• Title/Summary/Keyword: t-dimension

검색결과 674건 처리시간 0.02초

내관 전침 자극이 뇌파의 상관 차원에 미치는 영향 - 정보전달 모드도해 분석법을 중심으로 - (The Effect of Electroacupuncture at the PC6 (Naegwan) on the correlation dimension of EEG)

  • 홍승원;황배연;이상룡
    • Korean Journal of Acupuncture
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    • 제20권3호
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    • pp.49-60
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    • 2003
  • The aim of this study was to examine the effects of electroacupuncture(EA) at the PC6 (Naegwan) on normal humans using KarhunenLoeve decomposition method. Electroencephalogram(EEG) is a multi-scaled signal consisting of several components of time series with different dominant frequency ranges and different origins. EEG KarhunenLoeve decomposition method exibit site-specific and state-related differences in specific frequency bands. In this study, KarhunenLoeve decomposition method was used as a measure(D2) of complexity. 30 channel EEG study was carried out in 10 subjects (10 males; $age=21.4{\pm}0.5$ years). Results : We found that the average values and standard deviations of D2 at FP1, FP2, FTC1, FTC2, TT1, TT2, T4, TCP1, P3, P4, T6, OZ channel (p<0.05) were higher than during the acupuncture treatment, and the average values and standard deviations of D2 at F3, F8 channels(p<0.05) were lowered than during the acupuncture treatment. However, the comparison with that before and after the treatment shows no significant differences in all channels.

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국제물류환경과의 정합성 유지를 위한 국가표준포장모듈 연구 (Studies on the National Standard Packaging Modules to improve Dimensional Integrity on the International Distribution Environment)

  • 이명훈;이유석;김종경
    • 한국포장학회지
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    • 제15권1호
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    • pp.7-16
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    • 2009
  • The purpose of this study was to evaluate current packaging modules and design the most acceptable packaging module for domestic and international distribution systems. An optimum packaging module can reduce package costs as well as total distribution costs such as transport, materials handling and warehouse costs. Three different sizes of packaging modules, namely U-type($600{\times}500\;mm$), K -ype($550{\times}366\;mm$) and I-type($600{\times}400\;mm$), were evaluated in terms of the area efficiency and MOEs(measures of effectiveness) for the T-11($1100{\times}1100mm$) and T-12($1,200{\times}1,000\;mm$) pallets. The results showed that the U-type module could fit very well for both pallets and the area efficiency of each module was more than 99 percents. Area efficiency of K-and I-type modules was greatly affected by the pallet footprint dimensions. U-type module also performed better result from MOEs evaluation. Twenty sub-multiple sizes derived from the U-type module were suggested for the future development of the Korean and ISO standards on dimension of transport packages.

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L2 proficiency and effect of auditory source in processing L2 stops

  • Kong, Eun Jong;Kang, Jieun
    • 말소리와 음성과학
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    • 제7권3호
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    • pp.99-105
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    • 2015
  • The current study investigates whether Korean-speaking adults show differential sensitivities to the sources of auditory stimuli (L1 Korean and L2 English) in utilizing VOT and f0 in the perceptual mode of L2 stops, and how the L2 proficiency interacts with the learners' low-level phonetic sensitivities in L2 perceptual mode. 48 Korean learners of English participated in the perception experiments where they rated the goodness of English /t/ and /d/ using an analogue scale. Two sets of stimuli (English and Korean sources) were prepared by manipulating VOT (6-steps) and f0 (5-steps) values of productions by an English male (L2 source condition) and a Korean male (L1 source condition). Findings showed that, in judging /t/-likeness, the listeners responded differently to the two auditory stimulus conditions by relying on VOT significantly more in English source condition than in Korean source condition. The listeners' English proficiency did not interact with these differential sensitivities to the auditory stimulus source either along the VOT dimension or the f0 dimension. The results of the current study suggest that low-level contextual information of the auditory source can affect the learners in faithfully being in the L2 perceptual mode.

