Abstract: Disclosed are a hydrogenation catalyst, a preparation method for same, and applications thereof. Also disclosed is a hydrogenation reaction method employing the hydrogenation catalyst. The hydrogenation catalyst of the present invention comprises a binding agent and an active component. The active component comprises nickel and a group VIB metal element. The binding agent comprises zirconium oxide and aluminum oxide. The catalyst of the present invention has nickel serving as the main active ingredient and is inexpensive. Moreover, the catalyst of the present invention exhibits an increased catalytic activity in a hydrogenation reaction of phenolic compounds and specifically provides an increased low-temperature reaction activity. The catalyst of the present invention is applicable in a continuous production process, thus implementing the continuous production of a hydrogenated bisphenol A product and providing the product with high and stable quality.

Abstract: A method for crystal pulling is provided. The method includes the following. The method includes performing an equal-diameter process. The equal-diameter process is performed as follows. From the first equal-diameter stage to the third equal-diameter stage, the crystal rotation rate is gradually increased after starting at a first initial crystal rotation rate, and then is kept at a constant rotation rate after gradually increasing the crystal rotation rate. The crucible rotation rate is gradually increased from a first initial crucible rotation rate to a maximum crucible rotation rate after starting at the first initial crucible rotation rate in the first equal-diameter stage, the crucible rotation rate is kept at the maximum crucible rotation rate in the second equal-diameter stage, and the crucible rotation rate is gradually decreased after the second equal-diameter stage. The method further includes a cooling process.

Abstract: A magnetically-isolated wireless charging assembly enabling temporary attachment by magnetism to a device requiring charge by induction includes a housing defining an accommodating space, a plurality of magnetic members disposed within the accommodating space, a wireless charging receiver covering the plurality of magnetic members, and a wireless charging receiver. The wireless charging receiver is disposed on a side of the magnetic shielding member facing the plurality of magnetic members and the magnetic shielding member prevents the magnetic field of the magnetic members extending through or beyond the shielding member.

Abstract: Disclosed is a method for preparing a three-dimensional porous nano composite cooling film in large scale. The cooling film is prepared from 0.1-0.5 parts of cellulose acetate, 1-5 parts of water, 20-100 parts of acetone, an additive, and 10-20 parts of nano microspheres through a cooperative formulation of cellulose acetate, nano microsphere materials and the additive. The composite cooling film is obtained by self-deposition of cellulose acetate and nano microspheres, and liquid volatilization during film forming process leads to formation of the three-dimensional porous structure. The film has an effect of enhancing radiation of infrared heat into space, which could significantly reduce a temperature of a substrate surface and achieve rapid and strong cooling. The film could achieve effective cooling without external power and other active cooling equipment, with or without sunlight.

Abstract: A power supply device and a control method for the same are disclosed. The method comprises: controlling, when there is the abnormal situation in the first input power supply, a first access point of a first relay and a third access point of the first relay to be disconnected, a second access point of the first relay and a fourth access point of the first relay to be disconnected, a common access point of a third relay and a second access point of the third relay to be connected, a common access point of a fourth relay and a second access point of the fourth relay to be connected, a first access point of a second relay and a third access point of the second relay to be connected, and a second access point of the second relay and a fourth access point of the second relay to be connected.

Abstract: The present invention discloses a 4-1BB-binding protein and use thereof. The 4-1BB-binding protein comprises a heavy chain variable region, wherein the heavy chain variable region comprises HCDR1, HCDR2 and HCDR3, wherein the HCDR1 comprises a sequence as set forth in SEQ ID NO: 15 or a variant 1 thereof, or SEQ ID NO: 16; the HCDR2 comprises a sequence selected from SEQ ID NO: 60 or a variant 2 thereof, and SEQ ID NO: 50 or a variant 4 thereof; the HCDR3 comprises a sequence as set forth in SEQ ID NO: 103 or a variant 3 thereof, SEQ ID NO: 333 or a variant 5 thereof, SEQ ID NO: 110, SEQ ID NO: 111, SEQ ID NO: 116, SEQ ID NO: 326, SEQ ID NO: 331, SEQ ID NO: 334 or SEQ ID NO: 96. The 4-1BB-binding protein of the present invention is a fully human antibody having the binding activity to human 4-1BB and cynomolgus monkey 4-1BB. Some 4-1BB-binding proteins are only half the size of conventional IgG antibodies; they can be well used for bispecific antibodies.

