bluuebunny/crossref_metadata_2025_split huggingface dataset:
Socio-Economic Assessment on Flood Risk Impact: A Methodological Review Toward Environmental Sustainability
Authors: Samsuddin A , Kaman Z K , Mat Husin N 
Published: January 2022

Abstract
The disastrous events of land flooding prompt an urgency to flood risk management to counterpart this issue with the concept of flood damage divided into four types: direct, indirect, tangible, and intangible. This paper reviewed previous articles regarding flood risk management with a specific focus on methods used for socio-economic impact assessment towards ensuring a sustainable environment. The methodological approach can be sorted into four (4) main types group which are i) historical disaster statistic method, ii) index system method, iii) scenario simulation analysis, and iv) GIS-based approach. Among others, the integrated GIS-based approach becomes the most practical method in conducting socio-economic assessment for flood risk impact. As most of the socio-economic impact-based studies are conducted in western countries, this paper proposed the idea that for different types of countries such as the Asian countries, differences in topography, weather and seasons will lead to a different scale or possibly different types of socio-economic impact, which may require a new approach of assessing the impact. It is also proposed that any socioeconomic and environmental impact assessment needs to explicitly consider both direct and indirect impact. This is to ensure the approach used is holistic, valid, reliable, and more accurately reflect the real nature of the respective flood risk while the gap of the studies also can be identified.
Role of Eco-Friendly Bio-Based Graphene-Oil Nanofluids on Friction Reduction for Wind Turbine Application
Authors: Ng K P , Liew K W , Lim E 
Published: January 2022

Abstract
Sustainable energy such as wind turbine is known as a green technology that minimize the carbon emission into environment. However, unwanted friction and wear in journal bearing of a wind turbine’s gearbox leads to reduction of power efficiency and increase the reliance onto fossil-fuel powered electricity. Lubricating oils are used in journal bearing to provide the hydrodynamic lubrication film. However, commercially available lubricants are petroleum-based, which are non-replenishable and toxic. Thus, the bio-degradable vegetable oil, high oleic palm oil-based methyl ester (high oleic POME) was used as a base oil synthesized with graphene nanoplatelets (GNP), multi-walled carbon nanotubes (MWCNT) and nanostructured graphite (NSG), respectively, to enhance the friction and wear reduction. The tribological performance of each type of bio-based graphene-oil nanofluid was studied using pin-on-ring tribo-tester. It is concluded that NSG in high oleic POME shows 52.03% friction coefficient reduction and 59.27% pin specimen weight loss reduction. With this significant friction and wear reduction, power efficiency of wind turbine will be improved significantly. Thus, the reliance of society depending on fossil-fuel powered electricity can be reduced and minimize the carbon emission into the environment.
The Effect Mechanisms of Intake Manifold Water Injection on the Emissions of a Natural Gas Engine
Authors: Qin Qichao , Chen Youpeng , Qin Zhuogeng , Tu Chaoqun 
Published: January 2022

Abstract
NOx is the main emission of lean burn natural gas engine (NGE). Water injection (WI) is an effective method to reduce NOx, which has been widely studied in conventional fuel engine. Currently, there are few researches on the application of WI in NGE. The influences of WI on NGE are not clear. In the paper, the effect mechanisms of WI on the emissions of NGE are studied. Based on the thermodynamic properties of water and the combustion mechanism of natural gas, the emissions generation mechanism of NGE with WI was analyzed. According to the experimental system, the effects of intake manifold water injection (IMWI) on the emissions of a lean burn NGE was carried out. The results show that, with WI, the in-cylinder temperature decreased greatly, which effectively inhibited the formation of thermal NO. Water generated a lot of OH groups, which effectively inhibited the formation of rapid NO. At 1800 rpm and 0.92g/s WI rate, NOx is reduced by 70.4%. OH group could effectively promote CO oxidize to CO2. At 1000 rpm and 0.92g/s WI rate, CO is decreased by 22.2%. However, since the decrease of the total activation energy of combustion reaction, the chain breaking reaction increased, resulting in a significant increase in HC. At 800rpm and 0.92g/s WI rate, HC was increased by 11.6%.
Anaerobic Co-digestion of Press mud and Molasses-based Distillery Wastewater for Enhanced Biogas Production
Authors: Evidente R C , Almendrala M C , Caparanga A R , Pamintuan K R , Mendoza J A 
Published: January 2022

