• 제목/요약/키워드: product warranty

검색결과 75건 처리시간 0.022초

사용현장 데이터를 이용한 군 운용 환경에서의 상용품목 신뢰도 예측 (Estimating the Reliability of Commercial Products in a Military Operational Environment Utilizing Field Data)

  • 임태진;박준수;고병성;성인철;조문수;김성철
    • 한국국방경영분석학회지
    • /
    • 제36권1호
    • /
    • pp.77-90
    • /
    • 2010
  • 상용품목을 군용환경에서 적용하면 저비용, 빠른 조달시간, 기술적 발전 등 여러 가지 이점이 있다. 반면에 상용 제품, 표준, 관행 등이 군용 요구조건에 미달됨으로 인하여 신뢰도 및 병참 상의 문제가 발생할 수도 있다. 또한 상용 공급자들은 군용 병참을 지원하는데 필요한 기술적 자료를 제공한 경험이 거의 없을 수도 있다. 보다 많은 회사들이 제품 관련 데이터 수집 시스템을 구축하고 있어 상당한 분량의 사용현장 보증 데이터가 수집되었다. 사용현장 데이터는 전형적으로 주기별 판매량과 클레임 건수로 구성된다. 본 연구에서는 군용환경에서 작동하는 군용설비, 군용환경에서 작동하는 상용설비, 상용환경에서 작동하는 상용설비 등 세 가지 유형의 데이터를 고려하였다. 최대우도 기준 및 최소제곱 기준에 기초한 제품 신뢰도 추정 방법을 제안하고, 각 유형의 데이터에 대한 추정 모형을 구축하고 상용환경에서 군용환경으로 전환하는 신뢰도 변환방법을 제안하였다. 사례연구를 통하여 제안된 방법의 적용 가능성을 검증하였다.

국제물품매매계약에서 포장의 계약적합성에 관한 연구 (A Study on Conformity of Packing in International Sales of Contract)

  • 김재성;박세훈
    • 무역상무연구
    • /
    • 제54권
    • /
    • pp.123-144
    • /
    • 2012
  • Seller shall deliver the goods with a perfect condition of packing or container in international trade. Unless otherwise seller shall warranty that the goods arrive at destination with a safe and economic value. Buyer may ask packing is to be made in specific condition or refuse to accept when the packing is not made in accordance with trade customs between among merchants. Especially packing is to be considered under the local law and process. Sometimes tax will be added to specific condition of packing for example glasses, metal sheet or others. Warning signs shall be included as form of both words and diagrams, and be in form of ensuring understanding in the local market. Wide range of warning signs can be used for communications and understanding of packing. Packing of a product can usefully symbolize a range of product information, or any relevant warnings, and give an opportunity for displaying messages of promoting the company and the goods. The seller may choose the best method to maintain its value but find a way to reduce packing cost, size for convenience during delivery, design, and local customs. There are many things to be considered for packing to seller. The purpose of packing is to protect the goods itself and to maintain its economic value during storage, delivery, transshipment, and distribution to end users.

  • PDF

Economical selection of optimum pressurized hollow fiber membrane modules in water purification system using RbLCC

  • Lee, Chul-sung;Nam, Young-wook;Kim, Doo-il
    • Membrane and Water Treatment
    • /
    • 제8권2호
    • /
    • pp.137-147
    • /
    • 2017
  • A water treatment utility in South Korea operates a large system of pressurized hollow fiber membrane (PHFM) modules. The optimal selection of membrane module for the full scale plant was critical issue and carried out using Risk-based Life Cycle Cost (RbLCC) analysis based on the historical data of operation and maintenance. The RbLCC analysis was used in the process of decision-making for replacing aged modules. The initial purchasing cost and the value at risk during operation were considered together. The failure of modules occurs stochastically depending on the physical deterioration with usage over time. The life span of module was used as a factor for the failure of Poisson's probability model, which was used to obtain the probability of failure during the operation. The RbLCC was calculated by combining the initial cost and the value at risk without its warranty term. Additionally, the properties of membrane were considered to select the optimum product. Results showed that the module's life span in the system was ten years (120 month) with safety factor. The optimum product was selected from six candidates membrane for a full scale water treatment facility. This method could be used to make the optimum and rational decision for the operation of membrane water purification facility.

