기후변화에 대응한 호주의 물관리 정책과 시사점

이종욱,박태선,이승연,이승오,Lee, Jong Wook,Park, Tae Sun,Lee, Seung Yeon,Lee, Seung Oh 한국방재안전학회 2020 한국방재안전학회 논문집 Vol.13 No.4

최근까지 무분별한 수자원 개발과 심각해지는 기후변화로 인한 극심한 가뭄이 지속되면서 물관리 문제에 대해서 관심이 급증하였다. 국내와 유사한 환경 아래 국가 차원에서 일관되고 친환경적이며 체계적으로 관리를 하고 있는 호주의 정책에 대한 분석과 사례검토가 필요하다. 호주는 강우량이 작고 건조하여 가뭄과 홍수가 반복되는 수자원적 특징을 가지고 있으며 1890년대부터 이민자 정착으로 물분쟁이 시작되었다. 일찍이 수자원의 효율적인 분배를 위한 물관리 협약, 물 사용량 규제 프로그램, 연방물법 제정 등이 이루어졌고 현재는 개발과 보전이 균형적으로 이루어지는 물관리 체계를 이루고 있다. 한편 우리나라는 과거 수질은 환경부, 수량은 국토부가 담당하여 물관리의 주무부처가 이분화되어 업무의 중복, 과도한 투자, 비효율 등의 문제로 통합적인 물관리가 어려웠다. 이를 해결하고자 2018년에는 물관련 기본법을 제정하는 등 물관리 기능이 일원화되면서 유역 단위 통합물관리 체계의 기틀이 마련되었고 2019년부터는 유역 단위의 통합물관리 체계를 수행하는 등 통합물관리를 바탕으로 지속 가능한 수자원 관리 효과를 도모하고 있다. 효율적이고 친환경적인 물관리를 위한 관리 정책 수립을 위해 여러 방안으로 강구해온 호주의 IWRM (Integrated Water Resource Management)와 우리나라의 현황과 사례를 비교해보았고 앞으로 나아가야 할 우리나라의 시사점을 제시하였다. Recently, as the extreme drought continued due to the reckless development and the dramatical climate change, national concern about the water management issues has been increased rapidly around the world, especially in Korea. Meanwhile, it is necessary to analyze and review the related cases in Australia, where they have developed the consistently, eco-friendly and systematically management from the national level, which is similar to that of Korea in difficult circumstances. Australia has been suffered by repeated droughts and floods due to low rainfall and dryness, and water disputes were begun with immigrant settlement in the 1890s. In the early days, water management agreements for efficient distribution of water resources, water use regulation programs, and federal water laws were enacted, and now the established water management system in which development and conservation are assumed to be well balanced. In Korea, however, in the past, the Ministry of Environment was responsible for water quality issues while the quantity was managed by the Ministry of Land, Infrastructure and Transport, and the main local departments for water management were divided. Therefore, it was difficult to manage the integrated water management due to problems such as duplicated works, excessive investments, and inefficiency. To resolve this situation, in 2018, all water management functions were unified, such as enacting the fundamental water-related laws, thereby laying the foundation for the integrated water management system for each basin. From 2019, even the integrated water management system was implemented, we are promoting the effect of sustainable water resource management. In order to establish a management policy for efficient and eco-friendly water management, the IWRM (Integrated Water Resource Management) of Australia, which has been devised in various ways, was analyzed and compared with the present situations and cases occurred in Korea, and the implications from this study would be suggested the future of IWRM in Korea.

지각(枳穀) 약침이 고지방 식이 급여 흰쥐의 혈액 내 지질구성과 $TNF-{\alpha}$ 및 IL-6농도에 미치는 영향

이종욱,이지향,이은,이준무,Lee, Jong-Wook,Lee, Ji-Hyang,Lee, Eun,Lee, Joon-Moo 경락경혈학회 2006 Korean Journal of Acupuncture Vol.23 No.1

Objective : To investigate the effects of Poncirus trifoliata Pharmacopuncture on lowering lipid and contents of serum tumor necrosis $factor-{\alpha}$ $(TNF-{\alpha})$ and interleukin-6 (IL-6) in hyperlipidemic rats. Methods : Triglyceride, total cholesterol, $TNF-{\alpha}$, and IL-6 levels in Poncirus trifoliata Pharmacopuncture groups were compared with those in the control group. Results : Concentration of triglyceride and total cholesterol in plasma was decreased in the Poncirus trifoliata Pharmacopuncture groups. In Poncirus trifoliata Pharmacopuncre groups, plasma LDL-cholesterol showed a lower value and HDL-cholesterol showed a higher value than those of the control group. Contents of $TNF-{\alpha}$ was decreased in the Poncirus trifoliata Pharmacopuncture groups. Contents of IL-6, however, were not significantly different. Conclusions : The results suggest that Poncirus trifoliata Pharmacopuncture may have an impact on lipid metabolism to potentially prevent development of diabetes mellitus and accompanying cerebrovascular diseases.

