bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of Animal Manure and the N Element Usage on the Growth and Productivity of Lettuce (Lactuca sativa L.)
Authors: Naditania Shasha , Prihatingrum Andriani Eko , Miftakhurrohmat A. , Nurmalasari Intan Rohma 
Published: November 2022

Abstract
Lettuce has a lot of vitamin such as vitamin A, C, D, and B12 that is good for health. Also it needs an extra care to the plant, temperature, watering, and the needs of sunlight. The usage of fertilizers can help the plant to get the maximum productivity especially in flatland. This research aims to find out the efficiency of which fertilizer work the best for lettuce. This research was conducted in May-July 2020 and taken place at Kraton Village, Krian, Sidoarjo with the altitude ±10 masl and continued in agriculture laboratory of Faculty of Science and Technology, Muhammadiyah University. This research aims to find out which one is the best fertilizer for lettuce. The study design used Randomized Block Design (RBD) with 6 treatments and 3 replications. Based on this research, chemical fertilizer and animal's manure used for the growth of lettuce has significant effect on all variables observed, treatment using animal's manure is significally different from using chemical fertilizer except the cow's manure but the optimal productivity is using NPK that is included as chemical fertilizer with the dose of 1.2 grams/polybag is a treatment that gives plant a wet weight of 181.67 grams/plant.
Effect of Corona Incandescent Plasma Shooting on Polyester Fibers for Geotextile Manufacturing
Authors: Maulani Mustamina , Rosyidan Cahaya , Samura Lisa , Satiyawira Bayu , Putra Valentinus Galih Vidya 
Published: November 2022

Abstract
The development of the textile industry in Indonesia continues to show improvement and is even able to compete in the international market, including polyester fiber. Polyester fiber will be more economical if given an additional treatment to increase the added value of polyester fiber. One of the uses of polyester in the earth sector is Non-Woven Geotextile. This non-woven geotextile has relatively small pores but has high permeability. This serves as a good retainer of soil grains. Methods: Plasma technology is one way to increase the added value of polyester fiber. Jute cloth was placed on a copper plate electrode and the cloth surface was modified using incandescent plasma treatment for some time, which are 1 minute, 3 minutes and 5 minutes apart moreover with variations in distance of 4 cm, 5 cm, and 6 cm with a voltage of 3 kV. The surface modified Jute cloth using plasma was tested for absorption using a drip test, which is measuring the absorption time of the cloth before and after plasma treatment. Results: From this experiment it was found that sample D had good adsorption and adhesive properties, which was due to the plasma effect found in the O-H at 3700, which was steep and the effect of the fabric rough surface. Conclusion: It can be proven that the contact angle of sample D has a magnitude of 63.4o, the effect of fabric roughness and grafting greatly changes the wettability and adhesive properties of the fabric.
Performance of SLS Surfactant with Imbibition Methode: Literature Review
Authors: Amri Ulil , Fathaddin M Taufiq , Insani Andon , Akbar Fachrurrozi 
Published: November 2022

Abstract
Surfactant is one of the injection fluids in the EOR process to increase the remaining oil production in the reservoir. One type of surfactant used is a lignosulfonate surfactant based on lignin. This lignin is found in bagasse, which is obtained by hydrolysis and sulfonation processes so that it becomes a lignosulfonate surfactant product, and is known as Sodium Ligno Sulfonate (SLS). The injection of surfactant solutions into reservoirs has developed in recent years. Although field data is still lacking, most of the laboratory research has given birth to new theories. The performance of a surfactant can be influenced by the IFT value. The IFT value depends on the size and wettability characteristics of the reservoir matrix, gravity can play a role and the rock matrix. To determine the recovery factor of an oil, an imbibition test can be carried out using a particular reservoir of crude oil samples. Based on the literature review, surfactant injection in the reservoir can produce different recovery factor values. Based on the imbibition test, the qualitative wettability test (two-phase separation test and flotation test) showed that the injection of surfactin and STEOL CS-330 could produce different RF. Based on the results of the imbibition test with several rock samples that have fairly good porosity and permeability, it produces varying RF values, the highest value is 1 ml and the lowest is 0.05 ml. Good results as in samples number 23D, number 29D, and 32B, were obtained at different concentrations, possibly due to the swelling clay which resulted in the closure of the porosity and permeability of the rock, it could also be due to a less homogeneous solution.
Sequence Stratigraphy of Miocene Mixed Carbonate-Siliciclastic in Fold and Thrust Belt System, Banggai Basin
Authors: Herdiansyah Firman , Burhannudinnur M , Prakoso Suryo , Hp Isranto , Kurnianto Dwi , Irano Teddy , Harnest Billy 
Published: November 2022

