摘要:
A mass flow controller is disclosed and includes body portion having a first internal passage and at least second internal passage formed therein, a flow control valve coupled to the body portion and in communication with the first and second internal passages, at least one pressure transducer coupled to the body portion and in communication with at least one of the first internal passage, the second internal passage, and the flow restrictor, a nonlinear flow restrictor configured to produce a high compressible laminar flow therethrough coupled to the second internal passage, a thermal sensor in communication with at least one of the first internal passage, the second internal passage, and the flow restrictor, and an exhaust vessel in communication with the flow restrictor.
摘要:
A method for treating secondary fiber to achieve wet strength while retaining repulpability is provided. In an embodiment, the method involves supplying a first line of secondary fiber which represents a total supply of secondary fiber. The method has a further step of removing a portion of the total supply of secondary fiber in the first line and transporting the portion into a second line. The second line is treated with a cationic resin treatment. A third line supplies virgin fiber. The third line and the first line are combined. Next, the treated secondary fiber in the second line is combined with the mixed contents of the first line and third line. Separation of the virgin fiber line from the secondary fiber line at initial stages of the process lowers cationic demand for the system, and reduces an amount of resin required to treat the system.
摘要:
A bending block for use with a bending tool for bending pipe, conduit or the like of the type having a handle with a bending anvil at one end, the anvil having an arcuate edge about which pipe or the like may be bent comprises a block for attachment to the anvil arcuate edge. The bending block is movable along the edge, and may be locked in place. Using the bending block of the invention, bends of precise angles may be achieved. An improved bending tool of the type having a handle with a bending anvil at one end, the anvil having an arcuate edge, with the improvement comprising a bending block for movable attachment to the anvil arcuate edge.
摘要:
The present invention provides improved ionically conducting membranes having internal passages therethrough and methods for making the improved membranes. The membranes may be formed from any ionically conducting material. In particular, the membranes may be formed of a single ionically conducting material, such as in a cation-conductive or anion-conductive membrane, or a plurality of ionically conducting material, such as in a bipolar membrane having a cation-selective region, an anion-selective region, and an interfacial region between the anion-selective region and the cation-selective region.
摘要:
This device when adapted to an ordinary bath tub, converts the tub into a system that prevents spilled water resulting from the process of taking a bath, from spilling onto the bathroom floor. This device captures the water that ordinarily would have fallen on the floor and redirects it to a reservoir tank, for holding. This tank or water holding device, stores the water until it is quickly and easily disposed by dumping it back into the tub's drainage system.There is no other system that has the ability to keep the bathroom floor completely dry when either taking a shower or a bath. With a series of shield, water trough and hoses, the water that ordinarily would have become a safety hazard on the floor, is quickly channeled off to a drain line, there to a reservoir tank from which the water would be disposed.The device is attractive, non-intrusive and light weight. It is also detachable after installation and is completely portable and transferrable.
摘要:
The systems and methods described create a mathematical representation of each of the media objects for which user ratings are known. The mathematical representations take into account the subjective rating value assigned by a user to the respective media object and the user that assigned the rating value. The media object with the mathematical representation closest to that of the seed media object is then selected as the most similar media object to the seed media object. In an embodiment, the mathematical representation is a vector representation in which each user is a different dimension and each user's rating value is the magnitude of the vector in that dimension. Similarity between two songs is determined by identifying the closest vectors to that of the seed song. Closeness may be determined by subtracting or by calculating the dot product of each of the vectors with that of the seed media object.
摘要:
Recommendation systems and methods are disclosed that objectively determine similarities between products and quantify diversity between products for use in generating recommendations. The product interests, such as musical interests, of a user are measured based on objective characteristics of the product. Then the interests are modeled by a distribution. The resulting distribution is then used as a measure of the diversity of the user's tastes. Based on the diversity and the characteristics of other products, recommendations are then made to the user. The systems and methods may also utilize subjective information as a secondary filter to add or remove products for which such data is known.
摘要:
The present invention provides a method for the synthesis of unagglomerated, highly dispersed, stable core/shell nanocomposite particles comprised of preparing a reverse micelle microemulsion that contains nanocomposite particles, treating the microemulsion with a silane coupling agent, breaking the microemulsion to form a suspension of the nanocomposite particles by adding an acid/alcohol solution to the microemulsion that maintains the suspension of nanocomposite particles at a pH of between about 6 and 7, and simultaneously washing and dispersing the suspension of nanocomposite particles, preferably with a size exclusion HPLC system modified to ensure unagglomeration of the nanocomposite particles. The primary particle size of the nanocomposite particles can range in diameter from between about 1 to 100 nm, preferably from between about 10 to 50 nm, more preferably about 10 to 20 nm, and most preferably about 20 nm.
摘要:
A therapeutic composition effective on contact with thrombin at a site of treatment in a patient as a tissue adhesive, hemostat or sealant, said composition comprising non-autologous, non-single donor mammalian fibrinogen that is capable of polymerizing when provided in solution at said site at a concentration of about 30 mg/ml thereof or less, to a fibrin network having therapeutically effective strength, wherein said composition contains less than about 30% (w/w), based on total protein mass present therein, of proteins other than fibrinogen, and further comprises a sufficient amount of one or more low molecular weight physiologically-compatible solutes such that said composition, if formulated as a lyophilized material, can be reconstituted therefrom at room temperature in sterile water for injection in about 30 minutes or less, at about 25 mg/ml of said fibrinogen. Additionally, methods for producing and maintaining said composition, and methods for the use thereof.