• 한국전문물리치료학회지
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• 제6권4호
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• pp.8-14
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• 1999

이 연구의 목적은 우세한 손과 그렇지 않은 손에서 방사효과가 악력에 어떤 영향을 미치는가 알아보는데 있다. 연구대상은 의료기관에 있는 30명이며 연령은 $32{\pm}9.23$세, 체중분포 $73.8{\pm}23.7$ kg이며, 신장은 $170.26{\pm}10.24$ cm 이었다. 연구 대상자들의 악력은 4가지 다른 조건에서 측정되어졌다. 첫째 조건은, 방사효과가 잠재적으로 가능한 상태에서 우세한 손의 최대악력을 측정, 둘째 조건은, 방사효과가 잠재적으로 불가능한 상태에서 우세한 손의 최대악력을 측정, 셋째 조건은, 방사효과가 잠재적으로 가능한 상태에서 우세하지 않은 손의 최대악력을 측정, 넷째 조건은, 방사효과가 잠재적으로 불가능한 상태에서 우세하지 않은 손의 최대악력을 측정하였다. 연구결과로는 어떤 조건에서도 방사효과가 잠재가능과 불가능의 최대악력비교에서 이원분산분석(two-way ANOVA) 결과 통계학적으로 어떤 차이점도 없었다(F[1, 116] = .0016, p<.05). 이 연구결과는 정상인에 있어서 방사효과가 악력에 미치는 영향을 통계학적으로 발견할 수 없다는 결론을 내렸다. 그 이유로는 방사효과가 최대악력에 미치는 영향이 10~20%의 최대 근육 수축범위이며 척추상위 억제 기전(supraspinal inhibitory mechanism)이 방사효과의 활동을 억제한다는 이론에 의한다.

• The Journal of Korean Physical Therapy
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• 제15권4호
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• pp.488-497
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• 2003

The purpose of this study was to compare the muscle onset time of sternocleidomastoid (SCM) and rectus abdominalis (RA) muscle activity during head lift in supine position between cerebral palsy and healthy children. Ten cerebral palsy children and 10 age, sex-matched healthy children were recruited for this study. Muscle activity of the SCM and RA were collected by surface electromyography (MP100SWS). Results demonstrated that the muscle onset time order was not significantly different between cerebral palsy children and healthy children. However, the DMHT and ST between SCM and RA during head lift in supine position were significantly shorter in healthy children than in cerebral palsy children. Further studies are needed to clarify the mechanism of differences in muscle activation patterns during head lift in supine position in cerebral palsy children compared with healthy children.

• 한국염색가공학회지
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• 제13권1호
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• pp.61-67
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• 2001

In this study, the fabrics were woven with worsted grams of Nm 2/72 and the structure of 5 harness satin on rapier and air-jet loom with different weft insertion mechanism and then fabrics were finished in the same processes. Also the physical properties were measured with KES-FB system and discussed with the characteristics of looms for comparing the difference of physical properties of the worsted fabrics which were woven with two different looms under the same structure. Pot shearing and compression properties, then showed similar behavior and the fabric finishing processes were seemed to affect much more than the difference of the loom types. For the surface roughness, the rapier fabrics showed higher irregularity than the air-jet fabrics.

• Carbon letters
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• 제11권1호
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• pp.9-12
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• 2010

The synthesis of $C_{60}$@MWCNT was carried out at room temperature (${\sim}25^{\circ}C$) from arc-discharge prepared Multi-wall carbon nanotubes (MWCNTs). They were oxidized and acid treated for tube opening. Then $C_{60}$ molecules were encapsulated into MWCNTs by wetting them with $C_{60}$-toluene solution for several minutes followed by ultrasonification. $C_{60}$@MWCNT was cleaned by pure toluene to remove any excess $C_{60}$. $C_{60}$@MWCNT was characterized by electron microscopy, which showed large scale filling of $C_{60}$ into MWCNTs. It was observed that the mechanism of insertion of $C_{60}$ into MWCNTs may be due to the capillary suction at the opening ends of MWCNTs.

