• Title/Summary/Keyword: A first principles study

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A Study on Landscape of Naeap Village in Andong interpreted with CPTED Principles (범죄예방환경설계(CPTED) 원리로 해석한 안동 내앞마을 경관 연구)

  • Kim, Sun-Ju;An, Seung-Hong;Kim, Hak-Beom
    • Journal of Korean Society of Rural Planning
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    • v.21 no.4
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    • pp.77-84
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    • 2015
  • The purpose of this study is to interpret Landscape of Naeap Village which still preserves the Confucian culture and the traditional clans among the ideally settled villages mentioned in Joong Hwan Lee's "Taengniji" and "Joseon's Fengsui" from the time of Japanese Imperial Rule, from CPTED principles. The following are the findings of this study: First, in terms of access control and zoning, Naeap Village was controlling access from the outside with the natural environment of Banbyeoncheon River and the hills surrounding the village, the artificial environment of human-scale walls around the head house and the dead ends, and the reformation by the Confucian ideologies. Naeap Village, in particular, is prominently configured by the hierarchy of zones; the Gaehosong pine trees, Gyeongpodae, and Naeapssu by the entrance to the village are considered the village itself and the landscapes and valleys are managed by the head house. Second, the Confucian culture across the village, the traditional vegetation method that does not hide the visibility, and the workers in the farms allow natural monitoring. The surrounding visibility is also applied to the spirit of mutual cooperation in the farming society, the culture of commoners at the common well and laundry site, and the culture of ruling class at the towers and pavilions. Third, Traditional villages show the efforts to preserve and maintain the villages with the village rules, the organizational decrees of the clan, and active response to national disasters.

Analysis of the Properties and Tastes In Hyeongok's Formulas for Invigorating Five Viscera and their Ingredients (현곡(玄谷) 오장(五臟) 보방(補方)의 조성 약물과 그 기미배오(氣味配伍) 분석)

  • Shin, Soon-Shik
    • Herbal Formula Science
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    • v.19 no.1
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    • pp.131-144
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    • 2011
  • Objectives : The objective of this study lies in theoretical establishment of formulas for invigorating five viscera for curing the asthenic syndrome of five viscera through analyzing the component medicines and combination principles of Hyeongok's formulas for invigorating five viscera, and furthermore, maximizing the clinical use of them. Methods : This study analyzed the component medicines and combination principles of Hyeongok's formulas for invigorating five viscera based on the theory for properties and tastes of herbal medicines from the "Yellow Emperor's Canon of Internal Medicine", the theory for principal herbal medicine, assistant herbal medicine, adjuvant herbal medicine, dispatcher herbal medicine, and the five elements doctrine. Hyeongok's formulas for invigorating five viscera are Bogantang, Boseemtang, Bobeetang, Bopyeotang, and Boshintang. Results : There are three methods for curing the asthenic syndrome of five viscera according to the five elements doctrine: in case of Bogantang invigorating the liver, invigorating the kidney and purging the lung; Boseemtang, invigorating the heart, invigorating the liver and purging the kidney; Bobeetang, invigorating the spleen, invigorating the heart and purging the liver; Bopyeotang, invigorating the lung, invigorating the spleen and purging the heart; Boshintang, invigorating the kidney, invigorating the lung and purging the spleen. Conclusions : First, to cure the asthenic syndrome of five viscera, the methods of invigorating five viscera, and purging five viscera should be used according to the five elements doctrine. Secondly, herbal medicines appropriate for those treatment methods should be chosen according to the theory for properties and tastes of herbal medicine and thirdly, the combination of those herbal medicines should be carried out according to the theory for principal herbal medicine, assistant herbal medicine, adjuvant herbal medicine, dispatcher herbal medicine. As a good example, Hyeongok's formulas for invigorating five viscera are combined according to the above theories. In conclusion, this formula was created by applying to the theory for properties and tastes of herbal medicines.

