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Won, Hyun Kyu,Jeon, Hyon Sun,Han, Hee,Lee, Seung Jung,Jung, Byung Heon Institute of Forest Science 2017 Journal of Forest Science Vol.33 No.4
This study was aimed to analyze the increased forestry incomes by combining timber production and wood processing, which is one of 6th industrialization types in Korean forestry. The selected household has been engaged in forestry for two generations and they produce timber and associated wood products in their own facility. The wood products include dimension lumber, interior wood material, cutting board, and cube chips, the household also utilize logging and sawmill residues as well as seed and seedlings as by-products. Incomes and expenses that have been incurred on individual processes of the sequential timber production and wood processing were surveyed, and we analyzed the economic outcomes of entire business. The results of this study indicate that the gross income of the household is 122.3 million Korean won and the net income is 93.6 million Korean won. The net income of the household is approximately 2.8 times higher than the average net income of whole households in the forestry of Korea in 2016, which is approximately 4.3 times higher than that of households that have been particularly engaged in timber production over the country. We found that the 6th industrialization by combining the two sequential processes creates approximately 3.2 times as much added value compared to the case relying on timber production only.
해성점토의 물리적 및 화학적 특성에 미치는 염분의 영향
元燦喜,李秉錫 全北大學校 1992 論文集 Vol.34 No.-
The purpose of this study is to investigate the effect of the salt on the physical and chemical properties of marine clay based on the experiments such as specific gravity, grain-size analysis, consistency limit and PH test. The main results of this study are summarized as fellows. 1) The specific gravity of soil containing salt was greater than saltless soil and the specific gravity of soil containing salt was found to be decreased with desalting soil. 2) Due to floculation by the effect of salt, the grain size of marine, soil was found bigger than original grain size and passing percent also was more then 100% 3) The values of liquid were decreased by 7 ∼ 16%, plastic limit 0 ∼ 10%, with the increase of salt content. 4) The PH value was increased by 9.7 as 1% Na_2CO_3 was added. But when Na_2CO_3 was added more than 1%, the increase of PH value was little, with the increase of Na_2CO_3 content. And quantity of NaCl did not appear to influence PH value of sample soil and soil containing Na_2CO_3.
동적 섭식경로모델을 이용한 음식물에 대한 유도 방사능개입준위의 산정에 관한 연구
한문희,김병우,황원태 대한방사선 방어학회 1994 방사선방어학회지 Vol.19 No.3
한국 환경을 고려하여 개발된 동적 섭식경로 모델을 이용하여 한국인이 섭취하는 음식물에 대한 유도개입준위를 산정하였다. 섭식경로에 있어 중요한 피폭효과를 가지는 I-131은 유아의 갑상선에 대한 예탁선량당량에 대해, Cs-137과 Sr-90은 전신에 대한 예탁선량당량에 근거한 선량개입준위로부터 연령군별로 13개 음식물에 대해 유도개입준위를 산정하였다. 성인은 Cs-137과 Sr-90의 음식물에 대한 유도개입준위 산정에 있어 가장 중요한 연령군으로 평가되었다. 성인의 경우 쌀에서 Cs-137과 Sr-90의 유도개입준위는 여름철 침척의 경우 각각 2390, 47 Bq/kg, 겨울철 침적의 경우 각각 198, 79 Bq/kg으로 침적시점과 핵종에 따라 매우 다른 값의 변화를 보여주었다. The derived intervention levels in Korean foodstuffs were estimated using the dynamic ingestion pathway model which was developed considering Korean environment. The derived intervention levels were estimated from the intervention level of does based on the thyroid committed does equivalent of infant in the case of I-131, and the whole body committed does equivalent for age groups and 13 kinds foodstuffs in the cases of Cs-137 and Sr-90. The derived intervention levels were shown as a considerable variation with deposition time and radionuclide. The adult was the most important age group in the estimation of derived intervention levels for Cs-137 and Sr-90. In the adult, the derived intervention levels for rice were 2390 and 47 Bq/kg for Cs-137 and Sr-90 in the case of deposition in summer, respectively, and 198 and 79 Bq/kg in the case of deposition in winter, respectively.
