• Title/Summary/Keyword: What-if Analysis

Search Result 462, Processing Time 0.028 seconds

A Study on the Software development for the correlation of the water pollution of pollution material analysis (공해물질분석에 관한 수질오탁의 상관성 계산 위한 SOFTWARE 개발에 관한 연구)

  • 택훈
    • Journal of the Speleological Society of Korea
    • /
    • v.15 no.16
    • /
    • pp.38-60
    • /
    • 1987
  • There are BOD(Biochemical Oxygen Demand) and COD(Chemical Oxygen Demand) in the date of the water pollution in the pollution analysis, BOD and COD analysis the result of the analysis. The computer developed the program in the analysis. Went by BOD, the relation conversion equation type of COD, the control chart, the standard deviation, and the coefficient of correlation etc.. for the purpose of the development of the program. There is a purpose by which it is what coefficient of correlation in the development of this program or not if the value (X and Y) of unknow is understood. In the future, if this program is applied the utilization to not only the data is analyzed about the water pollution but also a lot of fields is proposed.

  • PDF

Oral Metagenomic Analysis Techniques

  • Chung, Sung-Kyun
    • Journal of dental hygiene science
    • /
    • v.19 no.2
    • /
    • pp.86-95
    • /
    • 2019
  • The modern era of microbial genome analysis began in earnest in the 2000s with the generalization of metagenomics and gene sequencing techniques. Studying complex microbial community such as oral cavity and colon by a pure culture is considerably ineffective in terms of cost and time. Therefore, various techniques for genomic analysis have been developed to overcome the limitation of the culture method and to explore microbial communities existing in the natural environment at the gene level. Among these, DNA fingerprinting analysis and microarray chip have been used extensively; however, the most recent method of analysis is metagenomics. The study summarily examined the overview of metagenomics analysis techniques, as well as domestic and foreign studies on disease genomics and cluster analysis related to oral metagenome. The composition of oral bacteria also varies across different individuals, and it would become possible to analyze what change occurs in the human body depending on the activity of bacteria living in the oral cavity and what causality it has with diseases. Identification, isolation, metabolism, and presence of functional genes of microorganisms are being identified for correlation analysis based on oral microbial genome sequencing. For precise diagnosis and treatment of diseases based on microbiome, greater effort is needed for finding not only the causative microorganisms, but also indicators at gene level. Up to now, oral microbial studies have mostly involved metagenomics, but if metatranscriptomic, metaproteomic, and metabolomic approaches can be taken together for assessment of microbial genes and proteins that are expressed under specific conditions, then doing so can be more helpful for gaining comprehensive understanding.

The Study on the qualitative research paper and essay done in dental history class. (치의학 역사 수업의 질적 연구 논문과 수필에 관한 연구)

  • Lee, Jue Yeon
    • The Journal of the Korean dental association
    • /
    • v.54 no.12
    • /
    • pp.948-970
    • /
    • 2016
  • For three years, from 2014 to 2016, in dental history class, 263 3rd grade students, attending postgraduate dental school had reviewed current problems of the dentistry and dental care system by adopting historical thinking, in forms of essays, editorials, and papers, The purpose of this study is to know whether writing has educational benefits on students. Analysis of the writings and Student course evaluation showed that it is beneficial. All of the students agreed on submitting a qualitative study project instead of taking midterms on 2016. The approval ratio has increased over the years, on 2014 being 82%, on 2015 being 98%, on 2016 being 100%. For that reason, it is not an assertion to deduce that the students have experienced benefits while developing their genuine thoughts on the current status or problems, exploring what their role is, and what they will face. The chronological thinking had been used throughout the researches to identify what Dentistry and Dentist is. Dentistry have encompassed knowledges of natural sciences, humanities and other fields when needed to perfect itself. In doing so, Dentist achieved independence from doctor or other cooperatives. Research on Korean Dental care system has involved in historical thinking, including historical analysis, inquisition, and historical imagination, insight. etc. If the in-depth evaluation consisting of history and writing is sustained, it would be very effective teaching method.

  • PDF

On Effect of Nonnormality on Size of Test for Dimensionality in Discriminant Analysis

  • Changha Hwang
    • Communications for Statistical Applications and Methods
    • /
    • v.3 no.3
    • /
    • pp.25-30
    • /
    • 1996
  • In discriminant analysis the procedures commonly used to estimate the dimensionality involve testing a sequence of dimensionality hypotheses. There is a problem with the size of the test since dimensionality hypotheses are tested sequentially and thus they are actually conditional tests. The focus of this paper is to investigate in asymptotic sense what happens to the sequential testing procedure if the assumption of normality does not hold.

