http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Qiu Lu,Kundrata Robin 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.3
The click-beetle genus Neocsikia Ôhira & Becker, 1972 is newly recorded from Xizang, China upon the discoveries of Neocsikia nepalensis Ôhira & Becker, 1972 and N. xuhaoi Qiu, sp. nov. Neocsikia nepalensis is redescribed based on the type material from Nepal and material collected in Nyalam County, Xizang, China. Neocsikia xuhaoi Qiu, sp. nov. is described based on the material collected in Mêdog County, Xizang, China. Both species are illustrated and their principal diagnostic features are provided. A key to the species of Neocsikia is presented. https://www.zoobank.org/urn:lsid:zoobank.org:pub:1B7F59D5-02BC-4739-9B71-B560DA341FF3
Qiu Lu 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
Two complete mitochondrial genomes of Elateridae, Sinelater perroti (Tetralobinae: Tetralobini) and Sterno campsus coriaceus (Dendrometrinae: Oxynopterini), were sequenced to further understand the characteristics of click-beetle mitogenomes. Comparative genomic analyses showed a high degree of similarity among the two new and other known click-beetle mitogenomic data. The mitogenomes of Elateridae exhibited typical insect gene order and orientation, which contains 13 protein-coding genes (PCGs), 2 ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes and one control region; and showed a high A + T composition (63.1%–76.7%). The mitogenome of Si. perroti exhibited long intergenic nucleotides between tRNA-Trp and tRNA-Cys genes (287 bp) and between tRNA-Asp and atp8 genes (104 bp); while that of St. coriaceus had the compact intergenic and overlapping nucleotides the same as other known Elateridae mitogenomes. The phylogeny of Elateridae was reconstructed based on two datasets of mitochondrial genomes and performed in IQ-TREE and MrBayes. The result showed that Elateridae is divided into six main clades. Tetralobinae was recovered as sister to all remaining elaterid lineages, Oxynopterini was nested in Dendrometrinae.
Dynamic Hand Gesture Trajectory Recognition Based on Block Feature and Skin-Color Clustering
Zhang Qiu-yu,Lv Lu,Lu Jun-chi,Zhang Mo-yi,Duan Hong-xiang 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.12
In recent years, dynamic hand gesture recognition has been a research hotspot of human-computer interaction. Since most existing algorithms contain problems with high computational complexity, poor real-time performance and low recognition rate, which cannot satisfy the need of many practical applications. Moreover, key frames obtained by inter-frame difference degree algorithm contain less information, which leads to less identified species and lower recognition rate. To solve these problems, we present a dynamic hand gesture trajectory recognition method based on the theory of block feature to extract key frames and the skin-color clustering’s hand gesture segmentation. Firstly, this method extracts block feature of degree of difference between frames in hand gesture sequence to select key frames accurately. Secondly, the method based on skin-color clustering is applied to obtain the area of hand gesture after segmenting hand gestures from images. Finally, hidden Markov model (HMM), in which the angle data of hand gesture trajectories are input, is used for modeling and identifying dynamic hand gestures. Experimental results show that the method of key-frame extraction is used to obtain information of dynamic hand gestures accurately, which would improve the recognition rate of dynamic hand gesture recognition and, at the same time, can guarantee the real-time of hand gesture recognition system. The average recognition rate is up to 86.67%, and the average time efficiency is 0.39s.
A Dynamic Gesture Trajectory Recognition Based on Key Frame Extraction and HMM
Zhang Qiu-yu,Lv Lu,Zhang Mo-yi,Duan Hong-xiang,Lu Jun-chi 보안공학연구지원센터 2015 International Journal of Signal Processing, Image Vol.8 No.6
Aiming at changing high computational complexity, underdeveloped real time, low recognition rate of dynamic gesture recognition algorithms, this paper present a real-time dynamic gesture trajectory recognition method based on key frame extraction and HMM. Key frames are selected without keeping track of all the details of one dynamic gesture, which is based on difference degree between frames. The trajectory data stream, sorted by the time-warping algorithm, is used to construct the Hidden Markov Method model of dynamic gesture. Finally, optimal transition probabilities are employed to implement dynamic gesture recognition. The result of this experiment implies that this method has high robustness and real time. The average recognition rate of dynamic gesture (0~9) is up to 87.67%, and average time efficiency is 0.46s.
