OBJECTIVE Assess the performance of self-expanding venous cannulas for routine use in open-heart surgery. METHODS Prospective study in 100 unselected consecutive patients undergoing open-heart surgery with either remote or central smart venous cannulation. RESULTS The study focuses on the 76 consecutive adult patients (mean age 59.2+/-17.3 years; 60 males, 16 females) undergoing surgical pr...

This investigation presents the effect of various parameters on foam stability and its rheological properties. The underlying idea of this experiment is generating of drilling foam with uniform bubbles. The main problem of foam using is controlling its stability during field application. The most important parameters which cause Instability in foam are gravity drainage, gas diffusion and bu...

Heavy oil reservoirs are often characterized by high viscosity and poor mobility, which is more complex with the presence of bottom water. The conventional vertical well development method has low recovery efficiency limited controlled reserves a single well. In addition, water cut can increase dramatically when edge-bottom breaks through. Horizontal CO2 huff-n-puff an effective alternative mod...

Production of highly viscous tar sand bitumen using Steam Assisted Gravity Drainage (SAGD) with a pair of horizontal wells has advantages over conventional steam flooding. This paper explores the use of Artificial Neural Networks (ANNs) as an alternative to the traditional SAGD simulation approach. Feed forward, multi-layered neural network meta-models are trained through the Back-Error-Propaga...

Summary We evaluated the clinical outcomes for ophthalmic endoscope-assisted vitrectomy in consecutive patients with uncomplicated rhegmatogenous retinal detachment (RRD). The primary success rate was 98.4% (125/127) without performing a posterior drainage retinotomy or using perfluorocarbon liquids (PFCL) for subretinal fluid drainage. Purpose To investigate the clinical outcomes of endoscop...

Gravity drainage is the main mechanism which controls the oil recovery from fractured reservoirs in both gas-cap drive and gas injection processes. The liquid bridge formed between two adjacent matrix blocks is responsible for capillary continuity phenomenon. The accurate determination of gas-liquid interface profile of liquid bridge is crucial to predict fracture capillary pressure precisely. ...

As an option to improve the ultimate oil recovery factor of Rang Dong field, a feasibility study gas-assisted gravity drainage (GAGD) application was carried out for fractured basement reservoir with single-well Huff ‘n’ Puff pilot test applied on high water-cut producer. This paper aims provide in-depth understanding about such case study, which includes details candidate selection, gas inject...

Nomenclature Historical Pages-1.80 m , AVD is unlikely to be required, and, therefore, 2 should not be routinely included in the CPB circuit unless required intraoperatively. This rationale would also have cost-saving implications. Our study also suffers a number of limitations. First, despite all data being prospectively recorded, it has been analysed retrospectively. Second, the patients were...