bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hypertonie x 5
Authors: Uphoff Angelika 
Published: May 2020

SummaryDie essenzielle Hypertonie ist mit etwa 90 % aller Fälle die häufigste Form des Bluthochdrucks; drei von vier Patienten über 60 Jahre nehmen Blutdrucksenker ein. Der Beitrag stellt Ihnen fünf Fallbeispiele der essenziellen Hypertonie aus der Klassischen Homöopathie vor. Der gemeinsame Nenner: psychischer Stress als Mitursache. Aufgrund der sehr unterschiedlichen Symptombilder wird in jedem Fall ein anderes Mittel benötigt: Calcium carbonicum, Argentum nitricum, Sepia, Staphisagria und Nux vomica.
Den Kopf über Wasser halten
Authors: Nagersheth Kalyani , Mittwede Martin 
Published: May 2020

SummaryIn Stresssituationen kommen bei Menschen laut Ayurveda die Eigenschaften stärker zum Vorschein, die den vorherrschenden Doshas entsprechen. Der Ayurveda kennt bei Stress und Stresssymptomen sowohl konstitutionstypische als auch allgemeine Maßnahmen der Therapie und Prophylaxe. Der zentrale Punkt der ayurvedischen Tagesroutine ist die Selbsteinölung. Sie wirkt unter anderem stärkend, schützend und entgiftend.
5G Channel Model for 28 GHz frequency in Palembang
Authors: Alfaresi B , Nawawi Z , Malik R F , Anwar K 
Published: May 2020

Abstract
Next generation wireless technology require a wide frequency band. Current technology use a frequency of below 3 GHz which cannot provide a wide frequency band due to quite dense frequency utilization. The mm-Wave frequency guarantee to provide a wide band frequency band. The use of mm-Wave frequency will be influenced by climate factors. The characteristics of a place will cause a different channel model. Channel Model is useful for minimizes errors and maximizes information transmission or bitrate in communication model. The Channel Model will be represented as a PDP (Power Delay Profile). Channel model performance uses the Outage performance parameter in Shannon Theorem Implementation. Validation results using the CP-OFDM system with 5G BPSK. The parameters used for validation are FER and BER. In this paper, channel models will be analysed based on the characteristic of Palembang area as a reference channel model in Outer of Indonesia. Hopefully, it can be used as a reference for the development 5G wireless system.
Ultrasonic Sensor Application As A Performance Enhancement Of Robot Two Wheels
Authors: Irdayanti Yeni , Kusumanto Rd , Anisah Masayu , Alfarizal Niksen , Erman Zarmariesyah 
Published: May 2020

Abstract
In this paper, Robot Two Wheels are developed further to improve performance or intelligence. A Robot Two Wheels is a robot that can move and balance itself on two wheels, maintain its position upright of the earth’s surface on a flat plane. The design includes the Arduino Mega 2560, accelerometer and gyroscope sensors, as well as proportional Integral Derivative (PID) control as the controlling method. Proportional Integral Derivative control is used to determine the magnitude of the DC Motor’s speed and rotary direction as the driver, based on the robotic body’s tilt angle to the surface of the flat plane. The angle of inclination is taken into consideration and the robot moves either in the forward or backward direction to balance itself. When operated, the self-balancing robot continuously rotates its motor in its efforts to balance at upright position. The self-balancing robot movement is not mapped to its range, where the robot will still move randomly to achieve balanced conditions. The concept of this paper is expand the ability of the robot to sense objects around it which is by adding an ultrasonic sensor as an object detector around it, including obstacles or walls around self balancing robots. Detection of obstructions by ultrasonic sensors will maintain the movement of the robot in the safe area to avoid the impact that can occur when the robot is trying to maintain balance.
Effects of Grid Frequency Drop on the Dynamic Performance of Full Converter Wind Turbine Generator
Authors: Shiddiq Yunus A. M. , Saini Makmur , Suwasti Sri , Purwito Purwito 
Published: May 2020

