Abstract:
Piezoelectric fibers include a polypeptide wherein molecules of the polypeptide have electric dipole moments that are aligned such that the piezoelectric fiber provides a piezoelectric effect at an operating temperature. A piezoelectric component provides a plurality of piezoelectric fibers, each comprising an organic polymer. A method of producing piezoelectric fibers includes electrospinning a polymer solution to form a fiber and winding the fiber onto a rotating target in which the rotating target is electrically grounded. An acoustic sensor includes a plurality acoustic transducers, wherein the plurality of acoustic transducers are structured and arranged to detect a corresponding plurality of vector components of an acoustic signal, and at least one of the plurality of acoustic transducers comprises a piezoelectric fiber.
Abstract:
A muscle relief device comprises a main body, at least one sensor unit, at least one relief part and at least one control unit. The relief part including at least one massage unit for massaging muscles of a user. The sensor unit includes at least one contact sensor for detecting the contact area of the user. The control unit connects the relief part and the sensor unit, receiving a detected data from the sensor unit and controlling operation modes of the relief part. The relief part, the sensor unit, and the control unit are arranged on the main body.
Abstract:
A continuous piezoelectric film can include a plurality of fibers, each fiber including a polypeptide, wherein molecules of the polypeptide have electric dipole moments that are aligned such that the piezoelectric fiber provides a piezoelectric effect. The continuous piezoelectric film has at least one piezoelectric constant d31 or d33 that is at least 1 pC/N. The continuous piezoelectric film can be prepared hot pressing a mat of aligned piezoelectric fibers.
Abstract:
Systems and methods provide for discontinuous download of media files. The system and method work within the bounds of simple, existing, open protocols and the media files served are playable by standard media playback clients. The method is driven by a request to play a media file from any location within the media file, including sections of the media file that the initial download has not yet reached. The method comprises downloading the media file in segments corresponding to the location in the media file that the user desires to view and merging the segments. The method allows for tracking of which segments have been downloaded and which have not.
Abstract:
Embodiments of the present invention are directed to systems and methods for controlling the temperature of an internal device while reducing or minimizing the involvement of the host. Thus, some of the heat monitoring and remediation work may be offloaded to the actual device itself. The device may monitor its own temperature and, in the event of high temperature, perform device specific heat reduction actions without involving the host. Furthermore, the device may, upon detecting temperature within a predefined range, alert the host of a high temperature condition in order to allow the host to perform temperature reduction measures. Also, the device may, upon detecting temperature within a predefined range, alert the host of an impending device shutdown and shut the device down. In addition, the device may periodically save its temperature into non-volatile memory in order to create a temperature log.
Abstract:
A method for forming a high-voltage drain metal-oxide-semiconductor (HVD-MOS) device includes providing a semiconductor substrate; forming a well region of a first conductivity type; and forming an embedded well region in the semiconductor substrate and only on a drain side of the HVD-MOS device, wherein the embedded region is of a second conductivity type opposite the first conductivity type. The step of forming the embedded well region includes simultaneously doping the embedded well region and a well region of a core regular MOS device, and simultaneously doping the embedded well region and a well region of an I/O regular MOS device, wherein the core and I/O regular MOS devices are of the first conductivity type. The method further includes forming a gate stack extending from over the embedded well region to over the well region.
Abstract:
A reverse-extension MOS (REMOS) device and a method for forming the same are provided. The REMOS device includes a gate dielectric over a semiconductor substrate, a gate electrode on the gate dielectric, a lightly doped drain/source (LDD) region in the semiconductor substrate and having a portion extending under the gate electrode, a deep source/drain region in the semiconductor substrate, and an embedded region enclosed by a top surface of the semiconductor substrate, the LDD region, and the deep source/drain region. The embedded region is of a first conductivity type, and the LDD region and the deep source/drain region are of a second conductivity type opposite the first conductivity type. The embedded region and the LDD region are preferably formed simultaneously with the formation of a LDD region and a pocket region of an additional MOS device, respectively.
Abstract:
A speed measuring device for a beach buggy includes a chain wheel rotated by the engine of a buggy, a connecting tube firmly connected to the chain wheel, a bearing fitted in the connecting tube, a gear set, and a fixing unit combined together. The fixing plate, the gear set, the connecting tube and the bearing are assembled together with an elongate rod with thread formed in the lower end portion and then fixed with the chain wheel. Then a hole base is formed on a rear small diameter portion of the gear set for a cable to extend in to transmit speed of the rotating chain wheel to a speedometer for a user to know the speed of the beach buggy.
Abstract:
An oscillating disk dental hygiene device of the present invention includes a quick coupling assembly having a first stage adapted to be coupled to a water source fixture and a second stage adapted to be quickly attachable and detachable from the first stage; a main housing defining a water chamber and having an inlet and an outlet, the inlet being coupled with the second stage of the quick coupling assembly; and a disk defining at least one opening therein and being disposed in the water chamber, the disk adapted to oscillate between a first substantially neutral position and a second position substantially obstructing the outlet when water entering the water chamber via the inlet has a pressure within a predetermined range, the oscillating disk creating a pulsating water stream exiting the water chamber via the outlet. A hand held nozzle is coupled to the outlet and is adapted to concentrate and direct the pulsating water stream into a pulsating water jet.