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| 1 | Hybrid and Full-Digital Beamforming in mmWave Massive MIMO Systems: A Comparison Considering Low-Resolution ADCs显示文摘In a millimeter-wave(mmWave)Massive multiple-input multiple-output(MIMO)systems,full-digital beamforming(i.e.,connecting each antenna with a specific radio-frequency(RF)chain)becomes inefficient due to the hardware cost and power consumption.Therefore,hybrid analog and digital transceiver where the number of RF chains are much smaller than that of the antennas has drawn great research interest.In this work,we investigate the use of low-resolution analog-to-digital converters(ADCs)in the uplink of multi-user hybrid and full-digital mmWave Massive MIMO systems.To be specific,we compare the performance of full-digital minimum mean square error(MMSE)and hybrid MMSE beamforming in both sum rates and energy efficiency.Accurate approximations of sum rates and energy efficiency are provided for both schemes,which captures the dominant factors.The analytical results show that full-digital beamforming outperforms hybrid beamforming in terms of sum rates and requires only a small portion(γ)of antennas used by hybrid beamforming to achieve the same sum rates.We given sufficient condition for full-digital beamforming to outperform hybrid beamforming in terms of energy efficiency.Moreover,an algorithm is proposed to search for the optimal ADC resolution bits.Numerical results demonstrate the correctness of the analysis. | Wence Zhang Xiaoxuan Xia Yinkai Fu Xu Bao | 2019 | China Communications2019,16,6: | 2 |
| 2 | 显示文摘 | WenC E | 2003 | Materials Science Forum2003,,11: | 1 |
| 3 | Double diffu- sion dynamic model simulation and turbidity experiment for a solar pond 显示文摘 | Xie Maozhao Ge Shaocheng Sun Wence | 2006 | Journal of Thermal Science2006,15,2: | 1 |
| 4 | AFastTwo-Dimensional Entropic Thresholding Algorithm 显示文摘 | ChenWT WenC H YangCW | 1994 | Pattern Recognition1994,27,7: | 1 |
| 5 | GOUVEIA, et al, Jotun 4D: Characterization of fluidcontact movement from time-lapse seismic and production loggingtool data显示文摘 | WENCES P | 2004 | THE LEADING EDGE2004,23,11: | 1 |
| 6 | Cyclooxygenase-2 ?765 G/C polymorphisms and susceptibility to hepatitis B-related liver cancer in Han Chinese population显示文摘 | Jianhong He Quanbao Zhang Zhijian Ren Yumin Li Xun Li Wence Zhou Hui Zhang Wenbo Meng Jun Yan Wenting He | 2012 | Molecular Biology Reports2012,,4: | 1 |
| 7 | Turbidity study of solar ponds utilizing seawater as salt source显示文摘 | Li Nan Yin Fang Sun Wence | 2010 | Solar Energy2010,84,2: | 1 |
| 8 | Anionic formulation of electrolyte additive towards stable electrocatalytic oxygen evolution in seawater splitting显示文摘Hydrogen generation through seawater electrolysis provides a promising,attractive pathway towards the utilization of sustainable energy.However,the catalytic activity and stability of oxygen evolution anode are severely limited by the chloride-induced corrosion and competitive oxidation reactions.In this work,we demonstrate an anion-assisted performance improvement strategy by quick and universal screening of electrolyte additive via correlating Cl-repellency with the anionic properties.Particularly,the addition of phosphate ions is found to enable highly stable alkaline seawater splitting at industry-level current density(0.5 A cm^(-2))over 500 h using transition metal hydroxides as anodic electrocatalysts.In situ experiments and theoretical simulations further reveal that the dynamic anti-corrosion behaviors of surface-adsorbed phosphate ions are attributed to three factors including repelling Cl-ions without significantly blocking OH-diffusion,preventing transition metal dissolution and acting as a local pH buffer to compensate the fast OH-consumption under high current electrolysis. | Meng Yu Jinhan Li Fangming Liu Jiuding Liu Wence Xu Honglu Hu Xijie Chen Weichao Wang Fangyi Cheng | 2022 | Journal of Energy Chemistry2022,31,9: | 1 |
