bluuebunny/crossref_metadata_2025_split huggingface dataset:
Diurnal microclimate profile in tropical coastal built environment (case: Universitas Islam Sultan Agung campus area, Semarang)
Authors: Widyasamratri H , Poedjiastoeti H , Putra T A 
Published: January 2022

Abstract
Microclimate is caused by the interaction between atmosphere and earth surfaces in local areas. Built environment has pay attention in microclimate since it considerably affects the thermal earth surfaces. This research is located in tropical coastal area, specifically at Universitas Islam Sultan Agung Semarang campus area as a part of built environment where close to the Java sea. The aim of this paper is to investigate the diurnal pattern of microclimate in research location before modelled to the wider area. A numerical modelling method is applied in this research to simulate the diurnal thermal pattern. The research shows that microclimate is influenced by the earth surface objects and following the sun movement respectively.
Potential transfer of motorcycle mode to BRT Trans Semarang for students to campus in Semarang city
Authors: Oktari K , Haryadi B , Riyanto B 
Published: January 2022

Abstract
The movement of students requires means of a comfortable preferred mode of transportation with a high level of satisfaction. The aim of this research is to identify the characteristics of student trips in the city of Semarang, and to find out the factors for the transfer of motorcycleuse to the Trans Semarang BRT, and to determine steps to improve the choice of transportation modes for the Trans Semarang BRT. The study population was students of Universitas Diponegoro, Universitas Negeri Semarang and Universitas Islam Negeri Walisongo. The sample was taken using a quota sampling technique, and the data was collected using a questionnaire. The results showed that the average trip frequency was one time per day, the average distance traveled was 5-6 km. Travel time is 20-29 minutes for motorcycleusers and 30-39 minutes for BRT Trans Semarang users. On the reason for choosing the mode there is a difference where students choose the motorcycle mode due to speed and practical factor, while students choose the BRT Trans Semarang mode because it is cheap. The dominant factor affecting the transfer of motorcycle to the Trans Semarang BRT towards the campus of students in the city of Semarang is that if on the way from the bus stop to the final destination there is no need to change transportation, there is a Passenger Information System at each stop, and a maximum waiting time of 5 minutes. Increasing the travel time is a step to improve the choice of transportation mode for the Trans Semarang BRT.
Analysis of the availability of water resources using the Thornthwaite-Matter water balance method with dual reservoir development in residential locations in Tangerang regency
Authors: Mulyadi D , Wahyudi S I , Soedarsono  
Published: January 2022

Abstract
Many settlements still use groundwater sources and this can cause a decrease in the ground water level. There is a need for alternative sources of water to meet the water needs of settlements. The purpose of this study was to determine the magnitude of the surplus or deficit of water in Tangerang Regency, Indonesia and also to determine the amount of water demand for the population in the region. Therefore, it is necessary to analyze the planning of dual reservoirs in providing groundwater for residential areas in overcoming the problem of drought in the dry season. This research method uses Thornthwaite-Matter water balance analysis and multiple reservoir design planning. The results showed that the estimated water surplus occurred from January to April with a magnitude between 25.07 mm to 186.09 mm. The water deficit occurs from July to October with a magnitude between 127 mm to 219 mm. The pattern of water consumption in the household is used as a reference for making reservoirs to maintain the availability of air in residential areas. The dual reservoir will be equipped with sensors that can help determine the water level so that it is easy to detect water needs and can prevent water wastage.
Analysis of water distribution systems and head losses using the hardy-cross method
Authors: Silvia C S , Safriani M , Ikhsan M , Rauza U 
Published: January 2022

