bluuebunny/crossref_metadata_2025_split huggingface dataset:
Behavioral and environmental contributions to drosophilid social networks
Authors: Jezovit Jacob A. , Rooke Rebecca , Schneider Jonathan , Levine Joel D. 
Published: May 2020

SignificanceCultural norms, collective decisions, reproductive behavior, and pathogen transmission all emerge from interaction patterns within animal social groups. These patterns of interaction support group-level phenomena that can influence an individual’s fitness. Here, we analyze social interaction networks across 20 drosophilid species through the comparative method. This study represents an attempt to understand the evolutionary forces shaping social structure in flies. This study establishes an important framework for understanding the interplay between social groups, the ecological environment, and the evolutionary history of flies. This further sets the stage for uncovering common molecular mechanisms governing social behavior in flies, which may be conserved across other animals.
Imaging lutein and zeaxanthin in the human retina with confocal resonance Raman microscopy
Authors: Li Binxing , George Evan W. , Rognon Gregory T. , Gorusupudi Aruna , Ranganathan Arunkumar , Chang Fu-Yen , Shi Linjia , Frederick Jeanne M. , Bernstein Paul S. 
Published: May 2020

Significance
We have determined the spatial distribution of the macular pigment carotenoids lutein and zeaxanthin in the human retina using confocal resonance Raman microscopy and found that zeaxanthin is highly concentrated in the fovea, while lutein is more diffusely spread across the macula at a relatively lower concentration. Our results imply that zeaxanthin may play a more important role than lutein in human macular health and disease, and they demonstrate the elegant ability of confocal resonance Raman imaging to probe the biochemistry and structure of the most important region of the human retina.
On the incorporation of iron into hexagonal barium titanate: II. Magnetic moment, electron paramagnetic resonance (EPR) and optical transmission
Authors: Langhammer H T , Walther T , Böttcher R , Ebbinghaus S G 
Published: May 2020

Abstract
Systematic measurements of the magnetic moment in dependence on temperature and magnetic field of hexagonal 6H-BaTiO3 + 0.04 BaO + x/2 Fe2O3 (0.005 ⩽ x ⩽ 0.05) ceramics were performed to study the influence of Fe ions on the magnetic properties. While the samples show Curie–Weiss paramagnetism for Fe concentrations ⩽1.0 mol%, antiferromagnetic interactions become manifest for 2.0 and 5.0 mol% iron. With increasing Fe content the antiferromagnetic interaction, which is assumed to be caused by a superexchange mechanism

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, becomes stronger. At external magnetic fields smaller than 1 T a further, ferromagnetic interaction between Fe3+ ions is detected below 200 K. The interactions between Fe3+ ions in the samples with 2.0 and 5.0 mol% iron are also manifest in the EPR spectra by numerous lines with low intensity. Q-band EPR investigations of 5.0 mol% Fe doped single crystals confirm the existence of only one type of Fe3+–VO associates in the samples.
Plasma filaments in the scrape-off layer of Wendelstein 7-X
Authors: Killer Carsten , Shanahan Brendan , Grulke Olaf , Endler Michael , Hammond Kenneth , Rudischhauser Lukas 
Published: May 2020

Abstract
Plasma filaments have been observed by reciprocating electric probes in the Scrape-Off Layer (SOL) of the Wendelstein 7-X stellarator. Comparison with target probes indicates that a filament observed in the W7-X SOL extends to the sheath. Two-dimensional simulations of seeded filaments exhibit good quantitative agreement with experimental measurements in filament velocity scalings, despite an assumption of constant field line curvature. Both experiment and simulation show a slow radial propagation of filaments, indicating that filaments are essentially bound to their flux surface and do not perform ballistic radial motion. In contrast, the poloidal propagation along flux surfaces is much faster than the radial motion.
Reduced Order Modeling of Large Power Grid Model with POD-DEIM
Authors: Singh Satyavir , Abid Bazaz Mohammad , Ahmad Nahvi Shahkar 
Published: May 2020

Abstract
This paper addresses the issue of computational complexity of a large power system network, specifically the swing dynamics problem. Swing equation is nonlinear model which required mathematical model to be solved for simulating the swing dynamics. It has been seen that numerical computation becomes intractable for such models. This issue can be solved with model order reduction. Dynamics of interest is represented by a minimum size aims to reduce the computational time and memory requirement. Proper Orthogonal Decomposition technique is most often used to reduce computational efforts. However, it does not reduce the size of the nonlinear function. The discrete empirical interpolation method was proposed for POD to overcome the large size of nonlinear function by providing its discrete computations. The POD-DEIM approach is experimented on power grid network model to show significant reduction in computational cost with high degree of accuracy.
Modelling and Controlling of Induction Heating Unit for Induction Cooking Application
Authors: Kumar Singh Shubham , Agarwal Anshul , Kanumuri Tirupathiraju , Roy Molay 
Published: May 2020

