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Robot-assisted treatment of secondary epilepsy caused by parasitic infection:a case report

癫痫学报（英文） 2024年第2期7卷 143-150页

作者： Juan Luo Xin Chen Sixun Yu haifeng shu Department of Neurosurgery Affiliated Hospital of Southwest Medical UniversityLuzhou Sichuan 646000China Department of Neurosurgery General Hospital of the Western Theater Command of the PLAChengdu Sichuan 610083China Department of Neurosurgery General Hospital of the Western Theater Command of the PLAChengdu Sichuan 610083China

Background Cerebral sparganosis represents the most severe manifestation of sparganosis,with a relatively low global *** cases of secondary epileptic seizures caused by sparganosis infection in the functional areas of the brain,what advanced neurosurgical techniques should be employed to precisely identify and excise the epi-leptic lesions in the deep functional areas of the brain,aiming to achieve maximal removal while minimising the risk of neurological deficits?This remains a current challenge for epilepsy surgeons.Case presentation A 24-year-old Chinese male was admitted to our hospital,presenting with a history of left limb twitching persisting for over a *** main clinical symptoms presented twitching and numbness of his left limb without loss of *** the premise of inappropriate anti-seizure treatment,recurrent epilepsy attacked *** patient's diagnosis was considered as"space-occupying lesions in the several lobes of brain,secondary epilepsy"after comprehensive assessment and *** experts considered that the patient's space-occupying lesions in the right frontal and parietal lobes were highly suspected to be infected by *** report delved into the application of neurosurgery robot-assisted frameless stereotaxic technology and intraopera-tive stereotactic electroencephalography(SEEG)monitoring technology to accurately locate and optimize removal of parasite-related epileptic lesions situated in functional areas of the *** a result,the patient had achieved seizure freedom,leaving no symptoms of neurological deficit.Conclusions With the highly integrated development of imaging technology,mechanical technology,computer control technology,and artificial intelligence,surgical robots are poised to play a larger role across various neurosur-gical specialties in the *** benefits for patients and the promising application of this technology,its utilization holds significant value.

关键词： Cerebral sparganosis Secondary epilepsy Robot Frameless stereotaxic technology

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四元超宽带高隔离MIMO槽天线的设计

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压电与声光 2024年第1期46卷 103-107页

作者：舒海峰杜成珠杨福慧上海电力大学电子与信息工程学院上海200082 中电科微波通信(上海)有限公司上海201800

提出了一款基于FR4的共面波导(CPW)馈电四元超宽带(UWB)高隔离MIMO天线。该天线由4个单元槽天线组成,天线尺寸为65 mm×65 mm×0.8 mm。通过采用缺陷地结构和切角的方式实现了天线的超宽带特性。单元天线相互垂直放置实现了极化分集,同... 详细信息

提出了一款基于FR4的共面波导(CPW)馈电四元超宽带(UWB)高隔离MIMO天线。该天线由4个单元槽天线组成,天线尺寸为65 mm×65 mm×0.8 mm。通过采用缺陷地结构和切角的方式实现了天线的超宽带特性。单元天线相互垂直放置实现了极化分集,同时在天线中间加载隔离栏栅结构,增加了天线的隔离度。对天线进行加工测试,测试结果能覆盖2.86~11.1 GHz并在频段内隔离度大于20 dB,天线具有高隔离、超宽带和较低的包络相关系数(ECC<0.006)的特点。天线采用(CPW)的馈电形式,更易应用于集成电路中,适用于各种超宽带系统。

关键词：槽天线超宽带多输入多输出(MIMO) 高隔离度

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神经动力学时变网络分析在癫痫诊治的评价作用

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中国微侵袭神经外科杂志 2024年第6期28卷 331-339页

作者：罗娟陈欣余思逊树海峰西南医科大学附属医院神经外科四川泸州646000 西部战区总医院神经外科四川成都610083

目的探讨基于神经动力学的时变网络分析方法在难治性癫痫(refractory epilepsy,RE)患者的术前评估及预后判断的作用。方法回顾性分析18例RE病例资料,研究同步化和非同步化的立体定向脑电图(stereotactic electroencephalogra‐phy,SEEG... 详细信息

