• 음성과학
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• 제8권2호
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• pp.119-132
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• 2001

The purpose of this study is to investigate the intonation of Korean speakers in English sentence adverbials. The intonation of English sentence adverbials is realized by its syntactic and semantic meaning. Many Korean speakers realize falling or stylized high-rising intonation instead of fall-rising in attitudinal adverbials. In addition, Korean students don't realize deaccenting in likelihood adverbials. These results suggest that the intonation patterns in current English textbooks are not sufficient for English intonation education at school.

• 대한음성학회지:말소리
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• 제33_34호
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• pp.99-110
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• 1997

This paper aims to investigate the internal structure of the pre-nuclear intonation pattern and to discuss the inventory and usage of the phrasal tone in Korean based on the acoustic analysis of 80 test sentences. CSL Model 4300 was used for recording and filing, and Multi-speech Model 3700 for analysis. It is shown that the pre-nuclear intonation pattern is composed of one or more phrasal tones, the intonation pattern of the rhythm nit. It is observed that the second phrasal tone begins with a higher pitch than the first one and that the phrasal tones following the second one begins with a lower pitch than the preceding phrasal tone unless a certain word is emphasized. In addition to Level, Rising, Falling, and Rise-Fall phrasal tones already established in Lee (1990, 1991, 1996), Pall-Rise and Rise-Fall-Rise phrasal tones are newly established in this paper. It is observed that Rising and Rise-Fall-Rise phrasal tones are most frequently used as the first phrasal tone of a pre-nuclear intonation pattern and the falling tone as the last phrasal tone, and that Fall-Rise and level tones appear most frequently in the middle of a pre-nuclear intonation pattern.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2002년도 추계학술대회
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• pp.321-339
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• 2002

The result of variance decomposition through yield of Treasury of 30 year maturity of USA, S&P 500 index, stock price of KEPCO has 76.12% of impulse of KEPCO stock price at short-term horizon, but they have 51.40% at long-term horizon. After one year, they occupy 13.65%, and 33.25%. So their effects are increased. By the way, S&P 500 index and yield of Treasury of 30 year maturity of USA have relatively more effect for forecast of stock price oi KEPCO at short-term & long-term. The yield of Treasury of 30 year maturity of USA more than S&P 500 index have more effect for stock price of KEPCO. It is why. That foreign investors through fall of stock price of USA invest for emerging market is less than movement for emerging market of hedge funds through effect of fall of yield of Treasury of 30 year maturity of USA, according to relative effects for stock price of Korea companies. The result of variance decomposition through won/dollar foreign exchange rate, yield of corporate bond of 3 year maturity, Korea Stock Price index(KOSPI), stock price of KEPCO has 81.33% of impulse of KEPCO stock price at short-term horizon, but they have 41.73% at long-term horizon. After one year, they occupy 23.57% and 34.70%. So their effects are increased. By the way, KOSPI and won/dollar foreign exchange rate have relatively more effect for forecast of stock price of KEPCO at short-term & long-term. The won/dollar foreign exchange rate more than KOSPI have more effect for stock price of KEPCO. It is why. The recovery of economic condition through improvement of company revenue causes of rising of KOSPI. But, if persistence of low interest rate continues, fall of won/dollar foreign exchange rate will be more aggravated. And it will give positive effect for stock price of KEPCO. This gives more positive effect at two main reason. Firstly, through fall of won/dollar foreign exchange rate and rising of credit rating of Korea will be followed. Therefore, foreign investors will invest more funds to Korea. Secondly, inflow of foreign investment funds through profit of won/dollar foreign exchange rate and stock investment will be occurred. If appreciation of won against dollar is forecasted, foreign investors will buy won. Through this won, investors will do investment. Won/dollar foreign exchange rate is affected through external factors of yen/dollar foreign exchange rate, etc. Therefore, the exclusion of instable factors for foreign investors through rising of credit rating of Korea is necessary things.

• 한국언론정보학보
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• 제34권
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• pp.7-33
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• 2006

본 논문은 근래 사회적 쟁점이 되고 있는 방송통신융합 현상을 '이윤율의 경향적 하락의 법칙'에 따라 설명하려고 했다. 새로운 단말기 시장을 조성하고 사용료 수입을 획기적으로 늘리기 위해서는 새로운 서비스를 개발해야 하는 바, 그것이 방송 서비스의 결합으로 나타난 것이다. 그 과정에서 자본의 유기적 구성의 변화, 그로 인한 이윤율의 경향적 하락, 그것을 극복하기 위한 다양한 모색 등을 살펴보았다. 통신자본과 전자산업은 생산성 향상을 위해 불변자본 부분에 대한 끊임없는 투자를 진행하는 가운데 자본의 유기적 구성이 높아지고, 따라서 이윤율이 경향적으로 하락하는 현상으로 나타났다. 이윤량은 증가하면서도 이윤율이 하락하는 현상에 대해 사업자들이 대처하는 모습들도 확인하였다. 굳이 이 법칙을 적용해본 것은, 수면 위에 나타나는 모습만 보고 쉽게 비판하는 경향을 탈피하여 현상의 본질을 규명해보고자 하는 것이었다. 진단이 정확해야 처방도 정확할 수 있기 때문이다.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 춘계학술발표논문집
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• pp.450-453
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• 2009

