bluuebunny/crossref_metadata_2025_split huggingface dataset:
Control of object prediction using smart optimized water indication (sonic) algorithm for flood detection
Authors: Utomo Satryo Budi , Irawan Januar Fery , Sakti Widhi Winata , Faizah Fiqqih 
Published: March 2021

Abstract
This paper presents the development of a new algorithm in the field of image processing that enables the detection of flood disasters quickly and accurately, using the SONIC (Smart water indication optimizer) method. Concentrated detection in online real-time camera systems has been performed by several tests consisting of classifying camera objects, thermal cameras, and learning cameras. The introduction to the RTC web enables real-time and multiplatform data delivery systems on devices comprised of computers and android gadgets, on object classification using the SONIC algorithm. The object consists of humans, yellow balls, and green balls, with each sample having 50 points of view. The experiments showed test results up to 100% per age with real-time camera capture speeds.
Finite element method for stress analysis in the frame holder of generator translation and rotation motion on vertical direction mechanism for sea wave power plant
Authors: Suhartini Y. , Indriani A. , Hendra  , Rispandi  , Hernadewita  
Published: March 2021

Abstract
Finite element method (FEM) has been used to calculate stress analysis in many field of engineering or industry (metal, automotive, power plant and etc.). FEM can be applied to reduce cost of product processing before manufacturing process. Requirement of design of product is cheaper, good properties, effective and efficient depend on function of product. Stress analysis depend on the properties of material, load, static and dynamic and shape of product or component. In the metal processing, FEM is applied for stress analysis in the conveying roll component due to the load on the roll and thermal stress analysis in the component of low pressure die casting machine. In the power plant, FEM is applied in the frame holder of generator to get stress due to static and dynamic load. Requirement properties of material frame holder of generator is stable, high strength, high stiffness, high corrosion resistance, and etc. In this research focus on the stress in the frame holder of generator translation and rotation motion on vertical direction. Varying load and material has been used for frame holder of generator such as cast iron, stainless steel, steel and thermoplastic resin. In the previous study, frame holder of generator has been used from cast iron and thrust force direction come from horizontal direction. The results get the maximum value (σmax) of von mises of generator is is 643.4 MPa and the deflection value is 6.13 mm. By applied of vertical thrust force direction on the frame holder of generator translation and rotation is found that the maximum stress von misses value σvmis 74845 MPa and displacement is 17.9 mmby load 10 KN and using cast iron to frame holder of generator material.
Interpolation algorithm in designing of feed-forward robust precision control motion
Authors: Rusli Mochammad , Choiron Moch Agus , Muslim Muhammad Aziz 
Published: March 2021

Abstract
Based on the structure and dynamic process of the ladder secondary double-sided linear induction motor (DSLIM) with asymmetry position of primary part of motor, the motor parameters may change with the secondary position, which directly cause the stability of electromagnetic thrust. It is difficult to meet the system control performances for designing of controller in the dynamic characteristics of the speed closed loop. This paper describes some solving algorithm by adopting the rotor field oriented control as the model matching strategy to achieve the smooth control of the electromagnetic thrust. The arrangement of model matching process is based on the Nevallina pick solution as linear interpolation method. Through the robust control concept and model matching control, the stability of the electromagnetic thrust during the motor step change process can be achieved. The simulation results verify the truth of the presented control strategies.
Simulation of melt temperature on quality of Pepsodent toothbrush products in injection molding process using Ansys software
Authors: Susetyo Arief , Andoko  
Published: March 2021

