Abstract: The present invention relates to a novel compound represented by formula (1), or salt thereof, wherein R is hydroxy group or hydrogen atom; R1 and R2 are the same or different, and are each independently benzyl group which may have a substituent. The present invention provides therapeutically agents, which have remarkable stability against cytidine deaminase, a metabolic enzyme, can be absorbed in vivo by oral administration and inhibit protein synthesis by being incorporated easily into nucleic acid bio-synthesis in vivo for replacing injection agent (5-azacytidine or 2?-deoxy-5-azacytidine) used in clinic for treating myeloma.

Abstract: An easily controllable umbrella includes a base, a column, an umbrella frame, lighting elements, a control device for controlling the lighting elements, a power supply assembly with a power plug for powering the lighting elements, a control panel, a touch control circuit board, and a remote control circuit board; the lighting elements, the control panel, the touch control circuit board, the remote control circuit board and the power plug form a lighting circuit, and the remote control circuit board controls the touch control circuit board. The control device includes a touch control circuit board and a remote control circuit board, remote control of the umbrella being realized through a remote control signal-matched with a receiver on the remote control circuit board, touch control of the umbrella being realized by pressing the umbrella. That is, the umbrella can support both remote control and touch control, and is thus easy to use.

Abstract: A method, an apparatus, and a system are provided for issuing a partition balancing subtask, which are applied to a controller. After receiving a second partition balancing task, the controller generates a second partition balancing subtask set, where the second partition balancing subtask set includes at least one partition balancing subtask, and each partition balancing subtask records a migration partition, a node to which the migration partition belongs, and a destination node; searches a current partition balancing subtask set, and deletes a repeated partition balancing subtask between the second partition balancing subtask set and the current partition balancing subtask set; and issues remaining partition balancing subtasks after the repeated partition balancing subtask is deleted to the destination node recorded in each partition balancing subtask.

Abstract: An adjustable umbrella includes an umbrella base, a stand column, a sliding sleeve, a cross rod, an adjustment mechanism provided between the bottom joint and the bottom end of the cross rod, a drawing rod, and an umbrella frame. The top of the umbrella frame is rotatably attached to the top end of the cross rod, an internal tube is rotatably disposed inside the cross rod, the bottom end of the internal tube is connected to the adjustment mechanism, the top end of the internal tube is connected to the top of the umbrella frame. When in use, the internal tube connected to the umbrella frame may be rotated by rotating the umbrella frame, so that the leftward and rightward adjustment of a sun-shading angle is realized in coordination with the adjusting mechanism, and operation thereof is simple and convenient.

Abstract: An adjustable umbrella includes an umbrella base, a stand column, a sliding sleeve, a cross rod, an adjustment mechanism provided between the bottom joint and the bottom end of the cross rod, a drawing rod, and an umbrella frame. The top of the umbrella frame is rotatably attached to the top end of the cross rod, an internal tube is rotatably disposed inside the cross rod, the bottom end of the internal tube is connected to the adjustment mechanism, the top end of the internal tube is connected to the top of the umbrella frame. When in use, the internal tube connected to the umbrella frame may be rotated by rotating the umbrella frame, so that the leftward and rightward adjustment of a sun-shading angle is realized in coordination with the adjusting mechanism, and operation thereof is simple and convenient.

Abstract: A method, an apparatus, and a system are provided for issuing a partition balancing subtask, which are applied to a controller. After receiving a second partition balancing task, the controller generates a second partition balancing subtask set, where the second partition balancing subtask set includes at least one partition balancing subtask, and each partition balancing subtask records a migration partition, a node to which the migration partition belongs, and a destination node; searches a current partition balancing subtask set, and deletes a repeated partition balancing subtask between the second partition balancing subtask set and the current partition balancing subtask set; and issues remaining partition balancing subtasks after the repeated partition balancing subtask is deleted to the destination node recorded in each partition balancing subtask.

Abstract: A method, an apparatus, and a system for issuing a partition balancing subtask, which are applied to a controller and may be used to implement migration of a partition between nodes. After receiving a second partition balancing task, the controller generates a second partition balancing subtask set, where the second partition balancing subtask set includes at least one partition balancing subtask, and each partition balancing subtask records: a migration partition, a node to which the migration partition belongs, and a destination node; searches a current partition balancing subtask set, and deletes a repeated partition balancing subtask between the second partition balancing subtask set and the current partition balancing subtask set; and issues remaining partition balancing subtasks after the repeated partition balancing subtask is deleted to the destination node recorded in each partition balancing subtask.

Abstract: A method, an apparatus, and a system for issuing a partition balancing subtask, which are applied to a controller and may be used to implement migration of a partition between nodes. After receiving a second partition balancing task, the controller generates a second partition balancing subtask set, where the second partition balancing subtask set includes at least one partition balancing subtask, and each partition balancing subtask records: a migration partition, a node to which the migration partition belongs, and a destination node; searches a current partition balancing subtask set, and deletes a repeated partition balancing subtask between the second partition balancing subtask set and the current partition balancing subtask set; and issues remaining partition balancing subtasks after the repeated partition balancing subtask is deleted to the destination node recorded in each partition balancing subtask.

Abstract: Methods, devices and apparatus are provided for differentiating operators in a wireless communications network. Information about the frequency occupied by the air interface resource of a service is received, and corresponding operator information is provided from the configured mapping relation between frequency information and operator information according to the received information about the frequency occupied by the air interface resource of the service. A Base Station Controller (BSC)/Packet Control Function (PCF), and a device and system for differentiating operators in a network for performing the above functions is also provided.

Abstract: An auto bending structure of sunshade has an upper section of bending and a lower section of bending, which are connected by a sliding rod with a top through hole and a bottom through hole. The bottom through hole has a guide pin sliding in an arc groove provided on the scarf joint part of the lower section of bending, linear groves corresponding to the arc groove are provided on both sides of the groove of the upper section of bending. A sliding sleeve with a bottom through hole is provided on the top of said sliding rod, the bottom through hole of said sliding sleeve is corresponding to the top through hole of the sliding rod. The upper section of umbrella stem is provided with a linear groove which is surrounded by a ring, the ring is connected with the sliding rod and sliding sleeve by the connecting pin, which slides in the linear groove to make the ring to cooperate with the lower nest moving up and down as pulled by the umbrella string.

Abstract: An auto bending structure of sunshade comprising an upper section of bending and a lower section of bending movably riveted featuring that: a sliding rod is provided in the pivotally connected upper section of bending and lower section of bending, through holes are provided on the top and bottom of said sliding rod, the through hole on the bottom of said sliding rod is provided with a guide pin, an arc groove for said guide pin to slide on is provided on the scarf joint part of the lower section of bending, linear groves corresponding to said arc groove for said guide pin to slide on are provided on both sides of said groove of the upper section of bending, a sliding sleeve with a through hole on the bottom is provided on the top of said sliding rod, said through hole on the bottom of said sliding sleeve corresponds to the through hole on the top of said sliding rod, correspondingly, the upper section of umbrella stem is provided with a linear groove on the outer wall and is surrounded by a ring, which is con

Abstract: Methods, devices and apparatus are provided for differentiating operators in a wireless communications network. Information about the frequency occupied by the air interface resource of a service is received, and corresponding operator information is provided from the configured mapping relation between frequency information and operator information according to the received information about the frequency occupied by the air interface resource of the service. A Base Station Controller (BSC)/Packet Control Function (PCF), and a device and system for differentiating operators in a network for performing the above functions is also provided.