Abstract
With goals in determining the effect of diluting the distillery wastewater (DWW) and of varying the amount of DWW and press mud (PM), anaerobic co-digestion study was carried out at mesophilic condition in a 2-L Erlenmeyer flask, with a working volume of 800 mL for Batch 1 and 1500 mL for Batch 2 experiments. For Batch 1, two different ratios of DWW and tap water, with 2:3 and 3:2, were used to assess the effect of dilution on the methane yield, where same volumetric amount of PM was added. For Batch 2, following ratio of PM and DWW were used: a) 1:0, b) 1:1, c) 1:1, d) 2:1, and e) 1:2. All samples had the same amount of inoculum, except that Batch 1 samples had bagasse. The parameters that were assessed after 42 days of digestion were: pH, COD, BOD, TSS, VS, Cu, Ca, Mg, Mn, TOC, TN, and methane yield. For the effect of dilution, a significant difference in the methane yield between samples with higher and lower dilution ratio was seen, and in the first batch, the optimal dilution ratio of DWW and H2O, with 3:2 gave higher methane yield of 78.23% (v/v). Meanwhile, optimal volumetric ratio of DWW and PM from the Batch 2 experiments, with value of 1:2, gave the highest methane yield of 79.43% (v/v).
Enhancement of Microhardness and Tribological Properties of Recycled AA 6063 Using Energy-Efficient and Environment-Friendly Friction Stir Processing
Authors: Teo G S , Liew K W , Kok C K 
Published: January 2022

AbstractIn this study, the surface microhardness, friction and wear performance of recycled aluminium alloy 6063 were improved via an energy-efficient surface engineering technique known as friction stir processing. Different tool rotational speeds of 1200 rpm, 1400 rpm, 1600 rpm, 1800 rpm and 2000 rpm with a fixed feed rate of 30 mm/min were used to process the recycled aluminium alloy 6063. The effects of rotational speed on the microstructure, surface microhardness and tribological performance of the samples were analyzed. The results show that the samples produced at a stirring speed of 1200 rpm achieved the greatest enhancement of 25 % in surface microhardness, 37 % in wear resistance and 33 % reduction in friction coefficient. This has significant implications for environmental sustainability as a relatively low rotational speed, hence a low energy input, is sufficient to enhance the surface properties of recycled aluminium alloy 6063. The benefits of superior tribological properties of recycled aluminium alloy afforded by such an energy-efficient surface engineering method include reduced exploitation of new resources, reduced carbon footprint, and enhanced product sustainability and durability.
Estimationof Biomass and Carbon Sequestration by Non-Destructive Method in Dry Deciduous Forest of Shivpuri, Madhya Pradesh, India
Authors: Bung S , Rajmohan S , Bhutia S , Pandey H , Mitra M 
Published: January 2022

Abstract
The study aims to assess the plant biomass and carbon storage potential of the forests of Shivpuri, Madhya Pradesh, India. The study was carried out in Satanwada Range in Shivpuri Forest Division. A total of 96 quadrats of 10×10 m2 were laid. The non-destructive algometric method was used to estimate carbon sequestration. The results show that Acacia catechu (202 individuals/ha) dominated the forest, followed by Anogeissus pendula (90 individuals/ha). The total biomass of the forest was estimated to be 34.72±0.41t/ha, with Boswellia serrata (7.943t) recording the highest. The minimum biomass was recorded for Grewia sp (0.06t). The highest carbon content was found in B. serrata (3.97t; 25 individuals) followed by A. Catechu (2.92t; 195 individuals). Although A. catechu was dominant in the area, due to its lower girth class and young age, the net carbon storage was less than that of B. serrata. It was found that plots with higher carbon stock had higher species richness than plots composed of single species. Therefore, plantations of mixed native species should be preferred for future restoration activities as they are more efficient in sequestrating carbon than monoculture plantations.
Management Community of Communal Lands in the Andean Rural Community of San Roque de Huarmitá, Concepción, Junín, Peru
Authors: Bruno E , Ferrer J 
Published: January 2022

