检索结果-南通市图书馆

Biomethane use for automobiles towards a CO_(2)-neutral energy system

Clean Energy 2021年第1期5卷 124-140页

作者： Fabio Orecchini Adriano Santiangeli fabrizio Zuccari Department of Sustainability Engineering CARe—Center for Automotive Research and Evolution/DISGuglielmo Marconi Universityvia Plinio 44Rome 00193Italy

To pursue the goal of sustainable mobility,two main paths can be considered:the electrification of vehicles and the use of biofuels,replacing fossil fuels,in internal combustion engine(ICE)*** paper proposes an analysis of different possible scenarios for automobiles towards a CO_(2)-neutral energy system,in the path of the use of biofuels and the production,distribution and use of *** study,an update of work presented previously,focuses on different scenarios that take into account numerous parameters that affect the overall efficiency of the production-and-use process.A Well-to-Wheel analysis is used to estimate the primary energy savings and reduction in greenhouse-gas emissions compared both to the use of fossil-based methane and to other fuels and automotive *** particular,the study shows that the Non-Renewable Primary Energy Consumption(NRPEC)for biomethane is slightly higher(+9%)than that of biodiesel,but significantly lower than those of all the other power trains analysed:-69%compared to the battery electric vehicle(BEV)and-55%compared to *** to the use of fossil natural gas,the NRPEC is reduced to just over a third(2.81).With regard to CO_(2) emissions,biomethane has the lowest values:-69%compared to BEV,-176%compared to bioethanol and-124%with respect to *** to the use of fossil natural gas,the CO_(2) emissions are reduced over a third(3.55).Moreover,the paper shows that biomethane can completely cover the consumption of fossil methane for vehicles in Italy,proposing two different hypotheses:maximum production and minimum *** is evident,therefore,that biomethane production can completely cover the consumption of fossil methane for vehicles:this means that the use of biomethane in the car can lead to a reduction in NRPEC equal to 28.9×10^(6) GJ/year and a reduction of CO_(2) emissions equal to 1.9×10^(6) t/year.

关键词： biomethane for automotive application WTW analysis primary energy balance renewable fuels

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

Persistent half-metallic ferromagnetism in a(111)-oriented manganite superlattice

引用

npj Computational Materials 2022年第1期8卷 727-734页

作者： fabrizio Cossu Heung-Sik Kim Biplab Sanyal Igor Di Marco Department of Physics and Institute of Quantum Convergence and Technology Kangwon National UniversityChuncheon24341Korea Asia Pacific Center for Theoretical Physics Pohang37673Korea Department of Physics and Astronomy Uppsala UniversityBox 516SE-75120UppsalaSweden Department of Physics POSTECHPohang37673Korea

We employ electronic structure calculations to show that a(111)-oriented(LaMnO_(3))_(12)∣(SrMnO_(3))_(6)superlattice retains a half-metallic ferromagnetic character despite its large *** link this behaviour to the strain and the octahedral connectivity between the *** also gives rise to breathing modes,which are coupled to charge and spin oscillations,whose components have a pure e_(g)*** interestingly,the magnetisation reaches its maximum value inside the LaMnO_(3)region and not at the interface,which is fundamentally different from what observed for the(001)*** inter-atomic exchange coupling shows that the magnetic order arises from the double-exchange mechanism,despite competing interactions inside the SrMnO_(3)***,the van Vleck distortions and the spin oscillations are crucially affected by the variation of Hund’s exchange and charge doping,which allows us to speculate that our system behaves as a Hund’s metal,creating an interesting connection between manganites and nickelates.

关键词： metallic exchange superlattice

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

Comment on:“Liver transplantation for iatrogenic bile duct injury during cholecystectomy:a French retrospective multicenter study”

引用

Hepatobiliary Surgery and Nutrition 2022年第4期11卷 577-579页

作者： Salah Khayat fabrizio Panaro Department of Surgery/Division of HBP Surgery&Transplantation Montpellier University Hospital-School of MedicineMontpellierFrance

We read with great interest the national retrospective multicenter observational study recently published by Chiche and collaborators(1)aiming to review liver transplants related to iatrogenic bile duct injury(BDI)during cholecystectomy and the risk factors for adverse outcomes in order to improve management of *** this study,all liver transplantation(LT)patients between 1994 and 2017 for BDI during cholecystectomy were *** patients were included in 11 French LT centers representing 0.13%of LT indications over this period.

