• Journal of applied mathematics & informatics
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• v.41 no.6
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• pp.1181-1191
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• 2023

This paper investigates Young inequalities for matrices, a problem closely linked to operator theory, mathematical physics, and the arithmetic-geometric mean inequality. By obtaining new inequalities for unitarily invariant norms, we aim to derive a fresh Young inequality specifically designed for matrices.To lay the foundation for our study, we provide an overview of basic notation related to matrices. Additionally, we review previous advancements made by researchers in the field, focusing on Young improvements.Building upon this existing knowledge, we present several new enhancements of the classical Young inequality for nonnegative real numbers. Furthermore, we establish a matrix version of these improvements, tailored to the specific characteristics of matrices. Through our research, we contribute to a deeper understanding of Young inequalities in the context of matrices.

• Mass Spectrometry Letters
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• v.14 no.3
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• pp.57-78
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• 2023

Understanding the chemical composition of the brain helps researchers comprehend various neurological processes effectively. Understanding of the fundamental pathological processes that underpin many neurodegenerative disorders has recently advanced thanks to the advent of innovative bioanalytical techniques that allow high sensitivity and specificity with chemical imaging at high resolution in tissues and cells. Mass spectrometry imaging [MSI] has become more common in biomedical research to map the spatial distribution of biomolecules in situ. The technique enables complete and untargeted delineation of the in-situ distribution characteristics of proteins, metabolites, lipids, and peptides. MSI's superior molecular specificity gives it a significant edge over traditional histochemical methods. Recent years have seen a significant increase in MSI, which is capable of simultaneously mapping the distribution of thousands of biomolecules in the tissue specimen at a high resolution and is otherwise beyond the scope of other molecular imaging techniques. This review aims to acquaint the reader with the MSI experimental workflow, significant recent advancements, and implementations of MSI techniques in visualizing the anatomical distribution of neurochemicals in the human brain in relation to various neurogenerative diseases.

• Journal of The Korean Association For Science Education
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• v.27 no.8
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• pp.693-698
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• 2007

Science hands-on exhibits are increasingly popular, especially during vacation time. These exhibits hire guides to help visitors to understand the contents. In this study, the qualifications of the guides are investigated through interviews with the producers who run the exhibit. There were two main questions the researcher was interested in during the interviews. One was the importance of the science background of the guides. The second was the characteristics of guides that the producers consider important for successful exhibits. The results show that a science background is not an important qualification in the view of most of the producers. Many factors other than science, such as accountability or social skills, were considered to be of greater importance than a background in science.

• Water Engineering Research
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• v.3 no.2
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• pp.93-111
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• 2002

In this paper, mixing characteristics and dilution of the merging buoyant discharges from array of multiple jets has been extensively studied in the hydraulic model experiments. New equations for dilution, which include the merging effects correctly, were derived. Experiments were constructed in a 20-m long, 4.9-m wide and 0.6-m deep flume, and the model diffuser was manufactured to indicate the typical characteristics of the existing ocean wastewater outfall in South Korea. Buoyant discharge from the diffuser was reproduced using heated water. Water temperature was measured using CC-Type thermocouple sensors, which were connected to a 40-channel data logger. Experimental results show that merging between ports in a particular riser is dependent upon the discharge densimetric Froude number, whereas merging between two ports which are facing each other at 90$\circ$ at the adjacent risers is dependent upon the discharge densimetric Froude number and distance from the port and port spacing. Centerline dilution increase with distance from the port outlet until two plumes has merged. However, after merging occurs, increase of the centerline dilution almost stops. Further distance from the position where merging occurs, centerline dilution increases again.

• Korean Institute of Interior Design Journal
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• v.21 no.4
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• pp.181-189
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• 2012

Creativity is one of the most popular keyword used in today's society due to it's important role as the major post modern economic drive force. Richard Florida calls the group of people who work in this creative industry as the 'Creative Class' and this theory has affected many organizations and cities. However, little is known about the work environment of this class, so many designers find it difficult to understand how they may encourage creativity in the actual physical setting. Therefore the purpose of this research is to understand the major characteristics of this 'Creative Class' and their working styles in order to develop a theoretical framework for the creative work environment and present a case study of NHN Company main office building. The researcher has indicated three major characteristics of the creative work environment such as 'Individuality', 'Socialization', and 'Experiential' and through the developed framework found that in NHN building 'Socialization' through overlapping territories and programs, spatial openness were used as key methods of encouraging creativity. It is hoped that this research may be used as a useful guide in designing various types of creative work environment for the future.

