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1 – 3 of 3Cezary Galinski, Grzegorz Krysztofiak, Marek Miller, Pawel Ruchala, Marek Kalski, Mateusz Lis, Adam Dziubinski, Krzysztof Bogdanski, Lukasz Stefanek and Jaroslaw Hajduk
The purpose of this paper is to present the methodology and approach adapted to conduct a wind tunnel experiment on the inverted joined-wing airplane flying model together with…
Abstract
Purpose
The purpose of this paper is to present the methodology and approach adapted to conduct a wind tunnel experiment on the inverted joined-wing airplane flying model together with the results obtained.
Design/methodology/approach
General assumptions underlying the dual-use model design are presented in this paper. The model was supposed to be used for both wind tunnel tests and flight tests that significantly drive its size and internal structure. Wind tunnel tests results compared with the outcome of computational fluid dynamics (CFD) were used to assess airplane flying qualities before the maiden flight was performed.
Findings
Extensive data about the aerodynamic characteristics of the airplane were collected. Clean configurations in symmetric and asymmetric cases and also configurations with various control surface deflections were tested.
Practical implications
The data obtained experimentally made it possible to predict the performance and stability properties of the unconventional airplane and to draw conclusions on improvements in further designs of this configuration.
Originality/value
The airplane described in this paper differs from frequently analyzed joined-wing configurations, as it boasts a front lifting surface attached at the top of the fuselage, whereas the aft one is attached at the bottom. The testing technique involving the application of a dual-use model is also innovative.
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Anna Arutunow, Artur Zieliński and Mateusz T. Tobiszewski
The purpose of this paper is to present the results of an atomic force microscopy (AFM) based approach to local impedance spectroscopy (LIS) measurement performed on AA2024 and…
Abstract
Purpose
The purpose of this paper is to present the results of an atomic force microscopy (AFM) based approach to local impedance spectroscopy (LIS) measurement performed on AA2024 and AA2024‐T3 aluminium alloys.
Design/methodology/approach
AFM‐LIS measurements were performed ex‐situ without the electrolyte environment, so in fact the electrical not electrochemical impedance was obtained.
Findings
Relative local impedance values recorded for AA2024 alloy during the researches carried out were maximally approximately three orders of magnitude higher than the ones obtained for age‐hardened AA2024‐T3 alloy. Moreover, in the case of AA2024‐T3 alloy, a region located in the interior of α crystals exhibited localized impedance one order of magnitude higher than that measured at its grain boundary when affected by intergranular corrosion.
Originality/value
The paper presents differences in localized impedance between grain and grain boundaries activity.
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Dawid Storman, Pawel Jemiolo, Mateusz Swierz, Zuzanna Sawiec, Ewa Antonowicz, Malgorzata M. Bala and Anna Prokop-Dorner
This study aims to determine whether individuals’ needs related to psychopharmacotherapy are revealed in peer-to-peer interactions on web-based forums dedicated to people with…
Abstract
Purpose
This study aims to determine whether individuals’ needs related to psychopharmacotherapy are revealed in peer-to-peer interactions on web-based forums dedicated to people with depression and anxiety disorders.
Design/methodology/approach
On July 18, 2021, the authors searched for Polish-language forums focusing on depression and anxiety. From the 10 identified forums, the authors selected two with the highest users’ activity: depresja.ws (depression) and nerwica.com (anxiety disorders). A total of 160 posts from the depression forum and 122 posts from the anxiety forum, covering the period between 2006 and 2020, were collected using automated web scraping. The authors performed mixed-methods analysis of the posts including content analysis for the qualitative part and the Pearson’s?2 test for the quantitative part.
Findings
The total number of units of coding expressing needs was 494 for the depression forum and 360 for anxiety disorders. The most frequently identified needs were the same for depression and anxiety forums and involved informational, social life and emotional. The qualitative analysis revealed three main needs. First, users primarily sought and shared information about pharmacotherapy, focusing on symptoms and drug side effects. Then, requests for sharing experiences, offering hope and building community and emotional expression, especially the release of negative emotions.
Research limitations/implications
The study identified limitations primarily related to the data source and analysis methods. These included the inability to verify user identities or collect demographic details due to the anonymity of forums, potential underrepresentation of needs not explicitly expressed and the subjectivity inherent in qualitative analysis, despite efforts to standardize coding and ensure reliability. Additionally, the findings are context-specific to Poland’s unique socio-historical background, and the analysis excluded individuals without computer access, limiting the generalizability of results to other populations and settings.
Practical implications
Mental health professionals can use insights from web-based forums to better understand and address the needs of patients with depression and anxiety, tailoring treatment plans to improve patient satisfaction and outcomes. Building trust through patient-centered care and addressing barriers such as misconceptions or fears can enhance therapeutic relationships and encourage treatment engagement. Additionally, improving health literacy with clear communication and reliable information empowers patients to make informed decisions about their care.
Originality/value
This study uniquely examines the specific needs of Polish users on medication-related forums, addressing not only informational needs but also emotional support, practical advice and social connection. By comparing forums for depression and anxiety, it highlights key differences in how these groups seek and use support.
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