• Title/Summary/Keyword: Scale-up experiment

Search Result 257, Processing Time 0.032 seconds

The Impression Effect on Clothing Styles and Make-up Types of Woman in Her Twenties (20대 여성의 의복 스타일과 메이크업 유형에 따른 인상 효과)

  • Kim, Jae-Sook;Song, Min-Jung
    • The Research Journal of the Costume Culture
    • /
    • v.15 no.5
    • /
    • pp.863-874
    • /
    • 2007
  • The propose of the study was to evaluate impression effects and likeness of clothing styles and make-up types. The stimuli were composed of 4 clothing styles(base, natural, romantic, classic) and 4 make-up types(no make-up, natural, romantic, classic). The subjects were 512 male and female university students in Daejeon and Chungnam province. The study consisted of a survey and quasi- experiment. The experimental materials used for this study were 16 stimuli, 32 hi-polar adjectives, and likeness scale were composed of 7-point Likert type scales. As a result, the clothing styles and make-up types effected on the 4 impressional dimensions: grace, evaluation, salience, and dynamism. The clothing styles effected on grace, salience and dynamism dimension and the effect of dynamism dimension was the most powerful among the dimensions. The make-up types effected on all of the 4 impression dimensions and the effect of salience dimension was the most powerful among the dimensions. The interaction effects existed between the clothing styles and make-up types in salience dimension. The likeness showed significant difference only on the make-up types. The effect of grace dimension was the most powerful among the dimensions. The main reason that make-up effect appears greatly could be analyzed into that clothes color is controlled by white. The results suggest the necessity of succession study about the effect of clothes color.

  • PDF

Comparative Study on Recovery of Nickel by Ion Exchange and Electrodialysis (이온교환과 전기투석을 이용한 니켈회수의 비교연구)

  • Sim, Joo-Hyun;Seo, Hyung-Joon;Seo, Jae-Hee;Kim, Dae-Hwan
    • Journal of Korean Society of Environmental Engineers
    • /
    • v.28 no.6
    • /
    • pp.640-647
    • /
    • 2006
  • It is difficult to treat wastewater involved in heavy metal in electroplating industry. Recently, many industries adopt the clean technology to prevent production of pollutant in the process or reuse after the appropriate pollutant treatment. In this study, we estimate the ability of recovery of nickel and the efficiency using lab-scale ion exchange and electrodialysis process with electroplating industry wastewater. In the ion exchange experiments with 5 types of resin, the result showed that S 1467(gel-type strong acidic cation exchange resin) has the highest exchange capacity. And it showed that the 4 N HCl has the highest in regeneration efficiency and maximum concentration in the regeneration experiments with various kinds md concentration of the regenerant. During the electrodialysis experiments, we varied the current density, the concentration of electrode rinse solution, the flow rate of concentrate and electrode rinse solution in order to find the optimum operating condition. As a result, we obtained $250A/m^2$ of current density, 2 N $H_2SO_4$ of concentration of electrode rinse solution, 30 mL/min of flow rate of concentrate and electrode rinse solution as the best operating conditions. We performed the scale-up experiments on the basis of ion exchange and electrodialysis experiments. And we obtained the experimental result that exchange capacity of S 1467 was 1.88 eq/L resin, and regeneration efficiency was 93.7% in the ion exchange scale-up experiment, we also got the result that concentration and dilution efficiency increased, and current efficiency kept constant in the scale-up experiments.

