• Title/Summary/Keyword: physical cost

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Recognition of Model Cars Using Low-Cost Camera in Smart Toy Games (저가 카메라를 이용한 스마트 장난감 게임을 위한 모형 자동차 인식)

  • Minhye Kang;Won-Kee Hong;Jaepil Ko
    • IEMEK Journal of Embedded Systems and Applications
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    • v.19 no.1
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    • pp.27-32
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    • 2024

  • Recently, there has been a growing interest in integrating physical toys into video gaming within the game content business. This paper introduces a novel method that leverages low-cost camera as an alternative to using sensor attachments to meet this rising demand. We address the limitations associated with low-cost cameras and propose an optical design tailored to the specific environment of model car recognition. We overcome the inherent limitations of low-cost cameras by proposing an optical design specifically tailored for model car recognition. This approach primarily focuses on recognizing the underside of the car and addresses the challenges associated with this particular perspective. Our method employs a transfer learning model that is specifically trained for this task. We have achieved a 100% recognition rate, highlighting the importance of collecting data under various camera exposures. This paper serves as a valuable case study for incorporating low-cost cameras into vision systems.

  • https://doi.org/10.14372/IEMEK.2024.19.1.27 인용 PDF

The Cost Monitoring of Construction Projects through Earned Value Analysis

  • Waris, Muhammad;Khamidi, Mohd Faris;Idrus, Arazi
    • Journal of Construction Engineering and Project Management
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    • v.2 no.4
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    • pp.42-45
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    • 2012

  • In construction industry, the term 'procurement' is considered as a project based job where clients and contractors are always keen to observe performance indicators. These indicators represent financial and non-financial efficiency of project activities. Among these, the monitoring of financial indicators such as cost monitoring is an ongoing process and its importance cannot be undermined during the project life cycle. It can be monitored by using traditional approach of direct reporting of actual cost against budget. However, the comparison of budget versus actual spending does not indicate the worth of the work which is completed at any given time. This approach does not represent the true cost performance of the project. Because of these limitations, this paper discusses the applications of Earned Value Analysis (EVA) for cost monitoring of construction projects in Malaysia. Besides traditional approach, EVA is a three-dimensional approach that compares three cost indicators i.e. the budgeted value of work scheduled with the earned value of physical work completed and the actual cost of work completed. Therefore, cost monitoring by EVA is an objective measure of actual work performed. This paper uses a case study, an example application of EVA as a cost monitoring tool. This case study reaffirms the benefits of using EVA for project cash flow analysis and forecasting.

  • https://doi.org/10.6106/JCEPM.2012.2.4.042 인용 PDF KSCI

Measuring the resource-based relative value scale scores for physical therapies of traditional Korean medicine and estimating the insurer's expenditure in National Health Insurance (한방물리요법 상대가치 산출과 급여 확대 시 재정부담 추계)

  • Lim, Byung-Mook;Shin, Mi-Sook;Shin, Byung-Cheul;Song, Yoon-Kyung;Song, Mi-Yeon;Shin, Seung-Woo;Kim, Ho-Jun;Lee, Myeong-Jong
    • Journal of Society of Preventive Korean Medicine
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    • v.14 no.2
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    • pp.57-66
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    • 2010

  • Backgrounds : Since December 1, 2009, National Health Insurance began to reimburse for three physical therapies of Korean medicine. The extension of insurance coverage is demanded by Korean medicine societies. Objectives : This study aimed to measure the resource-based relative value scale (RBRVS) scores for thirty four physical therapies of Korean medicine and to estimate the insurer's expenditure for them in National Health Insurance. Methods : To measure the physician's work and the practice expense, the 'magnitude estimation method (MEM)' and the 'fully distributed cost - attributable cost method (FDC-ACM)' were applied respectively. We collected the frequency data of physical therapies from Korean medicine hospitals and clinics to estimate the total expenditure. Results : The resource-based relative value scale scores of physical therapies were measured from 23.44 to 160.66. Total insurer's expenditure was calculated to be 95.5 billion won as of 2009. Conclusions : Based on the result that showed minor increase of total expenditure, most physical therapies of Korean medicine need to be reimbursed in the National Health Insurance.

