STUDY OF CHIROWAVES IN BIOPLASMAS UNDER RADIATION OF CELLULAR TELEPHONES

Transcripción

1 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 1 FONDECYT-REGULAR STUDY OF CHIROWAVES IN BIOPLASMAS UNDER RADIATION OF CELLULAR TELEPHONES Programa: Fondecyt Regular SUMMARYIn this project we intend to give a contribution to the study of electromagnetic waves in bioplasmas which can be a good model to simulate the neurological behavior under radiation of mobile telephones in the range 900 MHz-1800 MHz. The objective is to develop models and methodologies to solve and to analyze problems of electromagnetic wave propagation in a chiral bioplasma media by the measurement of the main electrical parameters and the implementation of computational programs and software.ina previous research (sponsored by Fondecyt , Chile) we have obtained new and interesting features and properties in unbounded chiral waves in magnetized plasma. These results are related with mode conversion, fast and slow waves and chiro Faraday rotation of polarization. (See references marked with * in the formulation of this project). The main goal of this project is to study the problem of bounded waves in two schemes of chiral waveguide: At microscopic level we consider cylindrical and helical configurations in order to characterize eingenmodes: that is cutoff frequencies, mode polarization states, mode bifurcation and mode conversion. At macroscopic level we will study resonance and coherent effects in a bioplasma substrate subject to radiation, which may simulate the neurological effects of modulated or pulsed radiation of cellular phones considering the potential negative effects of the microwave energy in the biological tissue.for the experimental work, we have considered measuring the following: power density, frecuency (carrier and any slower modulation), specific absorption rate (SAR), magnetic field produced by the pulsed signal of commonly used cellular phones.for numerical analysis we propose to broaden and adapt the two-dimensional FDTD (Finite Difference Time Domain) combined with the two-dimensional FDFD (Finite Difference Frequency Domain) which we developed for unbounded chirowave problems, getting good results. (Results of our work indicated in Ref. I-X the formulation of this project).by using the numerical methods we expect to confirm the existence of complex mode and bifurcation in order to identify regions of fast and slow wave propagation region of right-handed and left-handed polarization, which can be associated to the excitation of the biological chain molecules in the gigahertz range as athermal effects not related with the SAR.From the normalized results obtained from the above mentioned schemes, together with experimental data, we propose to characterize a chiral media as bioplasma at microwave frequencies, in order to obtain a unified and simple chiroelectrodynamical model which can take into account the main interaction between a bioplasma (microtubules and helical twisted molecules immersed in a citoplasma) and the microwave radiation of mobile phone systems.the methodology to be used in this proposal is to revise the state of the art in

2 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 2 waveguide and bioplasma, to study and select one model and required algorithms, to develop computational programs, to develop a chiroelectrodynamic model and finally to apply the developed algorithms in the chosen model to different conditions of operation of cellular and personal communication systems (PCS).V. Antecedentes # Nombre : STUDY OF CHIROWAVES IN BIOPLASMAS UNDER RADIATION OF CELLULAR TELEPHONES # Número : # Año Concurso : 2001 # Concurso : FONDECYT-REGULAR # Consejo : TECNOLOGIA # Duración : 3 años # Estado : APROBADO # Sector de Aplicación : SUMMARY In this project we intend to give a contribution to the study of electromagnetic waves in bioplasmas which can be a good model to simulate the neurological behavior under radiation of mobile telephones in the range 900 MHz-1800 MHz. The objective is to develop models and methodologies to solve and to analyze problems of electromagnetic wave propagation in a chiral bioplasma media by the measurement of the main electrical parameters and the implementation of computational programs and software. Ina previous research (sponsored by Fondecyt , Chile) we have obtained new and interesting features and properties in unbounded chiral waves in magnetized plasma. These results are related with mode conversion, fast and slow waves and chiro Faraday rotation of polarization. (See references marked with * in the formulation of this project). The main goal of this project is to study the problem of bounded waves in two schemes of chiral waveguide: At microscopic level we consider cylindrical and helical configurations in order to characterize eingenmodes: that is cutoff frequencies, mode polarization states, mode bifurcation and mode conversion. At macroscopic level we will study resonance and coherent effects in a bioplasma substrate subject to radiation, which may simulate the neurological effects of modulated or pulsed radiation of cellular phones considering the potential negative effects of the microwave energy in the biological tissue. For the experimental work, we have considered measuring the following: power density, frecuency (carrier and any slower modulation), specific absorption rate (SAR), magnetic field produced by the pulsed signal of commonly used cellular phones. For numerical analysis we propose to broaden and adapt the two-dimensional FDTD (Finite Difference Time Domain) combined with the two-dimensional FDFD (Finite Difference Frequency Domain) which we developed for unbounded chirowave problems, getting good results. (Results of our work indicated in Ref. I-X the formulation of this project). By using the numerical methods we expect to confirm the existence of complex mode and bifurcation in order to identify regions of fast and slow wave propagation region of right-handed and left-handed polarization, which can be associated to the excitation of the

