Abstract: A network switch subrack in a cabinet system is configured to bear a network switch. The network switch subrack includes an outer frame that is configured to be plugged into the cabinet. The outer frame includes a cavity sized to accommodate the network switch. The network switch subrack further includes a fastening assembly that is disposed in the outer frame and configured to fasten the network switch in the cavity in the outer frame. The network switch subrack further includes a transfer module having a first end pluggably connected to the cabinet system and a second end pluggably connected to the network switch.

Abstract: Methods for determining a self-driving technology-based resource and communications are provided. One example method includes that a server determines a first time-frequency resource and a first location of the first vehicle; determines a first area range in which the first vehicle is located; when a second vehicle exists in the first area range, and a second time-frequency resource of the second vehicle is the same as the first time-frequency resource, determines, from time-frequency resources in the first area range, a third time-frequency resource including an idle time-frequency resource; and the server sends the third time-frequency resource to the first vehicle, and the first vehicle performs laser signal transmission by using the third time-frequency resource.

Abstract: The present invention relates to a method of forming contact holes of a CMOS device and a method of making a CMOS device. Because a carbon cap layer or a carbon rich layer is formed on a etching stop layer, when etching reaches the etching stop layer with less depth, great polymer protecting the etching stop layer from etching will be formed in the etching stop layer. As such, when etching reaches the contact holes with more depth, the contact holes with less depth may be protected from over-etching until etching the contact holes with more depth is finished. Over-etching may be avoided, and meanwhile the contact holes with more depth may be fully etched to avoid from under-etching.

Abstract: The disclosure provides a power system balance optimization method based on balancing units, including: collecting power generation and consumption information of market subjects in a balancing unit, calculating a output situation of a power generation side when the system operation cost is minimum, and judging whether to carry out a power exchange between units; the balancing unit optimizes and selects an operation strategy according to market environment, and then optimizes and selects the operation strategy according to the market environment; the disclosure carries out hierarchical management through balancing units, and the system balance costs of power generation, regulation, power exchange and fully considers balance cost of power generation, regulation, power exchange and other systems of multiple entities on the power generation side, transmission side and power consumption side.

Abstract: The present invention discloses an L-arginine-glycine amidinotransferase and use thereof in the production of guanidinoacetic acid. In the present invention, through combined multi-site amino acid mutation, a technical effect of significantly improved enzyme activity of the mutant AkAGATT225Q/A258P/L278K than that of the wild-type strain is achieved, providing an application value for large-scale production of guanidinoacetic acid in industry. When the L-arginine-glycine amidinotransferase mutant constructed in the present invention is used in the production of guanidinoacetic acid, by optimizing the conversion conditions, the yield of guanidinoacetic acid is up to 21.4 g/L and the conversion rate is 90.4%, after 24 hrs of reaction in a 1 L reaction system. Compared with the production of guanidinoacetic acid with the raw enzyme, the yield is increased by 49.6%.

Abstract: The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof-of-existence data, certify the proof-of-existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockcha

Abstract: The invention provides an Escherichia coli for synthesizing L-valine, a construction method and use thereof. The Escherichia coli of the invention is designated as Escherichia coli W3110 and was deposited in China Center for Type Culture Collection (Address: Bayi Road, Wuchang District, Wuhan City, Hubei Province) under the Accession No. CCTCC M 2022293 on Mar. 18, 2022. The recombinant Escherichia coli takes Escherichia coli as a starting strain, and a transcription regulation factor is overexpressed to obtain a recombinant Escherichia coli. The recombinant Escherichia coli for synthesizing L-valine of the invention is fermented in a 5 L fermentor with trace dissolved oxygen to test strains, the yield of L-valine reaches 112 g/L, and the OD of the bacterium is 104.

Abstract: Provided is a dual recombinant viral vector system for expressing, in a cell, a polypeptide molecule which is composed of two different peptide chains and has an antigen binding activity, wherein the first chain is expressed using a first viral vector, the second chain is expressed using a second viral vector, and the first and second chains can be assembled, after being expressed in a cell, into the polypeptide molecule which has an antigen binding activity. Further provided are a dual plasmid system for the production of the dual recombinant viral vector system, a host cell containing the dual recombinant viral vector system, a pharmaceutical composition, and the use of and the method for delivering the polypeptide molecule to a subject by using the dual recombinant viral vector system.

