Abstract: The invention discloses a synthesis method and device for rapidly producing lactide at high yield. The method comprises: adding a single component of lactic acid or two components of lactic acid and catalyst, passing the mixture through a mixer to enter an oligomer preparation system, increasing a residence time through bottom circulation, synthesizing oligomeric lactic acid, and passing a gas-phase component through a rectification system. With the adoption of the device, the lactide is capable of being efficiently synthesized, crude lactide with a yield of 94% to 98% is capable of being obtained.

Abstract: Apparatuses, systems, and methods for providing maximum transmit power control when utilizing multiple radio access technologies. For example, a wireless communication device comprising two cellular radios may intend to transmit on the first radio, while concurrently transmitting on the second radio. To ensure compliance with a maximum transmit power limitation, the device may determine an allowed transmit power level of the first radio, representing a difference between the maximum transmit power limitation and the current transmit power level being transmitted by the second radio. The device may also determine a threshold power level for a communication by the first radio. If the allowed transmit power level meets the threshold power level, then the device may transmit the first communication having a power level between the threshold power level and the allowed transmit power level. Otherwise, the device may forego transmission of the first communication.

Abstract: A method for multi-target multi-camera tracking includes: performing multi-target tracking on a video captured by each of multiple cameras, to extract a tracklet for each target appearing in the video, wherein multiple tracklets for multiple targets are extracted on the basis of multiple videos; extracting a feature for each tracklet; determining orientation of each tracklet based on orientation of the target relative to the camera; dividing the multiple tracklets into multiple groups based on the determined orientations; performing clustering on tracklets in each group based on the extracted features, such that tracklets corresponding to the same target are aggregated into an initial set; performing merging among initial sets obtained by performing clustering on respective groups, such that tracklets corresponding to the same target and having different orientations are merged into a final set; and using the tracklets in the final set as tracking information for the corresponding target.

Abstract: The disclosure relates to a method, device and storage medium for processing a target track. According to an embodiment, the method comprises: determining a candidate customer track set of a receipt data group corresponding to one of a plurality of shopping receipts; counting, for each track, the number of sold items matching the track in location in a sold item set indicated by the receipt data group, as a first location matching count of the track; counting, for each track, the number of sold items matching track points of interest in a set of track points of interest of the track in location in the sold item set, as a second location matching count of the track; and determining a customer track corresponding to the receipt data group based on first location matching counts and second location matching counts of a plurality of tracks in the candidate customer track set.

Abstract: A foldable electronic device includes a first casing, a second casing, a hinge structure and a foldable display. The hinge structure connects the first casing and the second casing, and includes a plurality of supporting blocks, a plurality of first hinge blocks and a plurality of second hinge blocks. The supporting blocks are arranged side by side between the first casing and the second casing. The first hinge blocks and the second hinge blocks are respectively arranged at two sides of the supporting blocks. One of the first hinge blocks connects two of the supporting blocks adjacent to each other. One of the second hinge blocks connects two of the supporting blocks adjacent to each other. The foldable display includes a first bonding portion secured to the first casing, a second bonding portion secured to the second casing and a foldable portion aligned to the hinge structure.

Abstract: A device package includes a first die comprising a semiconductor substrate; an isolation layer on the semiconductor substrate, wherein the isolation layer is a first dielectric material; a first dummy via penetrating through the isolation layer and into the semiconductor substrate; a bonding layer on the isolation layer, wherein the bonding layer is a second dielectric material that has a smaller thermal conductivity than the first dielectric material; a first dummy pad within the bonding layer and on the first dummy via; a dummy die directly bonded to the bonding layer; a second die directly bonded to the bonding layer and to the first dummy pad; and a metal gap-fill material between the dummy die and the second die.

Abstract: A method includes bonding a first semiconductor die to a semiconductor substrate; bonding a second semiconductor die to the semiconductor substrate, wherein the second semiconductor die is laterally separated from the first semiconductor die by a gap; filling the gap between the first semiconductor die and the second semiconductor die with a metal material to form a thermally conductive region; and depositing a first dielectric layer over the first semiconductor die, the second semiconductor die, and the thermally conductive region.

Abstract: A fin structure is on a substrate. The fin structure includes an epitaxial region having an upper surface and an under-surface. A contact structure on the epitaxial region includes an upper contact portion and a lower contact portion. The upper contact portion includes a metal layer over the upper surface and a barrier layer over the metal layer. The lower contact portion includes a metal-insulator-semiconductor (MIS) contact along the under-surface. The MIS contact includes a dielectric layer on the under-surface and the barrier layer on the dielectric layer.

Abstract: A portable electronic device including a first body, a second body and a supporting mechanism is provided. The first body has a bottom surface and an opening located at the bottom surface. The second body is pivoted to the first body and has a rear surface and a magnetic part located at the rear surface. The supporting mechanism is disposed in the first body corresponding to the opening. The rear surface of the second body is rotated toward the bottom surface of the first body to allow the supporting mechanism to be magnetically attracted to the magnetic part. Afterwards, the rear surface of the second body is rotated away from the bottom surface of the first body, and the supporting mechanism is driven by the second body to move out of the first body via the opening. When the supporting mechanism is locked, a support shaft supports the second body.

Abstract: A head-mounted display includes a display host, a head belt base, a first lateral head belt, a second lateral head belt, an auxiliary head belt, a knob, a first driving component and a second driving component. The head belt base is connected to the display host through the first and second lateral head belts and the auxiliary head belt. The knob is pivoted to the head belt base, and the knob is coupled to the first and second lateral head belts through the first driving component and is coupled to the auxiliary head belt through the second driving component. The knob synchronously drives the first and second driving components, to drive the first and second lateral head belts through the first driving component and drive the auxiliary head belt through the second driving component. Alternatively, the knob drives one of the first driving component and the second driving component.

