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51results about How to "Cannot limit the scope of protection" patented technology

Aluminum alloy refining agent and preparation method thereof

InactiveCN109207768AImprove degassing and slag removal abilityReduce hydrogen contentSlagHydrogen content
The invention discloses an aluminum alloy refining agent and a preparation method thereof, and belongs to the technical field of aluminum alloy processing. The aluminum alloy refining agent comprisesthe following components of, by weight, 30-50 parts of NaCl, 15-30 parts of CaS, 6-14 parts of CaSO4, 5-10 parts of MgF2, 3-11 parts of Na3AlF6, 4-8 parts of Na2SiF6, 0.5-1.0 part of C2Cl6, 15-25 parts of graphite, 20-30 parts of plant ash, 2-6 parts of DyF3 and 2-8 parts of CeF3. According to the aluminum alloy refining agent and a preparation method thereof, the raw materials of the refining agent contain the graphite, the plant ash and a rare-earth compound, the degassing and slag removing capacity of the refining agent can be improved, the hydrogen content of the aluminum alloy melt is low, and the slag removal rate is high; and the aluminum alloy preparation method is simple, good in degassing and slag removing effects and suitable for industrial production.
Owner:王再青

Contention adjusting method and device for use in wireless local area network and system

The embodiment of the invention discloses a contention adjusting method and device for use in a wireless local area network and a system. The method comprises the following steps: acquiring an air interface occupation time ratio of a station which is in a service proceeding state; and adjusting an uplink data transmission threshold of the station according to the air interface occupation time ratio of the station, wherein the air interface occupation time ratio of the station is a ratio of air interface occupation time of the station to air interface time, and the air interface occupation time of the station is a ratio of a volume of data transmitted by the station to an air interface data transmission rate of the station within the air interface time. Through adoption of the contention adjusting method and device and the system, excessive occupation of stations with weak demands by stations with strong demands can be avoided.
Owner:HUAWEI TECH CO LTD

Construction method of reference protein database, storage medium and electronic equipment

PendingCN113393903AOvercome the difficulty of obtaining nucleic acid for sequencingHigh sensitivityProteomicsGenomicsProtein proteinProtein abundance
The invention belongs to the technical field of biology, and particularly relates to a construction method of a reference protein database, which comprises the following steps: S1, acquiring SNP site information in a public database, and screening SNP sites to obtain an SNP site list causing coded amino acid change; s2, screening out SNP sites of protein with high expression quantity from the SNP site list according to the protein abundance of the sample; and s3, generating heritable variation peptides corresponding to the screened SNP site list, adding the heritable variation peptides into a reference protein sequence of a public protein database to generate a sample-based reference protein database, and the reference protein database comprises the heritable variation peptides. The reference protein database is based on samples, so that errors caused by mistakenly removing the protein are avoided, the effective data integrity is improved, and high redundancy caused by excessive heritable variation information is avoided.
Owner:上海君谊生物科技有限公司

High-efficiency refining agent for aluminum alloy and preparation method of high-efficiency refining agent

InactiveCN109207771AImprove degassing and slag removal abilityHigh slag removal rateRare earthHydrogen content
The invention discloses a high-efficiency refining agent for an aluminum alloy and a preparation method of the high-efficiency refining agent and belongs to the technical field of aluminum alloy processing. The refining agent comprises, by weight, 40-60 parts of NaCl, 20-40 parts of KCl, 25-35 parts of KNO3, 12-18 parts of MgS, 6-14 parts of CaSO4, 8-16 parts of AlF3, 4-8 parts of MgF2, 3-11 partsof Na3AlF6, 4-8 parts of Na2SiF6, 0.5-1.0 part of C2Cl6, 15-25 parts of graphite, 10-20 parts of carbon powder, 2-6 parts of DyF3 and 2-8 parts of CeF3. The raw materials of the refining agent comprise graphite, carbon powder and rare earth compounds, so that the degassing and deslagging capability of the refining agent can be improved, and the aluminum alloy melt has low hydrogen content and high deslagging rate.
Owner:王再青

Aluminum alloy refining agent containing rare earth element and preparation method thereof

InactiveCN109207769AImprove degassing and slag removal abilityHigh slag removal rateRare-earth elementSlag
The invention discloses an aluminum alloy refining agent containing a rare earth element and a preparation method thereof, and belongs to the technical field of aluminum alloy processing. The aluminumalloy refining agent containing the rare earth element comprises the following components of, by weight, 30-50 parts of NaCl, 15-30 parts of CaS, 6-14 parts of CaSO4, 5-10 parts of MgF2, 3-11 parts of Na3AlF6, 4-8 parts of Na2SiF6, 0.5-1.0 part of C2Cl6, 15-25 parts of graphite, 20-30 parts of plant ash, 2-3 parts of ytterbium, 0.5-1.5 part of dysprosium and 1-3 parts of cerium. According to thealuminum alloy refining agent containing the rare earth element and the preparation method thereof, the raw materials of the refining agent contain the graphite, the plant ash and a rare-earth compound, the degassing and slag removing capacity of the refining agent can be improved, the hydrogen content of the aluminum alloy melt is low, and the slag removal rate is high; and the aluminum alloy preparation method is simple, good in degassing and slag removing effects and suitable for industrial production.
Owner:王再青

Trans-impedance amplifier array, light receiving device and laser radar receiver

The invention discloses a trans-impedance amplifier array, a light receiving device and a laser radar receiver, which can be applied to the field of automatic driving or intelligent driving. The light receiving device can comprise the trans-impedance amplifier array and a photoelectric sensor array, the trans-impedance amplifier array and the photoelectric sensor array are arranged in a stacked manner, and the trans-impedance amplifiers and the photoelectric sensors are connected in a one-to-one correspondence manner through the solder balls, so that the integration level of the light receiving device is improved, and the influence on the performance of the laser radar is reduced.
Owner:ZVISION TECH CO LTD
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