This essay focuses on strategies for acquisitions in Swedish publiclibraries. The topic has been occuring in the public debate off andon since the70s. The dominant view has been that librarians haveallowed demand direct the purchases of media and thus haveignored quality literature.This debate has caused me to reflect on the librarians constantdilemma when purchasing media. Are they supposed to chooseliterature that are in demand, or should an evaluation made bylibrarians be the decisive?The previous research has shown that the library profession istraditionally characterized by a non-judgmental approach.

Xylem Water Solutions AB är en stor del av Xylem Inc. som har totalt ca 12000 anställda i hela världen, Xylem Water Solutions AB huvudkontor i Sundbyberg har ca 400 anställda och ca 50 servrar i en serverhall. Målet med examensarbetet är att som projektledare utföra en förstudie, planera samt genomföra ett switchbyte i en blandad klient och servermiljö med flera huvudmål: Att minska befintlig offertkostnad, minska det dagliga underhållet, se till att de nätverkskopplingar som används verkligen används, säkra upp redundans för både server- och klientnätverkskopplingarna, se till att dagens och framtidens krav för klientsidan samt serverhallen uppfylls på huvudkontoret för Xylem Water Solutions AB i Sundbyberg.Under projektets gång formades en plan och den följdes sedan till att byta från Nortelprodukter till ett nytt, stabilt nätverk uppbyggt av Ciscoprodukter, Nexus 5548P och 2248 för core/serveraccess-switchar och Catalyst C2960S-switchar för klientaccess..

Vattendirektivets (2000/60/EG) krav på skydd och bevarande av vattenkvalitet i vattenförekomster har kraftigt ökat medvetenheten om vattenhänsyn och vattenvård i det svenska skogsbruket. Världsnaturfonden lanserade hösten 2011 tillsammans med skogsägarföreningarna (Södra skogsägarna, Mellanskog, Norrskog och Norra skogsägarna) vattenhänsynsverktygen NPK+ (Naturvärde, Påverkan, Känslighet och Plusvärde) och blå målklassning som hjälpmedel till skogsägare för att ta och synliggöra vattenhänsynen. Relevansen hos verktygen NPK+ och blå målklassning att identifiera och klassificera vattendrag efter vattenkvalitet undersöktes med antalet fiskarter som indikator på vattenkvaliteten. 55 vattendrag i Krycklanåns avrinningsområde strax utanför Vindeln i Västerbottens inland inventerades med NPK+ och blå målklassning i mitten av september 2011. Fältinventeringsdata analyserades statistiskt med fiskartsförekomst från en tidigare elfiskeinventering i vattendragen.

Cultural objects may become wet by deliberate water cleaning, water disaster or watersoaked for other reasons. Air drying textile objects and even other organic materials from awater wet state, involves many problems depending on the strong capillarity action of water.Damages and changes such as bleeding of dyes, stains or lines of impurities from watermovement, shrinking or stiffness can occur. Freeze-drying as an alternative drying methodhas often been used for wet archaeological and marine objects, but more seldom for historicalmaterials.This bachelor thesis addresses the issue of whether freeze-drying can be an alternative controlleddrying method for historic costumes. Costumes and related objects are often compositeobjects, consisting of multiple materials, as well as being three dimensional, all of whichwill complicate drying. The purpose of this study was to investigate whether it is possible tohandle costume objects after wet cleaning for drying by freeze-drying, and if damages due tosurface tension of water, can be avoided in this way.

Detta examensarbete har haft till syfte att åskådliggöra eventuella skillnader och/eller likheter i den upplevda användbarheten vid användandet av en webbplats skapad via mobile first design och desktop first design. Målsättningen med examensarbetet har varit att ta fram en hifi-prototyp, skapad utifrån mobile first design, som visualiserade ett designförslag för flygfotoföretaget HimlaFotos startsida. Jämförelsen har utgått ifrån en egendefinierad version av begreppet användbarhet baserad på ISO:s definition, där användbarhet består av tre faktorer; kraftfullhet, effektivitet och tillfredställelse. För att samla in data om den upplevda användbarheten har användartester genomförts. Flera likheter har identifierats gällande användbarhetsmåtten kraftfullhet och effektivitet, medan skillnader har funnits vid måttet för tillfredställelse.

Storm water is defined as runoff from precipitation such as rain or snow. It is collected in sewage disposal systems and since it mainly originates from urban areas it can contain high levels of heavy metals, nutrients and oil etc. Polluted storm water is currently treated by different methods such as wet ponds, constructed wetlands and filter strips. This study investigates these methods, which in earlier studies have shown to give varying results regarding their treatment efficiency.This thesis has been written on commission of SWECO VIAK and was aimed at studying those parameters that may affect the treatment efficiency of nutrients and heavy metals in storm water treatment facilities (STF:s). Through literature studies the dominating treatment processes in ponds and wetlands were examined.

