• Title/Summary/Keyword: stimulus length

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Effects of vowel context, stimulus length, and age on nasalance scores (검사어의 모음 환경과 길이 및 연령에 따른 비음치)

  • Shin, Il San;Ha, Seunghee
    • Phonetics and Speech Sciences
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    • v.8 no.3
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    • pp.111-116
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    • 2016
  • The Nasometer is most commonly used to assess the presence and degree of resonance problems in clinical settings and it provides nasalance scores to identify the acoustic correlates of nasality. Nasalance scores are influenced by factors related to speakers and speech stimuli. This study aims to examine the effect of vowel context and length of stimuli and age on nasalance scores. The participants were 20 adults and 45 children ranging in age from 3 to 5 years. The stimuli consisted of 12 sentences containing no nasal consonants. The stimuli in the three vowel contexts (low, high, and mixed) consisted of 4, 8, 16, and 31-syllable long sentences. Speakers were asked to repeat each stimulus after examiner. The results indicated significant effects of vowel contexts and stimulus length on nasalance scores. The nasalance scores for the high vowel contexts were significantly higher than those for the mixed and low vowel contexts. The nasalance scores for the mixed vowel contexts were significantly higher than those for the low vowel contexts. Speakers had higher nasalance scores for 4-syllable long sentences and 31-syllable long sentences than for 16-syllable long sentences. The effect of age on nasalance scores was not significant. The results of the study suggest that the vowel context and length of speech stimuli should be carefully considered when interpreting the nasalance scores.

The Effect According to Chain Length of Light Response Displacement Current (광반응 변위전류의 체인길이에 따른 영향)

  • 김성진;강용철;정헌상;구할본;최영일;백순기;이경섭
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2000.07a
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    • pp.495-498
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    • 2000
  • In this paper, generation form of displacement current was compared and measured with air-water interfacing induce monolayers which 8A5H with azobenzene and arac.acid mixed. Light response of two monolayers which chain length are different was compared and measured though they are the same isomer. The experimental results are as following; In the displacement current form of mixed monolayers and 8A5H, mixed monolayers which chain length is longer than that of 8A5H caused the displacement current about 40[fA] mole. This is the reason chain length of hydrophobicity in mixed monolayers is longer than that of 8A5H In the case of light stimulus mixed monolayers reacted less than 8A5H about 9[fA]. This is the reason molecule dynamic behaviour in cia and trans was net activated due to its very long chain length.

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Length-dependent Staircase Phenomenon and Calcium Inotropisn in Isolated Rabbit Papillary Muscle (적출 유두근에서 근육길이에 따른 계단현상 및 칼슘 수축력의 변화)

  • Kim, Ki-Whan;Earm, Yung-E;Nam, Kee-Yong
    • The Korean Journal of Physiology
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    • v.14 no.2
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    • pp.7-16
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    • 1980
  • The effects of various inotropic interventions on the shape of the steady state length tension relation and the length-dependent activation process in cardiac muscle were studied. The influence of inotropic interventions upon the action potential was also observed. The range of varying muscle length was from the optimal length$(l_{max})$, where the active tension production is maximal, to 0.85 $l_{max}$. Changes in stimulus frequency or in external bathing Ca concentration constituted the inotropic interventions in this experiment. The papillary muscles were isolated from the rabbit right ventricles and perfused with $HCO-_3\;-buffered$ normal Tyrode solution which was aerated with $3%\;CO_2-97%\;O_2$ mixed gas and kept at $35^{\circ}C$. Resting Passive tension at $l_{max}$ was approximately 30% of the total tension and appeared from the muscle length of 0.90 $l_{max}$. The effect of stimulus frequency on the steady state level of developed tension was: As the stimulus frequency was increased from 0.1 to 0.5 Hz, there was little change in developed tension. As the frequency was increased further, to a value of about 3 Hz, tension increased steeply. Further increase of the frequency to 5 Hz had little additional effect on the developed tension. The length-tension curves for isometric peak tension became more steeper with the degree of potentiation by inotropic interventions. The relative steepness of the normalized length-tension curves where tension production was expressed as a percentage of maximal tension developed at $l_{max}$, varied inversely with the level of inotropic state and these curves were not superimposable one another. Thus at the stimulus frequency of 2 Hz or at the external Ca concentration of 8 mM, the relative decline in the developed tension for a given change in muscle length was considerably less than the decline observed at the frequency of 0.5 Hz or at the concentration of 2 mM Ca. Action potential duration was prolonged significantly as the frequency increased from 0.2 to 2 Hz, and this change in action potential duration was not observable on the changes in muscle length. There was a tendency of the hyperpolarization of membrane potential when the muscle length was shortened from $l_{max}$ to 0.95 $l_{max}$. These results support the hypothesis that there is a length-dependence of the activation process.