Abstract
A study on the control methodology of voltage source inverter (VSI) fed series resonant circuit for induction heating has been done in this work with the goal that converter can be worked at about unity power factor. In this work, phase locked loop (PLL) has been accustomed to bring the converter’s switching frequency near to the natural frequency of series coil and capacitor branch of induction heater. Using this control method, the effectiveness of induction heater can be improved and necessity of input power is turned out to be less when compare to the fixed frequency operation. This control technique gives reliable operation of voltage source inverter fed circuit for varying load. Controlled phase locked loop gives increment or decrement in resonance frequency corresponding to the phase difference in voltage and current of resonant circuit. The coil of the induction heater is utilized as load in the resonant circuit of inverter. This power control procedure enables the inverter to operate near to the natural frequency for controlling power at all level. In this work, ZVS (zero-voltage switching) and ZCS (zero-current switching) condition has been obtained, and the switching losses are minimized. Pulse density modulated (PDM) power control method has been simulated to control the output power of a half bridge VSI fed induction heater.
Intrusion detection systems: A Comparison of soft computing techniques
Authors: Chauhan Anamika , Sharma Kapil 
Published: May 2020

Abstract
With rapid emergence of Internet of Things paradigm, there is a continual increase in the devices that are able to connect and exchange information, over the internet. This reachability has a negative consequence in the form of increased vulnerability of these devices to a variety of cyber attacks. The most efficient and pre emptive tool for this is an intrusion detection system. Since the attacks and threats continue to evolve over time, so the IDS should be able to learn as well to cope with the attacks. In this paper we have presented a comparison of some Soft computing techniques that can be used in designing of IDSs that can efficiently classify, detect and prevent attacks.
Profit based Unit Commitment Problem solving using Hybrid CUCKOO- GWO Algorithm
Authors: Hooda Manisha , Awasthi Y K , Thakur Niharika , Siddiqui A S 
Published: May 2020

Abstract
This paper proposes a hybrid approach using cuckoo search ahead with GWO to resolve PBUCP for a restructured power market. Under this structure, the issues in profit are improved using objective functions such as maximize profit using revenue and the total cost of the system and system constraints such as power demand constraints, reserve constraints, generator, and reserve limits and a minimum up and downtimes are determined. Here, two types of test systems such as IEEE-30 bus and IEEE-75 bus system is utilized. After the determination of the above objective functions, a hybrid method called Cuckoo- GWO algorithm is used for optimization. The simulations are done to demonstrate the performance of the proposed technique. At last, the comparison of the proposed and existing algorithms is evaluated in terms of profit and total operating cost for IEEE 30 bus system of 6-units and IEEE 75 bus system of 15-units respectively.
Hybrid technology for the production of highly integrated multi-chip microcircuits: problems and solutions
Authors: Ershova N. Y. , Shtykov A. S. , Shegelman I. , Vasilev A. S. , Yartsev A. V. 
Published: May 2020

Abstract
Innovative technologies in the field of microelectronics provide technological transformation of the crystal and multichip microcircuit industry, combining various methods of crystal mounting and packaging processes. An increase in the integration of electronic circuits, an increase in the number of peripheral elements and, as a result, an increase in the energy consumption of the crystal, lead to a significant increase in the complexity of solving the problems of packaging when the case is converted into a complex electronic device.
Chip crystals, according to current technological standards, are produced by a small number of specialized companies owned by transnational corporations. At the same time, in a number of countries there are qualified personnel specializing in the design of integrated circuits. One of the trends in the Russian market of multifunctional miniature devices is import substitution. A patent information search was conducted to identify trends and directions in the development of technologies in the field of packaging integrated circuits. A detailed analysis of the problem of the production of multi-chip microcircuits, systems in a package combining various packaging processes is shown; ways to solve it are shown, including applied research aimed at creating a hybrid multi-chip packaging technology combining crystals installed in a single package and on a single substrate using various methods installation - Wire bond and Flip chip.
Semantic Segmentation of color images via Feature Extraction Techniques
Authors: Sandesh Kumar Cheruku , Kumar Sharma Vinod , Sharma Abhay , Kumar Yadav Ashwani , Praveen Kumar Archek 
Published: May 2020