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Development of decision supporting package for the design of a physical distribution system (물류시스템 설계를 위한 의사결정지원 패키지의 개발)

  • 송성헌;양병학
    • Korean Management Science Review
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    • v.10 no.2
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    • pp.79-91
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    • 1993

  • Strategic decisions related to the design of a physical distribution system can be classified into three basic components : facility location, transportation, inventory decisions. In this research the interdependence of those decisions are expressed in a mathematical model such that the total relevant cost of the system is minimized. We suggested a heuristic technique for solving the model. In broad terms, our solution technique combines a heuristic method for determining which candidate DCs to open and an exact method for minimizing costs given a set of open DCs. And we also developed a decision supporting package for the design of a physical distribution system.

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Physical Properties of Planting Concrete Using Recycled Aggregate (재생골재를 이용한 식재용 콘크리트의 물리적 특성)

  • 이상태;신동안;황정하;김진선;오선교;한천구
    • Proceedings of the Korea Concrete Institute Conference
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    • 2000.04a
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    • pp.93-96
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    • 2000

  • In this paper, physical properties of planting concrete using Recycled aggregates made with demolished concrete and construction wastes are investigated. According to the test results. It shows that recycled aggregates made with demolished concrete and construction wastes have low physical properties compared with crushed stone. But, recycled aggregates made with construction wastes shows better performance in absorption ratio, unit weight and thermal conductivity than crushed stone. According it is thought that they are available for being applied to planting concrete considering the sides of efficient recycling of construction wastes and saving the manufacturing cost.

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Fabrication of Nanocomposite Powders by Sonochemical Method

  • Hayashi, Yamato;Sekino, Tohru;Niihara, Koichi
    • Journal of Powder Materials
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    • v.8 no.3
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    • pp.207-209
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    • 2001

  • Nano particles have recently been a major research interest, motivated by their unusual physical and chemical properties. Such particles can be synthesized using physical and chemical methods. The physical methods need expensive installation like vacuum induction furnace, whereas in chemical methods the process in generally very simple and low cost. In this study, simple and new fabrication process by using ultrasound was investigated to prepare the nano-sized metal particles on various powders at room temperature.

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A Survay of Satisfaction of Physical Therapy Patients in Kwang-ju (광주지역내 물리치료실 이용 환자의 물리치료 만족도 조사)

  • Kwon Mi-Ji;Kim Seok Hwan
    • The Journal of Korean Physical Therapy
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    • v.15 no.2
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    • pp.1-11
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    • 2003

  • Patients satisfaction continues to receive attention as a measure of the outcome of physical therapy intervention. This study measures patient satisfaction among physical therapists' patients and clients and to identify factors of patient satisfaction that will affect patients decision. The instrument developed by Goldstein et. al(2000) was used. PAtients' opinions of service in each domain were measured using 5-point Likert-type scales. A 20-item instrument designed to measure the domains of patient satisfaction and 8 additional items were included. Data were collected at 8 hospital in Kwang-ju city Descriptive statistics, reliability, ANOVA, cross-tabs and regression analysis were computed. A total 365 individuals completed the instrument. Waiting time, treatment and cost domain predicted the satisfaction of physical therapy

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Comparative Study of Physical Therapy between the Oriental and the Western Medicine (양.한방 물리치료의 차이점 연구)

  • Chang, Moon-Kyung
    • Journal of Korean Physical Therapy Science
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    • v.2 no.2
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    • pp.569-576
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    • 1995

  • The objective of this study was to investigate characteristics in physical therapy according to the oriental and the western medicine. Questionnaires were referred to 101 chiefs of physical therapy departments of 66 hospitals of western medicine and 35 hospitals of oriental medicine. The results were as follows ; 1) For therapeutic members, significant indicators related to difference of the two groups were number of therapist, kind of therapist, programmer of physical therapy and referer to physical therapy. 2) For therapeutic environment, the size of therapeutic room and the respective department. 3) The two groups regarding whether the treatment was carried out or not in 14 cases of treatment (42.4 % ), and whether the cost of treatment was requested by medical insurance or not in 23 cases of treatment (70.0%).