The task was to design and manufacture a submersible displacement pump working with the wobble plate principle. The main task for the Wobble plate pump is to be used as a sewage pump for smaller households or dewatering pump in environments where small flows and high pressures are acquired. For these purposes ITT Flygt sell a screw pump, PC-Grinder 3068. The hydraulic part of the PC-Grinder is manufactured by a subcontractor. Therefore ITT Flygt wants to evaluate an alternative to their screwpump PC-Grinder, which can be entirely manufactured by them self.

This thesis describes a conceptual design of a support frame for a synchronousgenerator used in a vertical axis wind power plant. In this system the generator isplaced on ground level. The thesis also considers the design of housing for thesupport frame and generator. The concept presented in this report is based on anearlier design. Besides geometric design, simplified simulations has been run in orderto optimize some of the parts included in the construction considering naturalfrequencies and structural strength.The result is presented as CAD-models andan assembly drawing..

Large amounts of phosphorus (P) are lost from the arable land due to water erosion. Both phosphorus attached to particles and dissolved phosphorus (mainly phosphate) are transported away with drainage-water and surface runoff. Good soil structure is important in minimizing these losses. In this study, soils from 50 fields were analysed with respect to aggregate stability as measured by dispersion of clay together with the content of total phosphorus (TotP), particulate phosphorus (PP) and phosphate phosphorus (PO4P) in the water phase. All soils were clay soils with clay content varying between 21 and 54%.

AbstractThis thesis is the final part of the Innovation and Design Engineering Programme (180 ECTS credits)at the Faculty of Health, Nature and Engineering Science at Karlstad University. The extent of thisthesis is 22.5 ECTS credits and has been performed independently by Hannes Jernberg during thespring of 2013. Metso Paper Karlstad AB is the task maker of this project, and Arvid Johansson is thecompany Representative. Metso Paper Karlstad AB is one of the world leading developer andmanufacturer of tissue paper machines.In the current situation, the company has developed and patented a power management systembased on a Cross Flow Turbine. The current construction is limited to a paper width of 2.9 meters.The company wants to take advantage of all the opportunities provided by the patents, to develop aturbine solution paper machine with a paper width that is wider than 5.5 meters, and give the abilityto manufacture paper for lower energy consumption which is an important part of the production asit is very energy intensive.Problems arise with the increasing length of the turbine, ultimately resulting in that the deflectionbecomes too big and that the momentums, due to the increased torque the turbine blades breaks.By applying the design process, this work has resulted in a number of potential solutions to theproblem.

In October 2010 it was discovered that leach water had been released from a waste deposit directly into a ditch during a period from March until October 2010. The river Dalhemsån runs close to the waste deposit, just about 10 meters from the ditch. By studying the benthic fauna it was discovered that the environmental status of Dalhemsån is bad in this part of the river, but the discharges of leachate from the waste deposit does not seem to have deteriorated the water further since May 2010..

The river Göta Älv reaches between Vänern and Gothenburg and is the main raw water source for Gothenburg that supplies about 700 000 people with water. To protect and maintain a high water quality, continuously samples and water analyses are made throughout the river. In 1998 a protection area was founded between surte and Lärjeholm where the raw water intake is. This was made to increase the awareness of the importance to protect the water. However, there is a lot of contribution of untreated stormwater to Göta Älv within the protection area.Göteborg Water and Sewage Works commissioned this thesis where two areas, Tagene industrial area and Kärra residential area, with untreated stormwater outlets within the protection area are studied.

This study investigated potato growing in beds as an alternative to conventional ridges.It was based on results from field trials on bed-grown potatoes carried out by Halland Rural Economy and Agricultural Society in 2007, studies of literature and interviews with farmers with experience of bed growing of potatoes. Due to their shallow root system, potatoes are one of the most drought-sensitive crops. Potatoes are often grown on sandy soils with poor water-holding capacity. Factors such as total yield, tuber size distribution and quality defects are negatively affected when water becomes insufficient. Wide beds have a more flat top which leads to more uniform water infiltration. Further on, beds have lower soil surface area due to its shape, and therefore, retain water more efficient. In the field trials, which were carried out at the Stjärnarp Estate near Halmstad, potatoes were grown in beds alongside a conventional ridge-grown crop.

This thesis considers the use of an oldrock cavern as thermal energy storage.With a large system of differentchillers a model was created to find anappropriate future system. There aremainly two trajectories to take. Eitheran installation of chillers needs to bemade or the rock cavern can be used tomeet the future demand of districtcooling in Solna, Sweden. Additionallythis thesis investigates the possibleuse of different techniques to utilizethe phase change energy of water.Simulation shows that it?s possible toutilize the phase-change energy of afluid; however it?s not economicallyfeasible due to the thermodynamiceffects on the Carnot cycle.

Bath has been a part of human history for a long time. Today bathing/swimming inmunicipal pools is for people of all ages and it is possible to take swimming courses,exercise or enjoy recreation. The municipal indoor pool of Hogdalen in Sweden wasbuild in the sixties and has had problems with high levels of heterotrophic bacteria. Thefacility has two larger pools, one adventure park for young kids, two smaller bath tubsand a jacuzzi. To improve water quality UV light and coal filter were installed inOctober 2009 to the already existing purification system.