• Title/Summary/Keyword: Residence Characteristics

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Flow Characteristics with Inflow-Duct Types in the Reactor of an Integrated Adsorption/Catalysis Process with Bag Filters (연소 배출가스의 유입방식에 따른 백필터를 활용한 흡착/촉매 통합공정 시스템 반응기 내 유동특성)

  • Choi, Choeng-Ryul
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.31 no.5
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    • pp.425-434
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    • 2007
  • An integrated adsorption/catalytic process has been considered to treat dioxin and $NO_x$ simultaneously. The process consists of a cyclone and a reactor with nine bag filters. In this study, numerical analysis has been performed to understand flow characteristics with inflow-duct types in the reactor. To consider flue gas and activated carbon particles simultaneously, Euler-Lagrangian model was employed. Fundamental flow patterns of flue gas and activated carbon particles, pressure distribution and distribution of activated carbon have been obtained from the numerical analysis. Also trace length and residence time of flue gas, residence time of activated carbon particles have been calculated directly. Flow patterns of flue gas and activated carbon particles in the reactor were very complicated and they moved along very various paths. Therefore, their residence time in the reactor was also various. The flow characteristics in the reactor were strongly influenced by inflow-duct types. The results obtained would be effectively used to estimate the removal efficiency in the reactor once the residence time is combined with the reaction equation.

A Study on the Aesthetic Characteristics of the Interior Space Elements in Through the Analysis of Visual Perception Korea Traditional Upper Class Residence - Focused on Kangneung Sunkyojang - (시지각적 분석을 통해 본 한국 전통상류주택 내부공간 구성요소의 의장적 특성에 관한 연구 - 강릉선교장을 중심으로 -)

  • Kwon, Ki-Hwa;Choi, Sang-Hun
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2005.10a
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    • pp.65-70
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    • 2005
  • The human scale of the interior space of a korean traditional residence is normally user-friendly. And this aspect is reinterpreted and implemented in the modern structure. While our conscious awareness has become greatly westernized through the east-west exchanges, the interior of the traditional Korean residence has always reflected the people and their daily lives of the time. In this study, an attempt has been made to identify the aesthetic characteristics of the inner space elements through the analysis of visual perception inside a Korean traditional upper class residence, kangreung Sunkyojang, designated as the 5th Cultural Information Material with regards to the inherent philosophy and human scale that influenced the emotions of the Korean people. The different parts of the interior space of Anchae, and the Symmetrical of Formal, Balance of the walls give a sense of calmness, and the ornaments are used to give gaiety. The ceiling of Yeolwhadang hall give an energetic feeling and pillare are used to enhance spaciousness. In Whalejeong, by making use of similar and continuous lines, the light and darkness was controlled and the link with nature has been emphasized. Different decorations used reflect scholarly spirit.

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A Study on the Service Quality of Serviced Residence according to Consumers' Characteristics (고객 특성에 따른 서비스드 레지던스의 서비스 품질 차이 연구)

  • Kim, Young-Joong;Yoon, Hye-Hyun
    • Culinary science and hospitality research
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    • v.15 no.2
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    • pp.45-56
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    • 2009
  • The objective of this research is to provide serviced residence enterprises with the basic materials necessary for establishing a marketing strategy by surveying the recognition of service quality that differs according to the characteristics of customers using serviced residence. With 317 customers of the sample, the statistical data were treated by the frequency analysis, the reliability analysis, the analysis of searching factor, the t-test and the ANOVA. As a result, the service quality of serviced residence was divided into 5 factors of facilities, price, variety, reliability, expertise and kindness. Analyzing the difference in average for sex, nationality, marital status and natives and foreigners, it was found that there was significant difference in the variables of each factor. Considering the result of this research, it seems that serviced residence enterprises should enhance competitiveness with differentiated and specialized marketing strategies which satisfy the characteristics of customers.

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A Study on functional interrelationship of An- Daecheong in Traditional residence (전통주택 안대청의 기능적 상관성에 관한 연구)

  • 여미나;윤재웅
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 1996.11a
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    • pp.67-72
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    • 1996
  • The Purpose of this study is to examine the characteristics of the space composition of Korean traditional residence by analysing the meaning and function of traditional residence's An-Daecheong of late Chosun dynasty, as well as its interrelationship with other spaces. It can be analysed. then that such factors as the weak economic ablility of the current agricultural society and reduction of the number of family member have made the function of the An-Daecheong weak, and that such factors as westernization of life style and modernization of residence facilities have reduced the functional interrelationship of the An-Daecheong. An-Madang and Kitchen.

