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HQNN-SFOP: Hybrid Quantum Neural Networks with Signal Feature Overlay Projection for Drone Detection Using Radar Return Signals-A Simulation

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Computers, Materials and Continua 2024年第1期81卷 1363-1390页

作者： Wang, Wenxia Xu, Jinchen Ding, Xiaodong song, zhihui Huang, Yizhen Zhou, Xin Shan, Zheng School of Cyberspace Security Information Engineering University Zhengzhou 450001 China

With the wide application of drone technology, there is an increasing demand for the detection of radar return signals from drones. Existing detection methods mainly rely on time-frequency domain feature extraction and classical machine learning algorithms for image recognition. This method suffers from the problem of large dimensionality of image features, which leads to large input data size and noise affecting learning. Therefore, this paper proposes to extract signal time-domain statistical features for radar return signals from drones and reduce the feature dimension from 512 × 4 to 16 dimensions. However, the downscaled feature data makes the accuracy of traditional machine learning algorithms decrease, so we propose a new hybrid quantum neural network with signal feature overlay projection (HQNN-SFOP), which reduces the dimensionality of the signal by extracting the statistical features in the time domain of the signal, introduces the signal feature overlay projection to enhance the expression ability of quantum computation on the signal features, and introduces the quantum circuits to improve the neural network's ability to obtain the inline relationship of features, thus improving the accuracy and migration generalization ability of drone detection. In order to validate the effectiveness of the proposed method, we experimented with the method using the MM model that combines the real parameters of five commercial drones and random drones parameters to generate data to simulate a realistic environment. The results show that the method based on statistical features in the time domain of the signal is able to extract features at smaller scales and obtain higher accuracy on a dataset with an SNR of 10 dB. On the time-domain feature data set, HQNNSFOP obtains the highest accuracy compared to other conventional methods. In addition, HQNN-SFOP has good migration generalization ability on five commercial drones and random drones data at different SNR conditions. Ou

关键词： Time domain analysis

考虑可再生能源不确定性的风光火储联合调度优化

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洁净煤技术 2024年第8期30卷 117-127页

作者：宋祉慧田军见倪战士林其钊贵州开放大学(贵州职业技术学院)信息工程学院贵州贵阳550000 中国科学技术大学工程科学学院安徽合肥230000

风光火储联合调度是助力火电行业实现“双碳”目标的重要路径之一。为应对可再生能源出力不确定性对电力系统的影响,以实现总运行成本最小为优化目标,构建风、光出力不确定参数合集,建立两阶段鲁棒优化模型对风光火储联合系统进行调度... 详细信息

风光火储联合调度是助力火电行业实现“双碳”目标的重要路径之一。为应对可再生能源出力不确定性对电力系统的影响,以实现总运行成本最小为优化目标,构建风、光出力不确定参数合集,建立两阶段鲁棒优化模型对风光火储联合系统进行调度优化。将不确定性优化问题解耦成包含确定性参数的第1阶段以及涉及不确定性变量的第2阶段。其中,第1阶段基于可再生能源出力预测值,求解火电机组启停状态和储能设备充放电状态,第2阶段作为灵活调控阶段,求解扰动发生后最恶劣场景下各设备的输出功率,并采用列约束生成算法结合算例进行计算。结果表明,该模型通过合理弃能和储能调峰可有效平抑火电机组净负荷波动,缓解机组调峰压力。相比确定性优化模型,该不确定性优化模型求解所得运行成本增加,表明考虑可再生能源不确定性的鲁棒优化具有更高的保守度,同时,可再生能源出力偏离度越大,其运行成本增幅相比确定性优化越小,有效降低了可再生能源出力偏差对系统经济性的干扰。

关键词：风光火储燃煤发电碳排放两阶段鲁棒优化调度运行

Degree of ontogenetic diet shift and trophic niche partitioning of Euphausia superba and Thysanoessa macrura are influenced by food availability

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Journal of Oceanology and Limnology 2023年第3期41卷 1039-1049页

作者： Zhipeng PANG Xupeng CHI zhihui song Haibo LI Yunyan CHEN Guang YANG College of Environmental and Safety Engineering Qingdao University of Science and TechnologyQingdao 266061China Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China

Euphausia superba and Thysanoessa macrura are dominant krill species in the Southern Ocean and their habitats are often overlapped *** of the feeding strategies of these two krill species will help us better understand the coexistence mechanisms and estimate the roles that krill played in the food web of the Southern *** trophodynamics of *** and *** at different ontogenetic stages(furcilia,juvenile,adult)were studied using fatty acid and stable isotope biomarkers in the samples collected in Amundsen Sea during austral summer of 2017/2018 and 2018/*** like Fragilariopsis *** the most abundant phytoplankton species in the summer of 2017/2018,while the abundance of phytoplankton in the summer of 2018/2019 was dominated by Phaeocystis *** gradual increase of the carnivorous index 18꞉1n-9/18꞉1n-7 with ontogeny of both species in 2018/2019 indicated more carnivorous feeding of adults compared with juveniles and ***,greaterδ15N values of *** than that of *** were more significant in the juvenile and adult stages during the summer of 2018/*** results indicate that the trophic niche differentiation between the two krill species appeared in postlarval stage and can be influenced by food *** with ***,*** was more prone to feed omnivorously or carnivorously responding to food availability.

