摘要:
A noise-attenuating apparatus removably couple to footwear for reducing sounds associated with walking on wilderness terrain. The noise-attenuating apparatus includes a base having one end corresponding to the toe box of a shoe and a second end corresponding to the heel of a shoe. The noise-attenuating apparatus further including at least one platform disposed on the underside of the base corresponding to the toe box of the shoe and at least one platform disposed on the underside of the base corresponding to the heel of the shoe. The at least one platform disposed on the underside of the base corresponding to the toe box end having at least one sound-dampening pad. At least one platform disposed on the underside of the base corresponding to the heel end coupled to at least one sound-dampening cover. A securing system coupled to the base and adapted for securing the base to the shoe.
摘要:
An impact filter suitable for a kitchen exhaust hood is provided with a grease trap to capture grease particles and channel the particles away. The trap can be of different configurations. The filter can be used in various system layouts.
摘要:
An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.
摘要:
Controlling an exhaust hood system having multiple hood sections each with an exhaust output having an associated damper, each exhaust output feeding to a common downstream fan, where damper position and fan speed control an exhaust flow rate through each hood section, involves monitoring at least one condition of each hood section and, based upon the monitoring, establishing a target flow rate for each hood section; based upon a sum of the target flow rates, establishing a fan speed; and monitoring an actual flow rate through each hood section and responsively controlling damper position to achieve the target flow rate for the hood section. Adjusting fan speed and damper position until damper position for at least one hood section achieves a predetermined open position, while at the same time each hood section satisfies its associated target flow rate, can reduce energy costs associated with system operation.
摘要:
An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.
摘要:
A semiconductor structure and a method for fabricating the semiconductor structure provide a field effect device structure. The field effect device structure includes a gate electrode located over a channel region within a semiconductor substrate that separates a plurality of source and drain regions within the semiconductor substrate. The channel region includes a surface layer that comprises a carbon doped semiconductor material. The source and drain regions include a surface layer that comprises a semiconductor material that is not carbon doped. The particular selection of material for the channel region and source and drain regions provide for inhibited dopant diffusion and enhanced mechanical stress within the channel region, and thus enhanced performance of the field effect device.
摘要:
An impact filter suitable for a kitchen exhaust hood is provided with a grease trap to capture grease particles and channel the particles away. The trap can be of different configurations. The filter can be used in various processes to clean air streams, such as filtering processes for removing grease and other cooking exhaust particles and other processes for removing grease particles.
摘要:
A ventilator assembly for removing contaminants in cooking exhaust includes a hood portion having a hood plenum and an exhaust portion downstream of and in fluid communication with the hood plenum. An electro-static precipitator is disposed in the hood plenum or the exhaust portion, and at least one ultra-violet lamp is disposed upstream of the electro-static precipitator for cleaning the electro-static precipitator. The ultra-violet radiation reacts with the cooking exhaust and removes collected contaminants from an electro-static cell of the electro-static precipitator.
摘要:
An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.
摘要:
An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.