검색결과

검색조건
좁혀보기
검색필터
결과 내 재검색

간행물

    분야

      발행연도

      -

        검색결과 47

        25.
        2009.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Since too much information has been generated, it became very difficult to find out valuable and necessary information. In order to deal with the problem of information overload, the taxonomy for information visualization techniques has been based upon vi
        4,000원
        34.
        1996.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        There is no doubt that pitch intervals are crucial for cognition and memory. For instance, Deutsch (1969) claims that it is easier for us to remember the absolute pitch of the each and every component tones, and, in fact, most people traspose tunes so easily that it is extremely difficult for them not to do so. In most melody studies, therefore, the focus has been on pitch organization. However, pitch intervals are not the only material in a melody and even a simplest pattern of a melody is not merely a collection of intervals. That is, although pitch intervals are very important in a melody, there are other factors as well which must be involved in forming a melody, such as rhythm, note-grouping and harmonic background. The basic assumption underlying the present paper is that music is more than a "collection" of independent elements, but is a "fusion" of those, and, therefore, the separation of one parameter from others (e.g. the extraction of pitch material) is only theoretically, not perceptually, possible. In a melody, for instance, it is impossible for listeners to hear only pitch intervals at one time and hear only rhythms at the next time. People perceive a melody as "a continuous single entity" and that is the very notion of "melodic contour." Then, what is the smallest unit in a melodic contour? From the viewpoint that a melody is not a static object, but a dynamic process through time, there cannot be any independent symbol which can be seperable from its context. In a Mozart melody, for instance, a leap can be a big event and provoke "tension" to the listners. The same progression within a different context, say,in Webem's pointilistic works, the same-interval leap would not provoke any tension. One does not listen note by note or interval by interval. The minimal perceptual unit of the first movement of Beethoven's Fifth Symphony would be the initial four-note motif rather than the individual pitches or interval in the motif. In most melodies, there are such patterns of progression that replicate sequentially. In the present paper, the sequential replication of pitch movement (up and down) is called a "pitch pattern," and that of time organization (long and short), "time pattern," These two respective patternings are essential in a melody, but one does not perceive them as separate. Sometimes there can be conflicts between the pitch and time periodicities that makes the melody "ambiguous" in terms of the clear distiction of phrases. These two patternings, as the wrap and woof, weave the melodic fabric, and what we perceive is the weaved fabric (a product per se), not the weaving procedure or the rules of weaving. The current trend of the scholarship focused on melodies (in both music theory and cognitive psychology literature) can be summarized, in a word, as "pitch-centrism." "Melody" is often considered as "pitch succession," melodic interval is commonly regarded as "pitch interval." and melodic contour is generally confused with "pitch contour." The inter-dependency beween pitch and time domains demands the study on the interactive process between the two different variables, without which the perception of a melody is impossible, and only possible is either the perception of pitch or that of time.
        5,800원
        35.
        1996.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        오이, 마늘, 생강, 감자 및 무의 압추특성을 규명하기 위하여 식품물성 측정기로 압축힘, 거리 및 시간을 측정하고 이들의 상관관계를 살펴 보았다. 힘-거리 및 거리-시간 곡선은 비교적 간단한 형태를 나타냈고 변곡 점들이 잘 나타나지 않았다. 파괴점까지의 시간은 감자가 압축속도 60mm/min에서 11.79, 압축속도 120mm/min에서 6.16초로 가장 길었다. 마늘은 각각 9.65 및 4.55초로 적게 소요되었는데 이는 시료의 압축강도에 따른 차이점 때문으로 생각된다. 파괴힘은 무와 감자는 압축속도별로 16.64∼20.00N으로 가장 컸으며, 파괴시에 시료는 탐침밑에 뭉개어지는 거동을 보았다. 압축시험시 파괴점 까지의 힘-시간과 거리-시간에 대한 회귀분석 결과 상관계수 값이 0.96이상이었으며, 시료간의 차이는 작았다. 힘-거리 곡선의 기울기는 오이와 마늘이 1.772∼3.385로 가장 컸으며, 감가가 각각 1.743 및 3.338로 작았으며, 거리-시간 곡선의 기울기와는 반비례 관계를 나타냈다.
        4,000원
        36.
        1996.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        지금까지 많은 연구가 되어 있지 않던 Bacillus thuringiensis serover. darmstadiensis의 내독소를 Rengorafin-76 단계적 기울기 원심분리로 분리하여 전자 현미경으로 관찰하여 이중피라미드 구조를 가진 독소 단백질을 확인하였으며 B. thuringiensis serover. kurstaki HD1의 독소 생성유전자와 B. thuringiensis serovar. darmsladiensis의 유전자가 유사성이 있다는 보고를 근거로 하여 B. thuringiensis serovar. HD1의 독소생성유전자를 가진 프로브(pUYBT 9044)로 이용하여 colony hybridization 및 southern hybridization한 결과 2.6Kb EcoRI 단편 및 Southern hybridizationg한 결과 2.6Kb EcoRI 단편 및 3.6Kb HindⅢ 단편을 선발할 수 있었다. 이들 단편들은 B. thuringiensis serovar.kurstaki HD1 독소 유전자와 hybridization시 유사성이 있었다. 특히 3.5Kb HindⅢ 단편은 2.6Kb EcoRI 단편에 클로닝되어 있는 1.8Kb의 HD1 독소유전자와 유사성이 있는 부분을 공유하고 있었으며 1.0Kb정도의 EcoRI-HindⅢ 부분이 더 삽입한 것을 알 수 있었다.
