• 제목/요약/키워드: Frequency-Consequence

검색결과 216건 처리시간 0.035초

고객의 관여도 수준 및 의류판매원과의 성격 유사성이 판매효과에 미치는 영향 (Influence of the Sale Effect at the Similar of the Personality between the Level of Customer's Involvement and Apparel Salesperson)

  • 홍병숙;박성희
    • 한국의류학회지
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    • 제29권3_4호
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    • pp.576-584
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    • 2005
  • The purpose of this research was to consequences of the sale effect derived from similar type of personality between the customer and the apparel salesperson. For the purpose of the verifications, random survey is made to 225 people over 20 years in age among the residence in the district of Seoul and using SPSS program, the reliability, frequency and crosstabs. The results of this study as follows: 1) In the fashion apparels of higher level of involvement, lower assertiveness but carefulness and analytic attitude of the salesperson is preferred rather than the customer's personality. 2) Difference are shown of the consequence of the sale effect by the corresponding type of the personality, depending on the degree of the involvement. 3) As for the level of the influence of the sale effect by the concordance of personality type depending on profession, student group are more conscious rather than the professional group in the aspect of concordance of personality type with salesperson.

시간 영역의 빔출력과 후보 신호 사이의 비교를 통한 소음원의 위치 추정 (Noise source localization using comparison between candidate signal and beamformer output in time domain)

  • 김구환;김양한
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2010년도 추계학술대회 논문집
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    • pp.543-543
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    • 2010
  • The objective of this research is estimating the location of interested sound source by using the similarity between a beamformer output in time domain and the candidate signal. The waveform of beamformer output at the location of sound source is similar with the waveform emitted by that source. To estimate the location of sound source by using this feature, we define quantified similarity between candidate signal and beamformer output. The candidate signal describes the signal which is generated by interested source. In this paper, similarity is defined by four methods. The two methods use time vector comparison, and the other two methods use time-frequency map or linear prediction coefficients. To figure out the results and performance of localization by using similarities, we demonstrate two conditions. The one is when two pure tone sources exist and the other condition is when several bird sounds exist. As a consequence, inner product with two time-vectors and structural similarity with spectrograms can estimate the locations of interest sound source.

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스팀펑크(steampunk) 패션의 표현 특성 연구 (A Study of Formative Characteristics of Steampunk Fashion)

  • 최유진
    • 복식
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    • 제63권8호
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    • pp.58-75
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    • 2013
  • Steampunk is a term generally used for one of the S. F. subgenre in literature, arts, fashion styles, and lifestyles. This study clarifies formative characteristics as well as the meanings of steampunk fashion style based on its attributes in movies and animations. Attributes of the steampunk are blending time, blending technology, and introspection against science development. In order to have an objective research, this study researched frequency of the fashion item, color, accessory of the collected fashion image, and after interpreted that consequence. Men's steampunk fashion was composed of men's basic outfit such as shirts, vest, jacket, pants, and coats of the 19th century. Black color took up the largest proportion for color. In accessory, top hat, goggle, and steam-powered weapons, in order, were most commonly used. Women's steampunk fashion was composed of shirts and long one-piece dresses, long skirt simply applied 19th victorian style fashion. Yellow, brown, and black color took up the largest proportion of fashion color. In accessory, top hat, belt trimming, corset, and boots, in order, were most commonly used. It is the characteristics of the steampunk fashion that represents retro-future fashion, as it features steam-powered mechanic esthetics, a kind of DIY subculture and transcending division of nationality, class, and gender.

