4,514 results
Search Results
2. ... As Nature and As Bodies Do: linn meyers's Graph Paper Drawings.
- Author
-
Amirkhani, Jordan
- Subjects
DRAWING ,CHARTS, diagrams, etc. - Published
- 2020
- Full Text
- View/download PDF
3. Composite Spectra, Paper XXIII: HD 69479/80, a 90‐day binary with a cool‐giant primary.
- Author
-
Griffin, R. Elizabeth and Griffin, Roger F.
- Subjects
- *
HR diagrams , *CHARTS, diagrams, etc. , *STELLAR rotation , *RED giants , *DWARF stars , *BINARY stars , *TEFF - Abstract
HD 69479/80 is a composite‐spectrum binary whose components are a late‐G giant and an early‐A dwarf. The orbit has a period of only 91 days (which seems short for a system containing a cool giant with a radius of ∼13 solar radii), and a very small, but probably significantly non‐zero, eccentricity. We separated the component spectra by a procedure of spectral subtraction, using a standard single giant spectrum as a template, and found the closest match to the spectrum of the cool component to be that of 15 Cyg (G8 III). We measured the radial velocity of the secondary component from each uncovered spectrum, solved the SB2 orbit for the system, and derived a mass ratio m1/m2 of 1.318. Fitting synthetic spectra to the spectra of the secondary component indicated a Teff of 9250 K, log g = 3.75, and a rotational velocity of ∼90 km s−1. We determined the difference in absolute magnitude, δV, between the component stars to be 1.07 mag, the late‐type component being the brighter; we could thence calculate radii and luminosities for both components, plot their H–R diagram positions, and fit evolutionary tracks. The best‐fitting tracks indicated masses of 2.9 M⊙ for the giant and 2.2 M⊙ for the dwarf, which was fully in keeping with the mass ratio given by the SB2 orbit. The track for the dwarf star confirms that this component has begun to evolve away from the ZAMS. Fitting the corresponding isochrone to those H–R diagram positions indicated a log (age) of the system of approximately 8.60 Gyr since the cool star evolved from the ZAMS, which is a little younger than the ages deduced for many cool giants. We also detected the λ 6707‐Å lithium line in the spectrum of the giant component, thus adding to the evidence that it is near the start of its primary ascent of the red‐giant branch. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
4. Give them more.
- Author
-
Hogan, Meghan
- Subjects
RETAIL industry ,HOUSE brands ,PAPER products industry ,HOUSEHOLD supplies ,PAPER products ,CHARTS, diagrams, etc. - Abstract
The article shares insights for U.S. retailers on improving sales of store brand paper products. It notes that paper products are big business, but that the industry is seeing only moderate sales growth in 2008-2013. It references market researcher Mintel's February 2014 report "Household Paper Products - US." It cites consumer demand for longer lasting, higher-quality products, new product innovation, and a focus on sustainability. A table is presented on paper product category performance.
- Published
- 2015
5. The top 100 papers.
- Author
-
Van Noorden, Richard, Maher, Brendan, and Nuzzo, Regina
- Subjects
BIBLIOGRAPHICAL citations ,BIBLIOGRAPHICAL citation research ,BIOINFORMATICS ,PHYLOGENY ,RESEARCH ,CHARTS, diagrams, etc. - Abstract
The article discusses the most-cited researches in history. Topics include topics of papers and citations that has allowed them to reach the top the most cited research like Bioinformatics, Phylogenetics and Statistics, a chart showing the top 10 most cited researches and information on the first systematic effort to track citations the Science Citation Index (SCI).
- Published
- 2014
- Full Text
- View/download PDF
6. Curie temperature of Ising ferromagnetic film and its dependence on nn exchange coupling.
- Author
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Singh, Satya Pal, Shekhawat, Manoj Singh, Bhardwaj, Sudhir, and Suthar, Bhuvneshwer
- Subjects
CURIE temperature ,PHASE diagrams ,UNIT cell ,CHARTS, diagrams, etc. ,PAPER arts - Abstract
This paper work reveals certain aspects of magnetic properties of bcc ferromagnetic films. Variations in next nearest neighbor interaction drastically alter Curie temperature (T
c ) of the film. A lattice size of 50×50×50 has been taken with one spin site each at the centers of the unit cells. Metropolis algorithm has been exploited with periodic boundary conditions along the three directions i.e. X, Y and Z. The phase diagram plotted between Curie temperature (Tc ) and next nearest neighbor interactions (Jnn ) shows a linear response. It helps to correlate and explore the underlying physics of spontaneous magnetization process in bcc Ising ferromagnetic films. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
7. Apple Art.
- Subjects
CHARTS, diagrams, etc. ,PAPER arts - Abstract
The article offers a step-by-step instructions on making an apple parts diagram.
