중ㆍ고년여성의 하지 근 기능과 요부 및 대퇴근 횡단면적의 상관관계

김창근,이수경,권영우,박정배 한국체육대학교 체육과학연구소 2001 국제학술대회논문집 Vol.20 No.1

The purpose of the present study was to investigate the relationship between isokinetic muscle function and muscle cross-sectional area (CSA). Twelve women participated in the present study, divided young (n=6, 23.7±1.9 year) and elderly women (n=6, 60.3±6.8 year). Isokinetic strength (power, strength, endurance) and CSA (psoas major and thigh muscles) measured with dynamometer and computerized tomograph, respectively. Cross-sectional area of psoas major muscle in elderly group revealed markedly smaller than in young group, but thigh muscle was not the case. Muscle CSA in young women correlated between power and endurance and psoas major muscle, as well as between muscle strength and CSA of thigh muscle. But no correlation occurred between strength and cross sectional area, except endurance which was highly correlated between CSA and endurance. In conclusion, aging decreases muscle function and CSA. Partially muscle strength correlated with muscle CSA in young women, but no correlation occurred in elderly women. Further study needed to elucidate the exact mechanism related to aging muscle with muscle density and neuromuscular function.

40세 이하 관상동맥 질환자에서 장기적 임상 관찰

이승욱,정명호,박종철,박형욱,조상희,김원,김계훈,이상현,강경태,조장현,김남호,김건형,안영근,조정관,박종춘,강정채 全南大醫大 2001 전남의대학술지 Vol.37 No.2

퍼지 추론을 기반으로 한 컬러 영상에서의 감성 인식

정근호,오재흥,주영훈 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

In this paper, we propose the technique for recognizing the human's emotion by using the color image. To do this, Detect face using skin color abstraction method from color image. And we propose the method for finding man's feature points(eyebrows, eye, nose, mouse) from the face image and the geometrical method for recognizing human's emotion (surprise, anger, happiness, sadness) from the structural correlation of man's feature points. The proposed method in this paper recognize the human's emotion by the Fuzzy. Finally, we have proven the effectiveness of the proposed method through the experimentation.

Structures, Nanomechanics, and Disintegration of Single-Wall GaN Nanotubes: Atomistic Simulations

Jeong Won Kang,황호정,Jun-Ha Lee,Ki OH Song,Ki Ryang Byun,Oh-Keun Kwon,Won Young Choi 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.43 No.I

We have investigated the structural, mechanical, and thermal properties of single-walled GaN nanotubes by using atomistic simulations and a Tersoff-type potential. The Tersoff potential for GaN eectively describes the properties of GaN nanotubes. The nanomechanics of GaN nanotubes under tensile and compressive loadings have also been investigated, and Young's modulus has been calculated. The caloric curves of single-walled GaN nanotubes can be divided into three regions corresponding to nanotubes, the disintegrating range, and vapor. Since the stability or the stiness of a tube decreases with increasing curving sheet-to-tube strain energy, the disintegration temperatures of GaN nanotubes are closely related to the curving sheet-to-tube strain energy.

