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| 1 | The influence of pore size distribution on thermal conductivity,permeability, and phase change behavior of hierarchical porous materials显示文摘Porous foams have been widely employed to improve heat storage rate and prevent leakage of phase change materials(PCMs).Actual porous foams have non-uniform or hierarchical pore size distribution, which is usually neglected in most researches.Here, we establish hierarchical porous models considering different pore size distributions by using Voronoi tessellations. Effects of pore size distribution on thermal conductivity, permeability, and phase change behavior of hierarchical porous foams/PCMs composites are investigated. Uneven pore size distributions are found to decrease the thermal conductivity of porous foams to some extent. On the other hand, the permeability can be reduced by 27.6%, and the heat storage rate can be improved by 7.7% by introducing moderate hierarchy without changing the total porosity. This work opens a new route to enhance heat storage performance of PCMs via leveraging hierarchy of pore size distribution of porous foams. | LIU XiangLei SONG FangZhou XU Qiao LUO QingYang TIAN Yang LI JiaWei YANG XinMeng JIN Yi | 2021 | Science China(Technological Sciences)2021，64，11： | 3 |
| 2 | Functional analysis of luxS in Streptococcus suis reveals a key role in biofilm formation and virulence显示文摘 | Yang Wang Wei Zhang Zongfu Wu Xianglei Zhu Chengping Lu | 2011 | Veterinary Microbiology2011，，1： | 1 |
| 3 | A new evalu- ation method based on D-S generalized fuzzy soft sets and its application in medical diagnosis problem显示文摘 | Xiao Zhi Yang Xianglei Niu Qing | 2012 | Applied Mathematical Modelling2012，36，10： | 1 |
| 4 | A new evaluation method based on D-S generalized fuzzy soft sets and its application in medical diagnosis problem显示文摘 | Xiao Zhi Yang Xianglei Niu Qing | 2012 | Applied Mathe- matical Modelling2012，36，10： | 1 |
| 5 | Characterization of Skin Symbiotic Bacteria of Sympatric Amphibians in Southeastern China显示文摘The fungal infection called chytridiomycosis,caused by Batrachochytrium dendrobatidis(Bd),has given rise to dramatic declines or extinctions of many amphibian species around the world;however,in Asia,this disease has shown a low zoospore load or scant mortality.One potential reason for this may be that certain unique community structures of amphibian skin symbiosis contribute to the outcome of the disease;nevertheless,we know very little about the microbiota in this region. In this study,we used skin swabs of five sympatric amphibian species that have various habitat preferences in Lishui,Zhejiang Province,a place in southeastern China,to explore the skin bacterial communities by using 16 S rRNA amplicon sequencing.We detected a total of 1020 OTUs,belonging to 17 phyla,among which Proteobacteria,Firmicutes,Actinobacteria and Bacteroidetes dominated all five host species.Enterobacteriaceae and Exiguobacteraceae and the genera Escherichia and Exiguobacterium belonging to these two families were identified as the most abundant taxa on our focal species.The alpha diversity was significantly lower on the terrestrial species,and also the highly enriched Proteobacteria was found on the terrestrial species,Rana zhenhaiensis,whereas Actinobacteria,Bacteroidetes,Cyanobacteria and Firmicutes were more abundant on aquatic species than on the terrestrial species.Our results suggest that both host species and habitat sites are important factors driving skin microbial diversity and composition and that amphibians in China may harbour unique skin bacterial communities.This study helps elucidate amphibian skin microbial ecology,and with further efforts,the specific mechanism of the interaction between Bd and host amphibians in China could be elucidated. | Xuejiao YANG Xianglei HOU Li WEI Yu LI Mingshuo QIN Tianjian SONG Yiming LI | 2020 | Asian Herpetological Research2020，11，4： | 0 |
| 6 | From sawdust waste to high-value hierarchical ceramics-based phase change materials: Efficient dual functional thermal and solar energy storage显示文摘Latent heat thermal energy storage(LHTES) technology is gaining extensive attention due to its capability to balance supply and demand mismatch in solar energy utilization. However, phase change material as the core of storing latent heat still suffers from low thermal conductivity and poor shape stability, which severely restricts its practical application. Here, an eco-friendly strategy for achieving high-performance dual functional thermal and solar energy storage is proposed via turning wood processing waste into high-value hierarchical porous SiC ceramic-based composite phase