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The Effect of Hair-style.Hair-length and Types of Hat design on Impression Formation (헤어스타일.길이와 모자유형이 인상형성에 미치는 영향)

  • 정해선;강경자
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.3_4
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    • pp.460-471
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    • 2004
  • The purpose of this study is to investigate the effect of hair-style (straight and wave), hair-length(short, medium, and long), and type of hat design (no-hat, beret, cloche, bowler, and capeline) on impression formation. The experimental materials developed for this study were a set of stimulus and response scales. The 7-point semantic differential response scales were designed. Thirty stimuli color pictures of various combination of hair length, hair style, and type of hat design were manipulated by computer drawing. The subjects were 360 undergraduates living in Seoul, Kyunggi and Kyungnam. The experimental design was composed of 3 factorial designs. The result of the study can be summarized as follows; Impression factor of the stimulus consisted of the 5 different dimensions (attractiveness, gracefulness, activity, concentration of attention, cuteness). Hair style greatly affected gracefulness. On the other hand, hair length made remarkable effects on attractiveness, concentration of attention, and cuteness. In addition, it has been found that the type of hat design significantly influenced on all the factors except attractiveness as independent variables. In regarding the effect of interaction between each variable, the combination of hair style and hair length had significant effects on gracefulness. In the impression formation of cuteness, the combination of hair length and type of hat design were more significant.

The Impression Evaluation of the Hat's Wearer According to Types of Hat design, Hair-style and Hair-length (모자유형과 헤어스타일 및 길이변화에 따른 모자착용자의 인상평가)

  • Jeong Su-Jin;Jeong Hae-Son;Kang Kyung-Ja
    • Journal of the Korea Fashion and Costume Design Association
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    • v.7 no.3
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    • pp.129-144
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    • 2005
  • The purpose of this research was to find out the effect of hair-style(straight and wave), hair-length(short, medium and iong), and type of hat design(no-hat, beret, cloche, bowler and capeline) on the impressions of hat's wearer . The experimental materials developed for this study were a set of stimulus and response scales(7-point scale semantic). Thirty stimuli color pictures of various combination of hair length, hair style, and type of hat design were manipulated by computer drawing. The subjects were 360 undergraduate students in Seoul, Kyunggi and Kyungnam. The result of this study can be summarized as follows; Impression factor of the stimulus consisted of the 5 different dimensions (attractiveness, gracefulness, brightness, visibilty, cuteness). Each impression of type of hat design, along with hair-style, hair-length had significant effects on gracefulness, visibilty and cuteness. Each impression of hair-style, hair-length, along with type of hat design had significant effects on gracefulness, brightness, visibilty and cuteness. Thus type of hat design, hair-style and hair-length have a significant influence on the impression evaluation of hat's wearer.

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The Study on Accommodation for eyes with pseudo-crystalline lenses (인공수정체안의 조절반응에 관한 연구)

  • Lee, Seok-Ju;Sung, A-Young
    • Journal of Korean Ophthalmic Optics Society
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    • v.9 no.2
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    • pp.203-209
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    • 2004
  • Physiological accommodation in aphakia has been reported 0.50D. Also, accommodation appears in pseudo-crystalline lens. However accommodation was not clear how to works in the eyes. Therefore, the purpose of this study is that accommodation has been affected to changes of axial length and corneal refractive power when the accommodative stimulus was taken 10 diopters to person who has pseudo-crystalline lens. To determine of the accommodative response of pseudo-phakic patients who had no side effects over 2 months, we have measured the axial length, corneal refractive power in 48 patients(96 eyes). When the accommodative stimulus was taken about 10 diopters, the axial length increased by $0.05{\pm}0.06mm$ and corneal refractive power increased $0.04{\pm}0.24$ diopter. The changes of axial length in the myopia was increased by $0.19{\pm}0.18D$, emmetropia was increased by $0.12{\pm}0.16D$ and hyperopia was $0.10{\pm}0.19D$. The results of measurement revealed that the mean value was increased $0.03{\pm}0.13D$ in the myopia, and increased $0.21{\pm}0.13D$ in the emmetropia, and decreased $0.02{\pm}0.34D$ in the hyperopia.

