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| 1 | Performance Analysis of Sparse Array based Massive MIMO via Joint Convex Optimization显示文摘Massive multiple-input multiple-output(MIMO)technology enables higher data rate transmission in the future mobile communications.However,exploiting a large number of antenna elements at base station(BS)makes effective implementation of massive MIMO challenging,due to the size and weight limits of the masssive MIMO that are located on each BS.Therefore,in order to miniaturize the massive MIMO,it is crucial to reduce the number of antenna elements via effective methods such as sparse array synthesis.In this paper,a multiple-pattern synthesis is considered towards convex optimization(CO).The joint convex optimization(JCO)based synthesis is proposed to construct a codebook for beamforming.Then,a criterion containing multiple constraints is developed,in which the sparse array is required to fullfill all constraints.Finally,extensive evaluations are performed under realistic simulation settings.The results show that with the same number of antenna elements,sparse array using the proposed JCO-based synthesis outperforms not only the uniform array,but also the sparse array with the existing CO-based synthesis method.Furthermore,with a half of the number of antenna elements that on the uniform array,the performance of the JCO-based sparse array approaches to that of the uniform array. | Mengting Lou Jing Jin Hanning Wang Dan Wu Liang Xia Qixing Wang Yifei Yuan Jiangzhou Wang | 2022 | China Communications2022，19，3： | 1 |
| 2 | Dynamics of an autonomous Gilpin-Ayala competition model with random perturbation显示文摘This paper discusses the dynamics of a Gilpin-Ayala competition model of two interacting species perturbed by white noise.We obtain the existence of a unique global positive solution of the system and the solution is bounded in pth moment.Then,we establish sufficient and necessary conditions for persistence and the existence of an ergodic stationary distribution of the model.We also establish sufficient conditions for extinction of the model.Moreover,numerical simulations are carried out for further support of present research. | Jing Fu Qixing Han Daqing Jiang Yanyan Yang | 2021 | International Journal of Biomathematics2021，14，3： | 0 |
| 3 | Porous framework materials for energy&environment relevant applications:A systematic review显示文摘Carbon peaking and carbon neutralization trigger a technical revolution in energy&environment related fields.Development of new technologies for green energy production and storage,industrial energy saving and efficiency reinforcement,carbon capture,and pollutant gas treatment is in highly imperious demand.The emerging porous framework materials such as metal–organic frameworks(MOFs),covalent organic frameworks(COFs)and hydrogen-bonded organic frameworks(HOFs),owing to the permanent porosity,tremendous specific surface area,designable structure and customizable functionality,have shown great potential in major energy-consuming industrial processes,including sustainable energy gas catalytic conversion,energy-efficient industrial gas separation and storage.Herein,this manuscript presents a systematic review of porous framework materials for global and comprehensive energy&environment related applications,from a macroscopic and application perspective. | Yutao Liu Liyu Chen Lifeng Yang Tianhao Lan Hui Wang Chenghong Hu Xue Han Qixing Liu Jianfa Chen Zeming Feng Xili Cui Qianrong Fang Hailong Wang Libo Li Yingwei Li Huabin Xing Sihai Yang Dan Zhao Jinping Li | 2024 | Green Energy & Environment2024，9，2： | 0 |
| 4 | Access to pyridines via cascade nucleophilic addition reaction of 1,2,3-triazines with activated ketones or acetonitriles显示文摘We studied the cascade nucleophilic addition reactions of 1,2,3-triazines with activated acetonitriles or ketones,which were used to construct highly substituted pyridines that are not easily accessed by conventional methods.The strategy addressed some structural diversity issues currently facing medicinal chemistry,and the resulting pyridines could be used as convenient precursors for the synthesis of related pharmaceuticals.In particular,our method was applied to the syntheses of the marketed drug etoricoxib and several biologically important molecules in a few steps. | Yuan Zhang Han Luo Qixing Lu Qiaoyu An You Li Shanshan Li Zongyuan Tang Baosheng Li | 2021 | Chinese Chemical Letters2021，32，1： | 0 |
| 5 | Acid-catalyzed ring-expansion of 4-(1-hydroxycyclobutyl)-1,2,3-triazoles显示文摘We here report a direct ring-opening/semipinacol rearrangement reaction of 4-(1-hydroxycyclobutyl)-1,2,3-triazole,in which N-acyl substituted 1,2,3-triazole was generated in situ and would trigger thermo-dynamically controlled electrocyclization ring-opening to afford a rearrangement precursor(α-diazo-ol).This strategy avoided the usage of metal catalysts and the reservation of sulfonyl groups on the N^(1)-posi-tion of 1,2,3-triazole.The final cycloenaminone product is highly reactive and could be commonly used as a dinucleophilic acceptor to synthesize structurally diverse fused bicyclic products. | Mingchuan Xu Lei Liu Tao Wang Han Luo Meili Hou Luan Du Xiaolan Xin Qixing Lu Baosheng Li | 2022 | Organic Chemistry Frontiers2022，9，4： | 0 |
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