Abstract
Shrinkage is a defect in the form of a change in the dimensions of the product as a result of the injection molding process. Cooling mold is one of the factors that influence shrinkage product defects. Cooling the mold is done using a fluid medium (water cooling). The test was carried out using polypropylene material with constant parameter set-up such as injection time of 2 seconds, injection pressure of 10 MPa, coolant temperature of 22, 24, and 26 °C and melt temperatures of 190, 200 and 210 °C. Simulation uses Ansys transient software using the finite element method to analyze the average temperature in the product cavity. Simulation was using Pepsodent toothbrush products. Simulation result shows the best product quality with a product quality value produces a fill time value of 3.19 seconds with a predictive quality of 68.5% and has a weld line of 0.0115 °, a cooling time of 13.8 seconds and a shrinkage value of 0.008 mm. Simulation results show that the optimal product quality values are found in the set-up parameters of 24 °C coolant temperature, 200 °C melt temperature and 41.3 °C mold temperature. Product quality safety factor indicates that the product is in a good category. This means that the value of product quality is influenced by the mold cooler temperature and along with the increase in the mold temperature, which causes the mold cooling temperature is not constant.
Effect of coolant temperature on product quality on injection molding machines using Autodesk Moldflow adviser software
Authors: Wildan Akhmad , Andoko Andoko 
Published: March 2021

Abstract
Injection molding is a manufacturing machine that processes the production of small to large plastic packaging that does not have a cavity like a bottle. This study aims to analyze the effect of variations in mold cooler temperature and injection time on the quality of plastic products in multi cavities. The cooling system in the injection molding process affects the quality of plastic products, if the mold is too hot then the melt or liquid plastic will experience a slowdown in the freezing process resulting in defects in the product. This research uses the simulation method, the simulation is carried out to simplify the numerical approach analytically because in simulation it is not only part model, but also injection mold design can be checked and optimized by simulation with the Finite Element Method approach. The software used is ANSYS to obtain the Molding temperature and Autodesk Moldflow Adviser to get product quality. The variations used are temperature 16, 17, 18 with Melt temperature 230 and injection time of 2.4 seconds.
Failure analysis of railway freight car axle with finite method element
Authors: Jeadi Raymond Philander , Andoko Andoko 
Published: March 2021

Abstract
Caring for goods transportation vehicles is a natural thing in maintaining conditions in order to stay in prime condition, especially in the most important parts. One of the sections of the most important in a vehicle carrying humans or goods i.e.as the wheel. Care extra is needed so that no occurrence of failure when used. The failure of a part when used can result in consequences are potentially disastrous to the possibility of man as the victim. Therefore, axle vehicles, especially rail are designed extremely reliable, with a maintenance inspection of a non-destructive manner periodically. However, in a situation unique, as the wheel to experience a state of tension complex as well as some of the conditions the voltage doubles, so that the failure of fatigue at the time used. Studies have clarified the equivalent stress, strain energy, as well as the safety factor of the cause of the fracture of the axle wagon railway transporter type of train railway that used to haul coal in which the analysis of the failure of the shaft fractures is done by simulation with the comparison material standards and materials that have been inspected by the journal related.
Effect of shape mode and crack length on stress distribution in fiber metal laminates
Authors: Anam Khairul , Wahjudi Ari , Purnowidodo Anindito , Widodo Agung Sugeng , Talibo Teguh 
Published: March 2021

Abstract
Fiber metal laminates (FMLs) are widely used in various fields such as automotive and aerospace due to their high stiffness and strength to weight ratios. Moreover, they are also high fatigue resistance. In some applications such as aircraft structures, it is crucial to do a dynamic analysis in the FMLs structure. This research aims to investigate the effect of shape mode and crack length on stress distribution in fiber metal laminates. Numerical analysis is performed in this study to evaluate the stress distribution. Ten initial mode shape and crack length of 5 mm, 10 mm, and 15 mm are used as the environmental conditions of the FMLs. The results indicate that the mode shape will change the stress distribution and the maximum stress position. Besides, the crack will propagate when it received tensile stress and in opening mode.
Design and development of air powered car using air motor engine
Authors: Setyono Bambang 
Published: March 2021