고혈압(高血壓) 환자를 대상으로 시행한 외기발공(外氣發功)의 유효성(有效性) 고찰 (A study on the EGT(Extra Gigong Therapy) with Hypertension)

  • 김주미;박종웅;박령준;필감매;선재광
    • 대한의료기공학회지
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    • 제9권1호
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    • pp.1-48
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    • 2006
  • This is a paper on the validity of Extra Gigong Therapy(EGT) on Hypertension patients. We've treated hypertension patients EGT, used IEMD for analysis, so that come to these conclusions. 1. Average value of treatment group was 4.215, this is higher than one of control group. They had differences up to the standard. 2. Hypertension patients are divided into EGT treated group(treatment group) and non-treated one(control group). 3. Light stomach meridian has differences in treatment group and no differences in control group before and after EGT. That means EGT is effective. So does Spleen meridian. 4. With 12 meridians' electric potential values, we come to conclusion that EGT is likely to do hypertension patients good, especially on the point of view of liver, kidney, stomach and spleen meridian pathways. And bibliographies back up in this conclusion. 5. We classified hypertension patients into 4 factors: that is a spiritual factor, a physical factor, an eating factor and a circulation factor. Among these, a physical factor was seen of high frequency. There is a close connection between a physical factor and liver, kidney, spleen meridian pathways. The consequence was that subjects are suburban residents in the prime of time who had overworked.

A Probabilistic Approach to Forecasting and Evaluating the Risk of Fishing Vessel Accidents in Korea

  • Kim, Dong-Jin
    • 해양환경안전학회지
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    • 제24권3호
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    • pp.302-310
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    • 2018
  • Despite the accident rate for fishing vessels accounts for 70% of all maritime accidents, few studies on such accidents have been done and most of the them mainly focus on causes and mitigation policies to reduce that accident rate. Thus, this risk analysis on sea accidents is the first to be performed for the successful and efficient implementation of accident reducing measures. In risk analysis, risk is calculated based on the combination of frequency and the consequence of an accident, and is usually expressed as a single number. However, there exists uncertainty in the risk calculation process if one uses a limited number of data for analysis. Therefore, in the study we propose a probabilistic simulation method to forecast risk not as a single number, but in a range of possible risk values. For the capability of the proposed method, using the criteria with the ALARP region, we show the possible risk values spanning across the different risk regions, whereas the single risk value calculated from the existing method lies in one of the risk regions. Therefore, a decision maker could employ appropriate risk mitigation options to handle the risks lying in different regions. For this study, we used fishing vessel accident data from 1988 to 2016.

쓴맛 물질에 대한 개인 간 인지능력 차이에 대한 유전학적 연구 (Genetic Factor of Bitter Taste Perception in Humans.)

  • 이혜진;김언경
    • 생명과학회지
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    • 제18권7호
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    • pp.1011-1014
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    • 2008
  • TAS2R38 유전자의 일배체형과 미맹 간익 관계에 대한 이해는 개인에 따라 다양한 음식 선호도의 유전학적 기초와 쓴맛에 대한 민감도로 예측할 수 있는 건강과의 관계에 관한 연구에 많은 도움을 줄 것이다. 또한, TAS2R38과 같이 생체내에서 표현형에 강력한 영향을 준다고 알려진 유전자에 대한 정보는 인간의 미각에 대한 생리학, 생화학적 기능, 분자적 구조를 설명하기 위한 연구에 중요한 정보를 제공할 것이다. 이러한 연구 결과들은 앞으로 각종 인공 감미료 등의 섭취가 증가하면서 급증하고 있는 미각장애에 대한 분자유전학적인 진단과 유전자 치료의 기틀을 마련하는데 기여할 것이다.

첨가제에 따른 전력선 통신용 자심 재료의 전자기적 특성 및 발열거동 (The Electromagnetic and Thermal Properties of Magnetic Core Materials for the Power Line Communication as the function of Additives)

  • 오영우;이혜연;김현식;허정섭;민복기;김종령
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제52권2호
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    • pp.61-66
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    • 2003
  • The electromagnetic properties and thermal behavior of Mn-Zn ferrite cores used for the blocking filter in he Power Line Communication(PLC) application were investigated as the function of additives. The highest density and permeability of 4.98 g/㎤) and 8,221 respectively were obtained to the specimen with composition of MnO 24 mol%, ZnO 25 mol% and Fe$_2$O$_3$ 51 mol% added MnO$_3$ 400 ppm, SiO$_2$ 100 ppm and CaO 200 ppm since the uniform grains were organized and the microstructures were compacted through reduction of pores. The permeability was increased up to 13,904 as temperature of specimen increased to 11$0^{\circ}C$, however, it was decreased precipitously under 100 over 11$0^{\circ}C$. The exothermic behavior was observed in the frequency range from 1 kHz to 1 MHz that the maximum temperature of specimens became 102$^{\circ}C$ at 1 MHz. In the consequence, the Mn-Zn ferrite core developed by this research will maintain the stable electromagnetic properties since the temperature of ferrite core rose to 93$^{\circ}C$ in the range of 10 kHz to 450 kHz bandwidth qualified for PLC.

