Abstract: Examples of authentication and firewall enforcement for Internet of Things (IoT) devices are described. In an example, a request to authenticate an IoT device coupled to a network device is sent to an authentication server. The request includes a Media Access Control (MAC) address of the IoT device. A response indicative of successful authentication of the IoT device based on the MAC address is received from the authentication server. The response includes a first attribute indicative of a network address of a remote server to connect with the IoT device. A firewall role for the IoT device is generated based on a combination of an Internet Protocol (IP) address of the IoT device and the first attribute. The IoT device is associated with the firewall role.

Abstract: The present invention provides a nanocomposite hydrogel and a preparation method thereof, and relates to the field of nanocomposite materials. The nanocomposite hydrogel is prepared by mixing completely gelatinized short amylose with an aqueous gelatin solution having a mass concentration of 8%-14%, and then cooling. The present invention utilizes the nanoparticles formed by in-situ self-assembly of the short amylose in the aqueous gelatin solution as a reinforcing agent, and the nanoparticles are uniformly distributed in the hydrogel to form a stable crystallization system, such that the prepared nanocomposite hydrogel exhibits optimal mechanical properties in terms of viscoelasticity, hardness, compressive stress, etc. The preparation process of the present invention is green and environmentally friendly, simple and efficient, and can be widely applied to the fields of food, cosmetics and medicine.

Abstract: An embodiment is a method including forming a raised portion of a substrate, forming fins on the raised portion of the substrate, forming an isolation region surrounding the fins, a first portion of the isolation region being on a top surface of the raised portion of the substrate between adjacent fins, forming a gate structure over the fins, and forming source/drain regions on opposing sides of the gate structure, wherein forming the source/drain regions includes epitaxially growing a first epitaxial layer on the fin adjacent the gate structure, etching back the first epitaxial layer, epitaxially growing a second epitaxial layer on the etched first epitaxial layer, and etching back the second epitaxial layer, the etched second epitaxial layer having a non-faceted top surface, the etched first epitaxial layer and the etched second epitaxial layer forming source/drain regions.

Abstract: A semiconductor device includes: a first fin and a second fin extending from a substrate and an epitaxial source/drain region. The epitaxial source/drain region includes a first portion grown on the first fin and a second portion grown on the second fin, and the first portion and the second portion are joined at a merging boundary. The epitaxial source/drain region further includes a first subregion extending from a location level with a highest point of the epitaxial source/drain region to a location level with a highest point of the merging boundary, a second subregion extending from the location level with the highest point of the merging boundary to a location level with a lowest point of the merging boundary, and a third subregion extending from the location level with the lowest point of the merging boundary to a location level with the lowest point of the epitaxial source/drain region.

Abstract: The present disclosure provides an urban river channel direct purification device. The device includes a support wall panel arranged vertically, an upper tray and a lower tray arranged horizontally, an upper end of the support wall panel is connected with the upper tray, a lower end of the support wall panel is connected with the lower tray, the upper tray and the lower tray are respectively semi-circular, several filler biological walls are disposed between the upper tray and the lower tray, a top end of each filler biological wall is fixedly connected with the bottom of the upper tray, a bottom end of each filler biological wall is fixedly connected with the lower tray, and the filler biological wall is arranged along a radial direction of the upper tray/lower tray. The device can purify the water of the river channel through the adsorption material in the device.

Abstract: A power supply structure comprises a housing, a socket and a fan. The housing has a main housing, a terminal housing and a front panel, wherein the terminal housing connected with the main housing. The fan and the terminal housing disposed on one end of the main housing, and the fan attached to the front panel. The socket arranged in parallel with the fan and connected to the terminal housing.

Abstract: Systems and methods are provided for fault detection in a component of a machine during operation. Vibration data is acquired based on a vibration signal output from a sensor associated with the component. The vibration data is analyzed with at least two machine learning models to predict a condition of the component.