Abstract: The invention provides a glutamate decarboxylase mutant with improved pH tolerance and use thereof in synthesis of gamma-aminobutyric acid. The mutant is obtained by mutating glutamate decarboxylase having an amino acid sequence as shown in SEQ ID NO. 3. The enzyme activity of the mutant at pH 6.5 is improved to 178% of the original enzyme (SEQ ID NO. 3). The final yield of 1000 g of substrate fed in batches in a 5L tank for 12 h is up to 688.13 g/L, which is about 52% higher than the productivity of the original glutamate decarboxylase. The final molar conversion rate can reach 98.2%. The invention not only broadens the enzyme activity of GAD under the optimum pH, but also broadens the enzyme activity of GAD under the neutral pH, and enhances the capability of the GAD to synthesize gamma-aminobutyric acid, and therefore is more suitable for industrial production.

Abstract: The present invention discloses a fabrication method and use of a ?40 mm large-size and high-contrast fiber optic image inverter, belonging to the field of manufacturing of fiber optic imaging elements. The light-absorbing glass for preparing the ?40 mm large-size and high-contrast fiber optic image inverter consists of the following components in molar percentage: SiO2 60-69.9, Al2O3 1.0-10.0, B2O3 10.1-15.0, Na2O 1.0-8.0, K2O 3.0-10.0, MgO 0.1-1.0, CaO 0.5-5.0, ZnO 0-0.1, TiO2 0-0.1, ZrO2 0.1-1.0, Fe2O3 3.0-6.5, Co2O3 0.1-0.5, V2O5 0.51-1.5 and MoO3 0.1-1.0. The fiber optic image inverter has the advantages of low crosstalk of stray light, high resolution and high contrast.

Abstract: The present invention relates to a lamp for a vehicle and a vehicle. The lamp includes a housing and a light source arranged in the housing, an opening of the housing being divisible into one or more light emitting regions to correspondingly realize a predetermined light function, wherein the at least one light emitting region is provided with a light distribution element for the light source, the light distribution element having a first light distribution portion and a second light distribution portion, the first light distribution portion being configured to cause light of the light source to leave the light emitting region within a first angular range, and the second light distribution portion being configured to cause light of the light source to leave the light emitting region within a second angular range that is different from the first angular range.

Abstract: The present disclosure discloses a strain of Acidomyces acidothermus and its application in leaching copper-containing pollutants from waste circuit boards, belonging to the technical field of bio-leaching. According to the present disclosure, a strain of A. acidothermus is separated from the sludge of a Changzhou sewage treatment plant; and the strain can normally grow under an acidic condition, and copper contained in a system can be leached out in a form of copper ions by adding the strain into waste or pollutants containing heavy metal copper, so that the metal copper in the waste or pollutants is effectively treated. The treatment process is simple, the requirements for the environment and the technology are low, and the treated waste liquid does not contain high-concentration chemical reagents, which facilitates subsequent waste liquid treatment; and therefore, the A. acidothermus is suitable for industrial application.

Abstract: A device assembling system includes a management apparatus, a material apparatus, and an execution apparatus. The management apparatus is communicatively connected to the material apparatus and the execution apparatus, and the material apparatus and the execution apparatus are installed into an overall structure. The management apparatus is configured to obtain a maintenance task of a maintenance device. The maintenance task includes an operation type and an operation object. The management apparatus parses the maintenance task into a first control instruction and a second control instruction. The material apparatus receives the first control instruction, and searches for a to-be-assembled part according to the first control instruction, that is, the material apparatus may determine a position of the to-be-assembled part.

Abstract: The present disclosure provides a recombinant nucleic acid of Escherichia coli, a recombinant E. coli, a culturing method thereof, and a method for biosynthesizing L-threonine thereby, and relates to the technical field of bioengineering. The recombinant nucleic acid of E. coli of the present disclosure, including the gene encoding phosphoenolpyruvate carboxykinase (pck), the gene encoding pyruvate carboxylase (pyc) and the gene encoding threonine operon, is transformed into E. coli to obtain a recombinant E. coli LMT4 strain that takes glucose as a substrate. Using the LMT4 for fermentative production may significantly improve the L-threonine yield and glucose conversion rate, laying a foundation for the industrial production of L-threonine.

