bluuebunny/crossref_metadata_2025_split huggingface dataset:
A centrifugal softening impact energy harvester with the bistability using flextensional transducers for low rotational speeds
Authors: Fang Shitong , Wang Suo , Mei Xutao , Zhou Shengxi , Yang Zhichun , Liao Wei-Hsin 
Published: August 2020

Abstract
This paper presents a centrifugal softening impact energy harvester with the bistability using flextensional transducers. The bistability is firstly demonstrated to further enhance the advantages of the centrifugal softening effect in improving the impact energy output at low rotational speeds. In the harvester, two flextensional transducers are impacted by a centrifugal softening driving beam, which is experiencing the magnetic repulsive force at the same time. The flextensional transducers are adopted for their high electromechanical coupling coefficient and robustness under the large impact force. A theoretical model is built and validated by experiments. Experimental results show that the bistable harvester can generate higher energy output than the non-linear monostable and linear harvesters at the rotational speed ranging from 60 rpm to 360 rpm and a certain clearance of 1.07 mm. Its maximum instantaneous power and RMS voltage at 60 rpm are respectively increased by 323.1% and 184.3% compared with the non-linear monostable one, and 899.9% and 304.2% compared with the linear one. Such significant improvement cannot be achieved by changing the clearance in the linear harvester while it can be achieved by adding the bistability. Therefore, our proposed method facilitates the effective energy harvesting from widely-distributed low-speed rotations.
High Efficiency Direct-drive Mount for Space Surveillance and NEO Applications
Authors: Krysiak B. , Pazderski D. , Kozłowski S. K. , Kozłowski K. R. 
Published: August 2020

Abstract
The design, manufacturing and field tests of a new astronomical telescope mount are the main topics of this paper. The new robotic mount dedicated for 0.5 m class telescopes is the first mount developed, developed and produced as fully Polish concept by engineers and researchers representing the automation and robotics discipline (Poznań University of Technology) and astronomy (Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences). The mount is an alt-azimuth fork-type design which allows tracking of typical astronomical targets (sidereal tracking) but also man made objects (satellite tracking). Thanks to a unique mechanical design based on direct drive motors and high precision encoders coupled with custom electronics and on-board software implementing modern control theory achievements it was possible to obtain very good trajectory tracking precision throughout the entire dynamic range defined by the user scenarios. Additionally, the used control algorithms are robust to some class of disturbances such as friction which in turn allows for very high precision tracking in a wide range of angular velocities—from quasi-static movements to high-velocity satellite tracking. The test-bed infrastructure of the system is located in a dedicated astronomical research laboratory at the Poznań University of Technology campus. Local, remote as well as automatic observations can be carried out in the facility.
Accuracy in estimating visual quality parameters of mango fruits as moving object using image processing
Authors: Ahmad U , Adji M A P , Kardiyono  
Published: August 2020

Abstract
Mango fruit grading in Indonesia is still done manually with low capacity and less accurate results. A conveyor mechanism with a camera as an evaluation tool can be used to increase the capacity and accuracy of grading. However, the image quality captured by the camera decreases with a moving object. The purpose of this study was to evaluate the accuracy of estimating mango quality parameters by image processing using images captured by a camera at different conveyor speeds. The results of the RGB color analysis of mango images captured from a moving conveyor at three different speeds were compared with the results of the same still images. The average error of the color analysis for low, medium, and high speeds were; red color index 3.56%, 4.76%, and 6.27%, green color index 2.39%, 3.66%, and 3.95%, while blue color was not considered due to its inferior compared to the red and green colors. For HSI color model, the results were; hue values 2.13%, 3.35%, and 3.56 %, saturation values 8.98%, 12.15% and 15.26%, intensity values 15.48%, 23.89% and 17.84%. Meanwhile, the estimated error rates for the projected area for low, medium, and high conveyor speeds were 2.34%, 2.83%, and 4.78 %.
Estimation of moisture content in Liberica coffee by using near infrared spectroscopy
Authors: Kyaw Ei Mon , Budiastra I W , Sutrisno  , Samsudin  
Published: August 2020

