• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2006.05a
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• pp.191-194
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• 2006

Recently the quality improvement of the steel cord product is demanded by the tire market. After wire drawing process, produced residual stresses have a harmful effect on the durability of the wire and become the cause which decreases the quality of the product. Therefore, to improve the quality of the steel cord product, the research regarding the method of residual stress relaxation is necessary. To evaluate the quality of the drawn wire, it is important to measure the residual stress, because the residual stress decides a variety of the quality level which is demanded in the drawn wire. This study proposed a residual stress relaxation method in the drawn wire using FE analysis. The validity of the analysis results was verified by nanoindentation test.

• Journal of Advanced Marine Engineering and Technology
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• v.33 no.7
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• pp.981-986
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• 2009

The application of a cryogenic storage system is growing fast in different kinds of fields including to keep umbilical cord blood. Umbilical cord blood stem plays an important role in the treatment of a blood and immune system related genetic diseases, cancers and blood disorders. This study gives the optimal cryogenic system for cord blood banking. Three-dimensional models are employed and finite element method is used to do structure analyses of all designed models. The results shows model 3 have a good structure properties, and model 4 shows the best structure property as its maximum is 92.9 MPa. The other is too dangerous or infeasible to support load condition that allowed by STS 304. The results can be used in the design of these kinds of systems to obtain good predictions of trends over a wide range of design alternatives and operating conditions.

• The Journal of Korean Physical Therapy
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• v.16 no.2
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• pp.169-180
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• 2004

The aim of this study was to investigate the effect of TENS on muscle pain induced by carrageenan. Muscle pain was induced in male Sprague-Dowley rats by intra-muscular injection of gastrocnemius with $3\%$ carrageenan. nNOS was measured to assess the effect of TENS on muscle pain induced by Carrageenan. The lumbar enlargement of the spinal cord was removed in different groups of animals 24 h after induction of muscle pain. The level of nNOS mRNA was measured in the lumbar section of the spinal cord using RT-PCT. The expression of nNOS was analyzed in the dorsal horn of the lumbar spinal cord by immunohistochemistry. TENS decreased nNOS immunoreactivity in the dorsal horn of the lumbar spinal cord when compared with controls(p<.05). In RT-PCR, TENS decreased nNOS mRNA level of lumbar spinal cord when compared with controls(p<.05). These results suggested that application of TENS attributed to decrease muscle pain.

• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2009.05a
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• pp.286-289
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• 2009

This paper deals with the experimental investigation of the steel cord straightening during the stranding process. The over-twisting and roller straightening process are essential to improve the product quality during the stranding process. To investigate the effectiveness of two processes, four experimental cases are constructed according to the use of an over-twister and two roller straighteners. Three assessment items, such as the residual torsion, the arc-height and the preforming ratio, are measured in each experimental case for the quantitative evaluation of a steel cord. The steel cord shape is also measured to investigate the variation of the straightness efficiently after passing through each process. Finally, the effectiveness of the over-twisting and the roller straightening process is explained based on the experimental results.

• Journal of Korean Medicine Rehabilitation
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• v.20 no.2
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• pp.183-190
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• 2010

Objectives : This study was designed to evaluate clinical effects of Hua-Tuo-Jia-Ji-Xue acupuncture treatment to neuropathic pain of patients with spinal cord injury. Methods : The clinical study was carried out 5 cases with spinal cord injury, who had been treated from December, 2008 to November, 2009 in the department of oriental rehabilitation medicine, Dong-Guk university oriental medical hospital. Results : After treating Hua-Tuo-Jia-Ji-Xue acupuncture, we find out that the VAS(Visual Analog Scale) score was significantly improved after treatment. Conclusions : These result suggest that Hua-Tuo-Jia-Ji-Xue acupuncture were effective to neuropathic pain of spinal cord injury patients.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.6 no.1
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• pp.27-38
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• 1995

