The impact of changes in regional development along with the construction of Yogyakarta International Airport in Kulon Progo Regency may affect land use changes as the activities of the surrounding population. Galur– Lendah area, which is located near the city of Yogyakarta and acts as the entrance to Kulon Progo, will also develop. Along with these developments, the determination of the groundwater recharge–discharge area is needed to ensure the availability of groundwater at this site. The purpose of this study was to determine the zonation of groundwater recharge–discharge areas to support the availability of groundwater. The method of research is a spatial analysis using a geographic information system (GIS) based on ratings and weighting values for six parameters, including slope, rainfall, groundwater table depth, soil type, rock permeability, and land use. The field hydrogeological was also conducted to find out rock permeability and groundwater quality (pH, EC, TDS). The results showed that areas with potential for groundwater recharge were in the central and northeastern parts of the study area and the discharge zones in the north and south were with potential infiltration values of 26–43 and 44–59, respectively. However, the recharge area can still function as a discharge zone.

The objective of this study is to analyze effect of ground granulated blast furnace slag (GGBFS) in concrete on the pore structure, this research will contribute to the knowledge regarding the use of GGBFS as a cementitious material in terms of the future reference and potential improvement to the properties of concrete. To this aim, on the one hand a control specimens (CS) and another samples with 40% and 60% of GGBFS as replacement cement with moist cured at 20oC, 27oC, and cured at site. The compressive strength and the Mercury intrusion porosimetry (MIP) test were done. The result indicates that the strength of concrete with GGBFS at early ages tend to be lower in comparison with the CS. However, the GGBFS reaction plays important roles at the later ages. The samples cured at higher temperature produce higher strength value. The total pore volume (TPV) of the concrete use GGBFS decreases with increasing age.

17 maja 2018 r. Narodowe Centrum Badań i Rozwoju ogłosiło otwarcie nowego postępowania w ramach Programu Magazynowania Wodoru. Jako cel określono opracowanie Systemu Zasobnika Wodoru z przeznaczeniem do zasilania ogniw paliwowych oraz jego demonstrację w Obiekcie Mobilnym. Ma to kreować alternatywę dla wykorzystania paliw kopalnych oraz stworzyć pole do konkurencji w tworzeniu rozwiązań z zakresu dostępu do „czystej” energii. Za opracowanie założeń, regulaminów i realizację odpowiedzialne jest Narodowe Centrum Badań i Rozwoju.

W artykule poddano analizie główne założenia programu i obecną sytuację prawną związaną z finansowaniem prac badawczych i rozwojowych w tym obszarze. Pogłębione opracowanie dotyczy sposobów wykorzystania partnerstwa innowacyjnego i jego umiejscowienia w systemie aktów prawnych Unii Europejskiej. Dyskusji poddano również koncepcję zamówienia przedkomercyjnego PCP (pre-commercial procurement), która została opracowana w celu wsparcia realizacji prototypów rozwiązań – powstałych w efekcie prac badawczo-rozwojowych – o dużym potencjale ewentualnej komercjalizacji. Procedura ta charakteryzuje się zapewnieniem finansowania produktu lub usługi na wczesnym etapie rozwoju. Stwarza to co prawda pewne ryzyko niepowodzenia przedsięwzięcia, ale z drugiej strony stymuluje rozwój technologiczny.

This paper presents a relationship between Auditory Display (AD) and the domains of music and acoustics. First, some basic notions of the Auditory Display area are shortly outlined. Then, the research trends and system solutions within the fields of music technology, music information retrieval and music recommendation and acoustics that are within the scope of AD are discussed. Finally, an example of AD solution based on gaze tracking that may facilitate music annotation process is shown. The paper concludes with a few remarks about directions for further research in the domains discussed.

Whereas the use of biofuels has attracted increasing attention, the aim of this paper is to investigate the possibility of using sewage sludge as biofuel. Preparation of untreated and stabilised sludge with natural additives is described, as well as combusting method applied and experimental results of combusting are presented based on the assessment of composition of emitted pollutants and their concentrations in the exhaust gas. NOx formation in the exhaust gas has been analysed in depth. The results of investigations have shown that the use of dried sewage sludge possesses a positive energy balance. Therefore, the sludge may be used as fuel. The obtained experimental results demonstrate that during combustion, pollutant concentrations vary depending on oxygen content (O2), while formation of nitrogen oxides is strongly influenced by fuel-bound nitrogen. Also, a generalized equation of calculating fuel bound nitrogen conversion into NOx is presented.

Results of a research study into the velocity field in combustion chamber of internal combustion engine are presented in the paper. Measurements of fresh charge flow velocity in the cylinder axis and near the cylinder squeezing surface were performed. The hot-wire anemometer was used. The measurement results were used for analysis of turbulence field in the examined combustion chamber. It turned out that in the axis of cylinder the maximum of velocity occurs 30 deg before TDC and achieves 6 m/s. In the studied combustion chamber, the maximum value of turbulence intensity was close to 0.2 and it was achieved 35 deg BTDC. Additionally, the maximal velocity dispersion in the following cycles of the researched engine was at the level of 2 m/s, which is 35% of the maximum value of flow velocity. At a point located near the squeezing surface of the piston, a similar level of turbulence, but a the smaller value of the average velocity was achieved. The turbulence field turned out to be inhomogeneous in the combustion chamber.

Artykuł dotyczy odkrycia skarbu złotych monet w Zalewie (dawniej Saalfeld). Książę Prus, Albrecht Fryderyk, został o nim poinformowany przez starostę przezmarskiego ( Preussisch Mark), który wysłał mu 144 monety w 1572 r. Starosta opisał również okoliczności odkrycia. W kancelarii książęcej określono je jako florentinische Guldtgulden, tj. „florenckie złote guldeny”. Autorzy twierdzą, że jest to opis pierwszego odkrycia złotych florenów w Zalewie. Podobny skarb zarejestrowano tam w 1991 r. Monety wysłane w 1572 r. przypuszczalnie stały się częścią kolekcji księcia Prus. Niektóre z florenów odnalezionych w 1991 r. zostały przekazane Muzeum Warmii i Mazur.