Sökning: "Carl Johan Jönsson"

Hittade 3 uppsatser innehållade orden Carl Johan Jönsson.

  1. 1. On Special Cases of Dirichlet’s Theorem on Arithmetic Progressions

    Kandidat-uppsats, Lunds universitet/Matematik (naturvetenskapliga fakulteten)

    Författare :Johan Jönsson; [2015]
    Nyckelord :Dirichlet’s Theorem; primes; cyclotomic polynomial; Mathematics and Statistics;

    Sammanfattning : Dirichlet’s theorem regarding existence of infinitely many primes in progressions on the form a, a + n, a + 2n... when (a,n) = 1 is well known and proved by using Dirichlet series. LÄS MER

  3. 2. Sha Jun

    Kandidat-uppsats, Sektionen för ekonomi och teknik (SET)

    Författare :Philip Olsson; Carl-Johan Jönsson; [2007]
    Nyckelord :UV; Ultraviolett; Mögel; Utsäde; Lantbruk; Säd; UVC; UVDI;

    Sammanfattning : The agriculture in Sweden today uses chemical substances to control vermin, weed and diseases. This usage shows through polluted subsoil water and trace elements in the food we eat. There’s a risk that additional symptoms will arise in the future. LÄS MER

  4. 3. Är plöjningsfri jordbearbetning bättre än konventionell plöjning?

    L3-uppsats, SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Författare :Karl-Johan Jönsson; Carl-Anders Lillås; [2004]
    Nyckelord :plöjning; redskap; ogräsbekämpning;

    Sammanfattning : The background of this study is the fact that it nowadays is more common to grow wheat after wheat. Usually we plow every autumn to remove the straw, and we wanted to study the effect of alternative methods to do it. We have done this experiment to answer the question if no tillage is better than conventional plowing. LÄS MER