Study on the Effect of Product Line Pricing on Loading Efficiency and Logistics Cost (상품라인별 가격결정이 적재효율 및 물류비에 미치는 영향에 관한 연구)
- Jung, Sung-Tae;Yoon, Nam-Soo;Han, Kyu-Chul
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- Journal of Distribution Science
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- v.12 no.8
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- pp.55-69
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- 2014
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Purpose - Despite the importance of price, many companies do not implement pricing policies smoothly, because typical price management strategies insufficiently consider logistics efficiency and an increase in logistics costs due to logistics waste. This study attempts to examine the effect of product line pricing, which corresponds to product mix pricing, on logistics efficiency in the case of manufacturer A, and analyzes how logistics performance changes in response to these variables. Research design, data, and methodology - This study, based on the case of manufacturer A, involved research through understanding the current status, analyses, and then proposing improvement measures. Among all the products of manufacturer A, product group B was selected as the research object, and its distribution channel and line pricing were examined. As a result of simulation, for products with low loading efficiency, improvement measures such as changing the number of bags in the box were suggested, and a quantitative analysis was conducted on how these measures influence logistics costs. The TOPS program was used for the Pallet loading efficiency simulation tool in this study. To prevent products from protruding out of the pallet, the maximum measurement was set as 0.0mm, and loading efficiency was based on the pallet area, and not volume. In other words, its size (length x width) was focused upon, following the purpose of this study and, then, the results were obtained. Results - As a result of the loading efficiency simulation, when the number of bags in the box was changed for 36 products with low average loading efficiency of 73.7%, as shown in
, loading efficiency improved to 89.9%. Further, from calculating logistics cost based on the cost calculation standard of manufacturer A, the amount of annual logistics cost reduction amounted to 101,458,084 KRW. Given that the sum of the logistics cost of the product group B of manufacturing enterprises A is 400,340,850 KRW, it can be reduced by 25%, to 298,882,766 KRW. Although many methods improve loading efficiency, this study proved that logistics cost could be reduced by changing the number of bags within boxes. If this measure is applied to other items, visible logistics cost reduction effects will be realized through improvements in loading efficiency. Conclusions - Future pricing policies should consider their correlation with quality, loading efficiency, product specifications, and logistics standardization to prevent logistics waste, enabling management to improve earnings for companies. Thus, when companies decide pricing policies for new products, the aspects of merchandising and marketing should take priority; however, the aspect of logistics also needs to be considered as significant. Measures revealed by the study results are not only the responsibilities of manufacturing enterprises. Pricing policy agreements between manufacturing enterprises and distribution companies, and logistics factors related to price determination should be considered; further, governments should also support them for their collaborations. This will enable consumers to purchase quality products with low prices.
Unconventional Issues and Solutions in Developing IoT Applications (IoT 애플리케이션 개발에서 비전형적 이슈 및 솔루션)
- Ra, Hyun Jung;Kim, Soo Dong
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- KIPS Transactions on Computer and Communication Systems
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- v.3 no.10
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- pp.337-350
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- 2014
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Internet-of-Things(IoT) is the computing paradigm converged with different technologies, where diverse devices are connected via the wireless network, acquire environmental information from their equipped sensors, and are actuated. IoT applications provide smart services to users by interacting with multiple devices connected to the network. IoT devices provide the simple set of the information and also offer smart services by collaborating with other devices. That is, IoT applications always interact with IoT devices which are becoming very popular at a fast pace. However, due to this fact, developing IoT application results in unconventional technical challenges which have not been observed in typical software applications. Moreover, since IoT computing has its own characteristics which are distinguished from other former paradigms such as embedded computing and mobile computing, IoT applications also reveal their own technical challenges. Therefore, we analyze technical challenges occurring in developing IoT applications and present effective solutions to overcome the challenges. To verify identified issues and presented solutions, we present the result of performing a case study of developing an IoT application. Through the case study, we verify how the unconventional technical issues are raised in a real domain and analyze effectiveness of applying the solutions to the application.
