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攻击型无人机协同作战控制方法研究

兵工学报 2008年第10期29卷 1277-1280页

作者：沈延航周洲西北工业大学航空学院陕西西安710072

探讨了攻击型无人机目标搜索、识别、攻击作战的协同控制问题。通过分析典型作战情况,在搜索理论基础上,运用概率方法,根据搜索域上的动态"回报率"状态图,建立了多机协同搜索规划模型。通过目标的协同识别,提高目标的识别概率。建立了... 详细信息

探讨了攻击型无人机目标搜索、识别、攻击作战的协同控制问题。通过分析典型作战情况,在搜索理论基础上,运用概率方法,根据搜索域上的动态"回报率"状态图,建立了多机协同搜索规划模型。通过目标的协同识别,提高目标的识别概率。建立了目标识别矩阵以考虑错误目标识别的情况。最后针对协同和非协同情况,分别就不同取值的识别概率和目标杀伤概率,进行仿真,评估其效能。结果表明,协同控制策略显著降低虚假目标攻击次数,达到90%,但对目标击毁数,协同和非协同情况没有太大差别。协同控制策略为组成战斗组的多机联合作战提供了近优控制方法,对实际作战中充分利用无人机资源,提高无人机机群的作战效能,具有实际意义。

关键词：系统工程方法论攻击型无人机协同控制搜索识别仿真

Major royal-jelly proteins intake modulates immune functions and gut microbiota in mice

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Food Science and Human Wellness 2024年第1期13卷 444-453页

作者： hang Wu Shican Zhou Wenjuan Ning Xiao Wu Xiaoxiao Xu Zejin Liu Wenhua Liu Kun Liu Lirong shen Junpeng Wang Infection and Immunity Institute and Translational Medical Center of Huaihe Hospital Henan UniversityKaifeng 475000China College of Biology Science and Engineering Hebei University of Economics and BusinessShijiazhuang 050061China College of Biosystems Engineering and Food Science Zhejiang Key Laboratory for Agro-Food ProcessingZhejiang UniversityHangzhou 310058China

In this study,we investigated the effects of major royal jelly proteins(MRJPs)on the estrogen,gut microbiota,and immunological responses in *** given 250 or 500 mg/kg,not 125 mg/kg of MRJPs,enhanced the proliferation of splenocytes in response to *** splenocytes and mesenteric lymphocytes activated by T-cell mitogens(Con A and anti-CD3/CD28 antibodies)released high levels of IL-2 but low levels of IFN-γand *** release of IL-4 was unaffected by ***,splenocytes and mesenteric lymphocytes activated by LPS were prevented by MRJPs at the same dose as that required for producing IL-1βand IL-6,two pro-inflammatory *** production of IL-1β,IL-6,and IFN-γwas negatively associated with estrogen levels,which were higher in the MRJP-treated animals than in the control *** of the gut microbiota revealed that feeding mice 250 mg/kg of MRJPs maintained the stability of the natural intestinal microflora of ***,the LEf Se analysis identified biomarkers in the MRJP-treated mice,including Prevotella,Bacillales,Enterobacteriales,Gammaproteobacteria,Candidatus_Arthromitus,and *** results showed that MRJPs are important components of royal jelly that modulate host immunity and hormone levels and help maintain gut microbiota stability.

关键词： Major royal-jelly proteins Immunity Estrogen Gut microbiota Cytokines

Shared mooring systems for offshore floating wind farms: A review

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Energy Reviews 2024年第1期3卷 76-89页

作者： hang Xu shengjie Rui Kanmin shen Liangliang Jiang Haojie Zhang Long Teng Zhejiang Key Laboratory of Offshore Geotechnics and Material College of Civil Engineering and ArchitectureZhejiang UniversityHangzhou310058China Norwegian Geotechnical Institute Sandakerveien 140Oslo0484Norway PowerChina Huadong Engineering Corporation Limited Hangzhou311122China Department of Chemical and Petroleum Engineering The University of CalgaryCalgaryAlbertaCanada

Offshore wind energy,as a form of renewable power,has seen rapid development in recent *** fixedbottom wind turbines are typically used in water depths less than 50 m,the utilization of floating offshore wind turbines(FOWTs)becomes essential for deeper *** and effective mooring systems play a crucial role in making FOWTs commercially *** concept of a shared mooring system offers an innovative solution for deploying floating wind farms in clusters or arrays,which can reduce overall construction costs for large-scale floating wind *** is imperative to optimize the shared mooring arrangement for maximum cost-effectiveness and wind farm ***,implementing a shared mooring system introduces complexity to the dynamics of FOWTs,requiring the development of advanced simulation tools to meet modelling *** the shared mooring arrangement,mooring lines and anchors face more significant challenges,such as chain-seabed interactions,soil cyclic weakening,and anchor out-of-plane loading,which underscore the need for innovative,reliable,and efficient shared anchor *** article offers an overview of the current research status on shared mooring systems for floating wind farms,which might serve as a valuable reference for the construction of large-scale floating wind farms worldwide.

