• Title/Summary/Keyword: foreign material

Search Result 664, Processing Time 0.04 seconds

A Foreign Trend of Solar Energy (국외 태양광 에너지 동향)

  • Jung, Jong-Wook;Kim, Sun-Gu;Kim, Oh-Hwan;Han, Woon-Ki
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2009.06a
    • /
    • pp.463-464
    • /
    • 2009
  • This paper describes the political and technical trends of foreign 10 countries advanced in solar energy field. In the trend analysis, a couple of statistical data and related references were compared. As a result, all of the advanced countries mentioned in this paper have their own PV policy strategies and regulatory frameworks to strengthen their stable market structures and have financially supported by various types of incentives and tariff systems. It was confirmed that the political basis and technical regulations including electrical safety have to be prepared as soon as possible at both national and rural level in this country.

  • PDF

Complications after craniofacial reconstruction with calcium phosphate cements: a case report and review of the literature

  • Pourdanesh, Fereydoun;Latifi, Noorahmad;Latifi, Fatemeh
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.44 no.5
    • /
    • pp.207-211
    • /
    • 2018
  • Among different graft materials for craniofacial reconstruction, calcium phosphate cements have the advantages of alloplastic grafts and wide use. The authors report a case of foreign body reaction following frontal reconstruction with JectOS (an injectable calcium orthophosphate cement; Kasios) and reviewed the literature on complications of this material after craniofacial reconstruction from 2002 to 2017. Complications were categorized into two groups: immunologic reactions (consisting of seroma collection, chronic sinus mucosa swelling, and foreign body reaction) and non-immune events (infection, fragmentation, and ejection). It is wise to use calcium phosphate-based material only in selected cases with small defects, and long-term follow-up is needed to observe their consequences.

Characterization of Foreign Undergrounded Distribution Cables (외국 지중배전케이블의 특성분석)

  • 고정우;오우정;김종은;서광석
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 1997.11a
    • /
    • pp.428-431
    • /
    • 1997
  • In order to compare with domestic underground distribution cables, the foreign cable which was manufactured in USA, 1982 and has been serviced in field for 13 years was characterized with several tests. Water trees, voids, and convolutions are not found in insulation. In hot oil test, insulation is very clean and there was no separation of insulation and conductor shield. The results of degree of crosslinking, FTIR, and DSC are also usual. Specially, the distribution of OIT is very good, which is different from that of domestic cables. The content of impurities is relatively small. This cables was manufactured with good state and no extraordinary degradation is found.

  • PDF

A Case of Bladder Stone and Vesicovaginal Fistula after McDonald Operation (자궁경부봉축술 후 발생한 방광석 및 방광질루 1 예)

  • Yoon, Chang-Jun;Moon, Ki-Hak;Jung, Hee-Chang
    • Journal of Yeungnam Medical Science
    • /
    • v.23 no.1
    • /
    • pp.108-112
    • /
    • 2006
  • The frequency of a bladder foreign body in the female is lower than in the male, and bladder stones attached to foreign bodies such as non-absorbable suture material are not common. Moreover, vesicovaginal fistulas due to migration or puncture of suture materials into the bladder are rare. In this report, we present a case of bladder stone and vesicovaginal fistula formation in a 29-year-old female patient who had been treated with the McDonald operation for an incompetent internal os of the cervix (IIOC) during pregnancy. The patient was successfully treated by cystoscopic removal of the bladder stone with suture material and conservative treatment for the vesicovaginal fistula.

  • PDF

Successful Localization of Intraoral Foreign Body with C-arm Fluoroscopy

  • Kang, Young-Hoon;Byun, June-Ho;Choi, Mun-Jeong;Park, Bong-Wook
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • v.36 no.5
    • /
    • pp.219-223
    • /
    • 2014
  • During surgical procedures, unexpected material, including surgical instruments and tissue segments, may get lost in the surgical field. Most of these should be immediately removed to prevent further complications, such as vital organ irritation, infection, and inflammatory pseudo-tumor formation. However, it is not always easy to define the exact location of the foreign body, especially if the item is very small and/or it is embedded in the soft tissue of the head and neck region. Intraoperative real-time radiological imaging with C-arm fluoroscopy can be useful to trace the three-dimensional location of small and embedded foreign bodies in the oral and maxillofacial area. We describe an unusual case of an embedded micro-screw in the intrinsic tongue muscle that had been dropped into the sublingual space during a lower alveolar bone graft procedure. The lost foreign body was accurately identified with C-arm fluoroscopy and safely removed without any further complications.

