bluuebunny/crossref_metadata_2025_split huggingface dataset:
Inception Architecture for Brain Image Classification
Authors: Tamilarasi R , Gopinathan S 
Published: July 2021

Abstract
A non-invasive diagnostic support system for brain cancer diagnosis is presented in this study. Recently, very deeper convolution neural networks are designed for computerized tasks such as image classification, natural language processing. One of the standard architecture designs is the Visual Geometric Group (VGG) models. It uses a large number of small convolution filters (3x3) connected serially. Before applying max pooling, convolution filters are stacked up to four layers to extract features’ abstraction. The main drawback of going deeper is over fitting, and also updating gradient weights is very hard. These limitations are overcome using the inception module, which is wider rather than deeper. Also, it has parallel convolution layers with 3x3, 5x5, and 1x1 filters that reduce the computational complexity due to stacking, and the outputs are concatenated. This study’s experimental results show the usefulness of inception architecture for aiding brain image classification on Repository of Molecular Brain Neoplasia DaTa (REMBRANDT) Magnetic Resonance Imaging (MRI) images with an average accuracy of 95.1%, sensitivity of 96.2%, and specificity of 94%.
The potency of curcumin and the thyroxine hormone to support the antioxidant activity during reproduction in common carp (Cyprinus carpio L)
Authors: Rawung L D , Rayer D J J , Manampiring N 
Published: July 2021

Abstract
In the reproductive period, the female fish experiences an increase in metabolism due to the variety of reproductive activities, including the synthesis of vitellogenin. High metabolic activity with insufficient availability of endogenous antioxidants can increase free radical production. The measurement of free radical levels can be determined by calculating the concentration of malondialdehyde. This study was conducted to know the potency of curcumin and thyroxine hormone supplementation to support the antioxidant activity during the reproduction period. Our study used female broodstock of common carp as the experimental animal. In this study, we used forty female broodstock divided into 8 groups of treatment. The results showed that supplementation of curcumin and thyroxine hormone during the reproduction period has the potency to support the antioxidant activity.
Effectiveness of the application of the Group Investigation (GI) learning model method of people tutors using e-learning via online and offline in increasing learning outcome of IPA for class VIIIA students at public middle school 2 Tutuyan East Bolaang Mongondow district
Authors: Maatita A , Arrijani A , Yalindua A 
Published: July 2021

Abstract
The study model of the group’s investigation (GI) of peer tutoring methods using e-learning online and offline is an effective learning model to be used during the pandemic of the covid-19 (corona virus diseases-19). Research aims to see the effectiveness of the use of the GI model peer method using e-learning online and offline to improve learning. The method used was one group precursor posttest design experiment. The sample in this study is a VIIIA class with a total of 35 apprenicians. Data obtained from pretests and posttests based on statistical analyzes then followed by testing of test-t hypothesis using a separated variant = 89.55 and price with a=0.05 and degress of freedom = (35+35-2) =68 is 1.30. Since > (89.55 > 1.30) it can be concluded that was rejected, this means that there is an average level difference in the ability of science studies between students who study using the educational method of group investigation e-learning online and offline tutors with students who learn to use conventional learning at country’s second middle school.
Development of audio-visual learning media integrating character education in chemistry learning to facilitate conceptual change and character strengthening of high school students
Authors: Pikoli M , Lukum A 
Published: July 2021

AbstractAudiovisual media is a set of tools that can project moving images and sound. This study aims to produce audio-visual learning media that integrates character education in chemistry learning to facilitate conceptual change and strengthen student character. This research is development research which includes three stages, namely preliminary studies, development, and validation, as well as testing and implementation to produce valid, practical, and effective audio-visual learning media. The validation was carried out by three experts through Focus Group Discussion. The audio-visual media and learning tools developed were tested on state senior high school students 1 Kabila Gorontalo. The research data technique used observation and three-level diagnostic tests. The data analysis used a qualitative descriptive technique. The results obtained are audio-visual learning media developed with validity with very valid categories, practicality with very high categories, and effective in shifting students’ conceptions from misconceptions and not seeing concepts to understanding concepts with high N-Gain. category, which is 0.83. This study concludes that the audiovisual learning media and learning tools developed are of good quality.
FTIR, SEM and XRD analysis of activated carbon from sago wastes using acid modification
Authors: Kunusa W R , Iyabu H , Abdullah R 
Published: July 2021

