Abstract: The present invention provides a composition and method for forming polymeric multifilaments having a filament diameter of no more than 10 ?m with a high tensile strength and toughness. The composition includes at least one semi-crystalline thermoplastic polymer and a nucleating agent to stabilize the multifilaments during melt-spinning and facilitate phase transformation of the thermoplastic polymer in subsequent drawing and annealing cycles. The method includes a quenching step for the melt-spun filaments immediately after the melt-spinning and collection of the quenched filaments with a specific winding speed to decrease the filament diameter. The subsequent drawing and annealing cycles further enhance the mechanical properties of the filaments after the quenching.

Abstract: A rate-sensitive protective apparel including an outer fabric shell, first and second sealing material layers positioned within the outer fabric shell, and a shear thickening fluid core disposed between the first and second sealing material layers is provided. The sealing material layers have fibers extending towards the apparel interior and enmeshing the shear thickening fluid core, and the shear thickening fluid directly contacts with the sealing material and the fibers.

Abstract: An impact dissipating bollard system includes a vertical stanchion and a composite energy-absorbing deformable cartridge configured to be positioned within a retaining foundation that includes a rigid core portion including a stanchion-receiving aperture and first and second projections extending from the rigid core portion. The first and second projections, together with the core portion, form the dumbbell shape. Energy-absorbing resilient elastic material surrounds the rigid core portion and is positioned within recesses within the first and second projections. The bollard system is configured such that impact energy is transferred from the vertical stanchion to deform the composite energy-absorbing deformable cartridge. The bollard system retaining foundation includes a reinforcing frame embedded in concrete and having a strength of least 30 MPa.

Abstract: Provided is an adaptive strap for brassieres having at least one adaptive material layer (10) having a first strength modulus x during static loading and a second strength modulus of at least 2× during dynamic loading of at least approximately 3 Hz oscillation. The adaptive layer (10) is sandwiched between two or more elastic fabric layers (20). The adaptive strap is extendable up to 100% of its initial length during low wearer activity but is extendable not more than 50% during vigorous wearer activity, providing support during exercise and comfort during daily use. In one aspect the adaptive material is a reaction product formed by reacting a silanol terminated polydimethylsiloxane, polymer matrix, boric acid and optional fillers. The adaptive material (10) is cured in situ within the elastic fabric layers (20).

Abstract: Provided herein are energy absorbing composites including a thermoplastic resin, a dilatant, a compatibilizer, a reinforcing filler, and optionally an antioxidant and methods of preparation thereof.

Abstract: An energy dissipating fiber and fabric for protective textile application, which can absorb energy during shocking, stretching and vibration. The disclosed fiber/fabric can include a polymer matrix, a shear-thickening material and a reinforcing filler.

Abstract: A burst-resistant, dispersible nano-encapsulated phase-change material includes at least one phase change core material and a shell. The shell includes the reaction product of a plurality of non-phase change materials comprising at least one monomer, an initiator, a crosslinker and at least one surfactant. The shell surrounds at least one phase change core material and is formed by low-energy emulsification followed by polymerization of a mixture of the phase change core material and the plurality of non-phase change materials in water. The mass ratio between at least one phase change core material and the plurality of non-phase change materials is 5-15:10. The nano-encapsulated phase-change material after said low-energy emulsification and polymerization has a particle size ranging between 50 and 500 nm and a heat of fusion of 60 J/g or greater.

Abstract: A quinoline derivative used for soft tissue sarcoma combination therapy, relating to a use of the quinoline derivative in combination with a second therapeutic drug to treat soft tissue sarcoma, wherein the second therapeutic drug may be a chemotherapy drug, a small molecule targeted anti-tumour drug or an immunotherapy drug. The chemical name of the quinoline derivative compound I is 1-[[[4-(4-fluoro-2-methyl-1H-indol-5-yl)oxy-6-methoxyquinolin-7-yl]oxy]methyl]cyclopropylamine.

Abstract: A compound rotor aircraft, comprises a fuselage, a lifting rotor, wings and thrust propellers, wherein the fuselage has a cabin for driving; the lifting rotor is configured to drive the fuselage to move in the vertical direction; a plurality of wings are provided and arranged symmetrically on the two sides of the fuselage; a plurality of thrust propellers are provided and arranged on the plurality of wings respectively, and are configured to provide horizontal thrust force to the fuselage to drive the aircraft to move in the horizontal direction. The aircraft has various flight modes such as helicopter mode, compound helicopter mode, gyrocopter mode, compound gyrocopter mode and fixed-wing cruising mode, and can be transited among the modes. In the case of power failure of the lifting rotor, the aircraft can be transited into a gyrocopter state and continue the flight safely.