Abstract: Methods of fusion bonding semiconductor dies in packaged semiconductor devices and packaged semiconductor devices formed by the same are disclosed. In an embodiment, a semiconductor package includes a first die including a semiconductor substrate and a through via extending through the semiconductor substrate; a second die bonded to the first die, the second die including a bond pad, the bond pad being physically and electrically coupled to the through via by metal-to-metal bonds; and an encapsulating material on the first die and laterally encapsulating the second die.

Abstract: A pick-and-place mechanism for a stylus, applicable for a portable electronic device, is provided. The portable electronic device has a housing. The pick-and-place mechanism for the stylus includes a moving member, a latch assembly, and a switch element. The moving member is movably disposed in the housing. The stylus is adapted to be inserted into the housing and locked with the moving member to move synchronously. The latch assembly is disposed in the housing and switches between a lock state and an unlock state. In the lock state, the latch assembly locks the stylus in the housing. In the unlock state, the latch assembly moves at least part of the stylus out of the housing. The switch element is electrically connected to the latch assembly to drive the latch assembly to switch between the lock state and the unlock state.

Abstract: Process and apparatus for recovering a product stream from a waste plastic feedstock and reducing the endpoint of the product stream is provided. A polymer oil is produced as a product stream by pyrolyzing the waste plastic feedstock in a pyrolysis reactor to produce a pyrolysis reactor effluent and passing the reactor effluent stream to a contact condensing column. In the contact condensing column, the pyrolysis reactor effluent stream is separated into a vapor product stream and a liquid product stream. The vapor product stream is recovered from the condensing column and the liquid product stream is passed back to the pyrolysis reactor for further reduction.

Abstract: A foldable electronic apparatus with an adjusting bracket includes a first body having a rail and steps disposed along the rail, a second body pivotally connected to the first body to pivot and be unfolded and folded relative thereto, a first supporting member having first and second ends opposite to each other, and a second supporting member having third end and fourth ends opposite to each other. The first end is pivotally connected to the first body. The second end is pivotally connected to the second supporting member and located between the third and fourth ends. The third end is movably coupled to the rail. The first and second supporting members and the second body form a linkage mechanism, so the first and second supporting members pivot relative to the first body. The steps limit the third end to generate a unique moving path on the rail.

Abstract: An image capturing device including a casing, an image capturing module disposed in the casing, a positioning member slidably disposed in the casing, a memory alloy spring disposed in the casing, a restoring spring disposed in the casing, a shielding member corresponding to the image capturing module and slidably disposed in the casing, and a switch slidably disposed on the casing and connected to the shielding member is provided. Two ends of the memory alloy spring are respectively connected to the positioning member and the casing. Two ends of the restoring spring are respectively connected to the positioning member and the casing, and the memory alloy spring and the restoring spring are respectively located at two opposite sides of the positioning member. The shielding member is connected to the positioning member and is configured to block or unblock a light path of the image capturing device.

Abstract: An electronic apparatus includes a host, a main display, a keyboard, an auxiliary display, and a supporting mechanism. The main display is pivotally connected to the host. The keyboard is slidably disposed on the host. The auxiliary display is disposed on the host and is arranged side by side with the keyboard. The auxiliary display includes a movable end and a lifting end, the keyboard contacts the movable end, and the movable end is slidably connected to the host. The supporting mechanism includes a first link, a second link, and a third link. The first link is slidably connected to the host and is pivotally connected to the second link. The second link is pivotally connected to the host and is pivotally connected to the third link. The third link is pivotally connected to the lifting end.

Abstract: A foldable electronic apparatus with an adjusting bracket includes a first body having a rail and steps disposed along the rail, a second body pivotally connected to the first body to pivot and be unfolded and folded relative thereto, a first supporting member having first and second ends opposite to each other, and a second supporting member having third end and fourth ends opposite to each other. The first end is pivotally connected to the first body. The second end is pivotally connected to the second supporting member and located between the third and fourth ends. The third end is movably coupled to the rail. The first and second supporting members and the second body form a linkage mechanism, so the first and second supporting members pivot relative to the first body. The steps limit the third end to generate a unique moving path on the rail.

Abstract: Process and apparatus for recovering a product stream from a waste plastic feedstock and reducing the endpoint of the product stream is provided. A polymer oil is produced as a product stream by pyrolyzing the waste plastic feedstock in a pyrolysis reactor to produce a pyrolysis reactor effluent and passing the reactor effluent stream to a contact condensing column. In the contact condensing column, the pyrolysis reactor effluent stream is separated into a vapor product stream and a liquid product stream. The vapor product stream is recovered from the condensing column and the liquid product stream is passed back to the pyrolysis reactor for further reduction.

Abstract: A process is provided for utilizing polypropylene-containing waste plastic. The process provides pyrolyzing a plastic feed in a pyrolysis reactor to obtain a pyrolysis effluent stream. The process further provides passing the pyrolysis effluent stream to a distillation column to obtain a C9 hydrocarbons rich stream which is also dimethylheptenes rich and then passing the C9 hydrocarbons rich stream to a reforming unit to provide a reformate stream. The process further provides passing the reformate stream to a transalkylation unit to provide a mixed-xylenes stream.

Abstract: A process is provided for utilizing polypropylene-containing waste plastic. The process provides pyrolyzing a plastic feed in a pyrolysis reactor to obtain a pyrolysis effluent stream. The process further provides passing the pyrolysis effluent stream to a distillation column to obtain a C9 hydrocarbons rich stream which is also dimethylheptenes rich and then passing the C9 hydrocarbons rich stream to a reforming unit to provide a reformate stream. The process further provides passing the reformate stream to a transalkylation unit to provide a mixed-xylenes stream.