정병욱,박동일,이준희,서정욱,원유홍,김웅,신현종,권영무 동국대학교 경주대학 1996 東國論集 Vol.15 No.-
합병증이 동반된 Meckel씨 게실을 가진 환자의 치료에 대한 필요성은 과정이 문제이다. 하지만 우연히 만나는 게실의 처치는 논란 중이다. 부수적인 게실 절제술(incidental diverticulectomy)의 제안자는 증상이 있는 게실의 외과적 처치는 중요한 이환 및 사망률은 지적한다. 이를 반대하는 사람들은 전 생애를 통해 합병증의 위험성이 낮게 나타나므로 필요가 없다고한다. 게실의 예방적 제거는 개복술시 우연히 발견 될 때 시행한다. 이는 남아있는 게실이 나중에 합병증을 일으키는 것보다 술후 합병증의 위험성이 매우 적음을 알 수 있다. 저자들은 합병증이 동반된 Meckel씨 게실 2예를 경험하였기에 문헌 고찰과 더불어 보고하는 바이다. The necessity for therapy with complicated Meckel's diverticular is a matter of course.However, management of the incidentally encountered diverticulum is controversial. Proponents of incidental diverticulectomy point to the significant morbidity and mortality rates of surgical treatment of symptomatic divenicular. Other authors base their opposition to incidental diveniculectomy on the low risk of complications developing during lifetime. Prophyillctic removal of the diveniculum is indicated when it is found incidentally at laparotomy, because there are few postoperative complications and the risk exists that the remaining diverticulum may be the cause of later complication. The 2 cases of complicated Meckel's diverticulum are reported with a brief review of literature.
전원선,이상철,김현정,배상병,김찬규,이남수,박노진,이규택,박성규,홍대식,박희숙,원종호 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.2
Thymoma is associated with myasthenia gravis, Pure red cell aplasia, and autoimmune diseases such as autoimmune hemolytic anemia, aplastic anemia, and hypogammaglobulinemia. It's association with aplastic anemia is rare and aplastic anemia appearing after surgical removal of thymoma is especially rare. The authors hereby report a case of aplastic anemia occuring in a patient who was diagnosed with thymoma and myasthenia gravis and had the tumor surgically removed. The patient was treated with anti-thymocyte globulin, cyclosporin, and prednisolone, and showed partial remission with hematologic improvements after 12 months.
이병수,이순흠,박동규,이동원,이선휘,황유동 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.2
we have developed cost-effective effectronic security system. The system is superior to the day-time alert system which is currently used for banks in Choongchung Province. The system can monitor 512 banks and inform the police of emergency state and its related informations. The developed svstem is under field test at a police station in Choongchung Province.
강병조,원승희,김상헌 대한생물치료정신의학회 1998 생물치료정신의학 Vol.4 No.2
The authors reviewed the biological etiologies of schizophrenic disorder such as genetic, viral, neurodevelopmental, neural network, sunspots and cerebral diabetic hypothesis. The etiology of schizophrenic disorder remains to be confirmed. Although genetic possibilities were suggested by many investigators, the genetic genes and their transmission methods have not been clarified yet. The neurodevelopmental hypothesis was reviewed in detail. This hypothesis includes genetic hypothesis, viral hypothesis, obstetrical complication hypothesis, neutritional deficience theory, NMDA receptor hypofunction theory and neural network theory. The neurdevelopmental hypothesis means that several developmental trajectories, related to early brain insults as well as the genetic factors affection postnatal neurodevelopment, possibly lead to this illness. An excessive pruning of the prefrontal corticocortical, and corticosubcortical synapses, perhaps involving the excitatory glutaminergic inputs to pyramidal neurons, may underlie schizophrenia.