Abstract: Provided herein are energy absorbing composites including a thermoplastic resin, a dilatant, a compatibilizer, a reinforcing filler, and optionally an antioxidant and methods of preparation thereof.

Abstract: A position-based service information prompting method for a shared vehicle, a system and an APP device are disclosed. The method comprises: acquiring a user's travel event information; acquiring a user's geographic position information corresponding to occurrence of the user's travel event information; if there is available position-based service information around a user's position, sending the information to an APP device for a shared vehicle; and prompting the service information around the user's position on a map interface of the APP device for the shared vehicle. The method provided by this disclosure is advantageous in that during the travel of a user, useful position-based service information can be prompted with reference to the user's travel event.

Abstract: A differential amplifier includes an input stage (13) and an output stage (100) including an output transistor (M11) having a source coupled to a supply voltage (VDD), a gate coupled to a terminal (14) of the input stage, and a drain coupled to an output conductor (22). A recovery circuit (1A) is coupled between the supply voltage and the gate of the output transistor for limiting the voltage on the gate of the output transistor in response to the output voltage be within a predetermined range of the supply voltage and includes a recovery transistor (M4) with a source coupled to the output conductor and a drain coupled to the gate of the output transistor and a common-gate amplifier (29A) having a built-in offset a first input coupled to the output conductor, a second input coupled to the supply voltage, and an output coupled to the gate of the recovery transistor.

Abstract: A differential amplifier includes an input stage (13) and an output stage (100) including an output transistor (M11) having a source coupled to a supply voltage (VDD), a gate coupled to a terminal (14) of the input stage, and a drain coupled to an output conductor (22). A recovery circuit (1A) is coupled between the supply voltage and the gate of the output transistor for limiting the voltage on the gate of the output transistor in response to the output voltage be within a predetermined range of the supply voltage and includes a recovery transistor (M4) with a source coupled to the output conductor and a drain coupled to the gate of the output transistor and a common-gate amplifier (29A) having a built-in offset a first input coupled to the output conductor, a second input coupled to the supply voltage, and an output coupled to the gate of the recovery transistor.

Abstract: An input to a rail-to-rail, FET, operational amplifier having a transconductance that is constant throughout the operating range of the operational amplifier is presented. The input of an operational amplifier typically includes an input stage, a current source and a current transfer circuit, wherein the input stage comprises both N-type transistors and P-type transistors. The present application discloses the use of a duplicate of those elements: a proportional input stage, a proportional current source, and a proportional current transfer circuit, which together are used to emulate the operation of the input stage. By monitoring these proportional duplicates, one can determine when both input pairs are operating. When both input pairs are operating, a minimum selector circuit interfaces with the current transfer circuit to reduce the current supplying one of the input pair transistors, thus reducing the overall transconductance of the circuit.

Abstract: An input to a rail-to-rail, FET, operational amplifier having a transconductance that is constant throughout the operating range of the operational amplifier is presented. The input of an operational amplifier typically includes an input stage, a current source and a current transfer circuit, wherein the input stage comprises both N-type transistors and P-type transistors. The present application discloses the use of a duplicate of those elements: a proportional input stage, a proportional current source, and a proportional current transfer circuit, which together are used to emulate the operation of the input stage. By monitoring these proportional duplicates, one can determine when both input pairs are operating. When both input pairs are operating, a minimum selector circuit interfaces with the current transfer circuit to reduce the current supplying one of the input pair transistors, thus reducing the overall transconductance of the circuit.

Abstract: Bias circuitry of an electronic circuit is disabled by interrupting a compensated feedback loop in a bias control circuit that, when enabled, produces a predetermined bias voltage (VBIAS+) applied to the bias circuitry. A trickle charging current is conducted into a compensation capacitor of the feedback loop while the bias circuitry is disabled, to charge the compensation capacitor to a predetermined threshold voltage which causes the feedback loop and bias control circuit, when enabled, to produce the predetermined voltage needed by the bias circuitry to bias the CMOS operational amplifier for normal operation. Next, the feedback loop is enabled. Since the compensation capacitor is already precharged to the predetermined voltage, the bias circuitry of the CMOS operational amplifier is very quickly enabled from the disabled condition.