Abstract
Distribution services have not been running optimally at PDAM Tirta Meulaboh, that This study aims to determine the level of pressure loss in the PDAM’s clean water pipe network. The method used in this research is a quantitative descriptive survey method supported by primary data and secondary data. Calculation of the amount of pressure loss using the hardy cross method. The results showed that the observed value of discharge with the highest water consumption was at 18:00 WIB at 0.172 m3 / person, while for the lowest use was at 14:00 WIB at 0.119 m3 / person. It can be concluded that this time is the peak time for water consumption. High-pressure water where the maximum average is 0.00000599 m, because high pressure is not adequate. The maximum loss of high pressure is found in the loop (VII) of 2.57025 m or 0.257025 atm, for the minimum pressure there is in the loop (VI) of - 0.00024 m or -0.000024 atm. It is necessary to re-evaluate the distribution network system by PDAM such as surveys to find out the causes of high water pressure losses to customers such as surveys for water leaks in distribution pipes, replacing old pipes.
Potential of peat carbon storage in natural forests Tripa Peat Swamp at Aceh Barat Daya District
Authors: Wahid I , Djufri D , Supriatno S , Abdullah A , Samingan S , Zulfikar Z 
Published: January 2022

Abstract
Carbon storage is the total weight of carbon stored in the ecosystem at a certain time, especially in natural forests in the Tripa peat swamp area of Aceh Barat Daya. Peatlands are wetland ecosystems that are formed by the accumulation of organic matter on the forest floor from weathering of the vegetation on it over a long period of time. The research objectives were 1) to calculate peat soil carbon storage and 2) to measure the depth of peat soil in natural forest in the Tripa peat swamp area, Aceh Barat Daya Regency. The research activity was carried out from February to March 2021, in a natural forest in the Tripa Aceh Barat peat swamp area, divided into three stations and at each station, three sampling plots were made. Data collection using purposive sampling technique, Analysis of carbon stock was analyzed using the formula for calculating carbon stock by entering data on the percentage of soil organic carbon in the laboratory, and data on peat depth in a descriptive analysis. The results showed that the amount of peat soil carbon storage, especially in natural forest in the Tripa Aceh Barat Daya peat swamp area, was 2.556 tons/ha and the peat depth range was fibric with a depth of 0-95 cm, hemic 96-292 cm, and substance 293-310.
The structure community of zooplankton and environmental conditions of the Kalimireng River estuary, Gresik, East Java
Authors: Yanuhar U , Musa M , Oktaviana A , Junirahma N S , Caesar N R 
Published: January 2022

Abstract
Water quality monitoring is a key component in the management of these important water resources and ecosystems. Biological indicators can be monitored continuously and are easy instructions for monitoring the occurrence of pollution. One of the biological parameters that can be used as a marker of environmental conditions is plankton. zooplankton can be used as study material to determine the quality and water productivity. The method used in this research is descriptive to determine the water quality condition in the estuary of the Kalimireng river biologically through the identification and characterization of zooplankton. Observations of plankton identification, plankton abundance, dominance index, and characterization of zooplankton were analyzed by fluorescence microscope observation. Three species of zooplankton were found in the waters of the Kalimireng estuary, Leptodiaptomus sp., Canthocamptus staphylinus, and Diaphanosoma bracyurum. Zooplankton is more abundant in water conditions at high tide compared to water conditions at low tide. At high tide, the highest abundance value was obtained at the station I at week 3, 843 ind/mL. At low tide, the highest abundance value was obtained at the station I at week 2,251 ind/L. The highest Dominance Index (D) at tidal water conditions is shown at station 2. This indicates that there is a community that dominates at that station.
The addition of nutmeg (Myristica fragrans) essential oil to intensify the aroma as a replacement of rum considering halal supply chain for cookies that use durian (Durio zibethinus) seeds waste-based flour to create sustainable advantages
Authors: Mahyiddin Z , Indani  , Suhairi L , Ulya Z , Munanda Z 
Published: January 2022

