bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Patommo-Sidrap Landfill Lifespan Estimation
Authors: Lando Asiyanthi Tabran , Djamaluddin Abdul Rahman , Arifin Abdul Nasser , Aprianto Imam 
Published: December 2022

Abstract
Sidenreng Rappang (Sidrap) Regency has a landfill called the Patommo landfill, which has implemented a sanitary landfill model. Patommo landfill is located in Patommo Hamlet, Arawa Village, Watang Pulu District, Sidrap Regency, approximately ± 3 Km from Lawawoi, the capital of Watang Pulu District, and ± 10 Km from Pangkajene, the capital of this regency. This landfill has adequate facilities and infrastructure as a sanitary landfill. The waste transported to the landfill is managed in five stages: weighing, demolition, distribution, solidification, and covering the waste with soil. This study focuses on the lifespan of the Patommo landfill in the Sidrap district. The lifespan is obtained by calculating the amount of total waste per year, waste density, waste volume, and the prediction of the amount of waste in the future based on population growth. This research takes reference data from 2016, which will be compared with current conditions. The results of analyzing data obtained the average value of the waste density of Sidrap District is 1379.51 kg/m3. Therefore, the volume of waste entering the Patommo landfill is 47,395.95 m3. The total volume of landfill capacity is 1,708,737.64 m3, with a volume for soil cover of 624,300.64 m3, and the waste volume is 1,084,447 m3. Estimating the lifespan of the Patommo landfill without reduction efforts is 17 years or will be full in 2033, while the estimation of lifespan with reduction efforts is 32 years or will be full in 2048.
Analysis of NO2 gas concentration from the transportation sector through direct measurement and the Caline 4 dispersion program on the Makassar City Toll Road
Authors: Zakaria R , Ramli M I , Hustim M , Alimuddin H , Pratiwi Anisah 
Published: December 2022

Abstract
Makassar as a developing city is experiencing development from the transportation sector. This resulted in the increasing number of vehicles. The increase in the number of vehicles produces emissions that cause air pollution, including NO2 emissions from motor vehicles. Currently NO2 concentration can be determined by direct measurement using the Gries Saltman method and pollutant prediction using the Caline program. This research was conducted on the Makassar city toll road which is divided into nine sample points. This study aims to determine the level of NO2 concentration from the transportation sector on the Makassar city toll road. Concentration results from direct measurements and predictions of caline are compared to show the level of concentration present. The results of the NO2 concentration are still below the threshold value that has been set in the latest applicable regulations, which is 200 g/Nm3 with a measurement time of 1 hour. The high or low value of NO2 concentration is influenced by the vehicle volume factor, where the NO2 concentration increases along with the increase in vehicle volume. In addition, it is also influenced by meteorological factors. Based on the results of the Caline-4 software output, the results obtained from the distribution of NO2 concentrations at each receptor found on the Toll Road in Makassar City, it can be stated that it is still below the threshold value set in the latest applicable regulations, which is 200 g/Nm3 with time measurement for one hour.
Concrete Pile Defect Identification: Insights from Cross-Hole Sonic Logging and High Strain Dynamic Pile Test
Authors: Ly Chungyean , Eng Chandoeun , Heng Muoy Yi , Yos Phanny 
Published: December 2022

