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Wyświetlanie 1-15 z 65
Tytuł:
The comparison between the two most common histological subtypes of breast cancer - invasive ductal and invasive lobular breast carcinoma
Autorzy:
Fudalej, Marta
Sobiborowicz-Sadowska, Aleksandra
Mormul, Agata
Jopek, Sylwia
Borowiec, Agnieszka
Sikorski, Piotr
Patera, Janusz
Deptała, Andrzej
Badowska-Kozakiewicz, Anna M.
Powiązania:
https://bibliotekanauki.pl/articles/44426576.pdf
Data publikacji:
2024-04-07
Wydawca:
Medical Education
Tematy:
immunohistochemistry
invasive lobular carcinoma
invasive ductal carcinoma
Opis:
Introduction: Invasive lobular carcinoma (ILC) occurs in 5–15% of all cases of breast cancer. In most studies, it is found to be more common among older patients, form larger tumours and present with ill-defined margins, in comparison to invasive ductal carcinoma (IDC). Material and methods: Histological preparations were obtained from 651 patients suffering from breast cancer. Preparations stained with hematoxylin and eosin were used to identify tumour type and grading. Samples underwent a basic molecular profile evaluation encompassing ER (oestrogen receptor), PR (progesterone receptor) and human epidermal growth factor receptor 2 (HER2) expression. Results: 592 cases of IDC and 59 cases of ILC were detected. The median age was 60 in both groups. While there were no statistically significant differences between IDC and ILC in nodal status and tumour size for all age groups, IDC was more frequently diagnosed at higher grading (G3). G3 accounted for 32% of all IDC specimens compared to only 13% of ILC specimens. In both groups, the most prevalent combination of hormone receptors was ER+/PR+/HER2-. The differences in ER and PR expression were statistically significant; both were assessed as positive in most ILC cases and just over half of IDC. No HER2 amplification was noted in most cases in both cancer subtypes. Conclusions: In our study, IDC and ILC showed no difference with respect to patients’ median age at the diagnosis and local disease advancement defined by TNM. ILC cases were hormone-dependent and HER2-negative more frequently than IDC. Grade 3 tumours accounted for a higher proportion of IDC cases. This was in line with several other clinicopathological analyses of breast cancer. However, there are also several papers indicating ILC’s association with favourable prognostic features, not only in terms of hormone receptors and HER2 expression but also tumour size and nodal involvement. This underlines the fact that clear differences between IDC and ILC prognosis still cannot be established.
Źródło:
OncoReview; 2024, 14, 1; 9-15
2450-6125
Pojawia się w:
OncoReview
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diagnostic and therapeutic approach to children with Nijmegen breakage syndrome in relation to development of lymphoid malignancies
Autorzy:
Filipiuk, A.
Kozakiewicz, A.
Kośmider, K.
Lejman, M.
Zawitkowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/28761845.pdf
Data publikacji:
2022
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2022, 29, 2; 207-214
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intake of selected food groups in relation to risk of breast cancer
Autorzy:
Oleksiak, A.
Deptała, A.
Dąbrowska-Bender, M.
Religioni, U.
Badowska-Kozakiewicz, A.M.
Powiązania:
https://bibliotekanauki.pl/articles/28761770.pdf
Data publikacji:
2022
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2022, 29, 3; 342-347
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiple sclerosis in a child with neurofibromatosis type I – clinical management of a challenging case
Autorzy:
Kośmider, K.
Kozakiewicz, A.
Filipiuk, A.
Sławińska, D.
Lejman, M.
Zawitkowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/28761821.pdf
Data publikacji:
2022
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2022, 29, 2; 309-315
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cancer pain as a meaningful aspect of the oncological treatment
Autorzy:
Marzec, Izabela
Grabska, Kinga
Fudalej, Marta M.
Badowska-Kozakiewicz, Anna M.
Powiązania:
https://bibliotekanauki.pl/articles/2033688.pdf
Data publikacji:
2021-01-08
Wydawca:
Medical Education
Tematy:
pain
scales
cancer
analgesic treatment
palliative care
Opis:
Introduction and objective: Pain is the most common and universal symptom among all patients with the oncological disease. Pain significantly reduces the quality of life, hinders decent functioning, and plays a significant role in the deterioration of the mental health of the patient and his close relatives. The study aimed to discuss the mainstreaming of effective pain treatment and to review various assessments and scales (including Brief Pain Inventory, Illness Perception Questionnaire and Numeric Rating Scale) concerning the psychological aspect of pain in selected neoplastic diseases.State of knowledge: We can distinguish various treatments for pain that can be divided into pharmacological and non-pharmacological methods. Latest studies revealed that pain treatment appears to be more and more meaningful. Various factors might influence pain perception and response to the applied treatment. Among all malignancies, special attention is paid to the pain issue in following cancers: colon cancer, gastric cancer, pancreatic cancer, ovarian cancer, breast cancer and lung cancer, that were described in this paper. Conclusions: Effective pain relief presents a positive effect, both on the physical and mental state of the patient. It also helps to maintain calm mental health among relatives. Nowadays, integration of the best methods for pain relief that are characterized as humanitarian, easily accessible and effective, seems to be one of the biggest challenges for both oncological and palliative health workers.
