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Journal of Systems Science & Complexity 2017年第5期30卷 1061-1071页

作者： he yanyu GUO Jin Key Laboratory of Systems and Control Institute of Systems ScienceAcademy of Mathematics and Systems ScienceChinese Academy of Sciences School of Automation and Electrical Engineering University of Science and Technology Beijing

This paper investigates the FIR systems identification with quantized output observations and a large class of quantized inputs. The limit inferior of the regressors' frequencies of occurrences is employed to characterize the input's persistent excitation, under which the strong convergence and the convergence rate of the two-step estimation algorithm are given. As for the asymptotical efficiency,with a suitable selection of the weighting matrix in the algorithm, even though the limit of the product of the Cram′er-Rao(CR) lower bound and the data length does not exist as the data length goes to infinity, the estimates still can be asymptotically efficient in the sense of CR lower bound. A numerical example is given to demonstrate the effectiveness and the asymptotic efficiency of the algorithm.

关键词： Asymptotic efficiency FIR system identification quantized input quantized output observations

Effect of fence opening configurations on dune development

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Acta Oceanologica Sinica 2023年第7期42卷 185-193页

作者： Qingqian Ning Bailiang Li Changmao Zhou yanyu he Jianhui Liu West Anhui University Lu’an 237000China Xi’an Jiaotong-Liverpool University Suzhou 215123China Transportation Portand Waterway Bureau of Yangpu Economic Development ZoneHaikou 570203China Third Institute of Oceanography Ministry of Natural ResourcesXiamen 361005China

Fences have been widely used in coastal protection engineering for their low cost,simple deployment,and easy integration with *** effects of fence porosity and height on dune development have been investigated while not much attention has been paid to the effects of fence opening configurations,such as opening size and geometry,and porosity *** this study,we deployed eight fences with same height and similar porosity,but different opening configurations on a sandy beach in Pingtan,Fujian *** indicate that there is a similar two-dune-one-trough pattern for all fences at the beginning of dune development,and opening size,orientation,and geometry,and porosity distribution control the leeward dune peak *** with small openings and non-uniform porosity have high trapping efficiency,and upper denser porosity may be the optimal design as these fences have the highest trapping efficiency and *** conclusions from this study can provide guidance on practical fence design.

关键词： fence porosity dune development fence opening size fence opening geometry

Using video imagery to reconstruct the 3D intertidal terrain along a beach with multiple cusps

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Acta Oceanologica Sinica 2023年第7期42卷 1-9页

作者： Feng Cai Hang Yin Hongshuai Qi Jixiang Zheng Yuwu Jiang Zhubin Cao yanyu he Laboratory of Ocean and Coast Geology Third Institute of OceanographyMinistry of Natural ResourcesXiamen 361005China College of Ocean and Earth Sciences Xiamen UniversityXiamen 361104China College of Harbour Coastal and Offshore EngineeringHohai UniversityNanjing 210098China

A high-frequency,high-resolution shore-based video monitoring system(VMS)was installed on a macrotidal(tidal amplitude>4 m)beach with multiple cusps along the Quanzhou coast,***,we propose a video imagery-based method that is coupled with waterline and water level observations to reconstruct the terrain of the intertidal zone over one tidal ***,the beach cusp system(BCS)was precisely processed and embedded into the digital elevation model(DEM)to more effectively express the microrelief and detailed characteristics of the intertidal *** a field experiment conducted in January 2022,the reconstructed DEM was deemed *** DEM was verified by RTK-GPS and had an average vertical root mean square error along corresponding RTK-GPS-derived intertidal profiles and corresponding BCS points of 0.134 m and 0.065 m,*** results suggest that VMSs are an effective tool for investigating coastal geomorphic processes.

关键词： intertidal terrain beach cusp video monitoring system waterline method feature embedment

Variation in cross-shore wind speeds influenced by the morphology of nourished beach

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Acta Oceanologica Sinica 2023年第7期42卷 149-159页

作者： Xu Chen Jianhui Liu Feng Cai yanyu he Bailiang Li Hongshuai Qi Shaohua Zhao Gen Liu Third Institute of Oceanography Ministry of Natural ResourcesXiamen 361005China Key Laboratory of Marine Ecological Conservation and Restoration Ministry of Natural ResourcesXiamen 361005China Key Laboratory of Marine Ecology Protection and Restoration of Fujian Province Xiamen 361005China Department of health and Environmental Sciences Xi’an Jiaotong-Liverpool UniversitySuzhou 215123China

The cross-shore variation in wind speeds influenced by beach nourishment,especially the dramatic changes at the nourished berm,is important for understanding the aeolian sand transport processes that occur after beach nourishment,which will contribute to better beach nourishment project design on windy *** this paper,the influencing factors and potential mechanism of wind speed variation at the edge of a nourished berm were *** observations,together with the Duna model,were used to study the cross-shore wind speed distribution for different nourishment *** results show that the nourished berm elevation and beachface slope are the main factors controlling the increase in wind speed at the berm *** the upper beach slope is constant,the wind speed at the berm edge has a positive linear correlation with the berm *** the berm elevation remains constant,the wind speed at the berm edge is also proportional to the upper beach *** the coupling effects of nourished berm elevation and beachface slope,a model for predicting the wind speed amplification rate at the nourished berm edge was established,and the underlying coupling mechanism was illustrated.

