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| 1 | Advances in engineering RuO_(2) electrocatalysts towards oxygen evolution reaction显示文摘Water electrolysis technology holds the perfect promise of the hydrogen production,yet control of efficiency and rate of water electrolysis greatly relies on the availability of high-performance electrode materials for kinetic-sluggish oxygen evolution reaction(OER).Accordingly,substantial endeavors have been made to explore advanced electrode materials over the past decade.Recently,RuO_(2) and RuO_(2)-based materials have been demonstrated to be promising for OER due to their remarkable electrocatalytic activity and pH-universal application.Herein,the great achievements and progresses of this flourishing spot are comprehensively reviewed,which are started by a general description of OER to understand the reaction mechanism in detail.Subsequently,the key advantages and issues of RuO_(2) towards OER are also introduced,followed by proposing many advanced strategies for further promoting the electrocatalytic OER performance of RuO_(2).Finally,the daunting challenges and future progresses of RuO_(2) electrocatalysts toward practical water oxidation are highlighted,aiming to provide guidance for the fabrication of desirable RuO_(2)-based electrocatalysts toward OER. | Cheng Wang Liujun Jin Hongyuan Shang Hui Xu Yukihide Shiraishi Yukou Du | 2021 | Chinese Chemical Letters2021，32，7： | 6 |
| 2 | Lnc-RP5 Regulates the mi R-129-5p/Notch1/PFV Internal Promoter Axis to Promote the Expression of the Prototype Foamy Virus Transactivator Tas显示文摘Prototype foamy virus(PFV)is a unique retrovirus that infects animals and humans and does not cause clinical symptoms.Long noncoding RNAs(lncRNAs)are believed to exert multiple regulatory functions during viral infections.Previously,we utilized RNA sequencing(RNA-seq)to characterize and identify the lncRNA lnc-RP5-1086 D14.3.1-1:1(lnc-RP5),which is markedly decreased in PFV-infected cells.However,little is known about the function of lnc-RP5 during PFV infection.In this study,we identified lnc-RP5 as a regulator of the PFV transcriptional transactivator(Tas).Lnc-RP5 enhanced the activity of the PFV internal promoter(IP).The expression of PFV Tas was found to be promoted by lnc-RP5.Moreover,mi R-129-5 p was found to be involved in the lnc-RP5-mediated promotion of PFV IP activity,while the Notch1 protein suppressed the activity of PFV IP and the expression of Tas.Our results demonstrate that lnc-RP5 promotes the expression of PFV Tas through the miR-129-5 p/Notch1/PFV IP axis.This work provides evidence that host lnc RNAs can manipulate PFV replication by employing mi RNAs and proteins during an early viral infection. | Shanshan Xu Liujun Chen Yinglian Tang Peipei Yuan Jun Yan Yingcheng Zheng Li Huang Zhi Li Yan Sun Song Han Jun Yin Qin Pan Biwen Peng Xiaohua He Wanhong Liu | 2020 | Virologica Sinica2020，35，1： | 1 |
| 3 | A wavelet-based multi- sensor data fusion algorithm显示文摘 | Xu Liujun Zhang Jianqiu Yan Yong | 2004 | IEEE Transactions on Instru- mentation and Measurement2004，53，6： | 1 |
| 4 | Black-hole-inspired thermal trapping with graded heat-conduction metadevices显示文摘The curved space-time produced by black holes leads to the intriguing trapping effect.So far,metadevices have enabled analogous black holes to trap light or sound in laboratory spacetime.However,trapping heat in a conductive environment is still challenging because diffusive behaviors are directionless.Inspired by black holes,we construct graded heat-conduction metadevices to achieve thermal trapping,resorting to the imitated advection produced by graded thermal conductivities rather than the trivial solution of using insulation materials to confine thermal diffusion.We experimentally demonstrate thermal trapping for guiding hot spots to diffuse towards the center.Graded heat-conduction metadevices have advantages in energy-efficient thermal regulation because the imitated advection has a similar temperature field effect to the realistic advection that is usually driven by external energy sources.These results also provide an insight into correlating transformation thermotics with other disciplines,such as cosmology,for emerging heat control schemes. | Liujun Xu Jinrong Liu Peng Jin Guoqiang Xu Jiaxin Li Xiaoping Ouyang Ying Li Cheng-Wei Qiu Jiping Huang | 2023 | National Science Review2023，10，2： | 0 |
| 5 | Breaking efficiency limit of thermal concentrators by conductivity couplings显示文摘The concentrating efficiency of a thermal concentrator can be reflected in the ratio of its interior to exterior temperature gradients,which, however, has an upper limit in existing schemes. Here, we manage to break this upper limit by considering the couplings of thermal conductivities and improve the concentrating efficiency of thermal concentrators. For this purpose, we first discuss a monolayer scheme with an isotropic thermal conductivity, which can break the upper limit but is still restricted by its geometric configuration. To go further, we explore another degree of freedom by considering the monolayer scheme with an anisotropic thermal conductivity or by adding the second shell with an isotropic thermal conductivity, thereby making the concentrating efficiency completely free from the geometric configuration. Nevertheless, apparent negative thermal conductivities are required, and we resort to external heat sources realizing the same effect without violating the second law of thermodynamics. Finite-element simulations are performed to confirm the theoretical predictions, and experimental suggestions are also provided to improve feasibility. These results may have potential applications for thermal camouflage and provide guidance to other diffusive systems such as static magnetic fields and dc current fields for achieving similar behaviors. | Pengfei Zhuang Liujun Xu Peng Tan Xiaoping Ouyang Jiping Huang | 2022 | Science China(Physics,Mechanics & Astronomy)2022，65，11： | 0 |
| 6 | Line-of-Sight MIMO for Next-Generation Microwave Transmission Systems显示文摘Line-of-sight MIMO (LoS MIMO) is not applicable in scattering wireless transmission scenarios, but it may be applied in LoS microwave transmission scenarios if antenna spacing (within transmit and/or receive arrays) is suitable and there is one hop distance. LoS MIMO can improve channel capacity and performance of a transmission system. In this paper, we discuss factors affecting channel capacity and performance in LoS MIMO. We also discuss the feasibility LoS MIMO applications. | Xianwei Gong Zhifeng Yuan Jun Xu Liujun Hu | 2012 | ZTE Communications2012，10，4： | 0 |
| 7 | Chameleonlike metashells in microfluidics: A passive approach to adaptive responses显示文摘Heat energy can transfer via convection, conduction, and radiation. Based on convection and conduction in microfluidics, people have designed and fabricated many novel devices. However, almost none of them has adaptivity, thus restricting practical applications under different conditions. To solve this problem, here we propose a passive approach to adaptive responses. That is,we consider the thermal convection-conduction process in microfluidic structures where Darcy’s law and Fourier’s law are both valid. By carefully designing two key parameters(i.e., tensorial thermal conductivity and tensorial permeability) of a metashell,we theoretically reveal that its effective properties(i.e., effective thermal conductivity and effective permeability) can adaptively change according to the inside object, thus yielding the 'chameleonlike metashell'. Further, this metashell is passive since it requires no prior knowledge of the inside object. We also report that the chameleonlike behavior can occur for anisotropic inside objects, nonuniform external fields, or even complex shapes. All theoretical analyses agree well with finite-element simulations.The chameleonlike metashell can act as an intelligent metamaterial in microfluidics for its adaptive responses, and it can also benefit other physical fields where convection plays a role, such as mass diffusion. | LiuJun Xu JiPing Huang | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，2： | 0 |
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