AutoScale: Adaptive QoS-Aware Container-based Cloud Applications Scheduling Framework

  • Sun, Yao;Meng, Lun;Song, Yunkui
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.13 no.6
    • /
    • pp.2824-2837
    • /
    • 2019
  • Container technologies are widely used in infrastructures to deploy and manage applications in cloud computing environment. As containers are light-weight software, the cluster of cloud applications can easily scale up or down to provide Internet-based services. Container-based applications can well deal with fluctuate workloads by dynamically adjusting physical resources. Current works of scheduling applications often construct applications' performance models with collected historical training data, but these works with static models cannot self-adjust physical resources to meet the dynamic requirements of cloud computing. Thus, we propose a self-adaptive automatic container scheduling framework AutoScale for cloud applications, which uses a feedback-based approach to adjust physical resources by extending, contracting and migrating containers. First, a queue-based performance model for cloud applications is proposed to correlate performance and workloads. Second, a fuzzy Kalman filter is used to adjust the performance model's parameters to accurately predict applications' response time. Third, extension, contraction and migration strategies based on predicted response time are designed to schedule containers at runtime. Furthermore, we have implemented a framework AutoScale with container scheduling strategies. By comparing with current approaches in an experiment environment deployed with typical applications, we observe that AutoScale has advantages in predicting response time, and scheduling containers to guarantee that response time keeps stable in fluctuant workloads.

Ocean Engineering Basic Test for 5MW Offshore Wind Turbine Sub-structure Jack-up Platform (5MW급 해상풍력 Sub-structure Jack-up Platform 수조모형시험)

  • Jeon, Jung-Do;Jeon, Eon-Chan
    • Journal of the Korean Society of Manufacturing Process Engineers
    • /
    • v.12 no.1
    • /
    • pp.15-21
    • /
    • 2013
  • The safety and stability of 5MW class offshore wind turbine Jack-up platform was investigated through ocean basin experiment. For simulating the environmental condition of yellow sea in the South Korea, diverse waves, winds and currents were performed based on Froude's number. Regular wave and irregular wave based on Froude's number were applied to the wind turbine structure. In experiments, the height and period of regular wave type were scaled down as the 1:50 ratio of real wave condition. Irregular wave type was simulated with TMA(Texel Storm, Marsen and Arsloe)spectrum. The vertical reaction force, resonance period and wave pressure applied to multi-supporters of wind offshore structure were measured experimentally. Finally, the results showed that the capsizing situation of the offshore structure was generated by the severe environmental condition.

A Study on the Development of Stress Tolerant Structural Systems in the Frame of Built-up Greenhouses (내재해형 조립 비닐하우스 골조 구조시스템 개발 연구)

  • Han, Duckjeon;Shim, Jongseok
    • Journal of the Korean Institute of Rural Architecture
    • /
    • v.18 no.2
    • /
    • pp.11-18
    • /
    • 2016
  • The collapsing accidents of greenhouse frames have been increased yearly due to strong wind and heavy snow, but as it was, there were few studies about the structural safety of greenhouses. Therefore, this study was carried out to develop the stress tolerant structural frame systems in built-up greenhouses. The vertical loading experiment of developed scale models were implemented and the developed types of models were simulated by 3-D analysis program in this study. These types of models, which are existing type and honeycomb type, in arch and standard style frames were classified. As a result of this study, it was verified that the honeycomb type model of arch style frame is better than the existing type model of it in stress resistance against snow load and wind load.

A Study on the Vibration Character of Floor Slab in Apartment House (공동주택 바닥 슬라브의 진동 특성에 관한 연구)

  • Pakr, Myung-Kil;Ham, Jin-Sik
    • Proceeding of Spring/Autumn Annual Conference of KHA
    • /
    • 2003.11a
    • /
    • pp.77-81
    • /
    • 2003
  • This paper is contents about vibration character that produce floor slab make up of concrete when played striking at each location. An experiment was achieved in apartment house just before occupancy which build newly to 100m$^2$ scale. Vibration level plays striking in whole 9 places and measured vibration character of x, y, z direction. As the result, vibration level of verticality direction showed high than horizontality direction.

