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Battery energy storage design and operation in an HVDC-system with WPP clusters

The electricity sector is in the beginning of a large shift from centralized dispatchable production to distributed variable production. With this necessary change, new challenges arise. One crucial challenge is related to upholding the system balance in the power grid. In this master thesis, a Battery Energy Storage System (BESS) has been implemented in an HVDC-system with large amounts of Wind P

På marginalen En typfallsstudie av förslaget om bidragstak

Moderaternas förslag om bidragstak syftar till att öka de ekonomiska incitamenten för hel- och deltidsarbete i gruppen av bidragstagare med arbetsmarknadsrelaterade försörjningshinder och högt ekonomiskt bistånd. Detta arbete är en typfallsstudie vilken behandlar förändringen i ekonomiska incitament vid införande av bidragstak. Förslagets potentiella påverkan studeras utifrån hur många hushåll som

Insights from experimental hybridization on floral trait inheritance and reproductive isolation in self-compatible and self-incompatible Arabis alpina L. (Brassicaceae)

Hur ärvs blomdoft? Att lukta gott är inte bara viktigt för oss människor. I växternas värld är doft, eller de kemiska doftsignalerna, livsviktigt för att kunna locka till sig pollinatörer eller avskräcka fiender. Vi vet redan mycket om hur insekter reagerar på kemiska signaler från växter och hur doft varierar mellan olika växtarter, men fortfarande väldigt lite om hur blomdoft ärvs inom växtpopuOne of the main challenges in evolutionary ecology is to identify the factors and agents that drive diversification. Two of the most diverse groups of organisms on earth are plants and insects, and evidence strongly suggests that the diversification of both groups is driven by the interactions between them. One fruitful way for understanding how these interactions evolve and diversify is to identi

Förändringsarbetet mot ett klimatneutralt byggande

Syftet med examensarbetet är att studera ledarskapet och ledarens roll i förändringsarbetet mot ett klimatneutralt byggande. I studien utreds vilka faktorer som driver förändringsarbetet mot ett klimatneutralt byggande och hur miljöarbetet kan bli mer attraktivt för anställda i svenska byggföretag. Studien har utförts på ett fallföretag och ett av deras projekt i produktionsfasen. En kvalitativ mThe purpose of this master thesis is to study the leadership and the roll of the leader during a change in the process towards a climate neutral construction process. The study is aiming to find factors which affects the change process towards a climate neutral construction process as well as how the environmental work can become more attractive in projects. The study has been carried out as a ca

Ambivalent personalförsörjning

In 2009 the Swedish parliament decides to discontinue the conscript service, and in 2010 it was replaced by a system based on employed personnel. The purpose of this study is to analyze the factors leading up to the decision to abandon conscript service. This question is interesting to study because the conscript service was reinstated only seven years later due to a worsen security situation and

Exploring the distribution of accessibility by public transport using spatial analysis : a case study for retail concentrations and public hospitals in Athens

This thesis studies the distribution of accessibility by public transport to retail concentrations and public hospitals in Athens, using spatial autocorrelation analysis based on Local Indicators of Spatial Autocorrelation (LISA) method and Geographically Weighted Regression (GWR). For this reason, the study area was divided in a 300x300 meter square grid of points representing the location point

Reconfigurable Instrument Access Network with a Functional Port Interface

The ever-increasing need for higher performance and more complex functionality pushes the electronics industry to find a faster and more efficient way to test and debug an Integrated Circuit (IC). Currently, the IEEE Std. 1149.1, known as Joint Test Action Group (JTAG) is considered as state of the art by the industry. JTAG is used to perform debugging and testing through Test Access Port (TAP). H

En attraktiv arbetsgivare behåller sin personal

Within the last twenty years, the Swedish military has been drastically reduced in size and capability. The conscription service was discontinued which made retaining personnel difficult. The service was reinstated nine years later due to the geopolitical instability around Sweden and the national goal to double personnel by 2035. Consequently, the military must focus on retaining trained personne

Svensk helikopterkapacitet för statlig sjö- och flygräddning - Faktorerna och aktörerna bakom 2000-talets omstruktureringar.

