bluuebunny/crossref_metadata_2025 huggingface dataset:
Beamformed Envelope Spectrum of acoustic signals for bearing diagnostics under varying speed conditions
Authors: Mauricio Alexandre
Published: November 2023

Rolling element bearings are critical components in rotating machinery. Early damage detection methods are usually based on vibration signals from accelerometers. Microphones provide an interesting alternative, as they acquire system level information and could allow reducing the number
of sensors. However, the bearing signature is mixed in these signals with noise coming from other nearby sources. Beamforming methods can enhance the targeted bearing signature while suppressing the contributions of other noise sources in the environment. The bearing impulses related to the
localized surface defects are function of speed, and thus under varying speed conditions become nonstationary. Angular resampling based methods are therefore needed to compensate for the speed fluctuations in order to detect bearing damages. The goal of this paper is to propose a method for
bearing diagnostics under varying speed conditions using an array of microphones and an encoder. The method is based on angular resampling of the microphone signals in function of the shaft speed and enhancing them using delay-sum beamforming based on the known positions of the microphones
relative to the tested bearing. The method is validated on an experimental dataset acquired at a KU Leuven bearing test rig, under varying rotating speed conditions.
Evolutionary strategy to optimize sonic black hole profiles in duct terminations
Authors: Guasch Oriol
Published: November 2023

Sonic black holes (SBH) at duct ends constitute a particular type of anechoic termination. Acoustic waves get slowed down by means of a set of rings separated by cavities, whose inner radii diminish following a power law. Ideally, such design produces no wave reflection. In practice,
however, this is not possible though the reflection coefficient remains low for a broadband frequency range. In this work, an evolutionary strategy (ES) is used to optimize the shape of SBH profiles and to try to improve the results of the standard power-law design. We test several cost functions
for the reflection coefficient and impose constraints on the radii to fasten convergence. Different optimization problems are addressed. The first one is to determine the optimum exponent for the classical power-law profile. In the second one, the inner ring radii are only imposed to be monotonically
decreasing from the SBH entrance. This results in new designs that overcome the performance of the optimum power-law profile at almost all frequencies. To perform the computations, we use a transfer matrix method for the SBH and resort to a derandomized ES with covariance matrix adaptation,
which can easily deal with multiobjective optimization at a very reasonable computational cost.
Physics-informed neural networks for solving the Helmholtz equation
Authors: Schmid Johannes
Published: November 2023

Discretization-based methods like the finite element method have proven to be effective for solving the Helmholtz equation in computational acoustics. However, it is very challenging to incorporate measured data into the model or infer model input parameters based on observed response
data. Machine learning approaches have shown promising potential in data-driven modeling. In practical applications, purely supervised approaches suffer from poor generalization and physical interpretability. Physics-informed neural networks (PINNs) incorporate prior knowledge of the underlying
partial differential equation by including the residual into the loss function of an artificial neural network. Training the neural network minimizes the residual of both the differential equation and the boundary conditions and learns a solution that satisfies the corresponding boundary value
problem. In this contribution, PINNs are applied to solve the Helmholtz equation within a two-dimensional acoustic duct and mixed boundary conditions are considered. The results show that PINNs are able to solve the Helmholtz equation very accurately and provide a promising data-driven method
for physics-based surrogate modeling.
Bayesian approach for acoustic boundary admittance estimation
Authors: Schmid Jonas M.
Published: November 2023

It is essential for accurate acoustic predictions to represent the boundary properties of all interacting surfaces as accurately as possible. The acoustic boundary properties can be fully characterized by the complex-valued acoustic boundary admittance. Yet, it is a challenging task
to determine this quantity in-situ, without measuring in laboratory conditions. A Bayesian approach is presented to estimate the acoustic boundary admittance based on a limited number of noisy sound pressure measurements at random observation points inside an acoustic domain. The sound pressure
data are obtained utilizing the finite element method, which also serves as forward model in the inference process. This enables the application of the framework to arbitrarily shaped acoustic domains such as a car cabin. It is the benefit of the Bayesian approach, that it results in a probabilistic
distribution for the boundary admittance and thus allows for uncertainty quantification of the estimation. The results prove, that the combined framework consisting of a FEM forward model and a Bayesian approach to solve the inverse problem is well-suited for the inference of the acoustic
boundary admittance from noisy observations. It is particularly beneficial, if information about the uncertainty is desired.
Vibration mitigation using finite graded metamaterials: a rod with attached local resonators
Authors: Ihsan Ali
Published: November 2023

The paper concerns the analysis of vibration transmission and mitigation in a finite rod performing axial vibrations with attached multiple damped resonators. The resonators are not assumed to be periodically spaced or to have similar dynamic properties. The behaviour is analysed in
terms of waves travelling between the discontinuities. Reflection and transmission coefficients of the rod with one local resonator attached are utilised in the analysis. Values of these coefficients for each of the attached resonators, along with the boundary conditions and field transfer
function, are used to derive analytical expressions for the displacement of the finite rod at any point. Once the displacement is determined, the transmission loss is calculated. Moreover, the eigenfrequencies of the graded metamaterial finite rod are identified using the phase closure principle.
The influence of the mass, the damping and the location of the resonators on the vibration attenuation are investigated. Numerical examples are presented. Good agreement is noted between the results of the analytical studies and finite element simulations in COMSOL. It is shown that the graded
metamaterial rod can provide better vibration attenuation as compared to the conventional periodic metamaterial.
Reconstruction of Substructural Transfer Functions with Operational Responses Using Deep Learning Approach
Authors: Lee Dooho
Published: November 2023

