Abstract: Disclosed are new metallocenes, catalyst systems, and processes, in which the catalyst systems may include metallocene-solid super acids (SSA) activator-support combinations. Ansa-metallocenes having a cyclopentadienyl ligand and a fluorenyl ligand bridged by a linking group of the formula >C[C6H2R1R22][R3] are described, wherein R1 is —O(CH2)mCH?CH2; each R2 is independently H or a C1-C20 hydrocarbyl group; R3 is H, a C1-C20 hydrocarbyl group, or [C6H2R4R52]; R4 is H, a C1-C20 hydrocarbyl group, or —O(CH2)nCH?CH2; each R5 is independently H or a C1-C20 hydrocarbyl group; and m and n are selected independently from an integer from 1 to 20. The catalyst systems exhibit high activity and produce polyethylenes with high molecular weights and low levels of long chain branching (LCB) as compared to polyethylenes produced with a benchmark metallocene.

Abstract: Sulfated bentonite compositions are characterized by a total pore volume from 0.4 to 1 mL/g, a total BET surface area from 200 to 400 m2/g, and an average pore diameter from 55 to 100 Angstroms. The sulfated bentonite compositions also can be characterized by a d50 average particle size in a range from 15 to 50 ?m and a ratio of d90/d10 from 3 to 15. The sulfated bentonite compositions can contain a sulfated bentonite and from 10 to 90 wt. % of colloidal particles, or the sulfated bentonite compositions can contain a sulfated bentonite and from 0.2 to 10 mmol/g of zinc and/or phosphorus. These compositions can be utilized in metallocene catalyst systems to produce ethylene based polymers.

Abstract: Disclosed herein are heterocene compounds and catalyst compositions containing the heterocene compounds that can be used for the polymerization of olefins. For example, catalyst compositions disclosed herein can be used in polymerization processes to produce olefin polymers having higher molecular weights than catalyst compositions comprising conventional metallocene compounds. The catalyst compositions comprising the heterocenes also may demonstrate an increased metallocene activity as compared to otherwise identical catalyst systems that contain conventional metallocene compounds.

Abstract: Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 1 g/10 min, a density from 0.93 to 0.965 g/cm3, a CY-a parameter at 190° C. of less than 0.2, an average number of short chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 40,000 to 60,000 g/mol, and an average number of long chain branches per 1000 total carbon atoms of the polymer in a molecular weight range of 400,000 to 600,000 g/mol that is greater than that in a molecular weight range of 4,000,000 to 6,000,000 g/mol.

Abstract: The present invention relates to a keyboard backlight technology, and solves the problems of large demand for LEDs, high cost, high power consumption, complex design, and low brightness of conventional modules. Provided is an LED keyboard backlight module, comprising a backlight module and a key position module. The core lies in the innovative design of the backlight module: light position distribution areas are proportionally arranged on an FPC light board, and a light emitting module is installed thereon; the FPC light board is adhered with an LGP with an upper surface flush with the light emitting module. In the present invention, the quantity of LEDs is decreased from 90-300 to 10-90, thereby greatly reducing costs and power consumption, increasing brightness and yield, and simplifying module design.

Abstract: Embodiments of the present disclosure provides a method for generating a media work, a device and a medium. The method includes: displaying a creation page in response to an operation instruction for a media application, where the creation page displays a creation control; displaying a work generation page in response to an interaction instruction for the creation control; displaying a first media work on the work generation page in response to an input instruction of description information in the work generation page, wherein the description information includes prompt information and a material; displaying a work processing page in response to a publication instruction of publishing the first media work to the media application; and obtaining a second media work in response to a processing instruction for the first media work on the work processing page, wherein the second media work is used for being published to the media application.