关键词： bile cholecystectomy injury

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

Synthesis of Fractional-order PI Controllers and Fractional-order Filters for Industrial Electrical Drives

引用

IEEE/CAA Journal of Automatica Sinica 2017年第1期4卷 58-69页

作者： Paolo Lino Guido Maione Silvio Stasi fabrizio Padula Antonio Visioli IEEE Dipartimento di Ingegneria Elettrica e dell’Informazione Politecnico di Bari Department of Mathematics and Statistics Curtin University Department of Mechanical and Industrial Engineering University of Brescia

This paper introduces an electrical drives control architecture combining a fractional-order controller and a setpoint pre-filter. The former is based on a fractional-order proportional-integral(PI) unit, with a non-integer order integral action, while the latter can be of integer or non-integer type. To satisfy robustness and dynamic performance specifications, the feedback controller is designed by a loop-shaping technique in the frequency domain. In particular, optimality of the feedback system is pursued to achieve input-output tracking. The setpoint pre-filter is designed by a dynamic inversion technique minimizing the difference between the ideal synthesized command signal(i.e., a smooth monotonic response) and the prefilter step response. Experimental tests validate the methodology and compare the performance of the proposed architecture with well-established control schemes that employ the classical PIbased symmetrical optimum method with a smoothing pre-filter.

关键词： Dynamic inversion electrical drives fractionalorder PI controller loop-shaping set-point pre-filter

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

Evaluating Group Formation in Virtual Communities

引用

IEEE/CAA Journal of Automatica Sinica 2020年第4期7卷 1003-1015页

作者： Giancarlo Fortino Antonio Liotta fabrizio Messina Domenico Rosaci Giuseppe MLSarnè the DIMES Department of the University of Calabria Rende 87036Italy the School of Computing Edinburgh Napier UniversityEdinburgh EH105DTU.K. the Department of Mathematics and Informatics University of CataniaCatania 95125Italy the DIIES Department University of Reggio CalabriaLoc.Feo di Vito89122 Reggio Cal.Italy the Department DICEAM University Mediterranea of Reggio CalabriaLoc.Feo di Vito89122 Reggio Cal.Italy

In this paper, we are interested in answering the following research question: "Is it possible to form effective groups in virtual communities by exploiting trust information without significant overhead, similarly to real user communities?"In order to answer this question, instead of adopting the largely used approach of exploiting the opinions provided by all the users of the community(called global reputation), we propose to use a particular form of reputation, called local reputation. We also propose an algorithm for group formation able to implement the proposed procedure to form effective groups in virtual communities. Another interesting question is how to measure the effectiveness of groups in virtual communities. To this aim we introduce the index in a measure of the effectiveness of the group formation. We tested our algorithm by realizing some experimental trials on real data from the real world EPINIONS and CIAO communities, showing the significant advantages of our procedure w.r.t. another prominent approach based on traditional global reputation.

关键词： Group formation helpfulness online social communities reputation trust

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

Decision-making in high-risk leakage duodenopancreatectomy:pancreatic anastomosis or total pancreatectomy?

引用

Hepatobiliary Surgery and Nutrition 2023年第4期12卷 567-569页

作者： Lazare Sommier fabrizio Panaro Division of HBP Surgery and Transplantation Department of SurgeryMontpellier University HospitalSchool of MedicineMontpellierFrance

The Italian team from Verona,questions the place of total pancreatectomy(TP)as an alternative to pancreaticoduodenectomy(PD)in patients at high risk of pancreatic fistula in a monocentric retrospective study running from July 2017 to December 2019(1).A total of 702 patients were included,566 PD of which 101 were at high risk of pancreatic fistula(HR-PD),136 TP of which 86 were PD converted to TP(C-TP)for positive margin of pancreatic section for malignancy(49%),extensive vascular resection(14%)or technical reasons(27%)such as residual non-reconstructible pancreas/friable pancreas/microscopic Wirsung’s duct,10% for other reasons(bleeding......)Patients in the HR-PD group received externalized stent of the Wirsung duct.

关键词： High risk fistula pancreatic anastomosis pancreaticoduodenectomy(PD) total pancreatectomy(TP)

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

Sengstaken-Blakemore tubes:a rescue system during liver transplantation

引用

Hepatobiliary Surgery and Nutrition 2022年第1期11卷 171-172页

作者： Antonio Cubisino fabrizio Panaro Division of General Minimally Invasive and Robotic SurgeryUniversity of Illinois at ChicagoChicagoILUSA Division of HBP Surgery and Transplantation Department of SurgeryHôpital Saint EloiCHU-MontpellierMontpellierFrance

A 52-year-old woman has undergone liver transplantation(LT)owing to fulminant viral hepatitis,MELD *** first cadaveric graft allocated was a large-for-size *** was performed with a piggyback side-to-side cavocaval *** the end of the procedure,the removal of the abdominal retractor produced,due to a narrow ribcage,a caval compression with liver congestion because of a reduced caval outflow.