A Study on the Activation Diagnosis of QCC Activities in Korean Industries

  • Rho Hyung-Jin;Chang Myung-Bok
    • 한국품질경영학회:학술대회논문집
    • /
    • 한국품질경영학회 1998년도 The 12th Asia Quality Management Symposium* Total Quality Management for Restoring Competitiveness
    • /
    • pp.333-338
    • /
    • 1998
  • QCC(Quality Control Circle) is a labor or employee group that regularly meets to discuss ways of improving product quality. Its goal is to develop and present various ways for employees to solve problems, generate and implement new ideas and gather information that would prove helpful in both areas. It will also educate employees of the responsibilities that a quality warranty will bring forth. This study conducted research on the QCC activity of Korean manufacturers in two primary ways: first part consisted of items used to diagnose QCC activity, Second part consisted of 8 items used to investigate goals and their effectiveness, obstruction and organization. Accordingly, main goal of our research was to find ways to improve through QCC.

  • PDF

KC인증이 기업경영에 미치는 효과 : 공산품을 중심으로 (A Study on the Effects of KC Certification on Corporate Management - focusing on Consumer Product)

  • 김재만;김광수
    • 대한안전경영과학회지
    • /
    • 제17권3호
    • /
    • pp.307-317
    • /
    • 2015
  • This study was to identify the effect of the satisfaction of certification, the educational use of the company offering certificate, the system of confirmation of the same model and the demographic aspect on the companies to see if compulsory certification(KC certificate) has negative effects on company management. First, the satisfaction of certification could reflect positive influences on company management. Second, there is no statistical significance in the education from the company offering certificate as a result of analyzing relationships but education is required and has an effect on improving quality according to the result of frequency analysis. Last, the system to declare by identifying the same model has a difference in significance in sales account, the development of products and warranty service for products.

다파장 IR과 NIR 모듈의 평균 수명 예측에 관한 연구 (Study on the MTTF of Multi Wave Lengths IR and NIR LEDs Module)

  • 김동표;김경섭
    • 한국전기전자재료학회논문지
    • /
    • 제34권1호
    • /
    • pp.44-49
    • /
    • 2021
  • Recently, infrared (IR) and near-infrared (NIR) light-emitting diodes (LEDs) were widely used for home medical applications owing to its low output power and wide exposed area for curing. For deep penetration of the light under the skin, multiple LEDs with wavelengths of 700~10,000 nm were located on a flexible printed circuit board. When multiple wavelengths of LEDs were soldered on a circuit board, the lifetime of LED module highly depends on LEDs with a short lifetime. The mean time to failure (MTTF) was able to calculate with the experimental results under high temperature and the Arrhenius model. The results of this study could help companies to approve the warranty of LED modules and its product.

국제거래(國際去來)에 있어서의 제조물책임(製造物責任)과 그 대응(對應)

  • 강이수
    • 한국중재학회지:중재연구
    • /
    • 제10권1호
    • /
    • pp.92-113
    • /
    • 2000
  • Products liability refers to the liability of any or all parties along the chain of manufacture of any product for damage caused by that product. This includes the manufacturer of component parts (at the top of the chain), an assembling manufacturer, the wholesaler, and the retail store owner (at the bottom of the chain). Products containing inherent defects that cause harm to a consumer of the product, or someone to whom the product was loaned, given, etc., are the subjects of products liability suits. The goal of products liability system should be to maximize consumer welfare by efficiently providing just compensation for injuries incurred and deterring future injuries without unreasonably impeding the supply of the goods and services to consumers. Some advanced countries, apart from relying on products liability systems, also apply other policies and legislation directly aimed at the safety of the consumer. The application of general safety policies as well as products liability rules is not costless. An efficient system will not eliminate risk from society. An efficient system ... that maximises consumer welfare ... maximises the benefits while minimising the costs. Products liability claims can be based on negligence, strict liability, or breach of warranty of fitness depending on the jurisdiction where the claim is based. In view of international business and law circumstances, it should be stressed that international enterprises in Korea should consider how to cope with the situation of international transaction. International enterprises should have a correct perception about products liability which is to contribute the stabilization and improvement of the people's life and the sound develpement of the national economy. Products liability system creates incentives that influence behaviour and performance in ways that are desirable, such as more diligent monitoring to prevent defective products from reaching the market-place. At the same time, any liability system will impose burdens that are undesirable, such as greater costs imposed on business and consumers and reduced avaiability of consumer goods. The concern for society is to balance. The ideal situation is where the cost imposed on producers of goods and services pushes them to a desirable level of care but not so far that producers reach undesirable level of caution that may deprive consumers unnecessarily of the benefits from new and innovative products.

