检索结果-南通市图书馆

computer-assisted three-dimensional individualized extreme liver resection for hepatoblastoma in proximity to the major liver vasculature

引用

World Journal of Gastrointestinal Surgery 2024年第4期16卷 1066-1077页

作者： wen-Li Xiu Jie Liu Jing-Li Zhang Jing-Miao Wang Xue-Feng Wang Fei-Fei Wang Jie Mi Xi-Wei Hao NanXia Qian Dong Department of Pediatric Surgery The Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina Department of Pediatric Surgery Yijishan Hospital of Wannan Medical CollegeWuhu 241000Anhui ProvinceChina Shandong Provincial Key Laboratory of Digital Medicine and computer-assisted Surgery Shandong College Collaborative Innovation Center of Digital Medicine Clinical Treatment and Nutrition HealthQingdao UniversityQingdao 266003Shandong ProvinceChina

BACKGROUND The management of hepatoblastoma(HB)becomes challenging when the tumor remains in close proximity to the major liver vasculature(PMV)even after a full course of neoadjuvant chemotherapy(NAC).In such cases,extreme liver resection can be considered a potential *** To explore whether computer-assisted three-dimensional individualized extreme liver resection is safe and feasible for children with HB who still have PMV after a full course of *** We retrospectively collected data from children with HB who underwent surgical resection at our center from June 2013 to June *** then analyzed the detailed clinical and three-dimensional characteristics of children with HB who still had PMV after a full course of *** Sixty-seven children diagnosed with HB underwent surgical *** age at diagnosis was 21.4±18.8 months,and 40 boys and 27 girls were ***-nine(88.1%)patients had a single tumor,39(58.2%)of which was located in the right lobe of the liver.A total of 47 patients(70.1%)had PRE-TEXT III or ***-nine patients(58.2%)underwent delayed *** a full course of NAC,16 patients still had close PMV(within 1 cm in two patients,touching in 11 patients,compressing in four patients,and showing tumor thrombus in three patients).There were 6 patients of tumors in the middle lobe of the liver,and four of those patients exhibited liver anatomy *** 16 children underwent extreme liver resection after comprehensive preoperative *** procedures were performed according to the preoperative plan,and the operations were successfully ***,the 3-year event-free survival of 67 children with HB is 88%.Among the 16 children who underwent extreme liver resection,three experienced recurrence,and one died due to multiple *** Extreme liver resection for HB that is still in close PMV after a full course of NAC is both safe and *** approach not only reduces th

关键词： Children Hepatoblastoma Surgery Three-dimensional computer-assisted

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

自动网格法程序的数值模拟测试

引用

湛江海洋大学学报 2003年第3期23卷 51-56页

作者：白义如王晓文白世伟湛江海洋大学工程学院广东湛江524088 中国科学技术大学力学与机械工程系安徽合肥230027 中国科学院武汉岩土力学研究所湖北武汉430071

为了测试改进后的程序,原始网格图和变形网格图皆由计算机生成。在生成变形网格图时,考虑了刚体移动、刚体转动、一般变形这三种变形,另外还生成一幅中间缺少网格点的大变形图像。结果表明:在不同的变形情况下,尤其在中间缺少网格点的... 详细信息

为了测试改进后的程序,原始网格图和变形网格图皆由计算机生成。在生成变形网格图时,考虑了刚体移动、刚体转动、一般变形这三种变形,另外还生成一幅中间缺少网格点的大变形图像。结果表明:在不同的变形情况下,尤其在中间缺少网格点的大变形下,虽然网格点分布不规则,但是程序仍然能够自动分割、编码,而且准确无误;呈二值化分布的网格点误差为0.0058像素以下,呈高斯分布的误差为0.00076像素以下。

关键词：自动网格法变形程序

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

对称群S_6的一个新刻画

引用

武汉大学学报（自然科学版） 1999年第3期45卷 271-275页

作者：黄本文武汉大学数学与计算机科学学院/软件工程国家重点实验室武汉430072

利用电子计算机计算，获得了对称群Ｓ６的下列重要性质：１）Ｓ６共有７５个２阶子群，可分为３个共轭类；２）Ｓ６有４０个３阶子群，可分为２个共轭类；３）Ｓ６有２５５个４阶子群，可分为７

关键词：对称群子群计算机程序

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

离散时延双神经元网络的渐近稳定性

引用

计算机科学 2003年第12期30卷 113-115页

作者：李绍文李绍荣廖晓峰西南财经大学数学系电子科技大学光电信息学院成都610054 重庆大学计算机学院重庆400030

1引言神经网络是复杂且大规模的非线性动力学系统,而引入时延则神经网络的动态行为更加复杂[1～13].为了简化,人们主要研究简单系统的动力学行为.这些研究对复杂的大型网络上也很有用.