This study aims to develop an identification method of substructural FRFs without disassembling the whole system into substructures by measuring operational responses at input and target points. To identify the FRFs between input and target points in a substructure, the relationship
of operational responses in the whole system is re-formulated. Then, by measuring operational responses, the FRFs can be identified by a data-driven approach. Deep learning neural network models are introduced to reconstruct the transfer function. To validate the proposed formulation, a test
structure that consists of two substructures and three spring joints is fabricated. Operational responses of the test structure are measured when an exciter randomly excites the test structure. Dense neural networks (DNNs) are developed to reconstruct the FRFs between the joints and target
points. The identified FRFs are compared with those of directly measured substructural FRFs to estimate the performance of the proposed formulation.
Numerical Simulation of Aeroacoustics Generated by Flow around 30P30N High-lift Aerofoil using Hybrid CFD/BEM approach
Authors: Mori Masaaki
Published: November 2023

In this study, we have performed the acoustic simulation generated by the flow around the 30P30N airfoil with a slat and a flap by means of Boundary element Method using quadrupole sources extracted from the unsteady CFD simulations. The CFD simulations are performed using Ansys Fluent
with LES Dynamic Model, and compressible flow fields have been solved. The attack angles of the airfoil are 5.5 and 9.5 degree. When the BEM calculation for the acoustic propagation was performed, the FMM (Fast Multipole Method) and FMBEM were used to calculate quickly the contributions from
the quadrupole sources and acoustic propagation, reflection and diffraction on the boundaries, those are the walls of the 30P30N airfoil. The results of the acoustic simulations show a relatively good agreement with the experimental data and other researchers' simulation results. The directivities
of the acoustic pressure for the primary peak frequency are shown and they depend on the attack angle of the airfoil. The far-field SPL also depends on the attack angle of the airfoil and decreases as the attack angle increases. We have also investigated the quadrupole sources in frequency
domain, and the results showed that the quadrupole sources at far-field SPL peak frequencies near the wake of slat and the suction side of the main element of the airfoil are stronger than those in other regions.
On the effects of a nonlinear boundary with cubic stiffness on the reflection coefficients of time harmonic flexural waves in an Euler-Bernoulli beam
Authors: Abdi Moein
Published: November 2023

The reflection of time-harmonic flexural waves in a thin Euler-Bernoulli beam incident on a nonlinear boundary stiffness is studied. A set of waves at frequencies an integer multiple of a fundamental frequency is incident on the boundary, giving rise to an infinite set of reflected
propagating and nearfield waves whose amplitudes are defined in terms of reflection coefficients. Equations for the wave amplitudes are truncated and solved numerically using the harmonic balance method. The boundary nonlinearity is assumed to be cubic with no quadratic term. Emphasis is placed
on essential nonlinearity for which the linear stiffness is zero. This case is of interest due to stronger nonlinear effects being produced. The case with one incident propagating wave and two reflected propagating and nearfield waves is considered. It is seen that vibrational energy leaks
from the 1st harmonic to the 3rd harmonic. A boundary configuration comprising linear springs is suggested, and the stiffness is calculated for this case and when the maximum leakage of energy occurs from the 1st harmonic to the 3rd harmonic, i.e., for the minimum reflection coefficient of
the 1st harmonic. It is seen that the reflection coefficient of the incident wave at the fundamental frequency can be significantly less than 1.
On the modeling of thin moving sound sources using a cutFEM approach
Authors: van Ophem Sjoerd
Published: November 2023

While for vibro-acoustic analysis it is often assumed that the source is stationary, in many situations it is moving. Thus, to accurately determine the acoustic response of these systems, a time-varying system has to be solved. This leads to additional challenges, such as how to deal
with the varying geometrical configuration and choosing an appropriate time-stepper. Recently, it was shown that cut finite elements (cutFEM) might be a viable solution, since this approach uses a stationary background mesh and cuts the elements wherever the moving source is located, thus
omitting remeshing and mesh morphing steps. In this contribution, the approach is extended to also include the possibility to model thin sources (plates/shells), which are a common cause for noise radiation in structures. This is a non-trivial extension, since an immersed thin source leads
to a discontinuity in the pressure response among the cut and a local doubling of the elements to capture the pressure on both sides of the cut. This paper describes how to perform numerical integration on the cut elements, how to apply stabilization, and shows a stable time-integration scheme
to calculate the solution. It concludes by showing an example of a moving line source.
Complex band structure in viscoelastic thin plate phononic crystals
Authors: Dos Santos Jose Maria
Published: November 2023