Abstract
Activated charcoal bio adsorbent is a method that can be developed because the raw material is easy to obtain and does not require large costs such as processing sago. The stages of making activated carbon include the stages of dehydration, carbonization, and extraction of silica using 4% NaOH solution (1:10). The activation stage successively used 250 mL of 1M NaCl, 1M MgCl2, 1M CaCO3, 1M K2Cr2O7 and the addition of 100 mL of 1M HNO3, 3% H2O2, 1M H3PO4 and 4NH2SO4 respectively. The activation process uses a water bath at 700°C for 3 hours. In the conventional carbonization stage in a vacuum used drum for 1x24 hours. Physicochemical analysis of activated carbon products, namely moisture content, ash content, pH, Activated Carbon Adsorption Test against Iod Test and methylene blue. FT-IR analysis showed a wide band of 3442.94 cm‒1 to 3415.93 cm‒1 which showed the free O-H strain vibrations of the OH group in the cellulose molecule. 1178.51 cm‒1, –1039.53 cm‒1, -1024.20 cm‒1, C-C and C-O-C glycosidic ether band. SEM data describes the differences in the surface morphological structure of each sample and is supported by XRD data.
Nature-based learning management; How is it planned?
Authors: Silangen P M , Oentoe F J A , Naharia O , Sumual H 
Published: July 2021

AbstractThis study aims to describe management in the planning activities section, nature-based learning in the Linow Lake for students of the Physics Department, Faculty of Mathematics and Natural Sciences, Manado State University. This research used qualitative methods. The results obtained in management for nature-based learning planning activities that describe the results of the analysis of the analysis of Curriculum, student needs, observation of natural objects (the Linow Lake), formulating objectives for field activities, designing field activities according to activities at level 1 to activity level 4, compiling formats observation and assessment rubrics. The results of these planning activities are then ready to be implemented in the next management stage that follows management functions (Planning, Organizing, Implementing and Evaluating).
Development model learning device problem solving material arithmetic sequence learners SMA State Kakas
Authors: Kindangen V , Sulangi V , Damai I W 
Published: July 2021

Abstract
This study aims to produce mathematics learning instruments on the Arithmetic Sequence lesson using problem-solving learning with a realistic mathematics approach to the 11th graders at SMA Negeri 1 Kakas that meets the criteria of validity, practicality, and effectiveness. The method of this study applies a modified 4-D model of research and development to design a lesson plan, student worksheet, and learning outcome test. Results find out that at the design phase, the lesson plan, student worksheets, and evaluation of learning outcomes were modified and revised. The results of field trials show that some aspects of learning are effective, and revisions are carried out by revising learning tools to produce final tools, the evaluation of learning outcomes seen from the index of validity and reliability is feasible without any significant revisions. The developed learning instrument by using problem-solving learning with a realistic mathematics approach was effective in teaching the Arithmetic Sequence lesson.
Development of mathematics literacy problems based Bentenan’s textile for Junior High School Students
Authors: Kaunang D F , Sulangi V R , Sumarauw S J A , Pitoy C , Agouw A N 
Published: July 2021

Abstract
This study aims to produce mathematics literacy problems based on the values of local wisdom in North Sulawesi Province, namely bentenan’s textile that are valid and practical. The research method used is development research which consists of the stage of Analysis (needs analysis, curriculum, student’s character), Design, Development, Implementation, Evaluation. The subjects of this study were VIII grade students of SMP Negeri 4 Tondano. The results of the study were valid and practical mathematics literacy problems based on bentenan’s textile. The validity is known from the results of the validator’s assessment on the validation sheet which states that the questions developed are good based on the assessment of content, construct and language and practicality is known from the results of individual and small group trial results which show that all students can use mathematics literacy problems based bentenan’s textile well.
Analysis of daily dynamics of thermal interaction of temperature and ocean flow in seaweed growth areas
Authors: Tulandi D A , Tumangkeng J V 
Published: July 2021