In order for civilian shipping and aviation to be able to operate within Swedish areas of responsibility, an absolute prerequisite is that the state must maintain a well-functioning sea and air rescue service. This requires constant, thorough surface coverage, year round and around the clock with qualified helicopter resources. Until 2002 Swedish national needs, both military and civilian, were ma

Analyzing Call Center Data - A Case Study

Statistical modelling of certain phenomenon to extract patterns is a common theme in data analysis. Applying this precise theme to call center data is riddled with many practical con- cerns and has lead to development of new concepts and theories in stochastic processes. In this thesis we intend to study specic call center dataset with the objective of studying patterns in call arrivals over a per

Sverige och kärnvapen

Today, Sweden is well-known as a nation with a strong voice for non-proliferation and disarmament. This has not always been the case though, during the 1950´s the country was on its way to develop nuclear weapons of its own. This paper seeks to examine how this shift of direction happened during the 1960´s, and how it has affected Swedish security and defence policy as of today. This paper aims t

Är det annorlunda nu?

The purpose of this paper is to compare the posture and operations of Russian nuclear submarines compared to their Soviet predecessors, in the context of nuclear weapons. By conducting a case study comparing the Soviet and Russian nuclear doctrines and their application, limited to the submarine part of the Nuclear triad, and using the Organizational logics model as the method and Waltz’s 3rd imag

Förvaltningen och strategin: Nationella säkerhetsstrategins implementering hos svenska myndigheter

In January 2017 the Swedish Prime minister announced at a conference in Sälen that for the first time in history Sweden now had a National Security Strategy and it was now to be implemented. In Sweden, ministers in the Cabinet are not allowed by the constitution to directly influence the work of Sweden’s governmental authorities. The institutions of the government are independent in the execution

Eston Kohver - En bricka i vilket spel?

The abduction, or arrest as it´s referred to in Russia, of Eston Kohver on the border between Estonia and Russia in September 2014 caused many nations in the western world to condemn the practices of both the Russian counter-intelligence directorate and the Russian justice system. The aim of this thesis is to try to uncover why Russia acted as it did by applying Graham Allison and Philip Zelikows

Det nationella försvaret som försvann

Ever since the end of the Cold War, there has been a differentiated view of the need for a national defense between Sweden and Finland. During the 2000s, Finland has had a strong national defense in relation to its spruce counttries, while Sweden gradually phased out its national defense capabilities. The purpose of this case study is to identify the reason why the two countries have distinguished

Säkerhetspolitik och försvarssamarbete ur ett svenskt perspektiv

This study thesis Swedish national defence cooperation during the time of the Cold War until today within the spectrum of foreign and security policy. The question to be answered are how Sweden has interact with affecting circumstances regarding national security when deciding type of defence cooperation, and how has Swedish defense cooperation evolved into what it is today. The consequences dur

Hälso- och sjukvårdskuratorernas legitimering - En kvalitativ studie om legitimationens faktiska innebörd

As of June 2019, medical health care social workers will become eligible for authorization, thereby putting an end to an over 50-year-long debate. The aim of this study was to investigate this debate and how it has been expressed in various texts, foremost legal documents and professional journal articles. Discourse analysis was used as a methodological tool in order to examine explicit and implic

“Du har gjort detta och detta, här är en insats som passar just dig” : En kvalitativ studie om socialsekreterares handlingsutrymme i arbetet med ungdomar med kriminellt beteende.

The purpose of this paper is to describe and understand the social secretaries’ experiences regarding their discretion in relation to the client group (young people with criminal behavior 15-20 years) from an o. We used a qualitative method through semi-structured interviews with six different social secretaries within one and the same social service in a municipality in southern Sweden. When anal

Journalistikens inträde på Facebook : den politiserade plattformen med dess engagerade användare och dess engagerande aktörer

This thesis studies Marcus Oscarsson, Joakim Lamotte, Dagens Nyheter and Aftonbladet, some of the biggest journalistic actors on Facebook in Sweden, and what kind of political material from them that gets spread and engaged with on Facebook. The thesis also analyze the difference between the private actors Oscarsson and Lamotte and the traditional actors Dagens Nyheter and Aftonbladet and what typ

Vems är ansvaret? Ätstörningar och träningsmissbruk - gyms handlingsplaner för drabbade klienter

Syftet med studien har varit att undersöka gyms ätstörningspolicy och aspekten om var gränsen går mellan konsumentens egenansvar i problematiken gentemot gymmets val att som företag ta ett övergripande ansvar för konsumentens välmående. Studien utgörs av fyra olika gyms deltagande genom semistrukturerade intervjuer och mejlade frågeformulär, samt att fem individer som tidigare varit drabbade av ät