Abstract: An integrator and an analog-to-digital converter are provided. The analog-to-digital converter includes the integrator, a comparison circuit and a control logic circuit. The integrator includes an operational amplifier, offset capacitors, input capacitors, integral capacitors and controllable switches. The input capacitors and the integral capacitors are connected to the operational amplifier via controllable switches, so that the integrator operates in various operation modes. Operation states of the offset capacitors in a first phase and a second phase of an operation cycle are controlled by switching on or off the controllable switches. Therefore, an offset voltage of the integrator is eliminated, and conversion efficiency and conversion accuracy of the analog-to-digital converter is improved.

Abstract: The present disclosure provides an aromatization catalyst, a preparation method, a regeneration method and an aromatization method thereof. The preparation method comprises steps of: mixing a zeolite molecular sieve with a binder to obtain a catalyst precursor; the catalyst precursor is successively subjected to an ion exchange modification and a first modification treatment, and then subjected to a hydrothermal treatment, and further subjected to active metal loading and a second modification treatment, to obtain the aromatization catalyst. The aromatization catalyst has good carbon deposition resistance and high aromatization activity, and enables an aromatization reaction to be completed under mild conditions, and has high aromatic selectivity, and the liquid yield is above 98.5%.

Abstract: Embodiments of the present disclosure provide a method for determining height. The method includes obtaining a plurality of reflection points within a predetermined angle range below an object to be detected; coordinating the plurality of reflection points; performing function fitting on the plurality of coordinated reflection points; determining a measured height of the object to be detected at a current time based on a function obtained by fitting; and weighting the measured height of the object to be detected at the current time and a predicted height of the object to be detected at the current time to determine an optimal estimated height of the object to be detected at the current time.

Abstract: A terrain prediction method includes obtaining N pieces of ranging data obtained by a continuous wave radar performing ranging on ground during rotation and when a rotation angle of the continuous wave radar is in a predetermined angle range, excluding outliers from the N pieces of ranging data to obtain M pieces of ranging data, and determining a terrain parameter of the ground according to the M pieces of ranging data. N is an integer greater than 1. M is a positive integer smaller than N. The terrain parameter includes at least one of a slope, a flatness, or a height value of the continuous wave radar to the ground directly below.

Abstract: A package structure comprises a metal plate (20) where a slot is formed, a ceramic piece (60), and a metal heat sink (70) welded onto the back surface of the ceramic piece (60). The ceramic piece (60) and the metal heat sink (70) are vertically inserted into the slot and welded to the metal plate (20). A semiconductor and a matching circuit may be disposed on the metal heat sink (70). The ceramic piece (60) replaces a glass seal; metalized interconnection is provided inside the ceramic piece (60) for fabricating a metalized pattern having complex connection relations, and the electrical interconnection is more flexible. In the package structure, metalized wiring is carried out by using the ceramic piece. Compared with round lead machining, higher precision is achieved.

Abstract: The present disclosure provides an aromatization catalyst, a preparation method, a regeneration method and an aromatization method thereof. The preparation method comprises steps of: mixing a zeolite molecular sieve with a binder to obtain a catalyst precursor; the catalyst precursor is successively subjected to an ion exchange modification and a first modification treatment, and then subjected to a hydrothermal treatment, and further subjected to active metal loading and a second modification treatment, to obtain the aromatization catalyst. The aromatization catalyst has good carbon deposition resistance and high aromatization activity, and enables an aromatization reaction to be completed under mild conditions, and has high aromatic selectivity, and the liquid yield is above 98.5%.

Abstract: A flip-chip light emitting device includes a transparent substrate, an epitaxial light-emitting structure, a transparent bonding layer interposed between the transparent substrate and the light-emitting structure, and a protective insulating layer disposed over the light-emitting structure and the bonding layer. The transparent bonding layer has a smaller-thickness section that has a first contact surface for the protective insulating layer to be disposed thereover, and a larger-thickness section that has a second contact surface meshing with and bonded to a roughened bottom surface of the light-emitting structure. The first contact surface is smaller in roughness than the second contact surface. A method for producing the device is also disclosed.

Abstract: Embodiments of the present application are to provide a method for detecting wireless network security. The method comprises: establishing a wireless connection between a user equipment and a target wireless access point; obtaining security detection information on a wireless local area network where the user equipment is located; and classifying the security detection information and determining security status information corresponding to the wireless local area network based on the security detection information. The present application detects the connected wireless network, obtains corresponding security detection information based on security detection items, and classifies the security detection information and determines security status information corresponding to the wireless local area network according to the security detection information.

Abstract: The present disclosure describes a laser light source. The laser light source includes first laser emitting first laser light; and a phosphor wheel comprising a plurality of regions arranged along a first circumferential direction. When the first laser light is transmitted onto the plurality of regions of the phosphor wheel, the plurality of regions of the phosphor wheel are configured to emit light comprising at least one of three colors. The plurality of regions of the phosphor wheel comprise at least one pair of first regions configured to emit light of a same color. The plurality of regions of the phosphor wheel comprise one second region spaced between each pair of the at least one pair of first regions. The light emitted from the first region and the light emitted from the second region comprise different colors.

Abstract: Single-unit EEG sensors contain multiple closely spaced dry electrodes that can hook onto skin and associated electronic circuitry such as amplifiers, A/D convertors, wireless transmitters, and a power source such as a battery. The electrodes can be separated by about 20 mm or less, and the associated circuitry can be situated within a volume defined by the multiple electrodes. The single-unit sensors hook onto the skin using a tooth surface so that a rotation of the sensor secures and electrically connects the sensor to the skin.

