检索结果-南通市图书馆

Efficient production optimization for naturally fractured reservoir using EDFM

Petroleum Science 2023年第4期20卷 2268-2281页

作者： Jian-Chun Xu wen-xin zhou Hang-Yu Li Key Laboratory of Unconventional Oil&Gas Development China University of Petroleum(East China)Ministry of EducationQingdao266580ShandongPR China School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongPR China

Naturally fractured reservoirs make important contributions to global oil and gas reserves and *** modeling and simulation of naturally fractured reservoirs are different from conventional reservoirs as the existence of natural *** address the development optimization problem of naturally fractured reservoirs,we propose an optimization workflow by coupling the optimization methods with the embedded discrete fracture model(EDFM).Firstly,the effective and superior performance of the workflow is verified based on the conceptual *** stochastic simplex approximate gradient(StoSAG)algorithm,the ensemble optimization(EnOpt)algorithm,and the particle swarm optimization(PSO)algorithm are implemented for the production optimization of naturally fractured reservoirs based on the improved versions of the Egg model and the PUNQ-S3 *** results of the two cases demonstrate the effectiveness of this optimization workflow by finding the optimal well controls which yield the maximum net present value(NPV).Compared to the initial well control guess,the final NPV obtained from the production optimization of fractured reservoirs based on all three optimization algorithms is significantly *** with the optimization results of the PSO algorithm,StoSAG and EnOpt have significant advantages in terms of final NPV and computational *** results also show that fractures have a significant impact on reservoir *** economic efficiency of fractured reservoir development can be significantly improved by the optimization workflow.

关键词： Production optimization Naturally fractured reservoir Embedded discrete fracture method StoSAG algorithm PSO algorithm

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

Optimal Stopping Time of a Portfolio Selection Problem with Multi-assets

引用

Journal of the Operations Research Society of China 2021年第1期9卷 163-179页

作者： Xian-Ping Wu Seakweng Vong wen-xin zhou School of Applied Mathematics Guangdong University of TechnologyGuangzhou 510006China Department of Mathematics University of MacaoMacaoChina Department of Applied Mathematics The Hong Kong Polytechnic UniversityHong KongChina

In this work,we study a right time for an investor to stop the investment among multi-assets over a given investment horizon so as to obtainmaximum *** formulate it to a two-stage *** main problem is not a standard optimal stopping problem due to the non-adapted term in the objective function,and we turn it to a standard one by stochastic *** subproblem with control variable in the drift and volatility terms is solved first via stochastic control method.A numerical example is presented to illustrate the efficiency of the theoretical results.

关键词： Optimal stopping Portfolio Valuefunction Dynamic programming Holding region

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

The dual roles of cytokines in Alzheimer’s disease:update on interleukins, TNF-α,TGF-β and IFN-γ

引用

Translational Neurodegeneration 2016年第1期5卷 52-66页

作者： Cong Zheng xin-wen zhou Jian-Zhi Wang Department of Pathophysiology School of Basic Medicine and the Collaborative Innovation Center for Brain ScienceKey Laboratory of Ministry of Education of China for Neurological DisordersTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Co-innovation Center of Neuroregeneration Nantong 226000China

Alzheimer’s disease(AD)is one of the most common neurodegenerative disorders in the *** the mechanisms underlying AD neurodegeneration are not fully understood,it is well recognized that inflammation plays a crucial role in the initiation and/or deterioration of AD *** evidence suggests that different cytokines,including interleukins,TNF-α,TGF-βand IFN-γ,are actively participated in AD pathogenesis and may serve as diagnostic or therapeutic targets for AD ***,we review the progress in understanding the important role that these cytokines or neuroinflammation has played in AD etiology and pathogenesis.

