70results about How to "Increase the wetted area" patented technology

A medical pressure-sensitive adhesive composition having excellent re-adhesion property, and also excellence in both the peel adhesion property and the low skin stimulus property, a process for producing the same, and a medical tape are provided. In the medical tape, a medical pressure-sensitive adhesive composition containing acrylic polymer and acrylic oligomer is laminated on a substrate, wherein the medical pressure-sensitive adhesive composition is prepared by cross-linking an intermediate composition containing an acrylic polymer having a cross-linkable functional group and an acrylic oligomer containing 10 to 40 percent by mole of vinyl monomer with a lactam ring through the use of a cross-linking agent, and wherein this medical tape is made by compounding the acrylic oligomer in the range of 50 to 700 parts by weight relative to 100 parts by weight of acrylic polymer, while the number average molecular weight of the acrylic polymer is set at a value within the range of 300,000 to 1,500,000, and the number average molecular weight of the acrylic oligomer is set at a value within the range of 1,000 to 10,000.

An exhaust heat recovery apparatus includes an evaporation unit and a condensation unit communicated with the evaporation unit such that an operation fluid circulates therein. The evaporation unit is disposed in a first fluid passage through which a first fluid flows, and performs heat exchange between the first fluid and the operation fluid, thereby evaporating the operation fluid. The condensation unit is disposed in a second fluid passage through which a second fluid flows, and performs heat exchange between the second fluid and the operation fluid. The exhaust heat recovery apparatus further includes a wet area increasing member in a tube of the evaporation unit for increasing a wet area of the operation fluid due to surface tension of the operation fluid. The wet area increasing member is disposed adjacent to an inner surface of the tube and has extension surfaces extending in directions intersecting with the inner surface.

An external adjustable ballast system for keeled sailboats comprising a weight that is designed for low hydrodynamic drag, mounted through a beam to a shaft running down the leading edge of the fin keel. Turning the shaft moves the weight to optimize hull trim, both fore / aft and athwartships, for a particular point of sail. If the weight and beam are shaped as a lifting body and mounted to the shaft such that it pivots as it rotates to optimize angle of attack, the dynamic balancing component can allow for a lighter weight. Ballast weight and beam can be raised or lowered to optimize performance for expected wind conditions. The leading edge of the fin keel is a rotatable non spherical shaft. When rotated, the shaft creates an asymmetric cross section which improves hydrodynamic efficiency of the keel.

A blended wing body aircraft wherein at least each profile section corresponding to the normalized half-span values from 0 to 0.2 has a thickness ratio having a nominal value within the range set forth in Table 1. Also, a blended wing body aircraft wherein at least each profile section corresponding to the normalized half-span values from 0.15 to 0.3 has a normalized chord having a nominal value within the range set forth in Table 1, and wherein a ratio between a maximum thickness of the center body and the chord length along the centerline has a nominal value of at least 16%. Also, a blended wing body aircraft wherein a region of the aircraft defined by normalized half-span values from 0.1 to 0.2 has a normalized chord having a dimensionless rate of change from −3.5 to −5.1, and a thickness ratio having a rate of change from −0.27 to −0.72.

An evaporation source comprising a melting section (24), a storing section (21), an evaporating section (22), and a jetting section (23). When current is passed through tubular heaters (241, 211), they generate heat and a linear evaporation material (31) is melted. Molten evaporation material (32) moves from a heating container (242) to a heating container (212) and stays there. The evaporation material (32) in the heating container (212) descends from a descending opening (216) along a descending column (224). During the descending process, the evaporation material (32) is evaporated by radiation heat from a tubular heater (221). The vapor of the evaporation material (32) is jetted from a nozzle (232) toward a substrate (61). The tubular heaters (241, 211, 221, 231) are composed of graphite and generate heat when a voltage is applied between electrodes (213, 214), (214, 222), and (232, 233).

A sector-shaped liquid collection disc capable of containing multiple materials comprises a disc body, lug plates, a locating plate and a spacing plate. The disc body is in a conic ring shape and comprises an inner ring plate, an outer ring plate, two side plates and a bottom plate; the inner ring plate and the outer ring plate are obliquely arranged in the vertical direction, so that the cross sectional area of the upper portion of the disc body is larger than that of the lower portion of the disc body, and the size of the outer ring plate in the length direction and the size of the outer ring plate in the height direction are both larger than those of the inner ring plate; the two side plates are vertically arranged; and the lug plates are located on the upper edges of the side plates. The liquid collection area is increased due to the design manner that the upper portion of the disc body is wider than the lower portion; the spacing plate is arranged in the disc body to divide the disc body into regions, the liquid collection disc can collect the chemical materials of different types, and waste does not need to be poured frequently; and the locating plate and the lug plates are designed so that the liquid collection disc can be placed stably, and the situation that the materials are poured accidently is eradicated.

A Francis pump-turbine includes a runner provided with runner blades arranged around in a circumferential direction of a main shaft of the runner, each of the runner blades being supported by a band at a bottom side thereof in a blade height direction and supported by a crown at a head side in the blade height direction, in which the runner blade is formed, at a trailing edge thereof, with a curved portion expanding to the main shaft when the turbine is in operation, the curved portion has a maximum point with respect to a straight line connecting a crown-side trailing edge connecting end at which the trailing edge and the crown are connected and a band-side trailing edge connecting end at which the trailing edge and the band are connected, and an angle α formed by a straight line connecting the maximum point and the crown-side trailing edge connecting end and a straight line connecting the maximum point and the band-side trailing edge connecting end is set to be within a range of α≦150°.