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Thin-walled and large-sized magnesium alloy die castings for passenger car cockpit:Application,materials,and manufacture

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China Foundry 2024年第5期21卷 525-545页

作者： Lei Zhan Yu-meng Sun Yang song Chun-hua Kong kai Ma Bai-xin Dong Hong-yu Yang Shi-li Shu Feng Qiu School of Automotive Engineering Jilin Communication PolytechnicChangchun 130012China Key Laboratory of Automobile Materials of Ministry of Education School of Materials Science and EngineeringNanling CampusJilin UniversityChangchun 130025China

In order to effectively reduce energy consumption and increase range mile,new energy vehicles represented by Tesla have greatly aroused the application of integrated magnesium(Mg)alloy die casting technology in ***,the application of Mg alloys in automobiles,especially in automotive cockpit components,is quite extensive,while it has almost disappeared for a period of time due to its relatively high cost,causing a certain degree of information loss in the application technology of Mg alloy parts in *** rapid development of automotive technology has led to a higher requirement for the automotive components compared with those traditional ***,whatever the components themselves,or the Mg alloy materials and die casting process have to face an increasing challenge,needing to be *** addition,owing to its high integration characteristics,the application of Mg alloy die casting technology in large-sized and thin-walled automotive parts has inherent advantages and needs to be expanded ***,it necessitates exploring advance Mg alloys and new product structures and optimizing die casting *** article summarizes and analyzes the development status of thin-walled and large-sized die casting Mg alloy parts in passenger car cockpit and corresponding material selection methods,die casting processes as well as mold design ***,this work will aid researchers in establishing a comprehensive understanding of the manufacture of thin-walled and large-sized die casting Mg alloy parts in automobile *** will also assist them in developing new Mg alloys with improved comprehensive performance and new processes to meet the high requirements for die casting automotive components.

关键词： Mg alloys thin wall large size automotive part die casting

基于Sentinel-3OLCI的查干湖水质参数定量反演

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中国环境科学 2023年第5期43卷 2450-2459页

作者：陈方方王强宋开山李思佳徐世琦杨倩中国科学院东北地理与农业生态研究所湿地生态与环境重点实验室吉林长春130102 东北师范大学植被生态科学教育部重点实验室吉林长春130024 吉林建筑大学测绘与勘查工程学院吉林长春130018

通过2020~2021年5次对查干湖实地采集87个水体样品,测定水质参数,并同步匹配经Acolite大气校正后的Sentinel-3OLCI(OLCI),结合412~885nm遥感反射率(Rrs)与支持向量机(SVM)算法､经验算法以及半分析算法构建查干湖悬浮物(TSM)､浊度(Turb)... 详细信息

通过2020~2021年5次对查干湖实地采集87个水体样品,测定水质参数,并同步匹配经Acolite大气校正后的Sentinel-3OLCI(OLCI),结合412~885nm遥感反射率(Rrs)与支持向量机(SVM)算法､经验算法以及半分析算法构建查干湖悬浮物(TSM)､浊度(Turb)､透明度(SDD)以及叶绿素(Chl-a)高精度反演模型,通过模型精度的对比,遴选出SVM模型并据此模型反演查干湖2017—2021年上述4种水质变化,分析其对降雨和风速的动态响应.结果表明:(1)实测TSM与Turb之间呈现显著正相关(P<0.01),相关系数为0.93;两者与SDD均呈现显著负相关(P<0.01),相关系数分别为0.71,0.73;(2)TSM、Turb、SDD、Chl-a反演模型决定系数分别为0.85,0.91,0.93,0.85;且误差分析RMSE值分别为8.75g/mL,10.95FNU,2.11cm,3.64μg/L;MAE值为5.99g/mL,6.86FNU,1.04cm,2.19μg/L;(3)查干湖水质参数年际分布特征呈动态下降趋势,于2020年TSM与Turb达到峰值;季节分布特征结果显示台风过境后(2020年9月),TSM与Turb浓度增加1.4倍;(4)风速对查干湖TSM､Turb呈现正相关,决定系数分别为0.79,0.45.通过长时间尺度上遥感监测查干湖水体的时空格局变化,分析其变化特征与规律,为区域水环境的生态保护与资源合理利用提出有效建议.

关键词：查干湖 Sentinel-3 透明度悬浮物浊度叶绿素

Targeting complement hyperactivation:a novel therapeutic approach for severe pneumonia induced by influenza virus/staphylococcus aureus coinfection

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Signal Transduction and Targeted Therapy 2024年第1期9卷 51-54页

作者： Leili Jia Haihua Luo Lizhong Li Mingyao Wang Jiangfeng Liu Yuan Liang shan Li Yong Jiang Juntao Yang Hongbin song Institute for Disease Control and Prevention of PLA BeijingChina Guangdong Provincial Key Laboratory of Proteomics State Key Laboratory of Organ Failure ResearchSchool of Basic Medical SciencesSouthern Medical UniversityGuangzhou 510515China State Key Laboratory of Common Mechanism Research for Major Diseases Institute of Basic Medical SciencesChinese Academy of Medical Science and Peking Union Medical College100005 BeijingChina

