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Różnice w transformatorach i dławikach kompensacyjnych mające wpływ na eksploatację i trwałość użytkowania

Dziura Jacek

Wiadomości Elektrotechniczne

2024

R. 92, nr 1

21--25

Procesy starzeniowe dotyczą każdego urządzenia. Dla transformatorów rozdzielczych są one rozpoznane i dość dokładnie opisane wraz z podaniem wskaźników monitorujących. W przypadku dławików kompensacyjnych zasilanych z sieci rozdzielczych kryteria oceny ich stanu oparte są zwykle na kryteriach wziętych wprost z transformatorów. W artykule wskazano na różnice w procesach starzeniowych wynikające ze specyfiki eksploatacji dławików a także ich nieco odmiennej konstrukcji, co może wpływać na stosowane kryteria oceny ich układu izolacyjnego.

Ageing processes are related to each device. For distribution transformers they are well recognized and thoroughly described specifying also adequate monitoring indicators. For middle voltage shunt reactors fed from distribution networks the criteria describing their condition usually are taken directly from transformers. The paper emphasizes the differences in ageing processes resulting from specific way of shunt reactor operation and the differences of the design what may influence the assessment criteria.

Aminokwasy, glikany, peptydy i białka w ścieżkach diagnostycznych i terapeutycznych chorób cywilizacyjnych XXI wieku : projektowanie i charakterystyka fizykochemiczna oraz strukturalna

Bylińska Irena, Dzierżyńska Maria, Giżyńska Małgorzata, Guzow Katarzyna, Jankowska Elżbieta, Jurczak Przemysław, Kaczyński Zbigniew, Karska Natalia, Kowalczyk Agnieszka, Kuncewicz Katarzyna, Orlikowska Marta, Sawicka Justyna, Spodzieja Marta, Szpakowska Nikola, Szymańska Aneta, Wieczerzak Ewa, Witkowska Julia, Rodziewicz-Motowidło Sylwia

Wiadomości Chemiczne

2022

[Z] 76, 5-6

393--431

The civilization diseases of the 21st century are non-infectious disorders, affecting a large part of modern society. They are associated with the significant development of industry and technology, and hence with environmental pollution and an unhealthy lifestyle. These factors have led to the development of many civilization diseases, which currently include: cardiovascular diseases, respiratory diseases, diabetes, obesity, malignant tumors, gastrointestinal diseases, mental disorders and allergic diseases. The development of technologies, including modern therapies and new drugs, resulted in increase in life expectancy. This creates a global problem of an aging population with an increasing number of diseases of the old age, i.e. dementias. In addition, sedentary lifestyles and changing diets are the reasons why more and more people develop metabolic diseases, as well as neurological and cognitive disorders characterized by progressive damage to nerve cells and dementia. Currently, problem on a global scale is also the growing resistance to existing antimicrobial drugs. Therefore, the scientists face many challenges related to searching for the causes of these diseases, their diagnosis and treatment. Scientific research conducted at the Department of Biomedical Chemistry at the Faculty of Chemistry of the University of Gdańsk is part of this research trend. In this publication, we discuss various research topics with the long-term aim of solving the problems associated with the diseases mentioned above. The following chapters are dedicated to (i) looking for new effective fluorophores with diagnostic and anti-cancer activity; (ii) designing of new compounds with antibacterial and antiviral activity and their synthesis; (iii) investigating the mechanisms of amyloid deposit formation by human cystatin C and possibilities of inhibition of this process; (iv) designing and studies of compounds activating the proteasome with the potential to suppress the development of neurodegenerative diseases; (v) designing peptide fibrils and hydrogels as drug carriers; (vi) searching for peptide inhibitors of immune checkpoint as potential drugs for immunotherapy; (vii) studying the mechanism of action of selected herpesviruses by determining the structure of viral proteins and (viii) studying the composition of natural glycans and glycoconjugates in order to better understand the mechanisms of interaction of bacteria with the environment or with the host.