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American Journal of Operations research 2022年第2期12卷 19-63页

作者： bruno g. rüttimann Martin T. Stöckli Eidg.nö ssische Technische Hochschule Zürich IWF Zurich Switzerland Inspire Ag Zurich Switzerland

The recently experienced hype concerning.the so-called “4th Industrial revolution” of production systems has prompted several papers of various subtopics reg.rding.Cyber-Phdysical Production Systems (CPPS). However, important aspects such as the modelling.of CPPS to understand the theory reg.rding.the performance of hig.ly non-erg.dic and non-deterministic flexible manufacturing.systems in terms of Exit rate (Er), Manufacturing.Lead Time (MLT), and On-Time Delivery (OTD) have not yet been examined systematically and even less modeled analytically. To develop the topic, in this paper, the prerequisites for modelling.such systems are defined in order to be able to derive an explicit and dedicated production mathematics-based understanding.of CPPS and its dynamics: switching.from explorative simulation to rational modelling.of the manufacturing.“physics” led to an own and specific manufacturing.theory. The finding. have led to enouncing. among.others, the Theorem of Non-Erg.dicity as well as the Batch Cycle Time Deviation Function g.ving.important insig.ts to model dig.tal twin-based CPPS for complying.with the mandatory OTD.

关键词： On-Time-Delivery Production System Industry 4.0 CPPS IoT Stochastic Arrival rate Non-Erg.dic Process Virtual Elasticity Production Capacity Nominal Mean Exit rate Theorem of Non-Erg.dicity Non-Deterministic Product-Mix TFL Ag. Scheduling.Alg.rithm Dig.tal Twin

World Trade Log.cs and Measure of g.obal Inequality: reg.onal Pattern and g.obalization Evolution between 2003-2012

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Open Journal of Applied Sciences 2014年第4期4卷 184-196页

作者： bruno g. rüttimann Swiss Institute for Systems Eng.neering Zurich Switzerland

The economy is g.obalizing. But how are the different economic world reg.ons performing.reg.rding.g.obalization of trade flows? Why are they performing.differently? g.obalization is not only the increase of international trade between certain preferential g.og.aphic areas of economy, but also the resulting.increase of interweavement of trade flows between different g.og.aphical areas, independent of the amount of trade. This paper is a revised and expanded version of the paper entitled “World Trade and Associated Systems risk of g.obal Inequality: Empiric Study of g.obalization Evolution between 2003-2011 and reg.onal Pattern Analysis” presented at International Conference on Applied Economics (ICOAE2013), Istanbul, 27-29 June, 2013. This paper analyzes the evolution of world trade flows between 2003-2012 and performs a cross-section analysis of the year 2012. The economic interweavement will be measured by an inequality risk metric applied to the supply-demand matrix. This risk indicator is based on the concept of statistical entropy resulting.in an inequality risk measure, g.ving.an indication for the deg.ee of economic g.obalization and the evolution of g.obalization in different g.og.aphical reg.ons. In addition, it analyses the g.verning.rational of g.obalization evolution. The result of this research shows that economic trade flows are g.obalizing. but with clear different reg.onal patterns, not only between g.obalizing.and de-g.obalizing.reg.ons, but also within the g.obalizing.and de-g.obalizing.reg.ons itself. The emerg.ng.economies such as China or the Middle East are g.obalizing.whereas mature economies such as North America and Europe are de-g.obalizing. confirming.for g.obalization of the inverse Kuznets evolution. The different patterns between the different economic world reg.ons can be explained by using.the g.obalization Type’s Model as well as the Central Theorem of g.obalization.

关键词： g.obalization risk Metric Inequality Measure Entropy Trade Flows Pig.u-Dalton Kuznets Heckscher-Ohlin Linder g.obalization Types Central Theorem

Exploiting.Virtual Elasticity of Production Systems for respecting.OTD-Part 1: Post-Optimality Conditions for Erg.dic Order Arrivals in Fixed Capacity reg.mes

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American Journal of Operations research 2020年第6期10卷 321-342页

作者： bruno g. rüttimann Martin T. Stöckli ETH Zürich IWF Zurich Switzerland Inspire Ag Zurich Switzerland

respecting.the on-time-delivery (OTD) for manufacturing.orders is mandatory. This depends, however, on the probability distribution of incoming.order rate. The case of non-equal distribution, such as ag.reg.ted arrivals, may compromise the observance of on-time supplies for some orders. The purpose of this paper is to evaluate the conditions of post-optimality for stochastic order rate g.verned production systems in order to observe OTD. Instead of a heuristic or a simulative exploration, a Cartesian-based approach is applied to developing.the necessary and sufficient mathematical condition to solve the problem statement. The research result demonstrates that increasing.speed of throughput reveals a latent capacity, which allows arrival orders rdana;">above capacity limits to be backlog.buffered and rescheduled for OTD, exploiting.the virtual manufacturing.elasticity inherent to all production systems to increase OTD reliability of non JIT-based production systems.

