Search results for "SB"
showing 10 items of 1841 documents
Responses of European lobster (Homarus gammarus) and lobster fishers to protective management
2017
Master's thesis Aquatic Ecology BIO500 - University of Agder 2017 Marine protected areas (MPAs) are valued for their conservation benefits to harvested species. However, potential benefits of MPAs to neighboring fisheries are less well-understood. This study quantifies how the European lobster (Homarus gammarus) and the fishery for this valued catch respond to the establishment of a relatively small (5.2 km2) MPA on the Norwegian Skagerrak coast. A series of yearly standardized trap surveys was conducted to estimate lobster abundance and catch weights both inside and outside the MPA before (2010- 2011) and after the MPA was established (2012-2016). Lobster abundance and catch weights were d…
Positive and negative factors in agent oriented software development : a case study
2006
Masteroppgave i informasjonssystemer 2006 - Høgskolen i Agder, Kristiansand This thesis attempts to pinpoint the main differences in agent oriented software engineering as opposed to more legacy approaches. The agent paradigm, still in its infancy, is believed to offer exciting new prospects to the process of modern complex information systems development, but although many tools, frameworks and applications are readily available, there is as of yet no specific research on how these technologies affects and differ the development process. The research approach in finding these factors was two-folded. By conducting a comprehensive literature study, a set of implications was derived to repres…
A Help Desk tool for sporadically occurring inquiries. Based on Microsoft Outlook 2000 and Computas GTA.
1999
Masteroppgave i informasjons- og kommunikasjonsteknologi 1999 - Høgskolen i Agder, Grimstad A help desk is intended to support inquiries from users of one or several systems. The help desk could act as an external service point to customers, just as well as an employee-based service. Because of the movement towards more complex computer environments, support departments need to be more flexible and more proactive in handling service requests. The primary goals of a support department are to increase the quality of service and to lower the cost needed to provide it. The combination of more complex systems to support and the continual demand of lowering the Total Cost of Ownership (TCO), supp…
Outsourcing i byggebransjen : en lønnsomhetsanalyse med vekt på CM-modellen
2014
Masteroppgave i industriell økonomi og teknologiledelse IND 590 Universitetet i Agder 2014 Formålet med denne studien har vært å vurdere om det er økonomisk rasjonelt av en totalentreprenør på Sørlandet å drive som en CM-entreprenør. En CM-entreprenør outsourcer alle de utførende aktivitetene som er involvert i et byggeprosjekt til eksterne aktører i markedet. Studien er konsentrert rundt outsourcingsbeslutningen av fagfeltene betong og tømmer, da det vanligvis er disse funksjonene den tradisjonelle totalentreprenøren på Sørlandet har organisert internt. Problemstillingen er belyst gjennom de teoretiske perspektivene transaksjonskostnadsteori og ressursbasert teori. Transaksjonskostnadsteor…
International Vocational Education and Training Research: An Introduction to the Special Issue
2021
The seven articles in this special issue represent a wide range of international comparative and review studies by international research teams from China, Germany, India, Russia, Switzerland and Mexico. The presented projects are part of the national program "Research on the Internationalisation of Vocational Education and Training", funded by the German Federal Ministry of Education and Research (BMBF). An adapted version of Urie Bronfenbrenner���s ecological systems theory forms the conceptual framework of the special issue. The four system levels (micro, meso, exo and macro) are addressed by one article each. The article on the microsystem level focuses on the intended and implemented c…
