Abstract: Conventional optical lithography uses masks with static patterns that are expensive and labor intensive to produce. The present disclosure is directed to a programmable optical lithography mask with an array of cells that use a hydrogen-mediated mechanism to tune their optical properties (e.g., transmission, absorption, refractive index, and/or reflectivity) dynamically and reversibly. Each cell in the programmable mask may be individually addressable to produce a large variety of patterns. The programmable mask may be configured for ultra-fine spatial resolution or coarse spatial resolution, facilitating a wide range of applications. The programmable mask may be stable against short wavelength light, such as broadband ultraviolet (UV) light, and can thus act as a light valve for short wavelength light.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of retransmission of sidelink positioning reference signal (PRS). The method comprises transmitting, to a second device, a first sidelink reference signal associated with a positioning or ranging procedure of the first device; and receiving, from the second device, a second sidelink reference signal associated with the positioning or ranging procedure, the second sidelink reference signal comprising information indicating whether the first sidelink reference signal needs to be retransmitted. In this way, the retransmission of the sidelink PRS can be triggered without extra resource consumption and a fast RTT estimation for sidelink ranging and positioning can be achieved.

Abstract: A method includes receiving, by a first user device in a wireless network, an indication of availability of a pre-trained model that estimates a channel between a second user device and a network node; receiving, by the first user device, information relating to the pre-trained model; determining, by the first user device, channel estimation information based at least on the information relating to the pre-trained model; and performing at least one of the following: transmitting, by the first user device, a report to the network node including the channel estimation information; or receiving data, by the first user device from the network node, based on the channel estimation information.

Abstract: A high strength cast magnesium alloy, relating to the technical field of magnesium alloy material preparation. The composition and mass percentage of cast magnesium alloy are: Zn 7.0%, Al 3.0%˜5.0%, Mn 0.3%˜0.5%, RE 0.5%˜1%, the total amount of unavoidable impurities is less than or equal to 0.04%, and the allowance is Mg, wherein the RE includes La and Ce, La and Ce account for 35% and 65% of the total amount of RE, respectively. Among them, Mn, La and Ce are added in the form of Mg-5 wt. % Mn, Mg-30 wt. % La and Mg-30 wt. % Ce intermediate alloys respectively. Then it is prepared through battering, melting, melt purification, pouring and heat treatment. By adding RE, the alloy melt can be purified, and the corrosion resistance and casting performance of the alloy can be increased. The tensile strength of the alloy is 300 MPa˜314 MPa, the elongation is 7%-13%, and the light rare earth content is low, the raw material and processing cost is low, and it is easy to realize mass production.

Abstract: A manufacturing method of a fin semiconductor device comprises: providing a substrate, wherein a fin channel base is patterned on and in contact with the substrate; epitaxially growing a top part of the fin channel base and extending the top part of the fin channel base sideways and upward to form a fin channel core; oxidizing the fin channel base to form a fin channel structure, wherein the fin channel structure comprises the fin channel core surrounded with an oxide layer at the top part of the fin channel base and an intermediate part of the fin channel base under the top part; and removing the oxide layer to expose the fin channel core, wherein the fin channel core suspends over the substrate.

Abstract: In some example embodiments, there may be provided a method that includes receiving, by a machine learning encoder as part of a training phase, channel state information as data samples; generating, by the machine learning encoder, a latent variable comprising a log likelihood ratio value representation for the channel state information, wherein the latent variable provides a lower dimension binary representation when compared to the received channel state information to enable compression of the received channel state information; generating, by the binary sampler, a binary coding value representation of the latent variable, wherein the binary coding value converts the latent variable to a binary form; and generating, by the machine learning decoder, a reconstructed channel state information, wherein the generating is based in part on the binary coding value representation of the latent variable generated by the binary sampler. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: The present application provides a reaction device for improving epitaxial growth uniformity, provided with a main inject port on one side and an exhaust port on the other side, wherein a base is provided between the main inject port and the exhaust port; the reaction cavity is provided with first and second inject pipes; the length directions of the first and second inject pipes are perpendicular to a connecting line between the main inject port and the exhaust port; the lengths of the first and second inject pipes are both equal to the radius of the base; the first and second inject pipes are located in a straight line along the length directions; the first and second inject pipes are each provided with a plurality of holes; and the plurality of holes on the first and second inject pipes are located above the wafer placed on the base.

