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家长视角下生命早期过敏性疾病管理的挑战与应对策略

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健康研究 2024年第4期44卷 369-374页

作者：何逸楠叶成荫杭州师范大学公共卫生学院浙江杭州311121

近年来,我国儿童过敏性疾病的发病率和患病率显著上升。文章阐述儿童过敏性疾病的流行现状和不良影响,强调家长在生命早期过敏性疾病管理中的关键角色;并基于保护动机的健康行为改变理论,提出通过加强家长的过敏知识教育和防治技能培训... 详细信息

近年来,我国儿童过敏性疾病的发病率和患病率显著上升。文章阐述儿童过敏性疾病的流行现状和不良影响,强调家长在生命早期过敏性疾病管理中的关键角色;并基于保护动机的健康行为改变理论,提出通过加强家长的过敏知识教育和防治技能培训,改善患儿的预后和家庭生活质量。

关键词：生命早期过敏性疾病家长健康行为改变理论健康管理

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低浓度煤矿瓦斯氧化催化剂研究进展

能源环境保护 2024年第3期38卷 74-82页

作者：武金玮张明康叶城荫芮泽宝中山大学化学工程与技术学院广东珠海519082

在煤炭开采的过程中,低浓度瓦斯的涌出会造成大量温室气体的排放。通过催化氧化反应将瓦斯转化为二氧化碳,可以有效减少温室效应。然而,目前所报道催化剂的活性与稳定性大多难以满足实际应用的需求。简要论述了煤矿瓦斯催化氧化的反应机... 详细信息

在煤炭开采的过程中,低浓度瓦斯的涌出会造成大量温室气体的排放。通过催化氧化反应将瓦斯转化为二氧化碳,可以有效减少温室效应。然而,目前所报道催化剂的活性与稳定性大多难以满足实际应用的需求。简要论述了煤矿瓦斯催化氧化的反应机理,总结了近期低浓度煤矿瓦斯氧化催化剂的研究进展,并探讨了未来高效稳定煤矿瓦斯氧化催化剂的设计思路。甲烷C—H键活化是煤矿瓦斯催化氧化反应的决速步骤。高活性的贵金属催化剂和热稳定性好的非贵金属氧化物催化剂是两类常用的瓦斯氧化催化剂。对于贵金属催化剂,活性金属的类型与分散性对C—H活化性能至关重要,可以通过改性载体与掺杂助剂来调控金属的分散度。对于非贵金属氧化物催化剂,可以通过调变催化剂的结构或掺杂助剂来调控比表面积、氧空位浓度、化学键等性质,从而改善催化剂的活性。此外,煤矿瓦斯氧化催化剂还需要具备优异的耐水和耐硫性能。通过构筑包覆结构或构筑特殊金属结构,可以促进水的解吸;通过掺杂助剂调控活性金属的电子结构与催化剂表面基团,也可以提高催化剂的耐水稳定性。构筑包覆结构可以阻止含硫组分在活性位点的吸附,而添加牺牲剂可以优先吸附含硫组分,是常用的提升催化剂耐硫稳定性的策略之一。

关键词：煤矿瓦斯催化氧化 C—H活化耐水稳定性耐硫稳定性

Adaptive Sliding Mode Control for TCP Networks with Input Saturation

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Adaptive Sliding Mode Control for TCP Networks with Input Sa...

Global Sliding Mode Control based on Observer for TCP Network

第25届中国控制与决策会议

作者： chengyin ye Yuanwei Jing Junxia Chu School of Information Science and Engineering Northeastern University School of Computer and Communication Engineering Liaoning Shihua University School of Information and Control Engineering Liaoning Shihua University

ISBN: (纸本)9781467355339

For the congestion control of the transmission control protocol （TCP） networks in presence of input saturation and the lumped uncertainty, an active queue management algorithm is proposed based on adaptive sliding mode control. One adaptive law is designed to estimate the lumped uncertainty such that the need for knowing the bound in advance is eliminated. The other adaptive law is proposed to ensure the system stabilty considering the TCP networks subjected to input saturation. Using these adaptive laws, an adaptive sliding mode controller is presented to guarantee asymptotic convergence and robustness against the lumped uncertainty. Numerical simulations are performed to show that the proposed scheme is effective in various network scenarios.