Abstract
Recently, wind turbine generators connected to the grid is increased significantly. It has reached about 540 GW worldwide installation in the mid of 2018. One of the popular wind turbine types is Full Converter Wind Turbine Generator (FCWTG). It has a capability in extracting more energy compared to fixed speed type and also could contribute some amount of reactive power when the grid is required. Although frequency deviation rarely occurs in a grid side, it might be important to investigate the effects to FCWTG as FCWTG is very sensitive to a grid fault. In this paper, a deviation of frequency at the grid side is applied to investigate the dynamic performance of FCWTG during the rise and down frequency at the grid side. The system under study is carried out using Matlab/Simulink and the simulation results show that the grid frequency drop of 47.5 Hz has been started to cause the unstable dynamic performance of FCWTG. The worse scenario of grid frequency drop of 45 Hz could even lead the FCWTG to get damage.
Modified Design of Water Metering System
Authors: Latifah Husni Nyayu , Dampito  , Abdurrahman  , Evelina  , Silvia Handayani ade , Rasyad Sabilal , Anisah Masayu 
Published: May 2020

Abstract
The analog flow meter has been widely used in Regional Water Supply Company (PDAM) to measure the amount of water flow consumed by PDAM customer. This analog flow meter has an inadequacy in converting water consumed into rupiah billing system. In this research, a modified design of water metering system was proposed. A system involving water flow sensor to detect water flow velocity in the form of pulses as the inputs of microcontroller was analyzed. The output of the flow sensor will be converted as information of how much water consumed and how much money (in Rupiah Currency) should be paid to the water company. These outputs will be delivered through SMS using SIM 800L. The result of the experiments show that the proposed modified design of the water metering system could fulfill the standard of the metering system.
Detection of Polymer Insulator Surface Based on the Effects of Tropical Climate Using Partial Discharge Signals Measurement
Authors: Sitompul Carlos , Nawawi Zainuddin , Jambak Irfan 
Published: May 2020

Abstract
One important component in the high voltage overhead lines placed on the transmission tower is the insulator. When polymer insulators are installed in tropical climates, there will be two conditions occurs, such as: i) the changes from wet to dry will cause the pollutant particles in the air will attach to the surface of the insulator. This condition will cause the sedimentation on the surface of the insulator; ii) the changes from dry to wet will form a conductive layer that leads to the leakage current flow. The flow of leakage current leads to the formation of dry-band on the surface. The formation of a dry band creates an electric arc or PD and can eventually cause a flashover insulator. Laboratory experiments were carried out at different levels of pollution and RH. PD signals in the form of leakage current flowing to the ground are transformed by HFCT. PD patterns are collected through an innovative PD detection system. PD signals measured in the form of PRPD patterns are evaluated using the concept of equivalent band-width and time-length equivalent to understand the pollution performance of polymer insulators. The width of the frequency field produced from the experiment can be the basic of analysing the severity of the surface pollution of outdoor polymer insulators.
Mechanical Degradation Model of Porous Fe Scaffold: Simulation Approach
Authors: Teguh Prakoso Akbar , Rendiko Ichsan Achmad , Syahrom Ardiyansyah , Putra Md Saad Amir , Hadi Abdul Wahab Abdul , Sulong M. A. , Mohd Ghazali F.A. , Basri Hasan 
Published: May 2020

AbstractThis paper proposes a simple degradation model that estimates morphological changes in pure iron scaffolding due to surface erosion. The main contribution of this work is to estimate the degradation of porous pure iron scaffolding and analyze the impact of morphological changes on mechanical properties. In this study, the pure iron scaffolding model was designed in CAD software with 3 different porosity such as 30%, 41%, and 55% respectively. The geometry images of CAD models with a resolution of 3316 x 5530 pixels are captured layer by layer with a thickness of 0.02 mm. The purpose of this method is to replace the function of the u-CT scanning technique. Two-dimensional morphological erosion is applied to reduce the number of pixels of the image model. This erosion process is adjusted iteratively with increasing number of pixels to erode the image model until the volume of the scaffold after reconstruction matches the volume of the model undergoing mathematical calculations. Their changes in the volume of scaffold geometry and degradation of mechanical properties were evaluated using finite element analysis. This study found that mechanical properties such as elastic modulus and yield strength decreased systematically during the 19 week degradation period. In addition, deformation analysis is performed on models based on finite element analysis.
Conduction Heat Rate Analysis of Tool in AISI 4340 TurningProcess
Authors: Ismail T , Amrifan S M , Riman S , Irsyadi Y , Sandro O , Fatiandari A 
Published: May 2020

