Abstract: A novel fluid valve system includes a housing defining a fluid path between first and second ports. The housing preferably includes an interior cylindrically-arcuate surface that defines a center of curvature, with the fluid flow path passing through an opening in the interior cylindrically-arcuate surface. The fluid valve may include a foot having a bottom and a heel, with the bottom facing the interior cylindrically-arcuate surface, and with the heel disposed transverse to the bottom. The foot may extend in a radial direction away from the center of curvature, with the foot pivoting within an operational angular range about the center of curvature. The bottom of the foot may be configured to translate over the opening in the interior cylindrically-arcuate surface, and the heel may be configured to abut the second port with the foot pivoted to a closed position of the operational angular range.

Abstract: An apparatus for continuous electric dehydration of a positive electrode active material, includes a first electrode; a transfer member on which a positive electrode active material is seated, moves to continuously transfer the positive electrode active material to the drum; and a guide device, which is disposed to surround a part or all of the drum and in which the positive electrode active material comes into close contact between the guide device and an outer circumferential surface of the drum when the transfer member moves between the guide device and the outer circumferential surface of the drum and which includes a second electrode for generating an electric field caused by a potential difference between the first electrode and the second electrode so that a cleaning solution remaining in the positive electrode active material introduced by the transfer member is dehydrated by using electrophoresis due to the electric field.

Abstract: An electrochemical cell for wastewater treatment comprises a catalyst coated membrane, an open pore mesh placed on each side of the catalyst coated membrane, and a compression frame placed next to each of the open pore meshes. Each compression frame has compression arms spread within the area delimited by the perimeter of the frame to apply a uniform compression force through fasteners which protrude through the compression arms, the open pore meshes and the catalyst coated membrane. Each open pore mesh comprises a flat surface and an embossed surface. The embossed surface can comprise embossed areas around the holes in the open pore mesh, transverse embossed areas which, in the assembled cell, are placed next to the compression arms of the compression frames and peripheral embossed areas along the perimeter of the open pore meshes. The embossed surface provides an improved protection against electro-circuiting.

Abstract: An ambient light sensor is provided that includes a sensor input having a delta-sigma analogue to digital converter. The delta-sigma analogue to digital converter includes a switched capacitor, a common mode voltage source, a reference voltage source, and a switch network. In a first clock phase, the switch network connects the switched capacitor to charge it to either a sum or difference voltage. In a second clock phase, the switch network connects the switched capacitor to transfer charge into a summing junction. A controller controls the switch network in response to a comparator output to connect the switched capacitor to either the common mode voltage or the reference voltage while in the first clock phase.

Abstract: A membrane surface monitoring system (MSM) and membrane surface monitoring cell for direct and unambiguous detection of membrane surface fouling and mineral scaling. The system includes a membrane surface monitoring system cell, a control valve, a retentate flow meter/transmitter and a controller. The MSM cell has a visually-observable membrane, an edge-lit light guide, an edge illumination light source, a retentate module, and a permeate module. A pressurized inlet stream is fed into the MSM cell. The feed contacts a membrane sheet, leading to membrane-based separation operation to produce retentate and permeate streams. The MSM cell integrates surface illumination and imaging components to allow direct real-time visualization and spectral imaging of the membrane surface in real time. The pressure on the feed-side of the MSM cells is approximately that of the membrane plant element being monitored such that the plant control system can adjust plant operating conditions.

Abstract: The present invention provides a cathode active material dehydration apparatus using electroosmosis, the dehydration apparatus accommodating a cathode active material that has passed through a washing process, and applying an electric field to the cathode active material to remove, through electroosmosis, a washing solution remaining in the cathode active material.