关键词： liver anastomosis graft

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

Use of robotics in liver donor right hepatectomy

引用

Hepatobiliary Surgery and Nutrition 2018年第2期7卷 154-155页

作者： fabrizio Panaro Giuliano Testa Division of Transplantation Department of SurgeryMontpellier University Hospital-School of MedicineMontpellierFrance Annette C.and Harold C.Simmons Transplant Institute Baylor University Medical CenterDallasTXUSA

Thank you for inviting us to comment the review article entitled"Use of robotics in liver donor right hepatectomy"by Chen PD et al.(1),published on HBSN *** their interesting paper,the authors stated that despite the fact that minimally invasive surgery(MIS)has been documented with safety and feasibility in complex liver surgery the progress has been slow in regard to the application of MIS in donor graft *** surgeons have devoted themselves to develop pure MIS approach for donor hepatectomy,but the steep learning curve remains barrier for its wide *** authors suggest that the introduction or robotic assisted surgery may contribute to a wider acceptance of MIS as the technique of choice for live donor *** a great attention to donor selection and continuous improvement in donor care the risks of donor hepatectomy remain real and the complication rate not insignificant(2).Traditional open liver resection results in post-operative pain and in at least 30%of the cases these pains were attributed to abdominal wall trauma(1,2).For these reasons and with the aim of facilitating donor recovery,transplant surgeons have been exploring the possibility of routinely applying MIS to live donor *** bridge the gap between open and pure MIS donor procurement,hand-assisted laparoscopic surgery was initially introduced in the 90'.It was not until 2002 that Soubrane O presented the first two cases of pure laparoscopic left lateral living donor hepatectomy,followed in the years to come by several successful attempts to extend the procedure to the procurements of full left and right hepatic lobes(1-6).

关键词： routine donor stated

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

Design of hybrid-electric aircraft with fault-tolerance considerations

引用

Chinese Journal of Aeronautics 2023年第2期36卷 160-178页

作者： Valerio MARCIELLO Francesco OREFICE fabrizio NICOLOSI Danilo CILIBERTI Pierluigi DELLA VECCHIA Department of Industrial Engineering University of Naples"FedericoⅡ"Naples 80125Italy

The potential benefits of hybrid-electric or all-electric propulsion have led to a growing interest in this topic over the past *** design of propulsion systems and innovative configurations has been extensively discussed in literature,but steps towards higher levels of technological readiness,optimisation algorithms based on reliable weight estimation and simulationbased mission analysis are *** paper focuses on the integration of a method for evaluating the lateral-directional controllability of an aircraft within a design chain that integrates aero-propulsive interactions,accurate modelling of the fuel system,and mid-fidelity estimation of the structural ***,the present work proposes a strategy for powerplant management in scenarios with an inoperative chain *** of hybrid-electric propulsion on the design of the vertical tail plane are evaluated involving the analysis of multiple failure scenarios and certification *** proposed application concerns a commuter aircraft.

关键词： Distributed electric propulsion Failure management Fault-tolerance analysis Hybrid-electric aircraft Lateral-directional controllability

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

Circumferential mucosal dissection and esophageal perforation in a patient with eosinophilic esophagitis

引用

World Journal of Gastroenterology 2008年第5期14卷 803-804页

作者： Gennaro Liguori Maurizio Cortale fabrizio Cimino Michele Sozzi Department of General and Thoracic Surgery Cattinara Hospital Trieste 34149 Italy Service of Gastroenterology Cattinara Hospital Trieste 34149 Italy

A young man with a previous history of episodes of mild solid food dysphagia was admitted with a total dysphagia. The esophagogastroduodenoscopy (EGDS) showed an extensive disruption of mucosal layer with a cul-de-sac in the lower part of the esophagus. Soon after the procedure, the patient suffered from an acute chest pain and subsequent CT scan demonstrated an intramural circumferential dissection of thoracic esophagus, and a mediastinal emphysema. An emergency right thoracotomy was performed, followed by a total esophagectomy with esophagogastroplasty and jejunostomy. The histopathology confirmed that mucosal and submucosal layers were circumferentially detached from muscular wall and showed an eosinophilic infiltration of the whole organ with necrosis and erosions of mucosal, submucosal and muscular layers. The diagnosis was esophageal perforation in eosinophilic esophagitis.

关键词： Thoracic surgery emergency Esophagea perforation Eosinophilic esophagitis Esophagea mucosal dissection Esophagus surgery

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

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：