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| 1 | Estimating the production and mortality of fine roots using minirhizotrons in a Pinus densiflora forest in Gwangneung,Korea显示文摘The aim of this study was to estimate fine root production(FP) and fine root mortality(FM) at 0–10,10–20,and 20–30 cm soil depths using minirhizotrons in a75-year-old Pinus densiflora Sieb.et Zucc.forest located in Gwangneung,Korea.We developed the conversion factors(frame cm-2) of three soil depths(0.158 for 0–10 cm,0.120 for 10–20 cm,and 0.131 for 20–30 cm) based on soil coring and minirhizotron data.FP and FM were estimated using conversion factors from March 26,2013 to March 2,2014.The annual FP and FM values at the 0–30 cm soil depth were 3200.2 and 2271.5 kg ha^(-1)yr^(-1),respectively.The FP estimate accounted for approximately 17 % of the total net primary production at the study site.FP was highest in summer(July 31–September 26),and FM was highest in autumn(September 27–November 29).FP was positively correlated with seasonal change in soil temperature,while FM was not related to that change.The seasonality of FP and FM might be linked to above-ground photosynthetic activity.Both FP and FM at the 0–10 cm depth were significantly higher than at 10–20 and20–30 cm depths,and this resulted from the decrease in nutrient availability with increasing soil depth.The minirhizotron approach and conversion factors developed in this study will enable fast and accurate estimation of the fine root dynamics in P.densiflora forest ecosystems. | Seung Hyun Han Soonjin Yun Jongyeol Lee Seongjun Kim Hanna Chang Yowhan Son | 2016 | Journal of Forestry Research2016，27，5： | 2 |
| 2 | Forest structure and carbon dynamics of an intact lowland mixed dipterocarp forest in Brunei Darussalam显示文摘Tropical forests play a critical role in mitigating climate change because they account for large amount o terrestrial carbon storage and productivity.However,there are many uncertainties associated with the estimation o carbon dynamics.We estimated forest structure and carbon dynamics along a slope(17.3°–42.8°)and to assess the relations between forest structures,carbon dynamics,and slopes in an intact lowland mixed dipterocarp forest,in Kuala Belalong,Brunei Darussalam.Living biomass,basa area,stand density,crown properties,and tree family composition were measured for forest structure.Growth rate,litter production,and litter decomposition rates were also measured for carbon dynamics.The crown form index and the crown position index were used to assess crown properties,which we categorized into five stages,from very poor to perfect.The living biomass,basal area and stand density were 261.5–940.7 Mg ha^(-1),43.6–63.6 m^2ha^(-1)and 6,675–8400 tree ha^(-1),respectively.The average crown form and position index were 4,which means that the crown are mostly symmetrical and sufficiently exposed for photosynthesis.The mean biomass growth rate,litter production,litter decomposition rate were estimated as11.9,11.6 Mg ha^(-1)a^(-1),and 7.2 g a^(-1),respectively.Biomass growth rate was significantly correlated with living biomass,basal area,and crown form.Crown form appeared to strongly influence living biomass,basal area and biomass growth rate in terms of light acquisition.However,basal area,stand density,crown properties,and biomass growth rate did not vary by slope or tree family composition.The results indicate that carbon accumulation by tree growth in an intact lowland mixed dipterocarp forest depends on crown properties.Absence of any effect of tree family composition on carbon accumulation suggests that the main driver of biomass accumulation in old-growth forests of Borneo is not species-specific characteristics of tree species. | Sohye Lee Jongyeol Lee Seongjun Kim Yujin Roh Kamariah Abu Salim Woo-Kyun Lee Yowhan Son | 2018 | Journal of Forestry Research2018，29，1： | 2 |
| 3 | State-of-charge and capacity estimation of lithium-ion battery using a new open-circuit voltage versus state-of-charge显示文摘 | Seongjun Lee Jonghoon Kim Jaemoon Lee B.H. Cho | 2008 | Journal of Power Sources2008，，2： | 2 |
| 4 | State-of- charge and Capacity Estimation of Lithiumion Battery Us- ing a New Open-circuit Voltage Versus State-of-charge 显示文摘 | Seongjun Lee Jonghoon Kim Jaemoon Lee et | 2008 | Journal of Power sources2008，，： | 1 |