COLOCALIZATION OF GENERALIZED LOCAL HOMOLOGY MODULES

  • Hatamkhani, Marziyeh
    • 대한수학회보
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    • 제59권4호
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    • pp.917-928
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    • 2022
  • Let R be a commutative Noetherian ring and I an ideal of R. In this paper, we study colocalization of generalized local homology modules. We intend to establish a dual case of local-global principle for the finiteness of generalized local cohomology modules. Let M be a finitely generated R-module and N a representable R-module. We introduce the notions of the representation dimension rI(M, N) and artinianness dimension aI(M, N) of M, N with respect to I by rI(M, N) = inf{i ∈ ℕ0 : HIi(M, N) is not representable} and aI(M, N) = inf{i ∈ ℕ0 : HIi(M, N) is not artinian} and we show that aI(M, N) = rI(M, N) = inf{rIR𝔭 (M𝔭,𝔭N) : 𝔭 ∈ Spec(R)} ≥ inf{aIR𝔭 (M𝔭,𝔭N) : 𝔭 ∈ Spec(R)}. Also, in the case where R is semi-local and N a semi discrete linearly compact R-module such that N/∩t>0ItN is artinian we prove that inf{i : HIi(M, N) is not minimax}=inf{rIR𝔭 (M𝔭,𝔭N) : 𝔭 ∈ Spec(R)\Max(R)}.

신선 농산물 수출을 위한 골판지 상자 크기의 최적화 연구 (A Study on the Optimization of the Size of the Corrugated Fiberboard Cartons for Export of Agricultural Products)

  • 김민휘;이윤석;이명호;이의학
    • 한국포장학회지
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    • 제30권2호
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    • pp.121-129
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    • 2024
  • This study aimed to focus on the optimization of the external dimension sizes in the corrugated fiberboard cartons (CFCs) for exporting agricultural products. The commercial CFCs of current fresh produces such as paprika, Asian pear, melon, sweet potato, and oriental melon for export were used for this study. The guidelines of the minimum internal dimensions of the refrigerated reefer container, the dimensions of pallets, and the maximum load height of a stack were referred to KS T ISO 668, KS T 1372, and the Container Handbook by the German Insurance Association, respectively. These principles were selected as a ground rule for the external dimensions of CFCs. Package layout design programs of ArtiosCAD and Cape Pack software were used to confirm the box stacking patterns and revise the external dimension of CFCs. The final external dimensions of each CFC were revised from 5 to 30 mm compared to its original dimensions. The maximum load of each stacking box per pallet has been increased from 0.0 to 12.5% compared to its original load.

여성소비자의 사치 - 검약소비 유형분류 및 특성분석 (Classification and Analysis according to the Luxury - Frugality Consumption of Female Consumers)

  • 홍은실
    • 한국생활과학회지
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    • 제22권1호
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    • pp.99-116
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    • 2013
  • The purpose of this research is to explore the levels of luxury-frugality consumption of the female consumers and classify their types on luxury-frugality consumption behaviors. Total of 479 on-line questionnaires were surveyed nationwide for this research in February, 2012. Statistical analysis was achieved by using t-test, one-way ANOVA, Duncan's multiple range test, ${\chi}^2$, and Ward' hierarchical cluster analysis with a total of 479 questionnaires. The research results are summarized as follows: First, the overall luxury-frugality consumption average mark of female consumers was 2.44. Second, all surveyed female consumers were classified into four types based on the means scores of two dimension luxury-frugality consumption behaviors. A total 26.51% of female consumers belonged to Type 1 (named as luxury consumption group) where females scored high points on two dimension luxury consumption behaviors. Type 2 (named as excessive consumption group) occupied 32.78% and this group scored low on the luxurious consumption but high on the overconsumption. Type 3 (named as prefer prestige group) occupied 28.39% and this group scored low on the overconsumption but high on the luxurious consumption. Type 4 (named as frugal consumption group) had 12.32% of females whose scores of two dimension luxury-frugality consumption behaviors were low.

임상연구코디네이터의 역할수행과 관련 요인 (Role Performance and Related Factors of the Clinical Research Coordinator)

  • 황윤선;고일선
    • 간호행정학회지
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    • 제17권4호
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    • pp.524-537
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    • 2011
  • Purpose: The purpose of this study was to analyze the role performance and related factors of the Clinical Research Coordinator (CRC). Methods: A quantitative, cross-sectional design was used. Data were collected using a structured questionnaire from 134 Clinical Research Coordinators in 4 hospitals and analyzed using descriptive statistics, t-test, ANOVA, and Pearson correlation coefficient. Results: The scores for role performance of CRC were high (average 336.51 points of a possible 420 points, mean average $5.74{\pm}0.67$ of a possible 7) and the degree of role performance in the management task sub dimension (mean average $6.12{\pm}0.77$ of a possible 7) was higher than any other sub dimension. Role performance of the CRC was also related to job satisfaction (r=.198, p=.023). Conclusion: The study results indicate that most CRC are nurses and perceive their role as very important. Further the CRC performance of activities of management task and the Coordination/Advocacy task sub dimension were high and higher levels of job satisfaction were related to higher levels of role performance of CRC was. Therefore, strategies related to improvement in the fringe benefit system and work environment should be developed to increase job satisfaction and thus increase job performance.

