http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
A New Histogram Based Shape Descriptor in Image Retrieval
Ying Guo,Siquan Yu 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.4
A shape based descriptor in image retrieval is proposed in this paper. It is focused on developing soft computing efficiency and novelty in image processing. The algorithm calculates a histogram based on the shape descriptor, representing texture feature of an image at high level (object oriented) effectively. By integrating the algorithms in key point detector with shape descriptor, the new method works fairly well compared with the state-of-the-art performance. The new detector detects relationships among key points, regardless of other pixels. That adds robustness to a large extent. Not only spatial relationships, but also variations in texture information are included in the descriptor as well. Structuring elements’ description (SED) and a set of overall texture descriptors in an image (short for TXT) are adopted for comparison. Experiments show that the new method performs the best with the 0.25 higher than the other two methods in robustness and accuracy. The new feature is flexible in multi-situations for different objects of interest.
Multiparty Quantum Secret Sharing of Quantum States Using Entanglement States
Ying, Guo,Da-Zu, Huang,Gui-Hua, Zeng,Ho, Lee Moon Science Press 2008 CHINESE PHYSICS LETTERS Vol.25 No.1
<P>A multi-partite-controlled quantum secret sharing scheme using several non-orthogonal entanglement states is presented with unconditional security. In this scheme, the participants share the secret quantum state by exchanging the secret polarization angles of the disordered travel particles. The security of the secret quantum state is also guaranteed by the non-orthogonal multi-partite-controlled entanglement states, the participants' secret polarizations, and the disorder of the travelling particles. Moreover, the present scheme is secure against the particle-number splitting attack and the intercept-and-resend attack. It may be still secure even if the distributed quantum state is embedded in a not-so-weak coherent-state pulse.</P>
Secure deterministic communication scheme based on quantum remote state preparation
Ying, Guo,Zhi-Gang, Chen,Gui-Hua, Zeng GORDON AND BREACH 2007 CHINESE PHYSICS -BEIJING- Vol.16 No.9
<P>Based on the techniques of the quantum remote state preparation via a deterministic way, this paper proposes a quantum communication scheme to distribute the secret messages in two phases, i.e., the carrier state checking phase and the message state transmitting phase. In the first phase, the secret messages are encoded by the sender using a stabilizer quantum code and then transmitted to the receiver by implementing three CNOT gates. In the second phase, the communicators check the perfectness of the entanglement of the transmitted states. The messages can be distributed to the receiver even if some of the transmitted qubits are destroyed.</P>
( Ying Guo ),( Xiaoyue Kang ),( Qinghe Han ),( Jingjing Wang ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.10
Node localization is the basic task of underwater wireless sensor networks (UWSNs). Most of the existing underwater localization methods rely on ranging accuracy. Due to the special environment conditions in the ocean, beacon nodes are difficult to deploy accurately. The narrow bandwidth and high delay of the underwater acoustic communication channel lead to large errors. In order to reduce the ranging error and improve the positioning accuracy, we propose a localization algorithm based on ranging correction and inertial coordination. The algorithm can be divided into two parts, Range Correction based Localization algorithm (RCL) and Inertial Coordination based Localization algorithm (ICL). RCL uses the geometric relationship between the node positions to correct the ranging error and obtain the exact node position. However, when the unknown node deviates from the deployment area with the movement of the water flow, it cannot communicate with enough beacon nodes in a certain period of time. In this case, the node uses ICL algorithm to combine position data with motion information of neighbor nodes to update its position. The simulation results show that the proposed algorithm greatly improves the positioning accuracy of unknown nodes compared with the existing localization methods.
Fast DFT Matrices Transform Based on Generalized Prime Factor Algorithm
Ying Guo,Yun Mao,박동선,이문호 한국통신학회 2011 Journal of communications and networks Vol.13 No.5
Inspired by fast Jacket transforms, we propose simple factorization and construction algorithms for the M-dimensional discrete Fourier transform (DFT) matrices underlying generalized Chinese remainder theorem (CRT) index mappings. Based on successive coprime-order DFT matrices with respect to the CRT with recursive relations, the proposed algorithms are presented with simplicity and clarity on the basis of the yielded sparse matrices. The results indicate that our algorithms compare favorably with the direct-computation approach.
RNAi-Mediated Gene Silencing of Trcot1 Induces a Hyperbranching Phenotype in Trichoderma reesei
Fei Gao,Mengzhu Li,Weiquan Liu,Yingguo Bai,Tu Tao,Yuan Wang,Jie Zhang,Huiying Luo,Bin Yao,Huoqing Huang,Xiaoyun Su 한국미생물·생명공학회 2020 Journal of microbiology and biotechnology Vol.30 No.2
Trichoderma reesei is the major filamentous fungus used to produce cellulase and there is huge interest in promoting its ability to produce higher titers of cellulase. Among the many factors affecting cellulase production in T. reesei, the mycelial phenotype is important but seldom studied. Herein, a close homolog of the Neurospora crassa COT1 kinase was discovered in T. reesei and designated TrCOT1, which is of 83.3% amino acid sequence identity. Functional disruption of Trcot1 in T. reesei by RNAi-mediated gene silencing resulted in retarded sporulation on potato dextrose agar and dwarfed colonies on minimal medium agar plates containing glucose, xylan, lactose, xylose, or glycerol as the sole carbon source. The representative mutant strain, SUS2/Trcot1i, also displayed reduced mycelia accumulation but hyperbranching in the MM glucose liquid medium, with hyphal growth unit length values decreased to 73.0 μm/tip compared to 239.8 μm/tip for the parent strain SUS2. The hyperbranching phenotype led to slightly but significantly increased cellulase secretion from 24 to 72 h in a batch culture. However, the cellulase production per unit of mycelial biomass was much more profoundly improved from 24 to 96 h.
A Calmodulin-Binding Protein from Rice is Essential to Pollen Development
Qiusheng Zhang,Zhong Li,Jing Yang,Shaoqin Li,Daichang Yang,Yingguo Zhu 한국식물학회 2012 Journal of Plant Biology Vol.55 No.1
A pollen-expressed gene from rice, OsPCBP, that was previously cloned and identified encodes a novel calmodulin-binding protein. Here, we investigated its functioning in pollen development. Overexpression of OsPCBP in transgenic rice plants did not lead to phenotypic changes but did delay anther formation by about 1 week. Cytological observations at different stages revealed that microspores from the OsPCBP double-stranded RNA interference plants developed normally until the binucleate stage, but about half were later aborted. Meanwhile, the anther microstructure of those plants was unaffected. Further examination of OsPCBP expression in transgenic lines via RT-PCR showed that a significant reduction in transcripts was correlated with this abortion phenotype. Our experimental results provide convincing evidence that OsPCBP protein plays an important role during the late stage of pollen development.