• 동의생리병리학회지
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• 제16권1호
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• pp.32-44
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• 2002

Gu-Chang is a disorder characterized by recurring ulcers confined to the oral mucosa. Despite much clinical and research attention, the causes remain poorly understood. In this paper, we will compare Gu-Chang with Recurrent Aphthous Stomatitis(RAS) in order to know what is the similiarity between Gu-Chang and RAS. So we will arrange various oriental and western medical literatures which are important. As a result of arrangement of the causes, symptoms and therapys of Gu-Chang, we can conclude through the studies as follows. 1. The etiologies of Gu-chang are following. In the Sthenia syndrome, there are evil heat of external factor, heat of heart and spleen, insomnia, heat of upper warmer, stress and diet, heat of lung and heart, excessive heat of upper warmer, inappropriate food intake, heat conveyance of organ, heat of stomach merdian, moistured heat of spleen and stomach and stasis of liver energy. In the Asthenia syndrome, there are deficiency of stomach energy, deficiency of upper warmer leading to heat, deficiency of middle warmer leading to cold, deficiency of lower warmer leading to heat, deficiency of middle energy, deficiency of blood, decreased fire and deficiency of soil, yin fire of lower warmer, deficiency of heart yin, deficiency of spleen yin and deficiency of qi and blood. 2. In western medicine the causes of RAS is presumed as local, microbial, systemic, nutritional, genetic, immunologic factors. 3. Once Gu-chang is compared with RAS, in the deficiency of yin leading to hyperactivity of fire, deficiency of yin leading to floating of fire and stasis of liver energy, recurring of Gu-chang is similar to RAS. Although recurring of Gu-chang due to tripple warmer of excessive fire has no recurrance, since there are the degree of Pain, site of lesion, dysphagia etc, it is similar to major RAS. It is may be believed that Sthenia Gu-chang is similar to major RAS, shape of recurring, site of lesion, degrree of Pain and white color of Asthenia Gu-chang are similar to minor RAS, but there is no similarity concerning herpes RAS in the literatures that describe the symptoms. 4. Generally, the treatment of Gu-chang is divided into Asthenia and Sthenia Syndrome. The method of cure to Sthenia syndrome is heat cleaning and purge fire, Asthenia syndrome is nourish yin to lower and adverse rising energy and strength the middle warmer and benefit vital energy. 5. Following is the medication for Sthenia syndrome. Heat of heart and spleen is Do Jok San, Yang Gyek San, Juk Yup Suk Go Tang, evil heat of external factor is Yang Gyek San Ga Gam, Stasis of liver energy is Chong Wi Fae Dok Yum, moistured heat of spleen and stomach is Chong Gi Sam Syep Tang. The medication for Asthenia Syndrome is following. Deficiency of upper warmer leading to heat is Bo Jung Ik Gi Tang, deficiency of middle warmer leading to cold is Bu Ja Lee Jung Tang, deficiency of lower warmer leading to heat is Yuk Mi Ji Hwang Tang, deficiency of yin leading to hyperactivity of fire is Ji Baek Ji Hwang Hwan, deficiency of yin leading to floating of fire is Lee Jung Tang Ga Bu Ja Medicine for external use were Yang Suk San, Boo Wyen San, Rok Po San, Yoo Hwa San ate. 6. In western medicine, there is no specific treatment for RAS, and management strategies depend on dinical presentation and symptoms and includes antibiotics, oral rinses, glucocorticoids, immunomodulatory drugs, vitamines, analgesics, laser and antiviral agents.

• 대한한의학원전학회지
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• 제6권
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• pp.89-130
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• 1993