- Published
- 2023
8. A new property of congruence lattices of slim, planar, semimodular lattices.
- Author
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Czédli, Gábor and Grätzer, George
- Subjects
SEMIMODULAR lattices ,GEOMETRY ,CHARTS, diagrams, etc. ,LAMPS ,CONGRUENCE lattices - Abstract
The systematic study of planar semimodular lattices started in 2007 with a series of papers by G. Gr¨atzer and E. Knapp. These lattices have connections with group theory and geometry. A planar semimodular lattice L is slim if M3 it is not a sublattice of L. In his 2016 monograph, “The Congruences of a Finite Lattice, A Proof-by-Picture Approach”, the second author asked for a characterization of congruence lattices of slim, planar, semimodular lattices. In addition to distributivity, both authors have previously found specific properties of these congruence lattices. In this paper, we present a new property, the Three-pendant Three-crown Property. The proof is based on the first author’s papers: 2014 (multifork extensions), 2017 (C
1 -diagrams), and a recent paper (lamps), introducing the tools we need. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
9. What Is Your Story?
- Subjects
REPORTERS & reporting ,REPORT writing ,CHARTS, diagrams, etc. ,PHOTOGRAPHS ,PAPER - Published
- 2023
10. Paper makers for duty shield.
- Subjects
PAPER industry ,ANTIDUMPING duties ,DUTY-free importation ,UPGRADING of industrial equipment ,CHARTS, diagrams, etc. - Abstract
The article reports on India's paper producers seek exemption of import duty on raw materials, levy of countervailing duty on import of paper and setting up of a technology upgradation fund for the sector by the central government and presents yearly statistics on import and domestic production.
- Published
- 2016
11. The Impost of the Utilization of Plastic Denomination: A Comfort or a Melancholy.
- Author
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Awan, Muhammad Zahid, Hasnain, Tafakhar, and Safdar, Zulqarnain
- Subjects
BANK credit cards ,PAYMENT systems ,CREDIT card industry ,SAFETY paper ,CHARTS, diagrams, etc. - Abstract
Remembering the changing innovation supplanting the customary idea of paying not through money but rather by plastic denomination (credit and platinum cards), this exploration was embraced to consider the mindfulness and utilization of plastic coinage among the buyers. The subject that was thus decided for this examination is "The Impost of the Utilization of plastic denomination: A comfort or a melancholy". The example was chosen by the Stratified Random Sampling Method and comprised of purchasers including understudies, working experts, government authorities, house producers and senior nationals. The specimen size chose was 200. It was found that shoppers favor plastic coinage over paper coinage and the real advantage that the card gives to the clients is the accommodation and openness. The significant issue as indicated by them is the expanded value-based expenses and superfluous conventions to secure the cards from the budgetary foundations. They felt that the fate of plastic coinage is brilliant and as indicated by them, the following thing to come through innovation would be the utilization of advanced marks. [ABSTRACT FROM AUTHOR]
- Published
- 2016
12. PAPERS.
- Subjects
PAPER industry ,PAPER prices ,CHARTS, diagrams, etc. - Published
- 2018
13. Efforts to Improve Free Body Diagrams.
- Author
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Leipold, Kate N. and Ivancic, Sarilyn R.
- Subjects
MECHANICAL engineering education ,CHARTS, diagrams, etc. ,EQUILIBRIUM ,CURRICULUM - Abstract
The goal of this paper is to present two novel approaches to teaching the components of and use of free body diagrams (FBDs) in core mechanical engineering courses at the Rochester Institute of Technology (RIT). The first technique is a mnemonic device to remember the key components of FBDs. This device is referred to as "The ABC's of FBDs". It uses the first four letters of the alphabet to identify required FBD components. The second pedagogical method developed and implemented is a game based off of "Paper Telephone". The game emphasizes the connection between the FBD and the equations of equilibrium. At this point, these devices have only been utilized for 3 semesters however, anecdotal evidence indicates that the inclusion of these devices has aided in the retention of FBD components in follow on courses. [ABSTRACT FROM AUTHOR]
- Published
- 2018
14. PAPERS.
- Subjects
CIGARETTE paper ,MARKET share ,BRAND name products ,BRAND name product sales & prices ,CHARTS, diagrams, etc. - Published
- 2018
15. SPECTRAL ANALYSIS OF ARITHMETIC FUNCTION SIGNED GRAPHS.
- Author
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ALFRAN, HOWIDA ADEL, RAJENDRA, R., REDDY, P. SIVA KOTA, KEMPARAJU, R., and ALTOUM, SAMI H.
- Subjects
ARITHMETIC functions ,GRAPH theory ,GRAPHIC methods ,EIGENVALUES ,CHARTS, diagrams, etc. - Abstract
In this paper, we discuss spectrum and energy of Arithmetic function signed graphs with respect to an arithmetical function and present some results. [ABSTRACT FROM AUTHOR]
- Published
- 2024
16. THE ALMANAC: PACKAGING AND PAPER INDUSTRY BANKRUPTCY FILINGS.
- Subjects
BANKRUPTCY ,PACKAGING industry ,PAPER industry ,CHARTS, diagrams, etc. - Published
- 2017
17. Annals of Hepatology: Viewpoints from Afar.
- Author
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Yoshida, Eric M. and Xingshun Qi
- Subjects
HEPATOLOGY ,RESEARCH ,FATTY liver ,OXIDATION-reduction reaction ,LIVER cancer ,PERIODICALS ,CHARTS, diagrams, etc. - Abstract
The article presents an introduction on history of the journal "Annals of Hepatology", charts and diagrams about geographical distribution of papers and articles published in journal, and lists the top papers on non-alcoholic fatty liver disease, importance of redox state, and Hepatocellular carcinoma
- Published
- 2018
- Full Text
- View/download PDF
18. SAGE research papers on aspects of COVID-19.
- Subjects
SARS-CoV-2 ,COVID-19 ,SCHOOLS ,PRINCIPLE (Philosophy) ,CHARTS, diagrams, etc. - Abstract
The article presents Education Journal publishing a series of research reports on the virus SARS-CoV-2 and the COVID-19 disease. Topics include potential effect of school closure on a COVID-19 Epidemic, excludes the graphs in the original; the General principles and assumptions on transmission of SARS-CoV-2s, being short enough to reproduce in full; and the Imperial College paper having a huge impact on policy, not include tables and diagrams.
