检索结果-南通市图书馆

Changes of the Flowering Time of Trees in Spring by Climate Change in Seoul, South Korea

Phyton-International Journal of Experimental Botany 2020年第4期89卷 1019-1033页

作者： hyewon Kim Chanwoo park Jong Hwan Lim hye Woo Shin Interdisciplinary Program of EcoCreative The Graduate SchoolEwha Womans UniversitySeoul03760Korea Forest Ecology and Climate Change Division National Institute of Forest ScienceSeoul02455Korea Research Institute of Ecoscience Ewha Womans UniversitySeoul03760Korea

Flowering onset has attracted much attention in ecological research as an important indicator of climate ***,warmer temperatures advance flowering *** effect of climate warming on flowering onset is more pronounced in spring because the difference between atmospheric and water temperatures creates more rapid convection than in other *** analyzed the correlation between 73 species of spring woody plants in Hongneung Arboretum in Seoul,South Korea and the spring minimum temperature and average precipitation over the past 50 years(1968–2018).The spring minimum temperature and average precipitation have increased over the past 50 years,resulting in the advance of the first flowing date(FFD)in all 73 species by 8.5 days on average.A comparison of FFD changes over time by dividing the survey period into three time periods confirmed the advance of the FFD in 50 species(68%of investigated species)by 11.1 days on average in both Period 2(1999–2008)and Period 3(2009–2018)relative to Period 1(1968–1975).Additionally,a delay of the FFD by 3.2 days on average was observed in 8 *** FFD of Lonicera chrysantha(Caprifoliaceae)advanced by over 40 days and was highly correlated with the increased spring minimum *** of the sensitivity of plant responses to climate change revealed that a temperature rise of 1℃ was associated with an FFD advance of 1.2 days in all *** species that was most sensitive to temperature change was Spiraea pubescens ***(Rosaceae),whose FFD advanced by 4.7 days per 1℃ temperature *** increase in precipitation by 1 mm was found to result in a 0.1-day advance of the FFD of all *** tomentosa(Rosa-ceae)was the most sensitive species,that advanced by 2.6 days for each 1 mm increase in ***,for all species,the FFD was more sensitive to the change in temperature than in *** that the current greenhouse gas(GHGs)emission levels or atmospheric CO_(2) conc

关键词： Phenology first flowering date climate change

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparison of laser iridotomy using short duration532-nm Nd: YAG laser (PASCAL) vs conventional laser in dark irides

引用

International Journal of Ophthalmology(English edition) 2015年第2期8卷 288-291页

作者： hye Jin Chung Hae-Young park Su-Young Kim HanGil Eye Hospital Department of Ophthalmology and Visual Science College of Medicine the Catholic University of Korea

AIM: To evaluate the outcome of laser iridotomy using532-nm Nd: YAG laser(PASCAL) with short pulse duration and Nd: YAG laser compared to conventional combined laser ***: Retrospective, nonrandomized, comparative case series. Forty-five eyes of 34 patients underwent laser iridotomy. Twenty-two eyes underwent iridotomy using short duration PASCAL and Nd: YAG laser, and 23 eyes underwent iridotomy using conventional combined laser method. The average settings of PASCAL were60 μm and 700-900 m W with a short duration of 0.01 s to reduce the total applied energy. The conventional laser was 50 μm and 700-900 m W for 0.1s. After photocoagulation with these laser, the Nd: YAG laser was added in each group. Endothelial cell counts of preiridotomy and 2mo after iridotomy were measured and ***: All eyes completed iridotomy *** total energy used in the PASCAL group was 1.85 ±1.17 J. Compared to conventional laser 13.25 ±1.67 J, the energy used was very small due to the short exposure time of PASCAL. Endothelial cell counts were reduced by0.88% in the PASCAL group and 6.72% in the conventional laser group(P =0.044). The change in corneal endothelial cell counts before and after iridotomy was significant in conventional combined laser iridotomy group(P =0.004).CONCLUSION: Combined PASCAL and Nd:YAG laseriridotomy is an effective and safe technique in the dark brown irides of Asians. Furthermore, the short duration of exposure in PASCAL offers the advantages of reducing the total energy used and minimizing the corneal damage.