3 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 3 biological chain molecules in the gigahertz range as athermal effects not related with the SAR. From the normalized results obtained from the above mentioned schemes, together with experimental data, we propose to characterize a chiral media as bioplasma at microwave frequencies, in order to obtain a unified and simple chiroelectrodynamical model which can take into account the main interaction between a bioplasma (microtubules and helical twisted molecules immersed in a citoplasma) and the microwave radiation of mobile phone systems. The methodology to be used in this proposal is to revise the state of the art in waveguide and bioplasma, to study and select one model and required algorithms, to develop computational programs, to develop a chiroelectrodynamic model and finally to apply the developed algorithms in the chosen model to different conditions of operation of cellular and personal communication systems (PCS). V. Resultados ARTICULOS # CHIRAL EFFECTS ON OPTICAL SOLITONS, MATHEMATICS AND COMPUTERS IN SIMULATION, VOL.62: , # EFECTO DE LA QUIRALIDAD SOBRE SOLITONES POLARIZADOS EN UN MEDIO ANISOTROPO, REVISTA MEXICANA DE FISICA, VOL.49:20-27, # LOS CAMPOS ELECTROMAGNETICOS EN LA TELEFONIA CELULAR, SU INTERACCION CON EL SUSTRATO NEURONAL, REVISTA DE LA FACULTAD DE INGENIERIA-UNIVERSIDAD DE TARAPACA, VOL.9:3-17, 2001.

4 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 4 # MENDIZABAL J, HUGO # VILLARROEL GONZALEZ, CARLOS HUMBERTO. # NON-LINEAR POLARIZATION AND CHIRAL EFFECTS IN BIREFRINGENT SOLITONS, PRAMANA-JOURNAL OF PHYSICS, VOL.62 (1):37-51, # SAR SIMULATION FOR CHIRAL WAVES IN HEAD MODEL, REVISTA DE LA FACULTAD DE INGENIERIA-UNIVERSIDAD DE TARAPACA, VOL.11 (1):3-9, # SOLUTION OF THE SCHRODINGER EQUATION FOR A NONLINEAR KERR MEDIUM WITH LINEAR CHIRAL ACTIVITY AND CUBIC ANISOTROPY USING THE SPLIT-STEP FOURIER METHOD, REVISTA DE LA FACULTAD DE INGENIERIA-UNIVERSIDAD DE TARAPACA, VOL.8:3-8, # THE INFLUENCE OF THE ELECTRIC FIELD OUTSIDE A RESISTIVE SOLENOID ON THE AHARONOV-BOHM EFFECT, REVISTA DE LA FACULTAD DE INGENIERIA-UNIVERSIDAD DE TARAPACA..

