Search results for "Meter"
showing 10 items of 16915 documents
CCDC 904908: Experimental Crystal Structure Determination
2013
Related Article: Anuj Kumar Sharma, Francesc Lloret, and Rabindranath Mukherjee|2013|Inorg.Chem.|52|4825|doi:10.1021/ic302259t
CCDC 817805: Experimental Crystal Structure Determination
2011
Related Article: M.Sarwar, A.M.Madalan, F.Lloret, M.Julve, M.Andruh|2011|Polyhedron|30|2414|doi:10.1016/j.poly.2011.06.011
FIA-fluorimetric determination of adrenaline in pharmaceutical formulations by oxidation with molecular oxygen
1998
The fluorimetric determination of adrenaline is carried out in a continuous-flow assembly and by means of the molecular dissolved oxygen. The sample solution merges with an NaOH stream, then the resulting mixture is heated at 73 °C and led to the flow-cell of the fluorimeter. The flow-assembly is very simple and the procedure is quick (107 samples h−1) reproducible (R.S.D. 0.6%), selective and suitable to be applied to determination of adrenaline in formulations. Calibrations graph are linear over the ranges 0.05–15 and 20–40 mgl−1.
Interaction of methyltin(IV) compounds with carboxylate ligands. Part 2: Formation thermodynamic parameters, predictive relationships and sequesterin…
2008
Thermodynamic data of mono-, di- and tri-methyltin(IV)-carboxylate complexes (acetate, malonate, succinate, oxydiacetate, diethylenetrioxydiacetate, malate, citrate, 1,2,3-tricarballylate, 1,2,3,4-butanetetracarboxylate, 1,2,3,4,5,6-benzenehexacarboxylate) in aqueous solution are reported at t = 25 °C and I = 0 mol l−1. Thermodynamic parameters obtained were analysed to formulate empirical predictive relationships as a function of different parameters, such as the number of carboxylate groups of the ligand and the charge of the alkyltin(IV) cation. Sequestration diagrams of citrate and 1,2,3-tricarballylate towards alkyltin(IV) cations at different pH values are also reported and discussed.…
L’area ad Est dell’ipogeo L. Il saggio D. Le olle. I sostegni. Gli oggetti vari.
2007
The essay concerns the results of the archaeological excavation carried out in the area East of the s.c. "hypogeum L" in the Early Christian cemetery of Agrigentum in the year 1999; it contains, also, the catalogue of the Medieval coarse and cooking wares (ollae) found in the area, and the different types of supports used in the ceramic workshop established in the Late Antique cemetery during the Middle Ages.
Ricerche di Archeologia cristiana e bizantina nella Sicilia occidentale
2017
The seventh Quaderno Digitale di Archeologia Postclassica contains the results of the researches conducted by the Department of Cultural Heritage of the University of Palermo and by the Pontificia Commissione di Archeologia Sacra in the Early Christian catacomb of Villagrazia di Carini during the years 2013-2014. Emma Vitale and Fortunatina Vaccaro present the stratigraphic excavation carried out in the south-eastern district of the cemetery, while, in the third study of the book, Giuseppe Falzone analyzes two painted funerary inscriptions on the interior walls of Byzantine burials brought to light, in recent years, along the Decumanus Maximus of Lilybaeum.
Conflicting needs of the thermal indoor environment of museums: In search of a practical compromise
2008
Thermal indoor microclimate conditions in museum buildings refer to two important requirements: the preservation of works of art and the comfort of visitors to these buildings and/or those working inside them. Unfortunately, different works of art have different internal parameters which render the management and control of the indoor thermal microclimate difficult. In this work the values proposed by various standards for the thermal environment of museum buildings have been revised. Moreover, the indoor microclimatic conditions relating to people's comfort have been described, with the aim of singling out possible common ranges for these parameters. With this aim, a useful simultaneousnes…
POROSITY DETERMINATION WITH HELIUM PYCNOMETRY AS A METHOD TO CHARACTERIZE WATERLOGGED WOODS AND THE EFFICACY OF THE CONSERVATION TREATMENTS
2012
The helium pycnometer allows us to measure the cell-wall density of dry woods and the basic density of wood samples soaked with water and/or a consolidant solution if a non-volatile solvent is used. These parameters were correlated to the porosity, which for degraded waterlogged wood is related to the maximum water content. Moreover, this has revealed the possibility of investigating, by means of accurate cell-wall density determination, the efficacy of several consolidants in the treatment of waterlogged woods.
People comfort and artwork saving in museums: comparing indoor requisites
2009
In museums, environmental indoor conditions should, contemporaneously, preserve the exhibited works of art and ensure the comfort conditions for people. Unfortunately, human and artworks requirements are characterised by different values of the physical indoor parameters that, occasionally, could become conflicting. In the paper, these problems are addressed by means of a literature analysis, with a specific attention to thermal comfort conditions of people. The possibility of finding common ranges of values for both requisites is finally discussed. Some recent technical recommendations on the matter have also been considered for indicating some HVAC equipment and appliances to be adopted i…
Studies of the bromine spectrum and determination of transition probabilities for Br I and Br II lines
1999
In a wall-stabilized cascade arc at atmospheric pressure in mixtures of argon and bromine vapors thermal plasmas were generated. Arc currents between 25 and 60 A were used. Applying a spectrometer of medium dispersion, equipped with an optical multichannel analyzer (CCD detector), the spectra of neutral and singly ionized bromine in the range between 3300 and 10400 A were recorded. Line intensity measurements, corrected for self-absorption, at different operating conditions of the arc, were performed. A complete set of Br I transitions (5 lines) originating from a common upper level (branching fractions) was measured. In the case of the Br II spectrum intensities of 14 lines were determined…