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Sexual dimorphism and sex-differential migration of Little Buntings(Emberiza pusilla)at an East Asian stopover site

Avian Research 2022年第1期13卷 87-93页

作者： Sook-young Cho hyun-young nam Se-young Park Chang-Yong Choi Bird Research Center Korea National Park Research InstituteJeonnam58863Republic of Korea Division of Zoology Honam National Institute of Biological ResourcesMokpo58762Republic of Korea School of Biological Sciences College of Natural SciencesSeoul National UniversitySeoul08826Republic of Korea Department of Agriculture Forestry and BioresourcesCollege of Agriculture and Life SciencesSeoul National UniversitySeoul08826Republic of Korea

Sex differences in morphology provide key information for understanding a species'morphological adaptations in relation to the evolution of sexual *** migratory birds,morphological traits have adapted to long-distance travel,and sexual dimorphism is typically related to sex-differential migration *** Buntings(Emberiza pusilla)have one of the longest migrations and are the least dichromatic species among the Emberiza *** this study,we measured sexual size dimorphism and sexual dichromatism of Little Buntings in relation to the spring arrival dates at a stopover site in *** length was the most important predictor for identifying sex;the wings of males were longer than those of *** also had a significantly stronger chestnut color of the head feathers than females,but this color difference was more prominent in the spring than in the *** arrived earlier than females by four *** dates correlated with both size and color,but unlike other bunting species previously studied in the same area,there was no clear sex-differential trend in the relationship between arrival date and morphological *** differences in the degree of sexual dichromatism suggest that chestnut plumage coloration can be used as a social or sexual signal of males in the breeding *** correlation of size and color to early arrival regardless of sex may indicate that a preference for assortative mating exists or that a sex-differential migration strategy is not clearly defined in the early stages of northward *** findings on the sexual dimorphism of Little Buntings provide insight into the evolution of the sex-differential migration of buntings in the East Asian Flyway.

关键词： Digital photography Emberiza pusilla Little Bunting Protandrous migration Sexual dichromatism Sexual dimorphism

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A Rapid Adaptation Approach for Dynamic Air‑Writing Recognition Using Wearable Wristbands with Self‑Supervised Contrastive Learning

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Nano-Micro Letters 2025年第2期17卷 417-431页

作者： Yunjian Guo Kunpeng Li Wei Yue nam‑young Kim Yang Li Guozhen Shen Jong‑Chul Lee Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897South Korea Radio Frequency Integrated Circuit(RFIC)Bio Centre Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Engineering Kwangwoon UniversitySeoul 01897South Korea School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China State Key Laboratory of Integrated Chips and Systems Fudan UniversityShanghai 200433People’s Republic of China School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081People’s Republic of China

Wearable wristband systems leverage deep learning to revolutionize hand gesture recognition in daily *** existing approaches that often focus on static gestures and require extensive labeled data,the proposed wearable wristband with selfsupervised contrastive learning excels at dynamic motion tracking and adapts rapidly across multiple *** features a four-channel sensing array composed of an ionic hydrogel with hierarchical microcone structures and ultrathin flexible electrodes,resulting in high-sensitivity capacitance *** wireless transmission from a Wi-Fi module,the proposed algorithm learns latent features from the unlabeled signals of random wrist ***,only few-shot labeled data are sufficient for fine-tuning the model,enabling rapid adaptation to various *** system achieves a high accuracy of 94.9%in different scenarios,including the prediction of eight-direction commands,and air-writing of all numbers and *** proposed method facilitates smooth transitions between multiple tasks without the need for modifying the structure or undergoing extensive task-specific *** utility has been further extended to enhance human–machine interaction over digital platforms,such as game controls,calculators,and three-language login systems,offering users a natural and intuitive way of communication.

