摘要:
A system, method and computer program product provides for accurate demand modeling and forecasting in retail categories using retail sales data sets with missing data values, in order to enable a variety of retail decision-support applications.
摘要:
A system, method and computer program product provides for accurate demand modeling and forecasting in retail categories using retail sales data sets with missing data values, in order to enable a variety of retail decision-support applications.
摘要:
The disclosure discloses a method and device for detecting a state of an overcurrent protector for a battery, wherein a voltage Uout of a power supply and a voltage Ubat of a battery connected to the power supply via an overcurrent protector is acquired, and U=|Uout−Ubat| is calculated; when UL≦U≦UH and |Ibat|≦Imin, the voltage of the power supply is adjusted to be U′out, wherein UL and UH are the minimum value and maximum value of a difference between the voltage of the power supply and the voltage of the battery, respectively, Ibat is a current of the battery, and Imin is a current detecting precision for detecting a current equipment of the battery; the voltage of the battery U′bat after adjusting the voltage of the power supply is acquired, and U′=|U′out−U′bat| is calculated; and a state of the overcurrent protector for the battery is determined. With the disclosure, in the case that the difference between the voltage of the battery and the supply voltage is small, by regulating the supply voltage and comparing the voltage difference across the overcurrent protector again, accurate detection of the state of the overcurrent protector for the battery as well as reduction of detecting costs is enabled.
摘要:
New use of icariin and Epimedium flavaoids containing icariin is provided by the present invention. Specifically, uses of compounds of Formula I or Epimedium containing compounds of formula I, Epimedium flavanoids, or extracts of Epimedium in manufacturing medicaments for treating, preventing, reducing and/or relieving diseases and/or conditoins related to neural myelin sheath impairments, or use of above materials in manufacturing medicaments for relieving demyelination and/or promoting repair of myelin sheath are provided by the present application, wherein, R1 is selected from H, halogen, —C1-6 alkyl, and —C(O)—C1-4 alkyl
摘要:
Embodiments of the invention disclose a method for preparing an aqueous nano-pigment dispersion. The method comprises mixing 2.5 wt %˜40 wt % styrene with polymerization inhibitors removed by evaporation, 2.5 wt %˜20 wt % acrylate monomer, 0.25 wt %˜5 wt % crosslinking monomer, 0.05 wt %˜0.5 wt % emulsification adjuvant, and 0.05 wt %˜0.5 wt % oil soluble initiator, adding 0.25 wt %˜2.5 wt % organic pigments to be dispersed to form an oil phase solution after dissolution; dissolving 0.05 wt %˜2 wt % emulsifier and 0.05 wt %˜2 wt % buffer in 40 wt % wt˜90 wt % deionized water to form an aqueous solution; mixing the oil phase solution and the aqueous phase solution, and then homogenizing them into fine emulsion; transferring the fine emulsion into a reactor; heating to increase the temperature to initiate the polymerization; after reacting, adding an alkaline soluble monomer; after continuing the reaction, cooling the temperature to the room temperature; adjusting pH to weak alkaline; and filtering to obtain the aqueous nano-pigment dispersion.
摘要:
The present disclosure discloses a converter system, which at least includes the first and second back-to-back converters. The first back-to-back converter includes a first rectifier module and a first inverter module. The first rectifier module is used to convert a first AC voltage to a first DC voltage. The first inverter module is used to convert the first DC voltage to a second AC voltage. The second back-to-back converter includes a second rectifier module and a second inverter module. The second rectifier module is used to convert the first AC voltage to a second DC voltage. The second inverter module is used to convert the second DC voltage to the second AC voltage. The converter system can suppress the circular current through the synchronous operation of the first and second rectifiers or the synchronous operation of the first and second inverters.
摘要:
Disclosed are embodiments relating to a process for reducing the total acid number of a hydrocarbon feed by contacting the feed with a metal titanate catalyst having an MTiO3 structure wherein M is a metal having a valence of 2+, resulting in a hydrocarbon product having a final total acid number lower than the initial total acid number of the feed. The process is useful for pretreating high acid crudes prior to further processing thus avoiding corrosion of equipment used in refining operations. The process can be integrated into conventional refining operations in order to treat various refinery streams. In one embodiment, a process is provided for refining a low acid crude oil and a high acid crude oil by separately introducing a relatively low acid crude oil feed and a relatively high acid crude oil feed to an atmospheric distillation column, wherein the relatively high acid crude oil feed is contacted with a metal titanate catalyst prior to introduction to the atmospheric distillation column.
摘要:
An imaging lens arrangement and method have been described for use with an imaging projector system including a display. A plurality of no more than four lenses can be arranged to receive an object image that emits from the display to propagate through the plurality of lenses to produce a high-resolution projected image from the object image. The imaging projector system has compact configuration, low height profile and provides high performance.
摘要:
An embodiment of the invention discloses a kind of electrophoretic ink comprising an electrophoretic display solution which is an electrorheological fluid comprising a base solution, solid particles and an additive, wherein the solid particles account for 5%-50% of the electrorheological fluid by mass-volume percentage. The electrophoretic display solution is preferably a negative electrorheological fluid. The invention also discloses an electronic paper comprising the electrophoretic ink and a display method for the electronic paper.