A Study on the Application of Calculation Method According to the Standard of Elementary School in Elementary School (초등학교 수학과 성취기준에 따른 계산기의 활용 방안)

  • Ahn, Byounggon
    • School Mathematics
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    • v.19 no.4
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    • pp.713-729
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    • 2017
  • It is the 6th curriculum that first officially mentioned the use of calculators in elementary mathematics education in Korea. Since then, the curriculum has been more widely used than in the beginning. However, in actual textbooks, it is still not enough to see the utilization situation, and guidance in this textbook is very scarce. In particular, there is no relevant study that meets the standards of achievement of the curriculum. The purpose of this study is to investigate the contents of the research on the use of the calculator in the course of the curriculum change after the 6th curriculum, and to present the complex calculation, mathematical concept, mathematical principles and rules, mathematical problem solving. In addition, the course is presented in the textbooks that are appropriate for the achievement criteria and the application process for each topic.

A study on theory of cataloging (목록법이론에 대한 연구)

  • 남태우
    • Journal of the Korean Society for information Management
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    • v.14 no.1
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    • pp.223-254
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    • 1997
  • The goal of this paper is mainly to review and summarize the theory of cataloging. This artical reviews the theortical background of cataloging. First, the objectives and function of the library catalog was analyzed. Second, According to this methodology was researched the Cutter's theory of 'convenience of the public' on the cataloging, Osborn's 'the Crisis of Cataloging' (legalist theory of cataloging, perfectionism theory bibliographic theory and pragmatic theory) and Lubetzky's the theory of 'Cataloging Rules and Principles' and the last Houten' s 'In the Iron Age of Cataloging' theory.

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Distinct Mechanisms of DNA Sensing Based on N-Doped Carbon Nanotubes with Enhanced Conductance and Chemical Selectivity

  • Kim, Han Seul;Lee, Seung Jin;Kim, Yong-Hoon
    • Proceedings of the Korean Vacuum Society Conference
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    • 2014.02a
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    • pp.415.1-415.1
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    • 2014
  • Carrying out first-principles calculations, we study N-doped capped carbon nanotube (CNT) electrodes applied to DNA sequencing. While we obtain for the face-on nucleobase junction configurations a conventional conductance ordering where the largest signal results from guanine according to its high highest occupied molecular orbital (HOMO) level, we extract for the edge-on counterparts a distinct conductance ordering where the low-HOMO thymine provides the largest signal. The edge-on mode is shown to operate based on a novel molecular sensing mechanism that reflects the chemical connectivity between N-doped CNT caps that can act both as electron donors and electron acceptors and DNA functional groups that include the hyperconjugated thymine methyl group[1].

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First-principles Study on Magnetism of Cu in GaN

  • Kang, Byung-Sub;Heo, Chul-Min;Lyu, Kwang-Kwyun;Yu, Seong-Cho
    • Journal of Magnetics
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    • v.14 no.3
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    • pp.114-116
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    • 2009
  • The electronic properties of Cu or Pd-doped GaN at several concentrations are examined using the full-potential linear muffin-tin orbital method. For ($Cu_{0.055}Ga_{0.945}$)N, the model reveals a magnetic moment of $1.47{\mu}B$ per supercell. The range of concentrations that are spin-polarized should be restricted within narrow limits. A paramagnetic to ferromagnetic phase transition is found to occur at a Cu concentration of 5.55%.

Galaxy formation in the 21st century

  • Yi, Sukyoung
    • The Bulletin of The Korean Astronomical Society
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    • v.43 no.2
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    • pp.29.1-29.1
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    • 2018
  • With their complex structure that includes a thin disc, spiral arms, and often a bar, galaxies have been regarded as something beyond the human perceptions. Hence, the studies on galaxy formation in the 20th century have almost exclusively based on schematic scenarios. With markedly improved knowledge on cosmology over the last couple of decades, we have finally acquired a base from which galaxy formation can be studied from the first principles of physics. I review the modern history of the study of galaxy formation and present some preliminary results from the most recent numerical simulations that provide more realistic pictures of galaxy formation than was available ever before. In terms of galaxy formation, the age of scenarios is fading away, while the age of physical understanding is rising over the horizon.