Darba aizsardzības sistēmas pilnveidošana AS “BMGS”dzelzsbetona izstrādājumu ražošanā
2019
Tēmas nosaukums - “Darba aizsardzības sistēmas pilnveidošana AS BMGS dzelzsbetona izstrādājumu ražošanā”. Darba autore Tatjana Trošihina. Darba zinātniskā vadītāja: asoc. profesore, Dr. med. Ženija Roja. Darba aizsardzības sistēmas nepārtraukta pilnveidošana ir aktuāls jautājums jebkurā mūsdienīgā ražošanā jebkurā nozarē, jo lai būtu iespējams konkurēt tirgū ir jāmodernizē ražotnes, jāmaina ražošanas procesi, jāmeklē iespējas samazināt izmaksas un tajā pašā laikā sekot, lai izmaiņas negatīvi neietekmētu darba vidi. Maģistra darbs sastāv no četrām nodaļām, secinājumiem un praktiskajām rekomendācijām. Pirmajā nodaļā ir literatūras avotos publicētās informācijas par dzelzsbetona ražošanā sasto…
Electron trapping centres and cross sections in LiNbO3studied by57Co Mössbauer emission spectroscopy
1999
Fast electron trapping processes and aliovalent charge states following the 57Co(EC)57Fe decay are studied in undoped, 5.4 mol% Mg-doped and 0.1 mol% Fe-doped LiNbO3 in various thermochemical reduction (TCR) states. Static 57Co Mossbauer emission spectra of congruent Mg:LiNbO3 recorded at T = 4.2 K in external magnetic field of 4.6 T are presented. Trapping cross section ratios are derived for Fe3+Li, Nb5+Li and Mg2+Li. A method to determine trap concentrations for TCR states of LiNbO3 is outlined. The electron-capture distance of the traps is found to be 2.7±1.4 nm. As this is much smaller than the 6 keV Auger-electron penetration depth, it is concluded that the distribution of the alioval…
Structural and magnetic properties of the solid solution series Sr2Fe1–xMxReO6(M = Cr, Zn)
2005
Strong correlations between the electronic, structural and magnetic properties have been found during the study of doped double perovskites Sr2Fe1−xMxReO6 (0 ≤ x ≤ 1, M = Zn, Cr). The interplay between the van Hove singularity and the Fermi level plays a crucial role for the magnetic properties. Cr doping of the parent compound Sr2FeReO6 leads to a non-monotonic behaviour of the saturation magnetization and an enhancement for doping levels up to 10%. The Curie temperatures monotonically increase from 401 to 616 K. In contrast, Zn doping leads to a continuous decrease in the saturation magnetization and the Curie temperatures. Superimposed on the electronic effects is the structural influenc…
Mossbauer study on the distribution of iron in high coercivity chromium dioxide particles
1992
/sup 57/Fe Mossbauer spectroscopy is applied to determine the level of iron doping in high-coercivity CrO/sub 2/ particles. It is found that, compared with the conventional preparation process, the particles contain an increased amount of Fe/sup 3+/ ions in the CrO/sub 2/ crystal lattice, giving rise to higher magnetocrystalline anisotropy. This is reflected in coercivities up to over 900 Oe. All samples contain as a secondary iron-containing phase some (Cr/sub 1-x/Fe/sub x/)/sub 2/O/sub 3/. The valence of the iron doping is predominantly +3; very weak signals in the Mossbauer spectra suggest the existence of Fe/sup 4+/ in an amount 2-3% of the total number of iron atoms. >
Comparative Mössbauer spectroscopic study of iron impurities in ZnSe
2001
Abstract An anomalous spectral doublet attributed to Fe 2+ impurity pairs is observed in Mossbauer absorption spectra of 57 Fe 0.01 Zn 0.99 Se below room temperature. In Mossbauer emission experiments, ZnSe: 57 Co polycrystal and powder sources exhibit below 45 K the nucleogenic Fe 1+ valence state born as an after effect of the electron-capture decay of 57 Co. Above 8 K, the proportion of the nucleogenic Fe 1+ decreases under the effect of the thermally activated Fe 1+ →Fe 2+ relaxation. The activation energy is estimated to 0.004 eV. While nucleogenic Fe 1+ is absent in ZnSe: 57 Co single crystal spectra, increasing proportions are detected in samples with an enhanced specific surface. Th…