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박동식,남희승,정현오,이상억,김동현 대한재활의학회 2009 Annals of Rehabilitation Medicine Vol.33 No.4
Objective: To evaluate the usefulness of infrared thermography in the diagnosis of unilateral carpal tunnel syndrome (CTS). Method: Thirty six patients confirmed electrodiagnostically as CTS and fifteen adults with normal electrodiagnostic study were included in this study. For the thermographic diagnosis, we measured the skin temperature of the palmar area of all 5 fingers, thenar area, hypothenar area and volar area of forearm bilaterally. We compared the interside peak temperature difference between median nerve innervated area and noninnervated area in three different groups (normal control, mild CTS and moderate to severe CTS groups). Results: Thermography of the CTS patients showed significant temperature differences in more than one area of the median vasomotor nerve territory, and no significant temperature difference in all the areas that were not innervated by the median vasomotor nerve. When we considered interside temperature differences of more than 0.3°C as abnormal findings, the sensitivity of thermography was 2.7% and the specificity was 86.6%. With more than 0.6°C as abnormal, the sensitivity was 25% and the specificity was 66.6%. With more than 1.0°C, the sensitivity was 8.3% and the specificity was 73.3%. There was no significant interside peak temperature difference in all groups. Conclusion: This study suggests that infrared thermography has low sensitivity and specificity, which implies that it is not useful for the diagnosis of CTS.
박동식,Park, Dong-Sik 사단법인 한국당뇨협회 2008 당뇨 Vol.219 No.--
당뇨병환자에게 빼놓을 수 없는 치료법 중 하나가 바로 운동요법이다. 당뇨대란이 예상되고 있는 현 시점에서 운동은 당뇨 및 기타 질환으로부터의 한 예방법으로 떠오르고 있고, 그만큼 중요하다. 그러나 막상 운동을 시작하자니 무엇부터 해야 할지 막막해 무조건 헬스장을 등록하거나 무리한 운동으로 진통을 겪곤 한다. 당뇨인 뿐만 아니라 현대인의 건강 필수품이 된 운동, 어떻게 하면 나에게 꼭 맞는 운동을 할 수 있는지 알아보자.
Benfuresate 와 Oxolinic Acid 의 작물제중 잔류량 평가
박동식,양재의,한대성 ( Dong Sik Park,Jae E . Yang,Dae Sung Han ) 한국환경농학회 1995 한국환경농학회지 Vol.14 No.3
Residues of benfuresate in rice and oxolinic acid in Chinese cabbage were determined through the field experiments in order to establish the safe use and the maximum residue limit(MRL) of these pesticides in Korea. The herbicide benfuresate powder was sprayed into the paddy field with a level of 0.6㎏(active ingredient)/㏊ and rice (Oryza sativa L.) was grown. At harvest, residues of benfuresate in brown rice and stem were analyzed using gas chromatograph. The residue of oxolinic acid in Chinese cabbage (Brassica campestris subsp. napus var pekinesis MAKINO) was analyzed using HPLC after foliar-spraying this fungicide into the cabbages at a level of 15㎏/㏊. The recovery efficiencies of benfuresate and oxolinic acid were 87-89% and 90-95%, respectively. The respective residues of benfuresate in rice and oxolinic acid in Chinese cabbage were in the range of 0.27-0.46 ㎎/㎏ and 0.23-1.53㎏/㎏. Residual concentrations of these pesticides in crops increased with the increased application frequencies, followed the first-order kinetics and linearly decreased with time. The highest residue of 1.53 ㎎/㎏ of oxolinic acid was observed when this fungicide was sprayed six times until three days prior to harvest, but this level was far lower t㏊n 5 ㎎/㎏, which is the maximum residue limit(MRL) set by FAO/WHO.
선 출원 특허와 후 출원된 특허 간의 기술 분석 - 날개 없는 헤어드라이어를 중심으로
박동식 한국특허학회 2016 특허학연구 : 한국특허학회지 Vol.17 No.1
새로운 기술을 적용한 제품이 나오면 이와 유사한 특허 출원이 증가하고 이를 갖고 영업을 하다가 결 국 특허 소송 등으로 연결되게 된다. 혹은 많은 기업들이 경쟁사 제품을 분석하여 새로운 특허를 출원 하는 과정에서 선 출원된 특허의 기술을 많은 부분 복사하게 되고 결국은 원 출원 특허 보다 우수한 제 품이 나와 기 출원된 기술이 사장되는 경우가 비일비재하다. 본 논문에서는 이러한 케이스 중의 하나인 날개 없는 헤어드라이어에 관해 고찰하고자 한다. 날개 없는 선풍기를 세계 최초로 개발한 다이슨이 최 근 날개 없는 헤어드라이어 특허를 출원 하고 상품을 출시하였다. 그러나 이보다 앞서 한국에서 날개 없는 헤어드라이어가 선 출원되어 등록되어있다. 본 논문에서는 이들 특허간의 기술성을 살펴보고 기술 성의 진보성이 있는지 그리고 특허성이 성립하는지 검토하려 한다. A product applied new technology releases, simultaneously similar patents using the technology increase and some businesses connect with them will be facing a litigation. On the other hand, many companies are analyzing competitors' products and copying them while inventing a new technology or product, this can make bury original tech by so doing inventing a similar and new tech. There are one case related no fan hair dryer which one of the cases. Dyson the company that invents the fanless fan make a fanless hair dryer patent and product. But, formerly, the other company in korea already have the patent about a fanless hair dryer. So this study evaluates worth of the technologies and patents two companies had invented.