  • 윤장열;진장원;김태호
    • 한국농촌건축학회논문집
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    • 제11권2호
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    • pp.29-36
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    • 2009
  • The recently research shows that the many tourists of Suanbo hot spring waters haven't satisfied the service. These reasons due to that they did not properly consider the satisfaction of tourists' services and index. However, satisfaction level of hot spring waters tourists is interacted complicatedly with various factors, the interactions are not easily identified. A structural equations model is adopted to capture the complex relationships among variables. In the model estimation, we used 140 survey data of Suanbo hot spring waters tourists. The SEM with several factors mentioned above as exogenous variables shows that they have complex and strong relationships. As results of a SEM, it was shown that variables influencing in pleasance are surrounding scenery, clean condition inside hot springs and congestion for use in satisfaction level most. Secondly, in case of kindness, attitudes of employees influence in satisfaction level most, followed by attitudes of residents and kindness of employees. Thirdly, in case of information, it was shown guidance on internal roads influencing in satisfaction level most, followed by guidance on owner drivers, guidance on surrounding tourist attractions and guidance on public transportation. Finally, a variable influencing in accessibility most is satisfaction level of public transportation.

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소도시 문예회관 계획에 대한 연구 - 홍성군 광천복지문예회관을 중심으로 - (A Study on the Planning of Cultural Art Center in Small City)

  • 한종구;장동민
    • 한국농촌건축학회논문집
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    • 제11권1호
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    • pp.1-8
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    • 2009
  • The study performed literature survey and research on the actual condition of cultural facilities for planning a reasonal architectural plan of being prearranged Gwangcheon cultural art center erection at the old central district of Gwangcheon-Eup(town) in Hongseong-Gun(County), Chuncheongnam-Do(province). It was verified that the law and regulations related with cultural art facilities did not make clear statement of the concept of cultural art center and classified it as a public performing place of a kind of performance facilities. The types of cultual facilities could be classified as performance facilities, libraries, regional cultural welfare facilities, cultural promotion and instruction facilities and they were studied respectively. The main functions of cultural art center was studied with art enjoyment function and art creation function. Through the research on the actual condition of cultural facilities, it was found that there were 12 cultural welfare facilities in Hongseong-Gun(county) however there was no cultural facilities in Gwangcheon-Eup(town) except 1 libraries. So the building of Gwangchoen cultural art center is needed. The location Propriety analysis is conducted and proved appropriated. On the basis of the above studies, the direction of planning, conception of Plan and facilities program were conceived and finally the architectural plans were proposed.

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1960년대 청주 도심경관고 -도심 복원모델의 제작을 통하여- (A Study on Cheongju Townscape in the 1960s through the Restoration Model)

  • 김태영;오성진
    • 한국농촌건축학회논문집
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    • 제20권4호
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    • pp.19-29
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    • 2018
  • This study examines the 1960s' townscape through the small-scale restoration model in Seongan-dong and Jungang-dong, Cheongju, one of the historical cities in South Korea. In the 1960s, Jungang-dong actively was developed outside the north gate of Cheongju castle, and Cheongju's townscape was changed by the relocation of railway station and construction of city hall. In the streetscape, the new roads, the east-west Sajik-ro and north-south Sangdang-ro were opened instead of old railroads, and they clarified the typical grid road system with the existing Seongan-ro, which connected north and south gate of the old castle. In the buildingscape, city hall was built in front of the railway station outside the north gate of old castle, and had a great effect on the existing buildings and facilities. The public, educational, and commercial buildings had been replaced by reinforced concrete, and the cement brick & block public housing were distributed widely. But the existing dwelling areas, located in the inside of old castle and outside south gate, showed the low and dense townscape, sustaining the former streets and building types.