- Published
- 2020
19. Time Series Prediction of Sea Surface Temperature Based on an Adaptive Graph Learning Neural Model.
- Author
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Wang, Tingting, Li, Zhuolin, Geng, Xiulin, Jin, Baogang, and Xu, Lingyu
- Subjects
OCEAN temperature ,TIME series analysis ,ARTIFICIAL neural networks ,FORECASTING ,LEARNING modules ,CHARTS, diagrams, etc. - Abstract
The accurate prediction of sea surface temperature (SST) is the basis for our understanding of local and global climate characteristics. At present, the existing sea temperature prediction methods fail to take full advantage of the potential spatial dependence between variables. Among them, graph neural networks (GNNs) modeled on the relationships between variables can better deal with space–time dependency issues. However, most of the current graph neural networks are applied to data that already have a good graph structure, while in SST data, the dependency relationship between spatial points needs to be excavated rather than existing as prior knowledge. In order to predict SST more accurately and break through the bottleneck of existing SST prediction methods, we urgently need to develop an adaptive SST prediction method that is independent of predefined graph structures and can take full advantage of the real temporal and spatial correlations hidden indata sets. Therefore, this paper presents a graph neural network model designed specifically for space–time sequence prediction that can automatically learn the relationships between variables and model them. The model automatically extracts the dependencies between sea temperature multi-variates by embedding the nodes of the adaptive graph learning module, so that the fine-grained spatial correlations hidden in the sequence data can be accurately captured. Figure learning modules, graph convolution modules, and time convolution modules are integrated into a unified end-to-end framework for learning. Experiments were carried out on the Bohai Sea surface temperature data set and the South China Sea surface temperature data set, and the results show that the model presented in this paper is significantly better than other sea temperature model predictions in two remote-sensing sea temperature data sets and the surface temperature of the South China Sea is easier to predict than the surface temperature of the Bohai Sea. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
20. In-plants' Paper Buying Strategies.
- Subjects
PRINTING properties of paper ,IN-plant printing services ,CHARTS, diagrams, etc. - Abstract
A chart is presented that lists paper-buying habits of in-plant printing services including most popular papers, use of brand names for buying paper, and dependence of multiple merchants for obtaining paper.
- Published
- 2016
21. Nuclear Future: Call for papers 2016.
- Subjects
- *
NUCLEAR energy , *PERIODICAL editors , *PUBLICATIONS , *DEADLINES , *RADIOACTIVE waste disposal management , *CHARTS, diagrams, etc. - Abstract
The article talks of the editorial board of the magazine inviting abstracts on nuclear future 2016 for publication in Volume 12 of the magazine and charts the theme for papers including radioactive waste disposal, submission deadlines, issue dates, and provisional themes for the year 2017.
- Published
- 2016
22. What do we know about the role of enterprise architecture in enterprise integration? A systematic mapping study.
- Author
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Banaeianjahromi, Negin and Smolander, Kari
- Subjects
BUSINESS enterprises ,ORGANIZATION management ,INFORMATION technology ,ENTERPRISE application integration (Computer systems) ,RESEARCH ,CHARTS, diagrams, etc. - Abstract
Purpose – Constant changes in the environment seem to have become the biggest challenge of a modern enterprise, which emphasizes the constant need to integrate the enterprise into its changing environment. Aiming at eliminating the integration challenges, EA is proposed as a solution. The purpose of this paper is to survey and analyse the available literature on determining the role of EA in EI and also to identify gaps and state-of-the-art in research. Design/methodology/approach – This paper presents a systematic mapping study that found 50 papers in the intersection of EA and EI, these papers were surveyed, analysed, and classified with respect to research focus, research method, and paper type. Findings – Based on the analyses of the final 50 articles, the authors realized that “EA framework” is the dominating research focus of these studies. “Evaluation research” is recognized as the most common paper type in this area. However, “Experience paper” was a rare paper type in this research domain. “Constructive research” and “Case study/multiple case studies” are widely applied as the research method. “Survey”, “Delphi study” and “Grounded theory” are the least employed research methods. The conclusion was that there is a need for empirical research in this area. After analysing the articles based on their publication year, the authors also noticed a significant growth between 2004 and 2010. After 2010 the number of publications had a downward trend. Originality/value – To the knowledge of the authors, this study is the first systematic literature study regarding the role of EA in EI. There are several systematic literature reviews about the EA or EI separately but none of them has addressed the specific realm of the research. Hence, the goal of this study is to provide a map of existing literature to enable improvement of the practice with the known research results and to identify gaps for future research. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
23. Adaptive Attentional Network for Few-Shot Relational Learning of Knowledge Graphs.
- Author
-
Ma, Ruixin, Li, Zeyang, Ma, Yunlong, Wu, Hao, Yu, Mengfei, and Zhao, Liang
- Subjects
KNOWLEDGE graphs ,TRADITIONAL knowledge ,CHARTS, diagrams, etc. - Abstract
Few-shot knowledge graph reasoning is a research focus in the field of knowledge graph reasoning. At present, in order to expand the application scope of knowledge graphs, a large number of researchers are devoted to the study of the multi-shot knowledge graph model. However, as far as we know, the knowledge graph contains a large number of missing relations and entities, and there are not many reference examples at the time of training. In this paper, our goal is to be able to infer the correct entity given a few training instances, or even only one training instance is available. Therefore, we propose an adaptive attentional network for few-shot relational learning of knowledge graphs, extracting knowledge based on traditional embedding methods, using the Transformer mechanism and hierarchical attention mechanism to obtain hidden attributes of entities, and then using a noise checker to filter out unreasonable candidate entities. Our model produces large performance improvements on the NELL-One dataset. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
24. How to review a paper for Heart.
- Author
-
Otto, Catherine M.
