Abstract: The photovoltaic cell includes a silicon substrate, a first passivation layer, a second passivation layer, at least one silicon oxynitride layer, and at least one silicon nitride layer. The second passivation layer includes a first silicon oxide layer and at least one aluminum oxide layer, and a thickness of the at least one aluminum oxide layer is in a range of 4 nm to 20 nm. The number of silicon atoms is greater than the number of oxygen atoms in the at least one silicon oxynitride layer and the number of oxygen atoms is greater than the number of nitride atoms in the at least one silicon oxynitride layer. The first silicon oxide layer is disposed between the substrate and the at least one aluminum oxide layer, and a thickness of the first silicon oxide layer is in a range of 0.1 nm to 5 nm.

Abstract: The invention provides a carbon dioxide-based polyurethane elastomer with damping and anti-fatigue aging properties and its preparation method. It is obtained from Component A and Component B; Component A includes: PTMG-1000 45˜60 parts, carbon dioxide-based polyol 25˜30 parts, poly-DOPO-ITA-pentanediol ester 10˜20 parts, BDO 3˜5 parts, water 0.3˜0.5 parts, N-methylimidazole 0.5˜0.8 parts, bis(2-dimethylaminoethyl) ether 0.1˜0.2 parts, needle-shaped nano-titanium dioxide 0.5 parts, hindered phenol 0.2˜0.5 parts, dibutyltin dilaurate 0.1˜0.3 parts, strontium chloride 0.005˜0.01 parts, rhodium chloride 0.02˜0.03 parts, foaming agent 0.2˜0.5 parts; Component B includes: carbon dioxide-based polyol 50˜55 parts, MDI-50 45˜50 parts, organic zinc 0.01˜0.02 parts, organic bismuth 0.01˜0.02 parts.

Abstract: Disclosed are methods for improving compound detection and characterization. Methods for characterizing a sample are disclosed. The methods can include providing a sample to a liquid chromatography system capable of sample separation to generate sample components; analyzing sample components by multiplexed targeted selected ion monitoring (SIM) to generate an inclusion list; and performing iterative mass spectral data-dependent acquisition (DDA) from the inclusion list, to identify individual sample components thereby characterizing the sample. In one example, multiplexed targeted SIMs and iterative MS2 DDA acquisition is used to increase robust compound identification for cell culture medium analysis.

Abstract: A valve actuator includes a support body, an operating member and a locking member. The support body is provided with a plurality of locking structures. The plurality of locking structures are distributed in a circumferential direction, with an axis surrounded by the circumferential direction being defined as a first axis. The operating member is rotatably connected to the support body about the first axis. The locking member is movably connected to the operating member. The operating member can rotate relative to the support body to a plurality of locked positions. Each locked position corresponds to one of the locking structures. When the operating member is in the locked position, the locking member can move relative to the operating member to engage with the corresponding locking structure to prevent the operating member from rotating relative to the support body. The valve actuator can enable locking and unlocking of the operating member.

Abstract: The present disclosure relates to compounds of formula (I) and their anti-tumor uses, and their intermediates of formula (III), and uses of the intermediates. The compound of formula (I) has a degrading effect on a specific target protein, which is mainly composed of three parts. The first part is a small molecule compound (SMBP, Small Molecules Binding Protein) that can bind to a protein, the second part LIN is a linker, and the three-part ULM is a ubiquitin ligand (ULM, Ubiquitin Ligase Binding Moiety), wherein SMBP is covalently bound to LIN, and LIN is covalently bound to ULM. A series of compounds designed and synthesized in the present disclosure have a wide range of pharmacological activities, including the functions of degrading specific proteins and/or inhibiting activities of specific proteins, and thus can be used in related tumor treatments.

Abstract: The disclosure provides methods of characterizing a sample of oligonucleotides of interest using liquid chromatography and mass spectrometry.

Abstract: The present disclosure relates to compounds of formula (I) and their anti-tumor uses, and their intermediates of formula (III), intermediates of formula (IV), and uses of the intermediates. The compound of formula (I) has a degrading effect on a specific target protein, which is mainly composed of three parts. The first part is a small molecule compound (SMBP, Small Molecules Binding Protein) that can bind to a protein, the second part LIN is a linker, and the three-part ULM is a ubiquitin ligand (ULM, Ubiquitin Ligase Binding Moiety), wherein SMBP is covalently bound to LIN, and LIN is covalently bound to ULM. A series of compounds designed and synthesized in the present disclosure have a wide range of pharmacological activities, including the functions of degrading specific proteins and/or inhibiting activities of specific proteins, and thus can be used in related tumor treatments.

Abstract: Provided herein are KRAS G12D proteolysis targeting chimeras (PROTACs), compositions comprising the KRAS G12D PROTACs, and methods of making and using the KRAS G12D PROTACs, e.g., to promote degradation of KRAS G12D and/or treat KRAS G12D-associated cancers. In an embodiment, the KRAS G12D PROTAC has the following structural formula: [KRAS G12Di]-L?-[Degron], or a pharmaceutically acceptable salt thereof, wherein values for the variables (e.g., KRAS G12Di, L?, Degron) are as described herein.

