Abstract: A blended cellulose acetate fiber comprising at least two cellulose acetate constituents and a wet spinning process for producing the same from blended cellulose acetate dope.

Abstract: Continuous miniaturization of semiconductor devices is the key to boosting modern electronics development. However, such downscaling strategy has been rarely utilized in photoelectronics and photovoltaics. Here, in this work, a full-vdWs 1D p-Te/2D n-Bi2O2Se heterodiode with a rationally-designed nanoscale ultra-photosensitive channel is reported. Enabled by the dangling bond-free mixed-dimensional vdWs integration, the Te/Bi2O2Se type-II diodes show a high rectification ratio of 3.6×104. Operating with 100 mV reverse bias or in a self-power mode, the photodiodes demonstrated excellent photodetection performances, including high responsivities of 130 A W?1 (100 mV bias) and 768.8 mA W?1 (self-power mode), surpassing most of the reports of other heterostructures. More importantly, a superlinear photoelectric conversion phenomenon is uncovered in these nanoscale full-vdWs photodiodes, in which a model based on the in-gap trap-assisted recombination is proposed for this superlinearity.

Abstract: Embodiments of this specification provide a user identity-based payment method and apparatus. The user identity-based payment method includes: obtaining a payment request of a payment user that is sent by a merchant system, where the payment request carries an identity type corresponding to a payment channel for submitting the payment request; detecting whether the payment user performs identity verification authorization for the identity type; if yes, verifying whether user identity information obtained based on the identity verification authorization matches the identity type; and if the user identity information matches the identity type, determining a payment policy corresponding to the identity type in a merchant subscription configuration, and performing payment processing for the payment request based on the payment policy.

Abstract: A method of use, a system and a system kit of low dose ethyl alcohol to induce blood-brain barrier (BBB) opening for delivery of a non-BBB permeable substance to a brain of a subject includes the steps of: administering an ethyl alcohol and the non-BBB permeable substance to a brain and inducing a homogeneous distribution of the non-BBB permeable substance in the brain. The ethyl alcohol reaches the brain to induce a transient and reversible BBB opening for about 120 minutes so that the non-BBB permeable substance can penetrate the BBB to reach the brain. The non-BBB substance includes a therapeutic agent, a diagnostic agent, or a prophylactic agent. The use of low concentrations of ethyl alcohol allows the BBB to be restored to normal without causing significant harmful effects.

Abstract: The present invention discloses an elastic heat spreader for chip packaging, a packaging structure and a packaging method. The heat spreader includes a top cover plate and a side cover plate that extends outward along an edge of the top cover plate, wherein the top cover plate is configured to be placed on a chip, and at least a partial region of the side cover plate is an elastic member; and the elastic member at least enables the side cover plate to be telescopic in a direction perpendicular to the top cover plate. According to the present invention, a following problem is solved: delamination between the heat spreader and a substrate as well as the chip due to stress generated by different thermal expansion coefficients of the substrate, the heat spreader and the chip in a packaging process of a large-size product.

Abstract: A method of fabricating semiconducting tellurium (Te) nanomesh. The method includes the steps of preparing a substrate, vaporizing Te powders under a first temperature; and growing Te nanomesh on the substrate using the vaporized Te powders under a second temperature. The first temperature is higher than the second temperature. The rationally designed nanomesh exhibits exciting properties, such as micrometer-level patterning capacity, excellent field-effect hole mobility, fast photoresponse in the optical communication region, and controllable electronic structure of the mixed-dimensional heterojunctions.

Abstract: A method of inducing blood-brain barrier (BBB) opening for delivery of a non-BBB permeable substance to a brain of a subject includes the steps of: administering an ethyl alcohol at 0.01%-5% v/v and the non-BBB permeable substance via microcatheter to a target area of the brain leading from an intracerebral artery and inducing a homogeneous distribution of the non-BBB permeable substance in the target area. The ethyl alcohol reaches the target area to induce a transient and reversible BBB opening for about 120 minutes so that the non-BBB permeable substance can penetrate the BBB to reach the target area. The non-BBB substance includes a therapeutic agent, a diagnostic agent, or a prophylactic agent. The use of low concentrations of ethyl alcohol allows the BBB to be restored to normal without causing significant harmful effects.