- Subjects
INFORMATION resources ,MEDICAL journalism ,ABSTRACTING ,MEDICAL research ,REPORT writing ,CHARTS, diagrams, etc. - Abstract
In this article, the author discusses the significance of pre-publication peer review for a medical journal and offers tips on how to review a paper for the periodical. Topics discussed include an approach to review a research paper by first reading the abstract, the purpose of the introduction and the importance of figures and graphs in providing data in a better manner than only in text or tables.
- Published
- 2015
- Full Text
- View/download PDF
25. Sniffing out tissues.
- Author
-
Steen, Matthew
- Subjects
- *
TISSUE paper , *MOISTURE , *CHARTS, diagrams, etc. , *PRICES - Abstract
The article offers information on miscellaneous topics including required properties of facial tissues such as its moisture absorbency; brief information on tissues like Kleenex Relax Lavender 85 Tissues from Kleenex; and a chart representing sales of tissues in Australia.
- Published
- 2018
26. Search for Evolutionary Changes in the Periods of the Cepheids CEa Cas and CEb Cas.
- Author
-
Berdnikov, L. N., Belinskii, A. A., Pastukhova, E. N., Burlak, M. A., Ikonnikova, N. P., Mishin, E. O., and Shatskii, N. I.
- Subjects
OPEN clusters of stars ,LIGHT elements ,PARABOLA ,STELLAR evolution ,SPANNING trees ,CHARTS, diagrams, etc. - Abstract
For two classical Cepheids, CEa Cas and CEb Cas, members of the open cluster NGC 7790, we have constructed diagrams spanning a time interval of 125 years. The diagrams have the shape of parabolas, which has allowed us for the first time to determine the quadratic light elements and to calculate the rates of evolutionary changes in their periods: s yr for CEa Cas and s yr for CEb Cas, in agreement with the theoretical calculations for the second and third crossings of the instability strip, respectively. The pulsation stability test proposed by Lombard and Koen has confirmed that the changes in the periods are real. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
27. COMPUTADS AND STRING DIAGRAMS FOR N-SESQUICATEGORIES.
- Author
-
Araújo, Manuel
- Subjects
ALGEBRA ,MONADS (Mathematics) ,ARBITRARY constants ,STRING figures ,CHARTS, diagrams, etc. - Abstract
Copyright of Cahiers de Topologie et Geometrie Differentielle Categoriques is the property of Andree C. EHRESMANN and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
28. Edge (m,k)-choosability of graphs.
- Author
-
Soorya, P. and Germina, K. A.
- Subjects
LOGICAL prediction ,COLLECTIONS ,CHARTS, diagrams, etc. - Abstract
Let G = (V , E) be a simple, connected graph of order n and size m. Then, G = (V , E) is said to be edge (m , k) -choosable, if there exists a collection of subsets of the edge set, { S k (e) : e ∈ E (G) } of cardinality k , such that S k (e 1) ∩ S k (e 2) = ∅ , whenever e 1 and e 2 are incident. This paper initiates a study on edge (m , k) -choosability of certain fundamental classes of graphs and determines the maximum value of k , for which the given graph G is edge (m , k) -choosable. Also, in this paper, the relation between edge choice number and other graph theoretic parameters is discussed and we have given a conjecture on the relation between edge choice number and matching number of a graph. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
29. On the Inverse Symmetric Division Deg Index of Unicyclic Graphs.
- Author
-
Albalahi, Abeer M. and Ali, Akbar
- Subjects
CHARTS, diagrams, etc. ,MOLECULAR connectivity index ,MOLECULAR graphs - Abstract
The symmetric division deg (SDD) index is among the 148 discrete Adriatic indices that were developed about a decade ago. Motivated by the success of the SDD index, Ghorbani et al. in a recent paper proposed the inverse version of this index and called it the inverse symmetric division deg (ISDD) index. In the aforementioned paper, the graphs possessing the maximum and minimum ISDD index over the set of all tree graphs having the given order were found. The present paper addresses the problem of finding the graphs having the largest and smallest ISDD index from the set of all connected unicyclic graphs having the specified order. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
30. EXPORTERS IN 2015.
- Subjects
EXPORTERS ,CHARTS, diagrams, etc. - Abstract
A chart is presented depicting lists of top exporters under U.S. foreign trade in the category of ocean container transport in the U.S. in 2015 including oil industry firm Koch Industries, International Forest Product and recycling center WM Recycle America.