Phononic crystals (PnCs) are artificial composites designed by a periodic arrangement of two or more materials with different properties and/or geometry, in order to tailor the propagation of mechanical waves. The complex band structures of PnC thin plates, consisting of a hard matrix
material reinforced by inclusions of soft viscoelastic material (HS-PnC), and vice-versa (SHPnC), are investigated. In general, elastic plate structures can be modelled using the Kirchhoff- Love theory, which is suitable for thin plates in low frequencies. However, there is a lack of knowledge
concerning the effects of viscoelastic constituents on the complex band structure of flexural Bloch waves in PnC thin plates. In this study, an extended plane wave expansion (EPWE) method is used to compute the complex band structures of VPnC thin plates. The evanescent behaviour of periodic
plates for the cases HS-PnC and SH-PnC is calculated, and the results show that the first creates flat bands for wave localization and the second opens up complete and partial Bragg scaterring band gaps.
Near-field modeling of the head-related transfer function by using the dummy head sound source
Authors: Cho Wan-Ho
Published: November 2023

Various approaches based on direct measurement have been used to obtain the precise headrelated transfer function (HRTF). However, several problems persist, such as scattering of sound source and distance effect, which are related to the measurement configuration. In this work, the
modified dummy head having two sound sources located at the ear positions is applied as the sound source reciprocally to overcome the trouble. By using the near-field acoustic holography, the sound sources located in the ear holes are reconstructed from the measured data in the near-field
hologram. One can predict the acoustic transfer function between the ear holes and the field positions at any point using the recovered source information described in spherical harmonics. The obtained transfer function is valid for predicting the binaural response from any sound source position.
This configuration is possible to measure the near-field response with the relatively small scattering effect because of the low Helmholtz number of microphones. The far-field reconstruction of HRTF is also possible with the near-field measurement data using acoustical holography. The proposed
method is demonstrated with the modified B&K HATS system, in which the microphones in the ear holes are replaced by pipe sources connected to the loudspeaker.
Nature et sacrement
Authors: Tillich Paul
Published: November 2023

Paul Tillich (1886-1965) a publié ce texte sur Nature et Sacrement en 1928, à une époque où il a des liens étroits avec le mouvement dit de Berneuchen, mouvement de renouveau liturgique et théologique au sein de l’Eglise luthérienne allemande, qui trouvera ultérieurement des prolongements dans l’Eglise confessante allemande ou même jusque dans la spiritualité de la Communauté de Taizé.

C’est un article important pour Tillich puisqu’il le publiera en anglais en 1948, puis le retravaillera encore en 1950 pour en donner une version allemande légèrement différente.
Croire et comprendre
Authors: Zumstein Jean
Published: November 2023

Aujourd’hui, les Églises sont prises dans leur lecture de la Bible entre deux tentations : celle d’une explication savante qui ne s’occupe pas de la foi, ou celle d’un commentaire pieux qui laisse de côté le savoir et la réflexion. Jean Zumstein montre comment on doit articuler le «croire» et le «comprendre» de manière à éviter ces deux écueils.
Protestantisme : une naissance sans faire-part
Authors: Bost Hubert
Published: November 2023

Qu’est-ce que le protestantisme ? Les théologiens en donnent de pertinentes définitions, mais l’historien, lorsqu’il réfléchit aux termes de son lexique, doit s’ émanciper de leur tutelle. A travers une enquête sémantique et divers exemples pris dans l’histoire de la théologie francophone aux XVIe et XVIIe siècles, Hubert Bost souligne la rupture entre Réforme et protestantisme. Il montre comment ce dernier est le résultat d’une synthèse confessionnelle que la Révocation de l’Edit de Nantes a contribué à précipiter.
La catéchèse au défi de la sécularisation
Authors: Delteil Gérard
Published: November 2023

La scène catéchétique apparaît aujourd’hui fortement contrastée. Gérard Delteil propose un essai de typologie des pratiques avant de relever quelques questions transversales comme autant de jalons pour une didactique de la catéchèse.
Le discours missionnaire de Jésus : réception patristique et narration apocryphe
Authors: Bovon François
Published: November 2023

François Bovon s'intéresse à la réception du discours missionnaire de Jésus dans les premiers siècles de l’ère chrétienne. Les commentaires patristiques d’un côté, et les narrations apocryphes de l’autre, manifestent deux types légitimes d’interprétation, enracinés l’un et l’autre dans un christianisme qui exige la complémentarité du dire et du faire.
Les styles architecturaux du protestantisme : un survol du problème
Authors: Reymond Bernard
Published: November 2023

De la Réforme du XVIe siècle à l'époque contemporaine, les temples protestants ont parfois su exprimer architecturalement une piété spécifique. À travers une enquête historique, Bernard Reymond explique ce qu'ont été les originalités — mais aussi les échecs — de leur conception et de leur construction.
L'écoute-accompagnement du pasteur
Authors: Auque Hubert
Published: November 2023

Nul ne peut écouter s’il n’a été écouté. Avant de proposer cette tâche qui ne s’improvise pas, il convient de remarquer que le pasteur de paroisse n’est pas le mieux placé pour pratiquer l'écoute-accompagnement. Une sensibilisation est à prévoir dans la formation pastorale, mais Hubert Auque montre qu’il reste opportun de décharger le pasteur de paroisse d’un acte pour lequel une formation de qualité s’impose et devrait, assortie d’une supervision, permettre à des pasteurs sans chaire une pratique renouvelée.
Les fondements théologiques et sociologiques d’un Islam de France
Authors: Jaballah Ahmed
Published: November 2023