Abstract
Seaweed (Caulerpa sp) is a marine biota whose growth is influenced by physical parameters. The purpose of this study was to analyze the dynamics of daily temporal changes in seawater temperature at several depth points and variations in the velocity and direction of ocean currents. Make simple mathematical modeling of ocean current velocity and daily dynamics of seawater temperature in the seaweed growth zone and outside the seaweed growth area. Temperature measurements are carried out on 4 depth variations using a current meter when the sun illuminates the ocean. Measurement of the velocity and direction of the current is carried out using a current measuring instrument during the full moon. The Fourier function or periodic function determines mathematical modeling. The results showed that the transect measurement of sea temperature for 4 depth variations experienced changes due to the intensity of solar irradiation. During one cycle, the speed and direction of the ocean currents change periodically, with the average flow velocity in the seaweed zone being 7.4 m/min and outside the Lahe region being 18.75 m/min directly to the southwest at seawater flows at high tide and northeast experiencing low tide. The daily temporal change in ocean current velocity for each measurement transect shows the same shape which is modeled according to the Fourier function.
Teaching convex Lens materials with a PIMCA model
Authors: Koming R , Poluakan C , Silangen P M , Mondolang A H , Rende J 
Published: July 2021

Abstract
This research is based on learning physics on convex lens material with the PIMCA model based on MR-SR (multiple representation - semiotic source). PIMCA (Presentation, Idea Mapping, Conceptualization, Formative Assessment) is a new learning model based on MR-SR which was introduced and developed by Cosmas Poluakan. This study aims to see the increase in the average learning outcomes of physics education students in the odd semester. The method used in this research is quantitative comparative design with one group pretest-posttest design. The research was conducted in the physics education department of Manado State University with 24 students as respondents. The instrument used has been tested and validated. The research procedure starts from the initial study on students and then the pretest then performs 4 stages of the PIMCA model (presentation, idea mapping, conceptualization, formative assessment) then posttest. From the results of data processing & analysis, it was found that the average pretest score was 23 and the average posttest score was 79 with a standard ideal value of 75, then the gain-test value was 1.0769 where the data showed a high increase in learning outcomes after the implementation of PIMCA. And it can be concluded that the PIMCA learning model is very good at improving understanding of the concept of the convex lens.
Blue luminescence of indium-doped ZnO thin films prepared by DC magnetron sputtering
Authors: Sugianto S , Nurilhilmah N , Darsono T , Sugiyanto S , Aryanto D , Isnaeni I 
Published: July 2021

Abstract
ZnO is an intrinsic semiconductor suitable for many optical applications. In this current study homemade DC magnetron sputtering was used to grow undoped ZnO and indium-doped ZnO (or IZO) thin films. The indium content was varied from a mole fraction ratio of In2O3 were 0 at% to 6 at%. The structure of IZO films analyzed by X-ray diffraction (XRD), and the optical properties were carried out using UV-visible and photoluminescence (PL) spectroscopies. The XRD results demonstrated that IZO maintained a hexagonal wurtzite structure with a (002) preferential orientation. The optical band gap increased with an increase in indium doped concentration. The PL spectrum exhibits a broadband blue emission from IZO films centered at 440 nm (2,82 eV), originating from the radiative recombination at the defect level. Interestingly, the intensity of blue emission increased with an increase in indium-doped concentration.
Kinematic Modelling and Motion Mapping of Robotic Arms
Authors: Saraf Mangesh , Agarwal A , Chaudhary A , Ganthale A 
Published: July 2021

