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World Journal of Clinical Cases 2023年第27期11卷 6587-6591页

作者： Rui Yan Xin-Yu Lei Jun Li liang-liang jia Hai-Xiong Wang Department of Cardiology Shanxi Cardiovascular HospitalTaiyuan 030000Shanxi ProvinceChina The CT Room of the Imaging Department Shanxi Cardiovascular HospitalTaiyuan 030000Shanxi ProvinceChina

BACKGROUND Foreign bodies in the pulmonary circulation have been documented in the literature and are typically caused by interventional ***,reports of pulmonary artery foreign bodies during femoral vein puncture are rare,and there is no description of this complication from the guidewire surface flows into the pulmonary artery during a pulse ablation in a patient with atrial *** SUMMARY We described a case in which a linear foreign body suddenly appeared on fluoroscopy image during pulsed ablation of atrial *** angiography showed that the foreign body was currently lodged in the pulmonary artery but was hemodynamically *** then chose to use an interventional approach to remove the foreign body from the pulmonary *** foreign body was subsequently confirmed to be from the hydrophilic coating of the guidewire *** may be related to the difficulties encountered during the puncture of the femoral *** is a rare and serious complication of femoral vein ***,we reported this case in order to avoid a similar *** Mismatches between interventional devices from different manufacturers used for femoral venipuncture may result in pulmonary artery foreign bodies.

关键词： Femoral vein puncture Atrial fibrillation Guide wire Complication Pulmonary artery foreign body Case report

The CW-CO2 laser induced reaction of 1,1-difluoroethane with chlorine

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Acta Chimica Sinica(English Edition) 1988年第1期6卷 62-69页

作者： LI Fang-Lin SHI Ji-liang GU jia-liang BI Qi-Xiu jiaNG Xi-Kui Shanghai Institute of Organic Chemistry,Academia Sinica,Shanghai Shanghai Institute of Organic Chemistry Academia Sinica Shanghai

The CW-CO2 laser induced reaction of CF2HCH3（1）with Cl2 yields vinylidene fluoride（2）as the main product;other products are CH3CF2Cl（3）,CF2ClCH2Cl（4）,CF2=CHCl（5）,CF2=CCl2（6）and CF2 Cl2（7）.The yield dependence of 2 on the CF2HCH3/Cl2 ratio,the laser irradia-tion time,the laser power and the pressure of the gaseous reactants have been ***,the TEA-CO2 laser induced reaction of 1 with *** CW-CO2 laser induced reaction of 2 and 2with Cl2 have also been studied in order to gain more mechanistic insights for this complicated rea-ction ***,CF2ClCH3 but not *** the main precursor to ***,it has been found that the relatively strong double bond of CF2=CH2 can be broken by laser *** possibility of applying this laser methodology to the production of vinylidene fluoride has beendiscussed.

关键词： The CW-CO2 laser induced reaction of 1,1-difluoroethane with chlorine CO CW

Shao-ji Luo:a Brief Biography

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Frontiers of Engineering Management 2016年第4期3卷 414-415页

作者： Shi-qian Hu liang-liang jia School of Geosciences and Info-Physics Central South University

Shao-ji Luo Professor-Engineer Guangzhou Pumped Storage Power Generation Limited Company Professor Shao-ji Luo was born in Guangzhou County of Guangdong Province in December *** graduated in 1955 from Tsinghua University,where he majored in waterpower *** many years of hard work,he was elected as a member of the Chinese Academy of Engineering(CAE)in 1999.

关键词： Shao-ji Luo high

基于优化堆叠降噪自编码器的滚动轴承故障诊断

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吉林大学学报（工学版） 2022年第12期52卷 2827-2838页

作者：杜先君贾亮亮兰州理工大学电气工程与信息工程学院兰州730050 兰州理工大学甘肃省工业过程先进控制重点实验室兰州730050 兰州理工大学国家级电气与控制工程实验教学中心兰州730050

针对深度神经网络用于滚动轴承故障诊断时,网络隐含层层数、各隐含层节点数、稀疏系数以及输入数据置零比例等超参数会直接影响网络诊断性能的问题,提出了一种优化改进堆叠降噪自编码器(SDAE)的滚动轴承故障智能诊断方法。使用学生心理... 详细信息

