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91.
F. Herrera S. Alonso F. Chiclana E. Herrera-Viedma 《Fuzzy Optimization and Decision Making》2009,8(4):337-364
Computing with Words (CW) methodology has been used in several different environments to narrow the differences between human
reasoning and computing. As Decision Making is a typical human mental process, it seems natural to apply the CW methodology
in order to create and enrich decision models in which the information that is provided and manipulated has a qualitative
nature. In this paper we make a review of the developments of CW in decision making. We begin with an overview of the CW methodology
and we explore different linguistic computational models that have been applied to the decision making field. Then we present
an historical perspective of CW in decision making by examining the pioneer papers in the field along with its most recent
applications. Finally, some current trends, open questions and prospects in the topic are pointed out. 相似文献
92.
A five-coordinate, ligand-stabilised alkynenickel carbonyl complex (III), in which bond formation between carbon monoxide and the alkyne does not occur, is formed by reaction of (bipy)ni(CO)2 (I) with phenylacetylene. The products (V and VII) from the reactions of III with carbon monoxide or t-butylisonitrile are described and characterised. A reaction scheme for the nickel-induced CC-bond formation between alkynes and carbon monoxide is discussed. 相似文献
93.
F.J. López Herrera 《Tetrahedron letters》1980,21(51):4963-4966
The products of the Knoevenagel reaction between methyl acetoacetate and aldehydopentoses undergo various cyclisation processes when treated with trifluoroacetic acid in aprotic solvents which are controlled by the sugar configuration at C-2 and C-3. 相似文献
94.
95.
Isochores of solid H2 and D2 have been measured to 2 kbar. Our results lead to reevaluation of the 4.2 K isotherm of Anderson and Swenson to 25 kbar. The equation of state has been determined, including ortho-para dependence. The pre-melting phase transition cited in recent russian literature has not been detected. 相似文献
96.
Isaac M. Daniel 《Experimental Mechanics》1985,25(4):413-420
The behavior of quasi-isotropic graphite/epoxy laminates with cracks subjected to various biaxial-stress fields was studied
experimentally. This was accomplished by uniaxial tensile loading of specimens with cracks of various orientations with the
loading axis. It was found that the critical stress-intensity factor, based on a projected crack length increased by a characteristic
damage dimension, is nearly constant with stress biaxiality and initial crack length.
Paper was presented at V International Congress on Experimental Mechanics held in Montreal, Quebec, Canada on June 10–15,
1984. 相似文献
97.
L.?Herrera G.?Magli D.?MalafarinaEmail author 《General Relativity and Gravitation》2005,37(8):1371-1383
A new, globally regular model describing a static, non spherical gravitating object in General Relativity is presented. The model is composed by a vacuum Weyl–Levi-Civita special field – the so called gamma metric – generated by a regular static distribution of mass-energy. Standard requirements of physical reasonableness such as, energy, matching and regularity conditions are satisfied. The model is used as a toy in investigating various issues related to the directional behavior of naked singularities in static spacetimes and the black hole (Schwarzschild) limit. 相似文献
98.
Electromagnetically induced transparency is an effect observed in atomic systems, originating from quantum interference, in which electromagnetic transitions to and from a certain quantum state become suppressed. This dark state is also characterized by a quantum phase, relative to other states, which theoretically should stop evolving, but remain phase coherent, during transparency. We test this theoretical prediction using techniques developed for liquid-state nuclear magnetic resonance quantum computation, applied to a spin-7/2 nuclear spin system. A sequence of quantum operations is applied to create the dark state, and during transparency its phase evolution is measured relative to a reference state using Ramsey interferometry. Experimental measurements of the fringe visibility are in excellent agreement with theoretical expectations, taking into account measured decoherence rates. 相似文献
99.
100.
Dessole G Bernardi L Bonini BF Capito E Fochi M Herrera RP Ricci A Cahiez G 《The Journal of organic chemistry》2004,69(24):8525-8528
A straightforward procedure for the regio- and stereoselective synthesis of alpha-hydrazino ketones is described. Manganese enolates and manganese enamines derived from ketones and from the corresponding N-sulfinylimines react with azodicarboxylate esters (DTBAD and DEAD) in a regioselective fashion to afford in good to excellent yields the kinetic alpha-hydrazino ketones as sole or highly prevalent products. When enantiopure N-sulfinyl manganese enamines were used the stereoselectivity of these reactions ranged from 40% to 68% ee. 相似文献