检索结果-南通市图书馆

Management of hepatocellular carcinoma patients with portal vein tumor thrombosis:A narrative review

Hepatobiliary & Pancreatic Diseases International 2022年第2期21卷 134-144页

作者： Zi-Wen Tao bao-quan cheng Tao Zhou Yan-Jing Gao Department of Gastroenterology Qilu HospitalCheeloo College of MedicineShandong UniversityJinan 250012China

Background: Hepatocellular carcinoma(HCC) is one of the main reasons for malignancy-related death. Portal vein tumor thrombosis(PVTT) is the most common form of macrovascular invasion related to HCC occurring in 10%-60% of patients. HCC with PVTT is usually characterized by worsening liver function, vulnerability to blood metastasis, higher incidence of complications associated with portal hypertension, and intolerance to treatment when compared with that without PVTT. If only treated with supportive care, the median survival of HCC with PVTT is about 2.7 months. In the past, sorafenib was the only recommended therapy by guidelines with limited effectiveness. This narrative review aimed to describe the current management options for HCC with PVTT. Data sources: We have reviewed literature from Pub Med on the treatment of HCC with PVTT and compiled evidence-based facts on effective therapies available for different types of PVTT. Results: Sorafenib monotherapy is not much effective, but combining it with other methods can improve survival. Each type of PVTT can beneft from the combination of transarterial chemoembolization and sorafenib than sorafenib monotherapy. The tumor downstaging can be realized possibly after transarterial chemoembolization, but tumor invasion into the main trunk of the portal vein greatly impairs efficacy. Although surgery is a curative approach, it is often not recommended for Vp4 PVTT. Some new methods can broaden the indication, but further explorations are needed. Radiotherapy can decrease the possibility of Vp3 progression to Vp4, but building a forecast model of best radiation dose and response is necessary. Systemic chemotherapy, hepatic arterial infusion chemotherapy, radiofrequency ablation, portal stenting, and traditional Chinese medicine are also benefcial in Vp3-4 PVTT. The accurate diagnosis of PVTT can be made by radiomics, and prognostic classifcation models can be used to design personalized treatments. The application of new

关键词： Hepatocellular carcinoma Portal vein tumor thrombosis Transarterial chemoembolization Radiotherapy Surgery Sorafenib

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

Endoscopic papillary large balloon dilation with or without sphincterotomy for large bile duct stones removal:Short-term and long-tem outcomes

引用

Hepatobiliary & Pancreatic Diseases International 2020年第4期19卷 404-406页

作者： Tao Yu Yan-Qiu Yue Jian Chen Hong-bao Ren Rui Ji bao-quan cheng Department of Gastroenterology Qilu HospitalSchool of MedicineShandong UniversityJinan 250012China Department of Gastroenterology Binzhou People’s HospitalBinzhou 256610China

To the Editor:Simplifying the endoscopic procedures and reducing the procedure time are necessary,while guaranteeing that the stone retrieval efficacy is an important prerequisite for minimizing the risk of complications after endoscopic retrograde cholangiopancreatography(ERCP).Compared with endoscopic sphincterotomy(EST),which can effectively extract common bile duct stones,endoscopic papillary balloon dilatation(EPBD)causes less bleeding and perforation and preserves the function of sphincter of Oddi[1,2].However,in comparison with EST,EPBD is related to a higher risk of pancreatitis[2,3].Retrieving large bile duct stones(≥10 mm)using the conventional techniques EST and EPBD is *** use of EST combined with endoscopic papillary large balloon dilation(EPLBD)for bile duct stone removal was first introduced by Ersoz et al.[4],and this innovation has become useful in patients with large or difficult *** addition,removing the bile duct stones should be considered ***,EPLBD procedure is appropriate for patients with unfavorable anatomy for EST,such as those who underwent Roux-en-Y or Billroth II gastrectomy[5].

关键词： balloon bile papillary

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

磁化等离子体对圆筒结构内流场特性的影响

引用

计算机仿真 2017年第6期34卷 37-41页

作者：钟孟春李晓刚毛保全李程装甲兵工程学院北京100072

鉴于高温高压火药燃气的等离子体特性,提出一种利用磁化等离子体改善火药燃气气动特性与提升推力的方法。基于FLUENT软件的MHD模块与UDF二次开发功能,采用诱导磁场法对等离子体控制方程进行了求解,数值研究了磁化等离子体对圆筒结构内... 详细信息

鉴于高温高压火药燃气的等离子体特性,提出一种利用磁化等离子体改善火药燃气气动特性与提升推力的方法。基于FLUENT软件的MHD模块与UDF二次开发功能,采用诱导磁场法对等离子体控制方程进行了求解,数值研究了磁化等离子体对圆筒结构内流场特性的影响。结果表明:外加磁场强度和等离子体电导率是影响流动各向异性的两个主要的因素。外加磁场后,等离子体内感应出的洛伦兹力能够降低壁面的摩擦系数与燃气的湍流强度,从而有效降低摩擦损失和燃气向壁面的传热量,最终提升沿轴线方向的燃气压力。当外加磁场为1T、电导率为5000s/m时,壁面摩擦系数减小了约8.7%。