关键词： endothelium laser iridotomy 532-nm Nd: YAG laser

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Lactic Acid Fermentation from Coffee Ground Waste Hydrolysate by Lactobacillus rhamnosus

引用

Journal of Renewable Materials 2019年第4期7卷 365-372页

作者： Ja-Ryong Koo hye Min park Se Kyung Kim Hyun Shik Yun Department of Biological Engineering Inha UniversityIncheon 22212Korea Institute of Industrial Biotechnology Inha University Research and Business FoundationIncheon 22212Korea

Lactic acid is an important organic acid that is widely used in the food,pharmaceutical,and cosmetic *** acid was produced from coffee ground waste which contains fermentable sugars and is increasingly generated from our daily dietary *** 114 strains of Lactobacillus species,Lactobacillus rhamnosus ATCC 10863 was selected for the production of lactic acid from coffee ground *** alkali pretreatment and saccharification,cellulose and hemicellulose in coffee ground waste were converted into fermentable *** experiments were conducted at various alkali solution,concentrations,and *** pretreatment with 35 g/L of KOH at 121oC for 60 min,the highest concentration of fermentable sugars was *** optimum concentration of Viscozyme L was 2%when saccharification was proceeded at 55oC for 7 *** productivity of lactic acid fermentation was the highest(0.59 g/L/h)at 100 g of coffee ground waste(1x concentration),whereas the lactic acid concentration was the highest at 600 g of coffee ground waste(6x concentration).As the concentration of coffee ground increased,the lactic acid concentration was also increased,however,the amount was not proportional to the coffee ground waste *** this study,it was found that coffee ground waste could be used as a culture medium for Lactobacillus rhamnosus ATCC 10863 through pretreatment and saccharification for the production of lactic acid.

关键词： Coffee ground waste Lactobacillus rhamnosus lactic acid fermentable sugars saccharification alkali pretreatment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of citrulline on post-exercise rating of perceived exertion,muscle soreness,and blood lactate levels:A systematic review and meta-analysis

引用

Journal of Sport and Health Science 2020年第6期9卷 553-561页

作者： hye Chang Rhim Sung Jong Kim Jewel park Ki-Mo Jang College of Medicine Korea UniversitySeoul 02842Republic of Korea Department of Orthopaedic Surgery Anam HospitalKorea University College of MedicineSeoul 02841Republic of Korea

Background:Citrulline is one of the non-essential amino acids that is thought to improve exercise performance and reduce post-exercise muscle *** conducted a systematic review and meta-analysis to determine the effect of citrulline supplements on the post-exercise rating of perceived exertion(RPE),muscle soreness,and blood lactate ***:A random effects model was used to calculate the effect sizes due to the high variability in the study design and study populations of the articles included.A systematic search of PubMed,Web of Science,and *** was *** for study inclusion was limited to studies that were randomized controlled trials involving healthy individuals and that investigated the acute effect of citrulline supplements on RPE,muscle soreness,and blood lactate *** supplementation time frame was limited to 2 h before *** types and number of participants,types of exercise tests performed,supplementation protocols for L-citrulline or citrulline malate,and primary(RPE and muscle soreness)and secondary(blood lactate level)study outcomes were extracted from the identified ***:The analysis included 13 eligible articles including a total of 206 *** most frequent dosage used in the studies was 8 g of citrulline *** supplementation significantly reduced RPE(n=7,p=0.03)and muscle soreness 24-h and 48-h after post-exercise(n=7,p=0.04;n=6,p=0.25,respectively).However,citrulline supplementation did not significantly reduce muscle soreness 72-h post-exercise(n=4,p=0.62)or lower blood lactate levels(n=8,p=0.17).Conclusion:Citrulline supplements significantly reduced post-exercise RPE and muscle soreness without affecting blood lactate levels.

关键词： Amino acids Dietary supplements Ergogenic aid Nitric oxide Watermelon juice

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Soil texture affects the conversion factor of electrical conductivity from 1:5 soil-water to saturated paste extracts

引用

Pedosphere 2022年第6期32卷 905-915页

作者： Bo-Seong SEO Young-Jae JEONG Nu-Ri BAEK Hyun-Jin park hye In YANG Se-In park Woo-Jung CHOI Department of Rural and Bio-systems Engineering(BK21) Chonnam National UniversityGwangju 61186(Republic of Korea) Department of Renewable Resources University of AlbertaEdmontonAlberta T6G 2E3(Canada) Max Planck Institute for Biogeochemistry Jena 07745(Germany) National Institute of Environmental Research Incheon 22689(Republic of Korea) AgriBio Institute of Climate Change Management Chonnam National UniversityGwangju 61186(Republic of Korea)

