196,233 research outputs found
Le porteur de dépêches : chanson créée par Mlle Amiati [illustration Donjean]
No full textLe porteur de dépêches : chanson créée par Mlle Amiati à l’Eldorado ;illustration Donjean ; paroles de Villemer & J. Fuchs ; musique de L. Benza [Ludovic Benza] ; Ph. Feuchot éditeur, Palais Bonne Nouvelle, Paris ; imprimerie Arouy ; [intérieur : “chanson créée par Mlle Amiati à l’Eldorado” ; Lud. Benza ; cotage PF2409 ; gravure M. Blanchet ; imprimerie Arouy] ; verso vierge ; incipit “Le général lui dit : Aimes-tu ta patrie ?” ; datation 1874 (par BNF et cotage D&L). [pages intérieures medihal-01484560
Le porteur de dépêches : chanson créée par Mlle Amiati [paroles et musique]
No full textLe porteur de dépêches : chanson créée par Mlle Amiati à l’Eldorado ;[paroles et musique, intérieur du petit format illustration Donjean] ; paroles de Villemer & J. Fuchs ; musique de Lud. Benza [Ludovic Benza (1834-1874)] ; Ph. Feuchot éditeur, Palais Bonne Nouvelle, Paris ; cotage PF2409 ; gravure M. Blanchet ; imprimerie Arouy ; incipit “Le général lui dit : Aimes-tu ta patrie ?” ; datation 1874 (par BNF et cotage D&L)
Landau-Zener quantum tunneling in disordered metallic nanomagnets
No full textWe study Landau-Zener macroscopic quantum transitions in ferromagnetic metal nanoparticles containing on the order of 100 atoms. The model that we consider is described by an effective giant-spin Hamiltonian, with a coupling to a random transverse magnetic field mimicking the effect of quasiparticle excitations and structural disorder on the gap structure of the spin collective modes. We find different types of time evolutions depending on the interplay between the disorder in the transverse field and the initial conditions of the system. In the absence of disorder, if the system starts from a low-energy state, there is one main coherent quantum tunneling event where the initial-state amplitude is completely depleted in favor of a few discrete states, with nearby spin quantum numbers; when starting from the highest excited state, we observe complete inversion of the magnetization through a peculiar “backward cascade evolution.” In the random case, the disorder-averaged transition probability for a low-energy initial state becomes a smooth distribution, which is nevertheless still sharply peaked around one of the transitions present in the disorder-free case. On the other hand, the coherent backward cascade phenomenon turns into a damped cascade with frustrated magnetic inversion
Le porteur de dépêches : chanson créée par Mlle Amiati [illustration Donjean]
No full textLe porteur de dépêches : chanson créée par Mlle Amiati à l’Eldorado ;illustration Donjean ; paroles de Villemer & J. Fuchs ; musique de L. Benza [Ludovic Benza] ; Ph. Feuchot éditeur, Palais Bonne Nouvelle, Paris ; imprimerie Arouy ; [intérieur : “chanson créée par Mlle Amiati à l’Eldorado” ; Lud. Benza ; cotage PF2409 ; gravure M. Blanchet ; imprimerie Arouy] ; verso vierge ; incipit “Le général lui dit : Aimes-tu ta patrie ?” ; datation 1874 (par BNF et cotage D&L). [pages intérieures medihal-01484560
Mixed Vendor/Retailer management of zero-cost multi-inventory systems
No full textIn this paper, an original mixed VMI (Vendor Management Inventory)/RMI (Retail Management Inventory) IRP (Inventory Routing Problem) characterized by zero inventory costs is considered, focusing on a quite typical scenario of multiproduct delivery to a network of retailers distributed over the territory. In this scenario, some retailers have the possibility to place orders on their own (pull retailers), while the orders of the other retailers (push retailers) are generated in automatic, through the original methodology here proposed. The objective is to avoid stock-outs, minimize transportation costs, and equalize the use of transportation resources over the considered planning horizon. The proposed MVRMIRP is formulated as a mixed-integer mathematical programming problem. Then, an original two-step algorithm is proposed, for solving the considered problem
Le porteur de dépêches : chanson créée par Mlle Amiati [paroles et musique]
No full textLe porteur de dépêches : chanson créée par Mlle Amiati à l’Eldorado ;[paroles et musique, intérieur du petit format illustration Donjean] ; paroles de Villemer & J. Fuchs ; musique de Lud. Benza [Ludovic Benza (1834-1874)] ; Ph. Feuchot éditeur, Palais Bonne Nouvelle, Paris ; cotage PF2409 ; gravure M. Blanchet ; imprimerie Arouy ; incipit “Le général lui dit : Aimes-tu ta patrie ?” ; datation 1874 (par BNF et cotage D&L)
Reaction of 1,4-phthalazinedione with furfural: Formation of the [5,6]benza-3a,7a-diazaindane system via an unusual skeletal rearrangement
No full text(equation presented) Oxidation of phthalahydrazide (1) with lead tetraacetate in the presence of furfural (3a) in methylene chloride gives [5,6]benza-3a,7a-diaza-3-carboxylindane-4,7-dione-1-ene (7a) in 64% yield. 5-Methylfurfural (3b) also reacted similarly to give the product 7b in 46% yield. Reaction of phathalazine-1,4-dione with thiophene-2-carboxaldehyde gives N-(2-formylthiophene)phthalahydrazide
Theory of tunneling spectroscopy in a Mn_12 single-electron transistor by density-functional theory methods
No full textWe consider tunneling transport through a Mn12 molecular magnet using spin density functional theory. A tractable methodology for constructing many-body wave functions from Kohn-Sham orbitals allows for the determination of spin-ependent matrix elements for use in transport calculations. The tunneling
conductance at finite bias is characterized by peaks representing transitions between spin multiplets, separated by an energy on the order of the magnetic anisotropy. The energy splitting of the spin multiplets and the spatial part of their many-body wave functions, describing the orbital degrees of freedom of the
excess charge, strongly affect the electronic transport, and can lead to negative differential conductance
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