Abstract
In the turning process a very high temperature is generated from the friction of cutting tool and workpiece. In the turning process there is also contain heat transfer reaction that occurs due to rising temperatures during the turning process. The high temperature in the cutting process has a very important influence on increasing the amount of heat that produce during the process of machining. Therefore it is necessary to analyze the effect of the rake angle and the use of LN2 and SCCO2 as a cooler to the heat transfer rate on the cutting tool using Autodesk simulation mechanical 2017 software. Based on the simulation results obtained temperature distribution values on the cutting tool during the AISI 4340 turning process using carbide tungsten as the cutting tool where the rake angle is 0°,5°, and 10°. Without using any coolant, the heat transfer rates are 30.613W, 28.386 W, and 26.160. By applying cooler such as SCCO2 and LN2 the rate of heat transfer decreases. With the application of the LN2 heat flow rate with rake angle 0°, 5°, and 10° decrease to 21.429 W, 19.191 W, and 16.965 W. The application of the SCCO2 heat flow rate on the tool with a rake angle 0°, 5°, and 10° will be 20.260 W, 18.479 W, and 16.252 W. Based on the result it is found that increased rake angle will cause a decrease in heat transfer rate. The application of SCCO2 and LN2 can reduce the heat transfer rate, therefore it can extend the cutting tool life.
Optimization Electricity Supply for Thousand Island Jakarta Province by Using Hybrid Photovoltaic-Wind Turbine-Diesel Generator-Crude Palm Oil (CPO) Power Plant-Battery System
Authors: Manurung Dharma , Dalimi Rinaldy 
Published: May 2020

Abstract
The Thousand Islands as part of the DKI Jakarta Province which has more than 110 islands with an electrification ratio of 100%. The electricity supply for the inhabitant islands in Thousand Islands region is supplied by State Electricity Company (PLN) with the on-grid interconnecting system on the medium voltage marine line I (SKLTM) along 76.79 km. Meanwhile Sebira Island supplies electricity using the Diesel Power Plant (PLTD) provided by the Regional Government (PEMDA). To increase the reliability of the SKLTM line I system in the Thousand Islands, SKLTM line II will be built along 67.7 km in 2018-2021. Based on the description of the development plan, this paper will redesign the electricity supply system with 100% renewable energy power plants in each of the 11 inhabitant islands in the Thousand Islands, namely the hybrid system of Solar Power Generation (PLTS), Wind Turbine Power Plant (PLTB), Diesel Power Plant (PLTD) and Crude Palm Oil (CPO) Power Plant (PLTBn CPO). The average annual solar radiation in the Thousand Islands region is 5.08 kWh/m2/day and the annual average wind speed at an altitude of 50 m is 3.29 m/s. To optimize the hybrid system modeling, the Hybrid Optimization Model for Electric Renewable (HOMER) Pro 3.11.2 software version is used based on the lowest Net Production Cost (NPC) and Cost of Electricity (CoE) value. The study showed that 7 inhabitant islands are recommended using Hybrid PV-Wind-Diesel such as Sebira Island with percentage 59.3% (PLTS), 38.5% (PLTB) and 2.2% (PLTD) with CoE 0.178 $/kWh and NPC $1,092,096.Other 4 inhabitant islands are recommended using 100 % PLTBn CPO only such as Tidung Island with CoE 0.274 $/kWh and NPC $15,076,130.
Innovation Utilization of Nitridation Method in Improving Hardness and Corrosion Resistance of Blacksmiths Crafts
Authors: Rasid Muhammad 
Published: May 2020

Abstract
Hardness and corrosion resistance are properties that must be possessed by blacksmiths. One of the main problems of this small blacksmith industry is the process of finisihings handicrafts, weak mechanical properties and poor corrosion resistance making it difficult to compete for a wider market nationally and internationally. The purpose and aim of this research is to assist the blacksmith craft industry in increasing hardness and corrosion resistance so that the results of these crafts can compete at the national and international levels. The Plasma Nitriding method and the field nitriding scale by spraying Nitrogen into the results of blacksmith crafts heated under recrystallization temperatures. On the scale of nitriding the field is by spraying nitrogen as a cooling medium on the results of the blacksmith craft that has been preheated at temperatures of ± 723 to 900 ºC. The hardness level of the blacksmith craft test specimens carried out by the nitriding process increased hardness (HRC) by 17.5% and with corrosion resistance increased by 35% from the row material.
Effect of the Utilizing Savonius Machine as Auxiliary Starting Device on the Performance of Darrieus Machine
Authors: Santoso D , Riady M I , Abidin Z , Yanto J , Dzaky M I 
Published: May 2020

