• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.97-100
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• 2009

A negative waveform was studied to improve the driving characteristics of reset and address periods in ac PDP. Comparative experiments between negative and conventional positive waveforms were performed with 42-inch XGA PDP module. The negative waveform showed lower breakdown voltage than the conventional positive waveform in reset period. Due to its weak and stable discharge during reset period, the contrast ratio was improved by decreasing the black luminance. During address period, the discharge time-lag was measured. The formative time lag ($=T_f$) of negative waveform was improved about 22.8% than $T_f$ of conventional positive waveform.

• Korean Linguistics
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• v.39
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• pp.223-257
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• 2008

The purpose of this paper is to get characteristics about Korean negative sentences in the 17th century. In this paper used method is to classify and collect statistics of negative sentences in the 17th century Korean literatures, then to reclassify according to morphological characteristics of predicates. The subjects of analysis are 'ani'(don't)' and 'mos(can't)' negative sentences except for 'malta(forbid)' negative sentences.

• Korean Journal of Child Studies
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• v.23 no.2
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• pp.31-47
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• 2002

In this study, the perceptions and responses of 136 kindergarten children from middle SES families were recorded in one-to-one interviews about the cause, reasons for expression, and responses to negative emotions. Results showed that children perceived he causes of anger and sadness as 'interpersonal events' and they perceived he cause of fear to be 'fantasy/scary events'. The children tended not to express their negative emotions because they expected negative responses from their peers and mothers, but when they did, the expressed their negative emotions to their mothers rather than to peers. Children responded to the negative emotions of their peers with 'problem-solving focused strategies', but they responded to their mothers' negative emotions with passive strategies, such as 'emotion focused response' and 'avoidance'.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2009.11a
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• pp.522-525
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• 2009

DC-shift phenomenon can be observed in Hybrid rocket combustion. This phenomenon makes performance drop which is structure problem or reduce thrust. Understanding of DC-shift phenomenon, the condition of the hybrid rocket combustion stability can be found. In this paper, the condition of Negative DC-shift was found and made by changing oxidizer flow with pre-post chamber. The Negative C-shift phenomenon and characteristic were defined from the experimental study.

• Journal of the Korean Home Economics Association
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• v.42 no.1
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• pp.197-206
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• 2004

The purpose of this study was to investigate mothers' reactions to their children's negative emotions. The subject were 145 children(three to six-year-olds) and the instruments were Coping with Children's Negative Emotions Scale by Eisenberg(1992) and Temperament Rating Scale by Chun(1992). The main results were as follows； First, mothers, in general, used more positive reactions than negative reactions when their children showed negative emotions. Mothers' education, job, family type and income affected mothers' type of reactions to their children's negative emotions. Mothers' reactions to their children's negative reaction emotions were associated with their children's temperament but not with their children's age, sex and birth order.

• Korean Journal of Human Ecology
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• v.21 no.4
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• pp.705-714
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• 2012

This study investigated the relationships among emotion knowledge, negative emotionality, and autobiographical memory in a sample of 131 three- to five-year-old children attending day care center in seoul. The collected data were analyzed using simple regression and hierarchical multiple regression. The main results of this study were as follows. First, children's emotion knowledge exerted negative effects on their negative emotionality. Second, children's negative emotionality had a positive influence on their autobiographical memory. Finally, the effect of children's emotion knowledge on their autobiographical memory was partially mediated by their negative emotionality. These findings provide a preliminary evidence that children's emotion knowledge and negative emotionality may predict their autobiographical memory.

• Journal of the Semiconductor & Display Technology
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• v.8 no.1
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• pp.27-31
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• 2009

A characteristic of new waveform, called a negative waveform, was studied during reset and address periods. IR distribution, black luminance and time delay were measured to compare the negative waveform with the conventional positive waveform. Based on the analysis of IR measurement, the negative waveform could accumulate more wall charges than the positive waveform. Also the black luminance of negative waveform was lower than that of positive waveform under the same bias and ramp-slope conditions. During address period, the discharge time lag was measured. The negative waveform was showed 0.25 us faster formative time lag and 0.1 us faster average time lag than those of positive waveform.

• Journal of English Language & Literature
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• v.56 no.6
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• pp.1135-1161
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• 2010

The interpretations of degree expressions require the postulation of new entities to represent degrees. Diverse entities such as degrees, intervals, and vectors are adopted for degree expressions. Positive degree sentences and questions are properly construed with the introduction of these entities, but their negative counterparts need more consideration. Negative degree sentences show dual patterns of entailments depending on contexts, and negative degree questions are unacceptable, making weak islands. To explicate the distinct nature of negative degree sentences and questions, Fox & Hackl (2006) provide an analysis based on degrees while Abrusan & Spector (2010) suggest a proposal in interval readings of degree expressions. I have pointed out the theoretical problems of these analyses and proposed an alternative in the framework of the vector space semantics, following Winter (2005). Bi-directional scales in vector space fit well with the dual patterns of negative degree sentences, and the notion of a reference vector is useful to accommodate the contextual influence in negative degree sentences and to deal with the unacceptability of negative degree questions.

• Journal of Families and Better Life
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• v.32 no.3
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• pp.147-156
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• 2014

The purpose of this study was to investigate the moderating effect of negative emotionality on the association between mother-child intimacy and peer acceptance based on differential susceptibility model. According to differential susceptibility model, negative emotionality and difficult temperament is potential differential susceptibility factors. The participants were 3-year-old children recruited from preschools and daycare centers. Teachers completed measurement of negative emotionality. Peer acceptance was measured by peer nomination. Mother-child intimacy was reported by mothers. The results presented that negative emotionality significantly moderated the relation between mother-child intimacy and peer acceptance only for boys. For boys with high level of negative emotionality, mother-child intimacy significantly predicted peer acception. However, for boys with low level of negative emotionality, mother-child intimacy did not associate with peer acception. For girls, negative emotionality did not significantly influence the association between mother-child intimacy and peer acceptance. These findings support differential susceptibility hypothesis that vulnerable children are susceptible to positive parenting effects.

• Science of Emotion and Sensibility
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• v.21 no.4
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• pp.103-112
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• 2018

This study aimed to identify specific psychological and brain activation responses relating to the processing of negative emotions in patients with alcohol dependency. The authors hypothesized that patients with alcohol dependency would demonstrate the abnormal functioning of brain regions involved in negative emotions. Eleven male patients diagnosed with alcohol dependence in an inpatient alcohol treatment facility and 13 social drinkers with similar demographics were scanned using functional magnetic resonance imaging (fMRI) as they viewed film clips that evoked negative emotions. During exposure to negative emotional stimuli, the control group evinced significantly greater activity in the right anterior cingulate cortex (ACC) in comparison to patients with alcohol dependency. Correlation analyses demonstrated a negative association in the relationship between beta values from the right ACC and amygdala in participants classified in the control group. No statistically significant relationship was observed for blood oxygenation level-dependent (BOLD) changes between the two regions in the patient group during the elicitation of negative emotions. On the other hand, patients exhibited a greater activation of the amygdala as negative emotions were induced. These results suggest that alcoholism presents pathophysiology of brain activation that is distinct from the responses of healthy individuals functioning as controls.