46,248 research outputs found
Coordinated hybrid precoding design in millimeter wave fog-RAN
No full textIn this paper, we propose a femto base station cluster (FBSC)-based fog radio access network (F-RAN) structure, where multiple FBSs coordinately serve users in each FBSC with mmWave band. In addition, the FBS head (FBSH) in each FBSC receives data from the central processor (CP) via fronthaul link with microwave band. Based on this, we formulate a transmission delay minimization problem by optimizing coordinated hybrid analog/digital precoding under transmit power constraints of each FBS in the FBSCs and the BS in the CP. Then, we propose a coordinated analog precoding scheme for multiple FBSs within the same FBSC. Meanwhile, we equivalently divide the original problem into two independent optimization problems, and propose an effective iterative algorithm to solve them. Simulation results show the effectiveness of our proposed algorithms
Nemophora latirectangula Sun, Wang et Li 2022, sp. nov.
No full textNemophora latirectangula Sun, Wang et Li, sp. nov. Distribution. China (Hebei).Published as part of Sun, Hao, Wang, Shuxia & Li, Houhun, 2022, Review of the degeerella species group of the genus Nemophora Hoffmannsegg 1798 (Lepidoptera: Adelidae) from China, pp. 301-338 in Zootaxa 5219 (4) on page 335, DOI: 10.11646/zootaxa.5219.4.1, http://zenodo.org/record/743392
Nemophora apiciprocessa Sun, Wang et Li 2022, sp. nov.
No full textNemophora apiciprocessa Sun, Wang et Li, sp. nov. Distribution. China (Hubei).Published as part of Sun, Hao, Wang, Shuxia & Li, Houhun, 2022, Review of the degeerella species group of the genus Nemophora Hoffmannsegg 1798 (Lepidoptera: Adelidae) from China, pp. 301-338 in Zootaxa 5219 (4) on page 333, DOI: 10.11646/zootaxa.5219.4.1, http://zenodo.org/record/743392
Nemophora borealis Sun, Wang et Li 2022, sp. nov.
No full textNemophora borealis Sun, Wang et Li, sp. nov. Distribution. China (Gansu, Hebei, Henan, Jilin, Ningxia, Shaanxi).Published as part of Sun, Hao, Wang, Shuxia & Li, Houhun, 2022, Review of the degeerella species group of the genus Nemophora Hoffmannsegg 1798 (Lepidoptera: Adelidae) from China, pp. 301-338 in Zootaxa 5219 (4) on page 334, DOI: 10.11646/zootaxa.5219.4.1, http://zenodo.org/record/743392
Nemophora gaoligongshana Sun, Wang et Li 2022, sp. nov.
No full textNemophora gaoligongshana Sun, Wang et Li, sp. nov. Distribution. China (Yunnan).Published as part of Sun, Hao, Wang, Shuxia & Li, Houhun, 2022, Review of the degeerella species group of the genus Nemophora Hoffmannsegg 1798 (Lepidoptera: Adelidae) from China, pp. 301-338 in Zootaxa 5219 (4) on page 334, DOI: 10.11646/zootaxa.5219.4.1, http://zenodo.org/record/743392
Source code and demo of MAGUS (Machine Learning and Graph Theory Assisted Universal Structure Searcher) v2.0.0
No full textThis is the source code and demo for MAGUS (Machine Learning and Graph Theory Assisted Universal Structure Searcher) v2.0.0. Future updates can be accessed from gitlab (https://gitlab.com/bigd4/magus) after registration (https://www.wjx.top/vm/m5eWS0X.aspx).MAGUS is a Python package designed to predict crystal structures, which is free for non-commercial academic use, subject to registration and approval at https://www.wjx.top/vm/m5eWS0X.aspx .
1) This Code or its derivative work will not be used for any purpose other than non-commercial research.
2) This Code or its derivative code will not be published or otherwise distributed.
3) The use of this Code should be acknowledged by citing the tutorial paper describing the use of this code:
[1] Junjie Wang, Hao Gao, Yu Han, Chi Ding, Shuning Pan, Yong Wang, Qiuhan Jia, Hui-Tian Wang, Dingyu Xing, and Jian Sun, "MAGUS: machine learning and graph theory assisted universal structure searcher", National Science Review 10 (7), nwad128 (2023).