Abstract: Systems, methods, apparatuses, and computer program products for initialization and operation of intelligent reflecting surface. The method may include transmitting a synchronization signal block burst to a reflection surface device. The method may also include receiving a first measurement report of the synchronization signal block burst received at the reflection surface device. The method may further include determining a transmit beam for a subsequent synchronization signal block burst based on a highest strength of signals in the synchronization signal block burst. In addition, the method may include receiving a second measurement report of the subsequent synchronization signal block burst. Further, the method may include determining an arrival angle of the subsequent synchronization signal block burst at the reflection surface device. The method may also include establishing a connection with the reflection surface device based on the transmit beam and the arrival angle.

Abstract: An amplifying circuit includes a first reconfigurable amplifier configured to selectively operate in a cascode mode or a non-cascode mode, wherein an input of the first reconfigurable amplifier is coupled to a first input of the amplifying circuit, and an output of the first reconfigurable amplifier is coupled to an output of the amplifying circuit. The amplifying circuit also includes a second reconfigurable amplifier configured to selectively operate in the cascode mode or the non-cascode mode, wherein an input of the second reconfigurable amplifier is coupled to a second input of the amplifying circuit, and an output of the second reconfigurable amplifier is coupled to the output of the amplifying circuit.

Abstract: Conventional optical lithography uses masks with static patterns that are expensive and labor intensive to produce. The present disclosure is directed to a programmable optical lithography mask with an array of cells that use a hydrogen-mediated mechanism to tune their optical properties (e.g., transmission, absorption, refractive index, and/or reflectivity) dynamically and reversibly. Each cell in the programmable mask may be individually addressable to produce a large variety of patterns. The programmable mask may be configured for ultra-fine spatial resolution or coarse spatial resolution, facilitating a wide range of applications. The programmable mask may be stable against short wavelength light, such as broadband ultraviolet (UV) light, and can thus act as a light valve for short wavelength light.

Abstract: The invention relates to a method for preparing amorphous particle-modified magnesium alloy surface-gradient composites and pertains to the technical field of composites. The method comprises steps of: holding the temperature at 150˜350° C. for FeCrMoBC amorphous alloy particles; mixing pure magnesium, pure zinc, pure aluminum, pure copper and Mg-5 wt % Mn alloy under continuous protective gases, gradually raising temperature to 720˜760° C. and melting at a constant temperature for 15˜25 min to obtain a magnesium alloy melt; cooling the magnesium alloy melt to 600˜635° C. and starting mechanical stirring; continuing the cooling until the semi-solid temperature is 570˜615° C., slowly adding the above FeCrMoBC amorphous alloy particles, holding for 2˜5 min after mixing evenly, and cooling the crucible with water to obtain an amorphous particle-modified magnesium alloy surface-gradient composite.

Abstract: A reconfigurable amplifier includes a first transistor having a gate coupled to an input of the reconfigurable amplifier, and a source coupled to a ground. The reconfigurable amplifier also includes a gate control circuit, and a second transistor having a gate coupled to the gate control circuit, a source coupled to a drain of the first transistor, and a drain coupled to an output of the reconfigurable amplifier, wherein the gate control circuit is configured to output a bias voltage to the gate of the second transistor in a cascode mode, and output a switch voltage to the gate of the second transistor in a non-cascode mode. The reconfigurable amplifier further includes a load coupled to the output of the reconfigurable amplifier.