Comparison among Gamma(
${\gamma}$ ) Line Systems for Non-Linear Gamma Curve (비선형 감마 커브를 위한 감마 라인 시스템의 비교)- Jang, Won-Woo;Lee, Sung-Mok;Ha, Joo-Young;Kim, Joo-Hyun;Kim, Sang-Choon;Kang, Bong-Soon
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- Journal of the Korea Institute of Information and Communication Engineering
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- v.11 no.2
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- pp.265-272
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- 2007
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This proposed gamma (
${\gamma}$ ) correction system is developed to reduce the difference between non-linear gamma curve produced by a typical formula and result produced by the proposed algorithm. In order to reduce the difference, the proposed system is using the Least Squares Polynomial which is calculating the best fitting polynomial through a set of points which is sampled. Each system is consisting of continuous several kinds of equations and having their own overlap sections to get more precise. Based on the algorithm verified by MATLAB, the proposed systems are implemented by using Verilog-HDL. This paper will compare the previous algorithm of gamma system such as Existing system with Seed Table with the latest that such as Proposed system. The former and the latter system have 1, 2 clock latency; each 1 result per clock. Because each of the error range (LSB) is$1{\sim}+1,\;0{\sim}+36$ , we can how that Proposed system is improved. Under the condition of SAMSUNG STD90 0.35 worst case, each gate count is 2,063, 2,564 gates and each maximum data arrival time is 29.05[ns], 17.52[ns], respectively.
Evaluation for Loss Rate of Carbon Dioxide by Sample Storage Method (시료 보관 방법에 따른 이산화탄소 시료의 유실율 평가)
- Cho, Chang-Sang;Lee, See-Hyung;Lim, Ki-Kyo;Yoo, Jung-Hwa;Sa, Jae-Hwan;Jeon, Byung-Gwan;Jeon, Eui-Chan
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- Journal of Climate Change Research
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- v.2 no.4
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- pp.309-316
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- 2011
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The study evaluated the loss rate of carbon dioxide, which is the prevalent greenhouse gas, according to the method of keeping specimens using standard gases. In order to examine the difference generated by a bag of storing specimens, it checked the loss rate according to concentration and time by making a 2nd set of standard gases in a Tedlar bag and an Aluminium bag. The containers lost gases at a rate of 5% or more after 6 day, and 10% or more after 15 days in both bags. In time, it was confirmed that the loss rate of the Aluminium bag was higher than that of the Tedlar bag. Specifically, there was no significant difference between the two bags after 12 days had passed, but by the 15th day, it was confirmed that the loss in an Aluminium bag was more severe than that in the Tedlar bag. The study went on to check the relations between the humidity in storage and the loss rate. The results showed that there was no significant effect of humidity on the loss rate until 72 hours had passed, when the loss rate in the Tedlar bag with high humidity was about 5% higher than that of the Tedlar bag in dry conditions. This study examined the loss rate of carbon dioxide, a typical greenhouse gas. It is important to note that the loss rate was determined by calculating highly reliable carbon dioxide emission and emission coefficient data, with consideration to the method of keeping specimens.
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System Software Design of Computed Tomography Radiation Dose Management (컴퓨터 단층촬영(CT) 방사선 노출 관리 시스템 소프트웨어 설계)
- Yang, Yu-mi;Lee, Kil-hung;Cho, Sang-wook
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- Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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- 2014.05a
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- pp.489-492
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- 2014
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This thesis provides the design of system software for the management of radiation dose that is generated using computer tomography(CT). Because radiation exposure is different depending on the difference in sensitivity to each part for each of the patient's body, if we will be able to manage an appropriate amount of radiation, it is possible to estimate the radiation exposure of the patient as a result. Recently, radiation leakage incident of Japanese nuclear power plant was in the news internationally and there is a growing interest not only a nuclear power plant, to medical radiation exposure. In spite of the fact that currently safety management of radiation is under control only the workers of the radiation involved, exposure management of patients until now have been required. Surgery and inspection using the radiation in Korea will increase, due to this medical exposure has increased, but it is a reality that medical institution don't know the level of radiation exposure applied to the patient. Therefore a system for managing the radiation exposure of the patient from the medical institution is required. This paper proposes a design of a software program to manage the radiation exposure of CT is an typical imaging tool to use the radiation in the medical institution. By check the amount of radiation dose and set the limit of dose, we would help to optimize the medical exposure of the patient.
