The aim of this study was to investigate which situations haemodialysis patients consider as the hardest for avoiding fluid intake. The data collection was performed with a questionnaire which was distributed to haemodialysis patients who fulfilled the inclusioncriteria. Of 158 haemodialysis patients 103 haemodialysis patients chose to participate in the study. The participants were chosen from different dialysis centres (n=12) in north and south of sweden, excluding the middle of Sweden. The questionnaire that was given out consisted of 32 situations, the response format included nine alternatives, that included different kind of difficultes.

The primary function of a mixer is to keep a fluid in constant motion. All mixing applicationsrequire varying degrees of small-scale turbulence and bulk flow. The performance of asubmersible mixer is measured by the thrust that it produces, while the strength of the bulkflow is dependent on the total amount of installed thrust.In a mixer, the fluid quickly flows past the propeller, and as a result, the current is mainlyaxial. The fluid will also obtain a rotating velocity, or a swirl, though this is significantly lessthan that of the propeller. During the process, the total amount of energy increases in the formof static pressure and kinetic energy.

We derive the equation linking the Weyl tensor with its Lanczos potential, called the Weyl-Lanczos equation, in 1+3 covariant formalism for perfect fluid Bianchi type I spacetime and find an explicit expression for a Lanczos potential of the Weyl tensor in these spacetimes. To achieve this, we first need to derive the covariant decomposition of the Lanczos potential in this formalism. We also study an example by Novello and Velloso and derive their Lanczos potential in shear-free, irrotational perfect fluid spacetimes from a particular ansatz in 1+3 covariant formalism. The existence of the Lanczos potential is in some ways analogous to the vector potential in electromagnetic theory. Therefore, we also derive the electromagnetic potential equation in 1+3 covariant formalism for a general spacetime.

As the speed and complexity of computers have increased so have software and the expectations of users. Software development follows a straightforward evolution where complicated tasks are made easier by better tools; this repeats itself as those tasks in turn are automated.Software mechanics that were seen as revolutionary a decade ago are seen as obvious requirements that no multimedia application can be without.dotNet is the next step in line and makes it easier and faster to build software.This report focuses on the development of a multimedia platform developed in dotNet. It does this by developing the tools and framework from which a complete game can be built.A game is selected because it combines the most aspects of multimedia development, such as interaction, graphics, sound & music. The report goes further by describing why the game looks like it does as well as the mechanics of the game and the benefits of the dotNet platform..

Glycerol is essential for the lipid metabolism of both plants and animals. Glycerol is formed in the rumen by hydrolysis of lipids from the feed. Glycerol is also a by-product from the production of biodiesel from rapeseed oil and other fat sources. Glycerol might be used as a dietary glucose precursor for dairy cows in similar ways as propylene glycol. Due to increased production of biodiesel more glycerol has been available to a lower price.

Do ceramics have to be static? This was the question that spurred me into this work, and what kept me working on to achieve the possibility of motion in my ceramic objects. By combining the knowledge gained through my former education as an avionics technician with my interest in the ancient ceramic craft, I strive to create kinetic ceramic handicraft suitable for interaction with an audience.By a series of different phases I slowly go from understanding what kind of motion I want my objects to have, to actually realizing this motion in three-dimensional objects. Through the use of simple models made from corrugated fiberboard followed by more advanced plaster models, combined with different complementary materials such as bicycle inner-tubing and recycled aluminium cans among many others, I, through a vast series of testing, slowly build up a knowledge base later applied to the ceramic objects.The result is for me a success; I have found a way for me to combine ceramics with mechanics. Through this I have created kinetic ceramic handicraft intended for interaction with an audience..

ABSTRACT The purpose of this medical record research was to study 30 patients with chronic subdural hematoma on a neurosurgical clinic, mapping documented nutritional status, preoperative fasting and hydration and energy supply before surgery. In addition peroperative administration of fluid and vasoactive drugs, as well as postoperative complications and length of hospital stay were studied. The mean age of the patients was 71 years. Nutritional status was evaluated in 12 patients, out of these seven were judged to be at risk for under nutrition. Fifteen patients had surgery day 1 (total fasting time on average m 11 h), eleven had surgery day 2(29 h), three had surgery day 3 (35 h).

