摘要:
Double-clad optical fibers with polymer outer coatings are used in fiber amplifiers and fiber lasers to guide and amplify light. As the optical power increases, the optical fibers must dissipate more heat. Unfortunately, it is difficult to dissipate heat through a polymer cladding, especially at high altitude, without introducing phase noise in the optical signal. To overcome this problem, the inventors have realized metallized polymer-clad optical fibers with superior heat dissipation characteristics than conventional polymer-clad optical fibers. An example metallized polymer-clad optical fiber includes a thin chrome layer that is vacuum-deposited onto the polymer cladding at low temperature, then electroplated with a thicker copper layer. In operation, the copper layer dissipates heat from within the fiber's core and claddings via a heatsink, enabling the fiber to guide and amplify high-power optical signals at high altitude.
摘要:
Trapping graphics during pre-press workflow involves intensive computation. In this invention, the trapping engine uses simple bounding boxes, colors, and temporal order information, to eliminate the possibility of trapping many pairs of objects without ever having to calculate their exact shapes. By considering the temporal order of the objects in a page, such a z-order display list, the trapping engine can quickly reject the possibility of trapping in areas where it is not necessary.
摘要:
A reversible container is provided with a hollow housing and removable closures at each end. The container is filled with a substance, and when at least some of the substance has been removed, the container is refilled with the substance and inverted. In this way, the user is able to use substantially all of the contents of the container, and is able to use completely the older substance first, because the older substance is at the top of the container after the container is inverted.
摘要:
A process is disclosed for delivering a stable, fat soluble vitamin to a feed composition. The process includes dissolving a fat soluble vitamin in a solvent to form a vitamin-enriched solvent and combining the vitamin-enriched feeds; processes for supplementing the diet of a feed animal with a fat soluble vitamin, processes for extending the shelf life of an animal product, and processes for making stable vitamin-enriched supplements for feed compositions are also provided.
摘要:
This invention relates to a metal ion specific capacitance sensor with exceptional sensitivity and wide operating range. It is versatile because different kinds of recognition elements can be immobilized directly in a self-assembling monolayer substantially completely covering the surface of the measuring noble metal electrode. The electrode then becomes selective to those metal ions in the solution that show affinity to the recognition element on the surface. Compared to previously described electrochemical sensors, the sensor according to the present invention shows many orders of magnitude better sensitivity because of the unique measuring principle.
摘要:
The instant invention relates to a baby formula defoaming device, and a method of defoaming baby formula. According to the instant invention, the baby formula defoaming device includes a treaded cap having an aperture therein, a stopper, and a seal. The stopper includes a shaft having a channel therethrough and a sealable valve. The sealable valve includes cooperating elastic parts, which define a slit therebetween. The sealable valve is adapted to close the channel, and the stopper is adapted to receive a pump device mounted thereon. The seal joins the stopper to the cap via the aperture. According to the instant invention, the method of defoaming baby formula includes the following steps: (1) providing water and baby formula in a bottle; (2) capping the bottle with a baby formula defoaming device; (3) connecting a pump device to the defoaming device; (4) removing the air from the bottle via the pump device; (5) disconnecting the pump device from the defoaming device; (6) shaking the bottle; (7) thereby generating a homogenous admixture of water and baby formula, and foams; (8) releasing air back into said bottle via defoaming device; (9) thereby removing said foams from said homogenous admixture; and (10) replacing the defoaming device with a cap adapted to feed a baby.
摘要:
A liquid distributor and method for distribution of a liquid in a mass transfer column, the distributor includes at least one riser comprising at least one riser wall, the at least one riser wall extends from a first surface of the distributor in a first direction of the mass transfer column; at least one shield, the at least one shield extends from a second surface of the distributor opposite the first surface and extending in a second direction opposite the first direction; and at least one liquid distribution aperture extending from the first surface of the distributor through the second surface of the distributor, the at least one shield has a length extending in the second direction such that a gap is created between the at least one shield and a packing, the height of the gap between the shield and the packing is about 10 mm to 75 mm.
摘要:
A heart valve implant according to one embodiment may include a shaft and an anchor disposed on one end of the shaft, the anchor configured to engage tissue. The heart valve implant may further include an expandable member disposed over at least part of the shaft, the expandable member comprising a resiliently deformable internal layer and a resiliently deformable external layer disposed over the internal layer, the expandable member defining a chamber and being configured to receive an inflation medium in the chamber to expand the expandable member, the expandable member further configured to deform upon contact with at least a portion of at least one leaflet of a heart valve to at least partially conform to the shape of the leaflet.