It is well known that unilateral vocal cord paralysis is a sign of a disease and not a disease entity. In an attempt to evalute incidence of unilateral vocal cord paralysis related to varoius causes and to analyze our treatment results, the records of 210 patients seen at the Department of Otorhinolaryngology, Yongdong Severance Hospital during the 10-year period from March 1985 to March 1995 were reviewed. Fifty-three patients(25.2%) of the 210 patients with unilateral vocal cord paralysis had surgery-related causes, and intubations including tracheostomy was the most common etilogy among them. One hundred and fifty seven cases(74.8%) was not related to surgery and, among these most common cause was idiopathic. Spontaneous recovery took place in 17(8%) patients. Phonosurgery including type Ⅰ thyroplasty(n=16) and arytenoid adduction(n=10) and combination of them(n=3) yielded good results except intrafold teflon injection(n=4). These results of our series were compared to other series reported over the past decades.

• Journal of Korean Neurosurgical Society
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• v.43 no.2
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• pp.114-116
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• 2008

Spinal cord infarction is uncommon and usually presents with sudden onset of motor and sensory disturbances. We report a case of a 64-year-old women without previous medical history, who presented with acute onset of paraplegia after lifting. However, radiologic examinations did not show any abnormal lesion in the spinal cord. And, cerebrospinal fluid studies also showed no remarkable findings. This case illustrates the cause of spontaneous paraplegia after lifting injury and we consider the presumptive cause of paraplegia as spinal cord infarction.

• Investigative Magnetic Resonance Imaging
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• v.23 no.3
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• pp.279-282
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• 2019

Neurosyphilis is an infection of the brain or spinal cord that is caused by the bacterium Treponema pallidum. Syphilitic myelitis, which involves the spinal cord, is a very rare form of neurosyphilis seen in patients with syphilis. It requires differentiation from other diseases of the spinal cord, including idiopathic transverse myelitis and spinal cord infarction. Herein, we describe the presentation and diagnosis of syphilitic myelitis in a 43-year-old woman, based on a flip-flop sign and candle guttering appearance depicted in magnetic resonance imaging and laboratory tests.

• Physical Therapy Korea
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• v.3 no.1
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• pp.57-64
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• 1996

Spinal cord injury in child often occurs without evidence of fracture or dislocation. The mechanisms of neural damage in this syndrome of spinal cord injury without radiographic abnormality(SCIWORA) include flexion, hyperextension, longitudinal distraction, and ischemia. Inherent elasticity of the vertebral column in infants and young children, among other age-related anatomical peculiarities, render the pediatric spine exceedingly vulnerable to deforming forces. The neurological lesions encountered in this syndrome include a high incidence of complete and severe partial cord lesions. Children younger than 8years old sustain more serious neurological damage and suffer a larger number of upper cervical cord lesions than children aged over 8 years. Of the children with SCIWORA. 52% have delayed onset of paralysis up to 4 days after injury, and most of these children recall transient paresthesia, numbness, or subjective paralysis. The long-term prognosis in cases of SCIWORA is grim. Most children with complete and severe lesions do not recover; only those with initially mild neural injuries make satisfactory neurological recovery.

• Journal of East-West Nursing Research
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• v.22 no.2
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• pp.158-169
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• 2016

Purpose: This study is a qualitative research on the adaptation of the spinal cord injury after fortuitous the accident. Methods: The subjects are fifteen spinal cord injuries. As a study method, this author employed Grounded theory, one of the qualitative research methods. For data analysis, the procedures of Grounded theory methodology was adopted, and then the data collection were collected for six months from March to September 2009. Concerning the frequence of interviewing, each participants went through individual interviewing twice at least and up to four times if necessary. Results: As a result of open coding, total thirty six concepts and twenty categories were drawn. To synthesize these categories, they came to choose 'Going into the new self-made spinal cord injury' as a nuclear category. Typological analysis based on the result of the paradigm model divided them into a reality-avoiding, passive coping, reality-maintaining, reality-overcoming, and self-fulfillment type. Conclusion: As a result of this study, family support to those with spinal cord disability is an important factor for their motive for rehabilitation and adjustment, spinal disabilities were accepted to mostly the disabilities in relations with colleagues. Thus it is necessary to give them a nursing intervention through disability group for successful adjustment to life with disability.