bluuebunny/crossref_metadata_2025 huggingface dataset:
Chaos and Periodicities in Solar Flare Index from Kandilli Observatory during 1976–2014
Authors: Roy Soumya , Prasad Amrita , Ghosh Koushik , Panja Subhash Chandra , Patra Sankar Narayan
Published: July 2020

The Solar Flare Index is regarded as one of the most important solar indices in the field of solarterrestrial research. It has the maximum effect on Earth of all other solar activity indices and is being considered for describing the short-lived dynamo action inside the Sun. This paper attempts to study the short as well as long-term temporal fluctuations in the chromosphere region of the Sun using the Solar Flare Index. The daily Solar Flare Index for Northern, Southern Hemisphere and Total Disk are considered for a period from January 1976 to December 2014 (total 14 245 days) for chaotic as well as periodic analysis. The 0–1 test has been employed to investigate the chaotic behavior associated with the Solar Flare Index. This test revealed that the time series data is non-linear and multi-periodic in nature with deterministic chaotic features. For periodic analysis, the Raleigh Power Spectrum algorithm has been used for identifying the predominant periods within the data along with their confidence score. The well-known fundamental period of 27 days and 11 years along with their harmonics are well affirmed in our investigation with a period of 28 days and 10.77 years. The presence of 14 days and 7 days periods in this investigation states the short-lived action inside the Sun. Our investigation also demonstrates the presence of other mid-range periods including the famous Rieger type period which are very much confirming the results obtained by other authors using various solar activity indicators.
Atmospheric regimes and trends on exoplanets and brown dwarfs
Authors: Zhang Xi
Published: July 2020

A planetary atmosphere is the outer gas layer of a planet. Besides its scientific significance among the first and most accessible planetary layers observed from space, it is closely connected with planetary formation and evolution, surface and interior processes, and habitability of planets. Current theories of planetary atmospheres were primarily obtained through the studies of eight large planets, Pluto and three large moons (Io, Titan, and Triton) in the Solar System. Outside the Solar System, more than four thousand extrasolar planets (exoplanets) and two thousand brown dwarfs have been confirmed in our Galaxy, and their population is rapidly growing. The rich information from these exotic bodies offers a database to test, in a statistical sense, the fundamental theories of planetary climates. Here we review the current knowledge on atmospheres of exoplanets and brown dwarfs from recent observations and theories. This review highlights important regimes and statistical trends in an ensemble of atmospheres as an initial step towards fully characterizing diverse substellar atmospheres, that illustrates the underlying principles and critical problems. Insights are obtained through analysis of the dependence of atmospheric characteristics on basic planetary parameters. Dominant processes that influence atmospheric stability, energy transport, temperature, composition and flow pattern are discussed and elaborated with simple scaling laws. We dedicate this review to Dr. Adam P. Showman (1968–2020) in recognition of his fundamental contribution to the understanding of atmospheric dynamics on giant planets, exoplanets and brown dwarfs.
Factors affecting residential choice in Greater Jakarta
Authors: Putranto L S , Louis P
Published: July 2020

Various factors might affect the choice of residential location. It might be transport- related or not. This paper was intended to identify factors affecting residential choice in Greater Jakarta. 102 respondents asked to complete 52 online surveys and 50 direct interviews. The questionnaires consist of 2 main parts, i.e. the general questions (gender, age, marital status, religion, job, ethnicity, educational attainment, vehicle ownership & use, and family structure) and residential choice related questions (characteristics of residential unit/environment/facility/distance and accessibility). The second part questions were responded by the respondents using 1 to 4 Likert scale from not important at all, slightly important, important and very important as a factor affecting residential choice. A one-sample t-test mean difference with 2.5 (a departure from not important to important with α=0.05. It was found that in general, Respondents perceived that in general, all observed characteristics were important to affect residential location choice except for a few exemptions.
The compressive strength behavior of mahogany wood connections with bolt-ring connectors
Authors: Dewobroto Wiryanto , Bali Ika , Semaya Amnifu Lodia
Published: July 2020

The connection systems of wood structures, which are often observed in Indonesia, mainly utilize bolts or nails, whereas a similar system with bolt-ring connectors is quite rare. In fact, in other countries like U.S., Netherlands, etc., such a system is commonly implemented, especially for the constructions of wood buildings which require a large capacity or a relatively large building. To show that the system also potentially excels when used for wood materials in Indonesia, especially in comparison with the ordinary bolt connection system, several empirical tests of the connection systems with materials from Mahogany wood (Swietenia spp.) were conducted. This experiment implemented six connection systems under compressive tests in order to investigate the compressive strength behavior of bolt-ring connections compared with the bolt connections. From this study, it can be concluded that the bolt-ring connection system yields better compressive strength behavior and performance than the bolt connection system. However, if used in connections with single ring, it is necessary to be careful when they are subjected to compressive loads. It is due to the connection system which may undergo rotations which can cause the system to be unstable. If stability can be safely maintained by adding some steel plate holder; then, the system will become more superior to the simple bolt connection system, in terms of compressive strength, stiffness, and ductility.
Development of unskilled labour into skilled labour at the jetty project of PLTU Tanjung Jati B Units 5 and 6
Authors: Jegoteluko  , Indra Sakti Wahyu
Published: July 2020

