• 한국실내디자인학회논문집
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• 제24권5호
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• pp.128-135
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• 2015

The purpose of this study is to propose a planning method for increasing visitors' usage attraction by understanding user circulation in the large scale commercial complex. Focusing on the impact of anchor tenant on the pedestrian traffic arousing visitors' usage attraction flow, this study analyzed pedestrian circulation and traffic volume of Lotte World Mall, a large scale commercial complex. In this study, the change of pedestrian traffic in the commercial complex was investigated and the circulation flow of anchor tenant visitors such as movie theater in the commercial complex was simulated by computer. By analyzing both characteristics of pedestrian circulation and traffic volume in large scale commercial complex and movie theater users' pedestrian traffic with network-based computer simulation, positive relationship between pedestrian traffic to movie theater and pedestrian traffic dispersion of the whole commercial complex users was emerged. In addition, It is necessary to plan of distributing pedestrian traffic of vertical moving line in central space appropriately for using attraction function of anchor tenant.

• 대한지리학회지
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• 제41권3호
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• pp.301-318
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• 2006

본 논문은 한국 경제가 식민지 경제 체제로 이행되는 과정에서 식민지 도시 경성의 상업공간이 도시 내부에서 어떻게 식민지 근대성을 표출시키고 있었는가를 상업회사를 중심으로 분석하고자 하였다. 경성의 상업회사에 대한 1920년대와 1930년대의 시계열적 분석을 보면, 상업회사의 수와 규모 면에서 본정2정목의 성장이 활발하였다. 민족별로 보면 일본인 상업회사 수는 본정1정목에서 가장 많이 증가하였고, 규모 면에서는 황금정2정목의 상업회사가 크게 성장하였다. 조선인 상업회사의 변화를 보면, 종로2정목이 회사 수나 규모 면에서도 가장 많이 성장하였다. 일제강점기 경성에서 일본인의 상업활동이 활발하고 규모가 켰지만 조선 상인들은 이에 대해 대처하려고 노력하였다. 조선 상인들의 근대적 경영 방식의 회사 설립과 운영 등을 시도하였고 종로2정목의 화신연쇄점을 비롯한 여러 상업회사가 비교적 규모가 큰 상업회사를 유지하면서 근대성을 담지하고 있었다. 그러나 상업회사의 규모에서 조선인 회사는 일본인 회사에 비해 영세하였고 상업회사를 중심으로 분석한 식민지 도시 경성 상업공간의 식민지 근대성은 상업활동과 상업공간의 민족별 격리와 조선인 상업자본의 영세성이라는 이중구조를 보였다.

• 한국생물공학회:학술대회논문집
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• 한국생물공학회 2000년도 춘계학술발표대회
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• pp.347-350
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• 2000

Enzymatic deinking of office-waste paper was studied using crude cellulase and papain-hydrolyzed cellulase from Trichoderma reesei Rut C-30 in small-scale and mid-scale. The results were compared with deinkings using commercial enzyme(Novozym 342) and conventional chemical methods. Maximum brightness and freeness were obtained at 3 units/g Oven Dry Paper(ODP) of CMCase activity using crude cellulase in mid-scale deinking experiments. The deinked pulp had higher physical strength and brightness, and lower freeness and yield than the pulp deinked in small scale. In small scale deinking, maximum brightness and freeness were obtained at 2 unit/g ODP. Deinking by papain-hydrolyzed cellulase showed similar results with one by Novozym 342. It was better in brightness and freeness, but showed lower physical strength and yield, than the conventional deinking by sodium hydroxide. The ratio of endo-1,4-glucanase and exo-1,4-glucanase components in papain hydrolyzed cellulase from T. reesei Rut C-30 was similar to that of commercial enzyme, Novozym 342, implicating a successful application as a deinking enzyme.

• 한국실내디자인학회논문집
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• 제20권5호
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• pp.51-58
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• 2011

As it gets nearer to the modern society, social and cultural situations are changing and the spatial form of public space is changing into the complex structure where it is interlinked with each other diversely. In particular, as the development of large-scale complex spreads nationwide, the form of complex commercial space assuming the nature of malls appears prominently. In such a large-scale complex commercial space, the diverse visual elements make the environment difficult to be perceived. Like this, the attention in the commercial space where a variety of visual stimuli are in the presence, is important element, so the plan of VP(visual presentation) is needed for effectively selecting or inducing the space. Thus, in this study, human visual and perception process will be reviewed and a method to evaluate the attention will be proposed. Also, the attention of each stores in the complex commercial spaces will be evaluated to propose the indicators for resonable spatial panning in the future.

• 한국실내디자인학회논문집
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• 제17권4호
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• pp.66-74
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• 2008

A form of consumption has been changed to a form of pursuing rather qualitative sides than quantitative sides according to an improvement of the living level followed by an increase in national income and to an increase in women's advance to society in modern society. The above change had a lot of effects on children play space, a subsidiary means within commercial facilities. However, partial children play facilities have steady children injury cases by a lack of safety management facilities. Therefore, the study investigated indoor children play facilities installed in large-scale distribution stores as department stores and discount stores out of commercial facilities in Seoul. The study investigated actual conditions and collected picture data with a checklist drawn up on the basis of the safety management standard for three months from April, 2008 to June, 2008 by visiting five places under cooperation. The purpose of the study was to grasp actual conditions of safety management of play space within commercial facilities through the contents and picture data of the investigated checklist and to offer basic data in the side of safety management of commercial facilities and various indoor children play spaces by proposing security measures for the problems.

