bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of the pollution degree of the geological environment on a petroleum product storage & distribution site
Authors: Petruta A M , Bica I 
Published: May 2021

Abstract
The study presented in this paper was conducted on a site pertaining to the distribution & storage component of the oil industry, the business of which was mainly the supply, using railroad and road transportation means, followed by storage in tanks and trading of petroleum products (e.g. gasoline, diesel oil, various oils). To carry out its activity, the site had the following technological equipment: vehicle loading platform/railway unloading platform, storage tanks, pumping station, hydrocarbon separator, technological transport pipes, storage areas, administrative buildings, etc. Based on the characteristics of industrial sites, a synthesis of the particularities of these site types was made. To that effect, the direct connections in terms of the specificity of the main and auxiliary activity were taken into account, as well as the handled chemicals and raw materials, but also how the waste was managed during the operational processes.
Studies on geothermal energy utilization: a review
Authors: Andronache M M , Teodosiu C 
Published: May 2021

Abstract
Sustainable development requires the use of sustainable energy systems. Energy use will increase worldwide, and geothermal energy consumption for both electricity generation and heating will also increase significantly. Sustainable use of geothermal energy means that it is produced and used outdoors, which is compatible with the well-being of future generations and the environment. This paper provides a review of the links between the development of geothermal energy used in HVAC systems and sustainable development, as well as a review of the sustainability assessment frameworks currently available.
Innovative technologies in constructions. Self-repairing concrete used in road infrastructure
Authors: Barbu A M , Stoian M M 
Published: May 2021

Abstract
Currently, concrete is the most widely used structural material in road infrastructure. Concrete is a sensitive material, cracks and micro-cracks may occur during operation. Although the cracking/micro-cracking of concrete does not implicitly cause structural damage, it creates a path for corrosive factors, which leads to decreased structural durability caused by material changes and reinforcement corrosion. The self-repairing ability of concrete refers to the process of closing cracks to prevent the entry of potentially aggressive agents. Concrete used in bridge construction is usually covered with a waterproof layer and a layer of asphalt mixture, which also acts as a wear layer, but which can prevent the entry of water containing corrosive ions, the natural aggressiveness of the environment or accelerated corrosion by the penetration of thawing substances etc. Road infrastructure repair works affected by degradation processes are costly, time consuming and lead to a reduction in traffic flow, by partially closing it during interventions. To overcome these shortcomings, over time, several types of concrete with self-repairing properties have been developed, based on several methods such as: pipe networks, superabsorbent polymer capsules and textile fibers, bacteria etc.
Study of soil characteristics after treatment with lime-based hydraulic binder using the in situ “layer by layer” stabilization method
Authors: Andries G , Carasca O , Batali L 
Published: May 2021

Abstract
Paper presents the results obtained in situ and in laboratory for a test section where the soil has been improved by mixing with a lime-based hydraulic binder. The treatment has been applied in order to obtain a more uniform soil bearing capacity, thus reducing the differential settlement that could appear between adjacent foundations or under the same foundation. The test section has been performed by mixing the local cohesive soil (silty clay) with 4% special lime-based hydraulic binder, then compacted in 3 layers, 20 cm thick each after compaction, resulting a final compacted layer of 60 cm. For this treatment a laboratory study has been conducted in order to determine the optimum binder admixture. The physical and mechanical characteristics of the improved soil have been studied in laboratory and in situ for 3 curing times: 3, 7 and 28 days. In laboratory have been carried out tests for identification and classification, for determining the density and water content, followed by mechanical tests as oedometers and shear box tests, while in situ Lukas plate tests have been performed. Paper presents results of all tests, including analyses and interpretation.
EFdeN Signature - a case study of a zero-energy house prototype optimized for Middle East climate
Authors: Baiceanu M. , Catalina T. , Ilisei G. , Chelariu A. 
Published: May 2021

Abstract
When talking about the urban challenges we face today at a global level, population growth and urbanization ranks high in the charts. Both challenges can be found in the Middle East and especially in Dubai, one of the fastest growing cities in the world - a rapidly developing urban settlement supporting an ever-increasing human population. With a very warm climate, the United Arab Emirates are struggling to develop strategies and solutions to decrease energy consumption. Among the major consumers in Middle East are the building therefore an integrated approach using renewable sources is mandatory. Within the Solar Decathlon competition the Romanian team of students proposed a house prototype to answer Middle East challenges. In this paper we present the developed model, its structure, systems and we demonstrate its potential as a positive energy balance building using numerical simulations.
A review of the usage of highly viscous fluids in industrial applications
Authors: Niculuta M C , Ghiaus A-G 
Published: May 2021