Abstract: A robotic welding device including a control box configured to pre-store various welding processes and generate a welding parameter. A wire feed mechanism configured to feed a welding wire to a welding gun and a flexible guide rail attached to a welding component. A welding robot including a robot body and a welding gun. A teaching apparatus in communication with the welding robot and the control box, controlling, a traveling path and an operation position of the welding robot, and adjusting oscillation and welding operations of the welding gun according to an instruction of the control box. A remote control terminal in communication with the control box, and in communication with a data acquisition device of the welding robot. The robotic welding device including a welding power supply.

Abstract: A self-cleaning and anti-adhesion apparatus for marine instruments includes an installation frame. A first end of the installation frame is fixed with an installation base, and a second end of the installation frame is movable with a screw rod. The upper end of the installation base is movable with a first rotation base. A wire netting ball used for holding a sensor is installed above the first rotation base. The wire netting ball is fixedly connected with the installation base. The top end of the screw rod is fixedly connected with a first end of the flexible connector, and a second end of the flexible connector is fixedly connected with a floating bladder. The screw rod is screwed with an inner wheel of an internal meshing ratchet mechanism, and an outer wheel of the internal meshing ratchet mechanism is fixed inside the mounting ring.

Abstract: A self-cleaning and anti-adhesion apparatus for marine instruments includes an installation frame. A first end of the installation frame is fixed with an installation base, and a second end of the installation frame is movable with a screw rod. The upper end of the installation base is movable with a first rotation base. A wire netting ball used for holding a sensor is installed above the first rotation base. The wire netting ball is fixedly connected with the installation base. The top end of the screw rod is fixedly connected with a first end of the flexible connector, and a second end of the flexible connector is fixedly connected with a floating bladder. The screw rod is screwed with an inner wheel of an internal meshing ratchet mechanism, and an outer wheel of the internal meshing ratchet mechanism is fixed inside the mounting ring.

Abstract: A grounding segment for a segmented grounding electric device, including a plurality of segment single bodies disposed in a matched manner, wherein a curved concave surface is formed in an outer side surface of each segment single body; a chute is formed in the curved concave surface; an interior of the chute is in sliding connection with an elastic member; two ends of the elastic member are respectively connected to sliders; the sliders are in sliding connection with the interior of the chute; each slider is movably connected to a curved fixing member matching a grounding conductor; the curved fixing member is made of a conductive material applicable to grounding conductors of different sizes; and a locking apparatus is connected between the plurality of segment single bodies. A user conveniently transports and mounts the grounding segment to reduce a land excavation area. Universality of the grounding segment is improved.

Abstract: A grounding segment for a segmented grounding electric device, including a plurality of segment single bodies disposed in a matched manner, wherein a curved concave surface is formed in an outer side surface of each segment single body; a chute is formed in the curved concave surface; an interior of the chute is in sliding connection with an elastic member; two ends of the elastic member are respectively connected to sliders; the sliders are in sliding connection with the interior of the chute; each slider is movably connected to a curved fixing member matching a grounding conductor; the curved fixing member is made of a conductive material applicable to grounding conductors of different sizes; and a locking apparatus is connected between the plurality of segment single bodies. A user conveniently transports and mounts the grounding segment to reduce a land excavation area. Universality of the grounding segment is improved.

Abstract: Disclosed are a multipath selection method and device, and a storage medium. The method includes that: a correlation sequence between a received signal and a local reference signal is acquired by means of a correlation calculation method; a power spectrum of the correlation sequence and an average noise power of the received signal are acquired; according to the average noise power of the received signal, the power spectrum of the correlation sequence is divided into at least one first multipath component area and a second multipath component area according to a pre-set dividing rule; the at least one first multipath component area is searched according to a pre-set first noise threshold, so as to acquire a valid multipath component signal in the at least one first multipath component area; and the second multipath component area is searched according to a pre-set second noise threshold, so as to acquire a valid multipath component signal in the second multipath component area.

Abstract: The present disclosure discloses a method and device for determining a position, and a computer storage medium. The method includes that a first power value for a SYNC-NL segment within a DwPTS, a second power value for a first GP segment which precedes the SYNC-NL segment, a third power value for a second GP segment which follows the SYNC-NL segment, and a fourth power value for a time slot 0 are acquired; an eigenvalue of the DwPTS is calculated according to the first power value, the second power value, the third power value and the fourth power value; and the position of the DwPTS is determined according to the eigenvalue.

Abstract: An MAP algorithm-based Turbo decoding method and apparatus. The method includes: iteratively estimating an information symbol by using an MAP algorithm, acquiring an ? and ? window boundary values of each sliding window by means of window boundary value inheritance, acquiring an ? block boundary value and ? block boundary value of each sub-block by means of block boundary value inheritance, and recursively calculating posterior probability Log Likelihood Ratio (LLR) values of a whole window and a whole block according to the ? boundary values and the ? boundary values (101); and performing decoding decision according to the LLR values (102).