http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조철현,신홍기 대한약리학회 2008 The Korean Journal of Physiology & Pharmacology Vol.12 No.5
Intraplantar injection of melittin has been known to induce sustained decrease of mechanical threshold and increase of spontaneous flinchings. The present study was undertaken to investigate how the melittin-induced nociceptive responses were modulated by changes of metabotropic glutamate receptor (mGluR) activity. Changes in paw withdrawal threshold (PWT), number of flinchings and paw thickness were measured at a given time point after injection of melittin (10μg/paw) into the mid-plantar area of rat hindpaw. To observe the effects of mGluRs on the melittin-induced nociceptions, group I mGluR (AIDA, 100μg and 200μg), mGluR1 (LY367385, 50μg and 100μg) and mGluR5 (MPEP, 200μg and 300μg) antagonists, group II (APDC, 100μg and 200μg) and III (L-SOP, 100μg and 200μg) agonists were intrathecally administered 20 min before melittin injection. Intraplantar injection of melittin induced a sustained decrease of mechanical threshold, spontaneous flinchings and edema. The effects of melittin to reduce mechanical threshold and to induce spontaneous flinchings were significantly suppressed following intrathecal pre-administration of group I mGluR, mGluR1 and mGluR5 antagonists, group II and III mGluR agonists. Group I mGluR antagonists and group II and III mGluR agonists had no significant effect on melittin-induced edema. These experimental findings indicate that multiple spinal mGluRs are involved in the modulation of melittin-induced nociceptive responses.
조철현,홍한솔,신형석 대한수학회 2013 대한수학회지 Vol.50 No.6
The concept of "orbifold embedding" is introduced. This is more general than sub-orbifolds. Some properties of orbifold embeddings are studied, and in the case of translation groupoids, orbifold embedding is shown to be equivalent to a strong equivariant immersion.
조철현,김진태,김성신 한국자원공학회 2016 한국자원공학회지 Vol.53 No.3
An acoustic release is a device used for the deployment and recovery of the oceanographic monitoring instrument. In this study, we designed and manufactured an acoustic release system which can be used in the shallow sea. The system includes the deck acoustic control unit that generates and transmits the release command, and the underwater release unit that receives the acoustic signals, processes them to interpret the release command, and operates the release part. The acoustic release system we developed was tested at a 200 m deep sea. We confirmed the successful functioning of the system. 음향분리기(acoustic release)는 해양 수중 관측기기의 계류와 회수에 유용하게 사용되는 장비이다. 이연구에서는 천해역에서 사용될 수 있는 음향분리기를 개발하였다. 개발 내용은 수중에 음향으로 분리명령을전송하는 선상음향제어장치, 음향신호를 수신하고 이를 처리하여 자신에 해당하는 분리명령을 구분한 후 분리기구 동작기능을 작동시키는 수중장치이다. 개발된 음향분리기를 수심 200 m 실해역에서 실험하여 기능을 성공적으로 확인하였다.
曺哲鉉 연세대학교 대학원 1980 延世論叢 Vol.16 No.1
In this article it is assumed that lab work is a supplement to and a preparation for the class. Experments to determine this issue would be difficult, and the conclusion probably would remain indecisive. First I have attempted to define the functions and describe the different types of labs. In order to analyze lab work, this survey was made through some regional colleges and universities in Seoul which I selected at random. Survey items for the lab evaluation are divided into such categories as, i) lab facility, ii) lab teaching hours per week, iii) lab test, iv) lab materials, and v) lab teaching methods. Most English professors in charge of college English teaching contend that the lab teaching hrs per week have been far less than are needed. They also suggest that lab work should be a supplement to and an extension of the class work in terms of language teaching. The scope and nature of the lab materials require further discussion. Among the data collected, the teaching method in the lab was proves the most important item with regard to the classroom instruction. The most comprehensive content of the lab test was the listening comprehension and dictation test. Test items in the lab should be developed on the basis of Lado's testing theory and the present environment of language learning. I suggest Lado's six steps for preparing lab material, along with a dvision of drills into the categories of elementary, intermediate and advanced, as the most erective war to conduct language lab. The reactions of the teachers to the questionaires concerning the lab teaching method have showed that the same teacher should teach in the class and lab, and they also have suggested that the contents and comprehensive skills of the lab should be closely related to the classroom instruction. Finally it is commented that the language lab in college may be effectively used to help prepare for English entrance examination in the future.