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인터넷 환경에서 비언어적 공손 전략으로서 도상문자에 관한 연구
박현구(Hyun-Koo Park) 한국언론학회 2004 한국언론학보 Vol.48 No.1
Icon-characters, which are iconic expressions made of ASCII characters representing nonverbal behaviors, have been regarded as useful means for describing sentiments, adding subtle meanings to text-only messages, or affecting illocutionary forces of a message. Being invented due to technological limitations of text-based environments, icon-characters can substitute for nonverbal behaviors which are used to help communicators avoid face problems frequently occurring during interaction. This paper analyzed between icon-characters, especially emoticons and tildes, and verbal politeness expressions of synchronous CMC interactions were investigated. It was reported that online chatting participants tended to use emoticons more when they communicated with unfamiliar conversational counterparts than when they communicated with familiar ones. It was also reported that positive emoticons were used more on solidarity and tact strategies and negative emoticons were used more on solidarity strategies and indirect(off-record) expressions. It can be concluded that icon-characters are new sign systems as verbal and nonverbal language encounter in text-based environments.
이재홍(Jaehong Lee),박광하(Kwangha Park),구재량(Jae Raeyang Koo),박준수(Jun Su Park),박현구(Hyun-Ku Park) 한국기계가공학회 2023 한국기계가공학회지 Vol.22 No.2
A reliability assessment of the repair weld for the steam-turbine bucket cover was performed. The 410 stainless steel alloy was welded via GTAW (gas tungsten arc welding) with an ER410NiMo filler rod. The welding procedure for the steam-turbine bucket cover was qualified using a tensile test, guided-bend test, and hardness measurement. Two-stage post-weld heat treatment was performed to improve the weld metal toughness. The residual stress was then measured using the indentation test method. The mechanical properties of the welded material were assessed via high- and low-cycle fatigue tests and constant load stress corrosion tests in comparison to the performance of the base metal. The repair weld procedure is demonstrated using an original bucket cover. Finally, a high-speed rotational test of a full-size rotor assembled with a welded bucket cover was performed under steam-turbine start-up and shutdown conditions.
영구형 박동 조율기 전극 감염과 관련된 Actinobacillus actinomycetemcomitans 균혈증 1예
박현구,최성호,구동회,배정호,이창훈,강호석,조재철,김양수,우준희,최상호 대한감염학회 2006 감염과 화학요법 Vol.38 No.4
저자들은 3개월간 지속된 발열을 주소로 내원한 영구형 박동 조율기가 있는 환자에서 99mTc-HMPA0 백혈구 스캔상 상대정맥에 위치한 박동 조율기 전극에 염증소견이 관찰되었고 혈액 배양 검사상 Actinobacillus actinomycetemcomitans이 동정되어 이 미생물에 의한 박동 조율기 전극 감염으로 진단하고 박동 조율기의 제거없이 항균제만으로 성공적으로 치료된 증례를 문헌 고찰과 함께 보고하는 바이다. A 73-year-old man was admitted for intermittent episodes of fever and chills for 3 months. He had been implanted with a permanent pacemaker to control tachy-bradycardia syndrome 7 months before admission. Blood cultures were positive for Actinobacillus actinomycetemcomitans and a 99mTc-hexamethylpropylene amine oxime (99mTc-HMPAO) WBC scan revealed inflammation on the pacemaker lead in extracardiac site. Oral examination revealed several dental caries. The patient was treated with intravenous ceftriaxone, followed by oral ciprofloxacin without removal of the infected pacemaker lead. He was doing well 10 months without febrile episodes after discontinuation of antibiotics. This report describes the first case of A. actinomycetemcomitans bacteremia associated with a pacemaker lead and localized by 99mTc-HMPAO WBC scan