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Intelligent monitoring method of cow ruminant behavior based on video analysis technology

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International Journal of Agricultural and Biological Engineering 2017年第5期10卷 194-202页

作者： Chen yujuan He Dongjian Fu Yinxi song Huaibo College of Mechanical and Electronic Engineering Northwest A&F UniversityYanglingShaanxi 712100China Ministry of Agriculture Key Laboratory for Agricultural Internet of Things YanglingShaanxi 712100China Department of Foreign Languages Northwest A&F UniversityYanglingShaanxi 712100China

To overcome the limitations of traditional dairy cow's rumination detection methods,a video-based analysis on the intelligent monitoring method of cow ruminant behavior was proposed in this *** Mean Shift algorithm was used to track the jaw motion of dairy cows *** centroid trajectory curve of the cow mouth motion was subsequently extracted from the *** this way,the monitoring of the ruminant behavior of dairy cows was *** verify the accuracy of the method,six videos,a total of 99'00",24000 frames were *** test results demonstrated that the success rate of this method was 92.03%,despite the interference of behaviors,such as raising or turning of the cow’s *** results demonstrate that this method,which monitors the ruminant behavior of dairy cows,is effective and feasible.

关键词： dairy cow rumination intelligent monitoring video analysis animal bahavior

“双固一通”温针灸治疗膝骨性关节炎疗效观察及对血清炎性因子表达的影响

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山东中医杂志 2020年第4期39卷 378-381页

作者：苏丹萍宋玉娟王雪冰刘剑黄维深圳市龙华区中心医院康复医学科广东深圳518110

目的:探讨"双固一通"温针灸治疗膝骨性关节炎(KOA)的临床疗效及作用机制。方法:选取KOA患者90例,随机分为观察组和对照组各45例,对照组口服双氯芬酸钠缓释片治疗,观察组给予"双固一通"温针灸法治疗,观察并比较两组患者治疗前后膝关节功... 详细信息

目的:探讨"双固一通"温针灸治疗膝骨性关节炎(KOA)的临床疗效及作用机制。方法:选取KOA患者90例,随机分为观察组和对照组各45例,对照组口服双氯芬酸钠缓释片治疗,观察组给予"双固一通"温针灸法治疗,观察并比较两组患者治疗前后膝关节功能、血清炎性因子水平,评定临床疗效。结果:治疗后观察组疼痛评分、关节僵硬评分、日常生活评分及总分均低于对照组(P<0.01);血清转化生长因子β(TGF-β)、胰岛素样生长因子-1(IGF-1)、成纤维细胞生长因子-2(FGF-2)水平均高于对照组(P<0.01),治疗愈显率高于对照组(P<0.05)。结论:"双固一通"温针灸法可有效改善KOA患者膝关节功能,抑制炎症反应,疗效显著。

关键词：温针灸膝骨性关节炎膝关节功能炎性因子关元穴足三里阳陵泉内膝眼犊鼻

Multilevel analysis of the central-peripheral-target organ pathway:contributing to recovery after peripheral nerve injury

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Neural Regeneration Research 2025年第10期20卷 2807-2822页

作者： Xizi song Ruixin Li Xiaolei Chu Qi Li Ruihua Li Qingwen Li Kai-Yu Tong Xiaosong Gu Dong Ming Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Haihe Laboratory of Brain-Machine Interface and Human-Machine Fusion TianjinChina Department of Rehabilitation Tianjin University Tianjin HospitalTianjinChina Department of Hand Microsurgery Tianjin University Tianjin HospitalTianjinChina School of Exercise and Health Tianjin University of SportTianjinChina Department of Biomedical Engineering the Chinese University of Hong KongHong Kong Special Administrative RegionChina

