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Facile synthesis of hierarchical NiO/NiFe_(2)O_(4) microsphere composite as efficient visible photocatalyst for 2,4-DCP degradation

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Rare Metals 2024年第4期43卷 1580-1588页

作者： Shabana Shaheen Shuai Xu Ji Bian Amir Zada Zi-Qing Zhang Yang Qu Li-qiang jing Key Laboratory of Functional Inorganic Materials Chemistry(Ministry of Education) International Joint Research Center and Lab for Catalytic TechnologySchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin150080China Department of Chemistry Abdul Wali Khan UniversityMardan23200Pakistan

It is highly desired to develop efficient photocatalysts with recycling property for practical application to degrade toxic ***,nanosheet-assembled NiFe_(2)O_(4)microspheres with commendable activity are successfully synthesized by a facile solvothermal reaction with NH4F as the modifier,and their photoactivities are further improved by coupling with NiO through an in situ growth *** optimized nickel oxide(NiO)/nickel ferrite(NiFe_(2)O_(4))microsphere composite(5NiO/NFO-4)exhibits a satisfactory photocatalytic activity for 2,4-dichlorophenol(2,4-DCP)degradation under visible-light irradiation,which is attributed to its wide visible-light response,well-designed hierarchical structure and enhanced charge transfer and separation by coupling NiO as a high-level energy platform to accept ***,it is found that the NiO/NiFe_(2)O_(4)microsphere photocatalysts can be easily collected and recycled owing to the distinctive magnetic *** work provides a feasible route to rational design visible-light-driven photocatalysts with high-activity for environmental remediation and purification with good recyclability.

关键词： NiFe_(2)O_(4) microspheres NiO/Fe_(2)O_(4) composite Charge separation Visible-light photocatalysis 2 4-Dichlorophenol degradation

Comparative Analysis of ARIMA and LSTM Model-Based Anomaly Detection for Unannotated Structural Health Monitoring Data in an Immersed Tunnel

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Computer Modeling in Engineering & Sciences 2024年第5期139卷 1797-1827页

作者： Qing Ai Hao Tian Hui Wang Qing Lang Xingchun Huang Xinghong Jiang qiang jing School of Naval Architecture Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Key Laboratory of Road and Bridge Detection and Maintenance Technology of Zhejiang Province Hangzhou311305China Zhejiang Scientific Research Institute of Transport Hangzhou310023China State Key Laboratory of Coal Mine Dynamics and Control Chongqing UniversityChongqing400044China Hong Kong-Zhuhai-Macao Bridge Authority Zhuhai519060China

Structural Health Monitoring(SHM)systems have become a crucial tool for the operational management of long *** immersed tunnels exposed to both traffic loads and the effects of the marine environment,efficiently identifying abnormal conditions from the extensive unannotated SHM data presents a significant *** study proposed amodel-based approach for anomaly detection and conducted validation and comparative analysis of two distinct temporal predictive models using SHM data from a real immersed ***,a dynamic predictive model-based anomaly detectionmethod is proposed,which utilizes a rolling time window for modeling to achieve dynamic *** the assumption of temporal data similarity,an interval prediction value deviation was employed to determine the abnormality of the ***,dynamic predictive models were constructed based on the Autoregressive Integrated Moving Average(ARIMA)and Long Short-Term Memory(LSTM)*** hyperparameters of these models were optimized and selected using monitoring data from the immersed tunnel,yielding viable static and dynamic predictive ***,the models were applied within the same segment of SHM data,to validate the effectiveness of the anomaly detection approach based on dynamic predictive modeling.A detailed comparative analysis discusses the discrepancies in temporal anomaly detection between the ARIMA-and LSTM-based *** results demonstrated that the dynamic predictive modelbased anomaly detection approach was effective for dealing with unannotated SHM *** a comparison between ARIMA and LSTM,it was found that ARIMA demonstrated higher modeling efficiency,rendering it suitable for short-term *** contrast,the LSTM model exhibited greater capacity to capture long-term performance trends and enhanced early warning capabilities,thereby resulting in superior overall performance.

关键词： Anomaly detection dynamic predictive model structural health monitoring immersed tunnel LSTM ARIMA

Malvidin Mitigates Sepsis-induced Cardiac Injury by Modulating the TLR4-iNOS-COX-2 Inflammatory Pathway and the Bax/Bcl-2/Cyto-C Mitochondrial Apoptosis Pathway in a p38 MAPK-dependent Manner

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Biomedical and Environmental Sciences 2024年第2期37卷 221-227页

作者： ZHANG Wei YUAN Si Long qiang jing Chao HUANG He LI Da SUN Ying ZHANG Hong Gang Department of Vascular Surgery The First People’s Hospital of LianyungangLianyungang 222005JiangsuChina Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening College of PharmacyJiangsu Ocean UniversityLianyungang 222005JiangsuChina Jinzhou Medical University postgraduate training base(Lianyungang First People’s Hospital) Lianyungang 222005JiangsuChina

In critical care medicine,sepsis is a dangerous systemic condition that is highly prevalent and is associated with high morbidity and mortality rates^([1]).The high mortality rate associated with sepsis is closely related to multi-organ dysfunction,with heart injury being particularly critical and considered the starting point of multi-organ injury^([2]).

