Tool For Design Of Systems Research Articles

Performance Analysis of AF Relaying With Selection Combining in Nakagami-$m$ Fading

This paper investigates the performance analysis of a selection combining scheme, which utilizes a variable gain amplify and forward relay over a Nakagami- $m$ fading channel. A selection combiner at a destination node chooses the better link between a relay channel and a direct channel. We derived exact closed-form expressions for moments of signal to noise ratio (SNR), ergodic capacity, and average symbol error probability. Simulation examples confirm that our exact formulas offer a more accurate analysis tool for selection combining than other prevailing approximations without extra complexity. The derived expressions serve as a useful tool for system design due to their validity for any SNR and arbitrary system parameters.

OMSD – An open membrane system design tool

A tool for design and performance analyses of filtration systems is presented. The tool evaluates the filtration rate and its associated power consumption of complex filtration systems, based on the system design, feed water characteristics, membrane characteristics and operating conditions. It is based on a modular concept, through which system elements, such as filtration modules or pumps, are assembled to build a virtual model of a filtration system. The system performance is based on its operating expenses, evaluated from the filtration rate, the filtrate solute concentration and the power consumption of the pumps and pre-treatment. The system analysis tool is applied to two case studies on the desalination of brackish water and brine. These studies compare various system configurations and operating conditions, based on their energy-efficiency. Based on the findings, general design principles are derived for brackish water and brine desalination. The tool presented here poses the first development stage in the development of an open, versatile and intuitive system design tool. Its open implementation allows for subsequent development contributions of the scientific community. The advantages over existing system tools are its transparency, its free extendibility, and the freedom to implement arbitrary filtration modules, without restrictions to commercial products.

PeTaL (Periodic Table of Life) and Physiomimetics

The Periodic Table of Life (PeTaL) is a system design tool and open source framework that uses artificial intelligence (AI) to aid in the systematic inquiry of nature for its application to human systems. This paper defines PeTaL’s architecture and workflow. Biomimicry, biophysics, biomimetics, bionics and numerous other terms refer to the use of biology and biological principles to inform practices in other disciplines. For the most part, the domain of inquiry in these fields has been confined to extant biological models with the proponents of biomimicry often citing the evolutionary success of extant organisms relative to extinct ones. An objective of this paper is to expand the domain of inquiry for human processes that seek to model those that are, were or could be found in nature with examples that relate to the field of aerospace and to spur development of tools that can work together to accelerate the use of artificial intelligence, topology optimization and conventional modeling in problem solving. Specifically, specialized fields such as paleomimesis, anthropomimesis and physioteleology are proposed in conjunction with artificial evolution. The overarching philosophy outlined here can be thought of as physiomimetics, a holistic and systematic way of learning from natural history. The backbone of PeTaL integrates an unstructured database with an ontological model consisting of function, morphology, environment, state of matter and ecosystem. Tools that support PeTaL include machine learning, natural language processing and computer vision. Applications of PeTaL include guiding human space exploration, understanding human and geological history, and discovering new or extinct life. Also discussed is the formation of V.I.N.E. (Virtual Interchange for Nature-inspired Exploration), a virtual collaborative aimed at generating data, research and applications centered on nature. Details of implementation will be presented in subsequent publications. Recommendations for future work are also presented.

Sistem Informasi Inventarisasi Sumberdaya Perikanan Kabupaten Maluku Tenggara Dengan Metode Rapid Application Development Berbasis Web

- Southeast Moluccas Regency is a districts in Moluccas Province that is rich in marine fisheries resources, especially pelagic fish, seaweed, and demersal fish. Knowledge of information fisheries resources by fishermen and the community in general in the regions is still low, because the unavailability of easy information media to access information about fisheries resources in this area. The research aims to design an information system of fisheries resources inventory to improve the performance of the Southeast Moluccas Regency Government to inform and process data on fisheries resources. System design method uses RAD (Rapid Application Development). System design tools use UML (Unified Modeling Language), to make applications using the PHP(Hypertext Preprocessor) programming language, and MySQL as the database. Information System for Fisheries Resources has been tested using the blackbox method, the results show the system runs as expected. This system can display information on Southeast Moluccas Regency Fisheries Resources informally to the public and can be used as a tool for local governments to improve performance for presentation and processing of data and information in the marine and fisheries sector. Keywords: Information Systems,Inventory, Fisheries, RAD, UML

