• Journal of the Ergonomics Society of Korea
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• v.12 no.2
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• pp.45-62
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• 1993

This study was aimed to obtain the available information for the clothing constru- ction according to the traits of the cerebral palsied. For this purpose, their abilities of eleven methods seven of fastening performance and seven finger functions were tested and their correlationships were clarified. The results are as follows : 1. The length of time needed to perform each fastening method in descending order is as follows : small button > small snap > culumn button > large button > middle button > large snap > separating zipper > velcro. As the spastic has better function than the athetoid in the performance of all fastening methods, there was a significant difference between the types of handicap and between the handi- capped and the normal, except for velcro fastening style in which there was no significant differ- ence between the types of handicap. 2. In finger functions of the cerebral palsied, according to the types of handicap there was no significant difference among grip, palm fixation and hands coordination, howefer there were significant differences among pulp pinching, lateral pinching, finger rolling and lifting control. As to the correlation between the ability of fastening performance and finger function, there was a high significant correlation between the length of time needed to perform each fastenting and finger function of hands co ordination, and that of finger rolling; and there was a significant correlation between the length of time and pulp pinching, and laternal pinching.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.11 no.1
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• pp.255-260
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• 1989

Unfavorable healing of maxillary fractures may impose functional and esthetic burdens upon the trauma victim. Malunited maxillary fractures are generally a result of treatment delay, incomplete or inaccurate immobilization of the fracture fragments, or infection. Dysfunctions of mastication, distortions in speech, gross defects in facial contour, and related psychic changes are problems which may require secondary correction. When it is necessary to delay definitive treatment or when inadequate maxillary fracture reduction is recognized within the first week following injury, the maxilla can be mobilized by heavy handed dental manipulation under anesthesia or by elastic traction to an external fixation appliance attached to the maxilla by arch bars or an acrylic splint. But malunited maxillary fracture that have progressed to bony malunion require osteotomy procedure in order to establish normal anatomic relationships. This report parents two cases of malunited unilateral maxillary fracture surgically corrected by unilateral Le Fort I osteotomy.

• Clinics in Shoulder and Elbow
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• v.1 no.1
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• pp.132-137
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• 1998

Neurofibromatosis is characterized by its skeletal involvement and cutaneous manifestation. Some patients develop focal area of hypoplasia and atrophy at limbs. We present the case of a 13-year-old boy with a fracture of the hypoplastic clavicle associated with neurofibromatosis and brownish cutaneous macules. The patient received open reduction and internal fixation with a semitubular plate and biopsy was done in order to clarify the pathology.

• Textile Coloration and Finishing
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• v.9 no.3
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• pp.42-49
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• 1997

In order to study the dyeability of reactive dyes fixable at neutral pH, three reactive dyes(DYE-NC, DYE-PC, and DYE-LC) were prepared by the reaction of Cibacron Brilliant Red 3B-A with nicotinic acid, pyridine, and lutidine, respectively. FT-IR and UV/Vis spectrophometry were used to identify the dyes prepared. While the maximum absorption wavelength (&{\lambda}_{max}&) of Cibacron Brilliant Red 3B-A was 515nm, the &{\lambda}_{max}& of DYE-NC, DYE-PC, and DYE-LC were 522nm, 525nm, and 536nm, respectively. The &{\lambda}_{max}& was shifted to the longer wavelength by introducing the electron donating groups to the pyridine ring of Cibacron Brilliant Red 3B-A. All of the reactive dyes synthesized showed good exhaustion and fixation property to cotton fabric at higher temperature and neutral pH condition. It was regarded that the quaternary pyridinium ion functionated as the leaving group instead of the chloride ion. Among them, DYE-NC showed the best dyeability at the above condition. It was considered that the electron withdrawing carboxylic acid group in nicotinic acid enhanced the cationic property of nitrogn in pyridine ring, resulting the good reactivity with OH group in cellulose.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2007.05a
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• pp.145-147
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• 2007

Fluorescent induction lamps are assembly of a Low Pressure Mercury discharge vessel and an inductive power coupler. A vessel containing at least a Low Pressure Mercury vapor, which will be energized by means of the Inductive Coupler. The Ultra Violet radiation from the resulting discharge is converted by a layer of fluorescent material into visible light. The discharge vessel may have means of mechanical fixation to position it to the Inductive power coupler. The component to transform High Frequency electrical energy, by means of induction, in order to energize the Low Pressure Mercury in the discharge vessel. The component includes electrical connection. Fluorescent induction lamps don't have international standards yet. So we try to correspond Korea standards to international standards.

