Negative / Null Result ReportOpen accessTechnology
Domagoj Nakić, Katarina Licht, Hana Posavčić et al. · 2025 · Results in Engineering
Increasing amounts of sewage sludge (SS) and phosphorus-induced eutrophication are major global issues, and this study addresses both under a unified approach, by exploring the potential of biochar derived from SS gasification in an experimental plant as an efficient adsorbent for phosphate removal in synthetic wastewater. The key innovation involves the use of a novel biochar, generated as a byproduct of an innovative gasification process, without any additional pretreatment. This approach could help reduce both environmental and economic burdens in potential real-world applications. Pristine
View details →Negative / Null Result ReportOpen accessTechnology
Bongsuk Sung, Cui Wen · 2018 · Energies
This study explores how political–economic forces could affect export performance in the renewable energy technologies market. We conduct panel framework analyses to verify the characteristics of panel data for 19 countries before establishing the panel estimator meant to test the effects of political–economic forces on export specialization. We consider the results of the panel framework analyses and develop an empirical model to test casual dynamic relationships between political–economic forces and export performance. The results from the least squares dummy variable-corre
View details →Negative / Null Result ReportOpen accessTechnology
Behnam Bolhari, Nazanin Chitsaz, Sara Nazari et al. · 2023 · The Scientific World Journal
Objectives. This study aimed to assess the effect of addition of fluorohydroxyapatite (FHI) on biological and physical properties of mineral trioxide aggregate (MTA) Angelus. Materials and Methods. In this in vitro, experimental study, nano-FHI powder was first synthesized, and the morphology and chemical structure of particles were evaluated by scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). Three groups were evaluated in this study: MTA Angelus, MTA modified with 10% FHA, and MTA modified with 15% FHA. After mixing, the materia
View details →Negative / Null Result ReportOpen accessTechnology
Kerong Ren, Haobing Han, Wentao Xu et al. · 2023 · Applied Sciences
To address the impact of rivet arrangement on the strengths of riveted lap joints, the failure modes and failure mechanisms of riveted lap joints were first studied using finite element analysis software. Next, the effects of the number of rivets, rivet rows, rivet arrangement, and row spacing on the lap joint strength were studied using the peak load as the evaluation index. Then, we proposed the concept of line load density to solve the problem that a varying rivet spacing and rivet edge distance will change the width of the sheet and thus the maximum load capacity, which is used as an index
View details →Negative / Null Result ReportOpen accessTechnology
Anawati Anawati, Hidetaka Asoh, Sachiko Ono · 2018 · International Journal of Technology
The characteristics of coatings formed by Plasma Electrolytic Oxidation (PEO) are affected by the composition of metal substrates. In this work, the effect of alloying element Ca (0, 1 and 2 wt%) on the degradation behavior and apatite-forming ability of PEO coated AZ61 magnesium alloys was clarified by means of polarization measurements in 0.9% NaCl solution and an in-vitro test in Simulated Body Fluid (SBF), respectively. The AZ61 alloys were subjected to plasma electrolytic oxidation at a constant current of 200 A/m2 at 25°C for 8 min in 0.5 M Na3PO4 solution. The surface investigation sugg
View details →Negative / Null Result ReportOpen accessTechnology
Yanchun Yin, Chuanru Yao, Yueyong Han et al. · 2024 · Energy Science & Engineering
ABSTRACT As an effective means of coal burst prevention, large‐diameter drilling pressure relief technology have been widely used in coal burst mines in China. Engineering practice shows that drilling pressure relief has obvious time‐effect. Through the establishment of drilling pressure relief numerical model, the evolution law of stress field and plastic zone in different periods after drilling was studied. The evolution of the pressure relief effect of large‐diameter borehole is closely related to the development degree of cracks around the borehole. The stress transfer process after drilli
View details →Negative / Null Result ReportOpen accessTechnology
Jolanta Grochowska, Renata Tandyrak · 2021 · Applied Sciences
A study was carried out in the Kartuzy lake complex, which has been a receiver of raw domestic sewage since the 1950s. In 2018, the city’s sewage system of Kartuzy was modernized. An analysis of the water quality prior to the modernization of the sewage system revealed that the total phosphorus (TP) load that was introduced to the individual lakes from external sources substantially exceeded the dangerous load concentration (defined by Vollenweider) that causes accelerated eutrophication. The annual TP load introduced to the analyzed lakes in 2017 exceeded the critical load by 200% (Mielenko)
View details →Negative / Null Result ReportOpen accessTechnology
Anna Skic, Zbigniew Stropek, Kamil Drabik et al. · 2026 · Applied Sciences
Bone tissue exhibits viscoelastic behavior, and stress relaxation analysis provides valuable insight into its time-dependent mechanical performance. This study aimed to evaluate the effects of allicin supplementation on the mechanical and viscoelastic properties of tibial bone in Bovans Brown laying hens. Tibiae of 68-week-old hens were subjected to three-point bending tests to determine quasi-static mechanical properties, as well as stress relaxation tests conducted at three deformation velocities (0.1, 1, and 10 mm/s). Stress relaxation behavior was described using a five-parameter generaliz