Abstract
Liberica coffee is a popular one in the global trade market beside Arabica and Robusta. Moisture content (MC) is one of the most important quality parameters of green coffee beans production and trading. NIR spectroscopy is one of the alternative methods for the rapid determination of chemical compounds in the products non-destructively. The purposes of this study are to determine the best calibration model, data transformation, and data pretreatment for moisture content of Liberica coffee. The ground coffee samples were measured by FT-NIRS in the wavelength of 1000-2500 nm, properly the moisture contents of the same samples were determined by the oven method. The obtained spectrums were transformed into absorbance (Log 1/R) and Kubelka-Munk (K/S) units. Data pretreatment, such as standard normal variance (SNV), second derivative (dg2), and multivariate calibration method such as a partial least square (PLS), were carried out to develop the best calibration model. Good accuracy for the prediction of moisture content of Liberica coffee green bean was obtained from the spectral data pretreated with dg2 and Kubelka-Munk(K/S) data transformation with the statistical evaluation values of r (0.87), RPD (2.05), consistency (99%) and CV (5.76 %)
Ultrasonic atomizer application for Low Cost Aeroponic Chambers (LCAC): a review
Authors: Niam A G , Sucahyo L 
Published: August 2020

Abstract
Technology of ultrasonic atomization has been proven effective at creating droplets with specific physical and functional properties. Applications of this technology include drying liquids, medical nebulizers for inhalation therapy, surface coating, and encapsulation of materials in particles for therapeutic medicine, nutritional food, energy production and imaging. Parameters studies in this literature reviews are related with correlation of frequency values, droplet size, and flow rate of liquid, as well as the temperature resulting from the breakdown of molecules through the transducer droplet particle size and evaporation rate also need to be considered because it is related to the effectiveness of uptake nutrients in the roots. This article provides an overview of the primary mechanisms arising from ultrasonic responsible for the formation of these materials, highlighting examples that show promise particularly in the development of aeroponic system and bioproducts.
Determination of aquifer distribution using resistivity method in South Tangerang, Banten Province
Authors: Waspodo R S B , Asra A , Dewi V A K 
Published: August 2020

Abstract
Water is an essential requirement for humans. The increase in population growth has an impact on the high demand for water. Surface water quality is declining due to human activities, which make people switch from surface water to groundwater. The excessive exploration of groundwater causes in decreasing soil surface. Therefore, it is necessary to study the characteristics of groundwater. This study aimed to identify the lithology of soil, the position, and thickness of the aquifer, and to analyze aquifer distribution at the research location. The research method consisted of several stages which were preparation, implementation, data processing, data analysis, and result presentation. The result shown the depth of shallow aquifer at the research location was 3.00-44.73 m below the soil surface with a thickness of 2-12 m. The lithology of soil was clay and tufa sand. The depth of layers in the aquifer was 80-130 m, with a thickness of more than 75 m. Groundwater flow patterns headed toward the North.
Hydrogeology study and determination of aquifer distribution using geoelectrical schlumberger method in subang regency
Authors: Waspodo R S B , Prakusya A A , Dewi V A K 
Published: August 2020

Abstract
The amount of water demand will always increase, especially in Subang Regency. Efforts to control and monitor springs and groundwater are carried out to maintain the availability of springs and groundwater. Therefore, an analysis of geology - hydrogeology of springs and groundwater is needed. The purposes of this research are to determine the interpretation of geological data to investigate groundwater, know the location and distribution of aquifers based on the resistivity value of rock types, and to assess the potential of groundwater using the Darcy equation. This research was conducted in several steps, such as collection and analysis data. The processed data was the secondary geoelectrical data with the Schlumberger method. Calculation of groundwater storage was performed by using geoelectric and Darcy’s law approach. From the calculation result, it was obtained that the predicted groundwater storage was about 5380.375 m3/day or 62.27 m3/s.
Analysis and design of expert system for microalgae production to produce biofuel
Authors: Supriyanto  , Rani Devitra Saka , Wibawa Dhani S. , Winata Haikal Nando , Noguchi Ryozo , Ahamed Tofael , Mikihide Demura , Watanabe Makoto M. 
Published: August 2020

Abstract
Microalgae are third-generation (3G) biomass sources to produce biofuel. The microalgae process to produce bio-oil consist of several activities such as cultivation, dewatering, and extraction. The cultivation of microalgae mainly using the Open Raceway Pond (ORP) with paddlewheel operation. The dewatering process using the centrifugation and drum filtration reduced the concentration of microalgae slurry to 20%. Furthermore, hydrothermal liquefaction (HTL) was used to extract to the bio-crude. Dissemination tools are needed to deliver knowledge of the microalgae production from cultivation to bioenergy In this research, the expert system was proposed to help the practitioner to apply the microalgae production. The methods used in this research consist of knowledge acquisition, knowledge representation, and development of the inference engine. The result of this study was the knowledge-based expert system for microalgae production. The expert system could help the practitioner in the preparation process of the microalgae cultivation.
Web Service for Academic Information Systems
Authors: Kurniawan A R , Warlina L 
Published: August 2020

