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Irregular scene text detection via attention guided border labeling

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Science China(Information Sciences) 2019年第12期62卷 33-43页

作者： Jie CHEN Zhouhui LIAN yizhi wang Yingmin TANG Jianguo XIAO wangxuan Institute of Computer Technology Peking University Center For Chinese Font Design and Research Peking University

Scene text detection plays an important role in many computer vision applications. With the help of recent deep learning techniques, multi-oriented text detection that was considered to be quite challenging has been solved to some extent. However, most existing methods still perform poorly for curved text detection, mainly due to the limitation of their text representations(e.g., horizontal boxes, rotated rectangles or quadrangles). To solve this problem, we propose a novel method to detect irregular scene texts based on instance-aware segmentation. The key idea is to design an attention guided semantic segmentation model to precisely label the weighted borders of text regions. Experiments conducted on several widely-used benchmarks demonstrate that our method achieves superior results on curved text datasets(i.e., with F-score80.1% and 78.8% for the CTW1500 and Total-Text, respectively) and obtains comparable performance on multi-oriented text datasets compared to the state-of-the-art approaches.

关键词： scene text detection weighted border attention mechanisms curved text semantic segmentation

Combination of rhamnolipid and biochar in assisting phytoremediation of petroleum hydrocarbon contaminated soil using Spartina anglica

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Journal of Environmental Sciences 2019年第11期31卷 107-118页

作者： Meinan Zhen Hongkun Chen Qinglong Liu Benru Song yizhi wang Jingchun Tang College of Environmental Science and Engineering Nankai University Tianjin 300350 China State Key Lab of Petroleum Pollution Control CNPC Research Institute of Safety & Environmental Technology Beijing 102206 China Tianjin Tianmai Energy Saving Equipment Co.LTD Tianjin 300393 China Key Laboratory of Pollution Processes and Environmental Criteria Ministry of Education Tianjin 300071 China Tianjin Key Laboratory of Environmental Remediation and Pollution Control Tianjin 300071 China

Biochar (BC) and rhamnolipid (RL) is used in bioremediation of petroleum hydrocarbons,however,the combined effect of BC and RL in phytoremediation has not been studied until *** this paper,the phytoremediation of petroleum hydrocarbon-contaminated soil using novel plant Spartina anglica was enhanced by the combination of biochar (BC) and rhamnolipid (RL).Samples of petroleum-contaminated soil (10,30 and 50 g/kg) were amended by BC,BC+ RL and rhamnolipid modified biochar (RMB),*** 60 day's cultivation,the removal rate of total petroleum hydrocarbons (TPHs) for unplanted soil (UP),planted soil (P),planted soil with BC addition (P-BC),planted soil with BC and RL addition (P-BC + RL) and planted soil with addition ofRMB (P-RMB) were 8.6%,19.1%,27.7%,32.4% and 35.1% in soil with TPHs concentration of 30 g/kg,*** with UP,the plantation of Spartina anglica significantly decreased the concentration of C8-14 and tricyclic ***,the application of BC and RMB alleviated the toxicity of petroleum hydrocarbons to Spartina anglica via improving plant growth with increasing plant height,root vitality and total chlorophyll ***-throughput sequencing result indicated that rhizosphere microbial community of Spartina anglica was regulated by the application of BC and RMB,with increase of bacteria and plant mycorrhizal symbiotic fungus in biochar and RMB amended soil.

关键词： Biochar Rhamnolipid Phytoremediation Spartina anglica Petroleum HTS

Reduced graphene oxide-based calcium alginate hydrogel as highly efficient solar steam generation membrane for desalination

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Frontiers of Materials Science 2021年第1期15卷 138-146页

作者： Gang LOU yizhi wang Yun MA Jianlong KOU Fengmin WU Jintu FAN Zhejiang Provincial Key Laboratory of Solid State Optoelectronic Devices Zhejiang Normal UniversityJinhua 321004China Department of Fiber Science and Apparel Design Cornell UniversityIthacaNew York 14853-4401USA

Solar-driven evaporation has been considered as one of the potentialmethods for desalination and sewage ***,optical concentrators andcomplex multi-component systems are essential in advanced technologies,resulting inlow efficiency and high ***,we synthesize a reduced graphene oxide-basedporous calcium alginate(CA-rGO)hydrogel which exhibits good performance in *** than 90%of the light in the whole spectrum can be ***,the water vapor escapes from the CA-rGO film extremely *** waterevaporation rate is 1.47 kg·m^(-2)·h^(-1),corresponding to the efficiency 77%under only 1 kW'm 2 *** high evaporation efficiency is attributed to the distinctive structureof the film,which contains inherent porous structure of hydrogel enabling rapid watertransport throughout the film,and the concave water surfaces formed in the hydrophilicpores provide a large surface area for *** rGO divides theevaporation surface and provides a longer three-phase evaporation *** test onmultiple cyclic radiation shows that the material has good *** CA-rGO hydrogelmay have promising application as a membrane for solar steam generation indesalination and sewage treatment.

