This thesis explores a new type of gain medium for fiber lasers and amplifiers, active tapered double-clad fibers (TDCF), and describes their distinct properties, design, and applications. The TDCF technology is based on ...
Modern industrial processes are increasingly complex and managed with limited personnel resources. In order to ease the task of process management new networked communication and monitoring technologies have been developed ...
A very important component of cells is the cell membrane separating the contents of a cell from the outside world. The cell membrane contains membrane proteins which, for example, regulate permeation of molecules through ...
A scalar light field is any stationary monochromatic wave in the visible spectrum which propagates in an isotropic, homogeneous, non-dispersive and non-magnetic medium and thus obeys the Helmholtz wave equation. This thesis ...
Model-Driven Engineering (MDE) is a software development paradigm that is proposed to increase the efficiency of software development. To realize this goal, the design of the software application and the design-time decisions ...
This thesis is dedicated to demosaicing and deblurring problems in digital image processing and their solution exploiting signal adaptive filtering. In particular, we use filtering based on the local polynomial approximation ...
Partly due to the increase in global competition, the nature of manufacturing paradigms in Europe has been undergoing continuous change in recent decades. Pressures from the market are forcing companies to evolve into new ...
Magnetic resonance imaging (MRI) is a medical imaging method used mainly for imaging soft tissue, such as the brain. It has various advantages, such as the noninvasive and nonionizing technique used; high contrast and ...
The ability to learn and create new knowledge is an essential factor in creating an innovative working environment. However, concepts related to learning and knowledge creation are often very abstract in nature. Therefore, ...
Speaker identity plays an important role in human communication. In addition to the linguistic content, speech utterances contain acoustic information of the speaker characteristics. This thesis focuses on voice conversion, ...
Domestic rail freight transport was opened to competition as of the beginning of 2007. This means that all operators who meet the regulations can enter the rail freight transport market and operate rail transport. The ...
Computing the position of a personal mobile device based on a mix of various types of measurements requires a wide array of mathematical concepts ranging from optimisation to robust estimation and nonlinear filtering theory. ...
A computational fluid dynamics (CFD)-based mathematical model is applied to study emission formation in an industrial-scale bubbling fluidized bed boiler burning a fuel mixture consisting mainly of biomass. A modification ...
Boundary value problems (BVPs) are fundamental in electromagnetic engineering. The aim of this thesis is to introduce mathematical structures that can be exploited in a new way to formulate electromagnetic BVPs. The tools ...
Matkaviestintä on muuttanut ihmisten kommunikointitottumuksia viimeisten kahdenkymmenen vuoden aikana. Aiemmin matkapuhelimella vain puhuttiin. 1990-luvulla suosioon nousivat muun muassa tekstiviestit. Nykyään puhelinta ...
Intangible assets consist of the non-physical sources of value related to employees capabilities, organizations resources and way of operating and the relationships with their stakeholders. This thesis examines performance ...
The essential investments in new product development (NPD) made by industrial companies entail effective management of NPD activities. In this context, performance measurement is one of the means that can be employed in ...
Printing papers constitute 45 % of the global paper consumption. As printed products compete with electronic media, printability has become increasingly important as a cost-efficiency factor. It refers to the properties ...
The work of this thesis concentrates on applying the Electrical Low Pressure Impactor (ELPI, Dekati Ltd.) and scanning/differential mobility particle sizer (SMPS/DMPS) to estimate the particle density and particle solidity ...
Mobile technology and services are increasingly used to support workers in various industries. The goal of deploying mobile business services is to achieve various business benefits, such as cost savings, improved productivity, ...