Źródło:
OncoReview; 2020, 10, 4; 145-152
2450-6125
Pojawia się w:
OncoReview
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of 3D printing MJP and FDM technology in dentistry
Autorzy:
Taczała, J.
Czepułkowska, W.
Konieczny, B.
Sokołowski, J.
Kozakiewicz, M.
Szymor, P.
Powiązania:
https://bibliotekanauki.pl/articles/1818497.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
CAD/CAM
dental materials
FDM
MJP
3D printing
materiały dentystyczne
drukowanie 3D
Opis:
Purpose: Many printers are tempting at low prices, but later their accuracy turns out to be insufficient. The study has included checking the accuracy of printing and reproducing details of 3D printers used in dental technology and dentistry such as MultiJet Printing (ProJet MP3000, 3D Systems) and Fused Deposition Modelling (Inspire S2000, Tiertime). Design/methodology/approach: The 3D prints were created from scans of the maxillary gypsum model with the loss of left premolar. In the test, objects were set to the X and Y-axis. In order to check the dimensional differences after printing, scans of the printed models were superimposed on scans of the plaster model in the GOM Inspect V8 SR1 (Braunschweig, Germany). The focus was on the distance of scans from each other and a deviation map was created for each object. Findings: The average absolute value of deviations for each of models were equalled: FDM- for X-axis 0.06 ± 0.04 mm, for Y-axis 0.07 ± 0.04 mm; MJP- for X-axis- 0.04 ± 0.02 mm, for Y-axis- 0.06 ± 0.02 mm. A chart of arithmetic averages calculated for each tooth for the best printouts in each series show that higher deviation values exist in case of FDM printout. The models printed in the X-axis have smaller values of deviations from those printed in the Y-axis. Practical implications: MultiJet Printing technology can be used to create more precise models than the FDM, but these printouts meet the requirements of dimensional accuracy too. Originality/value: CAD / CAM technology in the future will exist in every dental technology laboratory so it is important to be aware of the way the 3D printers works. By paying attention to the quality of detail reproduction, a Dental Technician is able to choose the best 3D printer for them.
Źródło:
Archives of Materials Science and Engineering; 2020, 101, 1; 32--40
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ELF3 as an important factor in carcinogenesis – a brief review of the recent studies
Autorzy:
Domańska, Julia
Poboży, Kamil
Kuryłek, Michał
Fudalej, Marta M.
Sobiborowicz, Aleksandra
Deptała, Andrzej
Badowska-Kozakiewicz, Anna M.
Powiązania:
https://bibliotekanauki.pl/articles/1035652.pdf
Data publikacji:
2020
Wydawca:
Medical Education
Tematy:
ELF3
carcinogenesis
molecular biology
Opis:
Introduction and objective: E74-like transcription factor 3 (ELF3) is mainly expressed in epithelial tissue, being responsible for differentiation and regeneration. Furthermore, it plays a role in inflammation, remodeling, allergy regulation and apoptosis. Various studies on ELF3 conducted since 1997 have also proved its connection with carcinogenesis and metastasis. This review summarizes recent advances in understanding the role of ELF3 in the following cancers: ampullary, bladder, breast, gastric, hepatocellular, nasopharyngeal, thyroid, lung and ovarian ones. State of knowledge: There are still many unresolved and undiscovered issues regarding ELF3 mutations, however, based on research since 2016, a link to many signaling pathways important for carcinogenesis has been shown. There is no simple correlation between a specific ELF3 mutation and effect on cancer cells. In various types of cancers, ELF3 is associated with other pathways, and modifications exerted by silencing or amplifying its or associated genes, cause different effects in patient prediction. An example of the effect of ELF3 on tumor progression is achieved by negatively regulating the ZEB1 transcription factor responsible for metastasis. WNT, RAS, Akt, mTOR, HER2, Cyclin D, IRF6 are other ELF3-related factors that affects pathways crucial for tumorigenesis. Conclusions: Further research and attempts to use ELF3 in the treatment and prognosis of cancer appear to be beneficial.