关键词： mortality Apoptosis TLR4

Clinical review and literature analysis of hepatic epithelioid angiomyolipoma in alcoholic cirrhosis: A case report

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World Journal of Clinical Cases 2024年第14期12卷 2382-2388页

作者： jing-qiang Guo Jia-Hui Zhou Kun Zhang Xin-Liang Lv Chao-Yong Tu Department of Hepatobiliary and Pancreatic Surgery Lishui Municipal Central HospitalLishui 323000Zhejiang ProvinceChina Department of Pathology Lishui Municipal Central HospitalLishui 323000Zhejiang ProvinceChina Department of General Surgery The Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina

BACKGROUND Hepatic epithelioid angiomyolipoma(HEA)has a low incidence and both clinical manifestations and imaging lack ***,it is easy to misdiagnose HEA as other tumors of the liver,especially in the presence of liver diseases such as hepatitis *** article reviewed the diagnosis and treatment of a patient with HEA and alcoholic cirrhosis,and analyzed the literature,in order to improve the understanding of this *** SUMMARY A 67-year-old male patient with a history of alcoholic cirrhosis was admitted due to the discovery of a space-occupying lesion in the *** on the patient’s history,laboratory examinations,and imaging examinations,a malignant liver tumor was considered and laparoscopic partial hepatectomy was *** pathology showed *** outpatient follow-up,the patient showed no sign of *** HEA is difficult to make a definite diagnosis before *** has the poten-tial for malignant *** conditions permit,surgical treatment is recom-mended.

关键词： Hepatic epithelioid angiomyolipoma Alcoholic cirrhosis Magnetic resonance imaging Computed tomography Immunohistochemistry Misdiagnose analysis Case report

Malignant myopericytoma originating from the colon: A case report

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1918-1925页

作者： Heng-Li Zhang Min Zhang jing-qiang Guo Fang-Nan Wu Jin-De Zhu Chao-Yong Tu Xin-Liang Lv Kun Zhang Department of General Surgery The Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina Department of Pathology The Fifth Affiliated Hospital of Wenzhou Medical UniversityLishui 323000Zhejiang ProvinceChina

BACKGROUND Myopericytoma is a benign tumor that typically occurs within subcutaneous tissue and most often involves the distal extremities,followed by the proximal extremities,neck,thoracic vertebrae and oral *** resection is often *** myopericytoma is extremely rare and has a poor ***,we report for the first time a case of malignant myopericytoma originating from the *** SUMMARY A 69-year-old male was admitted to our hospital with right upper quadrant pain for five *** suggested a liver mass with hemorrhage.A malignant hepatic tumor was the initial *** resection was performed after a complete preoperative work *** postoperative pathology suggested that the mass was a malignant myoblastoma unrelated to the *** months after the first surgery,an enhanced computed tomography(CT)scan revealed a recurrence of the *** diagnosis of malignant myopericytoma derived from the colon was confirmed on histopathological examination of the specimen from the second *** patient did not return to the hospital regularly for *** first postoperative abdominal CT examination six months after the second surgery demonstrated multiple liver *** time between the diagnosis of the tumor to death was approximately one *** Malignant myopericytoma is a rare *** diagnosis may be *** to a lack of treatment options,prognosis is poor.

关键词： Malignant myopericytoma Liver tumor Colonic neoplasms Abdominal pain

Influence of confined water on the limit support pressure of tunnel face in weakly water-rich strata

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Journal of Central South University 2024年第8期31卷 2844-2859页

作者： LI Yun-fa WU Guo-jun CHEN Wei-zhong YUAN jing-qiang HUO Meng-zhe State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan 430071China University of Chinese Academy of Sciences Beijing 100049China

In the process of shield tunneling through soft soil layers,the presence of confined water ahead poses a significant threat to the stability of the tunnel ***,it is crucial to consider the impact of confined water on the limit support pressure of the tunnel *** study employed the finite element method(FEM)to analyze the limit support pressure of shield tunnel face instability within a pressurized water-containing ***,a multiple linear regression approach was applied to derive a concise solution formula for the limit support pressure,incorporating various influencing *** analysis yields the following conclusions:1)The influence of confined water on the instability mode of the tunnel face in soft soil layers makes the displacement response of the strata not significant when the face is unstable;2)The limit support pressure increases approximately linearly with the pressure head,shield tunnel diameter,and tunnel burial *** inversely proportional to the thickness of the impermeable layer,soil cohesion and internal friction angle;3)Through an engineering case study analysis,the results align well with those obtained from traditional theoretical methods,thereby validating the rationality of the equations proposed in this ***,the proposed equations overcome the limitation of traditional theoretical approaches considering the influence of changes in impermeable layer *** can accurately depict the dynamic variation in the required limit support pressure to maintain the stability of the tunnel face during shield tunneling,thus better reflecting engineering reality.