  • PDF

제조업 경쟁사 분석을 통한 품질 개선 전략 수립: 대시보드 카메라 시장에 적용 (Quality Improvement Strategy Development based on Competitor Analysis of Manufacturing Companies: Application to the Dashboard Camera Market)

  • 강창동;최일영;김재경;박재승
    • 한국IT서비스학회지
    • /
    • 제21권2호
    • /
    • pp.27-41
    • /
    • 2022
  • In a fiercely competitive environment, quality is a key factor that enables dashboard camera makers to maintain their competitive advantage. Quality affects consumer satisfaction, brand loyalty, and firm performance. Therefore, to remain competitive, it is important that manufacturers maintain product quality that meets consumer expectations. To this end, it is necessary to investigate customer preferences and product performance in terms of product quality and to properly allocate resources to improve the quality level such that the firm can maintain a competitive advantage. In this paper, we proposed the various ways in which manufacturing firms can determine which quality dimensions need improvement in order to secure competitiveness. To this end, we analyzed a case study of Urive to develop a quality improvement strategy through importance performance competitor analysis (IPCA). Urive's IPCA results showed that 14 quality dimensions, namely performance, size, price, ease of use, country of origin, manufacturer, brand, product certificate, warranty, distribution channel, market share, reliability, durability, and conformance, were not absolutely competitive compared with those of Mando, Inavi, and Finevu. In terms of color, Urive had an absolute competitive advantage over Mando, but not Inavi and Finevu. Urive's appearance was more competitive than Mando's, but not Inavi's and Finevu's. In terms of advertisement and serviceability, Urive was absolutely less competitive than Mando and Inavi, but had a competitive advantage over Finevu. Therefore, it is necessary to put resources and time as the first priority for performance, reliability, and durability, which have a large performance difference in common among the three brands. The quality dimensions in which resources and time need to be put in second place are price and ease of use, which have a large performance difference in common among the two brands.

온라인 다이어트 식품 광고를 통해 본 광고 규제와 소비자피해와의 관계 (Relations of Advertising Regulations and Consumer Damages: Focusing on Weight-Loss Food Advertisements on the Internet)

  • 김혜진;이승신
    • Human Ecology Research
    • /
    • 제54권1호
    • /
    • pp.27-43
    • /
    • 2016
  • This study initiates from the question of whether current advertising regulations are appropriate to be applied to the market. It confirms the relationship between misleading online advertisements of weight-loss food and consumer damages. This study argues that it is necessary to enforce monitoring and regulating (strengthening monitoring) for situations where misleading advertisements are exposed in the market with subsequent consumer damages. However, deregulation is needed for advertisements exposed in the name of misleading advertisements but with no consumer damages. In conclusion, the regulations of current weight loss foods are properly established $vis-{\grave{a}}-vis$ the market situation. However, misleading advertisements are prevalent for all regulated types: Type I (product quality and effect), Type II (endorsement and warranty), Type III (ways to use and safety), Type IV (comparison and superiority), and Type V (company information). Promotion targeting businesses, market monitoring and control are necessary to ensure that advertising regulations (which have existed only as an institution) can be appropriately applied. It is also confirmed that 'comparison advertising' (applicable to Type IV where consumer damages were not shown compared to other regulations) does not have an actual effect as a consumer protection regulation that should be considered in regulation revisions. Consumers also did not recognize Type III and V in the purchasing stage while consumer damages were demonstrated; consequently, this implies that consumers need to check and become attentive to these types.

Evaluation Criteria of Reliability on Transmission Control Unit for Passenger Car

  • Choi, M.;Ryu, S.;Lim, J.H.;Jeong, H.S.
    • International Journal of Reliability and Applications
    • /
    • 제11권1호
    • /
    • pp.55-67
    • /
    • 2010
  • There has been a recent upsurge in demand for the improvement of car reliability in the Northern American which is the primary market of South Korea automobile industry. It has been required that the warranty for transmission control unit for passenger cars directly related to passenger safety or security should be extended for 10 years and 160,000 km. In this paper, the test method for reliability and evaluation criteria is presented to evaluate the reliability on the automatic transmission controller. Reliability certification test can be roughly divided into two types: a quality test and life assessment test and a quality test can be subdivided into a basic performance test and environmental resistance test. There are 3 types of tests on the performance test for automatic transmission controller and environmental resistance test is composed of 14 items. Life test is performed with only the product passed this quality test. In this study, operation limit test at the high-temperatures, accelerated life test under specific temperature and accelerated life test for 2 or 3 stress levels are shown as a way for life test.

  • PDF