bluuebunny/crossref_metadata_2025_split huggingface dataset:
Survival in two-species reaction-diffusion system with Lévy flights: renormalization group treatment and numerical simulations
Authors: Shapoval Dmytro , Blavatska Viktoria , Dudka Maxym 
Published: October 2022

Abstract
We analyze the two-species reaction-diffusion system including trapping reaction

A
+
B
→
A

as well as coagulation/annihilation reactions

A
+
A
→
(
A
,
0
)

where particles of both species are performing Lévy flights with control parameter

0
<
σ
<
2

, known to lead to superdiffusive behavior. The density as well as the correlation function for target particles B in such systems are known to scale with nontrivial universal exponents at space dimension

d
⩽

d
c

. Applying the renormalization group formalism we calculate these exponents in a case of superdiffusion below the critical dimension

d
c

=
σ

. The numerical simulations in one-dimensional case are performed as well. The quantitative estimates for the decay exponent of the density of survived particles B are in a good agreement with our analytical results. In particular, it is found that the surviving probability of the target particles in superdiffusive regime is higher than that in a system with ordinary diffusion.
Assessment role local community perception and participation in reducing risk of lahar flood
Authors: Irawan Listyo Yudha 
Published: October 2022

Abstract
Type Lahar is a hazard post volcanic eruption. After 2014 Kelud Volcano eruption lahar flood a serious threat to the Pandansari village, Ngantang Sub District, Malang Regency. Lahar floods have resulted impact to losses in the form of damage and loss of property in the community as well as public facilities. The aim of research to assess perception and public participation in risk reduction lahar flood. Research conducted with quantitative and qualitative methods are equipped with P-GIS. Quantitative method to determine the population’s response to the lahar flood. Qualitative methods to obtain in-depth information on the key informant. P-GIS is done to validate the spatial distribution of lahar flood has affected on the locations, types of damage and loss experienced by the population. Results of cross tabulation of statistical tests show that public perception is influenced by gender, education level, and occupation. The variable level of education and type of work also affect the level of community participation. Community participation is realized in the form of creating alternative pathways evacuation.
Mapping Susceptibility of Forest in Taman Raya Raden Soerjo Using Machine Learning Random Forest
Authors: Alfarizi Imam Abdul Gani , Wiwoho Bagus Setiabudi , Sucahyo Hetty Rahmawati , Astuti Ike Sari 
Published: October 2022

Abstract
The increasing incidence of forest fires in Raden Soerjo’s Grand Park over the last 5 years has become a concern for conducting research on fire predictions. The availability of free remote sensing data makes it easier to analyze forest fires using Geographic Information Systems (GIS). and remote sensing. Varying publicly available spatial datasets were used to classify forest fires affected areas with an approach of Machine Learning (ML) using Random Forest (RF). Nine (9) variables suspected as potential cause of forest fires (NDVI. ET. LST. Aspect. Slope. Altitude. Distance to Road (ED_Road). Distance to Built-up area (ED_BUA). and Distance to river (ED_River) were used as determinants. About 80% of the data were used as Trained data and 20% as a validation. The results of the model produced an accuracy of 0.96. The model result was checked for its sensitivity with the Area Under the Curve (AUC) AUC results with a value of 0.89. Findings show that Random Forest could be applied to map forest fire severity classes with a good result.
Cave map: condition, potential, and danger information of cave passages in Malang Regency, Indonesia
Authors: Sahrina Alfi , Fitrianti Dwi , Sukoco Galih Fajar , Hidayat Khoirul , Ma’asika Naqia Min , Labib Mohammad Ainul 
Published: October 2022

