检索结果-南通市图书馆

Chinese Journal of Electronics 2024年

作者： Jiwei LIAN Chun GENG xue lu Dazhi DING School of Microelectronics (School of Integrated Circuits) Nanjing University of Science and Technology State Key Laboratory of Millimeter Waves Southeast University Qian xuesen College Nanjing University of Science and Technology

A wideband circularly polarized(CP) aperture-coupled metasurface antenna operating at millimeterwave frequency spectrum in substrate-integrated waveguide(SIW) technology is proposed. Such a proposed metasurface antenna is composed of two substrates. The first substrate contains an end-shorted SIW section with a slot etched. The introduced metasurface is printed on the top of the second substrate. The metasurface is comprised of3 × 3 unit cells, each of which contains two interconnected patches and two parasitic patches. The working mechanism of the proposed metasurface antenna is illustrated in details. The proposed metasurface antenna has wide impedance bandwidth and axial ratio(AR) bandwidth, which are 66.7% and 40%, respectively. Using the proposed metasurface antenna, a 4 × 4 CP metasurface antenna array with an impedance bandwidth of 24%, an AR bandwidth of 30%, and a peak gain of 18.7 dBic in simulation is developed in this paper for millimeter-wave applications.

关键词：

Comparative Study on the Immunogenicity and Efficacy of Different Post-exposure Intramuscular Rabies Vaccination Regimens in China

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第2期37卷 178-186页

作者： SONG Yun HE Ying lu xue Xin ZHANG Xiao Mei JIANG XIAO Lin SONG Qing HUANG xue Yong MA Hong Xia YU Peng Cheng ZHU Wu Yang Henan Provincial Center for Disease Control and Prevention Infectious Disease Prevention and Control InstituteHenan Provincial Key Laboratory of Infectious Disease PathogensZhengzhou 450000HenanChina National Institute for Viral Disease Control and Prevention China CDCKey Laboratory of BiosafetyNational Health CommissionBeijing 102206China Shandong Provincial Center for Disease Control and Prevention Jinan 250014ShandongChina Qingdao Chengyang District Center for Disease Control and Prevention Qingdao 266108ShandongChina

Objective This study aimed to compare the current Essen rabies post-exposure immunization schedule(0-3-7-14-28)in China and the simple 4-dose schedule(0-3-7-14)newly recommended by the World Health Organization in terms of their safety,efficacy,and *** Mice were vaccinated according to different immunization schedules,and blood was collected for detection of rabies virus neutralizing antibodies(RVNAs)on days 14,21,28,35,and 120after the first ***,different groups of mice were injected with lethal doses of the CVS-11 virus on day 0,subjected to different rabies immunization schedules,and assessed for morbidity and death *** a clinical trial,185 rabies-exposed individuals were selected for post-exposure vaccination according to the Essen schedule,and blood was collected for RVNAs detection on days 28and 42 after the first *** A statistically significant difference in RVNAs between mice in the Essen and 0-3-7-14 schedule groups was observed on the 35th day(P0.05)in RVNAs levels at any time *** post-exposure immune protective test showed that the survival rate of mice in the control group was 20%,whereas that in the immunization groups was 40%.In the clinical trial,the RVNAs positive conversion rates on days 28(14 days after 4 doses)and 42(14 days after 5 doses)were both 100%,and no significant difference in RVNAs levels was observed(P>0.05).Conclusion The simple 4-dose schedule can produce sufficient RVNAs levels,with no significant effect of a delayed fourth vaccine dose(14–28 d)on the immunization potential.

关键词： Rabies Post-exposure immunization Essen regimen RVNAs

Room-temperature phonon-coupled single-photon emission in hexagonal boron nitride

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2024年第5期67卷 109-114页

作者： Jia-Min Lai Qing-Hai Tan Feilong Song Haonan Chang Yanpei Lv xue-lu Liu Jinghua Teng Weibo Gao Ping-Heng Tan Jun Zhang State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing100083China Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education&Research Institute of Materials Science Shanxi Normal UniversityTaiyuan 030000China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingapore 637371Singapore Institute of Materials Research and Engineering(IMRE) Agency for ScienceTechnology and Research(A*STAR)Singapore 138634Singapore

