• Title/Summary/Keyword: Non-Essential Elements

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Seismic Performance Evaluation of a Mid-rise General Hospital Building (중층 종합병원 건물의 내진성능평가)

  • Kim, Taewan;Chu, Yurim;Kim, Seung Rae
    • Journal of the Earthquake Engineering Society of Korea
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    • v.21 no.5
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    • pp.245-254
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    • 2017
  • The building which are essential for disaster recovery is classified as a special seismic use group. Especially, achievement of seismic performance is very important for the hospital, so the hospital should be able to maintain its function during and right after an earthquake without significant damage on both structural and non-structural elements. Therefore, this study aimed at checking the seismic performance of a hospital building, but which was limited to structural elements. For the goal, a plan with a configuration of general hospitals in Korea was selected and designed by two different seismic-force-resisting systems. In analytical modeling, the shear behavior of the wall was represented by three inelastic properties as well as elastic. Nonlinear dynamic analyses were conducted to evaluate the performance of structural members. The result showed that the performance of shear walls in the hospital buildings was not satisfied regardless of the seismic-force-resisting systems, while the demands on the beams and columns did not exceed the capacities. This is the result of only considering the shear of the wall as the force-controlled action. When the shear of the wall was modeled as inelastic, the walls were yielded in shear, and as the result, the demands for frames were increased. However, the increase did not exceed the capacities of the frames members. Consequently, since the performance of walls is significant to determine the seismic performance of a hospital building, it will be essential to establish a definite method of modeling shear behavior of walls and judging their performance.

A Study on the Cases of Seller's Fundamental Breach (근본적(根本的) 계약위반(契約違反) 조항(條項)의 적용(適用) 사례(事例)에 관한 고찰(考察) - 매도인(賣渡人)의 의무위반(義務違反)을 중심(中心)으로-)

  • Ha, Kang-Hun
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.19
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    • pp.67-93
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    • 2003
  • The CISG approach was intended to make the remedial system clear, but produced ambiguity, and complexity. The CISG does not differentiate between main, auxiliary and participatory obligations. There is no distinction between breaches of main or breaches of auxiliary obligations, rather, a distinction is made between fundamental and other breaches of contract. Articles 25 gives the definition of fundamental breach of contract. This concept is the essential of avoidance and remedial system in the CISG. This concept, however, is ambiguous. The fact that the fundamentality of a breach of contract in many cases is the condition for an avoidance of contract, is expression of the trend of the CISG to preserve contracts, which I consider as essential in international trade. The elements which define a substantial detriment are extremely complex. It will become obvious that the relevant detriment is not a static element, but in many instances occurs only when the breach of contract continues. It should be added that it is the circumstances of each individual case which are relevant. It is to be stressed that a fundamental breach of contract must constitute also a non-fulfillment of a contractual obligation.

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Chemical Composition and Bioactivity of Korean Green Tea (Camellia sinensis) Pollen collected by Honey Bee (한국 녹차 화분의 화학적 조성과 기능성 연구)

  • Jang, Jae-Seon
    • The Korean Journal of Food And Nutrition
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    • v.31 no.1
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    • pp.89-93
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    • 2018
  • In this study, we investigated the nutritional composition including proximate, amino acid, vitamin, minerals, and the antioxidant activity of green tea (Camellia sinensis) pollen grains collected by Apis mellifera bees, for use as a health food. The crude protein and fat content was estimated at 26.14% and 3.49%, respectively. Eighteen amino acids were identified in green tea pollen, including 8 essential amino acids and 10 non-essential amino acids. The predominant amino acids were glutamic acid, proline and aspartic acid accounting for about 33.3% of total free amino acids. The concentration of vitamin C was the highest value of 35.7%, followed by $B_3$ and $B_2$ among the detected vitamins. The predominant minerals were potassium (790.32 mg/100g), followed by phosphorus (707.52 mg/100g) and sulfur (302.67 mg/100g), whereas copper, zinc and sodium were detected as minor elements. The antioxidant activity and phenolic content accounted for 33.8% at $500{\mu}g/mL$ extract and $2.55 {\mu}g/mg$, respectively.

