Abstract: Methods, systems, and computer-readable storage media for receiving a query plan and a set of query parameters of the query plan, the query plan corresponding to a query submitted to a database system, and determining that the set of query parameters matches a filter in a set of filters, each parameter in a set of parameters of the filter matching a query parameter in the set of query parameters, and in response: providing the query plan to an abstract query plan generator that generates an abstract query plan based on the query plan, and storing the abstract query plan in an abstract query plan store.

Abstract: The present disclosure relates to a composite membrane in which a rubbery polymer is introduced into a gutter layer to suppress the physical aging of the highly permeable composite membrane, and more particularly, to a composite membrane comprising a porous support layer; a gutter layer on the porous support layer; and an active layer on the gutter layer, wherein the gutter layer comprises a blend of poly(l-trimethlsilyl-l-propyne) (PTMSP) and a rubbery polymer and a method for preparing the same. The composite membrane according to the present disclosure has high permeation performance and a remarkable decline in physical aging leading to a decrease in permeability over time and thus has very high industrial applicability.

Abstract: The present invention discloses a variable gain amplifier circuit having linearity compensation mechanism is provided. A lower amplification transistor of a lower branch of an amplification circuit is controlled by an AC input signal. Upper amplification transistors of an upper branch generate an AC output signal at an amplification output terminal. An amplification control circuit controls the turn-on and turn-off of the upper amplification transistor according to an amplification control voltage. An inductor is electrically coupled between a power supply terminal and the amplification output terminal. In a gain adjustment circuit, each of adjustment control circuits controls the turn-on and turn-off of each of adjustment transistors according to a adjustment control voltage. A first voltage adjustment circuit adjusts an impedance of each of the adjustment transistors to further adjust an AC cross voltage relation between the lower amplification transistor and the upper amplification transistors.

Abstract: An apparatus for estimating a target component may include: a spectrometer configured to acquire training spectra; and a processor configured to extract a set number of principal components from the training spectra, determine whether the set number of principal components is appropriate based on randomness of residual in the set number of principal components, and based on the set number of principal components being determined to be appropriate, generate a target component estimation model based on the set number of principal components.

Abstract: The present invention relates to an electrode structure for a secondary battery comprising a potential sheath capable of suppressing a side reaction between an electrode and an electrolyte through electric potential control, and a method for manufacturing the same. The electrode structure for the secondary battery according to the present invention uses the electric potential control so that an unstable SEI layer, which causes decrease in cycle characteristic and capacity of an anode material, occurs only on the surface of a potential sheath without occurring on the surface of the anode active material, thereby being capable of completely solving the problems of the existing nanostructured electrode.

Abstract: Provided are a methane-selective composite membrane comprising: a UiO-66 type organic-inorganic composite nanoporous material, a MIL-100 type organic-inorganic composite nanoporous material, or a ZIF-8 type organic-inorganic composite nanoporous material to which a methane-selective functional group is introduced for selectively separating methane from a gas mixture containing methane/nitrogen, a use thereof, and a method of preparing the same.

Abstract: A radio frequency transceiver device includes an antenna unit, a first matching circuit, a receiver circuit, a second matching circuit, a transmitter circuit, and an auxiliary circuit. The receiver circuit includes a mixer unit. The auxiliary circuit includes a first transformer coil and a second transformer coil. The first matching circuit and the receiver circuit are configured to form a first signal reception channel to receive, process, and transmit the first radio frequency signal to the mixer unit when the first radio frequency signal is a high gain radio frequency signal. The second matching circuit and the auxiliary circuit are configured to form a second signal reception channel to receive, process, and transmit the first radio frequency signal to the mixer unit when the first radio frequency signal is a middle-low gain radio frequency signal. Another radio frequency signal transceiver device further includes a third matching circuit.

Abstract: Disclosed are a furaneone glycoside compound, a pharmaceutical composition thereof, a preparation method therefor, and an application thereof. Specifically disclosed are a compound as represented by formula A-1, a pharmaceutically acceptable salt thereof or a crystal form thereof. Also disclosed is a pharmaceutical composition, which comprises the compound as represented by formula A-1, the pharmaceutically acceptable salt thereof, and a pharmaceutical adjuvant. Also disclosed is an application of the compound as represented by formula A-1, the pharmaceutically acceptable salt thereof, the crystal form thereof, or the pharmaceutical composition in the preparation of drugs. The drugs are drugs for treating inflammatory bowel diseases. The furaneone glycoside compound has a good effect of treating inflammatory bowel diseases, particularly ulcerative colitis.

Abstract: An apparatus and method for estimating bio-information are provided. The apparatus for estimating bio-information includes: a spectrometer configured to measure a spectrum from an object according to measurement conditions; and a processor configured to obtain signal-to-noise ratio (SNR) values for each wavelength of the spectrum measured by the spectrometer, generate a plurality of simulated absorbance spectra based on the SNR values for each wavelength of the spectrum, and determine an optimal wavelength combination for use in measuring the bio-information based on the plurality of simulated absorbance spectra.

Abstract: An amplifying circuit comprises: a plurality of first transistors; a second transistor coupled in series with the first transistor; and a compensation capacitor group comprising a plurality of compensation capacitors and a plurality of switches. When the amplifying circuit operates in a first gain mode, a first number of first transistors are turned on and a second number of compensation capacitors are coupled between the first terminal and the second terminal of the first transistor. When the amplifying circuit operates in a second gain mode, a third number of first transistors are turned on and a fourth number of compensation capacitors are coupled between the first terminal and the second terminal of the first transistor. The first number is larger than the third number, and the second number is larger than the fourth number.

