Nur Liza Rahim
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Preferred name
Nur Liza Rahim
Official Name
Nur Liza, Rahim
Alternative Name
Rahim, Nur Liza
Rahim, N. L.
Rahim, Nur Alis Addiena A.
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Scopus Author ID
55754434900

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Assessing the self-healings properties of nano -Ca(OH)₂ - TiO₂ - ZnO materials used in monuments conservation works

2023 , Moncea Mihaela-Andreea , Deak Gyogy , Gheorghe (Dumitru) Florina-Diana , Norazian Mohamed Noor , Nur Liza Rahim

Consolidates based on Ca(OH)₂ have been prepared as macro- and/or nanoparticles dispersed in different alcohols, regardless of the precursor nature. Their efficiency is related to the small dimensions of the particles and the dispersion media, which allows their penetration into the deteriorated material substrates, as well as to an increased reactivity towards CO₂. Besides the consolidating effect there is a strong need for the newly developed materials to also tackle other properties like self cleaning and antimicrobial activity, especially with regards to white monuments. In this context the present work highlights the effect of treating with stable alcoholic suspension containing nano - Ca(OH)₂ - TiO₂ - ZnO the physical support models consisting of mortar cubic samples from hydraulic / aerial lime, a commonly used materials in consolidation works.

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Measurements and statistical analysis of CO₂ efflux and related parameters from crop and forested lands

2023 , Laslo Lucian , Matei Monica , Boboc Mădălina , Deák György , Cătuneanu Ioana , Enache Natalia , Nur Liza Rahim

The LULUCF sector (land use, land use change and forestry) can act as a carbon dioxide (CO₂) sink, either by increasing the removal of greenhouse gasses from the atmosphere or by reducing their current emissions. This paper intends to analyze the results of the CO₂ monitoring methodology by the chamber method in order to estimate the effect of different land use cover and management techniques. For this purpose, seasonal CO₂ efflux field measurements were conducted in two types of ecosystems (forested land and wheat crop) located in the adjacent area of Bucharest. CO₂ efflux was analysed for each land cover in relation to the physical characteristics of the soil, respectively soil temperatures and humidity, but also together with the main weather parameters. The measurements were performed simultaneously in both land covers at relevant time intervals. The difference in measured values between the two ecosystems was recorded but the results of the statistical analysis showed a lack of differences in the correlation between the CO₂ efflux. This indicates that the CO₂ efflux can be affected by particular elements of the environment which facilitates differences in soil temperature and humidity in the same weather conditions.

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