bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identification and the prevalence of fungal gouramy (Osphronemus gouramy) in modern market Surabaya
Authors: Andreas M S , Kusdarwati R , Suprapto H 
Published: February 2021

Abstract
Gouramy (Osphronemus gouramy) is the one type of fish consumption that are quite popular in Indonesia. Modern market provides a wide range of needs such as fresh fish. Sales of fresh fish in modern markets in Surabaya could reach 80% annually. Required more careful handling against high transaction fresh fish in modern market including whether there is disease in fresh fish like fungus. This research aims to learn about identification and the prevalence of fungal infecting gouramy at modern market Surabaya. Results of the study showed that of the 10 samples taken fron 5 location, 7 fish showed positive fish infacted by the fugus. The fugus are Trichoderma, Rhizopus oryzae, Saprolegnea, Aspergillus flavus, and Fusarium. The value of the prevalence of fungus which infects fish gouramy is 70%.
Substitution of commercial feed with fermented banana peel flour (Musaceaea sp.) and fish meal to feed consumption level, specific growth rate, feed efficiency, fat retention, and energy retention in siam catfish (Pangasius hypophthalmus)
Authors: Aisyah A , Gustiningrum A S , Agustono  , Al-Arif M A 
Published: February 2021

AbstractThis study aims to investigate the effect of commercial feed substitution with fermented banana peel flour and fish meal on feeding rate, specific growth rate, feed efficiency, fat and energy retention. This study used aCompletely Randomized Designwhich consisted of 5 treatments: P0 (100% commercial feed), P1 (commercial feed 95% + 5% FTKPTI), P2 ( commercial feed 90% + 10% FTKPTI), P3 (commercial feed 85% + 15% FTKPTI), and P4 (commercial feed 80% + 20% FTKPTI). Data were analyzed usingAnalysis of Variance(ANOVA) and continued withDuncan’s Multiple Range Test. The results of statistical analysis showed that commercial feed substitution using fermentation of banana peel flour (Musaceaeasp.) And fish meal resulted in feed consumption values, specific growth rates, feed efficiency, fat retention and energy retention which had no significant differences (p> 0.05). This shows that commercial feed substitution using fermentation of banana peel flour (Musaceaeasp.) and fish meal up to a dose of 20% in feed has the same feed consumption, specific growth rate, feed efficiency, fat retention and energy retention values as well as the control feed.
Molecular identification and prevalence of ectoparasite worms in barramundi (Lates calcarifer) in Lampung Waters
Authors: Achmadi I , Subekti S , Ardiyanti H B , Amiin M K , Haryanto L N F , Akbar R E K , Yudarana M A 
Published: February 2021

Abstract
Barramundi (Lates calcarifer) fish is one of the fishery commodities in Indonesia which has economic value and is the most exported commodity. The problem that often occurs in the process of cultivating barramundi (Lates calcarifer) is a parasite from the Haliotrema sp. which attacks the gills and can cause a decrease in the level of fish production. One way to determine the parasite infesting barramundi (Lates calcarifer) is by conducting a molecular identification. This study aims to determine the parasites by molecular identification and prevalence rate of ectoparasite worms in the gills of barramundi (Lates calcalifer) fish in Lampung waters. A sample of 40 fish with a length of 25-35 cm was taken by using a purposive sampling method. The organs observed were fish gills, then molecular identification was carried out by using real-time PCR, and the prevalence calculations. The results of this study indicated that the fish gills were infested by ectoparasitic worms, according to the NCBI GenBank database, called Haliotrema susanae with the band at 748 bp, and the prevalence rate of infested fish with gill’s ectoparasites is 80%.
Utilization of Nitrosomonas sp and Nitrobacter sp probiotic towards total suspended solid and ammonia level in nile tilapia culturing using aquaponic system
Authors: Dwiardani K H , Prayogo  , Rahardja B S 
Published: February 2021

