Internal Telecommunications Control

Arkitektfirman Kolman X Boye Architects har fått uppdraget att upprätta bygglovshandlingar för ett äldreboende. Det är ännu ej bestämt i detalj hur byggnaden skall uppföras men beställaren önskar att byggnaden uppförs i träbyggnadsteknik. Äldreboendet projekteras för 54 stycken lägenheter fördelat på sex stycken våningsplan och en total bruttoarea på strax under 6000m2. Ingen lika hög träbyggnad med denna verksamhetsklass avseende brand har tidigare uppförts i Sverige. Vår uppgift och utmaning i detta arbete har varit att reda ut problematiken kring projekteringen av exteriöra detaljer för höga hus i trä. Utifrån kända problem avseende brand, akustik och fukt har sedan ett antal detaljer som påverkar det estetiska uttrycket projekterats. Detaljlösningarna för bland annat terrassbjälklag, fasadsystem och balkonger har projekterats. Målsättningen var att tillåta trä att synas i arkitekturen så långt detta har varit möjligt med hänsyn till gällande krav och föreskrifter. Våra projekterade förslag till detaljlösningar visar på möjligheten att låta trä vara en synlig del i arkitekturen även för en byggnad av denna volym och brandteknisk verksamhetsklass. Vårt arbete visar också hur kända problem med brand, akustik samt fukt i samband med träbyggnadsteknik kan undvikas. Våra förslag på detaljer kan ligga till grund för vidare projektering och upprättande av bygghandlingar för detta äldreboende i Norsborg.Architect firm Kolman X Boye Architects has been commissioned to execute permit documents for a senior housing. It has not yet been determined in detail how the building will be built, but client wants the building to be constructed in timber engineering . The senior housing is projected to accommodate 54 apartments spread over six floors and a total floor space of just under 6000m2. No equally high wooden building with this fire classification has previously been constructed in Sweden. Our task and challenge of this work has been to explain the known problems with exterior design of details in tall timber buildings. Based on the known issues regarding fire safety, acoustics and moisture have a number of details that affect the aesthetic expression been projected. Detailed solutions including terrace floor, facade systems and balconies have been projected. The goal was to allow wood to be seen in the architecture as far as this has been possible with regard to local rules and regulations. Our projected draft detailed solutions demonstrate the ability for wood to be a visible part of the architecture even for a building of this volume and fire activity class. Our work also shows how the known problems with fire, acoustic and moisture associated with wood construction can be avoided. Our proposals in detail solutions can form the basis for further planning and preparation of construction documents for this senior housing in Norsborg

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

Realizability and Internal Model Control on Networks

It is proved that network realizability of controllers can be enforced without conservatism using convex constraints on the closed loop transfer function. Once a network realizable closed loop transfer matrix has been found, a corresponding controller can be implemented using a network structured version of Internal Model Control.Comment: 3 page

CORRUPTION, FRAUD AND INTERNAL CONTROL

The economic crunch created a specific context for activity and profitability failing. The corruption is more and more common in our days. In the same time, the amount of money lost by businesses and the public sector to larger frauds increased last year to unthinkable limits. The shareholders expect the directors to take care to protect their company’s assets. This is why the financial controller has a very important role in each organization. The techniques to detect corruption or a fraud are developing every year. Thus, the introduction of computerized accounting has created the opportunities to conduct very comprehensive tests at relatively little cost. However, the fraudsters became more and more clever, and the controllers are responsible for the prevention and detection of fraud. The procedures that controllers should adopt with regard to fraud depend on the risk that fraud could occur and remain undetected and also the risk of that fraud impairing the truth and fairness of the statement.corruption; fraud; internal control; internal audit; business fraud

Anti-Windup Design for Internal Model Control

This paper considers linear control design for systems with input magnitude saturation. A general anti-windup scheme which optimizes nonlinear performance, applicable to MIMO systems, is developed. Several examples, including an ill-conditioned plant, show that the scheme provides graceful degradation of performance. The attractive features of this scheme are its simplicity and effectiveness

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

Auditor independence, audit committee quality and internal control weaknesses

In this paper we investigate the relation between auditor independence, audit committee quality and the disclosure of internal control weaknesses. We begin with a sample of firms with internal control weaknesses and, based on industry, size, and performance, match these firms to a sample of control firms without internal control weaknesses. Our conditional logit analyses indicate that a relation exists between audit committee quality, auditor independence, and internal control weaknesses. Firms are more likely to be identified with an internal control weakness, if their audit committees have less financial expertise or, more specifically, have less accounting financial expertise and non-accounting financial expertise. They are also more likely to be identified with an internal control weakness, if their auditors are more independent. In addition, firms with recent auditor changes are more likely to have internal control weaknesses.internal control weakness; audit committee financial expertise; auditor independence