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A Study on the Characteristics of Male's and Female's Spatial Composition of the Upper Class Houses in Gyong-gi Province in the Late of the Chosun Dynasty (조선 말기 경기지역 상류주택에 나타난 남녀 공간구성의 특성에 관한 연구)

  • Park, Hyung-Jin
    • Korean Institute of Interior Design Journal
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    • v.22 no.5
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    • pp.225-232
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    • 2013
  • The spatial separation of male's and female's area due to the law of 'Naeoei' is one of the trademark features of residence by the building principle of 'Confucianism' in the upper class house in the late of the Chosun Dynasty. Thanks to modernized agriculture and commerce, the residence of 'Sinheung-Yangban' developed. And they were influenced by the economic and living characteristics than traditional custom. So the residence of 'Sinheung-Yangban' is very important in terms of the course of modernizing of the korean traditional residence. Researcher figures out the influences of the law of 'Naeoei' in residence and the characteristics of male's and female's field in terms of daily life with investigating the residence of 'Sinheung-Yangban' as the upper class house in the late of the Chosun Dynasty. Through this, the goal of this study is to find the properties of male's and female's field of upper class houses in the late of the Chosun Dynasty. With this study, the followings are the characteristics of male's and female's spatial composition of upper class houses in Gyong-gi Province in the late of the Chosun Dynasty. First, the traditional law of 'Naeoei' plays a primary role as the principle of building of upper class houses in Gyong-gi Province in the late of the Chosun Dynasty. With a natural result, there is a clear spatial separation as the male's and female's social role. Second, 'An-Chae' and 'Sarang-Chae' as male's and female's living space are separated physically, but real living life tends to be syntagmatically made with 'An-Madang' as the center. Third, spatial integration of 'An-Madang' as the center results in the development of architectural connection factors of 'An-Chae' and 'BaKat-Chae' adjoining 'An-Madang', facing 'Toei-Gan', 'Maru', and 'door'. Forth, the boundary of male's and female's areas is relatively clear between dwellers and visitors, but on the other hand, the separation of male's and female's spaces between family members has little significance.

Acoustic Characteristics of Female Senior Citizens in Communities: The Effects of Residence and Depression (지역사회 여성 노인 음성의 음향학적 특성: 거주지 및 우울감의 영향)

  • Hwang, Jaeho;Kim, JungWan
    • Phonetics and Speech Sciences
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    • v.4 no.4
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    • pp.155-162
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    • 2012
  • The population of Korea is ageing as the number of elderly people increases due to improvements in health care and diet. Accordingly, it is expected that interest in how to live actively during the years after retirement and how to communicate effectively will increase the demand for voice improvement methods and technology. However, the criteria to evaluate the voice strength and characteristics of the elderly are lacking. In this study, we analyzed the acoustic characteristics of elderly women living in the community according to residential status and mental health status (e.g. depressive mood). Accordingly, we selected women (n=63) above the age of 65 age who were living in the Seoul metropolitan area and Daegu Gyeongbuk. The selected subjects were divided into two groups: a normal speaker group (n=40) and a speaker group comprised of those suffering from depressive mood (n=23). This study analyzed the voice characteristics of subjects based on collected data through the sustained phonation of the vowel /a/. It was shown that there were differences among MPT, F0, Jitter, Shimmer and NHR depending on location of residence but no difference with regard to depressive mood. Therefore, we must consider location of residence in elderly as the key factor in demonstrating the voice norms of seniors.

A Case Study of Rural House Remodelling with Traditional Residence Factors (전통주거공간요소를 활용한 농촌주택 리모델링 현장적용 사례연구)

  • Kim, Myo-Jung;Kim, Sang Bum
    • Journal of Agricultural Extension & Community Development
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    • v.14 no.2
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    • pp.417-436
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    • 2007
  • The purpose of this study was to prepare for developing rural house remodeling techniques utilizing the traditional residence factor. The study was carried out through both literature research and on-site research. The traditional residence space factors were identified through literature research and on-site research was carried out through analysis of the rural house remodeling cases. The results of this study was as follows ; 1) Traditional space factors were derived by literature research i. e. space arrangement (topography, direction, plane arrangement), exterior factors; walls, madang, interior factors; roofs, ondol, floors, colours. 2) The traditional residence factor utilizations of remodeling were applied a result through investigation case and analysis. Five rural houses in Namsa village, Danseong-myeon, Sangcheong-gun, Gyeongsangnam-Do were analyzed as remodeling cases including traditional residence factors. There were limitation of budget problems and material selection in the traditional residence factor utilizations of remodeling. The researchers have chosen target rural houses which applied for traditional residence factors to remodel the rural houses, and the most important factor to consider was harmony with rural unique characteristics. The researchers suggested considerations should be placed on development with energy savings and convenience in rural house remodelling.