关键词：磁场等离子体磁流体力学火药燃气洛伦兹力

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

A versatile synthetic strategy towards rare earth based metal-organic frameworks

引用

Science China Chemistry 2025年

作者： quan Shi Yun-Hao Xu Ming-Hui Chen Peng Zhao Wen-Bo Deng Ji Xiong Kai Guo Ya-Qing Feng bao Zhang School of Chemical Engineering and Technology Tianjin University Tianjin Collaborative Innovation Center of Chemical Science and Engineering Guangdong Laboratory Chemistry & Fine Chemical Industry Jieyang Center

Rare earth metal-organic frameworks (RE-MOFs) have drawn wide attention owing to diverse network structures and various application ***,due to the unpredictable formation of the nodes,it is still challenging to design novel RE-MOFs.A novel versatile strategy was developed employing a RE-acetate complex (RE2(CH3COO)6·4H2O) as a precursor to construct RE-MOFs.2D RE-MOFs (RE-DBP) and 3D RE-MOFs (RE-TCPP) could be obtained by using dicarboxylic porphyrin ligands H2DBP and tetracarboxylic porphyrin ligands H2TCPP,*** RE-MOFs were further synthesized to verify the universality of the *** crystalline RE-MOFs could also be prepared at room temperature via the developed strategy,which could significantly promote large-scale preparation and practical application of *** proof of the concept,the performance of porphyrin-based RE-MOFs was investigated in the photocatalytic cycloaddition of CO2with *** the RE-DBP(Co) MOFs,Tb-DBP(Co) exhibited the best photocatalytic performance,which was also greater than that of the corresponding 3D MOF Tb-TCPP(Co) due to the optimal 2D structure and thus the accelerated photogenerated charge separation and transfer *** work not only provides a novel versatile strategy to design and develop RE-MOFs,but also proposes a promising approach for the potential bulk production of RE-MOFs at room temperature.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Positive effect of Mo on mechanical properties of a Ni-42W-10Co-x Mo medium heavy alloy

引用

China Foundry 2025年

作者： Guo-xin Cao Jian-xin Dong Yong-sheng He He Jiang Fang Hao Zhi-hua Nie Teng-fei Ma bao-quan Fu School of Materials Science and Engineering University of Science and Technology Beijing Xi'an Superalloy Technology Co. Ltd. School of Materials Science and Engineering Beijing Institute of Technology Key Laboratory of Air-driven Equipment Technology of Zhejiang Province Quzhou University

In this study,a novel Ni-W-Co-Mo medium heavy alloy (MHA) was designed to improve its mechanical strength via Mo *** the Ni-42W-10Co-xM o alloy series,where x represents the weight percent of Mo and varies between 0,1,2,5,and 10,the microstructure transitions from a dendritic structure to a hypoeutectic structure as the Mo content increases from 0 to 5wt.%.Moreover,as the Mo content increases from 0to 10wt.%,the distribution of theμ-phase shifts from being individually dispersed to forming aggregates,and its volume fraction rises from 0.5%to 7.9%.Notably,theμ-phase evolves into an eutectic microstructure,which helps in minimizing the segregation of *** change is accompanied by a substantial enhancement in mechanical properties;specifically,the compressive yield strength at room temperature increases from 350 MPa to 646 MPa,indicating a significant 85%***,the microhardness increases from 230 HV to 304 *** dynamics simulations further reveal that the strengthening mechanism of Ni-42W-10Co-xM o alloys is Mo-induced solid solution strengthening and precipitation strengthening.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

西康二线软土路基沉降观测技术

引用

价值工程 2013年第16期32卷 122-123页

作者：郎儒林保承全杨剑陕西铁路工程职业技术学院渭南714000 中铁十四局集团隧道工程有限公司济南250000 中铁二十二局集团第二工程有限公司北京100000

文章结合西康二线路基工程施工,依据软土路基处治的原理,介绍了在软土路基施工过程中,通过合理布设测设原件,对软土路基进行全面沉降观测和数据分析,及时调整填土速度和处理方法,确保软土路基和路堤施工的安全稳定。

关键词：软土路基沉降观测路基稳定

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

Large eddy simulation for wind field analysis based on stabilized finite element method

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第4期12卷 278-290页

作者： cheng HUANG Yan bao Dai ZHOU Jin-quan XU School of Naval Architecture Ocean and Civil Engineering Shanghai Jiao Tong University Shanghai 200240 China

