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World Journal of Clinical Cases 2021年第27期9卷 8142-8146页

作者： Wei-Yi Wang shan-hong Wan Yu-Lu Zheng Ling-Ming Zhou hong Zhang Li-Bin Jiang Department of Respiratory Medicine The First Affiliated Hospital of Zhejiang Chinese Medical UniversityHangzhou 310006Zhejiang ProvinceChina Department of Respiratory Medicine Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina Department of Respiratory Medicine The Third Affiliated Hospital of Zhejiang Chinese Medical UniversityHangzhou 310000Zhejiang ProvinceChina

BACKGROUND An immediate hypersensitive immune response to Aspergillus fumigatus antigens is one of the main characteristic features of allergic bronchopulmonary aspergillosis(ABPA).As ABPA is an allergic respiratory disease,immunoglobulin E and peripheral-blood eosinophilia have been used as diagnostic ***,eosinophilia in bronchoalveolar lavage fluid(BALF)has not been considered in the diagnostic criteria for *** SUMMARY We present a case of ABPA in which the eosinophil count in peripheral blood was not increased,whereas the eosinophil percentage in BALF reached 60%.After antifungal and hormone therapy,imaging revealed very good resolution of lung *** The value of the eosinophil count in BALF for the diagnosis of ABPA is worthy of the clinician's attention,especially when the patient’s clinical features lack specificity and the diagnostic parameters are negative.

关键词： Allergic bronchopulmonary aspergillosis Bronchoalveolar lavage fluid Eosinophilia Peripheral blood Diagnostic criteria Antifungal agent Case report

Promoted NH_(3)-SCR activity and hydrothermal stability of Cu-SSZ-50 catalyst synthesized by one-pot method

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Chinese Chemical Letters 2024年第3期35卷 135-139页

作者： Jinpeng Du Jingyi Wang Yulong shan Shichao Han Wenpo shan hong He Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control Ningbo Urban Environment Observation and Research StationInstitute of Urban EnvironmentChinese Academy of SciencesNingbo 315800China University of Chinese Academy of Sciences Beijing 100049China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Nitrogen oxide(NO_(x))is one of the most critical contaminants in the air,and the control of NO_(x)emission from diesel vehicles is very ***-based small-pore zeolites have already been applied for NO_(x)abatement on diesel *** the small-pore zeolites,Cu-SSZ-50 catalysts with good NH_(3)-SCR catalytic activity were believed to have potential for *** this study,a one-pot synthesis method for Cu-SSZ-50 catalysts was developed for the first time,using the co-templates of Cu-TEPA and 2,6-dimethyl-N-methylpyridinium *** this synthesis method,Cu-SSZ-50 with various Cu contents can be obtained by adjusting the amount of Cu-TEPA without the need for a further after-treatment *** addition of Cu-TEPA affected the framework atoms and Cu species,and a lower Si/Al ratio and more SCR active Cu species were *** synthesized catalyst with a Cu/Al ratio of 0.40 exhibited over 90%NO_(x)conversion between 200℃and 450℃for the selective catalytic reduction of NO_(x)with NH_(3)(NH_(3)-SCR).Meanwhile,over 80%NO_(x)conversion could be obtained from 250℃to 450℃after hydrothermal aging at 750℃for 16 *** addition,both L-H and E-R mechanisms were proven to exist for the one-pot-synthesized Cu-SSZ-50 by in situ DRIFTS *** simple synthesis procedure,excellent catalytic activity and hydrothermal stability brighten the prospects for the application of Cu-SSZ-50.

关键词： NH_(3)-SCR Cu-SSZ-50 One-pot synthesis Si/Al ratio Cu species distribution Reaction mechanism

Imbalanced rock burst assessment using variational autoencoder-enhanced gradient boosting algorithms and explainability

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Underground Space 2024年第4期17卷 226-245页

作者： shan Lin Zenglong Liang Miao Dong hongwei Guo hong Zheng Key Laboratory of Urban Security and Disaster Engineering Ministry of EducationBeijing University of TechnologyBeijing 100124China Department of Civil and Environmental Engineering The Hong Kong Polytechnic University(PolyU)Hung HomKowloon 999077Hong KongChina