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The Effect of Residence Time and Heat Loss on NOx Formation Characteristics in the Downstream Region of CH4/Air Premixed Flame (CH4/Air 예혼합화염의 하류영역에서 체류시간 및 열손실에 의한 NOx의 생성특성)

  • Hwang, Cheol-Hong;Hyun, Sung-Ho;Tak, Young-Jo;Lee, Chang-Eon
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.31 no.1 s.256
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    • pp.99-108
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    • 2007
  • In this study, the NOx formation characteristics of one-dimensional $CH_4$/Air premixed flame using detailed-kinetic chemistry are examined numerically. The combustor length and the amount of heat loss are varied to investigate the effect of residence time and heat loss on the NOx formation in a post-flame region. In the flame region, NO is mainly produced by the Prompt NO mechanism including $N_2$O-intermediate NO mechanism over all equivalence ratios. However, thermal NO mechanism is more important than Prompt NO mechanism in the post-flame region. In the case of adiabatic condition, the increase of combustor length causes the remarkable increase of NO emission at the exit due to the increase of residence time. On the other hand, NO reaches the equilibrium state in the vicinity of flame region, considering radiation and conduction heat losses. Furthermore the NO, in the case of $\phi$=1.2, is gradually reduced in the downstream region as the heat loss is increased. From these results, it can be concluded that the controls of residence time and heat loss in a combustor should be recognized as an important NOx reduction technology.

Changes in the Concentrations and the Characteristics of Organic Carbon After Entrance into Dam Reservoirs (댐저수지 유입 후 유기탄소 농도 및 성상 변화)

  • Shin, Jae-Won;Lee, Bo-Mi;Hur, Jin;Park, Ji-Hyung
    • Journal of Korean Society on Water Environment
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    • v.29 no.1
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    • pp.81-87
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    • 2013
  • Changes of organic carbon after the entrance into dam reservoirs were investigated using water samples collected in May, September, and October in 2010 from the inflow sites and the outlets of four selected dam reservoirs-Soyang, Chungju, Chungju regulation, and Uiam. Increase of refractory dissolved organic carbon (R-DOC) was observed only for large dam reservoirs with long residence times whereas the trend was not found for relatively small reservoirs. The effects of residence times on organic carbon changes were further confirmed by significant positive correlations between monthly residence times and the relative increase of either dissolved organic carbon (DOC) or R-DOC concentrations. Comparison of spectroscopic characteristics of DOC revealed that the changes in the large reservoirs in May might result from in-lake processes. The inflow of terrestrial sources of DOM during storms appears to largely affect the DOC quality of the large reservoirs for the rest of the sampling periods. The mechanism, however, did not fully explain the behaviors of DOC for the small sized reservoirs. Our combined results suggested that both residence time and the input of allochthonous carbon sources might substantially influence the quantity of DOC as well as its quality in dam reservoirs.

Numerical Studies of Flow Characteristics and Particle Residence Time in a Taylor Reactor (테일러 반응기의 유동특성과 입자 체류시간에 관한 수치적 연구)

  • Lee, Hyeon Kwon;Lee, Sang Gun;Jeon, Dong Hyup
    • Applied Chemistry for Engineering
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    • v.26 no.1
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    • pp.67-73
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    • 2015
  • Using a computational fluid dynamics technique, the flow characteristics and particle residence time in a Taylor reactor were studied. Since flow characteristics in a Taylor reactor are dependent on the operating conditions, effects of the inlet flow velocity and reactor rotational speed were investigated. In addition, the particle residence time of $LiNiMnCoO_2$ (NMC), which is a cathode material in lithium-ion battery, is estimated in the Taylor vortex flow (TVF) region. Without considering the complex chemical reaction at the inlet, the effect of Taylor flow was studied. The results show that the particle residence time increases as the rotating speed increased and the flow rate decreased.