This essay examines computer and video games and their capacity of being useful in teaching sessions. Focus is being put at a possible pedagogical potential and how it is being expressed in games mechanics. To get answers on these subjects? studies by Professor James Paul Gee and Jesse Schell is used together in creating a model for analysis. With this model together with a narrative analysis this essay hopes to give clarifications on if a pedagogical potential is present and if so, how it is being expressed.Studies in this paper shows that a pedagogical potential is overall present in used material.

Scania Top Team is a competition where the best mechanics in the world are competing against each other. In 2011, the world final was recorded and this material is now used to see which problem solving strategies these top of the line teams are using to solve the realistic problems assembled in front of them. To help them, the mechanics are allowed to use two of Scanias IT-systems: Scania Multi and Scania Diagnose and Programmer 3. This report consists of two parts. The first part is the development of a method to analyze the recorded material.

I denna uppsats underso?ker vi hur principer fo?r spelmekanik pa?verkar anva?ndares bena?genhet att bidra med inneha?ll pa? interaktiva webbplatser. Genom en empirisk studie av kvalitativ art ja?mfo?r vi tva? versioner av en testsajt, med spelmekanik implementerat i den ena versionen. Vi kommer fram till att spelmekanik fo?r att motivera anva?ndare att skapa inneha?ll kan designas utefter tre huvudsakliga delar; regler/struktur, ma?l och delma?l samt vinster. Regler och struktur a?r vad som a?r mo?jligt eller tilla?tet att producera samt kvalitetskrav pa? inneha?llet.

Denna rapport behandlar stoftproblematiken i stränggjutningshallen på SSAB Tunnplåt AB i Luleå. Besvärande stoftkoncentrationer i luften har länge varit ett problem för personalen. Syftet med detta examensarbete var att beskriva den nuvarande situationen samt att kartlägga luftflöden med hjälp av CFD (Computational Fluid Dynamics). Även experimentella metoder ingick som en del i arbetet. I ett inledande skede intervjuades personalen för att författarna skulle få ta del av deras förslag och erfarenheter.

The purpose of this study was to examine and evaluate an assembly station at Kalmar Industries in respect to ergonomics. The study was to result in an improved assembly station with lower risk of work- related injuries. It was the study group?s expectation that the measures taken at the assembly station can function as guidance and an inspiration for other ergonomic improvements at the company. Several goals related to the purpose were established as guidance for the study.The mechanic?s work situation was mapped through a series of methods.

The dissertation were performed on SP, Technical Institute of Sweden. The dissertation were carried out on the measurement technical department, this dissertation is a part of a bigger project, project ClampCal. One of SP?s returning assignments are flow-measurement. When flow-measurement is performed, the flow has to be stopped so that a meter can be installed in the pipes where measurement is going to take place. At every stop there is time delay in the flow which causes the customers to loose money. This is why SP wanted to find a better solution so that measurement can be done without any stops in the flow. Usage of a so-called Clamp-on meter was considered, but since the measurement uncertainty is too large it takes some investigation on the parts where the largest uncertainties occur and thus find a solution that can diminish the uncertainty as much as possible. The parts that were considered to have an opportunity to reduce measurement uncertainties were the fluid temperature, its characteristics and the pipe geometry and its characteristics. For the fluid temperature a Pt100-sensor with four different radii for various pipes was used.

Fluids are important to the Visual Effects Industry but extremely hard to control and simulate because of the complexity of the governing equations. Fluid solvers can be divided into two categories, those of the Eulerian point of reference and those of the Lagrangian. Both categories have different advantages and weaknesses and hybrid methods are popular. This thesis examines Smoothed Particle Hydrodynamics, a Lagrangian method for physically based uid simulations. To allow the artist the exibility given by shorter simulation times and increased number of iterations, the performance of the solver is key.

The aim of this study was to investigate the effects of an infusion of hypertonic saline solution (HSS) in combination with an oral waterload on cows suffering from rightsided displacement of the abomasum (RDA). Six dairy cows were treated with 7,2% HSS in a dosis of 5 ml per kg bodyweight. They also received an oral waterload of approximately 15 liters. To monitor changes in fluid-, acid-base- and electrolyte-balance, bloodsamples were collected during the next 24 hours. During this period, the cows also underwent surgery to empty and correct the position of the abomasum.