Abstract: A ship's hull designed for traffic in icy waters has a general form defining a bottom that is substantially horizontal in longitudinal section and has a central longitudinal keel line, and, at both sides of the bottom, sides that extend upward from the bottom. The bottom of the hull is formed with a depression at each side of the keel line. Each depression has a rear edge oriented obliquely relative to the keel line and extending to the rear of the hull from an inner location close to the keel line to an outer location farther from the keel line and at which the depression is open towards one side of the hull. The rear edge of each depression forms a substantially vertical guide surface for ice chunks under the hull's bottom.

Abstract: The invention is related to a cylindrical shell structure (1) for paper machine press section, said shell structure being arranged to enclose at least four support rolls (5, 6, 7). According to the invention the shell structure (1) has at least three layers so that the outer face (4) and inner face (2) of the shell (1) are of a resilient, durable material, and the core (3) is of an elastic material having a high shear elasticity.

Abstract: A glazed ceramic dinner plate has inner and outer foot-rings that protrude from its underside and have their bottom surfaces at upper and lower horizontal levels when the plate is disposed horizontally. The foot-ring having its bottom surface at the upper level is glazed on its bottom surface and the other foot-ring is not glazed.

Abstract: The invention concerns a method in calendering, wherein one or several pairs of rolls are employed through which the web to be calendered runs. One roll in each pair of rolls is a hard roll which is a heated metal roll, and the other roll in each pair of rolls is a roll provided with a resilient coating. In the method, the face of the roll with a resilient coating is also heated to a high temperature, advantageously to the same temperature as the heated metal roll. The invention also concerns a roll used in the method as well as the use of the method and of the roll.

Abstract: An article is manufactured from a substrate of a material that exhibits the pyroelectric effect by depositing a film containing a selected material in a first state over a front surface of the substrate. At least one electrode is formed on the film, portions of the film being exposed around the electrode. The exposed portions of the film are subjected to a treatment such that they are converted from the first state to a second state, in which the material has a resistivity that lies within a desired range of values.

Abstract: As assembly space cover for installation modules, especially foamed ones, in the sanitary field, in the form of a molded apron (5) to be joined to the bottom side of an installation module (1) with its outside surface substantially flush with the front surface of the installation module. A metal reinforcement (7) substantially resistant to bending and embedded in the foam of the apron (5) imparts strength and dimensional stability to the apron.

Abstract: A reciprocating internal combustion engine operates by drawing at least substantially only air into the cylinder during the suction stroke and, at the final phase of the compression stroke, injecting gaseous fuel into the cylinder under high pressure. At least part of the fuel is directed to a hot glow body stationarily arranged within the combustion chamber of the cylinder to cause ignition.

Abstract: Elevated temperature envelope forming includes enclosing a part blank and form tool within an envelope sealed against the atmosphere, heat treating the combination while forming pressure holds the envelope and part against the form tool, and allowing part cool down to occur in an inert atmosphere with forming pressure removed. The forming pressure is provided by evacuating the envelope and may be aided by differential force applied between the envelope and the form tool.

Abstract: A conversion cell for an ozone generator comprises a first electrode that is hollow and has a right cylindrical internal surface, a second electrode that has a right cylindrical external surface of smaller radius than the internal surface of the first electrode, and an insulator sleeve having coaxial right cylindrical internal and external surfaces. The insulator sleeve is disposed coaxially within the first electrode and the second electrode is disposed coaxially within the insulator sleeve, whereby first and second gas spaces are defined between the insulator sleeve and the first and second electrodes respectively. The first and second gas spaced are sealed at opposite respective ends of the conversion cell and are in open communication with each other.

Abstract: A method of fabricating an integrated circuit comprises providing a heavily compensated substrate having a source region, a drain region and a third region, each of a first conductivity type, and introducing dopant of a second conductivity type into the substrate to surround the third region.

Abstract: A method of testing a length section of optical fiber in order to determine whether the angle between an end face of the length section and a plane perpendicular to a longitudinal axis of the length section of optical fiber is within a predetermined range, comprises positioning the length section of optical fiber so that its longitudinal axis substantially coincides with the optical axis of a camera, selecting at least two test regions on the end face of the fiber, adjusting the position of at least one of a camera, a lens and the length section of optical fiber to focus each of the test regions on the sensing surface of the camera, and comparing the adjustments performed in the preceding step for the two test regions respectively.

Abstract: Integration of engine functions and data communications between an aircraft propulsion module and an airframe is enabled by the use of fiber optic links which multiplex information and control functions without risk of an electrical failure in one portion of the aircraft electronics system propagating to other portions of the aircraft electronic systems.

Abstract: The amount of ionizing radiation to which a thermoluminescent material has been exposed is determined by first cooling the thermoluminescent material and then optically stimulating the thermoluminescent material by exposure to light. Visible light emitted by the thermoluminescent material as it is allowed to warm up to room temperature is detected and counted. The thermoluminescent material may be annealed by exposure to ultraviolet light.