目的探讨基于神经动力学的时变网络分析方法在难治性癫痫(refractory epilepsy,RE)患者的术前评估及预后判断的作用。方法回顾性分析18例RE病例资料,研究同步化和非同步化的立体定向脑电图(stereotactic electroencephalogra‐phy,SEEG)数据;18例RE患者接受术前多模态评估后均行射频热凝治疗。结果SEEG同步化与非同步化指标呈现相反趋势。同步化与非同步化的受试者工作特征(receiver operating characteristic,ROC)曲线以及曲线下面积(area under the curve,AUC)结果提示:从癫痫发作前进入到癫痫发作状态时,随着致痫区同侧同步性增加,非同步性会相对减弱;随着致痫区同侧同步性减弱,非同步性会增加。随访3~18个月,经过射频热凝治疗的RE患者,随着致痫区同侧的非同步化活动增强,同步化活动减弱,预后会更好;随着致痫区同侧的同步化活动增强,非同步化活动减弱,预后会变差。结论根据神经动力学时变网络分析方法得到致痫区同步化和非同步化活动强弱变化,以此确定射频热凝靶点,能极大程度改善患者预后。

关键词：癫痫,难治性立体定向脑电图时变网络分析同步化

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缺血性脑卒中患者康复训练决策辅助工具的构建

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实用临床医药杂志 2024年第8期28卷 119-122页

作者：杨娟蒋玲俐王爱华树海峰陈娟王永华成都医学院护理学院四川成都610083 中国人民解放军西部战区总医院神经外科四川成都610083 中国人民解放军西部战区总医院重症医学科四川成都610083 中国人民解放军西部战区总医院护理部四川成都610083

目的构建缺血性脑卒中康复训练决策辅助工具,为患者决策提供结构化指导与支持。方法基于文献回顾和半结构式访谈,初步拟定缺血性脑卒中康复训练决策辅助工具,采用德尔菲专家函询法对15名专家进行2轮专家函询。结果2轮专家函询的问卷回... 详细信息

目的构建缺血性脑卒中康复训练决策辅助工具,为患者决策提供结构化指导与支持。方法基于文献回顾和半结构式访谈,初步拟定缺血性脑卒中康复训练决策辅助工具,采用德尔菲专家函询法对15名专家进行2轮专家函询。结果2轮专家函询的问卷回收率及有效率均为100%,表明专家的积极性高;2轮函询的专家权威系数分别为0.88、0.89,表明专家的权威程度高;2轮专家函询的肯德尔协调系数分别为0.298、0.398(P<0.001),表明专家意见的一致性较高;最终形成的缺血性脑卒中康复训练决策辅助工具包括4项一级指标、9项二级指标和25项三级指标。结论本研究构建的缺血性脑卒中康复训练决策辅助工具兼具科学性和实用性,有助于改善患者的决策质量。

关键词：脑卒中脑梗死康复共享决策决策辅助工具德尔菲法

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高超声速风洞多天平测力试验技术研究

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实验流体力学 2014年第4期28卷 49-53页

作者：舒海峰许晓斌孙鹏中国空气动力研究与发展中心四川绵阳621000

在同一次试验中通过安装多台天平测量多个部件气动力,可以更加详细地了解飞行器的气动特性,并可以降低试验成本、提高试验效率。多天平测力技术在亚跨超声速风洞中应用已经非常成熟。但是,在高超声速风洞中,由于模型尺寸小、来流温度高... 详细信息

在同一次试验中通过安装多台天平测量多个部件气动力,可以更加详细地了解飞行器的气动特性,并可以降低试验成本、提高试验效率。多天平测力技术在亚跨超声速风洞中应用已经非常成熟。但是,在高超声速风洞中,由于模型尺寸小、来流温度高,多天平的布局比较困难,所以目前国内在高超声速风洞中进行的多天平测力试验相对较少。为满足型号研制的需要,在CARDC超高速所的Φ1m高超声速风洞上开展了多天平测力试验技术研究。选取某飞行器的3个控制舵为研究对象。针对试验模型径向尺寸小,而轴向尺寸相对较大的特点,确定采用铰链力矩天平轴线与测量舵转轴互相垂直的"纵轴式"布局方式;采用合理的小型化六分量天平结构形式,升降舵天平测量元件的长、宽、高尺寸为20mm×20mm×25mm;为更加真实地模拟天平的工作状态,设计了专用的加载头,并采用单元加载和组合加载相结合的方法进行校准,校准结果表明,天平主要分量的静校准度均在0.7%以内;在采取温度补偿措施之后,零点漂移明显减小;采用了天平-舵偏角变换装置一体化设计,有效提高了定位和安装精度。在Φ1m高超声速风洞上开展的Ma=5条件下的风洞试验结果表明,采用的多天平测力试验技术是可行的,可以应用到高超声速风洞测力试验中。

