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Neural Regeneration Research 2025年第2期20卷 483-484页

作者： yun li Junfang Wu Department of Anesthesiology&Shock Trauma and Anesthesiology Research(STAR)CenterUniversity of Maryland School of MedicineBaltimoreMDUSA

Traumatic spinal cord injury(SCI)is a devastating exogenous injury with long-lasting consequences and a leading cause of death and disability *** in assistive technology,rehabilitative interventions,and the ability to identify and intervene in secondary conditions have significantly increased the long-term survival rate of SCI patients,with some people even living well into their seventh or eighth *** survival changes have led neurotrauma researchers to examine how SCI interacts with brain *** health and epidemiological data showed that patients with long-term SCI can have a lower life expectancy and quality of life,along with a higher risk of comorbidities and complications.

关键词： alterations inflammation injury

Role of nutrition in diabetes mellitus and infections

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World Journal of Clinical Cases 2025年第3期13卷 1-8页

作者： Xue-Lu Yu li-yun Zhou Xiao Huang Xin-Yue li Ming-Ke Wang Ji-Shun Yang Naval Medical Center of PLA Naval Medical UniversityShanghai 200052China

In this editorial,we have commented on the article that has been published in the recent issue of World Journal of Clinical *** authors have described a case of unilateral thyroid cyst and have opined that the acute onset of infection may be linked to diabetes mellitus(DM).We have focused on the role of nutrition in the association between DM and *** with DM are at a high risk of infection,which could also be attributed to nutrition-related *** interventions for patients with diabetes are mainly based on a low-calorie diet,which can be achieved by adhering to a low-carbohydrate ***,dietary fiber supplementation is recommended to maintain the diversity of the gut ***,high-quality protein can prevent the increased risk of infection due to *** of vitamins C,vitamins A,vitamins D,and folic acid improves blood sugar control and facilitates immune *** deficiencies augment the risk of infection,but the relationship with diabetes is mostly U-shaped and a good intake should be maintained.

关键词： Diabetes mellitus Infection Macronutrients Vitamins Minerals

超声激励不同含水量煤体瓦斯吸附规律实验研究

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煤矿现代化 2025年第1期34卷 112-116页

作者：李云山西潞安集团余吾煤业有限责任公司山西长治046103

超声激励对煤层气开发具有增渗促解效应。本文开展了超声激励前后不同含水煤体瓦斯吸附实验,研究了煤体含水量对超声作用下瓦斯吸附量行为的影响规律。结果表明:超声作用后原煤、干燥煤和饱水煤对瓦斯的最大吸附量分别增加了27.65%、15.... 详细信息

超声激励对煤层气开发具有增渗促解效应。本文开展了超声激励前后不同含水煤体瓦斯吸附实验,研究了煤体含水量对超声作用下瓦斯吸附量行为的影响规律。结果表明:超声作用后原煤、干燥煤和饱水煤对瓦斯的最大吸附量分别增加了27.65%、15.76%和47.30%,与吸附解吸速率有的常数b值分别增加了14.29%、6.06%和23.53%,有利用于促进煤体瓦斯的解吸扩散过程。由此表明,超声激励对煤体瓦斯吸附解吸能力有显著的改善效果,煤样含水量越高,超声引起的吸附能力提升幅度越明显。

关键词：瓦斯吸附解吸超声激励煤层气

Effects of bias on spin-polarized transport properties in double magnetic tunnel junctions

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功能材料 2004年第Z1期35卷 519-521页

作者： li yun Department of Materials Science and Engineering Yunnan UniversityKunming 650091China

Spin-polarized transport properties in Fe /insulator (Ⅰ) (semiconductor (S)) / Co / I (S) / Fe double junction systems are investigated theoretically, current density is asymmetry as function of the direction of applied bias, and evaluated using generalized formalism base on the non-equilibrium Green's function, which is implemented with calculation of real space Green's function in tight-binding model in linear response region.

关键词： spin-polarized transport magnetic tunneljunction spin accumulation tunneling

Robust Adaptive Attitude Control for Non-rigid Spacecraft With Quantized Control Input

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IEEE/CAA Journal of Automatica Sinica 2020年第2期7卷 472-481页

作者： yun li Fan Yang School of Engineering New York UniversityNew York 11201 USA Beijing National Research Center for Information Science and Technology(BNRist) the Department of AutomationTsinghua UniversityBeijing 100084China

In this paper,an adaptive backstepping control scheme is proposed for attitude tracking of non-rigid spacecraft in the presence of input quantization,inertial uncertainty and external *** control signal for each actuator is quantized by sector-bounded quantizers,including the logarithmic quantizer and the hysteresis *** describing the impact of quantization in a new affine model and introducing a smooth function and a novel form of the control signal,the influence caused by input quantization and external disturbance is properly compensated ***,with the aid of the adaptive control technique,our approach can achieve attitude tracking without the explicit knowledge of inertial *** existing attitude control schemes for spacecraft,in this paper,the quantization parameters can be unknown,and the bounds of inertial parameters and disturbance are also not *** addition to proving the stability of the closed-loop system,the relationship between the control performance and design parameters is *** results are presented to illustrate the effectiveness of the proposed scheme.

