22,400 research outputs found
Voyage autour du monde fait dans les années MDCCXL, I, II, III, IV par George Anson ... dans la Mer du Sud
No full texttiré des journaux et autres papiers de ce seigneur & publié par Richard Walter ... ; traduit de l'angloisTitelkupferTitelseite in Rot- und SchwarzdruckOriginaltitel: A Voyage round the World, in the years MDCCXL, I, II, III, I
Motion de M. Anson établissant l'impression à la fin de chaque mois de l'état des reconnaissances provisoires, et remarque de M. Montlosier à ce sujet, lors de la séance du 19 juin 1791
No full textMontlosier François Dominique de Reynaud de, Anson Pierre Hubert. Motion de M. Anson établissant l'impression à la fin de chaque mois de l'état des reconnaissances provisoires, et remarque de M. Montlosier à ce sujet, lors de la séance du 19 juin 1791. In: Archives Parlementaires de 1787 à 1860 - Première série (1787-1799) Tome XXVII - Du 6 juin au 5 juillet 1791. Paris : Librairie Administrative P. Dupont, 1887. pp. 335-336
Arrêté du district Saint-Honoré concernant les assignats-monnaie, témoignant du patriotisme de ce district de Paris, lors de la séance du 20 mai 1790
No full textAnson Pierre Hubert. Arrêté du district Saint-Honoré concernant les assignats-monnaie, témoignant du patriotisme de ce district de Paris, lors de la séance du 20 mai 1790. In: Archives Parlementaires de 1787 à 1860 - Première série (1787-1799) Tome XV - Du 21 avril au 30 mai 1790. Paris : Librairie Administrative P. Dupont, 1883. pp. 627-628
Arrêté du district Saint-Honoré concernant les assignats-monnaie, témoignant du patriotisme de ce district de Paris, lors de la séance du 20 mai 1790
No full textAnson Pierre Hubert. Arrêté du district Saint-Honoré concernant les assignats-monnaie, témoignant du patriotisme de ce district de Paris, lors de la séance du 20 mai 1790. In: Archives Parlementaires de 1787 à 1860 - Première série (1787-1799) sous la direction de Jérôme Mavidal et Emile Laurent. Tome XV - Du 21 avril au 30 mai 1790. Paris : Librairie Administrative P. Dupont, 1883. pp. 627-628
CE Challenges: Work to Do
No full textCE has been used for more than two decades now. Despite many successes and advantages, there are still many challenges to be addressed. These challenges are both technical and organisational. In the paper we will address the current challenges of CE. Many challenges are related to the exchange of data and knowledge and to the systems that make data and knowledge exchange possible. Although much progress has been made in enabling extensive data and knowledge exchange and use, much remains to be wished. For example, there are still barriers to data exchange. Technically, these barriers may consist of different formats, differences in infrastructures and systems, and different semantics. There are also organisational and political barriers. For example, investment in information system may heavily impact upstream suppliers, while revenues of better information exchange may predominantly be gained by downstream actors. Without sharing costs and revenues, chain-wide information exchange will not be easily realised. Another barrier is the possible lack of willingness to share information, because of potential misuse of knowledge and loss of power. The paper is organised as follows. First we will describe the current manifestation of CE as described in a recent book. Second, we will list current trends in CE. Third, we will present some Critical Success Factors (CSFs) that are considered relevant for implementing and adapting CE practices. Last, we indicate some research and practical questions to be addressed, especially for areas that have a high potential and actual impact. </p
Neutron Studies of a High Spin Fe19 Molecular Nanodisc
No full textThe molecular cluster system [Fe19(metheidi)10(OH)14O6(H2O)12]NO3·24H2O, abbreviated as Fe19, contains nineteen Fe(III) ions arranged in a disc-like structure with the total spin S = 35/2. For the first order, it behaves magnetically as a single molecule magnet with a 16 K anisotropy barrier. The high spin value enhances weak intermolecular interactions for both dipolar and superexchange mechanisms and an eventual transition to antiferromagnetic order occurs at 1.2 K. We used neutron diffraction to determine both the mode of ordering and the easy spin axis. The observed ordering was not consistent with a purely dipolar driven order, indicating a significant contribution from intermolecular superexchange. The easy axis is close to the molecular Fe1–Fe10 axis. Inelastic neutron scattering was used to follow the magnetic order parameter and to measure the magnetic excitations. Direct transitions to at least three excited states were found in the 2 to 3 meV region. Measurements below 0.2 meV revealed two low energy excited states, which were assigned to S = 39/2 and S = 31/2 spin states with respective excitation gaps of 1.5 and 3 K. Exchange interactions operating over distances of order 10 Å were determined to be on the order of 5 mK and were eight-times stronger than the dipolar coupling
Synthesis optimization and charge carrier transfer mechanism in LiLuSiO<sub>4</sub>:Ce, Tm storage phosphor
No full textLiLuSiO4:Ce and LiLuSiO4:Ce, Tm show very efficient charge carrier storage properties upon beta irradiation after samples have received treatment in vacuum. They outperform the commercial storage phosphor BaFBr(I):Eu2+ in many aspects. The influence of the synthesis conditions, Ce and Tm concentration, nonstoichiometry and codoping with Ca, Hf, Al and Ge are reported. Based on the results of the synthesis optimization, thermoluminescence (TL) emission and TL excitation spectra a mechanism of charge carrier transfer, storage, and recombination during irradiation and thermal or optical readout is proposed.Accepted Author ManuscriptRST/Fundamental Aspects of Materials and EnergyRST/Luminescence Material
Voyage autour du monde, fait dans les années MDCCXL, I, II, III, IV par George Anson ... commandant en chef d'une escadre envoyée ... dans la Mer du Sud
No full texttiré des journaux & autres papiers de ce seigneur, & publié par Richard Walter ...Impressum teilweise überkleb
Cyan-Emitting Cu(I) Complexes and Their Luminescent Metallopolymers
No full textCopper complexes have shown great versatility and a wide application range across the natural and life sciences, with a particular promise as organic light-emitting diodes. In this work, four novel heteroleptic Cu(I) complexes were designed in order to allow their integration in advanced materials such as metallopolymers. We herein present the synthesis and the electrochemical and photophysical characterisation of these Cu(I) complexes, in combination with ab initio calculations. The complexes present a bright cyan emission (λem ~ 505 nm) in their solid state, both as powder and as blends in a polymer matrix. The successful synthesis of metallopolymers embedding two of the novel complexes is shown. These copolymers were also found to be luminescent and their photophysical properties were compared to those of their polymer blends. The chemical nature of the polymer backbone contributes significantly to the photoluminescence quantum yield, paving a route for the strategic design of novel luminescent Cu(I)-based polymeric materials
The impact of P(NDI2OD-T2) crystalline domains on the open-circuit voltage of bilayer all-polymer solar cells with an inverted configuration
No full textWe fabricated P(NDI2OD-T2)/PTB7 bilayer all-polymer solar cells with an inverted configuration, where the annealing temperature was systematically varied. The current density-voltage behavior was investigated and the structural properties of the P(NDI2OD-T2) layers were characterized. Absorption spectroscopy, surface morphology, and crystallite analysis showed that increasing phase segregation of P(NDI2OD-T2) films occurred as the annealing temperature increased. We found that, as the P(NDI2OD-T2) stacking improved, with larger domains, the open-circuit voltage decreased and the saturation dark current density increased. This work provides a guide for the processing of P(NDI2OD-T2) layers to maximize the power conversion efficiency of all-polymer solar cells. (C) 2015 Author(s).open1186sciescopu
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