Abstract
The cave maps provide information of the cave passage condition. Cave maps are generally used in various studies, such as archaeology, geomorphology, hydrology, and others. In this study, the map used is the basic cave map which is generally used in field surveys. The method used in this research is a map literature study which is then followed by a field survey to observe the real conditions. After doing the observation, the next step is interpreting the cave map, digitizing on screen, and doing descriptive analysis. The results of this study show that there is a variety of information presented in the cave map, including the condition of the cave related to the cave passage segment, the overall pattern of the cave passage, and quantitative aspects in the form of passage length, passage depth, cave passage area, and the cave area itself. Potentials that can be seen with the cave map are subterranean rivers and the presence of cave ornaments. And by looking up the map, the information about the dangers in cave exploration related to the dangers of collapse, flooding, landslides/erosion, and low oxygen will be found out.
Changes in the vegetation density of Purwodadi Botanic Garden year 2015 - 2020 with Normalized Difference Vegetation Index (NDVI)
Authors: Pratiwi Vani Gita , Ibrahim Ananda Ravelio Nur , Pratikno Bryant Putratama , Miliyati Dewi Fitria , Alfiah Nadiya Ismi , Wagistina Satty , Komang Astina I 
Published: October 2022

Abstract
Purwodadi Botanical Gardens is one of the botanical gardens in Indonesia that used for conserve dry tropical plants and absorbs CO2 emissions. Therefore, it is important to know the changes that have occurred in the vegetation density in the Purwodadi Botanical Gardens in the last multi-temporal year (2015 – 2020). Qualitative descriptive research method is used in conducting this research. Field observations were carried out using the quadratic transect method in order to validate the data from Landsat-8 image processing and identifying the absolute density and relative density in the field. Secondary data is also used to determine changes in vegetation density using remote sensing techniques with radiometric correction processes to improve image quality due to surface reflection errors and NDVI (Normalized Difference Vegetation Index) which is used as the final analysis to obtain the results of vegetation density. The results of vegetation density increased from 2015 - 2020 due to the number of trees that grew and developed well, coupled with the regular planting of trees and other plants every year. This certainly has an impact on the air produced being cleaner and lower in temperature so that it can provide convenience for Purwodadi Botanical Garden tourists.
Horizontal And Vertical Measurement of UAV Aerial Photo Exposures Results In The Senowo River Area, Krinjing Village, of The Merapi Volcano, Magelang District of Central Java Indonesia
Authors: Hartono Rudi 
Published: October 2022

Abstract
This study aims to examine the acquisition of small format aerial photography with UAVs and to display orthophoto data for elevation data extraction. The research area was conducted in a part of the Senowo River north of Merapi volcano in Central Java. The Photogrammetric methods using UAV planes need to be done for horizontal and vertical accuracy studies. This accuracy study was carried out by referring to the height of the flying plane and the geometry accuracy of the Rupa Bumi Indonesia (RB I= Standardized Topographic Map of Indonesia) map. The results of this study are accuracy testing based on the comparison of the coordinates of the test points with the results of aerial photo processing obtained by horizontal RMSE of 0.034 meter and vertical RMSE of 0.598 meter with an accuracy of 98%. RMSE value is used to determine the value of Circural Error 90 (CE90) and Linear Error (LE90). The value obtained by CE90 is 0.25 meter and the LE90 value is 0.99 meter. The accuracy of the orthophoto map that can be made is a scale of 1: 2,500 in class 1st for horizontal accuracy and a scale of 1: 5,000 in class 1st for vertical accuracy. Therefore, in the selection of optimal scale orthophoto maps, the recommended scale is 1: 5,000.
* PT. Wijaya Karya Jakarta Indonesia
**Assc. Prof. of the Geography Department of Social Science Faculty UM
Distribution of Water Pollution SubBengawan Solo Upstream Watershed on Central Java in 2020
Authors: Putri Nanda Regita Cahyaning , Deffinika Ifan , Arinta Dicky 
Published: October 2022

