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A new modeling approach of pressure waves at the inlet of internal combustion engines

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journal of Thermal Science 2011年第2期20卷 181-188页

作者： David Chalet Alexandre Mahé jean-Franois Hétet jérme migaud Internal Combustion Engine Team Laboratory of Fluid Mechanics UMR CNRS 6598 Ecole Centrale de Nantes Advanced development Mann+Hummel France

This paper presents a new model used to describe the propagation of pressure waves at the inlet systems of internal combustion engine. In the first part, an analogy is made between the compressible air in a pipe and a mechanical ideal mass damper spring system. A new model is then presented and the parameters of this model are determined by the use of an experimental setup (shock tube test bench). With this model, a transfer function is defined in order to link directly the pressure and the air mass flow rate. In the second part, the model is included into an internal combustion engine simulation code. The results obtained with this code are compared to experimental ones which are measured on a one-cylinder engine test bench. This last one is driven by an electric motor in order to study only the effect of the pressure waves on the engine behavior. A good agreement is obtained between the experimental results and the numerical ones and the new approach is an alternative method for modeling the pressure wave phenomena in an internal combustion engine manifold.

关键词： gas dynamics pressure wave compressible flow frequency analysis transfer function internal combustion engine

Application of None Cement Aluminamagnesia Gunning Mix with Special High Reactive Alumina in Steel Ladles

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China's Refractories 2020年第1期29卷 20-26页

作者： jérome KIENNEMANN Paul SOLER johnson LEE Alteo Gardanne 20062France

During calcining the aluminum hydroxide according to the Bayer process in a rotary kiln,the process of incomplete conversion to alpha alumina by soft calcination leads to a special intermediate alumina product containing microcrystalline of primary crystal alpha alumina particles less than 0.4μm,and other alumina phases with finer microcrystalline of less than 0.2μm *** special alumina powder has similar properties to silica fume or clay,such as high surface area and reactivity,fast wetting,low water demand and high *** can partially or completely replace silica fume and clay in dry gunning *** works towards improving the high temperature resistance of the gunning material matrix as well as the corrosion resistance and service life of the gunning *** application results show that:the ladle cementfree alumina-magnesia dry gunning mix with this special alumina sub-micro powder,compared with traditional dry gunning materials,has lower rebound loss(<10%),better adhesion rate,higher corrosion resistance and peeling resistance;and it can replace the veneering casting repair to achieve the similar performance.A further improvement goal is to replace the initial casting linings,thus this concept will give a new revolution to the monolithic steel ladles.

关键词： none cement gunning mix special reactive alumina monolithic steel ladles

Correction to:On the genetic distinctiveness of tailorbirds(Cisticolidae:Orthotomus)from the South-east Asian mainland with the description of a new subspecies

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Avian Research 2018年第4期9卷 394-395页

作者： jérome Fuchs Dario Zuccon Institut de Systématique EvolutionBiodiversité UMR7205 CNRS MNHN UPMC EPHESorbonne UniversitéMuséum National d’Histoire NaturelleCP 5157 rue Cuvier75231 Paris Cedex 05France

Unfortunately, the original article (Fuchs and Zuccon 2018) contained some errors. The Tables 1, 2 and Additional file 1: Table S2 were displayed incorrectly. The correct tables can be found below.

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Parameter study on numerical simulation of corner separation in LMFA-NACA65 linear compressor cascade

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Chinese journal of Aeronautics 2017年第1期30卷 15-30页

作者： Gao Feng Ma Wei Sun jinjing jérome Boudet Xavier Ottavy Liu Yangwei Lu Lipeng Shao Liang National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics School of Energy and Power Engineering Beihang University Beijing 100191 China Department of Mechanical Engineering Sciences University of Surrey Guildford GU2 7XH UK School of Aeronautics and Astronautics Shanghai Jiao Tong University Shanghai 200240 China Laboratoire de Mecanique des Fluides et d'Acoustique Ecole Centrale de Lyon Ecully 69134 France

