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김용훈 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.4
After briefly describing a first-principles computational package we have developed, we report its application to the coherent charge transport properties of single N-alkane molecules (N = 6, 8, 10 and 12) thiolate-bridged to flat Au(111) electrodes. The conductance scaling data are compared with those from recent experiments and other calculations. We describe several measures that resolve the so-called band lineup problem and explicitly demonstrate the errors arising from including an insufficient number of electrode metal atoms within the scattering region. After briefly describing a first-principles computational package we have developed, we report its application to the coherent charge transport properties of single N-alkane molecules (N = 6, 8, 10 and 12) thiolate-bridged to flat Au(111) electrodes. The conductance scaling data are compared with those from recent experiments and other calculations. We describe several measures that resolve the so-called band lineup problem and explicitly demonstrate the errors arising from including an insufficient number of electrode metal atoms within the scattering region.
김용훈,김근우,윤의성,민학진,최형택,김상림,조국형 대한골절학회 1999 대한골절학회지 Vol.12 No.4
Purpose: The goal of treatment in elderly patients with hip fractures is restoration of function to preoperative ambulatory status as early as possible. The dementia patients who live in the asylum for the old need longer rehabilitation program for restoration of function, especially walking ability. The authors compare the modalities of the treatment for the hip fracture in the view point of walking ability. Materials and Methods: The twenty-eight dementia patients were operated due to hip fracture. Femur neck fracture were 7 cases, and femur intertrochanteric fracture were 21 cases. The authors analyze these patient on the recovery of walking ability. One patient who died immediately after operation was excluded in this study. The patients were divided into two groups. Of 27 patients, 13 patients were treated with osteosynthesis (Group I), and remaining 14 patients were treated with hemiarthroplasy(Group II). Results: Fixation loss was treated with hemiarthoplasty in two case of osteosynthesis. The dislocation was treated with open reduction in one case of hemiarthroplasty. In the group I, the walking abilities were significantly different between the preoperative (3.85) and the postoperative at 2 weeks(2.46), at 2 months(2.73) and at the final follow-up (2.55)(P$lt;0.05). In the group II, the walking abilities were not significantly different between the preoperative(2.57) and the postoperative at 2 weeks(2.14) and at the final follow-up(2.29)(P$gt;0.05). Conclusion: Although there is no difference between two groups in final walking ability. The group treated with endoprosthesis showed earlier recovery of walking ability.
출혈을 동반한 연부조직의 투명 세포 육종 1례 보고 : 1 Case Report
김용훈,서정욱 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.4
Clear cell sarcoma is a rare tumor of the soft tissue. Its prevalence ranges between 0.5% and 1% of all malignancies of the musculoskeletal system. The deep location of the tumor and its close relation to tendons differentiate this lesion from conventional melanoma. Although clear cell sarcoma can occur in any age group. it mainly affects patients in the third and fourth decade of life. and it occurs more often in women than in men. The have reported a case of clear cell sarcoma with hemorrhage of the lower leg in old female, studied with ultrasonography and MR. Our discussion describes the radiologic findings of the clear cell sarcoma and review of the radiological literature.
金容勳 水原大學校 2007 論文集 Vol.25 No.-
Performance management has been emphasized as a critical factor to increase efficiency in both private and public sector. But methodological progress is somewhat slow especially in the field of performance indicators. This study shows drawbacks in performance indicators in the public sector and suggests improvement alternatives. For this purpose, this study examines several cases in government mintistries and agencies. These cases retain common features that most public organizations have. Most of all, performance management must be led by strategic allignment and priority-setting. Departmental or individual evaluation must not be over-emphasized. Performance indicators are to be as specific and simple as can be. Performance evaluation should work as an Incentive system and must be considered as fair by every individual in the organization.