Abstract: The present invention discloses a collapsible structure having at least two standing frames connected by an extendable linkage. Each standing frame comprises at least two standing poles. Two standing poles are pivotally connected to each other by a pivot point. The standing frame also includes a linking device that enables two standing poles to be folded or unfolded. The extendable linkage connected to two adjacent standing frames comprises at least one extendable link assembly capable of adjusting the distance of its two ends. The collapsible structure also includes a locking device and telescoping tubes.

Abstract: An instant foldable tent is provided which comprises a top support portion and a ground support portion; the top support portion has at least two groups of radially-disposed top support poles, and the ground support portion has at least three leg poles; a beam crossing pole is disposed between two adjacent leg poles; one end of the top support poles is connected to a top disk disposed at a radiation center, the other ends of one group of top support poles are connected to the leg poles one to one, and the other ends of another group of top support poles are connected to the beam crossing poles. At the same time, the bend disposal of one end of some of the top support poles makes the tent structure more streamlined, thus more convenient to drain rainwater and reduce wear.

Abstract: A fusion protein for restoring functions of failing immune cells and application thereof. The fusion protein has a functional area for recognizing the failing immune cell and a functional area for conducting activation and amplification on the failing immune cell. The two functional areas are connected through a non-functional amino acid fragment with a certain length. The functional area for recognition uses the immune checkpoint specific antibody to recognize a phenotypic receptor of failing immune cells. The functional area for conducting activation and amplification adopts the cytokine or functionally-similar mutants, a ligand of the phenotypic receptor or functionally-similar mutants or an activating antibody to activate failing immune cells.

Abstract: The present disclosure discloses a foldable trolley, comprising a pull rod assembly, a front support, a rear support, an underframe folding assembly, a side frame folding assembly and a roller set; one end of the underframe folding assembly is hinged with the bottom of the front support, while the other end of the underframe folding assembly hinged with the bottom of the rear support; both sides of the front support and the rear support are connected with the side frame folding assemblies. Due to the arrangement of the underframe folding assembly and the side frame folding assembly, the trolley is contractile for folding in the front-back direction, occupying less space when the trolley is folded, and articles are transported when the trolley is unfolded, being convenient to carry.

Abstract: A fusion protein for restoring functions of failing immune cells and application thereof. The fusion protein has a functional area for recognizing the failing immune cell and a functional area for conducting activation and amplification on the failing immune cell. The two functional areas are connected through a non-functional amino acid fragment with a certain length. The functional area for recognition uses the immune checkpoint specific antibody to recognize a phenotypic receptor of failing immune cells. The functional area for conducting activation and amplification adopts the cytokine or functionally-similar mutants, a ligand of the phenotypic receptor or functionally-similar mutants or an activating antibody to activate failing immune cells.

Abstract: The present disclosure provides a frame for tents or canopies which alleviates standing water during rainy outdoor weather. The frame comprises a plurality of foot poles, a plurality of hinged beam assemblies, a plurality of frame supporting poles and a top plate. Each foot pole is hinged to one frame supporting pole, each frame supporting pole is connected to the top plate, and each hinged beam assembly connects two adjacent foot poles of the plurality of foot poles. The disclosed frame provides increased frame strength and stability.

Abstract: The present disclosure provides a frame for tents or canopies which alleviates standing water during rainy outdoor weather. The frame comprises a plurality of foot poles, a plurality of hinged beam assemblies, a plurality of frame supporting poles and a top plate. Each foot pole is hinged to one frame supporting pole, each frame supporting pole is connected to the top plate, and each hinged beam assembly connects two adjacent foot poles of the plurality of foot poles. The disclosed frame provides increased frame strength and stability.

Abstract: A tent with a reinforced frame-supporting structure is provided, comprising a top disc (1), a plurality of vertex angle support bars (2) whose tops are circumferentially and obliquely connected with the top disc (1), foot bar supports (3) connected with the bottom of each vertex angle support bar (2), hinged beams (4) arranged between two adjacent vertex angle support bars (2), wherein either end of the hinged beams (4) is connected with the upper end of adjacent foot bar supports (3) respectively, a frame-reinforcing support bar (5) is provided between the hinged beam (4) and the top disc (1) whose top is obliquely connected with the top disc (1) and bottom is connected with the middle hinged portion of the hinged beam (4). The tent has the advantages of reinforced-frame structure, increased-hinge stability and prevention of water accumulation in the middle of the inclined plane of the top fabric.

Abstract: A tent with a reinforced frame-supporting structure is provided, comprising a top disc (1), a plurality of vertex angle support bars (2) whose tops are circumferentially and obliquely connected with the top disc (1), foot bar supports (3) connected with the bottom of each vertex angle support bar (2), hinged beams (4) arranged between two adjacent vertex angle support bars (2), wherein either end of the hinged beams (4) is connected with the upper end of adjacent foot bar supports (3) respectively, a frame-reinforcing support bar (5) is provided between the hinged beam (4) and the top disc (1) whose top is obliquely connected with the top disc (1) and bottom is connected with the middle hinged portion of the hinged beam (4). The tent has the advantages of reinforced-frame structure, increased-hinge stability and prevention of water accumulation in the middle of the inclined plane of the top fabric.