상부 180도 및 하부 180도 선택적 레이저 섬유주성형술의 효과 및 안정성 비교

이종욱,김은주,이태윤,이규원,Jong Wook Lee,MD,Eun Joo Kim,MD,Tae Yoon Lee,MD,Kyoo Won Lee,MD 대한안과학회 2012 대한안과학회지 Vol.53 No.11

Purpose: To compare the intraocular pressure (IOP)-lowering effect and safety between superior 180 degree and inferior 180 degree selective laser trabeculoplasty (SLT). Methods: Forty patients with primary open-angle glaucoma and normal tension glaucoma were treated with superior 180-degree SLT, and 28 patients with the same diagnosis were treated with inferior 180-degree SLT. IOP was checked at 1 day, and 1, 2, 3, and 6 months after SLT. Anterior chamber reaction and ocular pain was evaluated at postoperative 1 day. Peripheral anterior synechia was examined at 6 months postoperatively. Results: At the postoperative 6-month follow-up, the superior treatment group had a mean IOP of 15.53 ± 3.49 mm Hg with a mean reduction of 24.6%, while the inferior treatment group had a mean IOP of 17.18 ± 3.29 mm Hg with a mean reduction of 21.9%. There were no significant differences in IOP reduction between the 2 groups. There was a slightly higher anterior chamber reaction rate in the inferior treatment group. Conclusions: The site of SLT application is not important for IOP reduction. Both superior 180 degree and inferior 180 degree SLT are safe and effective procedures for glaucoma treatment because of successful IOP reduction and low complication risks.

재발성군날개 치료에 있어 항혈관내피성장인자 항체 베바시주맙을 적용한 임상효과

이종욱,박영정,김인택,이규원,Jong Wook Lee,Young Jeung Park,In Taek Kim,Kyoo Won Lee 대한안과학회 2008 대한안과학회지 Vol.49 No.12

Purpose: To clinically establish the effectiveness and safety of bevacizumab on recurrent pterygium. Methods: Twenty patients with recurrent pterygium were given a subconjunctival injection of 0.3 cc bevacizumab, and were evaluated for periodic clinical results at 1 week, 2 weeks, 4 weeks, and every month thereafter. The patients were also evaluated for clinical results and complications. Results: Of recurrent pterygium patients with bevacizumab injection, the conjunctival injection decreased maximally after 1 to 2 weeks, but significantly increased at 4 weeks (above the lowest level measured at 1 to 2 weeks), and no patient presented conjunctival injection above the pre-injection level at 3 months, except in 2 cases. Two weeks after the injection, ICG anterior segment angiography revealed a significant decrease (30.14+17.69%) in vessel thickness of the pterygium 2 weeks after the bevacizumab injection compared to before the injection. There had been no cases of progression of pterygium, and no ocular or systemic complications due to bevacizumab. Conclusions: As shown above in the results, subconjunctival injection of 0.3 cc bevacizumab decreased the conjunctival injection and effectively suppressed any further progression of pterygium. Thus, bevacizumab subconjunctival injection appears to be effective in recurrent pterygium treatment instead of surgical methods.

눈꺼풀속말림이 동반된 두줄속눈썹이나 속눈썹증의 치료

이종욱,신동수,이규원,Jong Wook Lee,Dong Su Shin,Kyoo Won Lee 대한안과학회 2007 대한안과학회지 Vol.48 No.10

Purpose: To evaluate the clinical efficacy of a reverse eyelid splitting technique that we performed in cases of trichiasis or distichiasis combined with entropion. Methods: The study comprised 43 eyes of 31 patients with trichiasis or distichiasis combined with entropion treated from November 2004 to December 2005. After skin incision, the muscular layer and tarsus were reversely dissected to find abnormal follicles. The abnormal hair follicle was cauterized under the muscular layer, and 23 rotating sutures were done with Ethilon 6-0 to fix the tarsus and skin. Success was defined as having the meibomian gland located in front of the junction of skin and mucosa, without an abnormal hair protruding into the eye for at least three months. Results: Fifteen patients were male and sixteen patients were female. The mean age was 62.115.2 years. The patients were followed up for an average of 12.42.0 months after surgery. Surgery was successful in 74.4% (32 of the 43 eyelids) of the cases, and the recurrence rate was 25.6% (11 of the 43 eyelids). No severe complications occurred, such as infection, hemorrhage, wound dehiscence, or granuloma. However, foreign body sensation (1 eye) and eyelid notch (l eye) did occur. Conclusions: This reverse eyelid splitting technique produced satisfactory results in both cosmetic and functional aspects. Moreover, it resulted in a low recurrence rate and low complication rate in patients with trichiasis or distichiasis combined with entropion.

