bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preliminary study on EEG based typing biometrics for user authentication using nonlinear features
Authors: Amalina Intan , Saidatul A , Fook CY , Ibrahim Z 
Published: June 2019

Abstract
The application of password usage in databased user authentication method is unsafe, due to higher chance of off-line guessing attacks. Hackers are able to save our personal information and can detect them until the perfect match is acquired. Thus, the aim of this research is to examine EEG signals during typing task from three engineering students (right handed) with age of between 19 to 23 years old to identify the regular human typing pattern to differentiate between one user to another. All the subjects were asked to perform three times typing tasks for 5 minutes with rest in between for 30 seconds. The subjects were required to rest before and after performing the typing tasks for one minute. Truscan EEG device (Deymed Diagnostic, Alien Technic, Czech Republic) with frequency sampling of 1024 Hz and 19 channels was used. This study applied Infinite Impulse Response (IIR) notch filter to remove 50Hz powerline artefacts and proposed the implementation of nonlinear features such as Distribution Entropy (DistEn) and Approximate Entropy (ApEn). The features were extracted from channels F3 and F4. The extracted entropies features vector are used as an input to k-Nearest Neighbour (kNN) classifier. As a conclusion, the kNN and LDA classifier giving promising accuracy which are 82.22% (F3), 88.52% (F4), 94.81% (F3 and F4) and 80.37% (F3), 81.48% (F4), 89.63% (F3 and F4) respectively.
Software Defined Networks Security: Link Failure Analysis in SDN
Authors: Al-Junaid M A H. , Bin Mohd Warip Mohd Nazri , Badlishah Ahmad R , Mat Safar Anuar , Zunaidi I , Khairunizam Wan , Razlan Z M , Shahriman A B 
Published: June 2019

Abstract
SDN is the new network technology. Although SDN still new, it is inseparable from the issue of a link failure. By using SDN, link failure scenario can be simulated and collection of data can be analysed. Before creating link failure scenario, several topologies were needed to show similarities with traditional network. There are many topologies that can be created by using SDN because SDN already provide virtual network devices. Each network device will be build inside virtual network topology. With use of desired topology then link failure scenario can be implemented. SDN also need a controller that acts a “brain” to the network. The controller will be provide a routing algorithm to control the behaviour of the network when one or more links become fail to connect with host or controller. One of suitable controller was Ryu which can adapt to any traffic handler and already provide application resemble to network behavior. All software components will be simulated inside Mininet emulator, one of realistic virtual network application.
Path Loss with Doppler Shift Effect and Handover Delay Analysis on Cellular Communication for Connected Car Application in Urban Area
Authors: Hamid A F A , Rahman M T A , Rahman A , Zabidi M M M 
Published: June 2019

Abstract
In this paper, the study on path loss and delay of cellular communication is conducted by considering doppler shift fading effect, shadowing effect and handover session in urban area. The experiment will consist observation on three different wireless communication module. This three-wireless module will have different carrier frequency and radio interface technologies to determine the effect of doppler shift to communication path loss and handover delay of a moving vehicle. The path loss of a moving vehicle will be determined based on measured received power on communication modules antenna and transmit power from base station. Handover delay that experienced by a moving vehicle will be measured based on data transmission latency during communication session transferring from previous cell network area that pass by the vehicle to a new cell network area. From this experiment, the best selection of wireless communication module by considering doppler shift effect and handover delay in urban area is determined as suited module to be use on connected car system.
Effect of Voltage and Frequency in Pasteurization Pulsed Electric Field (PEF) Continous System of Pineapple (Ananas comosus [L.] Merr) Juice
Authors: Indriani D W , Amalia S , Sumarlan S H , Barunawati N 
Published: June 2019

