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Pluggable multitask diffractive neural networks based on cascaded metasurfaces

Opto-Electronic Advances 2024年第2期7卷 23-31页

作者： Cong He Dan Zhao fei fan Hongqiang Zhou Xin Li Yao Li Junjie Li fei Dong Yin-Xiao Miao Yongtian Wang Lingling Huang Beijing Engineering Research Center of Mixed Reality and Advanced Display Key Laboratory of Photoelectronic Imaging Technology and System of Ministry of Education of ChinaSchool of Optics and PhotonicsBeijing Institute of TechnologyBeijing 100081China Institute of Modern Optics Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network TechnologyNankai UniversityTianjin 300350China Department of Physics and Optoelectronics Faculty of ScienceBeijing University of TechnologyBeijing 100124China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100191China Beijing Aerospace Institute for Metrology and Measurement Technology Beijing 100076China

Optical neural networks have significant advantages in terms of power consumption,parallelism,and high computing speed,which has intrigued extensive attention in both academic and engineering *** has been considered as one of the powerful tools in promoting the fields of imaging processing and object ***,the existing optical system architecture cannot be reconstructed to the realization of multi-functional artificial intelligence systems *** push the development of this issue,we propose the pluggable diffractive neural networks(P-DNN),a general paradigm resorting to the cascaded metasurfaces,which can be applied to recognize various tasks by switching internal *** the proof-of-principle,the recognition functions of six types of handwritten digits and six types of fashions are numerical simulated and experimental demonstrated at near-infrared ***,the proposed paradigm not only improves the flexibility of the optical neural networks but paves the new route for achieving high-speed,low-power and versatile artificial intelligence systems.

关键词： optical neural networks diffractive deep neural networks cascaded metasurfaces

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Chinese herbal medicine combined with Western medicine for Mycoplasma pneumoniae pneumonia in children:An overview of systematic reviews

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Journal of Traditional Chinese Medical Sciences 2024年第1期11卷 131-139页

作者： Si Zhang Xuan Zhang Yuehua Cui Juan Huang fei fan Simeng Wang fei Han Guang'anmen Hospital China Academy of Chinese Medical SciencesBeijing 100053China School of Chinese Medicine Hong Kong Baptist UniversityHong Kong 999077China

Objective:To summarize the characteristics and evaluate the quality of the methodology and evidence within systematic reviews(SRs)of Chinese herbal medicine(CHM)for Mycoplasma pneumoniae pneumonia(MPP)***:SRs of randomized controlled trials were searched using PubMed,the Cochrane Library,Embase,the Chinese National Knowledge Infrastructure Databases(CNKI),the Chinese Scientific Journals Database(VIP),Wanfang,and the SinoMed *** on the use of CHM alone or in combination with Western medications for MPP in children were *** study compared the effects of Western medicine alone with those of *** evidence quality using the A Measurement Tool to Assess Systematic Reviews(AMSTAR)2,the Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA)2020,and the Grading of Recommendations,Assessment,Development,and Evaluation(GRADE)*** primary indicators were the total effective rate,fever subsidence time,and cough disappearance *** secondary outcomes were pulmonary rale disappearance time,average hospitalization time,lung X-ray infiltrate disappearance time,immunological indices,and inflammatory cytokine ***:Twelve relevant SRs were included;75%(9/12)were assessed as very low quality,and 25%(3/12)Were rated as low quality using the AMSTAR 2 *** to the PRISMA 2020 checklist,the average SR score was 20.3 out of a 27 point *** all SRs,CHM demonstrated improvement in symptoms and signs among children with *** evidence quality using the GRADE criteria ranged from"very low"(>50%)to"moderate"(<5%).The most common downgrading factor was imprecision,followed by publication bias and ***:This overview highlights the limited quality of the methodology and evidence of the included *** the included studies showed the beneficial effects of CHM on MPP in children,it was difficult to draw firm conclusions owing to methodological flaws.

