A dual-capacitor resonant circuit for adaptive resonant energy to be used in quasi-resonant ZCS dc-dc converters has been created. Specifically, the full-bridge (FB) boost-type dc-dc converters were developed for quasi-resonant ZCS operation and smooth current commutation by utilizing L-C resonance between leakage inductance of high frequency transformer and a resonant capacitor. In the new design, two capacitors (i.e.
"Researchers at RPI developed an optical reservoir computer (ORC) with commercial off-the-shelf components to predict lung tumor motion during radiotherapy. The technology could improve radiation therapy outcomes and yield applications for other imaging modalities. The ORC shows comparable motion prediction accuracy and error rates to traditional neural networks (long short-term memory (LSTM), Multi-Layer Perceptron Neural Network (MLP-NN), and Adaptive Boosting and Multi-Layer Perceptron Neural Network (ABMLP-NN)).
Researchers at Rensselaer Polytechnic Institute have developed a technology which could improve VLSI testing by allowing for non-destructive testing of VLSI circuits under bias for electronic systems. With this new technology, researchers have focused on improving testing output as chip density increases along with decreasing chip sizes. Terahertz radiation (and related radiation at other frequencies – RF, sub-THz) is used to illuminate the chip under the test.
Rensselaer inventors created a hybrid fiber UV photodetector with a completely new internal gain mechanism which can achieve extremely high external quantum efficiency for ultrasensitive UV sensing while at the same time only require low voltage supply. The new photodetector has a high potential for system integration; the size of hybrid fiber UV photodetector is comparable to a 2 cm long human hair, with negligible weight. It is highly flexible, can bend to any angle with a great flexibility and potential for smart system integration, such as Micro Robot, Lab on a Chip, etc.
The terahertz (THz) band shows promise in terms of providing improved communications capabilities, including the ability for power-enhanced beam-forming and spatial multiplexing and reconfigurable array architectures that meet the capacity demands for 5G applications. All of these attributes of line of sight (LoS) systems in the THz spectral regime allow for wireless bit rates to be augmented without typical issues such as latency or noise complicating the picture.
Optical concentrators are used to focus sunlight onto a smaller area where a photovoltaic cell is located in order to reduce the total area (and cost) of PV cells. Concentrators often have problems assocated with higher temperatures and the need to be moved to track the movement of the sun. This technology utilizes double sided PVs and multiple optical elements as a concentrating system to avoid the need for a moving concentrator.
Todays integrated circuits often can include millions of integrated components and devices. However, for a given product, it sometimes is not possible to achieve on one chip all of the circuitry required. A major challenge then becomes the interconnection of the circuitry on mulitple chips or substrates while keeping the connection resistance low and path lengths short to minimize inductive and capacitive effects, permitting high speed operation. Thus, a structure and method of forming compact integrated circuit assemblies and interconnections is needed.
Solid state radiation detectors, such as neutron detectors and gamma ray detectors, have been proposed as alternatives to gas-tube based detectors. Radiation-detecting hetero-structures may be formed by using physical etching processes, such as reactive ion etching (RIE) to form trenches in a semiconductor substrate, followed by using chemical vapor deposition (CVD) to deposit radiation-detecting material within the formed trenches.
This technology relates to nanoparticles that are particularly beneficial in optical systems. The nanoparticles include phosphor-functionalized particles with an inorganic nanoparticle core, surface polymer brushes in the form of long and short-chain polymers bonded to the inorganic nanoparticle core, and organic phosphors bonded to the inorganic nanoparticle core or the short-chain polymers. Applications for this technology include LEDs, lighting devices, fixtures, efficient light conversion materials, etc.
The use of fillers in both thermoplastic and thermoset polymers has been common. The practice of filling polymers is motivated both by cost reduction and by the need to obtain altered or enhanced properties. Nanostructured dielectric materials have demonstrated advantages over micro-filled polymer dielectrics. However, this is a need to improve these nanocomposites such that they can be adapted for use in such situations as electrical insulation for low or medium voltage cables.