Abstract
Pineapple which is one of the perishable commodities with high water content about 90.73% in 100 gr of fresh material. Thermal pasteurization has a weakness that can degrade the quality of fruit juice products. In contrast, non thermal processes have expectations which is don’t make decreasing quality of the product. One of the non-thermal pasteurization type called Pulsed Electric Field (PEF). Nowadays, PEF system have two type batch and continous, which respectively used in this research is PEF continous system. This study uses research methods group random design (GRD) with two factorial that voltage (20, 30 and 40 kV) and frequency (10, 20, 30 and 40 kHz). Based on these studies it is known that the voltage and frequency is significantly different to the value of Total Plate Count (TPC), and absorbance. However there aren’t significantly different with the pH, vitamin C, viscosity, total dissolved solid (TDS), total sugar and color. The treatment based on the microbial test are at a voltage of 40 kV and a frequency of 40 kHz which can reduce bacteria significantly 1.01x103 cfu/mL or 0.94 by log cycle with the effectiveness of microbial death by 88.5%. The treatment based on the microbial test are at a voltage of 40 kV and a frequency of 30 kHz which The result indicates that physical and chemical characteristic of pineapple juice become 3.98 of pH, total dissolved solid (TDS) of 6.25 °brix, total sugar of 14.75 % viscosity of 3 cp, vitamin C of 7.6 mg/100ml, absorbance of 0.67, color on the brightness (L*) value of 24.05, redness (a*) of 6.35, and yellowish (b*) of 7.5. This result shows that PEF continuous respectively work system to pasteurize the pineapple juice.
Simulation On Natural Convection Semi-Glazed Flat Plate Solar Collector For Green Bell Pepper Drying Application
Authors: Nelwan Leopold O. , Maulia Yulfi N. , Oktariski Delymi 
Published: June 2019

Abstract
A simulation on semi-glazed flat plate solar collectors under natural convection mode used for green bell pepper drying has been conducted. The solar collector has a 60% glazed area which was installed to the drying chamber with a 45o slope. The simulation consisted of the heating and drying process. For the heating process, a semi-empirical model of the buoyancy effect and heat balance was proposed. To determine the constants of the model, the non-linear least square method based on the experimental data of irradiation, ambient air temperature and the drying chamber temperature for no-load operation was used. Furthermore, for the drying process simulation was carried out based on the mass and energy balance of the product and the drying air as well as the drying characteristics of green bell pepper. The simulation results showed that in clear weather conditions, the temperature and air flow rate produced by the collector can be used to dry a stack of ten trays within effective time less than 20.6 hours or equal to less than three days sunshine.
Design Modification of Greenhouse Effect Solar-Hybrid Rack Type Dryer
Authors: Wulandani D , Agustina S E , Yulianto M , Nelwan L O , Rahman L M 
Published: June 2019

Abstract
Hybrid solar-type rack dryers are modified to improve efficiency and to save the drying energy. Modifications are made to the main components, namely; furnace and heat exchanger. The dimension of dryer was 1.8 m length, 0.7 m width and 1.8 m high. The dryer was equipped by 22 racks with dimension of 0.5 m x 0.65m. The furnace was modified to a cylindrical shape instead of rectangular shape and was designed with optimization of heat utilization and comfortable to be operated. To reduce heat loss, the wall of furnace was designed contact directly the drying room. The furnace material was iron galvanized plate with a thickness of 2 mm. The foregoing design of heat exchanger was tube bank type with horizontal fins attached on tubes. In this research, the adoption of vertical fins has enlarged the heat transfer area and increase the effectiveness of heat exchanger. The smoke flow from the combustion chamber of furnace was directed at the opposite side of the ambient air inlet for drying, so that smoke does not enter the drying chamber.
Exergy Analysis on Pyrolysis Process of Oil Palm Empty Fruit Bunch
Authors: Tiara Etika S , Susanto Ginting Agus , Setiawan Radite PA , Joelianingsih  , Tambunan Armansyah H 
Published: June 2019

Abstract
Exergy analysis is useful to evaluate the effectiveness of energy conversion process. This study is aimed to evaluate the effectiveness of oil palm empty fruit bunch conversion by pyrolysis process using the exergy analysis compared to the theoritical of the cellulose pyrolysis. The effect of pyrolysis temperature was evaluated based on the amount of selected syngas produced. The results show that Increasing the temperature of pyrolysis from 473 K until 723 K will increase the concentration of H2 and CH4, but it will reduce the concentration of CO. Based on exergy efficiency, the optimum composition of gases that can be produced in the pyrolysis process of 1 mol cellulose are 3 mol of H2, 5 mol of CO, and 1 mol of CH4 at a temperature of 723K. The maximum amount of exergy efficiency is 96.33% in the reaction 2. Based on Gibbs free energy, the maximum value of hydrogen will be produced start at temperature 628K.
Laboratory investigation on the properties of asphalt concrete mixture with GGBFS as filler
Authors: Al-Hdabi Abbas , Al-Sahaf Nibras A , Mahdi Layth A , Yesar Zahraa , Moeid Haneen , Hassan Mortada 
Published: June 2019