Abstract: The present invention discloses a dynamic reliability evaluation method for coupling faults of a middle trough of a scraper conveyor. Approximation precision of a moment-based saddlepoint approximation method and a function attribute of dynamic t-copula are fully utilized, and the dynamic reliability evaluation method for the coupling faults of the middle trough of the scraper conveyor is provided, so that dynamic correlation between failure modes of the middle trough of the scraper conveyor under a small sample condition is more accurately described, and accuracy of dynamic reliability evaluation of the coupling faults of the middle trough of the scraper conveyor is improved.

Abstract: The present invention discloses a dynamic reliability evaluation method for coupling faults of a middle trough of a scraper conveyor. Approximation precision of a moment-based saddlepoint approximation method and a function attribute of dynamic t-copula are fully utilized, and the dynamic reliability evaluation method for the coupling faults of the middle trough of the scraper conveyor is provided, so that dynamic correlation between failure modes of the middle trough of the scraper conveyor under a small sample condition is more accurately described, and accuracy of dynamic reliability evaluation of the coupling faults of the middle trough of the scraper conveyor is improved.

Abstract: The present invention relates to a display device and an assembling method for the same. The assembling method comprises the following steps. A display module is mounted on a cover, and is simultaneously positioned at a specific position on the cover to form a positioning baseline. Then, an outer frame is mounted on the cover, and loops around to form a display space to accommodate the display module. The outer frame has a surrounding part and an abutting part. The surrounding part surrounds and abuts the display module to be positioned on the cover. The abutting part abuts the display module toward the cover. The outer frame is directly formed with the surrounding part, which enables the outer frame to be positioned by the display module, so the assembling steps and the overall structure are simplified to reduce the manufacturing cost and the assembling time.

Abstract: A mixer for mixing and degassing fluids includes a revolution device having a revolution base to be driven for rotation; a first spin device connected to the revolution base of the revolution device; a first barrel connected to the first spin device to be spun by the first spin device; an transmitting coil electrically connected to a power source to generate a time-vary magnetic field; and a receiving coil connected to the revolution base of the revolution device and electrically connected to the first spin device, wherein the receiving coil rotates with the revolution base. The receiving coil receives the power from the time-vary magnetic field of the transmitting coil and produces an electromotive force to be supplied to the first spin device.

Abstract: A laptop computer and a chassis thereof are disclosed. The chassis comprises a display case, a host case, a shielding member and a connecting member. The display case includes an upper cover having a first notch and a screen frame connected with the upper cover. The host case includes a keyboard frame having a second notch and a bottom cover having a third notch. The bottom cover is connected with the keyboard frame. The first, second and third notches together form an accommodation space to accommodate at least one pivot structure. The display case is rotatable relative to the host case through the pivot structure. The shielding member is configured to cover at least part of the first notch. The connecting member is disposed between the display case and the host case, and located in the accommodation space. The pivot structure is located in the connecting member.

Abstract: A device includes a fin extending from a substrate; a gate stack over and along sidewalls of the fin; a gate spacer along a sidewall of the gate stack; an epitaxial source/drain region in the fin and adjacent the gate spacer, the epitaxial source/drain region including a first epitaxial layer on the fin, the first epitaxial layer including silicon and arsenic; and a second epitaxial layer on the first epitaxial layer, the second epitaxial layer including silicon and phosphorus, the first epitaxial layer separating the second epitaxial layer from the fin; and a contact plug on the second epitaxial layer.

Abstract: A resonant converter is disclosed, including: a primary side circuit including at least one set of primary side switches, where the primary side circuit is configured to receive an input voltage; a resonant network coupled to the primary side circuit; a transformer having a primary side winding and a secondary side winding, where the primary side winding is coupled to the resonant network; a secondary side circuit including at least one set of secondary side switches, where the secondary side circuit is coupled to the secondary side winding of the transformer; and a control block that controls the secondary side switches according to the input voltage, the output voltage and the current detection signal, so that the secondary side winding of the transformer is short-circuited during a preset time interval before operating state of the primary side switches changes.