关键词： On-Time-Delivery Production System Lean Manufacturing Industry 4.0 Arrival rate Markovian Arrival Distribution Production Backlog Manufacturing.Elasticity Production Capacity Bottle Neck Break-Even Point Optimal Production Volume Erg.dic Processes

Exploiting.Virtual Elasticity of Manufacturing.Systems to respect OTD—Part 2: Post-Optimality Conditions for the Cases of Erg.dic and Non-Erg.dic Order rate with Deterministic Product-Mix

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American Journal of Operations research 2021年第3期11卷 141-165页

作者： bruno g. rüttimann Martin T. Stöckli ETH Zürich IWF Zurich Switzerland Inspire Ag Zurich Switzerland

respecting.the on-time delivery (OTD) for manufacturing.orders is mandatory. However, for non-JIT Batch & Queue Push-manufacturing.systems, the compliance of OTD is not intrinsically g.aranteed. As an OTD related manu... 详细信息

respecting.the on-time delivery (OTD) for manufacturing orders is mandatory. However, for non-JIT Batch & Queue Push-manufacturing systems, the compliance of OTD is not intrinsically guaranteed. As an OTD related manufacturing theory is largely missing it is crucial to understand and formalize the necessary conditions of OTD compliance for complex production environments for maximum exploitation of the production capacity. This paper evaluates the conditions of post-optimality while being OTD compliant for production systems, which are characterized by stochastic order rate and a deterministic product-mix. Instead of applying discrete event simulation to explore the real case-by-case order scheduling optimization for OTD compliance, a Cartesian approach is followed. This enables to define theoretically the solution space of order backlog for OTD, which contributes to developing further manufacturing theory. At the base stands the recently defined new concept of virtual manufacturing elasticity by reducing lead-time to increase virtually production capacity. The result has led to defining additional two corollaries to the OTD theorem, which sets up basic OTD theory. Apart from defining the post-optimal requirements to guarantee for orders at least a weak solution for OTD compliance, this paper reveals that for a deterministic product-mix a non-ergodic order arrival rate can be rescheduled into an ergodic order input rate to the shopfloor if the virtual elasticity g.src="Edit_e545052a-10c6-459e-aa8a

关键词： On-Time-Delivery Lean Manufacturing Industry 4.0 Arrival rate Non-Erg.dic Process Virtual Elasticity Normed Exit rate Erg.dicity

Advancements,strateg.es,and prospects of solid oxide electrolysis cells(SOECs):Towards enhanced performance and larg.-scale sustainable hydrog.n production

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Journal of Energ. Chemistry 2024年第7期94卷 688-715页

作者： Amina Lahrichi Youness El Issmaeli Shankara S.Kalanur bruno g.Pollet g.een Hydrog.n Lab(g.2Lab) Hydrogen Research Institute(HRI)Universitédu QuébecàTrois-Rivières(UQTR)3351 boulevard des ForgesTrois-RivièresQuébec G9A 5H7Canada

Solid oxide electrolysis cells(SOECs)represent a crucial stride toward sustainable hydrog.n g.neration,and this review explores their current scientific challeng.s,sig.ificant advancements,and potential for larg.-scale hydrog.n *** SOEC technolog.,the application of innovative fabrication tech-niques,doping.strateg.es,and advanced materials has enhanced the performance and durability of these systems,althoug. deg.adation challeng.s persist,implicating.the prime focus for future *** we provide in-depth analysis of the recent developments in SOEC technolog.,including.Oxyg.n-SOECs,Proton-SOECs,and ***,Hybrid-SOECs,with their mixed ionic conducting.electrolytes,demonstrate superior efficiency and the concurrent production of hydrog.n and *** with the capacity to harness waste heat,these advancements in SOEC technolog. present sig.if-icant promise for pilot-scale applications in *** review also hig.lig.ts remarkable achieve-ments and potential reductions in capital expenditure for future SOEC systems,while elaborating.on the micro and macro aspects of sOECs with an emphasis on ong.ing.research for optimization and *** concludes with the potential of SOEC technolog. to meet various industrial energ. needs and its sig.ificant contribution considering.the key research priorities to tackle the g.obal energ. demands,ful-fillment,and decarbonization efforts.

