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China Ocean Engineering 2023年第5期37卷 849-862页

作者： RAN Ya-qing JIANG Sheng-chao GENG Bao-lei JIN Rui-jia Faculty of Vehicle Engineering and mechanics Dalian University of TechnologyDalian 116024China National Engineering Research Center for Port Hydraulic Construction Tianjin Research Institute for Water Transport EngineeringM.O.T.Tianjin 300456China

Fluid resonance within narrow gaps in multiple-box systems with sharp and round inlet configurations are investigated by using the potential flow and viscous fluid flow models in the OpenFOAm^(■)*** discrepancy between two numerical models can be observed for sharp inlet *** addition to the dramatical decrease of resonant amplitude in narrow gaps,some peak values at the higher resonant frequencies predicted by the potential flow model even disappear in the viscous fluid flow *** decreased normalized resonant amplitudes with the increase of incident wave amplitude can be observed for sharp inlet ***,the hydrodynamic behaviors of multiple-box system with round inlet configurations between potential flow and viscous fluid flow models are quite similar with each *** normalized resonant amplitudes are nearly independent of incident wave amplitudes for multiple-box systems with round inlet *** implies that the energy dissipation associated with fluid viscosity and flow rotation plays an important role in the gap resonance for sharp inlet configurations;while it is insignificant for round inlet configurations.

关键词： fluid resonance multiple boxes sharp edge round edge OpenFOAm

Diagnostic imaging advances in murine models of colitis

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World Journal of Gastroenterology 2016年第3期22卷 996-1007页

作者： markus Brückner Philipp Lenz marcus m mücke Faekah Gohar Peter Willeke Dirk Domagk Dominik Bettenworth Department of medicine B University Hospital of MünsterAlbert-Schweitzer-Campus 1D-48149 MünsterGermany Department of Paediatric Rheumatology and Immunology University Hospital of MünsterAlbert-Schweitzer-Campus 1D-48149 MünsterGermany Department of medicine D University Hospital of MünsterAlbert-Schweitzer-Campus 1D-48149 MünsterGermany Department of medicine I Josephs-Hospital WarendorfAcademic Teaching HospitalUniversity of MünsterAm Krankenhaus 2D-48231 WarendorfGermany

Inflammatory bowel diseases(IBD) such as Crohn's disease and ulcerative colitis are chronic-remittent inflammatory disorders of the gastrointestinal tract still evoking challenging clinical diagnostic and therapeutic situations. murine models of experimental colitis are a vital component of research into human IBD concerning questions of its complex pathogenesis or the evaluation of potential new drugs. To monitor the course of colitis, to the present day, classical parameters like histological tissue alterations or analysis of mucosal cytokine/chemokine expression often require euthanasia of animals. Recent advances mean revolutionary noninvasive imaging techniques for in vivo murine colitis diagnostics are increasingly available. These novel and emerging imaging techniques not only allow direct visualization of intestinal inflammation, but also enable molecular imaging and targeting of specific alterations of the inflamed murine mucosa. For the first time, in vivo imaging techniques allow for longitudinal examinations and evaluation of intra-individual therapeutic response. This review discusses the latest developments in the different fields of ultrasound, molecularly targeted contrast agent ultrasound, fluorescence endoscopy, confocal laser endomicroscopy as well as tomographic imaging with magnetic resonance imaging, computed tomography and fluorescence-mediated tomography,discussing their individual limitations and potential future diagnostic applications in the management of human patients with IBD.

关键词： confocal laser endomicroscopy contrastenhanced ultrasound Dextran Sodium Sulphate colitis experimental colitis fluorescence imaging endoscopy Imaging Inflammatory bowel disease Tomography

Effect of rGO Coating on Interconnected Co_3O_4 Nanosheets and Improved Supercapacitive Behavior of Co_3O_4/rGO/NF Architecture

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Nano-micro Letters 2017年第4期9卷 11-18页

作者： Tinghui Yao Xin Guo Shengchun Qin Fangyuan Xia Qun Li Yali Li Qiang Chen Junshuai Li Deyan He Key Laboratory of Special Function materials and Structure Design of the ministry of Education Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education and School of Physical Science and TechnologyLanzhou University Institute of Electromagnetics and Acoustics Department of Electronic Science and Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance Xiamen University

In this study, the effect of reduced graphene oxide(rGO) on interconnected Co_3O_4 nanosheets and the improved supercapacitive behaviors is reported. By optimizing the experimental parameters, we achieved a specific capacitance of ~1016.4 F g^(-1) for the Co_3O_4/rGO/NF(nickel foam) system at a current density of 1 A g^(-1). However, the Co_3O_4/NF structure without rGO only delivers a specific capacitance of ~520.0 F g^(-1)at the same current density. The stability test demonstrates that Co_3O_4/rGO/NF retains ~95.5% of the initial capacitance value even after 3000 charge–discharge cycles at a high current density of 7 A g^(-1). Further investigation reveals that capacitance improvement for the Co_3O_4/rGO/NF structure is mainly because of a higher specific surface area(~87.8 m^2g^(-1))and a more optimal mesoporous size(4–15 nm) compared to the corresponding values of 67.1 m^2g^(-1) and 6–25 nm,respectively, for the Co_3O_4/NF structure. rGO and the thinner Co_3O_4 nanosheets benefit from the strain relaxation during the charge and discharge processes, improving the cycling stability of Co_3O_4/rGO/NF.