Źródło:
OncoReview; 2020, 10, 2; 77-81
2450-6125
Pojawia się w:
OncoReview
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occurrence of adverse events in the activity of hospital wards in the opinions of doctors and nursing management staff
Autorzy:
Mikos, M.
Banaszewska, A.
Kutaj-Wąsikowska, H.
Kutryba, B.
Czerw, A.
Badowska-Kozakiewicz, A.M.
Wójtowicz, E.
Powiązania:
https://bibliotekanauki.pl/articles/2085677.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
adverse events
patient safety
quality of health care
Opis:
Introduction. An adverse event is an incident induced while providing health care services or resulting from it, not related to the natural course of a given disease or health condition, which causes or is likely to cause negative consequences for the patient, including their death, a threat to life, the necessity of hospitalisation or its prolongation, permanent or considerable health detriment; or is a foetal disease, congenital defect or the result of foetal damage. Objective. The aim of this analysis is to explore the problem of the occurrence of adverse events from the perspective of doctors and ward nurses who manage wards. Materials and method. The research on the occurrence of adverse events among doctors and nurses (the management staff) was conducted with the use of a postal survey. Results. It was ascertained that 86.5% of the medical personnel had taken part in an adverse event, of which 20.2% took part in an occurrence associated with pharmacotherapy, 16.2% – in an event related to diagnostics and diagnosis, or an infection – 15.7%. 14.2% of respondents were involved in an occurrence linked to a medical device malfunction, and 14.1% – in an adverse event related to an operation. Conclusions. The adverse events most often identified in the nursing professional group are occurrences associated with pharmacotherapy, and in the doctors’ professional group – occurrences related to diagnostics and diagnosis. The research established that the most frequent reason for not informing patients about the occurrence of an adverse event is fear of their filing a complaint. Medical management staff show high acceptance of an adverse event reporting system as a tool for improving patient safety.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 2; 306-309
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technological Properties of Thermo-insulating Moulding Sands with Organic Binder
Autorzy:
Stec, K.
Cholewa, M.
Kozakiewicz, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/946874.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
skeleton castings
moulding sand
organic binder
technological properties
CRS
odlewy szkieletowe
piasek formierski
środek wiążący
właściwości technologiczne
Opis:
A thermo-insulating moulding sand with a binder made of aluminosilicate microspheres with organic binder was subjected to testing. The aim of the analysis was to determine selected technological properties of the developed compounds. Compressive strength, friability and gas permeability were determined. The binder content was changed within a range of 5÷20 wt% with a 5% step. The applied matrix is characterized by good thermo-insulating properties and a small size of grains, while synthetic organic binder has favourable functional properties, among which the most noteworthy are the extended life and setting time, good rheological properties as well as high resistance to chemical agents. The intended use of the compound is the casting of 3D CRS (Composite Reinforced Skeletons), which are characterized by a well-developed heat transfer surface area, good absorption of impact energy, low mass and a target thickness of connectors within a range of 1.5÷3 mm. The construction of 3D CRS castings is an original concept developed by the employees of the Department of Foundry Engineering at the Silesian University of Technology.
Źródło:
Archives of Foundry Engineering; 2020, 20, 2; 105-110
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
αB-crystallin as a promising target in pathological conditions - a review
Autorzy:
Maksymiuk, M.
Sabiborowicz, A.
Tuzimek, A.
Deptała, A.
Czerw, A.
Badowska-Kozakiewicz, A.M.
Powiązania:
https://bibliotekanauki.pl/articles/2086060.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
αB-crystallin
small heat-shock proteins
breast cancer
renal cell carcinoma
Opis:
Introduction and objective. αB-crystallin belongs to the ubiquitous family of small heat-shock proteins. It was discovered as a physiological protein of the eye lens, maintaining its liquid-like property. Furthermore, αB-crystallin was proved to playa bipolar role in both physiological and pathophysiological conditions. This review discusses current knowledge about the biology and genetics of αB-crystallin, and summarizes recent advances in understanding its role in ophthalmic and neurological disorders, as well as breast cancer, renal cancer and other malignancies. State of knowledge. α-crystallins are established as important elements of the protein quality control network, and consequently their defects are related to multiple human diseases. New studies highlight αB-crystallin’s involvement in proliferative diabetic retinopathy angiogenesis and point out its therapeutic potential in age-related macular degeneration. αB-crystallin is thought to be associated with the disease-causing protein aggregates, leading to its connection with such neurological disturbances as anaplastic astrocytoma, Parkinson disease, aging deficits in the peripheral nervous system and multiple sclerosis. In breast cancer, it was proven to be a marker of aggressive behaviur and cerebral metastases. Strong expression of αB-crystallin promoted growth and migration of clear cell renal cell carcinoma cells and was correlated with lower overall survival rate. Considering other malignancies, its various roles were established in colorectal and gastric cancers, head and neck squamous cell carcinomas and osteosarcomas. Conclusions. Further studies concerning αB-crystallin seem to be enormously promising, as they might improve our understanding of common human pathologies as well as contemporary diagnostics and treatment.
