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Showing result 1 - 5 of 8 essays matching the above criteria.

  1. 1. Reaction Mechanism between Chitosan and Cerium(VI) Ammonium Nitrate for Production of a Greener Poly(Vinyl Acetate) Adhesive

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Mårten Schollin; [2021]
    Keywords : Chitosan; Poly vinyl acetate ; Cerium IV ammonium nitrate ; Grafting; Reaction mechanism;

    Abstract : Poly(vinyl acetate) (PVAc) has a major application as an indoor wood adhesive. Low water stability is however, one of the greatest drawbacks of PVAc. By grafting PVAc from a chitosan (CS) backbone (CS-graft- PVAc) water stability of adhesive is increased while good mechanical and adhesive properties are retained. READ MORE

  3. 2. Olika oorganiska kvävekällors effekt på blåbärsplantors tillväxt

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Ella Lynander; [2021]
    Keywords : kväve; ammonium; nitrat; saltstress; ledningstal; blåbär; vaccinium; tillväxt; nitrogen; ammonium; nitrate; salt stress; conductivity; blueberry; growth;

    Abstract : Blåbärsproduktion har ökat i Sverige under 2010-talet, och av de många olika arter av blåbär som finns är det främst Vaccinium corymbosum som odlas. Odlingen kräver näringstillförsel, där kvävet har en viktig roll att spela. READ MORE

  4. 3. Dissolution rates of mineral nitrogen fertilisers : effects of moisture and precipitation

    University essay from SLU/Dept. of Soil and Environment

    Author : Christian Sigtryggsson; [2018]
    Keywords : hygroscopicity; deliquescence; fertilisers; calcium nitrate; ammonium nitrate; dissolution rates; rain simulation; enthalpy; precision fertilisation;

    Abstract : Hygroscopicity and deliquescence refer to the ability of a solid to absorb air moisture in which it dissolves and have long been recognised as properties having negative impacts on the product quality of explosives, pharmaceuticals, and fertilisers. Contrastingly, this thesis reconsiders and reappraises the hygroscopic effects of common mineral fertilisers, proposing hygroscopicity to beneficially enable quick dissolution under humid air conditions in absence of precipitation. READ MORE

  5. 4. The effect of different nitrogen sources on mycelial growth of oyster mushroom, Pleurotus ostreatus : with a review concerning cultivation of the species

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Astrid Laursen; [2018]
    Keywords : oyster mushroom; pleurotus ostreatus; ostronskivling; cultivation; odling; strains; spawn; mycelial growth; thickness; Nitrogen source; kvävekällor; nutrients; näring; defined medium;

    Abstract : The production of Oyster mushroom, Pleurotus ostreatus, is sustainable, both in terms of economy and environment. Cultivation can be performed successfully on a wide range of substrates, often in the form of otherwise non-productive waste from other industries, such as agriculture and forest production. READ MORE

  6. 5. Effekt av olika kvävegödselmedel på utvecklingen av klumprotsjuka i salladskål (Brassica rapa ssp. pekinensis)

    University essay from SLU/Dept. of Soil and Environment

    Author : Mikael Nilsson; [2014]
    Keywords : klumprotsjuka; kväve; nitrat; ammoniumnitrat; urea; pH;

    Abstract : The price trend on rapeseed the latest years has led to an increasing interest to grow the crop among many farmers in Sweden. The price trend has resulted in more than a doubling of the oilseed area since the early 2000s. READ MORE