Compositional design and optimization of processing parameters are key factors for controlling and improving the properties of SiC-based electroconductive ceramic composites. Compare economic estimation of SiC ceramic heater with sheathe heater are as followings. (1) Temperature rising time of sheath heater is 1.1 times faster than SiC ceramic heater. (2) Heating insulation of SiC ceramic heater is 2.7 times larger than sheath heater. If SiC ceramic heater is one body type of a product application, contact resistance will decrease. I think that temperature initial rising time is faster than now. The more SiC ceramic heater is used for a long time, the more economic benefit is larger in the view point of heat insulation.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 추계학술발표논문집
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• pp.989-993
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• 2009

Wireless LAN(WLAN) is a rather mature communication technology connecting mobile terminals. IEEE 802.11 is a representative protocol among WLAN technologies. With the rising popularity of delay-sensitive real-time multimedia applications(video, voice and data) in IEEE 802.11 wireless LAN, it is important to study the MAC layer delay performance of WLANs. In this paper, performance for packet delay that recently have been proposed schemes is analysed in wireless LAN and proved performance results via simulation.

• 화약ㆍ발파
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• 제42권3호
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• pp.1-8
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• 2024

발파공에서 기록된 압력-시간 이력들은 사용된 폭약의 종류에 따라 다양한 모양을 보인다. 하지만 이런 이력곡선들은 대개 상승부와 하강부로 구분할 수 있다. 이 특징은 암석발파를 모델링 할 때 폭발압력의 시간이력을 정의하는 데 도움이 될 수 있다. 그러나 Jiang의 폭압함수는 두 개의 형상변수를 가지고 있는데, 이들은 상승시간과는 명확한 관계가 있으나 하강시간과의 관계는 명시적이지 않다. 따라서 본 논문에서는 상승 및 하강시간이 주어지면 상응하는 형상변수들을 정확하게 결정할 수 있는 두 개의 변환식을 유도하였다. 그런 다음, 이 변환식들을 이용하여 여타의 폭압함수들을 Jiang의 함수로 근사하였다. 이와 같은 함수근사의 가능성은 암석발파를 모델링 할 때 폭압함수 자체보다는 물리적으로 중요한 의미를 지닌 상승 및 하강시간에 초점을 맞추도록 해준다.

• 통상정보연구
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• 제8권1호
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• pp.371-398
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• 2006

Gold prices are rising around the world in all major currencies. This is a telltale sign of a Stage Two gold bull where gold decouples from the US dollar. In this study, We analysed a confluence of factors seem to be feeding gold's gains and the typical shape of a secular gold bull---gold bulls' three stages. Stages one, two, and three of a secular gold bull are defined by the major changes. Each stage, considered in turn, makes perfect sense when described in terms of global investor demand. Since Stage One is currency-devaluation driven, the young gold bull is most noticeable in terms of the dominant eroding currency. Now after three or four years of stage one, Stage Two arrives. Stage Two marks a momentous event when gold decouples from the local-currency devaluation. In the case of our gold bull today, Stage Two will be here when gold starts consistently rising faster than the dollar is able to fall. After five or so years of Stage Two gains, gold has a chance at going ballistic in stage three. Stage Three is only ignited if the general public around the world starts growing enamored with gold investing. In summary, the first stage being when insiders and professionals invest in the market. The second stage is when the general public and financial media recognizes that the bull market is real. The third stage is the mania stage when people feel that not only is the bull market real, but it is a must own situation. Through the study we found that gold is entering it now.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제49권3호
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• pp.177-185
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• 2000

In this study, the characteristics of various electricity and high resistivity ash collection were measured at superimposed nanosecond pulse energization. The pulse was generated through the hydrogen thyratron. Superimposed pulse was nanosecond duration pulse that had fast pulse rising time 100[ns], short pulse width 500∼850[ns] and pulse fall time 400∼750[ns]. The results of this study are summarized as followings; Frist, compared with the DC ESP(electrostatic precipitator), superimposed pulse ESP could induce higher peak voltage, and had the about 30[%] reduction of ESP collection area and 50∼80[%] reduction of power consumption. showing the same efficiency. Second, enhancement factor H had 1.9∼3.6 with the increase of migration velocity.

• Journal of Multimedia Information System
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• 제4권4호
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• pp.211-218
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• 2017

Recently, the number of subscribers of the webtoons published by some major internet portal companies and others is increasing and their revenues are continually rising. Accordingly, a number of studies are being conducted for this phenomenon. For the uploaders off webtoons, their works are graded and added up for the promotion review but the criteria of such a promotion system usually fall short of readers' expectations. Although most of the subscribes of webtoons are drawn into subscription mainly by the recommendation of people around them, the responses from the new subscribers were often quite different from what the portal companies have anticipated, affecting the rank of the webtoon. Thus, a promotion management system which provides a reliable and clear method of assessment is proposed in this study including the revenue and copyright management scheme for the cartoonists.