Abstract: An apparatus for estimating bio-information, may include: a sensor part having a photoplethysmography (PPG) sensor configured to measure a PPG signal from an object of a user, and a force sensor configured to measure a contact force between the object and the PPG sensor; an output interface, which before the PPG signal is measured, is configured to output first guide information indicating a predetermined number of times the user is required to touch the sensor part, and second guide information indicating a number of times that the sensor part has been touched since the first guide information is output; and a processor configured to estimate bio-information of the user by using the PPG signal based on the number of times that the sensor has been touched since the first guide information is output, corresponding to the predetermined number of times the user is required to touch.

Abstract: A apparatus for estimating concentration may include: a spectrum obtainer configured to obtain Raman spectra of an object; and a processor configured to extract, from the Raman spectra, at least one analyte spectrum related to an analyte and at least one non-analyte spectrum related to a biological component other than the analyte, and estimate concentration of the analyte based on a first area under a curve of the at least one analyte spectrum and a second area under a curve of the at least one non-analyte spectrum.

Abstract: The present disclosure provides a transparent and highly sensitive pressure sensor with improved linearity and pressure sensitivity including: a first substrate on which a micropattern having pyramidal structures is formed; a first electrode layer coated on the micropattern of the first substrate; a second substrate stacked on the first electrode layer; and a second electrode layer stacked on the second substrate, wherein the first substrate and the second substrate show a difference in light refractive index of 10% or less in the visible light region.

Abstract: Disclosed are a furaneol glycoside compound, a pharmaceutical composition thereof, a preparation method therefor, and an application thereof. Specifically disclosed are a compound as represented by formula A-1, a pharmaceutically acceptable salt thereof or a crystal form thereof. Also disclosed is a pharmaceutical composition, which comprises the compound as represented by formula A-1, the pharmaceutically acceptable salt thereof, and a pharmaceutical adjuvant. Also disclosed is an application of the compound as represented by formula A-1, the pharmaceutically acceptable salt thereof, the crystal form thereof, or the pharmaceutical composition in the preparation of drugs. The drugs are drugs for treating inflammatory bowel diseases. The furaneol glycoside compound has a good effect of treating inflammatory bowel diseases, particularly ulcerative colitis.

Abstract: Methods and apparatus are disclosed for staged query compilation. One or more intermediate plans between a query and its execution plan are stored according to a common specification for plan data structures. Data sources, a plan flow, and annotations can be stored in respective fields of the plan data structure, which can be extended with a field for a serialized execution plan. Plan data structures provide a stable interface for integration of local and external software modules, and decouple plan representation from plan optimization. Use cases are disclosed for integrating offline optimization with inline software modules, for integrating local query handling with external services, for caching intermediate plans, and for archiving plans across version changes of optimizers. A hub architecture flexibly supports numerous compilation workflows. Disclosed technologies are suitable for cloud deployments and for migration of databases into the cloud.

Abstract: An electronic package, a packaging substrate, and methods for fabricating the same are disposed. The electronic package includes a circuit structure having a first side and a second side opposing the first side, an electronic component disposed on the first side of the circuit structure, an encapsulation layer formed on the first side of the circuit structure and encapsulating the electronic component, a metal structure disposed on the second side of the circuit structure, and a plurality of conductive elements disposed on the metal structure. The plurality of conductive elements are disposed on the metal structure, rather than disposed on the circuit structure directly. Therefore, the bonding between the conductive elements and the circuit structure is improved, to avoid the plurality of conductive elements from being peeled.

Abstract: A Raman sensor includes a light source assembly having a plurality of light sources configured to emit light to a plurality of skin points of skin, each of the plurality of skin points having a predetermined separation distance from a light collection region of the skin from which Raman scattered light is collected; a light collector configured to collect the Raman scattered light from the light collection region of the skin; and a detector configured to detect the collected Raman scattered light.

Abstract: A communication chip includes an input port, a gain circuit, a correction circuit having a phase-locked loop (PLL) circuit and a return terminal, a post-processing circuit, and a switching circuit. The gain circuit includes an input terminal and a quadrature modulation circuit that operates according to a reference clock. The gain circuit gains a signal from the input terminal according to a bias voltage and outputs a gained signal. The PLL circuit generates a correction signal through synchronization according to the reference clock. The post-processing circuit obtains an input signal strength according to a correction table and a signal from a receiving terminal of the post-processing circuit. The switching circuit couples the correction signal to the input terminal and the gained signal to the return terminal in test mode and couples the input port to the input terminal and the gained signal to the receiving terminal in an operating mode.

Abstract: An inductor device includes a first inductor, a second inductor, and at least one switch circuit. The second inductor is arranged to enclose the first inductor, and use a topmost layer metal to resist external interference for the first inductor. The at least one switch circuit is coupled to the second inductor, and is arranged to receive at least one control voltage, wherein the at least one control voltage is arranged to adjust conduction degree of the at least one switch circuit.

Abstract: Provided is an electrical stimulation therapy apparatus for dysphagia including an input unit configured to receive user information including a food type divided into a low-viscosity liquid and a high-viscosity liquid, a stimulation unit including a plurality of channels and configured to stimulate swallowing muscles of a user, and a processor configured to generate a control command for driving the stimulation unit, wherein the processor sequentially stimulates the swallowing muscles including a bilateral suprahyoid muscle (SH), a thyrohyoid muscle (TH), and a sternothyroid muscle (StH) of the user according to a preset muscle activation sequence based on the user information.