针对深度神经网络用于滚动轴承故障诊断时,网络隐含层层数、各隐含层节点数、稀疏系数以及输入数据置零比例等超参数会直接影响网络诊断性能的问题,提出了一种优化改进堆叠降噪自编码器(SDAE)的滚动轴承故障智能诊断方法。使用学生心理优化算法(SPBO)对降噪自编码器(DAE)网络的超参数进行自适应选取来确定SDAE网络的最优结构和参数,据此提取具有更强表征力的故障状态特征表示,输入到soft-max分类器实现滚动轴承运行工况的精确诊断。使用3个开源数据集对所提网络的性能进行验证,实验结果表明,基于SPBO-SDAE网络的诊断方法在特征有效提取、诊断速度以及故障诊断准确率方面均优于支持向量机(SVM)、反向传播(BP)神经网络、径向基(RBF)神经网络、SDAE网络、SPBO优化后的深度置信网络(DBN)、遗传算法(GA)优化后的SDAE网络以及粒子群算法(PSO)优化后的SDAE网络。

关键词：故障诊断滚动轴承堆叠降噪自编码器超参优化特征提取

16.48% Efficient solution-processed CIGS solar cells with crystal growth and defects engineering enabled by Ag doping strategy

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Journal of Energy Chemistry 2025年第1期100卷 59-65页

作者： Mengyu Xu Shaocong Yan Ting liang jia jia Shengjie Yuan Dongxing Kou Zhengji Zhou Wenhui Zhou Yafang Qi Yuena Meng Litao Han Sixin Wu Key Laboratory for Special Functional Materials of MOE National & Local Joint Engineering Research Centre for High-efficiency Display and Lighting Technology School of Nanoscience and Materials Engineering Henan University

Solution-processed Cu（In,Ga）Se2（CIGS） solar cells suffer from serious carrier recombination and power conversion efficiency（PCE） loss because of the poor film properties and easy formation of ***, we propose Ag&Se co-selenization strategy to enhance the crystallization and passivate harmful defects of the CIGS films. The formation of Ag-Se phase during the selenization process enables the formation of large grains and suppresses the deep level defects. It is found that Ag doping can enlarge the depletion region width, lower the Urbach energy and prolong the carrier lifetime. As a result, a champion solution-processed CIGS solar cell presents a high efficiency of 16.48% with the highly improved opencircuit voltage（VOC） of 662 m V and fill factor（FF） of 75.8%. This work provides an efficient strategy to prepare high quality solution-processed CIGS films for high-performance CIGS solar cells.

关键词： Cell engineering

Analysis on Present Status of Underground Water Pollution in Shijiazhuang and Its Prevention Measures

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Journal of Groundwater Science and Engineering 2014年第1期2卷 44-48页

作者： Kang-qin HAN Ri-sheng DUAN liang-liang jia Yuan-yuan DUAN Min-ying FENG Hebei Institute of Hydrogeology and Engineering Geology Survey

The underground water testing over the years has found that the total dissolved solids, total hardness, chloride, nitrate(calculated in N) and many other factors in the underground water in Shijiazhuang exceed the limits specified in Sanitary Standard for Drinking Water GB 5749-2006 and are distributed in a point source pattern. Starting by introducing the hydrological and geologic characteristics of Shijiazhuang, this paper analyzes the chemical properties and pollution status of the underground water in the city and the effect of factors that exceed the standard on the human body. Based on the analysis, it further discusses the causes for pollution and cases of pollution treatment that absorbed tremendous manpower and resources in the past and thus resulted in huge economic losses to the state. The paper concludes that it is extremely important to make a serious commitment to the pollution control. Judging from the hydrological conditions, the southeast part shows stronger anti-pollution performance than the northwest under the natural state.