We conducted a study to evaluate the potential and robustness of gradient boosting algorithms in rock burst assessment,established a variational autoencoder(VAE)to address the imbalance rock burst dataset,and proposed a multilevel explainable artificial intelligence(XAI)tailored for tree-based ensemble *** collected 537 data from real-world rock burst records and selected four critical features contributing to rock burst ***,we employed data visualization to gain insight into the data’s structure and performed correlation analysis to explore the data distribution and feature ***,we set up a VAE model to generate samples for the minority class due to the imbalanced class *** conjunction with the VAE,we compared and evaluated six state-of-theart ensemble models,including gradient boosting algorithms and the classical logistic regression model,for rock burst *** results indicated that gradient boosting algorithms outperformed the classical single models,and the VAE-classifier outperformed the original classifier,with the VAE-NGBoost model yielding the most favorable *** to other resampling methods combined with NGBoost for imbalanced datasets,such as synthetic minority oversampling technique(SMOTE),SMOTE-edited nearest neighbours(SMOTE-ENN),and SMOTE-tomek links(SMOTE-Tomek),the VAE-NGBoost model yielded the best ***,we developed a multilevel XAI model using feature sensitivity analysis,Tree Shapley Additive exPlanations(Tree SHAP),and Anchor to provide an in-depth exploration of the decision-making mechanics of VAE-NGBoost,further enhancing the accountability of treebased ensemble models in predicting rock burst occurrences.

关键词： Gradient boosting VAE Ensemble learning Explainable artificial intelligence(XAI) Rock burst

A Novel Ultrafine Ru-B Amorphous Alloy Catalyst for Glucose Hydrogenation to Sorbitol

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Chinese Chemical Letters 2002年第12期13卷 1221-1224页

作者： hong shan LUO Hai Bing GUO He Xing LI Ming Hui WANG Ye Ping XU Department of Chemistry Shanghai Normal UniversityShanghai 200234

An ultrafine Ru-B amorphous alloy catalyst was prepared by chemical reduction with KBH4 in aqueous solution, which exhibited perfect selectivity to sorbitol (~100%) and very high activity during the liquid phase glucose hydrogenation, much higher than the corresponding crystallized Ru-B, the pure Ru powder, and Raney Ni catalysts. The correlation of the catalytic activity to both the structural and surface electronic characteristics was discussed briefly.

关键词： Ru-B amorphous catalyst hydrogenation glucose sorbitol.

Temporary pacemaker protected transjugular intrahepatic portosystemic shunt in a patient with acute variceal bleeding and bradyarrhythmia:A case report

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World Journal of Clinical Cases 2021年第30期9卷 9192-9197页

作者： Xin Yao Shi-Hui Li Li-Rong Fu shan-hong Tang Jian-Ping Qin Department of Gastroenterology General Hospital of Western Theater CommandChengdu 610083Sichuan ProvinceChina

BACKGROUND Esophagogastric varices are a common complication of cirrhosis with portal hypertension and endoscopic treatment has been recognized as a primary preventive and therapeutic option for such patients;however,it should be noted that bradyarrhythmia is regarded as one of the contraindications to endoscopic ***,acute variceal bleeding may result in a high mortality rate in cirrhotic patients with portal hypertension accompanied by *** present,there is an absence of reports concerning the treatment of such group of patients who underwent transjugular intrahepatic portosystemic shunt(TIPS).The present report details the case of a cirrhotic patient with acute variceal bleeding accompanied by bradyarrhythmia who underwent TIPS under temporary pacemaker *** SUMMARY We report the case of a 64-year-old male patient who was confirmed with bradyarrhythmia by ambulatory electrocardiogram 24 h before the *** patient was successfully treated by TIPS under temporary pacemaker *** In terms of cirrhotic patients with abnormal cardiac electrophysiological conduction,TIPS may be effective in reducing the complications of portal hypertension following the exclusion of severe pulmonary hypertension and heart failure,showing moderate feasibility in clinical applications.

关键词： Transjugular intrahepatic portosystemic shunt Hypertension Cirrhotic Temporary pacemaker Bradyarrhythmia

抑郁症患者肝-脑功能区rfMRI影像学特征及与其相关性

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中国CT和MRI杂志 2024年第6期22卷 27-30页

作者：陈建单秀红黄海霞丁楷模赵蓓镇江市第五人民医院放射科江苏镇江212004 江苏大学附属人民医院放射科江苏镇江212002 镇江市第五人民医院普通精神科江苏镇江212004 镇江市第五人民医院临床心理科江苏镇江212004

