摘要:
A method of improving the accuracy of a variable orifice flow meter that includes characterizing the flow coefficient of the flow meter orifice for different orifice openings and for different differential pressures. The method may be particularly useful with a flow metering and controlling device that includes a fluid flow conduit having at least one planar inner wall and an element having a linear edge configured to mate with the at least one planar inner wall of the fluid flow conduit. The element is movable relative to the conduit to define a flow orifice and vary a cross-sectional area of the orifice. The device also includes a processor configured to calculate the fluid flow based on the cross-sectional area of the orifice, the differential pressure, and the flow coefficient.
摘要:
Pigment pre-dispersions for use with ionomers, methods for making pigment pre-dispersions for use with ionomers, pigmented ionomers, and multilayer films containing pigmented ionomers are disclosed. The pigment pre-dispersions generate or maintain a minimal pigment particle size in order to optimize the dispersability of the pigment in an ionomer upon a single pass through processing equipment. The carrier of the pigment pre-dispersion is chosen based on compatibility parameters, such as refractive index and viscosity, to be compatible with the ionomer. Carriers can include acid copolymers, acid terpolymers, ionomers, polyethylenes, ethylene vinyl acetate, and ethylene methacrylate. The pigmented ionomers created from these pigment pre-dispersions have well dispersed pigment with a particle size of less than or equal to about 25 micrometers. Films or sheets can be created from the pigmented ionomers and the pigmented ionomers can be used in mulitlayer films.
摘要:
An exercise device with a constraining handle. The disclosure includes a garment having a first end and a second end. A member is disposed between the first end and the second end in order to flexibly position around a body part. The device further includes a plurality of pockets uniformly disposed around the member. Additionally, a handle fastens within the member near the first end, wherein the handle connects with the body part to maintain contact between the body part and the member while the body part performs exercise movements. The disclosure further includes a method of using the garment while the body part moves through exercise techniques. The method comprises inserting a body part through a body area of a member and uniformly disposing the member around the body part. Next, the body part connects with a handle of the member which constrains the body part to the member while the body part performs exercise techniques.
摘要:
The invention provides an optical film comprising a transparent support with an antireflection layer substantially conformed in shape to the surface underlying the layer, the antireflection layer containing a binder polymer having dispersed polymer particles which are nanovoided so as to have a surface area greater than 50 m2/gm and which fill 64% or less of the layer volume. The film provides improved anti-reflection without the expected increase in transmission haze.
摘要:
Methods and systems for processing uncalcined coke are provided. The methods and systems provide for combusting effluent gas from a refinery unit and a stream of uncalcined coke. The refinery unit effluent gas may be the offgas from a rotary kiln calciner. The refinery unit effluent gas and the uncalcined coke stream are combusted in an integrated gas/solids incinerator. Heat released during the combustion of these streams may be used to generate steam or electricity. The methods and systems disclosed provide low cost energy production at calciner effluent gas incinerator locations where uncalcined coke is available.
摘要:
Disclosed is an integral film comprising a transparent polymeric substrate having a surface bearing polymeric beads, wherein the swell ratio, the size, and the laydown of the beads are selected so as to provide both a one sided static friction coefficient of not more than 0.68 and an internal haze value of not more than 0.1. The film provides an improved combination of slip and optical properties.
摘要:
A panel for use in an air handling unit including a skin, a fixture having a base, and the base having a surface. The base is interposed between opposed ends and opposed risers extending from the ends of the base in a direction away from the surface. The risers are secured to the skin to form an enclosed chamber between the skin and the fixture. An insulating material is then injected into the enclosed chamber.
摘要:
A catalyst for the production of alkenylaromatics from alkylaromatics, wherein the catalyst is predominantly iron oxide, an alkali metal compound and less than about 100 ppm of a source for a noble metal, such as palladium, platinum, ruthenium, rhenium, osmium, rhodium or iridium. Additional components of the catalyst may include compounds based on cerium, molybdenum, tungsten and other such promoters. Also a process for the production of alkenylaromatics from alkylaromatics using this catalyst.
摘要:
A multi-functional seat shield not only is adapted for protecting of a car seat by detachably covering its contact surfaces, but also can be used as an outdoor ground pad when it is not used on the seat. Therefore, when the seat shield is not in use for covering the seat, the seat shield can be turned inside out through the pocket opening so as to turn a front surface of a cover sheet and an inner surface of a pocket sheet out and invert a holding piece to store between the cover sheet and the pocket sheet. Thus, the seat shield is re-arranged to be used as a ground pad.
摘要:
A self-contained breathing apparatus for emergency response personnel has face mask with a first port connected by a hose to a tank of compressed air. Back-up smoke inhalation protection is provided for imminent life-threatening situations by configuring a face mask with a canister containing a filter medium, an inlet opening through which air enters and an outlet coupling for attachment to a second port of the face mask. In normal situations the mask is supplied with air from the tank, but should the tank supply become depleted, the canister can be activated. A use-evidencing mechanism is operatively connected to the canister to indicate use of the air filtering system. This mechanism may be a non-reusable cover applied over the inlet opening and/or a valve in the second port of the face mask with a portion that breaks away upon opening of the valve. Such mechanisms provide an indication of previous use of the filtering system and inhibit a fire fighter from using the system in an unauthorized manner, in less than an imminent life-threatening situation.