• Journal of the Speleological Society of Korea
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• no.93
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• pp.69-78
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• 2009

Many researcher contended that the tourism types of modern society has changed to 'experience tourism' from 'seeing tourism' recently. Therefore attempts to add edutainment factors in the original tour program has been introduced in cases of tourism cave. As we can see the Hwaam-cave in Jungsun-gun, by preparing with various pavilions which are well-matched with tourism cave. So, the purpose of this study is to the presentations of the activation programs that having on characteristics of edutainment tourism resources for tourism cave. Thus, first of all for establishing of this study, we examined the characteristics and values as tourism resources of cave and then observed the roles and examples of edutainment tourism cave, finally suggested the activation programs that can be shaped for edutainment tourism of cave.

• Journal of Advanced Marine Engineering and Technology
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• v.29 no.1
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• pp.42-48
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• 2005

Because Impinging jet has excellent heat & mass transfer characteristics. it has many advantages of cooling. drying. etc and widely applied at industrial fields. Therefore, there have been many experimental investigations and theoretical studies about Impinging jet. The present study is about a cooling characteristic by Impinging jet for a Square Plate on Duct and investigated this characteristic through three-dimensions numerical analysis, using FLUENT. As the result of this study, heat transfer effect is the most appropriate condition when the ratio of distance is 6 between nozzle exit diameter and heat source. diameter of duct is 90mm and height of duct is 60mm. In addition. under the influence of injected jet. stagnant fluid flow into free jet field and this affected the whole flow field. So the shape of duct is a important factor and the researcher confirmed the need of investigation about duct.

• Journal of The Korea Institute of Healthcare Architecture
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• v.17 no.2
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• pp.17-25
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• 2011

This study analyzes the research trends and evaluates the specialized characteristics of the journal of Korea healthcare architecture. Total 308 papers from 1995(Vol.1) to 2010(Vol.16) were analyzed by following seven criteria: (1) research focus by analyzing the key words of each paper; (2) research method(qualitative and quantitative research); (3) research nature(practical/prescriptive vs. theoretical/normative); (4) research target(healthcare, welfare, and others); (5) researcher characteristics(position, major, and numbers of author); (6) supported research(in-university, out-of-university, and out-of-pocket funds); and (7) international study. The research findings include followings. First, research focus lies in the function of healthcare and welfare facilities. Second, qualitative method is the dominant form of research. Third, practical/prescriptive research continuously increases. Fourth, research target is mainly a healthcare facility, while the research of welfare facility is increasing. Fifth, the considerable numbers of first author are graduate students. Sixth, out-of-university research funds increase. Finally, international studies related to Japan are mostly published.

• Korean Institute of Interior Design Journal
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• v.22 no.4
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• pp.41-51
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• 2013

Lately in many cases, Spaces are designed by stimulating user's sensibility, emotion, psychological software over based on the user behavior and purpose of space. Because space is not only practical using and use purpose but also the place for expressing ourselves by experiences. But space is a physical thing. so we need to arrange a structure of abstract and formless source of design by sophisticated grammaticalization. Especially storytelling of that abstract thing have characteristics of relation, process among users and space. because storytelling is focused on the discourse of stories and relationship record of that discourses. So this is used by expression device for user's emotion things and subjects in numerous cases. And storytelling is the basic, important element for user's experience in a space. By the way, Overlapping is also basic element for being possible to make experiences by concrete thing. that is because, Overlapping is layering phenomenon of some objects. Overlapping is made distance, distance make depth, and this relations take us an experience. Finally storytelling, Overlapping and space of experience are relation of cause and effect. So in this thesis, researcher looks for the relation characteristics between storytelling and overlapping by experience. and makes the abstract source into concrete and sophisticated formular.

• The Research Journal of the Costume Culture
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• v.16 no.1
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• pp.100-114
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• 2008

The purpose of this study was to analyze the characteristics of supermodern fashion designer's work, which is shown by responding to supermodern environment where non-spaces such as road, railroad and airport are surplus in modern city environment. For the study, the researcher used existing study and specialized book basically and analyzed photograph materials by selecting them in specialized fashion book, internet site and designer's homepage. The results of this study showed that supermodern fashion design is the functional fashion responding to the change of time and space concept of supermodern society directly. As the common points of supermodern designer's works, first, they try to create private space enabling wearer to cope with risk caused by the environmental change and transitional space by adding architectural factor to fashion. Second, they display the design with protective function and metaphorical expression of concealment and deception in the supermodern environment where nonspace is increasing. Third, designers search the functional design from the aspect of fabric and detail while intending the technology in order to cope with supermodern environment.