47 research outputs found
Shell model description of normal parity bands in odd-mass heavy deformed nuclei
The low-energy spectra and B(E2) electromagnetic transition strengths of
159Eu, 159Tb and 159Dy are described using the pseudo SU(3) model. Normal
parity bands are built as linear combinations of SU(3) states, which are the
direct product of SU(3) proton and neutron states with pseudo spin zero (for
even number of nucleons) and pseudo spin 1/2 (for odd number of nucleons). Each
of the many-particle states have a well-defined particle number and total
angular momentum. The Hamiltonian includes spherical Nilsson single-particle
energies, the quadrupole-quadrupole and pairing interactions, as well as three
rotor terms which are diagonal in the SU(3) basis. The pseudo SU(3) model is
shown to be a powerful tool to describe odd-mass heavy deformed nuclei.Comment: 11 pages, 2 figures, Accepted to be published in Phys. Rev.
Everything old is new again: Quoted Domain Specific Languages
We describe a new approach to domain specific languages (DSLs), called Quoted
DSLs (QDSLs), that resurrects two old ideas: quotation, from McCarthy's Lisp of
1960, and the subformula property, from Gentzen's natural deduction of 1935.
Quoted terms allow the DSL to share the syntax and type system of the host
language. Normalising quoted terms ensures the subformula property, which
guarantees that one can use higher-order types in the source while guaranteeing
first-order types in the target, and enables using types to guide fusion. We
test our ideas by re-implementing Feldspar, which was originally implemented as
an Embedded DSL (EDSL), as a QDSL; and we compare the QDSL and EDSL variants
Consumers\u27 Perceptions Of Fairness And The Resultant Effect On Customer Satisfaction
This study investigated the effects of interactional, distributive, and procedural fairness on overall fairness and customer satisfaction and of overall fairness on customer satisfaction across a broad spectrum of service encounter outcomes within the service sector, not just in the context of a service failure. Nearly 50% of those encounters recalled represented hospitality and leisure businesses exclusively. The model tested here has been adapted from a larger theoretical model of the customer\u27s path to loyalty which is an adaptation of previous models of the service profit chain, customer satisfaction with service failure and recovery, and complaint handling relationships. This research provides practical information that can lead to a better understanding of customers\u27 evaluation methods and be used to guide the formation of improved service strategies that provide fairness, a key to satisfaction in hospitality, leisure and service sector affiliated businesses. © 2006 by The Haworth Press, Inc. All rights reserved
Hazard management in structural integrity Vol 5, performance standards
SIGLEAvailable from British Library Document Supply Centre-DSC:6244.385(98-152) / BLDSC - British Library Document Supply CentreGBUnited Kingdo
JavaScript as an Embedded DSL
Abstract. Developing rich web applications requires mastering different environments on the client and server sides. While there is considerable choice on the server-side, the client-side is tied to JavaScript, which poses substantial software engineering challenges, such as moving or sharing pieces of code between the environments. We embed JavaScript as a DSL in Scala, using Lightweight Modular Staging. DSL code can be compiled to JavaScript or executed as part of the server application. We use features of the host language to make client-side programming safer and more convenient. We use gradual typing to interface typed DSL programs with existing JavaScript APIs. We exploit a selective CPS transform already available in the host language to provide a compelling abstraction over asynchronous callback-driven programming in our DSL