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The Impact of Market Environments on Optimal Channel Strategy Involving an Internet Channel: A Game Theoretic Approach (시장 환경이 인터넷 경로를 포함한 다중 경로 관리에 미치는 영향에 관한 연구: 게임 이론적 접근방법)

  • Yoo, Weon-Sang
    • Journal of Distribution Research
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    • v.16 no.2
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    • pp.119-138
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    • 2011

  • Internet commerce has been growing at a rapid pace for the last decade. Many firms try to reach wider consumer markets by adding the Internet channel to the existing traditional channels. Despite the various benefits of the Internet channel, a significant number of firms failed in managing the new type of channel. Previous studies could not cleary explain these conflicting results associated with the Internet channel. One of the major reasons is most of the previous studies conducted analyses under a specific market condition and claimed that as the impact of Internet channel introduction. Therefore, their results are strongly influenced by the specific market settings. However, firms face various market conditions in the real worlddensity and disutility of using the Internet. The purpose of this study is to investigate the impact of various market environments on a firm's optimal channel strategy by employing a flexible game theory model. We capture various market conditions with consumer density and disutility of using the Internet.

    shows the channel structures analyzed in this study. Before the Internet channel is introduced, a monopoly manufacturer sells its products through an independent physical store. From this structure, the manufacturer could introduce its own Internet channel (MI). The independent physical store could also introduce its own Internet channel and coordinate it with the existing physical store (RI). An independent Internet retailer such as Amazon could enter this market (II). In this case, two types of independent retailers compete with each other. In this model, consumers are uniformly distributed on the two dimensional space. Consumer heterogeneity is captured by a consumer's geographical location (ci) and his disutility of using the Internet channel (${\delta}_{N_i}$).
    shows various market conditions captured by the two consumer heterogeneities.
    (a) illustrates a market with symmetric consumer distributions. The model captures explicitly the asymmetric distributions of consumer disutility in a market as well. In a market like that is represented in
    (c), the average consumer disutility of using an Internet store is relatively smaller than that of using a physical store. For example, this case represents the market in which 1) the product is suitable for Internet transactions (e.g., books) or 2) the level of E-Commerce readiness is high such as in Denmark or Finland. On the other hand, the average consumer disutility when using an Internet store is relatively greater than that of using a physical store in a market like (b). Countries like Ukraine and Bulgaria, or the market for "experience goods" such as shoes, could be examples of this market condition. summarizes the various scenarios of consumer distributions analyzed in this study. The range for disutility of using the Internet (${\delta}_{N_i}$) is held constant, while the range of consumer distribution (${\chi}_i$) varies from -25 to 25, from -50 to 50, from -100 to 100, from -150 to 150, and from -200 to 200.
    summarizes the analysis results. As the average travel cost in a market decreases while the average disutility of Internet use remains the same, average retail price, total quantity sold, physical store profit, monopoly manufacturer profit, and thus, total channel profit increase. On the other hand, the quantity sold through the Internet and the profit of the Internet store decrease with a decreasing average travel cost relative to the average disutility of Internet use. We find that a channel that has an advantage over the other kind of channel serves a larger portion of the market. In a market with a high average travel cost, in which the Internet store has a relative advantage over the physical store, for example, the Internet store becomes a mass-retailer serving a larger portion of the market. This result implies that the Internet becomes a more significant distribution channel in those markets characterized by greater geographical dispersion of buyers, or as consumers become more proficient in Internet usage. The results indicate that the degree of price discrimination also varies depending on the distribution of consumer disutility in a market. The manufacturer in a market in which the average travel cost is higher than the average disutility of using the Internet has a stronger incentive for price discrimination than the manufacturer in a