Location Points Research Articles

Implementation of Location Based Service Method in Design of Housing Location Search Applications in The City of Bengkulu

The increase in the number of residents in the city of Bengkulu, in line with the increase in the number of housing being built. The community is conducting a housing search based on information from newspapers and the local community. This is of course especially difficult. For people who come from outside the city of Bengkulu. To overcome this, a housing location search application in Bengkulu City was designed. The designed application can run both on websites and smartphones. This application implements Location Based Service and Google Maps API so that it can display a digital map of Bengkulu City which is equipped with residential location points. If the location point is clicked, the application will display detailed information about the housing.

Distribution Pattern of Artisan Gastronomy Tourism Location in Bandung City

The artisan gastronomy tourism sector has the potential to attract and support tourism in the city. This research aims to analyze the distribution pattern of famous eating places in the City and analyze the characteristics of tourists in attracting tourism in Surakarta City. The method applied in this research is descriptive qualitative approach, using primary and secondary data. The sampling technique used is non probability sampling with purposive sampling type. The results of data analysis show that the pattern of distribution of eating places in Bandung City is in groups, with location points scattered around the sate building, as well as adjacent to economic centers, cultural tourism centers, and other centers. Characteristics and attractiveness. Bandung has an influence as a tourism developer that attracts tourists, influenced by technological developments, easy accessibility, and a variety of specialties. In terms of the level of interest in artisan gastronomy places in Bandung, tourists are of the opinionthat artisan gastronomy products in this city are attractive

The biological and ecological impact of the ship grounding and ore nickel spill of the barge ship in Morowali Waters, Central Sulawesi, Indonesia

This study’s purpose is to know the condition of corals in locations that are under pressure due to high sedimentation and coral damage due to ship aground. The research was carried out in August 2021 by collecting data related to the coral reef’s condition. The method used the Underwater Photo Transect (UPT) at 2 location points as controls which were assumed not to be affected by the ship aground and 2 location points where the ship ran aground. The study was successful to obtain data on the affected corals on the BG Financia 22 ship at 13.13%, while at the control location, live coral cover was obtained by 17.16%, grouped in very damaged condition. Observations on the BG Intan Kelana 3 ship from a total observation area of 127,600 cm2, obtained a live coral cover of 24.70%, this condition is grouped in very damaged coral conditions. Types of coral were found in 17 genera from 247 colonies observed during the study. Coverage at affected locations is 4.20%. Observations in this study can be concluded at the location where the condition of the coral is very damaged plus the pressure due to the ship aground, thus worsening conditions in the area.

Data-driven fault location approach in AC/DC microgrids based on fault voltage and current differences

In recent years, various fault location techniques for microgrids have been presented. Some of these methods estimate the distance or section of the fault by assuming the availability of data from all measuring nodes, which is not economically viable. Moreover, the accuracy of these techniques is sensitive to the type of sources, fault location, resistance, inception angle, and they require accurate line models and enormous data banks. The prominent disadvantage of these methods is their performance for DC or AC networks separately. This article suggests a method to estimate both the distance of the fault and faulty section in a hybrid microgrid (DC/AC) using the π line model. This method begins by analyzing the voltages and currents of all buses based on the data collected at the points of common coupling and DG locations. Then, by analyzing the voltage and current difference at the buses of each branch, the fault location is determined. The proposed approach does not require DG models and needs a quarter of the data cycle. A 15-node hybrid microgrid is implemented in MATLAB, and a 7-node AC microgrid is implemented in the power systems simulator to evaluate the suggested technique. The results confirm the insensitivity of this approach to the different fault types, locations, inception angles, inductances, high impedance fault (500 Ω), DG operating conditions, and line parameters. In addition, the proposed algorithm is investigated by considering the measurement error. The results show the suitable accuracy of this scheme compared to other similar methods.

