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244 results on '"Zivkovic, B."'

16. Trigeminal Neuralgia: Current Ways of Treatment

Author

Jankovic Rj, Markovic-Zivkovic B, and Markovic D

Subjects
medicine.medical_specialty, business.industry, media_common.quotation_subject, General Engineering, Alternative medicine, medicine.disease, Surgery, Pharmacotherapy, Trigeminal neuralgia, Neuralgia, Medicine, business, Adverse effect, Intensive care medicine, Depression (differential diagnoses), Seriousness, media_common
Abstract

Trigeminal neuralgia continues to be a remarkable therapeutic problem especially if the pain becomes chronic. If that happens the quality of patient’s life decreases and there is a high risk for the patients to develop depression and other psychiatric disorders. The primary approach is pharmacological. However, about 75% of patients respond well to pharmacotherapy and in others it remains without result. In some patients the pain becomes refractory after a while, while some patients manifest adverse effects. Many invasive and non-invasive therapeutic methods have been developed, each with advantages and disadvantages. Every patient should be approached with extreme seriousness, and a decision should be made individually.

Published
2016

17. AN ANALYSIS OF ISOTHERMAL PHASE CHANGE OF PHASE CHANGE MATERIAL WITHIN RECTANGULAR AND CYLINDRICAL CONTAINERS

Author

ZIVKOVIC, B. and FUJII, I.

Subjects
Atmospheric temperature -- Measurement, Solar energy research -- Reports, Phase transformations (Statistical physics) -- Research, Solar energy -- Equipment and supplies, Earth sciences, Petroleum, energy and mining industries
Abstract

In this paper, a simple computational model for isothermal phase change of phase change material (PCM) encapsulated in a single container is presented. The mathematical model was based on an enthalpy formulation with equations cast in such a form that the only unknown variable is the PCM's temperature. The theoretical model was verified with a test problem and an experiment performed in order to assess the validity of the assumptions of the mathematical model. With very good agreement between experimental and computational data, it can be concluded that conduction within the PCM in the direction of heat transfer fluid flow thermal resistance of the container's wall, and the effects of natural convection within the melt can be ignored for the conditions investigated in this study. The numerical analysis of the melting time for rectangular and cylindrical containers was then performed using the computational model presented in this paper. Results show that the rectangular container requires nearly half of the melting time as for the cylindrical container of the same volume and heat transfer area. [C] 2001 Elsevier Science Ltd. All rights reserved.

Published
2000

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