bluuebunny/crossref_metadata_2025 huggingface dataset:
Three dimensional path planning of UAV based on adaptive particle swarm optimization algorithm
Authors: Chen Jie , Zhao Hongchao , Wang Lei
Published: March 2021

Aiming at the problem of falling easily into local optimal solution of conventional particle swarm optimization algorithm, an adaptive particle swarm optimization algorithm is proposed, which adaptively adjusts the values of inertial weight and two learning factors in the iterated search process. The environment model of path planning is built for unmanned aerial vehicle (UAV) to perform reconnaissance task in mountain environment. The self-constraint conditions of UAV are analyzed. The fitness degree function of adaptive particle swarm optimization algorithm and flow chart of path planning algorithm are designed. The simulation experiments of three dimensional path planning of UAV are carried out by adopting respectively the adaptive particle swarm optimization algorithm and the conventional particle swarm optimization algorithm. The contrast of simulation result shows that the proposed adaptive particle swarm optimization algorithm has higher global search ability and search precision than the conventional particle swarm optimization algorithm.
A Wireless Charing Vehicle on-demand scheduling algorithm based on entropy weight method
Authors: Guo Tai , Zhi Chun
Published: March 2021

The energy of the sensor node (SNs) is always an important factor restricting its long-term stable operation. In order to ensure that the sensor node has a stable energy supply and prolong its working life, a charging scheduling algorithm based on the entropy weight method is proposed to reasonably schedule the wireless charging vehicle (WCV) and improve charging effectiveness. In the proposed algorithm, the concept of node network attributes is first proposed, and the entropy weight method evaluation model is introduced, and then the entropy weight method is used to comprehensively evaluate the network attributes of the nodes, and the scores of each node after the evaluation are arranged in descending order to obtain the charging plan. WCV carries multiple detachable charging devices to charge the nodes according to the charging plan. Finally, the proposed algorithm is simulated, and the result shows that the proposed algorithm is significantly higher than the existing FCFS and NJNP algorithms in terms of charging delay and node survival rate.
Research on Intelligent Technology of Dispatching and Control to Ensure Power Supply Based on Multivariate Information
Authors: Kai Wang , Rui Zhang , Lei Song , Haibo Lan , Yi Wu , Jianhua Pan , Guosong Wu
Published: March 2021

The development of power dispatch services to ensure power supply has put forward new requirements for the digitalization, intelligence and servitization of the dispatching system. Based on the data of power dispatch and control, the characteristics of power dispatch services to ensure power supply, and research on intelligent technology of dispatching and control to ensure power supply based on multivariate information, by establishing the data model of power supply services, and applying forms of expression such as knowledge graph, with deep neural network and rule learning technology, this paper explores and develops an intelligent robot of dispatching and control to ensure power supply based on multivariate information, which realizes the functions of interface integration of various service platforms, visualized monitoring of power supply information, and release and submission of power supply information, etc. By building intelligent applications according to the requirements of power dispatch services to ensure power supply, it effectively improves the risk prevention and control level and emergency response capacity of power system to ensure power supply, and comprehensively upgrades the safe and stable operation of power system to ensure power supply.
Research on automatic arrange and detect system for plentiful immethodical components
Authors: Kui Zhang , Ru Zhang , Yaru Cui , Hailong Zhao , Huaguang Liu , Honglei Ran , Lijing Yin
Published: March 2021

With the development of electronic technology, the requirements for electronic components are gradually becoming chip, miniaturization and high precision. In this case, problems such as scattered sample parts and poor detection accuracy and stability in traditional production testing methods seriously affect production quality. Therefore, in-depth study of intelligent material discharge detection has become an important way to solve the problem. In this paper, the needs of intelligent detection are comprehensively analyzed, and the machine vision imaging optimization is deeply studied, feature matching and small sample capture placement technologies are learned. In order to realize intelligent discharge detection of micro scattered equipment, an automatic discharge system is developed, which integrates counting module, defect detection module and automatic discharge module.
Research on Interactive Installation Design Centering on Urban Light Pollution Based on Open-source Programming Language
Authors: Lijun Xu
Published: March 2021

The design of multimedia interactive installations symbolizes the integration of technology and art, and has already become an artistic expression form with distinctive technological beauty of the times. Furthermore, the application of open-source programming language enhances the interactivity and enriches the connotation of the installation itself, as well as creates the aesthetic feeling for the viewers via catering to their sensory needs during the interaction with the installation. This research takes “TURN OFF!!”, an interactive installation as an instance, which focuses on the theme of environmental protection and employs Processing, the open-source programming language and Arduino, the open-source electronic prototyping platform. Also, the research manifests the application significance of the open-source programming language in the design of interactive installations, and discusses the influence of the integration of science and technology and artistic design during the creation of art and the ultimate presentation of the artwork. In the end, the research indicates that future designers should have programming-related technical skills to better display their creativity and imagination.
Analysis of Wheel-rail Force Characteristics of Type A Metro Bogie with a Speed of 80 km/h
Authors: Gong Yanqing , Hu Handa , Xiao Haijian
Published: March 2021

