Fourier self-deconvolution in coherent anti-Stokes Raman scattering spectrum analysis

Coherent anti-Stokes Raman scattering (CARS) microscopy is rapidly developing into a unique microscopic tool in biophysics, biology and the material sciences. The nonlinear nature of CARS spectroscopy complicates the analysis of the received spectra. There were developed mathematical methods for signal processing and for calculations spectra. Fourier self-deconvolution is a special high pass FFT filter which synthetically narrows the effective trace bandwidth features. As Fourier self-deconvolution can effectively reduce the noise, which may be at a higher spatial frequency than the peaks, without losing peak resolution. The idea of the work is to experiment the possibility of using wavelet decomposition in spectroscopic for background and noise removal, and Fourier transformation for linenarrowing.

Gasification of Black Liquor as a Way to Increase Power Production at Kraft Pulp Mills

The study is focused on the opportunity to improve the power performance from black liquor at Kraft pulp mills. The first part of the paper includes an overview of a traditional recovery system, its development and indication of the integral drawbacks which provoke the search for more efficient methods of black liquor treatment. The second part is devoted to the investigation of black liquor gasification as a technology able to increase electric energy generation at pulp mills. In addition, a description of two most promising gasification processes and their comparison to each other are presented. The paper is based on a literature review and interviews of specialists in this field. The findings showed that while the modern recovery system meets demands of the pulp mills, pressurized oxygen-blown black liquor gasification has good potential to be used as an alternative technology, increasing the power output from black liquor.

Kuva-albumi Neuvosto-Karjalasta

Kirja-arvio

Suomalaisena, venäläisenä ja kolmantena : etnisyysdiskursseja transnationaalissa tilassa

Ajankohtaista: Lectio praecursoria Joensuun yliopistossa 27.11.2009.

Stress testing and risk evaluation of new capacity payment algorithm proposed by Market Council

In the Russian Wholesale Market, electricity and capacity are traded separately. Capacity is a special good, the sale of which obliges suppliers to keep their generating equipment ready to produce the quantity of electricity indicated by the System Operator. The purpose of the formation of capacity trading was the maintenance of reliable and uninterrupted delivery of electricity in the wholesale market. The price of capacity reflects constant investments in construction, modernization and maintenance of power plants. So, the capacity sale creates favorable conditions to attract investments in the energy sector because it guarantees the investor that his investments will be returned.

Naapurit meistä ja me heistä

Kirjallisuusarvostelu

Koivun valitus 2

Sanat: Kalevala, runo 44: 169- 334: "Uuden kanteleen veisto".

Käy unonen kätkyehen

Sanat: Kanteletar, 2.kirja, runo 175.

Koivun valitus 1

Sanat: Kalevala, runo 44, 1-168: "Uuden kanteleen veisto".

Antero ja Kaloniemen neito

San. Kanteletar: 3.kirja, runo 62.

Kalevalan alkusanat

Sanat: Kalevala, runo 1: 1-100.

Velisurmaaja

Sanat: Kanteletar, Uudempia lauluja, n:o 4.

Laulu laiskana pitävi

Sanat: Kanteletar, 2.kirja, runo 212.