Essays about: "Kemisk sensor"

Showing result 1 - 5 of 7 essays containing the words Kemisk sensor.

1. 1. Life Cycle Assessment of Food Sensors

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Weijie Yan; [2023]
   Keywords : ;

   Abstract : The global demand for food increased with the booming trend of population, while food waste is a severe issue to be solved. Xanthine is a chemical compound which will accumulate in meat after the death of the animal, and the concentration of it can be an indicator of meat freshness. READ MORE

3. 2. Activity and stability of urease enzyme molecules for on-site urea measurement in milk

   University essay from Linköpings universitet/Sensor- och aktuatorsystem

   Author : Emma Valtersson; [2022]
   Keywords : Kemisk biologi; urea i mjölk; biosensor;

   Abstract : The nitrogenous metabolite urea is an important biomarker that indicates cows’ nutritional intake. Today, determining the urea concentration from milk samples requires analysis techniques in a lab which is time-consuming and expensive. READ MORE

4. 3. Analysis and optimization of a dissolved air flotation process for separation of suspended solids in wastewater

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Oskar Bäck; [2021]
   Keywords : Dissolved air flotation; Effluent recycle rate; Optimization; Recycle flow pressurization; Wastewater;

   Abstract : Margretelund wastewater treatment plant (WWTP) operated by the water utility Roslagsvatten AB, wasbuilt in 1956 and is located in Åkersberga town, Stockholm County, Sweden. Margretelund WWTP waslast renovated in 1999, and has been operated with the same physical, chemical, and biological processessince then. READ MORE

5. 4. The use of graphene quantum dots as detection elements in nanomaterials-based sensors for forensic applications

   University essay from KTH/Tillämpad fysik

   Author : Xiaofan Ma; [2021]
   Keywords : Graphene Quantum Dots; Amphetamine; Cocaine; Chemical Sensor; Forensic Drugs; Grafenkvantprickar; amfetamin; kokain; kemisk sensor; rättsmedicinska läkemedel;

   Abstract : The large-scale abuse and addiction of narcotics such as amphetamine and cocaine have become a global problem. In this project, we innovatively use graphene quantum dots (GQDs) as a fluorescent sensor to detect and quantify amphetamine and cocaine. This technology will have broad forensic application prospects. READ MORE

6. 5. Characterization of graphene-based sensors for forensic applications : Evaluating suitability of CVD graphene-based resistive sensor for detection of amphetamine

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Ülle-Linda Talts; [2019]
   Keywords : Sensor systems; Chemical sensors; Nanosensors; Drug screening; Nanomaterials; Sensorsystem; Kemiska sensorer; Nanosensorer; Drug screening; Nanomaterial;

   Abstract : Recent improvements in sensor technology and applications can be partly attributed to the advancements in microand nanoscale fabrication processes and discovery of novel materials. The emergence of reliable and inexpensive methods of production of monolayer materials, such as graphene, has revealed the advantageous electronic properties which when utilized in sensory elements can significantly enhance response to the input signal. READ MORE