In the context of a world energy crisis, only solution to control situation is in management energy. One most important keys optimization electrical components. This article presents complete numerical and experimental study aiming for water heaters household use. The conceives minimization consumption simultaneously with time heat water. Firstly, thermal model well adapted case constructed val...

Histopathological studies of the conduction system were related to His bundle electrogram recordings in seven patients with acute myocardial infarction and atrioventricular (A-V) conduction disturbances. The three patients with inferior infarctions had normal width QRS complexes and delay or block of the impulses above the His bundle. Recent ischemic changes were present in the A-V node in two ...

Re-entry within the His-Purkinje system (HPS) was consistently observed in 15/24 consecutive patients in whom retrograde refractory period studies were performed using His bundle electrograms and the ventricular extrastimulus method. Within a narrow range of ventricular coupling intervals (V,V2), V, retrogradely conducted to the bundle of His (H2) with significant infra-His bundle conduction de...

for the first time in the minkowski space, an rn 1 time-like complementary ruled surface isdescribed and relations are given connected with an asymptotic and tangential bundle of the time-likecomplementary ruled surface. furthermore, theorems are given related to edge space, central space andcentral ruled surface of this complementary ruled surface.

We examined the characteristics, long-term follow-up, and prognosis of right bundle branch block (RBBB) detected on a routine ECG in men with no apparent heart disease. During the 29-year period, 59 cases of RBBB were observed in men with a mean age of 44.4 ± 1.9 years. Because marked right or left axis deviation may identify cases with concomitant involvement of the left bundle branch system, ...

Atrial fibrillation is one of the most frequent arrhythmias diagnosed in clinical practice and it is also relatively common in dialysis patients. Atrioventricular and intraventricular conduction disturbances are less investigated in hemodialysis patients and data about their prevalence are insufficient. The objective of this study was to determine the prevalence of atrial fibrillation, atrioven...

Abstract A boiler is one of the most significant components in a steam power plant system, as from used to crank turbine, which drives an electric generator. sootblower piece equipment that cleans ash and scale has built up on pipes. The heat-transfer pipes have been reduced. When soot builds or riser boiler’s walls, heat transfer impeded, resulting less transfer. amount produced by will decrea...