A study on user authentication method using speaker authentication mechanism in login process (로그인 과정에서의 화자인증 메커니즘을 이용한 사용자인증 방안 연구)
- Kim, Nam-Ho;Choi, Ji-Young
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- Smart Media Journal
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- v.8 no.3
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- pp.23-30
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- 2019
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With the popularization of the Internet and smartphone uses, people in the modern era are living in a multi-channel environment in which they access the information system freely through various methods and media. In the process of utilizing such services, users must authenticate themselves, the typical of which is ID & password authentication. It is considered the most convenient method as it can be authenticated only through the keyboard after remembering its own credentials. On the other hand, modern web services only allow passwords to be set with high complexity by different combinations. Passwords consisting of these complex strings also increase proportionally, since the more services users want to use, the more user authentication information they need to remember is recommended periodically to prevent personal information leakage. It is difficult for the blind, the disabled, or the elderly to remember the authentication information of users with such high entropy values and to use it through keyboard input. Therefore, this paper proposes a user authentication method using Google Assistant, MFCC and DTW algorithms and speaker authentication to provide the handicapped users with an easy user authentication method in the login process.
A Study on Offshore Ship-to-Ship Mooring Characteristics through Numerical Analysis (수치해석을 통한 해상 Ship-to-Ship 계류 특성에 관한 연구)
- Lee, Sang-Won;Lee, Yun-Sok;Cho, Ik-Soon
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- Proceedings of the Korean Institute of Navigation and Port Research Conference
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- 2019.05a
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- pp.135-137
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- 2019
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In recent years, the need for ship-to-ship has emerged around the world as the volume of tanker carriers increases. In the case of STS mooring, a safety review should be carried out on other standards since the characteristics are different from the mooring at a typical wharf. However, there is no separate standard about STS in Korea. Therefore, in this study, STS mooring simulation and sensitivity analysis were performed using OPTIMOOR program, a commercial numerical analysis program, to identify STS mooring characteristics. The target sea area is modeled at D2 anchorage of Yeosu Port in Korea, and modeling of the target ship is selected as the case of VLCC-VLCC. Based on this, we tried to establish the standard for STS mooring safety evaluation. Numerical simulation results show that the STS mooring changes depending on the ship load condition, weather condition(wave period and wave height), encounter angle and pre-tension of mooring line. In addition, a risk matrix was created to set the safe external force range in the sea area. It is expected that the mooring characteristics of the STS can be grasped by this result and contribute to the revision of the mooring safety assessment standard.
A case of maxilla implant overdenture using Pekkton telescopic attachment with severe alveolar bone resorption (심한 치조골 소실이 있는 상악 무치악 환자에서 Pekkton telescopic attachment를 이용한 임플란트 피개의치 증례)
- Park, Ha Eun;Lee, Won Sup;Lee, Cheol Won;Lee, Su Young
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- The Journal of Korean Academy of Prosthodontics
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- v.57 no.2
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- pp.189-194
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- 2019
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It is necessary to set the correct occlusal plane and to distribute the occlusal force uniformly considering the state of the opposing dentition during the prosthetic of the single edentulous patient with severe alveolar bone resorption. Implant supported overdenture is superior to complete denture in terms of maintenance and stability, and limited implants are used in fully edentulous patients with high alveolar bone resorption. Telescopic attachments using a newly introduced material based on poly-aryl-ether-ketone (PAEK) have the advantages of typical telescopic copping, excellent abrasion resistance, and are lighter and more economical than conventional implant overdentures. In this case, we restored maxillary arch with a implant retained overdenture using the telescopic attachment made of Pekktonand the mandible was restored with fixed implant prosthesis. Through these procedures esthetic aspects and functional outcomes were satisfactorily achieved.