Abstract: Bioconjugates and methods of making bioconjugates are provided, wherein the bioconjugates comprise glucose oxidase and nanoparticles that can kill tumor cells. For example, glucose oxidase-iron oxide bioconjugates can produce reactive oxygen species from blood glucose, causing cell death. The use of superparamagnetic iron oxide nanoparticles can provide magnetic resonance imaging guidance to facilitate imaging-guided drug delivery and combine diagnostics with therapy.

Abstract: The description relates to a method and kits for determining the total carbonylation level on a polypeptide.

Abstract: A ripple pre-amplification based fully integrated LDO pertains to the technical field of power management. The positive input terminal of a transconductance amplifier is connected to a reference voltage Vref, and the negative input terminal of the transconductance amplifier is connected to the feedback voltage Vfb. The output terminal of the transconductance amplifier is connected to the negative input terminal of a transimpedance amplifier and the negative input terminal of an error amplifier. The positive input terminal of the transimpedance amplifier is connected to the ground GND, and the output terminal of the transimpedance amplifier is connected to the positive input terminal of the error amplifier. The gate terminal of the power transistor MP is connected to the output terminal of the error amplifier, the source terminal of the power transistor MP is connected to an input voltage VIN, and the drain terminal of the power transistor MP is grounded.

Abstract: A ripple pre-amplification based fully integrated LDO pertains to the technical field of power management. The positive input terminal of a transconductance amplifier is connected to a reference voltage Vref, and the negative input terminal of the transconductance amplifier is connected to the feedback voltage Vfb. The output terminal of the transconductance amplifier is connected to the negative input terminal of a transimpedance amplifier and the negative input terminal of an error amplifier. The positive input terminal of the transimpedance amplifier is connected to the ground GND, and the output terminal of the transimpedance amplifier is connected to the positive input terminal of the error amplifier. The gate terminal of the power transistor MP is connected to the output terminal of the error amplifier, the source terminal of the power transistor MP is connected to an input voltage VIN, and the drain terminal of the power transistor MP is grounded.

Abstract: A low-dropout regulator with super transconductance structure relates to the field of power management technology. The super-transconductance structure refers to the circuit structure in which the voltage signal is converted into a current signal and amplified with a high magnification. The error amplifier EA in the present invention uses the super transconductance structure. The differential input pair of the error amplifier EA samples the difference between the feedback voltage VFB and the dynamic reference voltage VREF1. The difference is converted into a small signal current, which goes through a first-stage of current mirror to be amplified by K1, and through a second-stage of current mirror to be amplified by K2. The amplified signal is used to regulate the gate of the adjustment transistor MP. The error amplifier EA with the super transconductance structure is used to expand the bandwidth of the error amplifier EA.

Abstract: A low-dropout regulator with super transconductance structure relates to the field of power management technology. The super-transconductance structure refers to the circuit structure in which the voltage signal is converted into a current signal and amplified with a high magnification. The error amplifier EA in the present invention uses the super transconductance structure. The differential input pair of the error amplifier EA samples the difference between the feedback voltage VFB and the dynamic reference voltage VREF1. The difference is converted into a small signal current, which goes through a first-stage of current mirror to be amplified by K1, and through a second-stage of current mirror to be amplified by K2. The amplified signal is used to regulate the gate of the adjustment transistor MP. The error amplifier EA with the super transconductance structure is used to expand the bandwidth of the error amplifier EA.

Abstract: A composition comprising a silicone oil or fluorosilicone fluid infused in a cross-linked silicone resin matrix. The silicone oil or fluorosilicone fluid may comprise a linear or branched polymeric siloxane that may be functionalized with one or more of: alkyl, fluoroalkyl, aryl, benzyl, halo, hydride, hydroxyl, -alkyl-OH, -alkyl-SH, halo, -aryl-halogen, -alkyl-COOH, -alkyl(COOH)-alkyl-COO-alkyl, alkenyl, vinyl, -alkyl-acryloyl, -alkylamino, -alkyl-NH-alkyl-NH2, -alkyl-OOC-NH-alkyl-NCO, -alkyl-O-oxiranyl, monofluoromethyl, difluoromethyl, trifluoromethyl, or alkeneoxide co-polymer.

Abstract: Single-unit EEG sensors contain multiple closely spaced dry electrodes that can hook onto skin and associated electronic circuitry such as amplifiers, A/D convertors, wireless transmitters, and a power source such as a battery. The electrodes can be separated by about 20 mm or less, and the associated circuitry can be situated within a volume defined by the multiple electrodes. The single-unit sensors hook onto the skin using a tooth surface so that a rotation of the sensor secures and electrically connects the sensor to the skin.

Abstract: A system for treating waste water includes a waste water inlet, a pretreatment system in fluid communication with the waste water inlet, which is adapted to reduce the concentration of at least one of suspended solids, oil and grease, and a crystallization system downstream of the pretreatment system. A method for treating waste water include introducing the waste water into a pretreatment system being adapted to reduce the concentration of at least one of suspended solids, oil and grease, and introducing liquid effluent from the pretreatment system to a crystallization system.

Abstract: A composition comprising a silicone oil or fluorosilicone fluid infused in a cross-linked silicone resin matrix. The silicone oil or fluorosilicone fluid may comprise a linear or branched polymeric siloxane that may be functionalized with one or more of: alkyl, fluoroalkyl, aryl, benzyl, halo, hydride, hydroxyl, -alkyl-OH, -alkyl-SH, halo, -aryl-halogen, -alkyl-COOH, -alkyl(COOH)-alkyl-COO-alkyl, alkenyl, vinyl, -alkyl-acryloyl, -alkylamino, -alkyl-NH-alkyl-NH2, -alkyl-OOC—NH-alkyl-NCO, -alkyl-O-oxiranyl, monofluoromethyl, difluoromethyl, trifluoromethyl, or alkeneoxide co-polymer.