Peut-on parler d’un «Islam de France» ? Quelles définitions peut-on donner de cette expression ? Quelles sont les raisons qui en justifient la mise en débat ? L’islam - en tant que religion - comprend-il des éléments lui permettant de s’adapter à la réalité française en particulier, occidentale en général ? La communauté musulmane de France connaît-elle des changements pouvant favoriser l’émergence d’un «Islam de France» ? Telles sont les questions sur lesquelles Ahmed Jaballah s’interroge ici.
Nouveaux repères pour concevoir une église aujourd’hui
Authors: Westphal Nicolas
Published: November 2023

Évry et Myyrmäki : une cathédrale en ville nouvelle, une église dans une banlieue. A travers l’étude de ces deux nouveaux bâtiments pris dans l’actualité de l’architecture religieuse, Nicolas Westphal dégage quelques réflexions et solutions faisant apparaître une nouvelle «visibilité» de l’Eglise aujourd’ hui, cette visibilité concernant non seulement l’aspect extérieur du bâtiment dans l’environnement de la ville moderne, mais aussi l’espace intérieur qu’il propose aux habitants de cette ville, la façon de les rassembler autour de l’évangile.
Qu’est-ce qu’une religion ? Le religion entre identité et altérité
Authors: Collange Jean-François
Published: November 2023

De quoi parle-t-on lorsque l'on parle de religion et de religieux ? Par-delà le maquis des définitions, Jean-François Collange propose de comprendre ce phénomène comme la tentative ultime de constitution d’identités (personnelles et/ou collectives) affrontées à l’altérité — à celle d’autrui comme à celle de l’infini lui-même. L’étude du rôle joué par le religieux dans quelques expériences existentielles — banales et fondamentales à la fois — s’efforce de donner corps à une thèse dont les conséquences proprement éthiques devraient s’annoncer particulièrement fécondes.
De l’usage de la frontière dans la rencontre entre Jésus et la Syrophénicienne (Mc 7/24-30)
Authors: Brandt Pierre-Yves
Published: November 2023

This study is divided into three parts. The first part gives a rapid survey of the main interpretations of Mk 7 :24-30 in the light of the different commentators’ understanding of Mk 7 :27. In the second part, psychoanalytic (Dolto), feminist (Fander) and sociological (Theissen) interpretations of the story are discussed. The third part is devoted to an analysis of the meaning of Jesus’ crossing of the frontier in the context of Mark’s Gospel as a whole. One of the suggestions made is that Mk 7 :24-30 plays a central role in Mark’s Gospel in terms of justifying the mission to the Gentiles and their interpretation into the promises made to Israel. On another level, the use of the results of the school of Palo Alto suggests that Jesus’ response to the Syrophenician woman could be reinterpreted as an operation of reframing.
Les deux faces de Jérémie 52
Authors: Fischer Georg
Published: November 2023

Georg Fischer montre que Jr 52 présente deux faces : l’une est orientée sur l’historiographie deutéronomiste, l’autre sur le reste du livre de Jérémie. — Jr 52 reprend 2 R 24-25 de manière plus complète, en accentuant davantage la responsabilité individuelle et la perte du Temple et de ses ustensiles. Comme répétition à l’intérieur du canon, ce texte confirme une seconde fois la chute de Jérusalem. — Étonnamment, ce texte étranger pris de HD montre des rapports étroits avec le livre de Jérémie. Il est la conclusion nécessaire du livre, conclusion déjà préparée en Jr 1 puis en Jr 39 et 50-51.
Un baptême - des spiritualités baptismales ?
Authors: Clivaz Claire
Published: November 2023

Since the time of the Reformation, infant baptism has been an issue of contention in intra-protestant debates. Claire Clivaz argues that these debates stem from a recurring difficulty in relating sola gratia and anthropology, on the one hand, and in recognizing without restriction the sacramental status of baptism, on the other hand. She also addresses the consequences of this tension for churches today and suggests some practical mesures for churches in the celebration of baptism for all ages.
Le grand cri de Jésus dans Matthieu 27/50
Authors: Lacocque André
Published: November 2023

According to Matthew, Jesus with his last breath on the cross shouts something unspecified but which provokes a series of apocalyptic phenomena. One of the most characteristic is the tearing of the temple veil, which used to restrict the domain of God’s presence. Jesus’s cry, it is here argued, is itself apocalyptic. A strong Jewish tradition has it that the martyrs by the hands of the Romans uttered highly significant last words. Jesus’s Great Cry, it is suggested, was the utterance of the Tetragrammaton.
L’interprétation de l’Apocalypse en débat
Authors: Prigent Pierre
Published: November 2023

Depuis une vingtaine d’années, l’exégèse de l’Apocalypse a connu quelques grands moments : l’analyse générique a cru pouvoir renouveler la recherche. Ayant découvert ses limites, on tente de pratiquer une analyse narrative enrichie par la recherche intertextuelle (derrière ce langage technique se cachent des problèmes essentiels qui peuvent s’exposer clairement). C’est à cet instant de l’histoire de l’exégèse que paraît une œuvre majeure : le commentaire de l’Apocalypse de D. E. Aune. Pierre Prigent remet toute cette évolution de la lecture de l’Apocalypse en perspective.
Le paradigme perdu. Le Great Awakening, entre la faute et l’innocence
Authors: Cottret Bernard
Published: November 2023

