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| 1 | A review on additive manufacturing of ceramic matrix composites显示文摘Additive manufacturing(AM)of ceramic matrix composites(CMCs)has enabled the production of highly customized,geometrically complex and functionalized parts with significantly improved properties and functionality,compared to single-phase ceramic components.It also opens up a new way to shape damage-tolerant ceramic composites with co-continuous phase reinforcement inspired by natural ma-terials.Nowadays,a large variety of AM techniques has been successfully applied to fabricate CMCs,but variable properties have been obtained so far.This article provides a comprehensive review on the AM of ceramic matrix composites through a systematic evaluation of the capabilities and limitations of each AM technique,with an emphasis on reported results regarding the properties and potentials of AM man-ufactured ceramic matrix composites. | Jinxing Sun Daorong Ye Ji Zou Xiaoteng Chen Yue Wang Jinsi Yuan Haowen Liang Hongqiao Qu Jon Binner Jiaming Bai | 2023 | Journal of Materials Science & Technology2023，，7： | 1 |
| 2 | An internal-external optimized convolutional neural network for arbitrary orientated object detection from optical remote sensing images显示文摘Due to the bird’s eye view of remote sensing sensors,the orientational information of an object is a key factor that has to be considered in object detection.To obtain rotating bounding boxes,existing studies either rely on rotated anchoring schemes or adding complex rotating ROI transfer layers,leading to increased computational demand and reduced detection speeds.In this study,we propose a novel internal-external optimized convolutional neural network for arbitrary orientated object detection in optical remote sensing images.For the internal opti-mization,we designed an anchor-based single-shot head detector that adopts the concept of coarse-to-fine detection for two-stage object detection networks.The refined rotating anchors are generated from the coarse detection head module and fed into the refining detection head module with a link of an embedded deformable convolutional layer.For the external optimiza-tion,we propose an IOU balanced loss that addresses the regression challenges related to arbitrary orientated bounding boxes.Experimental results on the DOTA and HRSC2016 bench-mark datasets show that our proposed method outperforms selected methods. | Sihang Zhang Zhenfeng Shao Xiao Huang Linze Bai Jiaming Wang | 2021 | Geo-Spatial Information Science2021，24，4： | 1 |
| 3 | Perspective on antiferroelectrics for energy storage and conversion applications显示文摘As a close relative of ferroelectricity,antiferroelectricity has received a recent resurgence of interest driven by technological aspirations in energy-efficient applications,such as energy storage capacitors,solid-state cooling devices,explosive energy conversion,and displacement transducers.Though prolonged efforts in this area have led to certain progress and the discovery of more than 100 antiferroelectric materials over the last 70 years,some scientific and technological issues remain unresolved.Herein,we provide perspectives on the development of antiferroelectrics for energy storage and conversion applications,as well as a comprehensive understanding of the structural origin of antiferroelectricity and field-induced phase transitions,followed by design strategies for new lead-free antiferroelectrics.We also envision unprecedented challenges in the development of promising antiferroelectric materials that bridge materials design and real applications.Future research in these directions will open up new possibilities in resolving the mystery of antiferroelectricity,provide opportunities for comprehending structure-property correlation and developing antiferroelectric/ferroelectric theories,and suggest an approach to the manipulation of phase transitions for real-world applications. | Fangping Zhuo Huimin Qiao Jiaming Zhu Shuize Wang Yang Bai Xinping Mao Hong-Hui Wu | 2021 | Chinese Chemical Letters2021，32，7： | 0 |
| 4 | Highly Efficient Aligned Ion‑Conducting Network and Interface Chemistries for Depolarized All‑Solid‑State Lithium Metal Batteries显示文摘Improving the long-term cycling stability and energy density of all-solid-state lithium(Li)-metal batteries(ASSLMBs)at room temperature is a severe challenge because of the notorious solid–solid interfacial contact loss and sluggish ion transport.Solid electrolytes are generally studied as two-dimensional(2D)structures with planar interfaces,showing limited interfacial contact and further resulting in unstable Li/electrolyte and cathode/electrolyte interfaces.Herein,three-dimensional(3D)architecturally designed composite solid electrolytes are developed with independently controlled structural factors using 3D printing processing and post-curing treatment.Multiple-type electrolyte films with vertical-aligned micro-pillar(p-3DSE)and spiral(s-3DSE)structures are rationally designed and developed,which can be employed for both Li metal anode and cathode in terms of accelerating the Li+transport within electrodes and reinforcing the interfacial adhesion.The printed p-3DSE delivers robust long-term cycle life of up to 2600 cycles and a high critical current density of 1.92 mA cm^(−2).The optimized electrolyte structure could lead to ASSLMBs with a superior full-cell areal capacity of 2.75 mAh cm^(−2)(LFP)and 3.92 mAh cm^(−2)(NCM811).This unique design provides enhancements for both anode and cathode electrodes,thereby alleviating interfacial degradation induced by dendrite growth and contact loss.The approach in this study opens a new design strategy for advanced composite solid polymer electrolytes in ASSLMBs operating under high rates/capacities and room temperature. | Yongbiao Mu Shixiang Yu Yuzhu Chen Youqi Chu Buke Wu Qing Zhang Binbin Guo Lingfeng Zou Ruijie Zhang Fenghua Yu Meisheng Han Meng Lin Jinglei Yang Jiaming Bai Lin Zeng | 2024 | Nano-Micro Letters2024，16，5： | 0 |