关键词： Wearable wristband Self-supervised contrastive learning Dynamic gesture Air-writing Human-machine interaction

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Reciprocal inhibition of expression between RAV1 and BES1 modulates plant growth and development in Arabidopsis

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Journal of Integrative Plant Biology 2023年第5期65卷 1226-1240页

作者： Dami Yang hyun-young Shin hyun Kyung Kang Yun Shang So young Park Dong-Hoon Jeong Kyoung Hee nam Department of Biological Sciences Sookmyung Women's UniversitySeoul 04310Republic of Korea Research Institute for Women's HealthSookmyung Women's UniversitySeoul 04310Republic of Korea Department of Life Science and Multidisciplinary Genome Institute Hallym UniversityChuncheon 24252Republic of Korea Present Address:Peking University Institute of Advanced Agricultural ScienceWeifang 261325China

RAV1(Related to ABI3/VP1)is a plant-specific B3 and AP2 domain-containing transcription factor that acts as a negative regulator of growth in many plant *** expression of RAV1 is downregulated by brassinosteroids(BRs);large-scale transcriptome analyses have shown that the expression of RAV1 was previously targeted by BRI1-EMS-SUPPRESOR1(BES1)and BRASSINAZOLE-RESISTANT1(BZR1),which are critical transcription factors for the BR-signaling *** RAV1-overexpressing transgenic plants,we showed that RAV1 overexpression reduced the BR signaling capacity,resulting in the downregulation of BR biosynthetic genes and BES1 ***,we demonstrated that BES1,not BZR1,is directly bound to the RAV1 promoter and repressed RAV1 expression,and vice versa;RAV1 is also bound to the BES1 promoter and repressed BES1 *** mutual inhibition was specific to RAV1 and BES1 because RAV1 exhibited binding activity to the BZR1 promoter but did not repress BZR1 *** observed that constitutively activated BR signaling phenotypes in bes1-D were attenuated by the repression of endogenous BES1 expression in transgenic bes1-D plants overexpressing ***-sequencing analysis of RAV1-overexpressing transgenic plants and bes1-D mutant plants revealed differentially expressed genes by RAV1 and BES1 and genes that were oppositely co-regulated by RAV1 and ***1 and BES1 regulated different transcriptomes but co-regulated a specific set of genes responsible for the balance between growth and *** results suggested that the mutual inhibitory transcriptional activities of RAV1 and BES1 provide fine regulatory mechanisms for plant growth and development.

关键词： BES1 growth modulation RAV1 transcriptional regulation

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Effect of Pd content on crystallization and shape memory properties of Ti-Ni-Pd thin films

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International Journal of Smart and Nano Materials 2011年第1期2卷 9-21页

作者： Hee young Kim Yimin Yuan Tae-hyun nam Shuichi Miyazaki Institute of Materials Science University of TsukubaTsukubaIbaraki 305-8573Japan School of Materials Science and Engineering&ERI Gyeongsang National University900 GazwadongJinjuGyeongnam 660-701Korea

The Pd content dependence of the crystallization process of Ti–Ni–(19.1–35.3)Pd(at.%)thin films fabricated by a sputter-deposition method was ***–Ni–(19.1–26.1)Pd(at.%)as-deposited thin films were found to be amorphous,whereas Ti–Ni–(29.1–35.3)Pd(at.%)thin films were crystalline in the as-deposited *** the crystallization temperature and activation energy for the crystallization of the amorphous thin films decrease with increasing Pd *** shape memory effect was confirmed in the in situ crystallized thin *** finer grain size in the in situ crystallized thin film results in a higher critical stress for slip and a smaller recovery strain when compared with the thin film crystallized by post annealing.

关键词： shape memory alloy thin film martensitic phase transformation crystallization sputtering

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Bamboo salt suppresses skin inflammation in mice with 2, 4-dinitrofluorobenzene-induced atopic dermatitis

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Chinese Journal of Natural Medicines 2018年第2期16卷 97-104页

作者： Myoung-schook Yoou Sun-young nam Kyoung Wan Yoon hyun-Ja Jeong hyung-Min Kim Department of Pharmacology College of Korean Medicine Kyung Hee University Department of Biotechnology Hoseo University Department of Food Science & Technology and Research Institute for Basic Science Hoseo University

