PERENCANAAN DAN PENGEMBANGAN SISTEM INFORMASI SEKTOR PUBLIK BERBASIS KOMPUTER

Accounting information systems provide information for both internal and external users. Public sectors adopted internal control procedures in accounting systems to ensure accurate and reliabilty of financial report. One of internal. control components is information that is tools for decision making. Nowadays, information technology facilitates internal control procedures. Both information and information technology support sector public activities more easily, more reliable and more accurate. This article provides explanation about how to use information system in public sector with information technology support. Furthermore, the explanation will be focused on planning and developing information ' systems in public sector based on computer system

The Internal Model Principle for Systems with Unbounded Control and Observation

In this paper the theory of robust output regulation of distributed parameter systems with infinite-dimensional exosystems is extended for plants with unbounded control and observation. As the main result, we present the internal model principle for linear infinite-dimensional systems with unbounded input and output operators. We do this for two different definitions of an internal model found in the literature, namely, the p-copy internal model and the $\mathcal{G}$-conditions. We also introduce a new way of defining an internal model for infinite-dimensional systems. The theoretic results are illustrated with an example where we consider robust output tracking for a one-dimensional heat equation with boundary control and pointwise measurements.Comment: 38 pages, 2 figures, in revie

Optimal control of nonlinear partially-unknown systems with unsymmetrical input constraints and its applications to the optimal UAV circumnavigation problem

Aimed at solving the optimal control problem for nonlinear systems with unsymmetrical input constraints, we present an online adaptive approach for partially unknown control systems/dynamics. The designed algorithm converges online to the optimal control solution without the knowledge of the internal system dynamics. The optimality of the obtained control policy and the stability for the closed-loop dynamic optimality are proved theoretically. The proposed method greatly relaxes the assumption on the form of the internal dynamics and input constraints in previous works. Besides, the control design framework proposed in this paper offers a new approach to solve the optimal circumnavigation problem involving a moving target for a fixed-wing unmanned aerial vehicle (UAV). The control performance of our method is compared with that of the existing circumnavigation control law in a numerical simulation and the simulation results validate the effectiveness of our algorithm

EVALUASI TERHADAP SISTEM PENGENDALIAN INTERN UNTUK PEMBERIAN KREDIT DAN PENERIMAAN ANGSURAN PADA PRIMER KOPERASI PEGAWAI REPUBLIK INDONESIA (PRIMKOPRI) “SEJAHTERA” KOTA BLITAR

This research is a case study on PRIMKOPRI "Prosperous" City of Blitar with the title for Evaluation of Internal Control System For Granting Credit and Installment Receipts in PRIMKOPRI "Prosperous" City of Blitar. The purpose of this study was to evaluate the system of credit and installment receipts in PRIMKOPRI "Prosperous" City of Blitar and to evaluate the internal control system for the provision of credit and installment receipts in PRIMKOPRI "Prosperous" Blitar City to conform with the objectives of internal control. In this case the internal control system, the goals are to maintain the security of company property, check the accuracy and correctness of accounting data, increase the efficiency in operations and to encourage compliance with management policies are defined, using the elements of internal control systems which include: Structure organization where there is proper separation of responsibilities, systems and procedures are satisfactory, a healthy practice to do in carrying out the duties and functions of each part of the organization and employees that quality is balanced with responsibility. To determine whether effective internal control system for the provision of credit and installment receipts, then the researcher will describe, among others: the systems and procedures must be able to separate the operational functions of recording companies and credit activities so that no one who was given the responsibility bagianpun more than one to perform all phases of a transaction. The division of functional responsibilities and authority systems and established procedures will not be performing well if not realized with healthy practices in implementation. By streamline and implement systems of internal control over credit and installment receipts, then the company will be able to achieve the objectives of the internal control system as expected and in addition to business development will also help to foster the benefits based on the principles of business management through sound management. Based on the above conclusions, the researchers implication that PRIMKOPRI "Prosperous" Blitar City entered into perfecting internal control system that has existed throughout these things can be don

Quantum Internal Model Principle: Decoherence Control

In this article, we study the problem of designing a Decoherence Control for quantum systems with the help of a scalable ancillary quantum control and techniques from geometric control theory, in order to successfully and completely decouple an open quantum system from its environment. We re-formulate the problem of decoherence control as a disturbance rejection scheme which also leads us to the idea of Internal Model Principle for quantum control systems which is first of its kind in the literature. It is shown that decoupling a quantum disturbance from an open quantum system, is possible only with the help of a quantum controller which takes into account the model of the environmental interaction. This is demonstrated for a simple 2-qubit system wherein the effects of decoherence are completely eliminated. The theory provides conditions to be imposed on the controller to ensure perfect decoupling. Hence the problem of decoherence control naturally gives rise to the quantum internal model principle which relates the disturbance rejecting control to the model of the environmental interaction. Classical internal model principle and disturbance decoupling focus on different aspects viz. perfect output tracking and complete decoupling of output from external disturbances respectively. However for quantum systems, the two problems come together and merge in order to produce an effective platform for decoherence control. In this article we introduce a seminal connection between disturbance decoupling and the corresponding analog for internal model principle for quantum systems.Comment: Submitted to IEEE Transactions on Automatic Control, Mar 15 2010. A basic introduction appeared in 46th IEEE CDC 2007. Acknowledgements: The authors would like to thank the Center for Quantum Information Science and Technology at Tsinghua University, R.-B. Wu, J. Zhang, J.-W. Wu, M. Jiang, C.-W. Li and G.-L. Long for their valuable comments and suggestion