Abstract A soft x-ray reflectivity beamline is operational on Indus-2 synchrotron source since 2016 for reflectivity, transmission and absorption measurements in 100-1500 eV photon energy range. To perform spectroscopic experiments 60-1000 spectral range a emission spectrometer (SXES) designed which will serve as an additional experimental station the beamline. The SXES setup using aberration c...

• Honeycomb structures with various nominal densities are 3D printed from TPU. Strength, energy absorption, and strain recoverability of the characterized. Graded fabricated by stacking multiple density layers honeycombs. Density-graded possess superior load-bearing response at large deformations. widely used in applications that require excellent mitigation low structural weights. The absorpti...

in this paper a new guidance technique for ballistic missiles and launch vehicles is proposed. generally the lambert guidance is used to generate missile nominal (correlated) parameters through powered flight to put it in a ballistic flight path. because of uncertainties and undesired factors, the nominal position and velocity obtained by lambert technique need to be followed in actual flight. ...

Higher-order pattern unification and nominal unification are two approaches to unifying modulo some form of α-equivalence (consistent renaming of bound names). Though the higher-order and nominal approaches superficially dissimilar, there is a natural concretion (or name-application) operation for nominal terms that can be used to simulate the behavior of higher-order patterns. We describe a fo...

We introduce formal languages over infinite alphabets where words may contain binders. We define the notions of nominal language, nominal monoid, and nominal regular expressions. Moreover, we extend history-dependent automata (HD-automata) by adding stack, and study the recognisability of nominal languages.

Nominal sets, presheaf categories, and named sets have successfully served as models of the state space of process calculi featuring resource generation. More recently, automata built in such categories have been studied as acceptors of languages of finite words over infinite alphabets. In this paper we investigate automata whose state spaces are nominal sets, and that accept infinite words. Th...

Nominal unification is proven to be quadratic in time and space. It was so by two different approaches, both inspired by the Paterson-Wegman linear unification algorithm, but dramatically different in the way nominal and first-order constraints are dealt with. To handle nominal constraints, Levy and Villaret introduced the notion of replacing while Calvès and Fernández use permutations and sets...

one of the most important and brilliant aspects in each language is the collocation that finally add up to lexical coherence . coming together in semantics considers as one of the semantic relationships at lexical level that appears at all languages , and doesnt specialize for a certain language . mean while .the study of pre-islamic period poem about coming together is a significant affair . t...

An acute toxicity study of aluminium at low pH, using one-year-old rainbow trout (Salmo gairdneri R.), was performed in a closed recirculating system at pH 5.2, 5.4, and 5.6 with nominal concentrations of 0, 100, 200, and 400/tg A1/I. Mortality (96 h) was dependent on the pH and aluminium concentration. Measurements of aluminium in the plasma of exposed fish, by electrothermal atomic absorption...