bluuebunny/crossref_metadata_2025_split huggingface dataset:
The existence of multi-story buildings to reduce tsunami effects in the city of Padang, West Sumatra
Authors: Daoed D , Junaidi A , Sunaryo  , Hendra S , Irawan B B 
Published: April 2021

Abstract
The need for space for shelter as well as the place of business is always increasing in urban areas. To provide enough space, it is usually done vertically. The building becomes two or more stories high. This building grows along the highway and on the beach, for cities that are on the coast. Seawalls or dams are usually used to protect the driving force of the waves to shore and their construction is massive. But building prices are very expensive. However, the existence of multi-story buildings can also reduce and protect coastal areas against tsunami waves. However, not many researchers have examined this case by physically modeling it in the existing conditions. Based on that experiment research is conducted by imitating the real condition of the location of the affected waves. Simulations are carried out using models. The multi-story building model is made from styrofoam which is placed on the location map from satellite imagery. Then observed the effect of inundation and current propagation by generating waves. A single wave is generated by adjusting the height of the fall and the volume of water from the tank to the test object. The simulation results show a reduction in current propagation length and puddle depth of about 40%. The decrease in water depth is better as the floor of the building increases. As a recommendation, the multi-story building effect can help the community in determining the route and length of time for evacuation from the start of the incident to a safe place.
Optimum height of the retaining gravity wall
Authors: Bari F , Repadi J A , Ismail F A , riani  , Hakam A 
Published: April 2021

Abstract
Many failure cases of retaining walls caused by some factors, which are soil condition, planning design that did not meet the safety requirements, and the lack of knowledge or indecisiveness towards the selection of the retaining walls type for a specified height. In this research, the optimum height of a retaining wall of gravity wall type for sandy soil was planned. The research methodology was done by calculating external and internal stability from a stone gravity retaining wall. From the external stability analysis of 4 - 14 meters heights, it is known that the retaining wall still safe. The internal stability analysis obtained from 8 meters heights did not meet the safety requirements. Therefore, it is recommended from the research to use the height of 7 meters for the stone gravity retaining wall. The optimum height of retaining wall is planned in this research as the guidelines for engineers in planning the right retaining wall for the height as planned.
The analysis of correlation between Regime’s River coefficient and runoff coefficient (Case study in catchment areas of sidutan and reak)
Authors: Salehudin L , Wirahman W , Hasyim  , Rohani  
Published: April 2021

Abstract
The Sidutan and Reak Watersheds have 37.77 km2 and 23.66 km2 basin areas, both of which are still protected forests. Along with the increase in human activities, the community’s raw water needs in both watersheds can also influence the magnitude of the infiltration rate and runoff, where infiltration and runoff coefficient will affect the River Regime Coefficient (RRC). River Regime Coefficient is the magnitude of the ratio between the maximum and minimum daily discharge in a year in the river. Whereas to get runoff coefficient every year a single hydrograph and rain per hour are needed in a year. The relationship between river regime coefficients and runoff coefficients can produce a correlation equation is a linear equation. In the analysis, the runoff coefficient value in the following year in each river channel is enough to replace the value of the river regime coefficient with a linear equation. The analysis shows that the value of the River Regime Coefficient (RRC) with Runoff Coefficient in the Sidutan Watershed yields the equation Y = -2E-05x2 + 0.0048x -0.0539 with a coefficient of determination R2 = 0.6796. River Regime Coefficient (RRC) values obtained from 2011 to 2016 were 67.69; 43.99; 188.92; 53.78; 45.01 where the value is included in the low and too high classification range. The results of the analysis indicate the watershed is in bad condition. From the analysis of runoff coefficient (C) each watershed is 0.188; 0.101; 0.229; 0.163; 0.148, shows that the level of runoff coefficient (C) of the watershed is still in good condition. From the results of the analysis of the River Regime for the Reak River Basin, the equation Y = 0.0003x2 - 0.011x + 0.1618 with a coefficient of determination R2 = 0.7855. Where the RRC Value obtained in 2011 until 2016 respectively 27.46; 29.80; 31.06; 16.96; 14,11. The results of the analysis are included in the very low classification range and to a low degree. From the results of the analysis, the Reak River Basin is still in good condition.
Application of porous concrete to resolveflood on the roads
Authors: Utomo A B , Hidayatiningrum L F , Dhanardono B 
Published: April 2021