In this paper, the wheel-rail force analysis test is carried out on the type A metro vehicle equipped with a certain type bogie and the maximum operating speed is 80km/h. The purpose is to explore the characteristics of derailment coefficient, wheel unloading ratio and wheelset lateral force under different conditions. According to UIC518, the safety, ride index and stability of subway vehicles under AW0(AW0 means “no load”) and AW3(AW3 means “overload”) are evaluated. Through the analysis of this paper, it is found that when the train runs on the R300-meter curve, the various indicators are the largest, followed by the R500-meter curve, and the smallest on the straight line. the derailment coefficient and the wheelset lateral force of the motor car are greater than those of the trailer. The various wheel-rail force indicators of this type of subway bogie all meet the requirements.
A simple and reliable DC large current lossless sampling circuit
Authors: Chengxiang Lyu
Published: March 2021

This article introduces a method of sampling and measuring DC current using the resistance of the wire itself, which can simply replace the current sampling resistance usually used in DC current measurement, making the wire itself a simple and reliable non-destructive sampling of large DC current Measuring sensor. Since there is no change to the original circuit state, the heating loss and connection points of the access sampling resistor are avoided, thereby greatly improving the reliability of the circuit
Study on the Boost Converter with Parasitic Parameters of SiC MOSFET
Authors: Yin Yifan
Published: March 2021

As a new type of transistors, SiC MOSFETs have excellent performance on switching speed and are capable to improve the energy efficiency and energy density of power conversion devices. On the other hand, the parasitic parameters associated with them bring potential problems when designing switching regulators or analysing the converter performances. In this paper, a boost converter model based on the switching characteristics of SiC MOSFETs is presented for describing the power conversion behaviours comprehensively and accurately. Applying that model, a feedback control system is designed and simulated to explore the influence of each parasitic capacitance on the boost converter. Also, the power loss of the converter during steady operation is analysed and simulated. The research method and simulation results in this paper can be referenced for the design of boost converter with parasitic parameters of SiC MOSFET.
Research on blur discrimination thresholds of three-Channel for color image
Authors: Yan Hao , Huang Qingmei , Chen Defen
Published: March 2021

On the basis of modern theory of color vision, the blur discrimination threshold of color image with three channels (luminance, red-green and the yellow-blue channel) in the opponent color space (DKL space) is studied through visual experiments in this paper. The visual evaluation experiment is designed by the psychophysical method based on Quest algorithm. Finding the blur discrimination threshold of color image according to the DKL space is of great significance for helping us understand color perception of image. It also has a wide range of applications in areas such as color image compression during color image transmission. Two (flowers and artificial object) typical images in the McGill standard color image database were chosen as the experimental images. After converting the color space of the image from RGB to DKL space, Gaussian low-pass filtering is used to establish the fuzzy image database. Quest algorithm which is a psychological physical method is used to design the visual evaluation experiment. Eleven volunteers with normal color vision were invited to participate in the visual evaluation experiment for each of the three channels of the two images. Our main conclusions are: (1) Human eyes are more sensitive to luminance information than color information. (2) The larger the contrast of the image and the smaller the uniformity of the image, the more sensitive the human eye is to changes in image blur.
The Application of Open-source Language in Interactive Installation on Enhancing Water Conservation Awareness
Authors: Nan Zhang
Published: March 2021

The support of Processing programming technology and Arduino open-source platform enables the art design of the installation mentioned in this paper to become more interactive and more appealing, thereby creating an immersive experience for the participants. In addition, its designer can explore the value of the two technical tools and unlock the potential through research and practices. Concerned over the waste of water resources, the interactive installation enlightens the participants to realize the consequences of water waste via controlling the water valve of the faucet and then receiving the feedback of dynamic effects on the screen. Furthermore, it is expected to attract the attention of the participants, to inspire them to take stock of their water usage habits, and to achieve the installation’s ultimate goal of enhancing the experiencers’ awareness of water conservation.
A multi-sensors weighted data fusion method based on measurement traversal correction
Authors: Jia Yang Jun , Yuan Wang Bo , Ye Shi , Peng Li , Wei Zhang Er
Published: March 2021

