• 한국조리학회지
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• 제12권3호
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• pp.219-236
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• 2006

The purpose of this study is to examine the elements that satisfy customers in order for restaurants to survive in competition, and to examine effective positioning strategies. Since the designation of Haeundae in Busan as a Special Tourism Zone, diverse food service markets have been established and various marketing activities are anticipated accordingly. The results of this study can be summarized as follows: First, after the examination of the competitive relationships among restaurants, based on the image similarity data, it was found that Bennigan's, Outback Steakhouse, and T.G.I. Friday's are in close proximity with one another. Hence the fierce competition between them. Secondly, as a result of PC-MDS PROFIT analysis, a positioning map was drawn with image similarity measurement of the restaurants and scores 9 evaluation categories for each brand name as follows: food taste, food price, service, access convenience, hygienic condition and cleaning, atmosphere, various events, circumferential environment, and public image. Thirdly, as a result of MDPREFMAP analysis based on the customer preference, data from the restaurant brand names, an ideal location of a restaurant preferred by customers and the position of restaurant brand names were indicated at the same time.

• 에너지공학
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• 제15권1호
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• pp.14-22
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• 2006

원자력발전과 신재생에너지발전에 대하여 과학적, 객관적 검토없이 다양한 정책과 주장이 제기되고 있다. 본 연구에서는 국가별 에너지정책을 조사 분석하고 총 34개의 가능한 전원구성 시나리오를 도출하였다. 이들 시나리오가 우리나라 전력정책에 도입될 경우를 가정하여 전력단가를 계산하였다. 전력단가 계산방법은 현재 우리나라 전력시장에서 사용하는 한계가격결정 방법을 사용하였고 발전원별로 표준건설비 및 운영비를 적용함으로써 계산을 단순화하였다. 계산결과 송배전 비용과 사업자의 이윤을 제외한 현행 전원 구성에 대한 전력단가는 평균 22.18원/kWh이고 전원구성비에 따라 19.74에서 164.07원/kWh까지 분포하였다. 원자력발전비율이 증가할수록 전력단가는 낮아졌고 신재생에너지 발전비율이 증가할수록 전력단가는 높아졌다. 주목할 만한 것은 신재생에너지 발전비율이 20%를 넘어서게 되면 값싼 기저발전을 활용할 수 없게 되어 전력수요가 적은 시간대에 전력단가가 오히려 상승하였다.

• 사물인터넷융복합논문지
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• 제5권2호
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• pp.7-13
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• 2019

인터넷의 발전으로 온라인 쇼핑이 활성화 되면서 소비자들의 구매 형태가 기존의 대면 구매방식에서 온라인 구매방식으로 변하고 있다. 이에 수많은 판매자가 쇼핑몰로 유입되었고, 판매자들 간의 경쟁이 매우 치열한 실정이다. 따라서 쇼핑몰 내 판매자들은 소비자의 구매 패턴 및 제품 판매동향을 분석하여 합리적인 마케팅 전략을 세울 필요가 있다. 본 논문에서는 오픈 쇼핑몰에서 판매업자가 동일 제품을 판매하는 경쟁사의 제품 가격, 평점, 판매수량을 시간대별로 분석하여 소비자의 구매 패턴을 파악했다. 또한 수집된 정보들을 차트로 가시화하여 자사와 경쟁사의 판매동향을 쉽게 비교할 수 있도록 하였다. 위 시스템을 사용하면 분석된 구매패턴을 통해 판매수량을 예측할 수 있고 판매동향을 파악하여 상품의 합리적인 가격 선정이 가능하다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.462-467
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• 2007

From the research which it sees verification of the whole interpretation and local interpretation of the durability steel deck bridge a static test and it produces the test body which it sells with character and it executes smallness pul lek detailed interpretation it leads and the appropriate characteristic of smallness pul lek detailed interpretation and to sleep a nominal stress price and it compares it judges it does. The stress quality from each structure region which it follows in load stock location it analyzes and from the hazard which evaluates, the objective region the length rib and the bottom grater weld zone, the length rib and width rib connection department and the width rib with the father it divided. It investigated the stress distribution of the test body from these objective location, FEM interpretation it led and the conduct against each structure state tax it analyzed. General conduct the load stock location the floor plate is located in the center with interpretation price together symmetry characteristic to seem, it cannot be like that it cannot there is one actual test price. Like this reason the length rib and width rib connection actually production even production characteristic security it is a day when it is impossible with the curvature junction department which it blows, it follows in examination body deferment condition and form feed with the fact that it is visible a big difference even with error of some it becomes. Consequently for a data and the research which are more accurate it is judged with the fact that the effort which is prudent will be necessary.

