Abstract: An electromagnetic (EM) inspection tool for inspecting a pipe that includes a longitudinally extending body having a first end, a second end, and a central longitudinal axis. The EM inspection tool further includes a transmitter disposed proximate the first end and configured to generate an alternating EM field at a first frequency. The EM inspection tool further includes a first far-field receiver plate disposed proximate the second end, wherein the first far-field receiver plate includes a first far-field receiver disposed at a first radial location and a second far-field receiver disposed at a second radial location. The EM inspection tool further includes a first near-field receiver plate disposed circumferentially around the transmitter, wherein the first near-field receiver plate includes a first near-field receiver disposed at the first radial location and a second near-field receiver disposed at the second radial location.

Abstract: Lost circulation materials may include a plurality of self-aggregating particles having a degradable coating, wherein the self-aggregating particles are capable of bonding via mechanical interactions, electrical interactions, magnetic interactions, chemical interactions, or any combination thereof into a plurality of aggregated particles. The aggregated particles have a larger effective size and can seal large openings/apertures in the subsurface that cause lost circulation during a wellbore drilling operation.

Abstract: Disclosed herein are amine functionalized zeolites and methods for making amine functionalized zeolites. In one or more embodiments disclosed herein, an amine functionalized zeolite may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The amine functionalized zeolite may further include a plurality of mesopores having diameters of greater than 2 nm and less than or equal to 50 nm and one or more of isolated terminal primary amine functionalities bonded to silicon atoms of the microporous framework or silazane functionalities, where the nitrogen atom of the silazane bridges two silicon atoms of the microporous framework.

Abstract: N-type polymer based electrochemical devices include one or more source electrodes, one or more drain electrodes, one or more channels, a gate electrode, and an electrolyte solution are disclosed. The channels include one or more n-type polymers and one or more enzymes. The gate electrode includes one or more n-type polymers and one or more enzymes. The source and the drain electrodes are electrically connected by the corresponding channel. The electrolyte solution contains one or more metabolites capable of reacting with the one or more enzymes in the channel and the gate electrode and is in electrical contact with the channel and the gate electrode. Saturation current that flows through the channel increases when the metabolites react with the enzymes to produce electrons, which are directly transferred to the n-type polymers at the gate electrode and the channel. Methods of making and using the n-type electrochemical device are also disclosed.

Abstract: A physiological data acquisition system includes an array electrode sensor (220) having plural electrodes and configured to acquire physiological data; a single electrode sensor having a single electrode and configured to acquire additional physiological data; and a hub that is configured to receive the physiological data from the array electrode sensor and the additional physiological data from the single electrode sensor only along body communication channels. At least one of the array electrode sensor and the single electrode sensor is configured to send an energy request signal to the hub, along the body communication channels. The hub, in response to the received energy request signal, emits radio frequency signals, which are used by the at least one of the array electrode sensor and the single electrode sensor to harvest energy.

Abstract: Techniques for determining reservoir formation properties include generating digital models of core samples taken from one or more reservoir formations based on corresponding images of the core samples; determining a pore throat size distribution of the core samples based on the generated digital models; determining corresponding capillary pressure curves and corresponding NMR value distributions of the core samples with one or more numerical simulations; generating one or more machine-learning (ML) models based on the pore throat size distribution, corresponding capillary pressure curves, and corresponding NMR value distributions of the core samples; adjusting the one or more ML models with one or more reservoir data of the one or more reservoir formations; generating adjusted capillary pressure curves and NMR value distributions from the one or more adjusted ML models; and determining a reservoir formation specific pore throat size distribution from at least one of the adjusted capillary pressure curves or

Abstract: An antenna-on-chip, AoC, system includes a substrate base, an artificial magnetic conductor, AMC, system with embedded guiding structures, EGS, the AMC system being located on the substrate base, and an antenna located onto the AMC system, where the EGS are electrically floating within the AMC system.

Abstract: An optoelectronic device includes a flexible substrate, a cerium oxide (CeO2) layer arranged on the flexible substrate, a single crystal ?-III-oxide layer arranged on the CeO2 layer, and a metallic contact layer arranged on the single crystal ?-III-oxide layer.

Abstract: The present disclosure relates to Dopa containing ultrashort peptides capable of forming a gel, to a gel comprising a peptide in accordance with the present disclosure, and to a glue comprising a peptide in accordance with the present disclosure. Such gel is adhesive and is biocompatible. The peptides are suitable for building 3D structures, 3D printing, gluing as well as other applications.

Abstract: The present disclosure relates generally to an osteo-tissue graft capable of promoting bone tissue growth and regeneration, comprising at least one self-assemble peptide and mesenchymal stem cells (MSCs) in accordance with the present invention and a method of preparing such an osteo-tissue graft. The grafts are suitable for treatment of bone disorder or damages through tissue engineering, cellular replacement therapies as well as other applications.

