Essays about: "nitric"

Showing result 1 - 5 of 38 essays containing the word nitric.

  1. 1. Quantifying nitrogen oxides and ammonia via frequency modulation in gas sensors

    University essay from Linköpings universitet/Statistik och maskininlärning

    Author : Marcos Freitas Mourao dos Santos; [2021]
    Keywords : Nitrogen oxides; nox; ammonia; sic-fet; PLSR; quantification;

    Abstract : The use of Silicon Carbide Field Effect Transistor (SiC-FET) sensors in cyclic operation is a proven way to quantify different gases. The standard workflow involves extracting shape-defining features such as averages and slopes of the sensor signal. READ MORE

  3. 2. Chromatographic separation of rare earth elements using a novel extractant mixture

    University essay from KTH/Kemiteknik

    Author : Tim Aronsson; [2021]
    Keywords : chromatography; HPLC; rare earth elements; separation; recovery; kromatografi; HPLC; sällsynta jordartsmetaller; separation; återvinning;

    Abstract : Sällsynta jordartsmetaller är en kritisk råvara som står inför viktiga utmaningar gällande utbud och efterfrågan. För att överkomma dessa utmaningar behövs det effektiva separationsmetoder. Den här rapporten studerar separationen av sällsynta jordartsmetaller med extraktionskromatografi. READ MORE

  4. 3. Acid retardation : recovery and recycling of acid and metal

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Cecilia Bood; [2020]
    Keywords : Acid retardation; Ion exchange; Pickling; Stainless steel;

    Abstract : During the production of steel, an oxide scale is formed on the surface and to achieve anadequate quality of the surface the scale needs to be removed. Acid pickling is a surfacetreatment where the oxide scale is removed by acid. READ MORE

  5. 4. Neuroprotective effects of magnesium sulphate evaluated by fluoride resistant acid phosphatase, inorganic phosphate, lactate dehydrogenase and nitric oxide in rats with ischemia

    University essay from Uppsala universitet/Institutionen för kvinnors och barns hälsa

    Author : Maria Dorelis Montero Jimenez; [2020]
    Keywords : Biomarker; Magnesium; Neuroprotection; Respiratory arrest.;

    Abstract : Brain ischemia events are among the first three mortalities causes in the world associated with high treatments costs and in most cases some degree of permanent functional disability, thus it is necessary with new low cost and effective treatments. In the present study the potential neuroprotective effect of magnesium sulphate was evaluated by quantification of ischemic biomarkers: fluoride resistant acid phosphatase (FRAP), inorganic phosphate (Pi), lactate dehydrogenase (LDH) and nitric oxide (NO) in rats with global ischemia. READ MORE

  6. 5. Investigation of the Metal Content in Cress Seedlings fed with increased Concentration of Lead & Iron Solutions

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Nikita Burton; [2020]
    Keywords : Cress; iron; lead; metals; acidified digestion; MP-AES; ICP-MS;

    Abstract : Metals are essential nutrients for plant health, but not all metals are necessary and can sometimes be harmful towards plants depending on factors such as species, elemental composition in the soil and concentration of a metal. Iron (Fe), which is one of the most abundant metals in the earth’s crust is also one the most important nutrients for plant growth, as it is responsible for metabolism. READ MORE