Abstract: The present invention discloses an organic Rankine cycle (ORC) power generation system with a regenerator utilizing Liquefied Natural Gas (LNG) cold energy and industrial waste heat, the system comprising: an LNG regasification circuit, an ORC circuit, and an industrial waste heat circuit. The ORC circuit utilizes the cold energy released by the LNG regasification circuit and the heat energy dispersed by the industrial waste heat circuit. A bypass is set up in the ORC circuit to adjust the working medium flow rate via the expander to ensure efficient operation of the system. The invention improves the LNG cold energy recovery method based on the existing ORC cycle. The three-fluid heat exchanger and the regenerator could make full use of the cold energy provided by the LNG regasification process, reduce the thermal stress caused by the large temperature difference, alleviate the working load of the evaporator, and thus improve the heat to electricity conversion efficiency.

Abstract: The present invention provides a method for preparing an aerogel based on plasticizing and foaming with solvent, and the aerogel material is prepared through plasticization with solvent and generation of in-situ bubbles. The method solves the difficult problem that the non-polymer is difficult to realize thermoplastic foaming, and has wide applicability. In addition, a lot of foaming agents can be uses for this method, and this method is easy to implement, and does not require a special drying process, so that the industrialization development of the porous aerogel is greatly promote.

Abstract: Provided is an audio-video-navigation (AVN) monitor drive unit for a vehicle, which is configured to tilt an AVN monitor coupled to a crash pad in a direction toward a passenger seat. The AVN monitor drive unit includes a monitor assembly, a hinge bracket slidably positioned at a rear of the monitor assembly, and a tilting portion configured to connect the monitor assembly and the hinge bracket to each other and tilt the monitor assembly from the hinge bracket.

Abstract: In one aspect, the disclosure relates to azide-containing poly(ether imide) polymers (PEIs; N3-PEI-N3) synthesized via a heterogenous diazotizationazidation reaction. In one aspect, the azide-containing PEIs can be solution-cast into films and then thermally crosslinked. In a further aspect, the crosslinked PEIs (X-PEIs) exhibit superior thermal and mechanical properties. In a still further aspect, X-PEIs display outstanding resistance to classical solvents for conventional PEI, including THF, DCM, chloroform, DMF, and NMP. In another aspect, with an initial number average molecular weight (Mn) of 8.9 kDa, the disclosed azide-containing PEIs have a high crosslinking density and thus possess desirable thermal, mechanical, and solvent resistance properties.

Abstract: A power tool includes a functional element, a motor, a power supply module, a driver circuit, and a control module. The control module is electrically connected to the driver circuit and configured to output a control signal to the driver circuit to control the driver circuit. The control module is configured to: in the case where the power tool is in a first operation stage, control the driver circuit in a first control mode so that a voltage of the motor varies with a rotor position of the motor in a square wave; and in the case where the power tool is in a second operation stage, control the driver circuit in a second control mode so that the voltage of the motor varies with the rotor position of the motor in a sine wave or a saddle wave.

Abstract: Methods for performing non-invasive thrombolysis with ultrasound using, in some embodiments, one or more ultrasound transducers to focus or place a high intensity ultrasound beam onto a blood clot (thrombus) or other vascular inclusion or occlusion (e.g., clot in the dialysis graft, deep vein thrombosis, superficial vein thrombosis, arterial embolus, bypass graft thrombosis or embolization, pulmonary embolus) which would be ablated (eroded, mechanically fractionated, liquefied, or dissolved) by ultrasound energy. The process can employ one or more mechanisms, such as of cavitational, sonochemical, mechanical fractionation, or thermal processes depending on the acoustic parameters selected. This general process, including the examples of application set forth herein, is henceforth referred to as “Thrombolysis.

Abstract: A histotripsy therapy system configured for the treatment of tissue is provided, which may include any number of features. Provided herein are systems and methods that provide efficacious non-invasive and minimally invasive therapeutic, diagnostic and research procedures. In particular, provided herein are optimized systems and methods that provide targeted, efficacious histotripsy in a variety of different regions and under a variety of different conditions without causing undesired tissue damage to intervening/non-target tissues or structures.

Abstract: An aerogel fiber having specific cross-sectional morphological feature, graphene fiber and a preparation method and device therefor are provided. The arrangement of the cross-sectional two-dimensional nanosheets of the aerogel fiber can be regulated. The regulation method includes: adding a rotating flow field device during wet spinning before the spinning fluid is sprayed out, the rotating flow field causes the two-dimensional nanosheets to form a specific sheet-like arrangement in the cross-sectional direction of the gel fiber under the action of rotating shear, and preparing a graphene oxide aerogel fiber with specific morphological structure (concentric or spiral) from the gel fiber having specific cross-sectional morphological structure under freeze-drying conditions. Further, drying and densifying, stretching and reducing the hydrogel fiber with the concentric circle structure are performed to obtain a graphene fiber with high modulus and high thermal conductivity.

Abstract: A memory system package structure and a manufacturing method thereof are disclosed. For example, the memory system package structure can include a memory chip, a memory controller and a distribution layer. The memory chip can include a first surface. The memory controller can be positioned on the first surface. The redistribution layer can be positioned on a side of the memory controller facing away from the memory chip. The memory chip and the memory controller can be electrically connected with the redistribution layer.

Abstract: Novel dry powder compositions comprising and methods relating thereto are provided. The dry powder compositions comprise PDE5 inhibitors, such as vardenafil, or pharmaceutically acceptable salts or esters thereof. The dry powder compositions may optionally include an carrier/excipient. The concentration of active agent may be at least about 2% by weight. Methods of aerosolizing the dry powder compositions and using them to treat various diseases are also disclosed.

