Abstract: A compact card edge connector for transmitting power and high-speed signals. The connector has a housing with a first portion holding first conductors and a second portion holding second conductors. Mounting ends of the first conductors extend out of the first portion and are configured to mount to a printed circuit board for power transmission. Mounting ends of the second conductors extend out of the second portion and are configured to mount with cables for signal transmission. The mounting ends of the second conductors are recessed from respective intermediate portions. The housing has a bottom member with projections abutting the mounting ends of first-type second conductors, and a lossy member electrically coupling second-type second conductors. Such a configuration meets signal integrity requirements in connectors designed for 32 Gbps and 64 Gbps and beyond, while conforming to a standard that constrains mating and mounting interfaces.

Abstract: A composite polyvinyl alcohol (PVA) preservative film, a preparation method and an application thereof are provided. The film includes PVA of 9-12 parts, modified silicon dioxide nanoparticles of 2-5 parts, antimicrobial of 0.3-2 parts and deionized water of 100 parts. Fruits and vegetables sensitive to sunlight have lower requirements for illumination while preserving. With PVA as matrix and silicon dioxide (SiO2) nanoparticles as modified materials, composite PVA is obtained by controlling a particle size of SiO2 and modifying its surface. The composite PVA preservative film takes advantages of different refractive indexes between PVA and SiO2 and controlling the particle size of SiO2, thereby having a low luminous transmittance. The preservative film has an effect of light-proof on fruits and vegetables suitable for light-proof storage, and improves its gas transmission and water resistance because of adding SiO2, thereby facilitating packaging preservation of the fruits and vegetables.

Abstract: The present invention relates to a transdermal photocuring forming hydrogel with biological activity. The hydrogel can release recombinant collagen with biological activity, the recombinant collagen includes a sequence as shown in SEQ ID No. 1, an amino acid sequence of the recombinant collagen includes N basic repetitive units, and each basic repetitive unit includes n1 of the following characteristic amino acid sequences: “G-Xaa1-Xaa2-G-E-Xaa3”; the 3? end and the 5? end of the basic repetitive unit are connected to form the above characteristic amino acid sequence. The recombinant collagen provided by the present invention has relatively obvious integrin binding activity, and has the effects of promoting cell adhesion, proliferation and differentiation. The hydrogel of the present invention has good biocompatibility and stable quality, which can be cured and formed in situ in a transdermal photo-crosslinking manner after injection, with simple, convenient and controllable operation.

Abstract: The present invention relates to a transdermal photocuring forming hydrogel with biological activity. The hydrogel can release recombinant collagen with biological activity, the recombinant collagen includes a sequence as shown in SEQ ID No. 1, an amino acid sequence of the recombinant collagen includes N basic repetitive units, and each basic repetitive unit includes n1 of the following characteristic amino acid sequences: “G-Xaa1-Xaa2-G-E-Xaa3”; the 3? end and the 5? end of the basic repetitive unit are connected to form the above characteristic amino acid sequence. The recombinant collagen provided by the present invention has relatively obvious integrin binding activity, and has the effects of promoting cell adhesion, proliferation and differentiation. The hydrogel of the present invention has good biocompatibility and stable quality, which can be cured and formed in situ in a transdermal photo-crosslinking manner after injection, with simple, convenient and controllable operation.

Abstract: Disclosed are a molecule detection unit, a chip and a preparation method. The molecule detection unit includes a single-hole liquid storage cavity, a liquid resistance flow channel, a buffer flow channel, a sensing electrode, a substrate, a first structural layer, a second structural layer and a sample flow channel. The first structural layer is arranged on the top of the substrate; the single-hole liquid storage cavity and the buffer flow channel are arranged in the first structural layer and are independent of each other; the liquid resistance flow channel is arranged in the first structural layer, and two ends of the liquid resistance flow channel are respectively communicated with the single-hole liquid storage cavity and the buffer flow channel; the second structural layer is arranged on the top of the first structural layer and covers the top of the buffer flow channel.