目的探讨抑郁症患者肝-脑功能区静息态功能磁共振成像(rfMRI)影像学特征及与其相关性。方法将2022年11月-2023年7月医院精神科门诊确诊的40例抑郁症发作期患者依据病情严重程度分为轻中度组、重度组,采用rfMRI记录脑区影像学信息,比... 详细信息

目的探讨抑郁症患者肝-脑功能区静息态功能磁共振成像(rfMRI)影像学特征及与其相关性。方法将2022年11月-2023年7月医院精神科门诊确诊的40例抑郁症发作期患者依据病情严重程度分为轻中度组、重度组,采用rfMRI记录脑区影像学信息,比较轻中度组、重度组肝-脑功能区域的影像学特征。同期选取医院进行体检的20名健康志愿者作为对照,比较健康志愿者、抑郁症患者肝-脑功能区域的影像学特征,Pearson相关性分析法评估肝-脑功能区域异常影像学特征值与抑郁症的相关性。结果轻中度组左侧枕中回ReHo值较重度组降低,双侧楔前叶、中扣带回、杏仁核ReHo值较重度组升高,差异具有统计学意义(P<0.05)。健康志愿者左侧枕中回ReHo值较抑郁症患者降低,双侧楔前叶、中扣带回、杏仁核ReHo值较抑郁症患者升高,差异具有统计学意义(P<0.05)。Pearson相关性分析结果显示,肝-脑功能区域中左侧枕中回ReHo值与HAMD-24评分呈正相关(r=0.506,P<0.05),右侧楔前叶、左侧楔前叶、右侧中扣带回、左侧中扣带回、右侧杏仁核、左侧杏仁核ReHo值与HAMD-24评分呈负相关(r=-0.446、-0.452、-0.462、-0.481-、0.520、-0.531,P<0.05)。结论症患者肝-脑功能异常改变的区域分布于楔前叶、枕中回、中扣带回、杏仁核,且随着抑郁症患者病情进展,枕中回ReHo值逐渐升高,楔前叶、中扣带回、杏仁核ReHo值逐渐降低,枕中回、楔前叶、中扣带回、杏仁核区域异常与抑郁症病情具有一定相关性。

关键词：抑郁症肝-脑功能区静息态功能磁共振成像相关性

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乙醇体系中金属离子催化转化人参皂苷Rb1的研究

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化学试剂 2024年第4期46卷 88-93页

作者：曹波岩徐丝瑜李冠亨王宇鱼红闪大连工业大学生物工程学院辽宁大连116000

人参皂苷Rb1是人参中的主要皂苷之一,但人体吸收量极少,而其衍生物Rg3、Rk1、Rg5却易于人体吸收,但其制备和分离成本较高。针对以上问题将人参皂苷Rb1在50%乙醇水溶液体系和无水乙醇体系中进行催化条件的优化,并分析其产物。实验发现,... 详细信息

人参皂苷Rb1是人参中的主要皂苷之一,但人体吸收量极少,而其衍生物Rg3、Rk1、Rg5却易于人体吸收,但其制备和分离成本较高。针对以上问题将人参皂苷Rb1在50%乙醇水溶液体系和无水乙醇体系中进行催化条件的优化,并分析其产物。实验发现,通过对金属离子催化效果的筛选,选取NbCl_(5)为反应催化剂;在50%乙醇水溶液体系中最优条件下反应,Rg3得率为18.29%;在无水乙醇体系中最优条件下反应,Rg3得率为49.45%。根据两组反应产物的对比,推测在50%乙醇水溶液体系反应时,水可能供给电子基团,并生成更多水合化合物即20(S)-25-OH-Rg3和20(R)-25-OH-Rg3;在无水乙醇体系反应时,电子基团可能无法供给,形成双键,生成其他化合物即Rk1和Rg5。该发现为金属离子催化人参皂苷以制备稀有人参皂苷的方法奠定了理论基础。

关键词：氯化铌人参皂苷Rg3 人参皂苷Rb1 催化转化乙醇体系

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地磁活动对人类健康影响的研究进展

地球物理学进展 2024年第4期39卷 1390-1400页

作者：袁静续子茂罗浩江晨光韩冰傅斯杨李梦平洪珊刘铭刘彦良防灾科技学院廊坊065201 中国科学院地质与地球物理研究所北京100029 东南大学中大医院南京210009 中国地震局地质研究所北京100029