Abstract
This research has the goal of creating an academic information system based on web service or Application Programming Interface (API). We use API, so that information systems are easily accessed and applied to cross platforms such as websites, desktop applications, mobile applications, and others. The descriptive analysis method was used in this study to analyze the requirements contained in the built system. Other than that, we used the waterfall method as a model approach in software development. The final results of this study can help in the management of academic data. These results can be achieved because all information is processed and presented online and accessed through cross platforms. Besides, if universities are advanced, this system is more comfortable to develop because it uses the API. Hopefully, this research result can contribute to the Ministry of Research, Technology, and Higher Education data management regulation.
Implementation of the Failure Mode and Effects Analysis (FMEA) Method to Determine Project Risk Priority
Authors: Atin S , Lubis R 
Published: August 2020

Abstract
The purpose of this research is to determine the priorities of risks that might occur so that the implementation of project work can run smoothly and later can be used as a basis for making decisions in handling the project being worked on. One method that can be used to determine the priority of risks that arise in a project is the Failure Mode and Effects Analysis (FMEA). FMEA is one of the methods used to prevent project failures caused by project risks that arise. The results of this study are FMEA can be used to handle and determine the priority of risks that arise in the project and can be used by the person in charge of the project in making decisions in handling risks that arise in the project. By using FMEA project risks can be prevented and completed so that the project can be completed on time.
Acquisition, Modeling, and Evaluating Method of Driving Behavior Based on OBD-II: A Literature Survey
Authors: Hermawan Galih , Husni Emir 
Published: August 2020

Abstract
In this paper, we present the results of a literature survey related to driving behavior that aims to provide an overview of recent research related to driving behavior, including how to obtain data from onboard diagnostics (OBD-II), analyze data, model data, and evaluate models or systems. Driving behavior is closely related to driving habits that can be used for driver identification, driving characterization, improve fuel efficiency, and any other things. The contents of the discussion are arranged based on the research objectives, then will discuss the methods used and the evaluation results. Through this research is expected to provide insight into the acquisition and utilization of driving behavior for various things. Furthermore, provide an overview of research opportunities in the future.
Information System Security Analysis of XYZ Company Using COBIT 5 Framework and ISO 27001:2013
Authors: Prapenan G G , Pamuji G C 
Published: August 2020

Abstract
Information system security is now very important to prevent from an attack. Besides that, low level security can harm the productivity of an organization. The purpose of this research is to ascertain and know the level of information system security in XYZ Company, because it has never conducted an audit information system security. In this research, it used the COBIT 5 framework to audit information security management system in a company based on the ISO 27001 standard. This audit was conducted to identify information system security that was not good. In addition to improving the information security management system that will be adjusted to the ISO 27001 standard. This research was composed by applying a qualitative methodology, observation of the activity in the company and reviews related information security management system literature document existing. For the auditing using COBIT 5 framework, audit focuses on four kinds process that consists of APO12, DSS05, MEA02 dan EDM03. The audit COBIT 5 two results in consisting of “Managed Process” Level on APO12, MEA02 and EDM03 and “Performed Process” level on DSS05. The resulting of this research will be used a reference to the improvement of existing information system security in the company.
Strategies for Improving the Quality of Logistics Courier Services Through Priority Problem-solving Based on Multiclass Classification
Authors: Hendayani R , Dharmawan M C 
Published: August 2020

Abstract
PT Tiki Jalur Nugraha Ekakurir (JNE) is the most popular courier service in the country and ranked the first in the category of courier service companies in Indonesia Top Brand 2018. Despite being a top brand, JNE still faces a variety of complaints posted by customers on the internet and social media. This makes it interesting to study as a means of evaluating and finding strategies to improve the quality of logistics services using a sentiment analysis method with classification models of Naive Bayes Classifier and Support Vector Machine as well as multiclass classification. This study aims to review and determine which classification model is the most appropriate for the dataset, find out the rating of sentiments and dimensions in order to measure the quality of logistics company services and identify what problems need to be prioritized. The population in this study are all the tweets mentioned to JNE’s Twitter accounts. Tweet samples in this study were collected over a 30-day period, from 1 September 2019 to 30 September 2019, totalling 11,134 tweets. This study revealed that JNE is dominated by negative sentiment of 97.82% and positive sentiment of 2.18%. The main problems (high priority) faced by JNE are the dimensions of Personnel Contact Quality and Timeliness. Then, the dimensions of Information Quality, Order Discrepancy Handling and Order Accuracy are problems with medium priority. Meanwhile, JNE’s low priority issues are the dimensions of Order Conditions, Ordering Procedures, Ordering Release Quantities, and Order Quality. Therefore, JNE needs to improve the examination of personal messages and provide a quick response to complaints about customer problems and increase commitment in every delivery service to match the estimated delivery time. It is recommended in future studies to apply the Naive Bayes Classifier classification model in Twitter dataset processing because it has fast, good, and quite precise processing results. Future research can also use the application of ABC analysis which can be used as a basis for determining the number of priority dimensions of a service’s problem solving.
The Designing of Warehouse Management Information System
Authors: Fauzan R , Shiddiq M F , Raddlya N R 
Published: August 2020