Penerapan Metode Pewarnaan Graf Untuk Penjadwalan Mata Kuliah

Scheduling courses is a routine agenda every semester carried out by the study program, in the manufacturing process it often experiences difficulties such as frequent clashes between courses, lecturers and other times in one period of the lecture schedule. The graph coloring method used is a simple row coloring algorithm on the side. This algorithm can be used in scheduling so that there is no overlap between courses, lecturers, room and time. The system design tool used is a flowchart. The results of this study are in the form of applications that are made automatically without any conflicting schedules. Users can enter the initial scheduling data according to their needs, then the application will follow scheduling using a simple line coloring algorithm on the side, and the output results will display the scheduling results. testing using black box, this test will test in detail the plus button and process button, the expected result is a success

Computational fluid dynamics applied for the improvement of a flat-plate photobioreactor towards high-density microalgae cultures

The application of innovative strategies to develop cost-effective closed photobioreactors (PBRs) aiming high-density microalgae culture is the way to overcome the predominance of algae ponds against closed systems in the growing market of overall microalgae products. Hence, this paper focused on the development of a flat-plate PBR (FP-PBR) with improved fluid dynamics (FD), based on the system analysis theory, to achieve the maximum possible high-density culture (HDC). Therefore, 10-L FP-PBRs were built with and without internal bubble dispersers. The computational fluid dynamics (CFD) concept based on the Euler-Euler model was applied to study the FD of FP-PBRs through the software Comsol Multiphysics®. The system was considered as a 2D lateral cut of the three FP-PBRA – no disperser; FP-PBRB – simple disperser; and FP-PBRC – complex disperser. The simulations indicated that in PBRB and PBRC the flashing light effect was achieved. To prove the applied strategy, real photoautotrophic experiments with Poterioochromonas malhamensis were designed and performed. Comparison between FP-PBRA and FP-PBRC performance showed a drastic improvement in microalgae growth, up to 270% in biomass concentration. Finally, the application of the system analysis theory along with CFD stands out as a unique and powerful tool for system modelling, optimization and design.

Dual Channel TV and Fans Controllers Based on Android Smartphones

Abstract - This research will focus on the design of dual channel television control systems and fan speed control. The design of a dual channel TV controller system and fan speed control uses wireless media as a link between an Android smart phone, Raspberry Pi B +, TV, and fan. To design a dual channel TV controller system and control wind kipsa, it includes an Android smartphone, wi-fi module type TL-WN832N TP-Link and Raspberry pi B +. Android smartphones function as TV controllers and fans with applications installed on Android smartphones. The TP-Link TL-WN832N wi-fi module functions as a wireless multimedia link between the Raspberry Pi B + and Android smartphones. Raspberry pi B + functions like processing data sent by an Android smartphone to control the TV or fan. Thus, the system design tool can replace 2 controllers and TV fans in one device that can control the TV and fan using an Android smartphone
 Keyword : Android smartphone, TP-Link TL-WN832N Wi-Fi module, Raspberry Pi B +

Quantum optical neural networks

Physically motivated quantum algorithms for specific near-term quantum hardware will likely be the next frontier in quantum information science. Here, we show how many of the features of neural networks for machine learning can naturally be mapped into the quantum optical domain by introducing the quantum optical neural network (QONN). Through numerical simulation and analysis we train the QONN to perform a range of quantum information processing tasks, including newly developed protocols for quantum optical state compression, reinforcement learning, black-box quantum simulation, and one-way quantum repeaters. We consistently demonstrate that our system can generalize from only a small set of training data onto inputs for which it has not been trained. Our results indicate that QONNs are a powerful design tool for quantum optical systems and, leveraging advances in integrated quantum photonics, a promising architecture for next-generation quantum processors.

