Sökning: "positive solutions"

Visar resultat 1 - 5 av 219 avhandlingar innehållade orden positive solutions.

  1. 1. Counting solutions to Diophantine equations

    Författare :Oscar Marmon; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Integral points; rational points; counting function; exponential sums; Weyl differencing; van der Corput s method; determinant method; sum of k-th powers; counting function;

    Sammanfattning : This thesis presents various results concerning the density of rational and integral points on algebraic varieties. These results are proven with methods from analytic number theory as well as algebraic geometry. LÄS MER

  3. 2. Fri från narkotika : om kvinnor och män som har varit narkotikamissbrukare

    Författare :Arne Kristiansen; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; drug abuse; addiction; life histories; life-style; identity; existential meaning-creating processes; gender; social change; social support; social work; recovery; solutions;

    Sammanfattning : The two aims of the study are to describe and analyse: i) how drug abusers have transformed their lives from the time when they did not use drugs, to becoming drug abusers, and finally leaving drugs behind them; and ii) what it means to be socially integrated with one's experience of having been a drug abuser. The study builds on qualitative research interviews with seven women and seven men. LÄS MER

  4. 3. Coarse-Grained Models of Ionic Solutions

    Författare :Ryan Szparaga; Beräkningskemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Monte Carlo; Classical Density Functional Theory; Coarse-Grained Models; Ionic Liquids; Prewetting; Capillary Condensation; Electric Double Layer; Differential Capacitance.;

    Sammanfattning : Room-temperature ionic liquids (RTILs) are compounds composed entirely of ions, which are liquid at temperatures below 100 degrees Celsius. Their high ionic strength and strong coupling make them useful for a number of applications, e.g. as electrolytes in supercapacitors. LÄS MER

  5. 4. Mathematical modelling approach to collective decision-making

    Författare :Natalia Zabzina; Denis Gaidashev; Torbjörn Lundh; Uppsala universitet; []
    Nyckelord :collective behaviour; collective decision-making; communication mechanisms; positive feedback; mathematical modelling; bifurcation phenomena; steady state solutions; symmetry breaking; symmetry restoring; diffusion-limited aggregation; fractal dimension;

    Sammanfattning : In everyday situations individuals make decisions. For example, a tourist usually chooses a crowded or recommended restaurant to have dinner. Perhaps it is an individual decision, but the observed pattern of decision-making is a collective phenomenon. LÄS MER

  7. 5. Information design solutions for automotive displays : focus on HUD

    Författare :Phillip Tretten; Jeff Caird; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Design; Industriell design;

    Sammanfattning : Automotive systems are being developed to increase positive driver experiences and traffic safety. As these new technologies are being adapted into the automotive environment, i.e. safety systems and multimedia applications, are the drivers additionally taking with them nomad devices, i. LÄS MER