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Integration of decade bandwidth baluns into the Eleven feed faces many challenges. The authors present a compact, low-loss and low-cost integration solution to the ultra-wideband balun feeding network for the dual-polarised Eleven feed in this study. The design procedures are described in detail. Evaluation of the balun integration based on the BOR1 (Body of Revolution type1) efficiency is introduced. Numerical simulations and measurements are presented for verifying the design.

In this paper, an efficient and straightforward numerical procedure is constructed to solve multi-dimensional linear and nonlinear elliptic partial differential equations (PDEs). Although the numerical procedure for the constraint-type fictitious time integration method overcomes the numerical stability problem, the parameter’s definition, numerical accuracy and computational efficiency have not been resolved, and the lack of initial guess values results in reduced computational efficiency. Therefore, the normalized two-point boundary value solution of the Lie-group shooting method is proposed and considered in the numerical procedure to avoid the problem of the initial guess value. Then, a space-time variable, including the minimal fictitious time step and convergence rate factor, is introduced to study the relationship between the initial guess value and convergence rate factor. Some benchmark numerical examples are tested. As the results show, this numerical procedure using the normalized boundary value solution can significantly converge within one step, and the numerical accuracy is better than that demonstrated in the previous literature.

The design of large and complex enterprise integration solutions is a difficult task. It can require solutions that are unique because of constraints from the current set of legacy applications. Design knowledge for enterprise integration solutions is, therefore, difficult to articulate and reuse. In particular, the nature and form of knowledge for conceptual design of integration solutions is difficult to pin down. In this paper, we investigate whether design knowledge for enterprise integration in the form of patterns can be reused to develop systems integration solutions, and whether such reuse leads to more effective design outcomes. The research follows design science guidelines in which we describe a research artifact, and evaluate it to assess whether it meets the intended goals. The results indicate that approaches to facilitate reuse of conceptual design knowledge are feasible in the domain of enterprise integration, and that such reuse does, in fact, lead to more effective design solutions.

This study aims to specify extent of impact of management performance and technological utilization on strength of accounting systems. Research approach employed is quantitative, with a poll method utilizing elaborative analysis approaches. Survey instruments were employed to gather information, interviews, and sustained by scholarly research. Accounting and finance departments of 98 Regional Apparatus Organizations served as study cohort, applying intentional sampling approach employed for subject selection. The analysis encompassed descriptive and verificative analyses, with data processed using SmartPLS 4.0 software. The findings indicate that management performance significantly influences strength of accounting systems, showing a direct correlation. Similarly, technology utilization significantly affects strength of accounting systems, also displaying a direct correlation. It is undeniable that financial reporting systems contribute to orderly conduct of organizational business processes by adhering to clear procedures aligned with applicable standards. This research holds implications for governmental organizations in Indonesia, emphasizing the importance of leveraging information technology and implementing financial reporting systems. This approach enables management personnel to deliver accurate and timely information, thereby enhancing the quality of financial reporting as a form of activity accountability.

It analyzes the necessity of the research of charging management in colleges and universities, proposes constructing a unified payment platform on campus, introduces the position and role of the unified payment platform in the university financial information construction, expounds business processes and function models of the new payment platform, and finally describes a common integration solution for business systems which provides important reference for the construction of unified payment platform in colleges and universities.

Problem decomposition requires the ability to recombine partial solutions. This recombination task, which we call integration, is a fundamental feature of many methods, both those based on mathematical formulations such as Dantzig–Wolfe or Benders and those based on heuristics. Integration may be implicit in mathematical decompositions, but in heuristics this critical task is usually managed by ad-hoc operators, e.g., operators that combine decisions and heuristic adjustments to manage incompatibilities. In this paper, we propose a general framework for integration, which is viewed as a problem in itself with well-defined objectives and constraints. Four different mechanisms are proposed, based on well-known concepts from the literature such as constraining or giving incentives to particular characteristics of partial solutions. We perform computational experiments on the multi-depot periodic vehicle routing problem to compare the various integration approaches. The strategy that places incentives on selected solution characteristics rather than imposing constraints seems to yield the best results in the context of a cooperative search for this problem.