The construction of electric power plants is needed to meet national electricity needs and as far as possible is planned optimally with the principles of the lowest cost. The construction of power plants prioritizes the utilization of local energy sources. One of the power plant construction projects is PLTU Tanjung Jati- B units 5 and 6, Tubanan Village, Kembang Sub-District, Jepara Regency, Central Java Province. This project carries out community empowerment/unskillled labor in the construction phase. This study analyzes critical success factors (CSFs) and data collection is conducted through a questionnaire survey of respondents from community/unskilled labor. Research results show 10 critical success factors, which include the development of skills and quality of human resources through training; cost, quality and time control; the functioning and benefit of the constructed infrastructure, where infrastructure construction affects economic and social systems in the surrounding environment; human resource development through case studies; financial compensation received (direct payment); commitment of members of organizations; identification and allocation of risks; accuracy of the choice of technology used; timeliness in completing work; implementation of occupational health and safety programs.
Ground Water Potencial Analisys in Saolat And Waijoi Area East Halmahera
Authors: Asriningsih Pranoto Wati , Suyono Tri
Published: July 2020

The Saolat and Waijoi areas are water prone areas in the East Halamahera region which are inhabited by 2, 979 people who still have problems in the supply of drinking water. Potential surface water that meets drinking water quality standards is quite far, which is more than 10 km. Groundwater potential is the expected potential, but requires further study. Research on the potential of groundwater is carried out with a hydrological study of groundwater recharge needs to be done, so that groundwater uptake does not disturb the water balance in the ground. Meanwhile, to find out the potential groundwater point, geoelectricity is used to determine the predicted point which is predicted the groundwater potential is available. The area of blood catchment in the Saolat and Waijoi areas is 71, 108, 366 m² with a total built area of 1, 202, 747 m². Precipitation is 187.92 mm / month with infiltration of 143.99 mm / year and groundwater recharge of 318 liters / second. This groundwater potential is very sufficient to meet the drinking water needs which until the projected of 2.038 is 7.33 liters / second.
Design an automatic clothes dryer in a cabinet with wi-fi transmission
Authors: Nugraha Henri
Published: July 2020

Indonesia is a tropical country that has two seasons, dry and rainy seasons. Now this season in Indonesia is difficult to predict because of the effects of global warming. The effect of global warming is quite disturbing activities of human life, one of which is in the case of drying clothes. Then an automatic clothes dryer cabinet was made with Wi-Fi transmission media making it easier for humans to find out information in the cabinetremotely using a smartphone. The system starts when the voltage supply is turned on and the fan turns on and the other system is in standby. When the clothes are in the cabinet, the heater will turn on and the microcontroller will send information about the situation in the cabinet. The heater will turn off when it has reached the set temperature to prevent excess heat in the cabinet. Clothing weight information will appear on the smartphone through the application, if the weight of the clothes has reached <190 grams, then the clothes notification will appear dry and turn off the system on the application. The weight sensor has a role to activate the digital thermostat which has a temperature sensor to disconnect and connect the power to the heater.
Preliminary cost in industrial building at Sumatra, Kalimantan, and Papua
Authors: Setiawan C S , Gondokusumo O
Published: July 2020

Preliminary cost is a support cost that needs to be done so that the construction project can run well, but costs tend to experience an increase from the planned cost that has been determined to the final cost. Preliminary cost affects profits or losses of a construction project, therefore this study is essential so it can be known the reference for preliminary cost and cause of cost overruns, which items that give a high contribution to the preliminary cost, and the relationship between preliminary cost and profit at company XYZ. At Sumatra, Kalimantan, and Papua, the actual preliminaries cost occurs by 215%, 114%, and 188% from the planned cost, thus the cost overruns happened. The cause of this cost overruns can occur because of lack of skill of the estimator for estimating and planning about cost, duration, equipment and tools, miss implementation of method statement, lack of information about the project, incomplete design, and unaquired land. The component of the preliminary cost is vary based on its location. This analysis is necessary because it can show which items are influential and contribute a large proportion to the overall preliminary so that more attention is given to those items. The preliminary cost has a contradict relationship to profit, if the preliminary cost is increased, the profit will be decreased.
Reynolds number effects on swirling flows intensity and reattachment length over a backward-facing step geometry using STD k-ε turbulence model
Authors: Darmawan Steven
Published: July 2020