关键词： beach nourishment nourished beach berm cross-shore wind speed Duna model wind speed amplification rate

Nourishment and disaster mitigation efficiency of feeding sand on the dry section of a dissipative beach

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Acta Oceanologica Sinica 2023年第7期42卷 138-148页

作者： Yazhuang Zhao Hongshuai Qi Shaohua Zhao Feng Cai Jianhui Liu Pu Xu Zheyu Xiao yanyu he Zhiyong Zhang Third Institute of Oceanography Ministry of Natural ResourcesXiamen 361005China College of Civil Engineering Fuzhou UniversityFuzhou 350108China Power China Huadong Engineering Corporation Limited Hangzhou 310014China College of Marine Geosciences Ocean University of ChinaQingdao 266100China

To explore the nourishment effect and disaster reduction efficiency of a fully dissipative dry beach under the impact of storms,this paper uses the measured topography and hydrodynamic data to establish a one-dimensional numerical model of the XBeach beach *** numerically modeling the change in the nourished profile for different dry beach widths under normal waves and storm conditions and the recovery process of the profile after the storm,the degree of response in dry beach nourishment for the fully dissipative beach is *** results show that under normal wave conditions,the response of the nourished dry beach is *** on the dry beach erodes heavily,and the shoreline moves landward over a long *** the increase in the width and size of the dry beach,the wave height at the bottom of the backshore profile decreases,the wave height attenuation rate increases continuously,and the wave elimination effect is *** the storm incident wave intensifies,the wave height attenuation rate of the nourished dry beach decreases,indicating that the smaller the storm intensity is,the more significant the wave reduction effect of the nourished dry beach *** the same time,different profile arrangements of nourished dry beaches suffer from different degrees of erosion under storm conditions,with significant changes in profile *** intensified storm action,the intensity of sediment erosion in the nourished dry beach increases,the nourishment is weakened,and the recovery effect of the profile after the storm is not *** results of the numerical modeling highlight that the dry beach nourishment method can resist storms to a certain extent,but the overall effect is relatively limited.

关键词： tropical storm numerical model XBeach nourishment of dry beach disaster mitigation efficiency

Minimally invasive interventional therapy for pain

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Journal of Interventional Medicine 2023年第2期6卷 64-68页

作者： Yingjie Hua Dan Wu Tian Gao Lu Liu yanyu he Yiming Ding Qiaoying Rao Qiaohong Wu Zhongwei Zhao Department of Pain Medicine The Fifth Affiliated Hospital of Wenzhou Medical UniversityLishuiZhejiang Province323000China Key Laboratory of Imaging Diagnosis and Minimally Invasive Intervention Research LishuiZhejiang Province323000China

Pain interventional therapy,known as the most promising medical technology in the 21st century,refers to clinical treatment technology based on neuroanatomy,neuroimaging,and nerve block technology to treat pain *** with traditional destructive surgery,interventional pain therapy is considered a better and more economical choice of *** recent years,a variety of minimally invasive pain interventional therapy techniques,such as neuroregulation,spinal cord electrical stimulation,intervertebral disc ablation,and intrasheath drug infusion systems,have provided effective solutions for the treatment of patients with post-herpetic neuralgia,complex regional pain syndrome,cervical/lumbar disc herniation,and refractory cancer pain.

关键词： Interventional therapy Nerve regulation Spinal cord stimulation Discogenic pain Intrathecal drug delivery system

Glucocorticoid receptor signaling in the brain and its involvement in cognitive function

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Neural Regeneration Research 2025年第9期20卷 2520-2537页

作者： Chonglin Su Taiqi Huang Meiyu Zhang yanyu Zhang Yan Zeng Xingxing Chen Brain Science and Advanced Technology Institute Hubei Province Key Laboratory of Occupational Hazard Identification and ControlSchool of MedicineWuhan University of Science and TechnologyWuhanHubei ProvinceChina