Abstract
This paper aims to identify the types of defects, location of defects, size of defects, and capacity of five concrete piles using a High strain dynamic pile test and Cross-hole sonic logging test. In this study, Cross-Hole Sonic Logging method (CSL) is a potent quality-control tool that exclusively detects much smaller flaws with high accuracy with utilizing velocity and first arrival time (FAT) from ultrasonic waves to find out the integrity of the drill shaft. From CSL test, the bearing capacity needs to be calculated manually using a waterfall diagram and soil profile. Moreover, the high strain dynamic pile test is used to identify integrity and bearing capacity of concrete pile via resistance analysis down to the pile and split of the base to shaft resistance when only pile head measurements are taken then using Case Method and CAPWAP analysis. Through this analysis, the bearing capacity can be interpreted; the Belta (damage factor) is applied to estimate location and size of the defect in the concrete pile. Based on the result of CLS test for three concrete piles, P01, P04, and P10, indicated that P01 and P04 are “Good” pile integrity with the bearing capacity of 4583kN and 6600kN, while P10 showed as “Potential defect at depth 9.25m to 10.25m” of pile integrity with bearing capacity of 6600kN. Furthermore, High strain dynamic pile test of two concrete piles, P2E and P2P, showed that the integrity category is “Ok” with bearing capacity 9896kN.
Study of Yeh Embang Watershed Characteristics for Sustainable Water Management
Authors: Eryani I Gusti Agung Putu , Jayantari Made Widya , Artana I Nyoman Nuri 
Published: December 2022

Abstract
One of Bali’s perennial watershed that is experiencing the effects of climate change is the Yeh Embang Watershed. If it is not managed holistically, the sustainability of the current water availability will be impacted. This research will analyse the Yeh Embang Watershed’s characteristics in order to evaluate the watershed’s condition and decide how to manage the sustainability of the water resources. For this research, topographic information, boundary maps of the Yeh Embang watershed, maps of river network, maps of land use, and maps of soil types were all used. The appropriate sustainable management for Yeh Embang Watershed should be determined based on the characteristic. According to the characteristics of the Yeh Embang Watershed, integrated management from upstream to downstream be necessary for the watershed to be managed sustainably. In the upstream area, it is hoped that the forest will be protected by forest conservation to reduce the risk of erosion that could lead to flash floods, and the downstream portion of the Yeh Embang watershed will be structured to prevent flooding from harming the surrounding area. Infiltration wells can be used as a water-saving measure in residential areas in the Yeh Embang watershed to increase the amount of water that is absorbed and lessen surface runoff.
Sengkang City Runoff Management in Primary Drainage Channels with One Dimensional SWMM model
Authors: idris M , Lopa R T , Karamma R , Maricar F 
Published: December 2022

Abstract
The main problem in Sengkang City is the occurrence of flood with a height between 0,5 to 1 m in the city center which is an economic area, these is visually caused by the insufficient capacity of the drainage channel to drain runoff water. Topographically, the economic center of Sengkang city is a basin area which is the downstream part of 4 primary channels, namely channels A, B, C, and D. The purpose of this study was to analyze the existing conditions of inundation and volumes and to make modification plans to reduce the area and volume of flooding in Sengkang City. In this study, topographic measurements, data on channel cross-sectional conditions and elevations were carried out as well as data collection on rainfall and land use to be used as input data for the rainfall-runoff SWMM simulation that was appropriate and under existing conditions. Simulations were carried out using rainfall intensity 5-year and 10-year return periods and modifications were made to an additional storage capacity of 2.000 m3 in primary channel A. From the simulation results, the flood volume for 5-year return periods (R5) of 96.375m3 (11 inundation areas), 10-year return periods (R10) of 148.901 m3 (12 inundation areas), and modification of 10-year return periods (R10) of 43.990 m3 (9 inundation areas) with a percentage decrease of 70,46% and reduce of 3 inundation areas.
The Effect of Climate Changes on Sediment Concentration in the Saddang Irrigation Area
Authors: Syamsuddin G H , Pallu M Saleh , Maricar F , Bakri B. 
Published: December 2022