Abstract: A large-tonnage skip anti-blocking system includes a skip, wherein two parallel rows of guide rails are fixed to upper and lower shaft walls of a shaft on two sides of the skip correspondingly, a plurality of pulleys are mounted on the guide rails in a matched mode, impact plates are mounted between the upper and lower pulleys, front plates of the impact plates are mounted between the upper and lower sets of pulleys in the front row, rear plates of the impact plates are mounted between the upper and lower sets of pulleys in the back row, a length of rib plates of the impact plates is greater than a width of the skip, hydraulic cylinder bases and vibration motors are mounted on outer sides of the rib plates at intervals.

Abstract: A tension balance system for steel wire ropes on a friction hoisting driving end of an ultra-deep well includes a friction wheel, left and right guiding wheels, left and right steel wire ropes, left and right adjustment wheels, left and right rewinding wheels, left and right adjustment oil cylinders, a hydraulic pipeline, a pump station, a pipeline switch group, left and right hoisting containers, balance ropes, and reels. The friction wheel is disposed in the middle, the left and right adjustment wheels and the left and right rewinding wheels are circularly distributed around the friction wheel, the left and right guiding wheels, the left and right adjustment wheels, and left and right rewinding wheels are all symmetrically disposed on two sides of the friction wheel; both a quantity of left steel wire ropes and a quantity of right steel wire ropes are even numbers more than 2.

Abstract: Techniques and architectures for using embedded scripting to support network device functionality. The format and a content of a network packet is evaluated to determine whether a receiving device is configured to decode the format and content of the network packet. Identification information for the non-classified network device and a payload from the network packet is sent to a remote server device. At least a code segment to enable decoding of the network packet format and content is received from the remote server device. The non-classified network device is classified to result in a classified network device based on decoding of the network packet utilizing the code segment. Data priority tags are applied to device traffic from the classified network device utilizing the code segment.

Abstract: Disclosed are a keyboard structure and an electronic device using the keyboard structure. The electronic device includes a first display screen, a second display screen, and a keyboard structure. The keyboard structure is slidably disposed on the first display screen in a direction. The keyboard structure includes a keyboard module, a wiping cloth, and a scraper. The keyboard module includes a long side edge perpendicular to the direction. The wiping cloth is disposed on a lower surface of the keyboard module and is in contact with the display screen. The scraper is disposed at the long side edge of the keyboard module and is in contact with the display screen.

Abstract: The present invention provides a reflective condensing interferometer for focusing on a preset focus. The reflective condensing interferometer includes a concave mirror set, a convex mirror, a light splitting element, and a reflecting element. The concave mirror set has first and second concave surface portions which are oppositely located on two sides of a central axis passing through the preset focus and are concave on a surface facing the central axis and the preset focus. Light is preset to be incident in parallel to the central axis in use. The convex mirror is disposed between the concave mirror set and the preset focus on the central axis, and is convex away from the preset focus. The light splitting element vertically intersects with the central axis between the convex mirror and the preset focus. The reflecting element is disposed between the light splitting element and the convex mirror.

Abstract: An electronic medical cannabis prescription fulfillment system, and method of operating thereof, are disclosed. The system includes an interface component to receive a medical cannabis prescription; and a processor operable to: identify a user account corresponding to a patient; generate an alert when no user account is identified, otherwise, automatically verify patient data with the stored user data; display at least some product data of each medical cannabis product available for purchase; receive a first purchase order directly from the patient to purchase a first medical cannabis product from a first licensed seller; complete the first purchaser order; receive a second purchase order to purchase a second medical cannabis product from a second licensed seller different from the first licensed seller; and in response to receiving the second purchase order, automatically validate the medical cannabis prescription and complete the second purchase order when the medical cannabis prescription is validated.