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Journal of Mountain Science 2016年第9期13卷 1645-1651页

作者： Hong Chul PARK choong hyeon oh Korea National Park Research Institute Korea National Park Service Department of Biological and Environmental Science Dongguk University

This study assesses potential effects of adaption to climate change in the future as a carbon related value using a baseline and credit approach, considering the implementation of the Reducing Emissions from Deforestation and forest Degradation （REDD） mechanism. Basic data were obtained for implementing the REDD mechanism in the Democratic People＇s Republic of Korea （DPRK） for scientific decision-making to prevent deforestation and forest degradation. The potential effects according to the implementation of the REDD mechanism in the DPRK based on forest status data （the latest） are as follows. If the deforestation rate is reduced to a level below 6% through a 20-year REDD mechanism beginning in 2011, 0.01-11.64 C-tons of carbon credit per ha could be issued for DPRK. Converted into C02-tons per ha, this amounts to 0.03-42.68 C02-tons, which translates to a minimum of 226,000 CO2-tons and a maximum of 289,082,000 C02-tons overall for forests in DPRK. In terms of carbon price, this measures up to 1.1o million USD- 1.4 billion USD, considering that the REDD carbon price in voluntary carbon markets in 2010 was around 5 USD.

关键词： Climate change Global warming Baseline approach Carbon Credit

科尔沁沙地丘间低地不同生活型物种格局与共存机制

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生态学杂志 2016年第1期35卷 111-117页

作者：贾美玉李雪华吴忠铉朴弘哲苗纯萍韩旭中国科学院沈阳应用生态研究所沈阳110016 中国科学院研究生院北京100049 韩国东国大学

植物种群格局与不同生活型之间物种共存的研究有助于理解物种的生态适应性。丘间低地是科尔沁沙地生态系统发育的一个关键阶段,在此生境中存在多种生活型的植物。采用样线法调查了科尔沁沙地丘间低地100个1 m×1 m样方,根据调查结果选... 详细信息

植物种群格局与不同生活型之间物种共存的研究有助于理解物种的生态适应性。丘间低地是科尔沁沙地生态系统发育的一个关键阶段,在此生境中存在多种生活型的植物。采用样线法调查了科尔沁沙地丘间低地100个1 m×1 m样方,根据调查结果选取了分属于4个科3个生活型的15种植物为对象进行格局和共存机制的研究。经格局指数以及Poisson分布的t检验和χ2检验表明:15个物种的种群分布均为聚集分布,但聚集强度差别很大,这可能由种子扩散、物种形态、植物发育时期以及土壤养分条件差异导致;聚集指数DI、CI、m*、GI之间呈极显著正相关关系,表明它们表征共同的生态学意义,相互之间可以替代;多年生草本这一生活型内的物种相互共存较多,多年生草本与其他两个生活型共存较少,这可能与相同生活型物种生态位重叠度大有关。Spearman秩相关和Pearson相关对物种对的检验结果均表明:部分豆科植物与其他科的多年生草本共存机会较大,这可能与豆科植物对改良土壤和减少病虫害有关。物种聚集分布以及不同生活型内几个物种对正相关显著是物种适应环境的结果,对结果显著的部分植物进一步研究可以为沙地植被恢复提供理论指导。

关键词：丘间低地聚集分布一年生草本多年生草本半灌木物种共存

Naturalization of Landscaping Woody Plant, Magnolia obovata Potentially Invasive Species

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Journal of Mountain Science 2015年第1期12卷 30-38页

作者： KWON oh Jung oh choong hyeon Graduate School Department of Biological and Environmental Science Dongguk University Department of Biological and Environmental Science Dongguk University

Magnolia obovata, a tree species native to Japan, is a traditional landscaping tree that has also been introduced to various countries. M. obovata individuals have recently emerged in non-planting areas in Korea, prompting us to investigate its distribution by establishing Dosolsan in an urban forest of Daejeon City as the target site. In order to determine its naturalization, the study explored the status of population growth by examining the diameter at breast height of the individuals, and diameter diminution quotient was calculated. Cores of the trees were collected, and the age distribution was estimated by regression analysis. Reproduction possibility was analyzed by verifying the flowerblooming and fruit-bearing. Spontaneous colonization was investigated in the other potential sites which have different location and environment, *** diameter distribution showed a reverse J-shaped curve, and the diminution quotient was ≥ 1.8. The population was composed of different generations,thus confirming the growth of the population. The distributed M. obovata grew and flowered normally,and followed a normal life cycle. The same phenomenon was observed in other planting areas,residual forests in urban or rural areas, alluvial islands, and mountain forests. The continuous spread of M. obovata in new ecosystems may be attributable to its long-term distribution by birds, relatively fast growth, and maturity time. Investigations on the naturalization and spread of M. obovata in Korea, as well as in various countries, are warranted.

