Validerat; 20130813 (global_studentproject_submitter)

The purpose of this thesis is to suggest changes and improvements to youth housing, bothsocial, educational and environmentally and also look at alternatives to cheap construction ofbuildings so that the rents and production costs don’t increase so much or even possibly leadto a decrease in costs. This survey is done for Lulebo to get a better insight on what studentswant for housing and what features students ask regarding future student housing and howmuch they are willing to pay for these features. The aim of the thesis is through research andprevious studies to presents a complete design proposal in the form of student housing thatcan be implemented in a house designed for them. The design proposal must includedrawings, concept art, and the result until the final proposal and description of theaccommodation.To get the information what students are demanding for in a new student housing a survey hasbeen created to be distributed to the three different groups of students (high school students,first-year university students and final year university students). The questionnaire wasdesigned with quantitative method and the results are presented in bar graphs and text whichcan then be analyzed to be interpreted and used in the design. A panel was planned to obtain aqualitative result that can strengthen the results of the survey while contributing to otheraspects such as the opinions and thinking of the persons.A literature study of basic theories was also designed. This contributed to different outcomesmeasures that can reduce costs, but also how students are affected by their home environment,etc. Some of these theories were used in the development of the student apartments andhousing design.According to the survey, the average person who responded to the survey was 18 and 21 yearsold, single and lived in either a student apartment or a regular apartment. The average personspends most studies in group rooms, followed by the library. Those students that study athome always do it in the kitchen, followed by the bedroom with a desk in there. These areasshould have good comfort and light. He/she may even consider having handicappedaccessible home that would facilitate a visit from an acquaintance who is disabled. Theaverage person would rather have a two rooms and a kitchen followed by a one room andkitchen and double room apartment. The bed is an important feature that will take up muchspace in the apartment (they want to sleep in a hundred and twenty beds standing on thefloor). The average person does not want to have extra sleeping space for people who sleepover.The average person would also want the home located near school; have good transport linkssuch as bus stop, grocery store, etc. The laundry and bicycle room should be close on hand inthe house. The average person can even think of being more eco-efficient by scrap sorting andsave on electricity and hot water. It is also important that the apartments have reasonable rent. / <p>Validerat; 20131015 (global_studentproject_submitter)</p>

Diss. (sammanfattning) Karlstad : Karlstads universitet, 2007. / Härtill 5 uppsatser.

Diss. Lund : Univ., 2001.

Lic.-avh. (sammanfattning) Luleå : Luleå tekniska univ., 2005. / Härtill 3 uppsatser.

Validerat; 20120123 (anonymous)

With growing concern for rising fuel prices, peak oil, global warming and climate change in the last few decades, efforts have been made to address and alleviate the possible problems resulting from these threats. Within the transport sector these efforts have been made largely with respect to fuel efficiency of vehicles and alternative fuels. However one aspect not addressed to any great extent is the construction of the transportation infrastructure such as roads and railroads although it is known that this process consumes a lot of energy and causes emissions of greenhouse gases.The main idea behind this thesis is to formulate an energy model in order to assess energy use and greenhouse gas emissions in road construction projects. The scope of the thesis focuses on what is called the earthworks which includes the mass hauls, cutting, filling and crushing of materials. The process of forming the energy model was lead with the help of the following research questions:RQ 1: How can earthworks be optimized in a road construction project?RQ 2: How can energy consumption and greenhouse gas emissions of earthworks be assessed with the data available in the planning stage?RQ 3: What is the relationship between energy consumption and greenhouse gas emissions in road construction projects?The proposed energy model helps understanding the energy use in earthworks processes and is complemented with equations for calculating the corresponding energy use. Implementing the model in road projects requires a bill of mass quantities, a mass haul plan and a production plan. Knowledge about the location and project is helpful for further improving the accuracy of assessments when implementing the model.. In the model the energy use of earthworks is divided into three categories of machines or vehicles namely hauling vehicles, off-road mobile machines and crushing plants. Each category requires different methods for assessing their energy use.The application of the earthworks energy model is analyzed using a case study, based on two road projects in the city of Kiruna in Sweden. The source of crushed aggregates for the base course and subbase of the roads are compared. One alternative is to use nearby sources of gangue which is a by-product of the mining industry. This material can be crushed by a mobile crushing plant next to the road line. The other alternative is to buy these products from LKAB, the local mining corporation which also runs a stationary crushing plant located further away from the road projects. The first alternative will mean shorter mass hauls but might require its mobile crushing plant to run by a diesel electric generator instead of electricity from the grid. The latter issue turns out to be of crucial importance when the earthworks energy model is applied to the case study. In short, unless the energy source of the crushing of aggregates is electricity then the second alternative pays off even if the hauls are longer.One conclusion from the case study is that crushing of aggregates is a very energy consuming activity. Therefore it is an activity worth paying close attention to in order to improve the accuracy of its energy consumption. The fuel consumption of mass hauls is another aspect. It is not so well known how much the fuel consumption can differ between articulated haulers and trucks with trailers under given circumstances. They are designed for different types of conditions and hauling distances but there is an area where these uses overlap and within this area it is important to be able to establish which type of vehicle is the most energy efficient.The earthworks energy model is by no means complete. It is possible to expand it to involve more activities in road construction projects as well as increasing the detail. One way to increase the detailing in the energy evaluation is to connect it closer to the production planning and the implementation and use as a module in a planning software such as DynaRoad, which was used in the case study of this thesis. While increased detail and improved accuracy is important, what’s perhaps more important is to make the model more user friendly in order to spread its use to a wider audience. / Validerat; 20130611 (ysko)