关键词： solar-driven evaporation CA-rGO film desalination

Crystal structure and functional implication of the RUN domain of human NESCA

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Protein & Cell 2012年第8期3卷 609-617页

作者： Qifan Sun Chuanhui Han Lan Liu yizhi wang Hongyu Deng Lin Bai Tao Jiang National Laboratory of Biomacromolecules Institute of BiophysicsChinese Academy of SciencesBeijing 100101China Graduate University of Chinese Academy of Sciences Beijing 100039China Chinese Academy of Sciences Key Laboratory of Infection and Immunity Institute of BiophysicsChinese Academy of SciencesBeijing 100101China

NESCA,a newly discovered signaling adapter protein in the NGF-pathway,contains a RUN domain at its *** we report the crystal structure of the NESCA RUN domain determined at 2.0-Å*** overall fold of the NESCA RUN domain comprises nine helices,resembling the RUN domain of RPIPx and the RUN1 domain of ***,compared to the other RUN domains,the RUN domain of NESCA has significantly different surface electrostatic distributions at the putative GTPase-interacting *** demonstrate that the RUN domain of NESCA can bind H-Ras,a downstream signaling molecule of TrkA,with high ***,NESCA RUN can directly interact with *** results provide new insights into how NESCA participates in the NGF-TrkA signaling pathway.

关键词： NESCA RUN domain crystal structure TrkA Ras

香佩疗法对脑卒中后睡眠障碍患者的临床效果研究

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军事护理 2025年第2期42卷 10-13页

作者：李秀霞卢玮旎王异之李壮苗福建中医药大学附属康复医院神经康复科福建中医药大学护理学院

目的探讨香佩疗法对脑卒中后睡眠障碍患者的临床效果，为改善其睡眠状况提供方案。方法 2021年3月至2023年6月，采用便利选取福建省某三级甲等康复医院脑病康复科的脑卒中后睡眠障碍患者为研究对象，并将其随机分为观察组(n=40)和对照... 详细信息

目的探讨香佩疗法对脑卒中后睡眠障碍患者的临床效果，为改善其睡眠状况提供方案。方法 2021年3月至2023年6月，采用便利选取福建省某三级甲等康复医院脑病康复科的脑卒中后睡眠障碍患者为研究对象，并将其随机分为观察组(n=40)和对照组(n=39)。两组均接受常规治疗、护理和康复训练，观察组给予佩戴中药香囊，对照组给予佩戴外观相同安慰剂香囊，干预时间4周，均在医院进行。每日21:00到次日7:00,患者睡眠时香囊距离头部30 cm以内，次日7:00后将香囊收纳包好、避免挥发。干预前及干预2周、4周后采用匹兹堡睡眠质量指数(Pittsburgh sleep quality index, PSQI)评估两组患者睡眠质量，干预2周、4周后比较两组患者的睡眠疗效。结果除睡眠障碍及催眠药物外，两组患者PSQI的各项评分及总分在时间、组别及交互效应上的差异均有统计学意义(均P<0.05);干预4周后，观察组疗效标准临床有效率为82.50%优于对照组的48.72%,差异有统计学意义(P<0.05)。结论香佩疗法可改善脑卒中后睡眠障碍患者的睡眠质量，提高睡眠疗效，值得临床推广。

关键词：香佩疗法脑卒中睡眠障碍中医护理

Experimental demonstration of quantum transport enhancement using time-reversal symmetry breaking on a silicon photonic chip

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Science China(Physics,Mechanics & Astronomy) 2022年第10期65卷 2-9页

作者： Yang wang Xinyao Yu Shichuan Xue yizhi wang Junwei Zhan Chao Wu Pingyu Zhu Qilin Zheng Miaomiao Yu Yingwen Liu Xiaogang Qiang Junjie Wu Xuejun Yang Ping Xu Institute for Quantum Information&State Key Laboratory of High Performance Computing College of Computer Science and TechnologyNational University of Defense TechnologyChangsha 410073China National Innovation Institute of Defense Technology Academy of Military SciencesBeijing 100071China National Laboratory of Solid State Microstructures and School of Physics Nanjing UniversityNanjing 210093China

