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Investigation of Total Nutrient Usage Amount in Korea Facility Cultivation Area
Ji Su Ha(하지수),So Yeong Park(박소영),Ho Gyeong Chae(채호경),Tae young Kim(김태영),Seul Bi Lee(이솔비),Chang Hoon Lee(이창훈),Ouk Kyu Han(한옥규),Gil Won Kim(김길원) 한국토양비료학회 2021 한국토양비료학회 학술발표회 초록집 Vol.2021 No.11
Korea facility cultivation area is continuously increased and the total cultivation area has reached 80,611 ha in 2020. Facility cultivation area have been put a large amount of nutrients to increase crop productivity under intensive cultivation. The input of excessive nutrients can reduce the growth of crops due to salt accumulation in soil, and accumulated nutrients probably make environmental pollution such as eutrophication, micro dust, and blue baby syndrome. In 2016, the soil EC data of the facility revealed that most of the facility cultivation soils exceeded the crop growth EC range (4dS/m). Therefore, we studied the amount of nutrient input of the facility cultivation area to understand how much nutrient were applied. The total nutrient (N, P₂O<SUB>5</SUB>, K₂O) input rates were investigated from 9 major provinces in facility cultivation area from research reports and published papers. Finally, the amount of excess nutrient input was calculated with total input amount minus the recommended fertilization amount based from soil test. Total nutrient inputs exceeded than recommended fertilization level by 60~640%, 70~700%, and 96~3600% for K₂O, N, and P₂O<SUB>5</SUB>, respectively. In addition, the cucumber and green peppers were applied the highest nutrient than other crops and Jeollanam-do showed highest nutrient input among the provinces which revealed that the huge amount of nutrients was applied in facility cultivation area. This will create a serious problems in soil and water ecosystems due to nutrient accumulation and leaching. Conclusively, we should apply recommended nutrient levels in facility cultivation for sustainable agriculture and environmental protection.
일회성 유산소 운동에 따른 골격근 섬유내 GLUT-4의 발현 기전
하경수 ( Ha Gyeong Su ),김재철 ( Kim Jae Cheol ),양용길 ( Yang Yong Gil ),윤정수 ( Yun Jeong Su ) 한국운동영양학회 2003 Physical Activity and Nutrition (Phys Act Nutr) Vol.7 No.3
It was the aim of this study to investigate the expression of GLUT-4. AMPK and PI3-kinase protein in skeletal muscle by a single bout of aerobic exercise. The male Sprague-Dawley rats underwent the treadmill running at the acute aerobic exercise (32 m/nlin, 15^(??), 90 min). The GLUT-4 expression, AMPK and Pl3-kimase activity in gastrocnemius and soleus muscles were examined by Western blotting. By the acute aerobic exercise. the expression of GLUT-4 in gastrocnemius was significantly increased in the period of recovery and AMPK activity only was higher immediately after exercise. The activity of PT3-kinase was not changed in all period of recovery. In soleus muscle, CLUT-4 expression was increased all time and AMPK was significantly increased at immediately and 24h after exercise but P13-kinase activity was not altered all time point. These finding suggests that GLUT-4 plays a role in the glucose transport in skeletal muscles and AMPK activity is essential step in the GLUT-4 expression but Pl3-kinase is not.
김재경 ( Jae-gyeong Kim ),오하빈 ( Ha-bin Oh ),김민수 ( Min-su Kim ),최영숙 ( Young-sook Choi ),안은지 ( Eun-ji Ahn ),김수인 ( Su-in Kim ),조경록 ( Gyeong-rok Jo ),이은서 ( Eun-ser Lee ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.2
사물인터넷을 기반으로 실시간으로 소화기 주변의 상태와 화재 발생 여부, 소화기의 상태를 확인할 수 있는 웹 시스템과 화재 알림을 받을 수 있는 애플리케이션을 설계하였다. 소화기 주변의 온도와 습도를 측정하여 화재 유무를 판단하고, 화재를 감지했을 시에 LED 불빛과 경고음을 출력한다. 자이로센서를 이용하여 소화기의 쓰러짐 상태를 파악한다. 웹페이지에서 소화기의 상태 및 소화기 주변의 온습도 상태, 화재 여부를 확인할 수 있다. 사용자는 애플리케이션을 이용하여 회원가입, 로그인을 수행할 수 있으며 화재 알림을 받을 수 있다.
