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전병희 ( Byong Hee Jun ),김도환 ( Do Hwan Kim ),최은희 ( Eun Hee Choi ),김성신 ( Sung Shin Kim ),김창원 ( Chang Won Kim ),배현 ( Hyeon Bae ) 한국물환경학회 2002 한국물환경학회지 Vol.18 No.5
A pilot scale SBR (working volume, 20㎥) treating piggery wastewater was operated with real wastewater. The operation mode of intermittent feeding of raw water and sub-cycle with repeating anoxic-aeration conditions were adapted to avoid the high-strength nitrogen inhibition. In sub-cycle, aeration time for nitrification was tried to be controled with ORP and/or DO meter. The characteristics of control was somewhat different between ORP and DO. DO showed potential ability to detect complete ammonia oxidation point by the first order differential values or absolute value. Especially, DO was proved to be useful for high loading rates. ORP indicated the ending point of nitrification by the plateau appearing after bending point. Because ORP can be utilized as a diagnosis tool by its good sensitivity for the microbial condition in reactor, the simultaneous application of DO and ORP was recommended for the stable control of SBR.
만성 견비통에 대한 동씨침 치료의 무작위 대조군의 임상 연구
김찬영,권나현,신예지,남동우,김건형,김종인,최도영,이윤호,이재동 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2007 東西醫學硏究所 論文集 Vol.2007 No.-
Objectives : To observe the effect of acupuncture treatment in chronic shoulder pain patients. Methods : 36 voluntary patients were randomly assigned to an acupuncture treatment group(E GrouP, n=18) and a control group(C GrouP, n=18). The E Group patients received acupuncture treatment on LI_(15), TE_(14), GB_(21) and Master Dong's acupuncture points, Shin-gwan and Gyun-joong, twice a week for four weeks. The C Group patients received no treatment. All patients in both groups were instructed to practise self exercise in their daily lives. Evaluations were made at baseline and after four weeks of study. The Constant Shoulder Assessment(CSA), Shoulder Pain and Disability Index(SPADI) and the patient's subjective pain was measured by Visual Analogue Scale(VAS). The obtained data was analyzed. Results '. The E Group showed significant(p<0.05) improvement in CSA, SPADI and VAS after four weeks of treatment. The C Group showed significant(p<0.05) improvement in CSA, but the change of SPADI and VAS was insignificant(P>0.05). CSA and SPADI of E Group significantly(p<0.05) improved compared to the C GrouP, but the difference of VAS change in the two groups was insignificant(p>0.05). Conclusions : Four weeks of acupuncture treatment significantly improved CSA, SPADI and VAS. The improvement of CSA and SPADI was significant(p<0.05) compared to untreated patients.
金道鉉,申宰浩 명지대학교 1983 明大論文集 Vol.14 No.-
Dual-Slope型 A/D轉換方式은 線型性 및 分解度외의 여러면에서 많은 長點을 갖고 있지만, 變換速度가 늦다는 큰 短點을 갖고 있다. 本 論文에서는 技術的인 면에서 轉換速度의 增加 또는 標本速度의 增加를 實現할 수 있는 점을 提示하고 分析한다. Though the dual-slope type A/D conversion method has many advantages: such as good differential-linearity, excellent linearity, easy to autozero, wide dynamic range & resolution independent of many component variations and independent of clock rate, this method has the serious disadvantage which is slow conversion speed. On the view of technology, this paper shows and analyzes the point which is the increment of conversion speed or sampling rate.
우리나라의 철강산업에서 대기오염의 관리 및 방지현황에 관한 연구
김동술,김신도,유정석 경희대학교 환경연구소 1994 環境硏究 論文集 Vol.5 No.-
국가 경제발전에 크게 기여하고 있는 철강산업은 에너지를 과소비하며, 폐기물을 대량 발생하는 공해 유발업종이기도 하다. 1970년 이후 철강산업은 지속적인 산업발전을 위하여, 생산설비의 확장과 함께, 대기의 질을 개선시키기 위하여 방지설비에도 많은 비용을 투자하였다. 대부분 산업체의 경우처럼, 국내 철강산업 역시 개발과 환경보존과의 조화라는 어려움을 가지고 있었으며, 각종 대기환경정책의 변화에도 적극적으로 대처하고 있다. 본 연구는 철강산업의 국가 경제발전에 주요 공헌산업으로서의 역할을 계속 유지하며, 철강산업이 국내 환경개선에도 선도적인 역할을 수행할 수 있도록, 우리실정에 적합한 대기오염 배출규제의 방향을 제시하고자 하였다. 이를 위해, 본 연구는 철강산업의 환경현황과 문제점, 대기오염 방지시설의 현황과 처리에 대한 경제성 등을 연구조사하였으며, 우리나라 대기환경규제의 비합리성을 지적하였다.