Abstract
This study aims to design and determine the performance of pressurized air-powered cars. The design results in the form of a three-wheeled air-powered car with a capacity of one person, the engine uses a four vanes-reversible air motor with a maximum rotation of 3000 rpm equipped with an air tube capacity of 6 m3 of pressure 150 bar. Test results with an operating pressure of 80 psi produce 2.74 HP. The car can drive stably and without significant obstacles. An air-powered car with light construction, simple way of working, low manufacturing and maintenance costs, does not produce exhaust emissions. However, it also has a disadvantage that there is still a rather noisy sound from the air outlet; it still needs a large enough and strong tube size to accommodate high-pressure air and large capacity. If these weaknesses can be overcome, pressurized air-powered vehicles will become one of the cars of the future.
Parametric study of gas-solid flow characteristic by using integration computational fluid dynamics and dynamic simulation
Authors: Widiawaty Candra Damis , Siswantara Ahmad Indra , Budiarso  , Daryus Asyari , Ramdlan Gunadi Gun Gun , Pujowidodo Hariyotejo , Gumelar Syafei Muhammad Hilman , Farhan Tanwir Ahmad 
Published: March 2021

Abstract
The multiphase gas-solid in the FCC Riser system is a complex flow. The particle flow influenced by superficial velocity. Some researchers showed that it needs a method to solve the advanced analysis in solid-particle characteristics, for example, Reynold number particle, the difference of height fluidization, coefficient of drag, and particle forces. This research gives an alternative method by integrating the CFD method and dynamic simulation method. We used EES as dynamic simulation software. The simulation data need some data such as average fluid velocity, average solid velocity, a maximum height of fluidization, and void fraction. The mathematical model is performed and the simulation data is copied to EES to analyst the gas-solid flow characteristic. This parametric study has been carried out with several superficial velocity 0.35 m s−1, 0.45 m−1, 0.5 m−1, and 0.7 m s−1. The results show that there are fluctuations in the forces received by the particles due to changes in the superficial velocity. However, the tendency of fluctuation trend to be directly proportional to the increase in the superficial velocity. The dynamic simulation calculations have a good agreement compare to literature studies and basic theory for solid flow behaviour in bubbling regimes.
The influence of foil-shaped center bulb geometry into catamaran fishing vessels resistance
Authors: Iqbal Muhammad , Budiarto Untung , Hidayat Kamal Zidan , Hernanta Hanif Hisyam , Trimulyono Andi 
Published: March 2021

Abstract
This paper discusses the use of foil-shaped center bulb in catamaran fishing vessels, where the length, width, and height of the center bulb were configured into six variations. This study aims to get the best configuration that can most reduce the total resistance of catamaran fishing vessels. Ship resistance was tested at Fr 0.15 to Fr 0.35 using the CFD method. The results showed that the best model was found in Model 6, where the length of the center bulb was 15% greater while the width and height were smaller by 10% from the original one. Model 6 can reduce resistance by 10.68%.
Vortex development analysis effects of the use of winglets on Airfoil E562 in unmanned aerial vehicles
Authors: Setyo Hariyadi S.P. , Sutardi  , Widodo Wawan Aries 
Published: March 2021

Abstract
The development of aerospace technology is always interesting to follow because designers and manufacturers of flying objects compete to produce the best performance. This invites various forms of objects and geometries to be studied and researched. The use of winglets is commonly used in flying objects in the world today. This study further explores the effects of using winglets on vortex formation in areas near the wing’s body and behind it. This research uses computational fluid dynamics using Ansys 19.1. The turbulent model used is k-ω SST with a Reynolds number of 2.34 x 104. The observed angle of attacks are 15° and 17° on Eppler 562 wing airfoil. This research found that each winglet configuration has different velocity path lines and vorticity magnitude characteristics different. In the areas where fluid flow jumps occur it is shown that there is an increase in fluid flow velocity. The forward wingtip fence can withstand the fluid flow jump better than other winglet configurations. The use of winglets results in a greater area of vorticity magnitude behind the wing than the plain wing even though the forward and rearward wingtip fence produces smaller values, especially behind the wing.
Analysis of the effect of addition of stern flaps on the performance of 60 m fast boat
Authors: Manik Parlindungan , Rindo Good , Yudo Hartono , Sinaga Ebin Ezer 
Published: March 2021