Abstract
In this research, the influence of community management of the rural Andean community of San Roque de Huarmitá on the condition of communal lands was analyzed: usufructuated lands (family management) and communal farm (collective management), through an evaluation of the institutional level (design principles) as an indicator of community self-management capacity and analysis of physical-chemical characteristics of soils. Research methods such as: ethnoknowledge and similarity analysis were also used. The results showed that the design principles were well implemented in relation to land use and that the physical-chemical properties differ significantly between the two types of communal lands, showing better fertility results in the usufruct lands. It was concluded that the Andean rural community has a robust level of self-management, that is, it has sustainable community management. Since the usufruct lands provide direct benefits to the families (good soil fertility and pasture production), while the communal farmlands, having extensive management, do not generate direct benefits. In other words, there is a prioritization for the care of the family resources before the community resources.
The Implementation of Indonesian Sustainable Palm Oil (ISPO) Policy in Managing Oil Palm Plantation in Indonesia
Authors: Umayah Difa , Purnomo Eko Priyo , Fadhlurrohman Mochammad Iqbal , Fathani Aqil Teguh , Salsabila Lubna 
Published: January 2022

Abstract
The purpose of this research is to look at the governance of sustainable oil palm plantation development in Jambi Province through an analysis of the role of the Jambi Provincial Government’s policies in realizing sustainable oil palm plantation management. The study used a qualitative approach to explain current findings on the sustainable development of oil palm plantations in Jambi province. The data in this study used an analysis of Jambi Province policy documents related to the oil palm plantation sector’s growth and development. This study’s results indicate the Jambi Province local government’s commitment to realizing environmentally friendly oil palm plantations. These results can be seen from the legal, licensing, and limitation aspects by applying the 7 ISPO principles, namely the application of oil palm development permits, application of technical guidelines for oil palm cultivation and management, environmental management and monitoring of oil palm plantations, responsibility for oil palm plantation workers palm oil, responsibility for the social community of oil palm plantations, empowerment of community economic activities and increase the sustainable business of palm oil plantations.
Comparative Study of Factors Affecting Dependency of Households on Dry Deciduous Forest in Shivpuri, Madhya Pradesh (India)
Authors: Pandey H , Rajmohan S , Bung S , Bhutia S Y 
Published: January 2022

Abstract
The rural and tribal communities of Madhya Pradesh’s Shivpuri District depend on forest resources for meeting their domestic energy needs, forest products, and employment. Under Green India Mission, households were randomly selected and surveyed. The data of 61 households from 3 villages of Satanwada range (dry deciduous forest) and 131 households from 4 villages in Pichhore range (dry deciduous scrub forest) was collected through semi-structured questionnaire interviews and direct observation. Generalised Linear Model was used to determine the major factors affecting fuelwood collection. The study revealed the factors affecting the amount of fuelwood collection in Satanwada and Pichhore. Family size of households near to the forest negatively affected the amount of fuelwood collected; opportunity cost of fuelwood collection was lower for them than for families living further away from the forest in Satanwada. In Pichhore, LPG consumption reduced the amount of fuelwood collected, while cow dung complimented the quantity of fuelwood collected. Since the availability of fuelwood was scarce, alternate energy resources became determining factors of the amount of fuelwood collected. In both ranges, the distance of the forest from households had a positive effect on the quantity of fuelwood consumed due to higher opportunity cost and degradation of adjacent forests. The study also revealed a strong correlation between the sampled population percentage of women in villages and the sampled village cattle count. The study also showed the difference of fuelwood collection in Satanwada (8.8 ± 0.6 kg) and Pichhore (6.8 ± 0.4 kg) suggesting that forest degradation correlates with lesser utilisation of forest resources. Hence, the study justifies the need of synergy between public rural provisions of alternative fuel sources with afforestation programs.
Trombe Walls – Characteristic, Overview and Simple Case Study for Different Climate Conditions
Authors: Oltarzewska A , Krawczyk D A 
Published: January 2022