• The Journal of Korean Physical Therapy
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• 제7권1호
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• pp.9-19
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• 1995

Therapist have many troubles in the treatment of the patients who have a disorder in Centural Nerve System. It is the role of therapist that is to discriminate and control tone in the patients. In the case of hypertonus to be with hypotonus it is needed for therapist to inhibite the tonus properly without being influenced from the associated reaction. In this study the therapeutic control of the hypertonus and hypotonus through the Bobath approach is presented in detail. It is suggested that the holistic approach using the plasticity of patients base on the Bobath concept is to be used in the improvement of activities and functions of individual patients.

• Clinical and Experimental Pediatrics
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• 제59권9호
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• pp.355-361
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• 2016

The menarcheal age of Korean women has been rapidly decreasing for the last 50 years, and the average menarcheal age of women born in the 1990s is approaching 12.6 years. In addition, interest in early puberty has been increasing recently owing to the rapid increase in precocious puberty. Generally, out of concern for short stature and early menarche, idiopathic central precocious puberty in female adolescents is treated with gonadotropin-releasing hormone analogs. Studies to date have described the association between early menarche and psychosocial problems such as delinquency and risky sexual behavior, as well as physical health problems such as obesity, diabetes, cardiovascular diseases, and breast cancer throughout the lifespan of women. However, the pathophysiological mechanism underlying this association has not been clarified thus far. In this article, we review and discuss the existing literature to describe the current understanding of the effects of early menarche on the physical and psychosocial health of adolescent girls and adult women.

• Journal of the Optical Society of Korea
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• 제20권6호
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• pp.733-738
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• 2016

We calculate optical properties of guided modes of a hybrid-guiding photonic crystal fiber. The design and modeling of such hybrid-guiding PCF is made by replacing air holes with inserts of high refractive index material layer by layer in order. The optical properties such as mode intensity profile, mode dispersion, optical birefringence, confinement loss, and chromatic dispersion during transition of the guiding mechanism are analyzed and discussed. The guided modes in the hybrid-guiding region are also compared with those of reference index-guiding and bandgap-guiding photonic crystal fibers.

• The Korean Journal of Physiology
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• 제1권2호
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• pp.215-230
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• 1967

It has been suggested by Krag and Kountz (1950), Horvath et al. (1955) and Spurr et al. (1955) that the mechanism for prevention of heat loss is less efficient in the aged than in the young. In addition, they observed that peripheral vasoconstriction occurred more rapidly and more intensively in the aged people in response to the cold stimulus. Although it is not clear on the basis of these reports whether the Physical insulation of the aged people in cold would be different from the younger, it is evident that the vascular reactivity in response to cold seems to be altered in the aged people. Hence this investigation was undertaken to investigate the physical insulation of the aged people in a systemic manner by water immersion method which has been successfully applied to the Eskimos and Korean diving women by Rennie et al.

• Clinical Pain
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• 제18권1호
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• pp.44-47
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• 2019

Lying on the side while falling asleep deeply after drinking or taking a sleeping pill can cause compressive neuropathy. We report a 70-year-old male patient of medial cord of left brachial plexus injury (BPI) after deep sleep. The mechanism of the injury might be compression and stretching of brachial plexus. The electrodiagnostic study was performed and the medial cord lesion of BPI was suggested. The ultrasonography image of compression site revealed the nerve swelling of medial cord of brachial plexus and median nerve at the mid-arm level. Pharmacologic treatment including oral prednisolone and exercise training were prescribed. On 6 months after initial visit, neurologic symptom and pain were improved but mild sequelae was remained.

• 한국잠사곤충학회지
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• 제34권1호
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• pp.49-56
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• 1992

반응개시제로 potassium persulfate를 사용하여 견섬유에 MAA를 처리하였을 때의 반응 mechanism을 구명하기 위하여, 열분석과 일련의 기구분석을 행하였으며, 이 중 열분석에 의해 얻어진 결과는 다음과 같다. Differential scanning calorimeter 관찰로부터는 metharcrylamide에 의한 가공견섬유는 견 fibroin과 methacrylamide polymer의 열분석에 의한 peak가 뚜렷하게 분리되어 나타났으며, 가공율이 증가함에 따라 두 peak가 모두 고온측으로 이동하는 것으로 나타났다. 가공견섬유의 흡습율은 가공율이 증가함에 따라 증가하였다.