Abstract
In the rainy season, many cases of roads being submerged in water because of a lack of drainage capacity and low water absorption by the subgrade. This study utilizes porous pavement as an interlocking pavement to increase water absorption to the drainage layer and subgrade. Porous concrete is made from cement mixture : coarse aggregate = 1:6 with w/c ratio 0,4. The results showed the value of specific gravity, water absorption, compressive strength, and Na2SO4 resistance respectively 1.703 gr/cm3, 2.57%, 10.8 MPa, and 0.79%. To see the level of serviceability, no fine interlocking pavement is arranged above the drainage layer and the levelling layer, and then a trajectory and inundation test is performed. The result of inundation and track tests shows that the construction can pass water to subgrade without inundation and can withstand the wheel loader that is equivalent to 13000 kg so that it can be used for sidewalks, park lanes, and pavement with a maximum axle load of 8 tons.
A comparative study on bridge road works methods for flood tide management in Agats-Suator project
Authors: Dermawan H , Palamba W , Sebayang E 
Published: April 2021

Abstract
Currently, flood tide affects the accessibility of Agats-Suator Bridge Road. Therefore, local governments are making efforts to improve its infrastructure, one of which is in the bridge road construction previously used wood conventionally replaced with better concrete. This study examines the Agats-Suator Bridge Road Project, Asmat, Papua that compares the precast concrete system and conventional concrete system for flood tide management, in which workers were employed and materials were purchased from Surabaya. The purpose of this research is to calculate efficient scheduling conditions with a limited workforce on conventional and precast concrete implementation systems. The research method used in this research is a non-experimental quantitative method with comparative studies. Human resource allocation makes the workers scheduling more efficient by applying the principle of limited resource allocation. The research results show that the precast concrete system reach ideal conditions at rmax = 30 people with 18 weeks duration. Meanwhile, conventional concrete systems reaches ideal conditions at rmax = 89 people with 22 weeks duration. The result of resource allocation suggests that implementing a precast concrete system is more effective than implementing a conventional concrete system. The results of this study also function as a reference in selecting the concrete construction implementation systems for flood tide management in Agats-Suator Bridge Road Project.
Analysis of pedestrian crossing needs in the transmart shopping center area in Padang City
Authors: Irawan B B , Fitrahand D I S Rahmadani R A 
Published: April 2021

Abstract
Pedestrians are an important form of transportation in urban areas. The unavailability of pedestrian facilities will have an impact on the risk of traffic accidents and traffic delays. The Khatib Sulaiman road section in the city of Padang has land uses such as settlements, offices, hotels, trade and services. These conditions affect traffic conditions, especially for pedestrians. The purpose of this study is to calculate the potential number of pedestrians in the Transmart area and the selection of locations and types of pedestrian facilities. Pedestrian facility planning uses the Pedestrian Facility Technical Planning Guide (Pd 03-2017-B: 02 / SE / M / 2018: February 26, 2018). The pedestrian crossing survey results on the Khatib Sulaiman road on Saturday and Sunday (30-31 March 2019 at 14.00-18.00 WIB) obtained pedestrians who crossed an average of 278.25 people / hour. The recommended crossing facility is the People Crossing Bridge (JPO). The recommended pedestrian crossing bridge location is Point B with weight value 2.45 and coordinates 0° 54‘44”, 100° 21‘27”).
Traffic management at landslide disaster in West Sumatera and its impact to passenger and drivers
Authors: Purnawan  , Khairah M 
Published: April 2021

Abstract
West Sumatra is one of Indonesia province that always experiences landslides during the rainy season. Based on data from BNPB, in the last 10 years, 166 landslides have occurred in West Sumatra. The landslide materials covers partially and even the entire road wide, so it interferes the traffic flow activities in the lane. This study aims to identify traffic management that is carried out in the landslide disaster zone, the impacts arising from landslides are identified. The study was conducted by exploring the experiences of drivers and passengers when using vehicles in the West Sumatra. Structured questionnaires were created and distributed online and directly to respondents. From the results of data analysis, it was obtained that landslide most often occurred in the Padang-Solok road at Sitinjau Lauik region and in Padang-Padang Pariaman road at Silaiang region. These two routes have high traffic flow. Majority of landslide materials are soil, it causes traffic congestion. Traffic management by opening and closing oneway roads is a type that is mostly conducted to reduce traffic congestion, this activity is carried out by the police and the people around the location. The most impact that experienced by driver and passenger during waiting for cleaning the landslide material were tired and loss ot time.
An information management system for effective disaster relief operations
Authors: Patrisina R , Meilani D , Habib M 
Published: April 2021

Abstract
During an emergency situation, there is often confusion in information that can complicate disaster management efforts. For this reason, it is necessary to design an information system that can support emergency response operations. The purpose of designing this information system is to design a disaster management information system to strengthen emergency response operations quickly, precisely, and dynamically, and can be a decision supporter to facilitate emergency response operations. The system was developed using the waterfall method using the Object-Oriented Programming (OOP) approach. The design of information systems uses the PHP programming language and uses MySQL as a database. Then the system that has been designed is verified and validated using the Black Box method. The results of the information system design can provide dynamically needed information so that it can assist in scheduling and allocating volunteers, verifying data from donors, making TRC reports, collecting data and refugee needs, and estimating the distance between posts and evacuation sites
Potential environment and socio-economic impact of biofuel production in Malaysia: a preliminary review
Authors: Mohan D , Essam Yusuf , Katman H Y B , Ahmed A N , Shamsuddin A H 
Published: April 2021

