Innovative Technology and Management Journal
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A FACILE PREPARATION OF VO2-PVP NANOCOMPOSITE COATING FOR SMART WINDOW APPLICATION WITH IMPROVED VISIBLE TRANSMITTANCE
No full textVanadium dioxide (VO2) is a promising smart window coating due to its thermochromic ability. However, its practical application is still on hold due to some limitations. For instance, a thin film coating of VO2 suffers from low visible transmittance (Tvis). A new and simple technique to solve this restriction is by embedding nanoparticles onto film. Hence, this paper presents a preparation of nanocomposite coating derived from hydrothermally synthesized VO2 with improved Tvis. Using polyvinylpyrrolidone (PVP) as host matrix, nanostructured VO2 is dispersed onto a glass sample via a spin coating process. X-ray diffraction (XRD) scan showed the presence of monoclinic VO2 in the film. Surface analysis of the sample was carried out using atomic force microscopy (AFM). Based on the results, the roughness of the scanned area (1.5x1.5 μm2) has a mean height (Sa), and root mean square height (Sq) of 3.94 nm and 2.73 nm, respectively. Finally, calculation of the optical properties of the sample was done with the aid of a UV-vis spectrophotometer. Accordingly, the prepared nanocomposite film has a Tvis of 79.81% which is significantly higher than a thin film sample (Tvis = 65%)
AUTOMATED WATER BILLING SYSTEM OF HINUNANGAN MUNICIPALITY
No full textA water billing system is an automated system that makes the complex task of billing easy, fast and accurate. This paper presents the development of an Automated Water Billing System for the local government unit of Hinunangan in the province of Southern Leyte, Philippines. The system constitutes two applications - Desktop and Mobile Reader. The System Development Life Cycle (SDLC) framework was adopted in the development process utilizing the Waterfall Model. Survey and interviews were also done as a supplementary technique of the fact-finding. The purposive sampling method was employed in the selection of respondents, and a researcher-made questionnaire was used in the systems evaluation. Weighted mean was used as a statistical treatment. Based on the results of the study, the developed system contributes a greater advantage in providing and delivering better operation, reporting, and services to the clientele
EVACUATION CENTERS EXPOSED TO MULTI-NATURAL HAZARDS: A GIS SPATIAL ANALYSIS
No full textoai:ojs.pkp.sfu.ca:article/2Local government officials usually spearhead evacuation activities during calamities with the participation of barangay officials. The city of Tacloban in Eastern Visayas, Philippines is prone to various natural hazards particularly floods, storm surges, and landslides. During disasters, government facilities are converted into evacuation centers. This study was conducted to assess the evacuation centers in Tacloban City if they are found within the natural hazard zone or multi-hazard prone areas as based on the thematic maps provided by the national government, particularly the Disaster Risk Reduction and Management Office in the country. The study used the Geographic Information System (GIS) spatial analysis. The thematic natural hazard maps that were used to overlay were flooding, storm surges, and landslides. The study showed that Tacloban City is prone to three natural hazards. The result further indicated that there were 97 identified evacuation centers in the city, and most of the evacuation centers are schools and public buildings. Most of them are found in low lying areas which are prone to flooding and storm surge. Some are found in landslide-prone areas which are highly risky. Few evacuation centers are found in the landslide and flood-prone areas. However, there are three evacuation centers located in three natural hazard-prone areas. In conclusion, there could be community folks that are at risk of natural hazards even if the government had placed them in evacuation centers and facilities. It is suggested that the government must thoroughly evaluate target areas where evacuation centers are to be built