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Porta Hepatis Tuberculous Lymphadenopathy: Clinical and Imaging Features of 10 Cases

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Infectious Microbes & Diseases 2024年第1期6卷 29-35页

作者： Wenjuan Hu Ming Hu Jiafeng Xia Shengyue Chen Xiaomeng Li Chengmin Sheng Wanru Guo Xuewen Feng Yanwan Shangguan Bin Lu yunzhen shi Junke Qiu Kaijin Xu State Key Laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesThe First Affiliated HospitalZhejiang University School of MedicineHangzhouChina Department of Cardiology the Second Affiliated Hospital of Dalian Medical UniversityDalianChina Department of Infectious Diseases Affiliated Dongyang Hospital of Wenzhou Medical UniversityDongyangChina Department of Tuberculosis Intensive Care Unit Hangzhou Red Cross HospitalHangzhouChina

Porta hepatis tuberculous lymphadenopathy(TL)is rare,and the clinical and imaging manifestations often mimic *** offer a bet-ter understanding of porta hepatis TL and thus improve its diagnosis and treatment,here,we retrospectively reviewed and analyzed 10 porta hepatis TL cases between May 2017 and November *** this study,porta hepatis TL occurred predominantly in women(70%),with a mean age of 43.1 years(range,16-70 years).Among the patients,60%were initially suspected of malignancy(metastatic lymphadenopathy and lymphoma).The clinical manifestations were nonspecific,such as fever and weight loss,without overt abdominal *** patients showed high concentrations of serum C-reactive protein,erythrocyte sedimentation rate,alkaline phosphatase,γ-glutamyl transpeptidase and carbohydrate antigen *** rim-like enhancement was a characteristic finding on contrast-enhanced CT for all the *** examination confirmed the diagnosis in 90%of patients with caseous granulo-matous inflammation and positive results of Xpert MTB/RIF,quantitative real-time PCR and/or metagenomic next-generation sequenc-ing *** patients underwent antituberculosis therapy with a median treatment duration of 13.5 months(range,1-43 months).They all showed satisfactory therapeutic responses with improved symptoms and resolution on imaging after *** examination by biopsy remains the primary diagnostic method.A combination of the characteristic epidemiologic,clinical,imaging fea-tures and lesion biopsy for histopathology are essential for the diagnosis and treatment of TL.

关键词： porta hepatis tuberculous lymphadenopathy misdiagnosis tumor mimicking

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脑膜脓毒性伊丽莎白金菌败血症一例

浙江大学学报（医学版） 2024年第1期53卷 126-130页

作者：吴丽华叶挺华潘新灵洪俐施云珍东阳市人民医院感染科浙江东阳322100 东阳市人民医院检验科浙江东阳322100 东阳市人民医院生物实验室浙江东阳322100

一例82岁男性患者因“发热1 d”就诊,主要表现为发热、反应迟钝,外周血超敏C反应蛋白、中性粒细胞百分比明显升高,急诊予头孢曲松静脉滴注抗感染等治疗,效果不佳。收入病房后予头孢哌酮钠舒巴坦钠抗感染治疗,期间血培养发现脑膜脓毒性... 详细信息

一例82岁男性患者因“发热1 d”就诊,主要表现为发热、反应迟钝,外周血超敏C反应蛋白、中性粒细胞百分比明显升高,急诊予头孢曲松静脉滴注抗感染等治疗,效果不佳。收入病房后予头孢哌酮钠舒巴坦钠抗感染治疗,期间血培养发现脑膜脓毒性伊丽莎白金菌,经16S rRNA测序结果确认为脑膜脓毒性伊丽莎白金菌。患者住院期间腰椎穿刺检查脑脊液压为80 mmH2O(1 mmH_(2)O=0.0098 kPa),脑脊液生化检查结果均正常。治疗11 d后血培养阴性,且外周血超敏C反应蛋白、中性粒细胞百分比下降,予以出院。出院后使用左氧氟沙星片继续口服治疗14 d,随访3个月,患者体温正常,无感染症状。

关键词：伊丽莎白菌属脑膜脓毒性伊丽莎白金菌败血症基因测序头孢哌酮舒巴坦左氧氟沙星病例报告

Anti-osteosarcoma trimodal synergistic therapy using NiFe-LDH and MXene nanocomposite for enhanced biocompatibility and efficacy

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1329-1344页

作者： Yani Xu Lan Yang Min Li Haozhou Shu Na Jia yunzhen Gao Rongying shi Xiaojia Yang Zhirong Zhang Ling Zhang Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry West China School of PharmacySichuan UniversityChengdu 610041China Med-X Center for Materials College of Polymer Science and EngineeringSichuan UniversityChengdu 610065China