AbstractNile tilapia (Oreochromis niloticus) is an aquaculture commodity which has high production and tendency to be cultured in intensive culturing system. However, the latter can accumulate high amount of organic waste (leftover feed and fish feces) which will cause poor water quality by increasing total suspended solid (TSS) level and ammonia level as well. The solution to the prior problem is by using the aquaponic system with the addition ofNitrobacterandNitrosomonasbacteria in the probiotic application. Still, the effective probiotic dosage is yet to discover, so that this study aims to figure out the effective dosage of the probiotic to decrease TSS and ammonia level. This study used RAL as research design with 5 treatments repeated 4 times: control (no addition of probiotic), 0.5 mg/L, 1 mg/L, 1.5 mg/L, and 2 mg/L. The result shows that 1.5 mg/L is the most effective dosage which can decrease TSS and ammonia level into 16.18 ± 0.0571 mg/L and 0.178 ± 0.0673 mg/L respectively.
The influence of garlic (Allium sativum) and turmeric (Curcuma longa) extract as attractant in commercial feed on feeding rate and fat retention in gouramy (Osphronemus gouramy)
Authors: Pamungkas G Y , Arief M , Arif M A A 
Published: February 2021

Abstract
Gouramy fish known as fish that has slow growth but the demand is always increasing every year. Feed improvement can be developed by adding attractants to the feed. Attractant will produce an odor that will attract fish to eat. The sulfur components that dominates garlic is believed to be attractant, while in turmeric the terpenoid can add aroma to the feed. Furthermore, the sulfur components in garlic and curcumin in turmeric can increases fat metabolism. Feed energy can be seen from the calculation of the amount of fat consumption and fat retention. The method used in this study is an experimental method with 5 treatments; P0= control, P1; 1% garlic extract addition, P2; 1.5% garlic extract addition, P3= 1% turmerix extract addition, and P4= 1.5% turmeric extract addition. The results showed that the addition of 1-1.5% turmeric extract was able to reduce fat consumption, while the addition of 1-1.5% garlic extract was able to reduce the fat retention of gouramy. It can be concluded that giving 1-1.5% garlic extract does not affect the fat consumption of gouramy but reduces fat retention, while the addition of 1-1.5% turmeric can reduce fat consumption and doesnt affect fat retention of the fish.
Combination of biodiesel, glycerol, and methanol as liquid fuel
Authors: Rubianto L , Sudarminto H P , Udjiana S 
Published: February 2021

Abstract
Waste frying oil is a harmful liquid to human body and environment. However, it can be utilized as fuel. Transesterification of waste frying oil with methanol is presence of potassium hydroxide as catalyst produces fatty acid methyl ester (FAME) known as biodiesel as main product with glycerol as byproduct. Previously, several researches have been carried out concerning about utilization of both substances as renewable liquid fuel. In this research, three materials biodiesel, glycerol, and methanol which involved in transesterification process are combined in order to determine another renewable liquid fuel. Combination with composition 1:1:1 to 1:1:4 (v/v) is burned in an external combustion engine. Viscosity of glycerol is the main problem to form fuel for the engine. The result shows that the higher percentage of the methanol, the easier is the combustion. Composition by volume 1:1:4 of biodiesel, glycerol, and methanol respectively is the best mixture of liquid fuel for boiler burner.
Potential study of motorcycle parking on State Polytechnic of Malang
Authors: Burhamtoro B , Raharjo N D , Marjono M 
Published: February 2021

Abstract
Parking is a vehicle that stops or does not move for a while and is abandoned by the driver. requires infrastructure for parking purposes while the available land is increasingly limited. The method of field research (Field Research Method) is direct observation at the location to see the physical condition of the movement of vehicles entering and leaving the location during rush hour. Meanwhile, research on the area of parking was carried out by means of digital map measurement (Digital Map Measurement Research Method), namely by measuring based on measurement results from digital maps. The number of motorbikes that entered was 5716 vehicles, while 1373 vehicles exiting with a volume of 4546 vehicles were parked. The parking area for motorbikes is 7,480.44 m2 with a parking area of 5,217.67 m2 and a circulation area of 2,262.77 m2.
Analysis of the needs road facilities in Jalan Soekarno Hatta Malang City
Authors: Ratnaningsih D , Wahiddin W , Subagyo U , Sasongko R 
Published: February 2021

