Abstract: A method for extracting germanium based on acid decomposition is provided, including acid decomposition and post-treatment steps, and specifically including: adding an acid to a coal ash for conditioning to obtain a material a; heating the material a to 350° C. to 800° C., and keeping the material a at this temperature for 10 min to 10 h to obtain an acid-decomposed material b; milling the acid-decomposed material b until more than 60% of a milled material has a particle size of less than 200 mesh to obtain a material c; subjecting the material c to distillation to obtain a residual slurry d and a distillation fraction e; and hydrolyzing the distillation fraction e with a dilute hydrochloric acid solution, and then oven-drying to obtain GeO2.

Abstract: A policy and charging rules function (PCRF) device includes a memory storage comprising instructions, at least one network interface, and at least one processor coupled to the memory and to the at least one network interface. The instructions are executed by the at least one processor to receive a policy request of a first user sent by a gateway device; determine, according to the policy request, that the first user needs to use a counter of a second user; acquire a current status of the counter of the second user using a session of the second user established between the PCRF device and a charging system; and generate a control policy of the first user according to the current status of the counter of the second user and send the control policy to the gateway device.

Abstract: A policy and charging rules function (PCRF) device includes a memory storage comprising instructions, at least one network interface, and at least one processor coupled to the memory and to the at least one network interface. The instructions are executed by the at least one processor to receive a policy request of a first user sent by a gateway device; determine, according to the policy request, that the first user needs to use a counter of a second user; acquire a current status of the counter of the second user using a session of the second user established between the PCRF device and a charging system; and generate a control policy of the first user according to the current status of the counter of the second user and send the control policy to the gateway device.

Abstract: A policy decision method is provided, including receiving, by a policy and charging rules function (PCRF) device, a first user policy request for a first user sent by a gateway device, determining, by the PCRF device, that the first user and a second user share a usage quota, and the second user is an owner user of the usage quota, acquiring, by the PCRF device, a current second user counter status of a second user counter of the second user, and generating, by the PCRF device, a first user control policy according to the current second user counter status and sending the first user control policy to the gateway device. The present invention can implement sharing of accumulated data among users, reduces processing pressure of the charging system, and decreases a performance loss of the charging system.

Abstract: A policy decision method is provided, including receiving, by a policy and charging rules function (PCRF) device, a first user policy request for a first user sent by a gateway device, determining, by the PCRF device, that the first user and a second user share a usage quota, and the second user is an owner user of the usage quota, acquiring, by the PCRF device, a current second user counter status of a second user counter of the second user, and generating, by the PCRF device, a first user control policy according to the current second user counter status and sending the first user control policy to the gateway device. The present invention can implement sharing of accumulated data among users, reduces processing pressure of the charging system, and decreases a performance loss of the charging system.

Abstract: A policy decision method is provided, including receiving, by a policy and charging rules function (PCRF) device, a first user policy request for a first user sent by a gateway device, determining, by the PCRF device, that the first user and a second user share a usage quota, and the second user is an owner user of the usage quota, acquiring, by the PCRF device, a current second user counter status of a second user counter of the second user, and generating, by the PCRF device, a first user control policy according to the current second user counter status and sending the first user control policy to the gateway device. The present invention can implement sharing of accumulated data among users, reduces processing pressure of the charging system, and decreases a performance loss of the charging system.

Abstract: A policy decision method is provided, including receiving, by a policy and charging rules function (PCRF) device, a first user policy request for a first user sent by a gateway device, determining, by the PCRF device, that the first user and a second user share a usage quota, and the second user is an owner user of the usage quota, acquiring, by the PCRF device, a current second user counter status of a second user counter of the second user, and generating, by the PCRF device, a first user control policy according to the current second user counter status and sending the first user control policy to the gateway device. The present invention can implement sharing of accumulated data among users, reduces processing pressure of the charging system, and decreases a performance loss of the charging system.

Abstract: A policy decision method is provided, including receiving, by a policy and charging rules function (PCRF) device, a first user policy request for a first user sent by a gateway device, determining, by the PCRF device, that the first user and a second user share a usage quota, and the second user is an owner user of the usage quota, acquiring, by the PCRF device, a current second user counter status of a second user counter of the second user, and generating, by the PCRF device, a first user control policy according to the current second user counter status and sending the first user control policy to the gateway device. The present invention can implement sharing of accumulated data among users, reduces processing pressure of the charging system, and decreases a performance loss of the charging system.

Abstract: A policy decision method is provided, including: receiving, by a policy and charging rules function PCRF device, a policy request of a first user sent by a gateway device; determining, according to the policy request, that the first user needs to use a counter of a second user; acquiring, a current status of the counter of the second user by using a session that is of the second user and established between the PCRF device and a charging system; and generating, a control policy of the first user according to the current status of the counter of the second user, and sending the control policy to the gateway device. The present invention can implement sharing of accumulated data among users, reduces processing pressure of the charging system, and decreases a performance loss of the charging system.

Abstract: A policy decision method is provided, including: receiving, by a policy and charging rules function PCRF device, a policy request of a first user sent by a gateway device; determining, according to the policy request, that the first user needs to use a counter of a second user; acquiring, a current status of the counter of the second user by using a session that is of the second user and established between the PCRF device and a charging system; and generating, a control policy of the first user according to the current status of the counter of the second user, and sending the control policy to the gateway device. The present invention can implement sharing of accumulated data among users, reduces processing pressure of the charging system, and decreases a performance loss of the charging system.

Abstract: An air conditioner is disclosed. The compressor has an entrance coupled to an exit of the evaporator via the first ON/OFF valve; and an exit coupled to an entrance of the condenser via the first flow-direction valve. The liquid pump has an entrance coupled to an exit of the liquid accumulator via the second ON/OFF valve; and an exit coupled to an entrance of the throttling device via the second flow-direction valve. An exit of the condenser is coupled to an entrance of the liquid accumulator; an exit of the throttling device is coupled to an entrance of the evaporator. The compressor's bypass pipe has an entrance coupled to an exit of the evaporator; and an exit coupled to an entrance of the condenser. The liquid pump's bypass pipe has an entrance coupled to an exit of the liquid accumulator; an exit coupled to an entrance of the throttling device.

Abstract: An air conditioner includes an evaporator (9), a condenser (14), a compressor (11), a liquid pump (3), a liquid accumulator (1), a first ON/OFF control valve element (10), a first valve element for flow direction control (12), a second ON/OFF control valve element (2), a second valve element for flow direction control (5), a throttling device (8), a liquid pump's bypass pipe (16) with a third valve element for flow direction control (6) and a compressor's bypass pipe (18) with a forth valve element for flow direction control (13). An entrance of the compressor (11) is coupled to an exit of the evaporator (9) via the first ON/OFF control valve element (10); an exit of the compressor (11) is coupled to an entrance of the condenser (14) via the first valve element for flow direction control (12).

Abstract: A kitchen deck side spray assembly for attachment to a water hose, including a spray body having an outer surface and an inner surface, the spray body being plated with a metal on both its inner and outer surfaces; and an inert water conduit, the inert water conduit being substantially enclosed by that spray body.

Abstract: A faucet side spray assembly, including a hand-held body. The hand-held body includes all of the functional elements of the faucet side spray assembly. The faucet side spray assembly further includes one or more ornamental elements, each of which may be removably secured to that hand-held body. The ornamental elements preferably include a pair of ornamental elements, that is, an ornamental spray head and an ornamental spray body. Preferably, each of the ornamental elements are secured to the hand-held body by sliding them onto and over the opposite ends of the hand-held body.