bluuebunny/crossref_metadata_2025_split huggingface dataset:
Physics ludo integrated with scientific literacy as a Newton’s law learning media
Authors: Yuberti Y , Sairi A P , Nanto D , Sholeha S 
Published: July 2020

Abstract
Newton’s Law, as a part of the topic in physics learning, is a fundamental knowledge that should be understood by students. However, most students find it hard to understand the material due to the lack of motivation to learn physics. The researchers proposed a famous game called physics ludo to solve the problem. The physics ludo game is a tool to know the feasibility and attractiveness of science because it contains problem formulation in Newton’s Law material. The researchers investigate the students’ responses to the media. The model used in this research is ADDIE (Analyze, Design, Development, Implementation, and Evaluation). The subjects of this study were 78 high school students from three different senior high schools. Instruments of data collection used were questionnaires given to the material expert, media expert, religious expert, teacher, and students to test the feasibility of the physics ludo game. The results of this study show that the media is highly feasible with a percentage of 87% from the material expert after being revised, the percentage from the media expert is 88% with a highly feasible category, the percentage from the religious expert is 95% with a highly feasible category, the percentage from the teacher is 89% with a highly feasible category, and the percentage from the students is 82% with a highly feasible category.
Preliminary study of activated carbon from water chestnut (Eleocharis dulcis)
Authors: Suryajaya  , Haryanti N H , Husain S , Safitri M 
Published: July 2020

Abstract
Preliminary study of activated carbon from water chestnut (Eleocharis dulcis) has been done. The water chestnut plants, which were taken from Barito Kuala regency, South Kalimantan, were carbonized at 400 °C. The carbonized time were varied in 1 and 2 hours. Then the carbons were activated by KOH and H2SO4 solutions. The activated time were also varied in 1 and 2 hours. The physical-chemical properties of water chestnut charcoal, such as water content, ash content, volatile and fixed carbon values, before and after activated, were characterized. The results showed that the water content, ash content, volatile and fixed carbon values of activated carbon were in the range of 5.63-12.17%; 10.95-17.22%, 41.78-56.18% and 34.66-45.05%, respectively.
Synthesis and characterization of LaCr(1-x)MoxO3
Authors: Yuliarni T , Situmeang R T M , Simanjuntak W , Ratri C R 
Published: July 2020

Abstract
LaCrO3 is a well known perovskite compound utilizing as semiconductors, catalysts, fuel cell, electronic devices, and others. In this preliminary study, the properties of LaCrO3 added by varying Mo contents were examined. TheLaCr(1-x)MoxO3 (with x=0.01 and 0.03) were synthesized by sol-gel pectin method using La, Cr nitrate, and ammonium molybdate as precursors, freeze-dried, and followed by calcination at 700 °C for 3 hours. The prepared materials were characterized using XRD, TEM, and DRS. The formation of the compounds for x=0.01 are La2Mo2O9, LaCrO3, and Cr2O3, and for x=0.03 are La2Mo2O9, LaCrO3, and La2O3. The crystallite sizes were determined using Scherrer formula and they are found to be 24 nm (x=0.01) and 33 nm (x=0.03). The TEM images showed that the obtained grains size was in the range of 24 nm (x=0.01) and 34 nm (x=0.03). The bandgap values are 2.59 eV for x=0.01 and 2.68 eV for x=0.03.
The combination of interactive conceptual learning models and multimedia interactive to minimize misconceptions on the science content
Authors: Marisda D H , Handayani Y , Rahmawati  
Published: July 2020

Abstract
This research was accompanied to minimize the misconception of physical education students at the Muhammadiyah University of Makassar in Integrated Science learning through the combination of interactive conceptual learning models and interactive multimedia (IMM) Macromedia Flash. The research conducted included several stages, namely 1) identifying integrated science material that enables students to experience misconceptions, 2) designing scenarios of learning models and interactive multimedia-based learning media, 3) conducting trials, 4) implementing learning followed by data analysis. Data were analysed quantitatively and qualitatively. Qualitative data in this study are in the form of characteristics of the material selected in the identification stage. From the analysis of the misconceptions, data on misconceptions are obtained. The response of the students and the lectures to the presented learning model is then narrated. Quantitative data in this study are in the form of initial test scores and final test scores. Based on the outcomes of the material analysis in the Integrated Science course that has the potential to cause misconceptions in the impact of acid rain pollution. Form the quantitative analysis. It shows that the percentage score of misconception in the pre-test stage has a high level in each item and has decreased in the post-test stage for each item. Misconceptions analysis was carried out on each item. The largest percentage of misconceptions occurred in question number 8, the percentage of pre-test scores of 81%, after being taught to obtain a post-test score of 18,9%. It shows a decrease in the percentage of misconceptions by 62,1%. It shows that lectures by providing Macromedia Flash learning media simulations can minimize misconceptions.
The effect of annealing temperature thin films indium doped SnO2 to optics properties and material composition
Authors: Doyan A , Susilawati  , Hakim S , Muliyadi L , Taufik M 
Published: July 2020

