• Title/Summary/Keyword: Nature frequency

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The study on the relationship between MBTI and QSCC II composed to Nature & Emotion (QSCC II의 성정(性情) 항목과 MBTI의 상관성(相關性)에 대한 비교 연구)

  • Song, Ji-Hyoung;Park, Kyung-Su;Shim, Sang-Min;Chang, Mi-Kyung;Kim, Geun-Woo;Koo, Byuns-Soo
    • Journal of Oriental Neuropsychiatry
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    • v.13 no.2
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    • pp.21-39
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    • 2002
  • Objectives : This study is designed to evaluate the psychological characteristics of Sasang Constitution(Origin and Nature & Emotion Group) by MBTI. Methods : 200 people were tested by QSCCII(Origin and Nature & Emotion Group) and MBTI. It is analyzed by ANOVA, Frequency, Crosstabulation, Duncan & Scheffe Post Hoc Tests. Results : 1. The number of Soyangin was 73, Soeumin was 49, Taeumin was 50, Not classified was 28 in Origin group and Soyangin was 114, Soeumin was 28, Taeumin was. 26 in Nature & Emotion group. When we evaluate QSCCII with 38 Nature & Emotion questionaires, the number of Soyangin are incresed compare to Origin Group. 2. The most three MBTI Types are Soyangin ISTJ, ISTP, ESTJ, Soeumin IJST, ISTP, INTJ, Taeumin ISTJ, ESTP, ESTJ, in Origin Group and Soyangin ISTJ, ESTJ, ISTP, Soeumin ISTJ, ISTP, INTJ, Taeumin ISTJ, ESTP, ISFP in Nature & Emotion Group. There is no significant difference between Origin and Nature & Emotion Group in ststistics. 3. Soeumin & Taeumin tended to be introverted, judging types in Origin and Nature & Emotion Group. Soeumin tended to be intuition type in Nature & Emotion Group. Conclusion : We have not significant differences on peculiarity of sasang constitution compared to MBTI between Origin and Nature & Emotion Group in ststistics.

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Characteristics of near-surface ozone distribution

  • Kim, Yoo-Keun;Lee, Hwa-Woon;Kim, Jae-Hwan;Moon, Yun-Seob;Song, Sang-Keun
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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    • v.4 no.3
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    • pp.127-137
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    • 2000
  • This study presents an analysis of the characteristics of vertical ozone distribution near the surface using ozonesonde data(l995 to 1998), plus surface ozone and meteorological data from the Pohang region. These features were examined in detail using three case studies. The first related to episodes of high surface ozone concentrations during the Spring season when the frontogenesis between the high and low pressure associated with the upper-level jet stream was found to be located near the surface. The second was a 5-day winter period(l3 -17 December, 1997) in the Pohang province when the hourly concentrations exceeded 90 ppb on several occasions owing to low-level jets(LLJs) induced by a nocturnal stable layer. Accordingly, this explains why the high surface ozone concentrations occurred at night as the ozone was transported across the zone by a strong wind speed( over 12.5 ms .1). The third case study was ozone enhancement due to photochemical reactions. In this case, the maximum concentration of ozone exceeded 60 ppb in the summer(23 -28 August, 1997). When an ozone peak appeared within the boundary layer, the occurrence frequency of a low-level jet due to the nocturnal stable layer was about 77%, similarly the occurrence frequency of a near-surface ozone peak relative to the appearance of an LLJ was about 76%. Accordingly, there is clearly a close correlation between the occurrence of LLJs and near-surface ozone peaks.

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Diagnostics and Prognostics Based on Adaptive Time-Frequency Feature Discrimination

  • Oh, Jae-Hyuk;Kim, Chang-Gu;Cho, Young-Man
    • Journal of Mechanical Science and Technology
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    • v.18 no.9
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    • pp.1537-1548
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    • 2004
  • This paper presents a novel diagnostic technique for monitoring the system conditions and detecting failure modes and precursors based on wavelet-packet analysis of external noise/vibration measurements. The capability is based on extracting relevant features of noise/vibration data that best discriminate systems with different noise/vibration signatures by analyzing external measurements of noise/vibration in the time-frequency domain. By virtue of their localized nature both in time and frequency, the identified features help to reveal faults at the level of components in a mechanical system in addition to the existence of certain faults. A prima-facie case is made via application of the proposed approach to fault detection in scroll and rotary compressors, although the methods and algorithms are very general in nature. The proposed technique has successfully identified the existence of specific faults in the scroll and rotary compressors. In addition, its capability of tracking the severity of specific faults in the rotary compressors indicates that the technique has a potential to be used as a prognostic tool.