Electrical conductivity(EC)of soil-water extracts is commonly used to assess soil ***,its conversion to the EC of saturated soil paste extracts(ECe),the standard measure of soil salinity,is currently required for practical *** many regression models can be used to obtain ECe from the EC of soil-water extracts,the application of a site-specific model to different sites is not straightforward due to confounding soil factors such as soil *** study was conducted to develop a universal regression model to estimate a conversion factor(CF)for predicting EC_(e) from EC of soil-water extracts at a 1:5 ratio(EC_(1:5)),by employing a site-specific soil texture(i.e.,sand content).A regression model,CF=8.9105e^(0.0106sand)/1.2984(r^(2)=0.97,P<0.001),was developed based on the results of coastal saline soil surveys(n=173)and laboratory experiments using artificial saline soils with different textures(n=6,sand content=10%-65%)and salinity levels(n=7,salinity=1-24 dS m^(-1)).Model performance was validated using an independent dataset and demonstrated that EC_(e) prediction using the developed model is more suitable for highly saline soils than for low saline *** feasibility of the regression model should be tested at other *** soil factors affecting EC conversion factor also need to be explored to revise and improve the model through further studies.

关键词： coastal saline soils electrical conductivity prediction reclaimed tideland regression model sand content saturation percentage soil salinity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Gradient Estimation for Demosaicking in a Color Filter Array Image

引用

通讯和计算机（中英文版） 2013年第1期10卷 59-71页

作者： hye-Rin Choi Rae-Hong park Ji won Lee Department of Electronic Engineering Sogang University Seou1121-7 4 2 Korea

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatocellular carcinoma in Budd-Chiari syndrome:A single center experience with long-term follow-up in South Korea

引用

World Journal of Gastroenterology 2012年第16期18卷 1946-1952页

作者： Hana park Jin Young Yoon Kyeong hye park Do Young Kim Sang Hoon Ahn Kwang-Hyub Han Chae Yoon Chon Jun Yong park Department of Internal Medicine Yonsei University College of MedicineSeoul 120-752South Korea Institute of Gastroenterology Yonsei University College of MedicineSeoul 120-752South Korea Liver Cirrhosis Clinical Research Center Seoul 120-752South Korea Brain South Korea 21 Project for Medical Science Seoul 120-752South Korea

AIM:To evaluate long-term clinical course of BuddChiari syndrome(BCS) and predictive factors associated with the development of hepatocellular carcinoma(HCC) and ***:We analyzed 67 patients with BCS between June 1988 and May *** diagnosis of BCS was confirmed by hepatic venous outflow obstruction shown on abdominal ultrasound sonography,computed tomography,magnetic resonance imaging,or *** median follow-up period was 103 ± 156 [interquartile range(IQR)] ***:The median age of the patients was 47 ± 16(IQR) *** diagnosis,54 patients had cirrhosis,25(37.3%) Child-Pugh class A,23(34.3%) Child-Pugh class B,and six(9.0%) patients Child-Pugh class *** the follow-up period,HCC was developed in 17 patients,and the annual incidence of HCC in patients with BCS was 2.8%.Patients in HCC group(n = 17) had higher hepatic venous pressure gradient(HVPG) than those in non-HCC group(n = 50)(21 ± 12 mmHg vs 14 ± 7 mmHg,P = 0.019).The survival rate of BCS patients was 86.2% for 5 years,73.8% for 10 years,and 61.2% for 15 *** patients with BCS and HCC,survival was 79% for 5 years,43.1% for 10 years,and 21.5% for 15 ***:The incidence of HCC in patients with BCS was similar to that in patients with other etiologic cirrhosis in South *** HVPG is expected to provide additional information for predicting HCC development in BCS patients.

关键词： Budd-Chiari syndrome Hepatocellular carcinoma Prognosis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of ZnO Electrodeposited on Carbon Film and Decorated with Metal Nanoparticles for Solar Hydrogen Production

引用

Journal of Materials Science & Technology 2016年第10期32卷 1059-1065页

作者： Young Kwang Kim hye-Jin Seo Soonhyun Kim Sung-Ho Hwang Hyunwoong park Sang Kyoo Lim Division of Nano and Energy Convergence Research Daegu Gyeongbuk Institute of Science and Technology (DGIST) School of Energy Engineering Kyungpook National University

In this study, we prepared horn-like ZnO structures on carbon films（ZnO/CF） by electrodeposition and decorated the ZnO horns with different metals（Ag, Au, and Pt） via photodeposition（M-ZnO/CF）. Using M-ZnO/CF as photocatalysts, we examined ways to enhance solar hydrogen production from various points of view, such as modifying the intrinsic physical properties and thermodynamics of the materials, and varying the chemical environment during M-ZnO/CF fabrication. In particular, we focused on the effects of the carbon film and metals in M-ZnO/CF hybrid photocatalysts on solar hydrogen production. The type of metal nanoparticles is an important factor in solar hydrogen production because the deposition rate and electrical conductivity of each metal affect the proton-water reduction ability.