Abstract
This study aims to analyze the effect of annealing of tin oxide thin film doped with Indium. SnO2 thin film has many benefits as electronic devices, solar cells, LPG sensors, etc. Preparation of SnO2: In a thin film using a sol-gel spin coating technique that produces a thin film of high quality. The transmittance of the thin film experienced decreases with increasing ripening temperature with the transmittance of 96.6, 94.7, 89.6, 87.1, and 78.2% at a wavelength of 350 nm with annealing temperature increase, respectively. Thin-film absorbance has increased with higher heating temperatures i.e 3.01, 3.34, 3.41, 3.62, and 3.77, respectively. SnO2 thin film gap energy: In decreases due to increased ripening temperature at room temperature (35), 50, 100, 150, and 200 °C ie 3.65, 3.61, 3.59, 3.58, and 3.56 eV for direct energy gap and 3.96, 3.94, 3.93, 3.91, and 3.89 eV for indirect energy gap, respectively. The decreasing value of the gap energy makes the SnO2: In thin-film material faster in carrying current. The activation energy are decreased by increasing annealing temperature with value 2.91, 2.73, 2.15, 2.11 and 2.09 eV, respectively for increase temperature which makes electrons flow faster. Furthermore, thin-films composition with mass percentage Sn are 16.97% with atomic 2.77% and In are 1.46% with atomic 0.25%.
Vector in a graph line, is it important to teach physics?
Authors: Poluakan C , Mondolang A , Mongan S 
Published: July 2020

Abstract
It has been widely reported in various research journals about the difficulties of students in studying vectors and their application in physics. For this reason, research has been conducted which aims to identify misconceptions about vectors and application in physics concepts and the use of graph lines in the teaching of physics. Therefore research has been carried out based on the use of representation. The research method uses MOMBI which emphasizes the treatment of class formative assessment models. The study was conducted on 39 pre-service teacher students who had studied Mathematical Physics and Mechanics. By comparing the pre-test and post-test scores, the results of the study are that the decrease in score is incorrect in terms of the concept of drawing tail-tips or head-magnitude vectors from 89.7% to 38.4%, and the decrease in score is not correct in terms of implementation in determining the vector of the center of gravity from 92.3% to 35.8% and then the decrease in score is incorrect in terms of the concept of determining position vector from 97.4% to 45%. In conclusion, the use of graph lines in the teaching of vectors has positively increased students’ comprehension abilities related to vector concepts and their application in physics concepts. The recommendations of the research results, namely the importance of teaching materials and university physics reference books, include graph lines in the picture of concepts that use vectors, such as vectors of force, momentum, torque and so on.
Three-dimensional model of a decision-making problem under multicriterial conditions
Authors: Savkova E O , Chengar O V , Shumaieva O A , Shevchenko V I 
Published: July 2020

Abstract
The article proposed and reviewed a 3D model of the utility matrix, showing its analysis and proposing a generalized algorithm for solving a multi-critical decision-making problem under conditions of uncertainty based on this model. The essence of the technique is that the matrix-cube is divided into sections parallel to any axis (the axis of alternative solutions, the axis of undefined external situations, or the axis of criteria) and as a result we get several two-dimensional utility matrices to which we can apply any of the standard methods for solving decision-making’ problems. The application of the described method to finding the optimal solution in the conditions of uncertainty is shown by example.
Augmenting reality in the tasks of classifying objects in aerospace images
Authors: Kuchuganov A V , Kasimov D R , Khvorenkov D A , Lebedev O B , Zhiglaty A A 
Published: July 2020

Abstract
The problem of increasing the reliability of object recognition in aerospace images consists in the insufficient quality of image segmentation based on pixel colour characteristics and boundary shape descriptors. The paper proposes an approach based on description logic with an extension on graphs. The essence of the approach is the searching for relevant cases in the ontological base by calculating the degree of similarity and identifying differences of attributed graphs of cases. With the help of retrieved cases, the object structure and the boundary shape are refined. After that, objects can be augmented with subject domain information stored in the ontological base. Representation of the structure of cases in the form of attributed relational graphs allows avoiding the rapid growth of the case base, since the similarity of connected subgraphs is generally sufficient. The experiments are conducted on urban area aerospace images.
Camera testing technique for auto recognition
Authors: Kuznetsova S Yu , Zhigalov K , Daudov I M 
Published: July 2020

