检索结果-南通市图书馆

Efficient large-area flexible organic photovoltaic modules on transparent thin silver electrodes

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistry 2025年

作者： cong Xie Zedong Xiong Xinlu Liu Wen Wang Yang Liu Xueshi Jiang Xin Lu Lulu Sun Yinhua Zhou Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Kunming Institute of Physics

Large-area flexible organic photovoltaic（OPV） modules are challenging to achieve high power conversion efficiency（PCE）.Electrical shunts or shortages generally occur in large-area OPV modules due to the ultrathin（100–200 nm） and soft active layers. Improving the surface smoothness of bottom transparent electrode will be able to suppress the shunts and shortages. In this work, we report a method to fabricate smooth and flexible transparent electrodes based on thin silver film, and further to fabricate efficient large-area flexible OPV modules. The fabricated thin silver transparent electrodes simultaneously have high conductivity, high optical transmittance, good mechanical flexibility and low surface roughness. Humidity exposure（h.e.）treatment on MoO3effectively facilitates the continuous growth of the thin transparent silver electrode. 6 nm silver film on MoO3（h.e.） on plastic substrate shows a transmittance up to 89%, a sheet resistance of 15 Ω/sq, and a low surface roughness with a rootmean-square value of 0.276 nm. Furthermore, 52-cm2flexible organic solar modules（15 subcells） showed a certified PCE of12.66%. Furthermore, a 1350 cm2flexible component assembled by 25 pieces of 52–55 cm2modules showed certified PCE of12.10% with an open-circuit voltage of 62.85 V.

关键词：

miRNA-21-5p is an important contributor to the promotion of injured peripheral nerve regeneration using hypoxia-pretreated bone marrow-derived neural crest cells

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第1期20卷 277-290页

作者： Meng cong Jing-Jing Hu Yan Yu Xiao-Li Li Xiao-Ting Sun Li-Ting Wang Xia Wu Ling-Jie Zhu Xiao-Jia Yang Qian-Ru He Fei Ding Hai-Yan Shi School of Medicine Nantong UniversityNantongJiangsu ProvinceChina Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education and Coinnovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Physiology Jiangsu Health Vocational CollegeNanjingJiangsu ProvinceChina Department of Pathology Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair Affiliated Hospital of Nantong UniversityNantongJiangsu ProvinceChina

Our previous study found that rat bone marrow–derived neural crest cells(acting as Schwann cell progenitors)have the potential to promote long-distance nerve ***-based therapy can enhance peripheral nerve repair and regeneration through paracrine bioactive factors and intercellular ***,the complex contributions of various types of soluble cytokines and extracellular vesicle cargos to the secretome remain *** investigate the role of the secretome and extracellular vesicles in repairing damaged peripheral nerves,we collected conditioned culture medium from hypoxia-pretreated neural crest cells,and found that it significantly promoted the repair of sensory neurons damaged by oxygen-glucose *** mRNA expression of trophic factors was highly expressed in hypoxia-pretreated neural crest *** performed RNA sequencing and bioinformatics analysis and found that miR-21-5p was enriched in hypoxia-pretreated extracellular vesicles of neural crest ***,to further clarify the role of hypoxia-pretreated neural crest cell extracellular vesicles rich in miR-21-5p in axonal growth and regeneration of sensory neurons,we used a microfluidic axonal dissociation model of sensory neurons in vitro,and found that hypoxia-pretreated neural crest cell extracellular vesicles promoted axonal growth and regeneration of sensory neurons,which was greatly dependent on loaded ***,we constructed a miR-21-5p-loaded neural conduit to repair the sciatic nerve defect in rats and found that the motor and sensory functions of injured rat hind limb,as well as muscle tissue morphology of the hind limbs,were obviously *** findings suggest that hypoxia-pretreated neural crest extracellular vesicles are natural nanoparticles rich in ***-21-5p is one of the main contributors to promoting nerve regeneration by the neural crest cell *** helps to explain the mechanism of action of the secretome and e

关键词： axotomy cell-free therapy conditioned medium extracellular vesicles hypoxic preconditioning microRNA oxygen-glucose deprivation peripheral nerve injury Schwann cell precursors

在线全文

学校读者我要写书评

暂无评论

多无人机协同规划研究综述

计算机工程与应用 2025年第1期61卷 42-58页

作者：宁聪范菁孙书魁云南民族大学电气信息工程学院昆明650500 云南民族大学云南省高校信息与通信安全灾备重点实验室昆明650500 云南民族大学云南省无人自主系统重点实验室昆明650500

无人机在各行各业中发挥重要作用,多无人机之间的合作已成为研究热点。针对任务分配与路径规划两个核心问题,整理和分析了多无人机协同规划两个关键问题之间的复杂性,以及子问题间的信息耦合因素,并重点探讨了解耦策略;从数学模型方面... 详细信息

