Abstract: Provided are a method for tracking carbon flow of a power system, a device and a medium. The method includes: acquiring related data of carbon flow tracking, where the related data include an injected active power sum column matrix of generator sets of all substations to be tracked, an injected carbon flow rate sum column matrix of generator sets of all substations to be tracked, an output power distribution matrix of a branch formed between substations to be tracked, and a power flow proportion distribution matrix of the branch formed between substations to be tracked; acquiring a carbon potential matrix EN of each substation to be tracked; and acquiring a carbon flow rate of each substation to be tracked, a carbon flow rate of the branch, and a carbon flow rate of an output load on the basis of the carbon potential matrix of each substation to be tracked.

Abstract: A method and system for monitoring operation of a hydraulic turbine under an extremely low water head, belonging to the technical field of hydraulic turbines.

Abstract: A selenium-chelating pea oligopeptide, a preparation method thereof and use thereof. After the selenium-chelating pea oligopeptide is subjected to digestion treatment in at least one of following three ways, a change rate of selenium content not more than 3% with respect to the selenium content before the digestion treatment: hydrolyzing for 4 hours by a pepsin at a pH value of 2 and a temperature of 37° C.; hydrolyzing for 6 hours by a trypsin at a pH value of 7.5 and a temperature of 37° C.; maintaining the temperature constant at 37° C., firstly hydrolyzing for 4 hours by the pepsin at a pH value of 2, and then continuing to hydrolyze for 6 hours by a trypsin at a pH value of 6.8. The preparation method thereof includes mixing and reacting an aqueous solution of pea oligopeptide and sodium selenite, and then being subjected to alcohol precipitation and drying.

Abstract: A semiconductor device comprises a semiconductor substrate, a plurality of metal layers, an adhesive layer, a compound layer, and a plurality of contact pads. A thickness of the semiconductor substrate is in a range from 15 ?m to 35 ?m. A thickness of the compound layer is larger than the thickness of the semiconductor substrate. A coefficient of thermal expansion of the compound layer is less than or equal to 9 ppm/° C. A glass transition temperature of the compound layer is larger than 150° C. The plurality of metal layers comprises a first titanium layer, a first nickel layer, a silver layer, a second nickel layer, and a metallic layer. In a first example, the metallic layer is a second titanium layer. In a second example, the metallic layer is a Titanium Nitride (TiN) layer.

Abstract: This application provides a method and an apparatus for determining signal quality information of a frequency. On example method includes obtaining, by a network device, signal quality information, of a first frequency, from a plurality of terminal devices, wherein the first frequency is a frequency used by a serving cell accessed by the plurality of terminal devices; and determining, by the network device, signal quality information of a second frequency based on the signal quality information of the first frequency and a stored first mapping relationship, wherein the second frequency is different from the first frequency, and the first mapping relationship is a mapping relationship between the signal quality information of the first frequency and the signal quality information of the second frequency.

Abstract: Provided herein are novel compounds (e.g., Formula X or Y), pharmaceutical compositions, and methods of using the same. The compounds herein can typically inhibit PLpro activities. The compounds herein can also be used for treating a variety of diseases or disorders, such as viral infection caused by a coronavirus such as SARS-CoV-2.

Abstract: The foldable bracket includes a leg bracket assembly, a pulling-rod assembly, and a supporting assembly. The pulling-rod assembly has a pulling-rod assembly first end and a pulling-rod assembly second end that are opposite to each other. The leg bracket assembly is coupled to the pulling-rod assembly first end. The supporting assembly is foldably coupled to the pulling-rod assembly second end. The supporting assembly has an unfolded state and a retracted state. The supporting assembly includes at least a main bracket, a first connecting rod assembly, and a second connecting rod assembly. In the unfolded state, the first connecting rod assembly and the second connecting rod assembly are unfolded and form a supporting surface. In the retracted state, the first connecting rod assembly and the second connecting rod assembly are affixed with the main bracket, respectively, and form a rod-shaped structure.

Abstract: The present invention relates to a rock physico-mechanical testing chamber and a three-dimensional multi-field information perception cabin in simulated environments of deep earth, deep space, and deep sea. The testing chamber comprises a cabin body and 6 butting indenters; the 6 butting indenters are pairwise located in an X-axis direction, a Y-axis direction and a Z-axis direction; the 6 butting indenters are respectively mounted in through holes on six faces of the cabin body, inner ends of the butting indenters extend into the cabin body, outer ends of the butting indenters are exposed out of the cabin body, and the butting indenters can axially move relative to the cabin body. The present application can be used to achieve the reservoir rock mechanical behavior testing in real time under high and low environments.

Abstract: A semiconductor chip package is described. The semiconductor chip package has a substrate. The substrate has side I/Os on the additional surface area of the substrate. The side I/Os are coupled to I/Os of a semiconductor chip within the semiconductor chip package. A cooling assembly has also been described. The cooling assembly has a passageway to guide a cable to connect to a semiconductor chip's side I/Os that are located between a base of a cooling mass and an electronic circuit board that is between a bolster plate and a back plate and that is coupled to second I/Os of the semiconductor chip through a socket that the semiconductor chip's package is plugged into.