Abstract: The present application discloses a pore array layered structure, a chip device, a nanopore sequencing device, a membrane forming method, and use thereof. The pore array layered structure is adapted for forming a membrane-forming space with a substrate, and the membrane-forming space is adapted to form a membrane layer. The pore array layered structure includes: a plurality of pore units arranged in an array, the pore units penetrating through the pore array layered structure and each including a first containing cavity and a second containing cavity communicated in an axial direction, first containing cavities are connected with the substrate, and at least one of the first containing cavities is communicated with other first containing cavities.

Abstract: A composite polyvinyl alcohol (PVA) preservative film, a preparation method and an application thereof are provided. The film includes PVA of 9-12 parts, modified silicon dioxide nanoparticles of 2-5 parts, antimicrobial of 0.3-2 parts and deionized water of 100 parts. Fruits and vegetables sensitive to sunlight have lower requirements for illumination while preserving. With PVA as matrix and silicon dioxide (SiO2) nanoparticles as modified materials, composite PVA is obtained by controlling a particle size of SiO2 and modifying its surface. The composite PVA preservative film takes advantages of different refractive indexes between PVA and SiO2 and controlling the particle size of SiO2, thereby having a low luminous transmittance. The preservative film has an effect of light-proof on fruits and vegetables suitable for light-proof storage, and improves its gas transmission and water resistance because of adding SiO2, thereby facilitating packaging preservation of the fruits and vegetables.

Abstract: An auxiliary method for graphic home improvement design includes the following steps: (1) acquiring the rendered image as the graphic home improvement background image, and at the same time acquire camera parameters and depth information of the rendered image; (2) constructing a transform matrix between the projection plane coordinate system and the world coordinate system according to the camera parameters, and construct a three-dimensional model corresponding to the plane home improvement background image according to the transform matrix; (3) selecting the target position of the home improvement material on the graphic home improvement background map, place the home improvement material at the target position according to the three-dimensional space constraint conditions corresponding to the type of home improvement material, and at the same time transform the home improvement material from the physical size to the projected size according to the target position and depth information, so as to realize the

Abstract: An electrical connector comprises a housing and a terminal module. The housing has a top portion, a bottom portion and two side portions connecting the top portion and the bottom portion. The top portion, the bottom portion and the two side portions form an accommodating chamber and the terminal module is accommodated in the accommodating chamber. The two side portions have positioning posts preventing horizontal displacement of the housing relative to the terminal module, and the top portion and the bottom portion prevent vertical displacement of the housing relative to the terminal module. Methods of assembling the electrical connector are also provided.

Abstract: An electrical connector comprises a housing and a terminal module. The housing has a top portion, a bottom portion and two side portions connecting the top portion and the bottom portion. The top portion, the bottom portion and the two side portions form an accommodating chamber and the terminal module is accommodated in the accommodating chamber. The two side portions have positioning posts preventing horizontal displacement of the housing relative to the terminal module, and the top portion and the bottom portion prevent vertical displacement of the housing relative to the terminal module. Methods of assembling the electrical connector are also provided.

Abstract: The present invention relates to polymorphic forms of the compound of Formula I (i.e., ethyl 2-cyano-3,12-dioxokana-1,9(11)-dien-28-oate (CDDO ethyl ester)) and methods of using them for treating a variety of disease states such as cancer and conditions associated with inflammation.

Abstract: The present invention relates to polymorphic forms of the compound of Formula I (i.e., ethyl 2-cyano-3,12-dioxoIeana-1,9(11)-dien-28-oate (CDDO ethyl ester)) and methods of using them for treating a variety of disease states such as cancer and condisitons associated with inflammation.

Abstract: The invention involves methods and materials for detecting a mutation in the genome of an organism. Specifically, the invention provides compositions of oligonucleotides and diagnostic kits that can be used to amplify nucleic acid sequences such that if heterologous amplified fragments are present, then stable nucleic acid branching structures are formed and detected from a cell lysate mixture containing the amplified nucleic acid. The formation of stable nucleic acid branching structures is particularly useful for providing a mechanism to detect heterologous alleles verses homozygous alleles since homozygous amplified products do not form stable nucleic acid branching structures. In addition, the invention provides methods of detecting heterologous Factor V alleles as well as homozygous wild-type and homozygous mutant Factor V alleles.