Abstract: The disclosure relates to a high-temperature high-entropy alloy with light weight and high strength in as-cast state and the preparation method thereof. The high-temperature high-entropy alloy is composed of Ti, Al, Nb, V, and Sc elements, and has an alloy composition of Ti(2.9-3.1)Al(1.9-2.1)Nb(0.8-1.2)V(1.9-2.1)Scx, where 0.1?x?0.3. Moreover, the disclosure provides a method for preparing the high-temperature high-entropy alloy by melting. The preparation method of the high-temperature high-entropy alloy with light weight and high strength proposed by the disclosure is simple with uniform organization and less casting defects, which is suitable for promotion and use.

Abstract: A high-efficiency and multifunctional sludge conditioner and a preparation method thereof is disclosed. The preparation method includes: soaking and adsorbing bacterial cellulose in an alkaline solution, and then taking out the bacterial cellulose to carbonize and activate the same at 380-480° C. and in a nitrogen atmosphere to obtain pretreated bacterial cellulose; and dispersing the pretreated bacterial cellulose in water, adding with an acrylamide monomer and an initiator for in-situ polymerization, and successively subjecting a reaction product to centrifugal separation, drying and crushing to obtain the high-efficiency and multifunctional sludge conditioner.

Abstract: A pet waste collection apparatus has an elongated body extending from a first end to a second end. A trigger handle is coupled to the first end and a retractable handle is coupled to the second end. A gripping sleeve surrounds a portion of the elongated body wherein the elongated body is configured to slidably translate through the gripping sleeve. The pet waste collection apparatus further includes a cartridge grasping subsystem coupled to the gripping sleeve. The cartridge grasping subsystem is configured to position a cartridge below the retractable claw wherein the retractable claw is configured to puncture through the cartridge. The cartridge may include a bag liner which can surround the retractable claw under puncturing the cartridge.

Abstract: A display apparatus is disclosed, the display apparatus a lid cover hingedly coupled to a container. The lid cover has a spring bias pushing the display apparatus into an open state. A latch is configured to engage with the lid cover and hold the lid cover into a closed state. A display screen is coupled to the lid cover such that while in the closed state the display screen is concealed from external view. While in the open state, the display screen is upright and externally viewable. An actuator is mechanically coupled to the latch such that upon activation of the actuator, the latch is configured to disengage from lid cover, thereby converting the display apparatus from a closed state to an open state.