Źródło:
Annals of Agricultural and Environmental Medicine; 2020, 27, 3; 326-334
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Amatorskie nurkowanie pacjentów z rozpoznaną cukrzycą
Diabetic patients who are amateur divers
Autorzy:
Ługowska, D.
Ługowski, T.
Krzywińska, O.
Kozakiewicz, M.
Grzelakowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1359563.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
Tematy:
cukrzyca
nurkowanie amatorskie
diabetes mellitus
recreational diving
Opis:
Cukrzyca to „epidemia XXI wieku”, szacuje się, że w 2011 roku na cukrzycę chorowało 6,7% populacji Polski, z czego jedna czwarta nie miała świadomości choroby. Tak duże rozpowszechnienie cukrzycy sprawia, że coraz więcej lekarzy staje przed problemem prawidłowej kwalifikacji pacjenta z cukrzycą do amatorskiego uprawiania sportu, w tym nurkowania. W niniejszej publikacji przedstawiono najważniejsze informacje dotyczące oceny ryzyka, dopuszczenia do amatorskiego nurkowania pacjentów z cukrzycą oraz proponowanych protokołów postępowania przed i podczas uprawiania tego sportu.
Diabetes is an "epidemic of the 21st century" and it is estimated that in 2011 6.7% of Poland's population suffered from diabetes, one quarter of which was unaware of the disease. Such a high prevalence of diabetes mellitus results in an increasing number of physicians being confronted with the problem of qualifying patient with diabetes to partake in amateur sports, including diving. This publication presents the most important information concerning risk assessment, admission of diabetic patients to amateur diving and some proposed protocols of management before and during sport practice.
Źródło:
Polish Hyperbaric Research; 2018, 3(64); 39-44
1734-7009
2084-0535
Pojawia się w:
Polish Hyperbaric Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Liczebność ptaków wodnych na Zatoce Gdańskiej w okresie wrzesień 2017 - kwiecień 2018
Waterbird counts in the Bay of Gdańsk in September 2017 - April 2018
Autorzy:
Meissner, W.
Stepniewska, K.
Kosmicki, A.
Kozakiewicz, M.
Sciborski, M.
Powiązania:
https://bibliotekanauki.pl/articles/79708.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Zoologiczne
Tematy:
ptaki wodne
sklad gatunkowy
liczebnosc
Zatoka Gdanska
lata 2017-2018
Źródło:
Ornis Polonica; 2018, 59, 2
2081-9706
Pojawia się w:
Ornis Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Main problems of the evaluation and selection of advanced weapon systems exemplified by a multi-role combat aircraft
Podstawowe problemy oceny i wyboru zaawansowanych systemów uzbrojenia na przykładzie techniki lotniczej
Autorzy:
Kozakiewicz, A.
Wróblewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/210053.pdf
Data publikacji:
2018
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
uzbrojenie
lotnictwo
wspomaganie podejmowania decyzji
analiza wielokryterialna
metoda AHP
ranking
armament
military aviation
decision-making support
multi-criteria analysis
AHP method
Opis:
This paper presents a selection of issues related to the methods of evaluation and selection of advanced weapon systems for armed forces. The paper’s focus is ranking in the form of typical Multidimensional Comparative Analysis Methods, and the AHP method which represents a large group of Multi-Criteria Decision Analysis methods. Both methods were illustrated with a practical computational example related to combat aircraft. The example can help determine the defensive capabilities of friendly forces; it can also support the decision-making process in the acquisition of novel armament, including aircraft, ships, surface-to-air missile defense systems, etc.
W artykule przedstawiono wybrane zagadnienia związane z metodami oceny i wyboru dla potrzeb sił zbrojnych zaawansowanych technicznie systemów uzbrojenia. Skupiono się na rankingowaniu jako typowej technice wielowymiarowej analizy porównawczej oraz metodzie AHP należącej do licznego grona metod wielokryterialnej analizy decyzyjnej. Obie metody zilustrowano praktycznym przykładem obliczeniowym dotyczącym samolotów bojowych. Przykład ten z jednej strony może służyć do określenia własnego potencjału obronnego, z drugiej zaś może być wykorzystany do wspomagania procesu decyzyjnego związanego z pozyskiwaniem nowego typu uzbrojenia jak np. samoloty, okręty, systemy obrony rakietowej itp.
