in this study, a hybrid intelligent model has been designed to predict groundwater inflow to a mine pit during its advance. novel hybrid method coupling artificial neural network (ann) with genetic algorithm (ga) called ann-ga, was utilised. ratios of pit depth to aquifer thickness, pit bottom radius to its top radius, inverse of pit advance time and the hydraulic head (hh) in the observation w...

Where V is the volume of the tank [m3], Qin & Qe are respectively the inflow rate and outflow rate [m3d-1]; CT,in & CT are concentrations in the inflow and outflow, respectively [g m-3]; krem , ksed , kbiodeg and kvol are the overall pseudo first order in-stream removal, sedimentation, biodegradation and volitalization rate constants, respectively [d-1] ; Sexternal is the external source due to...

Inferior vena cava (IVC) leiomyosarcoma represents an extremely rare disease that commonly involves the segment between the inflow of the renal veins and the inflow of the hepatic veins (46% of cases). We report the case of a patient affected by an IVC leiomyosarcoma, treated with surgical resection, caval reconstruction with polytetrafluoroethylene (PTFE), and right nephrectomy, followed by ex...

Hypothermic animals subjected to total venous inflow occlusion and open eardiotomy develop elevations in right atrial mean pressure and postmortem evidences of myocaidial failure. Acetyl strophanthidin, given before inflow stasis, prevented myocardial failure and increased survival. Myocardial failure was attributed to anoxia resulting from decreased coronary blood flow and alterations in the o...

Analyzing the effect of influencing factors on carbon emissions in construction industry is significant for reduction. The are dynamic at various stages while long-term impact has not been discussed depth most existing studies. Taking 30 provinces China as examples, PVAR model used to study emissions. include building area, value unit indirect intensity, per energy consumed, intensity and total...

The analog technique is applied to the analysis of flood runoff. A quasi-linear analog model has been developed for simulating the runoff-producing characteristics of a drainage system. Where storage is linear a unique relationship correlating the inflow and outflow peaks is derived. A technique for synthesizing flood-frequency distribution is also proposed, whereby the effects of a linearor a ...

We report a rare case of constrictive pericarditis that stimulated a large mediastinal tumor obstructing the right ventricular inflow tract. A 58-year-old woman was referred to our hospital because of a recent increase of dyspnea and facial edema. Computed tomography revealed severely thickened calcification, including a low-density area, presenting as a mediastinal tumor, compressing the right...

Background The normal pattern of left ventricular (LV) inflow and ejection of affects the efficiency of cardiac pumping performance. Altered inflow direction due to a corrected atrioventricular septal defect (AVSD) may disturb this pattern leading to decreased efficiency. We aimed to quantitatively describe the LV blood flow pattern using 4-dimensional velocity-encoded cardiac magnetic resonanc...

A51-year-old woman was referred for evaluation of an asymptomatic systolic murmur. Transthoracic echocardiography showed a large right atrial (RA) mass with intermittent prolapse through the tricuspid valve and extending into the pulmonary artery. On the preoperative transesophageal echocardiographic examination, a tumor with multiple strands was seen. One strand intermittently obstructed the o...

It is well known that for a mixed initial-boundary hyberbolic system to be well-defined it is necessary to impose additional boundary conditions only on the inflow eigenspace of the problem. We prove the discrete analogue of the above concerning difference approximations to such a system; that is, imposing numerical boundary conditions which are at least zeroth-order accurate with an inflow par...