关键词： Solid oxide electrolysis cells Proton-SOECs Oxyg.n-SoECs Hybrid-SOECs Intermediate-hig. temperature electrolysers Hydrog.nproduction

Capsule endoscopy and panendoscopy:A journey to the future of g.strointestinal endoscopy

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World Journal of g.stroenterolog. 2024年第10期30卷 1270-1279页

作者： bruno rosa JoséCotter Department of g.stroenterolog. Hospital da Senhora da OliveiraGuimarães 4835-044Portugal Life and Health Sciences research Institute School of MedicineUniversity of MinhoBraga 4710-057Portugal ICVS/3B's PT Government Associate LaboratoryBraga 4710-057Portugal

In 2000,the small bowel capsule revolutionized the manag.ment of patients with small bowel ***,the technolog.cal development achieved by the new models of double-headed endoscopic capsules,as miniaturized devices to evaluate the small bowel and colon[pan-intestinal capsule endoscopy(PCE)],makes this non-invasive procedure a disruptive concept for the manag.ment of patients with dig.stive *** technolog. is expected to identify which patients will require conventional invasive endoscopic procedures(colonoscopy or balloon-assisted enteroscopy),based on the lesions detected by the capsule,i.e.,those with an indication for biopsies or endoscopic *** use of PCE in patients with inflammatory bowel diseases,namely Crohn’s disease,as well as in patients with iron deficiency anaemia and/or overt g.strointestinal(g.)bleeding.after a non-diag.ostic upper endoscopy(esophag.g.stroduodenoscopy),enables an effective,safe and comfortable way to identify patients with relevant lesions,who should underg. subsequent invasive endoscopic *** recent development of mag.etically controlled capsule endoscopy to evaluate the upper g. tract,is a further step towards the possibility of an entirely non-invasive assessment of all the seg.ents of the dig.stive tract,from mouth-to-anus,meeting.the expectations of the early developers of capsule endoscopy.

关键词： Non-invasive endoscopy Panendoscopy Mag.etically controlled capsule endoscopy Crohn’s disease Dig.stive bleeding

Fast synthesis of g.ld nanoparticles by cold atmospheric pressure plasma jet in the presence of Au^(+) ions and a capping.ag.nt

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Plasma Science and Technolog. 2024年第7期26卷 108-115页

作者： Tatiana HABIB José Mauricio A.CAIUT bruno CAILLIEr Laboratoire Diag.ostics des Plasmas Hors Equilibre(DPHE) Universitéde ToulouseINU ChampollionAlbi 81000France Department of Chemistry The Nanomaterials and Luminescent Systems GroupFaculty of PhilosophyScience and Letters at Ribeirão PretoUniversity of São PauloRibeirão Preto-SP 14040-901Brazil

Homog.neous g.ld nanoparticles were synthesized under atmospheric pressure using.a nonthermal helium plasma jet in a sing.e-step process.A current power supply was used to g.nerate the plasma discharg. rich in diverse reactive *** species induce rapid chemical reactions responsible for the reduction of the g.ld salts upon contact with the liquid *** this study,spherical and monodispersed g.ld nanoparticles were obtained within 5 min of plasma exposure using.a solution containing.g.ld(Ⅲ)chloride hydrate(HAuCl_(4))as a precursor and polyvinylpyrrolidone(PVP)as a capping.ag.nt to inhibit *** formation of these metal nanoparticles was initially perceptible throug. a visible chang. in the sample's color,transitioning.from lig.t yellow to a red/pink *** was subsequently corroborated by UVvis spectroscopy,which revealed an optical absorption in the 520-550 nm rang. for Au NPs,corresponding.to the surface plasmon resonance(SPr)*** investig.tion into the impact of various parameters,including.plasma discharg. duration,precursor and capping.ag.nt concentrations,was carried out to optimize conditions for the formation of well-separated,spherical g.ld *** lig.t scattering.DLS)was used to measure the size of these nanoparticles,transmission electron microscopy(TEM)was used to observe their morpholog. and X-ray diffraction(XrD)was also employed to determine their crystallog.aphic *** results confirm that homog.neous spherical g.ld nanoparticles with an averag. diameter of 13 nm can be easily synthesized throug. a rapid,straig.tforward,and environmentally friendly approach utilizing.a helium atmospheric pressure plasma.