In the case of multi-sensors weighted data fusion with unknown prior knowledge, a weighted data fusion method based on measurement traversal correction is proposed. The fusion accuracy of multi-sensors data fusion is influenced by both the measurement data accuracy and the data fusion weights of sensors. The measurement data of sensors is corrected through analyzing the reliability of different time data measured by sensors. The fusion weights of multi-sensors data fusion are optimal through depply analyzing the influence of weight distribution on multi-sensors data fusion accuracy. Typical examples are used to validate the proposed fusion algorithm, and the result shows that the fusion result is satisfying, and the algorithm is theoretical and practical.
Real-time Sensing and Visualization of Electromagnetic Situation Based on Multi-source Information Fusion
Authors: Huang Hanyan , Cao Te , Chen Hongbo , Wang Jinbo
Published: March 2021

It is of great significance for real-time sensing and visualization of electromagnetic situation to grasp the battlefield situation. The most important procedure is to deal with multi-source mass electromagnetic perception data and realize the point to space electromagnetic situation data refactoring. The basic idea of this paper is to estimate the electromagnetic field intensity of any concerned position by space domain fusion of multi-source data fusion after time domain fusion. Firstly, the Grubbs criteria is used in the pretreatment of single sensor data, and then the Bootstrap re-sampling methods is used for single sensor information fusion. This method can eliminate the vagueness and uncertainty of a mass of sensing data in a short period of time. Secondly, by the D-S evidence theory, the multi-sensor perceptual data combined with the wave propagation model and expert information are fused, and finally the prediction of space electromagnetic situation data is reconstructed. Finally, calculation examples of single sensor fusion and multi-sensor fusion are given to illustrate that the developed methods can increase the credibility of the reconstructed electromagnetic situation.
Design of Feedback Matrix for Full-Order Flux Observer of Asynchronous Motor
Authors: Zhou Sheng Tao , Deng Xin , Xing Peng Kun , Zhu Wenbai
Published: March 2021

The asynchronous motor full-order flux observer uses the motor itself as a reference model to observe the motor’s flux and stator current by constructing a state equation. It takes the stator current output and introduces the error between the actual current and the observed current as feedback correction, and improves the performance of the full-order flux observer by adjusting the feedback gain of the correction item. Based on the in-depth analysis of the zero and pole images of the open-loop transfer function of the small signal linearized model, a feedback matrix design method is proposed to improve the smooth switching of the full order flux observer and the dynamic performance of the full order flux observer speed identification. Simulation results verify the correctness of the analysis method and the feasibility of the proposed countermeasures.
Detection of Ship Shaft-rate Electromagnetic Field Signal Based on NLMS Algorithm
Authors: Wang Kaisong , Zhou Guohua , Zeng Wenshi , Lu Xihao , Zhang Xiaochen
Published: March 2021

Ship shaft-rate electromagnetic field signal contains a lot of valuable target feature information, and effectively extracting its line spectrum components plays an extremely important role in underwater target recognition. In order to effectively separate the characteristic line spectrum of ship shaft-rate electromagnetic field from broadband background noise, this paper studies and analyzes the shaft-rate electric field by using the line spectrum enhancement algorithm based on adaptive filtering. Firstly, the application principle of adaptive line spectrum enhancement and NLMS algorithm in ship shaft-rate signal detection is briefly described. Then, an adaptive line spectrum enhancer is constructed according to the improved NLMS algorithm, and the obtained shaft-rate electric field data are processed and analyzed by this method. Finally, it is verified by simulation data and experimental data. The results show that the algorithm can effectively suppress the background noise, significantly improve the signal-to-noise ratio, and enhance the detection ability of ship electromagnetic field signals in practical applications.
Utilization of the maros karst landscape based on the morphology (case study in bantimurung subdistrict, maros district, sulawesi selatan)
Authors: Setiadi R P , Damayanti A , Dimyati M
Published: March 2021

Karst region of Maros Regency is valuable due to the natural resources available for the local economy. This study aims to map the karst geomorphology units using GIS techniques and to illustrate the use of the landscape by surrounding communities. Information on karst distribution is needed because the karst potential has scientific, economic, and humanitarian values, which are a wealth of resources. The variables used in this study are geological, altitude, drainage pattern, and slope maps. We determine the distribution of karst geomorphological units using the overlay method. Primary data processing and descriptive analysis are used to determine the utilization of each karst geomorphology unit. The result is that the karst has an area of 33.58 km² or 20% of the total area, which covers the 10.17 km² plain karst, 15.84 km² plateau karst, 6.07 km² cone karst, and 1.49 km² tower karst. The plain karst is used for agricultural land, while the plateau karst and cone karst for tourism services, with the cone karst in the form of guano fertilizer sources. Meanwhile, tower karsts are utilized for limestone mining.
Land alienation in the johor bahru district area: the factors of unsuccessful response of form 5a, national land code 1965
Authors: Hakim A M , Samsudin S , Haffiz A A
Published: March 2021