关键词： Underground water pollution Chemical properties Excessive factor

Effect of impaired glucose tolerance on cardiac dysfunction in a rat model of prediabetes

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Chinese Medical Journal 2011年第5期124卷 734-739页

作者： liang jia-liang FENG Zhi-kuan LIU Xiao-ying LIN Qiu-xiong FU Yong-heng SHAN Zhi-xin ZHU Jie-ning LIN Shu-guang YU Xi-yong Medical Research Center Guangdong General Hospital Guangdong Provincial Cardiovascular Institute Guangdong Institute of Clinical Pharmacology Guangdong Academy of Medical Sciences Guangzhou Guangdong 510080 China School of Pharmaceutical Sciences Southern Medical University Guangzhou Guangdong 510515 China

Background The effect of impaired glucose tolerance （IGT） on cardiac function during the chronic prediabetes state is complicated and plays an important role in clinical outcome. However, the molecular mechanisms are not fully understood. This study was designed to observe cardiac dysfunction in prediabetic rats with IGT and to determine whether glucose metabolic abnormalities, inflammation and apoptosis are linked to *** The IGT rat models were induced by streptozocin, and the heart functions were assessed by echocardiography. Myocardial glucose metabolism was analyzed by glycogen periodic acid-Schiff staining, and the pro-apoptotic effect of IGT was evaluated by TUNEL staining. Additionally, caspase-3 activation, macrophage migration inhibitory factor （MIF） and G-protein coupled receptor kinase 2 （GRK2） were detected by Western blotting in cardiac tissue *** Area-under-the-curve of blood glucose in rats injected with streptozotocin was higher than that in controls, increased by 16.28%, 38.60% and 38.61% at 2, 4 and 6 weeks respectively （F=15.370, P=0.003）. Abnormal cardiac functions and apoptotic cardiomyocytes were observed in the IGT rats, the ejection fraction （EF） being （68.594-6.62）% in IGT rats vs. （81.07±4.59）% in controls （t=4.020, P=0.002）. There was more glucose which was converted to glycogen in the myocardial tissues of IGT rats, especially in cardiac perivascular tissues. Compared to controls, the cleaved caspase-3, MIF and GRK2 were expressed at higher levels in the myocardial tissues of IGT *** IGT in the prediabetes period resulted in cardiac dysfunction linked to abnormal glycogen storage and apoptosis. Additionally, MIF and GRK2 may be involved in the pathogenesis of cardiac dysfunction in prediabetes and their regulation may contribute to the design of novel diagnostic and therapeutic strategies for those who have potential risks for diabetic cardiovascular complications.

关键词： cardiac dysfunction impaired glucose tolerance prediabetes apoptosis metabolism

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底泥覆盖对氮磷释放及休眠蓝藻复苏的影响

中国环境科学 2024年第11期44卷 6322-6331页

作者：杨诗幼唐炳然罗竣潇梁嘉良何强李宏重庆大学三峡库区生态环境教育部重点实验室重庆400045

构建了室内复苏实验体系,选用镧改性膨润土和粉煤灰基沸石为氮磷吸附材料,设置对照组、控氮组(粉煤灰基沸石覆盖)、控磷组(镧改性膨润土覆盖)、氮磷双控组(镧改性膨润土和粉煤灰基沸石混合覆盖),进行为期120d的培养实验,探究了材料覆盖... 详细信息

构建了室内复苏实验体系,选用镧改性膨润土和粉煤灰基沸石为氮磷吸附材料,设置对照组、控氮组(粉煤灰基沸石覆盖)、控磷组(镧改性膨润土覆盖)、氮磷双控组(镧改性膨润土和粉煤灰基沸石混合覆盖),进行为期120d的培养实验,探究了材料覆盖沉积物后对沉积物-水剖面氮磷去除的效果与机制,进而分析了其对沉积物中休眠蓝藻复苏的影响.结果表明:实验结束时,对照组表层沉积物(0~2cm)间隙水中磷酸盐和氨氮分别为0.732和0.044mg/L.与对照相比,控磷组磷酸盐被削减97.81%;控氮组氨氮被削减65.91%.表明控磷组和控氮组仅分别抑制了沉积物-水剖面中的磷酸盐和氨氮的释放.氮磷双控组同时抑制了沉积物中氮磷的释放,实验结束时上覆水中总磷和总氮较初始分别降低33.33%和57.18%.此外,材料覆盖提升了沉积物表层中参与反硝化作用微生物(如Thiobacillus,Sulfuricurvum)和硝酸盐还原反应微生物(如norank_f_Anaerolineaceae)的相对丰度,这有利于沉积物中氮的去除.实验结束时,对照组的叶绿素a含量为24.36μg/L,为控氮组、控磷组和氮磷双控组的16.13倍、6.07倍和32.48倍;同时控氮组、氮磷双控组蓝藻门浮游植物相对丰度较对照组降低12.24%和10.16%;硅藻门的相对丰度与对照组相比明显升高,分别是对照组的2.34倍和2.33倍,表明浮游植物多样性有所提高.研究结果表明氮磷双控可更有效地抑制休眠蓝藻复苏.