Swirling flow at recirculation zone of backward-facing step (BFS) geometry undoubtly affected by Reynolds number since it is involving rotational vortices. This flow behavior can be represented by flow intensity and reattachment length inside the geometry. BFS geometry is chosen for it is well-known characteristics visualizing swiriling flow that occur in many industrial application. Unfortunately, experimental method for visualizing rotational vortices over a BFS geometry oftenly involve advance technology including the image capturing devices. CFD method is use in this research for computionally visualize respected flows with Reynolds number variation with lower cost. The model is 3 dimensional with Step height (h) = 41mm, upstream height (H) = 81mm, expansion ratio = 1.5, total length (L) = 4050 mm and width = 20h. The mesh is triangular with 90.293 nodes. Reynolds numbers varied to Re = 4290.39; 6673.94; 7614.23; and 9287.29 which gained from experimental data. The working fluid is single phase air, with inlet and outlet temperature also gained from experimental data. The initial fluid temperature at inlet and outlet are 28.4°C and 28.8°C; 27.3°C and 28.6°C; 26.2°C and 28.3°C; 28.7°C and 29.8°C for respected Reynolds number variation. The flow condition is assumed transient with time step set of 1 and simulation is done with STD k-ε turbulence model. Highest Reynolds number variation reattached at reattachment / step height X/h = 6.82, compared to Re = 4290.39 with X/h = 11.71. CFD simulation results show that eddies inside the vortices and the X/h affected by floe velocity and so on with the flow temperature.
Design of an autonomous electric vehicle for assistance in the movement of people with visual disabilities using vision algorithms and artificial intelligence
Authors: José Encinas Cantaro Juan , Chauca Saavedra Mario
Published: July 2020

Currently autonomous vehicles are equipped with a variety of sensors, controls and actuators, depending on the objectives and requirements of the vehicle. One of the biggest challenges in the development of the autonomous vehicle system for the assistance in the movement of people with visual disabilities is the high cost. Therefore, researchers with a limited budget carry out their experiments and research in simulation environments, while other researchers use small vehicles that in many cases do not accurately represent a real parametric dynamic system. This article describes the design of a low-cost prototype of an autonomous electric vehicle that includes its control systems, microcontrollers, encoders, motor controllers, sensors and cameras. Therefore, the designed vehicle has the ability to move autonomously through the use of vision and artificial intelligence algorithms to assist in the movement of the visually impaired person. The document details the first steps of the design taking into account the parameters of a real environment and artificial intelligence algorithms.
Experimental analysis on combustion characteristics of single layer porous media for various burner sizes
Authors: Ismail N.C. , Abdullah M.Z. , Mazlan N.M.
Published: July 2020

In this paper, the combustion characteristics of premixed butane-air combustion in three burners with different inner diameters (ID); i.e. 23mm, 31mm, and 44mm are investigated. Effect of the burner size can influence the effectiveness of the combustion of porous media with different equivalence ratios (φ). The present study is focused on a single layer of alumina foam (Al2O3) of burner with a thickness of 15mm. The experiment was run under rich (1.2< φ<2.0) combustion mode to investigate the thermal performance and flame temperature were recorded. All surface flame on top of the burner was captured using a thermal imaging camera. The results indicated the maximum average temperature of 826°C of the burner with ID = 31mm. Also, flame stability and thermal performance are better compared to other ID = 23mm and 44mm. Finally, the maximum thermal efficiency was calculated and found out to be 57%. The effects of some parameters on the feature of combustion in different size burners are also highlighted.
Community Service Report: Designing The Ergonomic Roasting Machine For Coffee Seed With Additional Electrical Motor At Seduh Kopi Coffee Shop
Authors: Jusuf Daywin Frans , Gozali Lina , Widodo Lamto , Olyvia Doaly Carla , Wildan Hendri Ross M.
Published: July 2020

Seduh Kopi Coffee Shop is a coffee shop which has its own roasting machine with 2-kilogram capacity for roasting process. The reason of designing this roasting machine because of the expensive price of new machine in the market with small capacity (400 gram) for roasting process. Benchmarking activities needed for comparing the previous machines in the market before designing this roasting machine utilize the VDI 2221 method. This roasting machine consist of important component such as overall frame which is made from 50 x 35 Unp Iron and has function as an engine mount, roasting machine tube which is made from 2 mm stainless steel plates, The axis for spinning process is made from hss or solid round Iron, Tube Cover, input and output machine for coffee roasting are also made of Stainless Steel plates. The prime mover of this coffee roasting machine utilizes AC 220 V motor which function as prime mover connecting with Sprocket-Chain and Vbelt-Pulley.
Analysis of Supply Chain Risk Mitigation Strategies in the Bogor Compressor Company with the House of Risk Method
Authors: Perdana Surya , Usman Ridwan , Arifiya Nur
Published: July 2020