사점굽힘시험법을 이용한 이종절연막 (Si/SiO2||Si3N4/Si) SOI 기판쌍의 접합강도 연구 (Direct Bonded (Si/SiO2∥Si3N4/Si) SIO Wafer Pairs with Four-point Bending)

  • 이상현;송오성
    • 한국재료학회지
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    • 제12권6호
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    • pp.508-512
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    • 2002
  • $2000{\AA}-SiO_2/Si(100)$ and $560{\AA}-Si_3N_4/Si(100)$ wafers, which are 10 cm in diameter, were directly bonded using a rapid thermal annealing method. We fixed the anneal time of 30 second and varied the anneal temperatures from 600 to $1200^{\circ}C$. The bond strength of bonded wafer pairs at given anneal temperature were evaluated by a razor blade crack opening method and a four-point bonding method, respectively. The results clearly slow that the four-point bending method is more suitable for evaluating the small bond strength of 80~430 mJ/$\m^2$ compared to the razor blade crack opening method, which shows no anneal temperature dependence in small bond strength.

Drinking Water Usage with Riverbed water and Groundwater

  • Kim, Il-Bae;Lee, Soo-Sik;Choi, Yun-Yeong;Suh, Jung-Ho;Lee, Hak-Sung
    • 한국환경과학회:학술대회논문집
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    • 한국환경과학회 2003년도 International Symposium on Clean Environment
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    • pp.151-154
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    • 2003
  • With estmating drinking water demands of Ulsan city, the amount would be increased from 523,000ton/day in 2006 to 635,000 ton/day in 2016. Also, the dependence of Nakdong River on the Ulsan city as a source of drinking water will be very high up to 54.4% of total drinking water demands. Small-scale drinking water dam is no economical because of excessive construction cost and long construction period. However, development of riverbed and ground water of existing rivers is more economical than that of small-scale drinking water dam. In this study, to utilized Dongchun River as a drinking water resource, Modflow model was used to predict the amount of riverbed and ground water of Dongchun River basin. As a result, available amount of riverbed water was assumed in 6,000 ton/day by worst case (when perfect dry stream) and in case of ground water, it was assumed in 17,800 ton/day.

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대도시 서민 주거지 환경실태와 주민의식 - 대구시 일부 지역을 대상으로 - (Residents' Perception on Living Environment in Metropolitan Area - The Case of Daegu Metropolitan City -)

  • 김한수;장몽현
    • 한국주거학회논문집
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    • 제22권4호
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    • pp.113-120
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    • 2011
  • The primary purpose of this study is to suggest policy directions for redevelopment project based on analysis of residents' perception on needs and reasons of redevelopment, and development type in old settlements in Daegu Metropolitan City. The main findings are follows. First, the study area is short of public space such as road and parks, occupied by old single detached houses with small parcel. The living environment of the area consist with many 20 years or older two story houses is very poor. Second, most of residents (58.5%) consider economic factors or cheaper rent more serious than other factors such as convenience, amenity, and education facilities. Third, residents want new housing construction even though explanatory power of trash collection, bad smells, privacy is very high in residents' satisfaction. Fourth, most of residents (88.8%) agree redevelopment and show strong preference to high-density apartment construction through demolish-and-development type of redevelopment approach. They are willing to agree the parcellevel redevelopment if governments provides economic supports and temporary settlements. This finding suggests very important policy implications for current government efforts to improve living environment.

소도시 노인요양시설 요양노인의 생활행위와 공간이용 사례 연구 (A Case Study on the Living Activities and the Use of Spaces of the Recuperating Elderly in Nursing homes at Small City)

  • 양금석
    • 한국농촌건축학회논문집
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    • 제12권2호
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    • pp.109-116
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    • 2010
  • The purpose of this study is to clarify the actual condition of the daily living activities of the elderly with dementia in nursing homes. The thorough investigation and observation works were made from the view points of daily living behaviors and behavioral places of the recuperating elderly with dementia in nursing homes. This article discusses about the basic characteristics of the elderly and the actual condition of the daily living activities of the elderly with dementia in 3 nursing homes. The results of this study are summarized as follows; There is no wide difference between skilled nursing facilities on the characteristic of living behaviors of the elderly with dementia. Daily living activities and the use of spaces are largely influenced by the daily program and the operation policy of each nursing homes in addition to human relationship of the elderly with dementia. Common spaces such as day room, dining room plays an important role for their daily living activities, because that most of the elderly with dementia stay long during daytime. Layout of each private room and common space seems very crucial point in designing these facilities, in order to enable demented people to live their lives more independently.