Intersection homology is obtained from ordinary homology by imposing conditions on how the embedded simplices meet the strata of a space X . In this way, for the middle perversity, properties such as strong Lefschetz are preserved. This paper defines local-global intersection homology groups, that record global information about the singularities of X . They differ from intersection homology in...

Coastal aquifers of Andhra Pradesh form a part of a discontinuous strip of alluvium along the East Coast of India. These aquifers comprise ridge like features generated by tidal action and the deltaic fluvial deposits. They show many of the characteristic morphological features of stream and deltaic sediments, like channel bars, levees, etc., Their maximum thickness is reported to be around 400...

110/60 mmHg and pulse rate 130/min and regular. Results of laboratory investigations were normal. S. flexneri type 2a was later isolated from the stool. Treatment was started with ampicillin 250 mg every 8 hours orally. Six hours after admission she had a grand mal seizure and shortly thereafter became apnoeic and unresponsive to noxious stimulation. The pupils were widely dilated (6 mm) and fi...

Extracting instantaneous frequency (IF) of Micro-Doppler (M-D) is the key to estimating micro-motion parameters. In this paper, firstly, the micro-motion model of coning was set up. Meanwhile, the theoretical analysis and derivation of micro-Doppler were performed. Then we introduced occlusion effect and Time Frequency transform to better accord with the complexity and reality of feature extrac...

The dynamic stability and equilibrium conditions of a parachute are studied using a six degree of freedom dynamic model that includes apparent inertia effects. Existing parachute dynamic models are discussed and the selection of a relevant model is shown. The chosen dynamic model that incorporates apparent inertia is summarized and used for analysis. The moments on the parachute system caused b...

This paper presents a method for optimizing oil production on large scale production networks such as the Troll west field in the North Sea. The method is based on piecewise linearization of all nonlinearities, and on decomposition of the full scale problem into smaller sub-problems. Column generation in a Branch & Price framework is used to solve the decomposed problem. The methods differs fro...

This paper provides an overview of the primary strapdown inertial system computational elements and their interrelationship. Using an aircraft type strapdown inertial navigation system as a representative example, the paper provides differential equations for attitude, velocity, position determination, associated integral solution functions, and representative algorithms for system computer imp...

A tower is a sequence of simplicial complexes connected by simplicial maps. We show how to compute a filtration, a sequence of nested simplicial complexes, with the same persistent barcode as the tower. Our approach is based on the coning strategy by Dey et al. (SoCG 2014). We show that a variant of this approach yields a filtration that is asymptotically only marginally larger than the tower a...

In this paper, we offer an overview of a number results on the static rigidity and infinitesimal discrete structures which are embedded in projective geometric reasoning, representations, transformations. Part I considers fundamental case bar–joint framework d-space places particular emphasis invariance rigidity, coning between dimensions, transfer to spherical metric, slide joints pure conditi...