Essays about: "NRR"

Found 4 essays containing the word NRR.

  1. 1. Mainstream Deammonification process monitoring by bacterial activity tests

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Andrea Carranza Muñoz; [2020]
    Keywords : Ammonia Oxidizing Bacteria AOB ; Anammox; Bacterial activity; Deammonification; Heterotrophic bacteria; IFAS; Mainstream wastewater; Nitrite Oxidizing Bacteria NOB ; Nitrogen Removal.;

    Abstract : Deammonification is a widely used technology for side stream treatment with rich ammonium streams at relatively high temperatures, such as, the reject water coming from dewatering units in treatment of digested sludge and industrial wastewaters. The deammonification process has lower operational costs than conventional systems, consumes less energy, enables the increase of biogas production and it is easy to implement. READ MORE

  3. 2. Fabrication and Evaluation of Perovskite LaCrO3 Nanoparticles as Catalyst for Electrochemical Ammonia Synthesis

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Mathilda Ohrelius; [2019]
    Keywords : nitrogen reduction reaction; electrochemical ammonia synthesis; catalyst; perovskite; LaCrO3; fuel cell; renewable energy; Science General;

    Abstract : As our way of living exploits the resources of the earth and our energy use keeps on increasing, we are now facing a climate crisis never seen before in modern time. To face these consequences and try to ease the harm we need to transform our extraction and use of energy. READ MORE

  4. 3. Sperm morphology in progeny-tested Swedish AI dairy bull sires

    University essay from SLU/Dept. of Clinical Sciences

    Author : Anas Al-Makhzoomi; [2005]
    Keywords : sperm abnormalities; NRR; fertility estimates; SRB; SLB; bull;

    Abstract : Use of bull semen with high levels of sperm abnormalities, reflecting genital dysfunction, is not recommendable to use for AI since it most likely leads to subfertility. If sperm morphology deteriorates with age, it becomes a source of concern when using ageing progeny-tested AI-bull sires. READ MORE

  5. 4. Inverkan av den genetiska defekten Complex Vertebral Malformation på fruktsamheten hos SLB

    University essay from SLU/Dept. of Animal Breeding and Genetics

    Author : Anna Persson; [2003]
    Keywords : CVM; Complex Vertebral Malformation; fruktsamhet; SLB; Holstein; embryologi; dotterfruktsamhet; missbildningar;

    Abstract : Complex Vertebral Malformation (CVM) is an autosomal recessive inherited defect in the Holstein breed. The defect has lead to structurally malformed calves and losses of pregnancies. READ MORE