Abstract: Certain example embodiments provide systems, methods, apparatuses, and computer program products for associating sensing information with a user (e.g., a cellular user) by, for example, determining information from both a sensing node and a communication node, then associating the a sensed object and the communication node based on the information. Additionally, or alternatively, some embodiments provide systems, methods, apparatuses, and computer program products for radar and sensing-based positioning.

Abstract: In accordance with example embodiments of the present disclosure there is at least a method and apparatus to perform communicating between a network node and a user equipment of a communication network, authorization for the user equipment to join a group of user equipment to enable the user equipment to receive multicast configurations for multicast signaling authorized for the group, wherein the authorization is based on configurations in common between the user equipment and the group of user equipment; and based on the joining, utilizing the configurations in common to produce signaling between the communication network and the user equipment to receive multicast configurations for the multicast signaling authorized for the group.

Abstract: The invention relates to a method for preparing amorphous particle-modified magnesium alloy surface-gradient composites and pertains to the technical field of composites. The method comprises steps of: holding the temperature at 150˜350° C. for FeCrMoBC amorphous alloy particles; mixing pure magnesium, pure zinc, pure aluminum, pure copper and Mg-5 wt % Mn alloy under continuous protective gases, gradually raising temperature to 720˜760° C. and melting at a constant temperature for 15˜25 min to obtain a magnesium alloy melt; cooling the magnesium alloy melt to 600˜635° C. and starting mechanical stirring; continuing the cooling until the semi-solid temperature is 570˜615° C., slowly adding the above FeCrMoBC amorphous alloy particles, holding for 2˜5 min after mixing evenly, and cooling the crucible with water to obtain an amorphous particle-modified magnesium alloy surface-gradient composite.

Abstract: A user equipment includes at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the user equipment to: select radio resources for a first sidelink transmission to a first user equipment based on sidelink control information from a second user equipment, the sidelink control information including at least beam information for a second sidelink transmission by the second user equipment; and perform the first sidelink transmission to the first user equipment on the selected radio resources.

Abstract: A heat dissipating system and a power cabinet are provided. The heat dissipating system includes a cabinet, a first circulating fan and a heat exchanger. The cabinet has an outer circulating air duct and a sealed inner circulating air duct. The air inlet and the air outlet connected to the outside are arranged in the outer circulating air duct, and the heat exchanger is arranged in the cabinet and configured to exchange heat between the inner circulating air duct and the outer circulating duct. The first circulating fan is arranged outside the air inlet of the outer circulating air duct or arranged inside the outer circulating air duct, and configured to supply air to the outer circulating air duct. The heat dissipation efficiency of the inner circulating air duct is improved.

Abstract: A reconfigurable amplifier includes a first transistor having a gate coupled to an input of the reconfigurable amplifier, and a source coupled to a ground. The reconfigurable amplifier also includes a gate control circuit, and a second transistor having a gate coupled to the gate control circuit, a source coupled to a drain of the first transistor, and a drain coupled to an output of the reconfigurable amplifier, wherein the gate control circuit is configured to output a bias voltage to the gate of the second transistor in a cascode mode, and output a switch voltage to the gate of the second transistor in a non-cascode mode. The reconfigurable amplifier further includes a load coupled to the output of the reconfigurable amplifier.

Abstract: Systems, methods, apparatuses, and computer program products for initialization and operation of intelligent reflecting surface. The method may include transmitting a synchronization signal block burst to a reflection surface device. The method may also include receiving a first measurement report of the synchronization signal block burst received at the reflection surface device. The method may further include determining a transmit beam for a subsequent synchronization signal block burst based on a highest strength of signals in the synchronization signal block burst. In addition, the method may include receiving a second measurement report of the subsequent synchronization signal block burst. Further, the method may include determining an arrival angle of the subsequent synchronization signal block burst at the reflection surface device. The method may also include establishing a connection with the reflection surface device based on the transmit beam and the arrival angle.