Abstract: A preparation method of a konjac granule includes the following steps: step 1: dissolving a konjac powder in hot water; step 2: subjecting a mixed solution obtained in step 1 to sterilization; step 3: conducting enzymatic hydrolysis at 50° C. to 70° C. for 2 h to 6 h; step 4: conducting enzymatic inactivation; step 5: conducting homogenization at 10 Mpa to 45 Mpa; step 6: adding a fully-dissolved sodium alginate solution and a flavor-modulating substance to a mixed solution obtained in step 5, and thoroughly mixing; and step 7: calcification and gelation: adding a calcium solution to a mixed solution obtained in step 6 for gelation to obtain the konjac granule. The preparation method improves the compactness of the konjac granule, increases a gel strength, and is conducive to extending a shelf life of a product.

Abstract: A transcranial ultrasound headset can hold one or more transducer probe assemblies. The headset can be adjusted to match various human head sizes to securely place the ultrasound probe assemblies on the target areas of a patient's head. In an embodiment, transducer probe assemblies can be placed over a patient's left and right temporal areas, and a third transducer can be placed over the patient's inion. Design techniques and construction materials ensure that transducer probe assemblies are held securely during a transcranial ultrasound session while enhancing patient comfort. An adjustable headband strap around the head is attached to a forehead assembly. The headband strap supports one or more rings. Rings hold ultrasound probe assemblies. The forehead assembly supports pre-built settings for quick size adjustment, allowing rings to be positioned over target areas. An adjustable top strap and chin strap provide additional stability and size customization.

Abstract: A method of inducing blood-brain barrier (BBB) opening for delivery of a non-BBB permeable substance to a brain of a subject includes the steps of: administering an ethyl alcohol at 0.01%-5% v/v and the non-BBB permeable substance via microcatheter to a target area of the brain leading from an intracerebral artery and inducing a homogeneous distribution of the non-BBB permeable substance in the target area. The ethyl alcohol reaches the target area to induce a transient and reversible BBB opening for about 120 minutes so that the non-BBB permeable substance can penetrate the BBB to reach the target area. The non-BBB substance includes a therapeutic agent, a diagnostic agent, or a prophylactic agent. The use of low concentrations of ethyl alcohol allows the BBB to be restored to normal without causing significant harmful effects.

Abstract: A cranial probe assembly comprises an ultrasound transducer packaged into a probe. A stable probe holder in the form of a fixed ring is positioned on a patient's head. The position of the probe relative to the patient's head is adjustable with five degrees of freedom comprising cartesian coordinates x and y, the z-axis normal to the probe, and two orientation angles orthogonal to the z-axis. The adjustments assure the efficacy of an ultrasound procedure.

Abstract: A method of inducing blood-brain barrier (BBB) opening of for delivery of a non-BBB permeable substance to a subject includes the steps of: administering an ethyl alcohol at 0.015%-5% v/v into a blood stream of the subject via intra-arterial injection, intracardiac injection, or intra-arterial injection guided by ultrasound, wherein said ethyl alcohol reaches a brain of the subject to induce opening of blood-brain barrier so that the non-BBB permeable substance is capable of penetrating the blood-brain barrier to reach the brain of the subject. The non-BBB substance includes a therapeutic agent, a diagnostic agent, or a prophylactic agent. The use of low concentration of ethyl alcohol can induce a temporary BBB opening within 240 minutes after administration so that the non-BBB substance can be deliver to the brain during the time frame of BBB opening. Since ethyl alcohol is water soluble, the non-BBB substance can also be administered concurrently.

Abstract: A method of inducing blood-brain barrier (BBB) opening for delivery of a non-BBB permeable substance to a subject includes the steps of: administering an ethyl alcohol at 0.01%-5% v/v into an arterial bloodstream via arterial injection guided by ultrasound and inducing a homogeneous distribution of the non-BBB permeable substance in a brain parenchyma. The ethyl alcohol reaches a brain of the subject to induce a transient opening of blood-brain barrier so that the non-BBB permeable substance can penetrate the blood-brain barrier to reach the brain and its concentration can be adjusted precisely by serial dilution. The non-BBB substance includes a therapeutic agent, a diagnostic agent, or a prophylactic agent. The use of low concentration of ethyl alcohol can induce a temporary BBB opening for about 120 minutes and then the BBB can be restored to normal without causing significant harmful effect.

