bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and Fabrication of Biodegradable Microneedle Using 3D Rapid Prototyping Printer
Authors: Mansor Nur Hazwani Azyan , Markom Marni Azira , Tan Erdy Sulino Mohd Muslim , Adom Abdul Hamid 
Published: November 2019

Abstract
Microneedle is known as transdermal drug delivery (TDD) devices that uses to deliver biological fluid into veins and needle that use to tear skin to collect blood sample. It involves with various parameters and designs. This device gain attention as its benefit can eliminate pain and more convenient compared to intravenous injection due to its micron size. Typically, microneedle is fabricated using MEMS technology. However, this technology requires few processes such as deposition, etching and moulding, as well as consume much times. This paper presents a work of design and fabrication of solid microneedle using 3D rapid prototype printing. A few types of microneedles are designed and they are analysed in terms of stress and force characteristics. Also, it will study the ability of a few materials to withstand stress while force exerted on it. The selected materials are polyvinyl alcohol (PVA), polylactic acid (PLA), polyester resin and acrylonitrile butadiene styrene (ABS). The results show that PVA has the highest ability to withstand force compared other materials. As conclusion, the design and fabrication of microneedle using 3D rapid prototyping printer is succeed using PVA material and real post-analysis can be conducted to test the capability for medical practice.
Atrial Fibrillation Identification through ECG Signals
Authors: Yee Ng Joe , Vijean Vikneswaran , Awang Saidatul Ardeenawatie , Fook Chong Yen , Chin Lim Chee 
Published: November 2019

Abstract
This paper presents an algorithm formulated to identify the atrial fibrillation complications through electrocardiogram (ECG) signals. The ECG data for the study was retrieved from Physio Net which consists of normal, atrial fibrillation and other rhythms. The Discrete Wavelet Transform (DWT) was used to remove baseline wanders. Pan Tompkins algorithm was utilized to detect the P, Q, R, S and T peak and thus the ECG signals were segmented based on each cycle. The morphological features were extracted directly from the time-series while statistical features were extracted after Stockwell transform (S-transform) was applied to the data. Genetic Algorithm (GA) and reliefF algorithm have been applied separately to select the optimum features for classification purpose. Bagged Tree ensemble algorithm, Decision Tree and k-Nearest Neighbour (KNN) algorithm were used as classifiers to identify atrial fibrillation through ECG signals. The classification results with and without feature selection techniques are presented. Prior to the feature selection, Bagged Tree is the classifier best performing classifier with 86.50% of accuracy, 84.38% of sensitivity and 91.94% of specificity. After feature selection, all the three classifiers have almost the same performance which is nearly 100% of accuracy, sensitivity and specificity. This shows that the proposed combinations of algorithms are reliable and able to improve the identification rate of the normal, atrial fibrillation and other rhythms using lesser number of features.
Image Enhancement Using Modified Partial Contrast Technique in Ziehl-Neelsen Sputum Slide Images
Authors: Raof R. A. A. , Mashor M. Y. , Noor S. S. M. 
Published: November 2019

Abstract
Image contrast and brightness for sputum slide images are among important factors that can affect the accuracy of image analysis process. Microscopic images usually have the problem of low contrast and blurry, which are caused by a couple of factors such as uneven thickness of the slides and manual preparation of the slide in the first place. In this research, image enhancement procedure has been considered for either increasing the image quality, increasing the visibility of tubercle bacilli or to ease the segmentation process. Partial contrast technique is considered for the contrast enhancement method. The results show that the modified technique helps to improve tubercle bacilli visibility. Hence the resulted images would become useful for the microbiologists and technologists for further analysis of Ziehl-Neelsen (ZN) sputum slide.
Analysis of Radiosonde Temperature Profile Measurement in Pamengpeuk
Authors: Rahayu S A , Maryadi E , Sunarya R , Nugroho G A , Triani L R 
Published: November 2019

