Abstract: Disclosed are devices, systems and methods for operation and control of gravity-fed fluid flows in water and wastewater related systems. The disclosed flow control system uses gravity to provide a flow of a fluid from a fluid source and a motorized flow control device fluidically coupled to the fluid source to control a defined flow rate of the flow by changing a position of an internal volume of the flow control device through which the fluid flows relative to a fixed level of the fluid in the fluid source. The disclosed devices, systems and methods can be used in a wide variety of systems for environmental and low-energy demand applications such as, for example, a wastewater treatment system to control a flow of wastewater in the system.

Abstract: Disclosed are devices, systems and methods for operation and control of gravity-fed fluid flows in water and wastewater related systems. The disclosed flow control system uses gravity to provide a flow of a fluid from a fluid source and a motorized flow control device fluidically coupled to the fluid source to control a defined flow rate of the flow by changing a position of an internal volume of the flow control device through which the fluid flows relative to a fixed level of the fluid in the fluid source. The disclosed devices, systems and methods can be used in a wide variety of systems for environmental and low-energy demand applications such as, for example, a wastewater treatment system to control a flow of wastewater in the system.

Abstract: Disclosed are devices, systems and methods for operation and control of gravity-fed fluid flows in water and wastewater related systems. The disclosed flow control system uses gravity to provide a flow of a fluid from a fluid source and a motorized flow control device fluidically coupled to the fluid source to control a defined flow rate of the flow by changing a position of an internal volume of the flow control device through which the fluid flows relative to a fixed level of the fluid in the fluid source. The disclosed devices, systems and methods can be used in a wide variety of systems for environmental and low-energy demand applications such as, for example, a wastewater treatment system to control a flow of wastewater in the system.

Abstract: Disclosed are devices, systems and methods for operation and control of gravity-fed fluid flows in water and wastewater related systems. The disclosed flow control system uses gravity to provide a flow of a fluid from a fluid source and a motorized flow control device fluidically coupled to the fluid source to control a defined flow rate of the flow by changing a position of an internal volume of the flow control device through which the fluid flows relative to a fixed level of the fluid in the fluid source. The disclosed devices, systems and methods can be used in a wide variety of systems for environmental and low-energy demand applications such as, for example, a wastewater treatment system to control a flow of wastewater in the system.

Abstract: A liquid crystal display device includes a back cover and a liquid crystal panel fixed to the back cover to form a space for receiving the backlight module. The backlight module includes a main reflecting plate, a plurality of light sources disposed on the main reflecting plate, an inverter board disposed on the main reflecting plate to simultaneously provide power for the light sources, the light sources are electrically and physically connected to the inverter board, a side reflecting sheet covering the inverter board; and a diffusion plate supported on the back cover. The main reflecting plate and the side reflecting sheet reflect light emitted by the light sources towards the diffusion plate.

Abstract: In a rear-projection TV system in which the image is generated by an optical engine and projected through a mirror towards a diffusion plate screen, picture quality adjustment is undertaken at the optical block level to reduce the distance between the adjustment device and screen and thereby improve production throughput in the dark room in which the adjustments are made.

Abstract: In a rear-projection TV system in which the image is generated by an optical engine and projected through a mirror towards a diffusion plate screen, picture quality adjustment is undertaken at the optical block level to reduce the distance between the adjustment device and screen and thereby improve production throughput in the dark room in which the adjustments are made.

Abstract: Systems and methods for reducing defects during assembly of rear projection TV screens by using direct high intensity light characterized and classified with spectroscopy analysis to identify contaminants in diffusion plates, and then controlling air flow to reduce or eliminate the contaminants.