Development of Pneumoperitoneum after Endoscopic Retrieval of Gastric Foreign Body in a Dog (개에서 위내 이물의 내시경적 제거 후 발생한 기복증 증례)

  • Kim, Dong-In;Lee, Youngjae;Kang, Byeong-Teck;Kim, Gonhyung;Chang, Dongwoo;Na, Ki-Jeong;Yang, Mhan-Pyo;Kang, Ji-Houn
    • Journal of Veterinary Clinics
    • /
    • v.31 no.4
    • /
    • pp.333-336
    • /
    • 2014
  • An 1-year-old, intact female Yorkshire Terrier weighing 1.83 kg was referred for vomiting and anorexia. Survey abdominal radiographs revealed marked gastric distention. Ultrasonography showed a hyperechoic material with acoustic shadowing near the pylorus. A foreign body and ulceration were identified during gastroscopic examination. After endoscopic retrieval of gastric foreign body, unexpectedly abdominal distention was developed. Abdominal radiographs revealed pneumoperitoneum, but no leakage of contrast media was observed in gastrointestinal contrast study. Three days after hospitalization with supportive care, no abnormal findings were detected, and then the dog was discharged. This case describes the development of peumoperitoneum during endoscopic retrieval of gastric foreign body.

The Analysis of Academic Achievements for Different Selection Criteria via Linear Mixed Models (혼합모형을 사용한 입학전형에 따른 학업성취도 분석)

  • Park Heungsun;Gi Young Soo;Eo Sun Woong;Kim Shin Young
    • The Korean Journal of Applied Statistics
    • /
    • v.18 no.1
    • /
    • pp.15-26
    • /
    • 2005
  • This study compares the difference of academic achievements for college students who entered a school with different selection criteria, and it was based on the entrance data for Hankuk University of Foreign Studies during 2000-2003. The results of this research can be used as an evidence or a supporting material for the future entrance policies or strategies in other universities.

A Study on the Strategy for Medical Disputes of Foreign Patients, With Focus on Foreign's Agency (의료관광 분쟁에 관한 연구 : 외국인환자 유치업체를 중심으로)

  • You, Sang-Hee;Kim, Kee-Hong
    • Journal of Arbitration Studies
    • /
    • v.26 no.4
    • /
    • pp.111-128
    • /
    • 2016
  • Trade between nations has been considered as exchange for material things. According to recent changes in the paradigm of global trade, trade is shifting focus on the exchange of an immaterial being. Among them, the service sector is growing fast and the health service has shown exceptional growth as the healthcare market is consistently expanding. It is also part of the global service targeting people all around the world. People visiting other countries for medical service tend to spend more money and stay longer than a traveler. For these reasons, global medical service is in the spotlight as a promising and higher value-added business. The global medical service industry has been developed around Asia, specifically Thailand, Singapore, India, etc. Compared to them, Korea has come late into the market of global healthcare and the Korean government is striving to attract foreign patients. Nevertheless, there is a lack of effort to make foreign patients visiting Korea revisit Korea. Regarding foreign patients' medical disputes, these are not yet a problem officially; however, the government cannot leave the matter as it is. Medical dispute related with foreign patients is a highly complex issue due to different languages, nationalities, cultures, etc. Particularly, Korea's medical tourism is developed with Chinese visiting Korea for plastic surgery and cosmetic procedure. Thus, the Korean medical tourism market can be crowded with a lot of minor medical agencies, so-called brokers, getting foreign patients connected to the medical institutions. Consequently, Korea has received a large number of complaints and dissatisfaction. No one can predict and know what's supposed to happen in the future. Efforts of the Korean government and medical institute attracting foreign patients could be in vain. In order to take a step forward, this paper will do research on present conditions and look for strategies of improving this industry, focusing on the part of medical agency and contributing to the improvement of the Korean medical tourism industry.