Abstract
Robotic systems are known for their precision and accuracy. To achieve a desired set of operating parameters the system must have a good control system. Robotic arms can vary in size shape and purpose of use. With increasing DOF (Degree of Freedom) the complexity of the system increases and hence a DAQ system is required to check various parameters of the process. This paper discusses the implementation of kinematic and inverse kinematic modelling of a 6 Degree of Freedom (DOF) hydraulic arm in MATLAB environment. The forward kinematic model is based on Denavit-Hartenberg parameters. To obtain a given set of position and orientation of end effector, inverse kinematics gives the required set of joint angles. Potentiometers mounted on arm joint are used as the prime feedback elements for extracting the joint angles. All six joints of the arm are revolute joints. The values of potentiometer obtained are compared to the desired input values. Proportional direction control valve is the main controlling element of the hydraulic circuit. The forward and inverse kinematics is validated and implemented in MATLAB robotics toolbox (developed by Peter Croke). A GUI is also used to ease the process of retrieving and feeding the information in the system. The results of forward and inverse kinematics from MATLAB are verified by the physical model discussed in this paper.
Augmentation of Mapping and Autonomous Navigation for Hexapod Robots by using a Visual Inertial System
Authors: Yelve Nitesh P , Menezes Jovan C , Das Shubhankar B , Panchal Bhavik M 
Published: July 2021

Abstract
In our previous work, we focused on the development of Razbot, a hexapod platform, and achieving its autonomy using the Robot Operating System (ROS). Therein, we also explained the difficulties faced with Razbot while trying to execute complex operations autonomously. Hence, in this work we address the problem and make an attempt at improving the odometry measurements of Razbot by introducing a Visual Inertial System (VIS) that includes a pair of synchronized monocular camera and inertial measurement unit which makes it capable of mapping the environment and autonomously navigating in it with increased effectiveness. To introduce the VIS, we made minor modifications in the components used and the control scheme of Razbot. In this work, we take help of the Extended Kalman Filter (EKF) for the fusion of odometry sources. Further, we also analyse the accuracy of the fused odometry by comparing the same and evaluating the errors or drifts in odometry before and after introducing the VIS in Razbot. Based on these results, we make a conclusion that the odometry source from VIS can significantly lower errors and drifts in fused odometry data, thus improving autonomous navigation and mapping of the hexapod robot. The implementation of this system will allow Razbot to be used in even more varied applications than those specified earlier.
Mechatronics Design and Kinematic Analysis of SMA Spring Actuated Parallel Manipulator
Authors: Ranjith Pillai R , Ganesan Murali 
Published: July 2021

Abstract
Flexible parallel manipulators can be used as an orienting device because of their precise positioning ability and better stiffness. The flexibility to the manipulator induces challenges in the selection of actuator, sensors and control. The paper presents a novel mechatronics design of a flexible symmetric parallel manipulator with minimum number of actuators used as an orienting device. Shape memory alloy springs (SMA) are used as an actuator because of ease of integration and higher deflection. In order to avoid any contact type sensor which could affect the compliance of the manipulator, the position of SMA spring is calculated indirectly from the kinematic model with the end effector orientation data measured from IMU sensor. The complete experimental set up design including electrical and control circuitry is explained in detail in the work. Preliminary open loop test is conducted on the prototype to understand the SMA response to various current input and to verify the effectiveness of the kinematic model in the actuator length measurement. Closed loop control based on ON/OFF control is implemented in the controller and is tested for step input.
Dynamic Characterisation of Honeycomb CNT Reinforced Sandwich Composite Structure
Authors: Balaji S , Nanavate Abhishek K , Jakkamputi Lakshmi Pathi , Raghukiran N , Jegadeeshwaran R 
Published: July 2021