地磁活动是地球内外源磁场时空变化的总称,作为探索地球空间环境的重要媒介,一直是地球科学领域中的研究焦点.近年来,地磁活动对人类健康造成的影响引起了广泛的关注,也成为了一个新的研究热点.本文基于该领域的文献资料,系统地综述了... 详细信息

地磁活动是地球内外源磁场时空变化的总称,作为探索地球空间环境的重要媒介,一直是地球科学领域中的研究焦点.近年来,地磁活动对人类健康造成的影响引起了广泛的关注,也成为了一个新的研究热点.本文基于该领域的文献资料,系统地综述了地磁活动对人类健康的相关影响:首先总结了太阳活动引起的磁暴等地磁活动对心脑血管疾病、精神类疾病和其他生理状态(疾病)产生的负面影响,并对该影响的产生机理进行医学解释;其次从地磁活动与人类健康相关理论体系的建立、地磁活动事件的预测预警、地磁活动危害的防护措施等三个角度对其未来进行展望.为将来进一步深入探讨该领域的研究人员提供了可行性参考,具有现实意义.

关键词：地磁活动人类心脑血管疾病人类精神疾病人体生理状态

Patterns of change in the population and spatial distribution of oriental white storks (Ciconia boyciana) wintering in Poyang Lake

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Zoological Research 2016年第6期37卷 338-346页

作者： Zhen-Hua WEI Yan-Kuo LI Peng XU Fa-Wen QIAN Ji-hong shan Xiao-Bin TU College of Life Sciences Jiangxi Normal University Nanchang 330022 China Key Laboratory of Forestry Protection of State Forestry Administration Research Institute of Forest Ecology Environment and ProtectionChinese Academy of Forestry Beijing 100091 China Wildlife Service of Jiangxi Province Nanchang 330038 China

Using total counts in simultaneous annual surveys, we monitored the population size and spatial distribution of oriental white storks （Ciconia boyciana） wintering in Poyang Lake between 1998 and 2011. Results showed that Poyang Lake wetland is an important wintering ground for oriental white storks, with an annual average population number of 2 305＋326. The population sizes in 2004, 2005, 2010, and 2011 were higher than the highest-ever estimate of its global population. In 2005, we recorded 3 789 individuals, which was the maximum population number within the period of 1998-2011. The storks inhabited 52 lakes, with the greatest distance between these lakes being 180.3 km. The storks presented a clustered distribution pattern in the Poyang Lake wetland, irrespective of the number of individuals or occurrence frequencies. Shahu, Dahuchi, Banghu, and Hanchihu were most frequently used lakes and had the largest annual average numbers of storks. There was a significant positive correlation between occurrence frequency and annual average number of storks in the lakes. Most of the lakes important for storks were covered by existing nature reserves, though some lakes outside the reserves were also frequently used. About 64.9%＋ 5.5% of the storks were found in nature reserves. In addition, the storks more frequently used and clumped in significantly larger flocks in lakes within nature reserves than lakes outside.

关键词： Oriental white stork Poyang Lake Population size Spatial distribution

Effect of Cryogenic Treatment on Property of 14Cr2Mn2V High Chromium Cast Iron Subjected to Subcritical Treatment

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Journal of Iron and Steel Research International 2006年第6期13卷 43-48页

作者： LIU Hao-huai WANG Jun YANG hong-shan SHEN Bao-luo GAO She-ji HUANG Si-jiu Metal Material Department Siehuan University Chengdu 610064 Sichuan China Department ofMechanical Measurement National Institute of Measurement and Testing Technology Chengdu 610021Siehuan China Sijiu Rare Earth Alloy Foundry Chengdu 610211 Siehuan China

Effect of cryogenic treatment on the microstructure, hardening behavior and abrasion resistance of 14Cr2Mn2V high chromium cast iron （HCCI） subjected to subcritical treatment was investigated. The results show that cryogenic treatment after subcritical treatment can obviously improve the hardness and abrasion resistance of HCCI because abundant retained austenite is transformed into martensite and fine secondary carbides E（Fe, Cr）23 C6 ] precipitate. The amount of martensite and precipitated secondary carbide in HCCI experiencing subcritical treatment followed by cryogenic treatment was more than that experiencing the subcritical treatment followed by air cooling. When the abrasion resistance of HCCI reaches the maximum, its microstructure contains about 15 % retained austenite. Cryogenic treatment can further reduce the austenite content but the retained austenite cannot be transformed in to martensite completely.

关键词： high chromium cast iron cryogenic treatment subcritical treatment martensite transformation abrasion resistance