Myynti ja toimituskanavan valinta ulkomaan kaupassa, kohdemaa Venäjä

Parissa kymmenessä vuodessa on tapahtunut paljon muutoksia. Neuvostoliitto hajosi, Suomen talousrakenne muuttui, globalisaatio kiihtyy kasvavalla vauhdilla, viennin kuljetusmuotoihin on tullut muutoksia, mutta yritystoiminta edellyttää pysymistä ajan tasalla. Tässä diplomityössä tutkitaan myynti- ja toimituskanavien valintoja EU:sta Venäjälle tapahtuvissa viennissä. Työssä käytetään Venäjältä saatavaa tietoa, sillä suurimmat lopputulokseen vaikuttavat kuljetuskustannukset kuten kuljetus, tavaran käsittely ja välivarastointi syntyvät Venäjän puolella. Vienti EU:sta Venäjälle on kasvanut koko ajan tasaisella vauhdilla ja muodostanut samalla tavanomaisesta poikkeavia kuljetusmenetelmiä. Suomessa pk-yrityksillä ei ole resursseja perehtyä aiheeseen, mutta koko ajan yhä useammat yritykset harjoittavat kauppaa ohjaamalla tavaran valmistajalta suoraan vastaanottajalle. Silloin tavara on lähetettävä esimerkiksi eurooppalaiselta keskusvarastolta Venäjälle, jolloin säästytään turhista kuljetuksista Suomen kautta. Työssä tutkitaan yleisimpiä käytössä olevia kuljetusmuotoja, rautatiekuljetuksen potentiaalia ja maantiekuljetuksen mahdollisuuksia. Siinä analysoidaan logistisen teorian pääpiirteitä, yritystoiminnan logistisia prosesseja samoin kuin EU:n vientisäädöksiä ja EU:sta lähtevien vientikuljetuksien organisointiongelmia. Käytössäni on logististen prosessien rakenteen metodologia. Työssä suoritetaan vientiprosessin tutkimus ja esitetään suoritetun tutkimuksen tulokset. Tuloksien pohjalta tehdään päätökset.

Magnetic and transport properties of II-V diluted magnetic semiconductors doped with manganese and nickel

This thesis is devoted to investigations of three typical representatives of the II-V diluted magnetic semiconductors, Zn1-xMnxAs2, (Zn1-xMnx)3As2 and p-CdSb:Ni. When this work started the family of the II-V semiconductors was presented by only the compounds belonging to the subgroup II3-V2, as (Zn1-xMnx)3As2, whereas the rest of the materials mentioned above were not investigated at all. Pronounced low-field magnetic irreversibility, accompanied with a ferromagnetic transition, are observed in Zn1-xMnxAs2 and (Zn1-xMnx)3As2 near 300 K. These features give evidence for presence of MnAs nanosize magnetic clusters, responsible for frustrated ground magnetic state. In addition, (Zn1-xMnx)3As2 demonstrates large paramagnetic response due to considerable amount of single Mn ions and small antiferromagnetic clusters. Similar paramagnetic system existing in Zn1-xMnxAs2 is much weaker. Distinct low-field magnetic irreversibility, accompanied with a rapid saturation of the magnetization with increasing magnetic field, is observed near the room temperature in p- CdSb:Ni, as well. Such behavior is connected to the frustrated magnetic state, determined by Ni-rich magnetic Ni1-xSbx nanoclusters. Their large non-sphericity and preferable orientations are responsible for strong anisotropy of the coercivity and saturation magnetization of p- CdSb:Ni. Parameters of the Ni1-xSbx nanoclusters are estimated. Low-temperature resistivity of p-CdSb:Ni is governed by a hopping mechanism of charge transfer. The variable-range hopping conductivity, observed in zero magnetic field, demonstrates a tendency of transformation into the nearest-neighbor hopping conductivity in non-zero magnetic filed. The Hall effect in p-CdSb:Ni exhibits presence of a positive normal and a negative anomalous contributions to the Hall resistivity. The normal Hall coefficient is governed mainly by holes activated into the valence band, whereas the anomalous Hall effect, attributable to the Ni1-xSbx nanoclusters with ferromagnetically ordered internal spins, exhibits a low-temperature power-law resistivity scaling.

Transfer of MPEG-2 Transport Stream over MPLS

This study examines how MPEG-2 Transport Stream, used in DVB-T video transmission, can be reliably and efficiently transferred to remote locations over an MPLS network. All the relevant technologies used in this scenario are also discussed in the study. This study was done for Digita Oy, which is a major radio and television content distributor in Finland. The theoretical part of the study begins with the introduction to MPLS technology and continues with explanation of IP Multicast and its components. The fourth section discusses MPEG-2 and the formation and content of MPEG-2 Transport Stream. These technologies were studied in relevant literature and RFC documentation. After the theoretical part of the study, the test setup and the test cases are presented. The results of the test cases, and the conclusions that can be drawn based on them, are discussed in the last section of the study. The tests showed that it is possible to transfer digital video quite reliably over an MPLS network using IP Multicast. By configuring the equipment correctly, the recovery time of the network in case of a failure can be shortened remarkably. Also, the unwanted effect of other traffic on the critical video traffic can be eliminated by defining the Quality of Service parameters correctly. There are, however, some issues that need to be tested further before this setup can be used in broadcast networks. Reliable operation of IP Multicast and proper error correction are the main subjects for future testing.

Agricultural phosphorus and water quality : sources, transport and management

Selostus: Maatalous, fosfori ja veden laatu: alkuperä, kulkeutuminen ja vesistökuormituksen hallinta

Nutrient allocation, accumulation and above-ground biomass in grey alder and hybrid alder plantations

Abstract

Ground beetle (Coleoptera, Carabidae) diversity in Finnish arable land

Appendix: Species of Carabidae and their total catch using pitfall-traps