Abstract: The present invention provides a method for mechanical grinding of an SOI wafer and a mechanical grinding apparatus. The method includes a mechanical grinding process including a coarse grinding process, in which a feed speed of a coarse grinding wheel and a rotational speed of a grinding table satisfy a predefined condition, thereby allowing for a damaged area proportion on a side of a carrier wafer away from a device wafer to be lower than a predetermined threshold during thinning of the device wafer on a side thereof away from the carrier wafer by mechanical grinding to a predetermined thickness. The present invention overcomes the problems that significant backside damage may be caused to an SOI wafer during its mechanical grinding, which may affect the performance and reliability of a device fabricated from the wafer.

Abstract: A portable biosensor for detecting and quantifying a target molecule in a biological sample and method of use include a biosensor fabricated with a recognition layer with an imprinted polymer, an electrode electrically coupled to the recognition layer, and a logic circuit that may include a processor and non-transitory memory with computer executable instructions embedded thereon, wherein the imprinted polymer is shaped to have a profile that substantially matches a profile of the target molecule, such that the target molecule can form-fit and bind to the imprinted polymer, thus changing an electrical property of the polymer layer that may be detected to identify the presence of the target molecule.

Abstract: A method of estimating a number of lung function indices of an individual. The method includes transmitting an ultrasound signal toward a chest of the individual from a speaker of a smartphone while the individual is holding the smartphone in a hand of the individual; receiving in a microphone of the smartphone a reflected signal reflected from the chest of the individual in response to the ultrasound signal; extracting a number of features from the reflected signal; and providing the number of features to a neural network regression model, wherein the neural network regression model estimates the number of lung function indices based on the number of features and based on a non-linear correlation between chest wall motion and human lung function.

Abstract: Systems and methods for a wearable stress response assessment system may include an iontophoresis module, a multi-inlet microfluidic sweat sampling component, and a sensor patch configured to detect concentrations of electrolytes and metabolites present in a sweat sample and monitor physiological signs prevalent in a human patient. An iontophoresis module may provide for stimulation of a biofluid sample. A biofluid may be a sweat sample. Stimulation may be achieved via electrostimulation and/or application of a stimulating agent. A microfluidic sweat sampling component may include adhesive and PDMS layers with carefully designed inlets and channels for efficient collection and sampling of biofluid. Enzymatic and ISE biosensors may quickly and accurately identify concentrations of key biomarkers present in a biofluid sample which may assess, in combination with monitored physiological signs, a human patient's stress response.

Abstract: An authentication method and an electronic device. The method includes sending, by a first device, in response to a first device determining that a distance between the first device and a second device reaches a first distance, a first request to the second device, so that the second device determines whether wireless communication between the first and second device is relayed before the first device performs a service, determining, in response to the distance between the first and second device reaching a second distance, whether success ciphertext sent by the second device is received, wherein the success ciphertext is sent in response to the second device determining that wireless communication between the first and second device is not relayed and the second distance being less than the first distance, and performing the service in response to reception and successful verification of the success ciphertext.

Abstract: A bioresorbable acoustic microrobot (BAMs) designed for precision medicine applications. Fabricated through two-photon polymerization, BAMs incorporate 7-diethylamino-3-thenolycoumarin, poly(ethylene glycol) diacrylate, pentaerythritol tetraacrylate, and Fe3O4 nanoparticles for magnetic steering, alongside encapsulated therapeutic agents. These microrobots feature an asymmetric dual-opening bubble-trapping cavity, enhancing acoustic propulsion and ultrasound imaging capabilities. The unique dual-surface layer chemistry ensures efficient operation in biological fluids, while hydrolysis-driven biodegradability minimizes residual harm. BAMs demonstrate sustained drug release, precise navigation, and effective tumor targeting, offering significant advancements over conventional microrobots in therapeutic interventions.

