Objective Pregnancy in women with surgically corrected tetralogy of Fallot (ToF) is associated with cardiac, obstetric and neonatal complications. We compared uteroplacental Doppler flow (UDF) measurements and pregnancy outcome in women with ToF and in healthy women and aimed to assess whether a relationship exists between cardiac function and UDF in women with ToF. Methods We evaluated prospec...

In this paper, numerical investigation of upward two phase flow of air-water has been studied. Different conditions of flow regimes including annular, wispy annular, slug, churn and bubbly are simulated based on Hewitt and Roberts map, and a good agreement between the experimental data of the map and the numerical simulation has been observed. Accordingly, a proper CFD model in CFD software of ...

User Defined Functions (UDF) are an important feature of analytical SQL as they allow processing of data right inside of relational queries. Typically UDFs have to be written in a special language which sometimes diminishes their practical use, especially when required libraries are not available in this language. An alternative approach is to allow users to provide functions as native low-leve...

Cloud computing has demonstrated that processing very large datasets over commodity clusters can be done simply given the right programming model and infrastructure. In this paper, we describe the design and implementation of the Sector storage cloud and the Sphere compute cloud. In contrast to existing storage and compute clouds, Sector can manage data not only within a data center, but also a...

Advances in digital design and fabrication technologies are leading toward single fabrication systems capable of producing almost any complete functional object. We are proposing a new paradigm for manufacturing, which we call Universal Desktop Fabrication (UDF), and a framework for its development. UDF will be a coherent system of volumetric digital design software able to handle infinite comp...

Abstract For the sake of study applicability PEMFC on ships, a three-dimensional single channel fuel cell model was established. The vibration load loaded through dynamic grid technology and user-defined function (UDF) method. output voltage reactive gas distribution in different directions were compared analyzed. results show that ship will affect transmission components battery, resulting inc...

Bike-sharing systems are a rapidly developing mode of transportation and provide an efficient alternative to passive, motorized personal mobility. The asymmetric nature bike demand causes the need for rebalancing stations, which is typically done during nighttime. To determine optimal starting inventory level station given day, User Dissatisfaction Function (UDF) models user pickups returns as ...

The major objective of the present study is to verify a method for FLUENT code applying user defined function (UDF) which enables coupling simulation neutronics and thermal-hydraulics molten salt fast reactor based on one-point kinetics. UDF with added logic control rod drive (CRD) linked analyze reactivity change when fuel pump MSRE was started tripped. These experiments were carried out under...

Centrifugal compressors produce high pressure ratio and rotate at speeds. So, a tiny unbalance can produce severe vibration. In this paper, effects of impeller gap on rotor vibration in a high speed centrifugal compressor is investigated. For this purpose, a numerical and experimental analysis are carried out. The moving reference frame method in FLUENT software is used for modeling of geometri...

A wave glider can convert vertical motion into its forward propulsion. There are many factors affecting the propulsion performance of a glider. The swing amplitude hydrofoil affect efficiency to capture energy, and pull direction an umbilical cable transmission energy. In this paper, optimized mechanism with self-adjusting lower limit (SALL) was proposed by analyzing un- synchronized movement b...