Apparatus (10) for vertical (72) slip forming of concrete walls and columns (55). The apparatus comprises an attachment portion (23) for a frame with a slipform assembly inside comprising an extrusion form providing side walls defining a cavity and actuators (20) to adjust the position of the side walls forms essentially arranged along the longitudinal axis of the slipform assembly. A concrete supply (45) is connected with the slipform assembly for delivering concrete (52, 53, 54) to that cavity through the top open surface. A mechanism (20) is provided for vertically displacing (72) that slipform assembly incrementally relative to the frame. Thus, a concrete structure (55) having a vertical orientation is continuously cast. The actuators (20) adjust the position of the side walls during the incremental vertical movement (72) of the slipform assembly to create new forms for a column or wall with variable diameter, variable form and/or twisted.

In an example method of forming an optical film for an eyepiece, a curable material is dispensed into a space between a first and a second mold surface. A position of the first mold surface relative to the second mold surface is measured using a plurality of sensors. Each sensor measures a respective relative distance along a respective measurement axis between a respective point on a planar portion of the first mold surface and a respective point on a planar portion of the second mold surface. The measurement axes are parallel to each other, and the points define corresponding triangles on the first and second mold surfaces, respectively. The position of the first mold surface is adjusted relative to the second mold surface based on the measured position, and the curable material is cured to form the optical film.

In an example method of forming an optical film for an eyepiece, a curable material is dispensed into a space between a first and a second mold surface. A position of the first mold surface relative to the second mold surface is measured using a plurality of sensors. Each sensor measures a respective relative distance along a respective measurement axis between a respective point on a planar portion of the first mold surface and a respective point on a planar portion of the second mold surface. The measurement axes are parallel to each other, and the points define corresponding triangles on the first and second mold surfaces, respectively. The position of the first mold surface is adjusted relative to the second mold surface based on the measured position, and the curable material is cured to form the optical film.

A method, an apparatus and a computer readable-medium for monitoring a continuous steel casting process where molten steel is poured from a ladle into a tundish to be transferred through an exit nozzle into a mold. The method includes obtaining a critical superheat temperature value for the molten steel; measuring temperature values of the molten steel over a time period; determining superheat temperature values corresponding to the measured temperature values by comparing the measured temperature values with a liquidus temperature of the molten steel; and predicting a forecast time instance when the critical superheat temperature value is reached.

An embodiment can provide a polyamide-imide film and a method for producing same, the film comprising a polyamide-imide polymer formed by polymerizing an aromatic diamine compound, an aromatic dianhydride compound and a dicarbonyl compound, wherein, in an XRD graph with a section in which 2θ=8° to 32° as a baseline, the film shows a peak area of 50% or above around 2θ=23° with respect to a peak area seen around 2θ=15°.

An embodiment can provide a polyamide-imide film and a method for producing same, the film comprising a polyamide-imide polymer formed by polymerizing an aromatic diamine compound, an aromatic dianhydride compound and a dicarbonyl compound, wherein, in an XRD graph with a section in which 2θ=8° to 32° as a baseline, the film shows a peak area of 50% or above around 2θ=23° with respect to a peak area seen around 2θ=15°.

This invention relates to an impression-taking pad (10) for taking an impression (20) of an ear canal (30) by an impression-taking material, having a lateral end (el) to be arranged away from a tympanic membrane (35) in said ear canal (30); and a medial end (em) to be arranged proximate to said tympanic membrane (35). The impression-taking pad (10) comprises an outer body (2) tapering from said lateral end (el) to said medial end (em). The impression-taking pad (10) further comprises an inner body (3) for releasable engagement with a tool (11, 12) for visual inspection of the ear canal (30), the inner body (3) being configured to support insertion of the impression-taking pad (10) in the ear canal (30) by the tool (11, 12). The impression-taking pad (10) comprises a duct (5) at least partially defmed by the inner body (3), forming at least part of an optical path for visual inspection of the ear canal (30); wherein the optical path further comprises an inspection window (6), closing said duct (5), configured to support inspection of the ear canal (30) during the insertion of the impression-taking pad (10) in the ear canal (30); The impression-taking pad (10) is further configured to form an integral part of said impression (20). The present invention also relates to a method of taking an impression by the above defmed impression-taking pad (10); as well as to a correlated impression-taking system comprising an aptly modified tool (11, 12) to cooperate with such an impression-taking pad (10).

A composite material molding method is provided for forming a composite material. The molding includes disposing a reinforcing base material in a cavity inside an openable and closable mold, injecting resin into the cavity in a state in which a clamping pressure is exerted on the mold and curing the resin. When injecting the resin into the cavity, the injection pressure of the resin is adjusted between a first pressure that is higher than the clamping pressure and a second pressure that is lower than the clamping pressure, and the injection pressure of the resin is lowered from the pressure that is higher than the clamping pressure to the pressure that is lower than the clamping pressure at least once. The resin is thereby injected such that the pressure inside the cavity does not exceed the clamping pressure from the start of injection to the end of injection of the resin.

A composite material molding method is provided for forming a composite material. The molding includes disposing a reinforcing base material in a cavity inside an openable and closable mold, injecting resin into the cavity in a state in which a clamping pressure is exerted on the mold and curing the resin. When injecting the resin into the cavity, the injection pressure of the resin is adjusted between a first pressure that is higher than the clamping pressure and a second pressure that is lower than the clamping pressure, and the injection pressure of the resin is lowered from the pressure that is higher than the clamping pressure to the pressure that is lower than the clamping pressure at least once. The resin is thereby injected such that the pressure inside the cavity does not exceed the clamping pressure from the start of injection to the end of injection of the resin.

A composite material molding method is provided for forming a composite material. The molding includes disposing carbon fiber in a cavity inside an openable and closable mold, injecting resin into the cavity in a state in which a clamping pressure is exerted on the mold and curing the resin. When a threshold value of the pressure inside the cavity is set to a pressure that is lower than the clamping pressure and the resin is injected into the cavity while exerting an injection pressure that is equal to or greater than the clamping pressure on the resin until the pressure inside the cavity reaches the threshold value. Then, after the pressure inside the cavity has reached the threshold value, the inside of the cavity is suctioned.