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14 Uppsatser om Selectivity - Sida 1 av 1

Knapphet och Selektivitet: Påverkan på attityd och värde

The study examines Selectivity of the customer base and scarcity of a product?s effect on attitude and value towards a product or service. A questionnaire study is made from three different situations. The result varied depending on the situation; however it was found that Selectivity of the customer base and scarcity has a great impact on the attitude and the perceived value towards a product or service. Selectivity of the customer base was found having the highest level of impact on both attitude and perceived value.

Enantioselektiv HPLC-analys med kirala stationärfaser bestående av makrocykliska glykopeptider och polysackarider

The purpose of this study was to evaluate enantioselective analytical methods by separation of the enantiomers of four drugs (citalopram, zopiclone, tramadol and methylphenidate) and their metabolites. The analyses were performed with HPLC-UV with columns whose stationary phases were based on macrocyclic glycopeptides (Chirobiotic V, V2 and T) and polysaccharides (Lux Cellulose-1, Cellulose-2 and Amylose-2).The Chirobiotic V column showed high Selectivity for citalopram and its metabolites. High resolution was obtained using a mobile phase consisting of methanol, acetic acid and ammonia. High Selectivity for the enantiomers of zopiclone and its metabolites were obtained on the Cellulose-2 column using a mobile phase consisting of acetonitrile and ammonium acetate buffer.The enantiomers of tramadol were separated with the Amylose-2 column. However, changes in the pressure arose, probably caused by the additive NH4HCO3.

Selektivitet mellan hög- och lågspänningssäkringar ? I anläggningar med transformatorer ? 500 kVA

Göteborg Energi AB är ett bolag med höga ambitioner att säkerställa ett stabilt distributionsnät för sina kunder. Med ett säkerställande följer åtgärder i form av beräkningar för komponenter som transformatorer av olika märkeffekt, hög- och lågspänningssäkringar och andra kritiska skyddsanordningar som t.ex. reläskydd. Vid ett flertal tillfällen under de senaste åren har det uppmärksammats en problematik där ett fel i lågspänningsnätet har löst ut anslutande transformator. Felet har grundat sig en svag selektivitet mellan transformatorsäkring och lågspänningssäkring.

Planering av produktionsflöden. Vad kan påverkas i projekteringsfasen?

Göteborg Energi AB är ett bolag med höga ambitioner att säkerställa ett stabilt distributionsnät för sina kunder. Med ett säkerställande följer åtgärder i form av beräkningar för komponenter som transformatorer av olika märkeffekt, hög- och lågspänningssäkringar och andra kritiska skyddsanordningar som t.ex. reläskydd. Vid ett flertal tillfällen under de senaste åren har det uppmärksammats en problematik där ett fel i lågspänningsnätet har löst ut anslutande transformator. Felet har grundat sig en svag selektivitet mellan transformatorsäkring och lågspänningssäkring.

Förslag till vägbro vid Hössnamotet - ? Konceptframtagning och kontrollberäkning av bro över väg 40

Göteborg Energi AB är ett bolag med höga ambitioner att säkerställa ett stabilt distributionsnät för sina kunder. Med ett säkerställande följer åtgärder i form av beräkningar för komponenter som transformatorer av olika märkeffekt, hög- och lågspänningssäkringar och andra kritiska skyddsanordningar som t.ex. reläskydd. Vid ett flertal tillfällen under de senaste åren har det uppmärksammats en problematik där ett fel i lågspänningsnätet har löst ut anslutande transformator. Felet har grundat sig en svag selektivitet mellan transformatorsäkring och lågspänningssäkring.

Kraftspelsanalys av transportstag : Prefabricerade väggelement i betong

A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, Selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst.The titania-supported catalyst did not only show higher stability than alumina, but also presented a different cause of deactivation, carbon formation. In addition, a kinetic model was obtained for the titania-supported catalyst, and a study of the effect of different operating conditions (temperature, composition and partial pressures of synthesis gas and water) on the deactivation rate and carbon formation of this catalyst was performed.

Deaktivering av metanisering katalysatorer

A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, Selectivity and specially, activity loss), and compare it with an alumina-supported nickel catalyst.The titania-supported catalyst did not only show higher stability than alumina, but also presented a different cause of deactivation, carbon formation. In addition, a kinetic model was obtained for the titania-supported catalyst, and a study of the effect of different operating conditions (temperature, composition and partial pressures of synthesis gas and water) on the deactivation rate and carbon formation of this catalyst was performed.