Abstract
Highly viscous fluids (HVF) are used in food sector as raw materials (melted vegetable, animal fats) or finished products (chocolate, sorbets), in construction sector as liquid state of Phase Change Materials (PCM) used to store thermal energy inside building structure or building materials such as liquid concrete, bitumen and tar, in automotive industry as PCMs used to passively cool batteries, and many others. Some applications are rather new and lot of research has been done, in the last decade, to find mathematical models for predicting HVF behaviour, in heat and mass transfer processes in scraped surface heat exchangers, in vegetable fat melters and in waxy crude oil transport pipelines. Better results could be obtained by enhancing HVF thermal properties such as increasing the thermal conductivity of PCMs by adding metallic powders, or by finding new natural materials (vegetable fats) which can replace more expensive and harmful ones (waxes) for PCMs. This study was performed to shortly present the main applications in which HFVs are being used, the main advances and findings made in the last years and the current challenges and research possibilities which are likely to be explored in the future.
Forming spatial thinking skills of social studies students in phenomenon analysis geosphere through the Geographic Information System (GIS)
Authors: Wahyuningtyas N , Laila N , Andini F 
Published: May 2021

Abstract
Spatial thinking skills are characteristic and an important part of learning geography. Geography studies in which various analyzes geosphere is phenomena can be solved by spatial thinking. Resolve geosphere phenomena, for example, disaster vulnerability can be assessed using assistance from Geographic Information Systems (GIS). Article writing procedure was carried out by examining, comparing, and interpreting the results of similar studies that have been explained in the form of journals and articles. Data analysis was performed using qualitative descriptive analysis techniques. Based on the analysis results it is described that the Geographic Information System (GIS) provided an important role in creating and improve skills students’ spatial thinking. GIS provides opportunities for social studies students to explore the geosphere phenomenon in the surrounding environment uses technology. Increased spatial thinking skills make students better recognize the condition of the surrounding environment from various aspects of both threats, vulnerability, and risk of disaster.
Local history online learning strategies: teacher’s perception
Authors: Gunawan R , Rachmah H 
Published: May 2021

Abstract
The purpose of this research is to determine the appropriate strategy in teaching local history according to the teacher’s perception. Usually, local history learning is done directly by making visits to historical places so that it can build a complete picture of an event. However, when learning is being carried out at home, the teacher must be able to determine how to properly teach local history online. This study used a case study research design by taking cases that occurred in the province of DKI Jakarta. Data were collected from history teachers who were involved in history teacher forums and conducted online through interviews and observations via online videos. The results of this study indicate that local history learning can be done online by providing information to students on online site addresses related to local history in DKI Jakarta cultural heritage sites. Hands-on practice carried out by students can help students think critically and give them awareness about the importance of knowing the local history around them to see the world comprehensively.
Introducing environmental education to early children through 3R activities (an effort for Indonesia free trash)
Authors: Sufia R , Arisona R D 
Published: May 2021

Abstract
The Indonesia Zero Waste Program must be implemented continuously and sustainably. One interesting effort is to teach children about the importance of environmental aspects in the future. The success of the program must involve all aspects of society. Besides the Indonesia Zero Waste Program can be implemented through environmental education, which applied in formal education. Environmental education since childhood was an effort with a successful level of material absorption and formation of the right attitude. This paper was the result of work in classroom action research which a collaborative way between researchers and teacher at MI Fathul Ulum, Palurejo. Respondents in the study were children at first grade students with a qualitative research approach. Collecting data in this study using documentation techniques with coherent time records. The research objective was to foster an environmental care attitude from an early age. Emphasizes knowledge of attitude and absorption of 3R-related material (reduce, reuse, recycle). The results of this study were in the form of better student knowledge about protecting the environment. Regarding the formation and knowledge of attitudes, students are invited directly to 3R practical activities. This activity is manifested in 3R activities that produce used goods that have useful values.
The impact of floating net cages on the water quality of riam kanan reservoir, south kalimantan
Authors: Arisanty D , Hastuti K P , Adyatma S , Azhari M 
Published: May 2021