In this paper,a stabilized finite element technique,actualized by streamline upwind Petrov-Galerkin(SUPG) stabilized method and three-step finite element method(FEM),for large eddy simulation(LES) is developed to predict the wind flow with high Reynolds *** form of LES motion equation is combined with the SUPG stabilized term for the spatial finite element *** explicit three-step scheme is implemented for the temporal *** the numerical example of 2D wind flow over a square rib at Re=4.2×105,the Smagorinsky's subgrid-scale(SSGS) model,the DSGS model,and the DSGS model with Cabot near-wall model are applied,and their results are analyzed and compared with experimental ***,numerical examples of 3D wind flow around a surface-mounted cube with different Reynolds numbers are performed using DSGS model with Cabot near-wall model based on the present stabilized method to study the wind field and compared with experimental and numerical ***,vortex structures for wind flow around a surface-mounted cube are studied by present numerical *** and satisfactory results are obtained,which are consistent with most of the measurements even under coarse mesh.

关键词： Large eddy simulation(LES) Subgrid-scale model Stabilized finite element method(FEM) Unstructured grid Wind flow

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

Continuous non-autonomous memristive Rulkov model with extreme multistability

引用

Chinese Physics B 2021年第12期30卷 121-130页

作者： quan Xu Tong Liu cheng-Tao Feng Han bao Hua-Gan Wu Bo-cheng bao School of Microelectronics and Control Engineering Changzhou UniversityChangzhou 213164China

Based on the two-dimensional(2D)discrete Rulkov model that is used to describe neuron dynamics,this paper presents a continuous non-autonomous memristive Rulkov *** effects of electromagnetic induction and external stimulus are simultaneously considered *** electromagnetic induction flow is imitated by the generated current from a flux-controlled memristor and the external stimulus is injected using a sinusoidal ***,the presented model possesses a line equilibrium set evolving over the *** equilibrium set and their stability distributions are numerically simulated and qualitatively ***,numerical simulations are executed to explore the dynamical behaviors associated to the electromagnetic induction,external stimulus,and initial ***,the initial conditions dependent extreme multistability is elaborately disclosed in the continuous non-autonomous memristive Rulkov ***,an analog circuit of the proposed model is implemented,upon which the hardware experiment is executed to verify the numerically simulated extreme *** extreme multistability is numerically revealed and experimentally confirmed in this paper,which can widen the future engineering employment of the Rulkov model.

关键词： extreme multistability memristor electromagnetic induction Rulkov model

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

Carbon Dioxide Sequestration via Steelmaking Slag Carbonation in Alkali Solutions: Experimental Investigation and Process Evaluation

引用

Acta Metallurgica Sinica(English Letters) 2018年第7期31卷 771-784页

作者： Chen-Ye Wang Wei-Jun bao Zhan-cheng Guo Hui-quan Li State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Key Laboratory of Green Process and Engineering National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology Institute of Process EngineeringChinese Academy of Sciences

Carbon dioxide mineral sequestration with steelmaking slag is a promising method for reducing carbon dioxide in a large- scale setting. Existing calcium oxide or calcium hydroxide in steelmaking slag can be easily leached by water, and the formed calcium carbonate can be easily wrapped on the surface of unreacted steelmaking slag particles. Thus, further increase in the carbonation reaction rate can be prevented. Enhanced carbon dioxide mineral sequestration with steel- making slag in dilute alkali solution was analysed in this study through experiments and process evaluation. Operating conditions, namely alkali concentration, reaction temperature and time, and liquid-to-solid ratio, were initially investigated. Then, the material and energy balance of the entire process was calculated, and the net carbon dioxide sequestration efficiency at different reaction times was evaluated. Results showed that dilute alkali solution participated in slowing down the leaching of active calcium in the steelmaking slag and in significantly improving carbonation conversion rate. The highest carbonation conversion rate of approximately 50% can be obtained at the optimal conditions of 20 g/L alkali concentration, 2 mL/L liquid-to-solid ratio, and 70 ℃ reaction temperature. Carbonation reaction time significantly influences the net carbon dioxide sequestration efficiency. According to calculation, carbon dioxide emission of 52.6 kg/t- slag was avoided at a relatively long time of 120 min.

关键词： Steelmaking slag Dilute alkali solution COe mineral sequestration. Process evaluation

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

Regularity Condition of Solutions to the Quasi-geostrophic Equations in Besov Spaces with Negative Indices

引用

Acta Mathematicae Applicatae Sinica 2010年第3期26卷 381-386页

作者： bao-quan Yuan School of Mathematics and Information Science Henan Polytechnic University Henan 454000 China

With a Hǒlder type inequality in Besov spaces, we show that every strong solution θ（t, x） on （0, T ） of the dissipative quasi-geostrophic equations can be continued beyond T provided that ⊥θ（t, x） ∈L 2γ/... 详细信息

关键词： Quasi-geostrophic equations regularity conditions Besov spaces

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：