bluuebunny/crossref_metadata_2025_split huggingface dataset:
Benthos population in seagrass ecosystem at Bira Island Kepulauan Seribu, Jakarta Indonesia
Authors: Komala R , Miarsyah M , Wulaningsih R D 
Published: December 2019

Abstract
One group of organisms that can be used as bio indicators of water quality is benthos, these organisms are spread over several habitats and also in coastal areas, one of which is in the seagrass ecosystem on Bira Island, located in the Kepulauan Seribu Jakarta. The aim of this study was to determine the dynamics of benthic population as an illustration of the environmental conditions on Bira Island for 6 months of observation. The method used in this study was descriptive with survey design. Data collecting by purposive sampling with the transect method at 3 observation stations. The data were analyzed descriptively through the calculation of abundance, diversity and dominance. The results of the study identified 23 species of benthos included in the 3 phylum with the largest to lowest composition represented by molluscs, arthropods and echinoderms phylum. The benthic population fluctuates and shows a pattern of decreasing trends every month during observation. The abundance of the highest species of each phylum is represented by Turicula javana (Mollusc), Portunus sp (Arthropods) and Holothuria atra (Echinoderms). The Species Abundance based on the observation station shows that the highest abundance is at station 1, followed by station 2 and the lowest is station 3. Benthos diversity at each station is in the moderate category, and there is no species dominates.
Growth pattern and lenght-weight relationship of Rhyacichthys aspro, in The Cisadea River, West Java, Indonesia
Authors: Paujiah E , Solihin D D , Affandi R , Sa’adah S , Zulfahmi I 
Published: December 2019

Abstract
During development, the organisms such as fish species generally increase in size (length, weight). Length-weight relationships or condition factor in R. aspro species were analyzed separately by sex and location. This study aims to determine the growth patterns and Length-weight relationships in the R. Aspro fish species that were captured in the Cisadea River, West Java, Indonesia. This research was conducted from June 2012 to February 2013. Fish sampling from the field was carried out for six months from June to November 2012. Sampling was carried out at the station that had been determined by Purposive Sampling which could represent the upstream, middle and downstream of the river. The parameters measured consisted of growth patterns and factors conditions for fish (Length-weight relationships). The data then analyzed using the Excell 2007 computer program and uses the FAO-ICLARM Stock Assessment Tool II (FISAT II) program. The results showed that the correlation coefficient (r) R. aspro showed a value of 0.90 for male fish and 0.78 for female fish. Based on different sexes, the fish growth pattern in all gender has a positive allomatic (b> 3). Based on location, the fish growth pattern has positive and negative alomatric patterns. There are differences in conditions both based on gender and location. The length-weight relationship R. aspro is allometric with condition factor values ranging from 0.16-2.05. As conclusion, the lenght-weight relationship of R. aspro is allometric with different condition factor. the The results of this study can be used as baseline data for the management of aquatic resources in these locations or other locations.
The effect of cage density on the quality of broiler chicken meat
Authors: Mardewi N K , Rukmini N K S , Rejeki I G A D S , Astiti N M A G R 
Published: December 2019

Abstract
One of the maintenance management of Broilers is the regulation of cage density. In the tropics, cage density affects comfort in a cage, high temperature and humidity are the main causes of stress in chickens. Cages with in apropriate densities have a negative impact on meat production and quality performance. The study aims to identify cage density to the quality of broiler chicken meat. The study used a completely randomized design with 3 treatments, namely density 8, 10 and 12 tails per square meter, each treatment was repeated tree times. The result showed that the difference in cage density in the maintenance of broiler chicken up to the age of fine weeks did not affect meat quality. It is recomended maintenance with a density of 12 tails broiler chicken up to age of 5 weeks can be done without affecting the quality of meat.
Biostratigraphic analysis based on planktic Foraminifera from well X in North Sumatra Basin
Authors: Syavitri D , Setiawan R , Jambak M A 
Published: December 2019

Abstract
There have been several studies conducted in the North Sumatra Basin, but there is a scanty information related to the age of the Formations in the basin. The aim of this study is to establish the age of the Formation. A total of 128 ditch cutting samples are used for lithostratigraphy analysis, in which 33 samples were analysed further for the Foraminifera biostratigraphy study from the well X at a depth of 6090 – 9919 feet. From the result of the analysis, 38 species from 16 genera successfully identified, as well as 5 datum species, namely FO Globigerinoides sicanus, FO Orbulina suturalis, FO Globorotalia menardii, FO Globorotalia plesiotumida and FO Globorotalia tumida. From the lithology data, three (3) lithostratigraphic unit successfully identified, namely the calcareous claystone, very fine calcareous sandstone and fine calcareous sandstone unit which is estimated to be comparable to the Baong, Keutapang and Seurula Formation. From the result of the study it’s concluded that the lithostratigraphic units found in the study area have the age range of N7-N18 or the late Early Miocene to the Late Miocene.
Application of lake sludge and natural phosphate on spinach plant cultivation (Amaranthus tricolor L.)
Authors: Mahardika I B K , Arjana I G M , Nango E O 
Published: December 2019