Abstract
Saddang irrigation area does not get water evenly this is due to, among other things, the condition of the network experiencing a decrease in capacity. The decrease in capacity was caused by sedimentation at the bottom of the channel and the condition of the channel lining was damaged, resulting in seepage/leakage and the building and sluice gates were not functioning properly. This study aims to analyze seasonal changes to sediment concentrations in the main channel Rappang Pinrang Regency. This research was conducted in the Rappang main channel, Pinrang Regency with the coordinates of 3°41′44.93″S 119°40′43.12″E. Data collection was divided into 3 research locations, namely the upstream, middle and downstream of the Rappang main channel with a distance of ± 33 km from upstream to downstream. Sediment sample testing was carried out at the Civil Engineering Soil Mechanics Laboratory, Hasanuddin University, Makassar. Data collection in the form of flow velocity, suspended load and flow rate was carried out in the upstream, middle and downstream areas of the Rappang main channel. The expected result of this study is to find the value of the effect of seasonal changes on sediment concentration in the Rappang Pinrang Regency.
Analysis The Influence of Hydrometeorological Disaster in Kera River Wajo Regency
Authors: Pratama M R , Maricar F , Karamma R , Lopa R T 
Published: December 2022

Abstract
Recently, Indonesia has been dominated by hydrometeorological disasters which include landslides, tornadoes, droughts and floods. Hydrometeorological disasters cannot be separated from the consequences of climate change that occur. The purpose of this study is to examine the influence of climate change on hydrometeorological disasters in the Kera River of Wajo Regency. This research uses quantitative methods. The data used are primary data in the form of field surveys and secondary data in the form of river topographic data and TRMM rainfall. The climate change greatly affects the increase in rainfall in the watershed, and flooding in the Watershed. Changes in rain characteristics in the watershed, in the form of annual rain height and maximum daily rain tend to increase, resulting in flooding around the Kera River area. The highest discharge that occurs at 2 year return period is 147.1 m3/s, 5 year return period is 212.5 m3/s, 10 year return period is 251.3 m3/s, 25 year return period is 296.1 m3/s. Therefore, it is necessary to carry out flood disaster mitigation with structural methods shown, by normalizing rivers, building flood embankments respectively. The results of this study found that climate change that occurred in the Kera River had an effect on the number of hydrometeorological disaster events, especially floods.
Spatial Modelling for the Calculation of River Capacity: Case Study Downstream Area of Wanggu River Kendari
Authors: Fadlin F , Thaha M A , Maricar F , Hatta M P 
Published: December 2022

Abstract
Spatial modelling of flood-prone areas will provide maximum results if it is supported by the accuracy of the data acquired, mainly related to elevation data or the area’s topography. Spatial modelling generated from accurate topographic data can estimate the river’s carrying capacity. This study built a spatial model using data from aerial, terrestrial, and hydrographic surveys. Aerial surveys were conducted using UAV corrected by terrestrial surveys, GCP, and ICP. Testing the accuracy of the spatial model is carried out by comparing the results of current field velocity with the results of 2D Hec-Ras numerical simulations using a variation of the manning coefficient. The combination of aerial, terrestrial, and hydrographic surveys produces a cross-sectional spatial model of the river, which is used in calculating the river’s carrying capacity. The river’s capacity is calculated using a 2D numerical simulation method using Hec-Ras software and verified by a mathematical approach based on the flood hydrograph curve. The results showed that the horizontal accuracy of the GCP was 2.8 cm and the vertical accuracy was 6.5 cm. The results of testing the vertical elevation accuracy of aerial photographs on terrestrial topographic data measured in the field (ICP) have a Mean Absolute Percentage Error (MAPE) value of 5.81%. According to the spatial model, the manning roughness value is 0.06-0.09. The river’s capacity based on numerical simulations is 1.700.766 m3, and the results of the verification using a mathematical approach are 1.683.433 m3 with a difference of 1.02%.
Selection Model of Use of the Elevated Toll Road Route in Makassar City
Authors: Roni T S , Ramli M I , Adisasmitha S A 
Published: December 2022