Beredning av lokalnät i landsbygd

In this thesis a rural network in Norrbotten, Sweden, has been to designed and planned with the purpose of improving distribution reliability by exchanging existing overhead lines with underground cables. General network design considerations are discussed as well as the ones for the specific low voltage grid. During the design phase the maximum power of domestic consumers has been estimated using Velander?s method. Currents, voltage drop and impedance of the network have been calculated and fuse operation and Selectivity has been considered.

Vinnare och förlorare på biståndsarenan? : En analys av EU:s biståndsflöden

Aid effectiveness is a reoccuring theme in the social sciences. Maybe rightfully so, as development is slow in many parts of the developing world. Core literature on the matter seems to suggest that aid effectiveness is contingent on recipients? level of corruption. Assuming this to be true, I examine the EU?s disbursements of Official Development Assistance over the past decade by running regressions: is there a relationship between the level of aid received, and a country?s level of corruption? As the EU is one of the largest donors of foreign aid globally, and has the power to shape the global foreign aid agenda, this question puts to the test whether the EU is leading the way, or rather is an obstacle in front.

A graphical mapping of how light is used in theatre

This treatise analysis what functions light has in theater. It was inspired by Rosalinda Krauss essay Sculpture in the Expanded Field but builds mostly on the following three books Linda Essig Lighting and the design idea (2nd ed), Nigel H. Morgan Stage lighting for theater designers and Francis Reid The stage lighting handbook (6th ed). It discovers nine unique functions of light (performance style, dramatic style, image,illumination, 3D space, 3D form, Selectivity, environment, atmosphere) and develops a graphical mapping of them based on a mapping by Reid. The functions performance style, dramatic style, image are superior the others.

Detection of interesting areas in images by using convexity and rotational symmetries

There are several methods avaliable to find areas of interest, but most fail at detecting such areas in cluttered scenes. In this paper two methods will be presented and tested in a qualitative perspective. The first is the darg operator, which is used to detect three dimensional convex or concave objects by calculating the derivative of the argument of the gradient in one direction of four rotated versions. The four versions are thereafter added together in their original orientation. A multi scale version is recommended to avoid the problem that the standard deviation of the Gaussians, combined with the derivatives, controls the scale of the object, which is detected.

Att finnas eller inte finnas : En läromedelsanalys i svenska som andraspråk och engelska med fokus på bias och porträttering av minoriteter

The content of teaching materials considerably affects pupils? attitudes and worldview. This paper is an analysis of textbooks used in 7th through 9th grade of the Swedish School system in Swedish as a Second Language (SSL) and English as a Foreign Language (EFL). The purpose of this paper is to look at which minority groups, the five official national minorities as well as other minorities, are included and portrayed in the textbook series Tre gånger svenska and Wings Mini as well as to see if there is any bias in their portrayal. The seven types of bias investigated; invisibility, stereotyping and generalizations, unreality, imbalance and Selectivity, fragmentation and isolation, linguistic bias and cosmetic bias are an adaption of the framework to detect bias in curriculum materials presented by Sadker and Zittleman (2002/2003).

Ett (o)tillåtet undantag eller en (ny)etablerad regel? : - En studie av den nuvarande folkrättsliga regleringen av humanitär intervention

AbstractThis essay has as its purpose to discuss the current legal regulation of the concept of humanitarian intervention. The inconsistencies in the debate over the legal status of this concept, and the legal uncertainty it brings to the acts of states and the lives of their nationals is a motivating factor for the writing of this essay. However, it has been clear from the outset that the concept of humanitarian intervention is intricately connected to political and moral ideas and values. Thus, the attitude taken towards this doctrine will be highly dependent on the perspectives of the state, government or single author representing it.Following this starting point, the aim of this essay is not to present a single answer as to whether humanitarian intervention is, or is not, legal, but to research, compare and analyze the different arguments put forward in this subject in international law today. Hopefully, this will provide the reader of this essay with some insight into the sources of international law of today and how the principles of state sovereignty, non-intervention, the prohibition of force and the protection of human rights relate to the concept of humanitarian intervention.A frank overview of the UN Charter does not support use of force except in the case of self-defence or without a Security Council mandate.

Survey of regulations concerning pesticides in Sweden and the EU : cultivation techniques and competition aspects for Swedish onion and apple producer

As a member of the EU, Sweden has, in some cases, transferred the controlling rights to the Union. This means that the rules defined by the EU must be followed in all member countries, including Sweden. The European Agricultural policy constitutes the largest part of the EU's annual budget and is in contrast to many other areas fully funded at EU level. The last decade, many new regulations on chemicals and pesticides have been introduced which brought great changes and a lot of work throughout the Union, including Sweden. Sweden has always had a strict policy on chemicals and has been at the forefront when it comes to sustainable agriculture and environmental management.