关键词： Chinese herbal medicine Mycoplasma pneumoniae pneumonia Children Overview Systematic review

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Improvement in hydrogen storage performance of MgH_(2) by vanadium doped with ZIF-8 derived a single-atom catalyst V-N-C

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Rare Metals 2024年第6期43卷 2623-2635页

作者： fei-fan Hong Wei-Tao Shi Ruo-Lin Zhao Yi fan Zi-Qi Liu Si-Zhi Ding Hai-Zhen Liu Wen-Zheng Zhou Jin Guo Zhi-Qiang Lan Guangxi Novel Battery Materials Research Center of Engineering Technology and Center on Nanoenergy Research Guangxi Colleges and Universities Key Laboratory of Blue Energy and Systems IntegrationCarbon Peak and Neutrality Science and Technology Development InstituteSchool of Physical Science and TechnologyGuangxi UniversityNanning 530004China Nanning Engineering Technology Research Center for Power Transmission System of New Energy Vehicle Transportation CollegeNanning UniversityNanning 530200China

Herein,the successful preparation of a singleatom catalyst V-N-C using vanadium-doped zeolitic imidazolate framework(ZIF)-8 as a precursor is *** experimental results showed that the V-N-C had a good promoting effect on the hydrogen storage performance of MgH_(2),and the optimal addition amount of V-N-C was 10wt%.The hydrogenation and dehydrogenation apparent activation energies of 10 wt%V-N-C-catalyzed MgH_(2)were reduced by 44.9 and 53.5 kJ·mol^(-1),respectively,compared to those of additive-free MgH_(2).The 10 wt%V-N-C-catalyzed MgH_(2)could reabsorb 5.92 wt%of hydrogen in 50 min at 150℃,with a capacity retention rate of 99.1%after 30 cycles of hydrogen absorption and *** analysis showed that V-N-C was partially transformed into VN and metallic V when it was milled with MgH_(2);the in-situ-formed VN and metallic V played an important role in improving the hydrogen storage performance of MgH_(2).This approach provides a potential solution for obtaining high-performance Mg-based hydrogen storage materials through synergistic interactions between V,N and C.

关键词： MgH_(2) Hydrogen storage materials Catalyst Hydrogen storage perormance

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Population size estimates based on GPS telemetry

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Zoological Research 2024年第1期45卷 36-38页

作者： Yu-Xuan fan Pu-Zheng Xie Chi Ma Ting Chen Xiao Ye Hua-Lin Xu Qiong Yang Peng-fei fan School of Life Sciences Sun Yat-sen UniversityGuangzhouGuangdong 510275China College of Agriculture and Biological Sciences DaliYunnan 671003China Neilingding-Futian National Nature Reserve of Guangdong ShenzhenGuangdong 518040China

DEAR EDITOR,Accurate estimation of population size is a crucial issue in wildlife population ecology and *** Global Positioning System(GPS)collars are well recognized as an effective method for monitoring wildlife behavior,their application in direct wildlife population size estimation remains *** this study,GPS telemetry was employed to survey a rhesus macaque(Macaca mulatta)population on Neilingding Island in Guangdong,*** May 2021 to April 2022,32 macaques across nine groups were fitted with GPS collars,producing a dataset of 109739 location *** data from all tracked individuals revealed the annual home ranges of the nine groups.

关键词： China Island size

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Synergistic effect between Er-doped MoS_(2)nanosheets and interfacial Mo-N coupling phases for enhanced electrocatalytic hydrogen evolution

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Rare Metals 2024年第3期43卷 1301-1308页

作者： Nian-Peng Li Lei Zhang Hua Zhang fan-fei Min Lei Wang Sam Toan Xi-Jun Liu Guang-Zhi Hu State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines School of Materials Science and EngineeringAnhui University of Science and TechnologyHuainan232001China Donghai Laboratory Zhoushan316021China Department of Chemical Engineering University of Minnesota-DuluthDuluthMN55812USA School of Ecology and Environmental Science Institute for Ecological Research and Pollution Control of Plateau LakesYunnan UniversityKunming650504China MOE Key Laboratory of New Processing Technology for Non-Ferrous Metals and Materials Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured MaterialsGuangxi UniversityNanning530004China

Hydrogen production via electrochemical water splitting is a promising and green *** one of the most representative transition metal sulfides layered materials,Molybdenum disulfide(MoS_(2))has immense potential for the hydrogen evolution reaction(HER).We successfully prepared a nitrogen-doped carbon(NC)in situ-grown erbium-doped MoS_(2)polyhedral structure(Er-MoS_(2)/NC)that incorporates an interfacial Mo-N coupling phase.

