bluuebunny/crossref_metadata_2025_split huggingface dataset:
Detection of Power Data Tampering Attack based on Gradient Boosting Decision Tree
Authors: Ping Guo 
Published: March 2021

Abstract
In order to improve the detection accuracy of the data tampering attack of the Power Cyber-physical System, a method of Power CPS attack detection based on Gradient Boosting Decision Tree is proposed in this paper from the angle of artificial intelligence. Firstly, by setting up the iForest anomaly value equation of physical system and IDS Shannon entropy function of information system, the feature extraction of data tamper detection is realized. Then, the CART decision tree is taken as the base learner of the detection classification, the target is minimized by the loss function, and the high intensity attack detection model is designed by iterative combination. Finally, the three-dimensional adaptive chaotic FOA algorithm is proposed for dynamic optimization of model parameters, an attack detection model under training optimal parameters. The analysis of the example shows that show that the proposed method can effectively detect power CPS data tampering attacks and has excellent detection precision.
Summary of Natural Language Generated SQL Statements
Authors: Yang Sen , Liu Yang 
Published: March 2021

Abstract
The entry cost of database query SQL statement is high, which is difficult for most database users. Therefore, natural language automatic generation of SQL sentences has gradually become the leading research direction in recent years. Previous researchers have done much excellent work in this area. This article mainly summarizes generating SQL statements in common natural language at present and conducts a detailed analysis. We summarize the current problems faced by SQL statements’ natural language generation and look forward to future development trends.
Intelligent Magnetic Experiment Teaching System Based on Hall Effect
Authors: Xu Fuxin , Wang Su , Yu Huiming 
Published: March 2021

Abstract
The Hall effect experiment occupies an important position in the teaching of university physics experiments. Traditional experimental teaching instruments have problems of tedious operation and difficult data collation. The new system designed in this paper uses the STM32 series single-chip microcomputer, the main control chip VT95276L128 and the touch screen module, and adopts the configuration graphic user design software VGUS programming to intelligentize the traditional TH-H / S type Hall effect experimental instrument. In addition to retaining all the functions of the original instrument, the experimental data processing and drawing can be handed over to a single-chip computer, which improves teaching efficiency and facilitates students to think deeply about the experiment.
Detection of the Inductive Magnetic Field of Submarine with Upper Arc Sensor Array based on Integral Equation Method
Authors: Ouyang Jianfeng , Zhao Wenchun , Liu Shengdao , Wen Haodong 
Published: March 2021

Abstract
In order to effectively solve the problem of the accuracy of the magnetic field measurement of submarine upper vault sensor, an integral equation method based on the magnetic field detection method of submarine upper vault was proposed. By analyzing the simulation data of the dome magnetic sensor, the analysis solution and the integral equation solution of the ellipsoid shell of the ship model are compared, so as to verify the accuracy of the integral equation method and provide a reference for the magnetic field measurement accuracy of the submarine upper part.
Fault dynamic monitoring of intelligent power system telecontrol dispatching based on improved fault tree
Authors: Qian Jianguo , Zhu Bingquan , Li Ying , Shi Zhengchai 
Published: March 2021

Abstract
The number of transmission messages is small when the traditional power system monitoring methods collect signals, Therefore, a fault dynamic monitoring method of intelligent power system telecontrol dispatching based on improved fault tree is proposed. The telecontrol communication model of intelligent power system is constructed. The communication signal of telecontrol dispatching channel is collected. The parameter of signal time-domain characteristic is measured. The time-domain waveform can pass through the zero period to get the carrier frequency range, judge whether the system telecontrol dispatching has fault, and analyze the fault mode by improving the graphical logic deduction of fault tree. A comparative experiment is carried out. Compared with the traditional methods, the results show that the design method can improve the number of packet transmission per unit time, increase the network traffic, and ensure that the communication network has very low load in the dynamic monitoring process.
Dual-Loop Iterative Learning Control of Robot Manipulator for Human-Robot cooperation
Authors: Lai Jianyong , Jin Shuping , Xia Peng , Huang Jie , Yuan Peng 
Published: March 2021