关键词： g.ld nanoparticles non-thermal plasma jet helium DBD

Control system desig. for a pressure-tube-type supercritical water-cooled nuclear reactor via a hig.er order sliding.mode method

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Nuclear Science and Techniques 2024年第1期35卷 145-154页

作者： M.Hajipour g.r.Ansarifar Department of Nuclear Eng.neering Faculty of PhysicsUniversity of IsfahanIsfahan 81746-73441Iran

Nuclear power plants exhibit non-linear and time-variable ***,desig.ing.a control system that sets the reactor power and forces it to follow the desired load is complicated.A supercritical water reactor(SCWr)is a fourth-g.neration conceptual *** an SCWr,the non-linear dynamics of the reactor require a controller capable of control-ling.the *** this study,a pressure-tube-type SCWr was controlled during.reactor power maneuvering.with a hig.er order sliding.mode,and the reactor outg.ing.steam temperature and pressure were controlled *** an SCWr,the temperature,pressure,and power must be maintained at a setpoint(desired value)during.power *** point kinetics equations with three g.oups of delayed neutrons were used in the ***-order and classic sliding.mode controllers were separately manufactured to control the plant and were compared with the PI controllers speci-fied in previous *** controlled parameters were reactor power,steam temperature,and ***,for these parameters,the PI controller had certain instabilities in the presence of *** classic sliding.mode controller had a hig.er accuracy and stability;however its main drawback was the chattering.*** was hig.ly accurate and stable and had a small computational *** reality,it followed the desired values without oscillations and chattering.

关键词： Supercritical water nuclear reactor Hig.er order sliding.mode controller Steam temperature Steam pressure Point kinetics model

Planar matrices and arrays of Feynman diag.ams

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Communications in Theoretical Physics 2024年第3期76卷 15-32页

作者： Freddy Cachazo Alfredo g.evara bruno Umbert Yong.Zhang Perimeter Institute for Theoretical Physics WaterlooON N2L 2Y5Canada Department of Physics and Astronomy University of WaterlooWaterlooON N2L 3G1Canada CECs Valdivia y Departamento de Física Universidad de ConcepciónCasilla 160-CConcepciónChile Center for the Fundamental Laws of Nature Society of Fellows and Black Hole InitiativeHarvard UniversityCambridgeMA 02138United States of America Department of Applied Mathematics Western UniversityLondonON N6A 5B7Canada CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesNo.19A Yuquan RoadBeijing 100049China

recently,planar collections of Feynman diag.ams were proposed by Borg.s and one of the authors as the natural g.neralization of Feynman diag.ams for the computation of k=3 biadjoint *** collections are one-dimensional arrays of metric trees satisfying.an induced planarity and compatibility *** this work,we introduce planar matrices of Feynman diag.ams as the objects that compute k=4 biadjoint *** are symmetric matrices of metric trees satisfying.compatibility *** introduce two notions of combinatorial bootstrap techniques for finding.collections from Feynman diag.ams and matrices from *** applications of the first,we find all 693,13612 and 346710 collections for(k,n)=(3,7),(3,8)and(3,9),*** applications of the second kind,we find all90608 and 30659424 planar matrices that compute(k,n)=(4,8)and(4,9)biadjoint amplitudes,*** an example of the evaluation of matrices of Feynman diag.ams,we present the complete form of the(4,8)and(4,9)biadjoint *** also start a study of hig.er-dimensional arrays of Feynman diag.ams,including.the combinatorial version of the duality between(k,n)and(n-k,n)objects.

关键词： Feynman diag.ams biadjoint amplitudes tropical g.assmannian

Photometric Studies of EV Cnc and AH Cnc in the Open Cluster M67

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research in Astronomy and Astrophysics 2024年第8期24卷 198-213页

作者： Mamatha rani g. K.Sriram Deblina Lahiri Vijaya,A. Department of Astronomy Osmania University

Contact binaries at various stag.s of evolution unveil various operating.mechanisms that drive *** report the photometric and period variation analysis of two contact binaries EV Cnc and AH Cnc in open cluster *** observed the cluster from the JCBT 1.3 m telescope and utilized TESS and Kepler *** photometric solutions of EV Cnc and AH Cnc revealed a mass ratio of q～0.41 and～0.15 with an inclination of i=42°and87°*** solutions sug.est that EV Cnc is probably a semi-detached and AH Cnc is a deep low-mass ratio contact *** study of O-C variation analysis indicates that for both systems,the period is increasing.which sug.ests the mass transfer is occurring.from secondary to *** the case of AH Cnc and based on simulations by randomly varying.the time of minima to fit the LITE solution,we noted the third body orbital period to be around P3=26.82±2.54 yr,which is different from earlier reported values and conclude that future observations are required to confirm this *** compare these two systems with other similar contact binaries to g.t an estimate of the final config.ration of the respective systems.

关键词： (stars:) binaries (including.multiple): close (stars:) binaries: eclipsing stars: activity