Abstract
Consuming of by product materials in build manufacture such as making of hot asphalt mixtures introduces worthy interest on the way of ecological, economic standpoint. Accordingly, in this experimenter research, it was scrupulous for using Ground Granulated Blast Furnace Slag (GGBFS) in state traditional metal filler in hot asphalt mixtures. The mechanical characteristic was rating by lineal Marshall Stability & Indirect Tensile Strength tests. However, moisture harm and long-range aging were investigated by locate Index of retained Strength (IRS) & Mean Marshall Stability Ratio (MMSR), respectively. The empirical outcomes have presented a considerable refinement in the mechanical properties and a fundamental promotion in durability of the generated mixtures i.e. Asphalt Concrete Mixtures with GGBFS as a mineral filler (GGBFSAC) in rapprochement with the control mixtures that were infectious by ordinary Portland cement (OPC) as a mineral filler (OPCAC). As an outcome of this research, GGBFS can be united in state classical mineral filler in asphalt concrete mixtures especially in region where there is large GGBFS waste.
The Influences of Different Bamboo Filler Loading on Tensile Properties and Impact Strength of RHDPE/BF Composites
Authors: Ahmad Kamal Aini Asifa , Noriman N.Z. , Sam S.T. , Al-Rashdi Awad A. , Johari I. , Razlan Z M , Shahriman A B , Zunaidi I , Khairunizam Wan 
Published: June 2019

Abstract
Recycled high-density polyethylene and high-density polyethylene reinforced with bamboo filler were compounded with twin-screw extruder and injection molding process. The main objective of this study is to investigate the effect of different loading of bamboo filler reinforced with recycled high-density polyethylene composites via injection molding. The fillers loading were reinforced with plastic for different loading which is 0 wt.%, 5 wt.%, 10 wt.%, 15 wt.% and 20 wt.% for two different matrixes, which is recycled high-density polyethylene and high-density polyethylene. Mechanical measurements will show the presence of different loading filler will insignificantly effect in the composites tensile strength and also impact. The result of the mechanical analysis carried out showed that the presence of natural filler in composites will improve the properties of the material.
Single packaging design of papaya (Carica Papaya L.) variety IPB 9 (calina) for transportation and distribution
Authors: Ismaya P L , Darmawati E , Setyadjit  
Published: June 2019

Abstract
Papaya Calina (Carica Papaya L) is one of the favorite fruits. The thin skin and soft flesh of the papaya, easily cause the damaged of papaya mainly due to mechanical damage at the distribution process. The distribution of papaya generally carried out in bulk and arranged on the vehicles without packaging. Improvements in packaging for distribution that combined with retail packaging will reduce mechanical damage and increase consumer appeal. The research objective is to design retail and distribution packaging. Retail packaging is designed for individual fruits made from polypropylene plastic bags and corrugated board. Distribution packaging are made from corrugated board. The weight of papaya is selected in the range of 700 g -1000 g with a diameter of 90.5 mm - 110 mm and a length of 225 mm -240 mm. Based on these data, retail packaging is designed in the form of fruit units of 250x125x 250 mm for plastic bags and 90x90x140 for corrugated. The distribution packaging is designed with half telescopic container type using the flute BC with two different positions, both of vertical and horizontal positions. The packaging with the horizontal position contains of 4 fruit per packaging, the dimensions are 410x250x115 mm (KS1) and for vertical contains of 6 fruit per packaging with dimensions 330x230x70 mm (KS2). Corrugated board packaging dimensions is designed by considering the efficiency of pallets or generally vehicles that used in product distribution. The efficiency of the packaging that arranged on the pallet with the size of 1200x1100 mm are 85.41% for KS1 and pallet with the size of 1067x1067are 80% for KS2, while for M5 vehicle with the size of 2200 x 1585 mm the efficiency is 82.56% for KS1 and M2vehicle with the size 2630x1460 mm the efficiency is 90,92% for KS2.
Determination of Mung Bean Seed Viability Change in Vacuum Packaging during Storage in Different Temperatures
Authors: Faisal M. , Ahmad U. , Wulandani D. 
Published: June 2019