  • PDF

Analysis of Practical Utilization of Research Outputs in Librarianship and Information Management (문헌정보학분야 연구성과의 활용실태분석)

  • 조인숙
    • Journal of the Korean Society for information Management
    • /
    • v.12 no.2
    • /
    • pp.193-212
    • /
    • 1995
  • Do Korean researchers in the field of library and information science really provide practitioners with knowledge and information needed in their efforts to improve library and information services\ulcorner If so, to what degree do the researchers excercise such intellectual leadership in the profession\ulcorner This study is intended to seek answers to these questions. A sample of 589 administrators and librarians working in public, research and university libraries was requested to respond to the questionnaire posted in June of 1995. Data gathered from the responses were analysed to find how, for what purposes, to what degree, and what kinds of, research outputs in the profession practitioners utilize in their provision of services to users.

  • PDF

The Research in the Study Method of Fashion through Popular Culture Theory (대중문화 이론을 통해 본 복식 문화의 연구방법에 대한 연구)

  • 엄소희;김문숙
    • The Research Journal of the Costume Culture
    • /
    • v.5 no.1
    • /
    • pp.99-123
    • /
    • 1997
  • The purpose of this study is to present the study method in order to analysis the fashion phenomena in ppular culture by popular culture theory. The method of this study is showed the method fo fashion culture, after it was examined that the trends of popular cultural method, the type of Korean popular culture discussion, and the relationship of fashion and popular culture. The results of this study are following as ; 1. Analysis of this study are structuralism stand and culturalism stand, and the application of criticism about the cultural technology in a new stand by means of the composition of Gramscic, A and Foucault. 2. Application of the ethnographic access method as anthroppological approach method about C. Geertz'culture. This si to describe and interpret the practice of subject through directive observation and conduct on a spot, thus is likely to be useful in the fashion study. 3. It needs a historical access method for that purpose, If it applicate Weber's methodology, it will have the use of both meaning interpretation and explanation of cause and effect on the use of both meaning interpretation and explanation of cause and effect on the basis of realistic conditions (historical data), and would appear that the peculiar apportunity of mental (cultural) progressional process became definitive explanation. 4. It must be mad up of the discussion (which is) based on the durability of tradition and culture. It is undeniable that the discussion, which related to popular culture up to the present, showed the disconnectedness of the past tradition and culture, and naturally accepts it's connection to epistemology. The cultural study is a theory interested in what it brings about, what way it's organized and what way it's used. The research of the fashion's connection to popular culture is composed of such topic ; how fashion is produces, how it is consumed, and then, the proposition which is concerned in what meaning it produce is made up of. The regulation of the realm of this research will be to help a researcher explain where to begin and how to do it. Although this cultural study method is more or less quantitative, or despite the expense of the accuracy of statistical analysis, this means that such method of cultural research needs to give attention to both aspects of phenomena and basic problems.

  • PDF

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
    • /
    • v.3 no.4
    • /
    • pp.43-56
    • /
    • 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.

EDUCATIONAL MANAGEMENT SCIENCE/OPERATIONS RESEARCH SOFTWARE: A SURVEY REVIEW

  • Kim, Eyong-B;Kang, Shin-Cheol
    • Journal of Korea Society of Industrial Information Systems
    • /
    • v.5 no.2
    • /
    • pp.70-77
    • /
    • 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.

  • PDF

An Investigation of What Korean Students Valued with regards to Mathematics and Mathematics Learning: A Study with Sixth and Ninth Graders (한국 학생들의 수학과 수학 학습에 대한 가치 인식: 초등학교 6학년과 중학교 3학년을 중심으로)

  • Pang, JeongSuk;Cho, Sooyun;Seah, Wee Tiong
    • The Mathematical Education
    • /
    • v.55 no.4
    • /
    • pp.467-484
    • /
    • 2016
  • What an individual values and regards as important has a significant impact on his or her learning. Classroom instruction would be even more effective if what the teacher regards as important in his or her pedagogical practice are aligned with what students regard as important too. Given this background, this study sought to find out what Korean students valued about mathematics and mathematics learning using a questionnaire developed by Seah (2005). The participants were 409 students from Grade 6 and 407 students from Grade 9 in Korea. The results of this study showed that students put the biggest emphasis on ideological aspects of mathematics, specifically rationalism, among mathematical values. The students also valued product, computation, process, exposition, and recalling among values related to the learning of mathematics. A comparative analysis between the two groups of students showed that sixth graders tended to think more positively with regards to each value than ninth graders. On the basis of these results, this paper raises some issues about students' values in mathematics learning. It also suggests that teachers need to consider what students value and regard as important in their mathematics learning to bring about even more effective instruction.

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
    • /
    • v.61 no.3
    • /
    • pp.122-138
    • /
    • 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.