Bamboo salt(BS) is a traditional Korean food, and has been reported to have anti-cancer, anti-inflammatory, and anti-metastatic effects. However, the anti-atopic dermatitis(AD) activity of BS has not been described yet. In the present study, we examined the preventive effect of BS on AD. The effect of oral administration of BS was tested in a 2, 4-dinitrofluorobenzene(DNFB)-induced AD animal model, by histological analysis, enzyme-linked immunosorbent assay, reverse transcription-polymerase chain reaction, caspase-1 assay, and Western blotting analysis. BS administration reduced the total clinical severity and scratching frequencies, compared with the AD group. In the serum of DNFB-induced AD mice, the levels of IgE, histamine, thymic stromal lymphopoietin(TSLP), interleukin(IL)-5, and IL-13 were significantly reduced by BS treatment. BS significantly reduced the protein and mRNA expression of TSLP, IL-6, and tumor necrosis factor-α in the AD skin lesions. BS markedly reduced the infiltration of inflammatory cells. Furthermore, the activation of caspase-1 was reduced by BS in the AD skin lesions. Our results suggested that BS should be considered as a candidate treatment for allergic inflammatory diseases including AD.

关键词： Bamboo salt Atopic dermatitis Thymic stromal lymphopoietin Caspase-1

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Clinical features of gastric adenoma detected within 3 years after negative screening endoscopy in Korea

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Gastroenterology Report 2023年第1期11卷 406-411页

作者： hyun young Kim Department of Internal Medicine Seoul National University Bundang HospitalSeongnam-siGyeonggi-doKorea

Background:Early detection and management of gastric adenoma are important for preventing gastric *** present study aimed to evaluate the predictors of missed gastric adenoma on screening endoscopy in Korea and identify the risk factors associated with interval precancerous gastric ***:All cases of gastric adenomas diagnosed via screening endoscopy between 2007 and 2019 were *** them,those who had undergone endoscopy within 3 years were included in the present *** gastric adenoma was defined as gastric adenoma diagnosed within 3 years after negative screening ***:In total,295 cases of gastric adenoma were *** these,95(32.2%)were missed gastric adenoma cases(mean age,60.6 years;average interval between final and index endoscopies,12.6months);the remaining 200(67.8%)were newly detected adenoma *** analysis revealed thatmale sex,endoscopist experience,observation time,and presence of gastric intestinalmetaplasia(pathologically proven)were associated with missed gastric *** analysis revealed that gastric intestinal metaplasia(odds ratio[OR],2.736;95%confidence interval[CI],1.320–5.667;P=0.007)and shorter observation time of the index screening endoscopy(B,0.011;OR,0.990;95%CI,0.986–0.993;P<0.001)were independent risk factors for missed gastric *** optimal cut-off for the observation time for detecting gastric adenoma was 3.53minutes(area under curve,0.738;95%CI,0.677–0.799;P<0.001).Conclusions:Gastric intestinal metaplasia is an indication of missed gastric ***,careful inspection of gastric mucosa with gastric intestinal metaplasia and proper observation time can lower the possibility of missing the gastric adenoma during screening.

关键词： gastric adenoma screening endoscopy gastric intestinal metaplasia observation time

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Sorption enhanced catalytic CF4 hydrolysis with a three-stage catalyst-adsorbent reactor

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Frontiers of Chemical Science and Engineering 2017年第4期11卷 537-544页

作者： Han, Jae-Yun Kim, Chang-hyun nam, Sung-Chan Ryi, Shin-Kun Lee, Boreum Lim, Hankwon Jung, Ho-young Lee, Kwan-young Korea Inst Energy Res Adv Mat & Devices Lab Daejeon 34129 South Korea Catholic Univ Daegu Dept Adv Mat & Chem Engn Gyeongbuk 38430 South Korea Chonnam Natl Univ Dept Environm & Energy Engn Gwangju 61186 South Korea Korea Univ Dept Chem & Biol Engn Seoul 136701 South Korea

In this study, we developed a three-stage catalyst-adsorbent reactor for the catalytic hydrolysis of CF4. Each stage is composed of a catalyst bed followed by an adsorbent bed using Ca（OH）2 to remove HF. The three stages are connected in series to enhance the hydrolysis of CF4 and eliminate a scrubber to dissolve HF in water at the same time. With a 10 wt-% Ce/AlaO3 catalyst prepared by the incipient wetness method using boehmite and a granular calcium hydroxide as an adsorbent, the CF4 conversion in our proposed reactor was 7%-23% higher than that in a conventional single-bed catalytic reactor in the temperature range of 923-1023 K. In addition, experimental and numerical simulation （Aspen HYSYS） results showed a reasonable trend of increased CF4 conversion with the adsorbent added and these results can be used as a useful design guideline for our newly proposed multistage reactor system.