无人机在各行各业中发挥重要作用,多无人机之间的合作已成为研究热点。针对任务分配与路径规划两个核心问题,整理和分析了多无人机协同规划两个关键问题之间的复杂性,以及子问题间的信息耦合因素,并重点探讨了解耦策略;从数学模型方面对多无人机协同规划问题的通用模型进行描述,整理归纳出常见环境建模方法和多目标优化求解的约束条件;综述了基于集中式控制和分布式控制的任务规划方法,以及启发式算法在多无人机协同规划中的应用和研究进展,并重点介绍了多无人机协同规划问题面临实时性要求下的协同规划方法;结合典型研究,讨论了多无人机协同规划问题的未来研究方法与挑战,展望多无人机协同规划的发展。

关键词：无人机解耦策略智能算法任务分配路径规划

Evaluation of the therapeutic significance of Glehniae Radix polysaccharides on the ulcerative colitis through DSS-induced rat model

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2025年

作者： Jie Liu Xufang Geng Yuxin Yang Jiao Xu Haoran Feng Tianshuo Zhang Guangzhao Zhou Man Wang Changshun Wang Dongsheng Jia Yuting Chen Bin cong Ding Zhao The Postdoctoral Mobile Station of Basic Medicine， Hebei Medical University The Department of Pharmacognosy， School of Pharmacy， Hebei Medical University Hebei Key Laboratory of Forensic Medicine， College of Forensic Medicine， Hebei Medical University

Glehniae Radix has a wide range of pharmaceutical applications， and research on its main components has mainly focused on coumarins， alkaloids， lignans， and flavonoids， while neglecting the research on polysaccharides. Literature reports and our previous studies have shown that polysaccharides have certain therapeutic significance in immune regulation， antioxidant， anti-inflammatory and other aspects. Herein， the rat model of ulcerative colitis (UC) was established to evaluate the anti-inflammatory efficacy of the prepared Glehniae Radix polysaccharide (GLP) from the perspectives of inflammatory factors， intestinal tissue morphology， and microflora changes. The polysaccharides are mainly composed of galacturonic acid， rhamnose， glucose， galactose， and arabinose in molar ratios of 1.4:9.2:33.3:2.5:2.9， and GLP could downregulate the expression pro-inflammatory factors (interleukin-6， tumor necrosis factor-α， and interferon-γ) and significantly upregulate the expression of anti-inflammatory factor (interleukin-10). In addition， Glehniae Radix aqueous extract (GLA)， GLP with low dosage (GLPL) and GLP with high dosage (GLPH) could increase the number of goblet cells， enhance the integrity of crypt structure， and reverse the status of inflammatory infiltrating cells. Moreover， GLA and GLPH could upregulate Lactobacillus and Lachnoclostridium in UC rats， and appropriately downregulate Lachnospiraceae＿NK4A136＿group， thereby optimizing the proportion of bacterial flora and improving the intestinal microbial environment. Our findings not only be valuable as theoretical materials for the further clinical applications of GLP， but the identified biomarkers and metabolic pathways also provide new clues for the diagnosis of UC.

关键词：

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

插秧机自主驾驶控制系统设计与试验

农机化研究 2025年第4期47卷 102-109页

作者：胡聪魏新华江苏大学农业工程学院江苏镇江212013 现代农业装备与技术教育部重点实验室江苏镇江212013

为了满足插秧机自动驾驶作业需求,提高插秧机路径跟踪精度与作业效果,设计了插秧机自主驾驶控制系统。以电控化改造的久富2ZG-6D(G6)型插秧机为研究平台,基于北斗/GNSS定位建立了插秧机路径跟踪模型,提出一种改进的变论域模糊PID控制算... 详细信息

为了满足插秧机自动驾驶作业需求,提高插秧机路径跟踪精度与作业效果,设计了插秧机自主驾驶控制系统。以电控化改造的久富2ZG-6D(G6)型插秧机为研究平台,基于北斗/GNSS定位建立了插秧机路径跟踪模型,提出一种改进的变论域模糊PID控制算法,并结合仿真和田间实车试验,对控制系统性能进行验证。仿真试验中,插秧机路径跟踪过程中横向偏差绝对值始终控制在0.03 m之内;田间试验时,插秧机按照规划的目标路径进行路径跟踪,横向偏差绝对值多控制在0.05 m之内,正、负横向偏差均值为0.031、0.034 m。试验结果表明:插秧机在作业行直线跟踪精度较高,设计的控制系统满足插秧作业需求。

关键词：插秧机自动驾驶路径跟踪

维普期刊数据库博看期刊

实体法视角下低龄未成年人“核准追诉”的理解与展开

在线全文

学校读者我要写书评

暂无评论

河南财经政法大学学报 2025年第1期40卷 129-143页

作者：曾聪中国政法大学刑事司法学院北京100088

《刑法》第十七条第三款规定的“核准追诉”并非纯粹的程序法要件,而是同时具备实体法意涵。就逻辑前提而言,立法者并未以“个别下调刑事责任年龄”的法律拟制路径改变应负刑事责任的“一般人形象”,只是在极端个案中赋予司法机关具体... 详细信息