- Published
- 2016
31. A study on graph topology.
- Author
-
Aniyan, Achu and Naduvath, Sudev
- Subjects
TOPOLOGY ,CHARTS, diagrams, etc. ,CLASS groups (Mathematics) ,GEOMETRIC vertices ,AXIOMS - Abstract
The concept of topology defined on a set can be extended to the field of graph theory by defining the notion of graph topologies on graphs where we consider a collection of subgraphs of a graph G in such a way that this collection satisfies the three conditions stated similarly to that of the three axioms of point-set topology. This paper discusses an introduction and basic concepts to the graph topology. A subgraph of G is said to be open if it is in the graph topology T
G . The paper also introduces the concept of the closed graph and the closure of graph topology in graph topological space using the ideas of decomposition-complement and neighborhood-complement. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
32. Maximal Ferrers Diagram Codes: Constructions and Genericity Considerations.
- Author
-
Antrobus, Jared and Gluesing-Luerssen, Heide
- Subjects
BINARY codes ,CHARTS, diagrams, etc. ,CIPHERS ,INFORMATION theory ,CONSTRUCTION ,TASK analysis - Abstract
This paper investigates the construction of rank-metric codes with specified Ferrers diagram shapes. These codes play a role in the multilevel construction for subspace codes. A conjecture from 2009 provides an upper bound for the dimension of a rank-metric code with given specified Ferrers diagram shape and rank distance. While the conjecture in its generality is wide open, several cases have been established in the literature. This paper contributes further cases of Ferrers diagrams and ranks for which the conjecture holds true. In addition, the proportion of maximal Ferrers diagram codes within the space of all rank-metric codes with the same shape and dimension is investigated. Special attention is being paid to MRD codes. It is shown that for growing field size the limiting proportion depends highly on the Ferrers diagram. For instance, for $[m\times 2]$ -MRD codes with rank 2 this limiting proportion is close to $1/e$. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
33. Transient and Static Hybrid-Triggered Active Clamp Design for Power-Rail ESD Protection.
- Author
-
Lu, Guangyi, Wang, Yuan, and Zhang, Xing
- Subjects
ELECTROSTATIC discharges ,COMPLEMENTARY metal oxide semiconductors ,ELECTRIC circuits ,TRANSISTORS ,CLAMPING circuits ,CHARTS, diagrams, etc. - Abstract
A transient and static hybrid-triggered active clamp is proposed in this paper. By skillfully incorporating different detection mechanisms, the proposed clamp achieves enhanced static electrical overstress protection capability over the transient one. Furthermore, the proposed clamp achieves improved electrostatic discharge reaction speed in both human body model and charged device model events over the static one. Moreover, the superior transient-noise immunity of the proposed clamp over traditional transient ones is essentially revealed in this paper. The proposed clamp is successfully verified in a 65-nm bulk CMOS process. In addition, the design flexibility of the proposed clamp for other processes is also deeply discussed in this paper. [ABSTRACT FROM PUBLISHER]
- Published
- 2016
- Full Text
- View/download PDF
34. Graph Mixed Random Network Based on PageRank.
- Author
-
Ma, Qianli, Fan, Zheng, Wang, Chenzhi, and Tan, Hongye
- Subjects
RANDOM graphs ,DATA augmentation ,CLASSIFICATION algorithms ,MESSAGE passing (Computer science) ,CHARTS, diagrams, etc. - Abstract
In recent years, graph neural network algorithm (GNN) for graph semi-supervised classification has made great progress. However, in the task of node classification, the neighborhood size is often difficult to expand. The propagation of nodes always only considers the nearest neighbor nodes. Some algorithms usually approximately classify by message passing between direct (single-hop) neighbors. This paper proposes a simple and effective method, named Graph Mixed Random Network Based on PageRank (PMRGNN) to solve the above problems. In PMRGNN, we design a PageRank-based random propagation strategy for data augmentation. Then, two feature extractors are used in combination to supplement the mutual information between features. Finally, a graph regularization term is designed, which can find more useful information for classification results from neighbor nodes to improve the performance of the model. Experimental results on graph benchmark datasets show that the method of this paper outperforms several recently proposed GNN baselines on the semi-supervised node classification. In the research of over-smoothing and generalization, PMRGNN always maintains better performance. In classification visualization, it is more intuitive than other classification methods. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
35. Cross attention fusion for knowledge graph optimized recommendation.
- Author
-
Huang, Weijian, Wu, Jianhua, Song, Weihu, and Wang, Zehua
- Subjects
KNOWLEDGE graphs ,RECOMMENDER systems ,ASSOCIATION rule mining ,CHARTS, diagrams, etc. ,PROBLEM solving - Abstract
Knowledge Graph has attracted a wide range of attention in the field of recommendation, which is usually applied as auxiliary information to solve the problem of data sparsity. However, most recommendation models cannot effectively mine the associations between the items to be recommended and the entities in the Knowledge Graph. In this paper, we propose CAKR, a knowledge graph recommendation method based on the cross attention unit, which is similar to MKR, a multi-task feature learning general framework that uses knowledge graph embedding tasks to assist recommendation tasks. Specifically, we design a new method to optimize the feature interaction between the items and the corresponding entities in the Knowledge Graph and propose a feature cross-unit combined with the attention mechanism to enhance the recommendation effect. Through extensive experiments on the public datasets of movies, books, and music, we prove that CAKR is better than MKR and other knowledge graph recommendation methods so that the new feature cross-unit designed in this paper is effective in improving the accuracy of the recommendation system. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