关键词： weakly water-rich strata confined aquifer limit support pressure finite element method multiple linear regression

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虚拟化与密码技术应用:现状与未来

密码学报（中英文） 2024年第1期11卷 3-21页

作者：付裕林璟锵冯登国中国科学技术大学网络空间安全学院合肥230027 中国科学院软件研究所北京100190

虚拟化技术是一种典型的资源管控技术,将计算机系统的计算、存储等资源抽象成为隔离的运行环境,供多个独立运行的用户态程序或客户虚拟机使用.在虚拟化系统中,可进一步使用密码技术保护用户态程序或客户虚拟机的数据、代码等运行环境信... 详细信息

虚拟化技术是一种典型的资源管控技术,将计算机系统的计算、存储等资源抽象成为隔离的运行环境,供多个独立运行的用户态程序或客户虚拟机使用.在虚拟化系统中,可进一步使用密码技术保护用户态程序或客户虚拟机的数据、代码等运行环境信息,使其免受来自于恶意的程序、虚拟机、操作系统甚至Hypervisor的攻击威胁,实现更完善的安全保障.另一方面,由虚拟化技术构建的隔离运行环境,也能够用于密码系统的安全执行,为密码实现和应用提供额外的安全保障.本文系统地梳理了虚拟化与密码技术应用的结合研究:先从上述两个角度分别介绍了在原有常规计算机系统(使用不带专门硬件安全特性的CPU以及TPM芯片)的各种密码应用安全解决方案,总结了相应的特点和不足;然后,针对近年来出现的支持可信执行环境的计算机系统(使用带专门硬件安全特性的CPU,如Intel SGX、AMD SEV和ARM TrustZone等),介绍了其中的密码技术应用和密码系统构建,总结了现有研究的主要方向.最后,展望了虚拟化系统密码技术应用的未来研究发展方向.

关键词：虚拟化密码应用可信执行环境

基于熵值修正G2赋权的航空公司疲劳风险管理系统有效性评价

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科学技术与工程 2024年第10期24卷 4352-4358页

作者：李敬强刘林静刘安南中国民航大学安全科学与工程学院天津300300

为帮助航空公司持续优化疲劳风险管理系统(fatigue risk management system,FRMS),通过系统分析FRMS有效运行的关键要素,构建了疲劳风险管理系统有效性评价模型,以提高航空公司疲劳风险管理水平。在综合管理、政策文件、风险管理、安全... 详细信息

为帮助航空公司持续优化疲劳风险管理系统(fatigue risk management system,FRMS),通过系统分析FRMS有效运行的关键要素,构建了疲劳风险管理系统有效性评价模型,以提高航空公司疲劳风险管理水平。在综合管理、政策文件、风险管理、安全保证、安全促进5个维度的基础上,构建FRMS有效性评价指标体系,采用熵值修正G2法确定各指标的权重,并结合模糊综合评价法,构建了航空公司疲劳风险管理系统有效性评价模型。以S航空公司为例,运用模型对其进行有效性评价,该航空公司的FRMS有效性评价结果为良好,符合实际情况。结果表明,该评价模型具有较好的可行性和适用性,可为航空公司疲劳风险管理系统优化提供重要参考。

关键词：安全管理疲劳风险管理系统熵值修正G2法模糊综合评价法

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急诊科重症患者医院感染病原菌及其影响因素

中华医院感染学杂志 2024年第8期34卷 1260-1263页

作者：邹晶晶汤巧美吕珂郭敬强丽水市中心医院急诊监护室浙江丽水323000 丽水市中心医院肝胆胰外科浙江丽水323000

目的分析急诊科重症患者发生医院感染的现状、病原菌分布情况,并调查其高危因素。方法2019年6月-2022年9月丽水市中心医院急诊科重症患者198例纳入研究,回顾性收集患者临床资料,根据医院感染发生情况分别纳入医院感染组36例,无医院感染... 详细信息

目的分析急诊科重症患者发生医院感染的现状、病原菌分布情况,并调查其高危因素。方法2019年6月-2022年9月丽水市中心医院急诊科重症患者198例纳入研究,回顾性收集患者临床资料,根据医院感染发生情况分别纳入医院感染组36例,无医院感染组162例。分析急诊科重症患者医院感染现状,病原菌分布,通过单因素、多因素分析急诊科重症医院感染的高危因素。结果198例急诊科重症患者发生医院感染36例,发生率为18.18%,主要感染部位为患者下呼吸道、胃肠道、泌尿系统,占比分别为41.67%、19.44%、13.89%;36例急诊科重症医院感染患者共分离出病原菌42株,其中革兰阴性菌占比57.14%,革兰阳性菌占比30.95%,真菌占比11.90%;多因素Logistic分析结果显示,急诊手术、气管插管或气管切开为急诊科重症医院感染的风险因素(P<0.05),病房每天消毒次数≥2次为急诊科重症医院感染的保护因素(P<0.05)。结论急诊科重症患者发生医院感染率较高,主要感染部位为患者下呼吸道、胃肠道、泌尿系统,病原菌以革兰阴性菌为主,其发生与多种因素有关,临床可对高危患者进行针对性干预,进而预防急诊科重症医院感染的发生。

关键词：急诊重症医院感染感染部位病原菌危险因素