Osteosarcoma is usually resistant to immunotherapy and,thus primarily relies on surgical resection and high-dosage ***,less invasive or toxic therapies such as photothermal therapy(PTT)and chemodynamic therapy(CDT)generally failed to show satisfactory *** multimodal therapies with proper safety profiles may provide better solutions for ***,a simple nanocomposite that synergistically combines CDT,PTT,and chemotherapy for osteosarcoma treatment was *** this composite,small 2D Ni Fe-LDH flakes were processed into 3D hollow nanospheres via template methods to encapsulate 5-Fluorouracil(5-FU)with high loading *** nanospheres were then adsorbed onto larger 2D Ti3C2MXene monolayers and finally shielded by bovine serum albumin(BSA)to form 5-FU@Ni Fe-LDH/Ti3C2/BSA nanoplatforms(5NiTiB).Both in vitro and in vivo data demonstrated that the 5-FU induced chemotherapy,Ni Fe-LDH driven chemodynamic effects,and MXene-based photothermal killing collectively exhibited a synergistic“all-in-one”anti-tumor effect.5NiTiB improved tumor suppression rate from<5%by 5-FU alone to~80.1%.This nanotherapeutic platform achieved higher therapeutic efficacy with a lower agent dose,thereby minimizing side ***,the composite is simple to produce,enabling the fine-tuning of dosages to suit different ***,the platform is versatile and efficient,with potential for further development.

关键词： Osteosarcoma NiFe-LDH MXene Chemodynamic therapy Photothermal therapy Chemotherapy 5-Fluorouracil Nanocomposite

适配光电子学空间电荷测量方法的弹光传感器设计与测试验证

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电工技术学报 2023年第3期38卷 587-598页

作者：高浩予任瀚文李庆民史昀祯程思闳新能源电力系统国家重点实验室(华北电力大学) 北京102206

为支撑复杂应力环境下新能源电力系统装备绝缘可靠设计与状态评估,该文提出一种具备高时空分辨潜力的光电子学空间电荷测量方法,并构建了光-电-机械电荷测量信号传变转换模型。模型分析指出,电荷受太赫兹脉冲电场扰动所产生的弹性波大... 详细信息

为支撑复杂应力环境下新能源电力系统装备绝缘可靠设计与状态评估,该文提出一种具备高时空分辨潜力的光电子学空间电荷测量方法,并构建了光-电-机械电荷测量信号传变转换模型。模型分析指出,电荷受太赫兹脉冲电场扰动所产生的弹性波大小与平衡探测器所检测光强差近似成正比。针对测量传感器部分,结合分子动力学模拟,提出以SU-8胶为基体、羟基化石墨烯为掺杂分子的传感器材料改性设计思路,并基于光刻工艺,完成了高可靠弹光传感器的研制。进一步,搭建椭偏传感探测系统对所研发传感器开展了测试验证。实验表明,平衡探测器输出电压与传统电声脉冲压电传感模块输出量级一致,均为mV量级。同时,所研发弹光传感器可实现kHz级重复弹性波与飞秒脉宽脉冲弹性波的追踪测量,相较于压电传感模块,测量波形光滑且无畸变,具备较高的测量可靠性,可应用于光学测量方法。

关键词：空间电荷光弹性效应椭圆偏振测量弹光传感器

Adaptive Space Expansion for Fast Motion Planning

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IEEE/CAA Journal of Automatica Sinica 2024年第6期11卷 1499-1514页

作者： Shenglei shi Jiankui Chen State Key Laboratory of Digital Manufacturing Equipment and Technology School of Mechanical Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

The sampling process is very inefficient for sam-pling-based motion planning algorithms that excess random sam-ples are generated in the planning *** this paper,we pro-pose an adaptive space expansion(ASE)approach which belongs to the informed sampling category to improve the sampling effi-ciency for quickly finding a feasible *** ASE method enlarges the search space gradually and restrains the sampling process in a sequence of small hyper-ellipsoid ring subsets to avoid exploring the unnecessary ***,for a con-structed small hyper-ellipsoid ring subset,if the algorithm cannot find a feasible path in it,then the subset is ***,the ASE method successively does space exploring and space expan-sion until the final path has been ***,we present a particular construction method of the hyper-ellipsoid ring that uniform random samples can be directly generated in *** last,we present a feasible motion planner BiASE and an asymptoti-cally optimal motion planner BiASE*using the bidirectional exploring method and the ASE *** demon-strate that the computation speed is much faster than that of the state-of-the-art *** source codes are available at https://***/shshlei/ompl.

关键词： Adaptive space expansion(ASE) hyper-ellipsoid ring informed sampling motion planning.