36. MBHAN: Motif-Based Heterogeneous Graph Attention Network.
- Author
-
Hu, Qian, Lin, Weiping, Tang, Minli, and Jiang, Jiatao
- Subjects
VECTOR spaces ,MACHINE learning ,CHARTS, diagrams, etc. - Abstract
Graph neural networks are graph-based deep learning technologies that have attracted significant attention from researchers because of their powerful performance. Heterogeneous graph-based graph neural networks focus on the heterogeneity of the nodes and links in a graph. This is more effective at preserving semantic knowledge when representing data interactions in real-world graph structures. Unfortunately, most heterogeneous graph neural networks tend to transform heterogeneous graphs into homogeneous graphs when using meta-paths for representation learning. This paper therefore presents a novel motif-based hierarchical heterogeneous graph attention network algorithm, MBHAN, that addresses this problem by incorporating a hierarchical dual attention mechanism at the node-level and motif-level. Node-level attention aims to learn the importance between a node and its neighboring nodes within its corresponding motif. Motif-level attention is capable of learning the importance of different motifs in the heterogeneous graph. In view of the different vector space features of different types of nodes in heterogeneous graphs, MBHAN also aggregates the features of different types of nodes, so that they can jointly participate in downstream tasks after passing through segregated independent shallow neural networks. MBHAN's superior network representation learning capability has been validated by extensive experiments on two real-world datasets. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
37. Unsupervised Spectral Feature Selection With Dynamic Hyper-Graph Learning.
- Author
-
Zhu, Xiaofeng, Zhang, Shichao, Zhu, Yonghua, Zhu, Pengfei, and Gao, Yue
- Subjects
SPARSE matrices ,CHARTS, diagrams, etc. ,LAPLACIAN matrices ,FEATURE selection ,COVARIANCE matrices - Abstract
Unsupervised spectral feature selection (USFS) methods could output interpretable and discriminative results by embedding a Laplacian regularizer in the framework of sparse feature selection to keep the local similarity of the training samples. To do this, USFS methods usually construct the Laplacian matrix using either a general-graph or a hyper-graph on the original data. Usually, a general-graph could measure the relationship between two samples while a hyper-graph could measure the relationship among no less than two samples. Obviously, the general-graph is a special case of the hyper-graph and the hyper-graph may capture more complex structure of samples than the general graph. However, in previous USFS methods, the construction of the Laplacian matrix is separated from the process of feature selection. Moreover, the original data usually contain noise. Each of them makes difficult to output reliable feature selection models. In this paper, we propose a novel feature selection method by dynamically constructing a hyper-graph based Laplacian matrix in the framework of sparse feature selection. Experimental results on real datasets showed that our proposed method outperformed the state-of-the-art methods in terms of both clustering and segmentation tasks. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
38. COMMENTS ON "ANALYSIS OF HEAT TRANSFER AND IRREVERSIBILITY OF ORC EVAPORATOR FOR SELECTING WORKING FLUID AND OPERATING CONDITIONS".
- Author
-
AWAD, Mohamed M.
- Subjects
HEAT transfer ,WORKING fluids ,HEAT pipes ,EVAPORATORS ,HEAT ,CHARTS, diagrams, etc. - Abstract
Commentaries are presented on Ye et al. [1]'s paper, where the authors investigated the performance of heat transfer in evaporator under the case that the parameters of the heat source and temperature of pinch point were identified. They utilized the graphical method of temperature-heat (T-Q) diagram analysis. Also, they utilized the entransy principle in their analysis. Commentaries show the reality that the graphical method of T-Q diagram analysis belongs to Professor Adrian Bejan, who first proposed it in 1977. In addition, many instances in the literature are given to indicate disputes for the entransy principle by oppositionists of "entransy" from various countries. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
39. A Hybrid Self-Tracking Receiver Implementation With Direction-of-Arrival Estimation for Retro-Directive Antenna Systems.
- Author
-
Winterstein, Andreas and Dreher, Achim
- Subjects
DIRECTION of arrival estimation ,PHASE-locked loops ,ANTENNAS (Electronics) ,GATE array circuits ,PHASE detectors ,CHARTS, diagrams, etc. - Abstract
Self-tracking receivers have been suggested for satellite and mobile communication applications. In this paper, we propose and demonstrate an array receiver (Rx) architecture based on phase-locked loops. The system is capable of automatically tracking a moving source and providing direction-of-arrival (DOA) estimates calculated from array signal phase differences. After deriving the system transfer functions, we show a digital implementation of the receiver and experimentally prove its phase detection capability. In combination with an eight-element linear array and analog front ends, we build a hybrid receiver and demonstrate its DOA estimation performance in static and dynamic outdoor setups. This paper gives the details about theoretic principles, implementation concept, and realization of the proposed receiver. We demonstrate DOA errors below 4° and show the reproducibility of the results. Using dynamic experiments, we verify the tracking ability of the system, which makes it applicable to retrodirective antennas. [ABSTRACT FROM PUBLISHER]
- Published
- 2017
- Full Text
- View/download PDF
40. Water Sources Diagram and Its Applications.
- Author
-
Calixto, Ewerton Emmanuel da Silva, Pessoa, Fernando Luiz Pellegrini, Mirre, Reinaldo Coelho, Francisco, Flávio da Silva, and Queiroz, Eduardo Mach
- Subjects
SEWAGE purification ,CHARTS, diagrams, etc. ,PAPER pulp ,PLANT-water relationships ,GEOTHERMAL resources - Abstract
Water Sources Diagram (WSD) has proved to be one of the most efficient methods to reduce industrial freshwater consumption and to provide a minimum amount of wastewater to be treated. Different types of industry have been benefited from the use of this technique, which resulted in great savings in the design of the effluent treatment systems. Among the successful case studies, we mention herein applications in systems with wastewater treatment, thermal and water plants' integration, oil refineries, petrochemicals, batch processes, pulp and paper plants, and textile plants. The degree of WSD maturity motivated researchers to not only improve WSD algorithms, but also extend the concept of the Sources Diagram to Source/Sink types of process. This paper presents a background of WSD progress as well as insights into future perspectives using the Sources Diagrams' concept. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
41. Finding the Originality of Research on the Application of Lean Manufacturing (LM) With The Development of Systematic Literature Review (SLR) and K Chart.
