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Journal of Animal Science and Biotechnology 2024年第3期15卷 971-986页

作者： Haorong He Yuanhang Wei Yuqi Chen xiyu zhao Xiaoxu Shen Qing Zhu Huadong Yin Key Laboratory of Livestock and Poultry Multi‑Omics Ministry of Agriculture and Rural AffairsCollege of Animal Science and TechnologySichuan Agricultural UniversityChengduSichuan 611130China Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province Sichuan Agricultural UniversityChengduSichuan 611130China

Background The reproductive performance of chickens mainly depends on the development of ***-mal follicle development can lead to decreased reproductive performance and even ovarian disease among *** is the only non-human animal with a high incidence of spontaneous ovarian *** recent years,the involvement of circRNAs in follicle development and atresia regulation has been *** In the present study,we used healthy and atretic chicken follicles for circRNA *** results showed differential expression of *** was then confirmed that circRALGPS2 can translate into a protein,named cir-cRALGPS2-212aa,which has IRES ***,we found that circRALGPS2-212aa promotes apoptosis and autophagy in chicken granulosa cells by forming a complex with PARP1 and *** Our results revealed that circRALGPS2 can regulate chicken granulosa cell apoptosis and autophagy through the circRALGPS2-212aa/PARP1/HMGB1 axis.

关键词： Apoptosis Autophagy Chicken CircRALGPS2 Follicle atresia PARP1 RNC-seq

基于立体视觉与姿态识别的天轨机器人跟踪伺服控制

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电子测量技术 2024年第4期47卷 73-80页

作者：赵希禹杨芳艳李家龙上海理工大学机械工程学院上海200093

针对双足机器人步态训练平台自动化程度低,调试步态的过程中单人操作时辅助机器人行走和状态信息实时观测协调困难的问题,该文提出了一套基于立体视觉和姿态识别的天轨机器人跟踪伺服系统。首先利用双目相机取景,对左右目相机画面进行... 详细信息

针对双足机器人步态训练平台自动化程度低,调试步态的过程中单人操作时辅助机器人行走和状态信息实时观测协调困难的问题,该文提出了一套基于立体视觉和姿态识别的天轨机器人跟踪伺服系统。首先利用双目相机取景,对左右目相机画面进行匹配后获取图像中每个像素点的深度信息,基于获取到的带有深度信息的图像,对双足机器人的姿态进行识别,获取每个关节点的深度信息,根据关节深度信息判断双足机器人运动状态制定跟踪策略进行伺服控制,由于引入了姿态识别,可以根据双足机器人的姿态变化实现更高程度的自动化跟踪保护。实验结果表现出高自动化程度和高动态的跟踪表现。

关键词：立体视觉姿态识别跟踪伺服控制

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煤岩瓦斯动力灾害风险智能判识与融合预测

能源与环保 2024年第5期46卷 71-77页

作者：罗卫东杨乘胡金春袁荣方赵喜宇贵州能源产业研究院有限公司贵州贵阳550025 贵州林东煤业发展有限责任公司龙凤煤矿贵州毕节551700

煤岩瓦斯动力灾害对矿井安全生产造成了极大威胁,由于诱发因素众多,其内在的致灾机理难以被有效探明。为实现煤岩瓦斯动力灾害风险的智能识别与预测,建立了基于CNN的煤岩瓦斯动力灾害风险智能判识与融合预测模型。模型中采用Box-plot与M... 详细信息

煤岩瓦斯动力灾害对矿井安全生产造成了极大威胁,由于诱发因素众多,其内在的致灾机理难以被有效探明。为实现煤岩瓦斯动力灾害风险的智能识别与预测,建立了基于CNN的煤岩瓦斯动力灾害风险智能判识与融合预测模型。模型中采用Box-plot与MI方法进行数据清洗,并利用GRA方法建立包含10个风险因素在内的煤岩瓦斯动力灾害的指标体系,通过PCA方法对数据进行降维处理后,输入至CNN模型中进行融合与预测。通过与ANN、BP、RF、SVM模型的对比分析表明,基于CNN的煤岩瓦斯动力灾害风险智能判识与融合预测模型具有更高的准确性,同时此模型的收敛速度更快,验证了此模型在实际工程中具有更可靠的工程价值。

关键词：煤岩瓦斯动力灾害卷积神经网络预测模型风险识别深度学习

Effect of detrapping on up-conversion charging in LaMgGa_(11)O_(19):Pr^(3+) persistent phosphor

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Journal of Rare Earths 2021年第12期39卷 1492-1496,I0002页

作者： xiyu zhao Chenlin Li Feng Liu Xiao-jun Wang Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education Northeast Normal UniversityChangchun 130024China Department of Physics Georgia Southern UniversityStatesboroGA30460USA

Up-conversion charging(UCC)is a promising approach for charging storage phosphors using low-energy excitation light *** further understanding the UCC,research on the competition between trapping and detrapping during illumination is essentially *** we demonstrate the effect of detrapping on UCC dynamics by a rate equation ***,taking LaMgGa_(11)O_(19):Pr^(^(3+))phosphor as an example,we experimentally verified the dependence of illumination dose and duration on the thermoluminescence intensities using 450 nm laser *** present model and experimental approach appear to be transferable to other phosphors,Thus,many existing persistent phosphors can now be revisited,paving the way toward advancing the understanding of UCC.