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A Study on the Image Perception of Men's Casual Wear Using Photograph and Computer Simulation Picture (실물사진과 컴퓨터그림에 의한 남성 캐주얼웨어 이미지 지각 연구)

  • Kang, Seung-Hee;Lee, Myoung-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.1
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    • pp.1-10
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    • 2009
  • The purpose of this study was to investigate the effects of the types and the colors of men's casual wear, hairstyles, and the methods of stimulus manufacture on men's image perception. The subjects were 360 women from the metropolitan area of Seoul. The clothing types used for the study were a sweater and a jumper(casual jacket) with jean pants. The clothing colors were beige, indigo, and red. Two hairstyles, the short and the medium length hairs, were compared. Two types of stimuli, the photograph and the computer simulation picture, were used. The results of the factor analysis disclosed five dimensions on men's image: neatness, individuality, ability, activity, and sociability. In general, the photograph stimuli were evaluated more positively in activity, individuality, and sociability than the picture stimuli. The sweaters were perceived higher in ability, activity, and sociability than the jumpers. The Indigo color was evaluated as neat. The medium length hairstyles were perceived as neat and the short hairstyles were perceived as sociable. The jumpers were evaluated lower in individuality in the picture stimuli than in the photograph stimuli. The beige and indigo colors were evaluated to be neater in the picture stimuli than in the photograph. When using the picture stimuli, the men's image wearing the sweaters with the medium length hairstyles were evaluated lower in individuality. When using the photograph stimuli, the men's image wearing the sweater with the short hairstyles were evaluated higher in activity. Men's image wearing the indigo jumper and the beige sweater with medium length hairs were evaluated as high in neatness.

A Study on the Dynamics Behavior of Mixed Organic Monolayers (혼합 유기단분자의 동적 거동에 관한 연구)

  • Kim, Sung-Jin;Lee, Kyung-Sup
    • Proceedings of the KIEE Conference
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    • 2000.11c
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    • pp.470-472
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    • 2000
  • In this paper generation from of displacement current was compared and measured with light stimulus induce monolayers which 8A5H with azobenzene and arac.acid mixed. Light response of two monolayers which dynamics behavior are different was compared and measured though they are the same isomer The experimental results are as following; In the case of light stimulus mixed monolayers reacted less than 845H about 5[fA]. This is the mason molecule dynamic behaviour and trans was not activated due to its very chain length.

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Behavioural Characteristics of Walleye Pollack Theragra chalcogramma by Acoustic Sound Conditioning (음향 순치에 의한 명태의 행동 특성)

  • 박용석
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.32 no.4
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    • pp.331-339
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    • 1996
  • It is most important to understand the behaviour of fish in case of the betterment of the current fishing gear and methods or the development of the conditioning by acoustic sound in marine ranching. This investigation has been attempted to provide for the prediction of the response action of fish to acoustic sound. The experimental fish was conditioned with sound and bait. As the acoustic sound for stimulus, the pure tone of sine waveform at the frequency of 200Hz was used. This pure tone was determined from previous investigation about hearing ability of walleye pollock Theragra chalcogramma. The fork length of walleye pollock used in this experiment was 385~450mm. The conditioning proceeding was recorded in the video tape recorder. Frequency of appearance in the feeding area was analyzed with computer and video tape recorder. The position of fish was tracked using the mouse cursor and picture mixed on the superimpose board. The response of conditioned fish to sound stimulus was appeared in the 8th day firstly. The conditioned fish remembered the stimulus sound for 4 days. Average frequency of appearance in the feeding area during the 30 seconds sound projection or 1 minute after the sound stimulus was 51%, and was higher than before it.

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Effect of stimulation-duration of high frequency electroacupuncture on the neuronal activities in the spinal cord and brainstem using Fos immunohistochemical technique (고빈도전침자극(高頻度電鍼刺戟)의 자극시간(刺戟時間)에 따른 중추신경계(中樞神經系) 신경세포(神經細胞)의 활성변화(活性變化)에 미치는 영향(影響))

  • Sohn Sung-Sae;Nam Sang-Soo;Lee Jae-Dong;Choi Do-Young;Ahn Byoung-Choul;Park Dong-Seok;Lee Yun-Ho;Choi Yong-Tae
    • Journal of Acupuncture Research
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    • v.15 no.2
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    • pp.17-28
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    • 1998
  • The present study was designed to investigate the effect of different stimulation-duration of high frequency electroacupuncturet(EA) treatment on the neuronal activities in the spinal cord and brainstem using Fos immunohistochemical technique. Three different stimulus-duration was used in this experiment : 30minutes, 1 hour and 2 hours. The summerized results were summerized as follow : 1. The number of Fos expression was significantly increased in the spinal cord dorsal horn depending upon the increase of stimulus-duration (P<0.05). Otherwise, there was no significant difference between 30 minutes EA treated group and anesthetic control. 2. High frequency EA biphasic stimulation significantly enhanced the Fos expression in the DR, middle and rostral portion of PAG LD, and caudal PAG LV after 1 hour and 2 hours treatment. The number of Fos immunoreactive neuron in the brainstem was increased accorcting to the length of stimulus-duration. Those results indicate that at least 1 hour EA treatment was necessary to increase the neuronal activities in the spinal cord and brainstem. Those basic data from this study can be applied to establish the effective treatment of EA for pain control in the clinical field.

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