Sökning: "highly linear"

Visar resultat 16 - 20 av 455 avhandlingar innehållade orden highly linear.

1. 16. Dynamic characteristics of automobile exhaust system components

   Författare :Thomas Englund; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Correlation; Exhaust system; Experimental investigation; Finite element model; Flexible joint; Modal analysis; Non-linear; Simplified modelling; Structural dynamics; Updating;

   Sammanfattning : Demands on emission control, and low vibration and noise levels have made the design of automobile exhaust systems a much more complex task over the last few decades. This, combined with increasing competition in the automobile industry, has rendered physical prototype testing impractical as the main support for design decisions. LÄS MER

3. 17. System identification of large-scale linear and nonlinear structural dynamicmodels

   Författare :Vahid Yaghoubi Nasrabadi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Finite element model; Surrogate modeling; Bootstrapping; Polynomial chaos expansion; System identification; Exponential integration; Uncertainty quantification;

   Sammanfattning : System identification is a powerful technique to build a model from measurement data by using methods from different fields such as stochastic inference, optimization and linear algebra. It consists of three steps: collecting data, constructing a mathematical model and estimating its parameters. LÄS MER

4. 18. Effects of proteasome inhibitors on chondrogenesis and linear bone growth

   Författare :Emma Eriksson; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Linear bone growth occurs at the growth plate, a thin layer of cartilage between the epiphysis and metaphysis of long bones. In the growth plate, resting/stem-like chondrocytes divide and generate the highly proliferative chondrocytes, which further differentiate into the enlarged hypertrophic form before being substituted by bone, a process called endochondral ossification. LÄS MER

5. 19. Stunted growth in children from fetal life to adolescence : Risk factors, consequences and entry points for prevention - Cohort studies in rural Bangladesh

   Författare :Pernilla Svefors; Katarina Ekholm Selling; Eva-Charlotte Ekström; Torbjörn Lind; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; stunting; linear growth; child health; undernutrition; Bangladesh; cost-effectiveness; data mining; puberty; prenatal interventions; global health; Medicinsk vetenskap; Medical Science;

   Sammanfattning : Stunted growth affects one in four children under the age of five years and comes with great costs for the child and society. With an increased understanding of the long-term consequences of chronic undernutrition the reduction of stunted growth has become an important priority on the global health agenda. LÄS MER

7. 20. Turbine Outlet Guide Vane Flows

   Författare :Johan Hjärne; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spalart-Allmaras model; k-ω SST model; linear cascade; secondary flows; turbine exhaust casing; RSM; k-ε realizable model; turbine rear frame; engine mount bump; tail bearing housing; Outlet guide vane;

   Sammanfattning : New design goals on modern jet engines often leads to more highly loaded turbines with fewer stages in order to save weight and cost. This gives higher swirl angles into the outlet guide vane (OGV), implying a more difficult aerodynamic design. LÄS MER