Fellowship beyond Kinship: Sympathy, Nature and Culture in Mary Shelley's Frankenstein

  • Seo, Jung Eun
    • Journal of English Language & Literature
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    • v.64 no.2
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    • pp.203-217
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    • 2018
  • Both in terms of frequency and importance, sympathy is one of the most central themes that Mary Shelley's Frankenstein (1818) delves into. While not a few critics have written on the subject, one crucially important aspect has been overlooked in the previous discussions of sympathy in Frankenstein: Shelley's critical intervention in the term's long lasting association with the notion of one body from a single origin. Focusing on the novel's central theme of sympathy, my paper addresses this oversight in the existing Frankenstein scholarship. I argue that Shelley's main agenda regarding sympathy in the novel is to problematize the logic of self-reproduction implicit in the notion of sympathy as an essentially familial tie. The reading of the novel as a warning against human violation of nature has been prevalent both in academia and popular culture. Nonetheless, in terms of sympathy, this paper offers an alternative reading in which the novel questions, not valorizes, the naturalization of nature. Far from valorizing the inviolable sacredness of nature, I argue, Frankenstein is a literary project attempting to disassociate sympathy from the natural bond that one is born into, and instead, re-associate it with fellowship as a second-nature to be continuously reinvented and reeducated.

Unsteady Nature of a Tip Leakage Vortex in an Axial Flow Fan (축류팬 익단누설와류의 비정상 특성)

  • Jang, Choon-Man;Kim, Kwang-Yong
    • Proceedings of the KSME Conference
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    • 2003.11a
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    • pp.845-850
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    • 2003
  • Unsteady nature of a tip leakage vortex in an axial flow fan operating at a design and off-design operating conditions has been investigated by measuring the velocity fluctuation in a blade passage with a rotating hotwire probe sensor. Two hot-wire probe sensors rotating with the fan rotor were also introduced to obtain the cross-correlation coefficient between the two sensors located in the vortical flow as well as the fluctuating velocity. The results show that the vortical flow structure near the rotor tip can be clearly observed at the quasi-orthogonal planes to a tip leakage vortex. The leakage vortex is enlarged as the flow rate is decreased, thus resulting in the high blockage to main flow. The spectral peaks due to the fluctuating velocity near the rotor tip are mainly observed in the reverse flow region at higher flow rates than the peak pressure operating condition. However, no peak frequency presents near the rotor tip for near stall condition.

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A Study on the Effect of Self-Actualization Variables on the Modesty and Aethetics in the Selection of Clothing (의복의 정숙성.심미성에 영향을 미치는 관련변인 연구 (1) -자아실현을 중심으로-)

  • 강경자
    • Journal of the Korean Home Economics Association
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    • v.30 no.4
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    • pp.27-38
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    • 1992
  • The purpose of this study was to evaluate the effect of self-actualization and demographic variables of adult women on the modesty and aethetics in the selection of clothes. The qestionnaire were completed by 647 women in taegu and jinju. The major findings of this research can be summairzed as follows : 1. Marital status has effect on the self-actualizing values. religion, occupation and income have effect on self-acceptance. Marital staus and religion have effect on nature of man. 2. Frequency of contact with mass media has effect on the modesty of clothing. Self-actualization and demographic variables have no direct effect on the modesty of clothing. 3. Self-actualizing values, self-acceptance, nature of man, income, frequency of contact with mass media have direct effect on the aethetics of clothing.

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Effect of prestressing on the first flexural natural frequency of beams

  • Jaiswal, O.R.
    • Structural Engineering and Mechanics
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    • v.28 no.5
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    • pp.515-524
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    • 2008
  • In this paper the effect of prestressing force on the first flexural natural frequency of beams is studied. Finite element technique is used to model the beam-tendon system, and the prestressing force is applied in the form of initial tension in the tendon. It is shown that the effect of prestressing force on the first natural frequency depends on bonded and unbonded nature of the tendon, and also on the eccentricity of tendon. For the beams with bonded tendon, the prestressing force does not have any appreciable effect on the first flexural natural frequency. However, for the beams with unbonded tendon, the first natural frequency significantly changes with the prestressing force and eccentricity of the tendon. If the eccentricity of tendon is small, then the first natural frequency decreases with the prestressing force and if the eccentricity is large, then the first flexural natural frequency increases with the prestressing force. Results of the present study clearly indicate that the first natural frequency can not be used as an easy indicator for detecting the loss of prestressing force, as has been attempted in some of the past studies.