关键词：离散时延双神经元网络渐近稳定性神经网络人工神经网络

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Building Intrusion Tolerant Software System

Building Intrusion Tolerant Software System

引用

The 1st Chinese Conference on Trusted Computing and Information Security

作者： PENG wen-ling, WANG Li-na, ZHANG Huan-guo, CHEN Wei School of computer, Wuhan university, Wuhan 430072, Hubei, china Network Center, Gannan Teachers college, Ganzhou 341000, Jiangxi, china

＜正＞ In this paper, we describe and analyze the hypothesis about intrusion tolerance software system, so that it can provide an intended server capability and deal with the impacts caused by the intruder exploiting the inherent security vulnerabilities. We present some intrusion tolerance technology by exploiting N-version module threshold method in constructing multilevel secure software architecture, by detecting with hash value, by placing an "antigen" word next to the return address on the stack that is similar to human immune system, and by adding " Honey code" nonfunctional code to disturb intruder, so that the security and the availability of the software system are ensured.

关键词： intrusion tolerant immune code Honey code trusted computing

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Outcomes of combined mitochondria and mesenchymal stem cellsderived exosome therapy in rat acute respiratory distress syndrome and sepsis

引用

World Journal of Stem Cells 2024年第6期16卷 690-707页

作者： Kun-Chen Lin wen-Feng Fang Jui-Ning Yeh John Y Chiang Hsin-Ju Chiang Pei-Lin Shao Pei-Hsun Sung Hon-Kan Yip Department of Anesthesiology Kaohsiung Chang Gung Memorial HospitalKaohsiung 83301TaiwanChina Division of Pulmonary and Critical Care Medicine Department of Internal MedicineKaohsiung Chang Gung Memorial HospitalChang Gung University College of MedicineKaohsiung 83301TaiwanChina Department of Cardiology The First Affiliated Hospital of Jinan UniversityGuangzhou 510630Guangdong ProvinceChina Department of computer science and Engineering National Sun Yat-sen UniversityKaohsiung 804201TaiwanChina Department of Healthcare Administration and Medical Informatics Kaohsiung Medical UniversityKaohsiung 80708TaiwanChina School of Medicine Chung Shan Medical UniversityTaichung 40201TaiwanChina Department of Nursing Asia UniversityTaichung 41354TaiwanChina Division of Cardiology Department of Internal MedicineKaohsiung Chang Gung Memorial Hospital and Chang Gung University College of MedicineKaohsiung 83301TaiwanChina Institute for Translational Research in Biomedicine Kaohsiung Chang Gung Memorial HospitalKaohsiung 83301TaiwanChina Center for Shockwave Medicine and Tissue Engineering Kaohsiung Chang Gung Memorial HospitalKaohsiung 83301TaiwanChina Department of Medical Research China Medical University HospitalChina Medical UniversityTaichung 40402TaiwanChina School of Medicine College of MedicineChang Gung UniversityTaoyuan 33302TaiwanChina

BACKGROUND The treatment of acute respiratory distress syndrome(ARDS)complicated by sepsis syndrome(SS)remains *** To investigate whether combined adipose-derived mesenchymal-stem-cells(ADMSCs)-derived exosome(EXAD)and exogenous mitochondria(mitoEx)protect the lung from ARDS complicated by *** In vitro study,including L2 cells treated with lipopolysaccharide(LPS)and in vivo study including male-adult-SD rats categorized into groups 1(sham-operated-control),2(ARDS-SS),3(ARDS-SS+EXAD),4(ARDS-SS+mitoEx),and 5(ARDS-SS+EXAD+mitoEx),were included in the present *** In vitro study showed an abundance of mitoEx found in recipient-L2 cells,resulting in significantly higher mitochondrial-cytochrome-C,adenosine triphosphate and relative mitochondrial DNA levels(P1).The protein levels of inflammation[interleukin(IL)-1β/tumor necrosis factor(TNF)-α/nuclear factor-κB/toll-like receptor(TLR)-4/matrix-metalloproteinase(MMP)-9/oxidative-stress(NOX-1/NOX-2)/apoptosis(cleaved-caspase3/cleaved-poly(ADP-ribose)polymerase)]were significantly attenuated in lipopolysaccharide(LPS)-treated L2 cells with EXAD treatment than without EXAD treatment,whereas the protein expressions of cellular junctions[occluding/β-catenin/zonula occludens(ZO)-1/E-cadherin]exhibited an opposite pattern of inflam-mation(all P1).Animals were euthanized by 72 h post-48 h-ARDS induction,and lung tissues were *** 72 h,flow cytometric analysis of bronchoalveolar lavage fluid demonstrated that the levels of inflam-matory cells(Ly6G+/CD14+/CD68+/CD11b/c+/myeloperoxidase+)and albumin were lowest in group 1,highest in group 2,and significantly higher in groups 3 and 4 than in group 5(all P1),whereas arterial oxygen-saturation(SaO2%)displayed an opposite pattern of albumin among the *** findings of lung injury/fibrosis area and inflammatory/DNA-damaged markers(CD68+/γ-H2AX)displayed an identical pattern of SaO2%among the groups(all P1).The pro