Land alienation in Malaysia constitutes an important element in the conduct and governance relating to the National Land Code (NLC) 1965. However, the alienation is within the exclusive jurisdiction of the state authority and the process of such alienation takes too long including to resolve the requirements of Form 5A, NLC 1965. Form 5A is a notice to the applicant to claim the alienation fees which include the quit rent, premium, boundary mark surveying fees, and preparation and registration of documents of title. Although various methods have been taken to manage the issues of Form 5A, there are still lack of response because several internal and external factors. This study investigates the key factors that contribute to unsuccessful of Form 5A in the Johor Bahru District Area. The study conducted by two kind of methods, interviewing 10 respondents and questionnaire distributed to 229 respondents. The results shortlisted 22 factors and narrowed down into four main factors: lack of money, the rates charged are too high, appeal process for premium reduction, extension period and instalment payments. This study is important to balance the property ownership by considering the emerging issues of land alienation for the urban poor.
Toponym investigation as introduction to the local value in Cirebon City
Authors: Segara N B , Hermansyah
Published: March 2021

Places name in Cirebon City is strongly influenced by geographical, biological, socio-historical elements, folklore, and local figure. Toponyms in Cirebon City have local values that be used as learning resources. This article aimed to describe an investigative process carried out by students and local value study based on Cirebon City toponym. The study was conducted in four sub-districts, namely Kejaksan, Pekalipan, Lemahwungkuk, and Harjamukti. There was a total of 50 location names. The investigation was carried out by conducting in-depth interviews with various community leaders, elders, keratin (palace) guides, and kuncen (caretaker). Investigation result exhibited that Cirebon toponym has a unique background and strongly influenced by geographical, biological and socio-historical, local figure. It is specifically influenced by the development of Islamic civilization through the Cirebon Sultanate and Sunan Gunung Djati. Therefore the toponymy in Cirebon City has the potential to be used as an introduction to essential local values.
Geographic media literacy for indonesian geography education
Authors: Sukmayadi V , Yahya A H
Published: March 2021

In this information-saturated world, people are thriving to cope with seemingly overload streams of information and images. The digital advancements alter and extend our means of communication abilities, information access, and spatial formations. Hence, a new literacy is needed to wield this new digital world. In this regard, the current conceptual paper attempts to explore the nexus of media literacy and geography education in coping with the digital era. The paper reviews the literature on geographic media literacy by describing the essential elements of the relevant literacy coined by Lukinbeal (2008). The paper goes on to discuss the three factors that play a prominent role in geographic media literacy. Finally, this paper recalls the importance of geographic media literacy and how it can contribute to the development of geography education in the Indonesian Setting.
The implementation of group investigation learning model to equip students to think critically in addressing the hoax content of disaster on the internet
Authors: Oktavianto D A
Published: March 2021

Nowadays, internet access can give not only positive influence but also the negative one. One of the negative influences is hoax news about natural disaster. This research aims to implement Group Investigation learning model in order to develop students’ critical thinking skills, so students can respond carefully on hoax news of natural disaster. The method in this research was Classroom Action Research (CAR). The result shows that; (1) the knowledge students have of the potential for natural disasters, does not guarantee that they can understand whether the disaster information is a hoax or not; (2) information about disasters needs to be investigated in groups for people of the same age as middle school students; (3) Students’ confidence in a news is directly proportional to their actions to share a content through social media; (4) disaster information is something that needs to be considered in disaster learning.
Development of social teaching materials based on geography literacy for increasing, critical, and creative thinking skills
Authors: Sugiyanto  , Maryani E , Ruhimat M
Published: March 2021

Purpose of this study is to develop geographic literacy-based teaching materials, to improve 21st Century skills namely critical, creative, collaborative thinking skills. Researcher employs an approach namely ADDIE model (Analysis, Design, Development, Implementation and Evaluation). The feasibility assessment of the produced teaching materials is done by testing the product from experts, practitioners by the teachers and users by the students. Researcher collects data by using questionnaires, and product evaluation sheets. The results of the study show: 1) geography literacy based social studies modules for 21st century skills improvement, is stated as “worthy of use for learning” by experts with an average score of 90.67. Detail scores are as follows: aspects of the content scores 94.12, aspects of the presentation scores 90.38, and the geographical literacy aspect scores 87.5; 2) as much as 90.27% of students argue or give a positive statement that the geography literacy social study module is able to encourage high, critical, creative, collaborative thinking and further develop broader views to students.Conclusion: Social Study modules based on geographic literacy can be used to develop student 21st century skills primarily critical, creative and collaborative thinking skills.
Ecopedagogy based learning as an effort to increase student ecoliteration and the development of environmental care characters
Authors: Fadjarajani S , As’ari R
Published: March 2021

