Graphical Evolution Research Articles

Caseload Prediction Using Graphical Evolutionary Game Theory and Time Series Analysis

Accurate caseload prediction is of considerable importance for the regulation and control of government agencies. Many studies on the environmental factor of caseload using time series analysis (TSA) are available. However, minimal attention has been provided to the interaction factor, which is substantially complex at the microlevel of social networks. A new model, graphical evolution game theory model (GEGT) is proposed in this paper to describe case formation based on the graphical evolutionary game theory. A parameter estimation method is developed on the basis of the GEGT model, and the estimated parameters are used for prediction. Furthermore, a fusion algorithm (GETS) that combines the predictions given by the proposed GEGT and TSA models is introduced to improve the caseload prediction accuracy. The fusion algorithm GETS highlights the accuracy of the GEGT model in the early stage of prediction. This algorithm integrates the precision of the TSA model in the later stage, thus balancing model strengths. The contribution of this paper lies in its proposed caseload prediction method based on the GEGT model to analyze the interaction factor and design a novel fusion algorithm GETS. The proposed model in this work is more accurate than the existing model on the actual dataset.

Evolutional photoluminescence property in ultraviolet-ozone-treated monolayer MoS2

Two-dimensional (2D) semiconductors offer significant advantages for electronic and optoelectronic devices. It is essential to develop the ability to dynamically manipulate and control their physical properties by simple ways for promoting practical applications. Herein, we demonstrate that a simple ultraviolet-ozone (UVO) treatment can bring dynamical properties and additional functions to monolayer MoS2, as revealed by the time-dependent photoluminescence (PL) behavior. The PL behavior can be flexibly tuned by UVO treatment time, laser irradiation power and storing time in the air, originating from the nonequilibrium adsorption/desorption process of O2 molecules on the surface of MoS2. Combined the analysis of material characterizations and theoretical calculations, UVO treatment causes high-density O2 molecules to physically bond with MoS2 and thus the direct-indirect bandgap transition, resulting in a strong PL quenching. This metastable O2 adsorption, which can be easily broken and artificially regulated, further enables an evolutionary, reversible and controllable PL behavior. Moreover, the PL of MoS2 covered by mask made of patterned 2D materials exhibits graphical evolution and emission switch behavior, offering new possibilities in information storage and security devices.

Study of non-commutative wormhole solutions in f(R,G) gravity

In this paper, we investigate some feasible regions for the existence of wormholes by introducing non-commutative geometry in terms of Gaussian and Lorentzian distributions in [Formula: see text] modified theory of gravity. We explore wormhole solutions by assuming a viable model [Formula: see text], where [Formula: see text] is assumed to be a linear function of Ricci scalar and [Formula: see text] is chosen to be a power law model. For [Formula: see text] model under discussion, we select suitable form of redshift and shape functions, which is necessary for the existence of wormholes. We discuss mainly two types of solutions corresponding to different values of free parameters and obtain numerical results. The stability condition for numerical solutions is discussed via TOV equations and it is proved that gravitational and hydrostatic forces show opposite behavior to anisotropic force and hence cancel each other’s effect, which provides a stable wormhole configuration. By using graphical evolution, it has been found that null energy conditions (NEC) are violated for non-commutative Gaussian and Lorentzian distributions. However, some feasible regions have been found for the existence of wormhole solutions with Gaussian and Lorentzian distributions in the context of [Formula: see text] gravity.

Paleografía aragonesa de la Alta Edad Media anterior al año 1137

L'héritage paléographique d'Aragon, pendant le haut Moyen Age et jusqu’à son union avec le Comté de Barcelone en 1137, est très interessant pour le paléographe qui y trouve un champ d'observation sur la persistance particulière de la tradition culturelle wisigothe, qui s'est maintenue longtemps, jusqu’à l'apparition des graphies carolines. De là vient l'inrérêt des exemples conservés dans les manuscrits anciens et les documents. Le Règne d’Aragon primitif, ensemble de terres indépendantes, sont réunies par un roi qui les intègre successivement. C'est un terrain intéressant pour étudier la lente évolution des graphies wisigothes depuis le VIIIeme, jusqu'au XIIeme siècle, moment où apparaissent les mauvaises habitudes de l'écriture caroline. Dans cet article, on passe en revue d’inreressants exemples d'écritures, conservés dans des manuscrits anciens et des documents qui illustrent cette lente évolution graphique, ainsi que des enluminures qui mèlent l'art local mozarabe a l'implantation graduelle de motifs carolingiens européens.

