Sökning: "population reduction"

Visar resultat 1 - 5 av 598 avhandlingar innehållade orden population reduction.

  1. 1. Genomics of population decline

    Författare :Tom van der Valk; Katerina Guschanski; Aylwyn Scally; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; genetic diversity; minimal-invasive samples; population decline; inbreeding; genetic purging; eastern gorillas; Dryas monkey; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Sammanfattning : With human populations forecasted to grow in the next decades, many mammals face increasing anthropogenic threats. The consequential population declines are a precursor to extinctions, as small populations are not only more sensitive to stochastic events, but reduction in population size is generally also followed by a decrease in genetic diversity, which in turn reduces adaptive potential and fitness of the population. LÄS MER

  2. 2. Toward Predictive Maintenance in a Cloud Manufacturing Environment : A population-wide approach

    Författare :Bernard Schmidt; Lihui Wang; Amos H. C. Ng; Fuqing Yuan; Högskolan i Skövde; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; predictive maintenance; condition monitoring; population-wide approach; machine learning; double ball-bar measurement; Production and Automation Engineering; Produktion och automatiseringsteknik;

    Sammanfattning : The research presented in this thesis is focused on improving industrial maintenance by using better decision support that is based on a wider range of input information. The core objective is to research how to integrate information from a population of similar monitored objects. LÄS MER

  3. 3. Injuries are not accidents! : an emergency-department population-based epidemiological study of injuries with special reference to trauma recidivism hip fractures and geriatric falls

    Författare :Fredrik Röding; Ulrica Bergström; Marie Lindkvist; Jack Lysholm; Per Morberg; Olle Svensson; Sari Ponzer; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; injury; population; fractures; contusions; sprains; fall injuries; Orthopaedics; ortopedi;

    Sammanfattning : Injury is a major public health problem. In rich countries fall injures now kill more people than all other injury mechanisms together, because of global ageing and large-scale sustainable injury prevention programs for all other injury mechanisms but falls. LÄS MER

  4. 4. Study of Supersonic Jet Noise Reduction using LES

    Författare :Haukur Hafsteinsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; G3D; Supersonic Jet; PIV; CD-nozzle; CFD; Compressible flow; CAA; Noise Reduction; LES; Flow Control;

    Sammanfattning : Increases in air traffic and denser population around airports have led to stricterregulations on aircraft noise. High noise levels from high-speed aircraft can causehearing damage in pilots and the airfield personnel. The engine is the main sourceof noise of all jet aircraft and is therefore a key component for improvement. LÄS MER

  5. 5. Dimension Reduction and Signal Decomposition for Genotype–Phenotype Relations

    Författare :Rasmus Perby Henningsson; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Bioinformatik; Dimensionsreduktion; Computational mathematics; Bioinformatics; Dimension reduction;

    Sammanfattning : Over the last few decades, DNA sequencing has developed from costing billions of dollars to get the complete sequence of the human genome, to being a routine procedure performed in labs all around the world. This has transformed the field of experimental biology since measurements can be done at a level of detail that was not possible before. LÄS MER