The effect of phosphate ions (PO43-) on the corrosion of iron in sulphate solutions

WOS: 000078542700007The effect of phosphate ions on the corrosion of iron in sulphate solutions at different temperatures (293 K, 313 K, 333 K and 353 K) and at different pH (pH=2.1, 7.2 and 12.3) values was investigated. The electrochemical three-electrode technique was employed. The cathodic and anodic current-potential curves were obtained by strating from the corrosion potential measured against SCE and polarizing it first in cathodic and then in anodic direction. The results obtained indicate that at high pH (pH=7.2 and 12.3) SO42- +PO43- ions together reduce the corrosion rate of iron to a greater extent than SO42- alone. At low pH (pH=2.1), as the temperature increases the corrosion rate of iron increases in both SO42- and SO42- +PO43- solutions

Models in Graphical User Interface Testing: Study Design

14th Turkish National Software Engineering Symposium, UYMS 2020 -- 7 October 2020 through 9 October 2020 -- -- 1649142-s2.0-85097537439Model-based GUI testing is an important concept in Software GUI testing. Manual testing is a time-consuming labor and heavily error-prone. It has several well-accepted models that Software Testing community has been working and contributing to them for many years. This paper reviews different models used in model-based GUI testing and presents a case study with a proposed approach for how to convert several well-accepted models to ESG (Event Sequence Graphs) to generate test cases and execute them with an aim to consolidate past and future works in a single model. © 2020 IEEE

Ideal test for android testing: Preliminary work [Android uygulaması testi için ideal test ön çalışması]

12th Turkish National Software Engineering Symposium, UYMS 2018 -- 10 September 2018 through 12 September 2018 -- 139255This paper proposes a hybrid method combining well-known holistic test and mutation testing in software testing for Graphical User Interface (GUI) testing of an android application. Moreover, this hybrid method satisfies requirements of ideal testing that is well known and important in software testing. Presence and absence of GUI based faults are tested within this work experimentally and comparatively in the scale of given or constructed model. First step of the method is modeling the given GUI of android application by Finite State Machine (FSM) and then converting this FSM to Regular Expression (RE). Then, test sequences are generated from a context table that is obtained analysis of the RE model. This process defines first part of the Holistic Testing namely positive testing. In second part called negative testing, the test sequence generation procedure is applied mutants of the FSM obtained after applying selected mutation operators. The generated test sequences from original and mutant models are executed on mutant and original android applications respectively. Test sequences are filtered by using pre-defined selection criteria for both positive and negative testing to achieve ideal test suites that are satisfying requirements of the ideal testing