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16篇 您的检索式:作者名="GUO Shuming"
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1Broadband achromatic metalens in terahertz regime显示文摘Achromatic focusing is essential for broadband operation, which has recently been realised from visible to infrared wavelengths using a metasurface. Similarly, multi-terahertz functional devices can be encoded in a desired metasurface phase profile. However, metalenses suffer from larger chromatic aberrations because of the intrinsic dispersion of each unit element. Here, we propose an achromatic metalens with C-shaped unit elements working from 0.3 to 0.8 THz with a bandwidth of approximately 91% over the centre frequency. The designed metalens possesses a high working efficiency of more than 68% at the peak and a relatively high numerical aperture of 0.385. We further demonstrate the robustness of our Cshaped metalens, considering lateral shape deformations and deviations in the etching depth. Our metalens design opens an avenue for future applications of terahertz meta-devices in spectroscopy, time-offlight tomography and hyperspectral imaging systems.Qingqing Cheng Meilin Ma Dong Yu Zhixiong Shen Jingya Xie Juncheng Wang Nianxi Xu Hanming Guo Wei Hu Shuming Wang Tao Li Songlin Zhuang 2019Science Bulletin2019,64,20:16
2Analog Optical Computing for Artificial Intelligence显示文摘The rapid development of artificial intelligence(AI)facilitates various applications from all areas but also poses great challenges in its hardware implementation in terms of speed and energy because of the explosive growth of data.Optical computing provides a distinctive perspective to address this bottleneck by harnessing the unique properties of photons including broad bandwidth,low latency,and high energy efficiency.In this review,we introduce the latest developments of optical computing for different AI models,including feedforward neural networks,reservoir computing,and spiking neural networks(SNNs).Recent progress in integrated photonic devices,combined with the rise of AI,provides a great opportunity for the renaissance of optical computing in practical applications.This effort requires multidisciplinary efforts from a broad community.This review provides an overview of the state-of-the-art accomplishments in recent years,discusses the availability of current technologies,and points out various remaining challenges in different aspects to push the frontier.We anticipate that the era of large-scale integrated photonics processors will soon arrive for practical AI applications in the form of hybrid optoelectronic frameworks.Jiamin Wu Xing Lin Yuchen Guo Junwei Liu Lu Fang Shuming Jiao Qionghai Dai 2022Engineering2022,8,3:4
3Ploidy level and performance in meiotic gynogenetic offsprings of grass carp using UV-irradiated blunt snout bream sperm显示文摘Diploid(2n)gynogens,triploid(3n)hybrids and 2n hybrids fish were produced in meiotic gynogenetic offsprings of grass carp(Ctenopharyngodon idella)eggs using UV-irradiated blunt snout bream(Megalobrama amblycephala)sperm.Flow cytometry revealed that a total of 306(54.2%)2n gynogens,157(27.7%)2n hybrids and 102(18.1%)3n hybrids were identified at one year old stage examined.Chromosome analysis showed that 2n gynogens and 2n hybrid individuals had the same chromosome number as their parents(2n¼48),while the chromosome number of 3n hybrids was 3n¼72.The morphological characters of 2n hybrids and 3n hybrids were intermediate between their parents,and the 2n gynogens were similar to grass carp.Microsatellite genetic analysis showed that the expected heterozygosity(He)of 2n gynogens,2n hybrids,3n hybrids and grass carp control were 0.3775,0.6518,0.6601,0.6502,respectively,and the polymorphism information content(PIC)was 0.3791,0.5749,0.5907,0.5738,respectively.Compared with 2n and 3n hybrids,the He and PIC of 2n gynogens were significantly decreased,indicating that high homozygous could be obtained by the gynogenetic method.The 3n hybrids grew faster than both 2n gynogens and 2n hybrid individuals,suggesting that 3n hybrids had an obvious growth advantage.Guodong Zheng Chenglong Wang Dandan Guo Xiayun Jiang Shuming Zou 2017Aquaculture and Fisheries2017,2,5:2
