Essays about: "shadow boundary"

Found 5 essays containing the words shadow boundary.

1. 1. Reconfigurable Intelligent Surfaces : Optimal Positioning and Coverage Improvement

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

   Author : Noé Bernadas i Busquets; [2023]
   Keywords : 6G; Reconfigurable Intelligent Surfaces; Wireless Communications; Coverage; 6G; omkonfigurerbara intelligenta ytor; trådlös kommunikation; täckning;

   Abstract : Med framväxten av framtida mobilgenerationer bortom 5G, studeras nya teknologier för att tillgodose de förväntade kraven för framtida tjänster som Ultra-Reliable Low Latency Communications (URLLC) eller Virtual Reality. Bland dessa teknologier uppstår Reconfigurable Intelligent Surfaces (RIS) som en av de mest lovande på grund av deras förmåga att förbättra kanalen samtidigt som de bara ökar nätverkets energiförbrukning måttligt. READ MORE

3. 2. Life cycle assessment of a CAV, a VAV, and an ACB system in a modern Swedish office building

   University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

   Author : Nadeen Hassan; [2019]
   Keywords : Life cycle assessment; Environmental impacts; HVAC systems; Environmental indicator; Energy; Environmental performance; Impact assessment; Life cycle impact; Buildings; SimaPRO; Ecoinvent; Manufacturing phase; Operation phase; Active chilled beams; Variable-air-volume system; Constant-air volume system.; Technology and Engineering; Earth and Environmental Sciences;

   Abstract : Energy use in buildings contributes significantly to the global energy demand and environmental impacts. Among all building services, heating, ventilation, and air conditioning (HVAC) systems consume the most energy. HVAC systems are as well one of the largest consumers of natural resources and materials in the building sector. READ MORE

4. 3. Shadow effects in open cross-sections : An analysis of steel temperatures with COMSOL Multiphysics, TASEF and Eurocode

   University essay from Luleå tekniska universitet/Byggkonstruktion och brand

   Author : Lucas Andersson; [2018]
   Keywords : Shadow effects; Construction; Fire; COMSOL; TASEF; EUROCODE; Steel; Thermal radiation; Separated boundary conditions;

   Abstract : Steel is a material commonly used in various constructions such as high-rise buildings, sport arenas, ships etc. Steel is a versatile building material due to its isotropic characteristics, e.g. both high tensile- and compressive strength. READ MORE

5. 4. Quantifying the Shadow Effect between Offshore Wind Farms with Idealized Mesoscale Models and Observed Wind Data

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : David Werner; [2016]
   Keywords : Shadow effect; offshore wakes; atmospheric stability; analog ensemble; wake forecasting; idealized mesoscale modeling; Weather Research Forecast WRF model; downscaling; North Sea; Princes Amalia; Egmond aan Zee;

   Abstract : Two post processing methods for quantifying the shadow effect of the offshore wind farm Princes Amalia (PA) onto Egmond aan Zee (OWEZ) wind farm are analyzed and benchmarked. The first method is the author’s proposed shadow effect determination method (SEDM), which quantifies an offshore wind farm’s shadow effect based on mesoscale WRF (Weather Research Forecast) idealized modeling and the observed frequency of the analyzed site’s wind conditions. READ MORE

6. 5. COMPUTATION OF THE ARC LENGTH FROM THE SHADOW BOUNDARY OF A CAD OBJECT

   University essay from Institutionen för datavetenskap, fysik och matematik, DFM

   Author : Eric Amoateng; [2012]
   Keywords : Ray tracing; arc length; shadow boundary; lit zone; CAD object;

   Abstract : CAD objects are geometrical descriptions of physical scenes from the real world. Ray tracing is used to project the objects onto a pixel screen. A lit and a shadow zone are formed according to the direction of the incoming field (light) and the orientation of the pixel screen. READ MORE