Abstract: A method is provided. The method includes: obtaining global position and orientation information of a first trajectory point; determining at least one pair of second trajectory points based on the global position and orientation information; obtaining a relative position and orientation estimation information and a relative position and orientation measurement information of each pair of second trajectory points; and calculating a local rotation offset at the first trajectory point based on the relative position and orientation estimation information and the relative position and orientation measurement information of each pair of second trajectory points in the at least one pair of second trajectory points to correct the global position and orientation information.

Abstract: Disclosed is an industrial method for simultaneously preparing Stevia rebaudiana chlorogenic acid and stevioside. The industrial method includes carrying out alcohol extraction on Stevia rebaudiana which is used as a raw material, and then adjusting the feed liquid state to allow chlorogenic acid to be in a free molecular state; carrying out extraction separation by a water-insoluble moderate-polarity organic solvent; enriching the Stevia rebaudiana chlorogenic acid in an organic layer; and enriching the stevioside in a water layer.

Abstract: A method includes, when a first card in a secure element (SE) system of a terminal is in an inactive state after the terminal is powered off, subsequent to receiving, using a near-field communication (NFC) system, an instruction for selecting the first card that is received from a card reading device, the terminal determines, based on the instruction, that the first card allows automatic card switching, and activates the first card using the SE system, and after the terminal receives again, using the NFC system, the instruction for selecting the first card from the card reading device, the first card of the terminal executes a transaction service with the card reading device.

Abstract: A method and system for vector retrieval acceleration includes at least one calculation module and at least one sorting acceleration module. Each calculation module includes a first receiving end and a second receiving end for receiving query vector blocks and center vector blocks respectively, and performs operations on the received query vector blocks and center vector blocks, so as to obtain distance calculation results between each query vector and all center vectors, sorting acceleration module. The at least one calculation module corresponds one-to-one with the at least one sorting acceleration module. Each sorting acceleration module receives the distance calculation results output by the corresponding calculation module, sorts the distance calculation results, so as to obtain a sorting intermediate state, and then stores sorting intermediate states into a system memory.

Abstract: A benzimidazole heteroatom-containing spiro compound and a medicinal use thereof are provided. Activity test results show that the benzimidazole heteroatom-containing spiro compound provided by the present disclosure has a significant antiproliferative activity for human liver tumor cells HepG2, human colon cancer cells HCT116, and/or human gastric adenocarcinoma cells AGS, and most of the compounds involved in the present disclosure exhibit a stronger antiproliferative activity than cisplatin and/or Nutlin-3a. Therefore, the benzimidazole heteroatom-containing spiro compound provided by the present disclosure has a prospect of being developed into an antitumor drug, such as for liver cancer, colon cancer, or gastric cancer.

Abstract: Apparatus and methods for lighting. The apparatus may include a first jewel and a second jewel. The first jewel may support the second jewel by a first link. The first jewel may support the second jewel by a second link. The first link and second links may be configured for transmission of current between the first jewel and the second jewel. The first and second links may be the only attachments of the second jewel to the first jewel. The first jewel may be configured to selectively emit three different colors of light. The second jewel may be configured to selectively emit three different colors of light. The second jewel may be configured to selectively emit the three different colors of the first jewel. The selection may be performed by a user using a switch.

Abstract: The present disclosure relates to secure deployment of model weights from a generative artificial intelligence (GenAI) platform to a cloud service. The method includes accessing the model metadata and a set of weights of a GenAI model associated with a GenAI platform. These model weights may be encrypted using a first encryption key that may be provided in the model metadata. These encrypted model weights may be decrypted based on the model metadata by utilizing the first encryption key from the model metadata. Each key may be associated with the specific type of GenAI model. Before storing the model weights from the GenAI platform cloud tenancy to a cloud storage in GenAI home region, the model weights may be encrypted again by utilizing a second encryption key. This encryption by the cloud may enable independent control over the sensitive information during transit and storing.