关键词： Alzheimer’s disease Cytokines Interleukins TNF-α TGF-β IFN-γ

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

Enhanced ethanol oxidation over Pd nanoparticles supported porous graphene-doped MXene using polystyrene particles as sacrificial templates

引用

Rare Metals 2022年第9期41卷 3170-3179页

作者： Yi-Zhe Chen Ming zhou Yu-Fu Huang Yan-Yun Ma Luo-Yi Yan xin-wen zhou xin-zhou Ma Xue-Ling Zhao Cheng Chen Juan Bai Dong-Hai Lin Shanghai Engineering Research Center of Advanced Thermal Functional Materials Shanghai Key Laboratory of Engineering Materials Application and EvaluationSchool of Energy and MaterialsShanghai Polytechnic UniversityShanghai201209China Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou215123China College of Biological and Pharmaceutical Sciences China Three Gorges UniversityYichang443002China School of Materials Science and Hydrogen Energy Foshan UniversityFoshan528000China School of Chemistry and Physics Queensland University of TechnologyBrisbaneQLD4000Australia

Fabrication of superior catalytic performance palladium-based catalysts with affordable cost is the key to develop direct ethanol fuel ***,Pd-decorated three-dimensional(3D)porous constructed from graphene oxide(GO)and MXene combining with polystyrene(PS)particles as sacrificial templates(Pd/GO-MXene-PS)to elevate the catalytic performance for ethanol oxidation was *** 3D porous interconnected structure of Pd/GO-MXene-PS was characterized by scanning electron microscope(SEM),transmission electron microscope(TEM)and Brunner−Emmet−Teller(BET).By optimizing the doping ratio of MXene to GO,the mass activity of Pd/GO_(5)-MXene_(5)-PS(2944.0 mA·mg^(−1))was 3.0 times higher than that of commercial Pd/C(950.4 mA·mg^(−1))toward ethanol oxidation in base ***,the rotating disk electrode(RDE)results demonstrated that Pd/GO5-MXene5-PS had a faster kinetics of ethanol *** enhanced ethanol oxidation over Pd/GO5-MXene5-PS could attribute to the excellent 3D interconnected porous structure,large surface area,good conductivity and homogeneous Pd *** work provided a new idea for creating 3D porous MXene composite materials in electrocatalysis.

关键词： Pd nanoparticles Ethanol oxidation Graphene MXene Polystyrene(PS)template Rotating disk electrode(RDE)

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

Bifunctional sulfonated covalent polymers as the modulator for oriented and highly reversible zinc plating

引用

Science China Chemistry 2023年第1期66卷 289-296页

作者： Meng-Jie Chen Qing-Yuan Zhao Hong-Rui Wang Tao Long xin Ma Qing Wu wen-xin zhou Xiong-Wei Wu Xian-Xiang Zeng School of Chemistry and Materials Science Hunan Agricultural UniversityChangsha 410128China College of Chemistry and Chemical Engineering Hunan Provincial Key Laboratory of Efficient and Clean Utilization of ManganeseResourcesCentral South UniversityChangsha 410083China Information and Network Center Central South UniversityChangsha 410083China

The vast superiority in resource sustainability and volumetric energy density enables metallic zinc(Zn)to construct costeffective and environment-benign battery systems for the energy ***,the problems of Zn dendrites and poor Coulombic efficiency(CE)during cell’s whole life cycle stump its advancement as a rechargeable battery *** solution is to modulate the Zn^(2+) desolvation prior to electro-reduction and subsequent ***,a transferred protection tactic via a bifunctional sulfonated covalent polymer interlayer is proposed to regulate the Zn2+desolvation,which affects the formation of solid-electrolyte interphase,and guides its plating along with preferable(002)crystal ***,the high initial CE of 96.3%and the long-term average CE of 99.8%for 310 cycles are achieved in Zn||Cu cells and 570-h circulation is also realized at 2 mA cm^(-2)/10 mAh cm^(-2)in Zn||Zn ***,Zn||hydrated vanadium oxide-based full batteries with the low-concentration organic electrolytes are also demonstrated with the high specific capacity of 173.8 mAh g^(-1)at 0.5 A g^(-1)and 64%capacity retention over 305 cycles and oriented Zn deposition.