The hypothalamic-pituitary-adrenal axis regulates the secretion of glucoco rticoids in response to environmental *** the brain,a nuclear receptor transcription fa ctor,the glucocorticoid recepto r,is an important component of the hypothalamicpituitary-a d renal axis's negative feedback loop and plays a key role in regulating cognitive equilibrium and *** glucoco rticoid receptor influences cognitive processes,including glutamate neurotransmission,calcium signaling,and the activation of brain-derived neurotrophic factor-mediated pathways,through a combination of genomic and non-genomic *** interactions within the central nervous system can alter the expression and activity of the glucocorticoid receptor,there by affecting the hypothalamic-pituitary-a d renal axis and stress-related cognitive *** appropriate level of glucocorticoid receptor expression can improve cognitive function,while excessive glucocorticoid receptors or long-term exposure to glucoco rticoids may lead to cognitive *** with cognitive impairment-associated diseases,such as Alzheimer's disease,aging,depression,Parkinson's disease,Huntington's disease,stroke,and addiction,often present with dysregulation of the hypothalamic-pituitary-adrenal axis and glucocorticoid receptor *** review provides a comprehensive overview of the functions of the glucoco rticoid receptor in the hypothalamic-pituitary-a d renal axis and cognitive *** emphasizes that appropriate glucocorticoid receptor signaling fa cilitates learning and memory,while its dysregulation can lead to cognitive *** provides clues about how glucocorticoid receptor signaling can be targeted to ove rcome cognitive disability-related disorders.

关键词： brain-derived neurotrophic factor calcium signaling glucocorticoid receptor glucocorticoid glutamate transmission hypothalamic-pituitary-adrenal axis long-term potentiation neurocognitive disorders neuroplasticity stress

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成年牦牛心室壁微血管的形态特征

兽类学报 2008年第3期28卷 300-304页

作者：崔燕贺延玉王剑甘肃农业大学动物医学院兰州730070

用ABS血管铸型、扫描电镜观察法和血管炭素墨水灌注、组织切片法研究了成年牦牛心脏微血管的构筑特征,首次对各级微血管的管径和毛细血管的密度进行了测量,并对成年牦牛心室壁的微血管进行了分类。结果显示：成年牦牛心脏微动脉、毛细... 详细信息

用ABS血管铸型、扫描电镜观察法和血管炭素墨水灌注、组织切片法研究了成年牦牛心脏微血管的构筑特征,首次对各级微血管的管径和毛细血管的密度进行了测量,并对成年牦牛心室壁的微血管进行了分类。结果显示：成年牦牛心脏微动脉、毛细血管前微动脉和毛细血管的管径平均值分别为为78.50±10.23μm,16.24±2.27μm,6.57±2.28μm。其管径范围分别为12.5-100μm,12.50~19.99μm,6.25-12.50μm。成年牦牛心脏微动脉一般经3-4级分支才发出毛细血管,其第一、第二、第三和第四级分支的管径平均值分别为87.64±4.87μm,69.46±6.67μm,48.52±5.77μm,30.45±5.44μm。其范围分别为79.55-95μm,59.31~79.55μm,37.50~59.31μm,19.99~37.50μm。成年牦牛心肌层毛细血管的密度为2528±263根/mm^2,靠近心外膜处毛细血管的密度为1864±179根/mm^2,心内膜毛细血管的密度为1636±235根/mm^2。成年牦牛心脏微动脉铸型表面呈典型的＂树皮样＂结构,偶尔可见卵圆形的内皮细胞核压痕。成年牦牛心脏毛细血管前微动脉铸型形态呈锥状,铸型表面有环行缩窄。成年牦牛心脏的毛细血管铸型表面光滑,有环形缩窄,无内皮细胞核压痕。成年牦牛心肌层中毛细血管与心肌纤维平行,并形成＂H＂形或＂Y＂形的广泛吻合,而在靠近心内膜处毛细血管形态较为扭曲,毛细血管多形成平面或立体的吻合。成年牦牛心脏微静脉管径多在300μm以下,管腔扁且不规则,微静脉铸型呈＂树根＂样结构。

关键词：牦牛微动脉毛细血管前微动脉毛细血管微静脉

Retroperitoneoscopic renal pedicle lymphatic disconnection for the treatment of intractable chyluria(Report of 12 cases and literature review)

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Retroperitoneoscopic renal pedicle lymphatic disconnection f...

Multilocular cystic renal cell carcinoma:a series of 11 cases

第十五届全国泌尿外科学术会议

作者： Ye Liefu, Zhu Qingguo, Zhang Xu, Li Tao, Fu Changde, he yanyu Fujian Provincial Hospital 350001

Objective: To assess the technique and result of retroperitoneoscopic lymphatic disconnection for the treatment of patients with intractable chyluria. Method: Retroperitoneoscopic lymphatic disconnection was performed to treat 12 patients with intractable chyluria , the technique of laparoscopic management of chyluria consisted of nephrolympholysis, ureterolympholysis and hilar lymphatic vessels ligation.

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Multilocular cystic renal cell carcinoma:a series of 11 case...