Abstract
This paper proposed a dual-loop iterative learning control strategy for robot manipulator in the situation of repetitive human-robot interaction. By utilizing the contact force between the human and the manipulator, a force-based loop is first conducted to produce the unknown desired trajectory of the manipulator. According to Lyapunov’s method and using the back-stepping technique, an adaptive iterative learning controller is presented to fulfill the trajectory tracking task of the robot manipulator, in spite of the model uncertainties and the unknown disturbances. The proposed control scheme is verified by numerical simulation on a robot manipulator with two degrees-of-freedom.
Retraction: Improvement of hydraulic accounting of water resources in irrigation systems using geoinformation systems (IOP Conf. Ser.: Mater. Sci. Eng.
1030 012117)
Authors: Qosimov Jakhongir , Nasritdinova Umida , Nasritdinov Axmadjon 
Published: March 2021

IOP Publishing are retracting this article following an investigation of translated plagiarism. IOP Publishing consider this paper a translation of [1], which was done without the knowledge or consent of the original author. IOP Publishing Limited request any citations to this article be redirected to the original work [1].

[1] Shamshodbek B Akmalov 2018 Improvement of Hydraulic Calculation of Water Recourses in Irrigation Systems with Using GIS Thesis 2018 Tashkent Institute of Irrigation and Agricultural Mechanization Engineers (http://library.ziyonet.uz/static/lib/reader-pdf/web/viewer.html?file=http://library.ziyonet.uz/uploads/books/251467/5b430b514db6a.pdf)
Retraction published: 17 March 2021
Analysis of the developed hinged joint assembly of the wheeled harvester
Authors: Klubnichkin V E , Klubnichkin E E , Kartashov A B , Vasilyeva K V 
Published: March 2021

Abstract
This work presents a kinematic analysis of the hinged joint assembly of the wheeled harvester which consists in determining limit folding angles of the joint assembly and travel of the hydraulic actuators against the developed electronic solid models. A resisting moment required for a vehicle spot folding on a hard bearing surface with a high friction factor with due consideration for the tires’ interaction with the bearing surface has been found with use of the Pacejka semi-empirical model MF-Tyre 6.1. Parameters are for tire model 710/45-26.5. The harvester dynamic model has been created having the following features: all links of the dynamic system are absolutely rigid; all wheels are free and rotating; no friction in hinges; Modelling was carried out for fully loaded harvester; rear tandem axle is rigidly coupled through a drive shaft with the front tandem axle; axle differentials are not blocked. Presented are vertical loads in the front and rear axle wheels’ patch area as well as lateral responses in the front and rear axle wheels’ patch area.
Comparative study of impression and cutting into ice by helical blade
Authors: Vakhidov U Sh , Yerasov I A , Molev Y I , Mokerov D S 
Published: March 2021

Abstract
The paper presents the results of energy efficiency studies of helical blade penetration types into ice. There are two principally different ways of helical groove generation in ice – by cutting and impression. It was found out that at a longer duration of the penetration process of the helical blade with a smaller lead angle the energy demand of the propulsion gets lower due to impression. At blade penetration by cutting, there is an extremum at the angle of cutting of 40-450, however, the energy demand in such condition is still higher than that of the penetration by impression. Considerable attention is paid in the paper to the measurement of the noise generation during the interaction with the penetrated surface which allows for prompt assessment of the energy efficiency of the considered parameter. The obtained results allow for efficiency improvement of the operation of vehicles with rotary screw propulsion units in real environments, as well as for their increased reliability due to new diagnostics methods.
Predicting modeling of the service properties of carrying systems in the articulated-vehicle-based self-propelled artillery systems
Authors: Bazhenov E E , Kustovsky A N , Usupov M L 
Published: March 2021

