A Hybrid Continuous-Discrete Model of Tumour-Induced Angiogenesis is Solved Numerically in Parallel and Performance Improvements Analysed
Issue:
Volume 3, Issue 5, October 2015
Pages:
27-37
Received:
30 August 2015
Accepted:
22 September 2015
Published:
13 October 2015
Abstract: The main aim of this paper is to investigate the potential performance improvements gained from a serial versus parallel implementation of the numerical solution to a system of coupled nonlinear PDEs describing tumour-induced angiogenesis. After applying a suitable finite difference scheme, the resulting hybrid continuous discreet model is solved based on a set of cellular rules defining endothelial cell movement towards a tumour. In addition, the model explicitly incorporates the processes of branching, anastomosis and cell proliferation. Parallel implementations are based on the CUDA programming model with a detailed look at efficient thread deployment and memory management. Results show substantial speedups for the CUDA C language against that of conventional high performance languages, such as C++. Such increased performance highlights the potential for simulating more complex mathematical models of tumour dynamics, such as vascularisation networks, tumour invasion and metastasis, leading to the potential for more rapid experimental results for a range of complex cancer models.
Abstract: The main aim of this paper is to investigate the potential performance improvements gained from a serial versus parallel implementation of the numerical solution to a system of coupled nonlinear PDEs describing tumour-induced angiogenesis. After applying a suitable finite difference scheme, the resulting hybrid continuous discreet model is solved b...
Show More
Acoustic Method of Colorado Beetle Elimination and It’s Realization
Galyna Ivanovna Sokol,
Tatyana Leonidovna Savchuk,
Vladislav Valerievich Anisimov
Issue:
Volume 3, Issue 5, October 2015
Pages:
38-42
Received:
19 January 2015
Accepted:
29 March 2015
Published:
19 October 2015
Abstract: In this article the specific influence of the acoustic waves on the organisms living beings is examined. It is known that the most important resonance frequencies of human organs are in the frequency range 0.5-20 Hz. And protection against the harmful acoustic waves on the human body may be only if a person is located in an acoustic field with a frequency, which does not coincide with the resonant frequency of the person. On the contrary, we can use the influence of acoustic fields on organisms of plant pests with the frequency that corresponds to the resonant frequency of body of pests. Then the acoustic field will have a devastating effect on the plant pest. In the laboratory the deaths of the Colorado beetle under the influence of vibratory oscillation and acoustic vibrations were detected. The method and the device for its implementation were developed and described below. The author has registered in the Patent Office of Ukraine "Acoustic Solution Colorado Beetle and Device for Performing" № 25548 A 01 M 1/04, 1/18 October 30, 1998. The elimination of the Colorado beetle by influencing its body by acoustic vibrations leads to a decrease in complexity of operation while excluding toxicity. The experiment was conducted under the conditions of agricultural area using a model of the transmitter.
Abstract: In this article the specific influence of the acoustic waves on the organisms living beings is examined. It is known that the most important resonance frequencies of human organs are in the frequency range 0.5-20 Hz. And protection against the harmful acoustic waves on the human body may be only if a person is located in an acoustic field with a fr...
Show More
