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하재용 한국지방행정연구원 1996 地方行政硏究 Vol.11 No.2
As a complete system of local self-government is introduced in this country, the demand for better quality public services has rapidly increased among the residents. And the enlarged desire for consuming higher quality public services inevitably leads to the need of change in functional distribution between cental and local governments. Primary goal of this study is to contribute to improve the current functional distribution between central and local governments. To accomplish this goal, this paper summarizes six serious problems of the current functional distribution which have been most frequently quoted by scholars, and proposes some allopathic treatments to each problem. Six problems include i) lack of clear classification of functions ii) too large portion of central government delegated functions iii) financial burden of delegated functions iv) contraints of self-administration v) unclear jurisdicaional demarcation between the National Assembly and local assembly vi) duplicated functional allocation. In conclusion, this paper suggests two things as longer-term treatments to the present problems. One is that general perception of central-local governments relationship should be changed from viewing it competing each other to cooperating. The other is that efficiency as a most respected value in public administration should be viewed being available in an even decentralized administrative system.
윤경재,하재용,한태륜,백남준 대한근전도전기진단의학회 2009 대한근전도 전기진단의학회지 Vol.11 No.2
Objective: To assess the prognostic value of laryngeal electromyography in patients with vocal cord paralysis and to determine which element of laryngeal electromyography is important for predicting recovery of vocal cord paralysis. Methods: Twenty nine cases of vocal cord paralysis were diagnosed by laryngeal electromyography and laryngoscopy within 6 months after the onset of symptom. The elements of laryngeal electromyography were abnormal spontaneous activity, motor unit action potential, and interference pattern. Follow-up laryngoscopy was performed to evaluate the recovery of vocal cord paralysis by viewing the vocal cord motion. Results: Of 29 cases of vocal cord paralysis, 10 cases (34.5%) had resolved vocal cord motion, whereas 19 (65.5%) had persistent vocal cord paralysis on follow-up laryngoscopy examination. Prevalence of abnormal spontaneous activity and abnormal motor unit action potential were not different between the two groups, whereas interference pattern was significantly different (p<0.05). Absence or single interference pattern reflected the permanent vocal cord paralysis. Conclusion: Laryngeal electromyography was a valuable test to predict recovery from the vocal cord paralysis. Initial interference pattern was an important element to predict vocal cord motion.
주축 런아웃이 절삭흔과 표면거칠기에 미치는 영향에 관한 연구
황영국,이춘만,임경진,하재용,신성우 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-
The radial error motion of a machine tool cutter/spindle system is critical to the dimensional accuracy of the parts to be machined. This paper presents an investigation into spindle run-out effects on cutting mark and surface roughness. We experimented the effects of spindle run-out on surface roughness in flat-end milling by cutting AL 7075 workpiece in various cutting conditions. In order to analyze the effects of run-out on the surface roughness, the spindle's radial error motions was measured by mounting a sphere target onto the spindle as a reference. From the experimental results, it was found that spindle run-out makes a directive effects on surface roughness in flat-end milling.