Modelling and co-simulation of a permanent magnet synchronous generator

PurposeThe purpose of this paper is to obtain an accurate methodology for modelling and analysis of the permanent magnet synchronous generator connected to power electronic components.Design/methodology/approachThis paper presents the methodology of the co-simulation of a permanent magnet synchronous generator. It combines Simulink, Maxwell and Simplorer software to demonstrate the electrical machine behaviour connected with the power electronics’ circuit. The finite element analysis performed on the designed machine exhibit a more accurate behaviour over simplified Simulink models. Results between both simulation and co-simulation are compared to measurements.FindingsThe co-simulation approach offers a more accurate depiction of the machine behaviour and its interaction with the non-linear circuits.Research limitations/implicationsThis paper focuses on the interior permanent magnet type of PMSG and its interaction with a passive rectifier (nonlinear circuit).Practical implicationsThe advanced capabilities of the co-simulation method allow to analyse more variations (geometry, materials, etc.), and its interaction with non-linear circuits, than previous simulation techniques.Originality/valueThe co-simulation as a tool for analysis and design of systems interconnected with unconventional and conventional electrical machines and prototypes, and the comparison of the obtained results with classical analysis and design methods, against measurements obtained from the prototype.

Semangka is an Islamic Study Information System Application as a Real-Time Information Sharing Media for Muslims

SEMANGKA meaning is Semangat Kajian. Frequent delays in the acceptance of religious studies information, make the lack of interest to follow. The ease of receiving religious studies information is one of the factors to arouse the interest of pilgrims to follow religious studies. one of which is by creating an application that can be designed with the support of Android operating system platform. On this occasion the author wants to develop an application that aims to share information about the study of Islamic religion. Because currently emerging activities of Islamic religious studies and almost every day in various places there is a study of Islam. This Islamic study was initiated by various associations or religious communities. With this application every community who want to hold Islamic religious studies activities can upload the information into this application so that in the end every person or congregation can see all the information in one study application. The application not only covers the study information but added with the sholat schedule, the Islamic community information, streaming video from the study and connecting one pilgrim with other pilgrims. The feature that is not less important is the existence of a map to facilitate the route to the place of study activity. In the design of this application using Method Business Canvas (BMC) and also used Unified Modeling Language (UML) as a system design tools created. And in designing using PHP programming language, Sublime text to edit PHP script, database server that used MySQL and website application 2 apk developer as application that convert web application to android based application.

Performance analysis of a reversible solid oxide cell system based on multi-scale hierarchical solid oxide cell modelling

The increasing penetration of intermittent renewable energy into power grids calls for energy storage means to balance the electricity production and consumption. The reversible solid oxide cell is a promising technology for distributed renewable energy storage. A system-level model is a useful tool for system design and efficiency optimization. In this study, a reversible solid oxide cell system model was developed in gPROMS ModelBuilder for distributed energy storage applications by integrating a multi-scale hierarchical three-dimensional solid oxide cell stack model with zero-dimensional balance of plant components models. The hierarchical rSOC stack model considers the electrochemical reactions at the electrodes, the one-dimensional + one-dimensional thermo-fluidic transport along the thickness and the flow direction at repeating unit level, and the three-dimensional heat transfer at stack level. The proposed system model enables the simultaneous investigations on both the total system performance and detailed stack temperature distributions. The roundtrip stack efficiency and roundtrip system efficiency reached 72.3% and 58.3% respectively at base case operation conditions. The effects of excess air ratio and fuel utilization on the system efficiency as well as the temperature uniformity of the reversible solid oxide cell stack were investigated. While increasing the excess air ratio decreases stack temperature gradients, it also decreases both the stack and system roundtrip efficiency. However, improved fuel utilization decreases stack temperature gradients without affecting the stack and system roundtrip efficiency.

Avionics Graphics Hardware Performance Prediction with Machine Learning

Within the strongly regulated avionic engineering field, conventional graphical desktop hardware and software application programming interface (API) cannot be used because they do not conform to the avionic certification standards. We observe the need for better avionic graphical hardware, but system engineers lack system design tools related to graphical hardware. The endorsement of an optimal hardware architecture by estimating the performance of a graphical software, when a stable rendering engine does not yet exist, represents a major challenge. As proven by previous hardware emulation tools, there is also a potential for development cost reduction, by enabling developers to have a first estimation of the performance of its graphical engine early in the development cycle. In this paper, we propose to replace expensive development platforms by predictive software running on a desktop computer. More precisely, we present a system design tool that helps predict the rendering performance of graphical hardware based on the OpenGL Safety Critical API. First, we create nonparametric models of the underlying hardware, with machine learning, by analyzing the instantaneous frames per second (FPS) of the rendering of a synthetic 3D scene and by drawing multiple times with various characteristics that are typically found in synthetic vision applications. The number of characteristic combinations used during this supervised training phase is a subset of all possible combinations, but performance predictions can be arbitrarily extrapolated. To validate our models, we render an industrial scene with characteristic combinations not used during the training phase and we compare the predictions to those real values. We find a median prediction error of less than 4 FPS.