Abstract
Indonesia is a tropical maritime country that has high complexity in terms of atmospheric dynamics. Understanding of atmospheric conditions is very important to obtain valid knowledge and atmospheric models. This understanding can be obtained through adequate data support. Vertical atmospheric data is very limited so it is necessary to develop equipment to be able to measure and provide valid data. one of the equipment used to measure the atmosphere vertically is called radiosonde. The development of this radiosonde has been carried out by various parties, one of them by PSTA LAPAN. This development is focused on the antenna system and the accuracy of the temperature data received. The antenna that is designed is an Omni 5/8λ antenna integrated with LNA. Receiving radiosonde data using antenna up to a height of 36 km. The temperature data that has been obtained is validated using radiosonde Vaisala and Meisei data. The temperature analysis is done by using Mean Bias Error (MBE) and Root Mean Square Error (RMSE). After being compared with the reference data, the RMSE values of 1.2 and MBE 2.3 were obtained with a correlation of 0.9. From these results it can be seen that the temperature data obtained is in accordance with atmospheric conditions, so this temperature sensor can be used for vertical atmospheric measurements.
Effect of Wet-Ethanol on Fuel Consumption and Soot Emissions on Direct Injection Diesel Engines with Jatropha and Solar Cold EGR System
Authors: Faoji Ahmad , Syaiful  , Sinaga dan Nazarudin 
Published: November 2019

Abstract
Diesel engines have excellent performance and high efficiency. The increasing use of diesel engines has resulted in increased use of fossil fuels and air pollution. Addition of castor oil to diesel fuel increases smoke emissions due to higher viscosity than diesel fuel. Therefore the addition of wet-methanol in diesel fuel and European oil can solve the problem of diesel engines. This study aims to evaluate the effect of adding wet ethanol to fuel consumption and soot diesel engine emissions. The test uses the Isuzu 4JB1 engine equipped with the Cold EGR system. The percentage mixture of wet ethanol fuel is 5%, 10%, and 15% based on volume. The results showed that the addition of Wet-ethanol to diesel and fuel mixtures in Europe caused a decrease in the value of fuel consumption and soot emissions. The highest reduction in smoke opacity occurred on the DJ10WE15 fuel of 16% while the reduction in fuel consumption occurred in DJ10WE10 fuel by 11%.
Performance of dethridge wheel as low head power generator and loss analysis
Authors: Heriyani O , Mugisidi D , Luhung R A , Djeli M Y , Fikri A 
Published: November 2019

Abstract
This research to measure the performance of dethridge wheel using a very low head as a driving force and analyze losses in the testing system. The parameters measured in this research are flow rate (m3/s), water velocity (m/s), water level (m), torque (Nm), and rotation (rpm). Debit is a variabel that is given treatment with variations in the difference between the initial flow rate and the next is 0.002 m3/s. The highest efficiency resulted in the first flow rate of 43.314% with hydro power of 1.862 watts and the power of the water wheel 0.806 watts. The higher increase flow rate causes the losses that occur are also grater, the state of the flow is more turbulent, and the loss due to force and fiction increase water.
Deposition Time Variation on Thickness and Resistivity of Cu/Ni Thin Film Obtained by Magnetic Field-Assisted Electroplating Process
Authors: Khansa Muthi’ah Lutfia , Toifur Moh. , Khusnani Azmi , Pramudya Yudhiakto 
Published: November 2019

AbstractThin films of Cu/Ni have been synthesized by the electroplating method assisted by a magnetic field on the variation of deposition time. The use of magnetic fields in the deposition process to increases the rate of electroplating and reducing the effect of hydrogen evolution so that the surface morphology of the layers becomes homogeneous. Deposition time affects the thickness of the formed layer. The electroplating is carried out at a DC voltage of 1.5 volts, the magnetic field of 200 gauss, a solution temperature of 60 °C, and an electrode distance of 4 cm with Cu as a cathode and Ni as an anode. The electrolyte solution made from the mixture of H3BO3(30 g), NiCl2(195 g), NiSO4(45 g), and H2O (750 ml) and deposition times varied from 5 s - 45 s with intervals of 10 s. The characterization was done by thickness test using the calculation of the mass, and resistivity of the Ni layer by using the four-point probe. The results indicate that the deposition time is proportional to the thickness of the formed layer and inversely proportional to the resistivity. Ni layer thickness ranges from 1.48 x 10-2μm to 5.02 x 10-7μm. while the sheet resistivity is from (4.87 ± 0.02) x 10-3Ω/sq to (1.38 ± 0.06) x 10-3Ω/sq.
Numerical simulation of the width and angle of the rotor blade on the air flow rate of a 350 kW air-cooled eddy current dynamometer
Authors: Sinaga Nazaruddin 
Published: November 2019

