• 전기의세계
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• v.46 no.11
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• pp.37-38
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• 1997

산업의 발전과 학문의 영역이 넓어지고, 전문 연구분야의 연구 및 학술활동도 활발하게 진행됨에 따라 전문분과별 연구활동이 필요하게 되었으며 1975. 1. 31일 제 24회 정기 총회에서 학회의 정관이 개정되어 연구회 설치규정이 시행되었다. 전기기기 연구회는 전문분과 연구회로서는 본 학회에서는 최초로 1975년 5월 10일 부산 극동호텔에서 창립총회 및 연구발표회를 가졌으며 초대 간사장으로는 이승원 서울대 교수가 선임되었다. 전기기기연구회는 전기기기분야 특히 정지기, 회전기, 전력변환기등의 분야를 전공하는 회원들의 친목과 학술정보의 교환을 위한 학술발표회와 심포지엄등의 활동을 통해 전기기기 분야의 학문 발전에 기여하게 되었다.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.250-253
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• 2018

Schwannomas originating from the external auditory canal are relatively uncommon whereas they are commonly found in head and neck region. The authors recently experienced a 18-year-old male with a large mass in his right side external auditory canal. The mass was reported as a schwannoma and after the local excision, no symptom or sign of recurrence was identified. We report the case with literatures.

• 전기의세계
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• v.41 no.1
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• pp.7-8
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• 1992

전기학회는 반세기에 걸쳐 눈부신 발전을 거듭해오고 있으며, 그동안 학회에 참여한 회원수는 약8천여명에 달할 것으로 추산되고, 1992년 1월 현재 정회원 2,017명, 종신회원 901명, 준회원 469명, 학생회원 152명, 특별회원 148개소, 합계 3,687명이 본학회에서 활동하고 있다. 본학회는 지역간의 균형있는 발전을 위하여 전국에 11개 지부(부산(221), 대전(276), 울산(263), 대구(164), 광주/전남(126), 전북(65), 포항(171), 마산/창원(239), 충북(76), 광양(81), 강원(109), 괄오한은 회원수임)를 설치운용하고 있다.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.301-306
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• 2018

Immunoglobulin G4-related disease (IgG4RD) is a chronic inflammatory condition characterized by tissue infiltration with lymphocytes and IgG4-secreting plasma cells, as well as varying degrees of fibrosis. We report a case of a 70-year-old man with a rapid-growing cervical mass for several months. Computed tomography and positron emission tomography showed a huge, ill-defined mass involving left thyroid lobe and encasing the common carotid artery, which was clinically and radiologically suspicious for anaplastic thyroid carcinoma. Ultrasonography-guided core needle biopsy was performed and histopathology examination revealed to be consistent with IgG4RD, and the IgG4/IgG ratio was 0.6. After oral corticosteroid was administered, the mass was dramatically resolved. Because IgG4RD often presents as a single localized and infiltrated mass lesion, it can be confused and misdiagnosed as a malignancy. Thus, clinicians should consider IgG4RD as a differential diagnosis in a rapid-growing neck mass to prevent unnecessary and excessive treatments.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.204-211
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• 2018

Background and Objectives : Unilateral maxillary sinus lesions are relatively common but may occur in variety of causes. Therefore, accurate diagnosis and appropriate treatment are needed. The aim of this study is to review patients with unilateral maxillary sinus lesion who underwent surgical treatment and to analyze causes and characteristics of unilateral maxillary sinus lesions with literature review. Materials and Methods : A retrospective chart analysis was completed on 318 patients with unilateral maxillary sinus lesions who underwent surgical treatment from January, 2008 through May, 2018. Clinical history and data such as age, sex, symptoms of initial, radiologic and dental finding, operation type were collected from medical record. Results : Patients mean age was 50.7 years with slight male gender dominance. Most common type was sinusitis (42.7%), followed by odontogenic sinusitis (22.3%) and fungal ball (19.5%). In particular, the most common cause of odontogenic sinusitis was post dental surgery such as implant. Middle meatal antrostomy (90.9%) was accounted for a great part of surgery underwent to patients. Patients complained of post nasal discharge (62.9%), nasal obstruction (40.9%) and odor smell(35.2%) most commonly. Periapical lucency (35.8%) was the most common in CT finding followed by implant perforation (17.3%) and oroantral fistula (12.3%) in odontogenic sinusitis. Conclusions : Unilateral maxillary sinus lesions are relatively common, but they are increasing recently with dental procedures such as implant surgery, and serious adverse effects due to malignant tumors or improper treatment may occur, so accurate diagnosis and treatment are needed.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.29 no.2D
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• pp.199-207
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• 2009

