Review of the Macrophya regia group (Hymenoptera: Tenthredinidae) from China with the descriptions of two new species

Ze‐Jian Li,Meng-Meng LIU,Meicai Wei,Chao-dong Zhu 한국곤충학회 2018 Entomological Research Vol.48 No.5

The Macrophya regia group is reviewed and five species are recognized from China, among them two new species, M. acutiserrula Li, Liu & Wei sp. nov. and M. frontalis Li, Liu & Zhu sp. nov., and three known species, M. regia Forsius 1930, M. maculoclypeatina Wei et al. 2003, and M. xiaoi Wei et al. 2003. A key to the Chinese species of the Macrophya regia group are provided.

AUGMENTING WFIRST MICROLENSING WITH A GROUND-BASED TELESCOPE NETWORK

Wei Zhu,Andrew Gould 한국천문학회 2016 Journal of The Korean Astronomical Society Vol.49 No.3

Augmenting the Wide Field Infrared Survey Telescope ({\it WFIRST}) microlensing campaigns with intensive observations from a ground-based network of wide-field survey telescopes would have several major advantages. First, it would enable full two-dimensional (2-D) vector microlens parallax measurements for a substantial fraction of low-mass lenses as well as planetary and binary events that show caustic crossing features. For a significant fraction of the free-floating planet (FFP) events and all caustic-crossing planetary/binary events, these 2-D parallax measurements directly lead to complete solutions (mass, distance, transverse velocity) of the lens object (or lens system). For even more events, the complementary ground-based observations will yield 1-D parallax measurements. Together with the 1-D parallaxes from \wfirst~alone, they can probe the entire mass range $M\gtrsim M_\oplus$. For luminous lenses, such 1-D parallax measurements can be promoted to complete solutions (mass, distance, transverse velocity) by high-resolution imaging. This would provide crucial information not only about the hosts of planets and other lenses, but also enable a much more precise Galactic model. Other benefits of such a survey include improved understanding of binaries (particularly with low mass primaries), and sensitivity to distant ice-giant and gas-giant companions of \emph{WFIRST} lenses that cannot be detected by \emph{WFIRST} itself due to its restricted observing windows. Existing ground-based microlensing surveys can be employed if \emph{WFIRST} is pointed at lower-extinction fields than is currently envisaged. This would come at some cost to the event rate. Therefore the benefits of improved characterization of lenses must be weighed against these costs.

중국어 ‘要’와 한국어 ‘-겠-’의 양태적 용법에 대한 비교 연구

ZHU WEI 한중인문학회 2012 한중인문학연구 Vol.36 No.-

This paper reviewed the modal expression systems of Chinese and Korean,especially contrasted the modal expressions between Chinese ‘yao’ and Korean ‘-gess-’ , this paper aims to find the difference between them, So far the contrastive study between Chinese and Korean Syntax elements has continued,but the contrastive study on the modal expression is still rare. For Chinese students, finding the similarities and differences of the modal meaning between Chinese ‘yao’ and Korean ‘-gess-’ has an important education significance. In this paper, First reviewed its meaning between Chinese ‘yao’ and Korean ‘-gess-’. Then illustrated the Gammarticalization, the Independence, the Position, the Negative Form, the Relationship with Combination of Adverb, the Relationship with Time Category, the Level of Subject to contrast its meaning and function. and it has the very vital significance to investigate the similarities and differences. 본고는 중국어와 한국에 공통적으로 존재하는 양태표현을 중심으로 비교분석을 시도해 보고자 했다. 지금까지 중국어와 한국어의 문법요소를 대상으로 하는 비교분석은 계속 연구해왔지만 양태표현의 요소를 중심으로 한 비교분석 논의는 그리 많지 않다. 그러나 중국인 학습자에게 중국어의 ‘要’와 한국어의 ‘-겠-’의 양태적 의미를 살펴보고 이들이 갖는 문법적 특성의 공통점과 차이점을 찾아내는 것은 교육적 의미가 크다고 본다. 따라서 본고에서는 우선 중국어의 ‘要’와 한국어의 ‘-겠-’의 양태적 의미를 대비시켜 문법화과정, 독립성 유무, 사용 위치, 부사와의 결합관계, 부정형식, 시간범주와의 결합관계, 그리고 주체생명도 등의 측면에서 중국어 ‘要’와 한국어 ‘-겠-’의 양태적 의미와 기능을 비교 분석했다. 교육적 측면에서 볼 때 중국인 학습자에게 큰 도움이 될 것이라고 믿는다. 특히 중국인한국어 학습자들에게 중국어 ‘要’와 한국어‘-겠-’의 형식적 의미적 대응관계를 확인시키고 이들이 갖는 문법적 특성의 공통점과 차이점을 인식시키는 것은 교육적 차원에서도 중대한 의의를 가질 것이다.

