Abstract: Provided is a method for determining whitening efficacy of a cosmetic raw material. In the disclosure, specific binding of melanocyte-stimulating hormone (?-MSH) to melanocortical receptor I (MC1R) on melanocytes activates adenylyl cyclase (AC). The AC could catalyze the conversion of adenosine triphosphate (ATP) into cyclic adenosine monophosphate (cAMP), causing an increased level of intracellular cAMP. Increased CAMP level activates tyrosinase through protein kinase A (PKA), thereby promoting melanin production, and then achieving the determination of a relative melanin content.

Abstract: A method of switching between mobile networks comprises the steps of: receiving, by a server, a mobile network switching request from the communication terminal input by a user; outputting, by the server, a list of mobile networks where the communication terminal is currently located to the user in response to receiving the mobile network switching request from the communication terminal; acquiring, by the communication terminal, a switched-to mobile network selected by the user from the list of mobile networks; allocating, by the server, a SIM card corresponding to the switched-to mobile network to the communication terminal; and switching, by the communication terminal, a switched-from mobile network to the switched-to mobile network by means of the SIM card. The problems in the prior art of being unable to freely change a virtual subscriber identity model card and switch a corresponding mobile network are effectively solved, thereby improving the user experience.

Abstract: A method of switching between mobile networks comprises the steps of: receiving, by a server, a mobile network switching request from the communication terminal input by a user; outputting, by the server, a list of mobile networks where the communication terminal is currently located to the user in response to receiving the mobile network switching request from the communication terminal; acquiring, by the communication terminal, a switched-to mobile network selected by the user from the list of mobile networks; allocating, by the server, a SIM card corresponding to the switched-to mobile network to the communication terminal; and switching, by the communication terminal, a switched-from mobile network to the switched-to mobile network by means of the SIM card. The problems in the prior art of being unable to freely change a virtual subscriber identity model card and switch a corresponding mobile network are effectively solved, thereby improving the user experience.

Abstract: The present invention provides a fissured substrata water pumping apparatus and methods thereof. The fissured substrata water pumping apparatus includes a water pumping pipe inserted into a drilled hole under a roadway floor; one or more unidirectional water-blocking plates configured inside the water pumping pipe; a servo pump; and an annular drainage siphon having a first end connected to an upper end of the water pumping pipe, and a second end connected to an inlet end of the servo pump through a valve.

Abstract: The present invention provides a fissured substrata water pumping apparatus and methods thereof. The fissured substrata water pumping apparatus includes a water pumping pipe inserted into a drilled hole under a roadway floor; one or more unidirectional water-blocking plates configured inside the water pumping pipe; a servo pump; and an annular drainage siphon having a first end connected to an upper end of the water pumping pipe, and a second end connected to an inlet end of the servo pump through a valve.