Parametric optimization of an architectural object’s form as a method to improve its energy efficiency

Parametric optimization of an architectural object’s form is one of the design tasks, which architects and project designers face at the stage of structural concept development and design. Improving the performance qualities of a design solution, while providing its energy efficiency, is the purpose of system research in the sphere of architecture and urban planning. The article gives the comparison of calculated compactness ratios of the external envelope for one-, two- and three-, four-, five-, six-, seven-storey 6-apartment compact-form residential houses, comparable in the floor surface area criterion. The application of BEM software packages on the basis of BIM-modeling of buildings is reasonable to substantiate with the optimal functional (consumer) properties of an architectural object. Systematic methodology allows considering the architectural and design problems in the interdisciplinary way. Computer modeling of architectural objects should solve the optimization tasks on the basis of version design and contain an optimization module, which would allow taking the optimal decision at the specified design constraints (conditions) and normative parameters. Computer modeling of architectural objects with the use of structural optimization methods for the version design is a promising area, which requires the formalization of project procedures and developing automated design system tools for designing buildings of various purposes.

Penerapan UML Sebagai Alat Perancang Website Dinas Pertanian Kota Payakumbuh

The agricultural sector is one of the main income sectors of the Payakumbuh City community. Efforts made by the Payakumbuh City Agriculture Service are to market agricultural products produced by the Payakumbuh community. So far, product marketing and information on agriculture have been delivered directly from the heads of the sub-district, neighborhood, RW and Wali Nagari. This is considered to be less effective and efficient. Through the use of current technology, a website-based information system needs to be built by using Unified Modeling Language (UML) system design tools. With the existence of this website-based information system, it helps the Department of Agriculture to market agricultural products and information related to agriculture to the wider community.

PENERAPAN SISTEM PENDUKUNG KEPUTUSAN PENENTUAN ARAH MINAT SISWA PADA SMA N 14 PADANG BERBASIS WEB DENGAN METODE AHP

The problem that has occurred so far is that many students have difficulty in determining the direction of interest in the 14th high school in Padang. Since the 2013 curriculum was treated, this rule has been applied to the interests, talents, abilities and expectations with specialization chosen to be aligned and directly proportional, so that students' abilities can be improved. But the results are still not optimal. The principle is to run optimally and the problems that have occurred so far can be overcome. Then a system is needed to facilitate the BK teacher in determining the direction of interest of the student's majors by using the AHP method. So that the problems faced by the teacher can be overcome. In the AHP method all values are given the weight of each criterion such as report cards, UN scores and interest test scores for majors that are suitable for these students and the work of the BK teacher can also be helped. The results of the study from student data Givania Pembega name with a report card value of 0.1554, the average score of UN 0.0449 and the value of interest 0.0729 can be a total value of 0.2732 with interest majors classified in the Science Department With the existence of a decision support system for determining direction This student interest can be used as a tool in making decisions for students in determining the direction of their interests, and can also help BK teachers in determining the direction of their students' interests. In conducting this research, the research method uses the SDLC method and tools for system design using UML and programming languages using PHP and MySQL.Keywords: SPK, Specialization, Students, AHP, UML, Mysql

Analytical solution of a mass-spring system containing shape memory alloys: Effects of nonlinearity and hysteresis

Nonlinear dynamics of vibration systems containing NiTi shape memory alloy (SMA) bars has long been obscured by the lack of an analytical solution, like the analytical solution for duffing equation. The problem results from the nonlinear and hysteretic restoring force of the SMA bar. Here we use a piecewise linear hysteretic model to describe the force-displacement relation of the SMA bar and use the averaging method to solve the equation of motion. We thus obtain an approximate analytical solution of the steady-state response of an SMA mass-spring system. The analytical solution can describe both stable and unstable behaviors of the vibration system and therefore offer a comprehensive understanding of the nonlinear responses. It is shown that the phase transition induced softening nonlinearity bends the frequency response curve (FRC) to the left, while the subsequent rehardening of martensite further bends the FRC to the right, leading to multi-valued regions and jump phenomena. The hysteresis is found to have little influence on the bending but it can significantly suppress the response amplitude. Comparison of the analytical results with experimental data validates the piecewise linear hysteretic model and the analytical solutions. This work provides a theoretical tool for design and vibration control of SMA mass-spring systems.