Abstract: The present disclosure provides a method for data analyzing a media application, an electronic device and a storage medium. The method includes: displaying, in response to a display instruction for a management page of the media application, a management page, a data analysis control being displayed on the management page; displaying, in response to an interactive instruction on the data analysis control, a data analysis page; displaying, in response to an input instruction on an analytical object on the data analysis page, an analysis result of the analytical object and an operation control corresponding to the analysis result on the data analysis page, the operation control being used to trigger display of a processing page corresponding to the analysis result, and the analytical object including at least one media work.

Abstract: A dual power supply transfer switch (SSATS) for switching between a first power supply (S1) and a second power supply (S2) to supply power to a load is provided, includes: a solid-state switch (SS); a mechanical switch (CTR); and a compensation power module (AUX). In the case that the S1 fails in supplying power to the load, the AUX uses the S2 to supply power to the load, and the output current of the S1 is reduced. After satisfying the turn off condition for the SS, the SS turns off the S1, the CTR turns off the S1 and turns on the S2. After the S2 is adjusted to synchronize with the phase of the output current of the S1, the SS turns on the S2 and the AUX stops outputting current. The SSATS provides advantages such as fast transfer, zero interruption, and short voltage sag time.

Abstract: A solid-state automatic transfer switch and an operating method thereof is provided. The solid-state automatic transfer switch may include: a first input terminal, configured to input a first power supply; a second input terminal, configured to input a second power supply; a power supply gating module, including a solid-state switch and configured to gate one of the first power supply and the second power supply as a current gated power supply; an isolation & inverter module, configured to generate an isolation & inverter power supply based on control of a control module; a control module, configured to detect a circuit state and control, based on a result of the detecting, switching of the current gated power supply by the power supply gating module; and a power supply output terminal, configured to output at least one of the current gated power supply and the isolation & inverter power supply.

Abstract: According to an aspect of the present disclosure, there is provided a switching circuit including a main power supply circuit connected between power sources and a load, wherein the power sources include a first power source and a second power source, and the main power supply circuit includes a transfer switch connected between the power sources and the load and configured to switch between the first power source and the second power source; and a power electronic switch for turning on or off the main power supply circuit, wherein the power electronic switch is connected between the transfer switch and the load.

Abstract: This disclosure relates to new synthetic methods for preparing substituted fluorene compounds and fluorenyl-substituted metallocenes, which are useful in applications such as olefin polymerization catalysis. The new methods involve a Pd-catalyzed, one-pot tandem reaction of a 1,2-dihalobenzene with a 2-methylarylboronic acid using non-conventional and unexpected reaction conditions, which may improve existing methods by providing higher yields, higher selectivity, and/or the ability to incorporate a wider range of substituents with various steric and electronic properties and regiochemistries which are difficult to access using existing methods.

Abstract: Techniques for performing Border Gateway Protocol (BGP) backup path selection are provided. In one set of embodiments, a BGP speaker can select a best path for an Internet Protocol (IP) prefix and can determine that the best path is in a first fate shared group comprising a group of paths that are vulnerable to a common failure. The BGP speaker can then determine one or more candidate backup paths that are in a second fate shared group different from the first fate shared group (or are not in any fate shared group) and can select at least one of the one or more candidate backup paths as a backup path for the IP prefix.

Abstract: Matrix multiplication operations can be implemented, at least in part, on one or more tensor cores of a parallel processing unit. An efficiency of the matrix multiplication operations can be improved in cases where one of the input operands or the output operand of the matrix multiplication operation is a square matrix having a triangular data pattern. In such cases, the number of computations performed by the tensor cores of the parallel processing unit can be reduced by dropping computations and/or masking out elements of the square matrix input operand on one side of the main diagonal of the square matrix. In other cases where the output operand exhibits the triangular data pattern, computations can be dropped or masked out for the invalid side of the main diagonal of the square matrix. In an embodiment, a library implementing the matrix multiplication operations is provided.