Abstract
The Bengawan Solo watershed is included in the 15 priority watersheds that must be restored because it is one of the 108 critical watersheds in Indonesia. It is indicated that the Bengawan Solo Hulu sub-watershed is experiencing pollution and water quality degradation due to the population growth rate and various community activities around the watershed area. This research was conducted to study pollution and water quality using a spatial approach in the Upper Solo Bengawan sub-watershed in the Central Java region. The research was conducted using the Pollution Index method and Geographically Weighted Regression (GWR) modeling using BOD, COD, TSS, TDS, DO and Phosphate parameters. The results of the Pollution Index carried out show that 5 sample points are included in the category of light pollution quality and 8 sample points are moderately polluted. The lowest pollution index value is 2. 87 at point 3 of the Upper Samin River area, Karanganyar Regency. The highest pollution index value is 7.5 at point 9 in the Lower Premulung River area, Surakarta City. The results of GWR on the dependent variable BOD show that the DO variable has the most significant effect. In the dependent variable COD, the BOD variable has the most significant effect. The TDS and Phosphate variables have the most significant effect on each dependent variable and the DO dependent variable shows that the BOD variable has the most significant effect compared to other variables. In the dependent variable COD, the BOD variable has the most significant effect. The TDS and Phosphate variables have the most significant effect on each dependent variable and the DO dependent variable shows that the BOD variable has the most significant effect compared to other variables. In the dependent variable COD, the BOD variable has the most significant effect. The TDS and Phosphate variables have the most significant effect on each dependent variable and the DO dependent variable shows that the BOD variable has the most significant effect compared to other variables.
Dynamics and Sustainability of Environmental Conservation at Adiwiyata School in Malang
Authors: Syaifulloh M , Kodir A , Zubaidah S , Sumarmi  
Published: October 2022

Abstract
Environmental damages in Indonesia, in the past few decades, have been increasing as well as worrying. One of the responses emerged in dealing with these problems is to intensify environmental education. Internalization of environmental education within school curricula, in Indonesia, is executed through the Adiwiyata program. This study aims to describe the achievements, obstacles, and sustainability of Adiwiyata school’s contributions to environmental conservation in Malang City. This research is a descriptive research. The research location is at SMAN 2 Malang City which has the status as an independent Adiwiyata school since 2017. Data collection was carried out by interview, observation and literature study methods. The results of the study indicate that environmental conservation is carried out not only in the internal context of the school. Environmental conservation is mainly focused on the sustainability of Brantas watershed. External parties involved in this project consist of the non-profit organization JKPKA, civil society, and stakeholders. There are several obstacles faced during the implementation of environmental conservation which are dominantly derived from the technical realm, namely parents’ permitting issue and the locations. Strengthening of shared perceptions is indeed taken by the school to maintain the sustainability of environmental education.
A Trend of Environmental Care and Disaster Resilience Based-Primary School Program to Emerge the Environmental Care and Disaster Resilience Attitude since the Early Age (A Case Study of Malang Regency)
Authors: Rosyida Fatiya , Sahrina Alfi , Isanaeni Nurhikmah , Hayati Putri Avivah El 
Published: October 2022

Abstract
An attitude of environmental care and disaster resilience should be emerged since the early age. The emergence of those attitudes can be started from school, especially the Primary School. The Primary School initiated several programs that can be done. This study used a survey conducted in several schools in Malang Regency. The survey was carried out by providing questionnaires, interviews and observations. The results showed that the most widely held programs were environmental care in 64%, 18% in disaster resilient programs, while the rest 18% do both of programs. It is important to conduct research to find out the trend of the programs carried out by the school so that it can provide valuable lessons for the other schools.
Improving Environmental and Cultural Carrying Capacity to Sustainably Develop Soge Beach in Pacitan Regency Indonesia
Authors: Sumarmi  , Irawan Listyo Yudha , Arinta Dicky 
Published: October 2022