关键词： Zn anode interface chemistry sulfonated covalent polymer oriented plating reversibility

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

High electro-catalytic graphite felt/Mn O2composite electrodes for vanadium redox flow batteries

引用

Science China Chemistry 2018年第6期61卷 732-738页

作者： Qiang Ma Qi Deng Hang Sheng Wei Ling Hong-Rui Wang Hai-wen Jiao Xiong-Wei Wu wen-xin zhou Xian-Xiang Zeng Ya-Xia Yin Yu-Guo Guo College of Science Hunan Agricultural University Changsha 410128 China Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China Hunan Province Yin Feng New Energy Co. LTD Changsha 410000 China

A mild and simple synthesis process for large-scale vanadium redox flow batteries(VRFBs)energy storage systems is desirable.A graphite felt/Mn O_2(GF-MNO)composite electrode with excellent electrocatalytic activity towards VO^(2+)/VO_2^+redox couples in a VRFB was synthesized by a one-step hydrothermal *** resulting GF-MNO electrodes possess improved electrochemical kinetic reversibility of the vanadium redox reactions compared to pristine GF electrodes,and the corresponding energy efficiency and discharge capacity at 150 m A cm^(-2)are increased by 12.5%and 40%,*** discharge capacity is maintained at 4.8 A h L^(-1)at the ultrahigh current density of 250 m A cm^(-2).Above all,80%of the energy efficiency of the GF-MNO composite electrodes is retained after 120 charge-discharge cycles at 150 m A cm^(-2).Furthermore,these electrodes demonstrated that more evenly distributed catalytic active sites were obtained from the Mn O_2particles under acidic *** proposed synthetic route is facile,and the raw materials are low cost and environmentally ***,these novel GF-MNO electrodes hold great promise in large-scale vanadium redox flow battery energy storage systems.

关键词： VRFB one-step hydrothermal graphite felt manganese dioxide composite electrode

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

Melatonin ameliorated okadaic-acid induced Alzheimer-like lesions

引用

Acta Pharmacologica Sinica 2004年第3期25卷 22-26页

作者： Yi-peng WANG,Xian-tao LI,Shi-jie LIU,xin-wen zhou,Xiao-chuan WANG,Jian-zhi WANG2 TongjiMedical College,Huazhong University of Science and Technology,Wuhan 430030,China Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China

AIM: To explore the protective effects of melatonin (Mel) on the abnormal phosphorylation of neuronal cytoskeletal proteins. METHODS: We generated a neuroblastoma (SH-SY5Y) cell system in which cytoskeletal proteins are abnormally phosphorylated resulting in microtubule disruption due to the marked inhibition of protein phosphatase activities by okadaic acid (OA). RESULTS: OA-induced declines in cell viability and mitochondrial metabolic activity were remarkably prevented by Mel. In addition, the hyperphosphorylation/accumulation of neurofilament- (NF-) H/M subunits and the disruption of microtubules, induced by OA, were significantly inhibited by Mel. CONCLUSION: Our results suggest multiple protective functions of Mel against a series of pathological lesions known to culminate in AD, including abnormal phosphorylation of cytoskeletal proteins, microtubule disassembly and mitochondrion-initiated cell toxicity.

关键词： Alzheimer disease protein phosphatase okadaic acid neurofilament proteins melatonin

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

EFFECT OF OPERATING CONDITIONS ON THE SELECTIVITY TO α-OLEFIN IN FISCHER-TROPSCH SYNTHESIS

引用

Journal of Energy Chemistry 1995年第1期 59-65页

作者： LIU Zhong-wen ZHANG Zhi-xin zhou Jing-LaiInstitute of Cual Chermistry, Academa Sinica Taiyuan, Shanxi 030001 To whom correspondence should be addressed.

The effect of operating conditions on the O/P ratios of hydrocarbons produced from FTS over Fe/Cu/K catalyst was studied in a continuously stirring tank reactor (CSTR, Autoclave Engineers) under conditions of T= 515 -542 K, GHSV = 576-906 h-1 and H2/CO ratio= 1. 12 to 3.97. The O/P ratios of hydrocarbons with different carbon numbers may increase, decrease or keep constant with the increase of reaction temperature, GHSV and H2/CO ratio in reactor, respectively. The O/P ratios decrease with the increase of carbon numbers of hydrocarbons and the effect of operating conditions on the O/P ratios trends to decrease with the increase of carbon numbers from three to fifteen. The ratio of ethylene to ethane is always very low and almost independent of the change of operating conditions which indicates that the ethylene may participate in the process of chain growth.

