摘要:
The present invention discloses a method of improving the fermentation yield of polyunsaturated fatty acids, in which Schizochytrium limacinum is used as production strain to produce polyunsaturated fatty acids (PUFA), and glycine betaine or trehalose is added to the fermentation medium. In the present invention, after Schizochytrium limacinum fermentation system is treated with exogenous glycine betaine, the yield of PUFA produced by fermentation with Schizochytrium limacinum can be greatly improved. The present invention significantly improves the yield of PUFA produced by microorganism, reduces the cost without harming the environment, and saves manpower and material resources by simple and effective regulation of fermentation, and thus the method is simple, convenient and cost-effective.
摘要:
An allocation method comprises: partitioning moderate memory into a plurality of physical memory pages having predetermined page size according to the predetermined page size; scanning the moderate memory using the predetermined page size and recording the physical address and damage degree of each physical memory page; obtaining the allocation information of the physical memory pages when a memory request is received and allocating physical memory to the request based on the recorded physical address and damage degree of each physical memory page and the obtained allocation information. A moderate memory is scanned and the physical address and damage degree of each physical memory page are recorded, then the physical memory is allocated based on the recorded physical address and damage degree of each physical memory page and the obtained allocation information.
摘要:
Compounds and related methods for selective inhibition of neuronal nitric oxide synthase over inducible and endothelial isoforms, such compounds as can provide reduced cationic character and enhanced bioavailability.
摘要:
Methods for clustering of multi-dimensional data allow unsupervised grouping of multi-dimensional data points into clusters having like characteristics. The methods may be usefully applied to extracellular action potentials (neuronal spikes) measured from the brain, whereby spike data may be grouped in accordance with dimensions such as spike period, spike shape, etc., to assist in identification and location of individual neurons and/or regions of the brain.
摘要:
A method for managing blocks in a flash memory is provided, which includes dynamic and static block managing methods. In the dynamic block managing method, a blank block is selected as a swap block for write operation. During each write operation, new data and/or original data in an object block to be operated are written into the swap block, and the object block is erased. Then, a logical address of the object block is changed to be a logical address of the swap block, so that the object block served as the swap block for a next write operation. In the static block managing method, a variable seed parameter is set. Different values of the seed parameter are each associated with a logical address of a respective flash memory block. When the value of the seed parameter varies, data in the flash memory block and the swap block associated to the value of the seed parameter are exchanged, so that the flash memory block associated to the value of the seed parameter becomes the swap block for the next write operation.
摘要:
The present disclosure provides a method for preparing polylactic acid and its products using a twin-screw extruder, comprising the step of mixing carbon dioxide adducts of carbene and lactide, and obtaining polylactic acid and its products via reactive extrusion using a twin-screw extruder. Some of the carbon dioxide adducts or carbene have the following general formula:
摘要:
The present invention discloses a method for indicating a modulation mode in HSDPA, comprising the following steps: a NodeB receiving capability information reported by a terminal, if determining that the terminal supports 64QAM modulation mode, determining a transmission block size, a modulation mode and code channel resource to be indicated based on an capability constraint condition and the capability information, and if the determined modulation mode is the same as a basic modulation mode satisfying requirement of the transmission block size, setting modulation mode information of a HS-SCCH as 0, otherwise setting the modulation mode information of the HS-SCCH as 1, and then sending the HS-SCCH to the terminal. Application of the present invention is compatible with a UE device which supports or does not support 64QAM high order modulation, without changing the current frame structure of the HS-SCCH, thereby achieving functional support of the 64QAM modulation mode.
摘要:
The methods and apparatuses detect a color of each of a plurality of pixels within a frame; group a portion of the plurality of pixels having a common color into a block; and generate a color list including the common color based on a threshold value corresponding to the block.
摘要:
A power failure protection circuit (10) for a non-volatile semiconductor storage device includes at least an energy storage unit (C1) that serves as a backup power supply for providing backup electrical energy when a power failure occurs. During normal operation of the device, a main control unit (12) is responsible for controlling an external power input to charge the energy storage unit, for dynamically detecting the status of the energy storage unit and for using information about the status to ensure sufficient backup electrical energy for the energy storage unit. During an abnormal operation of the power supply, the main control unit (12) is responsible for discharging the energy storage unit.
摘要:
In one embodiment, an online collaborative computing session is initiated between a presenter device and a plurality of attendee devices via a server in a computer network. The server distributes session data from the presenter device to the plurality of attendee devices. To decrease the amount of traffic in the network, at least one of the plurality of attendee devices may be selected as a super node, where each super node is then responsible for one or more corresponding attendee devices of the session. The session data is received at the super nodes and distributed from the super node to its one or more corresponding attendee devices.