Abstract: A transaction system, comprising: a first-grade account, wherein the first-grade account is a platform-grade master account which is configured to receive external imported funds and can distribute the external imported funds to a second-grade account; the second-grade account is configured to receive the funds distributed by the first-grade account, and can distribute the received funds distributed by the first-grade account to a third-grade account; the third-grade account is configured to undertake a user-oriented transaction service; wherein when the transaction service undertaken by the third-grade account is a withdrawal service, a withdrawal amount is deducted from the third-grade account; and when the withdrawal amount deducted from the third-grade account is less than a total withdrawal amount corresponding to a current withdrawal service, the second-grade account is requested to retrieve a first residual withdrawal amount which is an amount obtained by subtracting the withdrawal amount deducted from

Abstract: Provided is a corrosion-resistant, high-hardness alloy composition, which realizes both corrosion resistance and high hardness by using a Ni—Co—Cr—Mo-based alloy and optimizing the chemical composition, heat treatment conditions and processing conditions thereof, and a method for producing that alloy composition. The alloy composition is an alloy composition comprising 15.5% by weight to 16.5% by weight of Cr, 7.5% by weight to 15.5% by weight of Mo, 0% by weight to 30% by weight of Co, 4.5% by weight to 15% by weight of Fe and 0.5% by weight to 4.0% by weight of Cu, with the remainder consisting of Ni and unavoidably included elements, wherein the crystal phase consists only of a 7 phase and the Vickers hardness at room temperature is 500 HV or more. The alloy composition is obtained by subjecting an ingot of an alloy having the aforementioned composition to homogenization treatment for 4 hours to 24 hours at 1100° C. to 1300° C.

Abstract: Provided is a corrosion-resistant, high-hardness alloy composition, which realizes both corrosion resistance and high hardness by using a Ni—Co—Cr—Mo-based alloy and optimizing the chemical composition, heat treatment conditions and processing conditions thereof, and a method for producing that alloy composition. The alloy composition is an alloy composition comprising 15.5% by weight to 16.5% by weight of Cr, 7.5% by weight to 15.5% by weight of Mo, 0% by weight to 30% by weight of Co, 4.5% by weight to 15% by weight of Fe and 0.5% by weight to 4.0% by weight of Cu, with the remainder consisting of Ni and unavoidably included elements, wherein the crystal phase consists only of a ? phase and the Vickers hardness at room temperature is 500 HV or more. The alloy composition is obtained by subjecting an ingot of an alloy having the aforementioned composition to homogenization treatment for 4 hours to 24 hours at 1100° C. to 1300° C.

Abstract: Disclosed herein are novel methods for preventing or delaying preterm uterine contractions in a pregnant mammal. Also disclosed are novel methods for inducing uterine contractions in a pregnant mammal. In each case, control of uterine smooth muscle contractility is achieved by specifically targeting the MAPK ERK signal transduction cascade. Inactivation of the cascade is disclosed as a novel method for delaying labor. Activation of the MAPK ERK pathway is disclosed as a novel method for inducing labor.