• 제목/요약/키워드: What-If

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Reduction of Inadequate Sample Collection (부적합 검체 감소방안)

  • Kim, Byeong-Hak;Myeong, Hwa-Ryeon;Lee, Jeong-Gyu;Park, Su-Hui;Lee, Jae-Hyeok
    • Journal of Korea Association of Health Promotion
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    • v.4 no.1
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    • pp.115-124
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    • 2006
  • Basically, diagnosis is a comprehensive judgement of the biochemical data which were collected from the patient directly. Therefore, no matter what kinds of well-managed data control are there, if data sample itself is not perfectly appropriate for any reason. we can not rule out high possibility of misunderstanding or wrong diagnosis. Among many possible reasons inadequate sample were collected maybe three situation and circumstances could be assumed as follows. 1. Client did not know what they are supposed to do for sampling 2. Technicians are to qualified or less-experienced on the job 3. Wrong managing or careless treat of the biochemical data sample If it is true, we could manage these problems to be solved through the information sharing and education. In order to verify this hypothesis, actually 5,800 cases were studied from January to August this year. Owing to the thorough education the rate of unappropriated samples reduced to 0.4% from 1.2%. This outcome strongly support the hypothesis of the mutual relation between the proper sample and well-designed education in advance. The importance of information sharing on right process of sample collection should be emphasized.

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A study on a schedule-cost analysis model for defense R&D project planning (국방 R&D프로젝트의 일정-비용분석모델의 연구)

  • 황홍석;류정철;정덕길
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1996.04a
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    • pp.213-216
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    • 1996
  • R'||'&'||'D project management is a process of decisions concerned with the achievement of goals of objectives. Especially, defense R'||'&'||'D project planning is the key in the successfull management of defense development. The defense project managers are constantly having to perform "what if\ulcorner" exercise, such as what if the project is extended out for an additional cost\ulcorner In this reserch, we developed a schedule-cost analysis model based upon Critical Path Method(CPM) and Venture Evaluation and Review Technique(VERT) for schedule-cost trade off analysis defense R'||'&'||'D projects. In the first step, a deterministic model is developed as a heuristic which deterministic model is developed as a heuristic which determines the schedule extension and reduction cost as a function desired schedule. In the second step, a stochastic network simulation model is developed to analyse the project risk (sucess and failure). The expected time and cost can be determined for desired schedule under the assumptions of stochastic arc data (time and cost) with a various precedence relationships. This model provides the defense R'||'&'||'D managers with an estimated and expected cost for curtailing or extending a project a given amount of time. The effectiveness and efficiency of the proposed methods, a heuristic and stochastic networks simulations, have been demonstrated through examples.

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The Impact of Increased Credit Card Usage on Costs Incurred by Merchant Establishments in Singapore

  • Seetharaman, A.;Patwa, Nitin;Niranjan, Indu;Kavuri, Srinivas Phani
    • The Journal of Asian Finance, Economics and Business
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    • v.3 no.4
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    • pp.43-56
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    • 2016
  • The research aims to help merchant acquiring institutions gain a better insight on what merchant establishments in the Singapore market perceive of the costs they incur due to credit card acceptance. The research attempts to study the Singapore market and establish if increased credit card usage does increase costs for the merchant establishments that accept credit cards, this will help to acquire institutions in Singapore have a better understanding of merchant perceptions and what drives or deters credit card acceptance in the Singapore market. The survey was based on an interview of merchant establishments and the views of the merchants and was not based on their financial data. As a first step, the variables used in the survey were tested for interdependence using Chi-square tests; subsequently data reduction using factor analysis was performed and finally linear regression to establish a relation between dependent and independent variables. Merchant establishment believe accepting credit cards and increasing volume is costlier compared to another form of payment, but have mixed awareness about interchange fee. It also indicated that interchange fee and cardholder benefits are independent of the merchant establishments. The study only broadly attempts to gauge merchants view if increased credit card usage has increased costs for them.