Quantization and Event-Triggered Policy Design for Encrypted Networked Control

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 946-955页

作者： Yongxia shi Ehsan Nekouei the Department of Electrical Engineering City University of Hong KongHong KongChina

This paper proposes a novel event-driven encrypted control framework for linear networked control systems(NCSs),which relies on two modified uniform quantization policies,the Paillier cryptosystem,and an event-triggered *** to the fact that only integers can work in the Pailler cryptosystem,both the real-valued control gain and system state need to be first quantized before *** is dramatically different from the existing quantized control methods,where only the quantization of a single value,e.g.,the control input or the system state,is *** handle this issue,static and dynamic quantization policies are presented,which achieve the desired integer conversions and guarantee asymptotic convergence of the quantized system state to the ***,the quantized system state is encrypted and sent to the controller when the triggering condition,specified by a state-based event-triggered strategy,is *** doing so,not only the security and confidentiality of data transmitted over the communication network are protected,but also the ciphertext expansion phenomenon can be ***,by tactfully designing the quantization sensitivities and triggering error,the proposed event-driven encrypted control framework ensures the asymptotic stability of the overall closedloop ***,a simulation example of the secure motion control for an inverted pendulum cart system is presented to evaluate the effectiveness of the theoretical results.

关键词： Cyber-security encrypted control event-triggered control(ETC) networked control systems(NCSs) semi-homomorphic encryption

No Reference Image Sharpness Assessment Based on Global Color Difference Variation

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Chinese Journal of Electronics 2024年第1期33卷 293-302页

作者： Chenyang shi Yandan LIN School of Artificial Intelligence Anhui Polytechnic University School of Mechanical Engineering Anhui Polytechnic University Department of Light Sources and Illuminating Engineering Fudan University Academy for Engineering & Technology Fudan University

Image quality assessment(IQA) model is designed to measure the image quality in consistent with subjective ratings by computational models. In this research, a valid no reference IQA(NR-IQA) model for color image sharpness assessment is proposed based on local color difference map in a color space. In the proposed model, the absolute color difference variation and relative color difference variation are combined to evaluate sharpness in YIQ color space(a color coordinate system for the development of the United States color television system). The difference between sharpest and blurriest spot of an image is represented by the absolute color difference variation, and relative color difference variation expresses the variation in the image content. Extensive experiments are performed on five publicly available benchmark synthetic blur databases and two real blur databases, and the results prove that the proposed model work better than the other state-of-the-art and latest NR-IQA models for the prediction accuracy on blurry images. Besides, the model maintains the lowest computational complexity.

关键词： Image quality TV Image color analysis Databases Computational modeling Color Predictive models

An uncertainty investigation for liner impedance eduction methods

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Chinese Journal of Aeronautics 2024年第3期37卷 49-59页

作者： Weihao shi Xiaodong JING School of Energy and Power Engineering Beihang UniversityBeijing 100191China

Impedance eduction methods have been developed for decades to meet the increasing need for high-quality impedance data in the design and optimization of acoustic *** this end,it is important to fully investigate the uncertainty problem,to which only limited attention has been devoted so *** paper considers the possibility of acoustically-induced structural vibration as a nonnegligible uncertainty or error source in impedance eduction *** the frequency moves away from the resonant frequency,with the increase in the value of cavity reactance,the acoustic particle velocity inside liner orifices possibly decreases to the extent comparable to the vibration velocity of liner facing ***,the acoustically-induced vibration,although generally being weak except at the inherent structural frequencies,may considerably affect the impedance eduction results near the anti-resonant frequency where the liner has poor *** demonstrate the effect of structural vibration,the vibration velocity of liner facing sheet is estimated from the experimentally educed admittance of the liner samples whose orifices are sealed with ***,a three-dimensional numerical model is set up,in which normal particle velocity is introduced over the solid portion of liner facing sheet to imitate structural vibration,rather than directly solving the acoustic-structural coupling *** shown by the results,the vibration of liner facing sheet,whose velocity is as small as estimated by the experiment,can result in anomalous deviation of the educed impedance from the impedance model near the anti-resonant *** trend that the anomalous deviation varies with frequency is numerically captured.

关键词： Impedance eduction Uncertainty analysis Acoustically-induced structural vibration Anti-resonant frequency Perforated liner

Families of Schmidt-number witnesses for high dimensional quantum states

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Communications in Theoretical Physics 2024年第8期76卷 46-53页

作者： Xian shi College of Information Science and Technology Beijing University of Chemical Technology

Higher dimensional entangled states demonstrate significant advantages in quantum information processing tasks. The Schmidt number is a quantity of the entanglement dimension of a bipartite state. Here we build families of k-positive maps from the symmetric information complete positive operator-valued measurements and mutually unbiased bases, and we also present the Schmidt number witnesses, correspondingly. At last, based on the witnesses obtained from mutually unbiased bases, we show the distance between a bipartite state and the set of states with a Schmidt number less than k.

关键词： entanglement witness mutually unbiased bases Schmidt number