关键词： Fischer-Tropsch synthesis selectivity α-olefin to n-paraffin ratio

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

辐射诱导小鼠淋巴瘤细胞凋亡涉及NADPH氧化酶的活性

引用

细胞生物学杂志 2006年第3期28卷 468-472页

作者：周新文苏州大学放射医学与公共卫生学院苏州215021

用60Coγ射线对小鼠淋巴瘤细胞3SB(p53+/+)和1B1C4(p53-/-)进行照射处理。观察了辐射后细胞形态学变化,结果发现,3SB对γ射线诱导的凋亡非常敏感,而1B1C4细胞对辐射具有抗性。DNA片断化试验和藻红B染色试验的结果也证实这一点。进一步... 详细信息

用60Coγ射线对小鼠淋巴瘤细胞3SB(p53+/+)和1B1C4(p53-/-)进行照射处理。观察了辐射后细胞形态学变化,结果发现,3SB对γ射线诱导的凋亡非常敏感,而1B1C4细胞对辐射具有抗性。DNA片断化试验和藻红B染色试验的结果也证实这一点。进一步分析了凋亡信号途径上的caspase-3和p53。在3SB细胞中,检测到激活的caspase-3并发现p53的表达随辐射剂量的增加而增高。比较了两种细胞中caspase-3mRNA的表达,但未见差异。对两种细胞中的NADPH氧化酶活性的测定结果表明,凋亡的3SB细胞中的NADPH氧化酶活性增高。因此,在电离辐射诱导细胞凋亡的过程中,NADPH氧化酶参与了上游信号的转导。

关键词：辐射诱导淋巴瘤细胞凋亡 NADPH氧化酶

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

Caudate lobectomy by the third porta hepatis anatomical method: a study of 16 cases

引用

Hepatobiliary & Pancreatic Diseases International 2006年第3期5卷 387-390页

作者： Huai-Quan Zuo, Lu-Nan Yan, Yong Zeng, Jia-Ying Yang, Hong-Zhi Luo, Jiang-wen Liu, Li-xin zhou and Qiang Jin Department of General Surgery, West China Hospital, Sichuan University, Chengdu 610041, China Department of General Surgery West China Hospital Sichuan University Chengdu 610041 China. Zuohuaiquan@***

BACKGROUND: The treatment for primary tumor in the caudate lobe of the liver is difficult because of its unique anatomical location. This study was undertaken to improve operative techniques and results by a new anatomical method of caudate lobectomy. METHODS: Clinical data of 16 patients who had had caudate lobectomy for the liver from January 1996 to November 2004 were retrospectively analyzed. The third porta hepatis anatomical method was performed in all 16 patients. Operative time, intraoperative blood loss, postoperative complications were recorded. The 1-, 3-, and 5-year survival rates of 13 patients with caudate lobe carcinoma were followed up. Anatomical status, operative routes, operative procedures, liver blood supply were evaluated. RESULTS: The operation was successful in the 16 patients. The operative time was 255±70 minutes and blood loss 740±402 ml. None of the patients died from massive bleeding during the operation, nor did complications such as biliary fistula and liver failure occurred. In 13 patients with malignant tumor, 7 died from recurrence and metastasis of the tumor and the other 6 are still alive at the end of follow-up. One patient has survived for 6 years. The 1-, 3-, and 5-year survival rates in the 13 patients were 83.9%, 58.7% and 39.2%, respectively. CONCLUSION: Caudate lobectomy by the third porta hepatis anatomical method can improve operative effect and increase the resection probability for solitary tumor in the caudate lobe.

关键词： caudate lobectomy the third porta hepatis anatomy titanium clip

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：