关键词： Acute respiratory distress syndrome Sepsis syndrome Exosomes Mitochondria Adipose tissue-derived mesenchymal stem cells Inflammation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Threshold Multiparty Controlled Teleportation of Arbitrary m-Qubit Quantum Information

引用

Communications in Theoretical Physics 2009年第10期52卷 593-596页

作者： yang Yu-Guang wen Qiao-Yan college of computer science and technology Beijing University of Technology Beijing 100124 China State Key Laboratory of Integrated Services Network Xidian University Xi＇an 710071 China State Key Laboratory of Information Security （Graduate university of Chinese Academy of sciences） Beijing 100049 China State Key Laboratory of Networking and Switching technology Beijing University of Posts and Telecommunications Beijing 100876 China

We present a （t, .n） threshold multiparty controlled quantum teleportation protocol of an arbitrary m-qubit quantum state between two remote parties. The unknown m-qubit quantum state can be recovered by the receiver under control of a subset of the n controllers if the number of the subset is larger than or equal to a threshold, say, t, but not for any t - 1 or fewer controllers. Our scheme seems to be more practical and more flexible than other existing protocols. The quantum resource required is just m Einstein-Podolsky-Rosen （EPR） pairs plus some single photons. The techniques required are only Bell state measurement, single-qubit unitary operation and yon Neumann measurement. So our scheme is also feasible with present-day technique.

关键词： controlled teleportation threshold controlled teleportation entanglement

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于改进YOLOv8算法的实时细粒度植物病害检测

引用

中国农机化学报 2024年第5期45卷 188-194页

作者：薛霞刘鹏周文运城学院数学与信息技术学院山西运城044000 山西农业大学信息科学与工程学院山西晋中030800 中国科学院计算技术研究所计算机体系结构国家重点实验室北京市100190

为解决现有识别方法在植物病害检测中遇到的密集分布、不规则形态、多尺度目标类别、纹理相似性等障碍,提出一种高性能的实时细粒度植物病害检测框架。首先,在YOLOv8主干网络和颈部设计两个新的残差块,增强特征提取和降低计算成本;其次... 详细信息

为解决现有识别方法在植物病害检测中遇到的密集分布、不规则形态、多尺度目标类别、纹理相似性等障碍,提出一种高性能的实时细粒度植物病害检测框架。首先,在YOLOv8主干网络和颈部设计两个新的残差块,增强特征提取和降低计算成本;其次,引入DenseNet层,并使用Hard-Swish函数作为主要激活函数,以提高模型的准确性;最后,设计PANet网络,用于保留细粒度的局部信息和改善特征融合。在不同的复杂环境下,对番茄植株的四种不同病害进行检测。试验结果表明,所提改进模型在检测准确性和速度上均优于现有模型的检测模型。当检测速度为71.23 FPS时,所提改进模型精确度为92.58%,召回率为97.59%,F_(1)分数为93.64%。为精准农业自动化提供有效的技术手段。

关键词：植物病害检测改进YOLOv8 实时目标检测深度神经网络残差网络

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

“数学情境与提出问题”教学模式的研究性学习因素及体现

引用

数学教育学报 2004年第4期13卷 90-92页

作者：唐文艳张洪林贵州财经学院信息学院贵州贵阳550004 贵州师范大学数学与计算机科学学院贵州贵阳550001

“ 数学情境与提出问题” 教学是在数学学科教学中实施研究性学习的重要教学模式,在“ 创设数学情境——提出数学问题——解决数学问题——注重数学应用” 的全过程中充分体现了研究性学习的因素.

关键词：数学教学教学模式数学情境问题提出问题解决研究性学习

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

围长为r的圈分布图最大边数的新下界

引用

同济大学学报（自然科学版） 2001年第8期29卷 914-919页

作者：邹辉文李文新同济大学投资研究所上海200092 抚州师专数学与计算机系江西抚州344000

阶为n的图G的圈长分布为序列 {C1,C2 ,… ,Cn} ,其中Ci 是G中长为i的圈的数目 .若图G的圈长分布满足C1=C2 =… =Cr -1=0 ,Cr=1,且对i=r +1,… ,n ,有Ci≤ 1,则称图G是围长为r的圈分布图 .用 fr(n)表示阶为n的围长为r的圈分布图最大可能... 详细信息

阶为n的图G的圈长分布为序列 {C1,C2 ,… ,Cn} ,其中Ci 是G中长为i的圈的数目 .若图G的圈长分布满足C1=C2 =… =Cr -1=0 ,Cr=1,且对i=r +1,… ,n ,有Ci≤ 1,则称图G是围长为r的圈分布图 .用 fr(n)表示阶为n的围长为r的圈分布图最大可能的边数 .本文证明 :对每个整数n≥R0 (其中 :r =3时 ,R0 =17;r≥4时 ,R =3r - [r/2 ]+5 ) ,有 fr(n)≥n -r+3k +t+4

关键词：圈圈长分布圈分布图证明构造法

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：