Abstract
In the present study, the two installation methods in combining Darrieus machine to Savonius machine were applied. First, Savonius machine was directly mounted to the main shaft of Darrieus machine and another one it was mounted to the main shaft via one-way bearing. The result shows that the self-starting ability of Darrieus machine could increase of about 60% by combining it with drag device such as Savonius machine. However, the net power extracted by this combination is significantly decrease. In the combination of Darrieus-Savonius machine where the Savonius was directly mounted on the main shaft without one-way bearing gives power reduction 53%, while in the combination of Darrieus-Savonius machine where the Savonius was mounted on the main shaft with one-way bearing gives power reduction of about 29%. Savonius machine mounted to the main shaft via one-way bearing gives relatively lower impact in power extraction reducing of Darrieus machine instead of Savonius was directly mounted to the main shaft without one-way bearing. As conclusion that the combination of Darrieus-Savonius machines should be addressed to improve the starting ability only, it should not be addressed to improve the power extraction capability of Darrieus machine.
The Analysis Of Biogas Fermentation Time From Cow Manure On Fixed Dome Biodigester Batch Systems
Authors: Sajaruddin  , Kalsum Leila , Muchtar Zainuddin 
Published: May 2020

Abstract
Biogas technology from cow manure in Indonesia has been developing for a long time, but the application of its use as an alternative energy source is not yet widely developed, due to various unknown operations and processes. This research aimed to analyzed of biogas fermentation time in batch system of cow manure. This research used a Fixed Dome type biodigester that had a total volume of 500 litters with its operating system in batches with 80% of the slurry containing cow manure and the rest for the gas chamber. The biogas fermentation time were 5, 10,15,20 25 and 30 days. The raw material from cow manure had an organic COD content of 10.240 mg / l with a pH of 6.7. The C/N feed ratio was set in the condition of 25: 1 and the ratio of slurry of cow manure with water was 1: 1. From the results of the study in batch process, it was found that the longer the fermentation time the higher the methane gas content but the methane gas content decreases on the 30 th day from 59,12% on the 25 th day to 50,04% on the 30 th day of fermentation.
Diversification of Biscuit Product using Moringa Oleifera Flour as an Additional Source of Nutrition
Authors: Hilwatullisan  , Zaman M. , Husaini A. , Chodijah Siti 
Published: May 2020

Abstract
Nicknames for the Moringa tree include the Miracle Tree, the Tree of Life, and the Amazing Tree. One of the most prominent content of Moringa plants is antioxidants, especially in leaves that contain the highest antioxidants. This research is entitled Biscuit Product Development by utilizing Moringa Oleifera Flour as an additional source of nutrition, this study refers to the research master plan of the Sriwijaya State Polytechnic which aims to obtain useful products that can be marketed and increase product added value. The main objective of this research was to determine the effect of adding Moringa leaf flour to the quality of biscuits. The results showed that the addition of moringa leaf flour affected the water content, ash content, protein, calcium and vitamin C. The panelist cho ice biscuits were formula F2 biscuits with the addition of 2 grams of Moringa leaf flour or 0.1% and the result of formula F2 analysis was the water content by 3.85%, Ash content 0.78%, Protein 6.37% Calcium 164 mg/g sample, vitamin C 0.13%.
The Investigation on Physical Characteristics of Cracked Plastic Waste
Authors: Selpiana  , Susmanto Prahady , Cundari Lia , Oktari Dedek , Ibrahim Omar 
Published: May 2020

Abstract
The consumption of plastic gives many benefits however, uncontrolled use can bring about negative impacts on the environment. Plastic waste is a material that is difficult to decompose by nature or referred to as non-biodegradable. The catalytic cracking process is one way to process plastic waste. This study was conducted to determine the effect of cracking temperature and cracking time on the volume and physical properties of the produced liquid. The catalyst used is Cu-Al2O3 with a ratio of 20% of 200 g of raw material. In this study, the most liquid produced is 142 mL at a cracking temperature of 300°C within 150 minutes. The best physical properties (heating value, Octane Research Number, Octane Motor Number) produced from liquid condensate at 250°C and 120 minutes.
Effect of Temperature and Starter Concentration on the Fermentation Process in Making MOCAF
Authors: Yerizam Muhammad , Andayana Suri , Oktavia Utari 
Published: May 2020