Dear Editor,Infections by the influenza virus are a significant and widespread global health threat,as these infections have an annual death toll ranging from 290,000 to 650,000.1 A significant proportion of these fatalities are attributed to secondary bacterial pneumonia,a severe complication commonly caused by ubiquitous respiratory pathogens such as Staphylococcus aureus(***).2 Of particular concern is the increased morbidity and mortality rates in individuals infected simultaneously with influenza virus and methicillin-resistant ***(MRSA).3 The concurrent presence of bacteria and influenza virus usually causes acute respiratory distress syndrome(ARDS),which is associated with acute lung injury(ALI),severe lung tissue edema,and widespread ***,determining the complex mechanisms underlying the synergistic interplay will require further investigation with a suitable coinfection mouse *** our previous study,we utilized different sequential coinfections at various time points to model influenza A virus and MRSA coinfection.

关键词： influenza pneumonia lung

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长春市南湖叶绿素a浓度高光谱估测模型研究

水科学进展 2006年第3期17卷 323-329页

作者：段洪涛张柏宋开山王宗明胥彦玲中国科学院东北地理与农业生态研究所西安理工大学环境科学研究所陕西西安710048

利用野外高光谱仪(ASD FieldSpec radiometer)在长春南湖进行了反射光谱测量和同步水质采样分析,通过研究水体藻类叶绿素a浓度与其高光谱反射特征之间的相关关系,采用单波段反射率、反射率比值法和一阶微分法分别建立了叶绿素a的高光谱... 详细信息

利用野外高光谱仪(ASD FieldSpec radiometer)在长春南湖进行了反射光谱测量和同步水质采样分析,通过研究水体藻类叶绿素a浓度与其高光谱反射特征之间的相关关系,采用单波段反射率、反射率比值法和一阶微分法分别建立了叶绿素a的高光谱定量模型。结果表明:三者与叶绿素a线性相关程度都比较高,决定系数在0.70左右,而且其显著水平P<0.01,都可以用于叶绿素a的定量遥感,其中单波段模型效果最好。为今后利用高光谱传感器在南湖进行叶绿素a浓度大面积遥感反演提供了研究基础。

关键词：叶绿素a 高光谱模型长春南湖遥感

近20年吉林中东部地区林地的时空变化及成因浅析

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资源科学 2005年第2期27卷 77-82页

作者：宋开山张柏段洪涛张树清中国科学院东北地理与农业生态研究所

在遥感(RS)与地理信息系统(GIS)技术的支撑下,以土地利用动态变化模型、景观模型对吉林省中东部山地丘陵区20年来林地面积的时空变化特征进行了定量或半定量的分析。结果表明:①1980年～1995年期间森林面积在减少,斑块数量增加,而相应... 详细信息

在遥感(RS)与地理信息系统(GIS)技术的支撑下,以土地利用动态变化模型、景观模型对吉林省中东部山地丘陵区20年来林地面积的时空变化特征进行了定量或半定量的分析。结果表明:①1980年～1995年期间森林面积在减少,斑块数量增加,而相应指标在1995年～2000年期间都呈现相反趋势;②该区的林地动态变化存在明显的区域差异,无论是从土地利用类型相对变化率模型还是从林地分布重心变化情况来看都表明:通化与吉林地区的森林面积变化较大,而白山、延边地区的变化较小。经数据分析与文献调研得知,大量的采伐与人口增长对耕地的需求是林地在1980年～1995年期间减少的直接原因;而国家相应林业政策的出台是1995年～2000年期间林地面积得以增加的直接原因。

关键词：东部地区林地面积增加出台森林面积中东区域差异动态变化采伐山地丘陵区

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基于多源信息空间的遥感影像自动解译研究

东北师大学报（自然科学版） 2006年第1期38卷 131-135页

作者：杨桄张柏王宗明宋开山中科院东北地理与农业生态研究所

通过分析遥感影像自动解译的研究现状和存在的问题,提出了基于多源信息空间的遥感影像自动解译的研究方法,将遥感影像分为光谱信息空间、形状信息空间、区域地学信息空间、干扰信息空间等四个信息空间,通过对多源信息空间的数学描述和... 详细信息

通过分析遥感影像自动解译的研究现状和存在的问题,提出了基于多源信息空间的遥感影像自动解译的研究方法,将遥感影像分为光谱信息空间、形状信息空间、区域地学信息空间、干扰信息空间等四个信息空间,通过对多源信息空间的数学描述和计算机处理实现了遥感影像的自动解译.