change materials. The porosity of prepared porous SiC skeletons is highly adjustable from 59.4% to 90.2%, overcoming low porosity limitations of traditional wood materials and enabling tunable energy storage density for various applications. High thermal conductivity is achieved by benefiting from large grains and continuous skeletons with a value up to 37.93 and 1.87 W/(m K) for porosity of 59.4% and 90.2%, respectively.Excellent stabilities are demonstrated with only slight decreases of thermal conductivity and energy storage density over 1000 cycles and good anti-leakage properties are confirmed due to capillary adsorption forces induced by hierarchical pores. Benefiting from high thermal conductivity and high solar absorptance, fast and efficient solar thermal energy storage is successfully demonstrated. This work provides a new strategy for the high-value utilization of wood processing waste and efficient thermal/solar energy storage. | LIU XiangLei WEI PeiDong LUO QingYang XU Qiao WANG JianGuo LV ShuShan TIAN Yang YAO HaiChen XUAN YiMin | 2023 | Science China(Technological Sciences)2023，66，9： | 0 |
| 7 | Cai'e County:In-flow Project Attracts the Floating Population to Return and Work显示文摘Chen Shangjun, the manager of a bead and embroidery factory located in Cai'e County, Daxiang District, Shaoyang city in Hunan Province is going to Guangzhou again. His | Yang Hui, Xiao Xianglei and Li Ting | 2007 | China Population Today2007，24，3： | 0 |
| 8 | Security control of positive semi-Markovian jump systems with actuator faults显示文摘Actuator faults usually cause security problem in practice.This paper is concerned with the security control of positive semi-Markovian jump systems with actuator faults.The considered systems are with mode transition-dependent sojourn-time distributions,which may also lead to actuator faults.First,the time-varying and bounded transition rate that satisfies the mode transition-dependent sojourn-time distribution is considered.Then,a stochastic co-positive Lyapunov function is constructed.Using matrix decomposition technique,a set of state-feedback controllers for positive semi-Markovian jump systems with actuator faults are designed in terms of linear programming.Under the designed controllers,stochastic stabilization of the systems with actuator faults are achieved and the security of the systems can be guaranteed.Furthermore,the proposed results are extended to positive semi-Markovian jump systems with interval and polytopic uncertainties.By virtue of a segmentation technique of the transition rates,a less conservative security control design is also proposed.Finally,numerical examples are provided to demonstrate the validity of the presented results. | Junfeng Zhang Haoyue Yang Suhuan Zhang Xianglei Jia | 2021 | Control Theory and Technology2021，19，2： | 0 |
| 9 | Artificial“honeycomb-honey”decorated with non-noble plasmonic nanoparticles for superior solar capture and thermal energy storage显示文摘Phase change materials(PCMs)are popular solutions to tackle the unbalance of thermal energy supply and demand,but suffer from low thermal conductivity and leakage problems.Inspired by how honeybees store honey,we propose artificial“honeycombhoney”for excellent solar and thermal energy storage capacity based on TiN nanoparticles decorated porous AlN skeletonsPCMs composites.The thermal conductivity of composites achieves 21.58 W/(m·K)at AlN loading of 20 vol.%,superior to the state-of-the-art ceramic-based composites.The charging/discharging time is reduced to about half of pure PCMs with shapestability and thermal reliability well maintained over 500 melting/freezing cycles.The underlying mechanism can be attributed to the combination of single-crystal AlN whiskers with few crystal defects and reduced phonon scattering,as well as vertically arranged three-dimantional(3D)heat conduction channels.A rapid and efficient solar thermal storage is also demonstrated with solar thermal storage efficiency achieving a high value of 92.9%without employing additional spectrum selective coatings.This is benefited from high thermal conductivity and full-spectrum solar absorptance of up to 95%induced by plasmonic resonances of TiN nanoparticles.In addition,by embedding LiNO3-NaCl eutectics,the phase change enthalpy of composites reaches as high as 208 kJ/kg,making high energy storage density and fast energy storage rate compatible.This work offers new routes to achieve rapid,efficient,stable,and compact solar capture and thermal energy storage. | Haolei Wang Xianglei Liu Qingyang Luo Haichen Yao Qiao Xu Yang Tian Jianguo Wang Yimin Xuan | 2022 | Nano Research2022，15，9： | 0 |
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