5results about How to "Enhanced advantage" patented technology

The application discloses a method for producing lysine by immobilized continuous fermentation, and the method comprises the following steps: soaking a multi-hydroxy flexible polyester fiber carrier in soluble pectin, and drying the carrier by a dry heat method to obtain an immobilized carrier; inoculating seed liquid of cultured Corynebacterium glutamicum into a high-oxygen-bio-reactor containing the immobilized carrier and a fermentation medium, and performing batch-fed fermentation for a certain batch to immobilize the Corynebacterium glutamicum on the immobilized carrier, so that the Corynebacterium glutamicum can stably produce lysine; and switching to a mode for continuously producing lysine. The method for producing lysine by the immobilized Corynebacterium glutamicum fermentation can be stably operated for more than 15 days, and compared with free fermentation, the lysine production rate is increased by nearly 35%, and the sugar-acid conversion rate is increased by nearly 4 percentage points.

The invention relates to a new method of determining the presence, absence or characteristics of an analyte. The analyte is coupled to a membrane. The invention also relates to nucleic acid sequencing.

The utility model relates to the technical field of semiconductor manufacturing equipment, concretely is a kind of low-cost stainless steel semiconductor heating disc structure, including cover, pedestal, electric heater and shaft column, the side of pedestal and cover connection is provided with annular groove, cover is embedded in annular groove, and cover and pedestal are connected by the welding bead of outer circumferential annular and the electron beam welding connection of several welding spots inside array.It is adopted that the low-cost stainless steel semiconductor heating disc structure uses electron beam welding, avoids the damage of high temperature to electric heater insulating medium, improves heating disc reliability and service life;At the same time, electron beam welding cost is lower, can shorten production cycle, improve production efficiency;Its unique welding structure, such as annular groove cooperation outer circumferential annular welding bead and inside array welding spot, strengthens the connection strength and overall stability;Reasonable welding spot distribution ensures heating uniformity, and the cylindrical protruding design at welding spot improves welding precision.

This invention relates to an optimal DoS attack scheduling method based on deep learning algorithms, comprising: establishing a mathematical model of a distributed cyber-physical system; obtaining local state estimation information through Kalman filtering and transmitting it to a remote estimator via a wireless channel; establishing an attack-channel coupling model based on the signal-to-interference-plus-noise ratio (SINR), whereby the attacker injects attack energy into the wireless channel to reduce the probability of successful packet reception, and obtains the remote estimation error covariance as the system state by eavesdropping on confirmation character information; constructing a Markov decision process model that maximizes the discounted cumulative reward, using the error covariance as the state, attack energy allocation as the action, and the trade-off between estimation error and attack energy as the immediate reward; solving the Markov decision process model using a deep Q-network, approximating the optimal Q-function through a neural network, and outputting an optimal attack energy scheduling strategy that satisfies stability constraints. This invention improves the efficiency and effectiveness of DoS attacks, enhancing the attacker's advantage in network warfare.

The invention provides a resin material, a carbon material and a preparation method and application thereof, and relates to the technical field of battery negative electrode materials, the resin material comprises polyhedral resin particles, the polyhedral resin particles comprise a first resin plane, and the first resin plane is a polygonal resin plane. Compared with a spherical material, the filling and bonding properties are greatly improved. The polyhedral carbon material is obtained from the polyhedral resin material, and the polyhedral silicon-carbon composite material is obtained on the basis of the polyhedral carbon material. The spherical silicon-carbon negative electrode material shows relatively good cycling stability in lithium battery negative electrode application. The polyhedral material overcomes the defects of a block material and a spherical material, integrates the advantages of the block material and the spherical material, and provides an ideal silicon-carbon composite material. The polyhedral silicon-carbon composite material solves the technical bottlenecks of high interface impedance and weak binding power caused by limited contact area of a spherical silicon-carbon negative electrode material in the prior art, and unstable electrode structure caused by high brittleness and difficulty in uniform dispersion of a block material.