关键词： Magnolia obovata Diameterdistribution Diminution quotient Invasive plant Naturalized plant

Effects of Microstructure of Aluminum Substrate on Ordered Nanopore Arrays in Anodic Alumina

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Journal of Materials Science & Technology 2015年第7期31卷 751-758页

作者： choong-Soo Chi Jong-Ho Lee Insoo Kim Han-Jun oh School of Advanced Materials Engineering Kookmin University Department of Chemistry Hanseo University Advanced Materials Science and Engineering Kumoh National Institute of Technology Department of Materials Science Hanseo University

The effects of microstructure of aluminum substrate on regular nanopore arrangement in anodic alumina layer were investigated. The dissimilar microstructure and texture on aluminum sheets were prepared by various cold rollings and heat treatments, and anodic alumina nanoporous layers were fabricated by two step anodizing method at 40 V in oxalic acid solution. For the aluminum sheets with similar surface texture and annealing condition except purity, the regularity of the nanopore arrangement on the anodic alumina layer increased with purity of aluminum substrate. The difference of surface texture on AI sheets is not critical parameter for formation of ordered nanopore array compared with purity and heat treatment of substrate aluminum. The investigation suggested that the purity and reasonable annealing temperature of aluminum substrate are very important process to obtain the highly-ordered nanopore array on anodic alumina layer.

关键词： AnodizationNanoporous structureTextureAluminum alloy

The Effect of the Irrigated Gudeuljang Paddy System on Biodiversity on Cheongsan-do(“island”)

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Journal of Resources and Ecology 2016年第3期7卷 218-222页

作者： PARK Eunha oh choong-hyeon 东国大学研究生院韩国京畿道410-820 东国大学韩国京畿道410-820

This study has been conducted to identify the characteristics of the biodiversity promoted and maintained by gudeuljang paddy *** this purpose,a literature review was used to identify the distribution of gudeuljang paddy field on *** on the results of the review,a target area was selected to conduct an investigation of the flora of the vascular plants and a phytosociological examination,which included general farmlands and neighboring areas,was made for *** a result of the study,we were able to identify the differences between the type of gudeuljang paddy field that uses continuous irrigation and other types of land *** found that the unique physical structure for water passage found in gudeuljang paddy fields with continuous irrigation is more effective in promoting biodiversity than the other types of land use in this *** conclusion,the presence of gudeuljang paddy fields on Cheongsan-do contributes more to the creation of an appropriate biohabitat than it detracts from such a ***,the presence of gudeuljang paddy fields is significant in that it exercises positive influence on the promotion of biodiversity,such as propagation of species,and the connection of habitats in adjacent forest,village,and farm *** result shows that the maintenance and preservation of gudeuljang paddy fields on Cheongsan-do plays a crucial part in the preservation and maintenance of the biodiversity for vegetation that grows among rocks and in adjacent forest areas.

关键词： terraced paddy field agriculture and fisheries heritage

Village Woods and Agricultural Biodiversity in South Korea

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Journal of Resources and Ecology 2014年第4期5卷 301-305页

作者： oh choong hyeon JEONG Bo Kwang 东国大学生物与环境科学系东国大学研究生院

In South Korea vilage woods are composed of an isolated tree or a number of trees, located near rural vilages and which have an apparent fengshui shape. Vilage woods also function as wildlife habitat and promote agricultural biodiversity. Here vilage woods were classiifed in to four types （natural forest, semi-natural forest, half-natural forest and artiifcial forest） and 23 main tree species（dominant or sub-dominant species） *** densilfora is dominant at 50 sites, and Zelkova serrata is dominant at 45 sites. Across village woods, emerged plants comprise 125 families, 519 genus and 1081 species. In spite of the extremely small area of village wood, 100 000 km2 or 0.00278% Korea’s territory, this ecosystem has an important biodiversity and habitat conservation function. Vilage woods are not only a base for conserving biodiversity, but also deliver ecosystem services in South Korea.

关键词： fengshui rural vilage function of habitat ecosystem service

Purifying behavior of photocatalytic TiO_2 anodized in nitrate ion containing solution

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中国有色金属学会会刊：英文版 2009年第4期19卷 1027-1030页

作者： Jin-Wook CHOI Seong-Eun LEE Byung-Gwan LEE Yong-Soo JEONG Han-Jun oh choong-Soo CHI School of Advanced Materials Engineering Kookmin University Korea Institute of Materials Science Department of Materials Science Han seo University

Mesoporous titanium dioxide films were fabricated on titanium plates by micro-arc oxidation *** increase the photocatalytic activity of the films,NH4NO3 was added to the H2SO4 solution,and anodizing was carried out at high voltages using a DC power *** crystal structure,chemical composition,surface morphology and the optical property of the films were investigated by XPS,XRD,UV-VIS spectroscopy and *** photocatalytic activity of the films was evaluated by the decomposition of aniline blue,and the activity of the films for the degradation turned out to be improved by the additives to the electrolyte *** enhanced photocatalytic activity might result from the increased porosity and nitrate ion incorporation into the anodic films by micro arcing,and thereby the TiO2 layer might exhibit an improved absorption property for the visible light.