Abstract
This study aims to analyze the selection of the A.P. Pettarani Elevated Toll Road route. Data collection was carried out by distributing questionnaires and reviewing respondents to describe the travel characteristics of A.P. Pettarani Elevated Toll Road respondents using Ms. Excel to process the data. The results showed that in the selection of A.P. Pettarani elevated toll road to the airport, and the dominant respondents entered the toll road through the Bakti road where the traveler was aged 50-59 years old, with the last education being a bachelor’s degree, working as an officer, with an income of IDR 4.5M-5.5M. The travel costs incurred are IDR20-30K, travel distance of 7-11 km, travel time of 10-20 minutes, and travel frequency of 15-20 times a month to travel for work/business. In the selection of travel routes using the A.P. Pettarani elevated toll road to the port, the dominant respondents entered the overpass toll road through the Rappocini road, where the traveler was aged 20-29 years old, with the last education being a bachelor’s degree, working as an officer, with an income of IDR 4.5M-5.5M. The travel costs incurred are IDR20-30K, travel distance of 7-11 km, travel time of 20-30 minutes, and travel frequency of 15-20 times to travel for work/business.
Simulating life history trade-offs of clonal plants in drought
Authors: Deng R 
Published: December 2022

Abstract
This study investigates responses of clonal plants and non-clonal plants to drought and their competition results using a spatial simulator based on clonal and nonclonal life history strategies. The clonal and non-clonal plants are designed as two phenotypes of one generic species with facultative clonal growth. Therefore, both phenotypes share the same life histories beside their allocation to aboveground and belowground growth, resulting in differences in leaf biomass, underground storage, and seed reproduction. Clonal plants tend to store biomass underground which would boost survival in the long-term, while non-clonal plants invest towards aboveground growth and thus more seed reproduction in the short-term. It is shown that allocation to storage in clonal plants provide them with an advantage when faced with severe drought since they can resprout from belowground. In comparison, non-clonal plants do better when there is no drought as they allocate more to aboveground growth and seeds. The simulations results have demonstrated how clonal life histories might impact plant population dynamics under drought, which might increase in frequency and extent as anthropogenic climate change continues. It also can be easily parameterized to investigate other species of interest under other environmental conditions.
Ecological wastewater treatment with activated clays and its reuse in asparagus plants
Authors: Cuba Carmen , Arroyo Victor , Cuba Roberto , Morales Jose , Cuba Juan , Euribe Carlos , Arroyo Jhonattan 
Published: December 2022

Abstract
Water treatment, abundant clay in the area, for the elimination of particles and microorganisms in wastewater and disinfection through alcoholic extract of the molle, which has a high concentration of tannins that acts as a germicide, not affecting the asparagus during cold washing, saving thousands of cubic meters of groundwater daily. The study has explanatory level and experimental design. The weekly sample (drinking water, residual water and treated water) taken during 3 months, equivalent to 36 water samples. The flocculant capacity of the activated clays depends on the pH of the wastewater, tests were carried out to determine the pH, the experimental tests indicated that pH‹7 its flocculant capacity is restricted as with pH› 7, for which it is worked with a pH7, that is to say neutral. It is concluded that the flocculant capacity of the activated clays was 82.92%, ensuring water treatment. The adequate concentration of activated clays is 60 mg/L, achieving a maximum flocculation of 82.92%. Activated clays have action on pathogenic microorganisms: Escherichia coli, fecal coliforms and total coliforms, which are eliminated, since they are dragged by the flocs to the bottom of the container, leaving the supernatant water free.
Perception of Environment Sustainability, Lifestyle, Green Purchasing Behavior, and Eco-innovation
Authors: Vuong Quang Hung 
Published: December 2022

Abstract
Many industries are actively engaged in environmental concerns and innovations. Among them, the furniture industry is also experiencing changes locally and globally and in its value chain. This article takes the furniture industry in the Vietnam market as the primary context. Although Vietnam is one of the largest exporters of wooden furniture abroad, as in some countries globally, environmental sustainability in design and production is still limited. In fact, various studies have shown that many consumers are willing to pay high prices for products with environmental protection factors. In addition, sometimes they turn their hobbies into new lifestyles and different trends. Therefore, to penetrate this emerging green product market, environmental factors have been identified as key design elements for sustainability. This study demonstrates the reference between theory and practice to advise on ecological innovation strategy of furniture enterprises, specifically furniture manufacturing enterprises in the Vietnam market. To do this, firms need to understand the core relationship between perception of environmental sustainability, lifestyle, green purchasing behavior, and eco-innovation. From there, they can orient eco-innovation in their organization’s activities and business processes. Therefore, this relationship will be explored in this study.
Investigating the relationship between agricultural water usage and water quality in California
Authors: Jing R 
Published: December 2022