• 한국지역지리학회지
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• 제17권6호
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• pp.710-725
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• 2011

본 연구는 대구시 중심시가지의 점이지대 주거지역을 대상으로 주거실태와 주민의 주거의식을 분석한 것이다. 거주민에 대한 설문조사를 통하여 도출한 대구시 점이지대의 주거지 특성은 다음과 같다. 첫째, 점이지대는 저소득의 60대 이상 노령층의 비율이 매우 높았다. 이들은 직업이 없는 사람과 이 지역에 오랫동안 거주한 자가소유자가 많았다. 둘째, 점이지대의 주택은 노후화가 심하고, 기반시설은 불량한 상태이다. 그러나 주택 내부시설은 비교적 보수와 정비가 잘되어 있다. 셋째, 공해와 주택시세를 제외하면 주거만족도는 대체로 높은 값을 보이고 있는데 이는 점이지대가 도심시설 이용 및 출퇴근이 편리하기 때문인 것으로 나타났다. 넷째, 만족도를 중심으로 거주민 집단을 분류해 보면, 오래전부터 주택의 자가 소유를 통한 안정적인 거주성을 유지하고 있는 노령층(만족도가 높은 집단)과 일시적인 필요와 값싼 임대료의 이유로 거주하는 젊은층(만족도가 낮은 집단)의 두 집단이 점이지대에 공존하고 있었다. 결과적으로, 대구의 점이지대 주거지는 서구의 슬럼과 같은 문제지역이 아니라 거주민의 안정적인 정착지로서 기능을 담당하고 있었다.

• 복식문화연구
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• 제9권3호
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• pp.357-374
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• 2001

This study analyzed the trends of fashion market in 15 branch stores of 3 major department stores in Seoul. The purposes of this study were to classify fashion zone and brands in each floor of the department stores, and to analyze the rate which a fashion brand was located department store. The results were as follows : 1. There were sundry goods on main floor, women\`s clothings on 2-4th floor, sports & golf wears and infants & children\`s clothings from 6th floor to the top in most department stores. 2. Lotte Chamshil branch had the largest number of fashion brands in it, the nest was Lotte Main store and followed by Hyundai Chunhoe branch, Shinsegae Gangnam branch, Hunndai Shinchun branch, Lotte Gangnam branch, Hyundai Main store, Hyundai Muyeuk-Center branch, and Lotte Youngdeungpo branch, etc. 3. The fashion categories of the Lotte Department stores were segmented as the Casuals (character, young, young basic, career, town, jean, city), Young worlds, Imported beautique, Madams, Designers(beautique), Intelligences, Unisex, Ladies formal wears, the Seasonables, and the Formals, Missy Careers. This was the most various fashion market segments among 3 major department stores. This store had 667 Women\`s fashion and Casual brands. The Chamshil branch and Main store were intensified the Casual & sundry goods on 5th floor. 4. The fashion categories of the Hundai Department stores were segmented as Women\`s wears, Women\`s casuals, Young-Adult, Young live, Women\`s former wears, Royal beautique and Young characters. It was less segmented than other Department stores. Total number of Women\`s fashion and casual brands were 471 brands. The market segmentation of fashion zone was well done at Chunho branch and Shinchun branch. It was intensified that Fashion sundry goods at Muyeuk-Center branch and The Women and Young fashion zone at Chunho branch. 5. The fashion categories of the Shinsaegae Department stores were segmented as Casuals (young, young character, X-, missy, career, character), Imported beautique, Designer\`s characters, Young basics, Elegance, Missy, Young weave, Original brands. This store had 304 Women\`s fashion and Casual brands. Shinsaegae has also developed it\`s own brand(PB items) and classified as the Original zone which differentiated it from other Departments. 6. The Deco was the most popular brand in the department stores, the next were Micha/Botticelli, and followed by Darks/System/lzzat Baba, Givy/Obzee/Lee won jae/Kim yeon Joo, and so on. The target of 6 out of 10 brands which were included in here were career women of age 20 to 30 ages. The price rate were from 200,000 won to 300,000 won.