Peripheral nerve injury is a common neurological condition that often leads to severe functional limitations and *** on the pathogenesis of peripheral nerve injury has focused on pathological changes at individual injury sites,neglecting multilevel pathological analysis of the overall nervous system and target *** has led to restrictions on current therapeutic *** this paper,we first summarize the potential mechanisms of peripheral nerve injury from a holistic perspective,covering the central nervous system,peripheral nervous system,and target *** peripheral nerve injury,the cortical plasticity of the brain is altered due to damage to and regeneration of peripheral nerves;changes such as neuronal apoptosis and axonal demyelination occur in the spinal *** nerve will undergo axonal regeneration,activation of Schwann cells,inflammatory response,and vascular system regeneration at the injury *** damage to target organs can occur,including skeletal muscle atrophy and sensory receptor *** then provide a brief review of the research advances in therapeutic approaches to peripheral nerve *** main current treatments are conducted passively and include physical factor rehabilitation,pharmacological treatments,cell-based therapies,and physical ***,most treatments only partially address the problem and cannot complete the systematic recovery of the entire central nervous system-peripheral nervous system-target organ ***,we should further explore multilevel treatment options that produce effective,long-lasting results,perhaps requiring a combination of passive(traditional)and active(novel)treatment methods to stimulate rehabilitation at the central-peripheral-target organ levels to achieve better functional recovery.

关键词： central nervous system central peripheral target organ multilevel pathological analysis nerve regeneration peripheral nerve injury peripheral nervous system target organs therapeutic approach

MoS_(2)Lubricate‑Toughened MXene/ANF Composites for Multifunctional Electromagnetic Interference Shielding

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Nano-Micro Letters 2025年第2期17卷 358-371页

作者： Jiaen Wang Wei Ming Longfu Chen Tianliang song Moxi Yele Hao Zhang Long Yang Gegen Sarula Benliang Liang Luting Yan Guangsheng Wang School of Physical Science and Engineering Beijing Jiaotong UniversityBeijing 100044People’s Republic of China Key Laboratory of Bio‑Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

The design and fabrication of high toughness electromagnetic interference(EMI)shielding composite films with diminished reflection are an imperative task to solve electromagnetic pollution *** MXene/ANF(aramid nanofibers)–MoS_(2)composite films with nacre-like layered structure here are fabricated after the introduction of MoS_(2)into binary MXene/ANF composite *** introduction of MoS_(2)fulfills an impressive“kill three birds with one stone”improvement effect:lubrication toughening mechanical performance,reduction in secondary reflection pollution of electromagnetic wave,and improvement in the performance of photothermal *** the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 50:50),the strain to failure and tensile strength increase from 22.1±1.7%and 105.7±6.4 MPa and to 25.8±0.7%and 167.3±9.1 MPa,*** toughness elevates from 13.0±4.1 to 26.3±0.8 MJ m^(−3)(~102.3%)*** the reflection shielding effectiveness(SE_(R))of MXene/ANF(mass ratio of 50:50)decreases~10.8%.EMI shielding effectiveness(EMI SE)elevates to 41.0 dB(8.2–12.4 GHz);After the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 60:40),the strain to failure increases from 18.3±1.9%to 28.1±0.7%(~53.5%),the SE_(R)decreases~22.2%,and the corresponding EMI SE is 43.9 *** MoS_(2)also leads to a more efficient photothermal conversion performance(~45 to~55℃).Additionally,MXene/ANF–MoS_(2)composite films exhibit excellent electric heating performance,quick temperature elevation(15 s),excellent cycle stability(2,2.5,and 3 V),and long-term stability(2520 s).Combining with excellent mechanical performance with high MXene content,electric heating performance,and photothermal conversion performance,EMI shielding ternary MXene/ANF–MoS_(2)composite films could be applied in many industrial *** work broadens how to achieve a balance between mechanical properties and versatility of composites in the case of high-function fillers.

关键词： MXene-MoS_(2) Lubrication toughening EMI shielding Photothermal conversion Electric heating performance

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浅谈国家药品标准物质库的科学管理

中国药事 2011年第8期25卷 753-754,771页

作者：肖丽华马双成宋玉娟刘明理中国食品药品检定研究院北京100050

目的对国家药品标准物质库实行科学管理。方法从国家标准物质库的规划设计、库区间库位分配及信息化管理等方面对其进行科学管理。结果与结论国家药品标准物质库的科学管理对标准物质规范化管理工作具有重要意义。

关键词：国家药品标准物质库管理

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饱和土不排水计算理论与方法探究

岩土工程学报 2025年第1期47卷 1-29页

作者：宋二祥清华大学土木水利学院北京100084

饱和土不排水强度及变形计算是岩土工程中颇具难度的复杂课题,至今业内对其多方面的问题仍存争议。结合笔者多年的相关学习研究,对此课题进行了较系统深入的探究。首先讨论了饱和土不排水计算的总应力法与有效应力法及各自的局限,并从... 详细信息