Identification of Geothermal System Structure Based on Derivative Analysis and 3D Model of Gravity Satellite Data of Mount Rajabasa Area, South Lampung

Indonesia has the second largest geothermal potential with 40% (24 GigaWatt) or 331 points of geothermal reserve locations, this is because Indonesia is traversed by the ring of fire so there are many volcanoes in Indonesia. One of the areas is the Rajabasa Mountain, located in the south of Lampung Regency, with the manifestation of thermal springs and fumaroles. This study aims to provide information related to the existence of geothermal potential using the gravity method, find out the subsurface structure using the First Horizontal Derivative (FHD), Second Vertical Derivative (SVD) methods and conduct 3D modelling. Based on the FHD and SVD analysis, four faults controlling the geothermal system were obtained, distributed in the Northwest – Southeast direction in the form of shear faults, and North-South in the form of normal faults with high anomaly values on residual maps of suspected lava rock intrusions. The 3D modelling results obtained indicate the presence of clay rock which is assumed to be caprock with a density of 2.5 – 2.58 gr/cc at a depth of up to ± 1500 m, and andesite rock which is suspected to be a reservoir with a density of 2.64 – 2.7 gr/cc at a depth of 750 – 2000 m.

Water Quality Measurements with TSS, TDS, Total Phosphate, Nitrate, Total Coliform Parameters in the Garang Water Shed

Massive industrial and urban development can cause changes in the quality of river water, one of which is the Garang Watershed, located in Central Java Province. This river is situated in Kendal Regency (upper and middle) and Semarang City (middle and lower). This research examined the Garang River's water quality conditions, divided into four sub-basins: Garang Hilir, Garang Hulu, Kreo and Kripik. The parameter assessed in this research is TSS, TDS, Total Phosphate, Nitrate, and Total Coliform Parameters with a total of ten sampling location points were determined based on several criteria using GPS and the SNI 6989.57:2008 sampling method. TSS and TDS concentrations in March-April were observed to be high, especially at sampling point 10. In contrast, total phosphate concentrations were elevated at sampling points 2, 3, and 9; Nitrate values were observed to be high at sampling point 3 in March and sampling point 5 in April; Total coliforms were high at sampling points 1, 3, and 4, all of these is possibly due to domestic waste and the use of fertilizer by agricultural activities. This sampling quality assessment shows a close relationship between human activities and agricultural activities in river water quality, especially in the Garang River.

Adaptasi Nuansa Lokal pada Proses Perancangan Bangunan Komersial di Bali

Title: The Adaptation of Local Architecture in the Commercial Building Design Process in Bali
 The local Balinese architecture is still being developed and maintained simultaneously in Bali, incorporating elements of history and space. Over time, modernization has impacted the existence of local Balinese architecture in its manifestation. The local government responded to the act of preserving culture by establishing a Bali Regional Regulation, which regulates the design of architectural buildings with local Balinese nuances. The existence of this culture has become the main attraction in Bali, and it requires support from the spaces or commercial buildings. Therefore, the image of commercial buildings is regarded as a manifestation of the existence of local Balinese architectural culture. This paper focuses on the building's appearance, with two object location points as the case study to determine how to adapt local nuances to different typologies, namely Pahdi Coffee Kintamani and Benoa Beach Club, as objects that can illustrate the process of design acculturation. The research evaluated the design against existing benchmarks to obtain the adaptation process used in commercial building design. The method used was qualitative descriptive. As a result, the design of Pahdi Coffee Kintamani and Benoa Beach Club can fit with the function needed and adapt the local Balinese architecture through the appropriate process.

Dynamic voltage restorer quality improvement analysis using particle swarm optimization and artificial neural networks for voltage sag mitigation

Power quality is one of the problems in power systems, caused by increased nonlinear loads and short circuit faults. Short circuits often occur in power systems and generally cause voltage sags that can damage sensitive loads. Dynamic voltage restorer (DVR) is an efficient and flexible solution for overcoming voltage sag problems. The control system on the DVR plays an important role in improving the quality of voltage injection applied to the network. DVR control systems based on particle swarm optimization (PSO) and artificial neural networks (ANN) were proposed in this study to assess better controllers applied to DVRs. In this study, a simulation of voltage sag due to a 3-phase short-circuit fault was carried out based on a load of 70% of the total load and a fault location point of 75% of the feeder’s length. The simulation was carried out on the SB 02 Sibolga feeder. Modeling and simulation results are carried out with MATLAB-Simulink. The simulation results show that DVR-PSO and DVR-ANN successfully recover voltage sag by supplying voltage at each phase. Based on the results of the analysis shows that DVR-ANN outperforms DVR-PSO in quality and voltage injection into the network.