关键词： Antarctic krill feeding strategies fatty acids stable isotopes trophodynamics Southern Ocean

基于美国FDA不良事件报告系统数据库的英克司兰不良事件风险信号挖掘

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药物不良反应杂志 2024年第4期26卷 223-228页

作者：王兴龙胡卿源白洁宋智慧首都医科大学附属北京同仁医院药学部北京100730

目的了解英克司兰不良事件(AE)风险,为临床安全应用该药提供参考。方法收集美国FDA不良事件报告系统(FAERS)数据库2004年第4季度至2023年第2季度以英克司兰为首要怀疑药物的AE报告,采用《国际医学用语词典》26.0版的首选术语(PT)与系统... 详细信息

目的了解英克司兰不良事件(AE)风险,为临床安全应用该药提供参考。方法收集美国FDA不良事件报告系统(FAERS)数据库2004年第4季度至2023年第2季度以英克司兰为首要怀疑药物的AE报告,采用《国际医学用语词典》26.0版的首选术语(PT)与系统器官分类(SOC)对AE进行标准化和分类。采用报告比值比(ROR)法与英国药品和保健产品管理局(MHRA)综合标准法进行AE风险信号挖掘,将同时满足报告数≥3且ROR的95%置信区间(CI)下限>1(ROR法)和报告数≥3、PRR≥2且χ^(2)≥4(MHRA综合标准法)的PT视为AE风险信号,并对其进行描述性统计分析。结果共收集到以英克司兰为首要怀疑药物的AE报告1888份,涉及1888例患者和835个PT。AE的上报国家以美国为主(88.7%,1675/1888),报告者以消费者为主(62.1%,1171/1886);严重AE报告共484例(25.6%)。剔除非药品及适应证相关PT,同时满足ROR法与MHRA综合标准法风险信号判定标准的PT共85个,累及15个SOC。报告数排名前5位的PT为关节痛(248例)、注射部位痛(237例)、肢体疼痛(170例)、肌痛(158例)和腹泻(132例);信号强度排名前5位的PT包括膀胱不适(ROR=28.87,PRR=28.85)、注射部位不适(ROR=24.48,PRR=24.40)、鼻窦疼痛(ROR=23.20,PRR=23.19)、注射部位囊泡(ROR=17.63,PRR=17.61)、注射部位皮疹(ROR=12.51,PRR=12.45)。分别以报告数和信号强度排名前20位的PT中,有8个和13个PT未在国内外药品说明书记载,其中肌痛、听觉减退的报告数较多且信号强度较强。结论美国FAERS数据库英克司兰AE主要为注射部位反应,其次还有关节痛、肌痛、肌痉挛等肌肉骨骼相关AE,以及尿路感染、支气管炎等感染相关AE,需要临床关注。

关键词：降血脂药安全 RNA,小分子干扰英克司兰不良事件

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基于三坐标测量的数据处理研究

机械工程师 2024年第9期 133-137页

作者：宋智慧唐恩宽刘钊赵彦淇湖北瑞立德科技有限公司武汉430062 中国建筑第五工程局有限公司长沙410004 长江大学机械工程学院湖北荆州434023

数字化测量技术是制造业的重要技术之一,其中三坐标测量机的应用弥补了检测方面的不足,与传统测量方法相比,在零部件三维建模、加工工艺、表面检测等方面的应用中显著提高了检测精度和检验工作效率。文中针对三坐标测量机测量方法、误... 详细信息

数字化测量技术是制造业的重要技术之一,其中三坐标测量机的应用弥补了检测方面的不足,与传统测量方法相比,在零部件三维建模、加工工艺、表面检测等方面的应用中显著提高了检测精度和检验工作效率。文中针对三坐标测量机测量方法、误差分析补偿和应用等进行了介绍,然后对其测量数据处理方法进行了综述,并提出未来可能的研究方向。

关键词：三坐标测量机误差分析数据处理智能化制造

植入型凶险型前置胎盘计划性剖宫产术中子宫动脉结扎阻塞及宫腔填充术的有效性和安全性

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中国妇幼健康研究 2024年第7期35卷 67-72页

作者：张洪莉习开超张素萍宋志慧唐山市妇幼保健院河北唐山063000

目的探究植入型凶险型前置胎盘计划性剖宫产术中采用子宫动脉结扎阻塞及宫腔填充术的有效性和安全性。方法选取2019年12月至2021年12月唐山市妇幼保健院收治的132例植入型凶险型前置胎盘计划性剖宫产术治疗患者为研究对象,按不同的血管... 详细信息

