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카메라 트래핑을 이용한 육상포유류 모니터링 효율성 평가
정철운 ( Chul Un Chung ),차진열 ( Jin Yeo Cha ),김영채 ( Young Chae Kim ),김성철 ( Sung Chul Kim ),권구희 ( Gu Hee Kwon ),이화진 ( Hwa Jin Lee ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2014 한국환경복원기술학회지 Vol.17 No.3
The aim of this study was to evaluate the monitoring efficiency of camera trapping in wild animals and to determine ways to increase its utilization. Nineteen sensor cameras were installed in Sobaeksan National Park from October 2012 to September 2013. During the study period, a total of 1045terrestrial mammal photos were secured and 15 species habitats were identified. Shooting frequency was higher for medium and large mammals, especially full images of carnivores accounted for approximately 83%. A comparison of track surveys revealed that camera trapping was highly efficient and helped in capturing real image of species. The supply of lure and bait stimulates the sense of smell in carnivores, which further enhances the capturing of images by camera trapping. The results of this study provide data on the ecological characteristics of mammals, which can aid in determining habitat use by these animals, and thereby facilitate prevention of crop damage by wildlife.
동맥성 발기부전증 환자의 진단에서 선택적 혈관조영술의 역할의 재평가
정세열,심형진,이종범,송인섭,류대식,김영구,김양수,이용철 중앙대학교 의과대학 의과학연구소 1993 中央醫大誌 Vol.18 No.4
For the evaluation of role of internal pudendal arteriogram in arteriogenic impotence, 70 selective arteriograms of 35 suspected postraumatic impotence patients were analyzed and compared to results of penile bracial index(PBI), duples ultrasonograms of cavernosal artery and cavernosal artery systolic occlusion pressure(CASOP). The results of selective internal pudendal arteriography(SIPA) were classified as 44 cases with normal vascular findings and 26 with abnormal findings. Between two groups, ther was no significant difference in peak velocity and diameter of cavernosal artery in duples ultrasonograms, in pressure difference between systolic pressure of brachial artery and CASOP, and in PBI. These results are also true even in cases with nonvisualization of cavernosal artery casued by complete occlusion of internal pudendal artery. In conclusion, selective pudendal arteriogram is the only one reliable study for the evaluation of arteriogenic impotence, although further study is needed to define the role of other noninvasive approaches.
Comparison of Serum CRP and Procalcitonin in Patients after Spine Surgery
Chung, Yeon-Gu,Yu, Sam-Won,Kwon, Young-Joon,Shin, Hyun-Chul,Choi, Chun-Sik,Yeom, Joon-Sup The Korean Neurosurgical Society 2011 Journal of Korean neurosurgical society Vol.49 No.1
Objective: Classical markers of infection cannot differentiate reliably between inflammation and infection after neurosurgery. This study investigated the dynamics of serum procalcitonin (PCT) in patients who had elective spine surgeries without complications. Methods: Participants were 103 patients (47 women, 56 men) who underwent elective spinal surgery. Clinical variables relevant to the study included age, sex, medical history, body mass index (BMI), site and type of surgery, and surgery duration. Clinical and laboratory data were body temperature, white blood cell count (WBC), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and PCT, all measured preoperatively and postoperatively on days 1, 3, and 5. Results: PCT concentrations remained at <0.25 ng/mL during the postoperative course except in 2 patients. PCT concentrations did not correlate with age, sex, DM, hypertension, BMI, operation time, operation site, or use of instrumentation. In contrast, CRP concentrations were significantly higher with older age, male, DM, hypertension, longer operation time, cervical operation, and use of instrumentation. Conclusion: PCT may be useful in the diagnosing neurosurgical patients with postoperative fever of unknown origin.
ECAP 공정을 거친 1050 Al 합금 판재의 전기화학 특성에 관한 연구
정민경,최윤석,김정구,김영만,이재철,석현광 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.8
The effect of equal channel angular pressing (ECAP) pass number on the electrochemical properties of AA 1050 (UNS A91050) in 0.1M Na₂SO₄ solution containing 100 ppm chloride were investigated by electrochemical techniques (potentiodynamic test, potentiostatic test, electrochemical impedance spectroscopy (EIS) and surface analyses (OM, SEM, EDS). The ECAPed specimens that have a various numbers of passes from N=l to N=5 were selected for electrochemical experiments in this study. The results of potentiodynamic test indicated that the breakdown potential increased with increasing the ECAP pass number. EIS measurements also showed that the corrosion resistance of the AA 1050 increased with increasing the ECAP pass number at the passivation and breakdown states. The results of surface analyses (SEM, EDS) showed that silicon-containing impurities were observed on the surface of the alloy. It was found that the size of these Si-containing impurities decreased with increasing the ECAP pass number. The Si-containing impurities induced the microgalvanic reaction(i) between the Al matrix and the Si-containing mixed oxide and (ii) between the Al matrix and the Si-containing impurities. Due to its ultrafine-grained microstructure, ECAPed AA 1050 had smaller Si-containing impurities, and reduced microgalvanic currents. Thus, in the case of ECAPed AA 1050, it has increasing corrosion resistance with increasing ECAP pass number because of its small cathodic impurities.
정제명,왕순주,안무업,박재형,유기철,박준석,강재구,제프리 아놀드 대한응급의학회 1999 대한응급의학회지 Vol.10 No.4
Background : To assess the current level of development of emergency medicine (EM) systems in Asia. Method : Survey of EM professionals from 12 Asian countries during a 90-day period from August to November 1998. 12 EM professionals from 12 Asian countries completed the survey. All participants were physicians. 7 participants (58%) gave presentations at an international EM conference during the study period. Respondents completed a 103 question questionnaire about the status of EM specialty, academic, patient care, information and management systems and the factors influencing the future of EM in their countries. Results : 92% of respondents stated that their countries have hospital-based emergency departments (ED). More than 80% of respondents reported that their countries have EMS systems and ED systems for trauma care and patient transfer. More than 70% stated that their countries have national EM organizations, EM research, national EMS activation phone numbers, ED systems for pediatric emergency care, emergency physician (EP) training in ACLS and ATLS and peer review. More than 60% reported official recognition of EM as an independent specialty status, ED triage systems and systems for customer service. More than 50% reported EM residency training programs, EM journals and EP ability to perform rapid sequence intubation (RSI). 50% reported EP ability to perform thrombolysis for acute MI and 33% reported EP ultrasonography. 92% felt that a lack of funding posed a moderate or great obstacle to the future development of EM in their countries. Conclusions : Many essential systems of EM now exist throughout Asia. In the systems of administration and emergency medical information in many countries, there are some parts to be developed further.