关键词：遥感影像目视解译多源信息空间自动解译

Comparison of ocular biometric parameters between two swept-source optical coherence tomography devices and Scheimpflug tomography in patients with cataract

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International Journal of Ophthalmology(English edition) 2024年第8期17卷 1437-1446页

作者： shan Ma Cheng Li Jing Sun Jun Yang kai Wen Xi-Teng Chen Fang-Yu Zhao Rong-Yu Gao Fang Tian Tianjin Key Laboratory of Retinal Functions and Diseases Tianjin Branch of National Clinical Research Center for Ocular DiseaseEye Institute and School of OptometryTianjin Medical University Eye HospitalTianjin 300380China Zhengda Guangming Eye Group Weifang 261000Shandong ProvinceChina Binzhou Polytechnic Binzhou 256603Shandong ProvinceChina

AIM:To assess and compare the variations and agreements across different ocular biometric parameters using swept-source optical coherence tomography(SS-OCT)and Scheimpflug tomography in patients diagnosed with ***:This prospective case series was conducted at Tianjin Medical University Eye *** total,212 eyes from 212 patients scheduled for phacoemulsification were *** were evaluated preoperatively using two SSOCT devices(IOLMaster700 and CASIA2)and Scheimpflug tomography(Pentacam).Central corneal thickness(CCT),anterior chamber depth(ACD),aqueous depth(AQD),white-to-white distance(WTW),flat simulated keratometry(Kf),steep simulated keratometry(Ks),mean keratometry(Km),and total corneal keratometry(TKm)were *** correlation coefficient(ICC),95%confidence intervals(CI)and limits of agreement(LoA)widths were conducted to assess differences and correlations between ***:All parameters,except for Ks,were significantly *** comparison revealed no significant differences between keratometry obtained by IOLMaster 700 and *** widths of all paired comparisons for Ks were>0.80 *** for WTW between IOLMaster 700 and CASIA2 and between CASIA2 and Pentacam,other Pearson’s coefficients between devices showed a strong correlation(all r>0.95).The ICC of WTW(ICC=0.438,95%CI 0.167-0.625)showed poor *** reliability of CCT,ACD,and AQD was excellent(all ICC>0.95),whereas that of TKm was good(ICC=0.827,95%CI 0.221-0.939).A significant linear correlation was also observed among ***:The ocular parameters derived from the use of IOLMaster700,CASIA2,and Pentacam exhibit significant discrepancies;as such,measurements from these devices should not be deemed as interchangeable.

关键词： ocular parameters swept-source optical coherence tomography cataract

Discussion on Traditional Chinese Medicine Treatment of Liver-Depression-Spleen-Deficiency Type Insomnia Based on the State-Target Theory and the Regulation of Microbiome-Gut-Brain Axis

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Journal of Clinical and Nursing Research 2024年第5期8卷 39-46页

作者： kai Wu Yongjie Gong shan Yang Yalan Yu First Clinical College Shaanxi University of Traditional Chinese MedicineXianyang 712000Shaanxi ProvinceChina Xi’an TCM Hospital of Encephalopathy Xi’an 710000Shaanxi ProvinceChina

Insomnia has become an urgent clinical problem in modern *** research has found that the gut flora-gut-brain axis plays an important role in regulating *** state-target theory is a product of the combination of traditional Chinese medicine and modern molecular biology *** paper clarifies the correlation between the state-target theory,the intestinal flora-gut-brain axis,and liver-depression-spleen-deficiency *** use of traditional Chinese medicine to regulate the structure and abundance of intestinal flora was also explored,aiming to integrate traditional Chinese medicine with Western medicine for the prevention and treatment of liver-depression-spleen-deficiency insomnia.

关键词： State-target theory Microbiome-gut-brain axis Liver-depression and spleen deficiency Insomnia Traditional Chinese medicine

A Case Report on Treating Progressive Supranuclear Palsy with a Combination of Chinese and Western Medicine

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Journal of Clinical and Nursing Research 2024年第5期8卷 23-29页

作者： kai Wu Yongjie Gong shan Yang Yalan Yu First Clinical College Shaanxi University of Chinese MedicineXianyang 712000Shaanxi ProvinceChina Xi’an TCM Hospital of Encephalopathy Xi’an 710000Shaanxi ProvinceChina

A case of progressive supranuclear palsy in a 66-year-old woman is *** patient complained of“progressive stiffness of both lower limbs for five years,accompanied by choking and coughing for more than 1 year,”and was diagnosed with paralysis in traditional Chinese medicine(TCM),which was characterized by a deficiency of liver and kidney,and phlegm and blood stasis blocking the *** medicine diagnosed it as progressive supranuclear *** patient was diagnosed with“Parkinson’s disease”several times in the past and was given“polybasic hydrazide”and“amantadine hydrochloride tablets,”*** patient did not have significant symptomatic relief,so she sought further treatment with a combination of traditional Chinese and Western *** on the concept of deficiency and excess,this disease is categorized as a paralytic disease in Chinese medicine,and the onset of the disease is closely related to the deficiency of the body after a long period of illness,with wind,phlegm,blood stasis,and deficiency as the main pathogenetic *** treatment is based on the combination of disease and evidence,with traditional Chinese medicine and acupuncture as the main treatments,supplemented by intermediate-frequency pulsed electrical stimulation,transcranial repetitive magnetic stimulation,medicated canisters,wax therapy,traditional Chinese medicine guasha,and acupoint *** medicine is based on symptomatic treatment,and the patient’s symptoms were relieved significantly after the combination of Chinese and Western medicine.

关键词： Progressive supranuclear palsy Paralytic disease Diagnosis and treatment Deficiency and excess Combination of Chinese and Western medicine