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Sang-Ho Jeon,Sunhwa Park,Da-Hee Song,Jong-yeon Hwang,Moon-su Kim,Hun-Je Jo,Deok-hyun Kim,Gyeong-Mi Lee,Ki-In Kim,Hye-Jin Kim,Tae-Seung Kim,Hyen-Mi Chung,Hyun-Koo Kim 한국토양비료학회 2017 한국토양비료학회지 Vol.50 No.5
To establish new metal groundwater standard, 5 metals such as aluminum, chromium, iron, manganese, and selenium were evaluated by Chemical Ranking Of groundWater pollutaNts (CROWN) including possibility of exposure, toxicity, interest factor, connection standard for other media, and data reliability. 430 groundwater samples in 2013 and 2014 were collected semiannually from 110 groundwater wells and they were analyzed for selenium, manganese, iron, chromium, and aluminum. For this study, 430 groundwater samples were categorized into 3 geological distribution features, such as igneous, metamorphic, and sedimentary rock region and geological background levels were divided by pre-selection methods. For the results, the average concentrations of aluminum, chromium, iron, manganese, and selenium in 430 groundwater samples were 0.0008 mg L<SUP>-1</SUP>, 0.0001 mg L<SUP>-1</SUP>, 0.174 mg L<SUP>-1</SUP>, 0.083 mg L<SUP>-1</SUP>, and 0.0004 mg L<SUP>-1</SUP><SUP></SUP>, respectively. In addition, among various geologies, average concentration of selenium was the highest in igneous rock region, average concentrations of chromium, manganese and aluminum were the greatest in sedimentary rock region, and average concentration of iron was the most high in metamorphic rock region. As a result of the geological background concentration with pre-selection method, background concentrations of selenium and aluminum in groundwater samples were the highest from sedimentary rock as 0.0010 mg L<SUP>-1</SUP> and 0.0029 mg L<SUP>-1</SUP> and background concentrations of manganese and iron in groundwater samples were the greatest from metamorphic rock as 0.460 mg L<SUP>-1</SUP> and 1.574 mg L<SUP>-1</SUP>, and no chromium background concentration in groundwater samples was found from all geology.
Effect of Bacillus mesonae H20-5 on Fruit Yields and Quality in Protected Cultivation
Sung-Je Yoo,Jeong Woong Kim,Sang Tae Kim,Hang-Yeon Weon,Jaekyeong Song,Mee Kyung Sang 한국식물병리학회 2019 식물병연구 Vol.25 No.2
A variety of microorganisms in rhizosphere affect plant health by plant growth promotion, mitigation of abiotic stresses as well as protection from pathogen attacks. In our previous study, we selected a bacterium, Bacillus mesonae H20-5, for alleviation of salinity stress in tomato plants. In this study, we verified the effect of a liquid formulation of B. mesonae H20-5 (TP-H20-5) on fruit production and phytochemical accumulation including lycopene and polyphenol in cherry tomato and strawberry fruits in on-farm tests of protected cultivation under salinity stress. When vegetables including tomato, cherry tomato, strawberry, and cucumber were treated with TP-H20-5 by irrigated systems, final marketable yields were increased by 21.4% (cherry tomato), 9.3% (ripen tomato), 120.6% (strawberry), and 14.5% (cucumber) compared to untreated control. Moreover, treatment of TPH20- 5 was showed increase of phytochemicals such as lycopene and total polyphenol compared to untreated control in cherry tomato and strawberry. Therefore, these results indicated that a formulant of B. mesonae H20- 5 can be used as a potential biofertilizer for increasing fruit production and quality.
Sung Min Bae,Bit Na Rae Yun,Tae Young Shin,Jae Bang Choi,Yeon Ho Je,Byung Rae Jin,Soo Dong Woo 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.10
The Classical Swine Fever Virus (CSFV) is a member of the Pestivirus genus of the Flaviviridae. The polyprotein composed of eight nonstructural and four structural proteins (nucleocapsid protein C and three envelope glycoprotein E0, E1 and E2). E2, the most immunogenic of the CSFV glycoproteins, induces a protective immune response in swine. The objective of this study was to enhance production of E2 protein by fusion with partial polyhedrin of nucleopolyhedrovirus in insect cells. We generated various E2 form by fusion with different combinations of the partial polyhedrin and deletion of the C-terminal transmembrane region (TMR). Expression of the E2 protein was identified by SDS-PAGE and Western blot analysis using anti-CSFV E2 monoclonal antibodies. The fusion expression of an E2 protein with the partial polyhedrin markedly increased expression levels. Also, expression of E2 proteinlacking TMR region was higher than that of intact E2 protein. As a result, the fusion expression of E2 protein lacking the C-terminal TMR with partial polyhedrin was significantly increased in insect cells. These suggest that the fusion of target foreign protein with partial polyhedrin could enhance significantly the production of target protein.
Trajectory Generation and Dynamic Control of Planar Biped Robots With Curved Soles
Yeon Je-Sung,Kwon O-Hung,Park Jong-Hyeon The Korean Society of Mechanical Engineers 2006 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.20 No.5
This paper proposes a locomotion pattern and a control method for biped robots with curved soles. First, since the contact point of a supporting leg may arbitrarily move back and forth on the ground, we derived the desired trajectory from a model called the Moving. Inverted Pendulum Model (MIPM) where the Zero Moment Point (ZMP) exists at the supporting point and can be moved intentionally. Secondly, a biped robot with curved soles is an under-actuated system since the supporting point contacting with a point on the ground has no actuator during the single supporting phase. Therefore, this paper proposes a computed-torque control for this under-actuated system using decoupled dynamic equations. A series of computer simulations with a 7-DOF biped robot with curved soles shows that the proposed walking pattern and control method are effective and allow the biped robot to walk fast and stably, and move more like human beings. Also, it is shown that the curved sole shape has superior energy consumption compared to flat soles, and greater efficiency in ascending and descending the stairs.