Abstract
Pedestrians are an element of urban transportation. The Pedestrian movement includes down the road, crossing both on the road and at the intersection. The existence of adequate pedestrian facilities is needed, including crossing facilities. The number of pedestrians on the Soekarno Hatta road is very high while gap vehicles are short so that it is difficult for pedestrians to cross. The purpose of this study was to determine the need for crossing facilities on the Soekarno Hatta street in Malang. Primary data collection was carried out on March 9-11, 2020. Analysis results obtained by the number of pedestrians is 322 people and volume traffic 4867,1 pcu/hour, PV2 = 6,3. 109 so that appropriate pedestrian facilities are pedestrian platform.
Flood analysis of Buntung River and the structural measures in Sidoarjo Regency
Authors: Sulhan R A , Hapsari R I , Efendi M , Safitri M S 
Published: February 2021

Abstract
Sidoarjo Regency as one of the downstream areas of the Brantas River Basin is prone to flooding. This study aims to simulate the flood discharge and inundation in Buntung River, a river passes through Sidoarjo City area with several time return periods and to discuss its physical flood mitigation. Data needed in this study are Rainfall Data for 3 Rain Stations, topography map, cross section of river stream, and land use map. Based on these data, a flood flow analysis plan is then performed using the Nakayasu synthetic hydrographs method. The inundation is simulated using HEC-RAS with 10, 25, and 50 years return periods. Based on the calculation, Buntung River flood discharge with return period of 10, 25, and 50 years return periods is 151,342, 196,923, and 233,981 m3/s respectively. The inundation extend of 25 years return period is reaching 0,53 m height above the bank along Sta. P0 to P1. The study reveals that the existing cross section cannot accommodate the design flood for at least 25 years return period. Therefore, normalization is essential for river improvement. The channel is design with river cross-sectional shape of double trapezoidal. The size of the earth dike is 0.60 m above the flood water level with 3.0 m width and 1:2 channel slope. The designed river channel improvement increase the channel depth from -3,56 m to -4,07 m in Sta. P1. The normalized channel could accommodate the design flood and would be beneficial for increasing the urban area safety from flood disaster.
Optimization of heavy equipment for earthwork in the construction of Mainroad Section X of Pandaan-Malang Toll Road
Authors: Riskijah S S , Pradipta B A , Lidyaningtyas D 
Published: February 2021

Abstract
The construction of Mainroad Section X of Pandaan-Malang Toll Road requires of heavy equipment for excavation and embankment works. The type and number of the heavy equipment can be varied depending upon the construction volume, equipment capacity, and the budget. Therefore, the combination of heavy equipment must be chosen carefully to minimize the cost. This study aims to determine the optimum number of heavy equipment combinations with constraints of work volume, schedule, and resources availability to minimize the construction cost. The data needed is site lay-out plan, cross section of the road, project time schedule, specifications of the heavy equipment, and the resources unit price. The method for optimization is Linear Programming using Simplex Method. The results shows that the optimum combination of heavy equipment for excavation work are 14 units of bulldozer type Zoomlion ZD160-3, 5 unit excavator type Komatsu PC200-8MO, and 19 units dump trucks type Mitsubishi Fuso-FN627 at Rp 14.839.362.044,00. As for the embankment work, the optimum equipment are 5 units excavators type Komatsu PC200-8MO, 19 units of dump truck type Mitsubishi Fuso-FN627, 19 units of motor grader type Caterpillar 120K, 18 units of sheep foot roller type Ammann ASC-200, and 23 units of water tank truck type Mitsubishi-125HD at Rp 22.979.058.760,00.
Energy harvesting using microstrip rectenna circular patch on GSM 1800MHz frequency
Authors: Aisah A , Rahman A A A , Hariyadi A , Junus M , Yoga S W , Rafli A 
Published: February 2021

Abstract
This research discusses the design of rectenna with microstrip antenna with frequency BTS work frequency in Malang city by using a rectifier to convert electromagnetic power into DC output on GSM1800 working frequency and use the energy storage design to be stored. Harvesting this energy is alternative energy conversion. The produced electrical power can be used by low-powered-devices. Since the obtained power is small, additional circuits will be used so that the obtained power can be stored in energy storage. The power obtained from this research is around 1 to 16 mV. It is obtained from BTS around the Malang city.
Design and analysis of a portable web-based monitoring system for electrical parameters measurement
Authors: Hidayat M N , Ronilaya F , Eryk I H 
Published: February 2021