Abstract
In this research semantic segmentation (SS) by deep neural network is used. Segmentation of contextual information with the use of patch-patch between the regions and background. The patch-patch context is done with the help of ANNs (Artificial Neural Networks) and Adaboost to identify the semantic correlation of adjacent patches. Efficient piece-wise training of deep model is then assigned to eschew continuous inference through background propagation. For Patch-background context capturing the network is designed with the help of multi-scale image input and slide Pyramid pooling for the efficient performance. In this model we have used both ANNs and Adaboost. The simulation results are verified in the semantic segmentation dataset like MATLAB contextual modeling. The proposed technique will gave better accuracy. The evaluation metrics of invented method has been done in terms pixel accuracy. The model achieves outperforming innovation than the other algorithms on semantic segmentation.
Congestion reduction under IPFC based deregulated electricity market using AKH algorithm
Authors: Thakur Niharika , Awasthi Y K , Siddiqui A S , Hooda Manisha 
Published: May 2020

Abstract
With the Deregulation in the electric utilities across the globe there have been major issues faced viz., transmission losses, cost of generation and emission, voltage stability limits and congestion cost that have to be considered for reducing the congestion in the lines and consequently in power systems under the restructured framework. For achieving the said objective, this paper presents the Adaptive Krill Herd (AKH) algorithm-based model in which a support value is determined for optimization of the given objective functions. The FACTS device used is IPFC for reducing the congestion in the identified lines optimally by determining the parameters “Congestion Detection Index and Index of Total Congestion Cost”. The projected AKH optimizer model is compared with the conventional models viz PSO, GA, ABC algorithm based on IEEE 30 and 57 bus systems.
Photo-Voltaic based Smart Irrigation Cart
Authors: Anand A. , Banshwar A. , Sharma N. K. , Sharma B. B. , Pathak M. 
Published: May 2020

Abstract
The need of energy is increasing dramatically in all sectors of life. The cost-effective solution be the answer for all our energy requirements. Renewable energy is the best possible solution to replace conventional energy sources, both in terms of cost and environmental issues. While considering Indian farming system, electricity is a source of problem behind fruitful irrigation of the land. PV based smart irrigation cart can the solution for electricity problems faced by Indian farming where there is no electricity. The proposed approach consists of PV powered water pump system installed on a mobile cart for irrigating the field. The present work is based on the concept of “pay for power” where an independent source of power will be developed and utilized by the farmers for their irrigation purpose. It will also reduce the dependency of the farmers on conventional electrical companies and further reduces the cost of farming.
Supporting mathematics learning in situational-referential phase with emergent modeling
Authors: Pratiwi W D , Susanti E , Araiku J 
Published: May 2020

Abstract
This study aims to describe learning activities that can stimulate student activity in learning in this case their activities in submitting arguments related to mathematics in two important phases, namely the situational and referential phases. Improvement at this stage will greatly help students progress in the next stage, namely the general stage and formal mathematics. If each activity in this phase can be categorized as good, then students will not experience problems in building a complete understanding of mathematics. The study specifically answer the question ”How can the student learn to build understanding about the problem in situational and referential phase?” The description on how emergent models are used in stimulating the progress of the movement from model of to model for is elaborated. The specific model used was the percentage bar as a tool to understand as well as to solve the design activities. The method of this study is design research, started with preparation phase in formulating and revising the Hypothetical Learning Trajectory, preliminary teaching, teaching experiment, and retrospective analysis, the study showed that the lesson using the percentage as a model can support students’ understanding about the situation of the problem, this finding need to be proved for the next two stages, general and formal phase.
Analyzing student’s character values in high order thingking skills problems
Authors: Hutami N R , Aisyah N , Santoso B , Kurniadi E 
Published: May 2020

Abstract
This research is a qualitative descriptive study that aims to find out how the character values of students in learning use HOTS questions with PBL models. Data collection methods used were observation, written tests, and interviews. The focus of this research is the value of the character of curiosity, hard work, thorough, and creative. The results showed that the dominant character values that emerged were curiosity and hard work, which was due to the lack of HOTS type questions making students often ask the teacher how to solve these problems. Then because of the dominant curiosity, students work on the problem with hard work. While the character values the dominant does not appear are thorough and creative characters, it happens because of the lack of student training in working on various math problems making students only focus on what has been taught in the classroom without developing their thinking.
Control and rationalism value in mathematics modelling
Authors: Efriani A , Aisyah N , Indaryanti  
Published: May 2020