Compressor companies in the Bogor area, planning of purchasing raw materials and planning for production are based on direct orders from customers. Sometimes customers make sudden orders or increase the number of orders, so companies must change production schedules and order additional raw materials from suppliers. Not all suppliers can meet the sudden demand of the company. Compressor raw materials and other supporting raw materials often experience delays. This study aims to mitigate the causes of supply chain risk to eliminate and minimize company losses. The mapping of the company’s supply chain activities is based on the SCOR. After risk identification, risk assessment is carried out to determine severity, occurence, and correlation. Furthermore, the ARP value calculation is performed to determine the ranking and risk prioritization. Determination of risk prioritization using the HOR method. Based on the Pareto table, the highest ARP value is above 80%, there are 2 causes of risk A1 and A2 that contribute as much as 86.55% of the total ARP supply, the causes of the risk are: A1: Sudden order addition and A2: Breakdown of internal and/or external communication. These two causes of risk are the priority for prevention by the company.
Comparison Study Among Production Planning Research in Some Papers and Industries in Indonesia
Authors: Lefta F , Gozali L , Marie I A
Published: July 2020

Keeping company exist means the company must have good policies related to sales activity. The solution is by implementing production planning which include forecasting, aggregate planning, disaggregate planning, making master production schedule, making rough cut capacity planning, material requirement planning, and capacity requirement planning. Every companies have their own unique situation which make the best method for each company is different. The aim of this paper is to determine the gap among sore researches and studies about production planning ind Indonesia. For methodology, this paper will be described by comparison literature study, so in the future research could give contribution to the blank area of study.
Increasing Production Efficiency using Karakuri Principle (A Case Study in Small and Medium Enterprise)
Authors: Anggrahini Dewanti , Prasetyawan Yudha , Indriyani Diartiwi Sri
Published: July 2020

The number of Small and Medium Enterprise (SME) in food processing is increasing. It achieves about 70% from the total businesses established in Indonesia. One of the SME produce wingko, a traditional snack from East Java region which made from coconut, glutinous rice flour, and sugar. The process of making wingko consists of mixing, pouring, baking and packaging that mostly done manually by one or two operators. Through an analysis of the existing condition of the production process, it can be concluded that automation could be achieved with the oven machine, supported by conveyor that utilizes the karakuri kaizen method. This study proposes an integration design of material handling and baking machine that appropriate to be implied in the SME. Furthermore, calculation of indicators to measure the successfulness of the automation implementation is also conducted. The new system performs a significant improvement. This machine reduced the cycle time around 39%, especially in mixing and baking process. The manufacturing lead time is decreased about 55 minutes, while the production capacity is increased to 7 units per hour.
Performance Analysis of Employees at PT. Sungaiberkat Serani Sukses Using Human Resource Scorecard Method
Authors: Ahmad  , Laricha Salomon Lithrone , Alexander Dean
Published: July 2020

PT. Sungaiberkat Serani Sukses is one of the companies which concentrate or move in the industrial field agriculture especially processing equipment for agriculture machinery which made from main metal plat. One of the biggest problems faced by the company related to human resource performance is have not implemented the measurement of human resource performance yet. Problems like this can be solved by measuring the performance of human resources whose results can be used as a reference in determining improvement strategies. Measurement of human resource performance for PT. Sungaiberkat Serani Sukses was designed using the Human Resources Scorecard method and weighted on each Key Performance Indicator using the Analytical Hierarchy Process’s method and consists of 4 perspectives there is a perspective of the financial, a perspective of the customer, perspective of internal business, and perspective of learning and growth. Therefore, Human Resource Scorecard (HRSC) by describing vision and mission into action human resources produced 11 key performance indicator with scoring system OMAX and analyzed by Traffic Light System. There is 4 indicators should be fixed by the company that is employee productivity, giving a bonus, improve OHP, and recruitment workers effective.
Design System: Networks Status Notification using Telegram Messenger
Authors: Ramadhani Erika , Syarifurrahman Akhmad , Mahardhika G. P.
Published: July 2020

This paper discusses how to build a network interference notification system by integrating Telegram messenger. The problem faced is that when the system has not been integrated, a technician must check for interference based on complaints faced by the customer. After getting a disturbance report from a customer, a technician must check one by one to find out the disturbance. This is of course time consuming and inefficient. So, to facilitate the performance of technicians and to improve service, the system that was previously manual is integrated using a notification system that is integrated with Telegram. This system will automatically provide notifications through periodic checks conducted by Netwatch. Testing is done using simulations using virtual machines and GNS3. The results of this paper are a website-based application and Telegram-based messenger that are ready to be implemented on a real network.
Software-Defi Wireless Sensor Networks: A Systematic Review, Architecture and Challenges
Authors: Tony Tony , Hiryanto Lely
Published: July 2020