Źródło:
Biuletyn Wojskowej Akademii Technicznej; 2018, 67, 3; 115-127
1234-5865
Pojawia się w:
Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Równoważność quasi-chemicznego i statystycznego opisu asocjacji molekuł adsorbatu w zlokalizowanej monowarstwie adsorpcyjnej na homogenicznej powierzchni ciała stałego
The equivalence of quasi-chemical and statistical description of adsorbate molecule association in a localised adsorption monolayer on a homogeneous solid surface
Autorzy:
Garbacz, J. K.
Kozakiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1359629.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
Tematy:
równowaga chemiczna
adsorpcja
równanie Berezina
równanie Kiseleva
oddzziaływania adsorbat-adsorbat
chemical equilibrium
adsorption
Berezin and Kiseleve equation
adsorbate-adsorbate interactions
Opis:
Przeprowadzono ocenną analizę koncepcji Berezina i Kisielewa zakładającej liniową asocjację molekuł w zlokalizowanej monowarstwie adsorpcyjnej na homogenicznej powierzchni stałego adsorbentu. Wskazano na niekonsekwencję w sposobie formułowania wyrażenia na stałą asocjacji poprzez nieuwzględnienie równowagowej koncentracji wolnych miejsc adsorpcyjnych. Wykazano, że poprawna postać tej funkcji prowadzi do finalnego równania adsorpcji identycznego ze szczególnym przypadkiem równania Fowlera-Guggenheima. Otrzymany rezultat uogólniono na przypadki rozgałęzionych asocjatów adsorbat-adsorbat. Wyprowadzono nowe równanie adsorpcji ograniczające asocjację do co najwyżej dimerów. Określono warunki krytyczne dwuwymiarowej kondensacji warstwy adsorpcyjnej. Stosując formalizm zespołu kanonicznego wykazano pełną równoważność metod fenomenologicznej i statystycznej w opisie odziaływań międzycząsteczkowych w zlokalizowanej monowarstwie adsorpcyjnej.
The analysis of Berezin and Kiselev's concept assuming linear association of molecules in a localised adsorption monolayer on the homogeneous surface of a solid adsorbent was carried out. An inconsistency due to the lack of consideration of equilibrium concentration of free adsorption sites in the formulation of the expression for the association constant has been pointed out. It was shown that the correct form of this function leads to the final adsorption equation being identical to the specific case of the Fowler-Guggenheim equation. The obtained result has been generalised to cases of branched adsorbate-adsorbate associations. A new adsorption equation limiting the association to at most the dimers has been introduced. Critical conditions for the two-dimensional condensation of the adsorption layer were determined. By applying the formalism of canonical ensemble, full equivalence of the phenomenological and statistical methods was demonstrated in the description of the intermolecular interactions in the localised adsorption monolayer.
Źródło:
Polish Hyperbaric Research; 2018, 4(65); 25-38
1734-7009
2084-0535
Pojawia się w:
Polish Hyperbaric Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Interfacial Tension in the Liquid Aluminum Alloy-Liquid Slag System
Autorzy:
Suchora-Kozakiewicz, M.
Jackowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/106983.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
metallurgical systems
interfacial tensions
recycling
fluxes
slags
Opis:
In the present paper, the results from investigations regarding interfacial tensions present at the borders of a liquid aluminum alloy and two selected melted fluxes (mixtures of salts) are presented. The fluxes feature solidification characteristic curves that are very close to each other as well as differentiated chemical compositions. For the comparative investigations, the so-called surface property index (WS) is calculated for both fluxes with the use of the ion theory of slags. The investigations of the interfacial tensions were conducted on a stand that enabled the measurement of the force values accompanying the tearing-off of the probe from the interfacial surface. A very clear relationship between the interfacial tension values and the WS index values that characterize both fluxes was found. An increase in the WS index value resulted in an increase in the investigated interfacial tension values. It was also found that, in both cases under investigation, an increase in the system temperature value resulted in an increase of the values of the interfacial tensions present within. In the conclusion, we state that the metallurgical treatments (for instance, the recycling of the cast metal composite materials by way of component separation) should be conducted with the use of salt mixtures (fluxes) characterized with WS index and melting temperature values as low as possible.
Źródło:
Journal of Casting & Materials Engineering; 2017, 1, 1; 11-14
2543-9901
Pojawia się w:
Journal of Casting & Materials Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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