Abstract
The article describes the methodology for testing various cameras for their use in systems using neuro intelligence. This task is vital since the effect of the artificial intellect in recognizing incoming images is highly dependent on the quality of the input image. For these purposes, a detailed review of all relevant parameterization of measures in their assessment is given. The article can be useful for creating new systems oriented to the analysis of video images with a selection of cameras. The given method has been tested on real cameras and described in the article.
Modeling the assessment of the industrial enterprise performance with a balanced scorecard
Authors: Lobkov K Yu , Fedorova N V , Stupina A A , Tynchenko S V , Fedorova A V , Ridel L N , Dubrovskaya T V 
Published: July 2020

Abstract
This article proposes a techniques package for the development and use of a balanced scorecard to assess the industrial enterprise management activities effectiveness. These methods allow us to create a system model for evaluating the effectiveness of enterprise management activities. Since effective management activity is one of the most important elements for the successful functioning of any enterprise, its important business process, the importance of evaluating such activities is beyond doubt. At the end of the planning period, an assessment is made in percentage terms of the marketing activities effectiveness of each enterprise marketing service employee. For these purposes, the final coefficient of key performance indicators is calculated. Using a rating scale, we evaluated the effectiveness of marketing management of an industrial enterprise using the concept of a balanced scorecard. The following indicators were identified as elements of the FAROUT scale: future orientation, accuracy, resource efficiency, objectivity, usefulness and timeliness. These indicators are the basis for evaluating marketing activities. The relevance of this study is based on the fact that using various methods of evaluating marketing activities; you can adapt to market changes and choose the optimal development strategy.
Hardware-software system for studying the effectiveness of propeller-engine groups for unmanned aerial vehicles
Authors: Morozov V A , Yahin A M , Zhirova A E , Parshin A V 
Published: July 2020

Abstract
The subject of the article is the development of a laboratory tester for the study of the effectiveness of propeller-engine groups (PEG) of electric unmanned aerial vehicles (UAV). The need to create such solutions is due to the fact that the development and testing of unmanned platforms in the format of prototypes and their flight tests are time-consuming and expensive processes, it is not possible to assess the limit parameters of motors and their electronic speed controllers (ESC). Hardware devices and software for testing PEG separately can reduce the cost and speed up this process, as well as make the result more optimal both in terms of technical parameters and in terms of economic efficiency. A solution has been developed that allows to measure the motor amperage, the generated thrust of PEG, the voltage on the battery, the temperature of the motor, and then calculate PEG effectiveness indicators on their basis, visualize them in graphs, and thus compare the thrust and energy efficiency of various engine-propeller groups with propellers up to 30” ‘in size’. It is shown how the test results allow you to choose the optimal solution for assembling propeller-motor groups for light and medium UAV, and optimally design unmanned platforms for airborne geophysical prospecting.
Multilevel model of time dependences of acoustic emission parameters as the basis for nanodiagnostics of the state of technical objects
Authors: Nosov V V , Artyushchenko A P , Peretyatko S A , Khokhlova E D 
Published: July 2020

Abstract
The method of acoustic emission (AE) and the information-kinetic approach to AE diagnostics are identified as the most promising from the point of view of observing the process of growth of damage and optimization of production technologies. Based on a multi-level model of the time dependence of AE parameters, estimation of elastic homogeneous fracture intensity parameters of representative structural elements of a product and universal strength nanoconstants, the approach combines the traditional experimental way of resource estimation and kinetic representations of fracture. This allows to separate the effect of macro- and nano-factors on the AE of the material, variously related to the strength and acoustic emission activity of the material. A multilevel model and an informational-kinetic approach to acoustic emission diagnostics are described, combining nano-, micro- and macro-factors affecting acoustic emission activity, reliability of technical objects and methods for assessing their resource. On the example of a welded pressure vessel, the implementation of the method of its nano-diagnosis is considered. The possibility of effective resource estimation of various technical objects based on the information-kinetic approach to their acoustic emission diagnostics is shown. As a methodological basis, a multilevel model of the time dependences of the AE parameters is taken, which describes their behavior under conditions of strength and metrological heterogeneity.
The study of the accuracy of the robot movement along a given path considering the workspace boundaries, velocity and inertial properties of the drive
Authors: Khalapyan S Y , Rybak L A , Kuzmina V S , Kholoshevskaya L R , Ignatov A D , Popov M V 
Published: July 2020

Abstract
The paper considers the accuracy characteristics of a robot machine with a parallel structure as a control object. A specifically developed model of a planar 3-RPR mechanism with an electric drive based on a DC motor made it possible to experimentally study the dependence of the following robot output link accuracy according to the speed, weight and size characteristics of the drive and mechanism.
Monitoring the technical condition of the electric centrifugal pump during the repair process
Authors: Suleimanov R I , Khabibullin M Ya , Suleimanov Re I 
Published: July 2020