Software-defined networking (SDN) paradigm leads to innovation and simplicity in network configuration and management. Wireless sensor networks (WSNs) are becoming an essential component of the Internet of Things (IoTs). The combination of these two models gives rise to a new paradigm: Software-defined wireless sensor networks (SDWSNs). This paper provides a systematic review on SDWSNs. The study also discusses open challenges of further research on SDWSNs.
Design of expert system for tool selection in digital forensics investigation
Authors: Ramadhani Erika , Wahyuni Elyza G. , Pratama Hanif R.
Published: July 2020

Along with the diverse types of electronic goods and digital evidence, techniques have also developed in conducting digital forensic investigations. Another effect is the increase in types and types of tools for conducting digital forensic investigations. The problem is the increasing number of digital forensic tools is not always developed in conjunction with the manual book. So this is what makes the investigator to check the tool to make it suitable for investigations. Choosing the right tool is very important in the investigation process, because each stage of the forensic investigation process has a different treatment for each of its staging. Seeing these conditions, then in this paper we make a system design to facilitate investigators in choosing the right digital forensic tool and in accordance with using an expert system. The design system shows that it’s still needed to confirm to an expert to get a match output if there is a new rule. Later this system will be implemented with website technology.
Designing the QuickCash Payment System prototype by using cash withdrawal services through minimarket as an alternative solution for secure money transfer from bank customers to non-bank customers
Authors: Adi Wibowo Putro Prasetyo , Paras Mulati Gagas
Published: July 2020

In this era wich has many electronic payment facilities, it is noted that the need for cash in Indonesia is still high and bank customers are still relatively small. This shows that Indonesians need money transfer services from bank customers to non-bank customers. As an alternative to meeting these needs, Alhothaily, et al. put forward a QuickCash payment system that allows bank customers to transfer money to non-bank customers. Therefore, in this study, the prototype design of the QuickCash payment system was made to facilitate the transfer of money. According to Alhothaily, et al. QuickCash payment system is a payment system that makes it easy for users to transfer money. To prove this statement, the prototype design of the QuickCash payment system was built using the SSDLC methodology and tested the QuickCash payment system prototype by collecting data using a questionnaire. Based on the test results with a significance level of 5%, all respondents agreed that the QuickCash payment system made it easy for users to make money transfers.
Decision Support System Model Determines the Type of Road Construction in Indonesia
Authors: Henderi Henderi , Kurnadi Endang , Trisnawarman Dedi
Published: July 2020

The road functions as an infrastructure of traffic movement and its performance can be assessed. It has mattered in performance, including durability, economic value, planned life, comfort, and flexibility. The roads can be damaged and require repairs to maintain performance. Handling road damage in Indonesia is still found to be a mismatch between planning and implementation. This research was conducted to assist decision-makers in determining the type of road construction in accordance with technical and non-technical factors. Factors used to assess eligibility in the selection of road improvements is the type of concrete construction or asphalt construction. This study intends to develop a decision support system to determine the type of road construction. The model was developed using Analytical Hierarchy Process method. The factors used in the model are the availability of resources, road surface comfort, weather resistance, ground movement, traffic conditions, and maintenance period. The results showing the technical factors have the highest weight resistance to weather (0.491), and non-technical factors are the availability of resources (0.667).
Segmentation of White Blood Cell Areas from Colour Degraded Microscope Slide Images
Authors: Lina  , Dewayani Ery , Chris Arlends
Published: July 2020

Advances in computer technology have increased in most aspects of medical analysis, such as for diagnosing diseases, treating drugs, analysing organs, and others. Computers are often used as a tool for analysis of medical images. This paper describes an automatic segmentation process of white blood cell areas on given microscopic images. The input of the system is microscope slide images with various staining conditions. Some images contain colour degradations due to imperfect staining process, while some images are in excellent staining condition. The Hough Transform method is applied for the segmentation process of the white blood cells detection. The system classifies each detected white blood cell area in one of the three defined categories (Small, Medium, and Large). The segmentation accuracy of the proposed system was 40.58% for images with colour degradation, while 100% segmentation accuracy was achieved by the system for images with excellent staining condition.
Interior Design Of Postgraduate Library Based On Cyber Technology By Applying Javanese Cultural Ornaments And Eco-Friendly Materials
Authors: Hartini  , Wibawa Basuki , Situmorang Robinson , Efendy Stephanie
Published: July 2020

