Abstract: The present invention provides light-emitting devices with improved quantum efficiency. The light emitting diode structure comprising: a p-doped layer an n-doped layer; and a multiple quantum well structure sandwiched between the p-doped layer and n-doped layer, wherein the multiple quantum well structure comprising a quantum well disposed between n-doped barrier layers.

Abstract: The present disclosure discloses a method for preparation of derivatives of gram-positive bacteria surface capsular polysaccharide, and belongs to the field of carbohydrate chemistry. The present disclosure takes glucose as a glycosyl donor to obtain a target ?-glucosidic bond, then successfully synthesizes a disaccharide building block through a method of redox of a glucose C-2 site, and then takes the disaccharide building block as a repeat unit to synthesize a target oligosaccharide structure such as a derivative [?3)-?-D-Manp-(1?4)-?-D-Rhap-(1?]5-Linker of gram-positive bacteria cell wall capsular polysaccharide. A reduction end of decose is linked with a linker to be linked with a protein to make glycoconjugates for immunological studies. The method provided by the present disclosure is simple, time-saving, labor-saving and low-cost, and the resultant derivatives of the gram-positive bacteria surface capsular polysaccharide may be used for development and preparation of medicine related to autism.

Abstract: The disclosure discloses a chemical synthesis method of oligosaccharides of a Pseudomonas aeruginosa serotype O11 O-antigen, and belongs to the field of chemistry. The disclosure includes constructing an O-antigen trisaccharide by using a D-glucose building block, an L-fucosamine building block and a D-fucosamine building block; wherein the D-glucose building block or the L-fucosamine building block is linked with the D-fucosamine building block through a 1,2-?-cis-glycosidic bond, the D-glucose building block is linked with the L-fucosamine building block through a 1,2-?-trans-glycosidic bond, and the construction of the 1,2-?-cis-glycosidic bond is conducted in a mixed solvent; and the mixed solvent includes two or more of dichloromethane, diethyl ether and thiophene.

Abstract: The present invention provides light-emitting devices with improved quantum efficiency. The light emitting diode structure comprising: a p-doped layer an n-doped layer; and a multiple quantum well structure sandwiched between the p-doped layer and n-doped layer, wherein the multiple quantum well structure comprising a quantum well disposed between n-doped barrier layers.

Abstract: The present disclosure discloses the chemical synthesis method of the Plesiomonas shigelloides serotype O51 O-antigen oligosaccharide, belonging to the field of chemistry. Source-abundant D-glucose, L-fucose, D-glucosamine and the like are used as raw materials to prepare three glycosylation building blocks, the synthetic route composed of 11 reaction modules is designed, and through the optimization of protecting group and the optimization of the time of introducing functional group, the preparation of the target oligosaccharide chain is successfully achieved. The oligosaccharide chain prepared in the present disclosure has the advantages of cheap and easy-to-get raw materials, and simple and easy-to-repeat preparation method. The present disclosure will have good application prospects in the aspects of development of new drugs and vaccines of Plesiomonas shigelloides, and the like.

Abstract: The present invention provides light-emitting devices with improved quantum efficiency. The light emitting diode structure comprising: a p-doped layer, an n-doped layer; and a multiple quantum well structure sandwiched between the p-doped layer and n-doped layer, wherein the multiple quantum well structure comprising a quantum well disposed between n-doped barrier layers.

Abstract: Disclosed is synthesis of an O-Antigen oligosaccharide compound of Helicobacter pylori serotype O2, belonging to the field of organic synthesis. The disclosure obtains O-antigen disaccharide to tetracosasaccharide of Helicobacter pylori serotype O2 by chemical synthesis. A chemical synthesis method which is quite conducive to production of a glucose-?-glucosidic bond is developed in the disclosure by a protectant strategy, temperature effect, solvent effect, and additive effect. The method is applied in synthesis of an O-antigen oligosaccharide compound of Helicobacter pylori serotype O2 assembled with an amino linking arm. A saccharide conjugate can be prepared from the synthesized O-antigen oligosaccharide compound of Helicobacter pylori serotype O2 assembled with an amino linking arm together with a carrier protein for immunology researches, playing an important role in preventing and treating Helicobacter pylori.