Huh-joon's medical thoughts shown on his medical book of the Doog-Eui-Bo-Kham can be summerized as follows. 1. The general trend of medical science in Koryo dynasty is that much more interests were concentrated upon the books about curative means rather than upon the books about theoretical knowledge of medical science. With the development of Hyang Yak(鄕樂) (the term referring either various kinds of domestic medical stuffs such as herbs or the curative methods using those stuffs) and the writing of books on Hyang Yak, independent medical science of the nation's own was established in late Koryo dynasty. And the national medical science was continuously further developed until early Choson dynasty. Briskly-expanded mutual exchanges with China in early Choson dynasty provided Choson opportunities to import Chinese medical science and to examine it. Under this circumstances, he wrote the Dong-Eui-Bo-Kham. 2. As we look over the preface and Chip-Rae-Muo(集例文), we can find the characterstic of Doog-Eui-Bo-Kham is that the philosophical theory of Taoism was quoted in explaining the principles of his medical science and that the main idea of Naekyuog is the basis in explaining the way of curing diseases. 3. 83 kinds of medical books were quoted in the Doog-Eui-Bo-Kham. Besides, as many as 200 kinds of books including Tao-tzu's teaching books(道書), history books(史書), almanac(曆書), and Confucius' teaching books(儒家書籍) were quoted in total. Naekyuog and Eue-Hak-Ip-Mun, Dan-Kye-Sim-Bup were the most frequently quoted books among them. 4. Huh-Joon's medical thoughts about health care were like these. 1) The reason why Huh-Joon regarded the idea of health care as of great importance was that he laid much more emphasises on the preventive medicines rather than on the remedial medicines. The direct reason was that he was greatly influenced by profound knowledge of Taoist's study of discipline and who participated in the editing the books from the beginning. 2) Huh-Joon's outlook on human body started from the theory of "Unity of Heaven and Man"(天人合一論), which implied man was a kind of miniature universe. In addition to that, he largely theory of essence(精), vital force(氣), and spirit(神) which were regarded very important as the three most valuable properties in Taoism. However, he took his medical ground on practical and pragmatic idea that he did not discuss fundamental essence(元精), fundamental vital force(元氣), and fundamental spirit(元神) which were given by Heaven from the received only the theory of essence, vital force, and spirit which were acquired after birth and worked mainly on realistic activity of life. 3) Huh-loon accepted Do-In-Bup(導引法) sharply as a method to prevent and cure diseases. 5. Huh-loon's medical thoughts on remedial aspects are as 1) Naekyung was considered so important in Dong-Eui-Bo-Kham that not only each paragraph was begun with the Quotations from Nackyung but also the edited order of the content of the book the same with that of Naekyung. And differently from the former korean medical books he accepted at large and recorded the theories of the four noted physicians of the Geum-Won era(金元四大家) by Dong-Eui-Bo-Kham. 2) For the first time, Huh-Joon introduced the theory of Un-Ki (運氣論) in the Dong-Eui-Bo-Kahm. However, he accepted it as a pathological function of human body but he did not apply physical constitution, physiological function, pathological function, and remedial methods. 3) Huh-loon liked to use Hyang Yak that he recorded korean name of Hyang Yak(鄕名), places of the production(産地), the time of collecting(採取時月), and the way of drying herbs(陰陽乾正法) in the remedial method of a single medicine prescription for diseases at the end of each paragraph. By doing so, he developed, arranged, and revived Hyang Yak. 4) He believed that since the natural features of China were different from those of Korea the reasons of being attacked with its remedial methods couldn't be the same with different from Chinese medical books which primarily focused on paralysis and the injury of the cold has his own structure in his book that he founded independent science of this nation. He consulted enormous documents He discovered and wrote the theory and therefore concrete methods for diseases so that the book hadthe principles of outbreak of diseases(理), methods of cure(法), prescription(方), and a single medicine prescription(藥) and set system of medical science in a good order. By doing so, he and pragmatic development of medical science.

• 대한한의학원전학회지
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• 제5권
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• pp.151-199
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• 1992