Abstract
The work is devoted to the possibility and prospects of the use of articulated-vehicle-based self-propelled artillery systems in order to increase their effective firing rate abilities. The reasons for creating such systems are presented. A mathematical model and its description are given. The high convergence of the analytical and the experimental data shows the adequacy of the established mathematical model. The use of the articulated-vehicle construction in self-propelled artillery systems makes it possible to reduce the time between two shots by about 2.5 seconds. Work conditions of the crew are also substantially improved.
Simulation of the passive part of an active car muffler
Authors: Okunev A , Kocherov A , Mantserov S , Kolobov M , Bushmanov D 
Published: March 2021

Abstract
Active noise reduction is a new method for solving acoustic noise problems. Acoustic and thermal measurements of the passive system were performed to determine the design requirements for the future active system for the internal engine. Further, the study of this system by the finite element method was carried out. The article presents the results of measurements and analysis of the system during modelling.
Potential of Latent Heat Load Removal by Activated Carbons for Energy Savings of Air Conditioning Systems
Authors: Miyazaki T , Chairunnisa  , Miksik F. , Thu K , Miyawaki J , Nakabayashi K , Wijayanta A T , Rahmawati F , Kristiawan B , Yaningsih I 
Published: March 2021

Abstract
The study aims to achieve energy savings of air conditioning systems using desiccant dehumidification with low-cost adsorbent. For this purpose, two existing activated carbons were evaluated in terms of water adsorption capacity. The theoretical calculation of effective adsorption from the water adsorption isotherms revealed that the studied activated carbons have promising potential in dehumidification application. In addition to that, the improvement of cooling COP of air conditioners was predicted by simulation of heat pump cycle. The results showed that the COP improved by 50%, which was equivalent to the reduction of electricity input by 30%, with the raise of evaporation temperature from 8.5°C to 18.5°C. The results encouraged the separation of dehumidification load from air conditioners to achieve large energy savings.
A Framework of Integrated Sustainable Make or Buy Decision Model
Authors: Rosyidi C N 
Published: March 2021

Abstract
Tolerance has been recognized as the connector between engineering design and manufacturing stages. It plays an important role in both stages and must be optimally determined to minimize several objectives such as manufacturing cost and quality loss. Considering the engineering design, the tolerance should be set tightly in order to get better quality. Conversely, considering manufacturing stage, the tolerance should be set loosely in order to make the manufacturing process less costly. Process and technological capabilities as well as limited production capacities made manufacturing companies to outsource some of their needed components to their suppliers. Hence, the manufacturing companies should decide which components have to make using its own production facilities and which one that must be purchased from the suppliers. These decisions can be made simultaneously with the determination of optimal tolerance. Due to the intense concerns on environment, sustainability gained more attention in recent years and attracted many researchers including in the field of make or buy decisions. We attempt to integrate the make or buy decisions with sustainability in the form of remanufacturing to determine the optimal component tolerance. We found that the Bass model, a widely used model to predict new product demand, can be integrated to make or buy decisions model specifically in determining the expected number of returned product to be remanufactured. We identify some problems in the integration such as the lead time which comes from the product useful life and time to collect the return product and also the representation of remanufacturing cost function in its relation with tolerance assignment, and considerations of single or multi manufacturing generations.
Feasibility Study of Web-Based POS System Implementation for SMEs in Bangladesh
Authors: Sourav A I , Emanuel A W R 
Published: March 2021

Abstract
As a developing country, Bangladesh is still less advanced in using the latest technologies such as websites, e-commerce, high-speed internet, point of sales (POS), etc. which is a great barrier in SME development. Proper implementation of technologies can achieve the full potential of this valuable sector. This paper aims to find out the feasibility factors of the implementation of a web-based point of sales system for SMEs in Bangladesh. The implementation of such kinds of systems will help SME entrepreneurs to achieve more potential from their businesses. A comparison of ICT developments, technologies, and POS system adaptation scenarios between Indonesia and Bangladesh is presented based on secondary data sources. The study indicates the current challenges to implement new technologies in SME sectors. The research found out the recent technological development conditions in Bangladesh. The results indicated that the implementation of a web-based POS system is feasible for SMEs in Bangladesh if the challenges can be successfully overcome. The authors suggest priority steps be taken by the government and private agencies for POS system adaptation by the SMEs in Bangladesh.
Six Sigma Implementation in Production Process in Electronic Company Malaysia
Authors: Utami M W D , Ma’aram A , Hisjam M 
Published: March 2021

