• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.2
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• pp.328-335
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• 2008

The system performance of NRZ format in WDM transmission system with lumped dispersion management(DM) and optical phase conjugator(OPC) is compared with that of RZ format. It is confirmed that eye opening penalty(EOP) of both NRZ and RZ format in WDM transmission system having lumped DM combined with OPC are greatly improved than those in WDM system with only OPC. The optimal net residual dispersion(NRD) in the case of RZ format is decided to so small value that path-averaged dispersion coefficient become almost zero, while that in the case of NRZ format is decided to larger value, for the best improvement of overall WDM channels. It is also confirmed that EOP in the case of RZ format is more improved than that in the case of NRZ format in lumped DM with optimal NRD. This is resulted from that lumped DM combined with OPC suppress the signal distortion due to intrachannel four-wave mixing(IFWM) and intrachannel cross phase modulation(IXPM). Consequently, lumped DM combined with OPC proposed in this paper is effective technique to mitigate intrachannel nonlinearities in WDM transmitting RZ format.

• Korean Journal of Heritage: History & Science
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• v.42 no.3
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• pp.132-153
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• 2009

A lotus flower pattern of the shape of straight and pointed petals has the forms whose lotus flowers are pointed, and is one of the representative forms of lotus flower pattern of Baekjae along with a round and a triangle protruded style. This style of lotus flower pattern was applied to roof-end tiles, halos of Buddhist images, containers of Buddha's bones, head supports, etc. from the Hanseong period to the Sabi period of Baekjae. However most of lotus flower patterns that remain today were used for the tiles of the Sabi period. Many of them were produced under the influence of the Northern Dynasties and the Southern Dynasties of China, and of Goryeo, which implies the active cultural exchange of Baekjae at that time. Among the present lotus flower patterns of the shape of the straight and pointed petals, that of the earliest time is from Gyeongdang district of Poongnab mud castle and belongs to the mid-fifth century. However there is a higher chance that the gradual subsequent excavation and research will find some tiles of the earlier period and other styles can also be unearthed.

• Journal of Korean Philosophical Society
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• no.88
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• pp.307-335
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• 2010

Gemäß der lernerorientierten Didaktik und Methodik des deutschen neuen Schulfaches "Praktische Philosophie" studiert die vorliegende Forschung die Unterrichtsmethoden zum fruchtbaren Philosophie-, Essay- und Ethikunterricht. Sie stellt die Unterrichtsmethoden unter der Gliederung von 1) Methoden für die Einführung in den Unterricht, 2) die für den Hauptteil des Unterrichts, 3) die für den Abschluss des Unterrichts, 4) die für Strukturierung des ganzen Unterrichts dar. Der zweite Teil wird wiederum in die Methoden der Form vom Sprechen und Horen, vom Lesen und vom Schreiben unterteilt. Wegen der Einschränkung vom erlaubten Umfang für den Aufsatz wird diese Forschung in zwei Aufsätze geteilt. Der erste Aufsatz behandelte den Teil 1) und den ersten Unterteil des Teils 2). Als Methoden für die Einführung in den Unterricht stellten sich Partnerinterview, Brainstorming und Schneeball dar und als Methoden der Form vom Sprechen und Horen Fishbowl, Pro-Kontra-Argumention, Gruppenarbeit und das sokratische Gespräch. Dieser zweite Aufsatz stellt Lesekompetenz, Lesestrategie, Textanalyse, Mindmapping, Dilemma, kooperatives Lesen und Placemat im Bezug auf Methoden der Form vom Lesen dar und das einfache und dialektische Argumentieren, das kreative Schreiben und Gedankenexperiment als Methoden der Form vom Schreiben. Als Methoden für den Abschluss des Unterrichts werden Blitzlicht, Feedback und Postersession und als Methoden für Strukturierung des ganzen Unterrichts Sandwich und Lernstop betrachtet.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.6
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• pp.1413-1420
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• 2015

On the design phase of small size bridge, owing to the lack of related guidelines or standards to determine a superstructure type of bridge, many designers tend to select the type depending on expert's experience and knowledge. Moreover, recently, as types of bridge superstructure become diverse and more conditions need to be considered in the project, the decision makes process become complex. This research covered the selection of a superstructure type of a middle or small size bridge with span length of about 50m, which frequently built for national roadway, selecting type of bridge superstructure more systematic way rather than the existing ways to compare construction methods or to depend on expert's experiences. This study proposes to build a bridge superstructure type selection model using one of the techniques of artificial intelligence techniques SVM by applicability of the model examined through the verification of the actual case.