Crack Propagation Analysis of Fatigue Due to External Corrosion on the Construction of the Ferris Wheel in Alun-Alun Kota Batu

Ferris wheel is the main structure of the form from steel structure; its strength is directly related to the safety of passengers. The risk of failure due to fatigue occurs in the support pipe rods due to defects with external corrosion and cracks due to stress concentrations. Checking the crack indication at the defect point is carried out using the Liquid Penetrant Test method. Based on the inspection results, crack indications occurred at four defect location points. From the stress calculation, the value of the stress intensity factor is obtained at 4.52 Mpa√m, which still meets the fracture toughness value of 69.19 Mpa√m, from the results of the calculation of fatigue analysis, namely in the form of fatigue life at the defect location at each crack point. The structure's life span in the most resounding crack is six years, according to the minimum allowable thickness of DNV RP F01, which is 70% of its thickness. Cracks will continue to spread to structural defects with corrosion. The risk of failure will continue to increase; even total loss of the structure will undoubtedly occur if it has passed its operational design period and will be faster with dynamic loads.

SISTEM INFORMASI GEOGRAFIS PASAR TRADISIONAL DI KABUPATEN KERINCI

Geographic Information System (GIS) is a system that is made quite interactive and can integrate spatial data, this technology system technology can allow information about the distribution of traditional and modern markets in Kerinci district. The existence of a market in an area is able to improve the economy and regional income. in Kerinci regency there are many traditional markets spread across several sub-districts in Kerinci regency. Currently, information about the location of traditional markets is still very little and not much information about the market is presented in the form of digital maps, because of that, researchers aim to design and build a web-based Geographic Information System (GIS) application that can provide information about the location point of the nearest traditional market in Kerinci Regency. In this Traditional Market Geographic Information System (GIS) research, researchers used Qualitative methods with a Descriptive approach, descriptive research aims to make descriptive systematic, factual and accurate about the facts in a particular area with waterfall modeling as a Geographic Information system development methodology.

Molecular dynamics of JUNO-IZUMO1 complexation suggests biologically relevant mechanisms in fertilization

JUNO-IZUMO1 binding is the first known physical link created between the sperm and egg membranes in fertilization, however, how this initiates sperm-egg fusion remains elusive. As advanced structural insights will help to combat the infertility crisis, or advance fertility control, we employed all-atom Molecular Dynamics (MD) to derive dynamic structural insights that are difficult to obtain experimentally. We found that the hydrated JUNO-IZUMO1 interface is composed of a large set of short-lived non-covalent interactions. The contact interface is destabilized by strategically located point mutations, as well as by Zn2+ ions, which shift IZUMO1 into the non-binding “boomerang” conformation. We hypothesize that the latter might explain how the transient zinc spark, as released after sperm entry into the oocyte, might contribute to block polyspermy. To address a second mystery, we performed another set of simulations, as it was previously suggested that JUNO in solution is unable to bind to folate despite it belonging to the folate receptor family. MD now suggests that JUNO complexation with IZUMO1 opens up the binding pocket thereby enabling folate insertion. Our MD simulations thus provide crucial new hypotheses how the dynamics of the JUNO-IZUMO1 complex upon solvation might regulate fertility.

Selection of Industrial Sites Using a Web-Based Geographical Information System to Minimize Risks: A Case Study in West Java, Indonesia

The efficient selection of a perfect site for the development of an industrial site in spatial planning should consider the land condition and environmental factors to minimize the impacts and risks. This paper aimed to create a model to assess if an area that can be used for the development of an industrial site meets multiple criteria. The new method in this research integrates the GIS and AHP approaches into a web-based geographic information system application that is used to easily support widespread assessment and mapping. The assessment of the development potential of industrial areas in West Java Province showed that 77% of the land was appropriate for industrial sites, whereas the other 33% was less suitable for use as an industrial site location. The assessment of 23 industrial site development location points in the Industrial Site Spatial Plan of West Java Province showed that 14 locations were in the highly suitable category (P1) and 9 other locations were in the suitable category (P2).

Evaluation of Photovoltaic Penetration on System Grid with Minimum Loading Approach

The Indonesian government has also set a target to increase the contribution of renewable energy in the national energy mix to 23% by 2025 and 31% by 2050. In this paper, an analysis of Maximum PV Capacity was used on the transmission network with a minimum loading approach using the Power Factory15.1 simulation. From the simulation that has been done, it can be seen that the placement of two PV location points gets better results than the placement of one PV location point. This can be seen that the feeder load for PV location point of 74.3%, while for two PV location points of 35.8% which value is still within safe limits, but for two PV location points get better results. PV trip state frequency values obtained for single location point and two PV location points get a result of 2% of 50 Hz which is still within safe limits.