Abstract: A method of inducing blood-brain barrier (BBB) opening for delivery of a non-BBB permeable substance to a subject includes the steps of: administering an ethyl alcohol at 0.01%-5% v/v into an arterial bloodstream via arterial injection guided by ultrasound and inducing a homogeneous distribution of the non-BBB permeable substance in a brain parenchyma. The ethyl alcohol reaches a brain of the subject to induce a transient opening of blood-brain barrier so that the non-BBB permeable substance can penetrate the blood-brain barrier to reach the brain and its concentration can be adjusted precisely by serial dilution. The non-BBB substance includes a therapeutic agent, a diagnostic agent, or a prophylactic agent. The use of low concentration of ethyl alcohol can induce a temporary BBB opening for about 120 minutes and then the BBB can be restored to normal without causing significant harmful effect.

Abstract: A high-reliability and high-robustness routing method for MSR-WSNs is provided, including: S1: generating an initial dynamic topological structure of MSR-WSNs; S2: determining a cluster head node for any maritime search and rescue node, and joining a corresponding cluster to obtain a set of clusters; S3: calculating a predicted forward distance of a maritime search and rescue data packet of a target node; S4: calculating the correct reception rate among nodes under the communication link of the maritime search and rescue environment; S5: calculating and sorting the priority of each relay node from high to low according to the priority; S6: when carrying out the task of forwarding maritime search and rescue data packets, the target nodes select the candidate relay nodes in turn and combined with the reliable response mechanism to forward until the maritime search and rescue data packets are successfully received by search and rescue ship.

Abstract: The present invention discloses a formation method, comprising: forming a hard mask layer and a photo-lithographic pattern of a fin structure on a the semiconductor substrate; patterning the hard mask layer and the semiconductor substrate to gain the fin structure with a profile of steep sidewalls; forming a protective layer on the sidewall surface of the fin structure; etching the semiconductor substrate located below the fin structure to form isolation structure trenches; performing a modified treatment on the exposed surfaces of the isolation structure trenches to form a modified layer with a certain thickness; removing the protective layer and the modified layer simultaneously; filling a dielectric layer in the isolation structure trenches till to cover the fin structure and then planarizing the dielectric layer; performing a trench etching to the dielectric layer and forming the fin structure and an isolation structure with sloped sidewalls.

Abstract: Continuous miniaturization of semiconductor devices is the key to boosting modern electronics development. However, such downscaling strategy has been rarely utilized in photoelectronics and photovoltaics. Here, in this work, a full-vdWs 1D p-Te/2D n-Bi2O2Se heterodiode with a rationally-designed nanoscale ultra-photosensitive channel is reported. Enabled by the dangling bond-free mixed-dimensional vdWs integration, the Te/Bi2O2Se type-II diodes show a high rectification ratio of 3.6×104. Operating with 100 mV reverse bias or in a self-power mode, the photodiodes demonstrated excellent photodetection performances, including high responsivities of 130 A W?1 (100 mV bias) and 768.8 mA W?1 (self-power mode), surpassing most of the reports of other heterostructures. More importantly, a superlinear photoelectric conversion phenomenon is uncovered in these nanoscale full-vdWs photodiodes, in which a model based on the in-gap trap-assisted recombination is proposed for this superlinearity.

Abstract: Mixed-dimensional heterostructure nano-devices with multi-functionality for use in semiconductors. Specifically, a gate-tunable and anti-ambipolar phototransistor is devised based on 1D p-type GaAsSb nanowire/2D n-type MoS2 nanoflake mixed-dimensional van der Waals (vdW) heterojunctions. Methods of making the mixed-dimensional heterostructure nano-devices with multi-functionality, gate-tunability and anti-ambipolar phototransistor.

Abstract: A wave energy absorption and conversion device and a power generation system includes a floating body, a guiding shaft, a damping plate and a counteracting mechanism placed in a movement range of the damping plate. The guiding shaft is connected to the bottom of the floating body and passes through the center of the damping plate. The damping plate may slide on the guiding shaft. A counterforce generated by the counteracting mechanism is opposite to a natural moving direction of the damping plate, so that the damping plate can be kept in a relatively static state under a synergistic effect of the counteracting mechanism, and thereby, colliding of damping plate with constraint structures above and below can be prevented when floating body is moving up and down following waves. The power generation system includes the wave energy absorption and conversion device and a power generation system.