| 9 | Decentralized backstepping adaptive output tracking of interconnected nonlinear systems显示文摘 | Zhou J WenC | 2008 | IEEE Transactions on Automatic Control2008,53,10: | 1 |
| 10 | Proteomic-Level Re- sponses of Early-Weaned Piglets to Dietary Arginine Supple- mentation显示文摘 | Wence W MeiMei G TieJun L | 2009 | Animal Husbandry and Feed Science2009,1,45: | 1 |
| 11 | Hypoxic microenvironment in cancer:molecular mechanisms and therapeutic interventions显示文摘Having a hypoxic microenvironment is a common and salient feature of most solid tumors.Hypoxia has a profound effect on the biological behavior and malignant phenotype of cancer cells,mediates the effects of cancer chemotherapy,radiotherapy,and immunotherapy through complex mechanisms,and is closely associated with poor prognosis in various cancer patients.Accumulating studies have demonstrated that through normalization of the tumor vasculature,nanoparticle carriers and biocarriers can effectively increase the oxygen concentration in the tumor microenvironment,improve drug delivery and the efficacy of radiotherapy.They also increase infiltration of innate and adaptive anti-tumor immune cells to enhance the efficacy of immunotherapy.Furthermore,drugs targeting key genes associated with hypoxia,including hypoxia tracers,hypoxia-activated prodrugs,and drugs targeting hypoxia-inducible factors and downstream targets,can be used for visualization and quantitative analysis of tumor hypoxia and antitumor activity.However,the relationship between hypoxia and cancer is an area of research that requires further exploration.Here,we investigated the potential factors in the development of hypoxia in cancer,changes in signaling pathways that occur in cancer cells to adapt to hypoxic environments,the mechanisms of hypoxia-induced cancer immune tolerance,chemotherapeutic tolerance,and enhanced radiation tolerance,as well as the insights and applications of hypoxia in cancer therapy. | Zhou Chen Fangfang Han Yan Du Huaqing Shi Wence Zhou | 2023 | Signal Transduction and Targeted Therapy2023,8,3: | 1 |
| 12 | Hepatitis B virus-induced hepatocellular carcinoma显示文摘 | Cheng Xu Wence Zhou Yuming Wang Liang Qiao | 2014 | Cancer Letters2014,,2: | 1 |
| 13 | Mechanisms of competitive adsorp- tion of Pb, Cu and Cd on peat 显示文摘 | Qin F Wenc B Shan X Q | 2006 | Environmental Pollution2006,144,2: | 1 |
| 14 | Sedimentarycharacteristicsandprovenanceofsur-ficialsedimentsinthewestsouthYellowSea显示文摘 | XuG(徐刚) LiuJ(刘健) WenC(温春) etal | | 海洋地质与第四季地质0,,: | 1 |
| 15 | Numerical Simulation of Double-diffusive Dynamical Model of a Solar Pond Considering the Effect of Turbidity and Wind显示文摘一个太阳的池溏,典型双 diffusive 系统,是能收集并且存储太阳能的稳定的热来源。当热稳定的条件没在接口满足时,上面、更低的对流地区(UCZ 和 LCZ ) 将侵蚀中间的非对流的地区(NCZ ) ,导致落下或甚至太阳的池溏的热性能的倒塌。风强烈从 UCZ 的乘火车影响 NCZ 的侵蚀。热和盐的双散开从降低对流的地区(LCZ ) 的乘火车在 NCZ 的侵蚀起一个重要作用。池溏里的盐的水的混浊不仅能降低太阳的池溏的热表演,但是在乘火车机制上有效果。在这份报纸,基于与风驱动的狂暴的乘火车模型一起的双 diffusive 模型,太阳的池溏和乘火车机制的热表演上的混浊和外部风等等的效果与数字模拟被分析。关键词太阳的池溏 - 弯屈 - 双散开 - 混浊 - 侵蚀 CLC 数字 | Maozhao XIE Shaocheng GE Wence SUN | 2006 | Journal of Thermal Science2006,15,2: | 1 |