Abstract: A method for estimating a range of a moving target, the method including emitting, from a target, a first ultrasound signal T, wherein the first ultrasound signal T is generated based on a first differential Zadoff-Chu sequence x; receiving, at a receiver, a second ultrasound signal R, which corresponds to the first ultrasound signal T, wherein the second ultrasound signal R includes a second differential Zadoff-Chu sequence y; correlating the first ultrasound signal T with the second ultrasound signal R to calculate an initial time of flight estimate taucorr; and calculating an initial range estimate dcorr by multiplying the initial time of flight estimate taucorr with a speed of sound c. A differential Zadoff-Chu sequence is different from a Zadoff-Chu sequence.

Abstract: An unmanned aerial vehicle (UAV) includes a flexible holder retaining a plurality of probes. The flexible holder is deformable to arrange the probes around a portion of a structure, allowing the probes to scan the portion of the structure. At least one of the plurality of probes is an ultrasonic test (UT) probe to scan the portion of the structure with ultrasonic waves.

Abstract: An optical wireless communication receiver includes one or more harvesting solar cells configured to transform light into electrical power; one or more communication solar cells configured to transform light into an electrical signal embedding information; a rechargeable battery configured to store the electrical power generated by the one or more harvesting solar cells; a communication module configured to decode the electrical signal generated by the one or more communication solar cells and extract the information; a first switch configured to connect the one or more harvesting solar cells to the rechargeable battery for a harvesting-first state, and to the communication module for a communication-second state; a second switch configured to connect the one or more communication solar cells to the communication module for a communication-first state, and to the rechargeable battery for a harvesting-second state; and a microprocessor configured to control the first and second switches.

Abstract: A logic system includes a microelectromechanical system, MEMS, resonator having an arch beam and first and second side beams, wherein the first side beam is attached with a first end to a first end of the arch beam and the second side beam is attached with a first end to a second end of the arch beam to form a U-shape; an input electrode facing the second side beam; a selector electrode facing the second side beam; a first output electrode facing the first side beam; and a second output electrode facing the arch beam.

Abstract: The subject matter of this specification can be embodied in, among other things, a method for removing intermodal distortion that includes receiving a collection of distorted backscattered Rayleigh signals from a collection of modes of an optical fiber, where the collection of distorted backscattered Rayleigh signals are distorted by an intermodal coupling among the collection of modes, receiving a collection of distortion parameters that are descriptive of distortion effects of the intermodal coupling, and determining an undistorted backscattered Rayleigh signal based on the collection of distorted backscattered Rayleigh signals and the collection of distortion parameters.

Abstract: Disclosed herein are modified zeolites and methods for making modified zeolites. In one or more embodiments disclosed herein, a zeolite may include a microporous framework comprising a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may further include organometallic moieties each bonded to bridging oxygen atoms. The organometallic moieties may include a zirconium atom. The zirconium atom may be bonded to a bridging oxygen atom, and the bridging oxygen atom may bridge the zirconium atom of the organometallic moiety and a silicon atom of the microporous framework.

Abstract: A concentrating solar power plant includes a solar light capturing part configured to capture solar light; and a heat exchange part configured to transform solar energy, from the captured solar light, into heat, which is stored in a solid medium, wherein the solid medium is stored underground. The solar light capturing part has a heliostat farm, a beam down solar concentrator, and a compound concentrator, each configured to reflect the solar light.

Abstract: Lost circulation materials may include a plurality of self-aggregating particles having a degradable coating, wherein the self-aggregating particles are capable of bonding via mechanical interactions, electrical interactions, magnetic interactions, chemical interactions, or any combination thereof into a plurality of aggregated particles. The aggregated particles have a larger effective size and can seal large openings/apertures in the subsurface that cause lost circulation during a wellbore drilling operation.

Abstract: A liquid desiccant system for controlling a temperature inside an enclosure includes a liquid desiccant evaporative cooler (LDEC) system configured to cool down an incoming air stream (AA) entering the enclosure by using a first liquid desiccant; a liquid desiccant humidity pump (LDHR) system configured to remove humidity from a humid air stream (AD) that exists the enclosure by using a second liquid desiccant; and a storage system fluidly connected to the LDEC system and to the LDHR system and configured to separately store the first liquid desiccant and the second liquid desiccant. The humid air stream (AD) includes water vapors from the first liquid desiccant and from inside the enclosure.

Abstract: Lost circulation materials may be particles having a core-shell structure. Said particles may include: a core comprising an expandable material; and a shell around the core, the shell comprising an outer permeable membrane, an inner permeable membrane, and a hardenable material between the outer and inner permeable membranes; and wherein the core-shell structure is folded. The particles may be initially folded where, upon exposure to a stimulus, the core expands in volume (which unfolds the particles) and the shell increases in strength. The expanded particles can then clog large openings/apertures in the formation.