Abstract: Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes clay heteroadduct, prepare from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a heterocoagulation agent. By limiting the amount of heterocoagulation reagent relative to the colloidal smectite clay as described herein, the smectite heteroadduct support-activator is a porous and amorphous solid which can be readily isolated from the resulting slurry by a conventional filtration process, and which can activate metallocenes and related catalysts toward olefin polymerization. Related compositions and processes are disclosed.

Abstract: A semiconductor package including one or more dam structures and the method of forming are provided. A semiconductor package may include an interposer, a semiconductor die bonded to a first side of the interposer, an encapsulant on the first side of the interposer encircling the semiconductor die, a substrate bonded to the a second side of the interposer, an underfill between the interposer and the substrate, and one or more of dam structures on the substrate. The one or more dam structures may be disposed adjacent respective corners of the interposer and may be in direct contact with the underfill. The coefficient of thermal expansion of the one or more of dam structures may be smaller than the coefficient of thermal expansion of the underfill.

Abstract: A method and a control circuit for performing synchronization on playback of multiple electronic devices are provided, where the multiple electronic devices include a master device and a slave device. The method includes: utilizing the master device to receive audio data from a far-end device to be master audio data, and transmitting the master audio data to the slave device to be slave audio data, where the slave device generates ultrasound data according to the slave audio data, to make the slave device play the slave audio data and the ultrasound data; utilizing a calibration circuit to estimate a delay value between the ultrasound data received by a microphone of the master device and the master audio data; and utilizing a delay circuit to control a delay of the master audio data according to the delay value, to generate master output audio data for being played by the master device.

Abstract: A paper scrap pushing structure of a paper shredder, having a paper pushing unit, with a spindle having a longitudinal axis, a spindle flap coupled along the longitudinal axis to the spindle; and a paddle pushing segment, coupled to the spindle flap. The spindle is arranged under a paper outlet of the paper shredder and is in linkage with a paper shredder cutter shaft through a synchronous transmission device. When the rotating shaft rotates, the rotating shaft drives the paddle pushing segment to move in the circumferential direction along with the spindle flap, removing paper scraps at the top of a paper scrap pile in a shredded paper waste bin.

Abstract: A voice capturing method includes following operations: storing, by a buffer, voice data from a plurality of microphones; determining, by a processor, whether a target speaker exists and whether a direction of the target speaker changes according to the voice data and target speaker information; inserting a voice segment corresponding to a previous tracking direction into a current position in the voice data to generate fusion voice data when the target speaker exists and the direction of the target speaker changes from the previous tracking direction to a current tracking direction; performing, by the processor, a voice enhancement process on the fusion voice data according to the current tracking direction to generate enhanced voice data; performing, by the processor, a voice shortening process on the enhanced voice data to generate voice output data; and playing, by a playing circuit, the voice output data.

Abstract: An audio playback method includes the following steps: receiving an ultrasound signal via a microphone; processing the ultrasound signal to obtain a characteristic value of the ultrasound signal; obtaining time lag information based on the characteristic value; and controlling audio delay according to the time lag information.

Abstract: A structure for grounding an extreme ultraviolet mask (EUV mask) is provided to discharge the EUV mask during the inspection by an electron beam inspection tool. The structure for grounding an EUV mask includes at least one grounding pin to contact conductive areas on the EUV mask, wherein the EUV mask may have further conductive layer on sidewalls or/and back side. The inspection quality of the EU mask is enhanced by using the electron beam inspection system because the accumulated charging on the EUV mask is grounded. The reflective surface of the EUV mask on a continuously moving stage is scanned by using the electron beam simultaneously. The moving direction of the stage is perpendicular to the scanning direction of the electron beam.

Abstract: An audio playback method includes the following steps: receiving an ultrasound signal via a microphone; processing the ultrasound signal to obtain a characteristic value of the ultrasound signal; obtaining time lag information based on the characteristic value; and controlling audio delay according to the time lag information.

Abstract: A voice capturing method includes following operations: storing, by a buffer, voice data from a plurality of microphones; determining, by a processor, whether a target speaker exists and whether a direction of the target speaker changes according to the voice data and target speaker information; inserting a voice segment corresponding to a previous tracking direction into a current position in the voice data to generate fusion voice data when the target speaker exists and the direction of the target speaker changes from the previous tracking direction to a current tracking direction; performing, by the processor, a voice enhancement process on the fusion voice data according to the current tracking direction to generate enhanced voice data; performing, by the processor, a voice shortening process on the enhanced voice data to generate voice output data; and playing, by a playing circuit, the voice output data.

Abstract: Disclosed are devices and methods useful for confined-channel digital microfluidics that combine high-throughput droplet generators with digital microfluidic for droplet manipulation. The present disclosure also provides an off-chip sensing system for droplet tracking.

Abstract: A paper scrap pushing structure of a paper shredder, having a paper pushing unit, with a spindle having a longitudinal axis, a spindle flap coupled along the longitudinal axis to the spindle; and a paddle pushing segment, coupled to the spindle flap. The spindle is arranged under a paper outlet of the paper shredder and is in linkage with a paper shredder cutter shaft through a synchronous transmission device. When the rotating shaft rotates, the rotating shaft drives the paddle pushing segment to move in the circumferential direction along with the spindle flap, removing paper scraps at the top of a paper scrap pile in a shredded paper waste bin.