Abstract: Disclosed are single-metallocene catalyst systems and processes for polymerizing olefins using new metallocenes and solid super acids (SSA) activator-support combinations which produce polyethylenes having a higher PDI (polydispersity index, Mw/Mn) and a lower LCB (long chain branching) as compared to polyethylenes produced with a benchmark metallocene. A series of silyl-bridged bis(indenyl) metallocenes having an omega-(?-)alkenyl moiety on the silyl bridge were prepared and found to exhibit excellent polymerization activities and produced polyethylenes with broad molecular weight distributions, relatively high melt indices, and low levels of long chain branching (LCB) as compared with the silyl-bridged metallocenes absent an ?-alkenyl moiety on the silyl bridge.

Abstract: In one set of embodiments, at the time the control plane of a peer in a multi-chassis system is shut down as part of a hitless reboot, the peer can identify one or more rules programmed in its data plane that (1) are configured on an ingress interface of a multi-chassis link aggregation group (MLAG) to which the peer is connected, and (2) specify a central processing unit (CPU) of the peer as a destination for matched network traffic. The peer can then change each identified rule to specify an inter-chassis link between the peer and another peer in the multi-chassis system, rather than the CPU of the peer, as the destination for matched network traffic.

Abstract: Embodiments of the present disclosure provides a motor starter, the motor starter includes a housing including a base plate; power supply board disposed on the base plate; a first insulating board covering a side of the power supply board away from the base plate; a signal processing board disposed on a side of the first insulating board away from the base plate, and a first insulating part is disposed on a side of the signal processing board away from the base plate; and an interface board disposed on a side of the signal processing board away from the base plate, and a second insulating part is disposed on a side of the interface board facing the signal processing board, a second insulating board is disposed on a side of the interface board away from the signal processing board.

Abstract: Sulfated bentonite compositions are characterized by a total pore volume from 0.4 to 1 mL/g, a total BET surface area from 200 to 400 m2/g, and an average pore diameter from 55 to 100 Angstroms. The sulfated bentonite compositions also can be characterized by a d50 average particle size in a range from 15 to 50 ?m and a ratio of d90/d10 from 3 to 15. The sulfated bentonite compositions can contain a sulfated bentonite and from 10 to 90 wt. % of colloidal particles, or the sulfated bentonite compositions can contain a sulfated bentonite and from 0.2 to 10 mmol/g of zinc and/or phosphorus. These compositions can be utilized in metallocene catalyst systems to produce ethylene based polymers.

Abstract: The present invention provides an feed method for electroslag remelting furnace which includes the following steps: mounting a wire in a wire feeder, activating the wire feeder, passing the wire through a straightening machine and an insulating sleeve in sequence, and then stopping the wire feeder; mounting an electrode requiring electroslag on an electroslag furnace and placing the same in a crystallizer; activating a control system to start the electroslag production, the control system processing the acquired weight information, length information, and position information and comparing the same with a preset process parameter to form a comparison result; and the control system sending a control instruction according to the comparison result, and automatically adjusting the wire feeding speed of the wire feeder and the lifting height of the lifter. The wire feeding method according to the present invention has the advantages of simple operation and precise control.

Abstract: A method includes: A first network device obtains first link layer topology information corresponding to a first network slice; the first network device obtains second link layer topology information corresponding to a second network slice; the first network device determines, based on the first link layer topology information and the second link layer topology information, that a link layer topology of the second network slice is included in a link layer topology of the first network slice; the first network device receives network layer topology information that is of the first network slice and that is sent by a second network device; and the first network device determines network layer topology information of the second network slice based on the second link layer topology information and the network layer topology information of the first network slice.

Abstract: A storage system is provided. The storage system includes a first storage cluster, the first storage cluster having a first plurality of storage nodes coupled together and a second storage cluster, the second storage cluster having a second plurality of storage nodes coupled together. The system includes an interconnect coupling the first storage cluster and the second storage cluster and a first pathway coupling the interconnect to each storage cluster. The system includes a second pathway, the second pathway coupling at least one fabric module within a chassis to each blade within the chassis.