MAPPING OF EVACUATION PATHS AND SOCIALIZATION OF DISASTER MITIGATION IN TOURISM AREAS: EDU WISATA LONTAR SEWU, GRESIK REGENCY

Background: Indonesia is a country that is rich in various tourism potentials. Tourist destinations in Indonesia have spread not only in big cities, but also in districts and even villages that have the potential for promising tourist sites. Gresik Regency is one of the regencies with lontar sewu tourist destinations that are quite interesting to visit. The number of emerging tourist destinations in various regions makes the manager consider the safety aspects of visitors and employees working at tourist sites. Therefore, tourism managers need to develop contingency plans and mitigation measures to improve preparedness and reduce the adverse impacts of disasters. Purpose: This service activity aims to map evacuation routes and educate employees at tourist sites with disaster mitigation socialization activities related to knowledge and awareness of disasters and a simulation of disaster occurrences in Gresik Regency tourism, namely Edu Wisata Lontar Sewu, Hendrosari Village, Menganti District. Methods: The method of activities carried out is divided into 3 main stages, namely 1) the planning stage starting from exploring partner problems, reviewing the program target areas, preparing proposals, mapping evacuation route points at tourist sites; 2) the implementation stage consists of the location mapping stage, Focus Group Discussion (FGD), visualization stage, installation stage and socialization activities; 3) The last stage is the evaluation stage consisting of a question and answer session at the end of the socialization session, and 2) disaster simulation by participants. Results: The result of this service activity is that 21 evacuation routes have been installed at tourist sites, the installation of evacuation route maps at 5 location points that have the potential to have many visitors, and the presence of gathering point locations at tourist sites. In addition, related to the results of non-structural disaster mitigation, showed that participants looked enthusiastic when socialization related to disaster mitigation was carried out and they were able to take part in disaster simulation activities properly and correctly and carry out self-rescue efforts by following the evacuation route that had been installed and heading to the gathering point according to the time. determined is 1 minute 25 seconds. Conclusion: Employees at tourist sites can make mitigation efforts by the directions at the time of socialization, namely by running in the direction of the evacuation route that has been installed at the tourist location and can go to the meeting point location according to a fast time of 1 minute 25 seconds.

Merging transport network companies and taxis in Curitiba’s BRT system

AbstractThe Brazilian city of Curitiba became known around the world for pioneering bus rapid transit (BRT) in the 1970s. Five decades later, public transport ridership is declining on the city’s bus-based system. One-person car trips and car ownership are soaring, and services provided by transport network companies rapidly proliferate and then disappear as congestion worsens and expands across the road network. This was the macro-scale scenario for mobility and modal trends in Curitiba until COVID-19 brought things to a screeching halt in 2020. The widespread use of information and communication technologies has allowed taxi and car ride-hailing transport network schemes to emerge while blurring the lines between public and private and individual and collective transport, locally as well as globally. In 2016, transport network company systems, apps, private cars, services, drivers and passengers disrupted Curitiba’s longstanding and well-regulated taxi system and market for licenses. In 2023, hailing a cab or a shared ride feels and costs the same for passengers (now customers). This study investigates whether these actors and technologies compete with or complement each other in this city, locating and quantifying the benefits for passengers of merging taxi and car ridesharing with the BRT system as first- and last-mile transport to and from BRT corridors. We developed mobile information and communication technologies and acquired, processed, and analyzed millions of data points for passenger location on BRT, ordinary bus, and taxi trips at the city scale. The shareability index for Curitiba’s taxi or car rides was calculated, demonstrating that 60% of all taxi trips have the potential to serve as first- and last-mile transport solution to and from the BRT terminals, stations, and corridors and that nearly 40% of taxi trips both originate and end near (< 500 m) this BRT system infrastructure. By envisioning how transport network companies could merge into the built environment thanks to urban transport digitization, we have developed a model for integrating public transport with the analytic framework of transport network companies that could be deployed in other cities with similar challenges related to public transport, sociotechnical arrangements, system complexity, policymaking, and planning.