Abstract
Learning Mathematical modelling is an important part of mathematics. However, it is difficult to apply in learning. This research is a descriptive study with the aim of studying the learning process of mathematical modelling using worksheets (LKS) based on control and rationalism values in Junior High School Number 13 Palembang. The research subjects consisted of 37 students of class VIII.2. Data collection techniques in this study consisted of observation. Observations were made to see student activities which are appearance of control and rationalism value during the learning process and student activities using worksheets. The results of the study were obtained from student activities based on indicators of control and rationalism value during learning process with an average of 78.375 which were categorized as good result. Besides that, we observe control and rationalism value on worksheet with average of 77.79 which were categorized as good result. All learning processes use modelling stages only at the second meeting the stages of understanding the problem do not arise because the problem used continues from the problem at the first meeting so that it does not result in the emergence of control value indicators in understanding the problem.
Learning design of planes using context culture traditional house Bengkulah
Authors: Oktarina D , Somakim  , Darmawijoyo  , Araiku J 
Published: May 2020

Abstract
In this case, the research that will be carried out aims to find out the cultural context of the bengkulah traditional house. The research subjects are students of SMP Negeri 1 Tanjung Lubuk. The method used in this research is the validation study design research method, alleged learning (Hypothetical Learning Trajectory). Through an interactive process including designing (Preliminary Design), (Teaching Experiment) and (Retrospective Analysis). Data collection is done through several things including making video recordings of class events and group work, collecting student work, giving preliminary and final tests, and interviewing students. So that it can show the process of implementing learning, that the use of the cultural context of the custom house can support students understanding material Rectangles and triangles.
Student’s response to realistic mathematics learning with the context of Palembang songket
Authors: Febriani K , Somakim  , Araiku J 
Published: May 2020

Abstract
This study aims to see students’ responses to mathematics learning with the context of Palembang songket motifs. The subjects of this study were Songket and 31 students from SMPN 9 Palembang. This research is a descriptive study. The instruments used are questionnaires, interviews, and documentation. The results show that students’ responses toward the learning of realistic mathematics using the Palembang songket context are positive, indicated by students’ satisfactory of 81.4%, activity of 88%, learning sophistication of 88.5%, and 75.6% of the students stated that the instruction was beneficial for mathematical modeling and awareness. Hence, it is suggested that the need for realistic mathematics learning using cultural contexts is carried out in the classroom to support students interpreting concepts and interpreting mathematics learning, and making learning mathematics more enjoyable.
Developing worksheet on mathematical modeling for financial literation using social arithmetics
Authors: Suendang T , Darmawijoyo  
Published: May 2020

Abstract
This study aims to: (1) Produce Student Worksheets on Financial Literacy based on valid and practical Mathematical Modeling subject of Social Arithmetic, and (2) Find out the potential effects on learning outcomes from the development of Student Worksheets Financial Literacy based on Mathematical Modeling the subject of Social Arithmetic. This type of research used is the Design Research Development Study type. The subjects of this study were eighth grade students of SMA Negeri 2 Tungkal Ilir. Data collection techniques are by walk through, documents, tests, questionnaires, and interviews. The results of this study are: (1) This research has produced a Student Literature Worksheet based on Mathematical Modeling based on valid and practical Social Arithmetic subjects. (2) Student Worksheets Mathematical Modeling-based Financial Literacy developed has a potential effect on learning outcomes.
Development of teaching materials arithmetic sequence and series based on android for problem based learning
Authors: Sari M S , Hapizah  , Susanti E , Scristia  
Published: May 2020

Abstract
This research aims to produce the teaching materials based on Android which is valid and practical in order to support the senior high school students in learning arithmetic sequence and series for problem based learning. The subjects of this research were the eleventh and twelfth grade students of Senior High School Number 1 Indralaya Utara. This research is kind of development research by adapting model development of ADDIE. The stages of the research conducted consist of analyze, design, and development. Data collection techniques which were used in this research were by walkthrough, observation and questionaire. The result of this research is teaching materials of arithmetic sequence and series based on Android for problem based learning are valid and practical. Said to be valid because based on the assessment of experts who stated that in terms of content, construct and language in teaching materials had met the valid criteria. Whereas, based on the results of the questionnaire and observation it was concluded that the students think that this teaching materials is interesting, easy to use, easy to understand, can improve enthusiasm for learning and can help to improve concepts understanding of students.
A new learning trajectory on the pyramid volume for secondary school
Authors: Fuadiah N F , Sawitri Z A 
Published: May 2020

AbstractThis research aims to design Learning Trajectory (LT) for pyramid volume learning. This LT was designed based on curriculum review on the volume of pyramid in secondary schools and study of learning obstacles based on didactic, ontogenic, and epistemological aspects identified through diagnostic tests, interviews with mathematics teachers, and analysis of lesson plan used by the teacher in learning then analyzed using Didactical Design Research. This study involved 27 8th grade students and one mathematics teacher. The results showed that the concept of Pythagoras and volume of cube with learning media support played an important role in the learning trajectory of the pyramid volume.