Abstract
Reservoirs in Indonesia have been widely used as floating net cages, including in the Riam Kanan Reservoir. The use of the reservoir as a floating net cage has affected the quality of water in the reservoir. The purpose of this study was to analyze the physical and chemical quality of water in the Riam Kanan reservoir due to floating net cages cultivation activities. This study used a purposive random sampling method, with the sampling location determined based on the density of floating net cage cultivation with a total of 8 points and a depth of 2 m, 6 m, and 8 m, respectively. The physical value of water was obtained by direct measurement and the chemical value of water is obtained from the measurement results in the laboratory. The data analysis in this research was the descriptive analysis where the data were obtained from the tables and graphs. The results of the research on the physical-chemical quality of water in the Riam Kanan Reservoir show that the physical values of water such as temperature, smell, taste, and color in the waters of the Riam Kanan Reservoir were still within the normal condition. The value of pH has a value of about 7.18-7.76. The value of Dissolved Oxygen (DO) was about 3.76 mg/l-6.14 mg/l. Nitrate value is about 0.002 mg/l-0.4099 mg/l. The nitrite value was about 0.0012 mg/l-0.0034 mg/l. Ammonia content was about 0.1643 mg/l-0.5132 mg/l. The levels of pH, DO, nitrate, and nitrate were a normal category, but the ammonia level was in the dangerous category. The chemical content increased with the depth of the water, due to the influence of the used feed deposited.
Land cover analysis using object based image analysis based on Landsat 8 OLI images in the city of Jember
Authors: Pangastuti E I , Wijayanto Y 
Published: May 2021

Abstract
Jember area has a status as a PKW area (Regional Activity Center). This has resulted in diversifying activities of the population and increasing demand for land, so that land use change is inevitable. Real time land cover data updates in the City of Jember with Landsat 8 OLI imagery using OBIA can be used as an alternative to find out information on land cover classes. This study aims to determine the accuracy of land cover data extraction using OBIA. Using the OBIA method which involves the segmentation process with a multiresolution segmentation algorithm and a classification process with the nearest neighbor algorithm. The results showed the level of accuracy of land cover extraction using OBIA was 90%. These results indicate that the OBIA method for data extraction of land cover in urban areas has high accuracy.
Identifying environmental issues on the prehistoric societies in history learning
Authors: Ahmad T A 
Published: May 2021

Abstract
Internalizing environmental values requires a multidisciplinary approach. Therefore, almost all aspects have an interest in environmental problems, including history education. This paper aims to identify environmental issues that can be incorporated into history learning. One of the topics that are nearly related to ecological matters is the prehistoric topic. Here, people still have a high dependence on nature. As part of historical material, prehistoric times are very relevant to introduce environmental issues to students in the classroom. This paper uses an analysis of the historical education curriculum and textbooks used. This paper intends to find the relevance of history learning in the cultivation of environmental care among students. This paper will discuss strategies for internalizing the environmental values in historical learning, especially in prehistory discussion. This paper is expected to be able to contribute to how historical education plays a role in strengthening the character of caring for the environment.
Analysis of the Need for Social Studies Learning Media based on Local Advantages of Semarang City
Authors: Nisa A N S , Ginanjar A , Hermanto F 
Published: May 2021

Abstract
In 21st century skills require students to have 4 skills, there are Critical thinking, Communication, Collaboration and Creativity. Therefore, teachers are expected to have the ability to develop these skills. For example by using social studies learning media. It is undeniable that social studies teachers in Semarang are accustomed to using learning media. Unfortunately there are still some teachers who find it difficult to apply Semarang’s local advantages in social studies learning media. Therefore, the goal of this research is about analyzing the needs of social studies learning media based on local advantages of Semarang. This type of research is descriptive qualitative. Respondents were junior high school social studies teachers in the city of Semarang, a number of 36 respondents who were randomly selected based on the location of the school spread over 16 sub-districts in the city of Semarang. Data analysis method in this research is descriptive analysis. The results of this research that 88.9% of social studies teachers knew the local advantages of Semarang city, 69.4% of social studies teachers had no difficulty developing learning that was fun and contextual. However, social studies teachers find it difficult to develop social studies learning based on local advantages because 52.8% of social studies teachers have difficulty to find learning media based on local advantages, and 58.3% experienced problems in packaging and integrating social studies learning with local advantages. Learning media based on the local advantages of Semarang city need to be developed based on this need analysis.
Learning Ability and Supporting Capacity of Online Learning In Students during Covid-19 Pandemic
Authors: Hermanto F , Putri N A 
Published: May 2021