Abstract
Currently, when we spend a significant part of the day indoors, paying attention to indoor air quality and thermal comfort rise to prominence. Sometimes, improving these issues could be really simple and possible by using passive solar systems like Trombe walls. Because the implementation of solar walls is still problematic due to numerous barriers connecting with a system management or effectiveness in summer or winter period, many of researchers try to find the solutions, which could optimize them. This paper characterizes the main issues of Trombe walls, presents the current state of research on solar walls and provides a simple simulation of a building with a Trombe wall performed in TRNSYS software, for 3 variants of the system and 4 locations with different climatic conditions. It was estimated that system with Trombe wall and control strategies allows the building to maintain thermal comfort for more than 20% of the year, but effectiveness of Trombe walls depends largely on the climatic conditions and they should be considered only as an auxiliary support for HVAC systems.
Chief Financial Officers and Corporate Sustainability: A Literature Review and Research Agenda
Authors: Alrazi B , Mat Husin N , Mohd Ali I , Nik Azman NAN , Mohd Nor MN 
Published: January 2022

Abstract
Societal and environmental risks dominated the top 10 risks in both likelihood and impact, according to the surveys conducted by the World Economic Forum. Against this background, there have been many cases demonstrating the disastrous financial impact of organisational failure to address societal and environmental risks. As a person whose responsibility is to assess financial risks of the organisation, there is increasing expectation for the Chief Financial Officer (CFO) to lead sustainability strategy and initiatives. This research serves to review the literature which highlights the roles and characteristics of CFOs essential for corporate sustainability. Drawing upon this and related literature examining the influence of CFOs on other accounting practices, it proposes a framework illustrating the potential relationships between CFO characteristics and corporate sustainability.
Determination of Alternative Design of Hornbill Estuary Embankment in Semarang City with Process Hierarchy Analysis Method
Authors: Purbangsa Y , Wahyudi S I , Rochim A 
Published: January 2022

Abstract
Rob’s condition in Semarang is exacerbated by the decrease in the soil level which has a part in the expansion of rob puddles. Therefore, this research is needed to determine the alternative design of the Tenggang River estuary embankment. Researchers collect data with interviews and surveys, then made analysis with Analytical Hierarchy Process (AHP) method which is one of the decision making models in the selection of Embankment Design, the levee design consists of three selected design alternatives. This research focused on decision making based on perceptions of Professionals, Experts, Academics and community leaders.. Where the design of the Embankment consists of 3 alternative designs with priority factors based on analysis and equations of the criteria in the selection of the design, namely, topographic factors (0.133), geology (0.312), hydrology (0.125), Society (0.186), cost (0.113) and benefit (0.131).
Effect of sodium hydroxide concentration on the compressive strength of geopolymer mortar using fly ash PLTU Tanjungjati B Jepara
Authors: Kustirini A , Antonius  , Setiyawan P 
Published: January 2022

Abstract
Geopolymer concrete is concrete that uses environmentally friendly materials, using fly ash from waste materials from the coal industry as a substitute for cement. To produce geopolymer concrete, an alkaline activator is required, with a mixture of Sodium Hydroxide and Sodium Silicate. This research is an experimental study to determine the effect of variations in the concentration of sodium hydroxide (NaOH) 8 Mol, 10 Mol, 12 Mol, and 14 Mol on the compressive strength of geopolymer concrete. Mortar Geopolymer uses a mixture of 1: 3 for the ratio of fly ash and sand, 2.5: 0.45 for the ratio of sodium silicate and sodium hydroxide as an alkaline solution. The specimens used a cube mold having dimension 5 cm x 5 cm x 5 cm, then tested at 7 days and 28 days. The test resulted that concentration of NaOH 12 Mol obtained the maximum compressive strength of geopolymer concrete, that is 38.54 MPa. At concentrations of 12 Mol NaOH and exceeding 12M, the compressive strength of geopolymer concrete decreased.
Analysis of Ciliwung river flood debit and city flood anticipation using floods early detection system (FEDS)
Authors: Biantoro A W , Wahyudi S I , Niam M F , Mahardika A G 
Published: January 2022