Abstract
Design of cooling part of air-cooled eddy current dynamometer plays an important role since the temperature rise will dramatically drop the load capacity. The research aims to investigate the effect of the rotor design on the air flow rate of a 350 kW air-cooled eddy current dynamometer, which has 16 blades and a rotor diameter of 520 mm. The impacts of the rotor blade width and rotor speed, as well as inlet and outlet angle, were analyzed against the air flow rate. The variation of the blade width was 50 - 90 mm, the inlet angle was 55° - 73°, the outlet angle was 17° - 35°, while the rotor speed was 750 to 3000 rpm. The finite volume method was used to solve the problem. It was found that the addition of the blade width would increase the air flow rate so that it could increase the heat transfer rate and the power absorbed capacity. There were an optimum inlet and outlet blade angle, which generated the maximum air flow rate. The optimum inlet and outlet angle was 64° and 26°, respectively. The study concluded that there are optimum parameters which give the best dynamometer performance.
Enhancements in cure rate index and mechanical properties of silica-filled natural rubber using octadecanol-fatty alcohol
Authors: Surya I , Ginting M 
Published: November 2019

Abstract
The enhancements in cure rate index and mechanical/tensile properties of natural rubber (NR) filled with silica because of the addition of octadecanol (OCD)-fatty alcohol (FA) were investigated. The silica as a reinforcing filler was compounded into the NR at a fixed loading, 30 parts per hundred rubber (phr.). The OCD-FA was derived from the oil of palm kernel and compounded into the NR as an additive agent. The loading variations of OCD-FA were 0 to 4 phr. It was found that the OCD-FA functioned as a curative and plasticizing agent for the silica-filled NR compounds. As a co-curing agent, the OCD-FA enhanced the time of scorches and cure rate index-CRI of the compounds of NR. A higher the OCD-FA loading caused in a higher CRI degree. As a plasticizing agent, the OCD-FA decreased tensile moduli but increased elongation at break. It was also found that the OCD-FA increased both tensile strength and abrasion resistance of the compounds of NR up to a 2 phr. of loading. The addition of OCD-FA with a 2 phr. of was an optimum loading for the compounds of NR.
Sensor Fabrication for Determination of Cadmium Using Nafion/Ionic Liquid/Graphene Composite with Thick Film Technology
Authors: Tresnawati Teni , Debataraja Aminuddin , Manurung Robeth Viktoria 
Published: November 2019

AbstractThe cadmium (Cd (II)) detection sensor consists of working electrode, counter electrode and reference electrode made with thick film technology on sensitive material-based carbon electrodes (G/N/IL/SPCE) and coated with Bismuth film. Carbon (C) paste, Ag | AgCl is used as working electrode, counter electrode and reference electrode material on alumina substrate by screen printing. The working electrode was doped with Graphene (G), Nafion (N) and Ionic liquid (IL). Furthermore, Bismuth-Film (BiF) is coated with electrodeposition on the surface of the working electrode. Electrode characterization with SEM is conducted to see the morphology of sensitive materials. It showed that the particles were distributed evenly on the surface of the electrode with spherical particles. Analysis using EDS shows the element’s atomic composition is C 91.57%, N 3.48%, O 3.23%, Bi 0.01%. The performance of the cadmium sensor was tested with a potentiostat in a standard Cd solution with a concentration of 0.005 mgL-1– 1 mgL-1indicating an average output voltage range of 10.36 volts - 10.37 volts. This can be explained that the sensor can detect Cd (II) content properly according to performance.
Fuzzy Features for Facial Shape Classification on Panoramic Dental Image
Authors: Nafi’iyah Nur , Fatichah Chastin 
Published: November 2019

Abstract
Research on human face shape identification can assist forensic teams in reconstructing an unidentified victim’s facial features. Human face shape identification using panoramic dental imaging is suitable for use by forensic teams in identifying a large number of victims due to the teeth’s ability to withstand heat of up to 1,000°C. This study proposes an application for face shapes classification on panoramic dental image using fuzzy features and decision tree method. It will be used to assist forensic scientists in reconstructing unidentified people identifying numerous victims from their facial features. There are three classifications of human face shapes, namely oval, tapered, and square. The steps in this study are digitizing panoramic dental images into files; segmenting the upper jaw’s incisor teeth; then extracting the features by area, parameter, width, length, width-to-length ratio, area-to-parameter ratio, center_x and center_y. Fuzzy theory is used to convert numeric features into category features, while decision tree method will be used for training features. The experimental results show that the proposed method obtain accuracy 67% of 42 panoramic dental image.
Link quality decrement and spectrum crowded impacts to wireless local area network performances
Authors: Suherman S , Rambe A H , Mubarakah N 
Published: November 2019