Existence of static wormhole solutions in f ( R , G ) $f(R,G)$ gravity

This work investigates some feasible regions for the existence of traversable wormhole geometries in $f(R,G)$ gravity, where $R$ and $G$ represent the Ricci scalar and the Gauss-Bonnet invariant respectively. Three different matter contents anisotropic fluid, isotropic fluid and barotropic fluid have been considered for the analysis. Moreover, we split $f(R,G)$ gravity model into Strobinsky like $f(R)$ model and a power law $f(G)$ model to explore wormhole geometries. We select red-shift and shape functions which are suitable for the existence of wormhole solutions for the chosen $f(R,G)$ gravity model. It has been analyzed with the graphical evolution that the null energy and weak energy conditions for the effective energy-momentum tensor are usually violated for the ordinary matter content. However, some small feasible regions for the existence of wormhole solutions have been found where the energy conditions are not violated. The overall analysis confirms the existence of the wormhole geometries in $f(R,G)$ gravity under some reasonable circumstances.

Simulating R&D decision for critical subsystems in defence R&D projects

PurposeThe purpose of this paper is to study the effect of a critical subsystem development indigenously on the outcome of an Indian defence R&D project. Indigenous development of the critical subsystem requires the development of a number of technologies; hence the study is taken up for indigenously development of critical subsystem.Design/methodology/approachA simulation-based approach is used in this paper for studying the effect of indigenization decisions. A defence R&D project with the critical subsystems is modeled in Graphical Evolution and Review Technique (GERT) networks, and simulated in Arena simulation software using discrete event simulation model. The simulation model is thereafter experimented with decision options for the critical subsystem. Data were collected from the project management office (PMO) of short range homing guided missile (SRHGM) for this simulation study.FindingsIt has been found in this case that timely development of technology plays a key role in the Indian defence R&D projects. While indigenization of critical components reduces cost of development, the trade-off lies in much increased project development time. It is imperative that project teams should identify critical components early and work out appropriate strategies of indigenous development to avoid time overrun of the projects.Research limitations/implicationsThe accuracy of results of the study could perhaps be affected on account of the extent of data forthcoming from the PMO. However, GERT framework presented in this paper is realistically derived from the practices used in the SRHGM project.Originality/valueThe study would help the project teams to identify critical subsystems early and work out appropriate strategies of indigenous development to avoid time overrun of the projects. This study would also make the project as well as the R&D teams aware of the causes for delays and cost overruns, and assist to deliver a product meeting end-user requirements.

80,000 h operational experience and performance analysis of a brackish water reverse osmosis desalination plant. Assessment of membrane replacement cost

The brackish water reverse osmosis (BWRO) desalination plant has operated successfully for around 80,000h from 2004. Reverse osmosis membrane technology has improved allowing higher salt rejection, permeate water productivity and durability. But when the membranes should be replaced taking into account the energy consumption increase. The aim of this paper is to assess the operating information available and energy consumption to evaluate when it would be appropriate to replace the membranes taking especially into account the long life elements involved. The graphical evolution of feedwater conductivity, permeate conductivity, feed pressure, pressure drop, specific energy consumption (SEC) and the standardization of the permeate flow, salt rejection and SEC are shown. A comparison between specific energy consumption increase due to membrane performance decay, the regularity of chemical cleaning and membrane replacement in terms of costs has been carried out. The results show that the most effective choice for this BWRO desalination plant is not to replace the membranes in the first ten years of operation taking into account the membranes performance and the cost of electricity at the time.

The Origin of Square Notation

In this article the evolution of two French notations is presented: North-French and Aquitaine notations. On the basis of selected sources in a chronological order investigation of selected neumatic elements of these notations was conducted and at the final stage conclusions how evolved of the particular neumes was drawn. The evolutionary process of the musical scripture proved to be more distinct in the northern French notation. Step after step, the formation of the classic shapes of the square notation, can be observed with the characteristic junctures of elements (ligature). In the case of Aquitaine notation, one can speak only in a very limited manner of the graphical form evolution, because the important elements of this notation were modified only slightly in the course of tree hundred years. Thereby it is proven that the contemporary choral notation stems from the northern French form.