Abstract
The world is facing a global problem, namely Coronavirus (COVID 19). The Covid-19 outbreak in Indonesia has spread to various regions. The government has imposed social distancing and several regions have imposed Large-Scale Social Restrictions (PSBB) to break the chain of spreading covid-19. Large-scale Social Restrictions are restrictions on activities in areas suspected of being infected with Covid-19 to prevent its spread. Social distancing policy affects almost all sectors of life including the Education sector. One of them is with the issuance of Circular Letter No. 36962/MPK. A/HK/2020 on transferring face-to-face learning to online learning. This has an impact on the implementation of learning in higher education from learning ability and the supporting capacity of online learning in students. The method used in this study is quantitative descriptive. This research focuses on 10% of students of the Faculty of Social Sciences Universitas Negeri Semarang. Factors analyzed in this study include external, internal and contextual factors in online learning during the covid-19 pandemic. Data analysis was carried by reducing data, presenting data, until conclusion. The result of this study is that students have the ability to do online learning based on the ability to manage learning time, learning motivation, student discipline, it is supported by a good internet network, technology literacy skills as well as the ability to find learning resources. The support capacity of students in online learning is obtained optimally starting from the support of parents, easy communication with lecturers, interesting learning methods and media. The problem factor in online learning is that it requires a lot of internet quota, lecture tasks are considered excessive so it requires more time and effort management.
Building student’s political behaviour in the context of election in Indonesia
Authors: Abdullah M , Hakam K A , Wilodati  , Ratnafitria  
Published: May 2021

Abstract
The electoral process in Indonesia is a system that be built in democracy of typical politics of Indonesia and it cannot be separated from decision-making due to the voters. This decision-making in determining the choice on any individual voters cannot be separated from their social characteristics, so did the same with the students. Problems that appear then is the social characteristic of the students impact on terms of their political attitudes in elections? How to build the student’s political behavior in election? Through the application of descriptive study design with a quantitative approach and take the subject of research on students of UPI, this study tries to assess the contribution social characteristics of the students to their political behavior in election that be reviewed from the perspective of political geography. In general, the results indicate that the student’s political behavior tended to be rational. Meanwhile, the loyalty and/or fanatic attitude to the one is not to be seen. Here it can be seen that the social environment and education as the social characteristic of the society, especially on the students, contribute in forming their political behavior quite enough. Thus, it is time for the public awareness and political behavior be constructed and trained for always in line with the interests of the nation political advance.
Adaptation strategies for pedicab drivers in their socio-economic life
Authors: Rizal A , Suharso P , Hartanto W , Sukidin  , Ani H M , Mardiyana L O 
Published: May 2021

Abstract
The pressure of socio-economic life pedicab drivers are a reason to adapt. This is because the reality they experience is contrary to their expectations. Adaptation strategies undertaken to free themselves from socio-economic pressures and realize their hopes in life. This study aims to explain about the adaptation strategy of pedicab drivers in their socioeconomic life (Study at the Pedicab Mastrip Association). This research is a descriptive study with a qualitative approach. The subjects and informants of the research were the pedicab drivers, the mastrip pedicab community of Jember Regency and the pedicab passengers. Data collection methods used are interviews, observation and documents. The data analysis steps used include data reduction, data presentation and drawing conclusions. The results of this study indicate that the pedicab drivers carry out adaptation strategies in their socio-economic life to suit the conditions they experience. The adaptation strategy stage starts from expectations that are not in accordance with reality, causing action to adjust. The pedicab driver’s hope is to get an income that can meet family needs in terms of education and the desire to improve socio-economic life. The fact is that pedicab drivers are disappointed because currently there are few passengers and low income, so this hope is not realized. Adaptation strategies are carried out by increasing the work ethic in the form of arriving early, increasing working hours, going around looking for passengers and placing pedicabs on different sides of the base. Making innovations by participating in ornamental pedicab events, for example in the Prophet’s birthday, carnivals. Having a side job, namely construction workers, parking attendants, farming, sewing shoes and looking for wrecked goods and some pedicab drivers waiting for passengers at the base.