Abstract
Mung bean seeds decreased their viability very fast during storage, especially in tropical area without proper packaging. The purpose of this study is to observethe decrease in viability of mung bean seeds during storage and to build a mathematical model for shelf life prediction. Dried mung bean seeds were vacuum packed and stored in Accelerated Shelf-life Testing chamber at five different temperatures of 30° C, 35° C, 40° C, 45° C, 50° C with approximately 80% in relative humidity, to facilitate rapid deterioration with different rate of physical and chemical change in the seed. The results show that there was an increase in moisture content and the germination decreased in different rates. Changes in values for some parametersof the seeds affected the viabilty of the seeds during rapid deterioration. The value of constant (k)for viability decreasing was calculated and used to build the mathematical model for predicting the shelf life of mung bean seeds during storage at any temperature. Using the developed model, it was observed that the shelf life of the Sriti variety of mung bean seeds in vacuum packaging could maintain 90% of germination level for 421 days or 14.3 months if stored at 20 °C, and for 173.37 days or 5.78 months if stored at 25 °C.
Synthesis and characterization of aloe vera-based edible film incorporated with shellac resin and hydrocolloids
Authors: Purwanti Nanik , Yunus Fajri , Darmawati Emmy 
Published: June 2019

Abstract
Aloe vera-based edible film usually has weak structure, thus it has low strength. Incorporation of shellac resin and gelatine/guar gum might create composite edible film with preferable properties. This research aimed to synthesis edible film of aloe vera gel that was incorporated with shellac resin and gelatine or and guar gum. The initial concentration of shellac resin was kept constant at 6% w/w; meanwhile the initial concentrations of gelatine were 4% and 6% w/w and of guar gum were 1% and 2% w/w. The ratio between SHGE/SHGG and aloe vera gel in the suspension (ALSHGE/ALSHGG) was 1:1. The suspension was kept in the fridge for 4 days and the film was prepared from this suspension at day 0, 2 and 4. The suspension was characterized in terms of its viscosity, sedimentation and microbial activity during storage. The film was characterized in terms of its thickness, solubility, moisture content and water vapor transmission rate (WVTR). The results showed that ALSHGE and ALSHGG suspension were pseudoplastic, depending on their concentrations, with sedimentation occurred in ALSHGG suspension after 4 days. Microbial growth in the suspension was inevitable in both concentrations of ALSHGG, but there was no microbial growth observed in both concentrations of ALSHGE. After 20 g of suspension was casted into film, ALSHGE4% and 6% resulted in thicker films, with lower moisture content, than ALSHGG1% and 2%. These could be the reason for high solubility of ALSHGG films. The WVTR of the films varied, independent of storage time of the suspension, with the least WVTR was observed in the film from ALSHGE.
One-step chemical bath deposition of Cu2O flowers grown on ITO seed layer coated glass substrate
Authors: Alsultany Forat H 
Published: June 2019

Abstract
Here, the growth of Cu2O flowers on a glass substrate were successfully fabricated using one-step chemical bath deposition method at low growth temperature. These flowers were grown on ITO seed layers that were prepared on glass substrate by magnetron-frequency RF sputtering. The structure and surface morphology of the products of Cu2O flowers were characterized in detail using X-ray diffraction and microscopy of field emission scanning electron. Optical properties were examined through the ultraviolet/visible spectro-scopy. The results showed that the Cu2O flowers were uniformly formed on ITO seeds-coated glass substrate, grow in the cubic structure with film preferential (111) plane orientation, high transmittance, and good crystallinity. The value of band gap is approximately 2.53 eV. This study helps to be the basis for more research on the growth of Cu2O at low-temperature and low cost-effective substrate.
Analysis of Paddy Productivity Using NDVI and K-means Clustering in Cibarusah Jaya, Bekasi Regency
Authors: Liyantono  , Almadani Yusup , Adillah Yusuf , Maulana Yusuf Muhammad , Reza Mahbub Muhammad Nyak , Fatikhunnada Alvin 
Published: June 2019

