摘要:
A rotary dental drive tool has a rotatable driving member which is connected to a working tool via a self-tightening chuck, the rotatable driving member rotating in a clockwise direction during use. The chuck includes a chuck member having a tool-engaging internal surface portion for receiving a working tool therein, the chuck member having a tapered outer surface portion which is engageable with a tapered inner surface portion of the rotatable driving member so as to press the tool-engaging internal surface portion of the chuck member against the working tool to fixedly engage the working tool with said rotatable driving member via the chuck member. The chuck member has a left-hand threaded screw member on an outer surface portion thereof, which is engageable with a left-hand threaded screw portion on an inner surface portion of the rotatable driving member. The chuck member is rotatable in a left-hand threaded manner into the screw threaded portion of the rotatable driving member so as to cause the tapered surfaces to mutually engage and press the tool-engaging surface portion of the chuck member against the working tool responsive to rotation of the rotatable driving member, whereby the chuck member automatically self-tightens against the working tool during operation of the dental drive tool, and the working tool rotates with the rotatable driving member.
摘要:
A data set may be distributed over many data stores, and a query may be distributively evaluated by several data stores with the results combined to form a query result (e.g., utilizing a MapReduce framework). However, such architectures may violate security principles by performing sophisticated processing, including the execution of arbitrary code, on the same machines that store the data. Instead of processing queries, a data store may be configured only to receive requests specifying one or more filtering criteria, and to provide the data items satisfying the filtering criteria. A compute node may apply a query by generating a request including one or more filter criteria, providing the request to a data node, and applying the remainder of the query (including sophisticated processing, and potentially the execution of arbitrary code) to the data items provided by the data node, thereby improving the security and efficiency of query processing.
摘要:
The invention provides a unitary cordless dental drive apparatus with a cantilever arm extending outward and positioned to allow a dental nose cone to be connected. An activating switch is located at the free end of the cantilever arm in a position that is convenient for manipulation by a user. In a second embodiment, the switch is in the form of a contactor mounted below the cantilever arm to contact the nose cone when pressed. In a third embodiment, a foot pedal connected to a wireless transmitter is provided to send a signal to a receiver located within the handpiece for activating the handpiece.
摘要:
An advanced PCI express board assembly is mountable in a PCI express slot. The assembly includes a main board that is attached to an adapter board by a connector section that includes mechanical and electrical connectors. When the main board is attached to the adapter board, the plane defined by the main board is parallel to, and laterally offset from, the plane defined by the adapter board. The adapter board is connectable to a female PCI express connector in the PCI slot. When the adapter board is connected to the female PCI express connector, the main board plane is perpendicular to the motherboard and is laterally offset from the PCI express slot. More and larger components can be placed on the main board while the assembly remains within the reserved PCI express space.
摘要:
An optical device includes a substrate. a non-planar transparent structure on a first surface of the substrate, the non-planar transparent structure being made of a first material, and a molded refractive surface on the first surface of the substrate adjacent the non-planar transparent structure, the molded refractive surface being made of a second material, different from the first material.
摘要:
Protective flood barrier system on the base of mobile protective flood barriers is offered. Each of these barriers comprises two or more filled elongate sleeves, a web, connecting theirs web and forming means. Envelops of said sleeves and said web are made from flexible impermeable material. These barriers are convenient for protection of separate houses, the extensive areas, as walls of a water basin. They allow reducing wind-induced waves and can be used for repair of earthen dams. The high-efficiency means accelerating installation of barriers are provided.
摘要:
The workflow management system provides automatic management and execution of workflows that include both automated and user-driven actions. The system monitors connected external systems and/or users for the occurrence of events, which trigger the execution of one or more workflow plans. Each workflow plans consists of a plurality of actions and user actions to be performed in a sequential manner. Actions are executed automatically by the system, but user actions are executed asynchronously due to the inclusion of users in the workflow plan. The system handles the asynchronous nature of user actions by maintaining a pending user action database that users can access to view pending user actions, complete user actions, and reserve user actions for subsequent completion.
摘要:
The present invention relates to a method and system for detecting biologically relevant structures in a hierarchical fashion, beginning at a low-resolution and proceeding to higher levels of resolution. The present invention also provides probabilistic pairwise Markov models (PPMMs) to classify these relevant structures. The invention is directed to a novel classification approach which weighs the importance of these structures. The present invention also provides a fast, efficient computer-aided detection/diagnosis (CAD) system capable of rapidly processing medical images (i.e. high throughput). The computer-aided detection/diagnosis (CAD) system of the present invention allows for rapid analysis of medical images the improving the ability to effectively detect, diagnose, and treat certain diseases.
摘要:
A proposed smart batteryless backup device is designed for the reception of data transmitted by controlled equipment, backing up said data in the case of the controlled equipment power failure or in accordance with several program requirements, and also for the subsequent restoration. Proposed device improves trust level of the backup if device is powered by interface signal lines and doesn't have batteries and electrical characteristics of the backup device fluctuating due to humidity and temperature influences as well as during device lifetime.
摘要:
Apparatus for PCI express add-in card retention into PCI express female connector. Said apparatus prevents wiggling of PCI express add-in cards in case the PCI express connector has retention ridge or not.