Abstract: The disclosure discloses a method for detecting a human soluble asialoglycoprotein receptor, and belongs to the field of immunological detection. The disclosure provides an economical, rapid, accurate and highly practical ELISA method for detecting a human sASGPR. Based on the specific recognition between a specific ligand of ASGPR and ASGPR, the method selects galactosylated human serum albumin (GSA) as the specific ligand of ASGPR. GSA is prepared from human serum albumin, and has the advantages of cheap price, easy operation, easy storage and the like, and the limit of detection of the method is suitable for the detection of sASGPR in human serum samples. The method can be carried out in ordinary laboratories without using special, large-scale instruments and equipment. The method has the advantages of high specificity, good stability, simple and convenient operation, low cost and the like, and provides a certain reference value for clinical liver function evaluation.

Abstract: An Ethernet connection method and an Ethernet device thereof are provided. The Ethernet connection method and the Ethernet device can transmit data with Error Correction Code (ECC) even with only one twisted pair or two twisted pairs when the Ethernet wire cannot transmit with the full four twisted pairs.

Abstract: The disclosure discloses a preparation method of outer core octasaccharide of Helicobacter pylori lipopolysaccharide, and belongs to the field of carbohydrate chemistry. The structure of the outer core octasaccharide of Helicobacter pylori is (?-D-Glc-(1-3)-?-D-Glc-(1-4)-?-D-Gal-(1-7)-D-?-D-Hep[?-D-Glc-(1-6)-?-D-Glc-(1-6)-?-D-Glc-(1-2)-D-?-D-Hep]-Linker. The structure consists of three monosaccharides: glucose, galactose and heptose. It contains five ?-glycosidic bonds of glucose, one ?-glycosidic bond of galactose and two ?-glycosidic bonds of heptose. The disclosure prepares the octasaccharide by the synergistic action of remote neighboring group participation effect, solvent effect, temperature effect, additives and leaving groups. The reducing end of the octasaccharide may also be linked with a linker for future attachment to the protein to form a glycoconjugate for immunological studies.

Abstract: A circuit module includes a plurality of electronic components and a single-layer conductive package substrate. The single-layer conductive package substrate is adapted to physically support and electrically interconnect the electronic components. The substrate has a peripheral portion and an interior portion. The peripheral portion includes a plurality of peripheral contact pads coupled to corresponding electronic components. The interior portion includes a plurality of floating contact pads that are electrically isolated from the peripheral contact pads and are coupled to corresponding electronic components.

Abstract: A fault detection method and device is disclosed. The method includes obtaining, by an optical transport network (OTN) device, a first OTN frame. The first OTN frame includes a plurality of payload areas. Each payload area includes payload check information and payload data. The method further includes performing fault detection, according to the payload check information, of payload data of a payload area in which the payload check information is located. The first OTN frame is divided into a plurality of payload areas, and corresponding payload check information is carried in each payload area.

Abstract: Embodiments of the present disclosure provide a data transmission method and a device, and the method includes: determining synchronization header indication information indicating a frame header location of a first code stream, where the first code stream is obtained by encoding CPRI service data; decoding the first code stream to obtain a second code stream, where the first code stream is a 10B code stream, and the second code stream is an 8B code stream, or the first code stream is a 66B code stream, and the second code stream is a 64B code stream; inserting frame header indication information indicating a frame header location of the second code stream into the second code stream according to the synchronization header indication information; and mapping the second code stream and the frame header indication information into an OPU in an ODU frame.

Abstract: An embodiment of an apparatus includes first and second core regions, first and second conductors, and an isolation region. The first core region has a first permeability, and the first conductor is disposed in the first core region. The second core region has a second permeability, and the second conductor is disposed in the second core region. And the isolation region is disposed between the first and second core regions, and has a third permeability that is significantly different than the first and second permeabilities. For example, the first and second conductors may be windings of respective first and second inductors, and the isolation region, which may be attached to, or integral with, the first and second core regions, may reduce the amount of magnetic coupling between the inductors to a level that is negligible, such that the inductors may be used in applications that call for magnetically uncoupled inductors.