        4,000원
        37.
        1993.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Bacillus cereus B-amylase was purified by Sephadex G-100 gel filtration, CM Sephadex C-50 ion exchange chromatography and CM Sephadex C-50 ion exchange rechromatography. The purified enzyme showed 871unit/㎎ of specific activity. The purified enzyme was identified as homogenious by disc PAGE, SDS-PAGE and analysis of reaction product. The purified enzyme showed optimum pH 7.0. optimum temperature 50℃, and was stable at 0∼50℃ and at pH range of 6∼10.
        4,000원
        38.
        1992.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In 1949, consolidating their previous efforts, Shannon and Weaver published The Mathematical Theory of Communication (i.e. Information Theory), which is, in short, a theory of measuring how effectively a message is transmitted from sender to receiver in a unit of time. Although the theory itself originates in communication engineering, it is also useful in the realm of music, especially in analysis, in twentieth-century composition, and in recent developments in aesthetics and psychology. The term "information," used in information theory, is to be understood not as used in ordinary usage, but as a technical term indicating the measured quantity of a message. Precisely speaking, the word "information" in communication theory rather refers to "the measured amount of information" or "a mathematical abstraction of information content" The notion of "entropy" was also introduced by Shannon and Weaver as a measurement of potential information contained in a message. By definition, the less predictable the communication system is (i.e. the more even the distribution of possible outcomes is), the higher entropy will be. In pitch class analysis, therefore, when the distribution is rectaguar (when all twelve pitch classes are evenly used), one can expect the maximum entropy (3.585). From 1956, many theorists have investigated musical works of various historical periods. Among them, R. Strauss' Lieder turn out to contain the most information, and nursary tunes yield the least information. In general, however, the results could be divided into several categories. That is, stylistic differences of music-historical periods in terms of the use of pitch-classes readily emerged. Although infromation theory is thus useful and even advantageous in music analysis, several questions can be raised with regard to the reliability of the data, the perceptual and cognitive validity of statistical results, and the contextual aspects of music which are totally ignored from the perspectives of statistics. Many scholars have attempted to overcome the technical and philosophical limatations and problems of information theory; as a result, recent research regarding music as a medium of communication has developed in both scope and quantity.
        6,000원
        39.
        1989.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The objective of this study was to propse the way that could enlarge the course in life for the graduates of Department of Food and Nutrition in Junior College. This study was carried out through the analysis of statistical data and questionaries gathered from professors of Department of Food and Nutrition in Junior College and from dieticians of industry, school and hospital. The results of this study could be summarized as follows. 1. The cultivation number of dieticians is too excessive in comparison with the need, and so it is necessary for the colleges to restrict the new establishment of Department of Food and Nutrition for a time, and for the government to tighten the employment system of dieticians. 2. The employment of dieticians will be extended to such fields as school, hospital, public health center and counsel office of nutrition to act as a nutritional educator or a medical server in the future, and consequently the colleges which cultivate dieticians should improve the curriculum to agree with this. 3. It is necessary for the government to renovate the system of dietician arrangement to such a way as establishes a new rule in which additional dietician should be employed in accordance with the feeding number in industry and hospital, as restricts the position-combine of a dietician with a cook in a large feeding institute, as gives the qualification of a nutritional instructor only to the diatician at public health center, as gives the qualification of a nutrition -teacher to the dieticians who completed the course of study for the teaching profession and then allows them to act as a nutrition-teacher in school. 4. The way to give a higher grade of educational opportunity should be given to the graduates of Department of Food and Nutrition in Jonior College for the supplement of dietician`s faculty.
        4,200원
        1 2 3