SBCD(School Based Curriculum Development)에 따른 교육과정 개발 방법의 고찰

정영근 한국교육과정학회 2000 교육과정연구 Vol.18 No.2

본 연구의 목적은 교육과정 개발이 갖는 역동성에 주목하여 SBCD의 특성을 검토하고 학교 수준에서 교육과정을 개발하는 데 필요한 방법에 대해서 고찰하는 데 있다. 여기서 말하는 방법이란 특정 교육과정 개발의 목적 및 의도를 달성하기 위한 수단과 그것을 실시하는 절차 및 기술을 말하는 것이다. 본 연구자는 SBCD에 대한 당위론적 주장을 극복하기 위해서는 방법적 논의가 필요하다고 보고, 교육과정 개발의 역동성이라는 측면에서 SBCD에 따른 교육과정 개발 방법에 대해서 고찰하여 우리나라 학교교육 상황에서 그 실천가능성과 문제점을 검토해 보고자 한다. 이와 같은 연구목적에서 이루어진 고찰을 바탕으로 보면, 먼저 SBCD는 각 학교의 현실에 맞는 교육과정 개발에 목적 및 의도를 두고 60년대의 RDD에 따른 국가 수준의 교육과정 개발의 대안으로 OECD가입국을 중심으로 하여 70년대에 등장한 것임을 알 수 있다. 그러나 SBCD에 따른 교육과정 개발의 방법은 단순히 학교에만 한정시키는 것이 아니라, 그 국가의 사회·문화적 특성에 따라 형성된 전체적인 교육 시스템 하에서 논의되어야 한다고 생각한다. SBCD의 목적 및 의도를 달성하기 위한 방법은 종래의 교육과정 패캐지 또는 자료, 문서작성과 같은 활동에서 벗어나 역동적 교육과정 개발관을 필요로 한다. 왜냐하면 SBCD가 갖는 상호작용적 특성 때문이다. 즉 국가 교육과정과 SBCD간 및 교사를 중심으로 한 참가자들간, 개발단계간, 개발에 다른 교육과정 구성요서간의 상호작용이 이루어진다는 것이다. 이러한 상호작용은 교육과정 개발의 역동성을 유지·지속시키는 원천이 된다. 본 연구에서는 이것을 위해서 '수업상황을 기반으로 한 교육과정 개발'과 '상황분석을 기반으로 한 교육과정 개발', '교육과정 개발의 지원 시스템의 구축을 제시하고 있다. 또한 SBCD에 따른 교육과정 개발에서 교사에게 요구되는 전문성의 하나로 '상황분석의 역량'을 제안하고 있다. The purposes of this study are examining; 1) the characteristics of the SBCD by considering the dynamism of curriculum development, and 2) the method for curriculum development in school level. The method includes means for achieving the purpose of a curriculum development, and process and skill for implementing the curriculum in this study. This study consists of four main topics for the purposes, which are 1) the dynamism of curriculum development, 2) the change of curriculum development theory by the SBCD, 3) the point of dispute in the method of curriculum development of the SBCD, and 4) the framework of the SBCD. According to the study, it is proved that the SBCD appeared for curriculum development by each school in the 1970s mainly from the OECD members instead of using national curriculum in the 1960s. However, the relationship between the SBCD and the national curriculum is interdependent. So that the method of curriculum development of the SBCD should consider both each school situation and education system formed by social and cultural characteristics of the country. To achieve the purpose and intention of the SBCD, it is necessary to have a view of dynamic curriculum development because the SBCD has an interdependent relationship with the national curriculum. According to the dynamic curriculum development, there is interaction not only between the national curriculum and the SBCD but also within curriculum development steps, participants and curriculum elements. This interaction keeps the dynamism of curriculum development. This study shows 'curriculum development based on class situation', 'curriculum development based on situation analysis', 'construction of supporting system for curriculum development' and 'support system of curriculum development'. And this study suggested capability of situation analysis as a teacher's professionalism for curriculum development.

인버터 구동시의 유도전동기의 정상상태특성

정영준,좌종근 濟州大學校 情報通信硏究所 2000 情報通信硏究所論文集 Vol.3 No.-

In this paper. the Γ type eqivalent circuit is used to analyze the steady state characteristics of induction motor driven by inverter source. The base tests for equivalent circuit parameters of induction motor are a no-load test by rated frequency (60Hz) and a blocked rotor test by 25% of rated frequency (15Hz) which are perfomed with inverter source. and measurement of the de resistance of the stator winding. To determine more accurate parameters, four simultaneous equations obtained from equivalent circuit of the no-load test and blocked rotor test are solved by using initial values which are evaluated from simplifed equivalent circuits. The induction motor performances are computed by using these parameters and compared with measured values of the tested motor. Then it is found that the compared results show good agreement between them.

셀러리의 체세포 발생에 미치는 Ethrel의 영향

최정근,소웅영 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-

In order to investigate the effect of ethylene on somatic embryogenesis in celery (Apium graveolens L.). Ethrel ranging from 10^-3 μL/L to 10 μL/L was treated to embryo on various developmental stage. In treatment with 10^-3 μL/L ehtrel at the cell clump stage, the number of somatic embryo was increased up to 42.8% whereas the number of embryo was decreased by 14.3% at the concentration of over 1 μL/L. In treatment on the globular and cotyledonary stage, the somatic embryo development was increased in concentration from 10^-3 μL/L to 1.0 μL/L ethrel whereas embryo development was inhibited in concentraion of 10 μL/L. When AgNO_3 ranging from 0 .1 mg/L to 50 mg/L was treated to embryo on various developmental stage, its developmental rate was decreased in all concentration of AgNO_3 in treatment on cell clump stage. In treatment on globular stage the elongation rate of embryo was increase compared to control, but abnormal embryos were increased conspicuously.