关键词：镧改性膨润土粉煤灰基沸石蓝藻复苏氮磷

Paracrine effect of CXCR4-overexpressing mesenchymal stem cells on ischemic heart injury

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Paracrine effect of CXCR4-overexpressing mesenchymal stem ce...

第十二届全国免疫学学术大会

作者： Zhu Ping Wu Shi,Zheng Li Ying,Lan Huang Wei Cai Wen,Feng liang jia-liang Paul Christian jiang Lin Wu Zhi,Chao Xu Mei-feng Wang Yi-gang Department of Cardiac Surgery Guangdong Cardiovascular InstituteGuangdong General HospitalGuangdong Academy of Medical Sciences

Objective:It has been reported that CXCR4-overexpressing mesenchymal stem cells(MSCCX4) can repair heart tissue post myocardial *** study aims to investigate the MSCCX4-derived paracrine cardio-protective signaling in the presence of myocardial ***:Mesenchymal stem cells(MSCs) were divided into 3 groups:MSC only,MSCCX4,and CXCR4 gene-specific siRNAtransduced *** stem cells were exposed to hypoxia,and then MSCs-conditioned culture medium was incubated with neonatal and adult cardiomyocytes,*** proliferation-regulating genes were assessed by real-time polymerase chain reaction(RT-PCR).In vitro:The number of cardiomyocytes undergoing DNA synthesis,cytokinesis,and mitosis was increased to a greater extent in MSCCX4 medium-treated group than control group,while this proproliferative effect was reduced in CXCR4 gene-specific siRNA-transduced MSC-treated ***,the maximal enhancement of vascular endothelial growth factor,cyclin 2,and transforming growth factor-beta2 was observed in hypoxia-exposed *** vivo:MSCs were labeled with enhanced green fluorescent protein(EGFP) and engrafted into injured myocardium in ***:The number of EGFP and CD31 positive cells in the MSCCX4 group was significantly increased than other 2 groups,associated with the reduced left ventricular(LV) fibrosis,the increased LV free wall thickness,the enhanced angiogenesis,and the improved contractile ***:CXCR4 overexpression can mobilize MSCs into ischemic area,whereby these cells can promoted angiogenesis and alleviate LV remodeling via paracrine signaling mechanism.

关键词： CXCR4 receptor myocardial infarction proliferation stem cells

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“双碳”视域下的“环境土壤学”教学改革

教育教学论坛 2024年第43期 9-12页

作者：李芸邑梁嘉良重庆大学环境与生态学院重庆400044

“双碳”目标自提出以来,就受到党和国家的高度重视,是加快我国生态文明建设和实现高质量发展的重要抓手。土壤是自然环境中碳捕集和封存的理想场所,然而目前环境专业的实践教学偏重土壤污染物的环境行为及其修复去除,对土壤固碳相关内... 详细信息

“双碳”目标自提出以来,就受到党和国家的高度重视,是加快我国生态文明建设和实现高质量发展的重要抓手。土壤是自然环境中碳捕集和封存的理想场所,然而目前环境专业的实践教学偏重土壤污染物的环境行为及其修复去除,对土壤固碳相关内容涉及较少。环境土壤学是涉及地学、化学、微生物学、环境工程的一门交叉学科,知识点零散,一些学生难以在知识点之间建立逻辑联系,并形成对课程的连贯理解。此外,“双碳”政策的出台意味着环境土壤学的前沿方向变化跨度大,对学生的自主学习和创新探索能力提出了更高的要求。基于以上问题,重塑教学内容,利用知识网络构建法和项目式学习法(project-based learning,PBL)改革教学过程,以期提高学生的自主探索和创新能力,培养顺应“双碳”时代的创新型人才。

关键词：环境土壤学教学改革 “双碳” 知识网络法 PBL