Abstract
Lake sludge and natural phosphate can be applied to the cultivation of various plants, but have not been applied to spinach cultivation. The aim of the study was to determine the effect of Lake Sludge dosage and Natural Phosphate dosage on growth and yield of unripe spinach. The experimental method with factorial RCBD used in this research. The results showed that the interaction between the treatment of lake sludge doses and natural phosphate doses did not significantly influence all observed variables. The highest yield for total dry weight per plant was obtained from the treatment of 150 g/polybag lake sludge which was 8.07g, and in the treatment of 40 g/polybag of natural phosphate dose which was 7.31 g. Both of the regression analysis between the dosages of Lake Sludge and Natural Phosphate with total oven dry weight per plant there is a linear relationship.
Utilization of natural surfactants from saponin compound of coconut leaf waste (Cocos Nucifera L.) as an environmentally friendly liquids detergent
Authors: Sari K , Setiawan I K I 
Published: December 2019

Abstract
The purpose of this study was to find out the results of the effectiveness of detergent detergency against stains on white cloth based on organoleptic tests and to determine the results of measurement tests for pollution levels with parameters of COD (Chemical Oxygen Demand), DO (Dissolve Oxygen) and pH levels in each treatment. This research is an experimental study with a Completely Randomized Design (CRD) or Randomized Complete Block Design method, which takes 5 treatments, namely two types of control groups including negative control (K-) by adding distilled water and positive control (K +) by adding detergent contained on the market, and there are 3 treatment groups, namely P1, P2 and P3, respectively with concentrations of 2.5%, 5% and 10% respectively. The instrument used for the extraction process is the Rotary Vacuum Evaporator and the instrument used for testing pollution levels is a set of titration tools with iodometric titration methods. The results obtained showed that the second treatment (P2) was the best treatment with an average detergency power of 3.10 or with faded parameters evenly with the edges of the stain that faded and had a minimum pollution level i.e. COD value 7.9 mg / L, DO value was 9.2 mg / L and pH level of 5.02, so that it qualifies as a low-contaminant liquid detergent that does not damage the environment.
Innovative green technology for SMEs
Authors: Hamdani N A , Herlianti A O , Solihat A 
Published: December 2019

Abstract
The increasing human need for natural resources causes global warming. Innovative green technology is one of the eco-friendly actions that can be taken by small and medium sized enterprises (SMEs). The purpose of this study is to discover how SMEs can possibly use green technology. To this end, an explanatory survey was conducted on a sample of 286 batik business units. The results reveal that there are several innovative green technologies that can be used by SMEs. The findings of this study may imply that innovative green technologies can be used to improve SMEs environmental performance.
Identification and implementation hybrid fuzzy logic and PID controller for speed control of BLDC motor
Authors: Anshory I , Robandi I , Wirawan W , Jamaaluddin J 
Published: December 2019

Abstract
One of the problems in the optimization process in the Brushless Direct Current (BLDC) speed control system is to obtain a mathematical model in the form of a transfer function. The purpose of this study to mathematically model BLDC motors in transfer functions, and optimization using Proportional, Integral and Derivative (PID) controllers, and fuzzy logic to tune PID controller parameters. The first method used is the process of identifying input and output data from the BLDC motor physical system. The input and output data of the test results simulated to form a mathematical model. The mathematical model of BLDC motor used as the basis for carrying out the optimization process with open loop systems, PID controllers, and fuzzy logic. The results of the research on the optimization process of the BLDC motor speed control system with the fuzzy logic methods obtained the best value for rise time value of 1.25 seconds, settling time value of 382.10 seconds, and peak time is 382.2 seconds. With these results, it shows that the fuzzy logic has given a better transient response than the PID controller in increasing optimal stability.
Forecasting of wind speed using Exponential Smoothing and Artificial Neural Networks (ANN)
Authors: Affan M F , Abdullah A G , Surya W 
Published: December 2019

Abstract
Wind energy is an environmentally and efficient energy source that is popular. Wind energy can be converted into electrical energy to meet the electricity needs of the community. This research presents results of Bandung’s wind speed forecasting for the next 5 years which aims to determine the wind speed potential in Bandung and plan for the application of a power plant to meet the electricity needs of community, using Exponential Smoothing and Artificial Neural Network (ANN) methods), simulation process of the calculation use Zaitun time-series software. Based on simulation results forecasting value with the least error value is obtained using the Artificial Neural Network (ANN) method. The results of the study determined that the city of Bandung was not suitable for the establishment of a wind power because it did not meet minimum wind speed limit suitable for a wind power.
Railway level crossing warning design in rural area using ultrasonic sensor and wireless communication
Authors: Rukmana A , Ikhsan A F , Etnisa M M , Sulisawati H , Nurichsan I 
Published: December 2019