Excessive exploitation of the modern human environment can ultimately damage the environment and have a negative impact on human life on the surface of the earth. Providing basic knowledge about the environment is very important to increase environmental awareness and solve environmental problems. The idea of eco-literacy can be a practical solution to overcoming these environmental problems. This research was conducted descriptively on schools that have Environmental Education lessons. Data retrieval and analysis is carried out based on eco-literacy achievement competencies of 4 components. Competencies that can be used as a reference for eco-literacy achievements include; head (cognitive), heart (emotional), hands (active), and spirit (connectional). The four competencies can be implemented in the learning process and field learning applications to increase the eco-literacy of students and instill habitual attitudes that care for the environment in everyday life. One effort to increase the eco-literacy of students is through ecopedagogy-based learning. Competencies that can be achieved are; 1) formation of attitudes and concerns based on field studies, 2) increasing understanding, building environmental ethics and morals, and 3) active participation in community life in a continuous manner.
Relationship between environmental knowledge towards student’s attitude in environmental management
Authors: Ruhimat M , Ruhimat B F
Published: March 2021

This research aims to analyze the relationship between environmental knowledge and student’s attitude towards environmental management. The research was conducted on Madrasah Aliyah students in Purwakarta District-West Java. The research using the survey method. The result of research shows that there was a significant linear relationship between knowledge towards student’s attitude in environmental management, but the effect was low. The result of this research is recommend a learning of geography, but it must be accompanied by efforts in cultivating attitudes that are relevant to the substance of geography.
Utilizing thematic maps to develop Indonesia natural resources analytical skills
Authors: Basyari I W , Segara N B , Fhazarwati D
Published: March 2021

Maps are one of the media and learning resources potentially to be used to develop analysis capability on Indonesia natural resources. The purpose of this study was to determine how providing map in worksheets can improve the capability to analyze natural resources potential. This study aimed to determine map influence on the ability to analyze natural resources potential. This research was a quasi-experimental study. The population in this study were all students of seventh grade on the one of State Secondary School in Cirebon City. The research sample was 83 students divided into two groups, 42 students as a control class and 41 students as an experimental class. Data collection was conducted through study documentation, worksheet result, and analytical skills assessment. The feasibility test result exhibited that providing maps on the worksheet is feasible to be used in the learning process. The experiment result exhibited differing ability to analyze natural resources through maps learning between control class and experimental class.
Application of seismic attributes in structural and facies modeling for volume calculation on statjford formation, notrh viking graben
Authors: Aji W P , Haris A , Ajar S B
Published: March 2021

Viking Graben is the dominant main structure in the northern North Sea. The study area is located on North Viking Graben. In this study focused on the formation of Statfjord. The formation was precipitated during the late Triassic until the early Jurassic. This layer is a sandstone sediment. The reservoir characterization of the coating will be done by integration of seismic attribute analysis and seismic inversion. Seismic attribute analysis is performed to identify the boundary layer, which is indicated by the difference between the two layers and the inversion seismic done to show the acoustic impedance which is useful to know the characteristics of the layer. Both attributes (seismic amplitude and acoustic impedance) are expected to investigate the complete reservoir. Based on the results of interpretation and analysis of the seismic attribute will be built geological model as a basis for treating reservoir volume calculations by volumetric methods. In this research, the results obtained in the form of porosity distribution map with a large porosity value of 0.125 - 0.225 (%) and STOIIP distribution map with a large reservoir volume of 186 × 106 sm3
Erosion hazard levels in the tanralili sub-watershed, south sulawesi
Authors: Suryanto N U , Damayanti A , Dimyati M , Rustanto A
Published: March 2021

Erosion that exceeds the normal threshold can cause damage to the environment. The reduction of the physical properties of soil is a result of erosion. The USLE method is an empirical model that can predict the amount of erosion. The purpose of this study was to determine the level of erosion hazard that occurs in the Tanralili sub-watershed. The benefit of this study is to find out areas that are experiencing severe erosion so that a recovery plan can be made for eroded soils to prevent even more significant decay Erosion calculated using the USLE (Universal Soil Loss Equation) model. There are several variables used in the calculation, which are the rainfall erosivity factor, the soil erodibility factor, the topographic factor, and the cropping management factor in looking at vegetation cover in the field using a survey method. The analysis used in this study is descriptive and spatial. Very high erosion occurs in almost all of the Tanraliili sub-watershed, about > 480 tons/ha/year, which happened in slopes 15-45%. Massive erosion occurs in the west with a total amount of 180-480 tons/ha/year. The total erosion that occurred in 2018 was 701542.9 tons/ha/year.
Assisting smart disaster management for smart city program, case study: Pringgokusuman village, Yogyakarta
Authors: Suherningtyas I A , Permatasari A L , Wiguna P P K , Adninda G B
Published: March 2021