Co계 자성합금 나노와이어의 특성에 영향을 미치는 전기화학적 변수

이종욱,박호동,이관희,김긍호,정원용,Lee, Jong-Wook,Park, Ho-Dong,Lee, Kwan-Hyi,Kim, Gyeung-Ho,Jeung, Won-Young 한국전기화학회 2005 한국전기화학회지 Vol.8 No.3

본 연구에서는 고순도 알루미늄 호일$(t=300{\mu}m)$양극산화 공정을 통해 AAO 나노템플레이트를 자체 제조하였고, 이렇게 제조된 형틀을 가지고 교류 나노전주법에 의해 경자성 합금인 CoP와 연자성 합금인 CoFe를 나노와이어로 제조하였다. 대표적인 Co계 자성합금인 CoP와 CoFe나노와이어는 각기 독특한 자기적 성질을 나타내었다. 경자성 CoP 합금 나노와이어의 경우 교류 인가전압에 따라 hcp와 fcc가 혼재된 구조가 형성되어 자기적 특성에 영향을 미쳤다. 또한 높은 포화자화 값을 갖는 CoFe연자성 합금 나노와이어는 박막 도금 시와는 달리 이상합금도금현상이 거의 나타나지 않았으며 $Co_{30}Fe_{70}$에서 가장 좋은 238emu/g의 포화자화 값을 나타내었다. We have investigated the electrochemical factors affecting the magnetic properties of hard magnetic CoP nanowires and soft magnetic CoFe nanowires fabricated by ac electrodeposition into self-made AAO(anodic aluminum oxide) nano-templates. AAO template having nano scale pores of high aspect ratio has been prepared through 2-step anodizing of aluminum foil in sulfuric acid. Hard Magnetic properties of CoP nanowires were highly conditional on the applied ac potential which could be a decisive factor to make CoP nanowires made up of either pure hcp crystals or a mixture of hop crystals and fcc crystals. On the contrary to CoFe films, there was no anomalous codeposition in the electrodeposition of soft magnetic CoFe nanowires which exhibited their best saturation magnetization of 238 emu/g at the composition of $Co_{30}Fe_{70}$.

Metamorphic HEMT를 이 용한 60 GHz 대역 고출력 Push-Push 발진기

이종욱,Lee Jong-Wook 한국전자파학회 2006 한국전자파학회논문지 Vol.17 No.7

본 논문에서는 $0.12{\mu}m$ 게이트 전극을 가진 metamorphic InAIAs/InGaAs high electron-mobility transistors (mHEMT)를 이용하여 제작된 60 GHz push-push 발진기의 특성을 고찰하였다. 전극 길이가 $0.12{\mu}m$ 인 mHEMT는 700 mA/mm의 최대 전류, 600 mS/mm의 최대 전달정수, 170 GHz $f_T$, 그리고 300 GHz 이상의 $f_{MAX}$ 등 우수한 특성을 나타내었다. 두 개의 $6{\times}50{\mu}m$ 크기를 가지는 mHEMT 를 이용하여 제작된 발진기는 59.5 GHz 에서 6.3 dBm의 출력 전력과 -35 dBc 이상의 기저 주파수 억압도를 나타내었다. 페이즈 노이즈 (phase noise)는 발진 주파수의 1 MHz 오프셋에서 -81.2 dBc/Hz 의 특성을 나타내었다. 본 연구 결과는 60 GHz 대역에서 mHEMT를 이용하여 제작된 push-push 발진기로는 최대 출력을 나타낸 결과이며, 이 연구 결과는 상용화와 저가격에 InP HEMT 보다 유리한 mHEMT를 이용하여 고출력 발진기 특성을 얻을 수 있음을 보여준다. This paper reports a high power 60 GHz push-push oscillator fabricated using $0.12{\mu}m$ metamorphic high electron-mobility transistors(mHEMTs). The devices with a $0.12{\mu}m$ gate-length exhibited good DC and RF characteristics such as a maximum drain current of 700 mA/mm, a peak gm of 660 mS/mm, an $f_T$ of 170 GHz, and an $f_{MAX}$ of more than 300 GHz. By combining two sub-oscillators having $6{\times}50{\mu}m$ periphery mHEMT, the push-push oscillator achieved a 6.3 dBm of output power at 59.5 GHz with more than - 35 dBc fundamental suppression. The phase noise of - 81.5 dBc/Hz at 1 MHz offset was measured. This is one of the highest output power obtained using mHEMT technology without buffer amplifier, and demonstrates the potential of mHEMT technology for cost effective millimeter-wave commercial applications.