关键词： Supercapacitors rGO Co3O4 nanosheets Strain relaxation

Controlled Phase Flip Gate and Its Application in Low-Q Cavities by Single-Photon Input-Output Process

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Communications in Theoretical Physics 2012年第8期58卷 225-228页

作者：王波陈琼杨万里寇谡鹏 Department of Physics Beijing Normal University Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of ministry of Education and Department of Physics Hunan Normal University State Key Laboratory of magnetic resonance and Atomic and molecular Physics Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences

By employing an auxiliary cavity, we investigate the possibility to implement the conditional phase flip (CPF) gate on two atoms confined in separate low-Q cavities by single-photon input-output process, based on the Faraday rotation. This indicates a universal quantum computing available with sophisticated cavity QED techniques. As examples, we carry out generation of cluster states of distant atomic qubits and accomplish a teleportation based on Bell-state measurement in low-Q cavities.

关键词：输出过程单光子旋转门输入 Q值谐振腔控制相应用

Precise multi-Class Classification of Brain Tumor via Optimization Based Relevance Vector machine

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Intelligent Automation & Soft Computing 2023年第4期36卷 1173-1188页

作者： S.Keerthi P.Santhi Department of Computer Science Engineering Dayananda Sagar College of EngineeringBangalore560078India Department of Computer Science Engineering M.Kumarasamy College of EngineeringKarurTamil Nadu639113India

The objective of this research is to examine the use of feature selection and classiﬁcation methods for distinguishing different types of brain *** brain tumor is characterized by an anomalous proliferation of brain cells that can either be benign or *** tumors are misdiagnosed due to the variabil-ity and complexity of lesions,which reduces the survival rate in ***-sis of brain tumors via computer vision algorithms is a challenging *** and classiﬁcation of brain tumors are currently one of the most essential surgical and pharmaceutical *** brain tumor identi-ﬁcation techniques require manual segmentation or handcrafted feature extraction that is error-prone and *** the proposed research work is mainly focused on medical image processing,which takes magnetic resonance Imaging(mRI)images as input and performs preprocessing,segmentation,fea-ture extraction,feature selection,similarity measurement,and classiﬁcation steps for identifying brain ***,the medianﬁlter is practically applied to the input image to reduce the *** graph-cut segmentation technique is used to segment the tumor *** texture feature is extracted from the output of the segmented *** extracted feature is selected by using the Ant Colony Opti-mization(ACO)algorithm to improve the performance of the classiﬁ*** prob-abilistic approach is used to solve computing *** Euclidean distance is used to calculate the degree of similarity for each extracted *** selected feature value is given to the Relevance Vector machine(RVm)which is a multi-class classiﬁcation ***,the tumor is classiﬁed as abnormal or *** experimental result reveals that the proposed RVm technique gives a better accuracy range of 98.87%when compared to the traditional Support Vector machine(SVm)technique.

关键词： Brain tumor segmentation classiﬁcation relevance vector machine(RVm) ant colony optimization(ACO)

Cross-sectional associations between cortical thiclmess and physical activity in older adults with spontaneous memory complaints:The mAPT Study

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Journal of Sport and Health Science 2023年第3期12卷 324-332页

作者： Jérémy Raffin Yves Rolland Clara Fischer Jean-Francois mangin Audrey Gabelle Bruno Vellas Philipe de Souto Barreto the mAPT/DSA Group Gérontopôle de Toulouse Institut du VieillissementCentre Hospitalo-Universitaire de ToulouseToulouse 31000France UniversitéPaul-Sabatier/Institut National de la Santéet de la Recherche médicale Unitémixte de Recherche 1027 Facultéde médecineUniversity of Toulouse ⅢToulouse 31000France Centre pour l'Acquisition et le Traitement des Images multicenter Neuroimaging Platform NeurospinUniversitéParis-SaclayGif sur Yvette 91191France memory Resources and Research Center Montpellier University HospitalMontpellier 34295France Institut National de la Santéet de la Recherche médicale Unité1061 i-site montpellier Universitéd'Excellence University of MontpellierMontpellier 34090France 不详