关键词：高超声速风洞铰链力矩天平方向舵升降舵气动力测量

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高超声速风洞铰链力矩试验技术研究进展

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实验流体力学 2022年第5期36卷 57-68页

作者：向立光舒海峰许晓斌中国空气动力研究与发展中心超高速空气动力研究所绵阳621000

针对高超声速风洞铰链力矩试验比低速和高速风洞铰链力矩试验模型尺寸更小、温度效应和缝隙窜流影响更大,试验难度更大的特点,“十一五”以来,在中国空气动力研究与发展中心超高速空气动力研究所的Ф1 m高超声速风洞上开展了高超声速铰... 详细信息

针对高超声速风洞铰链力矩试验比低速和高速风洞铰链力矩试验模型尺寸更小、温度效应和缝隙窜流影响更大,试验难度更大的特点,“十一五”以来,在中国空气动力研究与发展中心超高速空气动力研究所的Ф1 m高超声速风洞上开展了高超声速铰链力矩试验技术研究工作。先后发展了基于纵轴式、横轴式以及其他布局方式的天平及其试验装置设计技术,探索了适用于高超声速风洞试验条件的减小天平温度效应的措施、舵偏角变换方式和天平校准方法,并开展了多轮验证试验。试验结果表明:发展的铰链力矩试验方法、试验装置、天平结构、舵偏角变换方式和天平校准方法等能够满足不同高超声速飞行器控制舵面气动力测量的需求;采取的天平两端加装隔热套和电桥桥路补偿等措施能够有效减小天平温度效应和缝隙窜流的影响。目前,本项试验技术已成功应用于Ф1 m高超声速风洞马赫数4~8(来流总温273~740 K)的舵面气动特性测量,铰链力矩重复性精度优于1.50%。

关键词：高超声速风洞铰链力矩天平温度效应试验装置布局试验技术

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Concise extraction and characterization of the pore-throat network in unconventional hydrocarbon reservoirs: A new perspective

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Petroleum Science 2024年第3期21卷 1474-1487页

作者： shu-Heng Du Yong-Min Shi State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of SciencesBeijing100190China School of Engineering Science University of Chinese Academy of SciencesBeijing100049China School of Earth and Space Sciences Peking UniversityBeijing100871China

In this study,a new image-based method for the extraction and characterization of pore-throat network for unconventional hydrocarbon storage and exploitation is proposed.“Pore-throat solidity”,which is analogous to particle solidity,and a new method for automatic identification of pores and throats in tight sandstone oil reservoirs are ***,the“pore-throat combination”and“pure pore”are defined and distinguished by drawing the cumulative probability curve of the pore-throat solidity and by selecting an appropriate cutoff *** the discrete grid set is recognized as a pore-throat combination,Legendre ellipse fitting and minimum Feret diameter are *** the pore and throat grid sets are identified as pure pores,the pore diameter can be directly *** the new method,the analytical results for the physical parameters and pore radius agree well with most prior *** results comparing the maximum ball and the new model could also prove the accuracy of the latter's in micro and nano *** new model provides a more practical theoretical basis and a new calculation method for the rapid and accurate evaluation of the complex processes of oil migration.

关键词： Hydrocarbon exploitation Pore Throat Porous media Identification

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Cu-substituted nickel hexacyanoferrate with tunable reaction potentials for superior ammonium ion storage

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Journal of Materials Science & Technology 2024年第2期169卷 19-27页

作者： Leiyu Fan Guangchang shu Yiwen Liu Haoxiang Yu Lei Yan Liyuan Zhang Jie shu School of Materials Science and Chemical Engineering Ningbo UniversityNingbo 315211China

