RSS feed 

View All

Validation of the multiscale mixed finite-element method
Subsurface reservoirs generally have a complex description in terms of both geometry and geology. This poses a continuing challenge in modeling and simulation of petroleum reservoirs owing to variations of static and dynamic properties at different length scales. Multiscale methods constitute a promising approach that enables efficient simulation of geological models while retaining a level of ...


Performance analysis of a 3D unstructured mesh hydrodynamics code on multi-core and many-core architectures
Several next generation high performance computing platforms are or will be based on the so-called many-core architectures, which represent a significant departure from commodity multi-core architectures. A key issue in transitioning large-scale simulation codes from multi-core to many-core systems is closing the serial performance gap, that is, overcoming the large difference in single-core pe...
Strong Stability Preserving General Linear Methods
We investigate the strong stability preserving (SSP) general linear methods with two and three external stages and (s) internal stages. We also describe the construction of starting procedures for these methods. Examples of SSP methods are derived of order (p=2, p=3), and (p=4) with (2le sle 10) stages, which have larger effective Courant–Friedrichs–Levy coefficients than the class of two-s...


Simulation of SPDEs for Excitable Media Using Finite Elements
In this paper, we address the question of the discretization of stochastic partial differential equations (SPDEs) for excitable media. Working with SPDEs driven by colored noise, we consider a numerical scheme based on finite differences in time (Euler–Maruyama) and finite elements in space. Motivated by biological considerations, we study numerically the emergence of reentrant patterns in ex...
Construction of Convergent High Order Schemes for Time Dependent Hamilton–Jacobi Equations
We construct a class of convergent high order schemes for time dependent Hamilton–Jacobi equations. In general, high order schemes such as WENO scheme achieve high order accuracy in smooth regions of the solution and an essentially non-oscillatory resolution at singularities of the solution, but despite its good numerical properties, the convergence to the viscosity solution could not be expe...


Frequency distribution of autoimmunity associated FCGR3B gene copy number in Indian population
Amongst several human genome variations, copy number variations (CNVs) are considered as an important source of variability contributing to susceptibility to wide range of diseases. Although CNV is scattered for genes throughout the human genome, several of autoimmunity related genes have CN variation and therefore play an important role in susceptibility to autoimmune diseases. The association...
Dynamic characteristics of planar bending actuator embedded with shape memory alloy
Planar bending actuators embedded with a shape memory alloy (SMA) are a novel type of actuator capable of outputting high bending angle and bending moment. This actuator has a simple structure and high power–weight ratio, which enable it to have wide-ranging applications in the field of biomimetic robots, including biomimetic fish fins and soft robots. However, the existing mechanical model o...

The Delay Effect in a Stochastic Multiplier–Accelerator Model
This paper extends the classical Samuelson multiplier–accelerator model for national economy. Actually, this new modeling structure removes the basic shortcoming of the original model producing stable business cycles when realistic values of the parameters (multiplier, accelerator) are entered into the system of equations. Under this new approach, we introduce some kind of randomness and memo...
Protection Factor for N95 Filtering Facepiece Respirators Exposed to Laboratory Aerosols Containing Different Concentrations of Nanoparticles
A previous study used a PortaCount Plus to measure the ratio of particle concentrations outside (C out) to inside (C in) of filtering facepiece respirators (FFRs) worn by test subjects and calculated the total inward leakage (TIL) (C in/C out) to evaluate the reproducibility of the TIL test method between two different National Institute for Occupational Safety and Health laboratories (Laborato...

Blessing or Curse: Impacts of the Brazilian Pre-Salt oil exploration
The discoveries of oil and gas in the so-called “Pre-Salt layer” has triggered a lot of discussions about their economic effect. In this paper we discuss in detail a less discussed dimension: the impact of Pre-Salt layer in the structure of the Brazilian economy, especially the composition of the industry and of exports. Similar consequences in the country of “Dutch disease” and “dein...
Total costs and clinical outcome of hematopoietic stem cell transplantation in adults with leukemia: comparison between reduced-intensity and myeloablative conditioning
The total costs of hematopoietic stem cell transplantation (HSCT) including direct non-medical and indirect costs and the financial impact of HSCT on the households of are elusive. Between 2005 and 2012, we analyzed 191 HSCT in adult patients with leukemia with reduced-intensity conditioning (RIC) regimen (n=79) and with myeloablative conditioning (MAC) regimen (n=112). The direct medical costs...

Relationship between Sarcopenia, Six Minute Walk Distance And Health Related Quality Of Life In Liver Transplant Candidates
Sarcopenia, or loss of skeletal muscle mass, is associated increased mortality and morbidity in liver transplant (LT) candidates. Six minute walk distance (6MWD) and health-related quality of life (HRQOL) as assessed by short form 36 scores (SF-36) also impact clinical outcomes in these patients. This study explored the relationship between the sarcopenia, 6MWD, and HRQOL in LT candidates. Sarc...
Is allogeneic transplantation really the best treatment for FLT3-ITD positive acute myeloid leukemia? a systematic review
The detection of fetal liver tyrosine kinase 3 (FLT3) internal tandem duplications (ITDs) has been used as a powerful adverse prognostic indicator for acute myeloid leukemia (AML) in any age group. Evidence is mixed regarding the effects of allogeneic transplantation (allo-HSCT) in first complete remission (CR) for patients with FLT3/ITD AML. To fill this gap, this study provides a systematic r...
Treatment of Antibody Mediated Rejection in Renal Transplant Patients: A Clinical Practice Survey
Preferences for the testing and treatment of antibody mediated rejection (AMR) in renal transplant patients varies amongst programs and individual practitioners. The description of these preferences and identification of commonalities can contribute to creating a standard of care. A survey was distributed through the Transplant Listserv of the American College of Clinical Pharmacy (ACCP) and vi...
Seasonal and inter-annual variability of western subtropical mode water in the South Pacific Ocean
The seasonal and inter-annual variability of the western subtropical mode water (hereafter STMW) in the South Pacific Ocean was examined using the Bluelink ReANalysis 2.1 (BRAN2.1) in terms of heat budget. The analysis of heat content change suggested that the seasonal cycle of surface heat flux played a dominant role in the formation of the STMW in the South Pacific Ocean. However, the surface...