Hand Gesture Segmentation Method Based on YCbCr Color Space and K-Means Clustering
Zhang Qiu-yu,Lu Jun-chi,Zhang Mo-yi,Duan Hong-xiang,Lv Lu 보안공학연구지원센터 2015 International Journal of Signal Processing, Image Vol.8 No.5
Aiming at the problems that current skin-color detection segmentation technologies have unsatisfied segmentation results under conditions of complex illumination or backgrounds, we present a new method based on YCbCr color space and K-means clustering algorithm for segmentation hand gesture. Firstly, image in RGB color space is converted to YCbCr color space; and then YCbCr color space of image is divided into luminance Y and chrominance Cb and Cr. Lastly, the binary image is achieved by clustering values of chrominance using k-means clustering algorithm, and hand gesture segmentation is completed by conducting morphological process of binary image obtained. The experimental results illustrate that the proposed method can segment hand gestures from complex backgrounds and obtain segmentation results. The phenomena of similar skin color interference and skin color overlapping are solved with this method effectively. In addition, it is robust to illumination condition.
Lu Ming,Li Min,Luo Tao,Li Yongsui,Wang Mingxin,Xue Huashi,Zhang Mengchen,Chen Qiu 대한독성 유전단백체 학회 2023 Molecular & cellular toxicology Vol.19 No.3
Background Treating large-volume bone defects (LVBD) remains a challenge for orthopedics and maxillofacial surgeons globally. Objective The present study was to aimed investigate the role of Beta-naphthofl avone (BNF) a synthetic fl avonoid on differentiation of osteoblast of human adipose derived stem cells. Results BNF at 1 μM showed a signifi cantly increased ALP activity and rate of cell proliferation compared to control on the 3rd, 7th and 14th day. Also, it was observed that, BNF at 1 μM resulted in signifi cantly increased expression of BSP. On the 14th day of treatment, BNF at all the three treatments resulted in increased levels of OCN. Also, extracellular matrix mineralization levels were recorded to be highest for BNF 1 μM. The levels of Runx2 were higher in 1 μM treated group on the 3rd day compared to other, whereas in contrast the levels were lower on the 7th and 14th day compared to control. BNF at all the three treatments caused a signifi cant decrease in levels of pSTAT3, C/EBP-α and PPAR-γ levels. Conclusion BNF treatment resulted in increased diff erentiation of osteoblast of hASCs by targeting STAT3 pathway.
Qiu, Jialing,Lu, Xintao,Ma, Lianxiang,Hou, Chuanchuan,He, Junna,Liu, Bing,Yu, Dongyou,Lin, Gang,Xu, Jiming Asian Australasian Association of Animal Productio 2020 Animal Bioscience Vol.33 No.4
Objective: The objective of this study was to investigate the effects of low doses of organic trace minerals (iron, copper, manganese, and zinc) on productive performance, egg quality, yolk and tissue mineral retention, and fecal mineral excretion of laying hens during the late laying period. Methods: A total of 405 healthy hens (HY-Line White, 50-week-old) were randomly divided into 3 treatments, with 9 replicates per treatment and 15 birds per replicate. The dietary treatments included feeding a basal diet + inorganic trace minerals at commercial levels (CON), a basal diet + inorganic trace minerals at 1/3 commercial levels (ITM), and a basal diet + proteinated trace minerals at 1/3 commercial levels (TRT). The trial lasted for 56 days. Results: Compared to CON, ITM decreased (p<0.05) egg production, daily egg mass, albumen height, eggshell strength, yolk Fe concentration, serum alkaline phosphatase activity and total protein, and increased (p<0.05) egg loss and feed to egg ratio. Whereas with productive performance, egg quality, yolk mineral retention, and serum indices there were no differences (p>0.05) between CON and TRT. The concentrations of Fe and Mn in the tissue and tibia were changed notably in ITM relative to CON and TRT. Both ITM and TRT reduced (p<0.05) fecal mineral excretion compared to CON. Conclusion: These results indicate that dietary supplementation of low-dose organic trace minerals reduced fecal mineral excretion without negatively impacting hen performance and egg quality.