• 대한치과보철학회지
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• 제25권1호
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• pp.195-204
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• 1987

The purpose of this study was to investigate the effect of occlusal splints on the masseteric silent period and the changes of the masseteric silent period after experimental bruxism with occlusal splints. In nine subjects, anterior occlusal splints were fabricated. The jaw-jerk reflex was induced by tapping over mandibular symphysis area with solenoid driven hammer and electromyogram of left masseter muscle was recorded. In the recorded electromyogram of left masseter muscle the silent period duration was measured. This procedure was done before insertion of anterior occlusal splints, after insertion of anterior occlusal splints, after 30 min experimental bruxism with anterior occlusal splints, and 3hr after removal of anterior occlusal splints. The result were as follows; 1. The mean silent period duration was increased after insertion of occlusal splints compared with the mean silent period duration before insertion of occlusal splints. 2. There was no change of the mean silent period duration after 30 min experimental bruxism with occlusal splints compared with the mean silent period duration after insertion of occlusal splints. 3. 3hr after the removal of occlusal splints, the mean silent period duration showed no difference from the mean silent period duration before insertion of occlusal splints.

• 대한전기학회논문지:시스템및제어부문D
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• 제52권10호
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• pp.611-617
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• 2003

A mechanical or electrical stimulation to the mandibular symphysis during a maximal voluntary clenching of the teeth always produces a jaw jerk followed by a silent period (transient stops) in the masseteric EMG (electromyogram). Generally, a mechanical stimulation is followed by a single silent period, and an electrical stimulation is followed by multiple silent periods. In this paper, we propose a new algorithm for determining the duration of the masseter silent period. The decision approach in essentially based upon a segmentation algorithm consisted of variance filter, median filter and gaussian filter. The new adaptive digital notch filter using R-CLMS(reverse constrained least mean-squared) algorithm is proposed for the elimination of powerline(60Hz) noise. At the same time, we design a real time measurement system for the EMG silent period under Window base.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2001년도 하계학술대회 논문집
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• pp.783-786
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• 2001

Recently deep interests and attractions have been paid on the generation of ozone, which is widely used to remove bad smell and to clear water. Silent discharge is considered as one of the most effective methods to generator ozone. In this paper, silent discharge reactors were made, waich were filled with different dielectric materials, and some silent discharge charactistics were investigated experimantaiiy.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.1005-1006
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• 2008

A mechanical or electrical stimulation to the muscle always produces special phenomena, as silent period. Generally, a mechanical stimulation is followed by a single silent period, and an electrical stimulation is followed by multiple silent periods. In this paper, we propose a new algorithm for determining the duration of the silent period.

• 대한치과보철학회지
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• 제25권1호
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• pp.205-212
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• 1987

The purpose of this study was to investigate the duration of the silent period of the masseter muscle in normal subjects after experimental bruxism. The material for this study consisted of 9 male subjects with an age range of 22-24 years who showed normal occlusion clinically and were free from any history or symptoms of temporomandibular joint dysfunction. A jaw-jerk was stimulated by tapping the mandibular symphysis during maximal voluntary clenching with a solenoid-driven hammer. And three separate silent period records were made from the left masseter muscle at the following times: at normal state, after experimental bruxism, 1 week after bruxism. The following conclusions were obtained: 1. The average value of the duration of masseteric silent period during maximal voluntary clenching was $33.62{\pm}1.86msec$ when tap force of approximate 650g was applied at normal state. 2. After experimental tooth grinding for 30 minutes, the duration of masseteric silent period increased to $46.29{\pm}4.40msec$. 3. Comparing the duration of silent period measured at normal state with that measured after 1 week, the duration of silent period showed reproducibility.

• 영어어문교육
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• 제16권3호
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• pp.19-34
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• 2010

This study investigates how EFL learners' chunking ability both in oral and silent reading affects reading comprehension, and how the chunking ability in silent reading relates to that of oral reading. The participants of this study consisted of 30 Korean university students taking a required 'English Reading' course. Chunking is a technique of grouping words into meaningful syntactic units for better understanding. Chunking was measured from pauses in oral reading. Results of this study suggest that the participants who can chunk properly both orally and silently display better comprehension of texts in general. However, chunking in silent reading was found to be a stronger indicator of improved reading comprehension. Also, the chunking skills in silent reading showed a statistically strong correlation with those observed in oral reading, suggesting that the chunking ability in silent reading may develop in parallel with that of oral reading. Oral as well as silent reading should be continuously practiced to improve reading comprehension of all levels of EFL learners, including low levels of learners. There is also a need to encourage students to read aloud with appropriate prosodic cues to help them read in meaningful units of words, therefore increasing EFL learners' comprehension not only in reading but also in listening.

