摘要:
The optical waveguide coupler comprises a structure (1) of a number of elongated narrow optical waveguide strips (2), which consist respectively of a front area (3), a center area (4) and a coupling area (5). The center area (4) has respective transition areas (6) and (7) to the corresponding area (3) or (5). A gap (9) in the front areas (3) provided between two adjoining strips (2) is larger than the thickness of the narrow strips (2). The front faces (8) of the front areas (3), and the front faces of the coupling areas (5) are embodied to be as smooth as possible, wherein all strips form a stack in the coupling area (5). The gaps are pits which result from etching of an Si substrate with the aid of a DRIE etching process.
摘要:
New 1,3-disubstituted propanol-(2) derivatives and their nicotinic acid esters of the general formula ##STR1## and their therapeutically acceptable salts, processes for preparing the same and the use thereof and pharmaceutical preparations containing the same for the treatment of hyperlipemia.
摘要:
The invention relates to a reciprocating-piston internal combustion engine (1) having at least one engine cylinder (2, 3) and at least one piston oscillating therein, and having at least one balancing mass (14) which is driven in an oscillating manner by a crankshaft (11) via a crank throw (15) and a compensating connecting rod (16), and which is guided in a translatory fashion by means of a linear guide (17) assigned in each case to the respective balancing mass (14). The linear guide (17) is formed by at least two guide elements (18, 19), which are spaced apart from one another, for the balancing mass (14). A bearing (23) for articulatedly connecting to the compensating connecting rod (16) is formed on the balancing mass (14) in a central portion between the two mutually spaced apart guide elements (18, 19). A mass balancing system is thereby created, which ensures as high a degree of running smoothness as possible, in particular as low a level of vibration as possible, and which at the same time can be realized in as cheap and practicable manner as possible.
摘要:
A micro electrical and/or electronical device, as in particular a hearing aid being worn e.g. behind the ear, is characterized by a housing shell (1), which at least partially comprises a skid-proof surface (11). This skid-proof surface can be made out of an elastomeric polymer or an elastic polymer. Preferably such part (11) of the surface of the housing or shell (1) is being made skid-proof, which is in contact with the skin, while wearing the hearing aid.
摘要:
Process and device for separation of wanted materials from product mixes which contain floating/absorbent material and metals having a ferromagnetic content, particularly from ink cartridges by means of the following steps: coarsely comminuting the product mix, separating the floating/absorbent material from the coarse fraction by means of float/sink separation, and separating metals having a ferromagnetic content from the sinking fraction by means of magnetic separation.
摘要:
Novel acyloxy-phenylethanolamines, characterized in that the acyloxy group or groups are pivaloyloxy or phenylacetyloxy and having a more prolonged sympaticomimetic action than acyloxy-phenylethanolamines known previously, are described together with a method for their manufacture by reduction of the corresponding acyloxy-phenylketo-N-benzyl amines using hydrogen in an aqueous medium over a noble metal catalyst.
摘要:
A device for hardening the teeth (2) of gear wheels by inductive heat treatment provides for at least two hardness inductors (3), which are distributed over the circumference.
摘要:
A micro electrical and/or electronical device, as in particular a hearing aid being worn e.g. behind the ear, is characterized by a housing shell (1), which at least partially comprises a skid-proof surface (11). This skid-proof surface can be made out of an elastomeric polymer or an elastic polymer. Preferably such part (11) of the surface of the housing or shell (1) is being made skid-proof, which is in contact with the skin, while wearing the hearing aid.
摘要:
The invention describes a machining apparatus for skis (5) having a binding (16), comprising a roller table (6) for the skis (5) resting with the running surface on the rollers (9) of the roller table, tools (2) provided between the rollers (9) of the roller table for machining the running surface and the edges of the skis (5), and a feed device for the skis (5) which presses the skis (5) against the rollers (9) of the roller table. In order to provide advantageous constructional conditions it is proposed that the feed device comprises at least one guide (10) for a drivable carriage (11), which guide is provided above the roller table (6) and extends parallel to the same, and which carriage carries holding-down devices (13) for the ski which are distributed over the length of the ski.
摘要:
A remote control unit of wireless operation and/or control of electrical and electronic microdevices, such as communication transceivers and hearing aids. The remote control is contained in a clip-on, slip-on, and/or attachable housing or enclosure. The housing or enclosure is designed to be mounted on an object worn or carried by a person using, for instance, a communication device or hearing aid.