关键词： hydrogen interfacial coupling

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Nanodiamond:a promising metal-free nanoscale material in photocatalysis and electrocatalysis

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Rare Metals 2024年第8期43卷 3501-3552页

作者： Xiao-Wu Gao Zi-Wei Zhao Yang He Sai-fei fan Ke-Ran Jiao Si-Yu Lou Xin-Yue Han Peng-fei Song Rong Cai Zhun Hu Zhong-Jie Jiang Yong-Jie Wang Jia-Qi Zhu Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems School of ScienceHarbin Institute of TechnologyShenzhen 518055China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080China School of Advanced Technology Xi'an Jiaotong-Liverpool UniversitySuzhou215000China Department of Biosciences Rice UniversityHoustonTX 77251USA Institute of Industrial Catalysis School of Chemical Engineering and TechnologyXi'an Jiaotong UniversityXi'an 710049China Guangzhou Key Laboratory for Surface Chemistry of Energy Materials New Energy Research Institute&Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsCollege of Environment and EnergySouth China University of TechnologyGuangzhou 510006China

Benefiting from its surface-rich functional groups,eco-friendliness,impressive electrochemical properties,excellent light absorption,structural tunability at the atomic/morphological level,and ultra-high stability under harsh conditions,nanodiamond has emerged as a promising carbon-based non-metallic material in the field of energy conversion such as electrocatalysis and ***,nanodiamond,as a new generation of green catalysts,can overcome the poisoning of catalysts by complex pollutants in advanced oxidation processes,thus effectively removing organic matter from water,which is unparalleled in reducing the cost of water purification and avoiding secondary cross-contamination of water by traditional heavy metal-based ***,we review the research and development of nanodiamonds as major electrocatalysts and photocatalysts for energy conversion and for air/water treatment for environmental *** relevant properties,trimming strategy,mechanistic understanding,and design principles of nanodiamond as a catalyst are described,as well as the challenges and prospects of this emerging field.

关键词： Carbon materials Nanodiamond Electrocatalysis Photocatalysis Energy conversion Pollutant treatment

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Early gastric composite tumor comprising signet-ring cell carcinoma and mucosa-associated lymphoid tissue lymphoma:A case report

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World Journal of Gastroenterology 2024年第38期30卷 4232-4238页

作者： Yi-fan Jia fei-fan Chen Li Yang Yun-Xia Ye Yi-Zhu Gao Wen-Yan Zhang Jin-Lin Yang Department of Gastroenterology and Hepatology University of Oxford Huaxi Joint Centre for Gastrointestinal CancerFrontiers Science Center for Disease-Related Molecular NetworkWest China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Pathology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Emergency West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Composite tumors are neoplasms comprising two distinct,yet intermingling,cell *** paper reports a rare phenomenon where early gastric signet-ring cell carcinoma(SRCC)and gastric mucosa-associated lymphoid tissue(MALT)lymphoma coexist within the same *** SUMMARY A 40-year-old woman presented to the West China Hospital for examination,which revealed a whitish,shallow,and uneven mucosal lesion in the *** lesion was diagnosed as a poorly differentiated adenocarcinoma,including SRCC with atypical lymphoid hyperplasia associated with Helicobacter pylori infection,based on histopathological examination of the biopsy *** lesion was excised using segmental ***,histological exami-nation of the surgical specimen confirmed that it was a poorly differentiated gastric adenocarcinoma with features of SRCC and MALT *** two entities were stage I and coexisted in the same *** It is uncommon for gastric SRCC and MALT lymphoma to coexist without distinct *** resection is effective for these lesions.