Research Trends of Studies Related to the Nature of Science in Korea Using Semantic Network Analysis (언어 네트워크 분석을 이용한 과학의 본성에 관한 국내연구 동향)

  • Lee, Sang-Gyun
    • Journal of the Korean Society of Earth Science Education
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    • v.9 no.1
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    • pp.65-87
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    • 2016
  • The purpose of this study is to examine Korean journals related to science education in order to analyze research trends into Nature of science in Korea. The subject of the study is the level of Korean Citation Index (KCI-listed, KCI listing candidates), that can be searched by the key phrase, "Nature of science" in Korean language through the RISS service. In this study, the Descriptive Statistical Analysis Method is utilized to discover the number of research articles, classifying them by year and by journal. Also, the Sementic Network Analysis was conducted to Word Cloud Analysis the frequency of key words, Centrality Analysis, co-occurrence and Cluster Dendrogram Analysis throughout a variety of research articles. The results show that 91 research papers were published in 25 journals from 1991 to 2015. Specifically, the 2 major journals published more than 50% of the total papers. In relation to research fields., In addition, key phrases, such as 'Analysis', 'recognition', 'lessons', 'science textbook', 'History of Science' and 'influence' are the most frequently used among the research studies. Finally, there are small language networks that appear concurrently as below: [Nature of science - high school student - recognize], [Explicit - lesson - effect], [elementary school - science textbook - analysis]. Research topic have been gradually diversified. However, many studies still put their focus on analysis and research aspects, and there have been little research on the Teaching and learning methods.

Robust Pilot-aided Frequency Offset Estimation Scheme for OFDM-based Broadcasting System with Cyclic Delay Diversity

  • Shin, Won-Jae;You, Young-Hwan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.7 no.12
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    • pp.3055-3070
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    • 2013
  • This paper proposes an improved carrier frequency offset (CFO) and sampling frequency offset (SFO) estimation scheme for orthogonal frequency division multiplexing (OFDM) based broadcasting system with cyclic delay diversity (CDD) antenna. By exploiting a periodic nature of channel transfer function, cyclic delay and pilot pattern with a maximum channel power are carefully chosen, which helps to enable a robust estimation of CFO and SFO against the frequency selectivity of the channel. As a performance measure, a closed-form expression for the achievable mean square error of the proposed scheme is derived and is verified through simulations using the parameters of the digital radio mondiale standard. The comparison results show that the proposed frequency estimator is shown to benefit from properly selected delay parameter and pilot pattern, with a performance better than the existing estimator.

Impacts of Trapezoidal Fin of 20-nm Double-Gate FinFET on the Electrical Characteristics of Circuits

  • Ryu, Myunghwan;Kim, Youngmin
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.15 no.4
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    • pp.462-470
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    • 2015
  • In this study, we analyze the impacts of the trapezoidal fin shape of a double-gate FinFET on the electrical characteristics of circuits. The trapezoidal nature of a fin body is generated by varying the angle of the sidewall of the FinFET. A technology computer-aided-design (TCAD) simulation shows that the on-state current increases, and the capacitance becomes larger, as the bottom fin width increases. Several circuit performance metrics for both digital and analog circuits, such as the fan-out 4 (FO4) delay, ring oscillator (RO) frequency, and cut-off frequency, are evaluated with mixed-mode simulations using the 3D TCAD tool. The trapezoidal nature of the FinFET results in different effects on the driving current and gate capacitance. As a result, the propagation delay of an inverter decreases as the angle increases because of the higher on-current, and the FO4 speed and RO frequency increase as the angle increases but decrease for wider angles because of the higher impact on the capacitance rather than the driving strength. Finally, the simulation reveals that the trapezoidal angle range from $10^{\circ}$ to $20^{\circ}$ is a good tradeoff between larger on-current and higher capacitance for an optimum trapezoidal FinFET shape.