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1147 Uppsatser om Light intensity - Sida 6 av 77
Upplevd trafiksäkerhet med mittbarriär
AbstractThis report intends through a case study to investigate if lightweight concrete isappropriate as main material in the outer wall of a seven storey residential building.A technical design is carried out in accordance with the definitions and requirementsfor passive houses, given by FEBY?s1 ?Demand specification for passive houses?.A literature review is also carried out for a comparison between regular bolt wall andlight weight concrete wall, with a focus on the safety of moisture.The lightweight concrete block used in the report is as a celblock produced by thecompany H+H Sweden AB.The methods used have resulted in compliance with requirements andrecommendations from authorities. Calculations of energy, noise and moisture riskassessment has been carried out.The work has resulted in the conclusion that the lightweight concrete itself is notable to isolate in the extent necessary to obtain chosen U-value of 0,1 W/m2 ° C,without getting to thick. Therefore additional insulation is needed. There are fewrelevant reference objects built with only light weight concrete.
Gångvägsljus :
Discussing light and lighting in the night-time environment of Tensta, a Stockholm suburb built between 1962 and 1970, this thesis suggests that lighting should be designed for the outdoor environment as a whole. The feeling of safety and human perception are important components in this thesis.
Starting with some comments on visual perception and how we adapt our sight to an interval of the visual input we get, makes it possible to understand that more light sometimes hides, rather than reveals, things. Amongst the dispersed houses, in the green parks of Tensta, this turns the pedestrian roads, lit by pole-top-mounted fixtures, into light tunnels in a dark surrounding.
Talking about the feeling of safety I am inspired by, amongst others K. Lynch, B. Hjort and J.
Belysning för barn i biblioteksmiljö
The purpose of this thesis is to create conditions in order to plan lighting to a library room after children's needs and wishes, and to gain deeper knowledge about how children experience different lighting environments and what they perceive as good lighting. I was given the task by Huskvarna library to design a lighting plan for their children's department. This is part of the project "Library 2.1-room as a medium" that is going on at Huskvarna library since fall 2007. My questions at issue are: 1. What do children consider as good lighting in a library? 2.
Introduktion av buskskikt i ungskogar
Young stands in urban forests often lack a shrub layer, though shrubs play an important structural and biological role in forests. All layers interact with one another to form a multilayered stand, in which shrubs have a vital role.In this diploma thesis, theoretical models for forest dynamics are compared with four reference stands to detect factors, and principals for introduction of shrubs in young stands. In these stands four different ways of introduction were found. In one trees and shrubs were planted together at the same time. Shrubs spontaneous spread under a canopy of mature forest, in another.
Jakten på värde: ? En kvantitativ studie om upplevt kundvärde och nöjdhet vid bostadsrättsköp i Stockholms innerstad
This Master Thesis within Marketing and Strategy investigates the values customers perceive within the Real Estate market in the inner City of Stockholm. The dependent variable is customer satisfaction, and it could be explained by 1) the feeling of light and uniqueness of the apartment, 2) that the apartment is of a satisfying size, 3) the address of the apartment, 4) and the economics, the common areas of the building, and the bidding process. The feeling of light and uniqueness, combined with the number of square meters, and the monthly fee of the apartment, are also identified as the price driven functions of this market. A quantitative method is used to investigate the market, where 107 apartment buyers completed a survey..
MOTIVERANDE SAMTAL I V?RDEN AV PATIENTER MED OBESITAS OCH ?VERVIKT I SYFTE ATT ST?DJA VIKTNEDG?GN - EN LITTERATURSTUDIE
Background: Obesity has expanded to a nationwide issue that affects millions of people. The
healthcare system struggles to handle the epidemic as the problem grows. Studies show that
healthcare workers have negative attitudes toward obese and overweight people and that they
lack knowledge and proper tools to support this patient group. Motivational interviewing
(MI) is a known technique for initiating lifestyle changes with patients.
Aim: The aim is to evaluate the effectiveness of MI as a tool for weight loss and sustainable
lifestyle changes for people with obesity and overweight.
Method: This study uses a literature review methodology with a systematic perspective. Data
is gathered and analyzed to investigate how MI affects weight loss.
Akustisk mätning av U-värde
This pre-study investigates the possibility of U-value measurements through an acoustic method. A hypothesis about an acoustic model built on acoustic theories combined with U-value theories is presented to answer the questions:
? Can U-value theory be combined with acoustic theories?
? Can the coefficient of heat be affirmed trough an acoustic measurement?
The idea for this dissertation begun with a logical idea in mathematical similarity, between the coefficient of heat transmission units and sound intensity units.
The U-value theory is based on assumptions such as initial resistance for inner walls and initial resistance for outer walls. The resistance in the material is interpreted through sound intensity theory.
The argument is built upon mass law theory, which means if the frequency or thickness of the material layer doubles it implies an increase of sound reduction by 6 dB.
Studie av subsynkron interaktion (SSTI) mellan ett HVDC system med spänningsstyva strömriktare och en närliggande generator
Syftet med examensarbetet är att studera den subsynkrona interaktionen (subsynchronous torsional interaktion, SSTI) mellan ett HVDC system med spänningsstyva strömriktare och en närliggande generator. Studien utförs med hjälp av datorsimuleringar och fokuserar på att studera dämpkaraktäristiken för SSTI. Studien ska visa hur faktorer såsom den överförda effektens storlek och riktning, vald driftmod och kraftsystemets kortslutningseffekt påverkar dämpkaraktäristiken. Rapporten beskriver subsynkron oscillation (SSO) och tillvägagångssättet vid en SSTI undersökning. En kort introduktion till HVDC Light ges.