Abstract
This study was specifically analyzed in the southern part of the Banggai Basin, precisely in the TKA Field. In the Tertiary, regional stratigraphy reveals, the Banggai Sula microplate comprises carbonate shelf and siliciclastic sequence. Several previous studies had been concluding, the tertiary limestone was deposited during the Early Eocene to Middle Miocene. Carbonate formations which has been known by Tomori and Minahaki Formation. Meanwhile, their siliciclastic dominated is Matindok Formation and Celebes Mollase. These sequences formed a distinct stratigraphic style in the geophysical well log and seismic data. Four cycles are distinguished, the lower part of Tomori Formation at the outer shelf and directly overlying by the upper part of inner shelf Tomori Formation. it was superimposed by siliciclastic sediments that have been deposited in the outer litoral during regressive phase. Whereas during rising sea level or highstand, the litoral system migrated to basinward wherein Minahaki Formation was deposited. Sequence stratigraphy provides a reliable methodology for correlate both carbonate and siliciclastic successions. It was analyzed based on 4 wells, 2D, and 3D seismic data which has been available. Sequence stratigraphy analysis using T-R sequence concept by Embry and Johanessen. Trasngressive and regressive phases were obviously determined by lithofacies, coral colony and foram that were recorded on biostratigraphic analyses. In this study, cyclic sea-level change will be recognized as system tract record of mixed carbonate-siliciclastic sequence.
Species composition and vegetation structure of mangrove forest in Baskara Bakti Village, Central Bangka Regency, Bangka Belitung
Authors: Henri  , Syafa’ati R , Randiansyah  
Published: November 2022

AbstractMangrove ecosystem has a strategic function as a buffer for coastal areas, marine conservation, mitigates climate change and global warming. Bangka Belitung is an archipelagic province with many coastal areas, including mangrove ecosystems. This study aims to determine the quality of the mangrove ecosystem by analyzing the structure, composition, and health index of mangroves in the mangrove forest ecosystem in Baskara Bakti Village, Central Bangka Regency. Data were collected through observations at several sampling points used to analyze species composition, vegetation community structure, and environmental physicochemical conditions using stratified random sampling with an observation plot size of 10 m x 10 m and canopy cover determination using the hemispherical photography method. The study results show that the composition of mangrove vegetation in the study area consisted of 5 true mangrove species and 6 associated mangrove species.Rhizophora apiculatais the species with the highest Important Value Index of 91.87%. The mangrove community showed a good health condition with an average value of 50.41%. Environmental parameters that directly influence the mangrove forest ecosystem include temperature, water pH, dissolved oxygen (DO), and salinity. Planting and enrichment of mangrove species need to conserve sustainable mangrove ecosystems.
Effect of micronutrient addition and development on microbial fuel cells (MFC) from food waste with the help of hydrolytic fungi
Authors: Laily F N , Juliastuti S R 
Published: November 2022

Abstract
Based on data from the Indonesia State Electricity Company (PLN) in 2021, the electricity capacity distributed throughout Indonesia is still not fulfilled and going to be overcome with renewable energy This research aimed to know the effect of micronutrient addition on the management of a food waste on microbial fuel cells for bioelectricity production. Positive effects of addition of micronutrients on various substrates have been reported, such as addition of Mg2+, Ni2+, Cu2+, Ca2+, Pb2+, Co2+, Cd2+, Cr2+, and Zn2+. First, food waste will be hydrolysed by hydrolityc fungi, then mixed with Shewanella oneidensis MR-1 bacteria, Sidoarjo mud, and 1 µg/L micronutrient. After micronutrient added, observations were made on the power density in 20 days. The best power density production was 6,175,438.596 mW/m2 which achieved by Cobalt addition. The total power density generated with the addition of Cobalt metal ions as a micronutrient was able to reach 29,099,689 mW/m2 or 29,099.69 kW/m2, which could achieve the target electricity power 2,949.58 MW by using a substrate of about 51 tons of food waste with the addition of micronutrient cobalt of about 0.05 gram/L. Thus, MFC can solve electricity problems in Indonesia.
Floating power plant applications for electric battery using thermoelectric generators (TEG) on solar panels
Authors: Zein E , Safril M , Sutanto E , Hamid M I , Aziz M , Fahmi F 
Published: November 2022