关键词： Adaptive control attitude control input quantization spacecraft time-varying inertial parameter

Gravity-based heuristic for set covering problems and its application in fault diagnosis

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Journal of Systems Engineering and Electronics 2012年第3期23卷 391-398页

作者： yun li Zhiming Cai Naval University of Engineering Wuhan 430033 E R. China Troops 54645 of the PLA Zhanjiang 524022 P. R. China

A novel algorithm named randomized binary gravita- tional search （RBGS） algorithm is proposed for the set covering problem （SCP）. It differs from previous SCP approaches because it does not work directly on the SCP matrix. In the proposed algo- rithm, the solution of SCP is viewed as multi-dimension position of objects in the binary search space. All objects in the space attract each other by the gravity force, and this force causes a global movement of all objects towards the objects with heavier masses which correspond to good solutions. Computation results show that the proposed algorithm is very competitive. In addition, the proposed aigodthm is extended for SCP to solve the fault diagno- sis problem in graph-based systems.

关键词： set covering problem (SCP) gravity force binary search space fault diagnosis.

Systematic temperature signaling regulates behavior plasticity

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Protein & Cell 2011年第10期2卷 774-775页

作者： yun li Beijing Institutes of life Science Chinese Academy of SciencesBeijing 100101China

The perception and response of environmental temperatures are vital for the survival,fitness and reproduction of all animal *** a critical variable that affects the rate and nature of all biological and chemical reactions of the body,temperature has dramatic effect on animal physiology and *** such as mammals maintain a relatively constant core body temperature despite of ambient temperature;changes of body temperature of transgenic mice greatly affect their energy efficiency and life span(Clos et al,1993).However,Poikilotherms such as C.

关键词： behavior plasticity maintain

The new RS CVn binary V1034 Her revisited and the orbital period—activity relation of short-period RS CVn binaries using photometric distortion amplitude

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Research in Astronomy and Astrophysics 2012年第4期12卷 433-442页

作者： li-yun Zhang College of Science/Department of Physics&NAOC-GZU-Sponsored Center for Astronomy Research Guizhou UniversityGuiyang 550025China

This paper presents new CCD BV RI light curves of the newly discovered RS CVn eclipsing binary V1034 Her in 2009 and 2010, the shapes of which are different from previously published results. They show an asymmetric outside eclipse, and we try to use a spot model to explain the phenomenon. Using the Wilson-Devinney program with a one-spot or two-spot model, photometric solutions of the system and starspot parameters were derived. Comparing the two results shows that the case of two spots is more successful in reproducing light-curve distortions. Looking at all the spot longitudes, the trend is towards active longitude belts and each active longitude belt may switch. Comparing the light curves from 2009 and 2010, we can see that the light curve changes over the long time scale of a year, especially in phase 0.25. In addition, we also collected the values of the maximum amplitudes of photometric distortion of the short-period RS CVn binary. We found for the first time that there is a trend of increasing activity with decreasing orbital period. Finally, fitting all available light minimum times including our newly obtained ones with a polynomial function confirmed that the orbital period of V1034 Her increased.

关键词： stars: binaries: late-type — stars: binaries: eclipsing — stars: individuals (V1034 Her) — stars: spots

基于语音信号时频特征融合的帕金森病检测方法

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郑州大学学报（理学版） 2025年第1期57卷 53-60页

作者：王晨哲季薇郑慧芬李云南京邮电大学计算机学院江苏南京210023 南京邮电大学通信与信息工程学院江苏南京210003 南京医科大学附属老年医院江苏南京210009

发音障碍是帕金森病的早期症状之一。近年来,基于语音信号的帕金森病检测的研究大多采用梅尔刻度下的相关语音特征与深度神经网络模型相结合的方法。然而,现有的模型无法充分关注语音信号的全局时序信息,且梅尔刻度特征在准确表征帕金... 详细信息

发音障碍是帕金森病的早期症状之一。近年来,基于语音信号的帕金森病检测的研究大多采用梅尔刻度下的相关语音特征与深度神经网络模型相结合的方法。然而,现有的模型无法充分关注语音信号的全局时序信息,且梅尔刻度特征在准确表征帕金森病的病理信息方面效果有限。为此,提出了一种基于语音时频特征融合的帕金森病检测方法。首先,提取语音的梅尔频率倒谱系数,并将其作为模型的输入。接着,在已有的S-vectors模型中引入Conformer编码器模块,以提取语音的时域全局特征。最后,将与帕金森病语音检测相关的频域全局特征嵌入时域特征中进行时频信息融合,以实现帕金森病语音检测。在公开帕金森病语音数据集和自采语音数据集上验证了方法的有效性。

关键词：帕金森病梅尔频率倒谱系数 S-vectors Conformer 时频特征融合

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面向DAG任务的分布式智能计算卸载和服务缓存联合优化

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中山大学学报（自然科学版）（中英文） 2025年第1期64卷 71-82页

作者：李云南子煜姚枝秀夏士超鲜永菊重庆邮电大学通信与信息工程学院重庆400065 重庆邮电大学软件工程学院重庆400065

建立了一种有向无环图(DAG,directed acyclic graph)任务卸载和资源优化问题,旨在应用最大可容忍时延等约束实现系统能耗最小化。考虑到网络中计算请求高度动态、完整的系统状态信息难以获取等因素,最后使用多智能体深度确定性策略梯度(... 详细信息

建立了一种有向无环图(DAG,directed acyclic graph)任务卸载和资源优化问题,旨在应用最大可容忍时延等约束实现系统能耗最小化。考虑到网络中计算请求高度动态、完整的系统状态信息难以获取等因素,最后使用多智能体深度确定性策略梯度(MADDPG,multi-agent deep deterministic policy gradient)算法来探寻最优的策略。相比于现有的任务卸载算法,MADDPG算法能够降低14.2%至40.8%的系统平均能耗,并且本地缓存命中率提高3.7%至4.1%。

关键词：移动边缘计算多智能体深度强化学习计算卸载资源分配服务缓存