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A novel and effective approach for determining mechanics and residual stress when turning a component with curved surfaces is presented in this paper. This predictive approach is based on a three-dimensional analytical model to study the distributed mechanics and residual stress caused by vary cutting condition during the machining process. The variation of uncut chip area in this process can be d
The bone tissue formed at the contact interface with metallic implants, particularly its 3D microstructure, plays a pivotal role for the structural integrity of implant fixation. X-ray tomography is the classical imaging technique used for accessing microstructural information from bone tissue. However, neutron tomography has shown promise for visualising the immediate bone-metal implant interface
Growing amounts of waste generation in remote areas without proper waste management systems is a problem to human health and the environment. The Amazon holds the biggest freshwater resources in the world, is a biodiversity hotspot and its communities are placed in distances that can take days by boat to be reached. A National policy with EPR instruments requires private companies to take-back pac
Geographical Information Systems (GISs) have shown to be of great help in the work at contaminated sites. Today there is an increase in the development of 3D modeling in many fields. However, to combine the advantage working with spatial data in a GIS and 3D modeling for subsurface soil data is limited. In this study, the possibilities of interpolating volumes of soil contamination in 3D were inve
Since the 1970’s there has been several attempts within the UN at drafting a binding instrument on business and human rights. Up until today, none of the attempts at adopting binding standards have succeeded, with the only successful initiative being the United Nations Guiding Principles on Business and Human Rights – a voluntary set of guiding principles meant to further the respect for human rig
The project explores the application of urban farming in a high-density urban area while considering local characteristics. The site is located on Xiamen Island, China. China has a long history with agriculture since ancient times. However, with the economic growth and urban sprawl from the 1970s, the farming lands are gradually taken by the modern urban blocks. The urban planning did not consid
We investigate to what degree return on technology stocks are affected by industry-, country- and global factors. Furthermore, the analysis is extended to look deeper into the industry factors by examining what the exposure of technology stocks to industry-specific shocks is caused by. In previous studies, the aim has been to try to determine whether industry-, country- or global effects are the m
This paper examines the properties of the two recent structural break unit root tests developed in Harvey, Leybourne and Taylor (2013) and Narayan and Popp (2010). The properties are investigated by Monte Carlo simulations in an environment where two trend breaks of small to large magnitudes are present. We find that the Harvey, Leybourne and Taylor (2013) test has superior size and power properti
Globally, 500 million smallholder farmers require finance to secure a more productive, efficient, sustainable, and inclusive food system. Thus far, traditional financial services have been unsuccessful in reaching these farmers. Yet, mobile money services are proposed as a potential tool for enabling smallholder farmers access to financial services. Nonetheless, this proposed impact of mobile mone
Supply chain management (SCM) has become more challenging than ever, considering the effect of globalization on organizations as operating through transnational business networks. Conventional supply chains have been facing struggles such as lack of advanced technologies and traceability in operation, which then leads to operational inefficiencies. Blockchain (BC) technology offers a set of featur
The vehicle industry is making great strides in electric and hybrid technologies, representing a significant step towards reducing emissions from personal vehicles. In order to make the transition to new hybrid technologies as convincing as possible, well-functioning and smooth transitions between traditional combustion engines and electric motors are required. So-called mild hybrids enable a cos
Thesis purpose The purpose of our thesis is to explore how and why consumers with low prior knowledge educate themselves about sports supplements and what effect gender has. Methodology Our research derives from a pragmatic orientation. We conducted a multi-method qualitative study, combining observations and interviews in order to explore and understand the online customer journeys of consumers
In today's society, much energy is used and all energy use (e.g. heat, electricity) affects the environment. Greenhouse gas emissions from energy affect the climate of the earth and increase the natural greenhouse effect. Environmental impact because of energy use causes both local and global problems. Efficient energy use in buildings is a prerequisite for dealing with climate issues and in t
Arbetsrelaterade skador orsakar personligt lidande och ekonomiska förluster för både företag och privatpersoner. Repetitivt arbete och statiska arbetsställningar med armarna kan leda till belastningsskador i axel- och halsregionen. Detta examensarbete har haft som syfte att utveckla ett mjukt bärbart robotsystem med Bioservo Technologies Soft Extra Muscle (SEM) teknik, som ska ge assistans vid lyfWork related injuries causes personal suffering and economic loss for both companies and individuals. Repetitive work and static postures with the arms can lead to musculoskeletal disorders (MSD) in the shoulder and neck region. This thesis set out to develop a wearable soft robotic arm lifting system using Bioservo Technologies’ Soft Extra Muscle (SEM) technology. The objective was to develop a f
Väpnade konflikter är komplexa och mångfacetterade – män och kvinnors roller och nivå av inblandning varier avsevärt. Med detta i åtanke är det nödvändigt för internationell rätt och dess utövare att erbjuda ett reellt skydd, där ansvarsutkrävande och upprättelse erbjuds på lika villkor för alla oavsett kön. Risken är annars att vissa grupper osynliggörs. Sammanfattningsvis krävs det en nyanserad
En två-kolonn MCSGP process för upprening av Liraglutid genomfördes i laboratorieskala. Den här processen är inte en kommersiell uppreningsprocess, utan att den är ett modellsystem med en realistisk peptidblandning och med en icke-kommersiell harts. Först modellerades processen med en konvektiv dispersiv modell för att beskriva koncentrationen genom kolonnen och den steriska massaktionsmodellen föA twin-column MCSGP process for the purification of Liraglutide was implemented at lab scale. This process is not a commercial separation step, but it is a model system with a realistic peptide mixture and with a non-commercial resin. First, the process was modeled using a convective dispersive model to describe the concentration along the column and the steric mass action model to describe the ad
This master’s thesis report describes the development of a new system for control and monitoring of a helium liquefaction plant which has been carried out at Kryolab, Lund University. At the plant, helium gas is purified and then cooled in several steps until it condensates. The plant is very similar to the ones constructed today, but Kryolab wished to replace the outdated control system. The new
A model of the Swedish power plant Mälardalen Energi, developed by Solvina AB was simulated in Dymola with different types of control strategies in order to evaluate if they could improve the operational flexibility of the plant and, thus, its ability to deliver frequency control to the Swedish power grid. Several different control strategies and process modifications were tested and compared to p
In order to transform the fossil fuel dependent transport sector the promotion of biofuels has been crucial in the European Union’s transition towards climate neutrality. To ensure the sustainability of biofuels the European Commission published a Delegated Act on March 13th 2019, proposing the gradual phase-out of high emitting biofuels that may cause indirect land use change (ILUC) – one of them