目的探究植入型凶险型前置胎盘计划性剖宫产术中采用子宫动脉结扎阻塞及宫腔填充术的有效性和安全性。方法选取2019年12月至2021年12月唐山市妇幼保健院收治的132例植入型凶险型前置胎盘计划性剖宫产术治疗患者为研究对象,按不同的血管阻断方式分为子宫动脉栓塞术联合宫腔填充治疗组(对照组)和子宫动脉结扎联合宫腔填充治疗组(观察组),观察比较两组患者的手术时间、术中出血量、术中输血量、膀胱损伤率,并观察记录两组母婴结局情况,包括新生儿1min Apgar评分、子宫切除率、凝血功能异常发生率。记录患者术后不良反应的发生情况,包括发热、慢性盆腔疼痛、伤口愈合不良、术后血栓形成、月经量降低等。结果观察组患者的手术时间、膀胱损伤率均较对照组更低(t=4.428和5.621,P0.05),两组新生儿出生1min Apgar评分未见显著差异(t=0.257,P>0.05),但观察组产妇的子宫切除率、凝血功能异常发生率显著低于对照组(t=3.722和4.628,P<0.05),两组患者均未发生严重的产科并发症,其中观察组患者发热、慢性盆腔疼痛、术后血栓形成、伤口愈合不良、术后月经量降低的发生率均显著低于对照组,差异具有统计学意义(t=6.274、4.726、3.872、3.872和4.218,P<0.05)。结论子宫动脉结扎术和子宫动脉造影栓塞术对植入型凶险型前置胎盘患者具有一定的临床疗效,其中子宫动脉结扎手术时间短,术后并发症发生率低,具有较好的有效性和安全性。

关键词：植入型凶险型前置胎盘剖宫产子宫动脉结扎术子宫切除止血效果

Review of the research on the development and utilization of clay-type lithium resources

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Particuology 2024年第4期87卷 46-53页

作者： Ruiqi Xie zhihui Zhao Xiong Tong Xian Xie Qiang song Peiqiang Fan Faculty of Land Resource Engineering Kunming University of Science and TechnologyKunming650093China Yunnan Engineering Research Center for Metal Tailings Resource Utilization Kunming650093China

Since the demands for lithium have been in explosive growth recently and several great clay lithium resources were founded in China,the development and utilization of clay-type lithium resources become a hot *** order to provide a guidance for the concentration and extracting lithium of clay-type lithium resources,this review systematically summarized the main types and characteristics of clay-type lithium resources and the research status of lithium extraction from clay lithium ***,the flotation research status of the main mineral of clay lithium ore was also ***,we discussed the difficulties in the development and utilization of clay-type lithium ore and put forward the subsequent research *** paper can provide a guidance for the con-centration and extracting lithium of clay-type lithium resources in the future.

关键词： Clay lithium Clay mineral flotation Lithium extraction Leaching

Risks and Uncertainty Analysis on International Logistics

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Chinese Business Review 2005年第4期4卷 41-44页

作者： zhihui song Shijiazhuang Railway Institute

With the development of globalization, more and more companies are under global operation. What coming with it, on one hand is chance and opportunity; on the other hand is risk and uncertainty. This paper aims to specify the potential and current risks and uncertainty that may be met in international logistics, then seeks some practical methods to dodge and solve them.

关键词： risks and uncertainty internal external bullwhip effect

PEMWE钛双极板表面碳化钛复合涂层制备与性能研究

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绿色科技 2024年第12期26卷 246-250,256页

作者：王银虎肖天涛宋智慧刘月张衡王新东北京科技大学冶金与生态工程学院北京100083

质子交换膜电解池中钛双极板起着传导电流、支撑结构以及传输水气的作用,但在酸性富氧高极化环境中,其表面容易氧化和腐蚀,导致电解效率下降。采用氮气雾化喷涂-热处理的方法在TA1钛基体表面制备碳化钛/环氧树脂/聚酰亚胺复合涂层。复... 详细信息

质子交换膜电解池中钛双极板起着传导电流、支撑结构以及传输水气的作用,但在酸性富氧高极化环境中,其表面容易氧化和腐蚀,导致电解效率下降。采用氮气雾化喷涂-热处理的方法在TA1钛基体表面制备碳化钛/环氧树脂/聚酰亚胺复合涂层。复合涂层中碳化钛颗粒主要提供高导电性和耐蚀性,而黏结剂主要提高涂层与基体的结合力。当黏结剂中环氧树脂与聚酰亚胺树脂质量比为4∶1时制备的样品表面均匀无裂纹,在140 N/cm^(2)压力下,该样品的接触电阻(1.35 mΩ/cm^(2))比钛基体低了28.95%。在1.8 V(相对于可逆氢电极)恒电位极化过程中,具有碳化钛复合涂层的样品表现出更低的极化电流密度和更高的稳定性。

关键词：质子交换膜钛双极板碳化钛氮气雾化喷涂界面接触电阻