A study on Bang-Yak-Hap-Py$\breve{u}$n, one of the most widely-known Korean medicine books, has been conducted and the findings are as follows:the political and social background at the end of Yi-dynasty amidst the inflow of western civilization and the aggression of foreign forces can be seen as a historical period of trial, when civilization and independence had to be preserved at the same time, during the period, the social trend was to pursue a rapid practical solution rather than a profound theory. Responding to this trend, simple and easy medical science became to prevailand the representative medicine book of this kind was Bang-Yak-Hap-Py$\breve{u}$n. 1. Bang-Yak-Hap-Py$\breve{u}$n was written comprising the characteristics of simple and easy medical science with a view to popularizing-collection of logics, easy readability, medical science in time, etc. 2. Bang Yak-Hap-Py$\breve{u}$n, rich and grand in content, came out of Dong-$\breve{U}$i-Bo-Gam at the right moment as a pragmatic guide book of Korea medical practice symbolizing Korean spirit. 3. Do-yun Whang whose pen name was Hye-Am was born in Changwon, Kyungnam-do as the 18th descendant of Changwon Whang family. He engaged in medical practice in Seoul and wrote and edited Boo-Bang-Py$\breve{u}$n-Ram. $\breve{U}$i-Jong-Son-Ik, $\breve{U}$i-J$\breve{u}$ng-Son-Ik-Bu-Yeo, $\breve{U}$i-Bang-Whan-Tu, ect. and made his son, Pil-Su follow him and let him edit Bang-Yak-Hap-Py$\breve{u}$n, which put $\breve{U}$i-Bang-Whal-Tu and Son-Ik-Bon-Cho together. 4. The construct of Bang-Yak-Hap-Py$\breve{u}$n can be subdivied into three parts: herbs of 34 classes and 514 kinds were arranged on the upper part and $\breve{U}$i-Bang-Whal-Tu was arranged on the middle end lower part. Such arrangement can be very effective in clinics. 5. Bang-Yak-Hap-Py$\breve{u}$n as a curative book of Korean medical science has been a necessary another ego for many Korean medical practioners. It also played a great role of enhancing Korean oriental medical science to be widely used by Koreans. On the other hand, it produced a side effect of emergence of employed medical practioner who lacked in scholastic aptitude. 6. Tens or newly edited Bang-Yak-Hap-Py$\breve{u}$n have been issued. Among them, Jung-Jeong, Bang-Yak-Hap-py$\breve{u}$n, J$\breve{u}$ng-Mak-Bang-Yak-Hap-Py$\breve{u}$n. By$\breve{u}$n-J$\breve{u}$ng-Bang-Yak-Hap-Py$\breve{u}$n, and By$\breve{u}$n-J$\breve{u}$ng-Bang-Yak-Jung-Jeon have been widely known. Lately, Bang-Yak-Hap-Py$\breve{u}$n which includes more symptoms and remedies or is translated into Korean came out in several kinds. 7. The number of korea classical medicinal books quoted in Bang-Yak-Hap-Py$\breve{u}$n is 68, among which Dong-$\breve{U}$i-Bo-Gam Occupies the top in the list enlisting 69 medicinal treatment. This Shows that Dong-$\breve{U}$i-Bo-Gam gave birth to Bang-Yak-Hap-Py$\breve{u}$n.

• Journal of Animal Science and Technology
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• 제55권4호
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• pp.237-247
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• 2013

This study was to examine single or combined in vitro effects of environmental endocrine disruptors on boar sperm characteristics, oxidative stress damage in sperm and development of porcine IVF embryos. Addition of various concentration of NP (10, 20, $30{\mu}M$), DBP (10, 50, $100{\mu}M$) and BPA (1, 5 or $10{\mu}g/ml$) on boar sperm characteristics such as percentages of sperm motility, viability, membrane integrity and mitochondrial activity were dose-dependently decreased within 3, 6 or 9 hr incubation period (p<0.05). The overall detrimental effects increased with incubation time increasement. NP, DBP and BPA showed the detrimental effects on sperm membrane and mitochondria of energy production organelles affecting cell viability with the dependancy of dose and incubation time. In combination effects, NP ($10{\mu}M$) + DBP ($10{\mu}M$) significantly decreased boar general sperm characteristics for 3 or 6 hr incubation period compared with control (p<0.05). When both of NP and DBP concentrations (NP; $30{\mu}M$, DBP; $100{\mu}M$) increase, the detrimental effects on sperm characteristics were larger than those of low concentration combination (p<0.05). The inhibitory effects of NP ($30{\mu}M$) + BPA ($10{\mu}g/ml$) on sperm characteristics were larger than those of NP ($10{\mu}M$) + BPA ($1{\mu}g/ml$) (p<0.05). DBP ($100{\mu}M$) + BPA ($10{\mu}g/ml$) decreased sperm characteristics compared with the low concentration combination (DBP $10{\mu}M$ + BPA $1{\mu}g/ml$, p<0.05). This result indicates the detrimental effects of both chemicals on sperm characteristics were dose dependent. Addition of NP ($30{\mu}M$) + DBP ($100{\mu}M$), NP ($30{\mu}M$) + BPA ($10{\mu}g/ml$), DBP ($10{\mu}M$) + BPA ($1{\mu}g/ml$) or DBP ($100{\mu}M$) + BPA ($10{\mu}g/ml$) significantly increased lipid peroxidation for 3 or 6 hr incubation period (p<0.05) compared with no addition control. NP (${\geq}20{\mu}M$) decreased the percentages of IVF embryo development from morulae and blastocyst stages (p<0.05) and its detrimental effects were dose-dependant. BPA 0, 1, 5 or $10{\mu}g/ml$ decreased significantly and dose-dependently the percentage of morulae plus and blastocysts (p<0.05). Combinations of DBP ($100{\mu}M$) plus NP ($30{\mu}M$) and DBP ($100{\mu}M$) plus BPA ($10{\mu}g/ml$) did not affect on morulae and blastocyst development, but NP ($30{\mu}M$) plus BPA ($10{\mu}g/ml$) has significant detrimental effect on embryo development at these stages (p<0.05). These overall results indicate that the partial detrimental effects on boar sperm characteristics and embryo development by NP, DBP, BPA or the combination of these chemicals might be due to the increasement of lipid peroxidation and free radical formation in the cell and there were no specific interaction effects on boar sperm and embryo degeneration among the combined treatments.