Abstract
Collisions between train and roadway user in a level crossing in a rural area are the most railway accidents. A warning device for the level crossing is required to avoid the accident between roadway users and the train in the level crossing. The system shall independent from the existing railway system so that no disruption on the traffic of the train. This paper present a level crossing devices system based on ultrasonic sensors and wireless communication. Master control will display the result of detection using buzzer alarm, warning lamp, and train passage direction. Train passage warning with direction helps the roadway user to get a better awareness of incoming train and eliminate assumption of train passage direction. Especially in double track railway in a rural area, in case dual train enter the level crossing from left and right direction, the roadway users sometimes only aware on the first train passage and ignoring the second train and lead to the accident.
Analysis of the impact of distributed generation injection to stability of 20 kV distribution network system
Authors: Sucita T , Mulyadi Y 
Published: December 2019

Abstract
This study took a case study at PT. PLN (Persero) APJ Area Bandung with the subject raised is the installation of Distribution Generators on the distribution line of 20 kV. The purpose of this study was to determine the effect of generator installation Distribution of stability on a system of 20 kV distribution with load conditions is considered balanced. The reason for conducting this research is to find out how far DG can maintain stability on each bus. The method used in this study is to compare the results of the simulation of power flow and short circuit interference using ETAP Power System software. The results obtained from the power flow simulation before installation DG voltage drop at the end of the line. While the three phase short circuit fault current before the DG installation at the beginning of the line is x. After installation of DG with an injection of 50% power DG obtained a voltage drop at the end of the line of y and a fault current at the beginning of the line of z. While the injection of 90% of the power obtained by the voltage drop at the end of the line is v and the fault current at the beginning of the line is w. The results of the study show that with the injection of DG can increase the voltage profile on the line. Likewise, the interference current has increased, but it can be overcome by placing the location of the DG from the fault site.
Engineering design development of 52,5 KiloWatt peak solar photovoltaic system for industrial Rooftop building
Authors: Damiri D J , Legino S , Amboro S 
Published: December 2019

Abstract
The purpose of this research is to develop on-grid engineering design of 52,5 KW photovoltaic system on Industrial Rooftop Building. The development of solar photovoltaic system is to satisfy high demand of electrical energy for industry, offices, and public with minimum cost. Taking consideration of green energy, solar energy might be chosen as an alternative to generate electric power by utilization of Rooftop on industrial building. This research was conducted using broad database of meteorological data i.e. global daily horizontal solar irradiance. Additionally, Rooftop photovoltaic development, layout plan, photovoltaic array connection, Single Line Diagram and structure support photovoltaic module were developed using Helioscope and PV Syst software. Based on 6 months’ period simulation, annual energy produced on Rooftop is 1043.88 kWh/kWp, Global Horizontal Irradiance (GHI) 1301.96 kWh/m2, actual Global Horizontal Irradiance 5.6%, and performance ratio (PR) 80.30 % and capital Rooftop photovoltaic project forecast. This results can be used for industrial and big office in west Indonesian recommendation to develop solar energy system on Rooftop building
Designing web-based and android application to monitoring and estimating price of the use of water discharge
Authors: Susilawati H , Hidayat T M , Maulana I , Rahayu S , Nurichsan I 
Published: December 2019

Abstract
Water discharge is a measure of the amount of water volume that can flow or be disposed in a place in one unit of time. The research goal is to calculate the amount of water discharge and the bill for every use of water that has been used by the customer. Monitoring the use of water discharge will use the IoT (Internet of Things), with a microcontroller as a processor or input and output processing of the sensor used. The sensor used in this plan is the water flow sensor using ESP8266 module through the Internet as a data communication between tool and software. The data transmitted is water discharge in each use of 10 litters. This research will use prototyping method to know about the use of water and the price that must be paid each month from customer’s phone. The form of application is web that is created for the admin (Server) and Android application for the customer. On the next process, this design can be directly applied for the use of calculation of discharge and the bill for local government.
Spatial neural network for forecasting energy consumption of Palembang area
Authors: Rif’an M , Daryanto D , Agung A 
Published: December 2019