Transcriptome analysis of colchicine-induced tetraploid Kiwifruit leaves with increased biomass and cell size

Zhu Yanyan,Tang Wei,Tang Xiaofeng,Wang Lihuan,Li Wei,Zhang Qian,Li Mingzhang,Fang Congbing,Liu Yongsheng,Wang Songhu 한국식물생명공학회 2021 Plant biotechnology reports Vol.15 No.5

Colchicine-induced polyploidization has been extensively utilized in plant-breeding programs to increase biomass and overall yield of various crop species. Chromosome doubling usually increases the plant size and cell size. However, the underly- ing mechanisms remain elusive. In this study, we showed that 0.1% colchicine is an optimized concentration for inducing tetraploidization of Actinidia chinensis var. chinensis ‘Hongyang’, a commercially important diploid kiwifruit cultivar. The tetraploid plants showed increased plant height, leaf size, and biomass, as compared with the corresponding diploid plants. Scanning electron microscopy and histological analysis indicated that the leaf cell size was significantly increased in the tetraploid plants. Our further transcriptome analysis revealed the 5922 differentially expressed genes between the diploid and tetraploid plants. Gene Ontology analysis enriched the cell wall-related genes, including the pectin methylesterases (PMEs) and expansins (EXPs), both of which play a critical role in cell wall loosening and extension. The increased expression of PME and EXP genes might contribute to the increased cell size in the tetraploid plants. Together, our work indicated that tetraploidization increases the organ and cell size in kiwifruit, possibly by enhancing the cell wall extensibility.

Toward a Galactic Distribution of Planets. I. Methodology and Planet Sensitivities of the 2015 High-cadence<i>Spitzer</i>Microlens Sample

Zhu, Wei,Udalski, A.,Novati, S. Calchi,Chung, S.-J.,Jung, Y. K.,Ryu, Y.-H.,Shin, I.-G.,Gould, A.,Lee, C.-U.,Albrow, M. D.,Yee, J. C.,Han, C.,Hwang, K.-H.,Cha, S.-M.,Kim, D.-J.,Kim, H.-W.,Kim, S.-L.,Ki American Institute of Physics 2017 The Astronomical journal Vol.154 No.5

<P>We analyze an ensemble of microlensing events from the 2015 Spitzer microlensing campaign, all of which were densely monitored by ground-based high-cadence survey teams. The simultaneous observations from Spitzer and the ground yield measurements of the microlensing parallax vector pi(E), from which compact constraints on the microlens properties are derived, including less than or similar to 25% uncertainties on the lens mass and distance. With the current sample, we demonstrate that the majority of microlenses are indeed in the mass range of M dwarfs. The planet sensitivities of all 41 events in the sample are calculated, from which we provide constraints on the planet distribution function. In particular, assuming a planet distribution function that is uniform in log q, where q is the planet-to-star mass ratio, we find a 95% upper limit on the fraction of stars that host typical microlensing planets of 49%, which is consistent with previous studies. Based on this planet-free sample, we develop the methodology to statistically study the Galactic distribution of planets using microlensing parallax measurements. Under the assumption that the planet distributions are the same in the bulge as in the disk, we predict that similar to 1/3 of all planet detections from the microlensing campaigns with Spitzer should be in the bulge. This prediction will be tested with a much larger sample, and deviations from it can be used to constrain the abundance of planets in the bulge relative to the disk.</P>