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A Study on Transition Factor of Audit Opinion (감사의견(監査意見)의 추이요인(推移要因)에 관한 연구(硏究))

  • Chung Youn-Hae
    • Management & Information Systems Review
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    • v.7
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    • pp.141-168
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    • 2001
  • The causes that the transparency of Korean accounting information was rated low, a short supply of faithful and transparent accounting information from the limitation of external audit environment must be pointed out. Purpose of the external audit is a expression of the auditors about that financial statements an enterprise made public were appropriately drew up in accordance with the corporate accounting principles from important point of view. Analysis of the audit opinion and so fourth according to 6,541 individual audit reports and introduced to the bill securities forward committee as a subject of external audit according to the raw of corporation external audit show that considerable change to the contents of audit report. This show as it is that uncertainty of future that is now being faced by our enterprise, because corporation which present audit reports since 1997 because of enterprise dishonor and contents of existence probability as a continued enterprise following to general economic crisis after 1998 occupy important position in special matters of audit report. Also, increase in special matters is due to application of the corporate accounting principles revised on December 11, 1998. In 1999, audit opinion under limitation(limitation, incongruity and rejecting opinion) increased greatly according to existence doubt as a continued enterprise, and this is the consequence of strengthening audit to the continues enterprise because of limited enterprise dishonor according to the stagnancy of business activities after 1997. Now financial supervisory service put in effect electromagnetic public announcement system about a project report of listed corporation (including an audit report) keeping pace with a documentary public announcement system as first phase since 1999 and expand to the unlisted corporation from 2000. As electromagnetic public announcement of public announcement documents including audit documents of external audit subject get a duty, approach of external user to the accounting information will be easier. Fixation of this system will make deep and wide analysis to the audit opinion, and this will draw up a plan to reconsider confidence of accounting information.

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The Development of Heuristics for Voice Shopping Service through Voice Interface with Display (디스플레이 탑재형 음성 인터페이스를 통한 음성쇼핑 서비스 휴리스틱 개발)

  • Gwon, Hyeon Jeong;Lee, Jee Yeon
    • Journal of the Korean Society for information Management
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    • v.39 no.2
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    • pp.1-33
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    • 2022
  • Voice shopping is gaining attention following the trend of non-contact E-commerce by enabling people to shop via voice command. Therefore, in this study, voice shopping service heuristics using a display-mounted voice interface were developed in preparation for the future where voice shopping becomes a part of daily life in the world. First, as a theoretical approach, a literature survey of 50 papers on the design principles of 'visual interface,' 'voice interface,' and 'shopping service' was conducted to produce a total of 29 draft design principles. Second, as an empirical approach, a focus group interview was conducted on consumer decision-making processes in shopping experiences and information-seeking behavior within the context of shopping to draft the heuristics. This was to supplement the user experience, a weak part of the literature research. Finally, a Delphi survey asked 20 experts in UX, service planning, artificial intelligence development, and shopping to evaluate the heuristics draft developed through the above two stages. After three rounds of Delphi surveys, the final heuristics were proposed.

A Study on the concept of hidden Yin in summer by Zhu Danxi (주단계(朱丹溪)의 하월복음재내론(夏月伏陰在內論)에 대한 고찰)

  • Eun, Seokmi
    • Journal of Korean Medical classics
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    • v.30 no.3
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    • pp.95-108
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    • 2017
  • Objectives : The concept of hidden Yin in summer by Zhu Danxi deals with the relationship between summer heat disease and hidden yin inside of human body. This paper attempts to ponder upon the clinical issues around which the discussions regarding the topic unfolded, and upon the texts on which the doctors of the discussions based their opinions. Methods : First, Danxi's argument as discussed in $G{\acute{e}}zh{\grave{i}}y{\acute{u}}l{\grave{u}}n$ is analyzed to find out his understandings of clinical issues and his textual sources on which he based his new perspective. Moreover, the prescriptions that Danxi thought was problematic and the concept of hidden yin as it existed before the time of Danxi are reviewed, and these findings are used understand Zhangjingyue's ground of criticism against Danxi. Lastly, this paper contemplates how these opposing opinions may be helpful to the general principles of medical theories. Results & Conclusions : There was a trend before the time of Danxi of abusing drugs as prescription based on warm-heat, understanding that a human body has yin-cold during summer. However, Danxi brought forth a new concept of yin deficiency in order to correct people's misunderstanding. Despite his effort, Zhangjingyue and other doctors contemporary to Danxi emphasized on one hand that human body is placed on a state of external heat inside the cold, and on the another, criticized Danxi of failing to fully understand the principle of "Abandon the time and follow the symptoms", a principle which asserts that the cold and warm of medicine should be decided by the symptom itself and not by the season. The value of these contradicting assertions seems to hold true even to this day because it helps us understand that the principles of "Counting Season as a Treatment Factor" and "Abandon the time and follow the symptoms" could be applied with balance in conjunction with each other.