Abstract
The dynamic characterization of honeycomb sandwich structure with CNT reinforced hybrid composite face sheet is performed using Finite element simulation. The element simulations. The Potential and Kinetic energies of the honeycomb sandwich beam were derived using classical laminate beam theory and Mindlin theory. The governing equations of motion for the sandwich composite beam is made up of Nomex material with a hybrid composite face sheet reinforced with CNT are obtained by applying the Hamilton rule in the finite element model. The functionality of current finite element modeling has been investigated to proving the dynamic properties acquired from the improved finite element model with the solution obtainable in the previous literature. A further various parametric study is performed to understand the effect of CNT content, thickness ratio, and boundary constraints on the honeycomb sandwich composition of dynamic properties with reinforced CNT of the hybrid composite face sheet is performed using finite element simulation. The CNT content in the honeycomb sandwich beam containing a remarkable effect on the natural frequency.
Improving the Mechanical properties of 6061 and 5083 welded joint using Friction stir lap welding
Authors: Shaik Chand Basha , Pawale Deepak M , Suryanarayanan R , Sridhar V G 
Published: July 2021

Abstract
Joining of metal is very important operation in every manufacturing activity. Conventional welding of Al alloys by Tungsten inert gas welding, Metal inert gas welding and Resistance spot welding was reported to produce poor quality weld joints, as the inherent characteristics of the base metal affected the weld properties. Friction stir welding, identified as one of the best alternative is employed to join Al 5083 and Al 6061 in this study. Aluminum alloys, Al 5083 and Al 6061 are welded in lap joint configuration, with SiC nano particles interlayer. The process parameters such as welding speed tool, rotational speed and volume percentage of Nano-powder were optimized by utilizing Response surface methodology, RSM. The joints welded without the SiC nano particle interlayer were observed to possess low mechanical strength at the best welding conditions determined by the RSM.
Generative Design Optimization and Analysis of Connecting Rod for Weight Reduction and Performance Enhancement
Authors: Nishanth R , Sreedharan M , Rajesh Pranav , Allam Dhanush Babu , Radha R 
Published: July 2021

Abstract
This research paper aims to explore opportunities for weight and cost reduction in the design and development of connecting rods. Two phases are involved in the analysis. The first part i s t o analyze the loads (compressive and tensile loads) acting on the connecting rod as a function of time to optimize its weight and manufacturing cost using generative design. The generative design is an iterative design process that produces a certain number of outputs based on the power, stress and other constraints applied. The primary considerations are weight, material, and cost for the connecting rod design, we generate which in turn, provides sufficient strength, stiffness, and fatigue resistance. The second part involves the analysis of finite elements that was performed at several crank angles and examined whether the generated designs withstand loads ranging from the tensile load, corresponding to 3600 crank angle as one extreme load at the maximum engine speed and compressive load corresponding to the peak gas pressure as the other extreme load. Thus, a wide variety of materials are analyzed to obtain the cost-effective and optimum design of the connecting rod that can be manufactured by additive manufacturing.
A Review on Smart Waste Collection and Disposal System
Authors: Keerthana S , Kiruthika B , Lokeshvaran R , Midhunchakkaravarthi B , Dhivyasri G 
Published: July 2021

Abstract
The main cause for land pollution is overflow of garbage. It makes insanitary condition for the encompassing individuals and cause ailment. This paper focuses on the review of various existing techniques available for garbage monitoring. In this article, survey about the waste monitoring methods, garbage disposal techniques and technologies utilized for developing a system to deal with waste management are presented. Finally, an efficient system is proposed along with waste disposal method that can be used in future for achieving better performance and cost effectiveness.
Analyzing the applications of internet of things in hotel industry
Authors: Sharma Urvashi , Gupta Deepali 
Published: July 2021

Abstract
Tourism is one of the fastest growing business domains. Self-assisted services and Internet of things-based devices have become the current age cash. Internet of Things is a network for devices to connect and communicate information using physical devices embedded with sensor, software, cloud computing and other technologies. Therefore, self-assistance options enhance customer experience when it comes to hotel accommodation. The Internet of Things plays major role in improving the stay experience by providing customized services to customers. Self-services like pre-booking, registration and user preferred payment mode, automated check in & check out are also few aspects that are contributing for improved guest experience. In this paper, role of Internet of Things in hotel industry is taken into consideration for improving the guest experience and providing the customized services and the application of IoT in hotel industry has been analyzed.