Autor: Adamowicz, Adam - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Determination of thermal diffusivity values based on the inverse problem of heat conduction - numerical analysis
Autorzy:: Adamowicz, Adam
Powiązania:: https://bibliotekanauki.pl/articles/2204678.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: thermal diffusivity
inverse heat conduction problem
impulse heating
finite element analysis
Opis:: This paper presents a discussion on the accuracy of the method of determining the thermal diffusivity of solids using the solution of the inverse heat conduction equation. A new measurement data processing procedure was proposed to improve the effectiveness of the method. Using the numerical model, an analysis of the sensitivity of the method of thermal diffusivity determination to changes in operational and environmental parameters of the test was carried out. The obtained results showed that the method was insensitive to the parameters of the thermal excitation impulse, the thickness of the tested sample, and the significant influence of convection cooling on its accuracy. The work was completed with the formulation of general conclusions concerning the conditions for determining the thermal diffusivity of materials with the use of the described method.
Źródło:: Acta Mechanica et Automatica; 2022, 16, 4; 399--407
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A patient with lung cancer and increased right ventricular pressure – should all lung cancer patients be suspected of pulmonary embolism?
Autorzy:: Styczkiewicz, Katarzyna
Mędrek, Sabina
Adamowicz, Adam
Styczkiewicz, Marek
Powiązania:: https://bibliotekanauki.pl/articles/1035688.pdf
Data publikacji:: 2019
Wydawca:: Medical Education
Tematy:: lung cancer
pulmonary embolism
pulmonary hypertension
right ventricle pressure
Opis:: Lung cancer is associated with an increased risk of venous thromboembolism, including pulmonary embolism. In some situations, clinical deterioration in patients with lung cancer accompanied by elevated pressure in the right ventricle, usually measured by commonly used echocardiography, may support the diagnosis of pulmonary embolism. However, there are many other causes of increased pressure in the right ventricle in such patients, for example: progression of cancer, pre-existing lung diseases, surgical resection of pulmonary tissue, pnemotoxicity of radiotherapy or concomitant diseases of the left heart. The article presents 2 clinical cases of patients with lung cancer, in which elevated pressure in the right ventricle was resulted from other causes and accompanied the progression of cancer, despite the clinical picture suggesting a pulmonary embolism. Increased pressure in the right ventricle and usually associated pulmonary hypertension, significantly worsen already poor prognosis of patients with lung cancer. The differential diagnosis should, therefore, take into account the whole clinical picture, excluding venous thromboembolism as an important cause of pulmonary hypertension, but also take into account other potential factors to be able to make the right diagnosis and implement optimal treatment as early as possible.
Źródło:: OncoReview; 2019, 9, 2; 45-50
2450-6125
Pojawia się w:: OncoReview
Dostawca treści:: Biblioteka Nauki

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