Paradigm Lost : the Great Awakening, from sin to innocence. The great American revival of the mid eighteenth-century was marked by renewed emphasis on original sin and transgression. Guilt, fear, repent and conversion are the ingredients of that religious correctness which challenged the authority of well established ministers. Taking as a reference J. Edwards’ Great Christian Doctrine of Original Sin Defended (1758), the author examines the interplay between guilt and innocence, knowledge and experience in the age of the Enlightenment, a few decades before the American revolution. Taking up the opposition between Old and New Testament, and raising wild millenial expectations, the American Great Awakening is largely an interpretative myth, emphasizing the missionary role of the New World and its manifest destiny. Though they disagreed on the universality of salvation, George Whitefield, and to a lesser degree John Wesley, the English founders of methodism, were influenced by the new evangelical spirit. Tocqueville himself in his seminal study of democracy showed how the new Homo Americanus was another Adam revisited.
«Visionnaire, va-t’en !». Interprétation d'Amos 7/10-17 dans son contexte
Authors: Vincent Jean-Marcel
Published: November 2023

The narrative about the encounter between the prophet Amos and Amatsia, the priest of the royal sanctuary of Bethel, interrupts the autobiographic cycle of visions (7/1-8 and 8/1-3). This insertion raises some questions. Is it due to some clumpsiness or even some error of transmission ? A closer look at the redactionnal logic of the writing of Amos, the study of the lexical and syntactical links between the narrative and both visions that frame it, and a particular attention to the rhetorical phenomenon of repetition lead to a different conclusion : the interlacing of the narrative with the visions is intentional and highly significant. It gives to the narrative an emblematic quality.
Éloge de l’avant-dernier
Authors: Causse Jean-Daniel
Published: November 2023

Jean-Daniel Causse reprend la catégorie de l’avant-dernier pour repenser l’existence et le monde dans son rapport à l’ultime ou à l’eschaton. À partir d’une réinterprétation de Crainte et tremblement de Kierkegaard, il définit le sujet institué par le mouvement ultime de la foi. Il montre ensuite comment le courage d’agir trouve sa source dans une éthique en même temps brisée et reconstruite par la foi. Enfin, dans la tradition mystique, il trouve une compréhension d’un eschaton qui empêche toute clôture du monde et qui inscrit l’existence dans l’espace avant-dernier d’une insatisfaction féconde.
La nouvelle création et l'invention du moi
Authors: Vouga François
Published: November 2023

François Vouga montre que l’évangile paulinien se fonde sur une révélation apocalyptique selon laquelle chaque être humain est une personne qui existe indépendamment de ses qualités et de ses actes. Cette révélation signifie la découverte de la personne individuelle comme moi et comme sujet autoréflexif de la vie spirituelle. Elle est fondée sur le paradoxe absolu de la révélation eschatologique de Dieu dans la personne historique d’un transgresseur de la Loi et d’un crucifié. L’évangile de Dieu que proclame l’apôtre est ainsi un scandale pour ce monde tandis que, pour le croyant, il est puissance qui fait vivre, qui libère de la maladie à la mort et qui transforme l’existence en une création nouvelle.
Lecture jungienne de l’histoire de Jacob
Authors: Kaempf Bernard
Published: November 2023

The story of Jacob is presented here in a narrative way through the categories of the Jungian psychology. By this kind of reading, the text, which often seems to belong to the past, can get closer to the reader, who may identify more easily with the caracters. By such an approach, the story of Jacob should make sense again.
Le rite en perspective protestante : Le rite comme geste
Authors: Gagnebin Laurent
Published: November 2023

Trying to define the notion of rite and to circumscribe the problems attached to this notion in protestant theology, the author presents rite as gestures which, like words pronounced in fleeting time, must be regarded as ephemeral, precarious, and opposed to any attempt of spatial objectification. Such attemps belong to a geography of salvation characteristic of roman Catholicism, whereas protestantism, according to its iconoclastic essence, prefers to think in terms of history of salvation. Examples borrowed from the field of church architecture and worship illustrate this thesis. Eventually, in order to favour group discussions, the article concludes on some open questions.
La crise du langage de la foi et la parole : Ebeling et la prédication
Authors: Lienhard Fritz
Published: November 2023

In his hermeneutical theology, G. Ebeling understands the word - which he ultimately identifies with the person of Christ - as an encounter. God is identified with this event. Through several examples, Fritz Lienhard shows the theological pertinence of this theme. He claims that the announcement of the Gospel becomes relevant by encountering human beings in their daily life, in the midst of their moments of distress.
Pierre, apôtre entre Judas et le disciple bien-aimé
Authors: Burnet Régis , Bizot Catherine
Published: November 2023