• The Journal of the Korean dental association
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• v.17 no.2 s.117
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• pp.129-135
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• 1979

This 27 year-old male patient had severe mandibular prognathism (right and left mesio-occlusion were 0.4㎝ and 1.2㎝ , respectively). He had good oral health relatively exception of missing teeth. We examined all of his oral and skeletal status with full mouth x-ray taking, study model, and cephalogram. His general condition was good but above examination indicated the surgical operation for the mandibular prognathism. His laboratory tests were within normal limits. We determined surgical operation which was done by extraoral approach bilaterally. Incisions were made bilaterally 1.5㎝ beneath the inferior border of the mandible in the selected area and then the inferior border of the ascending rami was exposed. Retracting the periosteum to the lingual and buccal a slight amount, the cut in the bone was performed by use of bone drill. Avoiding T.M.J. troubles, the proximal segmant was not fixed to anterior segment, being in overlapping state buccally, in order to expect a natural healing by the environmental muscles and ligaments. We had immobilization with intermaxillary fixation by using the multiple Stout's method. He was discharged 17 days after operation. His general condition and operation results were good and satisfactory.

• Journal of The Korean Dental Society of Anesthesiology
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• v.14 no.4
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• pp.227-232
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• 2014

The indication for submandibular intubation is the requirement for intraoperative maxillomandibular fixation (MMF) in the presence of injuries that preclude nasotracheal intubation. Thus, We reported 2 cased of endotracheal intubations via submandibular approach that is applicable in patients with skull base fractures for a reliable general anesthesia. Endotracheal intubation via submandibular approach was applied during general anesthetic procedures for open reduction in three patients with Le Fort II, III or nasoorbitoethmoid (NOE) fractures. No complications due to submandibular intubation, such as infection, postoperative scarring, nerve injury, hematoma, bleeding, or orocutaneous fistula, were observed following submandibular intubation. Endotracheal intubation via submandibular approach is effective in patients with skull base fractures. In our method, the tube connector is removed in orotracheal intubation in order to avoiding the tube removal or displacement. The advantages of this method are very simple, safe, and to provide the good operation field.

• Journal of Korean Neurosurgical Society
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• v.45 no.5
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• pp.306-308
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• 2009

The Mayfield head clamp is the most frequently used head clamp system in the field of neurosurgery. In many cases, surgery is performed with complete reliance on the safety of the MHC. However, we experienced an extremely rare case in which the MHC accidentally broke while installing this system for immobilization of the head and neck. This is a case report with a brief review of the literature. The patient was a 58-year-old female who was scheduled to undergo cervical laminoplasty under the diagnosis of degenerative spondylotic cervical stenosis. In an attempt to install an MHC, we fixed three pins in the scalp; however, the arm of the MHC system broke when force was applied from both directions. Fortunately, the patient remained in a stable position and did not sustain an injury to the head or neck. Fixation was performed using another MHC, and the surgery was performed successfully. The patient was discharged after surgery with no specific complications related to the MHC system. The authors experienced an extremely rare case of MHC breakage during application and report the importance of properly managing and maintaining the instruments in order to prevent fatal injury.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.21 no.3
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• pp.425-432
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• 2012

This paper investigates shape design processes of two implant systems for bone fracture treatment ; Bone plate and Interlocking nail system. These systems can directly fix fractured human bones by surgical operations. The bone plates consist of various shaped plates and implant screws for fixation of fractured human bones with various manual instruments allowing to handle them. The material corresponds to titanium alloy Ti6Al4V because it is harmless material for human body as well as significantly rigid. This system has to be suitably rigid as well as manually bended in orthopedic surgery operations. The Interlocking nail system is a kind of nail implanted inside fractured human bones. The shapes of these systems have to be suitably designed in order to endure various loads as well as avoid any damages. If various shaped prototypes would be fabricated and tested to design the optimal shapes, optimal shapes could be obtained but very long time and expensive costs must be required. In this paper finite element method was applied into these systems. Under various boundary conditions a series of structural analysis was conducted by using ANSYS. Finally important shape factors could be determined on the basis of the analysis results.

• Applied Chemistry for Engineering
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• v.21 no.3
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• pp.243-251
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• 2010

Nitrogen oxides (NOx) in combustion flue gas are currently mitigated by chemical processes such as catalytic reduction, absorption and adsorption. However, development of environmentally sustainable biological processes is necessary in the near future. In this paper, the up-to-dated R&D trend of biological methodologies regarding NOx removal was reviewed, and their advantages and disadvantages were discussed. The principles and applications of bacterial system including nitrification and denitrification and photosynthetic microalgae system were compared. In order to enhance biological treatment rate and performance, the insoluble nitric oxide (NO) should be first absorbed using a proper solubilization agent, and then microbial degradation or fixation is to be followed. The use of microalgal system has a good prospect because it can fix $CO_2$ and NOx simultaneously and requires no additional carbon for energy source.