Sökning: "Per Hallgren"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Per Hallgren.

  1. 1. Aquatic organisms on the pill - effects on different organizational levels

    Författare :Per Hallgren; Enhet akvatisk ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; EDC; EE2; 17α-ethinylestradiol; fish; zooplankton; gastropods; population growth rates; direct and indirect effects; somatic growth; invertebrates;

    Sammanfattning : Communities are composed of organisms that interact with each other and with the non-biological environment. There are also anthropogenic pollutants in the environment that also interact with the organisms. LÄS MER

  2. 2. Decentralized Application Security

    Författare :Per Hallgren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Decentralization; Homomorphic Encryption; Location-Based Services; Privacy;

    Sammanfattning : On the internet today, everything is centralized. For most people, a single commercial entity owns the power to disclose all their personal emails. Most commonly your emails are only disclosed to you and your correspondent, but the power to choose who sees these emails is in fact not yours. LÄS MER

  3. 3. Robust location privacy

    Författare :Per Hallgren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The Internet is in many ways both fascinating and yet also scary. For most people, a single commercial entity owns the power to disclose all their personal emails. Most commonly your emails are only disclosed to you and your correspondent, but the power to choose who sees these emails is in fact not yours. LÄS MER

  4. 4. Developments for the FPGA-Based Digitiser in the PANDA Electromagnetic Calorimeters

    Författare :Markus Preston; Per-Erik Tegnér; Samuel Silverstein; Pawel Marciniewski; Allan Hallgren; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PANDA; calorimeter; FPGA; single event upset; Geant4; Monte Carlo; pile-up; feature extraction; fysik; Physics;

    Sammanfattning : The strong interaction between quarks and gluons is one of the fundamental interactions described by the standard model of particle physics. Systems of quarks bound together by the strong interaction are known as hadrons, of which the proton and the neutron are the most common examples. LÄS MER

  5. 5. En kåhltäppa eij at räkna : köksväxtodlingen i 1700-talets jordbrukssystem

    Författare :Karin Hallgren; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; HUMANIORA; HUMANITIES;

    Sammanfattning : Bönders köksväxtodling är en del av 1700-talets svenska jordbrukssystem som inte har studerats i någon större utsträckning. Det råder därför en osäkerhet kring flera grundläggande frågor, som hur vanligt det var att bönder odlade köksväxter vid den här tiden, hur stora odlingslanden var, var de var belägna, vad som odlades, hur odlingen gick till och vilken inställningen var till odlingen under samtiden. LÄS MER