Evaluation of the first nine years operating data of a RO brackish water desalination plant in Las Palmas, Canary Islands, Spain

The RO brackish water desalination plant described in this paper has been operating from June 2004 without using acid in the pretreatment and only using antiscalants during 75.000 h with the same RO elements. The present research describes the graphical evolution of the operating information of the first nine years. A study of the normalization and standardization of the information about the nine years of evolution of the plant for fixed feedwater conditions, operating pressure, and system recovery are also shown, so that the performance evaluation of the plant can be indicated correctly. From these results it has been deduced the compaction and fouling factor values, and the average ionic permeability coefficients of the RO membrane utilized. Likewise, this paper describes the graphic evolution of the brine Langelier saturation index and Stiff and Davis stability index (actual and theoric values). The conclusions of this study and the operating experience are intended to get a practical and optimum design of RO brackish water desalination plants without using acid in the pretreatment and having a reasonable operating life between 9 and 10 years.

Evaluation of the first seven years operating data of a RO brackish water desalination plant in Las Palmas, Canary Islands, Spain

The present research describes the graphical evolution of the operating information of the first seven years. A study of the normalization and standardization of the information about the seven years of evolution of the plant for fixed feedwater conditions, operating pressure, and system recovery are also shown, so that the performance evaluation of the plan can be indicated correctly. From these results, it has been deduced that the compaction and fouling factor values and the average ionic permeability coefficients of the reverse osmosis (RO) membrane were utilized. Likewise, this paper describes the graphic evolution of the brine Langelier saturation index and Stiff and Davis stability index (actual and theoric values). The conclusions of this work and the operating experience are intended to get a practical and optimum design of RO brackish water desalination plants without using acid in the pretreatment and having a reasonable operating life between 7 and 8 years.

Evaluation of the five years operating data of a RO brackish water desalination plant in Las Palmas, Canary Islands, Spain: a historic case

The reverse osmosis (RO) brackish water desalination plant described in this article has been operating without acid in the pretreatment and only using two types of antiscalants (this was the first experience of 40,000 operating hours in Canaries). This work describes the graphical evolution of all the daily operating information of the first five years. A study of the normalization and standardization of the information about the five years of the evolution of the plant for fixed feedwater conditions, operating pressure, and system recovery is shown too, so that the performance evaluation of the plant can be indicated correctly. Likewise, this article describes the graphic evolution of thse brine Langelier saturation index (real and theoric values). The conclusions of this study and the operating experience are intended to get a practical and optimum design method of RO brackish water desalination plants.

From Exclusive Xia to Inclusive Zhu-Xia: The Conceptualisation of Chinese Identity in Early China

This paper involves an syncretic study of the structural characteristics, semantic stratification, graphical evolution and contextual analysis on a chronological base of the perplexing graphs and words which designate the Chinese, such as xia, hua and zhongguo, non-Chinese, such as yi, di, rong, and man, in early palaeographic and documentary sources. It shows how these terms evolved to distinguish between the two distinct ethnographical concepts in the early mind.The study shows that the conception of Hua-Xia and Zhongguo carried different connotations in the Western Zhou period from that defined in Spring and Autumn philological sources. The relocation of the Zhou capital to the east during the transition from Western to Eastern Zhou had generically diffused the concept of Xia and the elegant Ya culture. The conception of Xia and Yi, which had formerly distinguished between the Zhou elites and the non-Zhou people, came to distinguish between the central states and peripheral groups in the geographical sense, as well as between the Zhou subjects and the non-Zhou subjects in the political sense. Thus the conceptualisation of the so-called “Chinese-ness” postdates the actual formation of the ethnographical bulk of the Chinese people.

Graphical evolution of the arnold web: from order to chaos

We represent graphically the evolution of the set of resonances of a quasi-integrable dynamical system, the so-called Arnold web, whose structure is crucial for the stability properties of the system. The basis of our representation is the use of an original numerical method, whose definition is directly related to the dynamics of orbits, and the careful choice of a model system. We also show the transition from the Nekhoroshev stability regime to the Chirikov diffusive one, which is a generic nontrivial phenomenon occurring in many physical processes, such as slow chaotic transport in the asteroid belt and beam-beam interaction.