인터넷 쇼핑몰에서의 패션상품 구매의도 결정요인 (Discriminative Factors of Buying Intention in Fashion Internet Shopping)

  • 김효신;이선재
    • 복식
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    • 제51권6호
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    • pp.117-128
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    • 2001
  • The purposes of this study was to investigate discriminative factors of clothing buying intention on Internet shopping mall. The sample included 435 male(44.8%) and female(55.2% ) adults, and an instrument was developed based on previous studies. The statistical analysis used for this study were factor analysis, 1-test, and LISREL. The results of factor analysis showed that consumers evaluated apparel internet shopping attributes based on perceptional dimensions of internet shopping consisted of clothing quality and value. web service quality and value, and adoption of internet shopping. Each dimension has sub-factors as follows: (1) clothing quality was perceived as 'artistry' 'sociality' and 'practicality'. (2) web interface service quality was perceived as 'visuality', 'advantage', 'response', 'dependability' and 'buying-confidence'. (3) internet shopping adoption was perceived as 'usefulness' and 'convenience'. T-test revealed that consumer's buying intention, re-entry intention, and store attitude were differed concerning all sub-factors including 'usefulness' and 'convenience' in adoption of Internet shopping dimension. As a result of LISREL, clothing buying intention path model was set up as following path. (1) 'artistry', 'sociality' and 'practicality' of clothing quality affected clothing value perception positively. (2) 'visuality', 'advantage', 'response' and 'buying-confidence' of web service quality affected web service value perception positively. (3) clothing and web service value perception affected store attitude positively. (4) store attitude affected clothing buying intention positively. However, Adoption of Internet shopping dimension that was perceived as usefulness and convenience did not affect clothing buying intention path model. Therefore, consumers buying, intention model in internet circumstance could be used nearly the same as real market circumstance.

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간역정신진단검사(簡易精神診斷檢査)를 이용한 칠정상(七情傷) 환자(患者)27례(例)의 심리상태평가 (Psychologic Evaluation with SCL-90-R in patients induced seven-emotion)

  • 이지인;이승희;권순주;정대규;김보영
    • 동의신경정신과학회지
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    • 제14권2호
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    • pp.117-125
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    • 2003
  • Objective : This investigation was carried out to see psychologic evaluation with SCL-90-R in patients induced seven-emotion. Methods : 27 patients induced seven-emotion were administered SCL-90-R. Results : 1. All subscale scores by sex and age were significantly recognized in patients. 2. Dimension depression were significantly recognized in male patients. 3. All subscale scores by sex weren't significantly recognized in patients. 4. Dimension obsesive-compulsive, anxiety were significantly recognized in patients entered through ER. 5. Dimension phobic anxiety were significantly recognized in patients with psychologic history. Conclusion : we have significant differences on comparisons of Scores by sex, admission route and psychologic history of the Patients.

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의복구매시 소비자가 지각하는 가격 (제1보) -의복가격 차원의 타당성 검증- (Consumer's Perception of Clothing Price (Part I) - Testing the Validity of Dimensions of Clothing Price -)

  • 진병호
    • 한국의류학회지
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    • 제22권3호
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    • pp.417-427
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    • 1998
  • Price, one of the marketing 4p's, is a key decision variable affecting market share and the profitability of individual products. For consumers, since price is almost always known to and can be compared, it is one of the most important criteria when they make a purchase decision making. With the consumers' increasing consciousness for price due to economic recession, and the saturation of domestic apparel market, it is expected that the effect of price on consumers' decision making would be greater than ever. This study, the first in two part series, focuses on testing the validity of dimensions of clothing price using Lichtenstein et. at. (1993)'s suggestion. In addition, the effect of demographic variables on the perception of each price dimension was investigated. The subjects were 264 college students living in Seoul, Korea. The data were collected by self -administered questionnaires and analyzed by t-test, ANOVA, regression analysis and Lisrel confirmatory factor analysis. The result supported Lichtenstein et. al. (1993)'s suggestion. That is, consumers' perception of clothing price is not mini-dimensional, but has six dimensions: sale proneness, price mavenism, value consciousness, price consciousness, price -quality schema and prestige sensitivity. Demographic variables partially effect on the consumers' perception of each clothing price dimension. The level of monthly pocket money, however, has influence on all price dimensions. Based on these results, marketing implications for apparel manufacturers were suggested.

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