Developing a library interior fitting one of the goals is to facilitate visitors who are looking for books to be the more comfortable, more organized of space, to provide visitor infrastructure facilities and to preserve Javanese cultural ornaments through transformation into the interior. The interior library is designed to improve visitor quality, improve visitor interiors, build cultural architectural interiors, this paper supports the development of designs for sustainability (DfS) eco-friendly and fosters the empathic role of designers. Proposed design research methods on positive design. This article is based on data obtained using various qualitative research techniques, analysis of Javanese culture ornaments and interviews of Javanese cultural experts. This research presents an exploration of library interior design with Javanese art ornaments that have developed decoration design and interior design in Java. This proves the tradition of dominant styles such as transforming forms, colors, and philosophies for aesthetic approval in the postgraduate library interior. The design process to create the space depicted - visual representation, reconciling the shape of the layout of images, the appearance of pieces and perspectives of space, based on cyber technology obtained through the incorporation of the philosophy of Javanese cultural ornaments, as a cultural storehouse. The article explains the interior design by applying the results of regional culture must continue to innovate in order to support and develop the community towards awareness of cultural preservation that has high artistic value.
Automatic Statistics Measurement Antenna Performance Towards Virtual Ground Station
Authors: Hidayat Arif , Gunawan Hidayat , Syahputra Nasution Ali , Andrianingsih  , Wahyudi Diki
Published: July 2020

Ground station systems have expensive maintenance costs, the system should always be ready to receive remote sensing satellite data. The emergence of ground station discourse where earth station antennas are placed in remote areas, to obtain satellite data according to the desired strategic area. The high operational costs and reliability of the equipment, in tracking satellite and recording the remote sensing data need to monitoring and analyzing continually. System and reliability can be analyzed from the satellite data reception log. This remote-based system requires an analysis system that is able to work to automatically collect log data from several antennas and display it easily so that it can be learned without having to check each log antenna one by one. This system facilitates detection when anomaly occurs on the antenna. The statistical method is used in analyzing the antenna so that it can be known the average receive signal level parameter in the receiver, the maximum value along with azimuth and elevation. This system can see the average antenna capability and the condition of the antenna when it is not optimal. The monitoring should be automatic to locate problems in data acquisition. This system is proposed to virtual ground station.
Website application for visualizing intangible cultural heritage integrated with google maps : case study in balai pelestarian nilai budaya jawa barat
Authors: Laverius Andre , Dewayani Ery , Wasino
Published: July 2020

Intangible Cultural Heritage (ICH) in Indonesia are being monitored by Ministry of Education and Culture through Balai Pelestarian Nilai Budaya (BPNB). There are eleven BPNB accros the country, each of BPNB has their own working area. In this case BPNB Jawa Barat has four province that needs to be monitored. The four province are Province of Lampung, Banten, Jakarta, and West Java. According to Convention for the Safeguarding of the ICH, every country are required to record all the ICH that exist. Since Indonesia has enormous ICH through this website application it can provide the spread of ICH using google map based that use stored longitude and latitude data from database. The aim of this website application is to provide details information of the culture such as information about the maestro, the history, the record status, and to help preserve Indonesia’s ICH from globalisation by giving better information accsess to people. This website application has tested using data structure given from BPNB Jabar such as maestro of culture, domain of culture, sub-domain of culture, organization of culture and record status of culture.
Start to End: Recommended Travel Routes Based on Tourist Preference
Authors: Wangi Vivien H. , Tji Beng Jap , Wasino
Published: July 2020

When going on a tour, one of the things to consider is making an itinerary before traveling in accordance to the time limit required by tourists. This application will help tourists plan a tour that suits them. In making this system, Greedy Algorithm is used to help optimizing process of searching the shortest travel time and to find the number of tourism site in the route chosen for the tourists. Tourism site points for start to end can also be determined and specified by tourists. The data used was gathered directly through observations in Yogyakarta, specifically Bantul and Sleman. The result is an application for guiding or routing tourism objects from one object to another from start to end and in between. These travel routes are shown through google maps with other information such as distance and travel time from one tourist attraction to other tourist attractions.
Does Go-Jek affected Smart City Operational in Jakarta
Authors: Atmabrata Jevon , Tresani Nurahma
Published: July 2020

Online transportation such Go-Jek affected a lot of daily routine activity which change the lifestyle of living nowadays. Therefore, a question of does online transportation such Go-Jek really make Jakarta become a smart city? In fact some of online transportation users feel their life more effective dan flexible because of the service, however private drivers feel that the road is more crowded since the existence of online transportation which enhance the usage of motorcycle. Because of the uncertainty in between, this phenomenon needs to be testify with some data gathering and theory matrix. The finding would be different from the first thought of the usage in online transportation, therefore, be that meaning, the tendency is not by overlooked in a good or bad way, but from few point of perspectives.
Study of Vertical Residential Development in the Poris Plawad Mass Transportation Development Area (TOD) in Tangerang City
Authors: Megawati
Published: July 2020

