http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
최병근,양보석 한국소음진동공학회 1997 소음 진동 Vol.7 No.4
For high performance rotating machinery, unstable vibrations may occur caused by hydrodynamic forces such as oil film forces, clearance excitation forces generated by the working fluid, and etc. In order to improve the availability one has to take into account the vibrations very accurately. When designing a rotating machinery, the stability behavior and the resonance response can be obtained by calculation of the complex eigenvalues. A suitable modifications of seal and/or bearing design may effectively improve the stability and the response of a rotor system. This paper deals with the optimum length and clearance of seals and bearings to minimize the resonance response(Q factor) and to maximize the logarithmic decrement in the operating speed under the constraints of design variables. Also, for an avoidance of resonance region from the operating speed, an optimization technique has been used to yield the critical speeds as far from the operating speed as possible. The optimization method is used by the genetic algorithm, which is a search algorithm based on the mechanics of natural selection and natural genetics. The results show that the optimum design of seals and bearings can significantly improve the resonance and the stability of the pump rotor system.
보리스 아쿠닌의 소설 아자젤 의 고전 추리소설과의 비교연구:주인공 형상화와 장르 특성을 중심으로
최병근 동북아시아문화학회 2022 동북아 문화연구 Vol.1 No.72
Why are Russians so obsessed with Akunin's mystery novels? The purpose of this thesis is to analyze <Azazel>, the first and representative work of Akunin's Pandorin mystery series, from the perspective of the main character's figure, plot, and genre. I compared Sherlock Holmes with Pandorin from the point of view of ‘the type of detective’, and I reviewed various anti-detective personalities that are different from the classic mystery novels. Azazel, for example, does not deal with murder cases committed by a single individual, which is very unusual in traditional mystery novels. Azazel, the novel's title, is the name of the culprit of this novel. What is the identity of Azazel? It is close to a group or organization. If we keep in mind the fact that Akunin is a writer who has a voice critical of the current undemocratic and authoritarian Russian system, Azazel can be seen as a symbol of totalitarian socialism that the writer is trying to criticize. However, the important thing is not whether Azazel is a Jewish religious organization or a political group trying to realize a particular ideology. It means that any of those belong to a group or an organization, not just a private individual at least. Therefore, the greed of the individual, which is conventional in many classic mystery novels, was not the motive for the murder in Azazel , but the great enlightenment ideology of the salvation of mankind. Also, in this paper, it is reviewed that the Russian mystery novel Azazel is rather closer to the tradition of the French mystery novel than the Anglo-Saxon novel. As discussed the above, the genre characteristics of Azazel should be analyzed closer to a crime novel rather than a detective novel. Lastly, the postmodern nature of this novel is briefly discussed.