Evaluation of Decomposition Characteristics of Organochlorine Pesticides Using Thermal Method (열적방법을 활용한 유기염소계 폐농약의 분해 특성 평가)
- Kwon, Eun-Hye;Yoon, Young-Sam;Bea, Ji-Su;Jeon, Tae-Wan;Lee, Young-Ki
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- Journal of Korea Society of Waste Management
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- v.35 no.8
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- pp.744-753
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- 2018
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The Stockholm Convention, which was adopted in Sweden in 2001 to protect human health and the environment, includes regulations for Persistent Organic Pollutant Rotors such as toxic and bioaccumulatives. Currently, there are 28 types of materials. This prohibits and limits the production, use, and manufacture of products. Korea is a member of the Convention, and it is necessary to prepare management and treatment plans to address the POP trends. Thus, we experimentally investigate whether the environmentally stable incineration is achieved when the sample is thermally treated using the Lab-scale (1 kg/hr). The target samples is pesticides in liquid phase and solid phase. In this study, organic chlorinated pesticides and their thermal characteristics were analyzed. We calculated the theoretical air volume based on the element analysis results. Because the interior of the reactor is small, more than 10 times of the air ratio was injected. The retention time was set to at least 4 seconds using a margin. The incineration temperature was
$850^{\circ}C$ and$1100^{\circ}C$ . Thus, we experimentally investigated whether the environmentally stable incineration was achieved when the sample was thermally treated using the Lab-scale (1 kg/hr). We analyzed five types of exhaust gas; the 02 concentration was high, but the CO amount decreased. Complete combustion is difficult because of the small size of the furnace due to the nature of Lab-scale. The organic chlorine-containing pesticide had an average decomposition rate of 99.9935%. Considering the decomposition rates of organic chlorine-containing pesticide in this study, the incineration treatment at over 2 ton/hour, which is typical for a conventional incinerator, is possible. Considering the occurrence of dioxins and unintentional persistent organic pollutants, it can operate at more than$1,100^{\circ}C$ .
Literature review on fractography of dental ceramics (치과용 세라믹의 파단면분석(fractography)에 대한 문헌고찰)
- Song, Min-Gyu;Cha, Min-Sang;Ko, Kyung-Ho;Huh, Yoon-Hyuk;Park, Chan-Jin;Cho, Lee-Ra
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- Journal of Dental Rehabilitation and Applied Science
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- v.38 no.3
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- pp.138-149
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- 2022
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The clinical applicability of ceramics can be increased by analyzing the causes of fractures after fracture testing of dental ceramics. Fractography to analyze the cause of fracture of dental ceramics is being widely applied with the development of imaging technologies such as scanning electron microscopy. Setting the experimental conditions is important for accurate interpretation. The fractured specimens should be stored and cleaned to avoid contamination, and metal pretreatment is required for better observation. Depending on the type of fracture, there are dimple rupture, cleavage, and decohesive rupture mainly observed in metals, and fatigue fractures and conchoidal fractures observed in ceramics. In order to reproduce fatigue fracture in the laboratory, which is the main cause of fracture of ceramics, a dynamic loading for observing slow crack growth is essential, and the load conditions and number of loads must be appropriately set. A typical characteristic of a fracture surface of ceramic is a hackle, and the causes of fracture vary depending on the shape of hackle. Fractography is a useful method for in-depth understanding of fractures of dental ceramics, so it is necessary to follow the exact experimental procedure and interpret the results with caution.
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