Essays about: "standards iso"

Showing result 16 - 20 of 172 essays containing the words standards iso.

1. 16. Visibility in Smoke With Different Extinction Coefficients

   University essay from Lunds universitet/Avdelningen för Brandteknik

   Author : Lea Elhokayem; [2022]
   Keywords : Visibility; smoke; exit sign; extinction coefficient; visibility constant; evacuation; Technology and Engineering;

   Abstract : Visibility in smoke has since the 1970s gained some attention, mostly after Tadahisa Jin ran the experiments which helped him develop todays widely used visibility equation. By showing that visibility can be assumed to be inversely proportional to the extinction coefficient by a visibility constant (equal to 8 for light emitting sign and 3 for light reflecting), Jin opened up new doors for researchers who were testing out his theory by going around experimenting in different ways and also by showing that there is way for more research to be done. READ MORE

3. 17. Fabrication of 3D-Printable Filament using Recycled Thermoplastics and Recycled Fillers

   University essay from Uppsala universitet/Institutionen för materialvetenskap

   Author : Nithin Nagendra; [2022]
   Keywords : ;

   Abstract : This degree project was performed in collaboration with ECORUB AB. Polymeric materials like thermoplastic and rubber are produced in massive quantities all over the world. However, the percentage of items that are recycled is quite low. READ MORE

4. 18. Six Sigma for quality assurance of Lithium-ion batteries in the cell assembly process : A DMAIC field study at Northvolt

   University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

   Author : Mani Mostafaee; [2021]
   Keywords : Cell assembly process; ISO 14644; Lithium-ion battery; Particle contamination; Quality Cost; Technical cleanliness; VDA 19;

   Abstract : Lack of technical cleanliness and particle contaminations in Lithium-ion battery manufacturing affect the performance of batteries which are a risk for the safety and quality of the product. Therefore, part of the manufacturing process occurs inside the Clean and Dry room area to maintain technical cleanliness. READ MORE

5. 19. Experimental Study of Installation Effects on Cooling Fan Noise

   University essay from KTH/Marcus Wallenberg Laboratoriet MWL

   Author : Yu-Yu Lu; [2021]
   Keywords : Electric vehicles; Cooling fan noise; Installation effects; Free-space measurement; Wall-mounted measurement; In-vehicle measurement; Spectral decomposition method; Tonality; Broadband noise level.;

   Abstract : Owing to the ever-changing developments of battery and electric powertrain, vehicle electrification is the trend in the future. Without the presence of a combustion engine, masking effect from it reduces and noises from other components become perceivable. Among all, the cooling fan is one of the major noise sources. READ MORE

6. 20. Assessment of optimal suspension systems with regards to ride under different road profiles

   University essay from KTH/Fordonsdynamik

   Author : Adithya Murali; Pratik Hindraj Vaje; [2021]
   Keywords : Ride comfort; Handling; Road profiles; ADAMS; Shaping filter method; Sinusoidal approximation method; Coherence; ISO 8608; Acceleration PSD s; Genetic Algorithm optimisation; ISO 2631.; åkkomfort; Kurvkörningsegenskaper; Vägprofiler; ADAMS; Formningsfiltermetod; Sinusformad approximationsmetod; Koherens; ISO 8608; Acceleration PSDs; Genetisk algoritmoptimering.;

   Abstract : Passenger ride vibration comfort is a critical aspect to consider while developing any vehicle and there is a need to understand how the occupants would be affected when driving on different road profile roughness. Hence, road profile generation is critical as road profiles are used as inputs to simulation tools to investigate vehicle dynamic behaviour in depth. READ MORE