Abstract
Wireless local area networks (WLANs) are now preferred for high speed internet connections. Compared to cable network, radio propagations are more prone to errors and interferences. The increasing internet users push more access points (APs) installations. Moreover, mobile devices tethering work at the same channels. Since the networks operate on the free license frequency bands, problems are emerged when many collocating APs work at the same area. As results, network performances may decrease. This article investigates how the radio link quality decrement as well as the crowded APs affect user performances. System modelling in Java and repeating simulation help the investigation. As results, it is proven that network performances, such as delay, throughput and packet collisions are affected by those conditions. Link quality decrement up to 1/10 causes packet transmission delay increasing 2.5 times which causes throughput drops about 30% in unsaturated condition. Meanwhile, crowded APs worsen network performances by leaving only 8% throughputs when collocating APs increase from 2 APs to 10 APs.
Development of Door Safety Fingerprint Verification using Neural Network
Authors: Yudhana Anton , Sunardi  , Priyatno  
Published: November 2019

Abstract
Fingerprints can be used as natural keys. The unique fingerprint of a human being is potential for the security system. This research develops the door safety fingerprint verification using Neural Network. The component used in this research is fingerprint C3 as input processed by Arduino Uno ATMega 2560. After a fingerprint scanning process is done, the microcontroller identifies the fingerprint image. From the microcontroller forwarded the relay module process with solenoid output. Arduino can be read by a computer using the Arduino IDE. Identification during registration via C3 sensor verified using the MATLAB application with the Neural Network method. The design created produces forward and backward solenoid motion, after being given an electric current between 5 to 12 Volts. The MATLAB application will verify the fingerprint image and display the image from the results of the verification done with the user. Research has been tested 10 times with various types of fingerprints with 100% verified so that this study was declared successful.
Snake Fruit Seeds Flour-Fortified Jelly for Supplementary Feeding in Adolescent Girls with Anemia
Authors: Nugraheni M A , Indarto D , Pamungkasari E P 
Published: November 2019

Abstract
Anemia still becomes a public health problem over the world. Adolescent girls are one of the most suspectible groups who suffer anemia and have significant impacts on their health and study achievement. Fortification with high Fe natural ingredients is commonly used to overcome anemia in public setting. Therefore, the aim of this study was to evaluate the effect of snake fruit seed flour (SSF) on body weight (BW) and BMI/age of adolescent girls with anemia. A total of 20 adolescent girls participitated in this study and randomly divided in control group and treatment group. They received 3 × 100 g jelly/week for 8 weeks. BW and BMI/age was measured in day 0, 30, and 60. Collected data were analyzed using paired t-test and ANOVA and p value < 0.05. Average of BW in control group was higher than in treatment group but it was not statiticaly different (p = 0,374). Average of BMI/age in control group was higher than in treatment group but it was not statiticaly different (p = 0,348). Administration of SSF does not influence BW and BMI/age in adolescent girls with anemia. Further investigation is required to verify wether or not SSF contains high carbohydrate and fibers.
Growth of Sunu Grouper (Plectropomus leopardus) Larvae That Given Rotivera (Bachionus rotundiformus) Enriched with Taurine and Glutamine
Authors: Rostika R , Iskandar  , Herawati T , Bangkit I , Banthani G , Dewanti L P 
Published: November 2019

Abstract
This study aims to determine the effect of taurine and glutamine enriched Brachionus on the growth and survival rate of Sunu Grouper (Plectropomus leopardus). This research was conducted in Marine Research and Fisheries Extension Center Gondol, Bali. The study was conducted for 1 month on September 2017. The research method used was using Completely Randomized Design (CRD) consisting of 4 treatments and 4 replication, namely treatment A (without Taurine and Glutamine; (B) 0,5 gram Taurine / 10 L media; (C) 0,5 gram Glutamine / 10 L media; (D) 0,5 gram Taurine and 0,5 Glutamine / 10 L media. The age of Sunu Grouper was D-2 until D-10, parameters observed were Survival Rate, Average Daily Length, Relative Growth Rate, number of Brachionus in the digestive tract, and water quality. Which included DO, temperature and pH. Data were analyzed using analysis of variance with F test with 95% confidence level and the difference between treatments was tested by Duncan multiple-range test, then water quality was analyzed descriptively by comparing to related literature and water quality standard according to SNI 1999. The results showed that the use of 0,5 gram Taurine and 0,5 gram Glutamine enriched Brachionus, had an effect on the growth of Sunu Kerapu.
Biocellulose isolated from the waste of pinecone flower (Pinus merkusii Jungh Et De Vriese)
Authors: Lusiana S E , Aisiyah M M , ‘Uyunin U Z , Nasihin Z D , Srihardyastutie A , Rahman M F , Masruri M 
Published: November 2019