The smart city is a concept of creating a comfortable, safe, and accessible living place. Furthermore, a smart city is built to raise the value of the city in economic, social, and technology. One dimension of all seven dimensions planned by Yogyakarta Smart City Program is smart disaster management. Yogyakarta located in the disaster – prone area, with disaster potentials such as earthquake, fire, tornado, and flood. This particular dimension becoming essential to reduce the effects of a disaster. One of the effects of a disaster is the loss of human life. Citizen in Yogyakarta especially in Pringgokusuman is one of the group of element at risk in disaster. Education about disaster is important to them. This research aims to analyse citizen knowledge of the disaster information. This research is using qualitative research methodology including an indepth interview with descriptive analysis. This study shows that information about disaster management is not optimized, even though the information is needed. A suitable dissemination strategy needs to be developed in order to educate citizens and enhance their awareness in applying smart disaster management technology.
Early mitigation of landslide prone areas with remote sensing and analysis of slope stability in ampera, south jayapura district, papua province
Authors: Widodo B T , Widoanindyawati V , Widodo B
Published: March 2021

Ampera, located in the eastern slope of Cycloop Mountains, Papua Province had a landslide disaster on March 17, 2019. Landslides in Ampera is caused by the steep slope. Landslides occur due to lack of early mitigation which results in material loss and death. Early mitigation was carried out by remote sensing aimed at mapping landslide-prone areas in Ampera. The determination of landslide-prone areas is based on several parameters and weighting of remote sensing. The parameters are based on the provisions made by the author with secondary data. Weighting is used based on the results AHP method. Parameters and weighting using rainfall (44%), slope gradient (31%), NDVI (15%), slope water density (7%), and road density (3%). This parameter is processed into raster data which is then combined with weighting. The results, Ampera has a moderate to high vulnerability for landslides. Three high vulnerability area was made a modeling incision to determine safety factor value for slope stability. Modeling was done using characteristics of Podzolic Soil type, obtained from the Soil Distribution Map of Papua Province. Based on the results of the modeling, the average value of the safety factor of slope stability in three areas with high vulnerability is 0.5 (unstable).
Strategy for community adaptation to flood-prone area in situ rawa besar settlement, depok city
Authors: Puspitasari P , Herdiansyah H
Published: March 2021

Disasters provide damage caused by a series of events that are considered as triggers, and a series of social factors. One of social factor, namely the inability of the community to understand the disaster itself, is an obstacle that must be overcome so that the impact of the disaster will be reduced. Researchers choose the Situ Rawa Besar Settlement as a research site because the area is a densely populated settlement that surrounds the Situ area, which often has a high frequency of flooding during the rainy season. The analytical method used in this study is a quantitative descriptive approach, with surveying and random sampling. The results showed that the Situ Rawa Besar Settlement was inhabited mostly by people with a lower-class economy. For the level of public knowledge about flooding is at a sufficient and good level, with an average value of 58.00. Whereas the community adaptation strategy in the face of flood disasters is at a good level with an average of 33.03, with the most frequently agreed actions, namely maintaining the cleanliness of waterways followed by the need for knowledge about handling floods both before and after.
Evaluation of lahar flood hazard management policy using participatory planning in Putih watershed, Magelang regency, central java, Indonesia
Authors: Permatasari A L , Suherningtyas I A , Wiguna P P K
Published: March 2021

The occurrence of Lahar floods after Merapi Volcano eruption in 2010 still continue to be a concern for the government and the community. Kali Putih is one of the rivers that originates in Merapi Volcano and is one of the Lahar flood hazard area. Non-structural mitigation efforts have been carried out by the government. Until now, there are still community activities in the forbidden hazard area. Regulations regarding to spatial planning regulation in the hazard area need to be evaluated. The aim of the study is to evaluate the Lahar flood hazard mitigation based on participatory mapping and Focus Group Discussions (FGD). The research area is Jumoyo Village, which is the highest Lahar hazard flood area. The results indicate that there are still residential areas and community activities in the Lahar flood hazard area. The community does not want to lose their livelihood or relocation of their homes. The community expect that the government is able to revive the economic activities of the community through the establishment of new economic centres without relocation of their homes. The community also expect that the government able to creating new employment.
Identification analysis of potential object as the basis for the development of karst eco-tourism in western pacitan
Authors: Hertanto H B
Published: March 2021

This study aimed to discover the potency and policy direction of ecotourism object development on the western Karst Area in Western Pacitan. This research used a qualitative descriptive method with the internal and external potential variables of ten ecotourism objects on the Karst Area in Western Pacitan. Sampling technique was done by interviews, field observations, and documentation towards 70 visitors and 20 people of the local community around the ecotourism object, and 30 managers (Department of Culture and Tourism Pacitan district). The results showed that there are three ecotourism objects with a high, average, and low potential combination. Based on the Potency Analysis and policy direction, Srau beach, Cua Gong, and Tabuhan cave tourism objects have the highest potency to be developed using the 3E concept (Ecology, Education, and Economy), local community-based ecotourism development, and interpretation based ecotourism development.
Agricultural drought risk assessment in upper progo watershed using multi-temporal landsat 8 imagery
Authors: Widiyatmoko W , Sudibyakto  , Nurjani E
Published: March 2021