- Author
-
Rochman, Yuli Agusti, Herliansyah, Muhammad K. Kusumawan, and Sudiarso, Andi
- Subjects
LEAN management ,CHARTS, diagrams, etc. ,MANUFACTURING industries ,DECISION making in business ,ORGANIZATIONAL goals - Abstract
The purpose of this paper is to demonstrate the ability of researchers to develop a Systematic Literature Review (SLR) framework by adding the K chart framework as a new structured, systematic, and visualized approach to conducting literature reviews. The author verified the new SLR framework through lean manufacturing (LM) implementation case study. This methodology uses a literature review that relates to the application of Lean manufacturing. The main tools used to compile the literature review are the Systematic Literature Review (SLR) and the K chart. This research procedure is a combination of the SLR implementation steps with the K-Chart development steps. The new SLR is verified by applying it to a case study of LM implementation. The new SLR can be applied to case studies of LM implementation. This research also describes the new SLR framework as a new structured, systematic, and visualized approach. Finally, a series of research originality was obtained through previous research that has been published with the search keyword lean manufacturing implementation. This paper provides an alternative new visual tool for decision-makers in the manufacturing industry regarding the implementation of LM. The visual aids are easy for management and workers to understand and help manufacturing organizations improve LM implementation success. This study demonstrates the potential of finding gaps in the LM implementation research presented for further development of the LM methodology. LM with the aim of the manufacturing industry, the results of this study are expected to positively influence the success of LM implementation. Implementing LM can be an effective solution to help manufacturers achieve organizational goals. The main value of this paper lies in the proposed new SLR framework based on the development of the SLR by adding a K chart framework to address the visual demands of complex literature reviews. [ABSTRACT FROM AUTHOR]
- Published
- 2021
42. Peg solitaire on graphs with large maximum degree.
- Author
-
Matsumoto, Naoki
- Subjects
CHARTS, diagrams, etc. ,GRAPH connectivity - Abstract
In 2011, Beeler and Hoilman introduced the peg solitaire on graphs. The peg solitaire on a connected graph is a one-player combinatorial game starting with exactly one hole in a vertex and pegs in all other vertices and removing all pegs but exactly one by a sequence of jumps; for a path x y z , if there are pegs in x and y and exists a hole in z , then x can jump over y into z , and after that, the peg in y is removed. A problem of interest in the game is to characterize solvable (respectively, freely solvable) graphs, where a graph is solvable (respectively, freely solvable) if for some (respectively, any) vertex s , starting with a hole s , a terminal state consisting of a single peg can be obtained from the starting state by a sequence of jumps. In this paper, we consider the peg solitaire on graphs with large maximum degree. In particular, we show the necessary and sufficient condition for a graph with large maximum degree to be solvable in terms of the number of pendant vertices adjacent to a vertex of maximum degree. It is a notable point that this paper deals with a question of Beeler and Walvoort whether a non-solvable condition of trees can be extended to other graphs. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
43. ON PATH-EQUIENERGETIC GRAPHS.
- Author
-
Narke, Amol P., Malavadkar, Prashant P., Shikare, Maruti M., and Gutman, Ivan
- Subjects
GRAPH theory ,GEOMETRIC vertices ,CHARTS, diagrams, etc. ,PERFECT graphs ,MATRICES (Mathematics) - Abstract
The path energy is a recently conceived variant of graph energy, equal to the sum of the absolute values of the eigenvalues of the path matrix [Shikare et. al, 2018]. Two graphs having equal path energy are said to be path-equienergetic. All trees of same order are mutually path-equienergetic. Members of a large class of connected regular graphs of same order and degree are mutually path-equienergetic. In this paper, we construct other types of path-equienergetic graphs and explore their spectral properties. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
44. Energy-Active Shadow Structures in Single-Family Buildings – Application Possibilities and Architectural Conditions.
- Author
-
Uherek-Bradecka, Barbara, Rozpondek, Maciej, and Kasprzyk, Grzegorz
- Subjects
ENVIRONMENTAL quality ,DWELLINGS ,PHOTOVOLTAIC power generation ,RENEWABLE energy industry ,CHARTS, diagrams, etc. - Abstract
Existing approaches to indoor environmental quality in single-family residential buildings have been described, identifying their optimal preferred parameters for maintaining a human-healthy environment. The energy requirements for maintaining basic building systems (lighting, cooking, heating, ventilation, cooling) have been analyzed. Passive and active sources of energy production have been analyzed, prosumer buildings have been considered, and methods of obtaining maximum energy in winter periods and avoiding overheating of the building in summer periods have been discussed. Process schemes of using active shadow structures as an integral element with other systems acquiring energy from RES in single-family residential buildings have been presented. Architectural aspects of the use of energy-active shadow structures in residential buildings (single – family houses) have been presented together with alternative solutions. This paper presents process diagrams of the use of energy-active shadow integrated with other renewable energy sources used in single-family buildings, such as: BIPV, PVT and heat pumps, benefiting indoor environmental quality. Architectural considerations for the use of energy-active shadow structures in single-family homes have been presented along with alternative solutions. The purpose of this paper is to present a concept (especially effective in the summer) for an additional way to harvest electricity from energy-active shadows in single-family houses. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