Force-deformation behaviour modelling of cracked reinforced concrete by EXCEL spreadsheets

  • Lam, Nelson;Wilson, John;Lumantarna, Elisa
    • Computers and Concrete
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    • v.8 no.1
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    • pp.43-57
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    • 2011
  • Force-deformation modelling of cracked reinforced concrete is essential for a displacement-based seismic assessment of structures and can be achieved by fibre-element analysis of the cross-section of the major lateral resisting elements. The non-linear moment curvature relationship obtained from fibre-element analysis takes into account the significant effects of axial pre-compression and contributions by the longitudinal reinforcement. Whilst some specialised analysis packages possess the capability of incorporating fibre-elements into the modelling (e.g., RESPONSE 2000), implementation of the analysis on EXCEL is illustrated in this paper. The outcome of the analysis is the moment-curvature relationship of the wall cross-section, curvature at yield and at damage control limit states specified by the user. Few software platforms can compete with EXCEL in terms of its transparencies, versatility and familiarity to the computer users. The program has the capability of handling arbitrary cross-sections that are without an axis of symmetry. Application of the program is illustrated with examples of typical cross-sections of structural walls. The calculated limiting curvature for the considered cross-sections were used to construct displacement profiles up the height of the wall for comparison with the seismically induced displacement demand.

A Study on Beauty Action of the Growing Generation (중.고등학교 여자 청소년의 뷰티행동에 관한 연구)

  • Seo, Hyun-Jin;Choi, In-Ryu
    • The Research Journal of the Costume Culture
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    • v.18 no.3
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    • pp.514-525
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    • 2010
  • In the rapidly changed 21st century when the flow speed of information is so fast and the quantity of information is too much increasing, personal appearance and characteristic image-formation is highly evaluated. Nowadays personal appearance is very essential to competition and may be considered the non-linguistic expression of self-image. The beauty action of the youth is shown to follow the object which youth want to rely on or long for and it is affected by the influence of the sociocultural elements. The purpose of this study is to identify the corelation between appearance and beauty action according to the sociocultural elements of the juveniles concerning appearance and to make an inquiry into how they pursue beauty in the restrictive bound compared with the adults. As their restrictive beauty action, the practical reflection percentage of hair-style, management of face, hand and nail control will be investigated and analyzed. Furthermore this basic material of this survey was used for the development of beauty article, cosmetics and education program. With the findings of the beauty articles in which the growing generation have a deep interest, this study provided the basic materials to the customer analysis and also the reference materials to the beauty marketing.

A Structured Markup Language for the Object-Oriented Representation and Management of Decision Models on the Web (웹상에서의 의사결정모형의 객체지향적 표현과 관리를 위한 구조적 마크업 언어)

  • Kim, Hyoung-Do
    • Asia pacific journal of information systems
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    • v.8 no.2
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    • pp.53-67
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    • 1998
  • The explosive growth of the Web is providing end-users access to ever-increasing volumes of information. The resources of legacy systems and relational databases have also been made available to the Web browser, which has become an essential business tool. Recently, model management on the Internet/Web is also proposed with its conceptual design or prototypical system like DecisionNet and DSS Web. However, they are also suffering from the same symptoms as the Web, Although we can identify the elements of a page with HTML tags and (declare) the relationships among the various document elements, they are semantically opaque to computer systems and have no domain-specific meaning. However, HTML is not extensible, so developers are forced to invent convoluted, non-standard solutions for embedding and parsing data. Extensible Markup Language (XML) is a simplified subset of SGML that has many benefits for folks who want to improve structure, maintainability, searchability, presentation, and other aspects of their document management. This paper proposes a structured markup language for model representation and management on the Web as an XML application. The language is based on a conceptual modeling framework, Object-Oriented Structured Modeling (OOSM), which is an extension of the structured modeling.

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Effect of Preparation Condition of Precursor Thin Films on the Properties of CZTS Solar Cells

  • Seong, Si-Jun;Park, Si-Nae;Kim, Dae-Hwan;Gang, Jin-Gyu
    • Proceedings of the Korean Vacuum Society Conference
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    • 2013.08a
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    • pp.318.1-318.1
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    • 2013
  • Nowadays Cu2ZnSnS4 (CZTS) solar cell is attracting a lot of attention as a strong alternative to CIGS solar cell due to nontoxic and inexpensive constituent elements of CZTS. From various processes for the fabrication of CZTS solar cell, solution-based deposition of CZTS thin films is well-known non-vacuum process and many researchers are focusing on this method because of large-area deposition, high-throughput, and efficient material usage. Typically the solution-based process consists of two steps, coating of precursor solution and annealing of the precursor thin films. Unlike vacuum-based deposition, precursor solution contains unnecessary elements except Cu, Zn, Sn, and S in order to form high quality precursor thin films, and thus the precise control of precursor thin film preparation is essential for achieving high efficient CZTS solar cells. In this work, we have investigated the effect of preparation condition of CZTS precursor thin films on the performance of CZTS solar cells. The composition of CZTS precursor solution was controlled for obtaining optimized chemical composition of CZTS absorber layers for high-efficiency solar cells. Pre-annealing process of the CZTS precursor thin films was also investigated to confirm the effect of thermal treatment on chemical composition and carbon residues of CZTS absorber layers. The change of the morphology of CZTS precursor thin film by the preparation condition was also observed.