원발성 콩다래끼 환자에서 병소 내 트리암시놀론 주사요법과 절개배농술의 치료 효과 비교

이종욱,김성진,Jong Wook Lee,Sung Jin Kim 대한안과학회 2013 대한안과학회지 Vol.54 No.10

Purpose: To evaluate the effectiveness of intralesional triamcinolone acetonide injection, and incision and curettage for primary chalazia. Methods: In order to compare the effectiveness of treatment modality, 103 patients who were diagnosed with primary chalazia were divided into 2 groups. The patients in group A underwent intralesional triamcinolone acetonide injection and the patients in group B underwent incision and curettage. The patients were followed up 1 week and 3 weeks after the procedures to identify the regression of the lesion and the procedure complications. A decision regarding success or failure was made at 3 and 6 weeks after the treatment. Successful treatment was defined as the infallibility in the functional and esthetic aspects as well as the size of regressed lesion. Results: This study included 82 out of 103 patients, who satisfied the inclusion criteria. Forty-four patients underwent intralesional triamcinolone acetonide injection and the remaining 38 patients underwent incision and curettage. The success rate of the initial treatment, which was identified 3 weeks after the procedure, was 81.8% in group A and 86.8% in group B. The cumulative success rate of treatment after 6 weeks was 86.8% in group A and 92.1% in group B. No complications were observed with both treatment modalities. Conclusions: Intralesional triamcinolone acetonide injection is as effective and safe as incision and curettage for the treatment of primary chalazia.

백내장 수술 중 전방으로 관류된 증류수에 의한 각막부종 2예

이종욱,이호영,김성진,Jong Wook Lee,MD,Hoyoung Lee,MD,Sung Jin Kim,MD 대한안과학회 2011 대한안과학회지 Vol.52 No.4

Purpose: To report two cases of toxic corneal reaction induced by infusion of distilled water into anterior chamber during cataract surgery. Case summary: The first case was a 60-year-old female who was inadvertently infused with distilled water for 20 minutes during phacoemulsification in place of balanced salt solution (BSS). The second case was a 70-year-old male who received anterior chamber irrigation with distilled water for approximately 1 minute then and then immediately irrigated with BSS as soon as the mistake was identified. In both cases, topical 1% prednisolone acetate and 5% NaCl solution was immediately administered every hour as well as oral prednisolone at 1 mg/kg for one week after which the dose was slowly tapered. The first case completely returned to normal after 3 months, whereas the second case only requied 1 month to return to pre-surgery conditions. Conclusions: Patients who were exposed to distilled water within the anterior chamber resulted in corneal endothelial damage and corneal edema proportionate to the amount irrigated. However, The corneal edema gradually healed with treatment and eventually regained translucency without complications, completely. J Korean Ophthalmol Soc 2011;52(4):483-486

소안구증 환자에서 piggyback 방법을 이용한 백내장 수술

이종욱,최원석,박영정,이규원.Jong Wook Lee. MD. Won Suk Choi. MD. Young Jeung Park. MD. PhD. Kyoo Won Lee. MD. PhD 대한안과학회 2010 대한안과학회지 Vol.51 No.7

Purpose: To report a case of cataract surgery using a piggyback method in a patient with pure nanophthalmos with an axial length under 16.00 mm in both eyes. Case summary: The authors performed cataract surgery using a piggyback method inserting two intraocular lenses (IOLs) in a 44-year-old male with nanophthalmos with axial lengths of OD 15.36 mm, and OS 15.59 mm. Primary implantation of two IOLs of +53.0D as calculated by the SRK/T and Holladay formula was performed in the right eye using a piggyback method. In the left eye, two IOLs of +60.0D calculated by the Hoffer Q formula were implanted. Postoperative hyperopic refractive errors occurred in both eyes. The differences between the preoperative target spherical equivalent (SE) and the postoperative one year four month SE were 9.68D in the right eye and 1.63D in the left eye. Conclusions: Due to high diopter IOL requirements in nanophthalmic patients (less than 16.00 mm) during cataract surgery, the refractive errors were well corrected, without complications, by using a piggyback method. In the present case study, the Hoffer Q formula produced better results than did the SRK/T or Holladay formula in reducing the difference in preoperative and postoperative SEs, but more surgical cases and research are required to establish the most appropriate formula for cataract surgery in nanophthalmos.