Abstract
Information about rice productivity is one of the references for government to maintain food availability. With remote sensing technology, rice productivity can be known faster. This research was conducted using UAV (Unmanned Aerial Vehicle) and Sentinel-2 Satellite. Sentinel-2 NDVI which has a low resolution with high resolution UAV images, both variables have similarity values and regression reaches 0.8. NDVI are grouped into 8 classes using k-means clustering based on the similarity of the waveforms of each data retrieval point. Based on characteristic of k-means classes, field which has earlier planting times and the location closer to the water source, allowing a higher paddy productivity. Further analysis was also carried out to get the best period to estimate paddy productivity using Sentinel-2 imagery. Sentinel-2 was chosen because it has a distance between data as far as 5 days, allowing it to be more accurate. The best time is obtained at 63 DAP (Days After Planting), which is when NDVI reaches its maximum state. The estimation model of rice productivity based on UAV has a high coefficient of determination compared to Sentinel-2 so that the relationship between maximum NDVI UAV and rice productivity is better than Sentinel-2.
Prediction of chemical content in patchouli oil (Pogostemon cablin Benth) by portable NIR spectroscopy
Authors: Windawati Vrita , Purwanto Y A , Budiastra I Wayan , Widodo Slamet , Kuroki Shinichiro 
Published: June 2019

Abstract
The objective of this study was to develop the calibration model for predicting the patchouli alcohol in patchouli oil by portable Near Infrared (NIR) spectroscopy. Patchouli oil samples were obtained from different origin in Indonesia. Portable NIR spectrometer with wavelength of 760-1050nm was used to collect the spectra of the patchouli oils. The calibration model was developed by partial least square regression (PLS). The best model for predicting patchouli alcohol content is y = 0.7209x + 8.2804 with r = 0.86, SEC = 2.04%, SEP = 2.16%, CV = 7.6, RPD = 1.8.
Marginal Costs and Likely Supply Elasticities for Pollination and Honey
Authors: Champetier Antoine , Sumner Daniel A. 
Published: June 2019

AbstractWe report new estimates of beekeeper costs and revenues, which include major activities undertaken by beekeepers, including honey producers and pollinators. We use our cost estimates, recent government surveys and other United States Department of Agriculture information to characterize supply functions for (1) pollination services to crops that bloom in the late winter (dominated by almonds), (2) pollination services to crops that bloom in the spring and summer, and (3) honey produced in the United States. The positions and shapes of these supply functions are crucial to understanding how the honeybee industry will respond to changes in demand for pollination services and other market conditions, including shifts in honey demand, honey import supply, and forage availability affected by climate change.
Grading Pancreatic Neuroendocrine Tumors by Ki-67 Index Evaluated on Fine-Needle Aspiration Cell Block Material
Authors: Abi-Raad Rita , Lavik John-Paul , Barbieri Andrea L , Zhang Xuchen , Adeniran Adebowale J , Cai Guoping 
Published: June 2019

AbstractObjectivesThis study aimed to determine whether Ki-67 index evaluated on cytologic material could reliably grade pancreatic neuroendocrine tumors (PanNETs).MethodsCases with adequate cell block and available surgical specimens were included. Ki-67 index was calculated using “eyeballing,” “hot spot,” and “complete” counting methods.ResultsThe overall concordance rates between cytology and surgical specimens were 71%, 73%, and 59%, respectively, by using eyeballing, hot spot, and complete counting approaches. All grade 1 tumors were correctly graded on cytology, but in grade 2 tumors concordance rates were only 36%, 41%, and 9%, respectively. All grade 2 tumors were undergraded when cell blocks contained fewer than 1,000 cells, while concordance rate increased to 57%, 64%, and 14%, respectively, in cases with 1,000 cells or more.ConclusionsGrade 2 PanNETs can be significantly undergraded when Ki-67 index is evaluated on cell block material. In cases with 1,000 or more cells, the hot spot counting method has better correlation with surgical specimens.