关键词： Up-conversion charging Pr^(3+)ion Detrapping Rate equation Thermolumineseence Rare earths

City-wide vehicle dispatching for multi-hop ridesharing package delivery

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The Journal of China Universities of Posts and Telecommunications 2020年第5期27卷 82-90页

作者： zhao xiyu Zhang Xuefei Liu Junjie Wang Yining School of Telecommunication Engineering Beijing University of Posts and TelecommunicationsBeijing 100876China

The city-wide ridesharing package delivery is becoming popular as it provides a convenience such as extra profits to the vehicle’s driver and high traffic efficiency to the *** vehicle dispatching is a significant issue to improve the ridesharing efficiency in package *** classic one-hop ridesharing package delivery requires the highly similar paths between the package and the vehicle given by the limited detour time,which depresses the ridesharing *** tackle this problem,a city-wide vehicle dispatching strategy for the multi-hop ridesharing package delivery was proposed,where a package is permitted to be delivered sequentially by different vehicles,until arriving the *** study formulates the vehicle dispatching as a maximum multi-dimensional bipartite matching problem with the goal of maximizing the total saving distance given by the limited detour time and ridesharing capacity.A multi-hop ridesharing vehicle dispatching algorithm was proposed to solve this problem by selecting the farthest reachable locker and multi-dimensional *** results based on real vehicle dataset of Beijing demonstrate the effectiveness and efficiency of the proposed vehicle dispatching strategy.

关键词： multi-hop ridesharing package delivery vehicle dispatching

Embedded high-quality ternary GaAs_(1−x)Sb_(x) quantum dots in GaAs nanowires by molecular-beam epitaxy

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Journal of Semiconductors 2024年第8期45卷 18-24页

作者： xiyu Hou Lianjun Wen Fengyue He Ran Zhuo Lei Liu Hailong Wang Qing Zhong Dong Pan Jianhua zhao State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049China

Semiconductor quantum dots are promising candidates for preparing high-performance single photon sources.A basic requirement for this application is realizing the controlled growth of high-quality semiconductor quantum ***,we report the growth of embedded GaAs_(1−x)Sb_(x) quantum dots in GaAs nanowires by molecular-beam *** is found that the size of the GaAs_(1−x)Sb_(x) quantum dot can be well-defined by the GaAs *** dispersive spectroscopy analyses show that the antimony content x can be up to 0.36 by tuning the growth *** GaAs_(1−x)Sb_(x) quantum dots exhibit a pure zinc-blende *** addition,we have developed a new technology to grow GaAs passivation layers on the sidewalls of the GaAs_(1−x)Sb_(x) quantum *** from the traditional growth process of the passivation layer,GaAs passivation layers can be grown simultaneously with the growth of the embedded GaAs_(1−x)Sb_(x) quantum *** spontaneous GaAs passivation layer shows a pure zinc-blende phase due to the strict epitaxial relationship between the quantum dot and the passivation *** successful fabrication of embedded high-quality GaAs_(1−x)Sb_(x) quantum dots lays the foundation for the realization of GaAs_(1−x)Sb_(x)-based single photon sources.

关键词： semiconductor quantum dot nanowire GaAs_(1−x)Sb_(x) molecular-beam epitaxy

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油画艺术元素在现代服饰图案中的应用研究

西部皮革 2022年第8期44卷 104-106页

作者：赵希羽西京学院

油画艺术元素作为服饰图案设计中的创作题材，可以进一步丰富服饰产品图案的主题内容与形式，运用油画中唯美的色彩及线条语言，可以对服饰产品图案进行有效提升。分析油画艺术元素在服饰图案中的色彩价值与美学价值，以及油画艺术元素... 详细信息

油画艺术元素作为服饰图案设计中的创作题材，可以进一步丰富服饰产品图案的主题内容与形式，运用油画中唯美的色彩及线条语言，可以对服饰产品图案进行有效提升。分析油画艺术元素在服饰图案中的色彩价值与美学价值，以及油画艺术元素对现代服饰图案中的文化、样式、活力影响，总结了油画艺术元素在现代服饰图案中的应用与设计方法，以期通过油画艺术元素融合服饰图案来进一步促进服饰产品的多元化发展。

关键词：油画艺术元素服饰图案美学价值款式

Network analysis of suicide ideation and depression-anxiety symptoms among Chinese adolescents

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General Psychiatry 2024年第2期37卷 216-223页

作者： Shuyin Xu Yumeng Ju xiyu Wei Wenwen Ou Mohan Ma Guanyi Lv Xiaotian zhao Yaqi Qin Yunjing Li Liang Li Mei Huang Siqi Yang Yimei Lu Yafei Chen Junwu Liu Jin Liu Bangshan Liu Yan Zhang Department of Psychiatry National Clinical Research Center for Mental Disordersand National Center for Mental DisordersThe Second Xiangya Hospital of Central South UniversityChangshaHunanChina Mental Health Institute of Central South University China National Technology Institute on Mental DisordersHunan Technology Institute of PsychiatryHunan Key Laboratory of Psychiatry and Mental HealthHunan Medical Center for Mental HealthChangshaHunanChina

Background The co-occurrence of depression and anxiety among adolescents is typically associated with suicide *** The study aimed to investigate the symptom-level relationship between suicide ideation and the comorbidity of depression and *** 1501 adolescents aged 12-19 years were assessed using the Patient Health Questionnaire(PHQ-9)and the Generalized Anxiety Disorder Scale,and 716 adolescents who scored≥5 on both scales were selected as *** analysis was used to identify the network structure of depressive symptoms and anxiety *** were categorised into either the suicide ideation or non-suicide ideation groups based on their scoring on the suicide-related item in PHQ-9.A comparison was made between the depression-anxiety symptom networks of the two ***‘Restlessness’,‘sad mood’and‘trouble relaxing’were the most prominent central symptoms in the depression-anxiety symptom network,and‘restlessness’,‘nervousness’and‘reduced movement’were the bridge symptoms in this network.‘Sad mood’was found to be directly related to‘suicide ideation’with the highest *** network structure was significantly different in properties between the suicide ideation group and the non-suicide ideation group,with‘restlessness’and‘sad mood’exhibiting significantly higher influence in the network of the suicide ideation group than that in the non-suicide ideation *** Restlessness and sad mood could be targeted for the intervention of depression-anxiety symptoms among adolescents with suicide ideation.

关键词： symptoms adolescent assessed

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持续性姿势-感知性头晕的治疗进展

中华神经医学杂志 2020年第2期19卷 214-216页

作者：赵希宇岳伟天津医科大学临床医学院天津300000 天津市环湖医院神经内科天津市脑血管与神经变性重点实验室 300350

持续性姿势-感知性头晕(PPPD)是一种慢性功能性前庭障碍,主要表现为超过3个月的持续非眩晕性头晕、不稳,可能的发病机制包括前庭通路与焦虑相关神经网络重叠机制、经典和操作性条件反射建立假说、再适应失败假说、脑区活动的改变和分子... 详细信息

持续性姿势-感知性头晕(PPPD)是一种慢性功能性前庭障碍,主要表现为超过3个月的持续非眩晕性头晕、不稳,可能的发病机制包括前庭通路与焦虑相关神经网络重叠机制、经典和操作性条件反射建立假说、再适应失败假说、脑区活动的改变和分子病理学机制,目前的治疗方法主要有心理治疗、药物治疗、前庭康复治疗、行为认知治疗以及非侵入性迷走神经刺激。本文主要围绕上述内容综述如下。

关键词：头晕前庭平衡康复治疗非侵入性迷走神经刺激

运动公平视角下寒地城市绿地格局特征及优化研究--以哈尔滨为例

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中国园林 2024年第4期40卷 57-63页

作者：侯韫婧陈溪雨赵艺许大为东北林业大学园林学院哈尔滨150006

快速城镇化背景下慢性疾病频发,绿地作为公众运动健身重要场所在提高公共健康水平方面发挥着重要意义。寒地冬季漫长,严寒气候极大程度限制了居民的户外运动,特别是工业属性较强的老城区,绿地格局先天劣势,加剧了运动不公平现象。基于... 详细信息

快速城镇化背景下慢性疾病频发,绿地作为公众运动健身重要场所在提高公共健康水平方面发挥着重要意义。寒地冬季漫长,严寒气候极大程度限制了居民的户外运动,特别是工业属性较强的老城区,绿地格局先天劣势,加剧了运动不公平现象。基于运动公平视角,构建寒地城市绿地格局供需指标体系,评估绿地耦合协调发展水平;并利用基尼系数与人均绿地面积区位熵探寻季节分异下的绿地格局公平性。结果表明:(1)寒地城市绿地运动供需空间严重失衡,绿地格局耦合协调度较差,运动公平性差距悬殊,总体呈现西北好,东南差的分异特征;(2)西北部为原发展核心,绿地等基础设施建设完备;随着城市扩张,东南部成为新发展核心,但依旧以工业为导向,绿地建设不足,导致绿地分布极端,空间分异明显;(3)季节分异对运动公平产生不同结果,严寒气候增加了绿地可达的阻力,不平等性随着气温的下降而增加;由于缺少公共绿地,东南部在冬季面临更加严重的不公平现象。基于对关键指标的优化测算,优化更新寒地城市绿地格局,为落地环境干预健康的“健康中国”国家战略提供理论与实践参考。

关键词：风景园林绿地格局运动公平寒地城市季节分异