14,559 research outputs found
Barbier-Type Nitro/Nitroso Addition Polymerization as a Versatile Approach for Molecular Design of Polyarylamines through CN Bond Formation
The
doping of a polymer chain with nitrogen is an efficient strategy
to endow polymer materials with functionality. However, the molecular
design of polyarylamines through direct C–N bond formation
is still challenging. Herein, a novel polymerization method, named
Barbier-type nitro/nitroso addition polymerization, is reported as
a versatile approach for molecular design of polyarylamines through
C–N bond formation, by utilizing electrophilic nitro/nitroso
groups as polymerizable groups. Through Barbier-type nitro/nitroso
addition polymerization, a series of polyarylamines have been prepared,
including ortho-polyaniline, para-polyaniline, meta-polyaniline, para-polymethylaniline, and polynaphthylamine, most of which are hard
to be synthesized by current other polymerization methods. By introducing
the Barbier-type nitro/nitroso addition into polymer chemistry, the
polymerization methodology, monomer, and polymer libraries of polymer
chemistry are expanded and a novel avenue is opened up for molecular
design of nitrogen-containing polymer materials through direct formation
of a C–N bond
Lettre de Charles Gounod à Jules Barbier, [Paris], jeudi 9 mars 1876 (manuscrit autographe)
Lettre autographe à l'encre. - En haut, à gauche, timbre sec ?. - "A nos deux Jeannes": la fille de Gounod et celle de Barbier se prénommaient Jeanne. - En 1876, Gounod a composé, sur un poème de Louise Marie Barbier, une mélodie " Ma fille,souviens-toi". Il semble qu'il s'agisse de la femme de J. Barbier, bien que dans d'autres lettres elle apparaisse avec le prénom de Marie ou de Marie Louise (voir la lettre du 17 mars)Correspondanc
ThermoMechaLimestone
This data set gives nearly 5 years of temperature and displacements recorded on and in a limestone cliff. An extensive presentation of the monitoring device can be found in (Gasc-Barbier et al., 2020, 2015) and is summarized below. Interpretation of data is proposed in Gasc-Barbier et al. (submitted)
Instrum.jpg display the hazard zone. We can see a perched cave in a limestone cliff where a part of its roof had collapsed. On its roof an unstable beam reminds. This remaining beam is delimited by a horizontal interlayer thinning from East to West, hanging to the roof of the cave at the west and east-clamped in the rock mass. Opened fractures can be observed all around the beam. In order to assess the remaining hazard, 4 fissurometers (F1 to F4) and a thermal probe were installed on the roof of the cave and two borehole extensometers (D1 and D2) were drilled perpendicular to the face of the cliff, above the cave, to understand the global behaviour of the rock mass.
The four fissurometers were positioned around the remaining beam to quantify the aperture of the joints, in order to evaluate the relative movement of the blocks, according to changes in external conditions: F1 near the east-clamped end of the beam, and the three others on the west part: Two of them (F3 and F4) were fixed across a horizontal joint and a vertical joint respectively, F2 is positioned across the vertical joint in a 45° angle. The thermal probe was fixed on the roof of the cavity near the three. Fissurometers are LVDT strain gauges that measure displacements between their two extremes with a resolution of 1/10 th mm. DATA-Fissuromètres gives a record per hour.
The borehole extensometers (D1 & D2) are RockTest / Télémac distofor@ anchored in the rock mass at the end of the borehole at a depth of 8 m from the cliff wall. Both were prepared with three displacement measuring points at depths of 2 m, 4 m and 6 m from the cliff wall and temperature measuring points at 2 m and 6 m depth. The supplier gives a measuring range of 100 mm, a resolution lower than 0.01 mm. Given the length of the rods used (8 m), the precision is about 0.05 mm. The operating temperature must remain between 0° and 50 °C. The devices were placed perpendicular to the rock face, about 4 m and 7.5 m above the roof of the cave cavity (see Gasc-Barbier et al. submitted). DATA_Extenso.xls gives a record per hour.
Measurements lasts between July 2010 until April 2015. They were stopped when reinforcement works were proceeded in the cave in order to secure the village.
Gasc-Barbier et al, 2020 https://doi.org/10.1051/geotech/2020013
Gasc-Barbier, M., Virely, D., Guittard, J., 2015. Thermal fatigue in rocks- la roque-gageac’ case study, in: 13th ISRM International Congress of Rock Mechanics. Montreal, Canada.
Gasc-Barbier, M., Merrien-Soukatchoff, Virely, D. submitted. The role of natural thermal cycles on a limestone cliff mechanical behaviour. Submitted to Engineering Geology
Interview of Evelyn Barbier on her service in the U.S. Army Nurse Corps
In an oral history interview, Evelyn Barbier says that she joined the U.S. Army Nurse Corps in 1941 because she knew that war was imminent and then spent the next twenty years in the Army even though she had never planned on a military career. She talks about some of her duty stations, including the Panama Canal Zone in 1942 and later Germany, Japan, Guam, and Saipan and describes her duties, housing and uniforms and riding out a typhoon in Saipan and a measles epidemic on Guam. Barbier says she adjusted easily to military life and returned to civilian nursing after she retired from the Army. Barbier is interviewed by Marjorie Brown
Selectae disputationes philosophicae, in quibus controuersiae omnes pro integro philosophiae cursu absoluendo, in scholis per triennium agitari solitae examinantur
Marca tipográfica xilográfica del impresor Guillaume Barbier en la portadaSign.: ã6-ê6, A-5G, 5H5Error de paginación, p. 292 por p. 788, p. 701 a 716 por 771 a 776Erratas de signaturas: 3C por 3 BAnteportadaTexto a dos columnasIniciales grabadasPortada a dos tinta
Histoire de Louis-Napoléon Bonaparte, président de la République française, depuis sa naissance jusqu'à ce jour... par A. Barbier...
Avec mode text
Els concerts del Museu Barbier-Mueller [art precolombí] : 2n Cicle d'Estiu
Programa de mà del 2n cicle de concerts d'estiu al pati Palau Nadal-Museu Barbier Mueller, Festival Grec'99. Tots els dissabtes d'Agost'99 a les 8 del vespre
Valse des heures : mélodie-valse pour piano / par Frédéric Barbier ; [ill. par] A. Lamy
Titre uniforme : Barbier, Frédéric (1829-1889). Compositeur. [Valse des heures. Piano]Valses (piano) -- +* 1800......- 1899......+:19e siècle:Piano, Musique de -- +* 1800......- 1899......+:19e siècle
Billet de Charles Gounod à Jules Barbier, S. l., s.d. [1873] (manuscrit autographe)
Billet autographe à l'encre. - A placer en 1873 ou 1874 : Michel Lévy a édité en 1869 le drame de Jules Barbier, Jeanne d'Arc; l'édition du poème avec la musique de Gounod paraît en 1874 chez Michel Lévy Frères (après la création)Correspondanc
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