Abstract
This research is based on flood conditions that often occur in lowland areas such as Jakarta and Semarang. The problem faced is that the notification and early detection of floods is often late, done manually so that it cannot be anticipated by areas downstream of the river. Therefore, it is very important to be able to develop an IoT-based early warning tool so that floods can be detected early in a fast, real time, and immediately anticipated in the upstream area of the river. This research method uses design methods and experiments carried out in the field and laboratory. This research will present a prototype of the FEDS (Floods Early Detection System), based on the Blynk application. The results showed that the calculation of planned flood discharge with a return period of 2, 5, 10, 25 and 50 years can provide an overview of the ability of an area to face the maximum possible rainfall. The FEDS prototype tool, with the Blynk application, can work well using a microcontroller, ultra sonic sensor, and a rainfall sensor. This system is suitable for use in the community to determine rain conditions and water level conditions used at river water level conditions, for early notification of floods.
Fluid Behaviour Analysis on Liquefaction Using Korinofaction Device
Authors: Sentani A , Soedarsono  , Soeridjal E K 
Published: January 2022

AbstractEarthquakes can be followed by liquefaction, which is a response of saturated soil when it is subjected to shock or stress that cause loss of soil strength or bearing capacity as an impact of the increasing of soil pore water and the loss of the soil stress’s effectiveness. This research using Korinofaction that work to cause cyclic loads or vibrations that come from DC servo motor with an adjustable speed and force. The earthquake’s strength is measured by the number of rpm measured on the digital tachometer. Korinofaction is equipped with plumbing system to observe fluid behaviour during liquefaction. The results of research showed that silty sand and silt was liquefied in VIII Modified Mercalli Intensity earthquake and cause the occurrence of water flow on the surface due to increase soil pore stress. The flow rate that triggers liquefaction in the silty sand is 6,769 × 10-5m3/second’ and silt is 5,0 × 10-5m3/second. The water flow that flows in the silty sand had permeability of 4,76 × 10-4Cm/secondwhile on the silt is 6,09 × 10-4Cm/second. After liquefaction, gradient hydraulic of silty sand is 4,76 mm and silt is 6,09 mm. Based on this research liquefaction caused mobilized debris flow and muddy debris flow.
Study of Flood Impact Handling in Pekalongan District
Authors: Salim M A , Siswanto A B , Mindiastiwi T 
Published: January 2022

Abstract
The flood disaster that occurred in Pekalongan district in February 2021 was caused by the high intensity of rain for one week with rainfall >50 mm/day and the ebb and flow of sea water due to tides reaching 0.9-1.1 meters. Other problems due to flooding in Pekalongan district are change in land use, land subsidence, waste, erosion-sedimentation, as well as operation and maintenance factors. Losses due to floods cause material and building losses and traffic conditions are paralyzed. The method used in this research is primary and secondary data collection, descriptive qualitative data processing by describing understanding, research approach with field observations. Flood handling that has been carried out is by adding an emergency sliding door to the drainage, procuring a mobile water pump with a capacity of 250 liters/second, a CCSP (Corrugated Concrete Sheet Pile) embankment, rehabilitation of the Bremi River floodgate, construction of a Mrican pump house with a capacity of 8×2 m3/second, and construction of a 2,200 meter long Silempeng earthen embankment. The emergency handling that was carried out during the floods of February 2021 was the opening of the Long Storage Silempeng-Sengkarang and the preparation of sandbags and large sacks for emergency handling.
Visual quality of Banjir Kanal Timur riverbank as a public open space in the city (Case study: Banjir Kanal Timur Jakarta)
Authors: Wardiningsih S , Wahyudi S I , Adi H P 
Published: January 2022

AbstractThe availability of public open spaces in urban areas is very urgent at this time, especially considering the need for public open spaces that can be used by urban communities, both as social areas and sports recreation. The existing condition along the canal edge requires improving the visual quality so that it can be used as a public open space. The purpose of this study is to evaluate the riverbank, as well as increasing the visual appeal to form public open spaces without reducing the ecological quality of the land and waters of the canal. The analysis method usesscenic beauty estimation, semantic, differentialto assess the visual quality at 10 capture points of the coastal riverbank landscape and those with a value less than - 20 have a low or poor visual quality value. In general, the riverbank has a moderate visual quality value because it has not been used properly. The final result of this research activity is as a reference for improving the visual quality ofBanjir Kanal Timur, thus creating a Public Open Space according to standart, safe, comfortable regulation for social interaction, sports recreation, education and concern for the ecological and hydrological aspects of the city.