The aims of this study is the development of vertical housing in Tangerang City is an alternative strategy to meet the needs of housing for the community, especially Low-Income Communities (MBR), reduce backlogs, and optimize the fulfillment of Green Open Space (RTH). In addition, it also aims to build a vertical housing development model and its implications for policy / meeting the needs of the community for housing, providing a transit area that is responsive to the needs of mass transportation or developing a Transit Oriented Development (TOD) based area in Greater Jakarta, and creating a transit area with various kinds of supporting facilities with integrated activity functions. Data analysis methods used include descriptive analysis, statistical analysis, financial analysis, input-output (I-O) analysis, and dynamic system analysis. The results showed that the people of Tangerang City had the potential for great interest in vertical housing but the level of affordability was still very low. For this reason, the role of the government is very much needed in terms of facilitating developers in the form of policies. Housing development also has a multiplier effect on development in Tangerang City and the surrounding area. These impacts can, among other things, increase community income, a high rate of employment, also expected by the development of vertical dwellings in the TOD area can leave private vehicles and switch to public transportation or mass transportation such as the use of LRT, MRT, commuter line, bus, and etc.
Linked pools culverts facilities
Authors: Khidirov S , Norkulov B , Ishankulov Z , Nurmatov P , Gayur A
Published: July 2020

A mathematical model is presented, a hydraulic jump that appears during the transition of the flow from a turbulent state (Fr>1.0) to critical (Fr<1.0). The main assumptions made to obtain the divergent form of the Saint-Venant hydrodynamic equations are given: - planned (two-dimensional) effects do not affect the flow (but still local energy losses due to sharp turns and changes in the channel shape in the plan can be taken into account; to take into account such losses in local sections of the channel increased local hydraulic resistance is introduced). The results of numerical studies of the downstream of the culvert structure of the medium-pressure reservoir are presented. The developed numerical model using explicit difference schemes is presented. Based on the results of numerical studies of the hydraulic jump, the possibility of establishing the degree of quenching of the excess flow energy having the destructive ability of the construction of the downstream of medium-pressure reservoirs is substantiated. The calculation results showed that an increase in the hydraulic resistance value promotes the displacement of the hydraulic jump against the current and an increase in its associated depths. At the concatenation site of the upstream, there was a sharp decrease in the Froude number from 2.76 to 0.69, with a change in average speed from 8.81 m/s to 3.26 m/s. It is substantiated that from the calculated values of the vertical dimensions of the hydraulic jump with various values of hydraulic resistance and the throughput of the structure, it is possible to determine the horizontal dimensions of the jump, which makes it possible to select the optimal sizes of the downstream attachment zone in and after the hydraulic jump.
Morphometric elements of the channel and hydraulic flow parameters in the zone of the river backwater
Authors: Maalem N , Khasanov Kh , Nishanbaev Kh
Published: July 2020

The article is devoted to the analysis of the dynamics of the morphometry of the river bed and the hydraulic parameters of the flow under conditions of flow regulation. For the analysis of the dynamics of the bed morphometry and hydraulic elements of the flow, the Nietbaitas hydro-array located in the zone of the sub-flow of the lower reaches of the Amudarya river in Uzbekistan was selected. As a result of the analysis of data from long-term field studies and hydrometric measurements at the Nietbaitas hydrostorm of the Amudarya river, functional relationships were established between the morphometric elements of the channel and the hydraulic parameters of the flow. The dynamics of the Chezy coefficient, hydraulic resistance, and the roughness coefficient of the channel in conjunction with the hydrodynamic characteristic of the flow are established. Adapted formulas are recommended for determining the calculated values of the Chezi coefficients, roughness, and average flow velocity, taking into account the decelerating effect of the banks of the Amudarya river bed
Estimation of the earth dam strength with inelastic soil properties
Authors: Mirsaidov M , Sultanov T , Yarashov J , Urazmukhammedova Z
Published: July 2020

The study aims to develop the models, methods, and algorithms for assessing the earth’s structure strength with inelastic-plastic properties of soil and to evaluate the strength of earth dams. For the mathematical statement of the problem, the principle of virtual displacements, the finite element method, and the elastic solution method were used. To assess the safety factor at each point in the structure, the Coulomb – Mohr theory of strength was used. The stress-strain state (SSS) of specifically designed earth dams with a height of 195 m was studied under various static effects, with inelastic elastic-plastic properties of soil. The isolines of equal values distribution of safety factor for a dam body, as a whole, were obtained, which allow stating the presence, size, and location of the zones in which the strength condition is met.
Design method for reinforced concrete structure durability with the use of safety coefficient by service life period
Authors: Choriev J , Muratov A , Yangiev A , Muratov O , Karshiev R
Published: July 2020