On dit souvent que, dans l’Évangile de Jean, Pierre «cède la place» au disciple bien-aimé. Si cela était vrai, pourquoi se voit-il confier la tâche de paître le troupeau du Seigneur ? Nous voudrions montrer qu’en fait, Pierre n’est pas seulement mis en compétition avec le disciple bien-aimé, mais aussi avec Judas. Par conséquent, il apparaît comme un simple homme, entre l’image idéale du disciple bien-aimé et celle, diabolique, de Judas.
Pour en finir avec le mythe des origines : Le Mayflower compact
Authors: Henneton Lauric
Published: November 2023

Le Mayflower Compact, rédigé par les premiers colons de Nouvelle-Angleterre en 1620, est l’un des textes fondateurs de l’histoire nord-américaine. Voir dans ce document l’origine de la démocratie américaine tient, depuis longtemps, du lieu commun. Faut-il, comme le soutient entre autres André Kaspi dans un ouvrage destiné au grand public, le considérer comme un «premier pas vers une démocratie égalitariste» ? C’est sur quoi s’interroge Lauric Henneton par le biais d’une relecture contextualisée. Plus largement, il soulève le problème d’un passé érigé en mythologie nationale sujette à de nombreuses réappropriations politiques et idéologiques.
Le Fils du Très-Haut. Sur les anges et la christologie
Authors: Roukema Riemer
Published: November 2023

En se basant sur quelques études sur la christologie angélomorphe, R. Roukema examine dans quelle mesure il est justifié de considérer Jésus comme l’incarnation du plus haut ange de Dieu. Il semble qu’à l’origine Yhwh était subordonné au Dieu Très-Haut, et qu’il pouvait être appelé l’un des fils de Dieu. Philon d’Alexandrie et les chrétiens, gnostiques comme orthodoxes, ont transmis plusieurs versions du panthéon ancien. Il s’ensuit que Jésus peut être considéré comme l’incarnation de Yhwh et comme le Fils du Dieu Très-Haut.
Josué et la rhétorique de la violence. Le cas de la prise d'Aï en Jos 8/1-29
Authors: Butticaz Simon
Published: November 2023

The conquest narratives in Josh. 1-12 are of a rare violence. The capture of some cities such as Jericho, Ai or Hazor are followed by massive killings. Jericho is in ruins, and all its inhabitants - women, men, children, elders, oxen, ewes, asses - are put to the sword. In Ai, the number of dead amounts to 12.000 ; Hazor, “the head of all these kingdoms”, is reduced to ashes. How are we to explain that God tolerates such massacres ? Is God violent ? Isn’t he the God of mercy and kindness, who does not hesitate to give his only Son ? The marcionite heresy chose to dispose of the question by opting for a canon of Scriptures which deliberately excluded the OT. For its part, the “orthodox” current took the risk of a polyphonic reading of Scriptures, thus conserving the Hebrew Bible and the obscure aspects of God. As heirs to this tradition, we are to be confronted with this thorny question - a question which is all the more complex since archaeology has taught us in the meantime that very few Canaanite cities were in fact destroyed by the Israelite tribes. What significance should we therefore give to the extreme violence of the Book of Joshua ? Which circumstances could cause the ancient Israel to relate its own past in such bellicist manner ? These are the questions guiding this contribution and informing its reflection.
Le Shabbat : un temple dans le temps
Authors: Bauks Michaela
Published: November 2023

In the Sacerdotal Works, the Sabbath is regarded as the seventh day that has come to replace the old festival celebrating the full moon, since the days of exile. Such a shift in meaning appears to have occurred for the first time in this very work. It becomes rather striking if one compares it with the Book of Ezekiel where the Sabbath remains mostly secondary. Ezechiel himself may have regarded the Sabbath as a full moon festival and the occurrences of weekly Sabbaths in his Book were presumably the result of later rewritings. According to Michaela Bauks, the Sacerdotal Works established the weekly celebration of the Sabbath at the time of exile.
L’héritage de la Réforme à l’articulation et de la théologie de l’histoire
Authors: Bost Hubert
Published: November 2023

16th century Reformation stands as a heritage for protestantism, that Hubert Bost reads from an existential standpoint. It should not be considered as something one is entrusted with but as a gesture meant to be welcomed by the heir and not owned. The interdisciplinary matching of history with theology initiated here highlights the depth as well as the complexity of this heritage and possibly its ambivalence.
L’herméneutique de Jésus au sujet de la loi dans la parabole du bon Samaritain
Authors: Lacocque André
Published: November 2023

La thèse de cet essai est que la Parabole du Bon Samaritain fournit une clé exégétique importante pour la compréhension de la Torah (Loi/Orientation) dans la pensée de Jésus. Le prêtre et le Lévite représentent une certaine méthode d’interprétation avec laquelle le Juriste de l’histoire se sent manifestement en sympathie, mais rejetée par le Maître. Le Samaritain est aux antipodes des clercs et autres autorités morales du peuple, mais il démontre une compréhension de la Loi marquée par le principe de surabondance de l’amour. Celui-ci, loin d’être «anomiste», radicalise la portée de la Torah par le refus de toute définition restrictive du «prochain». Mon prochain est celui que je fais proche. Tout dépend de moi et non d’une quelconque qualité (ou déficience ) intrinsèque du blessé de la Parabole. La pratique de toute la Torah est à l’avenant, c’est-à-dire que, pour celui qui est pur, tout est pur (Tt 1,15), et, pour celui qui aime, les «autres» sont faits «semblables». En Le 10,37, le Juriste semble avoir été convaincu par Jésus... ce qui est loin d’être une petite affaire quand on pense qu’il lui faudra remettre en question ses options fondamentales : de la désorientation à la réorientation.
Le protestantisme est-il capable d’Europe ?
Authors: Birmelé André
Published: November 2023