• 동력기계공학회지
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• 제11권2호
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• pp.44-50
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• 2007

The oxidation behavior of commercial pure titanium is investigated in the temperature range of $727^{\circ}C{\sim}950^{\circ}C$ in mixed gases. The weight change is measured by TGA during oxidation in mixed gases. The oxidation behavior indicated by weight gain or the growth of oxide layer is based on the linear rate law at high temperatures. The structure of the oxide scale formed during oxidation is analysed by optical microscopy, electron probe microanalyzer, scanning electron microscope and x-ray diffraction. Oxide scales have a $TiO_2$ structure, and are constituted with multi-layered or two layered porous external one and a dense internal one. Ti-O solid solution region is formed at the interface of metal and scale layer. The formation of oxide scale is influenced by the oxidation temperature, time, crystal structure and the condition of atmosphere.

• 대한건축학회논문집:계획계
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• 제33권12호
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• pp.73-83
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• 2017

Due to the changes in the contemporary society, small-scale traditional markets have declined and lost their functions as the center of neighborhood commercial and cultural affairs. While most traditional markets are deteriorating, there exist rare cases of neighborhood small-scale traditional markets that continuously maintain their vitality and popularity. This paper examines urban spatial characteristics of those markets. As for the cases, this paper inventoried eighteen such markets in Gwanak-gu, Seoul. The research methods include literature reviews, on-site investigation of total 18 such markets, and participant observations. The findings of this paper are as follows: There are distinctive differences in the urban-spatial characteristics of physical environmental factors between the revitalized markets and declining markets. In terms of neighborhood and commercial environment, the franchised super-markets are not necessarily in competition with small-scale traditional markets. The former often has symbiotic relationship the latter, if the small scale traditional markets are strategically located in between residential areas and subway stations, providing active pedestrian networks. There are many outdoor display stands in the revitalized markets, while the declining markets rarely have them. The market improvement projects such as transforming the open space into arcade space, hardly have effects on revitalization of the small-scale traditional markets.

• 한국에너지공학회:학술대회논문집
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• 한국에너지공학회 2000년도 추계 학술발표회 논문집
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• pp.91-96
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• 2000

A commercial-scale Fluidized Bed Incinerator(FBI) to treat dewatered sludges has been developed by Jindo Corporation, Korea, as one of the governmental R&D project during 1990 to 1997. The FBI plant was constructed at Kunsan city and fully in operation after finishing the successful test-burn period since June 1998. The company now has a capability of the design, construction and operation of commercial FBI plants. This paper introduces the experiences of design and operation of Kunsan FBI plant, which has the capacity of 60 ton/day and incinerates various sludges from waste water treatment facilities and liquid waste such as waste oil or waste solvent.

• 연구논문집
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• 통권29호
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• pp.57-67
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• 1999

This paper presents the status quo of the development of a piecewise bendable switch system for the urban transit MagLev. MagLev system as well as railroad requires switch systems to reach its destination. Requirements of the switch system for commercial lines are high speed operation satisfying about 2-3 minute headway and system reliability, etc. Parallel moving type switch system was installed on the test track of urban transit MagLev in KIMM. In this system, switch operation from one position to another can be done in about 90 seconds. Therefore, we concluded that this system can not satisfy the headway for the commercial lines. We decided to develop a high speed piecewise bendable switch system in which switching can be done in 20 seconds. Designed switch system is very complicated in view of operating mechanism. It consists of 11 segmented girder beams driven by hydraulic cylinders. To gain the idea of a piecewise bendable switch system, we manufactured and tested a 1/5 scale switch model. We are going to construct a full scale piecewise bendable switch system next year.

• Food Science and Biotechnology
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• 제16권1호
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• pp.18-22
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• 2007

The objective of this study was to develop and assess the performance of an aseptic system for liquid milk contained in plastic bottles, from a small-scale production standpoint. Commercial sterility tests conducted on the bottled milk were utilized in our assessments of the system, via the identification and monitoring of the principal points of the process. Four 150 L batches of milk with pH values of approximately 6.7 were heat-processed at between 137 and $143^{\circ}C$ for 10 see in a plate heat exchanger, and then aseptically transferred to 500 mL high-density polyethylene (HOPE) bottles, in an ISO class 7 clean room. The aseptic condition of the bottles was achieved via 10 see of rinsing with a mixture containing 0.5% peracetic acid and 0.8% hydrogen peroxide at $30^{\circ}C$, followed by another rinse with sterile water. Of the 4 batches processed, 2 were determined to exhibit commercial sterility, on the basis of the physical-chemical and microbiological criteria adopted. It was concluded that some adjustment of the processing line was required in order to achieve full commercial sterility for all processes. The aseptic system developed and assessed in this study was demonstrated to have great potential for the processing and transferring of milk into plastic bottles, from a small-scale production standpoint.