Search results

In this study, low quality waste cooking oil with high total acid value, has been used for biodiesel production. The main factors affecting the reaction has been analysed using Response Surface Methodology (RSM). A quadratic model representing the interrelationships between reaction variables and free fatty acids (FFA) conversion has been developed. Analysis of variance (ANOVA) has been used for c

Employing a large number of antennas at the base station, massive MIMO significantly improves spectral efficiency and transmit power efficiency. On the other hand, massive MIMO also introduces unprecedented implementation challenges, especially in terms of processing and storage of large-size channel state information (CSI) matrices. Since on-chip memory is generally very expensive and has limited

In this study, low quality waste cooking oil (WCO) with high total acid value has been used for biodiesel production. The main factors affecting the reaction have been analysed using Response Surface Methodology (RSM). A quadratic model representing the interrelationships between reaction variables and free fatty acids (FFA) conversion has been developed. Analysis of variance (ANOVA) has been used

Throughout different eras and cultures what is considered the cosmetically ideal breast has varied greatly. There is no broadly accepted standardised method that objectively evaluates aesthetic outcome after breast reduction mammoplasty. The primary aim of this study was to evaluate the result of breast reduction regarding nipple position, comparing it to an objective previously described standard

Undersökning och hantering av arsenikförorenade brunnar i Nicaragua Arsenik förorenar dricksvatten i Nicaragua och framkallar cancer. Lösningen är enkel: sand, tegelstenar och järnspikar. Varje år dör hundratusentals människor till följd av arsenikförorenat dricksvatten. Världshälsoorganisationen WHO listar arsenik på topp-tio-listan över de kemikalier i världen som hotar människors hälsa mest. The awareness of problems concerning arsenic contaminated drinking water sources has during recent years increased. WHO (World Health Organization) decided in 1993 to lower the recommended limit of arsenic in drinking water from 50 μg/l to 10 μg/l, mainly due to observations of its carcinogenicity. New places where the WHO limit for arsenic is exceeded are constantly discovered all over the world.

Undersökning och hantering av arsenikförorenade brunnar i Nicaragua Arsenik förorenar dricksvatten i Nicaragua och framkallar cancer. Lösningen är enkel: sand, tegelstenar och järnspikar. Varje år dör hundratusentals människor till följd av arsenikförorenat dricksvatten. Världshälsoorganisationen WHO listar arsenik på topp-tio-listan över de kemikalier i världen som hotar människors hälsa mest. The awareness of problems concerning arsenic contaminated drinking water sources has during recent years increased. WHO (World Health Organization) decided in 1993 to lower the recommended limit of arsenic in drinking water from 50 μg/l to 10 μg/l, mainly due to observations of its carcinogenicity. New places where the WHO limit for arsenic is exceeded are constantly discovered all over the world.

With advanced navigation systems becoming ubiquitous in modern cars, the availability of detailed GPS data opens up new research areas in the fields of pattern analysis and data mining. By capturing the end-of-trip GPS points of each trip made by a driver, that driver’s meaningful destinations could be identified. The knowledge of these destinations can be used for route prediction, which in turn

Moderate exercise is deemed beneficial for cognition due to increase in dopamine concentrations in the basal ganglia. Auditory white noise is beneficial for cognition, mainly for those with lower attentional ability, i.e. for those having lower tonic dopamine concentrations. For individuals with higher attention ability white noise can have a negative effect. In this thesis it was examined whether

This article investigates the relationship between the economic influences a country has and how the market has observed by 10-year government bond yields through a set of macroeconomic variables. It examines a set of OECD countries between 1980 and 2013 dividing them into two groups namely the G7 group and small countries, even though the specific effect of the USA is investigated as well. The Pa

Society has become locked into an unsustainable agri-food system based on resource intensive industrial agriculture and a globalized supply chain producing food that is damaging to the environment and society. In London, United Kingdom a network of alternative food initiatives exists challenging this agri-food system and bring about a transition to one that is more sustainable. However so far the

The business model is a useful concept to understand how a firm operates. However, little is known about how business models can be managed in times of change. The concept of business model innovation, which is also referred to as business model change on a component-level in the literature, constitutes the adaptation to external factors challenging the sustainability of a company’s business model

It is described in the preparatory work of the Social Services Act that a reasonable standard of living should be based on the prevailing conditions under which the individual lives. Because there is no specified description of the phrase, this entails interpretability of the phrase and therefore uncertainty about what it infers. The purpose of this study is to analyse the representation of the ph

Contracts in the EU operate in a complex legal environment. Depending on the situation, they are subject to a patchwork of national, European, and international rules. As a result, economic operators exercising the ‘four freedoms’ find themselves in a great ocean of private international law, containing smaller islands of EU law and national rules. This paper explores some of the fundamental issu

The EU was initially created as an area of free trade amongst its Member States, its main objective is the realization of the full integration of the internal market. Of central importance to the objective is the fundamental freedoms and thereby the free movement of goods. However, in recent decades issues of an environmental nature have become more prevalent within the EU legal order and a framew

The Basel III regulatory framework was created in direct response to the financial crisis that occurred in 2007-2008. The regulatory framework in place during and before the crisis, Basel II, had not done enough to prevent the crisis. This prompted a revision and expansion of the regulations. The regulators created a new framework, which was initiated in January of 2013 and is expected to be fully