Essays about: "phase shifting"
Showing result 11 - 15 of 42 essays containing the words phase shifting.
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11. Far-field pattern synthesis of transmitarray antennas using convex optimization techniques
University essay from KTH/Tillämpad fysikAbstract : Transmitarrays antennas (TAs) can be seen as the planar counterpart of optical lenses. They are composed of thin radiating elements (unit cells) which introduce different local phase shifts on an incident electromagnetic wave, emitted by a primary source, and re-radiate it. READ MORE
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12. Submillimeter 3D surface reconstruction of concrete floors
University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknikAbstract : During the creation of any concrete floor the concrete needs to be grinded down from it's very rough newly poured form to a more usable floor surface. Concrete floor grinding is very special in that the work area is often immensely large while the height difference on the surface is incredibly small, in-fact the the largest local difference of the surface from a peek to a valley during the grinding process is submillimeter and goes down to micrometer scale. READ MORE
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13. Long-term Effect of Metallic Iron Sorbents on Arsenic Mobility in an Anoxic Aquifer : An assessment based on long-term column experiments
University essay from SLU/Dept. of Soil and EnvironmentAbstract : Zero valent iron (ZVI) sorbents have successfully remediated soils burdened with different groups of contaminants. When working to alleviate arsenic (As) contamination, the location-specific subsurface chemistry greatly affects the efficiency of the sorbents as it controls the speciation of As and the transformation of the ZVI, as well as the interaction between these (remediating mechanisms). READ MORE
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14. An Integrated Toolchain for Designing Commercial Lunar Rovers
University essay from KTH/RymdteknikAbstract : As commercial lunar rovers are being developed and planned to fly from next year, in the context of a global momentum for lunar exploration, the mindset of system design is shifting to a product-oriented approach (as opposed to traditionally single mission-designed system). This deeply affects the system engineering discipline, which is also evolving through the development of more integrated, model-centric methodologies such as Model-Based System Engineering (MBSE). READ MORE
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15. Collision detection algorithm in a linear motion : for electrical height adjustable tables
University essay from Jönköping University/JTH, Avdelningen för datateknik och informatikAbstract : The current collision detection system (CDS) that ROL Ergo AB is using for their height adjustable tables can be improved. The manufacturing process of the legs makes today's CDS not accurate enough to detect collisions, because the metal that is used in manufacturing has slight variations between them. READ MORE
