scholarly journals Equivalent Test Method for Strong Electromagnetic Field Radiation Effect of EED

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Biao Wang ◽  
Yongwei Sun ◽  
Xuetian Wang ◽  
Guanghui Wei ◽  
Hongmin Gao
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Radiation ◽  
Field Intensity ◽  
Temperature Increase ◽  
Ignition Temperature ◽  
Radiation Safety ◽  
Test Method ◽  
Strong Electromagnetic Field ◽  
Field Radiation ◽  
Equivalent Test

The present study proposed the equivalent test method for the strong electromagnetic field radiation of electric explosive devices (EEDs) of the weapon equipment to satisfy the military requirements of the electromagnetic radiation safety test, as well as the evaluation of the electric ignition, the electric initiation ammunition, or missiles. Under stable conditions, the ignition excitation test and the bridge wire temperature increase test were performed to determine the ignition temperature of the EED. As radiated by the strong electromagnetic field, the relationship between the temperature increase of the bridge wire and the electric field intensity of the EED was developed based on the theoretical analysis and the experimental test. Given the ignition temperature of the EED, the radiation field intensity of the EED at 50% ignition was determined. As compared with the 50% ignition field intensity of the EED directly radiated by the strong electromagnetic field, an error less than 1 dB was caused. On that basis, the correctness of the equivalent test method was verified. Accordingly, this method was suggested to act as an effective method and technical means to test and evaluate the electromagnetic radiation safety of ammunition and missiles in unfavorable electromagnetic environments.

scholarly journals TINGKAT RADIASI ELEKTROMAGNETIK BEBERAPA LAPTOP DAN PENGARUHNYA TERHADAP KELUHAN KESEHATAN

2014 ◽  
Vol 1 (2) ◽  
Author(s):  
Debby Thandung
Keyword(s):  
Electromagnetic Field ◽  
Electromagnetic Radiation ◽  
Health Condition ◽  
Health Issue ◽  
Radiation Level ◽  
Cross Sectional ◽  
Field Radiation ◽  
Risk Of Exposure ◽  
Research Show

Abstract:Applying physics electromagnetic radiation especially radiation from laptop is important to know about how to prevent it or reduce the risk of exposure body with radiation. The complain about health condition that usually happened are headacne, pain in muscle, lazy eyes and insomnia. The purpose of this research is to measuring electromagnetic radiation level of some laptop and also it’s effect to health issue. Methods of this research is the descriptive with cross sectional device. The reasearch is located at Pertamina building and Rusunawa around Sam Ratulangi University’s Campus Manado. Samples are 35 laptop of 35 respondent. The data was acquired by using questionnaire and measuring electromagnetic radiation level using Electromagnetic Field Radiation Tester. Analysing data using spearman corelation test.The results of this research show the highest rate of electromagnetic radiation at 0,01-0,10 μT are 27 laptop (77%), mean while the lowest at 0,41-0,50 μT and the most issue that found is lazy eyes with number of 29 people (83%). The results of spearman corelation test show there is no relationship that have a meaning between laptop radiation level with health issue.Keywords: electromagnetic radiation, laptop, health issueAbstrak:Penerapan ilmu fisika tentang radiasi elektromagnetik khususnya radiasi dari laptop penting untuk mengetahui cara pencegahan atau mengurangi resiko terpaparnya tubuh dengan radiasi. Keluhan kesehatan yang terjadi biasanya sakit kepala, nyeri otot, mata lelah, insomnia. Pada saat sekarang ini terjadi banyak kontroversi mengenai radiasi elektromagnetik terhadap tubuh manusia. Tujuan penelitian untuk mengukur tingkat radiasi elektromagnetik pada beberapa laptop serta pengaruhnya terhadap keluhan kesehatan. Metode penelitian yakni survei deskriptif secara cross sectional. Lokasi penelitian bertempat di gedung Pertamina dan Rusunawa disekitar kampus Universitas Sam Ratulangi Manado. Sampel berjumlah 35 laptop dari 35 responden. Data diperoleh melalui kuesioner dan pengukuran tingkat radiasi elektromagnetik menggunakan alat Electromagnetic Field Radiation Tester. Data dianalisis menggunakan uji korelasi spearman.Hasil penelitian menunjukkan tingkat radiasi gelombang elektromagnetik rata-rata tertinggi pada 0,01-0,10 μT sebanyak 27 laptop (77%), sedangkan terendah pada 0,41-0,50 μT dan keluhan terbanyak yakni mata lelah dengan jumlah responden sebanyak 29 orang (83%). Hasil uji korelasi spearman menunjukkan tidak terdapat hubungan yang bermakna antara tingkat radiasi laptop dengan keluhan kesehatan.Kata Kunci: radiasi elektromagnetik, laptop, keluhan kesehatan

MOBILE PHONES ELECTROMAGNETIC FIELD RADIATION RESEARCH AND ANALYSIS OF ITS DISPERSION BY APPLYING MATLAB7 SOFTWARE

2017 ◽  
Vol 16 (5) ◽  
pp. 1177-1184
Author(s):  
Raimondas Buckus ◽  
Pranas Baltrenas ◽  
Jonas Skeivalas ◽  
Raimondas Grubliauskas ◽  
Igor Cretescu
Keyword(s):  
Electromagnetic Field ◽  
Mobile Phones ◽  
Field Radiation ◽  
Radiation Research

Resonant interaction of strong electromagnetic field with metallic nanoinclusions in diamagnetic matrix

2007 ◽  
Author(s):  
H. V. Grushevskaya ◽  
V. V. Hrushevsky ◽  
T. I. Orekhovskaya ◽  
M. A. Senuk ◽  
T. A. Burenkova
Keyword(s):  
Electromagnetic Field ◽  
Resonant Interaction ◽  
Strong Electromagnetic Field

Steady-state correlations of two atoms interacting with a reservoir

2012 ◽  
Vol 12 (3&4) ◽  
pp. 231-252
Author(s):  
Luis Octavio Castanos
Keyword(s):  
Electromagnetic Field ◽  
Steady State ◽  
Master Equation ◽  
Field Intensity ◽  
Mixed State ◽  
Laser Field ◽  
Quantum Discord ◽  
Energy Levels ◽  
High Laser ◽  
X State

We consider two two-level atoms fixed at different positions, driven by a resonant monochromatic laser field, and interacting collectively with the quantum electromagnetic field. A Born-Markov-secular master equation is used to describe the dynamics of the two atoms and the steady-state is obtained analytically for a configuration of the atoms. The steady-state populations of the energy levels of the free atoms, entanglement, quantum and geometric discords and degree of mixedness are calculated analytically as a function of the laser field intensity and the distance between the two atoms. It is found that there is a possibility of considerable steady-state entanglement and left/right quantum discord and that these can be controlled either by increasing/decreasing the intensity of the laser field or by increasing/decreasing the distance between atoms. It is shown that the system of two atoms can be prepared in a separable mixed state with non-zero quantum discord that turns into an $X$-state for high laser field intensities. The behavior and relationships between the different correlations are studied and several limiting cases are investigated.

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