• 농약과학회지
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• 제19권3호
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• pp.204-209
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• 2015

본 연구는 시설재배 아스파라거스를 대상으로 acetamiprid 입상수화제의 잔류특성을 규명하고 그에 따른 안전사용기준 설정의 기초자료를 확보하고자 수행하였다. Acetamiprid의 잔류량은 7-8월 시설재배지의 아스파라거스를 입경 전과 후 상태가 되도록 제작하고 수확 7일전 1회 살포하여 1-2일 간격으로 5회에 거쳐 어린 줄기를 수확한 후 분석하였다. 그 결과, 입경 전과 후 아스파라거스 모두에서 살포당일 acetamiprid의 잔류량은 0.27 mg/kg과 0.14 mg/kg으로 적용되는 최저 잔류허용기준인 0.1 mg/kg 보다 높은 것으로 확인되었으나, 3일이 경과하였을 때는 잔류허용기준 보다 낮은 0.08 mg/kg과 0.03 mg/kg 수준임을 확인할 수 있었다. 그리고 살포 후 5일이 경과하였을 때는 입경 전과 후 아스파라거스 모두에서 본 연구의 acetamiprid 정량한계인 0.02 mg/kg 보다 낮아져 검출이 되지 않았다. 이러한 결과로 미루어볼 때 7-8월 시설재배지의 아스파라거스에서 acetamiprid 반감기는 입경과 무관하게 1-3일 정도로 짧음을 알 수 있었다. 따라서 acetamiprid 입상수화제를 7-8월 시설재배지의 아스파라거스에 수확 7일전에 1회 살포하는 것은 아스파라거스의 농약잔류 안전성에 문제가 되지 않을 것으로 판단하였으며, 본 연구결과는 아스파라거스에 대한 acetamiprid의 안전사용기준을 설정하는데 중요한 기초자료가 될 것으로 사료된다.

• Asian-Australasian Journal of Animal Sciences
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• 제24권6호
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• pp.766-773
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• 2011