关键词： Gastric cancer Composite tumors Early stage Signet-ring cell carcinoma Mucosa-associated lymphoid tissue lymphoma Case report

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Interplay between mesenchymal stem cells and macrophages:Promoting bone tissue repair

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World Journal of Stem Cells 2024年第4期16卷 375-388页

作者： fei-fan Zhang Yang Hao Kuai-Xiang Zhang Jiang-Jia Yang Zhi-Qiang Zhao Hong-Jian Liu Ji-Tian Li Molecular Biology Lab Henan Luoyang Orthopedic Hospital(Henan Provincial Orthopedic Hospital)Zhengzhou 450000Henan ProvinceChina Graduate School Hunan University of Chinese MedicineChangsha 410208Hunan ProvinceChina Graduate School Henan University of Chinese MedicineZhengzhou 450046Henan ProvinceChina Department of Orthopaedics The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina

The repair of bone tissue damage is a complex process that is well-orchestrated in time and space,a focus and difficulty in orthopedic *** recent years,the success of mesenchymal stem cells(MSCs)-mediated bone repair in clinical trials of large-area bone defects and bone necrosis has made it a candidate in bone tissue repair engineering and regenerative *** are closely related to *** one hand,MSCs regulate the immune regulatory function by influencing macrophages proliferation,infiltration,and phenotype polarization,while also affecting the osteoclasts differentiation of *** the other hand,macrophages activate MSCs and mediate the multilineage differentiation of MSCs by regulating the immune *** cross-talk between MSCs and macrophages plays a crucial role in regulating the immune system and in promoting tissue *** full use of the relationship between MSCs and macrophages will enhance the efficacy of MSCs therapy in bone tissue repair,and will also provide a reference for further application of MSCs in other diseases.

关键词： Bone tissue damage Inflammation Macrophages Mesenchymal stem cells Tissue regeneration

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畅通城乡经济循环的现实障碍与应对策略

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学术前沿 2024年第4期 72-78页

作者：范斐武汉大学经济与管理学院

城乡经济循环是贯彻新发展理念、构建新发展格局的关键一环,畅通城乡经济循环是推进乡村振兴、实现共同富裕的重要抓手,对于实现中国式现代化具有重要推动作用。当前,我国仍存在城乡供需矛盾、城乡要素双向流动不畅、县域经济枢纽功能... 详细信息

城乡经济循环是贯彻新发展理念、构建新发展格局的关键一环,畅通城乡经济循环是推进乡村振兴、实现共同富裕的重要抓手,对于实现中国式现代化具有重要推动作用。当前,我国仍存在城乡供需矛盾、城乡要素双向流动不畅、县域经济枢纽功能不强、乡村振兴内生动力不足等现实障碍。因此,需深化供给及需求端改革,充分激发农村内需;打破城乡要素流动的制度壁垒,优化要素市场化配置机制;推动县域经济高质量发展,强化县域枢纽功能;加强城市群建设,全面推动乡村振兴。

关键词：城乡经济循环乡村振兴现实堵点优化路径

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双螺旋液晶聚(2,2'-二磺酰基-4,4'-联苯胺对苯二甲酰胺)复合材料及其在锂电池中的应用

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高分子学报 2024年第7期55卷 826-840页

作者：纪非凡汪莹聚合物分子工程国家重点实验室复旦大学高分子科学系上海200438

聚(2,2'-二磺酰基-4,4'-联苯胺对苯二甲酰胺)(PBDT)是一种主链型液晶聚电解质,其具有全芳香分子结构单元、超高的磺酸根密度以及可以形成分子内和分子间氢键网络的酰胺基团.本文介绍了PBDT在水溶液中表现出的一系列特殊性质,包括自组装... 详细信息

聚(2,2'-二磺酰基-4,4'-联苯胺对苯二甲酰胺)(PBDT)是一种主链型液晶聚电解质,其具有全芳香分子结构单元、超高的磺酸根密度以及可以形成分子内和分子间氢键网络的酰胺基团.本文介绍了PBDT在水溶液中表现出的一系列特殊性质,包括自组装成双螺旋构象、溶致向列液晶相、微米级超长持续长度以及沿聚合物链的各向异性离子传输.指出通过PBDT分子链的多尺度分子构象以及其选择性的离子传输特性,可以设计出具有各种功能的复合材料,例如PBDT基水凝胶、离子凝胶以及纳米复合材料.分析表明PBDT中高度取向的刚性棒状结构以及各向异性的反离子快速传输机制,不仅实现了PBDT在固态电解质和锂电池电极黏结剂等领域的潜在应用,同时也预示着与PBDT有类似性质的刚性棒状聚电解质材料的开发在能源储存与转化领域以及其他相关应用方向的潜在应用价值.

关键词：刚性棒状聚电解质双螺旋构象液晶相各向异性离子传输锂电池

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