| 16 | Self-supporting amorphous nanoporous NiFeCoP electrocatalyst for efficient overall water splitting显示文摘The design of cost-effective and earth-abundant bifunctional electrocatalysts for highly efficient oxygen evolution reaction(OER)and hydrogen evolution reaction(HER)is important for water splitting as an advanced renewable energy transformation system.In this work,the self-supporting amorphous Ni Fe Co P catalyst with nanoporous structure via a facile electrochemical dealloying method is reported.Benefiting from the bicontinuous nanostructure,disordered atomic arrangement,abundant active sites and synergic effect of various transition metals,the as-prepared nanoporous NiFeCoP(np-NiFeCoP)catalyst exhibits good electrocatalytic activity,which achieves the current densities of 10 mA cm^(-2) at low overpotentials of 244 mV and 105 mV for OER and HER in 1.0 M KOH,respectively.In addition,the bifunctional electrocatalyst also shows outstanding and durable electrocatalytic activity in water splitting with a small voltage of 1.62 V to drive a current density of 10 mA cm^(-2) in a two-electrode electrolyzer system.The present work would provide a feasible strategy to explore the efficient and low-cost bifunctional electrocatalysts toward overall water splitting. | Yao Pang Wence Xu Shengli Zhu Zhenduo Cui Yanqin Liang Zhaoyang Li Shuilin Wu Chuntao Chang Shuiyuan Luo | 2021 | Journal of Materials Science & Technology2021,,23: | 1 |
| 17 | Molecular cloning, tissue distribution and ontogenetic expression of the amino acid transporter b~'~ cDNA in the small intestine of Tibetan suckling piglets显示文摘 | Wang Wence Gu Wanting Tang Xiangfang | 2009 | Comp Biochem Physiol B Biochem Mol Biol2009,,154: | 1 |
| 18 | 压缩罔像堆于学习的复原方法[J]显示文摘 | LINM DEBINz WENC | 2012 | 信号处理图像通信2012,,: | 1 |
| 19 | Energy- efficiency cooperative transmission in heterogeneous wireless networks with QoS constraint显示文摘 | DU Bo PAN Cunhua ZHANG Wence | 2014 | Wireless Personal Communications2014,76,1: | 1 |
| 20 | Maternal zinc alleviates tert-butyl hydroperoxide-induced mitochondrial oxidative stress on embryonic development involving the activation of Nrf2/PGC-1αpathway显示文摘Background Mitochondrial dysfunction induced by excessive mitochondrial reactive oxygen species(ROS)damages embryonic development and leads to growth arrest.Objective The purpose of this study is to elucidate whether maternal zinc(Zn)exert protective effect on oxidative stress targeting mitochondrial function using an avian model.Result In ovo injected tert-butyl hydroperoxide(BHP)increases(P<0.05)hepatic mitochondrial ROS,malondialdehyde(MDA)and 8-hydroxy-2-deoxyguanosine(8-OHdG),and decreases(P<0.05)mitochondrial membrane potential(MMP),mitochondrial DNA(mtDNA)copy number and adenosine triphosphate(ATP)content,contributing to mitochondrial dysfunction.In vivo and in vitro studies revealed that Zn addition enhances(P<0.05)ATP synthesis and metallothionein 4(MT4)content and expression as well as alleviates(P<0.05)the BHP-induced mitochondrial ROS generation,oxidative damage and dysfunction,exerting a protective effect on mitochondrial function by enhancing antioxidant capacity and upregulating the mRNA and protein expressions of Nrf2 and PGC-1α.Conclusions The present study provides a new way to protect offspring against oxidative damage by maternal Zn supplementation through the process of targeting mitochondria involving the activation of Nrf2/PGC-1αsignaling. | Liang Huang Wei Gao Xuri He Tong Yuan Huaqi Zhang Xiufen Zhang Wenxuan Zheng Qilin Wu Ju Liu Wence Wang Lin Yang Yongwen Zhu | 2023 | Journal of Animal Science and Biotechnology2023,14,4: | 0 |