4Recycle spent graphite to defect-engineered,high-power graphite anode显示文摘Graphite is a dominant anode material for lithium-ion batteries(LIBs)due to its outstanding electrochemical performance.However,slow lithium ion(Li+)kinetics of graphite anode restricts its further application.Herein,we report that high-temperature shock(HTS)can drive spent graphite(SG)into defect-rich recycled graphite(DRG)which is ideal for high-rate anode.The DRG exhibits the charging specific capacity of 323 mAh/g at a high current density of 2 C,which outperforms commercial graphite(CG,120 mAh/g).The eminent electrochemical performance of DRG can be attributed to the recovery of layered structure and partial remaining defects of SG during ultrafast heating and cooling process,which can effectively reduce total strain energy,accelerate the phase transition in thermodynamics and improve the Li+diffusion.This study provides a facile strategy to guide the re-graphitization of SG and design high performance battery electrode materials by defect engineering from the atomic level.Jiawei Luo Jingchao Zhang Zhaoxin Guo Zhedong Liu Shuming Dou Wei-Di Liu Yanan Chen Wenbin Hu 2023Nano Research2023,16,4:2
5Almost {actoriz- able IC quasi-adequate semigroups显示文摘Qiu Shuming Hartmann M Guo Xiaoiiang 2011Communication in AI gchra2011,39,:1
6Overexpression of a cotton annexin gene, GhAnn1 , enhances drought and salt stress tolerance in transgenic cotton显示文摘Feng Zhang Shufen Li Shuming Yang Like Wang Wangzhen Guo 2015Plant Molecular Biology . 2015 (1-2)2015,,1:1
7Bonding Interface of W-CuCrZr Explosively Welded Composite Plates for Plasma Facing Components显示文摘In order to realize the effective jointing of tungsten and Cu Cr Zr alloys manufactured for plasma facing components(PFCs), explosive welding is employed for its some unique advantages. Different welding characteristics were investigated in this study. The interfacial waveform of the welded plates changed periodically from flat-wavelet to a large wave and finally to a stable wave, which began with the detonation point. The bonding strength of the specimens is higher than 32.9 MPa. Welding hardening and the formation of microcracks occurred at the interface zone. The results demonstrate that the joining reliabilities need to be improved in order to meet the need of applications involving the use of explosive welding to fabricate tungsten-based PFCs.Congxiao Sun Shuming Wang Wenhao Guo Weiping Shen Changchun Ge 2014Journal of Materials Science & Technology2014,30,12:1
8Particle motion behavior during gasiication of foam carrier in lost foam-squeeze casting of 20%TiC/ZG270-500 composites显示文摘The particle motion behavior affects the distribution of particles in the metal matrix and finally determines the mechanical properties of the particle reinforced metal-matrix composites. To obtain a uniform distribution of TiC particles and excellent strengthening effect in 20%TiC/ZG270-500 composites fabricated by lost foam-squeeze casting(LFSC), the particle motion behavior in the gas gap and the conditions of the particles getting into the molten steel were investigated. The results show that the airflow velocity(v1) and TiC particle motion velocity(uP) change little with the pouring temperature(TP), increase with an increase in metal filling velocity(vP), ratios of cross sections of in-gate/orifice(AP/A0) and orifice/mould cavity(A0/A1), but the increase trend of u P is more intense. The airflow pressure(P1) changes little with TP and A0/A1, but increases with the increasing of vP and AP/A0. Besides, there is a critical velocity(+|3yLGcosθ/ρpdp|1/2) for the particles getting into the molten steel. The higher the particle motion velocity, the easier the particles get into the molten steel and the more uniform the distribution of the particles in the steel matrix. When TP = 1,873 K, vP = 30 mm·s-1, AP/A0 =10 and A0/A1 = 0.02 in this study, the biggest TiC particle motion velocity(20.59 m·s-1) can be gained, and the steel matrix with the most uniformly distributed TiC particles and fine grains are obtained.Bin Shibo Xing Shuming Guo Lijun Bao Peiwei 2013China Foundry2013,10,6:1
9Morphological and molecular identification of pathogenic fungal of post-harvest tomato fruit during storage显示文摘GUO F X SHUMING T LU Y 2012African Journal of Microbiology Research2012,6,22:1
10A flexibleassembly retrieval approach for model reuse显示文摘CHEN Xiang GAO Shuming GUO Song 2012Computer-Aided Design2012,44,6:1