关键词： PFCs catalytic hydrolysis calcium hydro-xide sorption enhanced process simulation

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Reliability, Accuracy, and Use Frequency of Evaluation Methods for Amount of Tongue Coating

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Chinese Journal of Integrative Medicine 2019年第5期25卷 378-385页

作者： Su-Ryun Kim Dong-hyun nam Department of Biofunctional Medicine and Diagnosis College of Korean MedicineSangji UniversityWonju 26339Republic of Korea

Objective: To classify the evaluation methods for amount of tongue coating(TC) and investigate their reliability, accuracy, and frequency of use. Methods: Articles published from 1985 to 2015 were searched for evaluation methods for the amount of TC in PubMed and the Cochrane Library. Only clinical researches were included except protocol articles. The methods were classi?ed according to their characteristics. Results: Finally,113 articles were selected. The evaluation method for the amount of TC from the articles was classi?ed into 4 types: intuitive, specificative, computerized, and weighing TC. The reliability in the intuitive and specificative methods(κ=0.33–0.92) showed varying levels among the studies. In general, the amount of TC calculated by the speci?cative method(Spearman's r=0.68–0.80) was more strongly related to the directly measured value than to the value estimated by the computerized method(Pearson's r=0.442). The number of articles published on this topic has increased consistently, and the speci?cative method was the most frequently used. Despite the higher reliability of the computerized method, it has not been widely used. Conclusions: The high prevalence of the speci?cative method would continue in clinical practice because of its convenience and accuracy. However,to establish higher reliability, the limitation of the subjectivity of the assessors should be overcome through calibration training. In the computerized method, novel algorithms are needed to obtain a higher accuracy so that it can help the practitioners con?dently estimate the amount of TC.

关键词： tongue coating evaluation methods reliability accuracy frequency

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Void defect detection in ball grid array X-ray images using a new blob filter

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Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第11期13卷 840-849页

作者： Shao-hu PENG hyun Do nam Department of Electronics and Electrical Engineering Dankook University

Ball grid arrays (BGAs) have been used in the production of electronic devices/assemblies because of their advantages of small size, high I/O port density, etc. However, BGA voids can degrade the performance of the board and cause failure. In this paper, a novel blob filter is proposed to automatically detect BGA voids presented in X-ray images. The proposed blob filter uses the local image gradient magnitude and thus is not influenced by image brightness, void position, or component interference. Different sized average box filters are employed to analyze the image in multi-scale, and as a result, the proposed blob filter is robust to void size. Experimental results show that the proposed method obtains void detection accuracy of up to 93.47% while maintaining a low false ratio. It outperforms another recent algorithm based on edge detection by 40.69% with respect to the average detection accuracy, and by 16.91% with respect to the average false ratio.

关键词： Ball grid array (BGA) X-ray Defect detection Blob detection Void detection

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Stud welding for fixation of cryogenic insulation of membrane tanks in LNG ship building

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中国有色金属学会会刊：英文版 2009年第B09期19卷 271-275页

作者： Jeong-Soo LEE young-Soo RYU nam-In KIM Bong-Joon KIM Yoo-Kyung KIM Myung-hyun KIM Hanjin Heavy Industries & Construction Co. Ltd Department of Naval Architecture and Ocean Engineering Pusan National University

The support plates including all of the inner hulls such as E grade steel, weld seams and SUS304L were considered to establish the optimal stud welding condition in LNG ship building. The stainless steel plate was especially applied to the bracket on the liquid dome. The polished and etched surfaces of the welded stud and support plate were examined if the bead was properly formed. With the micrographic examination, the fusion boundary of metal weld zone formed by stud welding was analyzed to optimize the welding parameters. And also the analysis of the unacceptable welding faults such as cold and hot weld were performed. The mechanical tests such as tensile tests and bending tests were carried out to reveal any abnormal variation in the relationship of process parameters and the strength.

关键词：螺柱焊接 LNG船绝缘膜优化工艺参数低温坦克不锈钢板最佳条件

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