The objective of the present study was to examine whether yaks possess any adaptive mechanisms of nitrogen (N) metabolism to survive in the harsh foraging environment of the Qinghai-Tibetan Plateau. A grazing experiment on native alpine meadows was conducted to determine availability of herbage biomass and body weight (BW) change of yaks over the year, followed by two indoor feeding trials to investigate adaptation mechanisms of N metabolism in yaks fed at similar intake level to grazing conditions. Three castrated males of each of three genotypes; yak (Bos grunniens), indigenous cattle (Bos taurus) and their crossbred - cattleyak (Bos taurus male${\times}$Bos grunniens female), were used in the housed trials. Results showed that: i) Monthly herbage biomass production and daily grazing intakes by yaks over the year ranged from 220 to 4,664 kg DM per ha, and 1.90 to 8.50 kg DM, respectively. For about seven months each year, yaks suffer from malnutrition as a result of inadequate pasture conditions; ii) Urinary N excretion and N retention by yaks were significantly affected by feeding level, and yaks had a lower (p<0.05) average daily urinary N excretion (0.39 g/kg $BW^{0.75}$) and a greater (p<0.05) N retention (-0.09 g/kg $BW^{0.75}$) than indigenous cattle (0.47 and -0.16 g/kg $BW^{0.75}$, respectively). Fasting daily urinary N excretion was greater (p<0.05) for indigenous cattle than yaks (353 vs. 248 mg/kg $BW^{0.75}$). Purine derivative N excretion and purine derivative N index (PNI) increased with increasing feeding level, while the value of PNI was greater (p<0.05) for yaks and cattleyak (0.11 and 0.12, respectively) than for indigenous cattle (0.09) during the feeding trials. These results suggest that yaks could rely, in part, on the recycling of N to adapt to the harsh forage environment on the Qinghai-Tibetan Plateau.), were used in the housed trials. Results showed that: i) Monthly herbage biomass production and daily grazing intakes by yaks over the year ranged from 220 to 4,664 kg DM per ha, and 1.90 to 8.50 kg DM, respectively. For about seven months each year, yaks suffer from malnutrition as a result of inadequate pasture conditions; ii) Urinary N excretion and N retention by yaks were significantly affected by feeding level, and yaks had a lower (p<0.05) average daily urinary N excretion (0.39 g/kg $BW^{0.75}$) and a greater (p<0.05) N retention (-0.09 g/kg $BW^{0.75}$) than indigenous cattle (0.47 and -0.16 g/kg $BW^{0.75}$, respectively). Fasting daily urinary N excretion was greater (p<0.05) for indigenous cattle than yaks (353 vs. 248 mg/kg $BW^{0.75}$). Purine derivative N excretion and purine derivative N index (PNI) increased with increasing feeding level, while the value of PNI was greater (p<0.05) for yaks and cattleyak (0.11 and 0.12, respectively) than for indigenous cattle (0.09) during the feeding trials. These results suggest that yaks could rely, in part, on the recycling of N to adapt to the harsh forage environment on the Qinghai-Tibetan Plateau.

• 한국어류학회지
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• 제11권1호
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• pp.94-101
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• 1999

1998년(年) 11월(月)부터 1999년(年) 1월(月)까지 전라남도 여수시 돌산읍 소재의 종묘배양장에서 사육중이던 농어에 황체 자극호르몬-방출호르몬 유사체를 투여하여 인위적으로 채란(採卵)한 난(卵)의 형태와 인공수정(人工受精)한 후 난발생과정(卵發生過程) 및 자치어(仔稚魚)의 성장에 따른 형태변화를 관찰하였다. 농어의 수정란(受精卵) 및 미수정란(米受精卵)은 구형(球形)으로 무색투명하였으며, 수정란(受精卵)의 난경(卵徑) 1.33~1.46 mm (평균 1.38 mm, n=10) 이었고, 유구(油球)는 1~5개를 가지고 있었다. 부화(孵化)에 소요된 시간은 수온 $20.0^{\circ}C$에서 50시간 45분, $18.0^{\circ}C$ 에서 54시간 55분, $16.0^{\circ}C$에서 74시간 15분이 소요되었다. 부화(孵化) 직후(直後)의 자어(仔魚)는 전장(全長)이 3.54~3.69 mm로 입은 열리지 않았으나 항문이 열려있었고, 눈에는 색소포(色素脯)가 연하게 착색(著色)되어 있었다. 부화(孵化) 후(後) 5일(日)째의 자어(仔魚)는 전장(全長)이 4.78~5.24 mm로 난황(卵黃)이 완전히 흡수되어 후기자어기로 이행하였고, 머리 부분이 현격하게 발달하면서 입이 완전하게 열려있으며, 흑색소포(黑色素胞)가 몸의 등쪽과 배쪽에서 증가하였다. 부화(孵化) 후(後) 25일(日)째 자어(仔魚)는 전장(全長)이 7.95~8.32 mm로 꼬리지느러미에 9~12개의 줄기가 출현하였으며, 두경부(頭項部)와 후경부(後頭部)에서 꼬리부분까지 나무가지 모양의 흑색소포(黑色素胞)가 증가하여 나타났다. 부화(孵化) 후(後) 31일(日)째 자어(仔魚)는 전장(全長)이 8.46~9.18 mm로 배색말단(背索末端)이 $45^{\circ}$로 굽어져 있으며, 막상(膜狀)의 지느러미가 분화하여 등지느러미에 8~9개, 뒷지느러미에 7~8개의 줄기가 출현하였고, 꼬리지느러미 줄기는 16~18개로 증가하여 나타났다. 부화(孵化) 후(後) 61일(日)째 개체의 전장(全長)은 16.28~17.31 mm로 모든 지느러미 줄기가 정수 (D. XII, 14; A. II, 10; P. 18; V. 10; C. 20~21)에 달하여 유어기(維魚期)로 이행하였다.