Abstract
The use of solar energy as a source of electrical power is done by utilizing solar panels. Even though the sun has two sources of energy: light energy and heat energy, however, up to now, the heat energy generated by the sun is not yet fully utilized. This study was aimed to develop floating -on water- power plant where the temperature difference that occurs in thermoelectric generator can increase the optimal output voltage on solar panels. The thermoelectric hot side is patched under the solar panel, and the cold side is patched on the surface of the water level. This study showed that the highest voltage results on the connected series are 3±1 volts with thermoelectric generator connected 60 series. The power generated by the thermoelectric generator is 3-7mW with a temperature difference of 14.5°C. Thermoelectric efficiency of the floating generators was 84.4%. The electrical power generated by the thermoelectric generator was stored in a 3V 2000 mAh electric battery. This energy is sufficient to light up the lamps and to charge the mobile phone for daily use.
The effect of adding photocatalyst ceramics on reducing particulate matter in indoor air purification systems
Authors: Kristyawan I P A , Indra A , Suradharmika I G A , Setiaji G , Putri N C , Oka I W 
Published: November 2022

Abstract
Indoor air quality can be maintained by using an air purifier. Increasing the absorption of particulates (PM) in the air purifier can be done by adding photocatalyst ceramics. This study aims to determine the impact of adding photocatalyst ceramics to an air purifier. A simple reactor resembling an air purifier was made, to which a photocatalyst ceramic was added. The PM remaining in the output air is then analyzed based on the rate of photocatalytic degradation. The results showed that the use of photocatalyst ceramics can accelerate the absorption of PM compared to without using it.
Prospects and challenges of ripple spreading algorithm for waste collection path optimization problem in Indonesia
Authors: Miftahadi M F , Ramadan B S , Rachman I , Matsumoto T , Ma Y , Utomo T H A 
Published: November 2022

Abstract
Nowadays, countering the complexity of waste collection path optimization problems (POP) are reliably solved through evolutionary computation (EC). However, a sustainable collection strategy requires a specific rule and outcome for a given route network. Most waste managers are concerned with expenditure, work hours, and ecological footprints, combined with model flexibility to mimic real-life execution for the specific study case. Contemporary stochastic and deterministic POP methods are every so often confronted with optimality and scalability. Beyond its predecessor, namely the A* and the Dijkstra algorithm, a fundamental nature-based deterministic algorithm called a Ripple-Spreading Algorithm (RSA) had performed a straightforward heuristic evaluation. This study investigates prospects and future challenges in developing the RSA simulation based on Indonesia’s waste management scope. Specific overseas theme literature was employed to explore the possible research setting.
Delignification of empty fruit bunch using deep eutectic solvent for biobased-chemical production
Authors: Muryanto M , Amelia F , Izzah M N , Maryana R , Triwahyuni E , Bardant T B , Filailla E. , Sudiyani Y , Gozan M 
Published: November 2022

Abstract
Lignocellulose biomass was a potential feedstock for biobased chemicals substituting
fossil-based chemicals. Oil Palm Empty Fruit Bunch (EFB) is the largest lignocellulose biomass from oil palm waste. Lignocellulose contains cellulose, hemicellulose and lignin. Pretreatment is one of the steps in the bioconversion of lignocellulose material. Pretreatment aims to reduce lignin in lignocellulose because lignin can inhibit biomass conversion. The objection of this research is to conduct pretreatment by deep eutectic solvent (DES). DES is the green solvent widely used for biomass conversion. The pretreatment process was conducted at various temperatures and processing times. The delignification of EFB by using DES in 100°C, 120°C, and 150°C pretreatment temperature was 30.67%, 40.60%, and 44.05% respectively. This pretreated-EFB can be used further for biobased chemicals such as glucose, ethanol, or furfural.
Synthesis of nanosilver with simpur leaf (Dillenia indica) modified PVA as antibacterial
Authors: Rado  , Fabiani V A , Mahardika R G 
Published: November 2022