The Paradoxes of Confirmation Revisited (입증의 역설 다시 보기)

  • Choi, Wonbae
    • Korean Journal of Logic
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    • v.20 no.3
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    • pp.367-390
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    • 2017
  • Much of literature on the paradoxes of confirmation has been focused on the problems raised by the fact that a nonblack nonraven confirms the hypothesis that every raven is black. In this paper I would like to emphasize that more interesting problems are still waiting to be explained, if we notice that a black nonraven confirms the raven hypothesis as well. For this I examine what Hempel exactly means by the paradoxes of confirmation, and show that the previous discussions on the paradoxes were at most partial solutions. Then I argue that Hempel presupposes the so-called 'converse consequence condition' regarding confirmational evidence. Finally I discuss what impact is made on the Bayesian solution to the paradoxes, if we accept a more faithful interpretation to Hempel.

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EDUCATIONAL MANAGEMENT SCIENCE/OPERATIONS RESEARCH SOFTWARE: A SURVEY REVIEW

  • Kim, Eyong-B;Kang, Shin-Cheol
    • Journal of Korea Society of Industrial Information Systems
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    • v.5 no.2
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    • pp.70-77
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    • 2000
  • The purpose of this research was to investigate instructors perceptions on the use of quantitative educational software packages in management science and operations research (MS/OR) related courses. The investigation was conducted using a questionnaire survey of MS/OR instructors at US universities. The authors found that instructors were satisfied in the use of existing MS/OR educational software packages to effectively support their teaching in terms of computational speed, number of models offered, size of problems, and accuracy of algorithms. However, many instructors were not satisfied with the tutoring capability of packages such as 'what-if'analysis, graphics availability, explanation capacity, readability of output, and ease of use.

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N-ary Information Markets: Money, Attention, and Personal Data as Means of Payment

  • Stock, Wolfgang G.
    • Journal of Information Science Theory and Practice
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    • v.8 no.3
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    • pp.6-14
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    • 2020
  • On information markets, we can identify different relations between sellers and their customers, with some users paying with money, some paying with attention, and others paying with their personal data. For the description of these different market relations, this article introduces the notion of arity into the scientific discussion. On unary information markets, customers pay with their money; examples include commercial information suppliers. Binary information markets are characterized by one market side paying with attention (e.g., on the search engine Google) or with personal data (e.g., on most social media services) and the other market side (mainly advertisers) paying with money. Our example of a ternary market is a social media market with the additional market side of influencers. If customers buy on unary markets, they know what to pay (in terms of money). If they pay with attention or with their personal data, they do not know what they have to pay exactly in the end. On n-ary markets (n greater than 1), laws should regulate company's abuse of money and-which is new-abuse of data streams with the aid of competition (or anti-trust) laws, and by modified data protection laws, which are guided by fair use of end users' attention and data.

Army Future Experts' Prediction about Near-Future Climate X-event

  • Sang-Keun Cho;Ji-Min Lee;Eui-Chul Shin;Myung-Sook Hong;Jun-Chul Song;Sang-Hyuk Park
    • International Journal of Advanced Culture Technology
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    • v.11 no.2
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    • pp.196-201
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    • 2023
  • The future is complex and unpredictable. In particular, it is unlikely to occur, but once it occurs, no one knows how it will affect our society if X-event, which has a tremendous impact, is created. This study was conducted only in the climate field to offset the ripple effect of this X-event, and was conducted through in-depth interviews with experts from the Korea Army Research Center for Future & Innovation and the Army College. As a result, it was possible to explore what factors would trigger X-event from their discourse and what X-event would be newly created by spreading them to other fields. Starting with this study, if we accumulate the discourse of experts in various fields such as population, science and technology, as well as climate, and other fields other than the Army, we can predict X-event and offset the threats that may arise.

Health Knowledge, Health-Guidance Execution and Health-Education Needs of Parents of Preschoolers (학령전기 아동 부모의 아동 건강지식 정도, 건강습관 지도이행도 수준 및 건강교육 요구도 조사)

  • Seo, Hyun-Mi;Jeon, Mi-Yang;Choi, Na-Young
    • Journal of Korean Public Health Nursing
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    • v.23 no.2
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    • pp.207-218
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    • 2009
  • Purpose: In an attempt to develop a parental health improvement education program for day care children, survey questions were devised to measured the extent of parental health knowledge, health-guidance execution and needs. Method: Participants were 727 parents whose children attended daycare centers in J province informed consent was provided prior to participation. Result: Respondents were overwhelmingly (91.6%) mothers. Questions with high percentage of incorrect answers were "What should I do if my child swallows harmful drugs, bleach or detergents?" (98.1%) and "What should I do if insects or other bugs enter my child's ear?" (96.6%). In most cases, parental health-guidance execution exceeded 90% except in response to the survey question "Does your child have a dental check-up every 6 months" (51%). Taken together, parental education is necessary concerning growth and development (12.8%), nutrition (12.1%), healthy life styles (10.3%) and general health issues (10.0%). Conclusions: Parental health knowledge about preschooler's health varies with degree of income, education and type of employment. Consideration of these variables is important in a parental health education program.