market where the average travel cost is relatively lower. We also find that the manufacturer has a stronger incentive to maintain a high price level when the average travel cost in a market is relatively low. Additionally, the retail competition effect due to Internet channel introduction strengthens as average travel cost in a market decreases. This result indicates that a manufacturer's channel power relative to that of the independent physical retailer becomes stronger with a decreasing average travel cost. This implication is counter-intuitive, because it is widely believed that the negative impact of Internet channel introduction on a competing physical retailer is more significant in a market like Russia, where consumers are more geographically dispersed, than in a market like Hong Kong, that has a condensed geographic distribution of consumers.
    illustrates how this happens. When mangers consider the overall impact of the Internet channel, however, they should consider not only channel power, but also sales volume. When both are considered, the introduction of the Internet channel is revealed as more harmful to a physical retailer in Russia than one in Hong Kong, because the sales volume decrease for a physical store due to Internet channel competition is much greater in Russia than in Hong Kong. The results show that manufacturer is always better off with any type of Internet store introduction. The independent physical store benefits from opening its own Internet store when the average travel cost is higher relative to the disutility of using the Internet. Under an opposite market condition, however, the independent physical retailer could be worse off when it opens its own Internet outlet and coordinates both outlets (RI). This is because the low average travel cost significantly reduces the channel power of the independent physical retailer, further aggravating the already weak channel power caused by myopic inter-channel price coordination. The results implies that channel members and policy makers should explicitly consider the factors determining the relative distributions of both kinds of consumer disutility, when they make a channel decision involving an Internet channel. These factors include the suitability of a product for Internet shopping, the level of E-Commerce readiness of a market, and the degree of geographic dispersion of consumers in a market. Despite the academic contributions and managerial implications, this study is limited in the following ways. First, a series of numerical analyses were conducted to derive equilibrium solutions due to the complex forms of demand functions. In the process, we set up V=100, ${\lambda}$=1, and ${\beta}$=0.01. Future research may change this parameter value set to check the generalizability of this study. Second, the five different scenarios for market conditions were analyzed. Future research could try different sets of parameter ranges. Finally, the model setting allows only one monopoly manufacturer in the market. Accommodating competing multiple manufacturers (brands) would generate more realistic results.

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    • A Study on Developing the Acquisition Unit Cost Estimating Model of the Guided Weapon System (유도무기 획득단가 추정 모델 개발에 관한 연구)

    • Kim, Yonghyun;Lee, Yongbok;Jung, Wonil;Kim, Dongkyu;Kang, Sungjin
      • Journal of the Korea Institute of Military Science and Technology
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      • v.15 no.5
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      • pp.565-576
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      • 2012

    • Cost estimates are necessary for government acquisition program to support decisions about funding, to develop annual budget requests and to validate resource requirements at key decision points. Many researches have been done about cost estimating technique recently. Parametric cost estimating models based on CERs(Cost Estimating Relationships) have been mainly used using regression method with historical data. However, there are many restrictions in developing Korean version CERs because the number of data points are too small. Specially, data collection and data management system are unstable in Korean defense environment, when developing CERs. In this research, we analyzed the historical data, and found some cost drivers in guided weapon system area. We developed the Acquisition Unit Cost CER using the regression to remove multicollinearity in the historical data. So we could overcome the restriction of the insufficient sample number. This research as a first attempt is meaningful in terms of obtaining our own Acquisition Unit Cost CER using historical cost and physical characteristic in Korean development environment.

    • https://doi.org/10.9766/KIMST.2012.15.5.565 인용 PDF KSCI
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