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Tieto Oyj is an IT service company providing IT and product engineering services. Active in more than 20 countries with approximately 16,000 employees, Tieto is one of the largest IT service providers in Europe. Tieto is domiciled in Helsinki, Finland, and the company's shares are listed on the NASDAQ OMX Helsinki and Stockholm.The company provides services to the following sectors: financial services; manufacturing, retail & logistics; public, healthcare & welfare; telecom, media and energy.The number of full-time employees amounted to 15,700 at the end of March 2014. Of Tieto's personnel, 33% is located in Finland, 18% in Sweden, 13% in Czech Republic,11% in India, 6% in China, and the rest spread across other countries. 28% of the 14,699 employees worldwide are women. Net sales by country was Finland 48%, Sweden 33%, and International 19%. As of 2013, 50% of Tieto's shareholders are Finnish and 3% are Swedish. Wikipedia.


Golebiowski J.,Bialystok Technical University | Bycul R.P.,Tieto
International Journal of Numerical Methods for Heat and Fluid Flow | Year: 2014

Purpose - The paper aims to propose a parallel algorithm in order to increase speed and efficiency of an analysis of transient thermal field in layered DC cables. Design/methodology/approach - Initial-boundary problem of thermal field was discretized by means of implicit finite difference method in cylindrical coordinates. A two-stage time decomposition method was applied to introduce parallel computations. An assumed duration of the transient state was decomposed. The system of algebraic equations was being solved with the use of a conjugate gradient method (with diagonal preconditioning) in all time intervals simultaneously. Findings - A method for solving (with the use of parallel computing system) the transient heat conduction equation in a DC cable consisting of arbitrary number of material layers was given. The dependence of the convective heat transfer coefficient on the location on the perimeter of the cable and on its surface temperature (which introduced non-linearity in the boundary condition) was taken into account. The influence of the determined field on the efficiency of the heat source was also taken into consideration in the model. Research limitations/implications - The main limitation is induced by cylindrical and coaxial structure of the consecutive layers of the system. Thermal field is generated by direct current flow only. The length of the fragment of the cable under consideration should be much greater than its diameter. Practical implications - The time-spatial distribution of thermal field in the cross-section of the cable can be used for analysis of its reliability and for determination of important characteristics and parameters of the system. Originality/value - A parallel algorithm of solving initial-boundary parabolic problem was proposed as a result of synthesis of three methods (finite difference, time decomposition and conjugate gradient). An algorithm of minimization of disturbances of the solution introduced at the division points was given. Equations approximating real distribution of heat transfer coefficient from the surface of the cable were proposed. Copyright © 2014 Emerald Group Publishing Limited. All rights reserved. Source


Machane W.,Tieto
International Journal for Numerical Methods in Fluids | Year: 2010

The development of viscous flow in a curved duct under variation of the axial pressure gradient q is studied. We confine ourselves to two-dimensional solutions of the Dean problem. Bifurcation diagrams are calculated for rectangular and elliptic cross sections of the duct. We detect a new branch of asymmetric solutions for the case of a rectangular cross section. Furthermore we compute paths of quadratic turning points and symmetry breaking bifurcation points under variation of the aspect ratio γ (γ=0.8...1.5). The computed diagrams extend the results presented by other authors. We succeed in finding two origins of the Hopf bifurcation. Making use of the Cayley transformation, we determine the stability of stationary laminar solutions in the case of a quadratic cross section. All the calculations were performed on a parallel computer with 32×32 processors. © 2009 John Wiley & Sons, Ltd. Source


Junkkari M.,University of Tampere | Sirkka A.,Tieto
International Journal of Ad Hoc and Ubiquitous Computing | Year: 2011

The tracing of resources and emissions has been recognised increasingly important in supply chains. The developed traceability graph enables tracing of information associated with products and their parts. Tracing in a supply chain requires the three integrated levels of actions: 1 at the physical level the Radio-Frequency Identification (RFID) is used for physical objects 2 at the data-storing level logical counterparts of RFID tags and database objects are mapped 3 operational actions determine how recourses, emissions etc. are portioned in different parts of the traceability graph. Briefly, we integrate RFID technology with databases and operational actions of the supply chain. © 2011 Inderscience Enterprises Ltd. Source


Tieto (HEX:TIE1V)(STO:TIEN) will publish its third-quarter results for 1 January–30 September 2015 on Thursday 22 October 2015 at 8.00 am EET (7.00 am CET, 6.00 am UK time). Press conference for analysts and media will be held at Tieto’s premises in Stockholm, address: Fjärde Bassängvägen 15, at 11.00 am EET (10.00 am CET, 9.00 am UK time). The results will be presented in English by Kimmo Alkio, President and CEO, and Lasse Heinonen, CFO. The conference will be webcasted (http://webcast.tieto.com/quarterlyreport/?q=221015) and can be viewed live on Tieto's website (http://www.tieto.com/investors). To join the conference, attendees need Adobe Flash plugin version 10.1.0 or newer. The meeting participants can also join a telephone conference that will be held at the same time. The telephone conference details can be found below. To ensure that you are connected to the conference call, please dial in a few minutes before the start of the press and analyst conference. An on-demand video will be available after the conference. Tieto publishes financial information in English and Finnish. Tieto is the largest IT services company in the Nordics providing full lifecycle IT services. We also provide global product development services for companies in the communications and embedded technologies arena. Through industry insight, technology vision, and innovative thinking, Tieto proactively strives to inspire and engage our customers in finding new ways of accelerating their business. Building on a strong Nordic heritage, Tieto combines global capabilities with local presence. Headquartered in Helsinki, Finland, Tieto has over 13 000 experts in more than 20 countries. Turnover is approximately EUR 1.5 billion. Tieto’s shares are listed on NASDAQ in Helsinki and Stockholm. www.tieto.com This information was brought to you by Cision http://news.cision.com


Tieto (HEX:TIE1V) (STO:TIEN) will publish its second-quarter results for 1 January–30 June 2015 on Wednesday 22 July 2015 at 8.00 am EET (7.00 am CET, 6.00 am UK time). Press conference for analysts and media will be held at Tieto’s premises in Helsinki, address: Aku Korhosen tie 2–6, at 11.00 am EET (10.00 am CET, 9.00 am UK time). The results will be presented in English by Kimmo Alkio, President and CEO, and Lasse Heinonen, CFO. The conference will be webcasted (http://webcast.tieto.com/quarterlyreport/?q=220715) and can be viewed live on Tieto's website (http://www.tieto.com/investors). To join the conference, attendees need Adobe Flash plugin version 10.1.0 or newer. The meeting participants can also join a telephone conference that will be held at the same time. The telephone conference details can be found below. To ensure that you are connected to the conference call, please dial in a few minutes before the start of the press and analyst conference. An on-demand video will be available after the conference. Tieto publishes financial information in English and Finnish. Tieto is the largest IT services company in the Nordics providing full lifecycle IT services. We also provide global product development services for companies in the communications and embedded technologies arena. Through industry insight, technology vision, and innovative thinking, Tieto proactively strives to inspire and engage our customers in finding new ways of accelerating their business. Building on a strong Nordic heritage, Tieto combines global capabilities with local presence. Headquartered in Helsinki, Finland, Tieto has over 13 000 experts in more than 20 countries. Turnover is approximately EUR 1.5 billion. Tieto’s shares are listed on NASDAQ in Helsinki and Stockholm. www.tieto.com This information was brought to you by Cision http://news.cision.com

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