Abstract
The sources of aroma can be varied according to the food’s type and it is part of the ingredients that has an important role to increase people interest in certain foods. However, the most popular source of aroma is rum which is not halal for Muslim community. In this research, the researcher wanted to see the effect of adding essential oil from nutmeg seeds to the addition of the aroma of cookies made from durian seed flour to see the acceptance of customers of the product innovation using nutmeg essential oil to increase the aroma of cookies or food products that usually using rum or non-halal products and seeing the long-term impact that could possibly create sustainability advantages by occupying the waste of durian seed in to flour to substitute wheat flour. This study uses an organoleptic test. The science that uses the human senses to measure the texture, appearance, aroma, and taste of a food product is called sensory or organoleptic evaluation. Assessment of appearance, taste, and texture describes consumer acceptance of a product. The results show that consumers acceptance for this product innovation well so that the control prescription that can be given for this product innovation can be continued. The second experiment got the highest response compared to the first and third experiments.
Vegetation analysis of the Forest Park of Pocut Meurah Intan (THRPMI), Seulawah Subdistrict, Aceh Besar, Aceh Province
Authors: Djufri D , Hasanuddin H , Abdullah A , Puspa V R 
Published: January 2022

Abstract
A study entitled “Vegetation Analysis of the Forest Park of Pocut Meurah Intan, Seulawah Subdistrict of Aceh Besar, Aceh Province” has been conducted since April 2019 until November 2019. A transect method and squares were used in this study. The transect method was used to record species composition throughout the observation stations (inventory of species), including stands of pine (Pinus merkusii) with ten stations transect, stands of eucalyptus (Eucalyptus urophylla), stands of cacao (Theobroma cacao), and natural forests within a radius of 2 km around the THRPMI office. The squares method was used to record the species in the same locations to replicate each station by ten squares of samples for vegetation analysis. The parameters measured in the field were frequency, density, and dominance of each species. Analysis of vegetation covered Importance Values (IV), Diversity Index (H ’), and the Similarity Index (SI). Results showed that there were 49 familia found with the composition of species in the entire observation stations comprising of 111 species with 58 species of trees, 12 species of shrubs, and 41 species of herbs. Additionally, the results showed that the species of vegetation with the highest IV were coarse grass (Imperata cylindrica), lawn pait (Axonopus compresus), and selasi (Vernonia cinerea) with IV of 72.01, 65.34, and 57.24, respectively. Results of analysis Species Diversity Index (H ’) showed that the Pinus merkusii had H’ of 2,134, whereas Eucalyptus urophylla had H ’of 1.965, and Theobroma cacao had H’ of 1,067. The results of the analysis of Community Similarity Index showed that all stations had the same relative SI of 75%. It can be concluded that the species composition of the study area dominated by tree species, species diversity index (H ’) in all observation stations varied ranging from 1.067 to 2.134, and the relative Community Similarity Index was 75%.
Identification of antioxidant components of Gayo Arabica Coffee Cascara using the GC-MS method
Authors: Lestari W , Hasballah K , Listiawan M Y , Sofia S 
Published: January 2022

Abstract
Approximately half of the coffee will become by-product in coffee processing. This by-product needs a special focus because of its content can be pollutant for nature. One of the coffee by product that underutilized is cascara, composed by pulp and husk. The major by-product of dry process is husk whereas pulp is the major by-product from wet process. Nowadays, there are various ways to utilize coffee by-product. Previous studies have shown that coffee has a potent antioxidant activity which can be a solution in dermatology problem. This research aims to identify the antioxidant component of coffee arabica husk and pulp of Gayo, Aceh Tengah, Aceh using GC-MS method. One of the compounds that identified in both coffee husk and pulp is caffeine. Caffeine is a potential natural antioxidant and it also has anticellulite effect to skin. The other compounds found in coffee husk and pulp also have benefit in dermatology. We conclude that coffee arabica husk and pulp can be a potential natural source to eradicate dermatologic problem.
Sensory evaluation of food combination products from banana and sweet potato flour as a healthy food
Authors: Safrida S , Heirina Y , Noviasyah N 
Published: January 2022