<em>Graphist</em>: Logiciel de lemmatisation, indexation et modernisation automatique de textes anciens

Graphist is a microcomputer program for lemmatizing, indexing and modernizing documents written in Renaissance, Classical or Modern French. It is intended for academics, researchers, students, teachers and publishers, giving them a unified environment for the processing of this type of language, whose variant spellings have traditionally caused problems of interpretation. It should also be of great value to all who manage or use bases of French textual data from this period.The program, developed and tested at the CNRS French orthography research centre (HESO), integrates a number of 'expert' modules. It uses a reference dictionary, DAC, containing the 18,000 words of the first edition of the Dictionnaire de l'Académie française (1694) and their graphical evolution up to the present. Its main features are: ¤ automatic lemmatization: morphological analysis and identification of forms; partial disambiguation through immediate context analysis; automatic analysis of archaic spellings; grouping by lemma; fully user-driven; ¤ consultation of lemmatized index: frequency, spelling, type and part-of-speech filters; descriptive word 'index cards'; variety of formats for saving and exporting; ¤ indexing: textual structuring by sections and sentences; context display for form or lemma; automatic concordancing; ¤ modernization of texts with automatic count of modernized forms; ¤ consultation of DAC historical dictionary: by form or lemma; expansion of the dictionary or creation of personal dictionaries; use with another reference dictionary.

Marching out the parabolic equation model: A graphical approach

The parabolic equation (PE) acoustic model uses a Fourier spectral method of solving a second-order differential equation. The solution is ‘‘evolved’’ by solving a series of fast Fourier transforms whereby the source is convolved with the environment of the propagating energy. Each convolution marks a step of the march until the solution is marched out to the final range. This evolution has been described mathematically many times in previous published papers [Hardin and Tappert, SIAM Rev. 15, 423 (1973), Thomson and Chapman, J. Acoust. Soc. Am. 74, 1848–1854 (1983)]. A graphical evolution of the convolution of the source with the environment is important in providing a fresh perpective and further insight into the refinement and the understanding of the source function and the sensitivity to the reference sound speed. In addition, the observation of the geometry as it marches the propagation forward in wave space is an important graphic tool for understanding the analytical description of the Tappert split step PE approach.

Graphic evolution of the 24.000 hours (3 years) operating data of a RO brackish water desalination plant, in Las Palmas, Canary Islands, Spain

This article constitutes one part of the Doctorate Thesis that the author is doing at the Industrial Engineering Superior Technical School of Las Palmas. The capacity of this RO brackish water desalting plant is 370 m3/day and since January 1986 it has been operating with a LSI in the brine of about 2.2 without using acid in the pretreatment and only using the Flocon. 100 antiscalant (this is the first experience of 24.000 hours of operation in the Canaries). The RO system is equipped with Filmtec BW30-8040 RO elements. In this document the graphical evolution of all the daily operation information, pressures, rejections, cycles and cleaning products used, etc… are shown. It is intended to be used in the future as another practical support for the design of RO brackish water desalination plants.

古代南アラビア史のクロノロジーに関する一考察

This article discusses the chronology of the ancient South Arabian inscriptions during the first four centuries A. D., according to their palaeography.In the first place, scrutinizing palaeographically the inscriptions whose period and provenance are certain, the author tries to show the following things.(1) As J. Ryckmans suggested, the graphical differences don't always signify the differences of period, but can correspond with the differences of provenance. For example, in the inscriptions found in Himyar, we already find at the end of the 2nd century, evolved forms of “b”, “w”, “f”, which appear for the first time in the latter half of the 4th century in Saba.(2) In Saba, “t” appears in the shape of italic “x” instead of roman “x” from ca. 100 to the end of the 3rd century.(3) We should rather compare the graphical evolution of Hadrami inscriptions with that of Himyar than that of Saba.In the next place, scrutinizing palaeographically some inscriptions containing the kings' names not yet identified, the author tries to arrange them chronologically.Hamilton 8… in the latter half of the 1st cent.?RES 4708… at the beginning of the 2nd cent.Ingrams 1; RES 3910, 4196, 4912, 4938; Ja 648, 651; CIH 407… at the beginning of the 3rd cent.RES 4913, 4914, 4915… in the 1st half of the 3rd cent.RES 4909, 4910… in the middle of the 3rd cent.RES 4698 (?), Ry 591… in the latter half of the 3rd cent.RES 4230, Ja 652… at the end of the 3rd cent.CIH 430, 569… at the beginning of the 4th cent.RES 3960… in the 1st half of the 4th cent.