Bak Su-Bin,Choi Hansol,Kim Gyoung-Deuck,Kim Ju Gyeong,Kwon Da-Ae,Kim Ha-Young,Son Dong-Won,Jeong Jang-Hun,Lee Byung-Woo,An Hyo-Jin,Lee Hak Sung 한국독성학회 2024 Toxicological Research Vol.40 No.2
HemoHIM G is a functional food ingredient composed of a triple herbal combination of Angelica sinensis, Ligusticum chuanxiong, and Paeonia lactiflora, to improve impaired immune function. Considering the pharmacological benefits of its constituent herbal components, HemoHIM G is anticipated to have various health benefits; however, its toxicity has not been thoroughly evaluated. Here, we conducted a comprehensive study to assess the safety of HemoHIM G in terms of acute oral toxicity, 13-week repeat-dose toxicity, and genotoxicity. In the oral acute toxicity study, Sprague–Dawley rats were orally administered a single dose of HemoHIM G at 5000 mg/kg/day, the limit dose for the acute study. No abnormal findings or adverse effects were observed in this study, as confirmed by gross pathology. A 13-week repeated-dose toxicity study was conducted with HemoHIM G at doses of 1250, 2500, and 5000 mg/kg/day to examine the subchronic toxicity in both male and female rats after 28 days of dose-range finding study. No test substance-related clinical signs or mortality was observed at any of the tested doses. Gross pathology, hematology, blood chemistry, and histopathology were within normal ranges, further supporting the safety of HemoHIM G. Therefore, the NOAEL of HemoHIM G was considered to be at 5000 mg/kg/ day for both sexes of rats. Bacterial reverse mutation tests, a chromosome aberration test in human peripheral blood lymphocytes, and a mouse micronuclei test were conducted to identify the potential genotoxicity of HemoHIM G. HemoHIM G is non-mutagenic and non-clastogenic. Collectively, these findings provide valuable evidence for the safe use of HemoHIM G as a functional food ingredient.
Through the Industrial Complex of Dry Organic Waste Resource Recycling Network
Yong-ha Kim,Gyu-hyun Pyun,Eun-song Lee,Jong-pil Han,Su-gyeong Yu 한국폐기물자원순환학회 2015 한국폐기물자원순환학회 학술대회 Vol.2015 No.05
There are a large number of the food companies in Gunsan National Industrial Complex, and the organic sludge generated in these industrial wastewater treatment plants are generally being dealt with ocean dumping methods. As this method will be prohibited from January 1, 2016, it is inevitable to select the method like the reclamation. All over the country, landfill is lacking, and become a target of public grievance since it is recognized as an abomination facility. Consequently it has problem to secure the new location. These reasons lead to increase the organic sludge disposal cost, and it needed to seek the economical and eco-friendly processing methods. This research is regarding the Solid Refuse Fuel technique which is dried and processed the organic sludge generated in Gunsan National Industrial Complex. With Solid Refuse Fuel technique, in the environmental, safety, efficiency and economical aspect, it can derive competitive production technology, promote the Solid Refuse Fuel business and finally build a nationwide network. Through this study, we can derive the optimal manufacturing process from the examination of properties of organic sludge and drying. CFBC is tested the efficiency of solid fuel by the combustion experiment. It is very significant that we develop the Solid Refuse Fuel technique with the sludge generated in food industrial waste treatment plant and derive new competitive manufacturing processes.