Abstract
Regulations from the International Maritime Organization (IMO) regarding energy efficiency mean that the ship design must have the least possible resistance so that fuel consumption is also low. Several modifications to the shape of the hull have been developed so that the performance of the ship can be improved so that its use is more efficient. The stern flap is a modification of the hull shape by adding an appendage to the lower transom. The application of the use of a stern flap can improve the movement of ships that are too heavy behind, causing the ship to have a tendency to trim the stern, increasing hydrodynamic work and reducing the obstacles that work while the ship is operating. This study analyzes the effect of adding an appendage to the stern in the form of a stern flap on the performance of fast boats using a computer program based on Computation Fluid Dynamic (CFD). This study was conducted by comparing the results of the analysis of the original model, namely without adding flaps with variations in the addition of flaps at the stern of the ship. Based on the analysis results, obtained an increase in ship performance for each stern flap variation compared to the original model. Flap V model with a flap length of 2% LPP and a Trailling Edge Down (TED) angle of 90 is the best variation. The total resistance value at each speed has a better decrease. Compared to other models, the total resistance of the ship is reduced by 5.53%.
The effect of molecular dynamic energy of photocatalysts on hydrogen production
Authors: Sofi’i Yepy Komaril , Siswanto Eko , Winarto  , Nyoman Gede Wardana I 
Published: March 2021

Abstract
Activated Carbon (AC) and Clitoria Ternatea Powder (CTP) were used as photocatalysts to produce hydrogen gas from water. Photocatalysts were characterized by SEM-EDX and FTIR. Photocatalysis was carried out for 1 hour using 300 W halogen blue light. The resulting gas was measured in ppm using the MQ 8 gas detector and converted into μmol. In photocatalysis, the various ratios of AC and CTP affect the molecular dynamic energy. The molecular dynamics energy was estimated with Hyperchem software. At the case of constant AC while increasing the number of CTP, the molecular dynamics energy increases from 524,143 kcal/mol to 801,488 kcal/mol. Whereas in the case of constant CTP while increasing the number of AC, the molecular dynamics energy only slightly increase from 524,143 kcal mol−1 to 541,527 kcal mol−1. Molecular dynamic energy in both cases is directly proportional to the hydrogen gas production in the first case, increasing CTP the hydrogen production reaches 2635 µmol g−1 h−1. Whereas in the second case, increasing AC, the hydrogen production tends to be constant. These results indicate the AC will play an optimal role as catalyst support when most of its defects are filled with CTP the defective grapheme in AC boosts the behaviour of electrons in the aromatic ring of CTP. In the future, it will be a step forward for the production of hydrogen gas in an environmentally friendly way.
Application of wavy absorber plate in solar dryer for higher drying speed in solar food dryer
Authors: Syafwansyah Effendi M. , Hendrawan Ahmad , Khafidz Arifin M. 
Published: March 2021

AbstractConventional food drying by using ambient air is the oldest and widely applied method to preserve agriculture product. This method, however, shows several challenges, e.g. contamination problem, inhomogeneous drying process, difficulty in control of water content which may lead to product degradation. Contamination during this method could be due to many factors, e.g. dirty air, insect, wind which may carry out garbage and animals’ sewage and rain. An alternative solution to overcome these challenges is by developing solar dryer method. This method is widely applied particularly in the area with abundant supply of solar energy. In this research, solar dryer is equipped with wavy plate consisting of two ducting. Two ducting design is expected to result in higher drying temperature compared than one ducting. The research was worked out through experimental method. Data of solar radiation, temperature of ambient air and drying room collected in this research was then synchronized with speed of drying process. The prototype developed in this research showed that drying speed could achieve 8.51% per hour.
Design of the three-phase axial flux generator with eight permanent Neodymium magnets for charging battery 12 Volt
Authors: Utomo Satryo Budi , Irawan Januar Fery , Hadi Widyono , Indah N. , Aldhea  
Published: March 2021

