R502 is due to be banned in the near future, and ti)e need for an immediately available and easy-to-use alternative is becoming more and more urgent. Retrofitting refrigerating units can prove easier and less expensive if the mineral or alkylbenzene lubricants usually adopted with R502 have a certain miscibility in the drop-in mixtures. This paper examines the near-azeotropic mixture Rl43a/290/...

We describe the design and testing of a new all-metal differential ebulliometer which is capable of working in the range 230 to 400 K at pressures to 3 MPa. It can be used to measure pure fluid vapor pressures and P ,T,x,y and infinite dilution activity coefficient data for binary mixtures. Tests for superheating and adjustments for condensed vapor holdup are described. Results are shown for pu...

This article investigates the behavioral drivers of pasture creation and associated implications for deforestation in a 22,000 km2 agricultural frontier spanning the base of Mexico‘s southern Yucatán. After developing a theoretical model that highlights the role of social networks and information spillovers with respect to the decision to begin cattle ranching, we use household data to estimate...

Let p( yl, y2 1 X) denote a discrete memoryless channel with a single source X and two independent receivers YI and Y2. W e exhibit an achievable region of rates (R11,R12,R22) at which independent information can be sent, respectively, to receiver 1, to both receivers 1 and 2, and to receiver 2. The achievability of the region is shown by using a version of the asymptotic equipartit ion propert...

At 100 K, the title mol-ecular salt, C3H8NO+·C2F6NO4S2-, has ortho-rhom-bic (P212121) symmetry; the amino H atom of bis-(tri-fluoro-methane-sulfon-yl)amine (HNTf2) was transferred to the basic O atom of di-methyl-formamide (DMF) when the ionic liquid components were mixed. The structure displays an O-H⋯N hydrogen bond, which links the cation to the anion, which is reinforced by a non-convention...

In the title pyridine herbicide {systematic name: 2-[(4-amino-3,5-di-chloro-6-fluoro-pyridin-2-yl)-oxy]acetic acid}, C7H5Cl2FN2O3, the mean plane of the carb-oxy-lic acid substituent and the pyridyl ring plane subtend a dihedral angle of 77.5 (1)°. In the crystal, pairs of O-H⋯O hydrogen bonds form inversion dimers with R22(8) ring motifs. These are extended into chains along [011] by N-H⋯F hyd...

The coefficient of performance a window type Air-Conditioner system can be improved if reduction in the work compressor achieved by suitable technique. present study investigates effect dispersing low concentration TiO2 nanoparticles mineral oil based lubricant, as well on overall using R22 working fluid. An enhancement COP refrigeration has been observed and existence an optimum volume fractio...

The title compound, C19H17BF3P {alternative name: triphen-yl[(tri-fluoro-boran-yl)meth-yl]phosphanium}, was formed by the reaction of tri-phenyl-phosphine with potassium iodo-methyl-tri-fluoro-borate. The mol-ecule features a nearly staggered conformation along the P-C bond and a less than staggered conformation along the C-B bond. In the crystal, weak C-H⋯F hydrogen bonds between the meta-phen...

We provide evidence of the stock market consumption wealth effect by using a local labor analysis. An increase in driven aggregate prices increases employment and payroll nontradable industries total, with no on tradable industries. In model geographic heterogeneity wealth, these responses imply an MPC 3.2 cents per year that 20 percent valuations, unless countered monetary policy, bill at leas...