Abstract
Synthesis of silver nanoparticles using a bioreductant of simpur leaf extract to minimize the use of inorganic materials that are harmful and not environmentally friendly. Silver nanoparticles with the bioreduction method, the bioreductant solution was mixed with AgNO3 precursor and the addition of PVA concentrations was 0%, 0.75%, 1.5% and 3%. The purpose of this study was to determine the effect of PVA on the characteristics of silver nanoparticles on antibacterial activity. Analysis of functional groups in simpur leaf extract and Ag/PVA 0.75% using FTIR Spectrophotometer showed wave numbers 3443 cm-1 and 3441 cm-1 the presence of -OH groups and at wave numbers 1640 cm-1 and 1638 cm-1 the presence of C=O groups. UV-Vis analysis showed the optimum wavelength in the 3% PVA variation absorption region showed an absorbance value of 429 nm with an average size of 8.19 nm silver nanoparticles. Inhibition of silver nanoparticles against bacterial growth Escherichia coli and Staphylococcus aureus the highest concentration was at 100% with an inhibition zone diameter of 10.33 mm and 11.58 mm in the strong category.
Readiness study of environmentally friendly motor vehicle tire industry and its supporting infrastructure in implementing tire labeling regulation
Authors: Rustianto B , Yanuar A I , Herdioso R , Rochmadi T , Siswanto  
Published: November 2022

Abstract
Tire labeling is a label on tire products that have met specific rolling resistance, wet grip, and noise emission requirements. It aims to increase road transport’s safety and economic and environmental efficiency by promoting fuel-efficient and safe tires with low external rolling noise. Indonesia has many tire industries and is a significant global market for motor vehicles; they may consider applying tire labeling. The implementation of tire labeling in Indonesia requires a study of the readiness of the tire industry and its supporting infrastructure, including the necessary testing facilities and end-user awareness. The study was carried out by conducting literature studies and distributing questionnaires. The study results showed that the tire industry has sound capabilities, but it is necessary to increase the readiness of an independent testing laboratory. End-user acceptance of tire label products is good, but awareness of tire labels needs to be improved. The application of tire labels in Indonesia is projected to reduce CO2 emissions significantly.
Bioethanol production process with SHF method from EFBs pulp and its microcrystalline
Authors: Maryana R , Bardant T B , Santi E L , Triwahyuni E , Muryanto  , Oktaviani  , Dahnum D 
Published: November 2022

Abstract
Bioethanol is an alternative energy to reduce fossil fuels dependency as well as for industrial utilization. This study aims to investigate the effectiveness of bioethanol production from oil palm empty fruit bunch (OPEFB) in the pulp compare to its microcrystalline OPEFB by applying Separate Hydrolysis and Fermentation (SHF) method. The process was carried out by pretreatment using alkaline for both materials and then subjective to the bleaching process by applying H2O2 10% for microcrystalline OPEFB. Subsequently both pulp and its microcrystalline were subjected to enzymatic hydrolysis by cellulase 30 FPU/g to break lignocellulose chains into simple sugars. The final stage was fermentation process to convert glucose into ethanol by using Saccharomyces cerevisiae. Analysis of sugar, cellulose, and lignin content was performed by using the NREL method, and for ethanol content using a densitometer. This study revealed that the sugar conversion after hydrolysis by enzymes was 79.77% for microcrystalline and 66.76% for pulp. Meanwhile, the ethanol content in the microcrystalline was higher than the ethanol in the pulp that was 4.87% in the medium of 0.1% NPK and 0.3% urea.
Study of washing method of oil palm empty fruit bunch-treated with alkali explosion in lignocellulosic bioethanol production
Authors: Triwahyuni E , Alfianti A R , Bardant T B , Irawan Y , Muryanto  , Maryana R 
Published: November 2022