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Physiological and pharmacological features of the non-saponin components in Korean Red Ginseng

  • Hyun, Sun Hee;Kim, Sung Won;Seo, Hwi Won;Youn, Soo Hyun;Kyung, Jong Soo;Lee, Yong Yook;In, Gyo;Park, Chae-Kyu;Han, Chang-Kyun
    • Journal of Ginseng Research
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    • v.44 no.4
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    • pp.527-537
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    • 2020
  • Panax ginseng, a medicinal plant, has been used as a blood-nourishing tonic for thousands of years in Asia, including Korea and China. P. ginseng exhibits adaptogen activity that maintains homeostasis by restoring general biological functions and non-specifically enhancing the body's resistance to external stress. Several P. ginseng effects have been reported. Korean Red Ginseng, in particular, has been reported in both basic and clinical studies to possess diverse effects such as enhanced immunity, fatigue relief, memory, blood circulation, and anti-oxidation. Moreover, it also protects against menopausal symptoms, cancer, cardiac diseases, and neurological disorders. The active components found in most Korean Red Ginseng varieties are known to include ginsenosides, polysaccharides, peptides, alkaloids, polyacetylene, and phenolic compounds. In this review, the identity and bioactivity of the non-saponin components of Korean Red Ginseng discovered to date are evaluated and the components are classified into polysaccharide and nitrogen compounds (protein, peptide, amino acid, nucleic acid, and alkaloid), as well as fat-soluble components such as polyacetylene, phenols, essential oils, and phytosterols. The distinct bioactivity of Korean Red Ginseng was found to originate from both saponin and non-saponin components rather than from only one or two specific components. Therefore, it is important to consider saponin and non-saponin elements together.

A Study on Non-western modernity of Surface Phenomena in Korean Commercial Architecture (한국 상업건축 입면현상의 비서구적 근대성에 대한 연구)

  • Lee, Sang-Hun
    • Korean Institute of Interior Design Journal
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    • v.20 no.6
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    • pp.218-227
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    • 2011
  • Korean commercial architecture is based on two distinctive characteristics of western modern architecture: grid frame structure and free facade. However, the original facade of the building disappears as numbers of commercial advertisements and signboards representing inner programs cover up the original facade. This is a unique feature of commercial architecture in Korea which I would call the surface phenomena of Korean commercial architecture. Common criticism on this type of building is that too many and too big signboards infringe upon the original pure facade of the architecture. Underlying assumption here is that signboards and commercial ads are inessential and decorative elements simply attached to the original pure facade of modern architecture. However, in this paper, I argue that commercial decorations is an essential aspect of korean commercial architecture rather than an inessential decorative element attached later to the essential facade of architecture and that it reflects the historical specificity of cultural and architectural modernity of Korea And thus, the surface phenomena of Korean commercial architecture should not be judged based upon the aesthetic paradigms of either western modern or postmodern architecture. Rather, it can be argued that surface phenomena of Korean commercial architecture is a reflection of a modernity beyond the paradigm of western modernism and postmodernism. The agenda of Korean commercial architecture is then not simply to restrict or to control signboards on the building facades with the intention to clean up facade of the building but rather to integrate the signs and commercial ads with the structure of architectural surface.

Numerical Study on the Active Control of Aerodynamic Properties of 2 - D Square Prism (2차원 각주의 공력특성 능동제어에 관한 수치해석 연구)

  • 이영호;김춘식;조대환
    • Journal of Advanced Marine Engineering and Technology
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    • v.17 no.1
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    • pp.33-44
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    • 1993
  • Active control of a flow field is essential to design efficient parts or elements relating to fluid machineries. The present study is aimed to suggest a new discretization technique of the convection term by renewing the non-conservative equation found in SOLA-VOF into a conservative one. And, as an application, flow characteristics are investigated by adjusting the backward ejecting velocity of 2-D square prism to control the aerodynamic properties. Strouhal number, drag and lift coefficient are compared in terms of various ejecting velocity. Among the results, the transient weak fluctuation of the lift and drag coefficient when the ejecting velocity equals channel inlet velocity is remarkably noticed.

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