The present study focuses on methods for supporting the orientation of blind and visually impaired people within public buildings. Various innovative navigation solutions are reviewed, including principal mapping approaches and systems based on artificial intelligence. Based on the identified challenges and the specific needs of visually impaired users, the authors propose the development of tactile maps incorporating Braille labels in accordance with an established standard. A tactile floor plan of a building was developed using Fused Deposition Modelling (FDM), 3D-printing technology featuring marked locations and dimensions that comply with standard requirements. The selected method offers rapid production at relatively low cost, thereby facilitating the mapping of a larger number of public buildings. Future work will include an analysis and evaluation of the map’s tactile usability and suitability for practical application.
The membranes are very important treatment way for seawater desalination due to low energy and costs. In this study; the effects of increasing retentates fluxes (6.0, 14.0, 19.0 and 23.0 l/m2.h), temperatures (25oC, 35oC and 45oC) and transmembrane pressures (8.0 bar, 14.0 bar, 22.0 bar and 27.0 bar) on the removal efficiencies of the alone and sequential hybrid reverse osmosis (RO) operations was investigated for salt and retentate recoveries from the sequential reactor system. The energy reuse yields were provided by taken into consideration the hybrid reverse osmosis process. In the RO alone and in hybrid RO processes elevated rejection yields (99.80% and 99.99%) was detected, respectively. In both treatment processes, the specific energy utilization was compared. For maximum Br-1, SO4-2, NO3-1, PO4—3 rejections (99.95%) the energy was minimized in the hybrid reverse osmosis proses. This process exhibited lower energy consumption. Retentate recycling from the hybrid sequential reverse osmosis to the inlet/feed of RO alone minimize the specific energy use. The steady-state operational conditions to minimize the energy amount were a water flux of 19.1 l/m2.h, a transmembrane pressure of 7.6 bar and a temperature of 32oC.
Lignite fly ash from the Kosovo B thermal power plant is a major industrial by-product that can be used as a supplementary cementitious material (SCM). Through a comprehensive two-year monitoring program in 2024 and 2025, this paper presents a study of lignite fly ash from the Kosovo B thermal power plant. The study showcases and monitors its chemical traits, mechanical performance and industrial viability. This study, through the use of X-ray fluorescence (XRF) analysis, found that fly ash contains an average of 32.28% SiO 2 , 9.01% Al 2 O 3 , 6.76% Fe 2 O 3 , and 32.93% CaO , with a loss on ignition (LOI) of 2.88%. These characteristics are comparable to Class C fly ash according to the classifications of ASTM C618 and EN 450-1. Regarding average compressive strengths, they reached 14.66 MPa at 7 days and 35.14 MPa at 28 days. Statistical analysis revealed variations over the two years; notably, moisture content negatively impacted early strength ( r = − 0.547 ) , while MgO exhibited a moderate negative correlation with 28-day strength ( r = − 0.411 ) . These results are consistent with high-calcium fly ashes reported in international studies. The benefits of greater use of this material include a reduction in clinker demand, conservation of raw materials, and support for the reuse of industrial by-products in cement production.
Local wisdom is very important for students to be able to know and preserve the culture of their respective regions. In Madura, there is a lot of local wisdom that must be introduced and taught to students through interesting lessons at school. Unfortunately, teaching materials for introducing Madurese local wisdom remain limited. In fact, teaching materials grounded in local Madurese wisdom are urgently needed by students. To make the teaching materials more interesting, they will be created using artificial intelligence. Therefore, this research aims to develop teaching materials based on local wisdom using artificial intelligence to introduce Madurese culture to elementary school students. The research method employed is the Research and Development (R&D) approach based on the Borg and Gall model. The subjects of this study were second-grade elementary school students. Research data collection was carried out by observation and product trial questionnaires. The results of the study indicated that: 1) teaching materials based on Madurese local wisdom have four main themes, namely: Madurese traditional clothing, Madurese traditional house, the Art of Kerrabhân sapè, and traditional Madurese food. 2) The results of the trial showed that the quality of the teaching materials was good enough to be used in the classroom. Based on the product feasibility test involving experts, an average score of 89% was obtained, whereas the trial with students yielded an average score of 85.3%. Creating teaching materials using artificial intelligence is easier and results in more engaging content, thereby boosting students' learning motivation.
The rapid growth of tourism and urban activities has significantly increased household waste generation in Bali, while existing waste management systems face persistent capacity and behavioral challenges. Although socio-economic determinants of waste behavior have been widely examined, empirical studies that explicitly link household sustainability perceptions to community-based waste management mechanisms, including TPS3R, remain limited. This study aims to fill this gap by analyzing how environmental, health, and economic perceptions influence households’ assessment of the importance of TPS3R in supporting sustainable development. The study is based on a survey of 100 households located in close proximity to TPS3R facilities in Denpasar City and Badung Regency. Perception-based indicators were validated and aggregated into composite indices and subsequently analyzed using a logistic regression model. The results show that environmental (odds ratio = 5.85), health (odds ratio = 2.25), and economic perceptions (odds ratio = 1.85) have a positive and statistically significant effect on the perceived importance of TPS3R. Gender is also significant, while formal education is not, suggesting that participation in community-based waste systems and local social practices plays a more decisive role than educational attainment alone. The qualitative findings suggest that ongoing participation in the TPS3R program, together with locally rooted social norms, plays an important role in reinforcing pro-environmental practices within households. Taken together, these results highlight the value of incorporating behavioral perspectives into community-based waste management efforts, especially in regions whose economies rely heavily on tourism, in order to support long-term environmental sustainability.