Elevers förståelse av fotosyntesen och dess koppling till andra organismer
The effects of the deregulation of the electricity market 1996 in Sweden on short-term hydropower regulation are unknown. This report investigates patterns in subdaily regulation in the Ångerman River Basin during the period 1993-2011. Differences in subdaily flows and zero flow events between the periods 1993-1995 and 1996-2011 were studied by analyzing hourly data from 8 regulated and 8 unregulated locations with four subdaily flow variation indices. No correlations between the market deregulation and the regulation intensity in the Ångerman River basin were detected. The number of days natural ranges of variability were exceeded and the magnitude of subdaily variation were significantly higher at regulated locations.
Synergonomi och arbetsbelysning för sjuksköterskor inom avancerad hemsjukvård
The main aim of this master thesis was to examine the visual ergonomics and the systematic work environment management concerning lighting issues for nurses within domiciliary care. Further aims were to examine a few existing lighting solutions, to come up with ideas for future possible lighting solutions, and to evaluate if the legal regulations for lighting is satisfying and if the regulations are obeyed in domiciliary nursing.The methods used were a questionnaire completed by 55 nurses, field studies of used lightings in cooperation with a student in industrial esign, test of ten existing lighting solutions in a laboratory environment, and a field test of five existing lighting solutions tested by nine nurses in the home of the patient.The result indicates that 40 % of the asked nurses were dissatisfied with the working light in the patient?s homes. All respondents reported poor working light close to the patient, 50 % reported that this problem occurred daily. One third reported that they had to work in uncomfortable working postures due to insufficient working light, and 15 % reported risk of making mistakes due to the same reason.
Social and economic consequences of wolf (Canis lupus) establishments in Sweden
Wildlife contributes with many benefits to humans but also brings economic costs. From being eradicated in Scandinavia the grey wolf (Canis lupus) is returning to South-Western Sweden and people are not used to its presence. In Scandinavia carnivores have to co-occur with humans in a landscape used for many different interests. Consequences of wolf establishments are e.g. competition for moose, depredation on sheep and attacks on hunting dogs.
Buskröjning längs skogsbilvägar : en produktivitetsstudie av två kättingslagor
To regularly remove woody vegetation along the roadside of forest roads is an important part of the road maintenance, since the vegetation binds moisture in the road side and, thus, the removal makes the road drying faster with results in improved bearing capacity. Vegetation removal also makes it easier to upgrade the road by material recycling from the ditch and, moreover, the visibility along the road is maintained.The aim of the study was to evaluate what type of chain flail is the best and most cost-effective for removal of different kind of woody vegetation along forest roadsides.Time studies were made on two chain flails when removing woody vegetation in three different classes; easy-, middle- and heavy shrub removal. The studied flails were one light and rather simple flail named Optimal M160 and a heavier and more advanced flail named Slagkraft H210. The removal was made according to Holmen Skogs? specification and the quality of the cleaning was measured by objective belt inventory.The productivity was higher with the heavy flail within all cleaning classes.
Twig ceiling. Emotionell design i sjukhusmiljö - ur ett barnperspektiv
To be examined in hospitals can sometimes be perceived aspainful by children. Therefore there is a need for something,which can distract children?s attention from their perceivedpain. During my graduation project, I discovered a designopportunity to work with suspended ceiling systems inexamination rooms, as there is not much to look at whilebeing examined.The result, Twig Ceiling is an interactive nature-inspiredbacklit module with colored LEDs. Twig Ceiling has onelayer of pattern that is visible when the module is not litand the second layer of pattern appears when turning onthe light.
Skattning av prognostiska faktorer för gradering av smärtans komplexitet hos patienter i behov av multimodal smärtrehabilitering inom två vårdnivåer.
AbstractPURPOSE: The aim of this study was to describe and compare possible differences regarding selected prognostic factors for disability between patients with non-specific chronic pain who were about to start a multidisciplinary treatment program (MMR), either within primary care (MMR1) or hospital care (MMR2).METHODS: The study had a descriptive and comparative cross sectional design. Eighty-nine patients were recruited consecutively when they were about to start their team treatment (50 in MMR1,39 in MMR2). The measurements were; Evaluation of self-reported self-efficacy for eight daily activities (STIVA-8), The Pain Belief Screening Instrument (PBSI) and Hospital Anxiety and Depression Scale (HADS).RESULTS: The study found some significant differences between the answers from patients in MMR1 and those from patients in MMR2. For instance, patients in MMR2 estimated lower self-efficacy according to STIVA-8 than patients in MMR1. Also, there were fewer low risk patients and more high risk patients in MMR2 than in MMR1 regarding pain intensity according to PBSI.
Konstruktion och design av två glassförpackningar i kartongkvaliteten Frövi Light
This degree project was made in cooperation with AssiDomän Frövi and Charlotte Andersson and the main objectivehas been to create to ice cream pacbges from 250 gsm Frövi Light board. The paekages are intended to be easilyresealable while decreasing in size together with the ice cream. The project also describes the food packaging labelsand symbols currently present in the European common market.Both capsules utilize a separate lid for resealing. One of the paekages (Capsuie A) is indended to be cut along withthe ice cream and thereby decrease in size. The other one (Capsuie B) uses a series of flaps for contracting and expandingwhich enab1es adjusting of the size without cutting the package up.The design for Capsuie A is created both as a series of flavours with a super-hero theme intended for children andwith a colfee flavour for a maturer audience.