AbstractBananas and sweet potatoes are one of Indonesia’s horticultural commodities that have various functions and benefits. Young bananas and sweet potatoes can be processed into various kinds, one of which is shredded. The purpose of this study was to analyze the public’s knowledge about the combination product of banana flour and sweet potato and to determine the level of preference for food products made from banana flour and sweet potato flour as a substitute for flour edge. Design of the study was a Completely Randomized Design (CRD) with 3 treatments and 8 replications. Product preference was carried out by organoleptic test on a hedonic scale. Consumer acceptability with the organoleptic test was carried out by 25 panelists. The results show that the community already understands the knowledge about banana and sweet potato flour and their processed products after participating in the training by 98%. The hedonic test results obtained by the respondents like the products of sponge cake and pudding from banana flour, while the products of kastengel and plain bread that are preferred by the respondents are products made from a combination of banana flour and sweet potato flour. Innovation in creating preparations made from banana and sweet potato to be processed into healthy food products and have promising business opportunities to increase people’s economic income.
Biodiversity of commercially important groupers (Epinephelidae) in Aceh, Indonesia: A checklist
Authors: Fadli N , Damora A , Muchlisin Z A , Dewiyanti I , Ramadhaniaty M , Nur F M , Batubara A S , Razi N M , Macusi E D , Siti-Azizah M N 
Published: January 2022

Abstract
The groupers, locally known as “kerapu” in Indonesia, are commercially valuable fish in Indonesia, including Aceh. The groupers are the first fish family to be plundered in most countries’ fisheries industries. However, the biodiversity information of the groupers fished in Aceh is limited. This study was aimed to inventories the grouper species landed in Aceh fish landing sites. The data collection was performed in some fish landing locations (TPI) located in Aceh. In general, this study revealed that Aceh has high grouper diversity. In total, 35 species of the Epinephelidae family were recorded. Epinephelus was the dominant genus found, followed by Cephalopholis, Plectropomus, Variola, Aethaloperca, Anyperodon, and Hyporthodus. Simeulue, Weh island, and Banda Aceh were the locations with the highest diversity of grouper in Aceh. Overall, the data collected from this study would be beneficial for the future management plan of grouper in Aceh and Indonesia.
Histopathological of the hepatopancreas of Pacific white shrimp (Litopenaeus vannamei) infected by white feces disease
Authors: Damora A , Salsabila C , Muhammadar A A , Arisa I I , Iskandar C D , Simanjuntak D G , Fadli N 
Published: January 2022

AbstractThe high production of Pacific white shrimp (Litopenaeus vannamei) in Pidie Jaya impacts water quality decline around the ponds due to aquaculture waste. This condition causes shrimp to be susceptible to diseases, one of which is white feces disease (WFD). The objective of the study is to determine the level of hepatopancreatic damage caused by WFD through histopathological performance. Four shrimp samples were taken randomly from two semi-intensive ponds in Meurah Dua District, Pidie Jaya Regency, Aceh, Indonesia. The results showed that the histopathology in the hepatopancreas was severely damaged. The damages include vacuolization, fat degeneration, and necrosis in ponds with higher ammonia concentrations. According to pH, temperature, salinity, and ammonia concentrations, ponds near residential areas were more polluted than ponds far from residential areas. This condition is projected by the more damaged histopathological obstruction of the shrimp’s hepatopancreas.
The identification of optimal operating parameters under high energy efficiency conditions for a single polymer electrolyte membrane (PEM) fuel cell
Authors: Bratu I G , Ene R F , Vulpe M , Uleanu F , Giosanu D 
Published: January 2022

Abstract
The performance of PEM fuel cells is influenced by several factors such as: the operating temperature of the cell, the reactant gas flow, work pressures, the reaction gas humidity. In the present work we aimed to identify the optimal values of these parameters for operation of a PEM cell to achieve maximum power in conditions of high efficiency; the technological possibilities of its use in a portable energy application have been evaluated. Experimental measurements regarding the integrating polymeric membrane in three different fuel cell construction designed were performed. The influence of the mechanical compression of the GDL diffusion layer on the total internal resistance of the cell was achieved by comparative analysis of the polarization curves. It was found that as the deformation level of the MEA increases, the power generated by the battery increases progressively. The resulting experimental data subsequently allowed the design and implementation of a PEM fuel cell assembly, fully functional at power level, corresponding to the number of constituent elements.
Entropy analysis in spray cooling for dosing water injection
Authors: Lacour S.O.L. , Feidt M. 
Published: January 2022