《刑法》第十七条第三款规定的“核准追诉”并非纯粹的程序法要件,而是同时具备实体法意涵。就逻辑前提而言,立法者并未以“个别下调刑事责任年龄”的法律拟制路径改变应负刑事责任的“一般人形象”,只是在极端个案中赋予司法机关具体证明个别刑事责任年龄以下者具备刑事责任能力的权力。就权力性质而言,核准追诉权不是以“是否有必要惩罚低龄未成年人”的需罚性考量为中心的自由裁量权,而是以“惩罚低龄未成年人是否正当”的应罚性判断为中心的例外反证权。实体法要件不能独立解决应罚性问题,多数观点完全切割程序法要件与实体法要件的做法不能成立,司法机关应当根据低龄未成年人是否在家庭、学校等具体场景进行充足的法律社会化为根据,补足刑事责任能力的具体证明,这正是“核准追诉”在实体法有责性层面的具体意涵。

关键词：低龄未成年人核准追诉实体法意涵例外反证说法律社会化

基于长/短视距多模型自适应交互的高速无人车避障规划研究

在线全文

学校读者我要写书评

暂无评论

北京理工大学学报 2025年第1期45卷 42-51页

作者：刘聪陈雪梅梁玮北京理工大学前沿技术研究院山东济南250307 北京理工大学机械车辆学院北京100081

在低附着、高速紧急避障工况下无人驾驶车辆需要充分考虑到路径规划效率和车辆动力学特性,以保障规划的路径满足车辆高速行驶跟踪精度要求.文中针对无人车紧急避障中路径规划与跟踪控制之间存在的耦合干预问题,提出一种基于长/短视距多... 详细信息

在低附着、高速紧急避障工况下无人驾驶车辆需要充分考虑到路径规划效率和车辆动力学特性,以保障规划的路径满足车辆高速行驶跟踪精度要求.文中针对无人车紧急避障中路径规划与跟踪控制之间存在的耦合干预问题,提出一种基于长/短视距多层融合的高速紧急避障局部路径规划算法.根据不同风险值障碍物分布的密集程度细化障碍物的风险值,分别设计了可跨/绕障碍物群的风险势场和环境风险状态采样空间,从而构建一种基于偏向性采样的长视距局部路径规划算法.提出了一种基于交互式多模型预测控制的短视距局部路径重规划,建立模型概率实时在线更新规则,实现了极限工况下车辆快速行驶的局部路径规划,同时满足计算实时性、避障安全性和跟踪稳定性的路径规划设计需求.仿真试验验证了所提多层融合局部路径规划方法的有效性和优越性.

关键词：紧急避障无人驾驶车辆多层融合规划偏向性采样

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

职业教育发展对实体经济的影响研究

黑龙江高教研究 2025年第1期43卷 147-154页

作者：刘聪阮晓文曹辉南京工业职业技术大学江苏南京210023 江苏大学江苏镇江212013

基于2005一2021年的省际面板数据,采用双向固定效应模型,实证分析了职业教育发展对实体经济的影响效应和作用机制。研究发现,职业教育发展会显著促进实体经济增长,且该结论在替换变量和工具变量估计的稳健性检验下依然成立;异质性分析表... 详细信息

基于2005一2021年的省际面板数据,采用双向固定效应模型,实证分析了职业教育发展对实体经济的影响效应和作用机制。研究发现,职业教育发展会显著促进实体经济增长,且该结论在替换变量和工具变量估计的稳健性检验下依然成立;异质性分析表明,职业教育发展对经济发展程度和教育发展水平欠发达地区的实体经济促进效应更大;机制验证表明,职业教育发展会通过培育匠心劳动者、提高新质生产力和繁荣创业活跃度促进实体经济增长。未来,为更好建设以实体经济为支撑的现代化产业体系,应加快推进中国式职业教育现代化建设,并注重发展策略的精准性。

关键词：职业教育实体经济新质生产力

Formal Modeling and Discovery of Multi-instance Business Processes: A Cloud Resource Management Case Study

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

IEEE/CAA Journal of Automatica Sinica 2022年第12期9卷 2151-2160页

作者： cong Liu IEEE School of Computer Science and Technology Shandong University of TechnologyZibo 255000 College of Computer Science and Engineering Shandong University of Science and TechnologyQingdao 266590China

Process discovery, as one of the most challenging process analysis techniques, aims to uncover business process models from event logs. Many process discovery approaches were invented in the past twenty years;however, most of them have difficulties in handling multi-instance sub-processes. To address this challenge, we first introduce a multi-instance business process model(MBPM) to support the modeling of processes with multiple sub-process instantiations. Formal semantics of MBPMs are precisely defined by using multi-instance Petri nets(MPNs)that are an extension of Petri nets with distinguishable ***, a novel process discovery technique is developed to support the discovery of MBPMs from event logs with sub-process multi-instantiation information. In addition, we propose to measure the quality of the discovered MBPMs against the input event logs by transforming an MBPM to a classical Petri net such that existing quality metrics, e.g., fitness and precision, can be *** proposed discovery approach is properly implemented as plugins in the Pro M toolkit. Based on a cloud resource management case study, we compare our approach with the state-of-theart process discovery techniques. The results demonstrate that our approach outperforms existing approaches to discover process models with multi-instance sub-processes.

关键词： Cloud resource management process multi-instance Petri nets(MPNs) multi-instance sub-processes process discovery quality evaluation