Abstract
The article discusses the process of monitoring the technical condition of an electric centrifugal pump during repair work at a service company. The procedure for repair work, the identification of defective parts and components of the pump section, and electric motor, visual and instrumental control of the technical condition are described. The results of the rejection of parts and assembly units are analyzed. Recommendations have been developed to reduce the rejection of parts and units of the installation.
Types of cloud deployment
Authors: Tavbulatova Z K , Zhigalov K , Kuznetsova S Yu , Patrusova A M 
Published: July 2020

Abstract
As network data rates increase, so does the spread of virtualization. Each type of cloud fits better or worse to a certain task. The paper details the major types of clouds currently in use and their deployment models. The paper can be useful to both simple users and information security professionals to deploy both private home family clouds and cloud computing systems of large corporations.
Simulation frameworks to embedded fabricate systems
Authors: Shukalov A V , Zharinov I O , Kostishin M O 
Published: July 2020

Abstract
The objects of this article are the simulation frameworks to design the embedded fabricate systems. An embedded fabricate system is a part of a modelling factory (MF) and an additive factory. It is proposed to solve the problem of synthesizing the embedded fabricate systems in an automated way. The simulation frameworks are a component of the software of an MF specializing in the development of digital copies of new enterprises. The simulation framework is implemented on the basis of industrial automation methods and can be configured for the synthesis of embedded fabricate systems of different types. Structural options for simulation frameworks are proposed. The automation components are distributed within the simulation frameworks depending on the embedded fabricate systems life cycle. The use of simulation frameworks allows to achieve improved performance characteristics of embedded fabricate systems.
Interaction of models and methods of providing QoS in networks
Authors: Zhigalov K , Skorikova N A , Daudov I M 
Published: July 2020

Abstract
The article shows how constructive blocks interact to ensure the quality of services (QoS) and how they are used to create QoS quality methods. For this, we consider three standardized methods: the method of integrated services (IntServ), the method of differentiated services (DiffServ) The article may be useful both for learning how to use the system and for choosing the technology you need to use.
Estimation of ANN prediction bounds for the suspended sediment load modeling
Authors: Nourani V , Sharghi E , Paknezhad N J 
Published: July 2020

Abstract
In this paper, the point prediction of the Artificial Neural Network (ANN) for the suspended sediment load modeling was evaluated for the Lighvanchai River located in Iran, in monthly and daily scales. Since point prediction of ANN convey no information about the accuracy of prediction, so prediction intervals (PIs) were constructed by the Bootstrap method as a most frequently used technique for assessing the uncertainty of ANN. In this way, the accuracy of PIs was quantified by coverage and width criteria. The results showed that the ANN-based modeling in daily scale had better performance compared to that in monthly scale and Nash Sutcliff efficiency was 32% higher in daily scale compared to monthly. Moreover, the width and coverage of the constructed PIs in daily scale were 14% and 24%, lower and higher compared to that in monthly scale and the Bootstrap method could appropriately capture the target values.
Improved pond productivity through integrated cultivation of red tilapia (Oreochromis niloticus), tiger shrimp (Penaeus monodon) and seaweed (Gracilaria verrucosa) in Maros, South Sulawesi, Indonesia
Authors: Pantjara B , Sarijanah A , Hermawan M 
Published: July 2020

Abstract
Marginal land use for brackish water aquaculture has not been fully used optimally, due to various problems, especially low pond productivity caused by degradation of water and soil quality. One effort to increase pond productivity for aquaculture is integrated cultivation (polyculture) with various fisheries commodities. The purpose of this research was to increase the productivity of ponds through polyculture of red tilapia, tiger shrimp, and seaweed. Twelve earthern ponds were used for this study, each pond of 2,500 m2 The nos polyculture systems employed in this study were A) red tilapia (1 no/m2), tiger shrimp (2 nos/m2) and seaweed (0,15 kg/m2); B) Tiger shrimp (4 nos/m2) and seaweed (0,15 kg/m2); C) red tilapia (1 no/m2) and tiger shrimp (2 nos/m2), and D) red tilapia (2 nos/m2) and seaweed (0,15 kg/m2). The results showed that the highest survival rate of red tilapia was recorded in D (87.3±3.15%) and the lowest in A (78.5±1.75%). Meanwhile, the highest tiger shrimp survival rate was achieved in B (72,2±6,53%) followed by A (64.0±3,02%) and C (62,6±3.15 %).The highest production of red tilapia was recorded in D (716.7 kg/2,500 m2), while the highest production of tiger shrimp was in B (100,04 kg/2,500 m2). The feed conversion ratio (FCR) in the red tilapia was the highest in D (1.19), followed by C and A (1.15 and 1.03), while the FCR for tiger shrimp in all the treatments was less than 1. Economic analysis showed that the highest profit per cycle was obtained in D.