Photon-lattice(phonon)coupling is fundamental to light-matter interaction,particularly when it reaches the quantum limit of the phonon-coupled single-photon emission,which holds great potential for quantum manipulation and quantum information ***,we report single defect state-phonon coupling in hexagonal boron nitride(h BN)at room *** ultrabroad spectrum of single-photon emissions can be achieved by selecting the excitation *** photoluminescence excitation spectroscopy,we observe single-phonon-assisted resonance-enhanced single-photon emission,along with multiple phonon replicas that herald the creation of phonon Fock *** also develop a transition model to gain insight into the physical process behind the single defect state-phonon *** work sets the stage for manipulating electron-phonon coupling state with single quantum-level precision at room temperature.

关键词： temperature phonon hexagonal

在线全文

学校读者我要写书评

暂无评论

中国式现代化国际传播的四重路径

经济问题 2024年第4期 1-6页

作者：卢雪西安工业大学马克思主义学院陕西西安710021

中国式现代化是人类文明新形态,也是中国国际传播的关键议题。提升中国式现代化国际传播能力是增强国际社会对中国式现代化认同的重要举措。提高中国式现代化国际传播,需提升主体能力,增强传播的自信;注重优化传播内容,提升传播的实效性... 详细信息

中国式现代化是人类文明新形态,也是中国国际传播的关键议题。提升中国式现代化国际传播能力是增强国际社会对中国式现代化认同的重要举措。提高中国式现代化国际传播,需提升主体能力,增强传播的自信;注重优化传播内容,提升传播的实效性;完善传播平台,拓展传播的路径;精准传播受众,增强传播的针对性。只有实现传播主体、内容、平台、受众四个方面的有效链接和良性互动,才能构筑完整体系,发挥协同作用,提升中国式现代化国际传播的能力。

关键词：中国式现代化国际传播提升路径

Urgent call for attention to diabetes-associated hospital infections

在线全文

学校读者我要写书评

暂无评论

World Journal of Diabetes 2024年第8期15卷 1683-1691页

作者： xue-lu Yu Li-Yun Zhou Xiao Huang Xin-Yue Li Qing-Qing Pan Ming-Ke Wang Ji-Shun Yang Department of Disease Control and Prevention Naval Medical Center of PLANaval Medical UniversityShanghai 200052China Medical Care Center Naval Medical Center of PLANaval Medical UniversityShanghai 200052China

In this editorial,we discuss the recent article by Zhao et al published in the World Journal of Diabetes,which highlights the importance of recognizing the risk indicators associated with diabetes mellitus(DM).Given the severe implications of healthcare-associated infections(HAIs)in hospitalized individuals-such as heightened mortality rates,prolonged hospitalizations,and increased costs-we focus on elucidating the connection between DM and nosocomial *** patients are susceptible to pathogenic bacterial invasion and subsequent infection,with some already harboring co-infections upon ***,DM is an important risk factor for nosocomial urinary tract infections and surgical site infections,which may indirectly affect the occurrence of nosocomial bloodstream infections,especially in patients with DM with poor glycemic *** evidence regarding the impact of DM on healthcare-associated pneumonias remains inconclusive,attention to this potential association is *** patients with DM should prioritize meticulous blood glucose management,adherence to standard operating procedures,hand hygiene practices,environmental disinfection,and rational use of drugs during *** studies are imperative to explore the main risk factors of HAIs in patients with DM,enabling the development of preventative measures and mitigating the occurrence of HAIs in these patients.

关键词： Diabetes mellitus Healthcare-associated infections Nosocomial urinary tract infections Surgical site infections Nosocomial bloodstream infections

Adopting green absorbent for CO_(2)capture and agricultural utilization: Biogas slurry and biomass ash case

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Green Carbon 2024年第2期2卷 252-261页

作者： Feihong Liang Shihui Wei lu xue Shuiping Yan College of Life Science Yulin UniversityYulin 719000PR China College of Engineering Huazhong Agricultural UniversityWuhan 430070PR China Technology&Equipment Center for Carbon Neutrality in Agriculture Huazhong Agricultural UniversityWuhan 430070PR China Carbon Neutral College(Yulin) Northwest UniversityXi’an 710069PR China