Abstract: Disclosed in embodiments of the present invention are a control method, apparatus, device, and medium for a power factor correction (PFC) circuit, used for solving the problems of high implementation costs and relatively severe THD that exist in existing PFC circuit control methods. The control method for a power factor correction (PFC) circuit, comprising: acquiring circuit parameter information of the PFC circuit; when determining that the circuit parameter information meets a preset switching condition, switching a control mode of the PFC circuit to be a continuous conduction mode (CCM).

Abstract: The invention relates to a vacuum cleaner. The vacuum cleaner comprises a head portion; a body; a vacuum module positioned in the body, the vacuum module being adapted to generate suction for collecting dust via the head portion; a hose member adapted to connect the head portion with the vacuum module; and a guide member associated with the hose member; wherein the guide member is adapted to guide movement of the hose member such that, in response to movement of the guide member, the hose member automatically extends between a retracted position and an extended position to thereby position the head portion relative to the body.

Abstract: Disclosed in the present invention are a control method and device for a power factor correction circuit. The method comprises: obtaining voltage information of the power factor correction circuit; determining whether the voltage information meets a set switching condition; if the set switching condition is met, switching a control mode of the power factor correction circuit to a continuous conduction mode; and if the set switching condition is not met, switching the control mode of the power factor correction circuit to a triangular wave current mode or a critical conduction mode. Compared with the prior art, the control mode of the power factor correction circuit can be different according to the voltage information in the embodiment of the present invention, instead of remaining unchanged at all times, without increasing the withstand voltage level of the bus capacitor, thereby reducing the cost of implementation.

Abstract: Described is a low power and low jitter phase locked loop (PLL) or delay locked loop (DLL) with digital leakage compensation. The compensation is provided by an apparatus which comprises: a circuitry to generate a pulse with a digitally controlled pulse width, wherein the pulse width is proportional to a static phase error of a PLL or a DLL; and a charge pump coupled to the circuitry, wherein the charge pump is to receive the pulse and to source or sink current to or from a node according to the pulse width.

Abstract: Described is a low power and low jitter phase locked loop (PLL) or delay locked loop (DLL) with digital leakage compensation. The compensation is provided by an apparatus which comprises: a circuitry to generate a pulse with a digitally controlled pulse width, wherein the pulse width is proportional to a static phase error of a PLL or a DLL; and a charge pump coupled to the circuitry, wherein the charge pump is to receive the pulse and to source or sink current to or from a node according to the pulse width.

Abstract: Disclosed in embodiments of the present invention are a control method, apparatus, device, and medium for a power factor correction (PFC) circuit, used for solving the problems of high implementation costs and relatively severe THD that exist in existing PFC circuit control methods. The control method for a power factor correction (PFC) circuit, comprising: acquiring circuit parameter information of the PFC circuit; when determining that the circuit parameter information meets a preset switching condition, switching a control mode of the PFC circuit to be a continuous conduction mode (CCM).

Abstract: The invention relates to a vacuum cleaner. The vacuum cleaner comprises a head portion; a body; a vacuum module positioned in the body, the vacuum module being adapted to generate suction for collecting dust via the head portion; a hose member adapted to connect the head portion with the vacuum module; and a guide member associated with the hose member; wherein the guide member is adapted to guide movement of the hose member such that, in response to movement of the guide member, the hose member automatically extends between a retracted position and an extended position to thereby position the head portion relative to the body.

Abstract: System and techniques for autonomously adaptive performance monitoring are described herein. A text input field may be presented on a graphical user interface. A flow-selector may be presented in contact with the text input field in response to receiving user input at the text input field. Here, the flow-selector includes a set of flow choices selected based on the user input. A user selection of a flow choice may be received. Next-steps flow elements may be presented in response to the user selection. User query choices may be collected from the next-steps flow elements to populate a query template corresponding to the flow choice. The query template is executed to produce search results.