Abstract
This research aimed to (1) determine the environmental carrying capacity of Soge Beach tourism, (2) determine the cultural carrying capacity of Soge Beach tourism, and (3) develop a sustainable strategy of Soge Beach tourism. The research design used descriptive research and mix method analysis (quantitative and qualitative). Data involved primary and secondary data. Primary data were collected from observations, in-depth interviews, and focus group discussions with tourism management, tourists, entrepreneurs in Soge Beach and the surrounding area. Secondary data came from the statistical data of the Pacitan Regency government. Data analysis employed qualitative and quantitative analysis. Data analysis also used SWOT to determine the Strengths, Weaknesses, Opportunities, and Threats of Soge Beach’s development. Research results showed high potential of environmental and cultural carrying capacity for sustainable Soge Beach development. Development strategies referred to SWOT analysis to reduce weaknesses by increasing cultural and environmental carrying capacity and improving existing opportunities.
Sustainable Urban Agricultural Land Control towards Determining Perpetual Agricultural Land (PAL) in Tangerang City
Authors: Deffinika Ifan , Zachra Astrid Tharissa Az , Kenedy Biffanca Allya , Abdillah Muhammad Noval 
Published: October 2022

Abstract
Tangerang City is one of the Indonesian capital city buffer areas, DKI Jakarta. Most common impact of being a buffer city is land conversion. It is an inevitable impact to support new growth and development business. Land conversion from agricultural become non– non-agricultural could affect food security in terms of supply and demand. Agricultural land area decreases by 38.96 Ha, from 1.113,34 Ha (2018) to 1.076,65 Ha (2019). To ensure the fulfillment of food needs, Land conversion can be limited by establishing a Perpetual Agricultural Land (PAL) policy. This study aimed to analyze the dynamics of land use in Tangerang City in 2014 – 2020 as consideration for determining the location of PAL. This study uses a quantitative approach with time series Landsat–8 image data in 2014, 2017, and 2020 obtained from LAPAN Sensory Catalog. In addition, secondary data statistics about land use from the National Statistic Bureau (BPS) also used to be considered. Data analysis in this study was carried out using quantitative descriptive statistics. The results show that the area of built–up land in Tangerang City grow about 8,07 % from 2017 to 2020. PAL development will be following current needs but still pay attention to the quantity and quality of future needs. The development of this PAL is pursued following the principle of sustainability. It can be realized by limiting the use of chemical fertilizers, developing agro–ecosystems, reusing irrigation water, and so on. Moreover, if the development of PAL gets more attention from the government, then agricultural productivity will impact in increasing the farmer’s welfare.
A Literature Review on Renewable Energy Resource and Optimization
Authors: Sharma Vijay Prakash , Somwanshi Devendra Kumar , Jain Kalpit , Satankar Raj Kumar 
Published: October 2022

Abstract
Step by step the energy request is broadening and in this way the necessities for a manageable source that won’t hurt the climate are of prime significance. Several projections express that by 2050 the energy requesting will basically increase. In any case bigger part of the energy necessities is fulfilled by oil subordinates yet by the utilization of innocuous to the environment power designs could help in giving the energy requests. As we in general understand that feasible power is the energy which is either established by the environment or straightforwardly from the sun or from heat conveyed critical inside the earth. In this review paper the renewable energy s power and warmth, which is produced using sun based, wind, sea, hydropower, biomass, geothermal assets, bio engages and hydrogen and these resources are known as unlimited resources.
Approximate climate analysis for assessing the suitability of Indian climate zones for hydroponic fodder applications
Authors: Basak Souryadeep , Bhatia Aviruch 
Published: October 2022

AbstractHydroponic fodder has been proposed as a novel low-tech solution to India’s fodder scarcity. Hydroponic fodder can reduce water requirements by up to 95% and use up to 70% less land due to their vertically scalable nature. The short crop cycles of approximately 7 days yields a seed to feed ratio of 1:8. This study analyses the external environmental weather conditions in Indian climate zones, assessing their suitability for the application of hydroponic fodder solutions. The weather of each climate zone was approximated by a representative city through parameter selection and optimisation by three-dimensional Euclidean distance minimisation. Simulation and analysis were carried out on the Rhinoceros software platform with the Grasshopper and LadyBug plug-ins. Hourly temperature plots, sun-path diagrams and psychrometric charts with modified predicted mean vote polygons superimposed were generated for each climate zone. The ambient weather suitability of the following representative cities was simulated to be as follows: Ahmedabad (86.70%), Kolkata (81.86%), Bengaluru (94.07%), Lucknow (73.23%) and Srinagar (30.85%). A cost benefit analysis was buttressed by a sensitivity analysis with respect to the selling price of green fodder. A preliminary cash flow analysis yielded a discounted payback period of 4 months for direct fodder sales and 20 months for sale of livestock products as a co-benefit of green fodder production.
Techno-Economic Assessment of LPG operated Porous Radiant Burner based Cook-stoves for Commercial Cooking Applications
Authors: Shaik Sofia Rani , Muthukumar P. , Kalita Pratul Chandra 
Published: October 2022