A Multiobjective Optimization Design Tool for Traveling-Wave Tubes’ Electron Optics System

The nondominated sorting genetic algorithm II and the electron optics simulator were combined to form a multiobjective optimization design tool for electron optics systems of traveling-wave tubes. After determining the objective functions that vary with the macroscopic electrical parameters that need to optimize the electron optics system, the optimization tool is capable of obtaining the optimal solution set automatically. Then, the microscopic electron trajectories of the individuals in the optimal solution set are analyzed to get the final scheme. In the collector optimization, the maximum collector efficiency and the minimum back-streaming current are used as optimization goals. While for the demonstrated electron gun, the maximum waist position is set to be the optimization goal, together with constraints of emitting current and beam waist radius. After analyzing the energy density distribution on the collector inner surface or the laminar flow of the electron gun, the final scheme is determined from the optimal solution set.

Characterization of flameless combustion in a model gas turbine combustor using a novel post-processing tool

Flameless combustion is a very promising technology for the future gas turbines. It is clean and stable—without large oscillations, noise and flashback. To facilitate the adoption of this technology in gas turbines, advanced design tools are needed. In this paper, a recently developed unsupervised post-processing tool is used to analyze the large amount of high-dimensional data produced in a series of Large Eddy Simulations (LES) of a model gas turbine operating in flameless mode. Simulations are performed using Finite Rate Chemistry (FRC) combustion modeling and a detailed description of chemistry. The automatic post-processing reveals important features of the combustion process that are not easily recognizable by other methods, making it a complementary step for the already established FRC–LES approach, and a potential design tool for advanced combustion systems.

High-level modeling of communication-centric applications: Extensions to a system-level design and virtual prototyping tool

High performance streaming applications require hardware platforms featuring complex, multi-level interconnects. These applications often resemble a task-farm, where many identical tasks listen to the same input channel. Usual embedded system design tools are not well adapted to capture these applications. In particular, the non-uniform memory access (NUMA) nature of the platforms induces latencies that must be carefully examined. The paper proposes a multi-level modeling methodology and tools (TTool, SoCLib) that have been extended to model the characteristics of streaming applications (multiple tasks, non deterministic behavior, I/O devices) in UML/SysML, and to automatically generate a virtual prototype that can be simulated with high precision. The paper uses a typical streaming application to show how latencies can be estimated and fed back to diagrams.

SISTEM INFORMASI PENGOLAHAN DATA GAJI KARYAWAN PADA PT. BATIK DANARHADI BERBASIS MULTI USER

Abstract Along with the development of technology in this case increasingly rapid information technology, then motivated PT. Batik Danarhadi Surakarta to organize good management of the course of company activities, by applying computer applications. Due to this time the system used is still manual, especially in the financial section so in making reports on payroll reports in the financial section is very slow. On the other hand the leadership also had difficulty in checking and accessing the payroll report. So this study discusses issues in particular regarding the employee payroll system at PT. Batik Danarhadi Surakarta. The purpose of the preparation of this final project can be expected to produce systems and applications that can be used to assist the finance department in handling employee payroll issues, so as to produce up to date information, while also making it easier for leaders to conduct checks and audits. The new system that will be made at PT. Batik Danarhadi Surakarta is a computerized employee payroll system, where this new system of database models used in the employee payroll application program is Database Access (*. Mdb) and the programming language used is Microsoft Visual Basic 6.0. In making this system using system design tools, namely: Document Flow Chart, Data Flow Diagrams (DAD), Input-Output Design, Database Design, Technology Design, Database Table Relations. The employee payroll application model that will be made consists of several processes including process data input, employee data input, attendance and overtime transactions, employee loan transactions, employee payroll transactions, job data reports, employee data reports, attendance and overtime reports, reports employee loans and employee payroll reports. Keywords: Information system, Employee Payroll system, computerized