Second-Order Abstract Categorial Grammars as Hyperedge Replacement Grammars

2009 ◽  
Vol 19 (2) ◽  
pp. 137-161 ◽  
Author(s):  
Makoto Kanazawa
Keyword(s):  
Second Order ◽  
Categorial Grammars ◽  
Hyperedge Replacement

scholarly journals Non-linear Second Order Abstract Categorial Grammars and Deletion

10.29007/644d ◽  
2018 ◽  
Author(s):  
Sylvain Salvati
Keyword(s):  
Natural Language ◽  
Second Order ◽  
Categorial Grammars ◽  
Non Linear ◽  
Intersection Types ◽  
Coherence Spaces

We prove that non-linear second order Abstract Categorial Grammars(2ACGs) are equivalent to non-deleting 2ACGs. We prove this resultfirst by using the intersection types discipline. Then we explainhow coherence spaces can yield the same result. This result showsthat restricting the Montagovian approach to natural languagesemantics to use only $\L I$-terms has no impact in terms of thedefinable syntax/semantics relations.

Disappearance Voltage Determinations Using a Convergent Beam

1971 ◽  
Vol 29 ◽  
pp. 184-185
Author(s):  
W. L. Bell
Keyword(s):  
Second Order ◽  
Objective Method ◽  
Uniform Thickness ◽  
Rocking Curve ◽  
Crystal Perfection ◽  
Kikuchi Line ◽  
Central Maximum ◽  
Diffraction Patterns ◽  
Convergent Beam ◽  
Beam Technique

Disappearance voltages for second order reflections can be determined experimentally in a variety of ways. The more subjective methods, such as Kikuchi line disappearance and bend contour imaging, involve comparing a series of diffraction patterns or micrographs taken at intervals throughout the disappearance range and selecting that voltage which gives the strongest disappearance effect. The estimated accuracies of these methods are both to within 10 kV, or about 2-4%, of the true disappearance voltage, which is quite sufficient for using these voltages in further calculations. However, it is the necessity of determining this information by comparisons of exposed plates rather than while operating the microscope that detracts from the immediate usefulness of these methods if there is reason to perform experiments at an unknown disappearance voltage.The convergent beam technique for determining the disappearance voltage has been found to be a highly objective method when it is applicable, i.e. when reasonable crystal perfection exists and an area of uniform thickness can be found. The criterion for determining this voltage is that the central maximum disappear from the rocking curve for the second order spot.

Second order interference in two photon absorption

1996 ◽  
Vol 43 (9) ◽  
pp. 1765-1771 ◽  
Author(s):  
M. W. HAMILTON and D. S. ELLIOTT
Keyword(s):  
Second Order ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon
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