11The Method and Practice of Street Renewal Based on Innovative Design Thinking显示文摘In order to solve the practical problems of streets,create a pleasant street space and improve the participation of designers and users,the process and method of street renewal based on innovative design thinking were put forward on the basis of the core idea of“user centered”design thinking.The main steps included:setting up workshop and establishing project,understanding and observation,synthesis,creativity,prototype and test feedback.Taking the streets around Anju Dongcheng Community in Handan City as an example,the main process included setting up workshops,carrying out research and data analysis,focusing on outstanding issues,putting forward a variety of renewal and transformation schemes,scheme testing and prototype expression.The whole practice process improved the designer’s design thinking ability,enhanced the participation consciousness of street users,and provided a new idea for street renewal design.WANG Zhenbao XIANG Sirong ZHU Jiaxin GUO Shuming 2020Journal of Landscape Research2020,12,4:0
12Genome assembly of wild loquat (Eriobotrya japonica) and resequencing provide new insights into the genomic evolution and fruit domestication in loquat显示文摘Wild loquats(Eriobotrya japonica Lindl.)provide remarkable genetic resources for studying domestication and breeding improved varieties.Herein,we generate the first high-quality chromosome-level genome assembly of wild loquat,with 45791 predicted proteincoding genes.Analysis of comparative genomics indicated that loquat shares a common ancestor with apple and pear,and a recent whole-genome duplication event occurred in loquat prior to its divergence.Genome resequencing showed that the loquat germplasms can be distinctly classified into wild and cultivated groups,and the commercial cultivars have experienced allelic admixture.Compared with cultivated loquats,the wild loquat genome showed very few selected genomic regions and had higher levels of genetic diversity.However,whole-genome scans of selective sweeps were mainly related to fruit quality,size,and f lesh color during the domestication process.Large-scale transcriptome and metabolome analyses were further performed to identify differentially expressed genes(DEGs)and differentially accumulated metabolites(DAMs)in wild and cultivated loquats at various fruit development stages.Unlike those in wild loquat,the key DEGs and DAMs involved in carbohydrate metabolism,plant hormone signal transduction,f lavonoid biosynthesis,and carotenoid biosynthesis were significantly regulated in cultivated loquats during fruit development.These high-quality reference genome,resequencing,and large-scale transcriptome/metabolome data provide valuable resources for elucidating fruit domestication and molecular breeding in loquat.Danlong Jing Xinya Liu Qiao He Jiangbo Dang Ruoqian Hu Yan Xia Di Wu Shuming Wang Yin Zhang Qingqing Xia Chi Zhang Yuanhui Yu Qigao Guo Guolu Liang 2023Horticulture Research2023,10,2:0
13Recycling valuable cobalt from spent lithium ion batteries for controllably designing a novel sea-urchin-like cobalt nitride-graphene hybrid catalyst: Towards efficient overall water splitting显示文摘Along with the continuous consumption in lithium-ion batteries (LIBs), the price of cobalt is inevitably going up in recent years. Therefore, recycling valuable Co element from spent devices, and boosting its service efficiency are becoming two indispensable approaches to promote the utilization of Co in various energy conversion/storage devices. Herein, we realize the recovery of Co from spent LIBs and synthesize a three–dimensional (3D) sea-urchin-like cobalt nitride composite material (labeled as CoN-Gr-2), which is used as a bi-functional catalyst for water splitting. Benefiting from the intrinsic high conductivity, larger surface area and unique 3D sea–urchin–like architecture, CoN-Gr-2 shows an excellent electron transfer efficiency, highly exposed active sites as well as the superior mass transport capacity. The CoN-Gr-2 catalyst exhibits low overpotentials of 128.9 mV and 280 mV for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which are comparable to the commercial 20 wt% Pt/C and RuO_(2) catalysts. Moreover, when adopting CoN-Gr-2 as both anode and cathode materials for overall water splitting (in 1.0 M KOH electrolyte), the assembled cell achieves a current density of 10 mA cm^(−2) at 1.61 V, which almost close to that of Pt/C||RuO_(2) benchmark (1.60 V), demonstrating its superior water-splitting efficiency. Meanwhile, the CoN catalysts exhibit strong chemical interaction with the Gr support, suppressing the aggregation of CoN catalysts and maintains their high activity during HER and OER reactions. So, the cell exhibits a high current retention of 97.3% after 40 h. This work successfully develops an industrial chain from recycling Co wastes in spent energy devices to controllably designing 3D sea-urchin-like CoN-Gr with high water splitting efficiency. Therefore, it could further promote the efficient utilization of valuable Co element in various energy devices.Tingting Liu Sheng Cai Genfu Zhao Zhihui Gao Shuming Liu Huani Li Lijuan Chen Mian Li Xiaofei Yang Hong Guo 2021Journal of Energy Chemistry2021,30,11:0