Abstract
Spraying water in air improves air-cooling capacity, which then relies on the evaporation of water. Even for small drop sizes, literature reports that the evaporation remains limited inside the spray and below saturation limits. In this article, we describe the evolution of thermodynamic quantities in a mixture of air and evaporating liquid water. A complete and coherent formulation is used to express enthalpy, entropy and chemical potential. At constant enthalpy, we show that the chemical equilibrium corresponds to an intermediate state in which droplet evaporation is not complete and entropy is maximum under certain conditions. Results are compared with some experimental values measured in a wind tunnel downstream of a spray. The calculated values are consistent with observations. Cooling efficiency is discussed for the various parameters, which are the amount of water, air temperature and ambient humidity. Then, the numerical approach is inverted in order to forecast the amount of water needed to reach a target cooling temperature. This numerical approach is used to set water flow depending on inlet flow conditions and cooling objectives.
Innovative energy efficient thermal insulation to ensure indoor comfort in nZEB buildings
Authors: Mladin Emilia-Cerna , Calbureanu Madalina , Malciu Raluca , Calbureanu Diana 
Published: January 2022

Abstract
The paper presents the analysis of water and heat transfer through walls being thermally insulated with vegetal materials. The analysis identifies the risk for condense accumulation in the outer layers of external walls of a common residential building located in the coldest climatic regions of Romania. Different wall structures and insulation thicknesses are systematically considered with statistical extreme temperature and humidity outdoor values. Results are useful in designing nZEB individual houses with green and sustainable technologies that also provide energy savings and indoor conditions for good comfort and health in these desired building concept.
Composite materials based on natural fibres applied for structural reinforcement
Authors: Bou Abdallah G , Ivanova I , Assih J , Diagana C , Dontchev D 
Published: January 2022

AbstractEnvironmental problems and environmental protection triggered a rapid development of natural fibres as sustainable materials for the reinforcement of reinforced concrete structures. Synthetic fibre polymer composite materials have been widely accepted by the construction industries as an effective external reinforcement material to rehabilitate deficiencies in existing structures. These materials have exceptional performance such as high strength to weight ratio, corrosion resistance and lightness. However, the disadvantages include high costs during manufacturing and end-of-life services, less environmentally friendly and causing adverse effects on human health. This article presents an experimental program on the use of natural fibres as reinforcement in composite materials for structural strengthening. Different types of natural fibre fabrics (hemp, flax, mixed hemp and cotton) in terms of their mechanical properties were studied. The fibre and fibre fabric sheets were tested in tension test and compared with carbon and glass fibre fabric sheet as reference. So, this study carries out the effect of natural hemp and flax fibre fabric thickness on ultimate loads of specimens. In addition, the ultimate load and stiffness of strengthened beams were investigated. In fact, the results show that the reinforcement technique allows to increase the load-bearing of strengthened structure by 8% to 35% in bending tests.
Domestic peat pots biodegradation
Authors: Uleanu F , Giosanu D , Vulpe M , Bratu G , Vîjan L 
Published: January 2022

Abstract
Biodegradable nutrient media based on cellulose fibers and peat with added protective materials and stimulating represent the higher form of transplant used in current technologies for producing plant seedlings. Worldwide intensive development of the pots production industry (the effect of increasing demands from agriculture and their quality level in terms of degradability and operational sustainability, with outstanding results in reducing stress factors) led to fast expansion of their use with a high economic efficiency. Determination of potential and effective degradation was achieved by the method for determining cellulolytic activity in soil. Biodegradation potential recorded differences during the course of experience in the sense that it increases as the pots exposure time to treatment is higher. In conclusion, the pots treatment (planted/without plant) has a great influence on the effective biodegradation.