This article reports the active control of base flows using the experimental procedure. Active control of base pressure helps in reducing the base drag in aerodynamic devices having suddenly expanded flows. Active control in the form of microjets having 0.5 mm radius placed at forty-five degrees apart is employed to control the base pressure. The Mach numbers of the present analysis are 1.7, 2....

The power consumption of wireless access networks will become an important issue in the coming years. In this paper the power consumption of base stations for mobile WiMAX, fixed WiMAX and UMTS is modelled. This power consumption is evaluated in relation to the coverage. For a physical bit rate of 2 Mbps, a power consumption of approximately 5600 W and a range of 1 km is obtained with UMTS. Fix...

The existence of torsion, as well as consideration of the Soil-Structure Interaction (SSI), increase the natural periods of the structure resulting from a subsequent decrease in the seismic demand of the system. This paper summarizes the probabilistic assessment for evaluation of collapse fragility curves in concrete moment resisting structure with different mass center eccentricities. A 12-sto...

Table-based scalar multiplication provides practical security for ECDSA signature generation. However, a novel key recovery attack against this form of generation that exploits the collisions between entries was recently proposed at CHES 2021. This is possible even if table are unknown, such as with random permutated entry ordering. In paper, we enhance efficiency secure based on fixed-base com...

The composition of gastric and pancreatic juices and the effects of their loss on the composition of the body fluids were studied. Loss of gastric juice by removing water and chloride ions only partly neutralized by fixed base results in dehydration and alkalosis. Loss of pancreatic juice by removing water and a relative excess of fixed base results in dehydration and acidosis. Normal condition...

Purpose The purpose of our study was to determine the effectiveness of 4 weeks fixed and mixed intermittent hypoxic training (IHT) and its difference from exercise training at sea-level on exercise load, respiratory metabolic and acid-base response of capillary blood during 80% maximal heart rate (HRmax) bicycle exercise in male elite Taekwondo players. Methods Male elite Taekwondo players (n...

This contribution is devoted to the study of positional numeration systems with negative base introduced by Ito and Sadahiro in 2009, called (−β )-expansions. We give an admissibility criterion for more general case of (−β )-expansions and discuss the properties of the set of (−β )-integers, denoted by Z−β . We give a description of distances within Z−β and show that this set can be coded by an...

This study aims to quantify effects of hanging-wall/footwall fault parameters on dynamic responses base-isolated and base-fixed ancient timber buildings. Finite element models a real building with without isolation technology are first built verified by comparison existing studies. Fitting analysis three typical models, Abrahamson-Silva-Kamai, Campbell-Bozorgnia Chiou-Youngs as well 622 recorde...

We show that a conjectural extension of a fixed point formula in Arakelov geometry implies results about a tautological subring in the arithmetic Chow ring of bases of abelian schemes. Among the results are an Arakelov version of the Hirzebruch proportionality principle and a formula for a critical power of ĉ1 of the Hodge bundle. 2000 Mathematics Subject Classification: 14G40, 58J52, 20G05, 20...