In this work,a variety of Cu_(x)Ni_(2-x)Fe(CN)_(6)(x=0,0.4,0.8,1.2,1.6,2)cathodes for ammonium ion batteries are prepared and their electrochemical performances are *** the introduction of copper in nickel hexacyanoferrate,the electrochemical performance varies without changing the structure of nickel *** increase of Cu content in nickel hexacyanoferrate leads to the enhancement of reaction potential and *** results suggest that the substitution of Cu for Ni has a positive effect on improving the cycling stability and rate capacity of nickel hexacyanoferrate when x in Cu_(x)Ni_(2-x)Fe(CN)_(6)is less than ***,Cu_(0.4)Ni_(1.6)Fe(CN)_(6)exhibits the best cycling per-formance(capacity retention of 97.54%at 0.3 C)and the highest rate capacity(41.4 mAh g^(-1)at 10 C)in Cu_(x)Ni_(2-x)Fe(CN)_(6).Additionally,the X-ray diffraction(XRD)and X-ray photoelectron spectroscopy(XPS)tests also reveal that the structural evolution of Cu_(0.4)Ni_(1.6)Fe(CN)_(6)is highly reversible upon NH_(4)^(+)***,this work proposes a candidate material for ammoniumion batteries and offers a novel avenue for adjusting the operating potential of the material.

关键词： Nickel hexacyanoferrate Copper hexacyanoferrate NH_(4)^(+)storage Ammonium ion batteries Aqueous batteries

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Progress in preparation of AlN-reinforced magnesium matrix composites:A review

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China Foundry 2024年第1期21卷 1-10页

作者： Lu Chen shu-lin Lü Di-jia Zhao Wei Guo Jian-yu Li shu-sen Wu State Key Lab of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China

As a ceramic material,AlN has very good thermophysical and mechanical *** addition,AlN is an effective refining agent for Mg alloys because it has a lattice constant similar to that of ***,AlN is an ideal reinforcement for magnesium matrix composites(MMCs),and is attracting increasing *** review addresses the development of preparation technologies for AlN-reinforced Mg matrix *** mainstream preparation techniques include stir casting,melt infiltration,powder metallurgy,and in-situ *** addition,the advantages and disadvantages of these techniques are analyzed in depth,and it is pointed out that the next direction for the preparation of high-performance AlN-reinforced MMCs is less aluminization and multiple technologies integration.

关键词： AlN MMCs preparation thermophysical property mechanical property

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Geological modeling of coalbed methane reservoirs in the tectonically deformed coal seam group in the Dahebian block,western Guizhou,China

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Frontiers of Earth Science 2024年第1期18卷 44-67页

作者： Yong shu shuxun SANG Xiaozhi ZHOU Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process(Ministry of Education) China University of Mining and TechnologyXuzhou 221116China Carbon Neutrality Institute China University of Mining and TechnologyXuzhou 221008China School of Resources and Geosciences China University of Mining and TechnologyXuzhou 221116China Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization China University of Mining and TechnologyXuzhou 221008China

The widely spread Carboniferous-Permian coal seam group in southern China has great potential for coalbed methane resources,but the extensively developed tectonically deformed coal seriously restricts its *** the Dahebian block in western Guizhou as the study area,the geological model of coalbed methane reservoirs in the tectonically deformed coal seam group was established,and the spatial distribution pattern of model parameters was clarified by clustering algorithms and factor *** facies model suggests that the main coal body structures in Nos.1,4,and 7 coal seams are cataclastic coal and granulated coal,whereas the No.11 coal seam is dominated by granulated coal,which has larger thicknesses and spreads more *** in situ permeability of primary undeformed coal,cataclastic coal,granulated coal,and mylonitized coal reservoirs are 0.333 mD,0.931 mD,0.146 mD,and 0.099 mD,respectively,according to the production performance analysis *** property model constructed by facies-controlled modeling reveals that Nos.1,4,and 7 coal seams have a wider high-permeability area,but the gas content is lower;the high-permeability area in the No.11 coal seam is more limited,but the gas content is *** results of the self-organizing map neural network and K-means clustering indicate that the geological model can be divided into 6 clusters,the model parameter characteristics of the 6 clusters are summarized by data analysis in combination with 6 factors extracted by factor analysis,and the application of data analysis results in multi-layer coalbed methane co-development is *** study provides ideas for the geological modeling in the tectonically deformed coal seam group and its data analysis.

关键词： geological modeling tectonically deformed coal coal seam group clustering algorithm Dahebian block,western Guizhou

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