Dans l’Europe qui se construit, les Églises issues de la Réforme ont quelque peine à faire entendre leur voix. Par delà les enjeux politiques, ce constat interroge l'ecclésiologie de ces familles. Par différentes déclarations signées dans les dernières années, réformés, luthériens, méthodistes et anglicans se sont déclarés en pleine communion. Cette démarche théologique essentielle ne fait sens que si cette unité s’incarne et devient visible. A la différence de certaines voix protestantes qui se contentent du statu quo, André Birmelé analyse les conditions qui permettraient aux Églises issues de la Réforme de relever ce défi. Elle plaide aussi pour une compréhension synodale qui ne se confinerait plus aux seules frontières nationales.
De la restauration du régime synodal dans les Églises réformées à l’époque contemporaine
Authors: Pacteau Séverine
Published: November 2023

Séverine Pacteau-de-Luze shows here that the presbyterian-synodal form of government adopted by the French reformed churches from their foundation, has never functioned without difficulties. It is supposed that these difficulties came from the mistrust of the royal authorities under the Ancien Régime, which outlawed national synods from 1659. This ban was confirmed by the “Articles Organiques” attached to the Concordat. In recent history, although synods were authorised, their workings were still problematic. Such was the case, at the national synod of 1872 : not only was it impossible to find a doctrinal agreement between evangelicals and liberals, but worse, the churches divided into two rival national unions, which considerably weakened their impact. Even though government by synod was restored by the reunification of the Eglise Réformée de France in 1938, it only became a reality after 1945, and not without its teeing problems up to the sixties.
La naissance de Moïse. Essai de définition de la structure et de l’intrigue d’Exode 1,1-2,10
Authors: Vialle Catherine
Published: November 2023

Catherine Vialle offers a synchronical study of Ex 1,1-2,10 in order to understand the dynamic underlying this narrative. Analysing its literary structure, organised around Pharaoh’s aggressions in two episodes and three scenes, and its unresolved plot, built upon Pharaoh’s three speeches, she concludes that Ex 1,1-2,10 might be plausibly considered as a prologue for the whole book of Exodus.
Dieu au quotidien. Esquisse d’une anthropologie de la spiritualité féminine
Authors: Hasdeu Iulia
Published: November 2023

God in the day to day. The outline of an anthropology of feminine spirituality.

Starting from an ethnographic enquiry concerning witchcraft and popular medicine in several Romanian-speaking regions, Iulia Hasdeu explores the cultural constants of a feminine spirituality integrated into European Christianity. This spirituality is characterised particularly by the key role played by the figure of the witch, by the prominent place of the body and of physical objects, and by promoting an essentially domestic conception of religious life. These features challenge classical distinctions between public and private, immanent and transcendent, routine and ceremonial, and equally the historical opposition between Western and Eastern Christian traditions. Stories told by Romanian women, iconographie productions and cultural practices witness to this specifically feminine spirituality which, although on the fringes of ecclesiastical institutions, are very present in daily life.
Le Shabbat comme base d’un nouveau calendrier
Authors: Guillaume Philippe
Published: November 2023

As a critical reaction to the definition of the Shabbat as “a temple in time” proposed in a recent article by Michaela Bauks, Philippe Guillaume analyses the Shabbat in the context of Persian history. He shows that it is the structure of a calendar based on the model of the Zoroastrian calendar - whose specificity is to celebrate a new era -, and that this calendar is probably the 364 day calendar which is to be found in the Book of the Jubilees (2nd Century B. C.)
Le personnage de Nicodème comme figure de nouvelle naissance
Authors: Renouard Christine
Published: November 2023

Un homme de l’ombre, presque ridicule par sa mécompréhension des paroles de Jésus, tels sont les traits auxquels Nicodème est parfois réduit. Christine Renouard analyse le cheminement de ce personnage dans l’Évangile de Jean, pour tenter d’en dégager l’identité passablement complexe que construit le parcours narratif du Quatrième Évangile, et invite à voir en lui une figure de nouvelle naissance ainsi que le paradigme de la foi comme accueil.
Ando sola y me río del rebaño
Authors: Rizzo María Belén
Published: November 2023

El presente trabajo se propone realizar un recorrido por las imágenes de la risa en la poesía de Alfonsina Storni y el modo en que éstas se vinculan con la construcción de una voz poética en el contexto del sistema literario nacional de comienzos de siglo XX y de los idearios dominantes de la feminidad que imperaban en la época. Para ello, nos centraremos en el poema “La loba”, publicado en 1916, y en una serie de poemas posteriores en los cuales se repiten diferentes figuras de la risa. Asimismo, para vincular la producción poética de Storni con su época, especialmente la “ideología de la domesticidad”, recorreremos algunas de sus crónicas, reunidas en Un libro quemado.
Production of Chemically Modified Shear Thickening Fluids and Investigation of Their Rheological Properties
Authors: SOLMAZ Murat Yavuz , YANEN Cenk , KISTAK Celal , AYDOĞMUŞ Ercan
Published: November 2023