Abstract
Malaysia is the second-biggest palm oil producer worldwide. Roughly 5.9 million hectares of area is planted with oil palm in Malaysia as recorded in 2019, making the palm oil industry one of the main income-generating industries for the country’s economy. As the palm oil industry in Malaysia grows, concern has been raised as several environmental and socio-economic issues are linked with the expansion of oil palm cultivation. The findings of this research contributes towards the preliminary investigation on the effect of biofuel demand in Malaysia on potential deforestation, greenhouse gas emissions due to land use changes and water pollution due to palm oil mill effluent (POME); and the effect of biofuel demand in Malaysia on other types of crops.
Study on robustness of rebound hammer and ultrasonic pulse velocity measurement in several concrete damage levels
Authors: Kencanawati N N , Akmaluddin  , Marlitasari R , Paedullah G 
Published: April 2021

AbstractThe results of reading the rebound number in a hammer test and velocity in an ultrasonic pulse velocity (UPV) test are usually associated with concrete compressive strength. A correlation or regression is provided to convert those parameters. However, several factors can influence this correlation. One of them is the level of concrete damage. The purpose of this study is to look at the robustness of hammer and UPV reading data in various concrete damage conditions. Experiments were carried out by testing three groups of concrete strength: 25, 35, and 45 MPa. All the concrete was tested using the UPV and rebound hammer test. The damage was determined as concrete which has decreased compressive strength by 30% (low), 50% (medium), and 80% (high) of the initial strength. The initial strength was the maximum compressive strength on each concrete group which was determined by compression testing. The rebound hammer data shows the correlation results that are almost the same as the correlation provided by the manufactures for concrete without damage and slight damage. But this is not the case with medium and highly damaged concrete, showing the results of the highly distorted correlation. The greater the level of damage, the greater the deviation. For concrete which damage level up to 80%, there is a deviation ratio of up to 3.6 times compared to the correlation value provided by the tool. Furthermore, the reading of UPV has a constant correlation without being affected by damaged concrete conditions up to the velocity of 3500 m/s. Thus, in a rapid assessment of the strength and safety of existing concrete structures, the robustness of a hammer test implements in concrete with sound and slight damage, but for concrete with beyond of elastic damage conditions, it must be accompanied by other tools such as UPV or sampling core.
Evaluation of mechanical and structural properties on the degradation of treated and untreated coir, jute and kenaf nettings
Authors: Anggraini V , Syamsir A , Mubin S M , Sofan A M H , Melasari J , Nasmirayanti R 
Published: April 2021

Abstract
Most of the soils in Malaysia are arid and infertile due to lack of buffering capacity and low clay activities that resulted in soil acidity. Moreover, high intensity rainfall and extreme conditions of slopes such as transient drought and lack of nutrients have reduced the survival and growth of potential plants. The use of vegetation and their relationship with microbes have great potential to alleviate soil acidity and erosion problems. The application of natural fibers in the construction industry was highly used as an additional or alternative source to be used in composites for increasing its strength properties. Natural fibers can innovative solutions to solve difficult problems, economically, enables the use of local materials means that natural fibers can be sustainable solutions. This paper consists of the technical results on the testing conducted to determine the strength of coir, jute and kenaf fibers. The objectives of this re-search are to manifest the effectiveness of new treatment on natural fibers netting to reduce degradability of the natural fiber netting to be used in acidic soils in Malaysia, to pick out the best chemical treatment for natural fibers to select the best natural fibers for rainfall area. The fibers have been treated by Sodium Hydroxide (NaOH) and Calcium Chloride (CaCl2). Six natural fiber nets have been provided with the size of each net is 500mm x 500mm (50cm x 50cm) and the spacing between the lines of the net is 17.5mm (1.75cm). Three nets are treated and the others are not treated. The nets have been placed on a slope at the site for 30 days and 60 days. The lab test that has been conducted is more focused on the strength properties of the coir, jute and kenaf fibers in terms of Tensile Strength. It has been found that treated fiber showed better performance than untreated fibers. The strength of fibers has been decreased respectively from 1st day on site to 60th day affected by climate changes.
Analysis of suspension bridge response due to earthquake under different soil conditions
Authors: Masrilayanti  , Jamil A , Rahmadona  , Annisa L , Kumalasari P 
Published: April 2021