Abstract: A bearingless motor is provided. The bearingless motor primarily includes a rotor module and a stator. The rotor module includes a plurality of rotor elements, and the stator includes a housing that forms a receiving space for receiving the rotor module, wherein the rotor module is rotatable relative to the stator.

Abstract: A rotor lamination for a motor having a motor air gap width value is disclosed. The rotor lamination includes a main-body portion, a plurality of edges and a plurality of magnet-receiving slots. The main-body portion is centered at a central axis of the motor. The edges are disposed around outside of the main-body portion. The magnet-receiving slots accommodate a plurality of magnets of the motor and locate around the central axis. The magnet-receiving slot has a slot width value in an outward direction extending from the central axis. The magnet-receiving slot and the corresponding edge form a magnet depth value. The magnet depth value is greater than a sum value of a first rate constant multiplied by the slot width value and then subtracted the motor air gap width value, and is less than the sum value of the first rate constant multiplied by the slot width value and then plus the motor air gap width value.

Abstract: An integrated apparatus of water-cooled motor and driver includes a motor housing and a driver housing. The motor housing includes a motor-housing inner wall, a motor-housing outer wall, an inlet, a heat-dissipation flow channel and an outlet. The motor-housing inner wall surrounds and receives a motor assembly. The motor-housing outer wall surrounds the motor-housing inner wall, and the exterior thereof has a first connecting surface. The inlet is disposed on the motor-housing outer wall. One end of the heat-dissipation flow channel is connected to the inlet, the end contacts and is received between the motor-housing inner wall and the motor-housing outer wall. The outlet is connected to the other end of the heat-dissipation flow channel and is disposed on the motor-housing outer wall. The driver housing receives a driver assembly, and the exterior thereof has a second connecting surface connected with and bonded to the first connecting surface.

Abstract: A device for protecting an umbilical stump-catheter interface, includes: a shield having a wall that defines a cavity for accommodating an umbilical stump, wherein the shield further includes a base for attachment to a patient; and an opening at the shield for allowing an umbilical catheter to extend therethrough. A method for protecting an umbilical stump-catheter interface, includes: providing a device having a shield with a wall that defines a cavity for accommodating an umbilical stump, wherein the shield further includes a base for attachment to a patient, and wherein the device further includes an opening at the shield; shielding the umbilical stump from an environment using the shield; and accommodating an umbilical catheter using the opening at the shield.

Abstract: A rotor assembly for a motor is disclosed. The motor has a minimum air gap width value. The rotor assembly includes magnets, a main-body portion, magnet-receiving slots and arc-trimming portions. Each of the magnet-receiving slots is disposed around a central axis of the main-body portion and locates through the main-body portion for accommodating the corresponding magnet therein. The magnet-receiving slot has a slot width value. The arc-trimming portions spatially correspond to the magnet-receiving slots. Each of the arc-trimming portions and a geometric symmetry center of the corresponding magnet-receiving slot together form an arc-trimming depth value. The arc-trimming depth value is greater than a sum value of a rate constant multiplied by the slot width value and then subtracted 2 times of the minimum air gap width value, and is less than the sum value of the rate constant multiplied by the slot width value and then plus 2 times of the minimum air gap width value.

Abstract: A device for sound localization includes a spatial feature generator, a voice detector, an angle selector, and an angle retriever. The spatial feature generator generates M spatial feature signals according to signals of N microphones of a microphone array. The voice detector generates at least one voice detection signal according to at least one of the signals of the N microphones. The angle selector outputs a candidate angle signal according to the M spatial feature signals to indicate a candidate direction of sound. The angle retriever generates a sound detection result according to the M spatial feature signals to indicate whether any sound source exists, and then outputs an estimated angle signal indicative of a direction of sound according to the sound detection result, the at least one voice detection signal, and the candidate angle signal.

Abstract: A device for protecting an umbilical stump-catheter interface, includes: a shield having a wall that defines a cavity for accommodating an umbilical stump, wherein the shield further includes a base for attachment to a patient; and an opening at the shield for allowing an umbilical catheter to extend therethrough. A method for protecting an umbilical stump-catheter interface, includes: providing a device having a shield with a wall that defines a cavity for accommodating an umbilical stump, wherein the shield further includes a base for attachment to a patient, and wherein the device further includes an opening at the shield; shielding the umbilical stump from an environment using the shield; and accommodating an umbilical catheter using the opening at the shield.

Abstract: A driving mechanism is provided. The driving mechanism connects with a frame and a driving wheel by two ends thereof. The driving mechanism includes a motor housing, a motor assembly and a driving controller. The motor housing supports the frame and defines an inner space. The motor assembly is detachably assembled with the motor housing and located in the inner space. The motor assembly drives the driving wheel. The driving controller is detachably assembled with the motor housing, located in the inner space, and electrically connected with the motor assembly.

Abstract: An automatic paper shredder includes a shredder cover, a paper holding box, a shell, a paper holding plate, a paper holding plate inlet, a paper shredding component, a drive motor, a paper pressing plate, a paper pick-up component, and a waste paper bin. The paper pressing effect is improved through a spliced paper pressing plate, and the paper pick-up effect is improved through a damping plate, a soft rubber piece, and a convex rib, and thus, efficiency is improved. The automatic paper shredder has the characteristics of being highly automated, convenient to use, safe, reliable, structurally simple and cost-effective.