Ezen Good Orthotics 적용이 만성관절통증의 통증감소에 미치는 영향

김영빈,박병근,정동혁 圓光大學校 附設 體力科學硏究所 2005 體力科學硏究 Vol.28 No.-

The aim of the present study is to evaluate effects of Ezen Good Orthotics applied to 30 middle-aged patients with chronic joint pains around shoulders, waists and knees. The effects were measured and analyzed by means of MPQWL, VRS, VAS-I and VAS-U after 4, 8 and 12 weeks, respectively, during the 12-week application of the orthotics. From the findings of the measurement and analysis, following conclusion could be drawn: 1. Significant reductions in MPQWL were confirmed at each period of measurement since the use of Ezen Good Orthotics(p<.001). 2. Significant reductions were also revealed in VRS at each period of the measurement(p<.001). 3. VAS-I, too, turned out to be reduced significantly after 4-, 8- and 12-week use of Ezen Good Orthotics(p<.001). 4. The same reductions were found as well in VAS-U 4, 8 and 12 weeks after the application of the Ezen Good Orthotics(p<.00l). In sum, it may be concluded from the outcomes that the use of Ezen Good Orthotics may help reduce drastically chronic joint pains, mostly effective to remove them speedily and safely. Patients, rehabilitation therapists and health experts are, therefore, recommended to employ the products as safe and effective means to control pains. Continued researches and experiments should further be conducted to collect more data from the larger population of patients with particular diseases in clinical situation, though.

Foot Orthotics 착용이 만성요통의 통증에 미치는 효과

김영빈,박병근,정동혁 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

Chronic low back pain is common. It presents a clinical challenge with widespread implications for resource utilization on a national scale. The causes of chronic low back pain may be mechanical or nonmechanical, nociceptive or neuropathic. Diagnosis is problematic because available tools lack both specificity and sensitivity. In rare instances, the cause of chronic low back pain can be attributed to an identified cause. Comprehensive pain management relies on the use of pharmacotherapy, physical therapy, and a multidisciplinary approach to treatment. Recent studies have shown a benefit for traditional adjunctive therapies and interdisciplinary treatment. The aim of the present study is to evaluate effects of Ezen Good Foot Orthotics applied to 20 middle-aged patients with Chronic Low Back Pain. The effects were measured and analyzed by means of MPQWL, VRS, VAS-I and VAS-U after 4, 8 and 12 weeks, respectively, during the 12-week application of the Foot Orthotics. From the findings of the measurement and analysis, following conclusion could be drawn: 1. Significant reductions in MPQWL were confirmed at each period of measurement since the use of Foot Orthotics(p<.001). 2. Significant reductions were also revealed in VRS at each period of the measurement (p<.001). 3. Significant reductions were also revealed in VAS-I at each period of the measurement (p<.001). 4. The same reductions were found as well in VAS-U 4, 8 and 12 weeks after the application of the Foot Orthotics(p<.001). In sum, it may be concluded from the outcomes that the use of Ezen Good Foot Orthotics may help reduce drastically Chronic Low Back Pain, mostly effective to remove them speedily and safely. Patients, rehabilitation therapists and health experts are, therefore, recommended to employ the products as safe and effective means to control pains. Continued researches and experiments should further be conducted to collect more data from the larger population of patients with particular diseases in clinical situation, though.

지방이식의 다양한 임상적 이용

이근철,정영하,김정태,김석권 대한미용성형외과학회 1997 Archives of Aesthetic Plastic Surgery Vol.3 No.1

Generally alloplastic matrials such as collagen compound and liquid silicone injection. or autologous fat injection have been used for correction of surface irregularity. But, except for autologous fat injection, the other methods have been proved to be not effective or even dangerous. Then with the explosion in the popularity of liposuction, the autologous fat injection has been applied to variable clinical uses for contouring of the soft tissue irregularities. The author performed main operations with fat injection as ancillary procedure in 16 patients from 1993 to 1996, and long term follow-ups were reported. The lesions treated most frequently were cheeks, and others were thighs, legs, nasolabial folds and upper eyelids in order of frequency. The donor sites were lower abdomen, thigh, buttock and cheek. Our method of fat injection was used as an ancillary procedure for improving post-operative results in variable cases (craniofacial microsomia, fibrous dysplasia, asymmetry of leg, etc). And the important technical points in our method for reducing the absorption of fat after injection were atraumatic liposuction, multilayered dispersed injection, and 20% overcorrection. We obtained satisfactory aethetic results without major complications.