Abstract
The electronics industry is one of the growing industrial sectors because of the need for electronics industry products continuously increases. This situation of development is driving the fast pace of electronics industry companies in Malaysia to be better prepared to face competition in the era of free trade. The study was carried in an electronic company in Malaysia that produce hard disk components. In this company, the number of defective products is very high which is the average defect (they call it u-loss) in the brushing room for arm body actuator products reaches 0.454% and one type of actuator arm body has reached 0.982% of defect units which means the company loses 65,000.88 RM per year. This study only focused on actuator arm body production in brushing room and aim to determine the dominant product which have the biggest percentage of defect, determine types of defects in the production of selected product, determine the root cause of the biggest defects in the production of selected product in brushing area, and recommend improvements in order to minimize the occurrence of defects in the production of selected product. This research uses Six Sigma in solving problems in the company. This study did not evaluate the results of the Six Sigma implementation directly. Therefore, as an alternative, quality improvement is done through Monte Carlo simulation with several scenarios. If zero defect in actuator arm body production is reached, company can save 65,000.88 RM per year.
Network Characterization of Goods Movement in Indonesia
Authors: Sopha B M , Setiawan A 
Published: March 2021

Abstract
Network characterization of goods movement is particularly important to estimate needs and accurate management for freight transportation. The present study aims at characterizing the network of goods movement in Indonesia and examining the effectiveness of network characterization for prediction purpose. A network approach using RStudio was applied. It was found that the network of goods movement in Indonesia is characterized by weak inter-provincial goods movement, scale-free network, disassortative, having rich-club phenomenon, and having a core-periphery structure in which Sumatera Barat (West Sumatera) and Jawa Barat (West Java) appears to be the cores of the network. The findings also demonstrate that the prediction model developed by characterization performs better and can explain, on average, 39% of the variances. The prediction models for chemicals, fuel, meat and livestock, fish, crude oil, and fertilizer, have even better capability to explain variances in the volumes of goods movement by more than 60%. Potential avenues for future research are also discussed.
Production Machine Maintenance System Design Using Reliability Centered Maintenance
Authors: Wicaksono P A , Saptadi S , Nurkertamanda D , Rozaq R 
Published: March 2021

Abstract
One of the indicators in increasing productivity is the level of reliability of production machines. The reliability level of a production machine is determined by the effective and efficient maintenance process of the company. A case study was conducted in a manufacturing company. In the period January until June 2019, the percentage of machine downtime is more than 3.0% (ideal benchmarking downtime for the manufacturing industry). Research carried out using Reliability Centered Maintenance (RCM). It starts with determining critical objects, then identifies each function of the assets, carries out FMEA analysis and calculates the highest risk of each failure mode, calculates proper maintenance intervals for the five highest failure modes, then ends with making a maintenance strategy by considering risk based inspection. This study aims to develop a maintenance strategy model that is better than what is currently used. By applying Reliability Centered Maintenance, machine reliability can be increased by an average increase of 39.34% and the right maintenance strategy can be found. Furthermore, it will get a new framework to become a new maintenance policy for the company.
The Influence of Zalacca Short-Fiber Addition with Random Orientation on the Characteristics of Low-density Polyethylene Matriced Composites
Authors: Raharjo W P , Ariawan D , Kusharjanta B 
Published: March 2021