Abstract: Techniques are described for determining whether to process a job request. An example, method can include a device receiving a first message from a first stream, the first message comprising a job request from a tenant and a tenant identifier. The device can detect a base number of units permissible to be processed for the tenant over a unit of time. The device can detect a processing speed of a downstream processor of an asynchronous pipeline. The device can detect a number of messages in a second stream, the downstream processor configured to receive messages from the second stream. The device can determine a target throughput and a historical throughput for the tenant. The device can compare the target throughput with the historical throughput to determine whether to process the job request. The device can schedule the job request for processing based at least in part on the comparison.

Abstract: Disclosed herein are compositions and methods for acutely raising nitric oxide levels in a subject. In one example, the composition can include, an effective amount of a NOS dependent source of nitric oxide; an effective amount of a NOS independent source of nitric oxide; and an effective amount of a myeloperoxidase inhibitor; wherein the composition acutely raises nitric oxide levels in a subject above a level provided by the available sources of nitric oxide in the subject prior to administration of the composition. Further presented is a method of treating a subject for a condition or disorder that is response to nitric oxide therapy, including: acutely raising nitric oxide levels in a subject by simultaneously increasing biosynthesis of nitric oxide, increasing nitrate/nitrite levels, and inhibiting meyloperoxidase activity.

Abstract: Provided are techniques for generating expression products using one or more nucleic acid concatemers that include tandem repeats of a nucleic acid sequence encoding the expression product or products. In one embodiment, different expression products may be co-expressed using a concatemer mixture of a first nucleic acid concatemer and a second nucleic acid concatemer having a predefined ratio to one another.

Abstract: A transducer, a transduction apparatus, and a terminal are provided, and belong to the field of device technologies. The transducer includes a substrate layer, a first electrode layer, a piezoelectric layer, a second electrode layer, a first protective layer, and a second protective layer that are sequentially arranged. A sum of target parameters of the piezoelectric layer, the second electrode layer, the first protective layer, and the second protective layer is a positive integer multiple of n, where 0.1?n?0.4. A target parameter of at least one of the film layers in the transducer is a ratio of a thickness of the at least one film layer to a wavelength of a sound wave at an operating frequency of the transducer when the sound wave is transmitted at the at least one film layer.

Abstract: The application relates to the technical field of grinding wheels. In order to overcome the defects of the grinding wheels in the art, e.g. the difficulty in chip removal and the short service life, the application provides a lightweight combined type grinding wheel, comprising a bottom plate, a cover plate and an adapter. The bottom plate and the cover plate are coaxially fitted and are fixed by the adapter. A plurality of bosses are formed on the surface of the bottom plate facing away from the cover plate. The plurality of bosses are evenly spaced around the axis of the bottom plate. Abrasive grains are laid on the top surface of each boss. The bosses are spaced from each other, and a chip groove is formed between two adjacent bosses. The chip groove is used to discharge the grinding chips generated by grinding.

Abstract: Systems and methods described herein for encoding of video frames based on an amount of text contained within each block of the frame. For each frame, text detection is performed to identify text contained within each block of the frame and each pixel position within the frame. The text detection outputs, for each block and pixel position, an amount of textual content with respect to a preset threshold amount. Based on the output, only the blocks and pixel positions having an amount of text content equal to or greater than the threshold amount are selected as candidates for block matching. For other blocks block matching processes are bypassed.

Abstract: Apparatus, methods and systems for lighting control are provided. The apparatus may include a transceiver configured to receive lighting control information from a power source. The apparatus may include lighting control circuitry. The lighting control circuitry may receive a first voltage from the power source. The lighting control circuitry may convert the first voltage into a second voltage. The lighting control circuitry may obtain a light level from the lighting control information. The apparatus may include a connector. The connected may transmit the second voltage and a current corresponding to the light level to a light emitting diode (“LED”) light source. The transceiver, the lighting control circuitry, and the connector may be disposed in a housing. The LED light source may be disposed in a fixture. The lighting control circuitry may be structurally separate from and in electronic communication with the fixture.