关键词： Floating offshore wind turbines Wind farm Shared mooring Shared anchor Renewable energy

Performance Study of a Cross-Layer Based Multipath Routing Protocol for IEEE 802.11e Mobile Ad Hoc Networks

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International Journal of Communications, Network and System Sciences 2008年第4期1卷 329-338页

作者： hang shen Guangwei BAI Junyuan WANG Yong JIN Jinjing TAO 不详

Communication over wireless links identifies significant challenges for routing protocols operating. This paper proposes a Cross-layer design based Multipath Routing Protocol (CMRP) for mobile ad hoc networks, by means of the node energy signal from the physical layer. The purpose is to optimize routing decision and path quality. The nodes’ mobility behavior is predicted using a notion of “Signal Fading Degree, SFD”. Especially, in combination of the IEEE 802.11e standard at the MAC layer, we determine that the IEEE 802.11e makes a significant contribution to performance improvement of CMRP. Performance evaluation of AODV in legacy 802.11 and CMRP in IEEE 802.11e shows that, as a function of speed of node mobility, a tremendous reduction achieved, in metrics such as the average end-to-end delay, route overhead, route discovery frequency, normalized routing load - almost more than 80%, 40%, 40%, and 40%. In the case of varying number of sessions, the reduction for route discovery frequency and normalized routing load are up to 70% and 80%.

关键词： Wireless Mobile Ad Hoc Networks Multipath Routing Cross-Layer Design IEEE 802.11e

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带材压毛刺机构的设计开发

制造业自动化 2009年第9期31卷 202-202,30页

作者：沈航北京机械工业自动化研究所北京100120

新型压毛刺机构可调整跟踪压碾带材板宽边缘,结构简洁,重量轻,避免造成板面周期性重复划伤。

关键词：压毛刺机压平机

Knee osteoarthritis:A review of animal models and intervention of traditional Chinese medicine

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Animal Models and Experimental Medicine 2024年第2期7卷 114-126页

作者： Xuyu Song Ying Liu Siyi Chen Lei Zhang Huijie Zhang Xianhui shen hang Du Rong Sun Orthopaedic trauma surgery The Second Hospital of Shandong UniversityJinanShandongChina Academy of Traditional Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjinChina Department of Traditional Chinese Medicine The Second Hospital of Shandong UniversityJinanShandongChina College of pharmacy Shandong University of Traditional Chinese MedicineJinanShandongChina The Second Clinical College of Shandong University Shandong UniversityJinanShandongChina Advanced Medical Research Institute Shandong UniversityJinanShandongChina The Second Hospital of Shandong University JinanShandongChina

Background:Knee osteoarthritis(KOA)characterized by degeneration of knee cartilage and subsequent bone hyperplasia is a prevalent joint condition primarily affecting aging *** pathophysiology of KOA remains poorly understood,as it involves complex mechanisms that result in the same ***,researchers are interested in studying KOA and require appropriate animal models for basic *** herbal compounds,which consist of multiple herbs with diverse pharmacological properties,possess characteristics such as multicomponent,multipathway,and multitarget *** potential benefits in the treatment of KOA continue to attract ***:This study aims to provide a comprehensive overview of the advantages,limitations,and specific considerations in selecting different species and methods for KOA animal *** will help researchers make informed decisions when choosing an animal ***:Online academic databases(e.g.,PubMed,Google Scholar,Web of Science,and CNKI)were searched using the search terms“knee osteoarthritis,”“animal models,”“traditional Chinese medicine,”and their combinations,primarily including KOA studies published from 2010 to ***:Based on literature retrieval,this review provides a comprehensive overview of the methods of establishing KOA animal models;introduces the current status of advantages and disadvantages of various animal models,including mice,rats,rabbits,dogs,and sheep/goats;and presents the current status of methods used to establish KOA animal ***:This study provides a review of the animal models used in recent KOA research,discusses the common modeling methods,and emphasizes the role of traditional Chinese medicine compounds in the treatment of KOA.

关键词： animal models knee osteoarthritis system review traditional Chinese medicine

CircR-ZC3HC1 mediates MiR-384-5p/SIRT1 axis to promote neuronal autophagy and relieves ischemic stroke

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BIOCELL 2024年第3期48卷 491-499页

作者： MIN shen XIAOMAN XU GUANGLING SUN LIANGZHU WANG TAO YING hang SU WEI WANG QINGHUA CAO ZHEZHE SUN Department of Neurology The First Affiliated Hospital of Ningbo UniversityNingbo315010China School of Medicine Ningbo UniversityNingbo315211China