Abstract
The aim of this research is to study the influence of zalacca fiber addition on physical, chemical, and mechanical characteristics of LDPE matriced composites fabricated by hot-pressing method. The fibers were short, random-oriented and varied as 10, 20, 30, 40 and 50 wt. %. The examinations included density testing, XRD, TGA-DTA, tensile and flexural testing, SEM and DMA. There was a reduction in composite density due to fiber loading. The zalacca fiber addition did not change degree of crystallinity of composites significantly. There was a bit decrease in thermal stability caused by fiber addition. The composite tensile strength and modulus of elasticity were enhanced with addition of zalacca fibers up to 40 wt. %. Tensile strength and elastic modulus declined due to further addition of fibers. At 40 wt. % fiber loading, there were several fiber fractures indicating that the applied load was borne effectively by the fibers after transferred from LDPE matrix. The fiber loading induced a meaningful improvement of flexural strength and modulus. There was a raise in storage and viscous modulus of composites due to fiber addition. However, fiber loading decreased loss factor, thereby reducing their damping capacity.
Design of Kaplan-Series Propeller for Commercial Submarine by Varying Rake Angle and Number of the Blade to Obtain the Highest Thrust and Efficiency
Authors: Putra Y D , Zakki A F , Trimulyono A 
Published: March 2021

Abstract
The use of submarines has covered various fields, for instance, is the exploration and exploitation of offshore petroleum. Submarine production and operation costs are still very expensive. The efficient use of fuel can reduce operating costs and increase cruising time for submarines. It is necessary to design the most optimal propeller with the highest and most efficient thrust. In this study, a commercial submarine is applied with the Kaplan-series propeller and nozzle intended to increase propeller thrust. Based on previous research it is recommended that propeller design should involve the hull itself. Therefore, the submarine hull form will be simulated together with the propeller. By varying the number of blades and rake angles of each propeller, it is expected to obtain the highest thrust. There are 3 types of the number of a blade that used in this study i.e. 6, 8, and 10 blades. While the variation rake angles are 50, 100, and 150. The present study uses computational fluid dynamics to predict thrust and torque in open water conditions. The turbulence flow k-epsilon model was used in the simulation. The results revealed that Ka1080 Propeller with 5° rake angle has the highest thrust and torque, which is 201 kN and 181 kN.m. on the other hand, propeller Ka680 with 15° rake angle has the highest efficiency reaching 50.9%.
Numerical Simulation of Long Duration Sloshing Using Smoothed Particle Hydrodynamics
Authors: Trimulyono A , Rahardjo A F , Mulyatno I P , Manik P 
Published: March 2021

Abstract
The sloshing phenomenon is one of the events in a liquid carrier vehicle such as airplanes and ships. Sloshing is a dangerous phenomenon because sloshing can effect ship motions that create excessive motion in liquid carrier vehicles. Long duration sloshing is challenging problems to solve using smoothed particle hydrodynamics (SPH). Stable, accurate, and reliable computation time is tried to achieve by many researchers. In this study, long-duration sloshing in the prismatic tank is tried to reproduce using single-phase and two-phase SPH. Firstly, the experiment is carried out using prismatic tank, with three pressure sensors, and a forced oscillation machine. In this study, only roll motion is used to reproduce hydrodynamics pressure with a low filling ratio. The results show SPH could reproduce fairly hydrodynamics pressure with spurious pressure oscillation. Static pressure is well reproduced by SPH.
Design of Hug Machine Portable Seat for Autistic Children in Public Transport Application
Authors: Afif I Y , Maula M I , Aliyafi M B , Aji A L , Winarni T I , Jamari J 
Published: March 2021

Abstract
The prevalence of autism in Indonesia was estimated approximately 2.5 million people. There are at least 500 new cases was diagnosed annually. Self-injurious behaviour is one of the most prevalence in autistic children. Only a few studies had been done in Indonesia regarding autism issue. Therefore, this study aims to design a hug machine portable seat for autistic children, called Autism Hug Machine Portable Seat (AHMPS), which can be used in public transportation (bus and train) to provide safety and for comfortability and can be used for therapeutic aid with deep pressure stimulation. The design was based on the morphological and decision-making matrix to get the best concept. The results of this study were obtained a selected design concept and certain technical specifications for the AHMPS.