We tried to show the course of UTIS vitalization, promoting to introduce as part of the advanced traveler information system through analysis using traffic information gap model of service and structural equation modeling being used by drivers. The summary of the research is as follows. 1. We could find out the service matters needed to improve and what should be prior that make drivers' use increase through establishing the gap model of service. 2. We could establish the structural equation modeling through using traffic information use satisfaction rate, entire traffic information satisfaction rate as the observation variables. You can say it is the fruit of this research that it was confirmed the entire satisfaction rate of traffic information influenced extension, convenience, accuracy, economical efficiency in order. We could also arrange the base to determine the order of services for vitalization of UTIS in the future through grasping the priority of each service functions classified by factors. 3. It is confirmed that many drivers want multimedia function, driving support function and various functions for the personal convenience in situations except driving, which enable the drivers to enjoy leisures and interests rather than economical functions during driving due to the recent social and economic changes.

• Journal of Korean Library and Information Science Society
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• v.54 no.1
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• pp.1-24
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• 2023

The history of modern libraries in Korea is less than 150 years. Nevertheless, there are various issues about when the word library appeared, how it was transformed, and the name and overall appearance of the library opened by the Busanpo branch of the Nihon Kodo-kai during the enlightenment period. Therefore, this study analyzed and argued many issues. As a result, it was found that the word library appeared in poetry collections, tombstones, and diaries from the early Joseon dynasty. Although it was widely held that the library was first introduced by Yu Gil-jun's 「Seoyugyeonmun, 1895」, it appeared in Lee Hun-young's 「Iisajipryak」 and was also introduced in 「Hanseongsunbo, 1884」. And the first name given to the facility was Kodo library, which was opened by the Busanpo branch on October 10, 1901. Book club, reading club (library), Busan(Busan district) library, Kodo bookstore, Kodo-kai library, etc. which are described in many documents are all errors. The location of the library was a temporary house on a leased site in Seosanhajeong of Yongdusan mountain. And it is presumed that it has secured about one room and 1,000 Japanese and Western books, and provided fee-based services to Japanese residents. Although the Kodo library is not the first public library established by a Korean, it is undeniable that it was the first public library to exist in Korea. Therefore, when defining the character of the Kodo library, it is necessary to have a coolness and discernment beyond national emotions, historical conflicts, and ideological frames.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.321-326
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• 2018

Warthin's tumor is the second most common benign tumor of the parotid gland, which consists of epithelial and lymphoid components. Malignant change is known to be extremely rare. In Korean literature, only a case of low grade adenocarcinoma arising from Warthin's tumor was reported. For squamous cell carcinoma, there has never been reported in Korea. The authors report a case of squamous cell carcinoma arising from Warthin's tumor in a 77-year-old male, who was treated with primary resection. The patient is well without any recurrence or metastasis after 15 months of follow-up.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.295-300
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• 2018

Pleomorphic liposarcoma is extremely rare in the head and neck region. It can be diagnosed by identifying multivacuolated lipoblast with pleomorphism. Most studies have reported that pleomorphic liposarcoma shows an aggressive behavior with poor prognosis. The treatment of choice is wide resection to ensure negative margin. The authors report a case of pleomorphic liposarcoma in a 67-year-old female, who was treated with primary resection of tumor and postoperative radiation therapy. The patient is well without any recurrence or metastasis after 1 year of follow-up.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.259-263
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• 2018

There are many treatment options for the malignant melanoma. Wide excisional surgery is one of the most acceptable treatments for locoregional treatment. Depending on the pathologic classification, however, some other treatment option can be included such as chemotherapy, radiotherapy and immunotherapy as adjuvant treatment. Small cell type malignant melanoma is a rare variant of malignant melanoma. It is known that melanomas manifesting this morphology are invariably in vertical growth phase and have an aggressive course. The authors encountered small cell type malignant melanoma and would like to share the experience of successful treatment with surgery plus immunotherapy as one of adjuvant treatment options.