Upper Progo watershed is one of the important agricultural areas in Temanggung Regency, Central Java. This research used the data obtained from Landsat 8 imagery to analyze the agricultural drought risk in the watershed. The hazard was analyzed using multi-temporal data every 16 days (to the Landsat 8’s temporal resolution) during the drought; from May to September 2015 combining the Landsat 8 imagery and the land’s physical condition. An agricultural drought hazard map was then created by summing the hazard class score in every recording time with overlay method. The crop’s vulnerability analyzed using NDVI difference, which indicates the crop’s ability to survive in dry conditions. The crop’s vulnerability was also analyzed every 16 days. A vulnerability map was then created by summing the vulnerability class of every recording time. The assessment of the drought risk was done by multiplying the hazard and the vulnerability scores. The result shows the high and very high classes of agricultural drought risk were located on the west research area which had a high class of hazard and vulnerability. Meanwhile, the moderate, low, and very low classes of agricultural risk were distributed evenly in the center and east area.
Utilisation of remote sensing and geographic information system for compiling of agricultural land resources database in sragen regency
Authors: Utomowati R , Ahmad  , Suryanto
Published: March 2021

Availability of accurate information on agricultural land resources in Indonesia is important. An alternative method is needed to provide agricultural resource information quickly and accurately. The use of remote sensing and Geographic Information Systems (GIS) is expected to be an alternative method as a basis for compiling a database of agricultural information resources, specifically carrying capacity of agricultural land. Availability of a database of carrying capacity of agricultural land is important, to realise sustainable development, spatial planning must be based on environmental carrying capacity. The research objectives are (1). Compile the database for carrying capacity in Sragen Regency (2). Analysing the utilisation of remote sensing and GIS as the basis for compiling a database of carrying capacity for agricultural land in Sragen Regency. The main data source of the research is satellite imagery. Data collection methods used are image interpretation, field observations, interviews, and documentation. The research approach is used spatial description. The results of the study are: (1) The compilation of a database of land carrying capacity of Sragen Regency (2). Remote sensing satellite imagery and GIS can be used as the basis for compiling the database for the carrying capacity of the agricultural land in Sragen Regency.
Utilization of unmanned aerial vehicle photogrammetric technology for analysis of landslide areas
Authors: Ihsan M , Ismail A , Sugandi D
Published: March 2021

The problem of landslides that occur in West Java continues to increase every year, one of the landslides that claimed many lives is a landslide that occurred in Kampung Cimapag, Sukabumi Regency. Changes in land use change and steep topographic conditions are factors that have caused this disaster to occur. This problem will continue if there is no in-depth study related to factors causing landslides. The purpose of this study is to map in detail the topographic conditions of Cimapag Village, so that an analysis of topographic conditions can be carried out and then an analysis of the potential hazards of aftershocks. The problem solving method used in this research is mapping with photogrammetric techniques using a drone vehicle, or Unmanned Aerial Vehicle (UAV) Photogrammetry. The results of this study are orthophoto maps with a spatial resolution of 8.11 cm, and produce several products such as orthophoto maps, three-dimensional models, and Digital Elevation Models. Based on the measurement of the slope of the landslide, the value of the slope is 51.78% with the condition of the slope which is not covered by vegetation. These conditions can potentially occur aftershocks.
The internet of things (iot) for flood disaster early warning in dki jakarta: prospect and community preparedness
Authors: Wicaksono A , Herdiansyah H
Published: March 2021

Flooding is the most frequent disaster in the last ten years in Jakarta and has occurred since the colonial era. Jakarta’s geographical location is partly below sea level, and its dense population causes Jakarta’s vulnerability increases. The study aims to determine the potential of use and development of IoT in flood disaster mitigation systems as an early warning to the public through cell phones, that have become the needs of the urban community to reduce material and non-material losses. This study uses data elaboration methods, using secondary data from the Central Statistics Agency (BPS) on the Information and Communication Technology Development Index (ICT Development Index) published in 2018, survey data from the Indonesian Internet Service Providers Association (APJII) on internet user profiles in Indonesia published in 2015. The results of this study indicate that internet penetration reaches up to 56%, the highest compared to other regions in Indonesia. The ICT Development Index shows that DKI Jakarta is the highest ICT Development Index, with 7.41 out of 10. It indicates that IoT based on flood disaster mitigation has the potential to be applied in DKI Jakarta.
Survival of urban people: lesson learn from kampung pahandut people, palangkaraya city
Authors: Hamidah N , Santoso M
Published: March 2021