Large-eddy simulation（LES） is compared with experiment and Reynolds-averaged Navier-Stokes（RANS）, and LES is shown to be superior to RANS in reproducing corner separation in the LMFA-NACA65 linear compressor cascade, in terms of surface limiting streamlines,blade pressure coefficient, total pressure losses and blade suction side boundary layer profiles. However, LES is too expensive to conduct an influencing parameter study of the corner *** approach, despite over-predicting the corner separation, gives reasonable descriptions of the corner separated flow, and is thus selected to conduct a parametric study in this paper. Two kinds of influencing parameters on corner separation, numerical and physical parameters, are analyzed and discussed： second order spatial scheme is necessary for a RANS simulation; incidence angle and inflow boundary layer thickness are found to show the most significant influences on the corner separation among the parameters studied; unsteady RANS with the imposed inflow unsteadiness（inflow angle varying sinusoidally with fluctuating amplitude of 0.92°） does not show any non-linear effect on the corner separation.

关键词： Corner separation Influencing parameter LES Linear compressor cascade RANS

Intelligent modular design with holonic fuzzy agents

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Advances in Manufacturing 2021年第1期9卷 81-103页

作者： Egon Ostrosi Alain-jérome Fougères Zai-Fang Zhang josip Stjepandic University of Technology of Belfort Montbé1iard ERCOS/ELLIADD EA4661University Burgundy-Franche-Comté90010 BelfortFrance School of Engineering ECAM RennesBruz CS 2912835091 RennesFrance School of Mechatronic Engineering and Automation Shanghai UniversityShanghai 200240People's Republic of China PROSTEP AG Dolivostr.1164293 DarmstadtGermany

Presently,modular designs use various technologies accompanied by multiple *** no integral solution is known,a plethora of approaches is used to resolve this trans disciplinary challenge,often by using local ***,the effective utilization of multiple models requires proper integration for them to work together as a cohesive *** requirement calls for the development of intelligent models and tools that can be used for the development of intelligent modular *** design based on these intelligent models and tools is called intelligent modular *** modular design requires to be considered both dynamically and holistically by combining customer requirements,product functions,solutions,service specifications,and their fuzziness in order to structure a product into intelligent *** paper proposes the use of holonic fuzzy agents to fulfill both the properties of intelligent models and the requirements of intelligent modular *** set of fuzzy function agents and their corresponding fuzzy solution agents are found from customization of the product-service system in the fuzzy function agent-fuzzy solution agent *** the basis of attractor agent recognition,the fuzzy function and fuzzy solution agents interact to form the holonic fuzzy module *** of holonic fuzzy module agents,which is the fundamental property of the holonic structure,is also characterized by vertical and horizontal *** flexibility and agility of the software agent make the holonic structure of intelligent modules *** application illustrates the proposed intelligent modular design.

关键词： Modularity Modular design Intelligent design Holonic agents Product platform Product variety

Low-intensity extracorporeal shock wave therapy for Peyronie’s disease:a single-center experience

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Asian journal of Andrology 2022年第1期24卷 45-49页

作者： Maher Abdessater William Akakpo Anthony Kanbar jérome Parra Thomas Seisen Emmanuel Chartier-Kastler Sarah j Drouin Morgan Roupret APHP-Sorbonne University PitiéSalpêtrièreAcademic Urology Unit83 bvd HopitalParis 75013France

The aim of this article is to assess the outcomes of a low-intensity extracorporeal shock wave therapy(LiESWT)protocol for the treatment of Peyronie’s disease(PD).Patients treated for PD were prospectively recorded,and data were retrospectively ***,characteristics of fibrous plaques,concomitant treatments,International Index of Erectile Function(IIEF-5),Lue score,and pain score on Likert scale were *** in acute phase of PD and an angulation of<40°were *** protocol consisted of 6 weekly sessions of 4000 pulses each,applied from different directions,with a maximal power of 20 W and 8 Hz *** included 39 patients(median age:56.8 years,interquartile range[IQR]:35.8–62.2 years).The median number of sessions received per patient was *** treatment,the median Lue score decreased from 6.8 initially to 3.3(P=0.003),the median Likert pain score dropped from 1.8 to 0.7(P=0.004),the median plaque size was reduced from 2 cm to 1.2 cm(P=0.08),and the median penile curvature diminished from 31°to 17°(P=0.07).On univariate and multivariate analysis,the only predictors of success were younger age(odds ratio[OR]=0.95,P=0.03 and OR=0.91,P=0.04,respectively)and concomitant use of phosphodiesterase-5 inhibitors(PDE5i;OR=0.92,P=0.02 and OR=0.93,P=0.01,respectively).LiESWT had a favorable impact on Lue score and notably penile pain,curvature,plaque size,and erectile function in patients treated for PD during the early inflammatory phase,with no side *** age and concomitant use of PDE5i were the only success predictors.