Abstract
Currently, to monitor the parameters of an electrical system, including current, voltage, power, and frequency can be done remotely by using either computers, laptops, or android mobile phones, as long as those gadgets are connected to the internet. Generally, the equipment of this monitoring system is installed in a module at a fixed position. As a measurement tool, it is required that the measurement values are valid. For this reason, to ensure that the measurements shown by the remote monitoring system that has been installed are valid, another monitoring system is needed as a comparison. Based on the problems mentioned above, this research aims to design and analyse a portable web-based monitoring system for electrical parameters measurement. This equipment has a web-based monitoring system, which can remotely monitor the measurement of electrical parameters through the web. In addition, the equipment is light and portable, which can be easily moved from one place to another. Due to its advantages, this equipment can be used as a comparative tool to get valid values for electrical parameters measurement.
Design and analysis of the effectiveness smart home control systems based on using the Internet of Things
Authors: Rohadi E , Susanto H , Sarosa M 
Published: February 2021

Abstract
Smart homes are a set of interconnected electrical appliances to become intelligent service systems aimed at reducing human workloads, saving electricity, and improving home security. Wireless Smart Home system enhances popularity due to flexibility, portability, and low installation cost. With the availability of technology and the internet of Things (IoT), devices can collect information from the environment according to the surrounding conditions. Raspberry Pi is a microcomputer which is a primary device that can be used to control sensors and actuators. This control can be activated from anywhere, as long as the area has an Internet connection. Using the fuzzy logic method, the controls don’t need to be done manually. This method can automatically control the electronic devices in the home, using the facts in the knowledge base. The main features of the smart home are real-time, remote control, data security from intruders. Data security becomes important to access right in maintaining the confidentiality of sensitive information that may be known by the right party. Technology systems are containers created in one library, applications, and configuration files, and all that is required to be a reference to rely on.
Impedance matching system design using non uniform transmission line for 2.4 Ghz antenna system
Authors: Zakaria N , Setiyawan A , Prasetyo Y H , Wardani M K , Yulianto A W 
Published: February 2021

Abstract
The Matching Impedance (MI) design method using Non-Uniform Transmission Line (N.U.T.L.) is a design method that offers more advantages over the 1/4 transformer method, the 1/4 multisection method, and the stub method. In this study, the Matching Impedance system is designed to match the WLAN antenna load with a line impedance of 50 Ohm at the 2.4 GHz. The Matching Impedance system is designed using a transmission line with a Characteristic Impedance (Zo) value that is triangular (Triangular Taper) distributed. This study also examines the effect of the number of cutting sections on a transmission line if the line with the Triangle distribution is implemented on a Microtsrip. From the test results, it is found that the number of sections used to form the Non Uniform transmission line has a significant effect on the bandwidth of the system working frequency for the required value of the Reflection Coefficient.
Design of HHO generators as producers of water fuel (HHO generator product analysis based on electric current and catalyst)
Authors: Jannah Z , Susilo S H 
Published: February 2021

Abstract
One of the fossil fuels is petroleum fuel. Petroleum is a non-renewable natural resource. Various aspects of life have felt its effects, where fuel oil has begun to experience scarcity. The higher price of fuel oil should make us realize that the amount of oil reserves has begun to run low. The purpose of this study was to determine the effect of electrodes, current strength, and concentration of NaHCO3 on the HHO gas generator output. HHO electrode generator material made of aluminum and brass. The electrode’s shape is rectangular with a size of 250 mm x 400 mm, with a gasket seal. The test begins with the HHO gas pressure test. The independent variable used is aluminum and brass electrode variations. The electric current given is 20A, 30A, 40A, and the amount of 5-25% NaHCO3 catalyst. Then proceed with analyzing the pressure obtained on the HHO gas flow rate. To test the HHO gas flow rate carried out with a duration of 1 to 3 minutes in each treatment, the measurement of the discharge using a gas regulator to determine the flow rate of H2 and O2 produced. The results showed that the lowest gas discharge value was on aluminum electrodes with a current of 20A, i.e., 0,00033554 m3/s, while the highest discharge value on brass electrodes with a current of 50A was 0,001657 m3/s. It shows that the better the metal element contained in the electrodes and the higher the current applied, the greater the flow of H2 and O2 gas flow.
Design locomotion for automatic guided vehicles using double ackerman inverted method (2WD-4WS-1A)
Authors: Karim A M , Setiawan B , Siradjuddin I 
Published: February 2021