In this study, the rheological properties of shear thickening fluid, which are generally used as single solid phase in the literature, were investigated by chemical material reinforcement. Considering that the unique shear thickening effect of STF is used in many areas such as increasing the impact resistance of fabrics and energy dissipation, this study aims to provide guidance for investigating what STFs can do with chemical bonds as well as physical bonding.Methylene diphenyl diisocyanate (MDI) was used in varying proportions for chemical reinforcement. When the rheological properties of the suspensions reinforced with MDI as a chemical additive were evaluated, the initial viscosity values increased as the MDI ratio increased, while the solidification behavior under shear was observed significantly in the sample with 2.5% MDI ratio with increasing shear ratio.
Optimal Equipment Capacity Planning in the Neonatal Intensive Care Unit with Simulation-Optimization Approach
Authors: Narlı Müfide , Kuvvetli Yusuf , Kokangül Ali
Published: November 2023

Capacity planning should be performed to balance investment costs and benefits of investing to meet the current and future demand in intensive care units. Having a high capacity to increase patient admission will lead to unutilized capacity in some periods, thereby increasing costs. On the other hand, patient admission requests from inborn and transported patients might be rejected due to lack of equipment. It should be considered in terms of cost-effectiveness and patient health; therefore, optimal equipment capacity must be determined. In this study, the optimal capacity planning problem has been considered for the neonatal intensive care unit of a hospital adopting the simulation-optimization approach. A discrete event simulation model is proposed for a neonatal intensive care unit in Adana, Turkey. Then, the optimization model identified the optimal numbers of incubators, ventilators, and nitric oxide devices to maximize equipment efficiency and minimize total inborn patient rejection and transport ratios. Three different resource allocations are presented, and the best is obtained from these three objectives as 72 incubators, 35 ventilators, and three nitric oxide devices. The application results obtained have revealed that the rejection and transport rate, which is found to be 1.12% in the current situation, can be reduced to 0.2% with different numbers of equipment and that equipment efficiency can be achieved with optimal numbers of equipment. The results of the study can help the decision-makers when minimum transport and rejection ratios are critical which almost intensive care units are required. Furthermore, the proposed simulation-optimization model can be adapted to different neonatal intensive care units having the same characteristics.
Classical and Bayesian Inference for the Length Biased Weighted Lomax Distribution under Progressive Censoring Scheme
Authors: S. Hassan Amal , A. Atia Samah , Z. Muhammed Hiba
Published: November 2023

In this study, the length biassed weighted Lomax (LBWLo) distribution's reliability and hazard functions, as well as the population characteristics, are evaluated using progressively Type II censored samples. The proposed estimators are obtained by combining the maximum likelihood and Bayesian approaches. The posterior distribution of the LBWLo distribution is derived from the Gamma and Jeffery's priors, which, respectively, act as informative and non-informative priors. The Metropolis-Hasting (MH) algorithm is also utilized to get the Bayesian estimates. Based on the Fisher information matrix, we derive asymptotic confidence intervals. We create the intervals with the highest posterior density using the sample the MH technique generated. Numerical simulation research is done to evaluate the effectiveness of the approaches. Through Monte Carlo simulation, we compare the proposed estimates in terms of mean squared error. It is possible to get coverage probability and average interval lengths of 95%. The study's findings supported the idea that, in the majority of the cases, Bayes estimates with an informative prior are more appropriate than other estimates. Additionally, one set of actual data supported the findings of the study.
A Low-Profile High Isolation Wideband Dual-Polarized Antenna for Sub-1 GHz Base Stations
Authors: Miran Emre Alp , Çiydem Mehmet
Published: November 2023

This study introduces a compact, wideband dual-polarized suspended patch antenna designed for LTE700/LTE850/CDMA850/GSM900 applications, with a focus on achieving high isolation. The antenna design has two suspended patches that are excited in orthogonal directions using a modified crossed-slot configuration. The modifications applied to the crossed-slot significantly enhance the −15 dB impedance bandwidth, resulting in improved port isolation between polarizations. Both theoretical analysis and experimental testing confirm these enhancements, revealing an impressive −15 dB impedance bandwidth of 37% (688-1000 MHz) and port isolation exceeding 35 dB in the operating band. The antenna exhibits symmetric and directional radiation patterns in principle planes, with half-power beamwidths ranging from 55.32º to 65.61º and 61.79º to 66.84º. Antenna gain show exhibits variation in the range of 7.3-8.4 dBi across the measured frequencies. The compact size of the antenna, measuring 380 × 380 × 43.6 mm³, makes it highly suitable for integration into commercially deployed base stations. Throughout the paper, we provide a detailed presentation of the antenna's geometry, feeding mechanism, parametric studies, and experimental results. The combined theoretical analysis and practical experimentation validate the success of the proposed antenna design, highlighting its potential for robust performance in a wide range of communication applications.