关键词： erectile dysfunction extracorporeal shock wave therapy Peyronie’s disease piezoelectric waves

Is it time to rethink the Alzheimer's disease drug development strategy by targeting its silent phase?

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Neural Regeneration Research 2018年第2期13卷 224-225页

作者： Benoit Souchet Mickael Audrain Baptiste Billoir Laurent Lecanu Satoru Tada jérome Braudeau AgenT 4 rue Pierre-Fontaine91058 EVRY CedexFrance

Alzheimer＇s disease （AD） is the most frequent cause of dementia in the western world. In clinical terms, AD is characterized by progres- sive cognitive decline that usually begins with memory impairment. As the disease progresses, AD inevitably affects all intellectual functions including executive functions, leading to complete dependence for basic activities of daily life and premature death.

关键词： AD Is it time to rethink the Alzheimer’s disease drug development strategy by targeting its silent phase

Apples to oranges:environmentally derived,dynamic regulation of serotonin neuron subpopulations in adulthood?

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Neural Regeneration Research 2025年第9期20卷 2596-2597页

作者： Christopher j.O’Connell Matthew j.Robson Department of Genetics College of MedicineHarvard UniversityBostonMAUSA james L.Winkle College of Pharmacy Division of Pharmaceutical SciencesUniversity of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program College of MedicineUniversity of CincinnatiCincinnatiOHUSA

Traumatic brain injury(TBI)is a public health problem with an undue economic burden that impacts nearly every age,ethnic,and gender group across the globe(Capizzi et al.,2020).TBIs are often sustained during a dynamic range of exposures to energetic environmental forces and as such outcomes are typically heterogeneous regarding severity and pathology(Capizzi et al.,2020).

关键词： sustained orange dynamic

Dual antibiotic loaded bone cement in patients at high infection risks in arthroplasty: Rationale of use for prophylaxis and scientific evidence

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World journal of Orthopedics 2021年第3期12卷 119-128页

作者： Christof Ernst Berberich jérome josse Frédéric Laurent Tristan Ferry Department of Medical Training Heraeus Medical GmbHWehrheim 612173HessenGermany Institut des Sciences Pharmaceutiques et Biologiques de Lyon(ISPB) International Center for Research in InfectiologyInserm U1111CNRS UMR5308ENS de LyonUCBL1Lyon 69008France Interregional Reference Center for the Management of Complex Osteo-Articular Infections Hospices Civils de LyonLyon 69008France Bacteriology Laboratory Institute of Infectious AgentsCroix-Rousse HospitalHospices Civils de LyonLyon 69008France Infectious and Tropical Diseases Department Croix-Rousse HospitalHospices Civils de LyonLyon 69008France

In view of the demographic changes and projected increase of arthroplasty procedures worldwide,the number of prosthetic joint infection cases will naturally ***,in order to counteract this trend more rigid rules and a stricter implementation of effective preventive strategies is of highest *** the absence of a"miracle weapon"priorities should lie in evidence-based measures including preoperative optimization of patients at higher infection risks,the fulfilment of strict hygiene rules in the operating theatre and an effective antibiotic prophylaxis *** of a"one size fits all"philosophy,it has been proposed to adjust the antibiotic prophylaxis protocol to major infection risks taking into account important patient-and procedure-related risk factors.A stronger focus on the local application mode via use of high dose dual antibioticloaded bone cement in such risk situations may have its advantages and is easy to apply in the *** more potent antimicrobial growth inhibition in vitro and the strong reduction of the prosthetic joint infection rate in risk for infection patients with aid of dual antibiotic-loaded bone cement in clinical studies align with this hypothesis.

关键词： Prosthetic joint infection Antibiotic-loaded bone cement Single low dose antibiotic-loaded bone cement Dual high dose antibiotic-loaded bone cement Antibiotic prophylaxis Risk-for-infection patients