The continuous-time quantum walk is a basic model for studying quantum transport and developing quantum-enhanced algorithms. Recent studies show that by introducing a phase into the standard continuous-time quantum walk model, the time-reversal symmetry can be broken without changing the Hermitian property of the Hamiltonian. The time-reversal symmetry breaking quantum walk shows advantages in quantum transport, such as perfect state transfer, directional control, transport speedup, and quantum transport efficiency enhancement. In this work, we implement the time-reversal symmetry breaking quantum walks on a reconfigurable silicon photonic chip and demonstrate the enhancement introduced by breaking time-reversal symmetry. Perfect state transfer on a three-site ring, a quantum switch implemented on a six-site graph, and transport speedup using a linear chain of triangles are demonstrated with high fidelity. Time-reversal asymmetry has also been used in a simplified light-harvesting model,implying the potential of time-reversal symmetry breaking in photosynthesis investigations.

关键词： quantum walk time-reversal asymmetry quantum transport

Ultrafast Nonlinear Optical Excitation Behaviors of Mono-and Few-Layer Two Dimensional MoS2

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Photonic Sensors 2019年第1期9卷 1-10页

作者： yizhi wang Zhongyuan GUO Jie YOU Zhen ZHANG Xin ZHENG Xiangai CHENG College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China State Key Laboratory of High Performance Computing National University of Defense TechnologyChangsha 410073China National Innovation Institute of Defense Technology Academy of Military Sciences PLA ChinaBelting 100010China State Key Laboratory of Laser Interaction with Matter Northwest Institute of Nuclear TechnologyXi 'an 710024China

The layered MoS2 has recently attracted significant attention for its excellent nonlinear optical ***,the ultrafast nonlinear optical (NLO)absorption and excited carrier dynamics of layered MoS2(monolayer,3-4 layers,and 6-8 layers)are investigated via Z-scan and transient absorption *** experimental results reveal that NLO absorption coefficients of these MoS2 increase from-27×10^3cm/GW to -11×10^3cm/GW with more layers at 400-nm laser excitation,while the values decrease from 2.0×10^3cm/GW to 0.8×10^3cm/GW at *** addition, at high pump fluence,when the NLO response occurs,the results show that not only the reformation of the excitonic bands,but also the recovery time of NLO response decreases from 150ps to lOOps with an increasing number of layers,while the reductive energy of A excitonic band decreases from *** to *** intriguing NLO response of MoS2 provides excellent potentials for the next-generation optoelectronic and photonic devices.

关键词： Ultrafast optics two-dimensional materials ultrafast photonic devices

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380压铸合金成分的变化对力学性能的影响

特种铸造及有色合金 2000年第1期20卷 52-53页

作者：王益志上海交通大学

试验分析了３８０压铸合金化学成分的不同配比对力学性能的影响。结果表明高合金含量配制的３８０铝合金与低合金含量配制的３８０铝合金相比，前者抗拉强度、屈服强度及硬度高，而后者伸长率高，标准的３８０铝合金成分则在二者之间。... 详细信息

试验分析了３８０压铸合金化学成分的不同配比对力学性能的影响。结果表明高合金含量配制的３８０铝合金与低合金含量配制的３８０铝合金相比，前者抗拉强度、屈服强度及硬度高，而后者伸长率高，标准的３８０铝合金成分则在二者之间。实际应用中，应根据零件对力学性能的具体要求合理选配。

关键词：压铸合金化学成分力学性能铝合金

ImSpiRE: image feature-aided spatial resolution enhancement method

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Science China(Life Sciences) 2025年第1期68卷 272-283页

作者： Yuwei Hua yizhi Zhang Zhenming Guo Shan Bian Yong Zhang State Key Laboratory of Cardiovascular Diseases and Medical Innovation Center Institute for Regenerative MedicineDepartment of NeurosurgeryShanghai East HospitalShanghai Key Laboratory of Signaling and Disease ResearchFrontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China

The resolution of most spatially resolved transcriptomic technologies usually cannot attain the single-cell level,limiting their applications in biological ***,we introduce ImSpiRE,an image feature-aided spatial resolution enhancement method for in situ capturing spatial *** the information stored in histological images,ImSpiRE solves an optimal transport problem to redistribute the expression profiles of spots to construct new transcriptional profiles with enhanced resolution,together with extending the gene expression profiles into unmeasured *** to multiple datasets confirm that ImSpiRE can enhance spatial resolution to the subspot level while contributing to the discovery of tissue domains,signaling communication patterns,and spatiotemporal characterization.

关键词： spatial transcriptome histological images spatial resolution enhancement