View details →Negative / Null Result ReportOpen accessTechnology
Sara Havrlišan, Martina Tokić, Štefanija Klarić et al. · 2026 · Tehnički Glasnik
This research analyses the impact of infill density and layer thickness on the tensile strength of test samples fabricated using FDM 3D printing, with a particular focus on comparing samples produced with and without an adhesion layer. A two-factor factorial experimental design was employed, consisting of two levels and three replications. The infill density (20% and 50%) and layer thickness (0.1 mm and 0.2 mm) were defined as input variables, while tensile strength served as the output variable. Statistical methods, such as ANOVA, were used to analyse the experimental data and evaluate the si
View details →Negative / Null Result ReportOpen accessTechnology
Cecília Molnár, Zsófia Pálya, Rita M. Kiss · 2021 · Applied Sciences
Folk dance is a collection of traditional dances that requires years of practicing to perform correctly. The aim of the present study was to develop a complex biomechanical measurement procedure that investigated Hungarian folk dancers’ balancing ability and lower body kinematics through a dance movement called “Kalocsai mars”. Therefore, 11 dancers’ motion (5 female and 6 male; age: 20.5 ± 2.5 years; height: 173.82 ± 7.82 cm; weight: 64.77 ± 8.67 kg) was recorded with an optical-based motion capture system and force platforms simultaneously. Before and after the dancing session, static balanc
View details →Negative / Null Result ReportOpen accessTechnology
Awham Jumah Salman, Zahraa Fakhri Jawad, Rusul Jaber Ghayyib et al. · 2022 · Energies
Silica is considered one of the most prevalent components in the Earth’s shell and is synthesized for use in technological applications. Nevertheless, new methods for finding a better, cheaper, and more ecologically friendly supply of silica with less energy consumption are unavoidable. This study investigates whether nanopowders made from waste with a great silica amount (fly ash and glass) can be utilized as fillers in an epoxy glue to enhance its characteristics. Four different contents (5, 10, 15, and 20 wt%) of nano–fly ash, nanoglass, and nanosilica powder were introduced into the sample
View details →Negative / Null Result ReportOpen accessTechnology
Sunthorn Sotthibandhu · 2003 · Songklanakarin Journal of Science and Technology (SJST)
The territorial behavior of the red-whiskered bulbul, Pycnonotus jocosus, was studied in the semiwild habitat of a bird farm compound in the District of Chana, Songkhla Province, the south of Thailand. The male and female birds were bred and reared in the farm till they reached maturity following which they were released to the wild. A mating pair was later formed and their territory established in the farm area. A decoy was used to simulate a natural intruder to the defended area. Ten test stations were sited in the four cardinal points of the compass and with reference to the farmhouse. The
View details →Negative / Null Result ReportOpen accessTechnology
Laochareonsuk, T., Kaewtaro, S. · 2005 · Songklanakarin Journal of Science and Technology (SJST)
The optimal conditions of nata production from the fermentation of sugar palm syrup by Acetobacter xylinum TISTR 107 was studied. The results showed that optimized production for a litre of sugar palm syrup medium should compose 15 ºBrix concentration, 7.0 g NH4H2PO4 and 0.7 g MgSO4. 7 H2O at pH 4.25 and incubation at room temperature. The thickness of nata production reached 1.15 cm in 9 days. Sensory evaluation showed that there were no significant difference in odor and acceptability between the nata from sugar palm syrup and the traditional nata production from coconut juice whereas there
View details →Negative / Null Result ReportOpen accessTechnology
Alessandro Guarnieri, Fabiana Laurenti, Salvatore Mazzei et al. · 2025 · Applied Sciences
Table tennis (TT) is a high-speed sport requiring integrated cognitive and motor skills. However, the existing assessment tools have failed to replicate its sport-specific demands. Therefore, this study aimed to evaluate the validity and reliability of the Reactive Table Tennis test designed to assess cognitive–motor performance in TT. Sixty athletes were recruited from TT, combat sports (CS), team sports (TS), and track and field (TF). Participants were required to react to 10 visual stimuli randomly emitted from three devices placed 3 m frontally by performing 1.5 m lateral or frontal displa
View details →Negative / Null Result ReportOpen accessTechnology
Joanna Kazimierowicz, Izabela Bartkowska, Maria Walery · 2020 · Energies
This study aimed to determine the effect of the low-temperature conditioning of excess dairy sewage sludge using solidified carbon dioxide on the efficiency of methane fermentation. An increase in the solidified carbon dioxide to excess dairy sewage sludge volumetric ratio above 0.3 had no significant effect on chemical oxygen demand concentration in the dissolved phase. The highest chemical oxygen demand values, ranging from 490.6 ± 12.9 to 510.5 ± 28.5 mg·dm −3 , were determined at solidified carbon dioxide to excess dairy sewage sludge ratio ranging from 0.3 to 0.5. The low-temperature cond
View details →