Abstract
A suspension bridge is a long span bridge that has the advantage of the possibility of not having a pillar in the middle and using cables as the primary load bearer. Due to its long spans, the analysis of the bridge should be treated very carefully, especially under an earthquake. The earthquake that occurs will cause ground movement to affect the performance of the bridge structure. Furthermore, various soil conditions will also cause the existence of the bridge structure to experience differences. In this study, a super long-span suspension bridge is analyzed under different soil conditions. It is assumed that each support of the bridge is on the same ground condition and has a uniform ground movement. The bridge is then analyzed relating to the response of the bridge structure due to a uniform earthquake in the form of internal forces and displacement both in terms of static and dynamic analysis. Results show that soft soil induces a more massive internal forces response structure compared to hard soil.
Beyond the tsunami effect: Towards an understanding of the special autonomy budget policy in reducing poverty in Aceh
Authors: Yuliandri  , Kabullah M I , Fahmi K , Amsari F , Fajri M N 
Published: April 2021

Abstract
Aceh still struggling to reduce poverty after the tsunami disaster in 2004. Aceh was the 6 out of 34 provinces on the poverty problem in Indonesia in 2019. Although there area huge amount of special autonomy funds as asymmetric decentralization consequences, Aceh could not against poverty of the Acehnese people. This study attempt to explore the special autonomy budget policy by the Aceh government in the poverty reduction agenda after tsunami effect. The study used mixed legal study with a case study approach in the Aceh Provincial Government in 2019. The findings reveal that there are several factors of the low effectiveness of special autonomy funds in reducing poverty in Aceh, i.e. natural disasters, miss management of special autonomy funds, weak planning, absence of supervision, and inefficient local bureaucracy. In that sense, the Aceh government needs more policy reforms and institutional modernity to reduce poverty and promote opportunity for poor people.
Geospatial analysis for developing agriculture of marshlands to support regional food security in the era of pandemic Covid-19 in HST Regency, Kalimantan Selatan
Authors: Sutisna S , Sa’dianoor  , Maarif S , Bohari J A 
Published: April 2021

Abstract
Hulu Sungai Tengah (HST) Regency has a very large marshland in the South Kalimantan Province. Since 2019 HST is promoted to be a model for Indonesian local foods and agricultural development program, known as SERASI Program. SERASI stands for “Selamatkan Rawa dan Sejahterakan Petani” (or in English “save marshland and bring prosper to farmers”) that aimed to exploit marshland which was not productive yet. The SERASI will convert a non-productive caved swamp areas to a productive rice fields which able to support regional food security sustainably. In order to able define the suitable marshland area for SERASI Program in HST Regency precisely in the era of pandemic Covid-19, this research had been carried out by applying geospatial analyses method using Sentinel Satellite Imageries acquisitioned from two different epochs, i.e. of 20th February 2019 and of 20th February 2020. GPS coordinates collected from the field were used for ground truthing imagery data. The results of geospatial analysis have provided evident that paddy fields in caved marshland area is increased that means the SERASI Program is successful. From interviews’ data collected from 14 villages shows that the program of SERASI is accepted by local farmers and also local government. From image combination analysis concluded that the area of caved rice fields is suitable for developing agriculture in marshlands.
The role of communication as the disaster risk reduction in Indonesia capital city transference policy
Authors: Khumairoh Z , Widana IDK K , Sumantri S H 
Published: April 2021

Abstract
Disaster can not be avoided, but the risk of disasters is able to be diminished through mitigation. Mitigation in the form of discussion and communication becoming an instrument of society in facing the matters of life. This study describes the role of government in preventing to face the hazard potentials and disaster mitigations, such as natural hazards, disasters and conflicts through the effective communication. This study applied a descriptive qualitative approach through forum discussion group method and literature study. The informants in this study are the stakeholders of government organizations those are the experts of disasters, such as BNPB, BMKG, KLH and the academics. The theories in this study are the theory of communication and disaster mitigation focusing on the effective communication for enhancing the disaster risk reduction related to Indonesia capital city transference plans in Kalimantan. The result of this study shows that the role of disaster communication can help the government giving and socializing the information to the society in order to support the successful of disaster risk reductions.
The Impact of the COVID-19 Pandemic on Social Life Women Workers
Authors: Bangun E , Widana IDK K 
Published: April 2021

Abstract
COVID-19 gives a significant impact on female workers. Their rights that have been marginalized have been increasingly degraded during the PSBB (large-scale social restrictions). It becomes a double impact, socially or economically, because female workers as housewives are forced to bear the burden of families, and at the same time they have to be a mother to teach their children because of school-from-home programme. Some of them experience a more severe impact that the husband who loses his job, which means that the wife takes over the burden of the whole family. However, society (especially women) has social capital that is able to help them economically and psychologically in continuing their activities during pandemic. Using qualitative methods and social capital theory, we find that the existence of social gatherings of women can support their economy, or simply sharing with their friends has a direct impact on women’s mental health.