• Corrosion Science and Technology
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• 제14권2호
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• pp.54-58
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• 2015

A heavy oil of low quality has been mainly used in the diesel engine of the merchant ship as the oil price has been significantly jumped for several years. Thus, a combustion chamber of the engine has been often exposed to severely corrosive environment more and more because temperature of the exhaust gas of the combustion chamber has been getting higher and higher with increasing of using the heavy oil of low quality. As a result, wear and corrosion of the engine parts such as exhaust valve, piston crown and cylinder head surrounded with combustion chamber are more serious compared to the other parts of the engine. Therefore, an optimum repair welding for these engine parts is very important to prolong their lifetime in a economical point of view. In this study, 1.25Cr-0.5Mo filler metal was welded with SMAW method in the forged steel which would be generally used with piston crown material. And the corrosion properties of weld metal, heat affected and base metal zones were investigated using electrochemical methods such as measurement of corrosion potential, anodic polarization curves, cyclic voltammogram and impedance etc. in 35% $H_2SO_4$ solution. The weld metal and base metal zones exhibited the highest and lowest values of hardness respectively. And, the corrosion resistance of the heat affected and weld metal zones was also increased than that of the base metal zone. Furthermore, it appeared that the corrosive products with red color and local corrosion like as a pitting corrosion were more frequently observed on the surface of the base metal zone compared to the heat affected and weld metal zones. Consequently, it is suggested that the mechanical and corrosion characteristics of the piston crown can be predominantly improved by repair welding method using the 1.25Cr-0.5Mo electrode.

• Journal of Advanced Marine Engineering and Technology
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• 제31권6호
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• pp.744-752
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• 2007

Recently a fuel oil of the diesel engine in the ship is being changed with low quality as the oil price is higher more and more. Therefore the wear and corrosion in all parts of the engine like cylinder liner ring groove of piston crown, spindle and seat ring of exhaust valve are increased with using of heavy oil of low quality In particular the degree of wear and corrosion in between valve spindle and seat ring are more serious compared to the other parts of the engine due to operating in severe environment such as the high temperature of exhaust gas and repeating impact. Thus the repair weld to the valve spindle and seat ring is a unique method to prolong the life of the exhaust valve in an economical point of view In this study. corrosion property of both weld metal zone and base metal was investigated with some electrochemical methods such as measurement of corrosion potential, cathodic and anodic polarization curves, cyclic voltammogram and polarization resistance etc. in 5% $H_2SO_4$ solution. in the case of being welded with some welding methods and welding materials to the exhaust valve specimen as the base metal. In all cases. the values of hardness of the weld metal zone were more high than that of the base metal. And their corrosion resistance were also superior to the base metal. The weld metal of A2F(AC SMAW: 2 pass welding with foreign electrode) showed a relatively good results to the corrosion resistance as well as the hardness compared to the ether welding methods and welding materials. Moreover it indicated that hardness of the weld metal by the domestic electrode was considerably high compared to that of the foreign electrode.

• 조명전기설비학회논문지
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• 제27권11호
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• pp.7-13
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• 2013

There has been a need for the systematic evaluation of the economic efficiency between conventional fluorescent lamp lighting systems that have been used in tunnels and LED lighting systems. This study has evaluated basic tunnel lighting between the conventional fluorescent lighting systems and the LED lighting system using the evaluation tool of tunnel lighting by Life Cycle Cost (LCC) and using the economic efficiency evaluation method. In addition, the unit discount rate of the LED lighting system and the estimated increase in the price of electricity have made the estimated cost of LCC the same if two luminaires were used in the basic part of the tunnel.

• 한국생산제조학회지
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• 제21권1호
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• pp.90-94
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• 2012

This study evaluates the strength of surface treatment parts using the hard anodizing method to the aluminum alloy brake disks. In order to achieve weight reduction of vehicles, Eco-friendly cars parts of the high-quality and competitive price is to equip. Especially while pursuing parts of weight reduction, it has to maintain the strength of the surface of the brake by nature. To enhance surface strength of aluminum alloy, we use hard anodizing technology in the surface treatment. This study is resulted of 3 times greater the hardness value of the hard anodized specimen than the aluminum alloy specimen for the lightweight parts of EV brake disk