• 분석과학
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• 제16권4호
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• pp.292-298
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• 2003

고급산화공정 (AOP)인 UV시스템과 오존시스템을 이용하여 부식산의 광산화 및 오존 산화를 실시한 후, 용존유기탄소 (DOC)의 제거 효율에 따른 분자량 분포 특성을 한외여과법을 이용하여 조사하였다. 반응 전의 부식산의 분자량 분포는 30,000 daltons 이상의 고분자 물질이 41.5%로 가장 큰 부분을 차지하고 있었으며, 500 dalton 이하의 저분자 물질은 15.2%로 상대적으로 낮은 분포율을 보였다. UV 조사 시간이 증가함에 따라 고분자에서 저분자로의 전환율이 증가하였다. 특히, 30,000 daltons 이상의 고분자물질이 생물학적으로 처리 효율이 높은 500 daltons 이하의 저분자물질로 전환되는 비율은 UV 단독조사 (35.3%)에 비교해 촉매가 첨가된 경우인 $UV/TiO_2$ 및 $UV/H_2O_2$ 시스템에서 각각 58.9%와 87.7%으로 증가하였다. 오존 시스템에서는 500 daltons 이하의 저분자로의 전환율보다는 3,000~30,000 daltons의 중간크기 분자량 분포율이 증가하였다. 오존 단독 시스템에서는 10,000~30,000 daltons 크기의 분포율이 최종 60분 처리시 41.5%로 가장 높게 나타났으며, $O_3/H_2O_2$ 시스템에서는 10,000~30,000 daltons과 3,000~10,000 daltons이 각각 38.9%, 26.2%으로 높은 분포율을 나타냈다. 이상에서 얻어진 결과를 토대로 수중 부식산의 보다 효과적인 제거를 위하여, $UV/H_2O_2$, $UV/TiO_2$ 및 $O_3$, $O_3/H_2O_2$ 시스템 등과 연계하여 처리할 수 있는 단위공정을 제안하였다.

• 한국조경학회지
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• 제48권3호
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• pp.34-44
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• 2020