5 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 5 # T ASSIS, A K. EVENTOS # EFFECT OF THE CHIRALTY ON THE PROPAGATION OF POLARIZED OPTICAL SOLITONS, En: INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS OF COMPLEX MEDIA. MARRUECOS # EFFECY OF CHIRALITY ON SOLITON AN OPTICAL FIBER, En: 2º THE SECOND IMACS INTERNATIONAL CONFERENCE ON NONLINEAR EVOLUTION EQUATIONS AND WZVE PHENOMENA: COMÙTATION AND THEORY. ATHENS, ESTADOS UNIDOS DE AMERICA # EFFECY OF CHIRALITY ON SOLITON AN OPTICAL FIBER, En: 2º THE SECOND IMACS INTERNATIONAL CONFERENCE ON NONLINEAR EVOLUTION EQUATIONS AND WZVE PHENOMENA: COMÙTATION AND THEORY. ATHENS, ESTADOS UNIDOS DE AMERICA # FDTD ALGORITM USED TO CALCULATE THE RF CHIRAL WAVES IN THE HUMAN HEAD, En: BIOLOGICAL EFFECTS OF EMFs. GRECIA

6 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 6 # HERNANDEZ, H # ORTIZ VERGARA, FRANCISCO JOSE. # POLARIZED SPATIAL SOLITONS IN CUBIC CHIRAL MATERIALS, En: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUN. CAMBRIDGE, ESTADOS UNIDOS DE AMERICA # SOLUCION NUMERICA DE SOLITONES POLARIZADOS EN UN MEDIO QUIRAL, En: 2º CONGRESO INTERNACIONAL DE METODOS NUMERICOS EN INGENIERIA Y CIENCIAS APLICADAS. MEXICO INFORME FINAL # STUDY OF CHIROWAVES IN BIOPLASMAS UNDER RADIATION OF CELLULAR TELEPHONES, p.. MANUSCRITOS # A NEW BIOPLASMATIC MODEL FOR SAR DETERMINATION UNDER

7 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 7 RADIATION FROM CELLULAR PHONES, # ALGORITMO FDTD PARA LA PROPAGACION DE ONDA PLANA EN UN MEDIO QUIRAL, p. # HERNANDEZ, H # ORTIZ VERGARA, FRANCISCO JOSE. # ALGORITMO FDTD PARA LA PROPAGACION DE ONDAS EN UN MEDIO QUIRAL, 10 p. # HERNANDEZ, H # ORTIZ VERGARA, FRANCISCO JOSE. # DOCUMENTATION FOR 1D MATLAB FDTD CODE GUI_FDTD_1D,

8 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 8 # C, D TORRES. # ELECTRO-MAGNETIC RADIATION AND HEALTH ASPECTS OF MOBILE, # INFLACION, ELECTRODINAMICA QUIRAL Y LA EVOLUCION DEL UNIVERSO, 10 p.. # NONLINEAR POLARIZATION AND CHIRAL EFFECTS BIREFRINGENT SOLITONS, # SAR INDUCIDO EN UN MODELO BIOPLASMATICO QUIRAL POR RADIACION DE TELEFONOS CELUALRES, # SOLITONES QUIRALES BIREFRINGENTES EN UN MEDIO ANISOTROPICO, 2003.

9 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 9 # STOKES PARAMETERS OF ELLIPTICALLY SPATIAL SOLITONS IN CHIRAL MATERIALS, # THE DOUBLE-HELIX MOLECULE LIKE AN EXACTLY SOLVABLE CHIRAL MODEL,. # MENDIZABAL, H. # TIME- DOMAIN ANALYSIS OF MICROWAVE STRUCTURES USING MATLAB,. # C, D TORRES. REVISTA TESIS # ANALISIS DE LA PROPAGACION DE ONDAS ELECTROMAGNETICAS EN MEDIOS QUIRALES MEDIANTE ELMETODO FDTD, Profesor Guia:

10 CONICYT: Repositorio Institucional: Ficha de Iniciativa de CIT (Ciencia, Tecnología e Innovación) 10 TORRES SILVA, HECTOR RAMON. # ORTIZ VERGARA, FRANCISCO JOSE. # MATRIZ DIGITAL DE UN MODELO DE CABEZA PARA LA OBTENCION DEL SAR, # SOTO ESCOBAR, MAXIMO.