| 5 | Genome transfer for the prevention of female infertility caused by maternal gene mutation显示文摘Poor oocyte quality is associated with early embryo developmental arrest and infertility.Maternal gene plays crucial roles in the regulation of oocyte maturation,and its mutation is a common cause of female infertility.However,how to improve oocyte quality and develop effective therapy for maternal gene mutation remains elusive.Here,we use Zar1 as an example to assess the feasibility of genome transfer to cure maternal gene mutationecaused female infertility.We first discover that cytoplasmic deficiency primarily leads to Zar1-null embryo developmental arrest by disturbing maternal transcript degradation and minor zygotic genome activation(ZGA)during the maternal-zygotic transition.We next perform genome transfer at the oocyte(spindle transfer or polar body transfer)and zygote(early pronuclear transfer or late pronuclear transfer)stages to validate the feasibility of preventing Zar1 mutationecaused infertility.We finally demonstrate that genome transfer either at the oocyte or at the early pronuclear stage can support normal preimplantation embryo development and produce live offspring.Moreover,those pups grow to adulthood and show normal fertility.Therefore,our findings provide an effective basis of therapies for the treatment of female infertility caused by maternal gene mutation. | Dandan Bai Jin Sun Yanping Jia Jiqing Yin Yalin Zhang Yanhe Li Rui Gao Xiling Du Kunming Li Jiaming Lin Zhifen Tu Yu Wang Jiaping Pan Shanshan Liang Yi Guo Jingling Ruan Xiaochen Kou Yanhong Zhao Hong Wang Cizhong Jiang Fengchao Wang Xiaoming Teng Wenqiang Liu Shaorong Gao | 2020 | Journal of Genetics and Genomics2020，47，6： | 0 |
| 6 | Observation of Refractive Index Line Shape in Ultrafast XUV Transient Absorption Spectroscopy显示文摘Ultrafast extreme ultraviolet (XUV) transient absorption spectroscopy measures the time- and frequencydependent light losses after light–matter interactions. In the linear region, the matter response to an XUV light field is usually determined by the complex refractive index ̃n. The absorption signal is directly related to the imaginary part of ̃n, namely, the absorption index. The real part of ̃n refers to the real refractive index, which describes the chromatic dispersion of an optical material. However, the real refractive index information is usually not available in conventional absorption experiments. Here, we investigate the refractive index line shape in ultrafast XUV transient absorption spectroscopy by using a scheme that the XUV pulse traverses the target gas jet off-center. The jet has a density gradient in the direction perpendicular to the gas injection direction, which induces deflection on the XUV radiation. Our experimental and theoretical results show that the shape of the frequency-dependent XUV deflection spectra reproduces the refractive index line profile. A typical dispersive refractive index line shape is measured for a single-peak absorption;an additional shoulder structure appears for a doublet absorption.Moreover, the refractive index line shape is controlled by introducing a later-arrived near-infrared pulse to modify the phase of the XUV free induction decay, resulting in different XUV deflection spectra. The results promote our understanding of matter-induced absorption and deflection in ultrafast XUV spectroscopy. | Mingze Sun Zixiang Jiang Yong Fu Yanrong Jiang Hongtao Hu Chunyuan Bai Zhongyao Yue Jiaming Jiang Hongqiang Xie Cheng Jin Ruxin Li P.B.Corkum D.M.Vileneuvere Ppeng Peng | 2023 | Ultrafast Science2023，3，4： | 0 |
| 7 | Enhanced nanocrystalline stability of BCC iron via copper segregation显示文摘Nanocrystalline alloys are known for their high density of grain boundaries(GBs),which results in low thermal stability and a tendency for coarsening.In this work,we investigated Fe–Cu alloys to explore the effects of Cu concentration on the thermal stability of nanocrystalline samples.Using hybrid molecular dynamics(MD)and Monte Carlo(MC)simulations,annealing treatments of nanocrystalline samples with varied Cu concentrations were conducted.The simulation results revealed that Cu atoms tended to accumulate at GBs.Subsequently,the model with Cu segregation was subjected to mechanical creep loading at various temperatures.Through the analysis of atomic structure evolution during creep deformation,it was found that Cu segregation efficiently stabilizes GBs and restricts their movement.The present findings highlight that the thermal stability of nanocrystalline Fe–Cu alloys can be effectively improved by introducing suitable Cu segregation at GBs. | Feiyang Wang Linshuo Dong Hong-Hui Wu Penghui Bai Shuize Wang Guilin Wu Junheng Gao Jiaming Zhu Xiaoye Zhou Xinping Mao | 2023 | Progress in Natural Science:Materials International2023，33，2： | 0 |
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