This investigation aims to study heat transfer rates and temperature changes within a 5 litter cold box enveloped with water-salt solution as phase change material (PCM). The study begins with design and fabrication o...
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Background: Although evidence indicates that extracorporeal shockwave therapy (ESWT) is effective in treating calcifying shoulder tendinitis, incomplete resorption and dissatisfactory results are still reported in man...
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Salinity gradient energy (SGE) allows two solutions with different salt concentration to mixing and directly into electrical energy by reverse electrodialysis (RED) membrane. High power outputs are forecasted theoreti...
Salinity gradient energy (SGE) allows two solutions with different salt concentration to mixing and directly into electrical energy by reverse electrodialysis (RED) membrane. High power outputs are forecasted theoretically, but in real practice is still relatively low RED power efficiency. In this work, the spacer shadow effects on both membrane and solution compartment resistances are investigated by employing nylon spacer and without spacer. In addition, this experiment also proposes the power density performance of RED membrane under natural wetland water as low saline solution and variation of high saline solution i.e., artificial brackish water (0.3 wt% NaCl) and artificial seawater (3.5 wt% NaCl). The results indicate that the spacer shadow effect on RED membrane has a correlation with energy output generated. The used of spacer led to an increase in stack resistance and decrease in power density compared to without nylon spacer. This result increases the impact of RED renewable power source and brings it closer to practical implementation, especially for the potential natural wetland water as low saline solution. The power output was computed, obtaining a maximum power density of 0.19 W/m2 with variations without spacers, and 0.14 W/m2 with spacers. Results show that of the cell components directly influences the physicochemical principles governing the RED process and is closely related to the cell output parameters. In turn, it is possible to increase the performance of a RED cell by optimizing operation without spacers to avoid the shadow effect.
Retailing temperature-sensitive-products such as sausages, milk, fishes, poultry, etc. requires extra energy for cooling. It is necessary to develop an-energy-efficient-design of cold storage box to preserve these pro...
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The objective in this study is to examine the performance of each compartment of the number of compartments of anaerobic baffled reactor (ABR) to the COD removal of the chilly sauce wastewater. Three-compartments of A...
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The research explores the use of cocoa pod shell (CPS) in rural areas and accessible to the cocoa farmer, applying VOSviewer software. The results show that the production of ethanol or biochar with CPS is not feasibl...
The research explores the use of cocoa pod shell (CPS) in rural areas and accessible to the cocoa farmer, applying VOSviewer software. The results show that the production of ethanol or biochar with CPS is not feasible, the first due to its low sugar content and the second, due to the requirement of processes with high temperatures for the extraction of different chemical compounds (i.e activated carbon). On the other hand, obtaining pellets represents a viable energy potential, since the calorific value is competitive with other biomass; Also, through anaerobic digestion under the ideal conditions, it can generate 55% in biogas of the solid matter used. Additionally, the ashes produced in direct combustion or pellets rep-resent an excellent catalyst, which can be used in transesterification, for the generation of biodiesel, used with other residual oils, giving a plus in the efficient use of resources.
Peripheral nerve regeneration (PNR) following trauma requires the reconstruction of the extracellular matrix (ECM) and the proper stimulation of growth factors. Decellularised small intestine submucosa (SIS) has been ...
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The place attachment theory is a scientific part of the relationship between human behavior and built environment study. The built environment study explains the existence of a building and its landscape. The place at...
The place attachment theory is a scientific part of the relationship between human behavior and built environment study. The built environment study explains the existence of a building and its landscape. The place attachment theory has been used in studying the relationship between human behavior with a religious and historic environment during its development. However, nowadays, this research rarely conducted and often carried out partially. As a consequence, the result analysis is only partially. This study proposed a holistically place attachment to provide a broader discourse in examining the relationship between human behavior and the built environment holistically. Moreover, place attachment theory will be used to preserve the historical religious built environment. In addition, the literature review from the previous studies and discussion methods are essential to support the research. The result shows that there is an opportunity to conduct a study of place attachment theory in supporting the preservation of the historical religious built environment. Thus, the holistic result can be obtained using the place attachment theory, which is the combination of place identity, place dependence, place affect, and place social bonding.
This research study discusses the reinforcement of concrete mix design using abaca fiber. The process of mixing the abaca fibrous concrete used in this mixing is the dry mixing method. The addition of abaca fiber to c...
This research study discusses the reinforcement of concrete mix design using abaca fiber. The process of mixing the abaca fibrous concrete used in this mixing is the dry mixing method. The addition of abaca fiber to concrete mixture was done with abaca fiber composition with fiber variation: 0%; 0.15%; 0.20%; 0,25% and variation of fiber length: 25 mm; 37.5 mm; 50 mm. The specimens of cylindrical material (100mmx200mm) and beam (100mmx100mmx400mm), are tested after the test object reaches the age of 28 days in the Universal Testing Machine (UTM) and are evaluated through the ASTM standard in compressive strength test, splitting tensile strength and flexural strength. The addition of fibers significantly affects the physical properties of the concrete, when the fiber increases the slump value will be smaller so the mixture becomes more difficult to mix. The results obtained by the abaca fiber concrete mixture for the composition (0.15%) and the ideal fiber length (50 mm) by providing an optimum value increase in the compression test of 12.61%, 72.64% tensile test, 98.98% flexural test of the normal concrete mixture.
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