饱和土不排水强度及变形计算是岩土工程中颇具难度的复杂课题,至今业内对其多方面的问题仍存争议。结合笔者多年的相关学习研究,对此课题进行了较系统深入的探究。首先讨论了饱和土不排水计算的总应力法与有效应力法及各自的局限,并从有限元基本方程阐述了孔隙水压的处理,指出不管采用何种方法均应注意区分两类孔隙水压和两种总应力,即“土水分算”。随后,审视了Skempton-Henkel超静水压计算公式对不同应力路径的计算准确性,将它与MC强度准则相结合构建了饱和土不排水强度模型,对等向固结与不等向固结下饱和土不排水强度特性进行了分析,可为实际工程计算中强度参数选取提供参考。建议实际不排水计算采用广义Tresca强度准则,针对采用MC强度准则按有效应力法进行不排水计算会有较大误差的问题,除指出应直接输入不排水强度外,还给出一种采用等代强度参数的处理方法。在上述讨论基础上,剖析了固结不排水强度指标(CU指标)的缺陷,指出仅当土中总应力路径与测定CU指标的试验中相同时,用此指标直接计算才能给出准确的结果,特别是对地基承载力问题直接用此指标计算会给出严重偏危险的结果。还对基坑工程中主动、被动土水压力采用CU指标并土水合算的问题进行了分析,建议了合理计算方法及相应公式;对发生不排水极限土压时的滑移面倾角这一业内多人深感困惑的问题也进行了探讨。最后,针对饱和地基承载力及短期沉降计算,剖析了业内现行方法的问题,在深入解读有关因素影响机理的基础上给出新的计算方法。所给承载力计算公式,可较准确统一计算排水和不排水条件下的承载力,能更好保证设计的安全经济;所给沉降计算新方法能较准确计算饱和地基的短期沉降,对地基的排水沉降也可望取得较好结果,值得进一步发展完善。

关键词：饱和黏性土不排水强度超静水压固结不排水强度指标地基承载力地基沉降

体外与非体外循环冠状动脉旁路移植术治疗冠心病的疗效对比及其对患者心功能的影响研究

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实用心脑肺血管病杂志 2022年第1期30卷 43-47页

作者：蔡馨宋宇娟蔡忠香肖莹程誌王志维武汉大学人民医院心血管外科湖北省武汉市430060

背景冠状动脉旁路移植术是临床治疗冠状动脉病变及心功能不全的有效术式,可在体外循环或非体循环下进行,而体外循环冠状动脉旁路移植术较易造成心肌缺血再灌注损伤、全身炎症反应,导致术后并发症发生风险增高;而非体外循环冠状动脉旁路... 详细信息

背景冠状动脉旁路移植术是临床治疗冠状动脉病变及心功能不全的有效术式,可在体外循环或非体循环下进行,而体外循环冠状动脉旁路移植术较易造成心肌缺血再灌注损伤、全身炎症反应,导致术后并发症发生风险增高;而非体外循环冠状动脉旁路移植术无需在心脏停搏的前提下进行。目的比较体外与非体外循环冠状动脉旁路移植术治疗冠心病的疗效及其对患者心功能的影响。方法回顾性选取武汉大学人民医院2017年10月至2019年10月收治的冠心病患者100例,按手术方式分为对照组46例和观察组54例。对照组患者采用体外循环冠状动脉旁路移植术治疗,观察组患者采用非体外循环冠状动脉旁路移植术治疗。比较两组患者手术时间、术中出血量、重症监护室入住时间、出院时间、植入支架支数、血管活性药物使用时间、住院费用及术前、术后1 d心功能指标[心脏指数(CI)、左心室做功指数(LVSWI)、右心室做功指数(RVSWI)]。随访1个月,比较两组患者并发症发生率。结果观察组手术时间、重症监护室入住时间、出院时间、血管活性药物使用时间短于对照组,术中出血量、住院费用少于对照组(P0.05);术后1 d观察组患者CI、LVSWI、RVSWI高于对照组(P<0.05)。两组患者术后1 d CI分别高于本组术前,LVSWI、RVSWI分别低于本组术前(P<0.05)。观察组患者并发症发生率低于对照组(P<0.05)。结论与体外循环下冠状动脉旁路移植术比较,非体外循环冠状动脉旁路移植术治疗冠心病可有效缩短治疗时间,减少术中出血量及住院费用,对患者心功能的影响较小,且安全性较高。