关键词： Congestion Control TCP Networks Input Saturation Adaptive Sliding Mode Control

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Global Sliding Mode Control based on Observer for TCP Networ...

基于PacketTracer和Onenet的物联网家居系统

第26届中国控制与决策会议

作者： Tao Zhong Jing Yuanwei ye chengyin Jiang Nan College of Information Science and Engineering Northeastern University College of Computer and Communication Engineering Liaoning Shihua University

ISBN: (纸本)9781479937066

The problem of network congestion control is studied for a class of TCP network systems with state delay and external disturbance. Because the state of the system is not fully measurable, the state observer is designed. The sufficient conditions for the robust stability of the error system is given based on linear matrix inequality（LMI） and Lyapunov stability theory. According to the reaching condition of sliding mode control theory, the global sliding mode controller is designed. Global sliding mode control is used to eliminates the reaching phase of the sliding mode control and ensure the robustness of the whole control process. The simulation results show that the proposed algorithm has good robustness and the instantaneous queue length can converge to the expected queue length effectively.

关键词： TCP network network congestion control global sliding mode state observer active queue management

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移动信息 2024年第6期46卷 313-315页

作者：黄良歌叶成荫程少杰侯旭晖武旭鹏辽宁石油化工大学信息与控制工程学院辽宁抚顺113001

针对实物物联网家居成本过高、搭建过程复杂的问题,文中使用PacketTracer和OneNet云平台设计了一种物联网智能家居系统。该系统使用PacketTracer方法进行了设计,并通过MCU将智能家居设备远程接入OneNet云平台。测试结果表明,与传统的实... 详细信息

针对实物物联网家居成本过高、搭建过程复杂的问题,文中使用PacketTracer和OneNet云平台设计了一种物联网智能家居系统。该系统使用PacketTracer方法进行了设计,并通过MCU将智能家居设备远程接入OneNet云平台。测试结果表明,与传统的实物物联网家居相比,该系统不仅缩短了设计周期,还能实现对家居设备的远程控制。

关键词：物联网家居 Packet Tracer OneNet云平台远程控制

基于图像分块和多头注意力机制的气象识别研究

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辽宁石油化工大学学报 2024年第2期44卷 83-90页

作者：赵旭峰刘琳琳曹宇叶成荫郭宗凯辽宁石油化工大学信息与控制工程学院辽宁抚顺113001 辽宁省气象装备保障中心辽宁沈阳110166

基于图像对天气现象进行识别,对天气状况的分析至关重要。针对传统的机器学习方法对各类天气特征难以准确提取且天气现象分类效果差,以及深度学习对天气现象识别的准确率不高的问题,提出了基于图像分块和多头注意力机制的天气识别模型... 详细信息

基于图像对天气现象进行识别,对天气状况的分析至关重要。针对传统的机器学习方法对各类天气特征难以准确提取且天气现象分类效果差,以及深度学习对天气现象识别的准确率不高的问题,提出了基于图像分块和多头注意力机制的天气识别模型。该模型首次将Swin Transformer引入天气识别领域中,采用了窗口多头自注意层与移位窗口多头自注意层相结合的多头注意力机制。结果表明,其区域相关特征提取能力弥补传统方法的不足,能够提取图像中复杂的天气特征。采用迁移学习对模型进行训练,将微调模型的全连接参数输入到Softmax分类器,实现了对多类别天气图像的识别,识别准确率为99.20%,优于对比的几种主流方法。因此,该方法可以作为天气识别模块应用于地面气象识别系统。

关键词：天气识别图像分块多头注意力机制区域相关特征迁移学习

A new approach to dissecting complex traits by combining quantitative trait transcript (QTT) mapping and diallel cross analysis

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Chinese Science Bulletin 2012年第21期57卷 2695-2700页

作者： YANG DaiGang ye chengyin MA XiongFeng ZHU ZhiHong ZHOU XiaoJian WANG HaiFeng MENG QingQin PEI XiaoYu YU ShuXun ZHU Jun Cotton Research Institute Chinese Academy of Agricultural SciencesState Key Laboratory of Cotton BiologyAnyang 455000China Department of Agronomy Zhejiang UniversityHangzhou 310058China

A promising way to uncover the genetic architectures underlying complex traits may lie in the ability to recognize the genetic variants and expression transcripts that are responsible for the traits' ***,statistical methods capable of investigating the association between the inheritance of a quantitative trait and expression transcripts are still *** this study,we described a two-step approach that we developed to evaluate the contribution of expression transcripts to the inheritance of a complex ***,a mixed linear model approach was applied to detect significant trait-associated differentially expressed ***,conditional analysis were used to predict the contribution of the differentially expressed genes to a target *** cross data of cotton was used to test the application of the *** proposed that the detected differentially expressed transcripts with a strong impact on the target trait could be used as intermediates for screening lines to improve the traits in plant and animal breeding *** can benefit the discovery of the genetic mechanisms underlying complex traits.

关键词：双列杂交分析数量性状成绩差异表达基因映射解剖混合线性模型遗传变异

Femtocell网络的鲁棒议价博弈功率控制

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信息与控制 2019年第3期48卷 316-322页

作者：叶成荫梁炜郑萌中国科学院沈阳自动化研究所机器人学国家重点实验室辽宁沈阳110016 中国科学院机器人与智能制造创新研究院辽宁沈阳110016 辽宁石油化工大学计算机与通信工程学院辽宁抚顺113001 广州中国科学院沈阳自动化研究所分所广东广州511458

针对具有不完美信道状态信息的Femtocell双层网络,为了保证网络效用最大化、最小服务质量要求及Femtocell用户之间的效用公平,提出了基于议价博弈的鲁棒功率控制方案.在保证宏小区用户正常传输情况下,考虑到Femtocell家庭用户的最小服... 详细信息

针对具有不完美信道状态信息的Femtocell双层网络,为了保证网络效用最大化、最小服务质量要求及Femtocell用户之间的效用公平,提出了基于议价博弈的鲁棒功率控制方案.在保证宏小区用户正常传输情况下,考虑到Femtocell家庭用户的最小服务质量要求,将Femtocell网络的鲁棒功率控制问题转化为议价博弈功率控制问题.为了保证Femtocell家庭用户之间的公平性,给出了Kalai-Smorodinsky(K-S)议价博弈解,证明了议价博弈解的存在性和唯一性,并提出了一种基于二分查找算法的分布式鲁棒功率控制方案.仿真结果表明,所提出的算法不仅具有较好的收敛性能,而且能够较好地保证用户之间的公平性.

关键词： Femtocell网络议价博弈功率控制公平性

Investigations of Water Flow Behaviors Induced by Local Temperature Variations through a Single Rough Fracture for the Enhanced Geothermal Systems

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Journal of Thermal Science 2024年第3期33卷 1055-1064页

作者： LI Jiawei ye Lin Department of Energy and Power Engineering Tsinghua UniversityBeijing100084China School of Power and Energy Northwestern Polytechnical UniversityXi’an710072China

In recent years,Enhanced Geothermal System(EGS)technologies have been applied to the geothermal resources production in the Hot Dry Rock(HDR).The core of EGS technologies is to adopt hydraulic fracturing in the reservoir to create a connected network of discrete fractures with the consideration of water as a working fluid for hydraulic fracturing and heat *** paper investigates the characteristics of water flow behaviors through a single rough fracture under different temperature and pressure conditions.A single fracture model with rough fracture surfaces is constructed and then characterized,and influences of the anisotropic factor on the average tortuosity and frictional resistance coefficient of water flow through a single fracture with rough surfaces have been compared and *** consideration of other impacting factors(temperature,pressure,fracture roughness),the impact of mass flow rate has also been *** simulation results present that changes of average tortuosity for water flow through a single rough facture are mainly affected by *** can be observed that higher temperature leads to larger average tortuosity but the frictional resistance coefficient shows an opposite *** for pressure conditions,it is found that effects of pressure on average tortuosity and frictional resistance coefficient is very small,which can be neglected under high pressure ***,the average tortuosity shows a progressively linear relationship with the mass flow *** the contrary,the frictional resistance coefficient has a negative relationship with the mass flow *** is revealed that when the mass flow rate reaches a critical point,the influences of temperature on the frictional resistance coefficient will be *** of single rough fractures with different anisotropic factors show that values of average tortuosity and frictional resistance coefficient have positive relationships with the increase

关键词： single rough fracture tortuosity frictional resistance enhanced geothermal system