Previously,the once-through CO_(2)chemical absorption process by biogas slurry was experimentally verified to offer the unique advantages like low energy consumption,cost-effectiveness,and feasibility of CO_(2)fixation in ***,this technology also faces some challenges and limitations,including a low CO_(2)absorption rate and *** improve the effectiveness and reliability of this innovative carbon capture,utilization,and storage(CCUS)technology,this study proposes a novel method to enhance the CO_(2)absorption performance without affecting agricultural applications of CO_(2)by mixing biogas slurry with biomass ash as the green CO_(2)*** results indicate that when the solid-liquid mass ratio of biomass ash to biogas slurry is 5:10,the CO_(2)loading of the biomass ash and biogas slurry mixture(BA-BS)reaches 936.7±59.1 mmol/***,the pH of the BA-BS remains stable at 6.9,meeting the rhizosphere pH requirements for plant *** CO_(2)absorption of the BA-BS liquid phase,referred to as improved biogas slurry(IBS),reaches its maximum at 230.4±3.5 mmol/L,which is 126.8%higher than that of the unimproved biogas *** nitrogen content in the BA-BS solid phase,calling improved biomass ash(IBA),also reaches its maximum at 4.24±0.74 mg/g,thereby expanding the agricultural utilization of biomass *** most reasonable and effective way of utilizing CO_(2)-rich mixed biogas slurry and biomass ash involves use IBA as the base fertilizer for tomato cultivation,supplemented later with IBS to promote *** optimal application allows for substantial utilization of CO_(2),introduced into the tomato cultivation environment by IBA and *** carbon fixation of a single tomato has improved by 108.2%.This study thus provides a feasible solution for high-value negative carbonization of biogas slurry and biomass ash.

关键词： Biogas slurry Biomass ash CO_(2)capture CO_(2)fixation Agricultural utilization

阈值下微脉冲激光在中心性浆液性脉络膜视网膜病变中的作用机制

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际眼科杂志 2024年第5期24卷 749-752页

作者：路雪谢兵遵义医科大学附属医院眼科贵州省遵义市563000

中心性浆液性脉络膜视网膜病变(CSC)是发生在中青年患者中常见的黄斑病变,该病具有一定自限性,但治疗不及时也可致病情迁延、反复发作,进展为慢性CSC、继发视网膜色素上皮(RPE)萎缩、脉络膜新生血管等,最终导致中心视力不可逆性损害。... 详细信息

中心性浆液性脉络膜视网膜病变(CSC)是发生在中青年患者中常见的黄斑病变,该病具有一定自限性,但治疗不及时也可致病情迁延、反复发作,进展为慢性CSC、继发视网膜色素上皮(RPE)萎缩、脉络膜新生血管等,最终导致中心视力不可逆性损害。阈值下微脉冲激光(SMLP)是一种短促重复的脉冲激光,它不同于具有损伤性治疗作用的传统激光,在达到有效治疗效果的基础上,不会对RPE细胞和光感受器造成损伤和热损伤。在光动力治疗(PDT)缺乏维替泊芬的情况下,因其有效性、安全性和可重复性,SMLP现已广泛应用于临床上CSC的治疗。本综述旨在阐述SMLP治疗CSC过程中涉及的效应细胞、细胞因子及作用机制,以期为SMLP在临床的推广和合理化应用提供更多理论依据。

关键词：中心性浆液性脉络膜视网膜病变阈值下微脉冲激光视网膜色素上皮脉络膜毛细血管内皮细胞作用机制

人工智能技术与人力资本结构升级:内在机理与经验检验

在线全文

学校读者我要写书评

暂无评论

江西财经大学学报 2024年第2期 13-26页

作者：韩颖许薛璐西安交通大学经济与金融学院陕西西安710061 上海师范大学商学院上海200233

随着人工智能技术对传统生产模式的智能化改造升级,生产任务日趋复杂化和专业化,对人力资本结构的适配性提出了新的时代要求。将人工智能发展、产业结构高级化以及人力资本结构高级化纳入一个有机的理论分析框架,可以刻画人工智能发展... 详细信息