关键词：冠心病冠状动脉旁路移植术非体外循环体外循环心功能疗效比较研究

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Hydrogen sulfide reduces oxidative stress in Huntington's disease via Nrf2

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Neural Regeneration Research 2025年第6期20卷 1776-1788页

作者： Zige Jiang Dexiang Liu Tingting Li Chengcheng Gai Danqing Xin Yijing Zhao Yan song Yahong Cheng Tong Li Zhen Wang Department of Physiology School of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong ProvinceChina Department of Medical Psychology and Ethics School of Basic Medicine SciencesCheeloo College of MedicineShandong UniversityJinanShandong ProvinceChina Department of Neurosurgery Surgery Qingdao Municipal HospitalQingdaoShandong ProvinceChina

The pathophysiology of Huntington's disease involves high levels of the neurotoxin quinolinic acid. Quinolinic acid accumulation results in oxidative stress, which leads to neurotoxicity. However, the molecular and cellular mechanisms by which quinolinic acid contributes to Huntington's disease pathology remain unknown. In this study, we established in vitro and in vivo models of Huntington's disease by administering quinolinic acid to the PC12 neuronal cell line and the striatum of mice, respectively. We observed a decrease in the levels of hydrogen sulfide in both PC12 cells and mouse serum, which was accompanied by down-regulation of cystathionine β-synthase, an enzyme responsible for hydrogen sulfide production. However, treatment with NaHS(a hydrogen sulfide donor) increased hydrogen sulfide levels in the neurons and in mouse serum, as well as cystathionine β-synthase expression in the neurons and the mouse striatum, while also improving oxidative imbalance and mitochondrial dysfunction in PC12 cells and the mouse striatum. These beneficial effects correlated with upregulation of nuclear factor erythroid 2-related factor 2 expression. Finally, treatment with the nuclear factor erythroid 2-related factor 2inhibitor ML385 reversed the beneficial impact of exogenous hydrogen sulfide on quinolinic acid-induced oxidative stress. Taken together, our findings show that hydrogen sulfide reduces oxidative stress in Huntington's disease by activating nuclear factor erythroid 2-related factor 2,suggesting that hydrogen sulfide is a novel neuroprotective drug candidate for treating patients with Huntington's disease.

关键词： apoptosis cystathionine-β-synthase nuclear factor erythroid 2-related factor 2 Huntington's disease hydrogen sulfide mitochondrion neuroplasticity oxidative stress quinolinic acid reactive oxygen species

Low‑Temperature Fabrication of Stable Black‑Phase CsPbI_(3)Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

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Nano-Micro Letters 2025年第3期17卷 232-245页

作者： Yingjie Zhao Yicheng Sun Chaoxin Pei Xing Yin Xinyi Li Yi Hao Mengru Zhang Meng Yuan Jinglin Zhou Yu Chen Yanlin song College of Chemistry and Pingyuan Laboratory Zhengzhou UniversityZhengzhou 450001People’s Republic of China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Key Laboratory of Bio‑Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China

Flexible wearable optoelectronic devices fabricated fromorganic–inorganic hybrid perovskites significantly accelerate the developmentof portable energy,biomedicine,and sensing fields,but their poor thermal stabilityhinders further ***,all-inorganic perovskites possessexcellent thermal stability,but black-phase all-inorganic perovskite filmusually requires high-temperature annealing steps,which increases energy consumptionand is not conducive to the fabrication of flexible wearable *** this work,an unprecedented low-temperature fabrication of stable blackphaseCsPbI3perovskite films is demonstrated by the in situ hydrolysis reactionof diphenylphosphinic chloride *** released diphenyl phosphateand chloride ions during the hydrolysis reaction significantly lower the phasetransition temperature and effectively passivate the defects in the perovskitefilms,yielding high-performance photodetectors with a responsivity of 42.1 AW−1 and a detectivity of 1.3×10^(14)***,high-fidelity imageand photoplethysmography sensors are demonstrated based on the fabricated flexible wearable *** work provides a newperspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring