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Sökning: WFRF:(Johansson V.) > (1990-1994)

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1.
  • Akimov, D., et al. (författare)
  • Physics with WASA and PROMICE
  • 1994
  • Ingår i: Physics with GeV-particle beams, Juelich 1994. ; s. 519-530
  • Konferensbidrag (refereegranskat)
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2.
  • Akselsson, Roland, et al. (författare)
  • Computer-Aided Planning of New Production Lines in Mechanical Industries and of Working Environments for Disabled Persons
  • 1993
  • Ingår i: The 12th International Conference on Production Research,Lappeenranta, Finland,1993-08-16 - 1993-08-20. - Elsevier.
  • Konferensbidrag (refereegranskat)abstract
    • To optimize productivity and working-life quality, it is important to understand and utilise the connections between productivity and working environment. Culture and the state of the market may affect the strength of these connections. However, in order to ensure flexibility and quality in products and services, it may be useful to have motivated, skilled and responsible coworkers at all levels. For the same reasons, absenteeism and high turnover rates have to be avoided. In a time when new technology is rapidly disseminated throughout the world, the way in which human resources are managed may be of the outmost importance to success. A major obstacle to the gathering of experience and knowledge from all relevant parties – e g production engineers, managers, the workforce and external experts – in a planning process is the lack of a common, efficient language. Mistakes made when designing new working environments are often very costly to adjust once the plans are realized. The prize of a poorly-planned environment is high in economical terms, but also in terms of human suffering. This may be especially important for disabled persons. Some basic ideas behind the computer-aided planning methodology currently being developed at the Lund Institute of Technology, and at Lund University, are the following ones: -In a planning process, it is important to draw on the creativity, experience, knowledge and enthusiasm of as many persons as possible. It is particularly essential that the group which is going to manage and apply the planned system finds it acceptable, as this group’s willingness and competence to improve the solution during and after implementation is often crucial. -Time is a resource in short supply, and a planning group including persons with very dissimilar backgrounds in terms of experience and knowledge could be too time-consuming. -Pictures of planned systems may help a heterogeneous group to obtain a common language; they may also provide the members of the group with good mental models as a basis for an efficient dialogue. In this workshop paper we will briefly discuss the computer-aided planning tool and present some of our experiences of its application to the planning of new production lines in mechanical industries and of working environments for the disabled.
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  • Johansson, Ingegerd, et al. (författare)
  • Dental status, diet and cardiovascular risk factors in middle-aged people in northern Sweden.
  • 1994
  • Ingår i: Community Dentistry and Oral Epidemiology. - 0301-5661 .- 1600-0528. ; 22:6, s. 431-436
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>The aim of the present study was to compare the dietary intake and the levels of traditional cardiovascular (CVD) risk factors in edentulous middle-aged individuals and individuals of the same age and sex who still had natural teeth. The study was performed within the framework of the MONICA-project. Population registers were used to sample randomly 1287 men and 1330 women aged 25-64 yr. Data were collected from a mailed questionnaire, blood analyses, registrations of blood pressure and anthropometric measures. The estimated daily energy intake did not differ between the two groups, but edentulous men and women ate more sweet snacks compared to those who still had teeth. Edentulous men also ate less fruits, vegetables and fibre and edentulous women ate more fat than dentates. Edentulous men and women were more obese and had lower serum HDL-cholesterol concentrations than those with remaining teeth. Edentulous women also had significantly higher concentrations of total cholesterol and triglycerides in serum than dentate women. Edentulous men and women were more often regular smokers, but not snuff users, than dentates of the same age and sex. Thus, the presence of two or more cardiovascular risk factors was more common in edentulous individuals than in those who still had natural teeth. In summary, these results support the hypothesis that edentulous middle-aged individuals have a more unfavourable risk factor profile for CVD. Counselling on balanced dietary habits and non-smoking given by dental personnel to orally diseased patients--recommendations given to improve resistance to dental caries or periodontitis--might therefore improve general health and possibly also improve risk factors for CVD.</p>
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9.
  • Löfdahl, Lennart, 1948-, et al. (författare)
  • Influence of Different Sensor Configurations on the Turbulent Quantities in a Complex Three-Dimensional Flow Field
  • 1993
  • Ingår i: ASME-Fluid Engineering Conference, Washington DC.
  • Konferensbidrag (refereegranskat)abstract
    • Measurements of the Reynolds stress tensor have been carried out in a complex three-dimensional boundary layer using different techniques. Single-, cross- and three-hot-wire probes were employed together with a silicon based double chip sensor. All measurements were performed at a Reynolds number of 1.2 x ___ per meter. The turbulent stresses were determined at a reference position in a two-dimensional part of the flow field and at three locations with different strength of the three-dimensionality. A good agreement was found in the turbulent quantities measured with the different methods, however, the influence of prong interference, measuring volumes and velocity gradients were noted.
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