Abstract
Warehouse Management Information System or WMIS primarily aims to control the movement and storage of materials in the warehouse and process related transactions, including sending, receiving, storing, and taking. This research has the objective to analyze the running system and design a warehouse management information system in Zaeni Convection. The development methodology used is Rapid Application Development with an object-oriented approach. While the tools used in design are UML (Unified Modeling Language). Problems in the Zaeni Convection are; there is no automatic calculation of raw materials, the process is not yet maximized to regulate the entry and exit of goods, there are no reports on inventory and expenditure of goods, and there is no computerized data storage. In designing a warehouse management information system, there are four actors involved namely Owner, Warehouse Section, Production Manager and Supplier. There are four function that are described, including: Ordering of Raw Materials, Purchase Orders, Production, and Management of Finished Goods. Based on this research, it can be concluded that the results of the warehouse management information system design can be a solution for the process of managing goods at Zaeni Convection
Forward Engineering in Student Mark Recapitulation Application
Authors: Mauluddin S , Sidik R 
Published: August 2020

Abstract
This research intends to carry out forward engineering of the student mark recapitulation application in the information systems department, Universitas Komputer Indonesia. The forward engineering is the final step of the reengineering process in the mark recapitulation application. Re-engineering is done because the student mark recapitulation application cannot function properly. This re-engineering used the big bang approach, which is to rebuild or change the entire existing system, while the forward engineering stage follows the stages of the general model of re-engineering software, namely conceptual, requirements, design, and implementation. The conceptual and requirements stages have been carried out in previous reverse engineering research, so that in the forward engineering the research phase will start from the design stage then proceed to the implementation phase. The programming language in the existing application uses visual basic and the new application will be rebuilt using the java programming language. The results of this study are the student mark recapitulation application which has nine functions, namely lecture management, curriculum management, student management, import mark, mark management, system settings, temporary transcript printing, final transcript printing, and graduation certificate printing. Based on the results of tests on several computers with different operating systems, this application can function properly as expected.
Enterprise Architecture Planning for Enterprise University Information System Using the TOGAF Architecture Development Method
Authors: Ulmi U , Putra A P G , Ginting Y D P , Laily I L , Humani F , Ruldeviyani Y 
Published: August 2020

Abstract
One of the important strategies in dealing with the development of information technology is the usage and increase of information systems support for the enterprise. Enterprise University Information System (EUIS), a product released by the University of Indonesia Computer Science Center, is a cloud-based system that can help the academic community-run main and supporting processes with data that can be tracked in real-time. EUIS is currently used by several clients. In the future, the company is targeting technological developments in EUIS that can be used by many other universities, so it can be easily adjusted and integrated with existing information systems at the client. Therefore, an update of enterprise architecture is needed to support the alignment of IT with existing business needs. The enterprise architecture design method used in Enterprise Architecture Planning (EAP) with the Open Group Architecture Framework (TOGAF). In this research using a qualitative methodology, TOGAF ADM can assist in planning architectural changes from monolithic to micro services by identifying several scenarios. The results showed that the decentralized microservice architecture design can be applied to EUIS. Pusilkom UI currently has implemented this design with a client that has condition 2, so that further research can be tested for other conditions.
The Dual-Protocol of the Internet of Things (IoT) Platform for Environment Monitoring System
Authors: Mulyana A , Ualubun JA 
Published: August 2020

Abstract
The purpose of this study is to create an air pollution monitoring system that has an adaptive capability in the place where the device is used so that it can send data to the server. The method used is to detect GSM signal levels that exist at the place where the device is used, and based on the rules specified then the selector unit will make the selection of the appropriate communication protocol according to the situation, whether using HTTP or MQTT. Based on testing for data transmission, MQTT protocol is more reliable in areas outside cities with low GSM signal levels. Under these conditions, the system is able to pass the selection of protocols correctly so that the system is able to work optimally in sending data. The usefulness of this research is to support reliability in the delivery of devices that work with the principle of internet inf things.