14Experimental investigation of measurement incompatibility of mutually unbiased bases显示文摘Incompatible measurements are of fundamental importance to re-vealing the peculiar features of quantum theory,and are also use-ful resources in various quantum information tasks.In this work,we investigate the quantum incompatibility of mutually unbiased bases(MUBs)within the operational framework of quantum resource the-ory,and report an experimental validation via the task of state dis-crimination.In particular,we construct an experimentally friendly witness to detect incompatible MUBs,based on the probability of cor-rectly discriminating quantum states.Furthermore,we prove that the noise robustness of MUBs can be retrieved from violating the above witness.Finally,we experimentally test the incompatibility of MUBs of dimensionality ranging from 2 to 4,and demonstrate that it is more robust to noise,as either the dimensionality of measurements or the number of MUBs increases.Our results may aid the exploration of the essential roles of incompatible measurements in both theoretical and practical applications in quantum information.Yu Guo Shuming Cheng Xiao-Min Hu Bi-Heng Liu Yun-Feng Huang Chuan-Feng Li Guang-Can Guo 2023Chip2023,2,1:0
15On the accurate characterization of quantum-dot light-emitting diodes for display applications显示文摘Quantum dot light-emitting diodes(QLEDs)are a class of high-performance solution-processed electroluminescent(EL)devices highly attractive for next-generation display applications.Despite the encouraging advances in the mechanism investigation,material chemistry,and device engineering of QLEDs,the lack of standard protocols for the characterization of QLEDs may cause inaccurate measurements of device parameters and invalid comparison of different devices.Here,we report a comprehensive study on the characterizations of QLEDs using various methods.We show that the emission non-uniformity across the active area,nonLambertian angular distributions of EL intensity,and discrepancies in the adopted spectral luminous efficiency functions could introduce significant errors in the device efficiency.Larger errors in the operational-lifetime measurements may arise from the inaccurate determination of the initial luminance and inconsistent methods for analyzing the luminance-decay curves.Finally,we suggest a set of recommended practices and a checklist for device characterizations,aiming to help the researchers in the QLED field to achieve accurate and reliable measurements.Wangxiao Jin Yunzhou Deng Bingbing Guo Yaxiao Lian Baodan Zhao Dawei Di Xiaowei Sun Kai Wang Shuming Chen Yixing Yang Weiran Cao Song Chen Wenyu Ji Xuyong Yang Yuan Gao Shuangpeng Wang Huaibin Shen Jialong Zhao Lei Qian Fushan Li Yizheng Jin 2022npj Flexible Electronics2022,6,1:0
16Modifying the Properties of Tungsten Based Plasma Facing Materials with Single-Wall Carbon Nanotubes显示文摘Tungsten is one of the best candidates for plasma-facing components in fusion reactors owing to its unique properties.But disadvantages such as its brittleness and high ductile-to-brittle transition temperature have restricted its fusion energy application.Single-walled carbon nanotubes(SWCNTs) have the potential to be used as reinforcements due to their excellent mechanical properties.A new method of modifying the properties of tungsten by doping with SWCNTs was introduced.An efficient way of dispersing SWCNTs into the tungsten matrix with strong interfaces by heterocoagulation and ultrasonication was employed,and hot explosive compaction(HEC) technology was selected to compact and sinter the composite powders.The sintering properties,microstructure,densification effect,thermal conductivity,hardness and fracture toughness of the obtained SWCNTs/W bulk samples were tested,and compared with pure tungsten.The influences of SWCNTs on these properties and the main toughening mechanism of SWCNTs in a tungsten matrix were discussed.Shuming Wang Chongxiao Sun Wenhao Guo Changchun Ge Qingzhi Yan Qiang Zhou Pengwan Chen Zhibao Chen 2013Journal of Materials Science & Technology2013,29,10:0
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