Abstract: The present invention discloses a combined oxygen, nitrogen and hydrogen joint determination device and method based on thermal conductivity-infrared technique. In the device, a melting and extraction system comprises a carrier gas introduction pipeline, a chamber valve, an impulse furnace and a dust filter; an analytical gas transmission system comprises a flush valve, a bypass valve, a mass flowmeter and a first switching valve; a signal detection system comprises an infrared cell, an analysis purification reagent tube and a thermal conductivity cell; and a signal analysis system comprises a controller and a processor. The present invention realizes different joint determination modes by switching different gas paths, which can meet different determination requirements of different users.

Abstract: Disclosed are a network accuracy quantification method, system, and device, an electronic device and a readable medium, which are applicable to a many-core chip. The method includes: determining a reference accuracy according to a total core resource number of the many-core chip and the number of core resources required by each network to be quantified, with the number of the core resources required by each network to be quantified being the number of the core resources which is determined after each network to be quantified is quantified; and determining a target accuracy corresponding to each network to be quantified according to the reference accuracy and the total core resource number of the many-core chip.

Abstract: The present disclosure provides the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator. 4-(Phenylethynyl) benzoic acid has a formula as C15H10O2, a molecular weight of 222.2390. The optimum concentration of 4-(Phenylethynyl) benzoic acid in the plant growth regulator is in a range of 10 ?M to 200 ?M. The plant growth regulator further contains a pesticidally acceptable carrier. The present disclosure further provides the use of 4-(Phenylethynyl) benzoic acid in regulating plant growth. In the use of 4-(Phenylethynyl) benzoic acid in preparing a plant growth regulator of the present disclosure, 4-(Phenylethynyl) benzoic acid has the ABA-like effects, and is more stable, easily available, cheaper, and environmentally friendly. Therefore, the present disclosure is suitable for large-scale popularization.

Abstract: Disclosed are a network accuracy quantification method, system, and device, an electronic device and a readable medium, which are applicable to a many-core chip. The method includes: determining a reference accuracy according to a total core resource number of the many-core chip and the number of core resources required by each network to be quantified, with the number of the core resources required by each network to be quantified being the number of the core resources which is determined after each network to be quantified is quantified; and determining a target accuracy corresponding to each network to be quantified according to the reference accuracy and the total core resource number of the many-core chip.

Abstract: A method for constructing an ALA production bacterial strain, the method enhances the activity of related enzymes promoting the synthesis of oxaloacetate and in the 5-aminolevulinic acid (ALA) production bacterial strain, or introducing exogenous related enzymes promoting the synthesis of oxaloacetate, such as phosphoenolpyruvate carboxylase or pyruvate carboxylase, and/or reducing the activity of related enzymes in the downstream metabolic pathway of succinyl coenzyme A in the bacterial strain, such as succinyl coenzyme A synthetase or succinate dehydrogenase, and/or reducing the activity of phosphoenolpyruvate carboxylated kinase and/or malic enzyme. An ALA high-yield bacterial strain constructed by utilizing the method, and method for utilizing the bacterial strain to prepare ALA.

Abstract: A method for constructing an ALA production bacterial strain, the method enhances the activity of related enzymes promoting the synthesis of oxaloacetate and in the 5-aminolevulinic acid (ALA) production bacterial strain, or introducing exogenous related enzymes promoting the synthesis of oxaloacetate, such as phosphoenolpyruvate carboxylase or pyruvate carboxylase, and/or reducing the activity of related enzymes in the downstream metabolic pathway of succinyl coenzyme A in the bacterial strain, such as succinyl coenzyme A synthetase or succinate dehydrogenase, and/or reducing the activity of phosphoenolpyruvate carboxylated kinase and/or malic enzyme. An ALA high-yield bacterial strain constructed by utilizing the method, and method for utilizing the bacterial strain to prepare ALA.