Abstract
California has a highly developed agriculture system, but it faces many challenges associated with water supply and water quality. This research examines the relationship between agricultural water use and water quality at multiple scales, including a comparison of southern and northern California, analysis of seven regions, and four counties within the Central Valley, which accounts for more than 70% of agricultural water use in the state. Statistical analyses of georeferenced data from USGS and CIMIS were used to test the hypothesis that higher agricultural water use is associated with lower water quality. Results indicate that while there is no significant difference in water quality between southern and northern California, there are significant differences among regions. Furthermore, within the Central Valley, there is a significant inverse relationship between agricultural water use and two of three water quality indicators, namely dissolved oxygen and dissolved nitrate. Although further research is necessary to establish causality, these findings suggest that policymakers need to consider the effects of water use on water quality in planning California’s future agricultural development.
Microplastics uptake in wild Asian green mussels sampled from Pasir Putih estuary in Johor, Malaysia
Authors: Zahid A Z M , Kamaruddin S F , Saifullizam N Z , Chik W S W , Rani N H A 
Published: December 2022

Abstract
The high concentrations of plastic and plastic debris in the environment continue to rise each year as most plastics undergo minimal biological degradation. As plastics are exposed to sunlight, the atmosphere, and water, these polymers break into smaller pieces and become individual polymer molecules. In this study, the presence of microplastics (MPs) in mussels was investigated. Wild Asian green mussels (Perna viridis) samples were collected from the Pasir Putih estuary for 3 months and were categorised according to size. The density was separated using NaCl solution, and the removed soft tissues were digested with 10% KOH solution. By using FTIR spectrometry, of the particles identified in all samples collected, the majority were nylon (polyamides) in the form of fibres. The average number of fibres detected in small, medium, and large samples is 1.31, 1.05, and 0.79 items/g, respectively. Despite the widespread MPs in the environment, the actual number of MPs, particularly MP fibres, is unprecedented and expected to be higher. The abundance of MPs detected in mussels not only affects health, fecundity, and ecosystem services provided by bivalves but also presents a route for human exposure.
Fundamental Study on Combustion Characteristics of Bio-briquette as Alternative Fuels for Domestic Coffee Stove
Authors: Khairil  , Arwiyan Irfan , Akhyar  , Sofyan Sarwo Edhy 
Published: December 2022

Abstract
The aim of this study is to perform the effect of coffee waste blended in bio-briquette as an alternative fuel for domestic coffee stove. The sample of bio-briquette were blended with a variation of composition coffee waste, coal and polyvinyl acetate (PVAc) glue as a binder. The sample of bio-briquette was introduced in electric furnace with combustion atmosphere by using of 20% excess air condition. In the experiment, the mass reduction fraction, combustion rate, flame temperature of burning bio-briquettes was elucidated. The results obtained shows there are influenced of mass decreasing with an increasing of coffee waste blends, where the more of composition coffee wastes was added causes the faster of mass decreasing fraction of bio-briquette. The rate of combustion (K) increases with increasing percentage of coffee waste, where the largest K is obtained 6.05 (1 / second) in the composition of 90% coffee waste, while the smallest K of 4.55 (1 / second) is obtained in the composition of 30% coffee waste. The highest flame temperature occurs in the mixture of coffee waste 90% which is equal to 580 ° C and the lowest fire temperature occurs in the mixture of coffee waste 30% that is equal to 410 ° C.