Abstract: Embodiments of the present disclosure relate to an optical line terminal (OLT), an optical network unit (ONU), communication methods, communication apparatuses, and computer-readable media. In an exemplary method, the OLT determines an optical communication capability of the OLT which includes at least one of the following: at least two upstream wavelength options supported by the OLT, a passive optical network (PON) mode associated with the OLT, and an upstream modulation format used by the OLT. In the method, the OLT further transmits, to the ONU, at least one indicator indicating the optical communication capability. In this way, the OLT can negotiate the optical communication capability with the ONU, thus avoiding data transmission failures or performance degradation caused by device incompatibility.

Abstract: A lighting device comprises multiple modules each having an array of LED chip connection pads. Interconnections between the pads provide groups of connection pads, each group comprising a parallel set of connection pads, and the groups being in series with each other. An optical unit is provided for shaping the light output from LED chips mounted on the pads. The groups are defined to minimize an overall spacing of the pads within the groups (in combination) to provide a best possible color mixing for the LEDs mounted on the connection pads.

Abstract: An array of lenslets include a first surface with a plurality of individual cells defining one side of a respect lenslet, a second opposite surface with a set of grooves defining a second side of the array of lenslets. The array of lenslets is a circular arry having a plurality of concentric rings. Each ring includes a plurality of straight segments, and each segment includes lenslets arranged in a row. The lens is disposed over a carrier having an array of light emitting diodes (LEDS) disposed such that some of the LEDs are offset from a center of an associated cell, or a plurality associated with a shared cell and disposed at different positions along a groove direction.

Abstract: Methods for emulating interaction of entities within water systems are provided. The methods can include introducing a sensor assembly into a water system. The sensor assembly can include: a circuit board supporting processing circuitry components on either or both of opposing component support surfaces of the circuit board; a housing about the circuit board and the components, the housing being circular about the circuit board in at least one cross section; and wherein the support surfaces of the circuit board are substantially parallel with the plane of the housing in the one cross section.

Abstract: A process involves adding charged fibers with surface-cured “temperature-sensitive gel” during the preparation of concrete; preparing charged fibers with surface-cured “temperature-sensitive gel” by spraying, which envelops the charged fibers with a layer of “temperature-sensitive gel”; then solidifying the temperature-sensitive gel layer on the surface of the charged fibers by adjusting the environmental temperature. Utilizing the physical state of the temperature-sensitive gel at different temperatures, the “temperature-sensitive gel” wraps around the charged fibers to form an insulating layer. This prevents the scattering of the charged fibers due to charge repulsion during their introduction into the concrete preparation process, ensuring they are evenly distributed.

Abstract: A control device including a first shell; a battery pack mounting part; a first control unit, which is provided in the first shell and is used for cutting off power transmission from a battery pack to an electric power tool when the battery pack is abnormal; a first user operation unit, which is arranged on the first shell and is operated by a user to control the electric power tool; and a first interface, electrically connected to the first user operation unit. An electric power tool system comprises the control device and the electric power tool. The control device can be adapted to different types of electric power tools, and the control device is not provided with a control portion used for adjusting working parameter of the electric power tool, such that the control device can more flexibly match an upgraded new electric power tool.

Abstract: Organism monitoring devices and organism monitoring methods are described. According to one aspect, an organism monitoring device includes a housing configured to be physically associated with an organism to be monitored, an antenna, signal generation circuitry comprising an oscillator configured to generate an oscillation signal, and an output node configured to output the oscillation signal, impedance matching circuitry coupled with the housing, the antenna and the signal generation circuitry, and wherein the impedance matching circuitry is configured to match an impedance of the signal generation circuitry and an impedance of the antenna, and wherein the impedance matching circuitry is further configured to receive the oscillation signal and to provide the oscillation signal to the antenna, and wherein the antenna is configured to emit a wireless signal externally of the organism monitoring device as a result of the provision of the oscillation signal to the input of the antenna.

Abstract: Aquatic organism monitoring devices and aquatic organism monitoring methods are described. According to one aspect, a monitoring device includes a housing configured to be physically associated with an aquatic organism, environmental circuitry configured to generate a first output indicative of at least one environmental parameter of an environment of the organism, behavioral circuitry coupled with the housing and configured to generate a second output indicative of at least one behavioral parameter of the organism, physiological circuitry coupled with the housing and configured to generate a third output indicative of at least one physiological parameter of the organism, and a transmitter configured to transmit an acoustic signal externally of the housing, and wherein the acoustic signal includes information regarding one or more of the at least one environmental parameter, the at least one behavioral parameter, and the at least one physiological parameter.

Abstract: The invention discloses a low power consumption and high precision resistance-free CMOS reference voltage source circuit, which includes a, a positive temperature coefficient voltage generation circuit and a starting circuit. The self-bias current source circuit uses two NMOS tubes with different threshold voltages in the subthreshold region to form a stack structure, which generates the bias current and negative temperature coefficient voltage on the order of nanoampere. The positive temperature coefficient voltage generation circuit uses PMOS differential to generate positive temperature coefficient voltage for the structure and performs first-order curvature compensation for negative temperature coefficient voltage.

Abstract: There is provided a method for determining text blocks of a PDF text, including: acquiring information of characters of the PDF text; performing an initial division according to gap outliers of the PDF text in a transverse direction and a longitudinal direction, and adding block tags of first text blocks to the information of characters; sequentially processing inaccurate lines and inaccurate words in each first text block according to baselines of characters, character lengths, character spaces and character indexes; performing a baseline arrangement on lines of the PDF text; sequentially comparing two lines to form second text blocks; and sequentially comparing two second text blocks to identify whether to perform a secondary merging and a secondary division.