Background:Age-related changes in brain structure may constitute the starting point for cerebral function *** activity(PA)demonstrated favorable associations with total brain volume,but its relationship with cortical thickness(CT)remains *** investigated the cross-sectional associations between PA level and CT in community-dwelling people aged 70 years and ***:A total of 403 older adults aged 74.8±4.0 years(mean±SD)who underwent a baseline magnetic resonance imaging examination and who had data on PA and confounders were *** was assessed with a *** were categorized according to PA *** linear regressions were used to compare the brain CT(mm)of the inactive group(no PA at all)with 6 active groups(growing PA levels)in 34 regions of ***:Compared with inactive persons,people who achieved PA at a level of 1500-1999 metabolic equivalent task-min/week(i.e.,about6-7 h of brisk walking for exercise) and those who achieved it at 2000-2999 metabolic equivalent task-min/week(i.e.,8-11 h of brisk walking for exercise)had higher CT in the fusiform gyrus and the temporal ***,dose-response associations between PA and CT were found in the fusiform gyrus(B=0.011,SE=0.004,adj.p=0.035),the temporal pole(B=0.026,SE=0.009,adj.p=0.048),and the caudal middle frontal gyrus,the entorhinal,medial orbitofrontal,lateral occipital,and insular ***:This study demonstrates a positive association between PA level and CT in temporal areas such as the fusiform gyrus,a brain region often associated to Alzheimer’s disease in people aged 70 years and *** investigations focusing on PA type may help to fulfil remaining knowledge gaps in this field.

关键词： Alzheimer's disease Brain aging Cortical thickness Physical activity

Probing the kinetics in supramolecular chemistry and molecular assembly by microfluidic-NmR spectroscopy

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Science China Chemistry 2018年第11期61卷 1460-1464页

作者： Hongxun Fang Yibin Sun Xinchang Wang manvendra Sharma Zhong Chen Xiaoyu Cao marcel Utz Zhongqun Tian State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Collaborative Innovation Center of Chemistry for Energy Materials and Key Laboratory of Chemical Biology of Fujian Province Xiamen University Department of Electronic Science Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance Xiamen University School of Chemistry University of Southampton

microfluidic-NmR spectroscopy has been extended to study the kinetics in supramolecular chemistry and molecular *** of a multicomponent host-guest supramolecular system containing viologen derivatives, β-cyclodextrins and cucurbit[7]urils are studied by a PmmA based microfluidic chip combined with a dedicated transmission line probe for NmR *** combining microfluidic technology with NmR spectroscopy, the amount of material required for a full kinetic study could be minimized. This is crucial in supramolecular chemistry, which often involves highly sophisticated and synthetically costly building blocks. The small size of the microfluidic structure is crucial in bringing the time scale for kinetic monitoring down to seconds. At the same time, the transmission line NmR probe provides sufficient sensitivity to work at low(2 m m) concentrations.

关键词：超分子动力学光谱学化学探查汇编 NmR PmmA

Cerebral fractional amplitude of low-frequency fluctuations may predict headache intensity improvement following acupuncture treatment in migraine patients

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Journal of Traditional Chinese medicine 2020年第6期40卷 1041-1051页

作者： Li Zhengjie Zhou Jun Cheng Shirui Lan Lei Sun Ruirui Liu mailan Yang Jie Gao Yujie Guo Taipin Gong Qiyong Zeng Fang Liang Fanrong Acupuncture&Tuina School/The Third Teaching Hospital Chengdu University of Traditional Chinese MedicineChengdu 610000China Acupuncture&Tuina School Hunan University of Chinese MedicineChangsha 410000China Huaxi magnetic resonance Research Center West China Hospital of Sichuan UniversityChengdu 610000China

OBJECTIVE:To explore how baseline resting-state cerebral function predicts clinical outcomes of acupuncture treatment for ***:One hundred migraine patients and 46 healthy subjects were *** were randomized into the acupuncture,sham acupuncture,and waiting list ***-state functional magnetic resonance imaging data were collected at baseline and after 1 month of longitudinal acupuncture *** amplitude of low-frequency fluctuations(f ALFF)calculations were applied to explore the associations between baseline f ALFF and changes in clinical variables in the acupuncture treatment group and the waiting list ***:Compared with healthy subjects,migraine patients had lower f ALFF in the left rostral ventromedial medulla,right thalamus,left amygdala,and right angular *** analyses revealed that baseline f ALFF values in the left middle frontal gyrus,left superior temporal gyrus,and middle temporal gyrus were positively associated with headache intensity changes in the acupuncture treatment group,while baseline f ALFF values in the bilateral lingual gyrus and cuneus were negatively associated with headache intensity changes in this ***:The baseline f ALFF values of brain regions associated with cognitive pain modulation,but not migraine severity,may predict future headache intensity improvement levels in migraine patients receiving acupuncture treatment.

关键词： Acupuncture migraine disorders Treatment outcome magnetic resonance imaging

颈椎病和长时间脊髓压迫病人脑萎缩、白质损伤和功能适应性改变的mRI证据

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国际医学放射学杂志 2020年第2期 245-246页

作者： á.Bernabéu-Sanz J.V.mollá-Torró S.López-Celadal P.m.López E.Fernández-Jover 胡现宁 magnetic resonance Department Inscanner SL C/San Pedro Poveda

目的采用多种先进神经影像技术探讨颈椎病(CS)对脑的影响。方法纳入27例CS和24名年龄及性别匹配的健康对照者。采用改良的日本骨科协会评分系统

关键词：功能适应性 mRI 感觉运动皮质白质损伤颈椎病