Abstract: The present disclosure discloses a method for adjusting antenna state of a wireless AP, an smart antenna scheduling method and a wireless AP, wherein the method includes: acquiring a performance index of an antenna of a wireless AP in a current antenna state, wherein the performance index is a weighted average of negotiated rates of a plurality of clients communicably connected with the wireless AP; and adjusting the antenna state of the antenna based on the performance index of the antenna of the wireless AP in the current antenna state.

Abstract: Methods for performing non-invasive thrombolysis with ultrasound using, in some embodiments, one or more ultrasound transducers to focus or place a high intensity ultrasound beam onto a blood clot (thrombus) or other vascular inclusion or occlusion (e.g., clot in the dialysis graft, deep vein thrombosis, superficial vein thrombosis, arterial embolus, bypass graft thrombosis or embolization, pulmonary embolus) which would be ablated (eroded, mechanically fractionated, liquefied, or dissolved) by ultrasound energy. The process can employ one or more mechanisms, such as of cavitational, sonochemical, mechanical fractionation, or thermal processes depending on the acoustic parameters selected. This general process, including the examples of application set forth herein, is henceforth referred to as “Thrombolysis.

Abstract: A chainsaw includes a chain, a liquid pump assembly, a motor, and a controller. The chain is used for implementing a cutting operation. The liquid pump assembly includes a liquid pump and a motor. The liquid pump is used for releasing a liquid for lubricating or cooling the chain. The motor is used for at least driving the liquid pump to operate. The controller is electrically connected to at least the motor. The controller is configured to, when the liquid pump is in the jammed state, control the liquid pump assembly to enter a throttling mode in which a supplied amount of the liquid is reduced, and when the liquid pump exits the jammed state, control the liquid pump assembly to exit the throttling mode. Technical solutions provided by the present application can determine and release the jammed state of the chainsaw.

Abstract: The present application provides techniques for generating live streams. The techniques comprise obtaining motion attribute information and a set of virtual scene types associated with a target live streaming room; generating, based on the motion attribute information and each of the set of virtual scene types, a plurality of live streams to be played that correspond to the set of virtual scene types; receiving a live stream viewing request sent from an audience client device, where the live stream viewing request comprises a user attribute identifier; determining a target live stream among the plurality of live streams based on the user attribute identifier; and returning, to the audience client device, the target live stream for display on the audience client device.

Abstract: A power tool includes an electric motor including multi-phase windings; and a control circuit for controlling the electric motor to rotate. The control circuit includes a driver circuit including multiple switching elements having multiple driving states to drive the electric motor to rotate; a parameter detection module for detecting an electrical parameter of the control circuit; and a controller for outputting a pulse-width modulation (PWM) control signal to control the driver circuit to change the multiple driving states. The controller is configured to change the absolute value of the variation of a duty cycle of the PWM control signal according to the electrical parameter to control a steady-state error of the electric motor running in a constant speed to be within a preset range.

Abstract: Novel dry powder compositions comprising and methods relating thereto are provided. The dry powder compositions comprise PDE5 inhibitors, such as vardenafil, or pharmaceutically acceptable salts or esters thereof. The dry powder compositions may optionally include an carrier/excipient. The concentration of active agent may be at least about 2% by weight. Methods of aerosolizing the dry powder compositions and using them to treat various diseases are also disclosed.

Abstract: A headphone includes a cushion assembly and a slider telescopically coupled to the cushion assembly. The slider includes a proximal end that is disposed within the cushion assembly and a distal end extending outward from the cushion assembly. A pivot support is disposed within an opening at the distal end of the slider. A pivot is supported in the pivot support. The headphone also includes an earphone and a yoke that couples the earphone to the slider. The pivot support is secured to the slider via a fastener, and wherein the yoke is pivotable to a position in which it covers the fastener when the headphones are in use.

Abstract: A headphone includes a headband and a yoke that is pivotably coupled to the headband. The yoke includes first and second yoke arms that each extend from a pivot point to respective distal ends. An earphone is pivotably coupled to the yoke. The earphone includes an earcup that defines first and second recesses for receiving the distal ends of the yoke arms. The earcup and the yoke are configured such that the distal ends of the yoke arms can be slid into the recesses in the earcup for assembly without elastic deformation of the yoke arms or the earcup.

Abstract: A headphone includes a cushion assembly, a slider telescopingly received within the cushion assembly, and an earphone. A yoke couples the earphone to the slider. A pivot is disposed at an open end of the slider and couples the yoke to the slider. The pivot includes a barrel that is received within an opening in the yoke. The barrel is secured within the opening via a pin that is inserted into a hole in the yoke.

Abstract: Apparatus and methods are provided for applying ultrasound pulses into tissue or a medium in which the peak negative pressure (P?) of one or more negative half cycle(s) of the ultrasound pulses exceed(s) an intrinsic threshold of the tissue or medium, to directly form a dense bubble cloud in the tissue or medium without shock-scattering. In one embodiment, a microtripsy method of Histotripsy therapy comprises delivering an ultrasound pulse from an ultrasound therapy transducer into tissue, the ultrasound pulse having at least a portion of a peak negative pressure half-cycle that exceeds an intrinsic threshold in the tissue to produce a bubble cloud of at least one bubble in the tissue, and generating a lesion in the tissue with the bubble cloud. The intrinsic threshold can vary depending on the type of tissue to be treated. In some embodiments, the intrinsic threshold in tissue can range from 15-30 MPa.