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Hardware-software co-design of embedded systems
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| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Proceedings of the IEEE |
| Volume / Edisi | : | 82-7, JULY (No. 7) |
| Halaman | : | 967-989 |
| Abstrak | : | This paper surveys the design of embedded computer systems, which use software running on programmable computers to implement system functions. Creating an embedded computer system which meets its performance, cost, and design time goals is a hardware-software co-design problem-the design of the hardware and software components influence each other. This paper emphasizes a historical approach to show the relationships between well-understood design problems and the as-yet unsolved problems in co-design. We describe the relationship between hardware and software architecture in the early stages of embedded system design. We describe analysis techniques for hardware and software relevant to the architectural choices required for hardware-software co-design. We also describe design and synthesis techniques for co-design and related problems. |
Surat Ignatius Cerminan Hidupku
| Pengarang | : | Susanne |
| Nama Majalah/Jurnal | : | Rohani |
| Volume / Edisi | : | 72 (No. 07) |
| Halaman | : | 40-44 |
| Abstrak | : | Artikel ini berisi surat yang ditujukan untuk Lise, sahabat kecil soya. Lise berasal dari Medan, karena akrab maka soling menyebut gue untuk penulis. don lu untuk kamu. Lise menjadi tempat soya unfuk bercerita tentang banyak hal, sehingga bagi soya, paling mudoh menulis soot bercerita kepodanya. Refleksi atas pengalaman membaca Surat St. Ignatius dibingkai dalam bentuk surat personal untuk Lise. |
Mengendalikan Emosi dalam Hidup Religius
| Pengarang | : | Paul Suparno, SJ |
| Nama Majalah/Jurnal | : | Rohani |
| Volume / Edisi | : | 72 (No. 07) |
| Halaman | : | 34-39 |
| Abstrak | : | Sebagai manusia, para religius memiliki emos1. Hal ini merupakan sesuatu yang wajar don manusiawi. Masalah mulai muncul ketika emosi tidak dikelola dengan baik. Emosi yang tidak terotur don tidak terkendali memiliki dampak buruk bagi hidup komunitas don pelayanon. Dengon belajar dari Tuhan Yesus, para religius diharapkan dapat mengolah emosi mereka don memanfaatkannya demi hidup komunitas yang sehat don pelayonan yang membawa berkat. |
Expert system, fuzzy logic, and neural network applications in power electronics and motion control
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Proceedings of the IEEE |
| Volume / Edisi | : | 82-8, AUGUST (No. 8) |
| Halaman | : | 1303-1323 |
| Abstrak | : | Artificial intelligence (AI) tools, such as expert systems, fuzzy logic, and neural networks are expected to usher a new era in power electronics and motion control in the coming decades. Although these technologies have advanced significantly and have found wide applications, they have hardly touched the power electronics and machine drives area. The paper describes these AI tools and their application in the area of power electronics and motion control. The body of the paper is subdivided into three sections which describe, respectively, the principles and applications of expert systems, fuzzy logic, and neural networks. The theoretical portion of each topic is of direct relevance to the application of power electronics. The example applications in the paper are taken from the published literature. |
Simulation of power electronic and motion control systems-an overview
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Proceedings of the IEEE |
| Volume / Edisi | : | 82-8, AUGUST (No. 8) |
| Halaman | : | 1287-1302 |
| Abstrak | : | This paper presents a users' perspective of simulation in power electronic and motion control systems. The rationale for simulation in research, education and in the design process, and the details of how simulation is carried out are discussed. Characteristics of a reliable simulation program are outlined and the hierarchical approach to simulation is stressed. Numerical solution issues in the simulation of "stiff" systems such as power electronics and motion control are discussed in general terms. A brief overview of the widely used simulation programs is provided along with the challenges in modeling the semiconductor devices. In conclusion, observations are made with respect to the future role and nature of computer simulations. |
Doa Hamba Abraham
| Pengarang | : | Albertus Purnomo, OFM |
| Nama Majalah/Jurnal | : | Rohani |
| Volume / Edisi | : | 72 (No. 07) |
| Halaman | : | 29-33 |