Abstract
This research aims to determine the optimum conditions with variations in temperature and concentration of Lactic Acid Bacteria (BAL) starter in fermentation in the process of making mocaf flour. Fermentation of cassava is carried out using a fermenter equipped with a thermo controller and tubular heater. Heater is used to increase the temperature connected to the temperature controller (thermo controller) so that the fermentation process runs in optimum conditions and get good quality of mocaf flour according to SNI 7622-2011 standards. The fermentation process was carried out anaerobically with and varying the temperature of 30 and 33°C and the concentration of the lactic acid bacteria starter were 0.06%, 0.12%, 0.18%, 0.24% and 0.3% with fermentation time during 24 hours. The results showed optimum conditions of cassava fermentation at a temperature of 33°C and lactic acid bacteria starter concentration of 0.3% obtained mocaf flour protein levels of 12.87%.
Characterization of Red Beetroot Soft Jelly Candy with Guava Extract and Gel Colloid Added
Authors: Meilianti  , Aznury Marta , Yuniar  , Sofia  , Farhan Ismy , Agustina Lidia 
Published: May 2020

Abstract
Red beetroot is widely planted in the highlands in Indonesia. The content of vitamins and minerals is very useful in stimulating, building, cleaning red blood cells and can prevent the lack of red blood cells in the body. Beet tubers are enriched by high red phenotype pigments compared to orange and white. The red pigment is a high antidote to free radicals. Red beetroot is not only used as a natural coloring agent but can also be used as a sweetener because of its high sucrose content. However, beetroot is less popular because of its unpleasant taste and aroma. Beets and guava are innovations from food processing that have nutritional value to be used as a useful product. Red beetroot is processed into one functional food product in the form of soft jelly candy with a mix and hot process. The method used in this study is the extraction method and cooking by heating (80°C ) with stirring. The stages of the research include the stage of sample preparation, fruit extraction, jelly candy making, and the testing stage. Determination of the endpoint of making jelly is done by the fork test. To improve the characterization of jelly candy is to add guava extract and pectin. Characterization of jelly candies analyzed was water content, ash content, glucose content, sucrose content, and metal Pb metal content. Based on the results of research that has been done on the characterization of red beetroot soft jelly candies with variations of guava extract and colloidal pectin gel have met the SNI standard of soft jelly candies with the results of water content (0.96-2.28%), ash content (0.27 0.56%), glucose contents (18.06-22.11), sucrose content (17-20%), Pb metal content (0.026 ppm)
The Effect of flowrate and NaOH Concentration to CO2 Reduction in Biogas Products Using Absorber
Authors: Trisnaliani Lety , Eka Pranata Dina , Fatria  , Tahdid  , Ridwan KA , Nurizzman Alfarizi M. , Pandapotan Lumbantoruan Mangihut 
Published: May 2020

Abstract
Biogas is one of the alternative energy sources that can be updated and can reduce national energy dependence on fossil energy. Biogas has the main composition namely Methane (CH4), Carbon Dioxide (CO2) and Hydrogen Sulphide (H2S). The CO2 content in biogas is still quite large. This causes the efficiency of heat produced is still low so the quality of biogas is still not optimal. Therefore, it is necessary to absorb CO2 content using an absorber. In the Absorption process using clamshell packing as filling material in the absorber column which serves to expand the sensitivity of biogas with absorbent (NaOH). In this study, the variables studied were the effect of flow rate and NaOH concentration on CO2 reduction in biogas so that the purpose of this study was to obtain the optimum conditions from the effect of flow rate and NaOH concentration on CO2 levels. The results of the analysis and calculations obtained showed that the optimum conditions of the absorption process occurred at the flow rate of 9 liters/min and 2 M NaOH with CO2 absorption of 8.1972 grams. In this study, the variation of the flow rate used was 6,7,8,9 and 10 liters/min and variations in the concentrations of 0.5 M NaOH, 0.1 M, 1.5 M, 2 M and 2.5 M NaOH concentrations of 8.6526 grams of CO2 absorbed. From the laboratory analysis, the rate of CH4 and CO2 in biogas was 58.5% by volume and 27.6% by volume while the content of CH4 and CO2 in biogas after absorption was 66.1% volume and 18.0% volume.