随着人工智能技术对传统生产模式的智能化改造升级,生产任务日趋复杂化和专业化,对人力资本结构的适配性提出了新的时代要求。将人工智能发展、产业结构高级化以及人力资本结构高级化纳入一个有机的理论分析框架,可以刻画人工智能发展影响人力资本结构高级化的内在机制及其地区异质性。经验研究表明,人工智能发展不仅能够直接推动人力资本结构高级化,还能够通过促进产业结构高级化,进而对人力资本结构高级化进程产生积极作用。人工智能发展对人力资本结构高级化的促进作用存在显著的地区异质性,东部、中部和西部地区呈现梯次下降态势。黄河中游、长江中游以及大西南综合经济区人工智能发展对人力资本结构高级化的积极作用逐步凸显。政府应加快构筑人工智能人才培养的长效机制,推进人工智能技术与实体产业的融合发展,助力产业结构转型升级,进而促进人力资本结构高级化。同时,各地方政府应因地制宜,有序推进人工智能发展,缩小区域间人力资本结构差距。

关键词：人工智能人力资本结构高级化产业结构高级化地区异质性

Impact of COVID-19 pandemic on routine childhood vaccinations

在线全文

学校读者我要写书评

暂无评论

World Journal of Virology 2024年第2期13卷 1-4页

作者： Shi-Rong Lv Ming-Ke Wang xue-lu Yu Xin-Yue Li Ji-Shun Yang Department of Disease Control and Prevention Naval Medical Center of PLANaval Medical UniversityShanghai 200052China Medical Care Center Naval Medical Center of PLANaval Medical UniversityShanghai 200052China

Routine pediatric vaccination is one of the most effective public health inter-ventions for the control of a number of fatal ***,during the coronavirus disease 2019 pandemic,routine pediatric vaccination rates were severely affected by disruptions of health services and vaccine confidence *** and the United Nations have taken measures to re-establish routine pediatric vaccination,while additional efforts are needed to catch up and develop plans to ensure routine vaccination services for the future pandemics.

关键词： Vaccines Childhood immunizations COVID-19 SARS-CoV-2 Pandemic

影像组学预测非小细胞肺癌淋巴结转移中的作用

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华肿瘤防治杂志 2024年第17期31卷 1094-1100页

作者：薛璐王琳琳潍坊医学院临床医学院山东省肿瘤防治研究院(山东省肿瘤医院)胸部放疗三病区山东第一医科大学(山东省医学科学院)

目的全面回顾和综述基于影像组学在预测非小细胞肺癌(NSCLC)淋巴结转移方面的应用进展，为未来临床应用和研究提供方向。方法运用Pubmed及中国知网数据库文献检索系统，以“非小细胞肺癌、影像组学、淋巴结转移”为中文关键词，“non-... 详细信息

目的全面回顾和综述基于影像组学在预测非小细胞肺癌(NSCLC)淋巴结转移方面的应用进展，为未来临床应用和研究提供方向。方法运用Pubmed及中国知网数据库文献检索系统，以“非小细胞肺癌、影像组学、淋巴结转移”为中文关键词，“non-small cell lung cancer、Radiomics、lymph node metastasis”为英文关键词，检索2019-01-01-2023-11-01相关文献。纳入标准：影像组学预测NSCLC患者淋巴结转移的相关研究。排除标准：(1)数据陈旧的相关研究；(2)质量差的文献。共纳入文献60篇。结果影像组学作为一种新兴无创技术逐渐成为临床应用研究的热点，在预测NSCLC淋巴结转移中同样具有巨大潜力。目前基于计算机断层扫描(CT)、正电子发射断层成像/计算机断层扫描(PET/CT)、磁共振成像(MRI)和PET/MRI的影像组学模型在NSCLC淋巴结转移预测方面已取得部分成果，具有较高的灵敏度及特异度，将影像组学特征与基因、蛋白和代谢信息以及临床数据结合，可以进一步提高淋巴结转移预测模型的准确性，但需进一步规范数据采集及分析处理流程，促进影像组学技术与医学多学科有效融合，并通过大样本外部验证获得稳定的输出结果，为NSCLC患者的个体化精准诊疗提供更可靠的依据。结论影像组学在预测NSCLC淋巴结转移中显示出独特的优势，但需要更多的前瞻性多中心研究及标准化流程提高其泛化性能。

关键词：非小细胞肺癌影像组学淋巴结转移综述文献