한국어 ‘的’자 구성과 중국어 대응어에 대한 연구

ZHU WEI 한중인문학회 2017 한중인문학연구 Vol.57 No.-

This paper focuses on the difference between Korean ‘-jeok’ and the Chinese ‘de’.and aim to research the effective education method through the comparison between Korean suffix ‘-jeok’ and Chinese character ‘de’ appeared in vocabulary for learning Korean or Chinese. According to the grammar characteristics of ‘N₁+-적/的+N₂’ there was a great difference between ‘-joek’ and ‘de’ in Korean and Chinese. This paper analyzed the structure of ‘-jeok’ and ‘de’ and compared the usage of suffix ‘-jeok’ with the auxiliary ‘de’. It concludes the reasons which caused the formation of syntaxes and semantics differences between ‘-jeok’ and ‘de’ by analyzing their origins and historical evolvements comprehensively. In the end, There is a limit that was not the verification of education methods. However, there is significant that we have discussed the similarities and differences between the ‘-jeok’ in Korean and ‘de’ in Chinese through the contrast method. It is believed that this study will ultimately help the Korean Learner understand and use the Korean expression of ‘-jeok’ when they learn the Korean language. At the same time it can also help the Chinese Learner master the usage of ‘de’. 한국어 어휘 중 출현빈도가 높은‘적’자 구성의 용법과 특성에 대한 분석이 다양하게 제기되고 있다. 지금까지 형태론적 차원에서 접미사 ‘-적’에 대한 연구와 어휘론적 차원에서 ‘-적’ 파생어에 대한 연구를 활발하게 진행해 왔다. 본고에서 한국어의‘-적’자 구성과 중국어의 대응 양상을 살펴보고 이들이 갖는 문법적 특성을 밝히고 그들의 공통점과 차이점을 찾아내고자 한다. 본고는 한국어 ‘적’자 구성을 연구 대상으로 삼고 다차원에서의 특성을 고찰할 것이다. 우선‘적’자 구성의 정체성, 즉 문법 범주 설정 문제를 놓고 각종 쟁점에 대한 검토 작업을 통해재정립할 것이다. 그리고 한국어 ‘-적’의 기원과 중국어 ‘的’의 기원, ‘적’자 구성 유형과 중국어 ‘적’자 구성 유형 간의 대조, 한국어 ‘적’자 부정 형식과 중국어 대응어의 부정형식 등 면에서 대응 양상을 살펴볼 것이다. 이러한 대조를 통해 양국 언어 중에 공통적으로 존재하는 ‘적’ 자 구성의 특성을 밝히고자 한다.

Target engagement of ginsenosides in mild cognitive impairment using mass spectrometry-based drug affinity responsive target stability

Zhu, Zhu,Li, Ruimei,Qin, Wei,Zhang, Hantao,Cheng, Yao,Chen, Feiyan,Chen, Cuihua,Chen, Lin,Zhao, Yunan The Korean Society of Ginseng 2022 Journal of Ginseng Research Vol.46 No.6

Background: Mild cognitive impairment (MCI) is a transitional condition between normality and dementia. Ginseng is known to have effects on attenuating cognitive deficits in neurogenerative diseases. Ginsenosides are the main bioactive component of ginseng, and their protein targets have not been fully understood. Furthermore, no thorough analysis is reported in ginsenoside-related protein targets in MCI. Methods: The candidate protein targets of ginsenosides in brain tissues were identified by drug affinity responsive target stability (DARTS) coupled with label-free liquid chromatography-mass spectrometry (LC-MS) analysis. Network pharmacology approach was used to collect the therapeutic targets for MCI. Based on the above-mentioned overlapping targets, we built up a proteineprotein interaction (PPI) network in STRING database and conducted gene ontology (GO) enrichment analysis. Finally, we assessed the effects of ginseng total saponins (GTS) and different ginsenosides on mitochondrial function by measuring the activity of the mitochondrial respiratory chain complex and performing molecular docking. Results: We screened 2526 MCI-related protein targets by databases and 349 ginsenoside-related protein targets by DARTS. On the basis of these 81 overlapping genes, enrichment analysis showed the mitochondria played an important role in GTS-mediated MCI pharmacological process. Mitochondrial function analysis showed GTS, protopanaxatriol (PPT), and Rd increased the activities of complex I in a dose-dependent manner. Molecular docking also predicted the docking pockets between PPT or Rd and mitochondrial respiratory chain complex I. Conclusion: This study indicated that ginsenosides might alleviate MCI by targeting respiratory chain complex I and regulating mitochondrial function, supporting ginseng's therapeutic application in cognitive deficits.

