![](/images/graphics-bg.png)
On the Use of Compound and Extracted Models in Thermal Dosimetry Assessment
المؤلفون المشاركون
Cvetković, Mario
Dodig, Hrvoje
Poljak, Dragan
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-18، 18ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-08-17
دولة النشر
مصر
عدد الصفحات
18
التخصصات الرئيسية
الملخص EN
This paper deals with thermal analysis of realistic models of the human eye and brain using the finite element method.
The research presented in this paper is the sequel to the electromagnetic dosimetry model presented in the previous work by the authors.
The paper presents the numerical results for the specific absorption rate (SAR) and the related temperature increase in various models of the human eye and the brain/head exposed to high-frequency (HF) electromagnetic (EM) radiation.
Based on the numerical results for the induced electric field, the distribution of SAR in the human brain and human eye is determined, subsequently used as input to the thermal model.
The thermal dosimetry model of both the brain and eye are based on the form of Pennes’ bioheat transfer equation, numerically solved using the finite element method (FEM).
The comparison between the extracted models and the compound models of both the eye and brain, placed inside the realistic head model is presented.
In case of the human eye, generally, comparable results were obtained for both SAR and temperature increase, while the compound eye model is found to be more suitable when the polarization of incident wave is considered.
Moreover, the extracted eye model underestimated the temperature rise, attributed to better heat exchange than the compound model.
The results for the compound eye indicate that in some situations, the eye lens could be omitted from simulation, facilitating the model preparation.
The numerical results for all three brain models showed similar distributions of SAR and temperature rise.
Also, the obtained results show that the peak SAR does not exceed the basic restriction limit for localized SAR, for occupational exposure.
The thermal dosimetry assessment of the human brain exposed in four considered scenarios indicates the temperature should not exceed 0.1°C.
Finally, the use of a geometrically simplified model may also be found useful in the initial dosimetry assessment prior to dealing with models with more anatomical features.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Cvetković, Mario& Dodig, Hrvoje& Poljak, Dragan. 2020. On the Use of Compound and Extracted Models in Thermal Dosimetry Assessment. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1201462
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Cvetković, Mario…[et al.]. On the Use of Compound and Extracted Models in Thermal Dosimetry Assessment. Mathematical Problems in Engineering No. 2020 (2020), pp.1-18.
https://search.emarefa.net/detail/BIM-1201462
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Cvetković, Mario& Dodig, Hrvoje& Poljak, Dragan. On the Use of Compound and Extracted Models in Thermal Dosimetry Assessment. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-18.
https://search.emarefa.net/detail/BIM-1201462
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1201462
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
![](/images/kashef-image.png)