Abstract: A server with processor(s) and memory receives a transaction request from a first device to perform a transaction with an account and determines a security level for the transaction. When the security level satisfies predetermined criterion, the server: instructs the first device to suspend the transaction and to display a first interface indicating the suspended transaction; and sends a confirmation request, to a second device associated with the account, for voice verification of the transaction. The server receives voice verification information from the second device that includes audio data provided by a user of the second device and determines whether the voice verification information matches stored account verification data corresponding to the account. When there is a match, the server: processes the transaction; and instructs the first device to complete the transaction and to replace display of the first interface with a second interface indicating the completed transaction.

Abstract: An anti-fatigue composition consisting of 20(S)-protopanoxadiol and lycium barbarum polysaccharide. Experiments prove that the composition exhibits a significant anti-fatigue effect. In comparison with the effect attained by the single use of lycium barbarum polysaccharide or 20(S)-protopanoxadiol, the combined use of 20(S)-protopanoxadiol and lycium barbarum polysaccharide exerts an obvious synergistic effect.

Abstract: In one aspect, a method of forming an electrode for an electrochemical device is disclosed. In one embodiment, the method includes the steps of mixing at least a first amount of a catalyst and a second amount of an ionomer or uncharged polymer to form a solution and delivering the solution into a metallic needle having a needle tip. The method further includes the steps of applying a voltage between the needle tip and a collector substrate positioned at a distance from the needle tip, and extruding the solution from the needle tip at a flow rate such as to generate electrospun fibers and deposit the generated fibers on the collector substrate to form a mat with a porous network of fibers. Each fiber in the porous network of the mat has distributed particles of the catalyst. The method also includes the step of pressing the mat onto a membrane.

Abstract: An anti-fatigue composition consisting of 20(S)-protopanoxadiol and lycium barbarum polysaccharide. Experiments prove that the composition exhibits a significant anti-fatigue effect. In comparison with the effect attained by the single use of lycium barbarum polysaccharide or 20(S)-protopanoxadiol, the combined use of 20(S)-protopanoxadiol and lycium barbarum polysaccharide exerts an obvious a clear synergistic effect.