• The Journal of the Korea Contents Association
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• v.9 no.12
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• pp.138-145
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• 2009

Humanism connotes dignity and esteem with the essential idea of human and more human. This paper has conducted a inquiry of the understanding about human and humanism represented by visual image of film. Especially, this study investigated the way to adhere to reflective attitude about human and society. It is based on theoretical discussion of formalism and auteurism and analyzed the way of constructing time-space structure of (by Lars von Trier) which is known the typical formalism film. According to the findings, appeared to appropriate the ocularcentrism aesthetic to film form and give the self-regulation to definite the idea of film art through picturesque imagination of dramatic stage. Such a result means that it converts the filmic time-space to the virtual things and practicalize the classification of the ethical doctrine of innate goodness and innate sin of human and the definition of humanism. Also it means formalism film overturns the existing institutional mode of representation.

• Journal of Korean Society of Steel Construction
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• v.19 no.6
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• pp.663-670
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• 2007

Column-tree beam-to-column joints are widely used in moment-resisting frames in Korea. In this study, we proposed four different arrangements for weak-axis moment-resisting beam-to-column connections, which are more economical than the conventional connection, while developing similar structural performance. We investigated the proposed connections whose connection details were different from the conventional one. The experiment was also conducted on a total of five beam-to-column joint specimensto verify the structural performance of the proposed connections. All four connections proposed in this study were found to be more economical that the conventional connection. Three out of four specimens with proposed details were able to developa structural performance similar to that of the specimen with the conventional detail.

• 대한공업교육학회지
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• v.45 no.2
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• pp.131-158
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• 2020

The purpose of this study is to develop and apply an informal engineering education program for engineering education that is realized outside the framework of formal education. To this end, a non-format engineering education program was developed and rationalized, discussing participants' experience in participating in the program. The developed non-format engineering education program was applied to 90 high school learners interested in engineering in a one-night, two-day camp format, and the goal was confirmed through open surveys and in-depth interviews. The goal of the non-format engineering education program is to understand the importance of engineering and engineering design in real life and the principles of engineering design processes, and to use a variety of knowledge and tools to creatively solve engineering problems creatively. In addition, education programs were developed based on the fact that real-life examples allow engineers to understand what they do, design their own careers, and collaborate with colleagues to share various engineering issues and develop communication skills on engineering topics.

• Journal of Korean Library and Information Science Society
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• v.47 no.4
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• pp.123-147
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• 2016

With the rapid progress toward a new cataloging model, the revision of Korean Cataloging Rules (KCR) are under discussion. The purpose of this study is to make a suggestion on constructing authorized access points for multilingual works, especially focused on the language and script of authorized access points. To the end, this study investigates (1) the extended functions and meanings of access points on the new model, (2) related guidelines and regulations reflected in International Cataloging Principles and typical cataloging rules, and (3) the characteristics of access points in the current Korean cataloging practices. Finally, (4) desirable languages and scripts of authorized access points representing multilingual works are suggested.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.40 no.5
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• pp.266-279
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• 2003

In this paper, we propose machine printed character recognition methods which utilize the character type information and divide the character clusters. The characters are subdivided into a total of seven types, of which six types are for Hangul according to the grapheme combination fashions and one type for English characters, numerals, and symbols. According to the character type, we separate input character image into several recognition units and recognize them by using the direction angle feature. The recognition for each character type is completed by combining recognition units which are recognized by neural networks respectively For combining a total of seven character recognizers, we implemented seven methods such as switching method, integrating method, and their several variants. As experimental results, we obtained 98.2% recognition rate of simple switching method, 90.54% of integrating one, and between 97.35% and 98.65% of five variants.

• The Journal of the Korea Contents Association
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• v.13 no.2
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• pp.100-107
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• 2013

Agn$\grave{e}$s Varda is a French representative female film director. In particular, the method combining subjectivity and objectivity is the most outstanding characteristics. However, it can be said that the method to support this is not only theme of the film but also creation of structure including the exploration for the filmic form different from classical film form. Such an approach accords with No$\ddot{e}$l Burch's refined analysis of filmic form. Therefore, This study aims to aesthetical analysis of the form of producing the structure in modern movies through which is one of the representative work by Agn$\grave{e}$sVarda and won the Golden Lion award in 1985 Venice Film Festival. The theme of the film, the recovery of relationships among people and contacts through the tragic death of drifting life, created a new filmic structure by formative experiment of the film. The formative experiment is the fragmented and repetitive construction with the introductory voice-over, and consists of movement and editing of camera and specific use of flashback and sound through the representation of figures and situations, mixture of narrative and non-narrative style.