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1183 Uppsatser om Search engines - Sida 17 av 79

Mätning av abrasivflöde för vattenskärningsmaskiner

The content of the following report is the summarized result of three students thesis at Blekinge Institute of Technology in co-operation with Water Jet Sweden AB. This report will give the reader a description of principles how to measure the abrasive mass flow in a waterjet cutting system. The work began with a visit to Water Jet Sweden AB to get a closer look at the problem. When the analysis of the problem was done the criteria were defined in the form of demands and desires. The main task of the criteria was to guide the search for the solution.

Abrasiv nötning av polymerer tillverkade genom 3D-skrivning

Volvo Cars in Skövde manufacture and assemble Volvo engines. When attaching the ignition coil to all 4-cylinder engines, a special mounting tool is required. This mounting tool is currently manufactured from injection-molded polyoxymethylene (POM), a thermoplastic. It has been noted that the life span of the tool is shortened as a result of abrasive wear that occurs during the attachment process of the ignition coil.An investigation of the possibility of manufacturing the mounting tool with a 3D-printer is undertaken in cooperation with ÅF, a consultant to Volvo Cars. A literature study is first presented to introduce broader knowledge on the subject.

Reglering av vridbord

This report describes a master thesis performed at Saab in Arboga. The main purpose was to build a controller for a system containing a turn table and an antenna beam. The idea is to use this system on a boat where it will be exposed to position disturbances due to waves. The desired behaviour is that antennas placed on the antenna beam should point towards the same target all the time. To solve this problem the system has been modeled and simulated in Matlab and Simulink.

Utvärdering av ett IR-system i en informationssökningsprocess ett holistiskt perspektiv

The research objective of this thesis was to conduct a holistic evaluation of an operational information system. By holistic evaluation we mean that an equal focus was placed on both the system system perspective and its users user perspective, in the actual environment where the system and its users function contextuality. In addition, the methodological objective of the study was to test a new research approach in a real life setting. The participants of the study were twenty newspaper journalists employed at Göteborgs-Posten GP. The information system NewsLink is a manually indexed full-text database containing all articles published in GP since 1994.

Mätning av abrasivflöde för vattenskärningsmaskiner

The content of the following report is the summarized result of three students thesis at Blekinge Institute of Technology in co-operation with Water Jet Sweden AB. This report will give the reader a description of principles how to measure the abrasive mass flow in a waterjet cutting system. The work began with a visit to Water Jet Sweden AB to get a closer look at the problem. When the analysis of the problem was done the criteria were defined in the form of demands and desires. The main task of the criteria was to guide the search for the solution. The work proceeded with an extensive search for abrasive flow meters along with obtaining information about flow measurement in general. When the search for abrasive flow meters resulted in nothing all the efforts were concentrated on finding a principle of measurement that could cope with the criteria.

Vätedriven förbränningsmotor : Klarläggande av framtida hållbarhet

Today when new and harder demands on CO2 emissions are developed, vehicle manufacturers must work to develop new engine solutions to new kinds of fuels to replace fossil fuels. A fuel that could be applied is hydrogen. When hydrogen is combusted only water vapor occurs. Hydrogen is known to be explosive and flammable. These properties are both good and bad for combustion.

En usabilityutvärdering av Umeå Universitetsbiblioteks OPAC

This is a heuristic evaluation of Umeå university library?s Online Public Access Catalog (OPAC). It makes use of four of Nielsen?s ten heuristics, flexibility and efficiency to use, match between the system and real world, visibility of system status, and aesthetic and minimalist design. The evaluation was done by having 3 evaluators inspect the interface individually, as per Nielsen?s (1990) recommendation of 3-5 evaluators.

Patientens upplevelser av smärta vid venösa bensår och dess påverkan på livet : Patient´s experiences of pain at venous leg ulcer and the effects on their daily life.