Abstract
This paper introduces a robot vehicle designed for the same forward or reverse maneuver specifications. The vehicle has two two-wheel drives with a Double Ackermann Inverted (2WD-4WS-1A) steering method for Automatic Guide Vehicle (AGV). In the batch processing system industrial estate, AGV is used for transportation in the component warehouse area. In the steering system, Ackermann’s mechanics are described as optimizing the maximum maneuvering radius of the AGV, based on the turning center point. AGV drive is designed with four wheels, two drives and one steering mechanics. The vehicle’s mechanical steering system is designed with a system geometry analysis to control the turning radius of the vehicle. The Ackermann AGV steering method that has been implemented will be tested for its maneuvers. The results of the study were measured empirically to determine the efficiency and optimization of the system in the AGV design. The efficiency of steering control using only 1 steering wheel as 4 wheel control and small optimal radius on the AGV will increase maneuverability compared to using 2 WD.
Development of smart energy meter to measure energy saving of dimmable LED panel light
Authors: Parastiwi A , Prasojo R A , Adzani M N H , Safitri H K 
Published: February 2021

Abstract
Conserving energy is important now more than ever. Dimming lamps to the required illuminance is one way to reduce the energy usage. Technological advancement in the form of new materials, sensors, and apparatus allows us to reduce the energy usage of an equipment. To obtain a clear understanding of consumer energy usage, a smart meter which is able to monitor and store energy usage characteristics can be a useful tool to have. This paper discusses the development of multi-points smart energy meter using ESP32, ZMPT101B voltage sensor, and SCT-013 current sensor. The measurements result of the meter developed has been validated using commercial energy meter. A 35 W dimmable LED panel light benefitting dimming function in QH7938 chip has also been constructed. The dimming characteristics were obtained, with the output luminous flux of 5644 to 950 lumen, and power input of 35 to 5.32 watt. Subsequently, the energy saving case scenario in 2.5 x 2.8 x 3 meters home office with various natural lighting condition were also presented.
Design of flow control system based on PLC armfield pressure control module in chemical engineering laboratory
Authors: Suharti P H , Kristiana H M , Amalia R N 
Published: February 2021

Abstract
A control system in industry has an important role to increase the effectiveness and efficiency in manufacture process. Laboratory of Chemical Engineering Department in State Polytechnic of Malang has several tools to develop competence in automation process control system, one of them is the pressure control module. This module aims to control the rate of compressed air flow coming out from the compressor. Nonetheless, the control system used is still analog. In order to improve the performance of module, rejuvenation has created by PLC that is optimized by PID controller method. This rejuvenation process is carried out in several stages, such as designing PLC hardware and software then testing and analyzing the system. There are four stages in testing and analyzing the system, both testing and analyzing the open loop system without tank and with tank, PID close loop with tank and without tank. Based on the results, this study indicated that the close loop system with PID has a better response than open loop system, which is able to improve the errors and transient responses so that the system is more stable and fit with set point value. The PID parameter that produces a good response when used in the pressure control module is Kp = 100 Ki = 1 and Kd = 0. This parameter is able to produce a system measurement value of 80% with error of 0%.
Prediction of student graduation accuracy using decision tree with application of genetic algorithms
Authors: Maulana A 
Published: February 2021

Abstract
Many of students who can’t complete the study promptly is a problem that needs to be faced with a fast and effective way. In the student’s education system is an important asset to the note the graduation rate of students promptly. Predicting graduation is very important for the institution to determine the strategic policies for the institution. The scope of the study is limited in performing accurate comparison between studies that only use Genetic Algorithm method and the research-based Genetic Algorithm using forward selection. Here we can conclude that the value of the highest accuracy is there in the Genetic Algorithm-based method Forward selection. Thus the Genetic Algorithm method with the selection of attribute-based Forward Selection is the best method for solving a problem in the prediction accuracy of graduation.