본 연구는 식생기반 LID 시스템 모델을 기반으로 생태적 구성요소의 성능 분석 방향을 제시하기 위해, SWMM 전산모의와 강우·유출 모의장치를 이용하여 모니터링 결과 간의 통계적 유의성을 분석하고, 시스템 사전설계에 요구되는 기초자료를 제공하고자 한다. 또한, 선행연구에서 상대적으로 논의가 부족했던 식생기반 LID 시스템의 토양, 식생 모델 및 분석 방안을 종합하고, 장치형 LID 시스템을 대체할 수 있는 성능 정량화 방향을 제시하려 한다. 인공강우재현 모니터링 40분 경과 후 실험구와 대조구 모두 최대강우강도인 142.91mm/hr(n=3, sd=0.34), 142.24mm/hr(n=3, sd=0.90)로 집계되었다. 우량주상도 대비 10분, 50분 구간은 낮은 강우강도가 재현되었으며, 20분, 30분, 40분 구간은 높은 강우강도가 확인되었다. 우수유출 지연효과의 경우, 실험구의 유출강도 저감량은 대조구의 최대유출강도가 발생된 50분에 0.46mm/min을 기록하여, 79.8% 저감된 것으로 분석되었다. 전산모의의 경우, 실험구의 유출강도 저감량은 대조구의 최대유출강도가 발생된 50분에 0.05mm/min을 기록하여, 99.1% 저감된 것으로 모의되었다. 최대 강우유출강도의 경우, 실험구(Dv=30.35, NSE=0.36)는 인공강우 모니터링과 SWMM 전산모의가 동일하게 70분에 각각 0.77mm/min, 1.06mm/min을 기록하였다. 대조구(Dv=17.27, NSE=0.78)도 동일하게 50분에 각각 2.26mm/min, 2.38mm/min으로 집계되었다. 상기 연구결과를 통해 강우·유출 모의장치와 SWMM 전산모의 간의 통계적 유의성을 통해 단일 식생이 적용된 LID 시스템의 우수유출저감 성능의 사전설계 방향을 제시할 수 있었다. 또한, LID 시스템의 토양, 식생 모델 및 분석방법을 종합하여, 사전설계와 연계 가능한 식생 및 토양 부문의 매개변수 정량화 방안이 정리되었다. 다만, 단일 식생기반 LID 시스템으로 유형과 물리적 변수가 제한되었고, 모니터링, 전산모의 결과 간의 통계적 유의성 보정에 요구되는 알고리즘 연구가 후속되어야 할 것으로 판단된다.

• 한국경제지리학회지
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• 제20권3호
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• pp.329-352
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• 2017

2000년대 후반 이후 북중 접경지역에 입지한 한국 투자기업은 북한의 핵실험 및 미사일 도발 행위에 대한 국제 사회 및 우리나라 독자적 대북 제재 조치로 인해 위탁가공 거래 단절과 탈입지를 경험하고 있다. 그러나 2013년 북중 접경지역에 출경가공무역 제도의 도입은 중국 내수 시장 기반의 대북 위탁가공 생산의 활성화를 가져왔다. 그 결과, 그동안 대북 위탁가공 거래에서 우리나라가 차지했던 역할을 중국기업들이 대신하면서 북중 접경지역의 대북위탁가공 네트워크의 지리는 더욱 복잡하게 형성되었다. 따라서 본 논문은 북중 접경지역 랴오닝성 단둥시에 입지하고 있는 대북 위탁가공 업체들을 사례로 이들의 대북 위탁가공 생산 네트워크의 특성을 분석함으로써 접경지역이 갖는 예외적 성격을 분석하였다. 기본적으로 대북 위탁가공 생산 네트워크의 형성은 북한의 양질의 저임금 노동력 활용하기 위해서이다. 이와 같은 네트워크 형성을 가능하게 한 요인은 크게 두 가지 측면에서 바라볼 수 있다. 첫째, 북중간 경제교류 강화와 북한을 개발의 대상으로 바라본 지경학적 요인이다. 예를 들어, 출경가공무역의 도입은 제3국 수출보다는 중국 내수 시장을 기반으로 하는 접경지역 기업에게 대북 위탁가공무역을 허용함으로써 이들 기업이 제도적으로 북한의 풍부한 양질의 저임금 노동력에 접근 가능하게 하였다. 둘째, 지경학적 수단을 통한 북한 체제 안정을 위한 지정학적 요인이다. 대북 위탁가공 생산 네트워크의 활성화는 북한의 외화벌이를 보장하기 때문에 북한이 체제의 완충국으로서 역할을 지속 가능하게 한다. 이는 체제의 완충국으로서 북한의 경제 및 체제 안정을 적극적으로 관리하기 위한 중국의 지전략적 의도가 반영된 것이라 할 수 있다. 다시 말해, 대북 위탁가공 네트워크는 지경학과 지정학이라는 두 가지 대비되는 담론적 실천에 의해 영향을 받고, 더 나아가 북중 접경지역의 공간경제 특성을 우연적이면서 다채로운 모습으로 그려낸다. 결론적으로 북중 접경지역은 각종 변경무역제도와 출경가공무역제도와 같이 자본과 노동의 이동성을 높여주는 예외적인 법률과 제도가 작동하는 공간이며, 대북 위탁가공을 통해서 북한의 양질의 노동력을 매우 낮은 비용으로 활용함으로써 잉여가치가 창출되는 착취의 공간적 특성이 나타난다.