Abstract
Spatial Neural Network proposed as a new approach to determine the level of energy consumption in the future in the Palembang region, South Sumatra. Back-propagation is used to train Artificial Neural Networks. Population size, Gross Regional Domestic Product (GRDP), economic growth, Household Energy Consumption spatially per sub-district is used for this estimate. Data for 2008-2012 is used to train Spatial Neural Networks (ANN) and Data for 2013-2017 is used to validate this new approach to electricity demand prediction. The proposed Spatial ANN approach provides relatively good predictions about energy demand in acceptable errors and high accuracy for electricity demand predictions.
Information of parking place availability through the use of proximity inductive sensor based on IoT
Authors: Susilawati H , Wiharso T A , Hidayat T M , Ikhsan A F , Rukmana A 
Published: December 2019

Abstract
An availability of a parking place in the shopping centre remains becoming a problem since the vehicles often enter the parking area without being sure about the available parking space left in the parking lot. This research was intended to design information system regarding the availability of parking place for the vehicles when entrancing the shopping centre. Through this information system, the entering vehicles will just need to go to the available parking place. This research employed prototyping method by using microcontroller as input data processor, Inductive Proximity sensor, Wi-Fi module, and Web application. When vehicles come into the parking lot A, the sensor will provide the data on the Arduino about the available parking place in the parking area A, and then the data will be sent to the Web application by using Module Wi-Fi so that the web for the parking place A will get information about the availability and the unavailability of the parking place in that parking area. There will be also a description about the available parking place on the other parking places such as in the parking lots B and C. Through this research, the parking place for the vehicles will be more well-organized and the vehicles will be eased to look for an available parking space when they go into the shopping centre.
Narrow Band Power Line Communication (NB-PLC) frequency band review under residential load noise
Authors: Mangunkusumo K G H , Priambodo N W , Tofani K M , Supriyadi G 
Published: December 2019

Abstract
Advanced Metering Infrastructure (AMI) is the foundation of the Smart Grid system. One of the most important parts of AMI is smart meter communication. Power Line Communication (PLC) technology utilizes the existing power line network for communication media between smart meters and Data Collector Units (DCU). One of the biggest challenges of communication using PLC is the noise level due to residential loads. In this study, laboratory test set up to measure noise caused by PV rooftop and residential loads are observed. Each PLC frequency band was measured and observed to determine the suitable frequency for PLC communication which was the low noise level. Some experiments in the field were conducted to determine the performance of the PLC. Laboratory test measurement result shows the FCC band (150-490 kHz) was outside the range of PV rooftop and residential load noise. On the other hand, the Cenelec A (35-90 kHz) frequency range was in the range of noise signal. Therefore, NB-PLC G3 using FCC frequency band was proposed to achieve robust data communication and lower noise level. G3 PLC FCC band was tested in the real field residential area, the experimental results showed 97.62% successful rate within one-week data collection.
Investigation of high voltage ACSR transmission line dead end connector fault
Authors: Simaremare A A , Priambodo N W , Pramana P A A , Munir B S 
Published: December 2019

Abstract
Transmission line plays important roles in delivering electric energy from generation site closer to the customer. Failure of a transmission line can cause significant economic loss due to undelivered energy and may lead to catastrophic system black out. One critical part of transmission line is dead end connector, thus ensuring good condition of transmission line dead end connector is critical to avoid extensive losses. This paper investigates the cause of failure of dead end connectors that were installed in 150 kV ACSR lines. The failed connectors were examined and tested to find out the cause of the breakdown. Several samples of suspected bad connectors are also tested for comparison. Simulations using finite element software were conducted to provide broader insight on failure propagation. The investigation found that the dead end connectors were failed due to high current flowing through the steel part of the conductor which is caused by high contact resistance between the aluminium part of the conductor and the connector. Further study is needed to mitigate similar condition to occur in the dead end connector installation.
Measurement device for detecting oxygen saturation in blood, heart rate, and temperature of human body
Authors: Suprayitno E A , Marlianto M R , Mauliana M I 
Published: December 2019

Abstract
The progress of science and technology must be able to help resolve human medical problems for human survival. In this study, integrated measurement of oxygen saturation in the blood, heart rate and temperature of the human body have been made into one tool whose measurement results are displayed directly on the LCD display on a measuring instrument and an Android Smartphone. This tool uses Arduino Nano as its Microcontroller, Bluetooth as wireless serial communication with Android smartphone, Android Application Made with MIT App Inventor, MAX30100 sensor is used to measure blood oxygen saturation and heart rate, and MLX90614 sensor to measure body temperature. Testing Measurements that have been made are calibrated with Industrial standard measuring instruments (Oximeters) and digital thermometers. The result is that the accuracy of the tool reaches 99.62% for blood oxygen saturation measurements, 97.55% for heart rate, and 99.62% for body temperature when compared with industry standard devices. Android applications have been successfully installed on 5 types of smartphones with different brands and specifications. The Bluetooth range of a measuring device for a smartphone in maximum data transfer is 29 meters without a hitch and a maximum of 21.5 meters with obstacles.