The Seller's Obligation to Deliver Goods under CISG (국제물품매매협약상 매도인의 물품인도의무)

  • HEO, Hai-Kwan
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.77
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    • pp.1-22
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    • 2018
  • Under CISG the places of delivery by the seller of the goods are: If the seller is not bound to deliver the goods at any other particular place and the contract of sale involves carriage of the goods, the seller has to hand the goods over to the first carrier for transmission to the buyer. However, if the contract does not involve carriage of the goods, he has to place them at the buyer's disposal at the place where, at the time of the conclusion of the contract, both the seller and the buyer knew that the goods were at, or were to be manufactured or produced. This rule applies when the contract relates to specific goods, or unidentified goods to be drawn from a specific stock or to be manufactured or produced. Finally, in ant other cases the seller has to place the goods at the buyer's disposal at the place where the seller had his place of business at the time of the conclusion of the contract. As to time of delivery, if a date is fixed by or determinable from the contract, the seller has to deliver the goods on that date. If a period for delivery is fixed by or determinable from the contract, he has to deliver the goods on any date within that period. In this way the seller chooses the specific date of delivery within that period, while circumstances indicate otherwise that the choice is to be made by the buyer. There no such date or period, the seller has to deliver the goods within a reasonable time after the conclusion of the contract. If the seller delivers the goods before such the date or period, the buyer is entitled to take delivery or refuse to take delivery. Under these backgrounds of provisions of CISG, this study first suggests the concepts of the handing over of the goods by the seller to the carrier and the placing them at the buyer's disposal. Then it goes further to looks into exactly where and when the delivery has to occur. In these context, this study more examines what happens if there is a breach of contract by the seller in connection with the delivery. That is, if the seller delivers non-conforming goods or at wrong place; what if there is a partial delivery or a premature delivery.

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A Study on the Kasaya Remains of Great Monk Seo San and Great Monk Byeok Am, from the Middle Period of Joseon Dynasty (조선 중기 서산대사와 벽암대사의 가사 유물에 대한 연구)

  • Kang, Sun-Jung;Cho, Woo-Hyun
    • Journal of the Korean Society of Costume
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    • v.61 no.3
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    • pp.122-138
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    • 2011
  • The present research aims to consider the real remains of 2 suits of Kasaya owned by the Hwaeom Temple(華嚴寺) based on research results about Kasaya in the meanwhile. The present research on 2 suits of remains which are Royal gifts given to monk soldiers in case of a national crisis of the Joseon Dynasty has a big meaning in examining characteristics of Kasaya and grasping characteristics and structure of the 17th century's Kasaya of the Joseon Dynasty through dense survey and analysis according to components. If examining characteristics of Kasaya, the Kasaya of the Great Monk Seo San(西山) is composed on the basis of an initial form of Sun and Moon Light Patch's generation and the Kasaya of the Great Monk Byeok Am(碧巖) has a form that is separately attached through production of embroidery patch as a process of being settled down. If examining what surrounds gold thread in the girth and expression of Sumeru and Chaeunmun(彩雲紋), the composition of a form similar to an insignia badge, so because this is a Royal gift, this can be estimated as being analyzed in a Buddhism aspect by devising a design from the insignia badge at the time, with a meaning like an official uniform given to a monk. Although the insignia badge is a square, it seems that the Sun and Moon Light Patch is made as a rectangular form corresponding to the structure of Kasaya. In addition, it is thought that what the Samjoko(三足烏) idea which is a symbol of the Sun based on Buddhism and Taoism is used together with Yijoko(二足烏) even in expression of the Sun and Moon Light Patch in the Joseon Dynasty which was a Confucian country has a relationship with what a bird was expressed in the insignia badge of winged animals.