关键词：二氧化钛硝酸溶液盐离子催化行为氧化钛薄膜光催化活性 H2SO4溶液净化

Formation behavior of anodic TiO_2 nanotubes in fluoride containing electrolytes

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中国有色金属学会会刊：英文版 2009年第4期19卷 842-845页

作者： Byung-Gwan LEE Jin-Wook CHOI Seong-Eun LEE Yong-Soo JEONG Han-Jun oh choong-Soo CHI School of Advanced Materials Engineering Kookmin University Korea Institute of Materials Science Department of Materials Science Han seo University

TiO2 nanotube layers can be formed with titanium in the electrolytes containing fluoride by electrochemical *** role of fluoride ion,the crystallinity of the anodic oxide,and the chemical state were *** results show the anodic film is composed of oxide and a little amount of *** presence of F- ions leads to chemical dissolution of Ti oxide layer and prevents hydroxide ***,chemical dissolution rate increases with increasing the fluoride content in the range of 0-2%(in mass fraction) because F- ions in electrolyte attack the interface and allow the ions of the electrolyte to easily penetrate into the *** as-anodized TiO2 nanotubes exhibit an amorphous *** treated nanotubes are composed of mixtures of the anatase and rutile phases.

关键词： TiO2纳米管阳极氧化处理氟离子电解质行为二氧化钛化学溶解电化学方法

Impact of inhaled and intranasal corticosteroids on glucose metabolism and diabetes mellitus:A mini review

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World Journal of Diabetes 2023年第8期14卷 1202-1211页

作者： Kay choong See Department of Medicine National University HospitalSingapore 119228Singapore

Inhaled corticosteroids(ICS)and intranasal corticosteroids(INS)are the mainstays of treatment for chronic respiratory diseases like asthma,chronic obstructive pulmonary disease,and allergic *** addition,these localized forms of steroid therapy are generally considered to have fewer systemic side effects compared to long-term oral ***,concern and controversy remain over the impact of ICS and INS on the incidence and control of diabetes mellitus(DM).Given the widespread use of ICS and INS,even small individual effects on DM could lead to large consequences for the global *** large observational studies suggest that high dose ICS is associated with increased incident DM and worsened DM control,though the contribution of other risk factors is less *** addition,only two studies were done to investigate the association of INS and DM,with both studies demonstrating a short-term association of INS use with *** more research evaluating the risk of ICS/INS for DM-related adverse events is needed,high doses of ICS/INS should be avoided when *** following strategies for ICS/INS dose minimization can be considered:Use of non-pharmacological measures(trigger avoidance,smoking cessation,vaccination to avoid infection),control of comorbid conditions,use of non-ICS-containing medications,intermittent rather than regular ICS dosing,and appropriate de-escalation of high ICS doses.

关键词： Beclomethasone Budesonide Fluticasone Glucocorticoids Glucose Hyperglycemia

Glycemic targets in critically ill adults: A mini-review

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World Journal of Diabetes 2021年第10期12卷 1719-1730页

作者： Kay choong See Division of Respiratory and Critical Care Medicine Department of MedicineNational University HospitalSingapore 119228Singapore

Illness-induced hyperglycemia impairs neutrophil function,increases pro-inflammatory cytokines,inhibits fibrinolysis,and promotes cellular *** turn,these mechanisms lead to pneumonia and surgical site infections,prolonged mechanical ventilation,prolonged hospitalization,and increased *** optimal glucose control,blood glucose measurements need to be done accurately,frequently,and *** choosing glycemic targets,one should keep the glycemic variability<4 mmol/L and avoid targeting a lower limit of blood glucose<4.4 mmol/*** upper limit of blood glucose should be set according to casemix and the quality of glucose control.A lower glycemic target range(i.e.,blood glucose 4.5-7.8 mmol/L)would be favored for patients without diabetes mellitus,with traumatic brain injury,or who are at risk of surgical site *** avoid harm from hypoglycemia,strict adherence to glycemic control protocols and timely glucose measurements are *** contrast,a higher glycemic target range(i.e.,blood glucose 7.8-10 mmol/L)would be favored as a default choice for medical-surgical patients and patients with diabetes *** targets may be modified if technical advances for blood glucose measurement and control can be achieved.

关键词： Brain injuries Traumatic Critical care Diabetes mellitus Glycemic control Insulin infusion systems Sepsis