Objective:Circular RNAs(circRNAs)have been shown to involve in pathological processes of ischemic stroke(IS),including *** study was designed to explore the effect of circR-ZC3HC1 on neuronal autophagy in IS and the related ***:Expression of circR-ZC3HC1 in blood samples of IS patients and healthy controls was *** neurons were treated with oxygen and glucose deprivation(OGD)to establish IS in vitro *** expression of LC3 and p62 and the number of autophagosomes were examined to evaluate the autophagy level of OGD induced neurons using western blotting and transmission electron *** apoptosis rate and the expression of cleaved caspase-3,Bax,and Bcl-2 were assessed byﬂow cytometry and western *** binding relationships among circR-ZC3HC1,miR-384-5p,and SIRT1 were predicted and veriﬁ***:Low expression of circR-ZC3HC1 was found in blood samples of IS patients and OGD-treated *** circR-ZC3HC1 or inhibited miR-384-5p expression promoted autophagy and inhibited apoptosis of OGD-treated neurons,which could be reversed by further 3-MA ***,circR-ZC3HC1 targeted miR-384-5p to mediate SIRT1 ***-384-5p overexpression or SIRT1 knockdown in the presence of circR-ZC3HC1 overexpression in OGD-treated neurons lead to reduced autophagy and enhanced ***:Collectively,circR-ZC3HC1 promoted neuronal autophagy to attenuate IS via miR-384-5p/SIRT1 axis.

关键词： Ischemic stroke circR-ZC3HC1 miR-384-5p SIRT1 Autophagy

数字孪生长距离引水工程检修排水及充水历时的确定

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中国农村水利水电 2024年第3期 160-166页

作者：叶圣炯沈启航于永海谈震杨兴旺杭州市水务集团有限公司浙江杭州310009 河海大学江苏南京210098 南瑞集团(国网电力科学研究院)有限公司江苏南京211000

长距离有压重力流引水工程单管输水,其检修排水及充水所需要的时间是检修期间工程停供水后的应急供水调度计划决策的依据。长距离引水工程检修排水及充水历时受到上游水库水位、检修闸门或阀门的过流特性、管道糙率、满流波速等诸多因... 详细信息

长距离有压重力流引水工程单管输水,其检修排水及充水所需要的时间是检修期间工程停供水后的应急供水调度计划决策的依据。长距离引水工程检修排水及充水历时受到上游水库水位、检修闸门或阀门的过流特性、管道糙率、满流波速等诸多因素影响。为了及时准确地确定检修排水及充水历时,可以基于数字孪生长距离引水工程进行研究。以某长距离引水工程为例,根据监控系统提供的库水位、测压点压力等实时采集值,进行虚实数据交互,确定数字模型参数,使得数字模型逼近物理实体,建立物理实体的数字孪生体。采用一维水动力学模型对检修排水过程和检修完成后的充水过程进行数值计算,排水过程圣维南控制方程以水位和流量为变量,而充水过程则以水深和流量为变量。软件界面采用Java编程,后台数值模拟部分采用Python编程语言。

关键词：水动力学模型明满流检修排水及充水数字孪生

TiO_(2) nanofiber-supported copper nanoparticle catalysts for highly efficient methane conversion to C1 oxygenates under mild conditions

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Nano Research 2024年第5期17卷 3844-3852页

作者： Wencui Li Yu Ren Zean Xie Yipeng Wang hang Zhang Dianxiang Peng Hengfang shen Hongfei Shi Jiaxin Cai Peng Wang Tongxin Zhang Zhen Zhao State Key Laboratory of Heavy Oil Processing China University of Petroleum(Beijing)Beijing 102249China Institute of Catalysis for Energy and Environment College of Chemistry&Chemical EngineeringShenyang Normal UniversityShenyang 110034China Institute of Petrochemical Technology Jilin Institute of Chemical TechnologyJilin 132022China

The selective oxidation of methane under mild conditions remains the“Holy Grail of Catalysis”.The key to activating methane and inhibiting over-oxidation of target oxygenates lies in designing active *** nanoparticles were loaded onto TiO_(2) nanofibers using the photo-deposition *** resulting catalysts were found to effectively convert methane into C1 oxygenated products under mild *** with previously reported catalysts,it delivers a superior performance of up to 2510.7 mmol·g_(Cu)^(-1)·h^(-1) productivity with a selectivity of around 100%at 80℃for 5 *** characterizations and density functional theory(DFT)calculations indicate that TiO_(2) in the mixed phase of anatase and rutile significantly increases the Cu^(+)/CuO ratio of the supported Cu species,and this ratio is linearly related to the formation rate of oxygen-containing *** CuI site promotes the generation of active O species from H_(2)O_(2) dissociation on Cu_(2)O(111).These active O species reduce the energy barrier for breaking the C-H bond of CH_(4),thus boosting the catalytic *** methane conversion mechanism was proposed as a methyl radical pathway to form CH_(3)OH and CH_(3)OOH,and then the generated CH_(3)OH is further oxidized to HOCH_(2)OOH.

关键词： TiO_(2)nanofiber copper nanoparticles photo-deposition method methane oxidation C1 oxygenates