Background: Patients with leg ulcer suffers often of woundpain. Healthcare professionals will strive after having knowledge and understanding for how woundpain influences the patient's quality of life. Aim: The aim is to elucidate the patient's experiences of pain at venous leg ulcer and the effects on their daily life. Method: The procedure has been a systematic literature overview with a systematic search in different databases. The search resulted in nine scientific articles.

?Nej, men jag söker väl tills jag hittar?: En studie av discoveryverktyget Summon utifrån ett användarperspektiv.

The purpose of this bachelor?s thesis is to examine how students at Högskolan i Borås experience the web-scale discovery service Summon, based on the theoretical model of ?The Five Dimensions of Usability?, defined by Whitney Quesenbery. The study aims to answer the following research questions: How do the students execute search assignments in the Summon interface? How intuitive and easy to navigate is the system from a user perspective? What are the students? opinions about Summon, regarding usability?Five students with varying information seeking skills are asked to perform search assignments during controlled observation, followed by semi-structured interviews. Our findings are presented in the context of previous research and show correspondence with the results of related studies.

Information, anknytning och stöd till föräldrar med ett nyfött barn med diagnosen Downs syndrom : - litteraturstudie

The birth of a child marks a new era for the parents. It is the beginning of something that will never end, because they will always be the child´s parents. This study investigates what happens when an infant is born whit Downs syndrome (Ds), and thus does not resemble the child the parents had expected. The purpose of this literature study was to describe the information and the support that the parents of a newborn child with Ds think that they need. The literature search was made in the database of Medline (via Pub Med), Academic Search Elite and manual search.

Familjelycka? : En litteraturstudie om föräldrars upplevelser av Postnatal depression.

Postnatal depression (PND) is a condition which affects about 8-15% of recent parents. The cause of PND is unknown but several underlying factors have been purposed through different studies. This descriptive literature review aims to illuminate the parent?s situation when the mother is affected with PND. In search of literature, the databases Medline (via PubMed), Academic Search Elite, Cinahl, PsycINFO, PsycARTICLES and SweMed+ were used.

Bemötande av självskadebeteende ur omvårdnadspersonalens perspektiv : En litteraturstudie.

Background: Patients with self-harm seek hospital care when something traumatic occurred. Self-harm was a way to cure pain and was expressed overdose, cutting, or by swallowing objects. They described that the staff were derisive, didn?t show empathy and engagement. Aim: The aim was to describe factors that effects staffs answer to self-harm behaviour through their perspective.

Vem är du? : En studie om etnicitet och positionering på den svenska arbetsmarknaden.

Research shows that non-european academics are discriminated in the labor market. The purpose of this study is to examine non- European academics narratives about their Job search process. By applying an intersectional approach, this study aims to demonstrate how the interplay of different aspects such as gender, class and etnicity shape the interviewees experience in swedish labour market. A postcolonial perspective is applied in order to contribute to deeper understanding of the discriminating structures that the interviewees deal with.The analysis shows that colonial conceptions are embedded in the validation system and institutions such as employment service. This mechanism affects the interviewees negatively in their Job search process.

En undersökning av Libra IIIs OPAC utifrån två perspektiv

This master thesis is an attempt to study the interface in itself, where the human meets the machine and the problems that can arise. I study a particular interface, namely the OPAC of Libra III. In 1999 IFLA presented recommendations for what an OPAC shall contain, and in one part of my master thesis I compare Libra III with these recommendations from my opinion. In another part of my master thesis I make an investigation where I let five by me chosen persons answer some questions from me, both by doing and verbally. I draw the conclusion that Libra III follows most of the recommendations of IFLA in a sufficient way.

Komvuxstuderandes informationssökning och biblioteksanvändning som redskap i lärandet

The purpose of this Masters thesis is to investigate how students at an upper secondary school for adults use school and public library when searching for information for school assignments. The focus in this investigation is on the feelings and experiences of the process of the information seeking and use. The focus is also on the students experiences of school and public libraries and the help they receive from them in learning. The method used is focus groups interviews. Two groups were interviewed.

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