디지털 PI제어에 의한 브러시리스 직류모터의 안정도 향상 (The Stability Improvement of Brushless DC Motor by Digital PI Control)

  • 윤신용;백수현;김용;김철진;임태빈
    • 조명전기설비학회논문지
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    • 제14권1호
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    • pp.38-46
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    • 2000
  • 본 연구에서는 브러시리스 직류모터의 적합한 수학적 동가 모텔링을 구성하였으며 제어대상 BLOC 모터에 스 웹입력이 있는 상태로 역기전력의 측정에 의한 모터 파라미터를 측정하였다. 그리고 제시된 측정법의 타당성은 스템웅답의 실험결과에 의해서 확인하였다. 또한 훌센서로된 BLOC 모터의 오픈루프 전달함수로부터 얻은 근궤 적법의 결과에 따라 적합한 디지털제어기를 셜계하였으며 속도제어 가변을 위한 제어이득을 결정하였다. 여기서 수정된 Ziegler-Nichols의 동조법은 적합한 디지털 게인 설정을 위해서 적용되었으며 시스템의 안정성은 보드선 도와 실험으로 주파수영역의 해석에 의해서 입증하였다.

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작은 안내 깃이 붙은 원심형 임펠러의 소음 특성에 대한 연구 (A numerical study on the acoustic characteristics of centrifugal impeller with small added vane)

  • 전완호
    • 한국유체기계학회 논문집
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    • 제4권1호
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    • pp.22-29
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    • 2001
  • Centrifugal fans are widely used in industrial practices but the noise generated by these machines causes one of the most serious problems. In general, the centrifugal fan noise is often dominated by tones at BPF(blade passage frequency) and its higher harmonics. This is a consequence of the strong interaction between the flow discharged from the impeller and the cutoff in the easing. However, only a few researches have been carried out on predicting the noise because of the difficulty in obtaining detailed information about the flow field and casing effects on noise radiation. The objective of this study is to develop a prediction method for the unsteady flow field and the acoustic pressure field of a centrifugal fan, and to calculate the effects of small vanes that are attached in original impeller - Splitter impeller. We assume that the impeller rotates with a constant angular velocity and the flow field around the impeller is incompressible and inviscid. So, a discrete vortex method (DVM) is used to model the centrifugal fan and to calculate the flow field. The force of each element on the blade is calculated by the unsteady Bernoulli equation. Lowson's method is used to predict the acoustic source. The splitter impeller changes the acoustic characteristics as well as performance. Two-splitter type impeller and splitter impeller which splitter locates in jet region are good for acoustic characteristics.

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공기저어널 베어링에서 저어널의 고속회전시 공기유막내의 열발생에 관한 연구 (A study on the heat generation into air film as rotating of high speed journal in the air journal bearing)

  • 이종열;성승학;이득우;박보선;김태영
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 2002년도 춘계학술대회 논문집
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    • pp.82-86
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    • 2002
  • The thermal characteristics of high-speed air spindle system with built-in motor are studied. Experiment and finite difference method analysis obtain temperature rise and temperature distribution of housing. For the analysis, air fluid film model is built and temperature rise and distribution in thermal steady state are computed for each rotational speed. Generally, it is said that the heat generation of air bearing is negligible. But the heat generation in air film by heat dissipation can not be negligible especially into high-speed region of the journal. In case that the heat generation of air spindle system is high, natural frequency of the spindle system becomes lower when the thermal state is in steady-state and it means the changes of air bearing stiffness due to the change of bearing clearance. It is shown that the temperature rise of air spindle system causes thermal expansion and induces the variation of bearing clearance. In consequence the stiffness of air bearing becomes smaller.

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