Abstract: The present disclosure provides a Bacillus subtilis strain, a recombinant B. subtilis strain and use thereof, belongs to the technical field of microbial fermentation. B. subtilis strain RF1-6 provided by the present disclosure is a mutant strain with the highest riboflavin yield screened by gene modification and mutagenesis using a high riboflavin-producing strain RF1 as a starting strain, deposited at China Center for Type Culture Collection (CCTCC) under accession number M 2022565. Riboflavin yield can be increased by 22.8% compared with that of the high riboflavin-producing strain RF1.

Abstract: The present invention discloses a glass with high refractive index for fiber optic imaging elements with medium-expansion and fabrication method therefor, the glass comprising the following components in percentage by weight: SiO2 5-9%, Al2O3 0-1%, B2O3 23-28%, CaO 0-3%, BaO 6-12%, La2O3 30-34%, Nb2O5 4-8%, Ta2O5 0-1%, Y2O3 0-1%, ZnO 4-9%, TiO2 4-8%, ZrO2 4-6%, SnO2 0-1%. The present invention further provides a fabrication method for the glass with a high refractive index, comprising: putting raw materials quartz sand, aluminum hydroxide, boric acid or boric anhydride, calcium carbonate, barium carbonate or barium nitrate, lanthanum oxide, niobium oxide, tantalum oxide, yttrium oxide, zinc oxide, titanium dioxide, zirconium oxide and stannic oxide, etc. into a platinum crucible according to the requirement of dosing, melting at a high temperature, cooling and fining, leaking and casting to form a glass rod, and then annealing, cooling and chilling the molded glass rod.

Abstract: A pharmaceutical composition containing cariprazine, a preparation method and an application thereof are provided. The pharmaceutical composition contains cariprazine pamoate solid particles. A particle size of the cariprazine solid particles has a Dv(10) less than or equal to 30 microns, a Dv(50) less than or equal to 50 microns, and a Dv(90) less than or equal to 100 microns. When being used, the pharmaceutical composition containing cariprazine is an aqueous suspension and, the concentration of the free base of cariprazine is moderate. A long-term effect can be achieved upon injection of a certain administration volume of the pharmaceutical composition, thereby reducing the frequency of medication while increasing patient medication compliance. Furthermore, the pharmaceutical composition has a high bioavailability and has promising marketing prospects.

Abstract: A connector includes a first pin which is configured to indicate an in-service signal, a second pin which is configured to indicate a power supply signal, a third pin which is configured to indicate a clock signal, and a fourth pin; the first pin which is configured to indicate a PCIe port signal; the first pin, the second pin, the third pin, and the fourth pin have an equal length; and the connector includes a first face and a second face, a limiting structure is arranged on the first face, the limiting structure is a boss or a groove, and the first pin is located in the middle of the first face.

Abstract: A pharmaceutically acceptable salt of cariprazine, a preparation method therefor, a pharmaceutical composition containing same, and the use thereof are provided. The pharmaceutically acceptable salt of cariprazine is a salt formed from the free base of cariprazine and an organic acid having six or more carbon atoms, and has relatively good solubility and stability.

Abstract: A fiber optic imaging element includes medium-expansion and a fabrication method including: (1) matching a core glass rod with a cladding glass tube to perform mono fiber drawing; (2) arranging the mono fibers into a mono fiber bundle rod, and then drawing the mono fiber bundle rod into a multi fiber; (3) arranging the multi fiber into a multi fiber bundle rod, and then drawing the multi fiber bundle rod into a multi-multi fiber; (4) cutting the multi-multi fiber, and then arranging the multi-multi fiber into a fiber assembly buddle, then putting the fiber assembly buddle into a mold of heat press fusion process, and performing the heat press fusion process to prepare a block of the fiber optic imaging element with medium-expansion; and (5) edged rounding, cutting and slicing, face grinding and polishing the prepared medium-expansion block into a billet.