The aim of this work is to model the growth of an economic system and, in particular, the evolution of capital accumulation over time, analysing the feasibility of a closed-form solution to the initial value problem that governs the capital-per-capita dynamics. The latter are related to the labour-force dynamics, which are assumed to follow a von Bertalanffy model, studied in the literature in its simplest form and for which the existence of an exact solution, in terms of hypergeometric functions, is known. Here, we consider an extended form of the von Bertalanffy equation, which we make dependent on two parameters, rather than the single-parameter model known in the literature, to better capture the features that a reliable economic growth model should possess. Furthermore, we allow one of the two parameters to vary over time, making it dependent on a periodic function to account for seasonality. We prove that the two-parameter model admits an exact solution, in terms of hypergeometric functions, when both parameters are constant. In the time-varying case, although it is not possible to obtain a closed-form solution, we are able to find two exact solutions that closely bound, from below and from above, the desired one, as well as its numerical approximation. The presented models are implemented in the Mathematica environment, where simulations, parameter sensitivity analyses and comparisons with the known single-parameter model are also performed, validating our findings.

This report provides some practical guidance on how utilities can define their own smart grid vision, identify priorities, and structure investment plans. While most of these strategic aspects apply to any area of the electricity grid, the document focuses on the segment of distribution. The guidance includes key building blocks that are needed to modernize the distribution grid and provides examples of grid modernization projects. Potential benefits that can be achieved (in monetary terms) for a given investment range are also discussed. The concept of the smart grid is relevant to any grid regardless of its stage of development. What varies are the magnitude and type of the incremental steps toward modernization that will be required to achieve a specific smart grid vision. Importantly, a utility that is at a relatively low level of grid modernization may leap frog one or more levels of modernization to achieve some of the benefits offered by the highest levels of grid modernization. Smart grids impact electric distribution systems significantly and sometimes more than any other part of the electric power grid. In developing countries, modernizing the distribution grid promises to benefit the operation of electric distribution utilities in many and various ways. These benefits include improved operational efficiency (reduced losses, lower energy consumption, amongst others), reduced peak demand, improved service reliability, and ability to accommodate distributed generating resources without adversely impacting overall power quality. Benefits of distribution grid modernization also include improved asset utilization (allowing operators to 'squeeze' more capacity out of existing assets) and workforce productivity improvement. These benefits can provide more than enough monetary gain for electric utility stakeholders in developing countries to offset the cost of grid modernization. Finally the report describes some funding and regulatory issues that may need to be taken into account when developing smart grid plans.

To remain competitive, organizations must operate efficiently and be flexible enough to rapidly respond to changing market conditions. To meet the first challenge, IT managers must continually seek ways to support more effective and accurate business processes. The second challenge implies a need for systems that the organization can easily extend to meet new demands. Enterprise application integration (EAI) is a key technology in meeting this mandate. But before implementing a data-integration solution in an enterprise, an organisation should be aware of the technical risks as well as the operations involved in the integration process. This article examines the data-integration subset of EAI. In EAI, data integration is the automated sharing of relevant data between two or more applications. This article aims to provide IT managers with an overview of EAI's fundamental technical issues and solutions.

In the present paper, two types of jet flow including free jet and wall jet are solved separately by strip integral method with three different methods of constant viscosity, Prandtl mixing length and free shear layer, then they are simulated in FLOW3D numerical model. The results of the strip integration method are compared to different turbulence models in FLOW3D. Finally, after selecting the best turbulence model, the results are compared to the presented empirical relationships. In general, it was observed that LES turbulence model yields better results in comparison with other turbulence models. The results also showed the superiority of the code written based on Prandtl mixing length method.