| Abstrak | : | Kisah Abraham mencatat sebuoh doo yang dipanjatkan oleh hambanyo (Kej. 24: 12-14). Meskipun pendek. doo ini cukup terkenal don kerap menjadi salah satu rujukan bagaimona orang seharusnya berdoa. Hamba Abraham memanjatkon doa ketika dia sedang mengalami soot­soot kritis dalam menjalankon tugos dari Abraham don sangat membutuhkan pencerahan don bimbingan ilahi. Seperti apo doa hamba Abraham ini? Apa yang dapat dipelajari dari kisah hamba Abraham, khususnya doa yang dipanjatkan kepada Allah |
High-power industrial drives
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Proceedings of the IEEE |
| Volume / Edisi | : | 82-8, AUGUST (No. 8) |
| Halaman | : | 1266-1286 |
| Abstrak | : | After the classification and a short review of the evolution, the different drive systems which became important in industrial applications are described. It is shown how motor, converter, and controls form a drive system. The specific characteristics of each system are emphasized in order to show which system is best suited for which kind of applications. Based on the development potential the paper also gives a projection for the future. The systems discussed include synchronous motors fed by externally commutated current source converters, induction motors fed by current source converters, cycloconverter fed synchronous motors, voltage source inverters, and slip power controlled drives. |
Ketaatan Resiprokal: Tulus dan Diskretif
| Pengarang | : | DR. Emon Winardi Danudirgo, SP.PD. |
| Nama Majalah/Jurnal | : | Rohani |
| Volume / Edisi | : | 72 (No. 07) |
| Halaman | : | 25-28 |
| Abstrak | : | Ignatius, tanggal 26 Maret 1553, menulis surat panjang kepada para anggota Serikat Yesus di komunitas Portugal. Surat ini menanggapi cara don gaya memimpin Simao Rodrigues yang dinilai terlalu bebas don tidak seloras dengan nilai keutamaan kerohanian yang dibangun oleh Serikat sehingga pada pergantian kepemimpinannya juga menyebabkan perpecahan di antara anggoio karena ado yang masih lebih toot kepadanya daripada kepada pemimpin yang baru. |
Estimation, identification, and sensorless control in motion control system
| Pengarang | : | K. Ohnishi |
| Nama Majalah/Jurnal | : | Proceedings of the IEEE |
| Volume / Edisi | : | 82-8, AUGUST (No. 8) |
| Halaman | : | 1253-1265 |
| Abstrak | : | The paper presents the state of the art of motion systems particularly emphasizing both estimation and identification of parameters and control variables of an electric-motor-driven motion system. In a modern electrical drive system, it is required to take not only the electrical aspect but also the mechanical phase into total system consideration. Improvement in electrical aspect needs a variety of information pertaining to electrical machines and power electronic circuits for improving AC variable-speed drives. Important techniques of identification or estimation of parameters and control variables in AC drives are explained. Such information includes machine parameters, flux, speed, position, and so on. Also, the paper shows that there is some theoretical limit of performance. For improvement of the mechanical phase, the disturbance torque is the most important variable to be identified. It is used in motion control systems, for example, in the feedback loop. Various applications are possible by modification of such a basic approach. As a conclusion, the paper shows that the total robustness is attained by integrating advances of control technique on the electrical aspect and the mechanical aspect. There are numerous variations of controller by possible combinations of these two aspects according to applications. |
Motion control with permanent-magnet AC machines
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Proceedings of the IEEE |
| Volume / Edisi | : | 82-8, AUGUST (No. 8) |
| Halaman | : | 1241-1252 |
| Abstrak | : | Motion control techniques have been developed to exploit the high efficiency and extremely fast dynamic response capabilities of permanent-magnet AC (PMAC) machines. Control techniques are reviewed separately for the two major classes of PMAC machines referred to as trapezoidal (i.e., brushless DC) and sinusoidal machines. While trapezoidal PMAC machine drives are distinguished by their controls simplicity and minimal sensor requirements, sinusoidal PMAC machine drives offer opportunities for extremely smooth torque production and extended high-speed operating ranges. Advanced PMAC machine control topics including sensor elimination techniques and robust servocontrol algorithms are reviewed, concluding with a discussion of PMAC machine drive application trends. |