Abstract
Today with the depletion of primary energy in the form of petroleum and coal, which has led to soaring prices of oil and coal, resulting in swelling in electricity costs in Indonesia. The swelling is also because 85% of electricity fuel is petroleum and coal and added by the development of technology in this era, which will require more electricity resources to supply the needs and demands of consumers to the state electricity company. Therefore, making research modeling as a power plant whose potential energy found in nature will be needed. In every power plant, there will be generators that will be necessary to convert mechanical energy into electrical energy. In design in axial generator flux with opposite poles, they have 12 coils on both stators, each of which has 375 turns connected in series with 8magnets Neodymium Iron Boron (NdFeB)on the rotor. The diameter of the wire email used in this generator is 0.5 mm. Tests carried out using a battery 12 Voltas a load, with the treatment of the cell, is charging using an axial generator flux. Experiments of the voltage, current, and rotational speed of the rotor to determine the power and efficiency of the generator carried out before and after the rectifier 3 phase. The rotation variation will produce harvesting energy. This research employs the system harvesting energy to charge 12 Volt lithium batteries. The test results show that change flux this magnet produces a voltage of 20 volts and a current of 0.288 A, and the interaction of the magnetic field between Aluminum-Cu electrons is capable of producing a current of 0.288 A.
The effect of sweet orange peel addition into premium gasoline on fuel consumption and flue gas emissions
Authors: Musyaroh  , Wijayanti Widya , Sasongko Mega Nur 
Published: March 2021

Abstract
This study offered an investigation as to how the use of sweet orange peel oil as an additive for premium gasoline can increase octane performance which influence combustion. Sweet orange peel oil-acting as a RON booster-contains monoterpene compounds and oxygenated hydrocarbons which can improve the quality of combustion. The study also aimed to analyze the combustion characteristics of premium gasoline mixture affected by sweet orange peel additives on SI engines. This study carried out tests on an engine fuel consumption and HC emissions. The cyclic rings and methyl groups of monoterpene compounds in sweet orange peel additives contribute to the increase of electronegativity of additives, therefore being able to interfere with the premium gasoline’s compounds which are dominated by aromatics hydrocarbons. It has an impact on the branches of single-bond molecules series of premium gasoline. This makes the premium gasoline cannot be ignited at low temperatures, which results in perfect combustion. In addition, the polarity of triacetin and eugenol, which includes oxygenated hydrocarbons, is able to reduce CO as the avoided gas in combustion. Sweet orange peel additives—processed by maceration extraction method—are added to premium gasoline. There are 3 ratios of additives in this study; orange peel essential oil extracted with a concentration ratio of dried orange peels simplicial to n-hexane (v / v) of 1% (EO A); 0.75% (EO B); and 0.6% (EO C). To determine the effect of the additive, exhaust gas emission testing and fuel consumption measurement were carried out on the 2013 Honda Absolute Revo motorcycle 4-step, SOHC, 1 cylinder, 109.17 cc engine. The exhaust gas, i.e. CO, HC, CO2, and O2 were analyzed using a Stargas-898-type gas analyzer. Furthermore, fuel consumption measurement was carried out at 3500 rpm engine speed. The results show that CO could be reduced by 37.7%, while the remaining O2 was reduced by 17%. The addition of sweet orange peel additives could increase CO2 levels in exhaust gases when compared to premium gasoline combustion without additives. However, the premium gasoline with additive A (EO A) blend tends to produce higher hydrocarbon emissions compared to other types of premium additive proportions. In conclusion, adding sweet orange peel additives to premium gasoline can reduce fuel consumption by 3.3%; 3.2%; and 3.4% for each blend, respectively.