Abstract
A bio-cellulose isolated from pinecone flower waste has been isolated by two type procedures. The first method is commonly used in industrial protocol. It is undergone via delignification and bleaching processes. In the delignification process provide a black-liquid of lignin waste, meanwhile the bleaching process afford neutralized clear liquid. The bio-cellulose is the main product. On the hand, the second method is initiated by soxhlet extraction using three different solvents i.e. n-hexane, ethanol and toluene, respectively. The extraction process produces organic hexane extract, ethanol extract, and toluene extract. All these extract have different appearance in color and prospective. Further delignification and bleaching process provide black lignin waste and neutralized liquid waste. The bio-cellulose still also become a major product.
Genotype and Serotype Identification of Hepatitis B Virus in Chronic Hepatitis B Patients Treated with Telbivudine
Authors: Purnamasari Y , Tien  , Arimaswati  , Syarifin A N K , Ali A , Massi N 
Published: November 2019

AbstractHepatitis B is an inflammatory liver disease caused by hepatitis B virus (HBV). In Indonesia, the prevalence of Hepatitis B Surface Antigen (HBsAg) is 9.4%, categorizing the country as endemic hepatitis B. HBV has been classified into at least ten genotypes and four serotypes. Each genotype has different clinical significance and virologic characteristics, which can be an independent risk factor of Hepatocellular Carcinoma in addition to the male sex, older age, and positive Hepatitis B Envelope Antigen status. Telbivudine antiviral therapy suppressed the virus, but in case of resistance mutations, the mutant might grow continuously due to drugs inefficiency. This study aimed to detect the genotypes and serotypes of HBV in hepatitis B chronic patients after 12 weeks of telbivudine treatment. The subject of this study involved 26 patients with chronic hepatitis B, receiving 12 weeks treatment of telbivudine in the gastrohepatology division of the RSUP Wahidin Sudirohusodo hospital. The HBV genotype was identified by analyzing the HBV P gene, while the serotype was detected by deducing the nucleotide of the HBV S gene that overlapped with the P gene. Nine samples (75%) were genotype b, and three samples (25%) were genotype c. for serotype, six (50.0%), three (25.0%), and three (25.0%) samples wereayw, adw, andadr, respectively. genotype b is generally associated with less progressive liver disease than genotype c. genotypes b and c are prevalent in highly endemic areas in which the perinatal or vertical transmission play an important role in spreading the virus.
Total and Differential Cells of Leukocyte Mice (Mus musculus) On Evaluation In Vivo Anticancer Extracts Ethanol Marine Sponges Aaptos suberitoides
Authors: Nurhayati A P D , Pratiwi R , Soekardiman  
Published: November 2019

Abstract
The aim of this research is to know activity of ethanol extract from marine spons Aaptos suberitoides in total number and differentiation leukocyte cells which induce by carcinogenic agent Benzo(a)pyrene. METHODS. Mice (Mus musculus) were grouped in 6 group, group I (healthy mice), group II (induce by CMC Na), group III (treatment by cyvlophospamide), group IV (administered by spons extract 500 mg/kg BW), group V (administered by spons extract 1000 mg/kg BW) and group VI (administered by spons extract 1500 mg/kg BW). Benzo(a)pyrene induced for 10 days (5 times). The doses that given is 0,3 gram / 0,2 ml CMC Na. Mice were killed and the blood were taken. The sacrificed and blood sampling were taken. The total number and differentiation of leukocyte cells is made by smear method. RESULT AND DISCUSSION. The result of this examination is there were average total number of leukocyte cells in group I was 10,800 cells/μl, II and VI group were 3,700-5,500 cells/μl, the groups III, IV, V of 2,100-5,500 cells μl. The number of neutrophils and lymphocytes showed a significant difference (P <0.05) while the monocyte was no significant difference (P> 0.05).