The sustainability development is current issue in Indonesia. This research related to sustainability development that is focuses on how survival of urban people. Most of settlement in urban area occupied by urban people with location close to the river. River is a main living orientation of urban settlement for transportation, and daily needed. The riverside area is a first settlement of people before a city grow rapidly with million houses. It proved that urban settlement give many contribution in a city development. The objective of this research is to identify how urban people survival to contribute for city development. The location of research is old Kampung namely Kampung Pahandut closed to Kahayan riverside area, Palangkaraya City, Central Kalimantan Province, Indonesia. Research method used qualitative method based on three phase: preparation, field observation, post field observation. The output of research is a descriptive analysis by key person interview of urban people living in Kampung Pahandut. Three aspects have been analysed by physical, economic, and social aspects of urban people survival in Kampung Pahandut, Palangkaraya City. The research found that urban people can stable living in urban settlement of city center due to three aspects (physical, economic, and social aspects).
Deviant behaviour in the slum community of Palembang city
Authors: Sukmaniar  , Pitoyo A J , Kurniawan A
Published: March 2021

This research aims to describe the phenomenon of social deviation of slum dwellers in the city of Palembang. The research method is a qualitative phenomenological method for 64 informants living in slums and five key informants who came from the related field. The data analysis technique is done through three stages, namely data reduction, data display, and conclusion. The research results show the number of juvenile delinquency, including drugs, breathing hard glue and losing consciousness, getting drunk, fighting, and so on. Adults mostly do thuggery. Factors that trigger thuggery include difficulties in getting a job, low education, and poverty. Environmental events also occur in the slum community.
Potential development strategy of Gumeng tourism village, Jenawi District, Karanganyar Regency
Authors: Kuninggar M D , Muryani C , Yusup Y
Published: March 2021

This study aims to determine the development strategy of Gumeng Tourism Village, Jenawi District, Karanganyar Regency. Data collection was conducted through field observations, documentation, and interviews with stakeholders, and tourists in the Gumeng Tourism Village Area. Data analysis used qualitative descriptive analysis and SWOT accompanied by analysis of tourism development 6A attractions, activity, accessibility, amenities (basic facilities and infrastructure), ancillary services and available packages available tour packages as props) as supporting data. The result of this study indicates that the potential of tourism objects contains of 3 tourist objects including highly potential class, possibly potential class and less potential class. Based on the SWOT analysis, the strategy in managing Gumeng Tourism Village includes: 1) Creating Regional Regulations on Tourism Village Management by Regional Government. 2) Creating a grand design of tourism village development by the government. 3) Mapping of village potential and development of tourism villages based on the tourism cluster model and village potential base. 4) Increasing the use of information technology by utilizing social media for promotion. 5) Collaborating between Tourism Awareness Group and the travel bureau owners. 6) Improving the quality of training and coaching with constant training for tourism agents in Gumeng Village.
Analysis of dissolved carbon sequestration potentials at several springs in karst landscape, wonogiri regency
Authors: Wijayanti P
Published: March 2021

This study aimed to analyze the potential of dissolved carbon sequestration in several springs distributed over the Wonogiri Karst area – a carbon sink. It employed a survey method and collected momentary data at eight sampled springs. The main parameters were calcium, alkalinity, and discharge. The springs varied in discharge, ranging from 1 L/s to 140 L/s, and were found into two classes, namely class 3 and class 5. These springs showed the characteristics of perennial flows. The alkalinity and calcium content was distributed almost uniformly, except for Nampu Spring that had small levels in both parameters. The potentials of dissolved carbon sequestration in the eight springs varied between 4.3 x 108 and 9.3 x 109 mg/year, with the smallest level found in Nampu Spring and the largest one in Kakap Spring.
Water conservation based on local wisdom in Cikondang traditional village community
Authors: Hasanah S , Yani A , Setiawan I
Published: March 2021

The purpose of this study was to analyze the role of local wisdom on water conservation in Cikondang traditional village community. This study use qualitative-descriptive analytical methods, data collection using observation, interview, and documentation techniques. Primary data is obtained from the results of in-depth interviews with informants selected purposively, while secondary data is obtained from local government documents and related institutions, as well as from articles that are in accordance with this study. The data is then analyzed through the stages of data reduction, data presentation, and drawing conclusions. The results of this study indicate that with the ritual of water that routinely carried out every year and followed by the traditional village community of Cikondang can provide knowledge of the importance of preserving water sources, communities with high awareness participate in maintaining the water source area . There is also the concept of prohibited forest, where with certain rules the community cannot freely enter the forest, this is one of the local wisdom that can protect the environment, especially the availability of water. The implication of this research is local wisdom needs to be conveyed to future generations because it is quite effective in water conservation efforts.