关键词： Solar hydrogen production ZnO horn Carbon film Metal nanoparticle Electrodeposition

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A feasible route to produce 1.1 GPa ferritic-based low-Mn lightweight steels with ductility of 47%

引用

Journal of Materials Science & Technology 2022年第22期117卷 225-237页

作者： Kwang Kyu Ko Hyo Ju Bae Eun hye park hyeon-Uk Jeong Hyoung Seok park Jae Seok Jeong Jung Gi Kim Hyokyung Sung Nokeun park Jae Bok Seol Department of Materials Engineering and Convergence Technology Center for K-metalGyeongsang National University(GNU)Jinju 52828South Korea School of Materials Science and Engineering Yeungnam UniversityGyeongbuk 38541South Korea Materials Research Team R&D Hyundai MobisYongin 16891South Korea Materials Technology Development Team Doosan Heavy Industries&ConstructionChangwon 51711South Korea

High- and medium-Mn (H/M-Mn) base lightweight steels are a class of ultrastrong structural materials with high ductility compared to their low-Mn counterparts with low strength and poor ***, producing these H/M-Mn materials requires the advanced or high-tech manufacturing techniques, which can unavoidably provoke labor and cost concerns. Herein, we have developed a facilestrategy that circumvents the strength–ductility trade-off in low-Mn ferritic lightweight steels, by employing low-temperature tempering-induced partitioning (LTP). This LTP treatment affords a typical Fe-2.8Mn-5.7Al-0.3C (wt.%) steel with a heterogeneous size-distribution of metastable austenite embeddedin a ferrite matrix for partitioning more carbon into smaller austenite grains than into the larger austenite ones. This size-dependent partitioning results in slip plane spacing modification and lattice strain,which act through dislocation engineering. We ascribe the simultaneous improvement in strength andtotal elongation to both the size-dependent dislocation movement in austenite grains and the controlleddeformation-induced martensitic transformation. The low-carbon-partitioned large austenite grains increase the strength and ductility as a consequence of the combined martensitic transformation andhigh dislocation density-induced hardening and by interface strengthening. Additionally, high-carbonpartitioned small austenite grains enhance the strength and ductility by planar dislocation glide (inthe low strain regime) and by cross-slipping and delayed martensitic transformation (in the high strainregime). The concept of size-dependent dislocation engineering may provide different pathways for developing a wide range of heterogeneous-structured low-Mn lightweight steels, suggesting that LTP maybe desirable for broad industrial applications at an economic cost.

关键词： Low-Mn lightweight steel Carbon partitioning Metastable austenite Dislocation movement

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Benign gallbladder diseases:Imaging techniques and tips for differentiating with malignant gallbladder diseases

引用

World Journal of Gastroenterology 2020年第22期26卷 2967-2986页

作者： Mi hye Yu Young Jun Kim Hee Sun park Sung Il Jung Department of Radiology Konkuk University Medical CenterKonkuk University School of Medicine120-1 Neungdong-roGwangjin-guSeoul 05030South Korea

Benign gallbladder diseases usually present with intraluminal lesions and localized or diffuse wall *** lesions of the gallbladder include gallstones,cholesterol polyps,adenomas,or sludge and polypoid type of gallbladder cancer must subsequently be *** size,stalk width,and enhancement intensity on contrast-enhanced ultrasound and degree of diffusion restriction may help differentiate cholesterol polyps and adenomas from gallbladder *** gallbladder wall thickening is largely due to segmental or focal gallbladder adenomyomatosis,although infiltrative cancer may present *** of Rokitansky-Aschoff sinuses is pivotal in diagnosing *** layered pattern,degree of enhancement,and integrity of the wall are imaging clues that help discriminate innocuous thickening from gallbladder ***-resolution ultrasound is especially useful for analyzing the layering of gallbladder wall.A diffusely thickened wall is frequently seen in inflammatory processes of the ***,it is important to check for coexistent cancer in instances of acute *** used alone is limited in evaluating complicated cholecystitis and often requires complementary computed *** chronic cholecystitis,preservation of a two-layered wall and weak wall enhancement are diagnostic clues for excluding *** resonance imaging in conjunction with diffusion-weighted imaging helps to differentiate xathogranulomatous cholecystitis from gallbladder cancer by identifying the presence of fat and degree of diffusion *** distinctions require a familiarity with typical imaging features of various gallbladder diseases and an understanding of the roles that assorted imaging modalities play in gallbladder evaluations.

关键词： Cholesterol polyp Gallbladder adenoma Adenomyomatosis Cholecystitis Xathogranulomatous cholecystitis Gallbladder cancer Imaging techniques

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：