Development of Model Optical Distribution Point Location Detector System with GIS Approach Method- Case Study in PT. Telkom Witel Bandung

Principally, the validation of the location of the Optical Distribution Point (ODP) device is carried out to match the field data with the data at the center of the system. The current problem is that there are frequent shifts in ODP location data points in the field with the data system at PT. Telkom Witel Bandung because the existing detection system is still manual. This condition directly disrupts the performance of the communication network system so that service to customers is reduced. Therefore, it is necessary to develop a digital and automatic detection system for detecting ODP locations through the use of the Geographic Information System (GIS) method. This method is able to increase the accuracy and efficiency of the travel time to the ODP location point. This study aims to increase the accuracy of the ODP device at different locations through the development of a location point detection system using the geographic information system method approach. The testing technique carried out in this study used two methods, namely the direct method and the GPS field measure method. The test results on the developed geographic information system have been successfully integrated with Google maps and the GPS sensor has been successfully sent to the application. The results of the previous system obtained a location accuracy rate with an error percentage value of 3.6%. While the results of this development system obtained an error percentage value of 1%. Based on the results of the final test, it shows that the system developed in this study produces a better accuracy value than the previous system. In the future, this developed system can be implemented to accurately detect ODP locations for larger numbers and larger areas.

Local Method for Separating Sound and Pseudosound Pressure Fluctuations

A new method for separating acoustic and pseudosound pressure fluctuations is proposed, based on analysis of signals at a pair of closely located points, so that the total size of the measurement zone is much smaller than the correlation scale of pseudosound perturbations. It is suggested that hydrodynamic fluctuationspropagate at a velocity significantly lower than the sound velocity and obey the “frozen-in” perturbation model, which makes it possible, in real time or during data postprocessing, to convert the spatial derivative of the signal into a temporal derivative, which, after time integration, yields an estimate for pseudosound perturbationsat the measurement point. A theoretical model of the approach and test results using model examples and numerical simulation data are presented.

Retroperitoneal homunculus lesion in a newborn male

Fetiform teratoma is a rare form of teratoma that resembles a malformed fetus due to highly organized differentiation. Most commonly seen arising from ovaries; however, we present a case of fetiform teratoma in the retroperitoneum in a male fetus. It is a unique case, as age, gender, and location point toward fetus-in-fetu where malignant transformation is highly unlikely. Distinction from fetus-in-fetu is necessitated due to malignant transformation in case of the presence of immature elements within.

Failure in co-cured composite joints enhanced with J-272 film

Lightweight and high strength CFRP material has been applied to airspace industry to realize lightweight aircraft. Nowadays, composite T-joint is a common adhesive joint type used in aircraft CFRP load-bearing structure. This study employed T300/7901 prepreg and J-272 film as the adhesive in the deltoid of T-joints, and produce T-shaped specimens via co-curing. The start point of failure location is located at deltoid through pull-off test combined with digital image correlation system. In the pull-off test, the failure of the T-joint specimen, the deltoid of which was filled with T300/7901 prepreg and J-272 film, exhibited progressive failure mechanism from rib web to skin. Compared to adherence with T300/7901 prepreg, the initial failure load and toughness of composite T-joints adhered with J-272 film were increased 24.3% and 34.7%, in which J-272 film boosted the interfacial binding between the rib web and the skin.

Analysis of the Business Model Canvas Approach for Indonesian Sharia Bank Gold Pawn Products

This research was motivated by the existing condition of the Indonesian Sharia Bank Tomo branch which is still in the form of Sub-Branch Offices; there are no bank location points on maps, low marketing intensity on social media, and the traditional gold content measuring instruments. This research method is a field and qualitative descriptive approach. Primary and secondary data collection techniques through observation, documentation, and interviews using source triangulation techniques. Data analysis techniques of Miles and Huberman and SWOT analysis. The results of research through SWOT analysis that produce alternative strategies to form a Business Model Canvas improvements are in Customer Segments with the addition of younger generation segments. Customer Relationship by maximizing personal assistance. Channels with the addition of more intense and trending use of social media, website updates, more attractive and quality brochures, and holding seminars. Value Proposition: The modernization of measuring instrument technology. Key Activities with modernising gold content measuring instruments can minimize estimation errors. Key Resources, modernization of measuring instrument technology, training centres, and cash deposits at ATMs. Key Partnership is the hope of collaborating with universities. Revenue Streams are expected to increase existing revenue. Cost Structure by removing the cost of test water.