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Job Creation during Korea’s Transition to a Knowledge Economy
최경수 한국개발연구원 2022 KDI Journal of Economic Policy (KDI JEP) Vol.44 No.3
This paper analyzes job creation when the Korean economy transitioned to a knowledge economy from the 1990s to the 2010s. During this period, the ratio of service to manufacturing jobs increased, knowledge intensive industries grew, and job creation became geographically concentrated around Seoul. The changes slowed down in the 2010s, and overall job growth weakened. To analyze the effect of job creation driver industries during this period, the main part of which are knowledge intensive tradable service industries, on local service job creation, I use a modified version of the local labor market of Moretti (2010). I analyze the job changes during 1995-2005 and during 2006- 2016 in 237 Si-Gun-Gu areas in the Census on Establishments datasets. I find that one manufacturing job creates 0.5 local service jobs and that one tradable service job creates 1.1 jobs within Gu areas of metro cities and 2.3 jobs in Si-Gun areas. The job creation relationship between the tradable and local service sectors was not altered in this period. As more jobs were created in the tradable sector driven by the transition to a knowledge economy, job creation overall remained active, with the opposite also being true.
성인에서 발생한 상부식도 이물에 의한 급성 기도폐쇄 1례
최경수,임영효,이대성,윤준식,박진규,신진호,김경수 대한응급의학회 2012 대한응급의학회지 Vol.23 No.4
Aspiration of the upper airway tract occurs most commonly in infants and children as a result of immature interaction between deglutition musculature and incomplete laryngeal reflex. Typically, the presence of a foreign body in the airway can cause difficulty in phonation, acute respiratory distress,and chronic airway infection. However, rarely, a foreign body lodged in the esophagus may also cause these problems. Although acute airway obstruction due to foreign body aspiration to the airway sometimes occurs in adults,cases involving these symptoms caused by the presence of a foreign body in the esophagus are very rare, and no such cases have been reported in Korea to date. The authors report a case of acute respiratory distress, during improving from an underlying alcoholic dilated cardiomyopathy. Stridor was observed on auscultation due to upper respiratory obstruction caused by an orthodontic prosthesis lodged within the upper esophagus.
최경수 한국저작권위원회 2018 계간 저작권 Vol.31 No.1
This paper is looking at the legislative process for the first copyright law in Korea, and examining the main characteristics of the law in terms of the system and organization. For 12 years after the liberation, Japanese copyright law had been effective in Korea. It was in 1957 when the first copyright law of Korea was enacted and enforced. This paper examined various preparatory documents made by the legislature and the provisions of the law and found a series of strenuous efforts to overcome Japanese copyright law at that time. First, the legislative body understood exactly the nature of copyright law and the principle of automatic protection and reflected those elements in the law. Second, in accordance with underlying structure of the Berne Convention, the articles were organized and the contents composed. The work of authorship is defined in an indirect manner by presenting a list of works, and the creator of the work is defined as an author, and the author has exclusive rights for a bundle of rights. This structure and organization of the law was ground-breaking at that time. Third, the legislators adopted the dualism by dividing the copyright into moral rights and property rights. Summing up, the National Assembly, as proclaimed in the draft, enacted the Copyright Act of 1957 “based on the system of the Berne Convention, not on the colonial Japanese copyright system.” 이 논문은 우리나라가 처음으로 마련한 독자적인 저작권법이 어떤 과정을 거쳐 제정되었는지, 이 법의 체계와 구성상의 특징이 무엇인지 살펴보고 있다. 우리나라는 광복 후에도 12년간 일본 저작권법을 ‘현행 법령’으로 가지고 있다가, 1957년 독자적인 저작권법을 제정·시행했다. 이 논문은 저작권법 제정 과정에서 작성된 여러 입법 준비문서와 제정 법률을 검토하면서 당시 입법자들이 일본 저작권법을 극복하고자 한 일련의 노력을 확인할 수 있었다. 첫째, 입법자들은 저작권법의 본질을 정확하게 파악했다. 저작권의 물권적 성격과 자동발생 주의를 파악하고 이를 법률 곳곳에 반영했던 것이다. 둘째, 베른협약에 내재된 구성 방식에 따라 조문의 순서를 정하고 내용을 확정했다. 먼저 보호대상을 예시하면서 부분적으로 저작물을 정의하고, 이런 저작물의 창작자를 저작자로 정의하면서 이런 저작자를 권리의 귀속 주체로 하여 권리를 부여했다. 이런 구성 방식은 당시로서는 획기적인 것이었다. 셋째, 저작권을 인격적 권리와 재산적 권리로 나눠 이원론을 실천했다. 이상과 같이 입법자들은 “일제 강점기의 ‘저작권법’의 체제를 답습하지 않고 주로 베룬조약의 체재에 의하”여 저작권법을 제정했다.
Al0.21Ga0.79As/GaAs의 변조 빔의 세기에 대한 광반사도 특성 연구
최경수,최순돈,유재인 대한금속·재료학회 2017 대한금속·재료학회지 Vol.55 No.8
The photoreflectance (PR) method is advantageous in that it is more convenient to use at low temperature and high temperature than electroreflectance (ER) due to the modulation of the electric field. This is caused by the recombination of the surface state charge and the minority carriers generated by the laser light. For this reason, PR makes it easier to study the microstructure of semiconductors using non-contact and non-destructive characteristics on the surface of the sample. The position of the Fermi level of the semiconductor can also be determined and the surface electric field can be optically determined. We studied the photoreflectance characteristics of the Al0.21Ga0.79As/GaAs heterostructure. We observed the A region (1.49∼1.53 eV) in the PR spectra by varying the pumping intensity in the sample. The room temperature PR spectra exhibited A region oscillations. This was found to be due to the increasing electric field intensity.