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| 1 | High Frequency Communication Network with Diversity: System Structure and Key Enabling Techniques显示文摘High frequency sky wave communication suffers from poor performance including poor link quality and low link success rate. To enhance performance, diversity technology is proposed in the high frequency communication network(HFCN) in this paper.First, we present the benefits and the challenges by introducing diversity technology into the existing HFCN. Secondly, to exploit the benefits fully and overcome the challenges, we propose a system structure suitable for deploying diversity technology in HFCN in large scale,based on the cloud radio access network and software defined network. Moreover, we present a general structure for the real-time updating frequency management system that plays a more important role especially when resource consuming(e.g., frequency) diversity technology is deployed. Thirdly, we investigate the key techniques enabling diversity technology deployment. Finally, we point out the future research directions to help the HFCN with diversity work more efficiently and intelligently. | Kun Xu Bin Jiang Zeyou Su Shengqing Wang Makun Guo Xiao Li Zhiyong Du | 2018 | China Communications2018,15,9: | 3 |
| 2 | Design of a CMOS Distributed Power Amplifier with Gradual Changed Gain Cells显示文摘A non-uniform Distributed power amplifier(DPA) is designed and implemented in a 0.18μm CMOS technology. The gradual changed gain cells work with the tapered on-chip inductors to construct non-uniform artificial transmission lines, which improves the output power and efficiency in a wide frequency band while maintaining good input and output impedance matching. The proposed DPA achieves 9 dB average associated gain from 1 to 17.2 GHz, and the input return loss is less than--9 dB while the output return loss is less than-8.5 dB in the desired frequency band. The output power at 1 dB Output compression point(OP1 dB) is more than 7.8 dBm in the frequency band of 2-16 GHz, and the peak power-added efficiency is 6.2% with the OP1 dB12.6 dBm at 4 GHz. | ZHANG Ying LI Zeyou YANG Hua GENG Xiao ZHANG Yi | 2018 | Chinese Journal of Electronics2018,27,6: | 2 |
| 3 | Interaction of hsa-miR-381 and glioma suppressor LRRC4 is involved in glioma growth显示文摘 | Hailin Tang Xiaoping Liu Zeyou Wang Xiaoling She Xi Zeng Min Deng Qianjin Liao Xiaofang Guo Rong Wang Xiaoling Li Fang Zeng Minghua Wu Guiyuan Li | 2011 | Brain Research2011,,: | 1 |
| 4 | Effect of dexmedetomidine hydrochloride on I-I202 - induced oxidative stress in alveolar macrophages显示文摘 | Lili Jiang Zeyou Qi Li | 2013 | Zhong nan da xue xue bao2013,38,10: | 1 |
| 5 | Tailoring Functional Micromotors for Sensing显示文摘Micromotors are identified as a promising candidate in the field of sensing benefiting from their capacity of autonomous movement.Here,a review on the development of tailoring micromotors for sensing is presented,covering from their propulsion mechanisms and sensing strategies to applications.First,we concisely summarize the propulsion mechanism of micromotors involving fuel-based propulsion and fuel-free propulsion introducing their principles.Then,emphasis is laid to the sensing stratagems of the micromotors including speed-based sensing strategy,fluorescence-based sensing strategy,and other strategies.We listed typical examples of different sensing stratagems.After that,we introduce the applications of micromotors in sensing fields including environmental science,food safety,and biomedical fields.Finally,we discuss the challenges and prospects of the micromotors tailored for sensing.We believe that this comprehensive review can help readers to catch the research frontiers in the field of sensing and thus to burst out new ideas. | Lijun Cai Dongyu Xu Zeyou Zhang Ning Li Yuanjin Zhao | 2023 | Research2023,,3: | 1 |
| 6 | Ball-milling Synthesis of Tetrahydroquinolines via 'One-pot' Three-component Diels-Alder Reaction Catalyzed by Phosphotungstic Acid显示文摘We reported an economic and practical ball-milling method for the synthesis of tetrahvdroquinoline derivatives via a wone-pot'three-component Diels-Alder reaction of anilines,aldehydes and alkenes catalyzed by phos-photungstic acid at room temperature.For this reaction,a simple 'one-pot'ball-milling operation was conducted,readily available starting materials were employed,'one-pot'conditions were applied,and the most important was to use inexpensive and environmentally friendly catalyst phosphotungstic acid.Various tetrahvdroquinolines,which might be potentially applicable in the pharmaceutical and biochemical areas,were conveniently synthesized in moderate to excellent yields. | WANG Zeyou SHEN Guodong HUANG Xianqiang GONG Shuwen YANG Bingchuan SUN Zhenzhen ZHANG Zuhao LIU Wanxing | 2020 | Chemical Research in Chinese Universities2020,36,5: | 0 |
| 7 | Hollow hydrangea-like nitrogen-doped NiO/Ni/carbon composites as lightweight and highly efficient electromagnetic wave absorbers显示文摘Hierarchical hollow-structured magnetic–dielectric materials are considered to be promising and competitive functional absorbers for microwave absorption(MA).Herein,a hierarchical hollow hydrangea multicomponent metal oxides/metal-carbon was designed and successfully produced via a facile self-assembly method and calcination process.Adequate magnetic NiO and Ni nanoparticles were suspended within the hollow hydrangea-like nitrogen-doped carbon matrix(HH N-NiO/Ni/C),constructing a unique hierarchical hollow structured multicomponent magnetic–dielectric MA composite.The annealing temperature and oxidation time were carefully regulated to investigate the complex permittivity and permeability.HH N-NiO/Ni/C delivers exceptional MA properties with maximum reflection loss of–45.8 dB at 1.7 mm thickness and displays a wide effective absorption frequency range of 5.6 GHz.The superior MA performance can be attributed to the following aspects:(1)The hierarchical hollow multicomponent structure offers plentiful of heterojunction interfaces triggering interfacial polarization;(2)nitrogen doped-carbon(N-C)facilitates the conductive loss by the unique electron migration path in the graphitized C and NiO/Ni;(3)magnetic NiO/Ni nanoparticles homogeneously dispersed within N-C form extensive C skeleton and strengthen the magnetic response ability;(4)hierarchical hollow wrinkled structures possess a large interspace and heterogeneous interface improving polarization loss and enhancing multireflection process and the unique structure satisfies magnetic and dielectric loss simultaneously resulting from synergistic effects of different components within the composites. | Jin Liang Chunwei Li Xin Cao Yuxiang Wang Zongcheng Li Benzheng Gao Zeyou Tong Bin Wang Shuchen Wan Jie Kong | 2022 | Nano Research2022,15,8: | 0 |