Abstract: The present disclosure discloses an integrated nano system for liver-targeting co-delivery of genes/drugs and a preparation method, belonging to the field of biomedicines. In the disclosure, a plurality of functions are integrated in a carrier having good biocompatibility and safety, a nucleic acid/drug-loading copolymer portion having a pH-stimulating response function is formed by poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA) grafted with poly(3-azido-2-hydroxypropylmethacrylate) (PGMA-N3), and a fluorescence-based imaging component Rhodamine B (RhB) and galactose are used as targeting ligands. The drug delivery system provided by the present disclosure is safe, is capable of taking a synergistic effect of gene/drug therapy, and is expected to play a great role in clinical application.

Abstract: A system, power supplies, controller and method for enhanced phase current sharing are disclosed. For example, a power supply for enhanced phase current sharing is disclosed, which includes a plurality of power modules, a communication bus coupled to an input of each power module of the plurality power modules, and an output voltage node coupled to a first side of an inductor of each power module of the plurality of power modules, wherein each power module of the plurality of power modules includes a digital controller coupled to the input of the power module, and an RC circuit enabled to generate a feedback signal, coupled to a second side of the inductor and the output voltage node. In some implementations, the power supply is at least part of a power management integrated circuit (PMIC) or at least part of a power supply formed on a semiconductor IC, wafer, chip or die.

Abstract: Disclosed herein is a power converter with low step down conversion ratio with improved power conversion efficiency. The power converter includes a first inductor to receive the input voltage, and a second inductor to supply the output voltage to a load. The first inductor and the second inductor are electromagnetically coupled to each other. The power converter further includes a first switch coupled between the first inductor and the second inductor. The first switch is switched according to a pulse having a frequency corresponding to a resonant frequency of (i) a series inductance between the first inductor and the second inductor and (ii) a parallel capacitance across the first switch. The power converter further includes a second switch coupled to the first switch and the second inductor to supply a reference voltage to the second inductor according to another pulse having the frequency.

Abstract: The present disclosure discloses the chemical synthesis method of the Plesiomonas shigelloides serotype O51 O-antigen oligosaccharide, belonging to the field of chemistry. Source-abundant D-glucose, L-fucose, D-glucosamine and the like are used as raw materials to prepare three glycosylation building blocks, the synthetic route composed of 11 reaction modules is designed, and through the optimization of protecting group and the optimization of the time of introducing functional group, the preparation of the target oligosaccharide chain is successfully achieved. The oligosaccharide chain prepared in the present disclosure has the advantages of cheap and easy-to-get raw materials, and simple and easy-to-repeat preparation method. The present disclosure will have good application prospects in the aspects of development of new drugs and vaccines of Plesiomonas shigelloides, and the like.

Abstract: The present disclosure discloses preparation and application of a novel multifunctional nanocomposite material with new photosensitizer, and belongs to the technical field of photodynamic therapy and the field of biomedicine. The photosensitizer multifunctional nanocomposite material provided by the present disclosure is prepared by self-assembly of cercosporin and an acid-sensitive copolymer multifunctional material with liver tumor cell targeting ability and traceability, wherein the acid-sensitive copolymer multifunctional material can be a copolymer of poly(N,N-dimethylaminoethyl methacrylate) and poly-3-azido-2-hydroxypropyl methacrylate covalently linked by galactose-modified rhodamine B.

Abstract: The disclosure discloses a preparation method of outer core octasaccharide of Helicobacter pylori lipopolysaccharide, and belongs to the field of carbohydrate chemistry. The structure of the outer core octasaccharide of Helicobacter pylori is (?-D-Glc-(1-3)-?-D-Glc-(1-4)-?-D-Gal-(1-7)-D-?-D-Hep[?-D-Glc-(1-6)-?-D-Glc-(1-6)-?-D-Glc-(1-2)-D-?-D-Hep]-Linker. The structure consists of three monosaccharides: glucose, galactose and heptose. It contains five ?-glycosidic bonds of glucose, one ?-glycosidic bond of galactose and two ?-glycosidic bonds of heptose. The disclosure prepares the octasaccharide by the synergistic action of remote neighboring group participation effect, solvent effect, temperature effect, additives and leaving groups. The reducing end of the octasaccharide may also be linked with a linker for future attachment to the protein to form a glycoconjugate for immunological studies.