The given method uses the safety coefficient by service life period and similar principles as for stochastic method. Moreover, the problem of forecasting the safety is examined in a deterministic form. The given option for the solution is compact in terms of design on an applied level in the format of the boundary conditions method, keeping the efficient control of safety within the service life period. This method has the advantage to design reinforced concrete structures for specified service life period. The proposed method is also applicable for the design of reinforced concrete elements of hydraulic structures in cases when the application of the other stochastic methods would be very complicated. The advantage of the given method is allowing including the stochastic nature of loading parameters and material strength.
Factors for the efficient use of water distribution facilities
Authors: Matyakubov B , Begmatov I , Raimova I , Teplova G
Published: July 2020

In this article, the situation in the selected area was completely investigated to avoid problems that arise when the water distribution facility is in a faulty position. The condition of the hydrotechnical constructions was evaluated. The priority of work on repair and construction of hydraulic structures was defined. As a result of the proper operation of hydrotechnical constructions, a uniform distribution of the volume of water necessary for irrigation of crops throughout the canal, in its upper, middle, and lower parts, was achieved. To implement these activities, first of all hydraulic engineers were trained in the management, repair, and construction of new hydraulic structures. The project documentation (business plan) for the repair hydraulic structures and construction of a new one was developed. On this basis, the repair and construction of new hydraulic structures were carried out. There were given recommendations to the specialists on improving the durability of hydrotechnical constructions. According to the recommendations it is planned to check the state of hydrotechnical constructions after each water and to register them. Several concepts have been proposed to extend the life of the hydrotechnical construction. By repairing and building new hydrotechnical constructions, in the middle and bottom of the canal, and all water distribution canals the water supply to 1015 beneficiaries has been improved. It was achieved an increase in crop yield by 15% and 22% of water savings.
Operational responsibility and operational reliability of cotton drip irrigation systems
Authors: Serikbaev B , Butayarov A
Published: July 2020

The article deals with the introduction and operation of drip irrigation systems using water-saving technologies for the cultivation of “Sultan” cotton in the Jarqurghon massif of the Denau branch of “Surkhan Sifat Tekstil” LLC in Jarqurghon district of Surkhandarya region. The results of theoretical and field experimental studies conducted in 2018-2019 are presented. In changing the natural climate and economic conditions of the region under consideration, the authors first determined the values of reliability and operational reliability of the main joints and the entire drip irrigation system. High efficiency and reliability of drip irrigation systems are ensured due to their high design and high-quality construction and installation work. The operation of the system is constantly monitored for the implementation of all activities provided for in the business plan of farms. Therefore, the work on ensuring the technical and working condition of drip irrigation systems, improving the reclamation of lands, maximizing productivity and operation has helped
Altitude regularity of climatic factors in suspended sediments flowing formation of Mountain Rivers
Authors: Khikmatov F , Jumabaeva G , Rakhmonov K
Published: July 2020

The article addresses the changing role of climatic factors in the formation of the flow of suspended sediments of Mountain Rivers in Central Asia with the height of their pools. For this purpose, multi-factor analysis of the relationship between suspended sediment runoff and climatic factors - atmospheric precipitation of winter and summer seasons and air temperature over summer - has been carried out. The division of atmospheric precipitation takes into account another climatic parameter, namely the type of precipitation - solid and liquid. Under winter are taken the amounts of precipitation falling from October to March, mainly in solid form, and behind summer - precipitation of warm half-year (April-September), which mainly fall in liquid form. It is shown that in rivers of snow-rain and snow types of nutrition paired coefficients of correlation of run-off of suspended sediments both with winter and summer precipitation have a positive sign. On the contrary, with the increase in the average height of the basins, i.e. in the rivers of the snow-ice and ice-ice types, the values of the paired correlation coefficients with the precipitation of winter and summer are low and they are always lower than the values of the paired correlation coefficients with the air temperature.
Modern direction for agricultural development in the Republic of Uzbekistan
Authors: Igamberdiyev A , Alikulov S , Berdimuratov P , Artiqbaev B , Berdimurodov U , Usarov O
Published: July 2020

In the conditions of the Republic of Uzbekistan, much attention is paid to the efficient use of irrigated land, the introduction of modern resource-saving technologies, and universal equipment that can ensure competitiveness, increase productivity and obtain high crop yields. A solution to the problem is proposed by replacing single-operation, simple equipment with more advanced ones - multifunctional, universal, or combined units. Therefore, reducing the number of passes by combining two or more technological operations using universal or combined units of pre-sowing tillage and sowing in cotton rows between rows can provide an increase in productivity, lower operational and energy costs. Traditional conventional single operational methods of tillage and sowing are becoming more and more expensive in terms of time, energy costs, metal consumption, the number of machines needed, and also lead to disruption of the soil structure and compaction due to the greater number of passes. In the conditions of irrigated agriculture in Uzbekistan, the combination of primary processing with sowing is considered unacceptable except for pre-sowing treatment and the sowing of repeated crops. With a high probability, a promising and necessary way is a combination of pre-sowing treatment and sowing.