This research evaluates complexity of proper security implementation in embedded devices that possess additional challenge of constrained operational environment – e.g. limited memory, limited processing power and limited energy consumption. Term complexity express ability (or lack of) to implement appropriate security mechanisms, without need for hardware design changes or time-consuming software modifications.Actual security requirements are analysed according to ISO/IEC 27001:2013 standard and implemented in publicly available open-source embedded devices and prototypes created during this research. Implementation outcomes are evaluated against previously listed complexity attributes.Second analysis is performed on data gathered through resource measurements during security requirement implementation and additional experiments. It will attempt to identify relation between additional instructions processing (program code execution) against energy consumption.Important part of this research consists of practical experiments that are performed with both open-source and commercial hardware. Device operation is tested with applied security measures and without them. Energy consumption is measured 100 to 25000 times per second depending on each case. The results give an insight on what is required for security implementation on embedded devices and what are the implications. / <p>Validerat; 20140620 (global_studentproject_submitter)</p>

By the late of 2007, the port of Gavle authorities found out that the harbor capacity was not enough, and needs to be increased. This could be done by having new ports area, building new facilities and dredging the bottom of the sea near the harbor. The dredging of sediment will improve the navigation at the port. The upper layer of dredged sediment was found to be contaminated with harmful materials such as TBT, PCBs and metal parts. These sediments had to be amended with cement, fly ash and merit5000. The stabilized material were used as a backfill in reclamation of new areas for terminal expansion.The aim of this study was to evaluate the interaction between the stabilized materials and the steel sheet pile wall. The cone penetration test data were used to evaluate the geotechnical parameters of the backfill material. Analytical calculations were used to illustrate the design of the sheet pile wall. Finite element method (PLAXIS 2D) was used to analyze the interaction of the sheet pile wall with the stabilized material. / <p>Validerat; 20121030 (anonymous)</p>

In today’s business world, many organizations use Information Systems to manage their sensitive and business critical information. The need to protect such a key component of the organization cannot be over emphasized. Data Loss/Leakage Prevention has been found to be one of the effective ways of preventing Data Loss.DLP solutions detect and prevent unauthorized attempts to copy or send sensitive data, both intentionally or/and unintentionally, without authorization, by people who are authorized to access the sensitive information. DLP is designed to detect potential data breach incidents in timely manner and this happens by monitoring data.Data Loss Prevention is found to be the data leakage/loss control mechanism that fits naturally with the organizational structure of businesses. It not only helps the organization protect structured data but it also helps protection and leakage prevention of unstructured data.DLP is considered as preventive control which when applied helps organization prevents data leakage of sensitive information (Personal identifiable information, financial information, trade secrets, merger and acquisitions etc.).The DLP solution is not only for the big organizations and for particular industry sector like banking and finance but it is a need for small organizations and other fields of business (Health care, aviation, consulting etc.) due to various Laws and Regulatory requirement by different countries.In this thesis we have taken a case study of one of the organization which is a fortune 500 company head quartered in US and spread all across the globe, and is having its business majorly in payroll processing and HR solutions. The sensitivity of the nature of work and the data the organization has made us to do a detailed study and case research of DLP in conjunction with the previous technologies organization has after implementing the DLP solution.We have done detailed study and research on the security gaps DLP has narrowed in the organization by studying all the technologies prior to implementing DLP. Further research on DLP is also covered in this thesis; here we have taken one of the hottest and emerging technologies in market, i.e. cloud computing with DLP. It's always said that one of the major disadvantage of adopting cloud computing is Security, here in this report we have tried to find and analyze the gap that can be filled by integrating DLP with cloud computing. A more detailed study and research has to be taken in this area of cloud computing with DLP. / <p>Validerat; 20130108 (global_studentproject_submitter)</p>