5-Formylhonokiol exerts anti-angiogenesis activity $via$ inactivating the ERK signaling pathway

Zhu, Wei,Fu, Afu,Hu, Jia,Wang, Tianen,Luo, Youfu,Peng, Ming,Ma, Yinghua,Wei, Yuquan,Chen, Lijuan Korean Society for Biochemistry and Molecular Bion 2011 Experimental and molecular medicine Vol.43 No.3

Our previous report has demonstrated that 5-formylhonokiol (FH), a derivative of honokiol (HK), exerts more potent anti-proliferative activities than honokiol in several tumor cell lines. In present study, we first explored the antiangiogenic activities of 5-formylhonokiol on proliferation, migration and tube formation of human umbilical vein endothelial cells (HUVECs) for the first time $in$ $vitro$. Then we investigated the $in$ $vivo$ antiangiogenic effect of 5-formylhonokiol on zebrafish angiogenesis model. In order to clarify the underlying molecular mechanism of 5-formylhonokiol, we investigated the signaling pathway involved in controlling the angiogenesis process by western blotting assay. Wound-healing results showed that 5-formylhonokiol significantly and dose-dependently inhibited migration of cultured human umbilical vein enthothelial cells. The invasiveness of HUVEC cells was also effectively suppressed at a low concentration of 5-formylhonokiol in the transwell assay. Further F-actin imaging revealed that inhibitory effect of 5-formylhonokiol on invasion may partly contribute to the disruption of assembling stress fiber. Tube formation assay, which is associated with endothelial cells migration, further confirmed the anti-angiogenesis effect of 5-formylhonokiol. In $in$ $vivo$ zebrafish angiogenesis model, we found that 5-formylhonokiol dose-dependently inhibited angiogenesis. Furthermore, western blotting showed that 5-formylhonokiol significantly down-regulated extracellular signal-regulated kinase (ERK) expression and inhibited the phosphorylation of ERK but not affecting the total protein kinase B (Akt) expression and related phosphorylation, suggesting that 5-formylhonokiol might exert anti-angiogenesis capacity $via$ down-regulation of the ERK signal pathway. Taken together, these data suggested that 5-formylhonokiol might be a viable drug candidate in antiangiogenesis and anticancer therapies.

Optimization design and dynamic stability analysis of 3-DOF cable-driven parallel robot with an elastic telescopic rod

Wei Zhu,Jiahong Liu,Kuanxiang Shi,Fei Qi,Huiping Shen,Zhu Xu,Zhilong Ma 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.9

This paper proposes a three degree-of-freedoms (DOFs) cable-driven parallel robot (CDPR), which is actuated by three groups of parallel cables and tensioned by an elastic telescopic rod with a passive spring. Firstly, the architecture of the robot is briefly illustrated with emphasis on the three parallelogram arrangements of the cables and composition of elastic telescopic rod structure. This robot has larger workspace and greater tension than previous under-constrained CDPRs. Secondly, the kinematic and dynamic models of the robot are established. On this basis, the parameters of the spring installed in the telescopic rod are optimized and determined considering both the acceleration and cable force through using the differential evolution (DE) algorithm. Thirdly, dynamic stability analysis of the robot under impulsive disturbances is performed according to the Gauss principle of least constraint (GPLC). The results of a simulation case show that this robot has better dynamic stability in comparison with conventional under-constraint CDPR because of the presence of the elastic telescopic rod. The measurement results in the workspace are obtained through dynamic simulation. Finally, the experiments are performed based on numerical simulation. The feasibility of the CDPR is verified via the experiments and simulations.

Key Point Detection in 3D Reconstruction Based On Human-Computer Interaction

Zhu Shi Wei,Zhang Xiao Guo,Lv Jia Dong,Wang Qing 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.1

Aiming at solving problem of points’ redundancy caused by full automatically detecting points and the problem of large workload caused by picking all points manually, I advanced a new method of picking points which is based on Human-Computer Interaction in our 3D reconstruction platform after automatically detecting points. We first detected and matched points automatically and got the homograph matrix between two images, then projected points which were picked by hand on the one image to the other image, at last we would search the interesting feature points in the neighborhood of corresponding points in the two images. Experiments have shown that this method decreases the redundancy brought by large number of points and successfully finds the important feature points, so it lays a good foundation for 3D reconstruction.