In accordance with some embodiments, systems, methods, and media for controlling support structures and build orientation are provided. In some embodiments, a method for additive manufacturing a part ...
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A controller for individual sites of the microgrid controls loads, sources, the importing of power, and the exporting of power as a function of the energy storage at the site. A microgrid of such sit...
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A variable speed drive for an electrostatic motor provides feedback control according to rotor position and/or rotor rotational rate deduced from back currents (back-MMF). Extraction of the back curr...
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An electrical rotating machine, such as a generator or motor, communicates power from a stationary location to the rotating rotor of the rotating machine via opposed pairs of capacitor plates, one pla...
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Aspects of the disclosure are directed to methods and/or apparatuses involving the formation of samples or other structures using a dynamically modified mixture of materials. As may be implemented in...
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Photoreceptor scaffolds that can be used for transplantation of organized photoreceptor tissue, with or without retinal pigment epithelial cells, which may improve grafted cell survival, integration, ...
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A machine drive includes a suspension force inverter, a torque inverter, and a capacitor. The suspension force inverter provides suspension force electrical signals to suspension force electrical term...
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A 3D printer successively fuses sheet material in a stack to form a three-dimensional object. The sheet material may provide a mesh separating islands of material that will be fused to produce the de...
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A controller for robot arms and the like having mechanical singularities identifies paths near the singularities and modifies those paths to avoid excessive joint movement according to a minimization ...
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A switching circuit includes a diode, a semiconductor switch, and a first bidirectional switch. The semiconductor switch is configured to conduct a first current from a second terminal to a third term...
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An electrostatic machine employs a high dielectric fluid comprised of a dielectric liquid with suspended dielectric particles. Electrorheological effects are minimized through small particle sizes and...
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A first radial force value and a second radial force value is received by a radial magnetic bearing controller. Coefficients are computed for a first equation using the first and second radial force v...
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High-power electrical equipment such as electrical motors are increasingly powered using alternating current (AC) synthesized using semiconductor devices. Desirably, the semiconductors are operated in...
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Diesel compression ignition engines offer higher efficiency and lower CO2 emissions than their gasoline spark ignition counterparts; however, controlling NOx and soot emissions while achieving high ef...
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The vernier permanent magnet (VPM) machine first appeared about 20 years ago. This motor has the potential to create torque well beyond other types of permanent magnet machines and compete with rare e...
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Although horizontal axis wind turbines currently dominate the wind power industry, their vertical axis counterparts offer several advantages. For example, vertical axis systems are powered by wind com...
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As of 2016, 39% of the total 614,387 bridges in the US had exceed their design lives. In China, almost 10% of its 779,159 bridges are classified as structurally deficient. Other countries in South Ame...
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Most present-day electronics are made with solid-state transistors constructed of semiconducting materials, such as silicon. This solid-state technology largely replaced the prior use of vacuum tubes ...
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A converter is an electrical device for converting electrical energy from one form to another, such as between alternating current (AC) and direct current (DC), between different voltages or frequenci...
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In a drive system, a voltage source inverter (VSI) may be used to transfer real power from a DC power source to an AC load. Conventional VSIs consist of two or three phase-legs, each of which is a ser...
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Despite recent advances in additive manufacturing, especially rapid plastic prototyping, there is still a need for better 3-D metal printers. Current techniques are relatively slow and not up to the t...
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Inductors and capacitors are fundamental building blocks in many electrical devices and provide energy storage. Inductors store energy in the form of a magnetic field in the vicinity of a coiled condu...
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“Rectennas” are antennas that can receive radio signals and rectify them to generate electrical power for wireless power transfer. Potential applications for rectennas range from large-scale power...
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Nanotubes and nanowires are used extensively to tailor material properties. However, wide implementation of their extraordinary characteristics has been difficult due to their 1-D geometry and limited...
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Mechanical engineers commonly employ a software modeling tool called finite element analysis (FEA) to virtually simulate a design prior to physical prototyping.  In FEA, a three dimensional (3-D) mod...
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