45. DEGREE SUM AND RESCTRICTED {P2,P5}-FACTOR IN GRAPHS.
- Author
-
Guowei DAI
- Subjects
ISOMORPHISM (Mathematics) ,GRAPHIC methods ,CHARTS, diagrams, etc. ,MATHEMATICS theorems ,EQUATIONS - Abstract
For a graph G, a spanning subgraph F of G is called a {P
2 ,P5 }-factor if every component of F is isomorphic to P2 or P5 , where Pi denotes the path of order i. A graph G is called a ({P2 ,P5 },k)-factor critical graph if G-V' contains a {P2 ,P5 }-factor for any V' ⊆V(G) with |V'| = k. A graph G is called a ({P2 ,P5 },m)- factor deleted graph if G-E' has a {P2 ,P5 }-factor for any E' ⊆ E(G) with |E'| = m. The degree sum of G is defined by σr +1(G) = ... min X⊆V(G) n S x'X dG (x): X is an independent set of r+1 vertices }. In this paper, using degree sum conditions, we demonstrate that (i) G is a ({P2 ,P5 },k)-factor critical graph if σr +1(G) > >(3n+4k-2)(r+1) 7 and ≥(G) = k+r; (ii) G is a ({P2 ,P5 },m)-factor deleted graph if σ2 +1(G) > (3n+2m-2)(r+1) 7 and ≥(G) = 5m 4 +r. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
46. Interdisciplinary research by the numbers.
- Author
-
Van Noorden, Richard
- Subjects
INTERDISCIPLINARY research ,CITATION analysis ,SCIENCE publishing ,CHARTS, diagrams, etc. - Abstract
The article presents several charts concerning interdisciplinary science research, including a chart measuring the level of interdisciplinarity various fields are, the percentage of interdisciplinary papers published in 10 nations, and a citation analysis of interdisciplinary research over time.
- Published
- 2015
- Full Text
- View/download PDF
47. Presence of Megastability and Infinitely Many Equilibria in a Periodically and Quasi-Periodically Excited Single-Link Manipulator.
- Author
-
Singh, Jay Prakash, Koley, Jit, Lochan, Kshetrimayum, and Roy, Binoy Krishna
- Subjects
BIFURCATION diagrams ,DYNAMICAL systems ,EQUILIBRIUM ,CHARTS, diagrams, etc. ,PHASE diagrams - Abstract
In the last two years, many chaotic or hyperchaotic systems with megastability have been reported in the literature. The reported systems with megastability are mostly developed from their dynamic equations without any reference to the physical systems. In this paper, the dynamics of a single-link manipulator is considered to observe the existence of interesting dynamical behaviors. When the considered dynamical system is excited with (a) periodically forced input or (b) quasi-periodically forced input, it indicates the existence of megastability. This paper reports megastability in a physical dynamical system with infinitely many equilibria. The considered system has other dynamical behaviors like chaotic, quasi-periodic and periodic. These behaviors are analyzed using Lyapunov spectrum, bifurcation diagram and phase plots. The simulation results reveal that the objectives of the paper are achieved successfully. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
48. An integration of uml use case diagram and activity diagram with Z language for formalization of library management system.
- Author
-
Muhamad, Zainab Hassan, Abdulmonim, Dhafer Abdulameer, and Alathari, Bashar
- Subjects
UNIFIED modeling language ,LIBRARY administration ,SOFTWARE requirements specifications ,LIBRARY cooperation ,MATHEMATICAL notation ,CHARTS, diagrams, etc. - Abstract
Unified Modeling Language (UML) is the effective standard for modeling object-oriented software systems. However, the ambiguity of semantics and the absence of consistency among UML diagrams lead to lack of precisely defining the requirements of a system. On the other hand, formal methods are techniques and tools use the mathematical notations, and they involve the precise syntax and semantics of the unambiguous software requirements specification. It applied in early stages of Software Development Life Cycle (SDLC). Therefore, an integrated between UML specification and formal specification is required to reduce the requirements' ambiguity and error, and to improve the quality and security of software systems. This paper proposes an approach involves the combining UML use-case diagram and activity diagrams with Z language for formalization of Library Management System (LMS). The focus of this paper is on consistency between the UML diagrams to Z Schema, and then verified by using the Z / EVEs tool. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
49. Constructing Fan Charts from the Ragged Edge of SPF Forecasts.
- Author
-
Clark, Todd E., Ganics, Gergely, and Mertens, Elmar
- Subjects
FORECASTING ,SURVEYS ,CHARTS, diagrams, etc. ,YIELD curve (Finance) ,ESTIMATES - Abstract
We develop models that take point forecasts from the Survey of Professional Forecasters (SPF) as inputs and produce estimates of survey-consistent term structures of expectations and uncertainty at arbitrary forecast horizons. Our models combine fixed-horizon and fixed-event forecasts, accommodating time-varying horizons and availability of survey data, as well as potential inefficiencies in survey forecasts. The estimated term structures of SPF-consistent expectations are comparable in quality to the published, widely used short-horizon forecasts. Our estimates of time-varying forecast uncertainty reflect historical variations in realized errors of SPF point forecasts, and generate fan charts with reliable coverage rates. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. The Econometric Society Annual Reports. Report of the Editors 2013-2014.
- Subjects
MANUSCRIPTS ,EDITORS ,CHARTS, diagrams, etc. - Abstract
Charts are presented including the number of submissions received, status of manuscripts, and distribution of papers among co-editors.
- Published
- 2015
- Full Text
- View/download PDF
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