摘要:
The present invention provides a driving system comprising two actuators for moving a stage through two elastic connectors; and a general apparatus/device comprising such a driving system, such as a machine tool, an analytical instrument, an optical microscope, and an apparatus of charged-particle beam such as electron microscope and an electron beam lithographical apparatus. When used in an electron microscope, the stage can be used as a specimen stage or a plate having apertures for electron beam to pass through. The novel stage driving system exhibits numerous technical merits such as simpler structure, better manufacturability, improved cost-effectiveness, and higher reliability, among others.
摘要:
A quick locking device having a fixing mount; a fixed pressing groove and a movable pressing groove arranged opposite thereto on the fixing mount; a pulling rod connected to the fixed pressing groove and the movable pressing groove, so as to adjust the opening and closing of the movable pressing groove; a pivot shaft; a cam lever pivotally connected to the pulling rod through the pivot shaft, so as to adjust the opening or closing distance between the fixed pressing groove and the movable pressing groove; and a rotational positioning locking mechanism installed in the cam lever, wherein the rotational positioning locking mechanism comprises a positioning groove formed on the pivot shaft, a positioning member arranged in the cam lever and movably engaged with the positioning groove, and a locking operation member controlling the movement of the positioning member.
摘要:
The present disclosure relates to various vehicle frame assemblies and methods of manufacturing the same. The vehicle frame assemblies have rails composed of dissimilar materials.
摘要:
An aluminum tubular beam is assembled to a steel box frame rail with a steel sleeve. The sleeve is connected by a crimp joint or by a hem flange to the tubular beam. The steel sleeve may be effectively welded to the steel box frame rail to which it is assembled. An adhesive may be provided between the sleeve and the beam.
摘要:
The subject matter of this specification can be implemented in, among other things, a computer-implemented method including receiving a first input from a publisher who has established an account with a content-distributing entity to publish content from others, the first input being generated based on a publisher media item configured to present at least part of the content and including code from the publisher media item for requesting the content. The method further includes obtaining the content from the content-distributing entity including using the code to generate a request for the content. The method further includes generating an analysis view available to the publisher, the analysis view generated using the content.
摘要:
The error correction capability of block codes can be doubled if error locations are known. Prior art approaches for error location detection always involve adding dedicated redundant data which then are evaluated to yield error location information. The present invention proposes and describes how error location information in the form of clues is derived from given DC control bits that are anyway present in a data stream.
摘要:
A method of manufacturing a vehicle frame, includes: forming compatible threads on a first rail composed of a first material and a second rail composed of a second material; forming a pair of locators on the first and second rails, said locators configured to indicate an alignment condition of the first rail and second rail when screwed together; and screwing together the first rail and second rail.
摘要:
Some embodiments of the present invention derive an ionospheric phase bias and an ionospheric differential code bias (DCB) using an absolute ionosphere model, which can be estimated from data obtained from a network of reference stations or obtained from an external source such as WAAS, GAIM, IONEX or other. Fully synthetic reference station data is generated using the ionospheric phase bias and/or the differential code bias together with the phase leveled clock and ionospheric-free code bias and/or MW bias.
摘要:
In designing an integrated circuit on a die having a set of die bumps, a method to generate a set of lumped circuit parameter values associated with the set of die bumps, based upon distances between the set of die bumps and the center of the die, the method also based upon a sample-data distribution function of a die bump distance variable and a sample-data distribution function of a lumped circuit parameter variable. Other embodiments are described and claimed.
摘要:
The error correction capability of block codes can be doubled if error locations are known. Prior art approaches for error location detection always involve adding dedicated redundant data which then are evaluated to yield error location information. The present invention proposes and describes how error location information in the form of clues is derived from given DC control bits that are anyway present in a data stream.