Abstract
The conventional process of lignocellulosic bioethanol production includes four steps: pretreatment, hydrolysis, fermentation, and purification. Pretreatment is the crucial way to enhance cellulose purity and remove lignin as well as other impurities compounds in biomass. Alkaline explosion is one of the most used pretreatment methods but pulp-produced is still in base condition. This pulp is not suitable as a substrate for enzymatic hydrolysis that needed a pH of 4.5-5.5. Therefore, pulp washing is required for separating pulp with black liquor and obtaining neutral pH pulp before going to hydrolysis. This study explored the washing method of oil palm empty fruit bunch (EFB)-treated with alkaline explosion in bioethanol production. The washing method using freshwater, acid solution, and a combination of freshwater and acid solution was investigated. As a result, the washing used freshwater needed the highest of water and wash cycles. The washing method using acid solution could obtain neutral pulp in two cycles wash step or more, thus, requiring higher acid consumption. The washing with combination method provided neutral pulp with fewer wash cycles, water, and acid. This method also provided the highest glucose and ethanol concentration. Therefore, the combination washing method is considered more efficient, economical, and environmentally for EFB pulp washing in bioethanol production.
Economic value of carbon sequestration in conservation forests for geothermal power plant development areas
Authors: Ladiba A F , Srikandi G P , Sihombing A L , Rasyid H A , Susila I M A D , Irsyad M I A 
Published: November 2022

Abstract
The government commits to reduce emissions in the energy sector by using new and renewable energy by targeting the development of geothermal power plants (GPP) of 7,241.5 MW in 2025. Approximately 58% of geothermal potential is in forest areas with a carbon absorption function. This study will calculate the potential loss of carbon stock and the economic valuation of the carbon sequestration function in forest areas. The location of study is Mount Ciremai National Park (MCNP). The study was conducted on 4022.37 hectares which will be used as the location of the initial study and geothermal exploration area. The potential area of GPP location is divided into: avoid area, minimize area, restore area, and utilization area, considering the land slope level and zoning. The potential carbon stock lost due to the entry of the GPP project in MCNP is 168,311.99 tons of CO2, or 17.95% of the total potential carbon stock in the study area. The economic valuation of carbon stocks using the economic value of carbon is Rp. 5,049,359,810.00. This value is the cost of externalities as compensation for carbon loss from land conversion activity. It should include as input to the economic analysis of geothermal project development.
Defense study on Indonesian nickel processing
Authors: Yoesgiantoro D , Sasongko N A , Nurbaiti  , Arifianto B S 
Published: November 2022

Abstract
This paper examines nickel processing in Southeast Sulawesi and Central Sulawesi with a defense approach. This paper uses qualitative research with supported by literature review. Indonesia’s nickel processing in Southeast Sulawesi and Central Sulawesi is dominated by China and benefits China to support China’s industrialization. The processing projects include One Belt One Road by prioritizing China’s national interests over Indonesia’s national interests. This study is one of the few academic research papers on nickel processing related to defense studies.
Utilization of palm oil based biofuel to support sustainable energy transition in Indonesia
Authors: Kurniawati A S , Pratiwi A I , Ariyani N R , Septiani M , Sasongko N A 
Published: November 2022

Abstract
Palm oil is a component that can be a mainstay to support the need for sustainable energy transition. In order to implement and achieve sustainable development, palm oil-based biofuel is being developed. In addition, the government has begun to develop a mandatory biodiesel program, so that an adequate supply of biofuel from palm oil is required. This research refers to the utilization of crude palm oil to produce biofuel supplies as a way of implementing and achieving sustainable development. This paper is based on bibliographical research and document studies. Palm oil can bring considerable opportunities for the benefit of the people and achieve government goals. However, this must be accompanied by good management, especially palm oil as a commodity that has a fairly complex upstream-downstream flow, followed by quite heavy problems and obstacles. The mandatory implementation of biodiesel is still constrained by various technical problems, namely infrastructure, quality, logistics, demand, and incentives. Implementation of biodiesel mandatory program policy also has an impact on the economic and environmental side. Biodiesel production can grow consistently with strategic policies across stakeholders.