| 5 | State-of- charge and capacity estimation of lithium-ion battery using a new open-circuit voltage versus state-of-charge 显示文摘 | Lee Seongjun Kim Jonghoon Lee Jaemoon | 2008 | Journal of Power Sources2008，185，2： | 1 |
| 6 | Discrimination of Li-ion batteries based on Hamming network using discharging–charging voltage pattern recognition for improved state-of-charge estimation显示文摘 | Jonghoon Kim Seongjun Lee B.H. Cho | 2010 | Journal of Power Sources2010，，： | 1 |
| 7 | State-of-charge and capacity estimation of lithium-ion battery using a new open-cir- cuit voltage versus state-of-charge 显示文摘 | Seongjun Lee Jonghoon Kim Jaemoon Lee | 2008 | Journal of Power Source2008，185，13： | 1 |
| 8 | State - of - charge and capacity estimation of lithium - ion bat- tery using a new open - circuit voltage versus state - of - charge显示文摘 | Lee Seongjun Kim Jonghoon Lee Jaemoon | 2008 | Journal of Power Sources2008，185，2： | 1 |
| 9 | Complementary cooperation algorithm based on DEKF combined with pattern recognition SOC/capacity estimation and SOH prediction 显示文摘 | Kim Jonghoon Lee Seongjun Cho B H | 2012 | IEEE Transactions on Power Electronics2012，27，1： | 1 |
| 10 | State-of- charge and Capacity Estimation of Lithiumion Battery Using a New Open-circuit Voltage Versus State-of-charge显示文摘 | Seongjun Lee Jonghoon Kim Jaemoon Lee | 2008 | Journal of Power Sources2008，185，： | 1 |
| 11 | State-of- charge and Capacity Estimation of Lithiumion Battery Using a New Open-circuit Voltage Versus State-of-charge显示文摘 | LEE Seongjun KIM Jonghoon LEE Jaemoon | 2008 | Journal of Power Sources2008，185，： | 1 |
| 12 | State-of-charge and capacity estimation of lithium-ion battery using a new open-circuit voltage versus state-of-charge显示文摘 | Seongjun Lee Jonghoon Kim Jaemoon Lee | | 0，，02： | 1 |
| 13 | State-of-charge and Capacity Estimation of Lithiumion Battery Using a New Open- circuit Voltage Versus State-of-charge 显示文摘 | Seongjun Lee Jonghoon Kim Jaemoon Lee et | 2008 | Journal of Power sources2008，，185： | 1 |
| 14 | State of charge and capacity estimation of lithium ion battery using a new open circuit voltage versus state of charge显示文摘 | Seongjun Lee Jonghoon Kim Jaemoon Lee | 2008 | Journal of Power Sources2008，185，2： | 1 |
| 15 | Is quantum capacitance in graphene a potential hurdle for device scaling?显示文摘 | Jaeho Lee Hyun-Jong Chung David H. Seo Jaehong Lee Hyungcheol Shin Sunae Seo Seongjun Park Sungwoo Hwang Kinam Kim | 2014 | Nano Research2014，7，4： | 0 |
| 16 | Analysis of opto-thermal interaction of porcine stomach tissue with 808-nm laser for endoscopic submucosal dissection显示文摘In endoscopic submucosal dissection(ESD),the narrow gastrointestinal space can cause difficulty in surgical interventions.Tissue ablation apparatuses with high-power CO_(2) lasers or Nd:YAG lasers have been developed to facilitate endoscopic surgical procedures.We studied the interaction of 808-nm laser light with a porcine stomach tissue,with the aim of developing a therapeutic medical device that can remove lesions at the gastrointestinal wall by irradiating a near-infrared laser light incorporated in an endoscopic system.The perforation depths at the porcine fillet and the stomach tissues linearly increased in the range of 2–8mm in proportion to the laser energy density of 63.7–382 kJ/cm^(2).Despite the distinct structural and compositional di®erence,the variation of the perforation depth between the stomach and the fillet was not found at 808-nm wavelength in our measurement.We further studied the laser–tissue interaction by changing the concentration of the methyl blue solution used conventionally as a submucosal fluidic cushion(SFC)in ESD procedures.The temperature of the mucosal layer increased more rapidly at higher concentration of the methyl blue solution,because of enhanced light absorption at the SFC layer.The insertion of the SFC would protect the muscle layer from thermal damage.We confirmed that more effective laser treatment should be enabled by tuning the opto-thermal properties of the SFC.This study can contribute to the optimization of the driving parameters for laser incision techniques as an alternative to conventional surgical interventions. | Seongjun Kim M.Tamim Hossain Don Haeng Lee Jung Kyung Kim | 2015 | Journal of Innovative Optical Health Sciences2015，8，6： | 0 |
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