A variable-diameter reinforcing cage for an anchor rod or pile foundation, comprising an axial rod (4), a plurality of vertical bars (2), at least two circular fixators (5) and several groups of ribs (3) which correspond to the circular fixators (5). The circular fixators (5) are all sleeved on the axial rod (4); each circular fixator (5) is arranged in a circular manner and used for movably fixing a group of ribs (3) of which the quantity is the same as that of the plurality of vertical bars (2); one end of the ribs (3) is movably connected to the position of the vertical bars (2) at the same height, and the other end of the ribs (3) is movably connected to the circular fixators (5); annular hoops (6) are arranged on the periphery of the vertical bars (2) to serve as circles of latitude; fixing points are formed on the annular hoops (6) and the vertical bars (2); and the annular hoops (6) are annular spiral spring hoops of an elastic material or flexible steel wires.

A security tag including: a housing and circuitry which detects a locked state, the circuitry configured to execute a signal transfer function responsive to interchanging a pin and a lanyard in the circuitry, and / or the housing including a replaceable battery compartment locked by inserting either the pin or the lanyard into a lock mechanism which differently secures the pin and the lanyard; and an alarm, in communication with the circuitry, triggered by an undisarmed breach of the locked state.

Provided are single-domain antibodies targeting BCMA, and chimeric antigen receptors (such as monovalent CAR, and multivalent CAR including bi-epitope CAR) comprising one or more anti-BCMA single-domain antibodies. Further provided are engineered immune effector cells (such as T cells) comprising the chimeric antigen receptors. Pharmaceutical compositions, kits and methods of treating cancer are also provided.

Disclosed is a method for preparing an anti-bacterial surface on a medical material surface, comprising the steps of: (1) conducting chemical graft of amino silane after performing oxygen plasma pretreatment to the medical material surface and then reacting the medical material on the amino silane surface with an acyl compound; (2) placing the medical material with an initiator-modified surface into an anti-adhesion aqueous monomer solution for a graft polymerization reaction; (3) placing the medical material with an anti-adhesion polymer brush-modified surface into an azide compound-containing dimethylformamide solution; and (4) placing the medical material with an azide surface into an antibacterial agent click solution for a click reaction, obtaining an anti-adhesion polymer layer- and antibacterial agent layer-comodified antibacterial surface. The method prevents mutual interference of the anti-adhesion ability and bectericidal ability, and has good long-acting antibacterial performance.

A carbon-based porous material microscopically exhibiting a three-dimensional cross-linked net-like hierarchical pore structure, a specific surface area of 500-2500 m2/g and a water contact angle greater than 90°. The surface of the carbon-based porous material has a through hierarchical pore structure with mesopores nested in macropores and micropores nested in mesopores, the content of mesopores is high, and there are more adsorption active sites exposed on the surface of the material, so that the diffusion path for organic gas molecules in the adsorption process is shortened. At the same time, the absorption and desorption rates may also be accelerated and the desorption temperature may be lowered. Furthermore, benefits result for solving the desorption and recovery problems of organic gas molecules. Moreover, the defects of ordinary porous carbon materials being easily hygroscopic, having a weakened capacity to adsorb target gas molecules in a humid environment, etc. are further effectively solved.

The present invention relates to a process comprising the step of contacting an aqueous dispersion of swelled polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L. The swelled polymer particles arise from neutralization of alkali swellable polymer particles having a high acid core content and a low Tg shell. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications.

The present invention relates to a process for preparing a coatings composition with an open time additive comprising the steps of a) contacting an aqueous dispersion of alkali swellable polymer particles with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L; and b) neutralizing the alkali swellable particles with a non-volatile base after or upon contact with the rheology modifier and the binder to form swelled multi-staged polymer particles; wherein the alkali swellable polymer particles comprise a shell having a Tg of not greater than 25 °C and an acid functionalized core; and wherein the core-to-shell ratio is in the range of from 1:3.2 to 1:10. The composition arising from the process of the present invention is useful for improving open time, especially for low VOC coatings applications. In another aspect the present invention relates to the preparation of the coatings composition with an open time additive comprising the steps of a) contacting the open time additive with a rheology modifier and a binder to form a coatings composition with a VOC of less than 50 g/L, then b) neutralizing the open time additive to form swelled multi-staged polymer particles, wherein the coatings composition with the open time additive exhibits less than a 50% increase in viscosity than the coating composition without the open time additive.

The present invention relates to a cholic acid modified glucosamine derivative and a preparation method and use therefor, the derivative being as shown in formula (I), wherein R1 is H or OH, R2 is H or OH, R3 is H, CH2 = CHCO- or CH2 = C(CH3)CO-. In the presence of a carbodiimide condensation reagent, reacting the cholic acid with excess acid N- hydroxysuccinimide or 1-hydroxybenzotriazole generates an cholic acid active ester, and then reacting with D- glucosamine to obtain a derivative without polymerizable groups; or first reacting the cholic acid active ester with acyl chloride containing vinyl, and then reacting with D- glucosamine to obtain a derivative with polymerizable groups. The derivative of the present invention has a good biocompatibility, the derivative without polymerizable groups can be used as a medicine for the treatment of osteoarthritis, and the derivative with polymerizable groups is an organic matrix for a cartilage prosthesis material, or for constructing in situ molded glucosamine functional hydrogels.

An evaluation method, device, and system for a human motor capacity. The method comprises: acquiring, by means of multiple inertial sensors (74), motion posture data of a human body part under test, wherein the part under test comprises at least one joint, and the multiple inertial sensors (74) are fastened, according to a predetermined human motion model, to body members in connection with the joint (110); calculating, according to the motion posture data, a rotation angle of the at least one joint (120); and determining, according to the rotation angle of the at least one joint, a motor capacity of the part under test (130).

Provided is a method for acquiring a dynamic three-dimensional image. The method for acquiring a dynamic three-dimensional image comprises: acquiring a movement posture of a terminal device; respectively collecting a depth image and a colour image by means of a depth camera and a colour camera; according to the movement posture of the terminal device and the depth image, performing quick segmentation and matching; according to the colour image, performing exact matching on a result of the quick segmentation and matching; and if there is an overlap between the acquired current image and a photographed image, performing fusion on the overlapping area through a fusion algorithm so as to generate a dynamic three-dimensional image. The present application can realise, with respect to the currently occurring defects existing in panoramic photography and surround photography, by means of adding a depth camera to a device and combining data of a mobile phone posture sensor and a colour image sensor, a method capable of recording a scenery appearance from various directions at once so as to acquire a dynamic three-dimensional image and support storage display.

Provided is a method for preparing a defect-free DDR molecular sieve membrane. Sigma-1 molecular sieve is used as an inducing seed crystal to prepare and obtain a continuous and compact DDR molecular sieve membrane on the surface of a porous ceramic support. An ozone atmosphere or an external field assisted technology is used to remove a template in the pores of the molecular sieve membrane at a low temperature. The invention avoids the formation of intercrystal defects and cracks, an activated DDR molecular sieve membrane has a good selectivity for separating CO2, and the membrane preparation time is significantly reduced.