퍼지 제어기 소속함수의 추정을 위한 진화프로그래밍 이용에 관한 연구
김승철,장종승,강신출,임영도 東亞大學校 附設 情報通信硏究所 1996 情報通信硏究所論文誌 Vol.4 No.1
On this paper, the design of fuzzy adaptive controller using an evolution programming combining fuzzy controller to be very effectove in the optimization problem will be proposed. On a proposing control structure, the optimization takes uncertain plants optimized membership function using EP, and we want to take an adaptive controller in the plant as well be adapted control structure to initiate approximate membership function in fuzzy. We show that proposed controller have a good performance than general fuzzy controller through a computer simulation and the real-time control of DC serve motor.
김도태,장중걸,한신식 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-
Pneumatic cushion cylinders are most widely used as actuators in automatic equipment because they are relatively inexpensive, simple to install and maintain, offer robust design and operation, are available in a wide range of standard sizes and design alternatives. Compressed air is a very expensive form of energy and therefore systems have been proposed to conserve pneumatic energy which mostly means lowering the supply pressure. The purpose of this paper is to compare meter-out and meter-in speed control of high speed pneumatic cushion cylinder. A mathematical simulation model of a double acting pneumatic cushion cylinder used the relief valve type is presented. The dynamic characteristics in the horizontally-mounted pneumatic cylinder, the meter-out and meter-in speed control are investigated with variation of the supply pressure, total mass, effective area of flow control valve, cracking pressure of relief valve, piston rod diameter, stroke, cushion sleeve length etc.
포진후 통증환자에 대한 신경차단술의 효능 : 예비적 보고
신규만,조도상,조용재,김명현,김상진,김성학 이화여자대학교 의과대학 2005 EMJ (Ewha medical journal) Vol.28 No.1
Objectives : Of all the chronic pain syndromes postherpetic neuralgia ranks the most refractory to treatment. The eight postherpetic neuralgia patients have been treated with nerve blocks or neurolysis and obtained good result. We evaluate the therapeutic effect of nerve blocks for postherpetic neuralgia and reviewed the pathology, clinical consideration, treatments and prevention. Materials and Methods : Eight patients with established postherpetic neuralgia enrolled in pain clinic of Mokdong Hospital of Ewha Womans University from March,2004 to December. Average age at 58 and about 63% of patients were over 68 years. Affected area of forehead was two patients. They have been treated with stellate ganglion block (SCB), two times supraorbital and supratrochlear nerves blocks and neurolysis with absolute alcohol. Face affected patient has was one and has been treated with 5 times SGB, 2 times supraorbital and supratrochlear nerves blocks, infraorbital and mental nerves blocks, and then 2times maxillary and mandibular nerves blocks. Chest affected two patients were treated with intercostal nerve blocks. Thoracic wall affected one patient received 2 times thoracic epidural blocks and thoracic nerve block. Scapalur and thoracic wall affected patient has been treated with SGB and 2 times thoracic epidural block. The chest and thoracic wall affected patient received 10 times intercostal blocks,2 times thoracic epidural blocks,3 times thoracic root block and neurolysis of intercostal nerves with absolute alcohol. The injected agents were 1% mepibacaine or 0.25% mercain heavy and methylprednisolone succinated, and at weekly intervals the agents were injected. Results : All patient having been treated with nerve blocks were free of pain at 3-9 months. Conclusion : Although no controlled trial has been done of nerve blocks to treat postherpetic neuralgia, this technique is safe in experienced hands and, if effected, may be repeated. It suggested that local anesthetics and steroid are the effective components in nerve blocks. Data on the relief of acute pain with nerve blocks, however cannot be extrapolated to predict the prevention of postherpetic neuralgia. The best way to prevent herpes zoster becasuse of post herpetic neuralgia is so difficult to treat.