  • PDF

Bubble-column Photobioreactor에서의 Astaxanthin 유도배양의 연구

  • Choe, Su-Rim;Seo, In-Su;Lee, Cheol-Gyun
    • 한국생물공학회:학술대회논문집
    • /
    • 2002.04a
    • /
    • pp.220-223
    • /
    • 2002
  • This study investigated a lab-scale inducing method for efficient astaxanthin accumulation. As a model system. Haematococcus pluvialis was cultivated in 2 liter bubble-column photobioreactors. The astaxanthin - inducing results using high light irradiation were compared with that of the control experiment under standard irradiation (40 ${\mu}E/m^2/s$). After the late linear growth phase (> 20 days). high light energy (230 ${\mu}E/m^2/s$) was supplied to the culture broth for astaxanthin induction. As a result. the dr γ cell weight and the astaxanthin productivity were increased up to 68% and 215%, respectively. higher than those of the control experiment. This result indicates that bubble-column type photobioreactor is a good candidate for mass cultivation of H. pluvialis and high light irradiation is an efficient induction method for astaxanthin accumulation in lab-scale bubble-column photobioreactors.

  • PDF

A Study on the Response Characteristics of Fire Detector by Full-scale Experiment of Fire Phenomena in the Row House (주택 실물화재실험에 의한 화재감지기 응답특성에 관한 연구)

  • SaKong, Seong-Ho;Kim, Shi-Kuk;Lee, Chun-Ha;Jung, Jong-Jin
    • Fire Science and Engineering
    • /
    • v.23 no.3
    • /
    • pp.67-72
    • /
    • 2009
  • This paper is for response feature of fire detectors not only to analysis response feature of fire detector, but also to observe flame spread of inside-building and fire enlargement by using the row house which is supposed to be broken up. Many kinds of popular detectors such as heat type detector(differential type, fixed temperature type, Analogue type)and smoke type(light scattered type, Analogue type, single alarm type) were installed in the house in order to check for the change of temperature by installing of thermocouples. As a result, smoke detectors are better than heat detectors when it comes to making effective fire-detect system in the row house.

Experimental Study on the Combined Effect of Power and Heat according to the Ventilation of Back Side in Roof Integrated PV System (주택 지붕일체형 PV시스템 후면환기에 따른 발전성능 변화 실험연구)

  • Yoon, Jong-Ho;Han, Kyu-Bok;An, Young-Sub
    • Journal of the Korean Solar Energy Society
    • /
    • v.27 no.3
    • /
    • pp.169-174
    • /
    • 2007
  • Building integrated photovoltaic(BIPV) system operates as a multi-functional building construction material. They not only produce electricity, but also are building integral components such as facade, roof, window and shading device. As PV modules function like building envelope in BIPV, combined thermal and PV performance should be simultaneously evaluated. This study is to establish basic Information for designing effective BIPV by discovering relations between temperature and generation capability through experiment when the PV module is used as roof material for houses. To do so, we established 3kW full scale mock-up model with real size house and attached an PV array by cutting in half. This is to assess temperature influence depending on whether there is a ventilation on the rear side of PV module or not.

Stitcing for Panorama based on SURF and Multi-band Blending (SURF와 멀티밴드 블렌딩에 기반한 파노라마 스티칭)

  • Luo, Juan;Shin, Sung-Sik;Park, Hyun-Ju;Gwun, Ou-Bong
    • Journal of Korea Multimedia Society
    • /
    • v.14 no.2
    • /
    • pp.201-209
    • /
    • 2011
  • This paper suggests a panorama image stitching system which consists of an image matching algorithm: modified SURF (Speeded Up Robust Feature) and an image blending algorithm: multi-band blending. In this paper, first, Modified SURF is described and SURF is compared with SIFT (Scale Invariant Feature Transform), which also gives the reason why modified SURF is chosen instead of SIFT. Then, multi-band blending is described, Lastly, the structure of a panorama image stitching system is suggested and evaluated by experiments, which includes stitching quality test and time cost experiment. According to the experiments, the proposed system can make the stitching seam invisible and get a perfect panorama for large image data, In addition, it is faster than the sift based stitching system.