• 공연문화연구
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• 제18호
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• pp.137-169
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• 2009

본 연구에서 필자는 전통인형연행에 등장하는 무언인형에 주목했다. 무언인형을 실마리로 해서 마임의 '몸을 통한 표현'에 연결될 수 있는 인형의 움직임은 물론이고, 무언의 영역을 넘어서려는 여러 방식을 함께 주목했다. 무언인형의 연행방식 고찰과 역사적 전개양상 고찰을 통해서, 필자는 두 가지 사항을 확인했다. 첫 번째 사항은 그 연행양상의 다양성을 통해 무언이라는 한계 혹은 영역을 넘어서고 있다는 점이다. 두 번째 사항은 역사의 초기 단계에서부터 지금까지 무언인형은 줄곧 존재해왔으며, 나름의 유형별 전개 양상도 보이고 있다는 점이다. 이 두 가지 사항을 종합해 보면, 무언인형은 그 탄생 이래 지속적으로 나름의 전개과정을 거치면서 그 존재이유를 확보하고 있었다고 말할 수 있다. 적어도 삼국시대부터 지금까지 무언인형이 여전히 존재하고 있다는 것은 그것이 나름의 의도를 가지고 있었기 때문이다. 그것은 무언인형은 일상에서 벗어나려는 일탈적 욕망과, 상상 혹은 관념을 통한 초월적 자유로움을 추구하는 욕망을 표출하고자 한 것으로 정리할 수 있다. 이것이 곧 무언인형의 존재이유인 것이다. 그런데 이러한 무언인형의 존재이유는 마임의 완성에 꼭 필요한 존재로 중시되는 관객의 역할, 구체적으로 관객의 욕망과 상상력을 발흥시킬 필요성 강조와 긴밀하게 연관된다는 점에서 흥미롭다. 결국 무언인형은 그 연행양상이나 역사적 전개양상을 통해서 무언을 넘어서려는 다양한 시도를 하고, 이를 통하여 '일상의 의사소통과는 다른 비일상적 의사소통 방식'을 부단히 모색하고 있었음을 말하고 있다. 또한 그 연행방식과 의미화양상을 통하여 '관객의 상상력을 극대화하기 위한 모색', '관객의 능동화를 위한 상상력 자극과 마음 속의 연행을 위한 여러 모색'을 수행해 왔음을 말하고 있다. 필자는 이것이 한국에서의 마임 활동의 활성화를 위해 무언인형이 건네는 말이라 생각한다.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2006년도 추계학술대회 발표논문집
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• pp.117-119
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• 2006

This paper discusses the importance of silent pauses in the perception of prosodic boundaries in Korean speech. It is suggested that in speech in general, and in particular in spontaneous speech, silent pauses are neither necessary nor sufficient for the perception of prosodic boundaries. In read speech, however, there is a high correlation between the presence of a pause and the perception of a boundary. An experiment was carried out to determine whether removing the silent boundary from an extract of speech had a significant effect on the perception of boundaries in Korean read speech. Results suggest that while the presence of a silent boundary slightly reinforces the perception of a prosodic boundary, subjects are in general capable of perceiving the boundary without the silent pause.

• 벤처혁신연구
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• 제1권1호
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• pp.165-179
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• 2018

본 연구는 침묵행동이 팀학습에 영향을 미치는 과정에서 정서몰입의 매개 효과를 확인하고자 하였다. 팀 구성원의 침묵행동은 조직의 효과성에 부정적인 영향을 미칠 수 있다는 점에서 팀 리더는 침묵행동에 주의를 기울여야 한다. 본 연구는 국내 기업의 직원 106명에게 설문조사를 실시하여 자료를 수집했으며, 연구 결과는 다음과 같다. 첫째, 침묵 행동은 정서적 몰입에 부정적인 영향을 미치는 것으로 나타났다. 둘째, 침묵행동은 팀학습에 부정적인 영향을 미치는 것으로 나타났다. 마지막으로 정서몰입은 침묵행동과 팀학습 간의 관계에서 매개 역할을 하는 것으로 나타났다. 이는 침묵행동은 팀학습에 직접적으로 부정적인 영향을 미치기도 하지만, 1차적으로 정서적 몰입에 부정적인 영향을 미치고 2차적으로 팀학습에 영향을 미치기도 한다는 것을 의미한다. 따라서 조직에서 팀학습을 증진시키기 위해서는 팀의 침묵 수준을 낮추는 노력뿐만 아니라 정서적 몰입 수준을 높이는 방안도 고민해야 할 것이다. 본 연구의 시사점과 제한점, 그리고 향후 연구 과제에 대해서 논의하였다.

• 보험의학회지
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• 제28권1_2호
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• pp.11-14
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• 2009

It is common to find cerebral infarct and hemorrhage without definite neurologic signs but with lesions on neuroimaging. These lesions are called silent lacunar infarct and cerebral microbleed. Silent lacunar infarct are frequently seen in the elderly and are associated with clinically apparent stroke and vascular dementia. Known stroke risk factors, such as hypertension, diabetes mellitus, smoking, hypercholesterolemia and heart problems may increase the risk of silent lacunar infarct. Metabolic syndrome, homocysteinemia, renal failure and intima media thickness(IMT) are also other risk factors of the silent lacunar infarct. Cerebral microbleed, lacunar infarct and intracerebral hemorrhage(ICH) have similar pathology and pathogenesis. So, cerebral microbleed are coexisted with lacunar infarct, leukoaraiosis, hypertensive ICH and vascular dementia. Cerebral microbleed are associated with volume and recurrence of ICH. Also cerebral microbleed may reflect baseline status of blood brain barrior disruption. Silent lacunar infarct and cerebral microbleed are very important to clinical management, but in the aspect of insurance medicine and independent medical examiners, these lesions are not subject of evaluation for handicap.