[2] Kang Xia, Hao Gao, Cong Liu, Jianan Yuan, Jian Sun, Hui-Tian Wang, Dingyu Xing, "A novel superhard tungsten nitride predicted by machine-learning accelerated crystal structure search", Sci. Bull. 63, 817 (2018).Additional references that may be cited (at the discretion of the user) are:
Graph theory:
[3] Hao Gao, Junjie Wang, Yu Han, Jian Sun, "Enhancing Crystal Structure Prediction by Decomposition and Evolution Schemes Based on Graph Theory", Fundamental Research 1, 466 (2021).
[4] Hao Gao, Junjie Wang, Zhaopeng Guo, Jian Sun, "Determining dimensionalities and multiplicities of crystal nets" npj Comput. Mater. 6, 143 (2020).
Surface reconstruction:
[5] Y. Han, J. Wang, C. Ding, H. Gao, S. Pan, Q. Jia, and J. Sun, "Prediction of surface reconstructions using MAGUS", The Journal of Chemical Physics 158 (17), 174109 (2023).
Structure searching in confined space:
[6] Chi Ding, Junjie Wang, Yu Han, Jianan Yuan, Hao Gao, and Jian Sun, "High Energy Density Polymeric Nitrogen Nanotubes inside Carbon Nanotubes", Chin. Phys. Lett. 39, 036101 (2022). (Express Letter)Peer reviewe
Fig. 4 in Ten undescribed cembrane-type diterpenoids from the gum resin of Boswellia sacra and their biological activities
No full textFig. 4. ORTEP drawing of compound 1.Published as part of Wang, Jia-Jia, Sun, Hao-Ran, Suo, Xin-Yue, Wang, Xue, Sun, Hua, Wang, Xiao-Liang, Jiang, Jian-Dong & Ji, Teng-Fei, 2020, Ten undescribed cembrane-type diterpenoids from the gum resin of Boswellia sacra and their biological activities, pp. 1-10 in Phytochemistry (112425) 177 on page 3, DOI: 10.1016/j.phytochem.2020.112425, http://zenodo.org/record/829579
Fig. 3. Selected key ROESY correlations for compound 1 in Ten undescribed cembrane-type diterpenoids from the gum resin of Boswellia sacra and their biological activities
No full textFig. 3. Selected key ROESY correlations for compound 1.Published as part of Wang, Jia-Jia, Sun, Hao-Ran, Suo, Xin-Yue, Wang, Xue, Sun, Hua, Wang, Xiao-Liang, Jiang, Jian-Dong & Ji, Teng-Fei, 2020, Ten undescribed cembrane-type diterpenoids from the gum resin of Boswellia sacra and their biological activities, pp. 1-10 in Phytochemistry (112425) 177 on page 3, DOI: 10.1016/j.phytochem.2020.112425, http://zenodo.org/record/829579
W-operators and generating functions of hurwitz numbers
No full textThis thesis is motivated by the W-operators introduced by Mironov et al. We prove that the W-operators are generalizations of the cut-and-join operator studied by Goulden and Jackson. We give a new description of the structure of W-operators, using the combinations of symmetric groups. As an application, we prove new formulas about generating functions of connected Hurwitz numbers and give topological recursion formulas for d-Hurwitz numbers.Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-05-01The student, Hao Sun, accepted the attached license on 2018-04-17 at 14:47.The student, Hao Sun, submitted this Dissertation for approval on 2018-04-17 at 14:59.This Dissertation was approved for publication on 2018-04-18 at 09:36.DSpace SAF Submission Ingestion Package generated from Vireo submission #12313 on 2018-08-31 at 17:29:30Made available in DSpace on 2018-09-04T20:47:19Z (GMT). No. of bitstreams: 2
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A Constant Factor Approximation for Directed Feedback Vertex Set in Graphs of Bounded Genus
No full textThe minimum directed feedback vertex set problem consists in finding the minimum set of vertices that should be removed in order to make a directed graph acyclic. This is a well-known NP-hard optimization problem with applications in various fields, such as VLSI chip design, bioinformatics and transaction processing deadlock prevention and node-weighted network design. We show a constant factor approximation for the directed feedback vertex set problem in graphs of bounded genus
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