Abstract
The present study is to conduct a Techno-economic Assessment of a 5-7 kW Porous Radiant Burner (PRB) – based LPG cook-stove operating in eateries and restaurants. Process flow study has been performed primarily to understand the technological process involved in the PRB and also to estimate the cost of manufacturing. The cost estimation has been done considering direct costs such as material costs and labor costs, and indirect costs such as factory costs, works costs and administration costs. Sensitivity analysis has been performed considering the production capacity of 50, 250 and 500 cook-stoves each day. An economic feasibility study of PRB cook-stoves has been done by estimating the Pay Back Period, Net Present Value and Internal Rate of Return. For a manufacturing capacity of 250 cook-stoves per day, PRB yields a 51.4% return on the investment with a payback period of 0.68 years. Adopting PRB-based cook-stoves in small, medium and large-scale eateries results in an annual saving of Rs. 77500, Rs. 235000 and Rs. 1170000, indicating that PRB-based cook-stoves are undoubtedly economically viable.
Numerical Investigation of Concentrated Solar Central Billboard with Hexagonal Tubes.
Authors: Havaldar Sanjay N , Malapur Harsh V , Kulkarni Kaustubh G , Anderson Gary A. 
Published: October 2022

Abstract
The solar receiver is the most important component of any central solar tower power plant (CSP) system. A numerical analysis of four billboard geometry designs of the central tower receiver was undertaken in this study. On the receiver, the surface area, heat transfer fluid (HTF), and intensity of beam radiation were all constant. The mass flow rate of HTF was modified, and the temperature gain was used as a metric to determine the most efficient design based on the analytical results. Four different models of vertical tube receivers were designed and analyzed. In the analysis, the surface area of the receivers was the same. When compared to the vertical variable circular tube receiver design, the vertical variable hexagonal tube receiver design achieved a marginally higher temperature for the HTF fluid at lower mass flow rates.
Experimental Study on Strength Behaviour of Geogrid Reinforced Subgrade Soil
Authors: Pisini Sateesh , Thammadi Swetha , Nadan Monish , Edward Naadirah , Nisha Shaniza 
Published: October 2022

AbstractThis paper presents the summary of experimental program to evaluate the potential of KOBM (Klockner Oxygen Blown Maxhutte) slag to stabilize the geogrid-reinforced subgrade soil in Suva, Fiji. This KOBM slag is a by-product of steel manufacturing process in New Zealand. The standard California bearing ratio (CBR) laboratory tests were performed on the soil samples with various combinations of geogrid and KOBM slag, along with other geotechnical tests to determine the strength behaviour of subgrade soil. The laboratory experiments were undertaken to investigate the impact of using KOBM slag (0%, 5%, 10%, 15%, 20%) with single and double layers of geogrid reinforcement placed at H/2 and H/4 (where H is height of CBR mould) in the soil sample. The effect of geogrid reinforcement with respect to the position and number of layers with varying contents of KOBM on the strength behaviour of subgrade soil has been examined. Results of the current study indicate that there is a significant increase in CBR values for subgrade soil stabilized with KOBM and reinforced with geogrid. Maximum CBR value was observed in the soil sample reinforced with single geogrid layer placed at H/2 with 20% KOBM slag. This is the best outcome amongst all the combinations of KOBM, position/no. of layers of geogrid reinforcement in the current experimental study consisting of 50 experiments.